Tanzania Energy Development and Access Project (TEDAP) P092154

Environmental Assessment – Environmental Audit of 18 Substations, Final Report

(EA) Part A

(November 2005)

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TANZANIA ELECTRIC SUPPLY COMPANY L MITED

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REINFORCEMENT AND UPGRADE OF DAR ES SALAAM, KILIMANJARO AND ARUSHA RANSMISSIONAND DISTRIBUTION SYSTEM PROJECT

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ENVIRONMENTAL AUDIT OF 18 SUB STATIC NS

FINAL REPORTNOVEMBER 2005

SUBMITTED TO:Natlonal Environment Management Council World BankP. 0. Box 63154

1818 H Street, NWDar s Salaam Washinaton DC 204 3 USATel.: 255-22-2127817 Tel: 202477-6391Fax: 255-22- 2134603 Fax: 202477-1234E-mail: nemc@nemctz.org Website: http:l/l .wwworldbank.org

Prepared by:Tanzania Electrc Suppl Company Limited' 'Directorate of Corporate Plan ing and ResearchEnvironment UnitP. 0. Box 90 4, Dar on Salaam

Tel: + 55022 2451130/39Contact: krabd illa@tanesco.co.tzWebsite: w Nw. tanescotz.com

Reinforcement and Upgrade of Dar es Salaam, KIimanjaro and Ar sha Transmisionand Distribution System

EXECUTIVE SUMMARY

1.0 Background

The demand for electric power in Tanzania has been on increase due to the Sowing economicand social situation in the country. Good governance, good policies, investor ' confidence andeconomic recovery programmes have stimulated the economic growth and s cial activities. In1986, Tanzania introduced and embarked on Economic Recovery Programme ( RP) backed by aseries of IMF inspired structural adjustment programmes. ERP concentrat on reformingagriculture, opening up the private sectors, deregulating food marketing, lib, lized trade andlifting foreign exchange controls. These programmes have resulted into urb nization and thegrowth in mining sector. The implication of these programmes to TANES NO has been theincrease of a number of customers in major cities in need of electricity conn ctions. However,most of the infrastructure have reached their capacities and cannot allow c nnection of newcustomers unless they are rehabilitated. The most affected are the substations and their voltagecarriage lines located in Dar es Salaam, Arusha and Moshi town centres.Tanzania's economy still faces considerable difficulties and many necessary r forms remain tobe implemented. It is important then for TANESCO and the Government of TT ania to supportthe industrial sector recovery by preventing frequent power outages and impro e power quality.This involves putting new investment in distribution systems and development f new sources ofelectricity.

In Tanzania, only about 11% of the population (34million)l enjoys the ele tricity. The totalnumber of customers (residential, industrial and commerce) connected by the nd of June 2005was 570,665 with average growth of between 6-9% since year 2000.2 In terms f generation, thetotal available installed capacity is 890MW. The sources include TANE SCO (590MW),SONGAS (20oMW), and the Independent Power Tanzania Limited-IPTL (1001 4W). TANESCOalso imports power from Uganda and Zambia for Kagera region and Tunduma, umbawanga andMbozi towns respectively.

TANESCO has a number of substations scattered all over the country. Some s ibstations are forthe stepping-up from e.g. I lkV to 220kV using 11/33/66/132/220kV conver ion transformnersand some are step-down substations which reduce the transmission voltage into distributienvoltage, say from 220kV to 1 kV. This environmental audit study was condu ted on some stepdown substations ranging from 220/132/33kV to 33/1 lkV.In 2002, TANESCO in collaboration with Japanese International Cooperatio Agency (JICA)prepared a Master Plan to improve the power systens in major towns o Dar es Salaan,Kilimanjaro and Arusha. The current power demands for these regions are on rverage 240MW,30MW and 38MW respectively.3 The Master Plan outlines areas of priorit and investmentsneeded to solve the frequent power outages experienced in major cities. Fu her, TANESCO1 2002 census

2 source TANESCO3 Source TANESCO, data up to May 2005Fnvironmental Audit Report -Final

Reinforcement and Upgrade of Dar es Salaam, Kilimaujaro and Ar sha Transmissionand Distribution Systemundertook several studies including Relief Project 2 done by NetGroup Solu ions (Pty) Ltd ofSouth Africa in 2004 and feasibility study on the Reinforcement and Upgrade f Dar es Salaam,Kilimanjaro and Arusha Transmission and Distribution system done by Lahn Cyer Intemationalof Germany in September 2004. All these studies identified areas of pri rity and type ofinvestment needed by TANESCO to improve the transmission and distribution ystems.Based on the above-mentioned studies, TANESCO consulted various fi anciers to seekassistance in implementing different components of the Master Plan. The Wo Id Bank (WB) asone of the contacted financiers showed interest in supporting TANESCO in t at respect. HenceTANESCO and the International Development Association (IDA)/World B are currentlypreparing a distribution rehabilitation and transmission reinforcement compo ent as part of theSongo Songo Gas Development and Power Generation Project (Credit 3569- A). The amountunder discussion with the WB is about US$ 57 million.2.0 The Project

The proposed project to be owned by TANESCO and co-financed by the Wc rld Bank and theNordic Development Fund (NDF) at an estimated cost of 70m USD consists of WC components:The first component involves the rehabilitation of 18 existing substation at Oyster Bay,Mikocheni, Msasani, Factory Zone I, Factory Zone II, City Centre, Factory one III, Sokoine,Kurasini and Ilala in Dar es Salaan. Others are Mount Meru, Unga Ltd., Kilt Ltd, Themi andNjiro in Arusha and Boma-Mbuzi, Trade School and Kiyungi in Kilimanjaro region. These 18substations out of all substations in Dar es Salaam, Arusha and Kilimanjaro h ve been selectedfor the rehabilitation because they are located in the areas with fast growing p wer demand andthe systems have reached the capacity limit hence they are overloaded. Furt *r there will be arepair and upgrade of the 11/33 kV distribution systems. This rehabilitatio of DistributionFacilities involves:

* Supply and installation of 22 additional 15MVA, 33/1 lkV transform .rs to relieve theoverload in the existing substations (i.e. replacing low capacity transfor mers e.g. 5MVAwith medium capacity of 15MVA transformers)* Supply and installation of about 33, 33/11kV circuit breakers and 24 IlkV circuitbreakers with associated switchboards

* Supply and installation of 50MVA 132/33kV transforrner with a ircuit breaker atKiyungi, Njiro, and Kurasini Substations.* Supply of materials and equipment Tor repair/upgrading of the distributi n systems whichmake a provision for the following: reconductoring, protection syste rs, auto-reclosersand auto load break switches, SCADA, section analysers, boosters, lig tening protection,distribution transformers, new 33/1 IkV lines and statistical metering

Upgrading of substations means replacement of power transforners by a hi her rated powertransformer and its associated breakers. This will involve mainly upgrading of he foundations toa higher bearing capacity, thus necessitating having temporary measures in pla e to avoid poweroutages.

* The second component involves the construction of new 132kV trans nission lines thatwill connect the Ubungo Main substation with upgraded 132/33kV Oys er Bay, Kurasini,Environncnial Audit Repon -Final

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Reinforcement and Upgrade of Dar es Salaam, Kilinmanjaro and Ar sha Trausnissionand Distribution System --Mbagala, Factory Zone II (Gongolamboto), Kinycrezi and Factory done III (Kipawa)substations. Also component two involves the construction of addition I Kiyungi - Njiro1 132kV transmission line.

2.1 Project ObjectivesThe project will achieve the following objectives:* Reducing the duration and frequency of power interruptions* Improving voltage conditions at consumers' premises* Reducing the power system losses* Improvement in marketing by facilitating the possibilities of connecting more customers

* Improvement of TANESCO image to the public (less complains from c stomers)* Attraction of more revenue for the company* The project will contribute to the effort by the Tanzanian Government of improving thelivelihood of ordinary Tanzanians through the National Strategy fo the Growth andReduction of Poverty in Tanzania (MKUKUTA)

Component I of this project requires a comprehensive Environmental Audit ssessment (EAA)which is reported in this report while component 2 has separate comprehensi e reports namely;Environmental Impact Assessment (EIA and SIA) and Resettlement Action Pla 1 (RAP).3.0 The Purpose of the Environmental Audit Assessment

World Bank requires that all investments comply with the World Bank Safel uard Policies andEnvironmnental Guidelines as presented in the Pollution Prevention and Aba ement Handbook(1998) and IFC Environmental Guidelines. It is also a Tanzanian requiremer t that all projectsshould undertake the Environmental Assessment before the implementatio . The TanzanianEnvironmental Management Act (2004) section 81(1-4) stipulates that it is th obligation of theproject proponent to undertake environmental impact assessment study of the p oject.Hence, for this study the following major guidelines and policies will be appli d: Electric PowerTransmission and Distribution guidelines (IFC), Occupational Health & fety (IFC), andNatural Habitat (OP 4.04) because of potential oil pollution. Additionally, nat onal requirementas reflected in various Tanzania's sectoral policies, the National Environ ent ManagementCouncil (NEMC) Environmental Impact Assessment Guidelines (2002 apdate) and theEnvironmental Management Act (2004).The purposes of the Environmental Audit Assessment are:* To identify present inadequacies in environmental management, and o cupational health

and safety issues in the facilities to be rehabilitated. Of particular inter st are the presentpollution if any and its potential clean-up costsI To detemiine the need for remedial actions necessary to bring the sub ect facilities intocompliance with World Bank Safeguard Policies and. To reconunend actions to be taken to improve and strength :n TANESCO'senvironmental, health and safety management

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Reinforcement and Upgrade of Dar as Salaam, Kilimnanjaro and Ar ha Transmissionand Dlstribullon System3.1 Scope of WorkThe Environmental Audit Assessment focused only on the 18 existing substati ns earmarked forrehabilitation in Dar es Salaam, Arusha and Kilimanjaro as outlined above plus one additionalsubstation at Chalinze in Coast Region. The Audit took place in November and December 2004.4.0 Methodology and Approach

To accomplish the audit assessment the following approach was applied:4.1 Reviewing records and relevant documentsAll available relevant in house documents were reviewed. The documents i lude: the MasterPlan Study on the Power Sector for Major Towns in the United Republic of zania (2002) byEPDC of Japan; Reinforcement and Upgrade of Dar es Salaam, Kilima jaro and ArushaTransmnission and Distribution System Feasibility Study Report (200 ) by. LahmeyerIntemational; Environmental Management Act (EMA -2004); NEMC s EnviromnentalGuidelines (2002); various Tanzanian sectoral policies; World Bank Operational Policies; WorldBank, (IFC) Pollution Prevention and Abatement Handbook; environmental and occupationalhealth and safety guidelines and standards. These documents formed a founda on of conductingthis environmnental audit through a checklist.

The checklist identifies issue as per the following criteria as deduced fr m the guidelinesmentioned above.

* General environmental management;* Waste management practices;* Hazardous materials management;* Groundwater and soil contamination control;* Occupational health and safety management; and* Noise management (Noise level measurements were taken in some su stations to get an

overview of the noise levels in the substations)

4.2 Site Observations and InterviewAll 18 substations in Dar es Salaamn, Kilimanjaro and Arusha were visited for essment plus anadditional one at Chalinzc. Consultations with NEMC and Municipal auth rities were madebefore the site visit. Also during the site visit, interviews and brief meetings ith relevant staffand residents around the substations were conducted.

4.3 Use of secondary dataDue to resource constraint, this assessment used available data and laboratcry test results foridentifying polychlorinated biphenyls (PCB) in transfomiers and switchgeus conducted byprevious studies in the same substations. The studies include Situation Assessment andEnvironmental Audit, Power Sector Restructuring Project- Final Report Versi n 2.0 prepared byStone & Webster Consultants, May 2004 and Inventory of Electrical Equipn ent Suspected toContain Polychlorinated Biphenyls (PCBs) prepared by the Vice Presidents O ice June 2004.4.4 PCB identirication methods

The PCBs identification methods used in this study include:Environmai It Audit Report -Final iV

Reinforcement and Upgrade of Dar es Salaim, Kilimanjaro and Ar sha Transmissionand Distribution SystemManufacturer's narneplate infornation; Elimination method cut off year assu led 1980; Densitytest; Chlorine frame test; Dexsil test kits; and Laboratory testing (gas chromatogr iphy with electroncapture then comparing results against standard chromatograms for known arochlors).Transforner found to contain concentration of less than 50ppm of PCB was lassified as PCBfree. Equipment found to have 50ppm or above but below 500ppm ras classified ascontaminated. Equipment found to contain 500ppm and above of PCBs is classi ied as pure PCB.4.5 Findings evaluationThrough field observations, site screening tests, laboratory analysis, checklis and professionaljudgment the audit findings were evaluated and prioritized as of high, mediu n or low concerndepending on the severity of the problem and health, safety or environmen Ial impact it maycause.

5.0 Report formatThis environmental audit report comprises of five chapters, introduction o the project andmethodology; legal framework; baseline information and the audit findin ; environmentalmanagement plan & monitoring; and conclusion and recommendation. The rep rt has appendicesthat include location map of substations, photo documentation, PCB laborato results of somesubstations, the criteria checklist of audited substations and list of consulted p le.6.0 Public ConcernThe major public concern was a health risk due to electromagnetic effect. No n ise complains orconcerns were reported during the survey.

7.0 Remedial CostsThe identified weaknesses are small and could be covered in region's repair d maintenancebudgets. Regions need to provide the remedial budgets as appropriate so t at the costs areincluded in the annual budgets for approval.Note: Laboratory analysis of the soil samples under the transforners susp ted of PCBs isawaiting the budget. When budget is secured soil samples will be sent for the la oratory analysis.8.0. Training NeedsIt is proposed that as part of this project, training should be considered foci sing on capacitybuilding of the environmental unit in areas of Environmental Audit, Social Imp ct Assessment &management, health and safety awareness seminars and work procedure for Substationengineers, technicians and operators. The anticipated cost for the training and l quipment for theyear 2006 is about USD 69,300.

9.0 Environmental Management Plan (EMP)Environmental Management Plan (EMP) and monitoring have been included. E AP has identifiedenvironmental impacts and their mitigation measures. Monitoring plan has sti ulated indicatorsto be monitored and required resources to ensure that mitigation measures ar implemented. Itimportant that TANESCO provide resources estimated to be USD I 1,000 annu, lly to implementthe EMP as shown on the plan.Environmcntal Audit Rort -Final

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Reinforceenent and Upgrade of Dar es Salaam, Kilimanjaro and Aru ha Transmissionsad Distribution System

10.0 Major Audit flndings and RecommendationsBelow are the recommendations following the audit findings. Correction o these observedweaknesses and shortcomings is important so as meet the minimum World Bank requirement:High Priority

1. TANESCO should ensure that transformers identified having PCB conta ination (below500ppm) are not moved from where they are located. In addition substation Dngineers shouldensure that there is no leakage to the soil or water. Further there should t appropriate oilhandling at all times while waiting for the national strategic plan to elimina e POPs preparedby the Vice Presidents Office (VPO)

2. Although training has been taking place in TANESCO, trainings specific illy designed forsubstation engineers, technicians. and operators have been scarce and lim ted to very fewindividuals. TANESCO (Head office which coordinates employees' trainin s in cooperationwith regional offices) needs to organise regular courses (tailor made train ng programs) tosuit different cadres of substation employees and others. such as training n ay include workprocodures, health and safety matters, hazardous material handling and emergencypreparedness and response

3. Since it was observed that no clear identification of who has been assigned responsibility oftaking care for the environmental matters of the substations. Therefore, sub tation engineersor supervisors should be assigned also such a responsibility and re uired to reportperformance in monthly reports

4. Waste management need to be improved in all the substations as this 9as seen to be aproblem in most substations. Substation management should designate spec al areas (points)for waste collection before safe disposal. Special bins can be used to store ollected wastessuch as pieces of cables, insulators and other wastes in the substation site bef )re disposal5. Raise awareness of people working in the substation on the potential hazard f oil spill to theenvironment and how to handle it appropriately during refilling, oil filtering r maintenance.6. TANESCO Regional Offices -arc required to provide toilets and askari kios facilities in thesubstations for the convenience of workforce. There are some which need repair and somewhich need to be constructed. With exception of Njiro, Kiyungi, Ilala, and FZ III all othersubstations lack toilet, askari kiosk or both.

7. TANESCO (Regional Offices) should collect all old transformers dumped a substation siteswhich some of them have oil leakage and dispose them or store them in appr 3priate designedareas that may contain or prevent the oil leakage into the soil.

8. TANESCO should provide adequate fire fighting equipment in a right propo ion (foam, C02and powder) to fight any fire type in the substations and ensure that equipm nt are regularlychecked to be sure that they are working properly. Some substations had inadequate firefighting equipment or right proportion.Environnie,n* Audit Report -Final

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Reinforcement and Upgrade ofDar e Salaam, Kilimanjaro and Aru ha Transmissionand Distribution System

9. TANESCO should provide resources estimated at least USD 11,000 ann ally to facilitateimplementation of the proposed ESMP and monitoring plan. Other mitiga ion costs will becovered in construction costs.

IO. TANESCO Regional Offices should budget and urgently replace all lost o broken lids andslabs to improve the safety in the substations as some of the cable trench labs were foundbroken or missing increasing a safety risks at night and in emergency cases.

11. TANESCO's substation engineers in collaboration with their Regiona Offices shouldreequip the First aid kits as required since most of first aid kits are n t equipped withessential drugs.

12. TANESCO should ensure that fences are repaired, security lights worki Ig again and alldanger signs replaced to alert people of the potential dangers as they approac h the fences

Medium Priority

13. TANESCO needs to prepare an emnergency response plan in the event of fir , major accidentor major oil spills. All audited substations didn't have the plan. Workers nee to rehearse andunderstand the information flow in case of the emergency so as to check vhether the planworks as intended. Information flow charts should also be posted at a visible place

14. Since TANESCO has so far no formalized Environmental Management ystem (EMS) inspite of having an environmental unit, which deals with environmnent I matters. ThenTANESCO has to develop an EMS suitable to its activities or adopt ISO 1 000 standard inorder to improve its environmental management performance. In ad ition, fund forimplementing management plans should be made available

15. TANESCO should strengthen environmental management both a Head OfficeEnvironmental Unit and at the implementing Regions or plants16. TANESCO departments and substation engineers should prepare work pr medure manualsand instructions where such instructions are very essential and make .then available in a

known linguage to all substation workers. Many substations had rfo workin procedures andinstructions at all or had instruction written in a language not understandable by majority.

Overall TANESCO Managemeut Response X

TANESCO acknowledges the corporate responsibility and shall take correctivc measures ofthe identified envirounental and health aspects. The work and budget will be ir eluded in thecompany's business plan and eventually incorporated in the Company ErnvironmentalManagernent System (EMS).

TANESCO is committed to follow the country's policies and continue to comr unicate withrelevant sectors and ministries to ensure that environment is protected and health and safetyof workers and people around our facilities is guaranteed.

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Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Ar sha Transmissionand Distribution System

Acknowledgement

We would like to thank Directorate of Corporate Planning and Research for r sources guidanceand facilitation to the success of this Environmental audit study.We also like to acknowledge the constructive inputs and advice we received rom the NationalEnvironment Management Council (NEMC) beginning with ToR preparat on to the Multisectoral Technical Review Committee meeting.

We thank TANESCO Regional Managers Mr. Masasi, C. L. (Arusha), Mr Richard Nsulau(Kilimanjaro), Ms Eva Fumbuka (Kinondoni North), Mr. Kalokola M. (Ilala) md Mwaisaka N.(Temeke) for their consultation time and assistance whenever we asked ther . We also thanktheir staff of all levels who participated in one way or another in the Env ronmental Auditexercise.

Cooperation and assistance rendered by various staff of Municipal Councils of Arusha, Moshi,Kinondoni, Ilala, and Temeke is highly appreciated.

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Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Aru ha Transmissionand Distribution System ..

_._._._-._-ABBREVIATIONS AND ACRONYMS

AC - Air ConditioningBOD - Biological Oxygen DemandCBD - Convention on Biological DiversityCFCs - Chlorofluorocarbons

COOPs - Code of Operating PracticedB - Decibel - a unit for noise levelEAA - Environmental Audit and AssessmentEIA - Environmental Impact AssessmentEMA - Environmental Management ActEMP - Environmental Management Program (Plan)EMS - Environmental Management SystemEPP - Emergency Power ProjectESAMP - Enyironmental and Social Assessment Management PlanFZ - Factory ZoneIDA International Development AgencyIDO Industrial Diesel OilIFC - International Finance CompanyIPTL - Independent Power Tanzania LimitedISO - International Standard OrganizationISRS - Intemational Safety Rating SystemJICA - Japanese International Cooperation AgencyKIA - Kilimanjaro International AirportkV - kilo Volts

MVA - Mega Voltage AmperesMW -Mega WattsNEMC - National Environrnent Management CouncilNEP - National Environmental PolicyOCB Oil Circuit BreakerOHSMS - Occupational Health and Safety Management SystemOP - World Bank Operating PolicyPCBs - Polychlorinated biphenylsPEP - Provisional Environmnental PermitPOPs -Persistent Organic PollutantsPP - Personal Protective

ppm - Part per millionRAP - Resettlement Action PlanSHE - Safety Health and EnvironmentSIA - Social Impact AssessmentS/S - SubstationSSE - Substation EngineerT/L -Transmission lineTANESCO - Tanzania Electric Supply Company LimitedTDS - Total Dissolved SolidsTL - Team Leader

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l tH Jr Reinforcement and Upgrade of Dar es Salaanm, Kilimanjaro and Ar ha Transmissionand Distribution SystemTQM - Total Quality Managementl TRC - Technical Review CommitteeTSS - Total Suspended SolidsUDSM - University of Dar es SalaamVPO - Vice President's OfficeWB - The World Bankl WHO - World Health Organization

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Reinforcement and Upgrade of Dar e SalsbnU , Klilmanjaro and Aru ha Transtissionand Distribution Svstem

Table of Contents

CHAPTERI ....................... ......... .. . . . -....-.-.-.-.-.... ...

N INTRODUCTION ................. ... -- - ............................1

1.0 BACKGROUND ........................................................ . ..........

1.1 THEPROJECT ........ ............................ ..... ............................ 2

1.2 THE PURPOSE OF THE ENVIRONMENTAL AUDIT AssESSMENT.. ................... . ................. 4

1.3 SCOPE OF W ORK ................................................................... 4

1.4 METHODOLOGY AND APPROACH ...................................................... 4

1.4.2 Site Observations and Interview ............................................... ............................ 4

1.4.4 PCB identification methods ........................... ..... .......... 51.4.5 Findings Evaluation ........................... ............................ 5

1.5 REPORT FORMAT ............................................ ...................... 6

CHAPTER2 ................... ......... . .. ....... 7

POLICY, LEGAL AND INSTITUTIONAL FRAMEWORK ................................... -....... 7

2.1 TANZANIAN REQUIREMENTS ...................................................................... .... 7

2.1.1 The Environmental Management Act, 2004 ....................................... 72.1.1.1 Environrnental audit review ............................ ................................... ............... ......... 8

2.1.2 Water -Utilization Act (1974); amended in 1981 .................................... 82.1.3 The Land Act, 1999 (No 4) .................................. 8................2.1.4 The Village Land Act 1999 (No 5) ................................ ............. 82.1.5 The Occupation, Health and Safety Act 2003 ...................................... 82.1.6 The Energy and Water Utilities authorityAct 2001 (Act No. 11) ......................... 92.1.7 The Industrial and Consumer Chemicals (Management and Control) Act, 2003 ............................... 92.1.8 Electricity Ordinance 1957 [Cap. 131- Supp. 57J ................................... 92.1.9 Petroleum (conservation) Act, 1981 (Act No. 18- 1981) ............... .................... .......... ...... 92.1.10 National Environmental Policy (NEP 1997) ..................................... 9

2.1.11 Sectoral Policies ....................... 9.................... ........................... 92.1.11.1 National Energy Policy (2003) ........................................... .............................. 92.1.11.2 National Water Policy (2002) ..................................... ... 102.1.11.3 The National Land Policy (1996) .................................... . ............................................. 102.1.11.4 National Human Settlement Development Policy (2000) ................................. 102.1.11.5 Sustainable Industrial Developmcnt Policy - SIDP (1996 -2020) ........................... 102.1.11.7 Other Relevant Policies ............................................................................. I I1

2.2 INTERNATIONAL AGREEMENTS ON ENVIRONMENT ......................................... I.

2.3 THE WORLD BANK REQUIREMENT .................................. ................... 11

2.3.1 WB Safeguard Policies ...................... ....... ....................... I12.3.2 Pollution prevention and Abatement Handbook Guidelines ............................ 12

CHAPTER 3 ......................................... . . . -. ......... 14

SITE BASELINE INFORMATION, AUDIT FINDINGS AND THE REMEDIAL ACTION . ......... 14

3.1 MIKOCHENI 33/11KV SUBSTATION .................................................... 15

3.1.1 A4uditfindings and the required remedial actions: Mikocheni S/S ....................... IS3.2 OYSTERBAY33/1lKVSUBSTATION ................................................... 16

3.2.1 Auditfindings and the required remedial actions: Qyster Bay Substation ................ ........................ 163.3 MSASANI 33/11 KV SUBSTATION ............................................................ . ........................ 17

3.3.1 Auditfindings and the required remedial actions: Msasani Substation ........................ 173.4 ILALA 132133/11KV SUBSTATION ................................................................................... . ............ 18

3.4.1 Auditfindings and the required remedial actions: .................................. 183.5 CITY CENTRE 33/111 KV SUBSTATION .................................................................. . ............. 19

3.5.1 Auditfindings and the required remedial actions: City Centre Substation ............... ........................ 193.6 SOKOINE 33/1 1KV SUBSTATION ................................................ . ............. 20

3.6.1 Auditfindings and the required remedial actions: Sokoine Substation ..................... ........................ 2/

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Reinforcement and Upgrade of Dar es Saiaam, Kilimanjaro and Ar sha Transmissionand Distribution System3.7 FACTORY ZONE 11 3 3/1 1 KV SUBSTATION ................................................ 2 13.7.1 Auditfindings and the required remedial actions: Factory Zone !! Substation ............... 223.8 FACTORY ZONE III 132/33/11I KV SUBSTATION ............................................ 223.8.1 Auditfindings and the required remedial actions: Factory Zone III Substation ............................ 233.9 FACTORY ZONE 133/1 I KV SUBSTAnON ................................................. 243.9.1 Auditfindings and the required remedial actions: Factory Zone I Substation ................ 243.10 KuRAsINI 33/1 1 KV SUBSTATION .......................................

.......... 253.10.1 Audilfindings and the required remedial actions: Factory Zone 11 Substation ............. 26I 3.11 NJIRO 220/132/33KV SUBSTATION ..................................................... 273.11.1 Auditfindings and the required remedial actions. Njiro Substation .................... 273.12 THEMI 33/11 KV SUBSTATION ............................ ......... ............................ 283.12.1 Auditfindings and the required remedial actions: Themi Substation .................... 293.13 KILTEX 33/1 1IKV SUBSTATION ......................................

............................ 293.13.1 Auditfindings and the required remedial actions: Kiltex Substation .................... 303.14 MOUNT MERU 33/11 KV SUBSTATION ................................ ................... 303.14.1 Auditfindings and the required remedial actions: Mount Heru Substation ............... 313.15 UNGA LIMITED 66/33/1 1 KV SUBSTATION (POWER STATION) ............................................................. 323.15.1 Auditfindings and the required remedial actions. Unga Limited Substation ... ................. 323.16 KIYUNOI 132/66/33KVSUBSTATION ....................................................

. ................ 333.16. i Auditfindings and the required remedial actions: Kiyungi Substation ................... 343.17 BOMA MBUZI 33/11 KV SUSTATION ................................ ...................35

* 3.17.1 Auditfindings and the required remedial actions: 13ama Mbuzi Substation ..... ............................ 35I 3.18 TRADE SCHOOL 33/1 1KV SUBSTATION .......................................................... ............................ 363.18.1 Auditfindings and the required remedial actions: Trade School Substation ............... 6.... ........ 363.19 CHALINZE 132/33KV SUBSTATION .....................................................

373.19.1 Auditfindings and the required remedial actions: Chalinze Substation .................. 373.20 PUBLIC CONCERNS (SUBSTATION) ...... ................................................ 383.21 PRIORITISED AUDIT FIND[NOS AND RECOMMENDATIONS .................................... 38ENVHAPTER 4ONMENTAL MANAGEMENT. . ..... ....... ............. .......... 42ENVIRONMENTAL MAN.AGEMENIT PLAN

............... 4. ...... ..... 4CHAPTER S.....-.. -.............................

.49CONCLUSION AND RECOMMENDATIONS .................................. . .......................... 49BIBLIOGRAPHY ...................................................

............................ 51

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Reinforcement and Upgrade of Dar es Salamn, Kilimanjaro and Art sha Transmussionand_Distribution System

Chapter 1

Introduction

1.0 BackgroundThe demand for electric power in Tanzania has been on increase due to the g owing economicand social situation in the country. Good governance, good policies, investon ' confidence andeconomic recovery programmes have stimulated the economic growth and sc cial activities. In1986, Tanzania introduced and embarked on Economic Recovery Pro e (ERP) which

concentrated on reforming agriculture, opening up the private sectors, c regulating foodmarketing, liberalized trade and lifting foreign exchange controls. The ERP was later replaced bya three year plan called the Economic and Social Action Plan (ESAP) backed b a series of IMFinspired structural adjustment programmes. These progranmnes have resulted nto urbanizationand the growth in mining sector. The implication of these programmes to TA 1ESCO has beenthe ihcrease of a number of customers in major cities in need of electri ity connections.However, most of the infrastructure have reached their capacities and cannot all w connection ofnew customers unless they are rehabilitated. The most affected are the sub ations and theirvoltage carriage lines located in Dar es Salaam, Arusha and Moshi town centresFurther more, Tanzania's economy still faces considerable difficulties and many necessaryreforms remain to be implemented. The industrial sector being in the process o recovery, sufferfrom frequent power outages and deterioration of power quality (under volta e) caused by theageing infrastructures in spite of the rectification efforts taken so far by T NESCO and theGovernment of Tanzania. This system overload experienced in many substation and distributionnetwork needs urgent improvement in terms of new investment in distribu on systems anddevelopment of new sources of electricity if TANESCO is to continue to sc vc its customerswith quality power and connect new customers.

In Tanzania, only about 11% of the population (34million)' enjoys the elec ricity. The totalnumber of customers connected by the end of June 2005 was 570,665, m nly residential,industrial and commerce.2 The average growth of the customer base since 200 was between 6-9%. In terms of generation, the total available installed capacity is 890MW. Th sources includeTANESCO (59OMW), SONGAS (200MW), and the Independent Power Tanza ia Limited-IPTL(IOOMW). TANESCOalso imports power from Uganda for Kagera region and from Zambia forTunduma town, Sumbawanga and Mbozi districts. The total generation for tl e month of July2005 reached 307,187,363 kWh (SONGAS contributing about 31%, IPTL 180/ and TANESCOcontributing about 51%)3.

TANESCO has a nunber of substations scattered all over the country. Some s bstations are forthe stcpping-up from e.g. II kV to 220kV using 11/33/66/132/220kV convers on transformers.These are mainly used at generating source to prepare the generated power ready for' 2002 census

2 source TANESCO3 Source TANESCO generation report for the month of July 2005 and Verbal communica Jon with DirectorThermal Generation, August 2005Environnmental Audit Report - Final

Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Ar sba Transmissionand Distribution Systemtransmission purposes. There are also step-down substations which reduce the transmissionvoltage into distribution voltage, say from 220kV to I1kV. This is done thr ugh a substationhaving 220/13213311 lkV conversion transformers. In this audit study the subs tions are of stepdown transfornation ranging from 220/132/33kV to 33/1 1kV.In 2002, TANESCO in collaboration with Japanese International Cooperatio Agency (JICA)

l prepared a Master Plan to improve the power systems in major towns o Dar es Salaam,Kilimanjaro and Arusha. The current power demands for these regions are on verage 240MW,30MW and 38MW respectively.4 The Master Plan outlines areas of priority and investments

l needed to solve the frequent power outages experienced in major cities. F ther, TANESCOundertook several studies including Relief Project 2 done by NetGroup Solu ons (Pty) Ltd ofSouth Africa in 2004 and feasibility study on the Reinforcement and Upgrade f Dar es Salaam,Kilimanjaro and Arusha Transmission and Distribution system done by Lahm yer Internationalof Germany in September 2004. All these studies identified areas of pri ty and type ofinvestment needed by TANESCO to improve the transmission and distribution ystems.Based on the above-mentioned studies, TANESCO consulted various fi anciers to seekassistance in implementing different components of the Master Plan. The Wo d Bank (WB) asone of the contacted financiers showed interest in supporting TANESCO in th it respect. HenceTANESCO and the International Development Association (IDA)/World B nk are currently

l preparing a distribution rehabilitation and transmission reinforcement compor nt as part of theSongo Songo Gas Development and Power Generation Project (Credit 3569-, A). The amountunder discussion with the WB is about US$ 57 million.1.1 The ProjectThe proposed project to be owned by TANESCO and co-financed by the Wc rld Bank and the

l *Nordic Development Fund (NDF) at an estimated cost of 70m USD consists of wo components:The first component involves the rehabilitation of 18 existing substation at Oyster Bay,Mikocheni, Msasani, Factory Zone I, Factory Zone 11, City Centre, Factory 2 one III, Sokoine,

l Kurasini and Ilala in Dar es Salaamn. Others are Mount Meru, Unga Ltd., Kilte Ltd, Themi andNjiro in Arusha and Boma-Mbuzi, Trade School and Kiyungi in Kilimanjaro region. These 18substations out of all substations in Dar es Salaam, Arusha and Kilimanjaro h ve been selected

l for the rehabilitation because they are located in the areas with fast growing p wer demand andthe systems have reached the capacity limit hence they are overloaded. Furth :r there will be a

I repair and upgrade of the 11/33 kV distribution systems. The expected life cycl of the substationl is about 30 years though it may continue to provide service after that per od is over. This

rehabilitation of Distribution Facilities involves:* Supply and installation of 22 additional 15MVA, 33/11kV transform -rs to relieve thel overload in the existing substations (i.e. replacing low capacity transfor ners e.g. SMVA

with medium capacity of 15MVA transformers)* Supply and installation of about 33, 33/11kV circuit breakers and 24 11kV circuitbreakers with associated switchboards* Supply and installation of 50MVA 132/33kV transformer with a ircuit breaker at

i Kiyungi, Njiro, and Kurasini Substations

'Source TANESCO, data up to May 2005Environnmcntai Audi Repon -Final 2

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Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and A sha Transmissionand Distribution System3 Supply of materials and equipment for repair/upgrading of the distribu on systems whichmake a provision for the following: reconductoring, protection syst ns, auto-reclosersand auto load break switches, SCADA, section analysers, boosters, ligi tening protection,distribution transformers, new 33/1 IkV lines and statistical metering

Upgrading of substations means replacement of power transformers by a h gher rated powertransformer and its associated breakers. This will involve mainly upgrading of the foundations toa higher bearing capacity, which may mean also power outages of several day or weeks in someplaces if temporary measures of using mobile substations are not opted.The second component involves the construction of new 132kV transmissi n lines and new132/33kV substations as follows:

* 132kV T/L Ubungo 220/132kV SIS to Oyster Bay 33/11kV S/S (t be upgraded to132/33kV SfS). The line will pass through Samu-Nujoma Road o the 1 ft hand side up to

Mwenge then follows new Bagamoyo Road on the right hand side up t Oyster Bay S/S* 132kV T/L from Ubungo S/S to Factory Zone III (via Mandela roa to Kurasini S/S,

Mbagala S/S and Factory Zone I1 Gongo la Mboto)* 132kV line from Factory Zone It -Gongo la Mboto 33/11kV SIS to proposed new132/33kV Kinyerezi S/S to be located at Kinyerezi TANESCO plot* 132kV T/L from Moshi (Kiyungi S/S) to Arusha (Njiro S/S) and resl ective upgrade of

both substations and with new 132/33kV substation near Kilima jaro InternationalAirport (KIA)

1.1.1 Project ObjectivesThe project will achieve the following objectives:* Reducing the duration and frequency of power interruptions* Improving voltage conditions at consumers' premises* Reducing the power system losses* Improvement in marketing by facilitating the possibilities of connectin more customers

* Improvement of TANESCO image to the public (less complains from c stomers)* Attraction of more revenue for the company* The project will contribute. to the effort by the Tanzanian Governmen of improving the

livelihood of ordinary Tanzanians through the National Strategy fo the Growth andReduction of Poverty in Tanzania (MKUKUTA)

Component I of this project requires a comprehensive Environmental Audit ssessment (EAA)and component 2 requires a comprehensive Environmental Impact Assessm t (EIA and SIA)and Resettlement Action Plan (RAP). Therefore, this report presents the En ironrnental AuditAssessment findings for component I above (i.e. 18 substations in Dar es Sa aam, Arusha andKilimanjaro and one additional substation at Chalinze in Coast Region).World Bank requires that all investments comply with the World Bank Safe uard Policies andEnvironmental Guidelines as presented in the Pollution Prevention and Aba ement Handbook(1998) and EFC Environmental Guidelines. It is also a Tanzanian requireme I that all projectsshould undertake the Environmental Assessment before the implementatio . The TanzanianEnvironantat Audit Reposi * Final

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Reinforcement and Upgrade of Dar en Salaam, Kilimanjaro and Ar sba Transnissionand Distribution SystemEnvironmental Management Act (2004) section 81(1-4) stipulates that it is the obligation of theproject proponent to undertake environmental impact assessment study of the pr ject.Hence, for this study the following major guidelines and policies will be appli : Elecuric PowerTransmission and Distribution guidelines (IFC), Occupational Health & S fety (IFC), andNatural Habitat (OP 4.04) because of potential oil pollution. Additionally, nat onal requirementas reflected in various Tanzania's sectoral policies, the National Environrr nt ManagementCouncil (NEMC) Environmental Impact Assessment Guidelines (2002 ipdate) and theEnvironmental Management Act (2004).1.2 The Purpose of the Environmental Audit AssessmentThe purposes of the Envirornental Audit Assessment are:* To identify present inadequacies in environmental management, and oc upational health

and safety issues in the facilities to be rehabilitated. Of particular intere ;t are the presentpollution if any and its potential clean-up costsa * To determine the need for remedial actions necessary to bring the subj t facilities intocompliance with World Bank Safeguard Policies and* To recommend actions to be taken to improve and strength n TANESCO'senvironmental, health and safety management

1.3 Scope of WorkI ~The Environmental Audit Assessment focused only on the 18 existing substati s earmarkedforehabilitation in Dar es Salaam, Arusha and Kilimanjaro as outlined above pl s one additionalsubstation at Chalinze in Coast Region. The Audit took place in November and ecember 2004.1.4 Methodology and ApproachTo accomplish the audit assessment the following approach was applied:

1.4.1 Reviewing records and relevant documentsReviewing all available relevant in house documents including the following: the Master PlanStudy on the Power Sector for major towns in the United Republic of Tam iia; prepared byElectric Power Development Co. Ltd., Japan, September 2002, Feasibility tudy Report onReinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Amsba Tansmission andDistribution System, Prepared by Lahmneyer International October 2004 and various sectoralpolicies. We also reviewed the World Bank, (IFC) Pollution Prevention and AbatementHandbook, environmental and occupational health and safety guidelines and standards. Othersinclude EMA (2004), 2002 environmental guidelines by NEMC and water stan ards. Basing onthe selected criteria to be audited a checklist was then prepared to assess the ondition of thesubstations and facilities.

1.4.2 Site Observatlons and InterviewAll 18 substations in Dar es Salaam, Kilimanjaro and Arusha were visited for assessment and anadditional one at Chalinze. Interviews and brief meetings with relevant staff and residents wereconducted at Ilala, FZ 111, Kiyungi, Unga Limited and Njiro Substations. How ver, majority ofthese substations are remotely controlled from main substations like Ilala, Ubungo, Njiro,Environmentul Audit Report - Final

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Reinforcement and Upgrade of Dar es Salaani, Kilimanjaro and Ar shik Transndssionand Distribution SystemKiyungi and Factory Zone III. During the visit we conducted visual insp ctions and crosschecked the critical issues using the prepared checklist. The checklist identifii s issue as per thefollowing criteria as deduced from the guidelines mentioned above.* General environmental management;* Waste management practices;

* Hazardous materials management;* Groundwater and soil contamination control;* Occupational health and safety management; and* Noise management (Noise level measurements were taken in some sub tations to get an

overview of the noise levels in the substations)

1.4.3 Use of secondary dataApart from reviewing the available records, this assessment used data and labc rtory test resultsconducted in the same substations for identifying polychlorinated bipl enyls (PCB) intransformers and switchgears however, for different purposes. These assessm nts are: SituationAssessrnent and Environmental Audit, Power Sector Restructuring Project- Fin I Report Version2.0 prepared by Stone & Webster Consultants, May 2004 and Inventory of Ele trical EquipmentSuspected to Contain Polychlorinated Biphenyls (PCBs) prepared by the Vice residents OfficeJune 2004.

1.4.4 PCB identification methodsThere are several practical methods in use to deternine if the equipment (e.g. tr nsforner, switchgear or capacitor) contains PCBs. The first method is the elimination method. I i this method wehave assumed the cut off year to be 1980. Thus by checking manufacturers' re ords (nameplate)all transformers manufactured before 1980 and those having no information a assumed to bePCB suspects while all transforrners made after 1980 and have full infon iation about thedielectric fluid used (not listed in PCBs common names) are assumed to be PCB free. Afterelimination, further tests follow to ascertain whether the assumption is true or not. The methodsinclude density test, chlorine frame tcst, dexsil test kits and laboratory testing (gas ch omatography withelectron capture then comparing results against standard chromatograms for known krochlors). In thisassessment all methods mentioned above were applied except the chlorine frame test.

1.4.5 Findings EvaluationUsing field observations, site screening tests, laboratory analysis, checklist and professionaljudgmnent the audit findings were evaluated and prioritized as of high, mediun or low concem.For instance, if transformer was found to contain less than 50ppm it was classi fed as PCB free.This is the threshold level in most countries required by the law. If the equipm nt has 50ppm orabove but below 500ppm, the equipment is classified as contaminated thus ne d to be properlylabeled and controlled though it can be retained in service until the end of u efil life. Hencethere is low to medium concem about this group. If equipment is foun to have PCBsconcentration above 500ppm this is classified as pure PCB and this is of very hil concem. If theconcem is rated high it means a call for immediate attention or action.

Environmtctal Audit Rcport - Final 5

Reinforcement and Upgrade of Dar es Salant, Killimanjsro and Ar ssha Transmissionand Distribution System1.5 Report Format* This environmental audit report comprises of five chapters. Chapter one provi the introductionof the project and methodology for conducting the audit. Chapter two provides he environmentalaudit and legal framework and chapter three provides baseline informatic n and the Auditfindings. It also provides the recommended remedial action required to bring the facilities intocompliance with minimum WB requirement as stipulated in the guidelir es. Chapter four

3 provides the environmental management plan and monitoring. Chapter five provides aconclusion and recommendations in a prioritised list of actions. The report has an executivesummary, substation location maps and appendices.The audit findings are the actual observed conditions of the facilities over ll environmentalperformance with respect to the guidelines checklist. The findings de cribe the main

1 environzmental management practice weaknesses. When responses froz the facility'smanagement are available, they have been provided.

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*Environfmtagt lAudit Rspotn- Final

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Reinforcement and Upgrade of Dar es Salaanm, Kilimanjaro and Ar sha Transmissionand Distributon System .

Chapter 2

Policy, Legal and Institutional FrameworkEnvironmental management has become a global challenge and Impact Assess ent is a requisitefor every major project at local and international level. Financiers, governme ts, environmentalagencies and the public are demanding environmental responsibility of every action taken by

corporate. This is due to the fact that any development activity has the p tential to impactnegatively or positively to the environment and the society is the one, which benefit or looses.Therefore any development must be sustainable so as to provide goods and ervices for manyyears without compromising the ability of future generations to survive.One of the useful tools in ensuring that the environment is given a due c nsideration is theEnvironmental Audit and Assessment (EAA). EAA provides an opportunity o assess past and

present actions against standard believed to be the best practice in order to kn >w deficiencies in

the practices thus initiate corrective actions to remedy or improve t ic environmentalperformance.

This chapter reviews policies, legal, and guidelines, which guide actions to wh t is believed to be

environmental management best practices. In order for the project to be accept ble it has to fulfilthe Tanzanian policies and laws and at the same time must comply with the World Bankrequirements. Hence, this chapter has categorized these requirements as Tanza ian, IntemationalAgreements (of which Tanzania is a signatory) and the World Bank.

2.1 Tanzanian requirements

2.1.1 The Environmental Management Act, 2004This Act provides for legal and institutional framework for sustainabl management of

environment; outlines principles for management, impact and risk assessmen s, prevention and

control of pollution, waste management, environmental quality standards, p blic participationand enforcement; it provides basis for implementation of economic and fi ancial incentivesdesigned to influence behaviour to ensure sustainable use of natural resources and protection of

environment; it provides for implementation of the National Environnental P licy and it repeals-the National Environmental Management Act, 1983 and provides for continued existence of the

National Environment Management Council (NEMC).The proposcd project needs to recognize the Act in the sense that environrnen al management is

a duty and that it is the right of every person living in Tanzania to live in clear , safe and healthyenvironment. Under the Act, environmental liability has been imposed to m magers of bodiescorporate. If the corporate conrmits an environmental offence, the man ger is liable for

prosecution and faces fine or imprisonment.

Environmcnul Audit Rcport - Final 7

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Reinforcement gnd Upgrade of Dar e Salaam, Kilimanjaro and Ar sha Transmissionand Distribution System2.1.1.1 Environmental audit reviewThe prepared environmental audit report shall be submitted to the Council (N EMC) for reviewby the Multi-Sectoral Technical Review Committee (TRC) for the pwpose o establishing the

accuracy and coverage of key issues and providing appropriate recommendat ons for remedialmeasures.

2.1.2 Water Utilization Act (1974); amended in 1981The Act establishes a central Water Board with the authority to regulate th use of water, tocontrol water pollution, and formulating standards for effluents and strean q ality. The WaterBoard grants the discharge consents. The 1981 amendments include Stand ds for ReceivingWaters, based on their classification (i.e. Category 1, 2 or3). The Act provi es standards for

Temperature, pH, organic substances and inorganic substances, oil and grease, tc. The standardallows the maximum limit of lOppm of any discharges of oil and grease to rece ving waters. Anydischarge of oil and grease, in excess of lOppm must be treated before eing discharged.Therefore, any discharges from the planned or operating facility must abide by hese limits.

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2.1.3 The Land Act, 1999 (No 4)One of the fundamental principles of this Act is to ensure that land is used pro uctively and thatany such use complies with the principles of sustainable development. The Act also stipulatesprocedures of acquiring land from the rightful owners and the required compen ations. However,this component of the project is expected to utilize the existing land alre idy occupied byTANESCO. Nevertheless, if need to acquire more land for the upgrading of ubstations arises,then all procedures of acquiring land as stipulated in this Act must be followed.Further, the proponent should know that after the useful life of the Substatio is over the landshould be left in a state where others can use it. Hence, the projec should do thedecommissioning of the project when the project activities come to an end.2.1.4 The Village Land Act 1999 (No 5)In case the concerned land is in rural areas, the law to be used shall be the vil age Land Act of1999 known as land Act number 5. This Act provide for the management and dministration ofland in village and related matters.

2.1.5 The Occupation, Health and Safety Act 2003The Act repeals the Factories Ordinance 1950. It makes provisions for the s Lfety, health and

welfare of persons at work in factories and other places of work. It also prov des protection ofpeople other than persons at work against hazards to health and safety ari ng out of or in

connection with the activity. Therefore, health and safety is must for the emp oyer, employeesand people around the facilities.

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Reinforcement and Upgrade of Dar es Salaam, KUimanjaro and Aru oha Transmissionand Distribution System2.1.6 The Energy and Water Utilities authority Act 2001 (Act No.11)The Act establishes a Regulatory Authority in relation to energy and wate utilities and to

provide for its operation in place of former authorities and for related matter . Recognition of

this Regulatory Authority is important for this project.

2.1.7 The Industrial and Consumer Chemicals (Management and Control) Act, 2003This Act provides for the management and control of the production, importatic n, transportation,storage, dealing and disposal of chemicals. The activities and the work sites of the proposedproject may produce or store forbidden chemicals particularly PCBs norma lly found in old

transformers and switch gears. Hence appropriate management of these su stances will be

required.

2.1.8 Electricity Ordinance 1957 [Cap. 131- Supp. 571This is an-ordinance that facilitates and regulates the generation, transmissior , transformation,distribution, supply and use of electric energy for lighting and other purposes. iince this projectis about the electricity distribution, then this ordinance will be applicable in some issues.

2.1.9 Petroleum (conservation) Act, 1981 (Act No. 18 - 1981)This Act provides for regulation of the impact, transport, storage, distribution, sale and use of

petroleum products and connected matter. Substations have oil in transformers and switch gearswhich require proper management and handling.

2.1.10 National Environmental Policy (NEP 1997)The National Environmental Policy provides the framework for making func anental changesthat are needed to bring environmental considerations into the mainstreamn of de cision-making. It

also seeks to provide policy guidelines, plans and guidance to the determir ation of priorityactions, and provides for monitoring and regular review of policies, plans and pi agrammes.The policy among other environmental issues, it insists on prevention and cont Di of land, water,

vegetation and air degradation, which constitute our life support systems. It also requiresprotection of biological diversity of unique ecosystem.

2.1.11 Sectoral PoliciesThe following sectoral policies recognize the importance of environmentaI protection and

highlight needs and the obligation of any project proponent (developer) to saf -guard it so as it

continues to support our life systems. T'he policies include:2.1.11.1 National Energy Policy (2003)The energy policy of February 2003 insists on the need to consider environmi nt in its totality.Issues such as energy production (construction of electricity facilities, the r operation andEnvironmental Audit Report - Final

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Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Ar sha Transmissionand Distribution Systemmaintenance), procurement, distribution systems, and utilization should be done in anenvironmentally sound manner.

2.1.11.2 National Water Policy (2002)The policy insists on the integrated water resources management involving ll stakeholders. Itfurther emphasises that water resources shall be conserved and water po lution should beavoided. The relevancy of this policy to this audit study is to remind the pro ect proponent theneed to avoid any kind of oil spills, wastes of harmful substances or any ot :r substances thatmay cause water pollution of the source or water body of any kin during projectimplementation, operation and decommission.

2.1.11.3 The National Land Policy (1996)The policy developed with the main aim of ensuring wise use of land, it guid s land allocation,resolve conflicts and prevent degradation. The policy gives guiding principl s and mandate tolocal authority on issues related to environmental management. The relevanc of this policy tothe project is about land tenure and right of occupancy. Further the policy ives guidance onprotecting sensitive areas by not allocating such areas for social or economic d velopment.2.1.11.4 National Human Settlement Development Policy (2000)

The policy is under Ministry of Land and Human Settlements Development an I it emphasizes onthe integration of all human activity processes - residence, work, educati n, health, cultureleisure and the physical structures that support the human settlement. Hence ith good intentionof the governnent in facilitating adequate delivery of shelter and improvin development ofsustainable human settlement in the country, the supply of reliable electricity i these settlementsis vital in ensuring the quality of life.

2.1.11.5 Sustainable Industrial Development Policy - SIDP (1996 - 20 20)SIDP policy, which was developed by the Ministry of Industry and Trade, int eds to promote anenvironmentally friendly and ecologically sustainable industrial sector in Ta zania. The policyinsisted in the following, which are relevant for this project:* Environmental Inpact Assessment (EIA) and appropriate mitigat an measures are

enforced.* Promotion of Investment, which contain anti pollution programs.* The govemrnent will promote the continuous application of integra ed environmental

strategy to industrial process, products and services. This strat gy will includepropagating efficient use of raw materials and energy, elimination of xic or dangerousmaterials, as well as reduction of emissions and wastes at resources.* The govenmment will forge deliberate and mandatory devices t reactivate legalmechanisms to enable involved institutions to be more effecti e in matters ofenvironmental management.

2.1.11.6 Wildlife Policy of Tanzania (1998);The Wildlife Policy of Tanzania (1998) developed by the Ministry of Natu 1 Resources and

Tourism, provides a background on the country's wildlife resources and p tential, and rolesvarious institutions and stakeholders involved in wildlife management. Rel vant to this audit£rnvironmenutal Audit Report - Final

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Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Ar sha Transnlssionand Dbtribution Systemstudy is the obligation to protect the biodiversity. Of particular interest s conserving theendangered and threatened species of flora and fauna and their habitats.2.1.11.7 Other Relevant PoliciesThere are other relevant policies to this study, which are worth mentioning. Th se include Health

Policy particularly on the issues of occupational health; and Construction Indu try Policy (2003).All these policies emphasize the importance of project proponent to consider 11 aspects rangingfrom the welfare of the workers to other people who may be affected negative y or positively bythe project. They are also insisting on the best practice on environmental n anagement. Earlyconsideration of all aspect will make the investment to be sustainable.2.2 International agreements on environmentTanzania has also committed herself to a number of international agreemen s on environmentand development. The relevant international agreements to this environmental tudit include:* Convention on Biological Diversity (CBD), adopted in May 1992. The aim of this

convention was on developing national strategies for the conservation and sustainable use ofbiological diversity

* The Climate Change Convention adopted in June 1992 and ratified in arch 1996. Themajor aim of this convention is to combat the global warming by reducing emission of greenbouse gases

* Convention conceming Protection of Workers against Occupational Hazar is in the WorkingEnvironment due to Air pollution, Noise and Vibration, adopted in 197 . The aim of thisconvention is to ensure the safe working environment for the workersI Basel Convention on Trans-boundary Movements of Hazardous Wastes ar environmentallysound management of hazardous wastes (April 1993). The conven on provides theguidelines on hazardous waste management.* Stockholm convention on Persistcnt Organic Pollutants (POPs). The conv ntion calls for allcountries to properly manage the pollutants such as Polychlorinated bip enyls (PCBs) andadvises restrictions on the marketing, use and disposal of PCBs

2.3 The World Bank requirementThe World Bank, through the Intemational Development Agency (IDA) and the IFC hasestablished Safeguard Policies and environmental guidelines of which a lender needs to complydepending on the nature of the project, For this Environmental Audit Assessi lent the followingpolicies and guidelines may apply.

2.3.1 WB Safeguard Policies

OP 4.01: Environmental Assessment: Requires an Environmental Impact issessment for allprojects to be funded by the World Bank Group to ensure that they are envi onmentally soundand sustainable.Applicability of the policy to this projectComponent one of the projects has to do with rehabilitation of the existing facilities which in

most cases will be confined in the existing sites. These existing sites require th audit assessmenttEnvirmtentn l Audit Rqport -Final

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Reinforcement and Upgrsde of Dar es Sslaam, Kililmanjaro and Aru hs Trsnsmlsslonand Distribution Systemwhile for the new substations or construction of new transmission lines (co ponent 2 of thisproject) require the Environnmental Impact Assessment.OP 4.04: Natural Habitat: Aims to promote and support natural habi at conservation,protection, maintenance, and improved land use. It insist on precautionary ap roach to natural

resource management to ensure opportunities for environmentally sustainable d velopmentApplicability of tse policy to th is projectThis policy is applicable in the sense that it is required to control oil pollution 4 n land (soil) andwater and any behaviour that will affect natural habitat or degrade the land which can be usedfor other purposes

OP4.12: Involuntary Resettlement: Aims to minimize the involuntary resett ement whenever

possible. Resettlement Action Plan (RAP) is needed to reduce impacts to t ose who will be

displaced by the project.Applicability of the policy to this projectIt is anticipated that rehabilitation of the substations will not need extra land. owever, in casesubstation designs change and extra spaces are required, procedures for acqu ring land will beollowed including the preparation of Resettlement Action Plan that will be sub) itted to the local

authorit and the WB.

OPN 11.03: Cultural Property: requirement to protect and conserve cultural si esApplicability of the policy to this projectFor the sites to be rehabilitated, no cultural properties are expected to exist n the site as therehabilitation work will be on the already disturbed land sites. However, it sh al be consideredin case of new Substations and new transmission lines.

2.3.2 Pollution prevention and Abatement Handbook GuidelinesThe purpose of the guidelines among other things is to identify envirorunental, ealth and safety

problems and recommend cost-effective measures that could improve the envi omnental, health

and safety performance to meet the WB standards. The guidelines that have b en considered in

preparing the Environmental Audit Assessment checklist (Appendix 1) include he following:1. Electric Power: Transmission and Distribution2. Polychlorinated Biphenyls (PCBs)3. Occupational Health and Safety Guidelines4. Environmental Monitoring and5. General Environmental guidelines

These guidelines In a nutshell:o Require having in place acceptable working environment and it is the bligation of the

employer to provide that acceptable working environment, provide all n cessary personal

protective gears (PP) to employees, first aid kit, and essential welfare faci ties and enforcethe use of PP when necessary

o Require that all discharges from the facility to be treated to acceptable li nit levels before

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Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Ar sha Transmissionand Distribution System ---_-_-_-o Require to have equipment, a system or procedures in place to control pillages that may

contaminate soil, underground and surface watero Require to have a plan or a system in place to deal with emergence cases f fire, spillage or

accidents in place of work or facility to minimize the number of casualties, damage costs andenvironmental disaster

o Require to have a knowledgeable workforce to reduce health and safety ri ks of the workersand safety of equipment as well as improving the working efficiency

o Require to have habit of keeping records as a proof of compliance, for eas of reference, andin reviewing the performance when need arises

o Require a systematic phasing out PCBs and Chlorofluorocarbon co npounds (CFCs)containing equipment and in ensuring appropriate storage and disposal

Envimronnznal Audit Report - Final 13

II

I

Reinforcement and Upgrade of Dar es Saianm, Kilimanjaro and Ar sha Transmissionand Distribution SystemI.Chapter 3

Site Baseline Information, Audit Findings and the Remedial Act onsThe substations included in this Environmental audit Assessment project are lo ated as follows: 5Kinondoni Kinondoni Dlala Region Temeke Arusha imanjaroNorth South

Region Renon E onMikocheni

- Ilala FZ I Njiro KungiMsasani

City Centre Kurasini Themi Bc ma MbuziOyster Bay

Sokoine Kiltex Lxwati*FZ II Mt. Meru Tr ide School

- FZ III Unga Ltd -

* Although Lawati Substation was in the WB terms of Reference, it ws left out in this study after discussion with

Kilimanjaro Senior Engineer that the concerns are on Trade School substation and not Law iti Substation. Hence

Trade school substation replaces the Lawati substation.'It was also recommended thal Chalinze Substation be included in the project though it is outsi le the above

mentioned regions.

This Environmental Audit was conducted between 9gh November 2004 and 10 December 2004.

The audit was based on criteria stipulated below:* General environmental management;* Waste managenent practices;* Hazardous materials management;* Groundwater and soil contamination control;* Occupational health and safety management; and* Noise management (Noise level measurenents were taken in some su stations to get an

overview of the noise levels in the substations)These criteria were translated into a checklist which was used to identify issu of strength to the

subject substation or issues that need corrective actions (weakness) so as to eet the minimumrequired standard.

The approach to this audit included the site inspection, equipment and mat rial identification(PCB content transforners and switch gears), interview of personnel and re idents working in

the substations or living near the substation. Available records or documr ntation were also

verified.

Substations which have been audited using the criteria above include the follo ring:

S TANESCO has four operational regions In Dar es Salaam which are iCnondoni North Kinondoni South,

Ilala and Temeke aNl located In Dar es Salaam administrative regionEnvicvnmmpu l Audil Rcon - Final

14

Reinforcement and Upgrade of Dar es Saliam, Kilimanjaro nd Ar sha Transmissionand Distribution Systemiv. Fire fighting equipment is inadequate need to be adequately suppi ed in the requiredproportions (foan, carbon dioxide, powder, etc.) and recharged whe expire

v. The substation site will require an extra land if expansion is needed3.2 Oyster Bay 33/llkV SubstationThis substation is located in a plot at the junction of Ali Hassan Mwinyi road md Kawawa roadin Kinondoni district. On the north there is Ali Hassan Mwinyi road and c a the west of thesubstation there is Kawawa road. The eastern side is bordered by residential ouses and on thesouth an empty space. This substation is remotely controlled from Ilala and U oungo substations.The area is dominated by the noise of passing vehicles. The potential environ nental risks comefrom oil, SF6 and CFC gasses, and safety risk mainly from electric shock.The substation (see photo 2:1-3 in Appendix 2) is currently equipped u ith one 33/1 1kV,

15MVA transformer (1993) with two stand-by transformers of capac ty 5MVA eachmanufactured in 1963. The substation is overloaded and requires immediate ittention. A 33kV

line to Ilala and Mikocheni connects the substation.The proposal recommends among other things the following rehabilitation: c anging 33kV andI I kV switchboards, circuit breakers, cubicles, installation of two new 33/1 lk V, 15MVA powertransformers.

3.2.1 Audit findings and the required remedial actions: Oyster Bay Subs ationFrom the site investigation and checklist the following issues were identified:1. The substation has transformers and oil circuit breakers of 1963 and 1993. Hence by

elimination method one transformer in the substation has got no PCBs. H wever for the twotransformers of 1963 the laboratory tests showed some traces of Aroclor 254 and Aroclor1260 with concentration 405 ppm and 352ppm respectively. This result c ncludes that thesetwo transformers are PCB contaminated. Therefore, appropriate handling is required includingprevention of leakages and restriction on moving them2. The transformers are oil leaking however they are labelled and restrict I from shifting toanother place without the permission of the Vice presidents Office.3. It has few window type air condition units, which may contain dhloroflu ,rocarbons (CFCs)

particularly R12 refrigerant which is commonly used for repair work in Tam ania. However, nodisposable units were seen at the site.4. The substation has no oil containment for the installed transformers. Which eans any leakagewill not be recovered and it will go underground.5. The substation is remotely controlled from llala hence only a security guard is on the site. Theoutside noise level is averaged at 56dB during the day, which might also b influenced by thepassing vehicles on Ali Hassan and Kawawa Roads.6. The substation is earthed and has protective shields to minimize radiation nd magnetic fieldeffects

Environmental Audit Rcport - Final 16

Ii

Reinforcement and Vpgrade of Dar es Salaam, Kllimanjaro and A sha Transmissionand Distribution System7. The substation is fenced and has warning signs to prevent the ge Ieal public fromelectrocutions. However the fencing needs some repairs.8. The substation needs improvement in the following areas:i. Repair of secwuity lights, fence, broken slabs and putting danger si ns on the fence

ii. Cleanness of the substation (taking out grasses) and supply more gi avelsiii. Emergency preparedness, prevention and response plan for the sub tation needs to be

prepared and rehearsediv. Fire fighting equipment are inadequate need to be adequately su pplied in required

proportions (foam, carbon dioxide, powder)v. Handling of hazardous and non hazardous material need to be imp oved especially instorage arrangement and prevention of spillagevi. Waste handling and disposal

3.3 Msasani 33/11kV SubstationThis substation (see photo3:1-3 in Appendix 2) is located at Msasani area n the TANESCOcompound used by Dar es Salaam Rehabilitation Project. Residential houses are located some

100 - 200m from the substation.

The substation is currently equipped with one 33/11kV, 15MVA transfo er (I993). Thesubstation supplies load within the Oyster Bay and Mikocheni area. No 33k busbar system is

installed. The substation is of the t-off type connected to Oyster Bay. On the 11kV side a

container type substation was built in 1993 under the Japanese project. No expansion of the

I IlkV board is possible.

The proposal is to relief the load from this substation when the new Oyster Bay substation is

constructed. Expansion of this substation is not recommended.

3.3.1 Audit flndings and the required remedial actions: Msasani Substati nThe audit found the-following at Msasani substation:1. The sub station has transformers and oil circuit breakers of 1993 hence y the elimination

method the substation has no transforner with PCBs2. Small oil leakage was seen on the one of the Oil Circuit Breaker but has been controlled3. The substation has no any equipment which may contain chlorofluorocarboru

(CFCs)4. The substation has no transformer oil containment. However no oil leaks were seen on the

transformer5. The S/S is remotely controlled no operators on the site. The site noise level i averaged at 47dB

during the day6. The substation is carthed and has protective shields to minimize radiation X nd magnetic field

effectsEnvironmetal Audit Rcport . Final

17

Reinforcement and Upgrade of Dar es Salaam, Kilhmanjaro and A usba Transmissionand Distribution System7. The substation is well fenced and has waming signs to prevent the g neral public fromelectrocutions

8. The substation needs improvement in the following areas:i. Cleanness (taking out grasses) of the substation particularly outs de and the supplymore gravels is recommended

ii. Emergency preparedness, prevention and response plan for the su station needs to beprepared and rehearsed

iii. Fire fighting equipment are inadequate need to be adequately s pplied in requiredproportions (foarn, carbon dioxide, powder) and regular servicingiv. Handling of hazardous and non hazardous material need to be im roved especially instorage arrangement and prevention of spillage

3.4 Ilala 132/33/11kV SubstationThis substation (see photo 4:1-3 in Appendix 2) is located at Mchikichi i area behind theTanzania Breweries Limited factory. Outside the substation there are some re idential houses inwest and east. On the northern side there is Mchikichini primary school. The substation isenclosed by a brick wall separating the substation and other activities.The substation is currently equipped with three 132/33kV, 45MVA transfo mers and three of33/1 1kV, 15MVA transformers all manufactured in 1987. The 33/11 kV trar sforrners are fullyoverloaded.

The proposal was to extend two bays with all equipment and accessories t allow the 132kVsecond circuit from Ubungo and also to allow extension of 132kV line from llg la to Kurasini.

3.4.1 Audit rndings anod the required remedial actions;The audit identified the following issues and provides the remedial action on icle 8.1. The sub station has transformers and oil circuit breakers of 1987. Hence by the elimination

method (transformers manufactured after 1980 are assurned to be PCB fre while those madebefore 1980 are assumed to be PCB suspect), the substation has no transfor er or switch gearwith PCBs

2. No oil leakage was observed3. It has few window type air condition units, which may contain chloroflu rocarbons (CFCs)

particularly R12 refrigerant which is commonly used in Tanzania. Howe ver, no disposableunits were seen at the site

4. The substation has no oil containment for the installed transformers. No oil eaks were seen onthe site

EnvirnmenLal Audit Report - Final 18

I Reinforcement and Upgrade of Dar es Salazn Kilimanjaro and Aru ha Transmisslonand Distribution System

5. Air condition units maintain workplace air quality and inside the building here is no noise.

The outside noise level is averaged 55dB during the day, which also might be nfluenced by the

nearby brewery industry.6. The substation is earthed and has protective shields to minimize radiation a Id magnetic field

effects7. The substation is well fenced and has warning signs to prevent the gen .ral public from

electrocutions8. The substation needs improvement in the following areas:i. Regular training of all personnel in safety & safety procedures, work procedures,

accident and accident prevention and health risksii. Availing more reference materials of which employees could refer t or improve theirknowledge

iii. Emergency preparedness, prevention and response plan needs to e prepared andrehearsed

iv. First aid kit need to be funished with important drugs and necessary equipmentv. Fire fighting equipment is inadequate and need to be adequately sul plied in required

proportions (foam, carbon dioxide, powder) to be located appropri tely. Also theseequipment needs to be checked and serviced regularlyvi. Handling of hazardous and non hazardous material need to be impn ved especially instorage arrangement and prevention of spillagevii. Waste handling and disposal (required to have a designated areas fo waste collection

and rightful way of disposing them)3.5 City Centre 33/11kV SubstationThis substation (see photo 5 in Appendix 2) is located at Kisutu area nea by the National

Library and other office buildings. It is enclosed by brick wall on all sides. The substation is

remotely controlled from Ilala and from Ubungo substationsThe substation is currently equipped with one 33/1lkV, 15MVA transformer 1979) with one

stand-by transformer of capacity 15MVA manufactured in 1979. The subst tion was partly

damaged by fire in 2001 and refurbishment of the existing indoor switchgea r and protection

system is on going.

It is proposed to rebuild the substation as an indoor 33/1 IkV substation with tvo new 33/1 IkV,

1 5MVA power transformers. The proposal also recommends among other things changing 33kV

and 11 kV indoor switchboards, circuit breakers, various cubicles (transfom er, bus coupler,

feeder, etc.) and a building to house the above items and protection panel.

3.5.1 Audit findings and the required remedial actions: City Centre Subst tionThe audit found the following:

Environmcnugi Audit Report - Final |9

Reinforcement and Upgrade of Dar es Salsam, Kilimanjaro and Aru ha Transnissionand Distribution System1. The sub station has transformers and oil circuit breakers of 1979, which ake substation aPCBs suspect. However, the laboratory results performed in April 2004 did n t detect any traceof PCB compounds. Hence the substation is PCB free.2. Oil leakage seemed to be there and the major cause was the mishan ling during themaintenance

3. The substation is remotely controlled from Ilala substation. Hence no equipm nt was seen thatmay have contained chlorofluorocarbons

(CFCs) particularly R12 reffi erant which iscommonly used in Tanzania.

4. The substation has no oil containment thus oil leaks may contaminate undergr und water5. The substation is earthed and has protective shields to minimize radiation a id magnetic field

effects6. The substation is fenced though it needs some repairs7. The substation needs improvement in the following areas:. i. Repair of security lights

ii. Emergency preparedness, prevention and response plan needs to be prepared andrehearsed

iii. Eliminate features that put safety in danger by repairing or rep acing broken ormissing slabs on cable trenchesiv. Supply of adequate fire fighting equipment in right proportiot s (foam, carbondioxide, powder) and ensure that they are serviced regularlyv. Handling of hazardous and non hazardous material need to be impn ved especially instorage arrangement and prevention of oil spillagevi. The substation needs the yard cleanness and appropriate waste han/ ling and disposalpractices

vii. The toilet used by the security guards and people working on the sit need Repairs3.6 Sokoine 33/11kV SubstationThis substation (see photo 6 in Appendix 2) is located near the National Ins irance Company

investment house and the headquarters of Bank of Tanzania (BOT) along the S oine Drive. The

substation is enclosed by the brick wall. It is remotely controlled from Ilala.The substation is currently equipped with one 33/11kV, 15MVA transfor Ler (1993). This

substation is currently heavily loaded. The substation is made up of an outdoo 33kV part with

one incoming line bay and one transformer bay. The incoming feeder is conn gcted by a single

core underground cable, XLPE 300mm2 copper of 300m to the dead end struct are of the line to

Ilala (ACSR 150mm 2). The containerized llkV substation built in 1993 cannc be extended by

additional feeders.

It is suggested that due to the entrance limitation, which makes it difficult to ex and, no action to

this substation be undertaken unless the underground cable ring is realized. He ce some load in

the area should be supplied through the additional capacity proposed at City Centre and new

Railway substations.Environmintal Audit Reporl - Final

20

CO%~ ~ Reinforcement and Upgrade of Dar es Salam, ICl0lmanjaro and Ar sha Transmissionand Distribution System

3.6.1 Audit findings and the required remedial actions: Sokoine Substati nThe audit found the following:1. The substation has a transforner and oil circuit breakers of 1993 hence y the elimination

method the substation is PCB free2. No oil leakage was seen on the transformer or on the breakers3. The substation is an outdoor type and remote controlled substation, henc no equipment issuspected to contain chlorofluorocarbons (CFCs) used in air-conditioning uni :s

4. The substation has transformner oil containrnent thus no leakage will be all wed to go to theunderground water

5. The substation is earthed and shield protected to minimize radiation and mag Letic field effects6. The substation is fenced and has waning signs to restrict access thus prevent the general public

from electrocutions or electric shock.7. The substation needs improvement in the following areas:i. Repair of security lightsii. Emergency preparedness, prevention and response plan needs to be prepared and

rehearsediii. Supply of adequate fire fighting equipment in right proportio Is (foam, carbon

dioxide, powder)iv. The substation needs appropriate waste handling and disposal practi esv. The substation toilet needs repairs to offer a convenient place for t le security guards

and people working on the site to go

3.7 Factory Zone II33/llkV SubstationThis substation (seen on photo 7 Appendix 2) is located at Gongolamboto i ustrial area. Thesubstation is between Namera textile mills and the proposed Dar es Salaam Ci y slaughter house(abattoir).

The substafion is currently equipped with one 33/11 kV, SMVA transformer of 1967. The indoorI IkV switchboard is-overloaded and the protection system is in poor condition.It is proposed that the substation be rebuilt to the existing site as an indoor 3 /1 lkV substation

with two 33/11lkV 15MVA power transformers. The proposal also recomm nds among otherthings changing 33kV and 11 IkV indoor switchboards, circuit breakers, various cubicles(transformer, bus coupler, feeder, etc.) and a building to house the above ite ns and protectionpanels.

Following the changes of 132kV transmission routes in Dar es Salaam, this ubstation will beupgraded to 132/33kV to allow connection with the line from Mbagala, Fac ory Zone II andKinyerezi substations. In that case extra piece of land will be required.

Environmcntal Audit Rtport -Final 21

I

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Reinforcement and Upgrade or Dar es Salami, Klilmanjaro and Ariu sha Transmissionand Distribution System3.7.1 Audit rindings and the required remedial actions: Factory Zone II S bstationThe audit found the following:I. The substation has a transformer of 1967, which make the substation a PCB uspect. However,

the study by the Vice President's Office in August 2004 concluded the su station has PCBscompounds below 50ppm based on the density detection method as the wei ght of the oil anddensity of the oil were provided by transformer manufacturer. No laboral ory analysis wasperformned. Hence the substation is concluded by the study as PCB free.2. The transformer has traces of oil leaks presumably due to overloading an oil mishandlingduring maintenance activities

3. It has no equipment suspected to contain chlorofluorocarbons (CFCs) particularly R12refrigerant which is commonly used as air conditioning refrigerant in Tanzani4. The substation transformer has no oil leakage containment, which means le, ks will soak intothe soil and then to surface and underground water5. Although it is remotely controlled, there are security guards at site who r quire convenientshade for rain and sun and toilet facility. The substation is located in indus al area where asubstation noise will not exceed 70dB as shown in measured substation6. The substation is earthed to minimnize radiation and magnetic field effects7. The substation fencing is in very bad condition. It needs repair and posti g of the danger

warning signs to restrict access to the substation thus prevent the gen ral public fromelectrocutions

8. The substation needs improvement in the following areas:i. Repair of security lights and fencingii. Emergency preparedness, prevention and response plan needs to be prepared andrehearsed

iii. Eliminate features that put safety in danger by repairing or re lacing broken ormissing slabs on cable trenchesiv. Drainage system of the substation. It was reported by the secur ty guard that thesubstation is normally flooded whenever there is heavy down pourv. Adequate fire fighting equipment in right proportions (foam, carbon dioxide, powder)must be supplied and checked regularlyvi. Handling of hazardous and non hazardous material need to be impr ved especially instorage, arrangement and prevention of oil spillagevii. The substation needs cleanness, extra gravels on the site and ppropriate wastehandling and disposal practices

viii, There is need to construct a security guard kiosk (shade) and toilet facility forconvenience of the guards on the site

3.8 Factory Zone III 132/33/llkV SubstationThis substation (seen on photo 8 Appendix 2) is located at Kipawa along Nye cre road close tothe Dar es Salaam Intemational Airport. It is in the vicinity of Nyerere road i dustrial zone. It

Environrnental Audit Report - Final 22

Reinforcement and Upgrade ofDar es Sslaam, Kilimanjaro and Ar sha Transndssionand Distribution Systemreceives 132kV from Ubungo main grid centre. The substation has one buil ng which housesoffices, battery room and control room.

The substation has 132kV, 33kV, and IIKV voltage levels transformation. T e 132kV line bayfrom Ubungo has two 132/33, 45MVA transformer (1999) bays. The 33kV part is the outdoortype with one 33/11kV, ISMVA transformer with several line bays. On the llkV side acontainer type substation was built in 1987 under the Japanese project. No expansion of theI1 kV board is possible.

It is recommended to extend 132kV line bay to accommodate the new 132kV ne from Ilala S/Sto FZ III via Kurasini, Mbagala and Yombo. The bay will contain all nec ssary equipment(circuit breakers, current transformers, capacitive voltage transformers, arresto s, etc.). Also it isrecommended to add a full 33kV transformer bay, 33/llkV 15MVA tr nsformer, Otherrehabilitation will include major service of the existing transformer-and swi chgears, oil type33kV circuit breaker shall be replaced and adding two 33kV outgoing feeder b ys.

3.8.1 Audit findings and the required remedial actions: Factory Zone III ubstationThe audit found the following:1. The substation has transformers and oil circuit breakers of 1987 and 1 99 hence by the

elimination method the substation has no transformer or circuit breaker wit PCB. Hence thesubstation is PCB free

2. Oil leakage was seen on CUB - 3 oil circuit breaker3. It has few window type air condition units, which may contain chlorofluo arbons (CFCs)particularly R12 which is the common and cheap air conditioning rcfill refri erant in Tanzania.However, no disposable units were seen at the site4. The substation has no transformer oil containment dikes hence in case of spi age accident soil,surface and underground water will be contaminated. New installation mu t be contained toprevent oil spills. However, no oil leaks were seen on the transforrners5. Air conditioning units maintain workplace air quality and the noise inside th building is belowthe limit. The outside noise level is averaged 50dB during the day, the lev I which has beeninfluenced by the nearby biscuits factory (20rn away) and passing vehicles o the Nycrere roadlocated 50rn away

6. The substation is earthed and has protective shields to mininize radiation and magnetic fieldeffects

7. The substation is well fenced and has warning signs to restrict access by unauthorized peoplethus prevent the general public from electrocutions8. The substation needs improvement in the following areas:i. Regular training of all personnel in safety & safety procedures, ork procedures,

accident and accident prevention and health risksEnvironment2l Audit Report - Final 23

. ;Reiforcmmea *and Upgrade of Dar es Salagiua, KilimBJaro and Aru a T,rnndssonii. Availing more reference materials of which employees could refer or improve theirl ~knowledgel

Emergency preparedness, prevention and response plan needs to e prepared andI- rehearsedl

iv. First aid kit need to be furnished with important drugs and necessary uipmentv. Fire fighting equipment are inadequate need to be adequately sup lied in requiredlproportions

(foarn, carbon dioxide, powder) and ensure a regular che bksvi. Handling of hazardous and non hazardous material need to be impr ved especially instorage, arrangernent and prevention of spillagevii. Repair of security lights, indoor lights and window air condition nits to improvel working condition of the Substationviii. The substation needs cleanness especially in removing grass the yard and

appropriate waste handling and disposal practices

3.9 Factory Zone I33/11WVSubstafionFactory Zone I substation is located at Buguruni along the Mandera Express ay close to thetraffic lights at junction of Nyerere road and Mandela express way. This subst ion is located inan industrial area. It has two buildings housing the control unit. The subst tion is remotelycontrolled,

yThe substation is currently equipped with one 33/1 IkV, 15MVA transformer o 1993. Though itis now disconnected after developing an internal fault. The one in operation ( se) now with thesame capacity was manufactured in 1969. It is proposed that the substation be rebuilt to theexisting site as an indoor 33/1 1kV substation with two 33/1 1kV 15MVA power ransformers.The proposal also reconunends the substation to be equipped with 33kV d 11 kV indoorswitchboards, circuit breakers, various cubicles (transforner, bus coupler, feder, etc.) and abuilding to house the above items and protection panels.

3.9.1 Audit findings and the required remedial actions: Factory Zone I S bstationThe audit found the following:1. The 1969 transformrn makes the substation, as a PCB suspect while the o of 1993 is non-PCB. However the results of laboratory analysis conducted in April 2004 h e shown that thetransfonner of 1969 has some traces of Aroclor 1260 and Aroclor 1254 P¢ compounds ofless than Ippm. Therefore, the result concludes that the substation is PC free in spite ofhaving a 1969 transformer.

2. Small oil leakage was seen on one of the transformer

Envj,nrry.t Audit Rep,on -Final 2

Reinforcement and Upgrade of Dar es Salsam, Kilimanjaro and A usha Transmissionand Distribution System-3. The substation building has two window type air condition units, 9 hich may containchlorofluorocarbons (CFCs) particularly R12 refrigerant which is co on and cheap ACrefrigerant in Tanzania. However, no disposable units were seen at the site4. The substation has no transforner oil containment which means any leak ge goes to the soiland eventually to surface and underground water5. The substation is remotely controlled hence only a security guard is on the site. The workingconditions need to be improved for the guards by providing security gua d kiosk and toiletfacility. The noise level is normnal though influenced by the moving vehicl s on Mandela roadand foundry workshop adjacent to the substation.6. The substation is earthed shield protected to minimize radiation and magneti field effects

7. The substation is fenced and has waming signs to restrict access to the sub tation thus preventthe general public from electrocutions

8. The substation needs improvement in the following areas:i. Repair of security lights and window ACii. Emergency preparedness, prevention and response plan needs t be prepared andrehearsediii. Elimination of features that put safety in danger by repairing or rplacing broken or

missing slabs on cable trenchesiv. Supply of adequate fire fighting equipment in right proporti ns (foam, carbondioxide, powder)v. Handling of hazardous and non hazardous material need to be imp roved especially in

storage, arrangement and prevention of oil spillagevi. The substation needs cleanness and appropriate waste handling an disposal practicesvii. Construction of the toilet and security guard kiosk to be used by he security guardsand people working on the site during Repairs and maintenance wc rk3.10 Kurasini 33/llkV SubstationKurasini substation (seen in photo 10:1-3 In Appendix 2) is located off Mand zla express way atKurasini adjacent to the Scandinavian express warehouse. It is remotely contro led from Ilala andUbungo> substations. It has one small house with indoor controls. This sub tation is basically.located in an area designed for warehouses, therefore only few residential h uses belonging toTAZARA staff are behind the substation. As this substation is among th se which will beupgraded to 132/33kV, extra land will be required. This means about 3 ho ses belonging toTAZARA staff need to be relocated. Land acquisition procedure shall be foll wed so as acquirethe extra piece of land. The Social hrpact Assessment and Resettlement olicy Framework(RPF) documents for Dar es Salaarn address those issues.Kurasini substation is currently a 33/1lkV substation. It is at present equipped with one33/1 IkV, 15MVA transformner of 1979 with two oil circuit breakers 36kV, 6 0A, 12.5kA datedaEvironmcnul Audit Report - Final

25

Reinforcement and Upgrade of Dar es Sala;m, Kilimanjaro and Ar sha Transaussionmad Distribution System1967 of South Wales made, Three 33kV CB were replaced in 2003. The indoor 11kV

switchboard and the monitoring and control devices are installed in the buildin .The proposal is to extend the substation by an outdoor 132kV switchyard con isting of one line

bay for connecting the new Ubungo - Kurasini Line, one line bay for conne ting the new line

Kurasini - Mbagala - Gongolamboto - FZ III, one 132/33kV 50MVA transfo; mer bay. Further

it is proposed to build an indoor 33 and llkV substation with one-33/l1k r 15MVA powertransformers. Other things include improving the llkV cable connection, changing circuitbreakers (with SF6 or Vacuum type), various components in protection and mo itoring systems.

3.10.1 Audit findings and the required remedial actions: Factory Zone II ubstationThe audit found the following:I1. The substation has transformers and oil circuit breakers of 1979 and 1967 respectively. By

elimination method the substation is classified as PCB suspect. However, sin e TANESCO hasa tendency of doing refilling of new oil to all transformers in substations fror i time to time andthat no pure PCB has been found in TANESCO transformers it may be assumed that thesubstation is also fiee from PCB in most cases (i.e. below 50ppm) even tho gh no laboratorytests has been conducted on this substation.2. No oil leakage was observed

3. It has no equipment that may contain chlorofluorocarbons (CFCs) particular y R12 refrigerant

which is commonly found in AC and refrigerators in Tanzania4. The substation has no transformer oil containment which means any leakaE e goes to the soiland eventually to surface and underground water5. The substation is remotely controlled and the average ambient noise on the s vitchyard is 48dBduring the day. Few residential houses are located about 20-40m from the ubstation and theMandela road is also located some 50m from the substation6. The substation is earthed and has protective shields to minimize radiation a ad magnetic field

effects7. The substation is fenced though needs some repair work to improve the naccessibility by

unauthorized people to prevent them from electrocutions8. The substation needs improvement in the following areas:i. Repair of security lightsii. Emergency preparedness, prevention and response plan needs to be prepared and

rehearsediii. Elimination of features that put safety in danger by repairing or re placing broken or

missing slabs on cable trenchesiv. Supply of adequate fire fighting equipment in right proportio s (foam, carbondioxide, powder) and ensuring the regular checkups

Environmntat Audit Rcport - Final 26

Reinforcement and Upgrade of Dar es Salasm, Kilimanjaro and A usha Transmissionand Distribution Systemv. Handling of hazardous and non hazardous material need to be i nproved especiallyin storage, arrangement and prevention of oil spillagevi. The substation needs cleanness and appropriate waste han ling and disposal

practicesvii. Need for constructing a security guard kiosk and a toilet to be used by the security

guards and people working on the site during Repairs and maint nance work3.11 Njiro 220/132/33kV SubstationThis substation (seen on photo 11: 1-2 in Appendix2) is located at Njiro hills n Arusha town. Itreceives energy from Singida through the 22OkV transmission line and om Kiyungi andPangani Hydro Systems through the 132kV transmission line. Residential ho ses are located asfar as 150-300m from the substation.

The substation has 220kV, 132kV, and 33kV voltage levels bus bars an 220/132kV and132/33kV transformers. The 220kV connects with the national grid from Sing da and the 132kVconnects to the hydropower stations of the Pangani Hydro Systems through aame and Kiyungisubstations. The substation has two 132/33, 20MVA transformers manufact red in 1981 whilethose of 220/132 20MVA were manufactured in 1996. The transforme s are overloadedespecially at peak hours and the oil temperature reaches more than 90 °C. transformers areof cooling type ONAN and the extension will convert to ONAF thus increasin the rated load to30MVA each.

The proposal is to exchange the two 132/33kV, 20MVA transfonners with tw 132/33, 50MVAtransformers or install additional 132/33kV, SOMVA transformer and related transformer bayequipment to support the existing two transformers. Also it is proposed to in4 tall 132kV bay toconnect the new 132kV line from Kiyungi S/S via Kilimanjaro Intemational . irport (KIA). Fordistribution system two additional 33kV line bays are being proposed to fee New Kiltex andnew Njiro B substations.

3.11.1 Audit flndings and the required remedial actions: Njiro SubstationThe audit found the following:1. The substation has transformers of 1981 and 1996 and switch gears use SFO gas hence by theelimination method the substation is PCBs free2. Small oil leakage was seen one of 132/33kV transformers3. It has few window type air condition units, which may contain chloroflu ocarbons (CFCs)

particularly R12 refrigerant which is commonly used in Tanzania. Howe er, no disposableunits were seen at the site4. The substation has oil containment for newly installed transforners (220/ 32) but lacks thecontainment for the old installations (132/33kV transformers)Environmctnta Audit Rcpor - Final

27

eloReinforcement and Upgrnde of Dar es Sala amnl, Kilimanjaro and A usha Transmlssionand Distribution System5. Air condition units maintain workplace air quality and there is no noise iz side building. No

noise measurement were taken at this substation, it is assumed that it is no ifferent from othersubstations. Residential houses are located about I OOm - ISOm from the s bstation fence andno noise complains have been reported up to date6. The substation is earthed and has protective shields to minimize radiation md magnetic fieldeffects

7. The substation is well fenced and has warning signs to prevent the g neral public fromelectrocutions

8. The substation needs improvement in the following areas:i. Regular training of all personnel in safety & safety procedures, work procedures,accident and accident prevention and health risksii. Availing more reference materials of which employees could refer or improve theirknowledge

iii. Emergency preparedness, prevention and response plan needs t be prepared andrehearsed

iv. First aid kit need to be furnished with important drugs and necessar K equipmentv. Fire fighting equipment are inadequate need to be adequately su pplied in requiredproportions (foam, carbon dioxide, powder)vi. Handling of hazardous and non hazardous material need to be imp ved especially instorage arrangement and prevention of spillagevii. The substation needs appropriate waste handling and disposal pract cesviii. The substation needs to be supplied with one unit portable water (water dispensingunit)

ix. The substation need to have in place a habit of investigating work elated injuries, illhealth, diseases and accident and keeping them in record

3.12 Themi 33/11kV SubstationThemi substation (seen on pboto 12 Appendix 2) is located at Themi indus al area in Arushatown. The controls are housed in the building and transforners are locat d outdoors. Thesubstation is supplying power to the fast growing residential and industrial wr;.The substation is currently equipped with one 33/1I kV, 5MVA transformer o 1988. The 33kVsubstation is of outdoor type with two line bays. The I I kV switchboard is of in oor type.IUnder the project it is proposed to add a full 33kV transformer bay, 33/Ik , 15MVA powertransformers. It is suggested that the upgrade should include rebuilding the ex sting I x SMVAtransformner bay to a complete transforner bay and replacing existing SMVA transformer withnew 15MVA transformer. Among other things, it is suggested to change t e whole II kVswitchboard and transformer panels.

EnvironmenUt Audit eport - Final 28

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mmwwm��

Reinforcement and Upgrade of Dar es Salast, Kilimanjaro and Ar sha Transmlssionand Distribution Syslem3.12.1 Audit flndings and the required remedial actions: Themi SubstatioThe audit found the following:I. The substation has transformers and oil circuit breakers of 1988. This me by elimination

method the substation can be classified as PCB free substation2. Small oil leakage was observed on one of the circuit breaker3. The substation is remotely controlled from Njiro substation. Hence no equipt aent was seen thatmay have contained chlorofluorocarbons

(CFCs) particularly R12 ref igerant which iscommonly applied in Tanzania.4. Thbe substation has no oil contairunent thus oil leaks may contaminate underg ound water

5. The substation is earthed to minimize radiation and magnetic field effects6. The substation is fenced to restrict access to the substation by unauthorized p ople7. The substation needs remedial actions in the following areas:i. Repair of security lights, put more danger signsii. Emergency preparedness, prevention and response plan needs to be prepared and

rehearsediii. Eliminate features that put safety in danger by repairing or rel lacing broken or

Imissing slabs on cable trenchesiv. Supply of adequate fire fighting equipment in right proportio s (foam, carbondioxide, powder) and ensure regular checks to find out whether the work or not

v. Handling of hazardous and non hazardous material need to be inpr )ved especially instorage arrangement and prevention of oil spillage since there s no transforrnercontainment

vi. The substation needs yard cleanness and appropriate waste hand ing and disposalpractices

vii. The substation need to have a toilet to be used by the security 8uards and peopleworking on the site

3.13 Kiltex 33/11kV SubstationKiltex substation (seen on photo 13:1-2 in Appendix 2) is located on Kilirnajar Textile (Kiltex)

compound close to Tanzania Breweries Limited Arusha plant. It is in the indusb al zone.The substation is currently equipped with one 33/1lkV, 5MVA transfortne r of 1966. The

substation is connected by one 33kV line from Unga Limited substation. It h s old equipment

that though operational needs modification and replacement.It is suggested to relieve the substation by either using the existing 33kV fro Unga Limited

dedicated to Kiltex only via I IkV bypass or build a new I IkV line from Ung Limited to pick

up existing llkV feeders then demolish the substation. Therefore, the new site for the new

substation (New Kiltex) should be identified. If the final decision is to find the new site for this

substation, then normal land acquisition procedures shall be followed includi g preparation of

EIA of the site and Resettlement Action Plan (RAP) if relocation of people will e involved.£nvironmntnal Audit Repon -Final

29

ReInforcement and Upgrade of Dares Salanni, Kllimanjaro and A usha Transmissionand Distributlon System3.13.1 Audit findings and the required remedial actions: Kiltex SubstatioThe audit found the following:I. The substation has transformners and oil circuit breakers of 1966 hence by cu off point (1980) it

is classified as a PCB suspect. However, from the laboratory concentration tests results of the61 samples taken from different substations, all suspected cases except twc were found to bePCB free6, then in extreme probability the substation may also be PCB fre or having trancesof less than 50ppm

2. Small oil leakage was observed3. No any equipment was found to contain chlorofluorocarbons (CFCs) particularly R12

refrigerant which is still widely used in Tanzania4. The substation has no oil containsent for the installed transformer. This me; as any oil spillagewill contaminate the soil and eventually surface and underground water5. The substation is located between the Kiltex and brewery industries. It is remotely controlledwith only a security guard on the site6. The substation is earlhed

7. The substation fenced but the fence need repair and warning signs to prevent the general publicfrom electrocutions

8. The substation needs improvement in the following areas:i. Repair of security lights, put more danger signsii. The substation need more gravelsiii. Emergency preparedness, prevention and response plan needs to be prepared andrehearsed

iv. Eliminate features that put safety in danger by repairing or rep lacing broken ormissing slabs on cable trenches

v. Supply of adequate fire fighting equipment in right proportio s (foam, carbondioxide, powder)

vi. Handling of hazardous and non hazardous material need to be impr Wved especially instorage, arrangement and prevention of oil spillage since there is transfonner oilleakage contaiunent

vii. The substation need to have a security guard shade and a toilet t be used by thesecurity guards and people working on the siteviii. The substation needs cleanmess and appropriate waste handling and isposal practices

3.14 Mount Meru 33/llkV SubstationThis substation (seen on photo 14:1-2 in Appendix 2) is located along the Mo hi-Arusha road,not far from the Novel Tel Mount Meru hotel. It has one building that house bat 2ries and controlunits. It is remotely controlled from Njiro substation. It drains water into a strew K nearby.

6 The 2 cases found to be PCB oontamtnated had cDncentration between 350ppm and 40 ppm of Arodor

1254 and Arodor 1260 PCB comunds and are located In Dar es Salaam (KVNorth) and lImanjaro regions

Environimenai Audit Repon - Final 30

Reinforcement and Upgrade of Dar es Salaani, Kilimanjaro and A usha Transmissionand Distribution SystemThe substation is currently equipped with two 33/11kV, SMVA transforme manufactured in1991. The 33/1 1kV transformers were supplied by EB National Industries of I lorway. The 1 1kVswitchboard is of indoor type.

The pzroposal is to upgrade the 33kV feeding line Njiro-Mount Meru to a doub e circuit. Hcnce itwill require rebuilding the existing I x 5MVA transformer bay to a comple transformer bayand replacing existing 5MVA transformer by a new 15SMVA transforrner. The rehabilitation willalso involve upgrading of Circuit Breakers and protection devices. Otherw se rebuilding thewhole substation to the existing site as an indoor 33/1 1kV substation with one 3/11 kV, 15MVApower with additional one as the load increases.

3.14.1 Audit findings and the required remedial actions: Mount Meru Su stationThe audit found the following:1. The substation has transformers of 1991 and SF6 circuit breakers hence clas ified as PCB. freesubstation2. No oil leakage was seen on any equipment3. It has two window type air condition units, which may contain chlorofluo ocarbons (CFCs)particularly R12 refrigerant which is widely used in Tanzania for repair w*rk. However, nodisposable units were seen at the site

4. The substation has oil containment for all installed transformers5. The substation is remotely controlled and only a security guard is availab at the site. Thesubstation is quiet except for the noise of passing vehicles6. The substation is earthed and has protective shields to minimize radiation a id magnetic fieldeffects7. The substation fenced though it needs some repair warning signs to prevent he general publicfrom electrocutions8. The substation needs remedial actions in the following areas:i. Repair of security lights, put more danger signsii. The substation need more gravels

iii. Emergency preparedness, prevention and response plan needs to be prepared andrehearsediv. ImLprove drainage by cleaning the storm water trenchesv. Supply of adequate fire fighting equipment in right proportio (foamL, carbondioxide, powder) and ensuring regular checks to be sure that they Te in good orderready for use

vi. Handling of hazardous and non hazardous material need to be impr ved especially instorage, arrangement and prevention of oil spillagevii. The substation need to have a security guard shade and a toilet t be used by thesecurity guards and people working on the site

EnviranmcnWl Audit Report - Final 3 1

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Reinforcement and Upgrade of Dar es Salasn, Kllimanjaro and A usha Troasnsmssionand Distribution Systemviii. The substation needs yard cleanness and appropriate waste han ling and disposalpractices

3.15 Unga Limited 66/33/11kV Substation (Power Station)This substation (seen on photo 15:1-2 in Appendix 2) is located at Unga L mited area in theArusha old power station compound. The substation receives energy from K yungi through the66kV transmission line. It supplies energy to the industrial and residential a as. According tothe consultant the equipment has reached its useful life and upgrading or reha ilitation makes nosense.

The substation has 66kV, 33kV and 1 IkV voltage levels bus bars. Afler rec iving 66KV fromKiyungi it steps down to 33kV through the 66/33kV transformer. The subs ation is currentlyequipped with two 33/1 1kV, 5MVA transformers erected in 1966. There are ther five off linetransformners laying at the compound.

It is therefore proposed to rebuild the substation adjacent to the, existing ite as an indobr33/1 IkV substation with one 33/1 IkV 15MVA power transformer with provi ion of adding thesecond one. It is further proposed to add one transformer bay, two 33kV feeder bays andprovision of spare feeders.

3.15.1 Audit findings and the required remedial actions: Unga Limited Su stationThe audit found the following:1. The substation has transformers and oil circuit breakers of 1966 making the substation a PCB

suspect. However the laboratory test conducted for two transformers in Ma h 2004 by Stoneand Webster did not find any traces of PCB compounds in the sanples. This oncludes that theexisting transformer oil has been changed several times and the substation is CB free

2. Oil leakage was seen almost on every transfonner and breakers3. No equipment was observed which may contain chlorofluorocarbons (CFCs particularly RI 2refrigerant commonly in AC repair work in Tanzania4. The substation has no oil containment for the installed transformers. This s any spillagewill contaminate the soil and eventually surface and ground water5. The control room for the switchboard operators is not convenient for the wor ing staff. In spiteof having ventilation, the machine hall exposes operators to cold during cold times and lots ofmosquitoes in other times. It has been very difficult to control the insects bec e the hall is toobig. The machine hall needs to be comparthnentalized to have sufficient and onvenient roomswhich can be easily controlled temperature-wise and insects-wise.6. Noise wise the substation is quiet and does not need any ear protection against noise.

7. The substation is earthed and has protective shields to minimize radiation a d magnctic fieldeffects

8. The substation fenced but needs repair and warning signs to prevent the ge eral public fromelectrocutions

Environental Audit Rcport - Final 32

m

Reinforcenmnt and Upgrade of Dxr es Salsan, KlIlmanjaro and Ar isba Transnissionand Distribution System9. The substation area has a lot of scraps laying in the machine hall (control roc m) and outside themachine building. Also some old scavenged machines are still fixed in the n achine hall. Thesescraps need to be cleared up and appropriately disposed of10. The substation needs improvement in the following areas:i. Regular training of all personnel in safety & safety procedures, work procedures,accident and accident prevention and health risksii. Availing more reference materials of which employees could refer o or improve theirknowledgeiii. Emergency preparedness, prevention and response plan needs t be prepared andrehearsediv. First aid kit need to be fimnished with important drugs and necessar r equipmentv. Fire fighting equipment are inadequate need to be adequately su plied in requiredproportions (foam, carbon dioxide, powder) and ensure a regular hecks to be surethat they are ready for action

vi. Handling of hazardous and non hazardous material need to be impr ved especially instorage, arrangement and prevention of oil spillage since there is l to transformer oilleakage containmentvii. Repair of security lights is needed

viii. The substation need more gravelsix. The substation's toilet condition needs to be improved for the conve ience of workersin the substationx. The substation needs a compound cleanness and appropriate we ste handling anddisposal practices. The machine parts scraps need to be cleared at I he substation andappropriately disposed

3.16 Kiyungi 132/66/33kV SubstationKiyungi substation (seen on photo 16 In Appendix 2) is located about 8km to the South of theMoshi town centre on the left bank of the Kikafu River next to the large s gar cane estate.Kuyungi S/S is the main station in Moshi area connected to the 132kV system t y the 132kV linefrom same-Hale and from Njiro S/S.

The S/station has one 132/66kV, 15MVA transformer of 1974 and one 13 /33kV, 2OMVAtransformer of 1989. Also there are two 66/33kV, 5MVA transformers ar, one 66/33kV,I OMVA transformer of 1967. Different vector group are connected to the seco dary side of the132/66kV main transformer. Apart from SF6 circuit breakers, still there are s me oil breakersmainly for 66kV and 33kV circuits dating back from 1967 to 1984.The proposal is to exchange 132/33kV, 20MVA transformers by a 132/33, 50M VA transformer.It is also proposed to install 132kV bay to connect the new 132kV line from Kiy mgi to Njiro S/Svia Kilimanjaro International Airport (KIA). The 33kV outdoor substation shal be rehabilitatedand extended or rebuild as a new indoor substation. For distribution system two additional 33kVEnvironmrntal Audit Report - Final 33

II

; Reinforcemcnt and Upgrade of Dar es Salaam, Kilimanjaro and A usha Transmissionand Distribution Systemline bays are being proposed to feed Machame and Boma Mbuzi substation and refurbish theexisting 33kV feeder bays.

3.16.1 Audit findings and the required remedial actions: Kiyuugi Substat onThe audit found the following:1. In this substation, the PCB concerns are the transformers dating back l 1974 and 1967.

Transforners dating above 1980 are considered non-PCB transformers. It s believed that theretro filling, which has been going on in the substation, may have neutralizec the concentration.The PCB study conducted by the Stone & Webster found out that out of f )ur samples taken,three were found to contain traces of Aroclor 1254 and Aroclor 1260 c mpounds of PCBranging from o.Sppm to 205ppm. These values indicate that the oil has tra :es of PCB, hencePCB contaminated. The conclusion made from the sample result is hat all suspectedtransformners dating back before 1980 are contaminated though in different c ncentration.2. Oil leakage was seen on TI and T2 breakers

3. The substation has few window type air condition units, whi h may containchlorofluorocarbons (CFCs) particularly RI 2 refrigerant which is cornmonl used in Tanzaniain AC repair work. However, no disposable units were seen at the site3 4. The substation has oil containment for newly installed transformners but lac s the containmnentfor the old installation. No oil leaks were seen on the transformers thoug . The site has no

designated storage room for the oils instead it uses the regional stores5. The workroom is air conditioned to maintain workplace air quality and the oom is quiet. Theoutside noise level is below 50dB during the day. No complains has s far reported by

3 residents over noise levels6. The substation is earthed and has protective shields to minimize radiation and magnetic field

effects

7. The substation is well fenced and has warning signs to prevent the ge eral public fromelectrocutions

8. The substation needs improvement in the following areas:i. Regular training of all personnel in safety & safety procedures, ork procedures,accident and accident prevention and health risksii. Availing more reference materials of which employees could refer to or improve theirknowledgel iii. Emergency preparedness, prevention and response plan needs to be prepared and

rehearsedl

iv. First aid kit need to be furnished with important drugs and necessar equipmentv. Fire fighting equipment are inadequate need to be adequately suy plied in requiredproportions (foam, carbon dioxide, powder)

Environmntal Audit Rcport -Final 34

* S I e I I a

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Reinforcement and Upgrade of Dar es Salaam, KIlimanjare and Ar sha Transmissionand Distribution Systemvi. Handling of hazardous and non hazardous material need to be impi oved especially instorage, arrangement and prevention of spillage since there some ti nsforner withoutoil leakage containmentvii. Avail portable water (dispensing unit)viii. Maintain security lights, put more danger signsix. The substation needs cleanness and appropriate waste handling and isposal practicesx. The substation needs more gravelsxi. Transformers found contarninated by PCBs exceeding SOppm nee I special attentionto prevent leakage. When their useful lives come to an end the should be safelydisposed of

3.17 Boma Mbuzi 33/11kV SubstationThis substation (seen on photo 17:1-2 in Appendix 2) is located along the TP road. There aresome residential houses nearby substation.

The substation is currently equipped with 2 33/1lkV, 5MVA transfonner; of 1980. Thesubstation is located north of Kiyungi and connected to the 33kV line Kiyungi - Boma Mbuzi -Rombo. It is suggested to rebuild the substation to the new 33/1 1kV standard It is designed tocover the load in the surrounding areas and be the starting point for the 33kV I ne to Rombo andI I kV feeders to the surrounding areas.It is proposed that the substation be an indoor 33/11kV equipped with one 3/11kV ISMVApower transformer with a provision to add a second transformer. It further prop Dsed to add a full33kV transformer bay, two 33kV feeder bays, one equipped spare bay an space for fouradditional feeders.

3.17.1 Audit findings and the required remedial actions: Boma Mbuzi Sub tationThe audit found the following:I. The sub station has transformers and oil circuit breakers of 1980. This mea is by eliminationmethod the substation can be classified as PCB free substation2. No oil leakage was observed neither on the circuit breaker nor transfonners3. The substation is remotely controlled from Kiyungi substation. Hence no eq ipment that may

have contained chlorofluorocarbons (CFCs) was seen on the site particularl R12 refrigerantwhich is commonly applied in Tanzania.4. The substation has no oil containment thus oil leaks may contauinate undergr und water

5. The substation is earthed to minimize radiation and magnetic field effects6. The substation is fenced to restrict access to the substation by unauthorized p -ople however, itneeds repair

7. The substation needs improvement in the following areas:i. Repair of security lights, put more danger signs

Environnmmtnu Audit Rcport - Final 35

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I

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Reinforcement and Upgrade ofDar es Salaam, Kilmanjaro and A usha Transnissionand Distribution Systemii. Emergency preparedness, prevention and response plan needs be prepared andrehearsediii. Eliminate features that put safety in danger by repairing or r placing broken ormissing slabs on cable trenches and improve the drainage systemiv. Supply of adequate fire fighting equipment in right proporti ns (foam, carbondioxide, powder) and ensure regular checks to be sure that they ar in order ready forusev. Handling of hazardous and non hazardous material need to be im roved especially instorage arrangement and prevention of oil spillage since there is no transformercontainment

vi. The substation needs cleanness and appropriate waste handling an disposal practicesvii. The substation needs to have security guard shade and a toilet to be used by thesecurity guards and people working on the site

3.18 Trade School 33/11kV SubstationThis substation (seen on photo 18:1-2 in Appendix 2) is located off Moshi-A asha road near thejunction to Bonite Bottlers Limited. It seemed to have switch board & control oom building andfencing rehabilitated recently.

The substation is currently equipped with one 33/1 1kV, SMVA transformer of 1975 and one33/11 IkV IMVA of 1983. According to the technical consultant the substati n has reached itsuseful life and needs to be rebuilt.

It is proposed to rebuild the substation as an indoor 33/1 1kV substation ith one 33/11kV15MVA power transformer with a provision of adding a second transfo ner. It is furtherproposed to add a full 33kV transforner bay, three 33kV feeder bays, one equ ped spare feederbay and space for three additional feeders.

3.18.1 Audit flndings and the required remedial actions: Trade School Su stationThe audit found the following:1. The sub station has transformers and oil circuit breakers of 1983 and 1975. This makes thesubstation a PCB suspect on one transformer. As general observation the ubstation may bePCB free or contaminated based on the studies made in March 2004 by Sto e & Webster andJuly 2004 by Vice President's Office

2. Oil leakage was observed on the transforners which were off the circuit th t are waiting thedisposal3. The substation is remotely controlled from Kiyungi substation. Hence no eq ipment was seenthat may have contained chlorofluorocarbons (CFCs) particularly R12 re gerant whch isconmonly applied in Tanzania4. The substation has no oil containment thus any oil leaks will contaminate s il and eventuallysurface and underground water

Environnmntal Audit Rcport - Final 36

Reinforcement and Upgrade of Dar es Salsant, Kilimanjaro and Ar shn Transmissionand Distribution System

5. The substation is earthed to minimize radiation and magnetic field effects6. The substation is fenced to restrict access to the substation by unauthorized p ople7. The substation needs improvement in the following areas:

i. Erect security lights and put more danger signsii. Supply of adequate fire fighting equipment in right proporti ns (foam, carbon

dioxide, powder) and ensure a regular checks to be sure that they are in order readyfor use

iii. Handling of hazardous and non hazardous material need to be imp oved especially instorage, arrangement and prevention of oil spillage since there is no transformercontaisrnent

iv. The substation needs cleanness and appropriate waste handling and disposal practicesv. The substation needs to have a security guard shade and a toilet to be used by the

security guards and people working on the sitevi. For further expansion an extra land will be required

3.19 Chalinze 132/33kV SubstationThis substation is located at Chalinze on the left hand side of the Dar - M rogoro road. Thesubstation has two transformers which are not working due to some malfuncti ning. One is rated132/33kV; IOMVA was manufactured in 1962 and the other is 132/33kV; SMN A also of 1962.

It is proposed to upgrade the substation by installing two new power transform rs in the range ofIOMVA together with switchgears. Other tasks will include changing th circuit breakers,current transforrmers, protection and control devices, supporting structures, add ng surge arrestorson all line feeders. Also the civil works will cover the upgrade of the internal nd external fence,substation drainage system and the building.

3.19.1 Audit flndings and the required remedial actions: Chalinze Substat onThe audit found the following:1. The sub station has transformers and oil circuit breakers of 1962. Hence by e limination method

(i.e. transfornners and switchgears mnade after 1980 are classified as PCB fre ) the substation is-PCB suspect. However the weight of the oil is 25,800 British pounds (11,72 .3 kg) and volumeof the oil is 2,990 British gallons (13,593 litres), which means the densit of the liquid oil(11,727.3 kg/13,593 Its = 0.86 kg/Its3) is less than the density of water (no e: density of PCBoil is heavier than water i.e. Ikg/Its3)

2. There was an oil leakage in one tmnsfonner3. It has three (3) window air conditioning units which may contain chloroflu rocarbons (CFCs)

particularly RI 2 refrigerant which is conmnonly used in Tanzania for repair Works4. The substation has no transformer oil containment to prevent oil from cont aninating the soil

and ground water in case of spillage. Spare oil is stored in the above grourd tank which alsohas no any containment apart from gravels

Environmiental Audit RXport - Final 37

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Reinrorcement and Upgrade of Dar es Salami, Kilimanjaro and At usba Transmissionand Distribution System

5. The substation noises come from the passing vehicles which is hardly heal d when you are inthe control room. Hence it is not dangerous to the workers

6. The substation is fenced and has waming signs to prevent the ge eral public fromelectrocutions

7. The substation has poor drainage which needs to be improved8. The substation needs improvement in the following areas:

i. Improvement in general cleanness of the substation and removal f scrapsii. Emergency preparedness, prevention and response plan needs t be prepared and

rehearsed. A sumrnary of important items of the plan need to be anged on the wallfor the reference of everyone

iii. A toilet needs some repairs to be in a standard condition and a s urity guard kioskis also needed. In addition, broken or missing cable trench slabs n ed to be replaced

iv. Fire fighting equipment is inadequate need to be adequately suppl ed in the requiredproportions (foam, carbon dioxide, powder, etc.) and recharged w en expire

v. Personal protective equipment such as helmets need to be supplievi. Training of personnel is needed. One person attended a course 20 years ago but

others have not attended any coursevii. Improvement in waste handling

viii. The substation needs more gravelsix. Work procedures and safety guidelines need to be available in a k iown language to3 substation operators

3.20 Public Concerns (Substation)The major concem of the public regarding the substations was a he th risk due toelectromagnetic effects. Although there is no proof yet of the effect here in 'anzania, peopleraised their fear based on the information available in the Intemet. Th World HealthOrganization (WHO) guidelines however, suggest that the level should not c xceed 5000V/m.There were no complains or concems about the noise levels around the substa ions. Up to nowno any complaints have been received or reported to Substation authorities du ng the course ofthe study.

Note: TANESCO shall perform a laboratory analysis of the soil samples under the transforrnerssuspected of PCBs in the year 2006 budget. When the fund becomes available a id the laboratorycapable of delivering the required analysis locally is found the soil sarnples shal be taken for theanalysis.

3.21 Prioritised Audit Findings and RecommendationsBelow are the prioritised audit findings and reconunendations. These facilities rill comply withthe World Bank minimum standard requirement after correction of the observed weaknesses andshortcomings in the following areas in the order of high concems- high pri rity and lowerconcem- lower priority:

High concern - High priorityEnvironmental Audit Repon -Final 3 8

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)-,;i~r C40Reinforcement and Upgrade of Dar es Salbam, IUllmatn3sro and Arus ha Transrmission

and Distribution System

1. The envirornmental management and auditing is centralized at TANESCO H ad Office but is

implemented on site by the responsible regions or plants. TANESCO sh uld strengthten

environmental nmaniagement both at Head Office Environmental U rit and at the

implementing Regions or plants

2. Waste management and handling was also seen to be a problem in most su stations. Pieces

of solid wastes and scraps had no specific and designated area for collect Dn and eventual

disposal. Facilities (substations) should designate special areas (po nts) for waste

coUection and collect all unwanted scraps for a safe disposal. Wastes o substation site

such as pieces of cables and other wastes could have special bins

3. Almost all of the transformners in use in the audited substations owned by T NESCO can be

classified as non-PCB. This is because among the samples sent for the labo atory tests from

the audited areas, PCB was not detected or was below 50ppm. In one su tation traces of

PCB of less than 500ppm cut off point compounds were detected in transf ers (i.e. some

transformers are PCB contaminated). This might be of concern to the World ank. However,

the Vice Presidents Office (VPO) has labelled all these transformers a d they are not

allowed to be moved from where they located without the permission from the VPO office.

As these identified transformers are waiting for the National Strategic P an to eliminate

POPs TANESCO should ensure that they are not moved from wber they are and

substation engineers should ensure that there Is no leakage to the s il or water. In

addition there should be appropriate oil handling at all times.

4. In some substations, some of the old transformers dumped at substatio sites have oil

leakages, which contaminate the soil. TANESCO (Regional Offices) sho ld collect these

transformers and dispose them or store them in appropriate designed area that contains or

prevent the oil leakage to the soiL For all new transformer installations transformer oil

containments should be considered

5. Fire fighting equipment is inadequate in right proportions (foam, CO2 , pow er). TANESCO

should provide adequate fire fighting equipment in a right proportion foam, CO2 and

powder) tofight anyfire types in the substations

6. Enviromnental Management Plan and Monitoring of the substations is ab nt. TANESCO

should implement the prepared EMP and provide resources estimated at ast USD 10,500

annuallyfor monitoring plan.

7. Some of the cable trench slabs are broken or missing thus causing a safety ssks at night and

in case of emergency. TANESCO Regional Offices should plan the budget and urgently

replace all lost or broken lids and slabs

8. First aid kit is not equipped and lack essential drugs. Substation engineers n collaboration

with Regional Offices should reequip the First aid kits as required

9. Some of the substations have their fences damaged, security lights not w rking and their

danger signs missing or wom out. TANESCO should ensure that dam ged fences are

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Reinforcement and Upgrade of Dar es Salaam, Kilmanjaro and Ar sha Transmissionand_Ditribution System _

repaired, security ligh ts work again and all danger signs are replaced to j Prevent and warnthe public ofpotential danger as they approach thlefences

10. There is no clear identification of who has been assigned responsibility of t iking care for theenvironmental matter of the substations. There is a need to assign r sponsibility to asubstation enginreer wpho lhas to report performance in monthly report

Medium Concern - Medium priority

11. Except for Njiro, Kiyungi, Ilala, and FZ III, which have askari kiosks and ilets majority ofthe substations, have no such facilities. Security guards have got neither shade nor toiletsmaking their work difficult and dangerous in some cases such as rain s ason or at night.TANESCO is required to provide such facilities at the workplace for th convenience ofworkforce. It is reconomended thgat security guard kiosks and toilets shou d be constructedfor those, whicl don 't have, and for those such as Sokoine city centre and Oyster Bay,which have the kiosks but toilets are out of order, should be restored and faintained

12. Working procedures and instructions are missing. TANESCO and subs ration Engineersshould prepare work procedure manuals and instructions and make thei X available to allsubstation workers

13. Emergency preparedness, prevention and response plan was seen to e lacking in allsubstations audited in case of fire, major accident or major oil spills. Although somesubstations had radio calls and telephone lines no clear line of communi ation in case ofemergency was seen. TANESCO needs to prepare an emergency respons c plan. The planshould be frequently practiced (hold regular drill to check whether the Ian performs asintended) and each employee should know all the information flow in case of theemergency. Informationflow charts should be posted at a visible place

14. Although training has been taking place in TANESCO, trainings specific illy designed forsubstation engineers, technicians and operators have been scarce and li ited to very fewindividuals. TANESCO (Head office which coordinates employeesr trainings incooperation witl regional offices) needs to organise regular courses (tail r made trainingprograms to suit different cadres of substation employees and others) .su h as training onwork procedures, health and safety matters, hazardous material handin P and emergencypreparedness and response

15. Oil spill is not a big problem in many substations. However, improveme t in oil handlingduring maintenance is required to all employees working in the substa ions. Substationengineer and maintenance supervisor should ensure oil handlers improve the oU handlingto prevent oil spillage during filling up of Oil Circuit Breakers (OCBs) nd transformersor during retro filling and filtering the oJI and all oil leaks from t ansformers andswitchgears are contained

16. TANESCO has so far no formnalized Environmental Management System (EMS) though ithas a unit, which deals with environmental matters. The Major bottleneck to undertake theenvironmental programs is lack of budget. TANESCO h as to develop and EMS suitable toEnvironmengal Audit Repon - Final 40

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Reinforcement and Upgrade of Dares Saiaam, Kilimanjaro and Aru ha Transmissionand Distribution System

its activities or adopt ISO 14000 standard in order to inmprove its environmentalmanagement perforntance. In addition fund for implementing nmanagem nt plans shouldbe made available

17. Public Concern: the major concern of the public was a health risk due to electromagneticeffect. No noise complains or concerns were reported during the survey. To NESCO shouldmeasure the radiatio,n and control the level to the WHO acceptable rangi which is below5000 V/m

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Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Aru sha Transmissionand Distribution System

Chapter 4Environmental Management Plan

Construction and operation of the substation may have various impacts to he environment.Environmental Assessment as a management tool could be used to identify t impacts beforethe construction of a substation. However, the audit assessment found no rec s showing thatthere was any envirornmental impact assessment for the substations. This may e due to the factthat majority of these substations were constructed more than 20 years ago wh EIA was givenlittle attention. The audit study has identified the environmental impacts that a e likely to occurin the construction and operation of the substation. The significance of these impacts may bereduced if mitigation measures and monitoring are put in place. This ch qpter provides asummary of impacts, mitigation measures and monitoring plan.

In order to ensure that there is a system to track compliance with the WB an( Govermnent ofTanzania policies; Laws and guidelines, TANESCO have to commit itself aId ensure that itestablishes the Environmental Management System (EMS). The advantages of having the EMSat TANESCO include: having people who are responsible for ensurinn environmentalmanagement, having a systematic way of tracking the environmental problem and addressingthem in all aspects of company activities, having proper records and assignm nt of budget toenvironmental programs.

The project document for the EMS establishment within TANESCO is appended.

Table 4.1: Summary of Environmental Impacts and Proposed Mitigatior Measures

Impacts Mitigation Measures Accountability ( r MonitoringResponsible FrequencyInstitution

1. Waste generation(rehabilitation and operationphases)Oil spillage from leaking . Contain all transforners andtransformers and switchgears and switchgear oil leaks and construct TANESCO HQ. ndfrom oil mnishandling in the beams (Sumnps) under the Regional Officessubstations could contaminate transformers to hold oil leakagessoil, surface and underground until remedial measures are takenwater risking ecosystem and to prevent oil spillage to thesurrounding community ground

Refuse from office comnprising of . Designate special refise and waste TANESCO Regi nalpapers, plastic bags and non colection points (bins) and Officesdurable solids can litter the contract with authorized waste Wastesurroundings collection conpanies or authorities collection

(Municipals) for right disposal monthlyTANESCO HQ. nd

Wire pieces, metal scraps, * Metal craps should be sold to scrap Regional Officesporcelain glass materials scraps buyers and any other wastescan be safety hazard to worker collected for safe disposaland the conmnunityEnvirnmcntal Audit Report - Final 42

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Impacts Mitigation Measures Accountability ir MonitoringResponsible FrequencyInstitution

2. Water Pollution (Operationphase)Oil spillage during maintenance * Improve oil handling practices andand oil leaks from transformers prevent oil leaks from seeping to TANESCO HQ. nd During theand oil circuit breakers can pollute the soil Regional Office naintenancesurface and underground water

3. Noise pollution(Rehabilitation and operationphases)Excessive noise may cause * Noise levels should be monitored TANESCO HQ. nddisturbance and discomfort to the to ensure that they are within the Regional Offices Annuallyconununity surrounding the World Bank guidelines, i.e. 70dBsubstation and mnay also cause in industrial setting and 45dB inhearing impairmnent in extreme residential areas along thecases substation boundaries4. OCCupational Health andSafety (Rehabilitation andoperation phases)There is potential risks of work * Train the employees on work TANESCO HQ/related injuries, accidents, procedures, health and safety and Regional Offtces Dailyelectrocution and contamination provide the manuals Substationwith hazardous materials Supervisors/

* Provide employees with personal Engineerprotective gears

* Provide the first aid kits to every TANESCO HQ. ndsubstation Regional Offices

* Keep records of accidens and Substation supen isorreview the work procedures Annually

* Ensure that the personal protective Substation super sorgears are applied as required

* Enclose the S/S to restrict access toall areas potential to electric TANESCO HQ.shocks and high voltage. Entrance Regional Offices ndshould be with special permiission S/S anagemnentto only well informed and awarepeople of the potential risks andhow to avoid

* Emnployer to provide a safe TANESCOworking environmnent Annually

* Employer should provide welfare TANESCOI Regi nalfacilities such as toilets, drinking Offices/and washing water and otherhygienic requirements

5. Oil leakage (Rehabilitation -Environmental Audit Rcport - Final 43

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Impacts Mitigation Measures Accountability r MonitoringResponsible FrequencyInstitution

and operation phases)Oil leakage can cause water and * TransforTner should have retainingsoil contamination affecting walls to prevent spilled oil to TANESCO/ Re ional Duringlivelihood of the surrounding contamninate the soil, surface and Offices/ Substat n installationcommunity and the effect on flora underground water Supervisors/ of newand fauna Engineer transformers

* Maintenance technicians and otheremployees working in the S/S managemensubstation should handle oil (engineer and Duringproperly during maintenance and supervisor) maintenanceduring transfornner and switchgearsrefills

* Leaking transformers and TANESCO HQ.switchgears should be maintained Regional Office andto prevent further leaks S/S management

6. Emergencies (Rehabilitationand operation phases)Fire * TANESCO should provideFaulty electrical system appropriate and adequate fire TANESCO HQ. nd Annuallytransformers overload and other extinguishers for all types of fires Regional Officeshuman errors may cause firewhich can destroy property and * Train the employees on how to usecause loss of life the extinguishers and type to be TANESCO HQ. nd

used for each type of fire. Also Regional Officesrehearse to check if emnployees canrespond effectively in actual fireemergencies

* Provide fire safety mnanuals if TANESCO HQ. ndpossible to the language known to Regional Officesevery employee

Accidents * Establish clear line of TANESCO HQ. dAccidents mnay occur at any time communication of all parties Regional Officescausing injury, death or concerned (Police /ttoapitalst Fienvironmental damnage. and Rescue dea : t) Anmually

* Prepare an energency plan andrehearse to ensure that the planworks as intended TANESCO (Safe Y

department)* Prepare emergency plan manuals

and emergency procedures7. Electrocution (Rehabilitationand operation phases)Substations are place where * Enclose all substations to restrictnornally there are high voltages, access to unauthorized people TANESCO HQ. a ndwhich kill instantly by just a Regional Officessingle touch. This place nmay be * Put warning signs to alert alldangerous to the public and members of the public over thecommunity living nearby potential dangers of touching the I lIEnvironmental Audit Report - Final 44

Reinforcement and Upgrade of Dar es Salaam, Killmanjaro and Aru ha Transmissionand Distribution System

Impacts Mitigation Measures Accountability )r MonitoringResponsible FrequencyInstitution

fence or breaking inside the fence

* People working on the site duringthe rehabilitation work must beaware of the potential dangerswhile working in the substationand appropriate work proceduresmust be strictly followed andenforced

8. Sewage (Rehabilitation andoperation phases)Workers on the substationsgenerate sewer wastes. Hence * TANESCO and contractor should TANESCO HQ. nd Quarterlyinappropriate disposal of sewage, ensure that good-sanitary Regional Officewhich has pathogens responsible conditions are provided to thefor diseases such as diarrhoca, workforce in the substations. Indysentery, cholera, etc., can result addition appropriate disposal of theto such deceases to the workers sewer wastes is done by approvedthemselves and the community person in accordance with thearound town, municipal or city regulations9. Need for extra land(Rehabilitation phase)Need for the extra piece of land Utilize the existing land whenever TANESCO HQ. and Duringfor substation expansion may lead possible based on available technology the selected desi n planningto relocation of people in some and cost. contractorssubstations

Acquire the new land following the TANESCO HQ., Before theland acquisition procedures Ministry of Land irplemental(compensation and prepartion of and Human ion of theresettlement action plan - RAP) Settlement project

Development,Regional Offices ndaffected people

Decomrissioning stagePolluted land * Land which has been polluted must

be cleaned so as to retum it to its TANESCO HQ ad When theoriginal state to allow other land regional offices useful life ofuses tbe

substation* All contaminated soil must be becomes to

treated and disposed of or safely an end.stored to prevent further pollution.(note that soil with PCBs needspecial treatment)

* If the land is to remnain abandonedthen it must be re-vegetated

Wastes * All solid wastes at the site are to beremoved from the site for safe When thedisposal (these include old useful life ofbatteries, transformer windings and thecasing, insulator mnaterials, etc.) - substation

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Impacts Mitigation Measures Accountabilit or MonitoringResponsible Frequency[nstitution

Liquid wastes such as transformer becomes tooil must be emptied from the an end.transformers re-used at other sitesif it is good or otherwise send it tospecialized practitioners for safedestruction. Alternatively store itsafely while waiting for the furtherdecisions to be made.

TANESCO shall commit itself to ensure that the above mitigation measure are fully fundedthrough its operational budgets

Table 4.2: Proposed Environmental and Social Monitoring Plan (ESM ) for theConstruction and Operation of the Substations

Impact/ Issue Monitoring Action Frequency/ Responsib IndicativeTime Frame Institution costs

I_ I In USDRebabilitation and OperationAir Quality (Dust * Monitoring of nuisance of dust Daily during Contractor/nuisance) during site preparation for new construction TANESCO S/S 500

transformer foundations and supervisioninstallation

Noise resulting from * Monitoring of noise levels in dB Soon after Contractor/ 500overloaded (A) to ensure compliance with WB rehabilitation TANESCOtransformers and guidelines after any major facility work andduring rehabilitation maintenance or installationwork Annual check TANESCO HQ 1,000

up for and NEMCcomplianee

Water Pollution and * Monitor transformer and Daily and Contractor/ 500soil contamnination switchgear oil storage, oil spills, during the TANESCO

leakage and any oil rnishandlings rnaintenance

* Check environmental awareness of Annually TANESCO Q 1.000substation enployees to ensure that and NEMCthey abide by the principles ofenvironmental protection

* Take water and soil samples forlaboratory testing (specifically for Annually TANESCO Q 1,000substation close to the water and NEMCbodies) to check the compliances - -_ _

Waste Management * Monitor collection and remwval of Contractor/all wastes at the sites and dispose Monthly TANESCO 500them appropriately Regional O ices

or S/S super risor

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Impact/ Issue Monitoring Action Frequency/ Responsib IndicativeTime Frame Institution costs

-_ In USDHealth and Safety of * Monitor the providence and use of Daily andWorkers personal protective gears annual Contractor uring 500

checkups the constru tion* Monitor the use of personal and TANE CO/

protective gears, work procedures Daily and Substationand injury reporting rnechanism annual supervisors

checkupsI Monitor implementation ofworkers health and safety Annually TANESCO HQ 2,000procedure, First Aid Kit and NEMC duringmanagement and training program the annual

checkups* Monitor and review occupational

injury and illness reporting and Annuallyresponse to injury or accidents(injury and accident investigationprogram)

* Monitor and review emergency Annuallyresponse Plan performance

Compliance with * Monitor compliance of allLaws, regulations applicable permits and guidelines. Annually TANESCO Q., 2,000and guidelines Regional O ices

* Monitor and maintain lines of and NEMCcommunication with all relevantgovernment institutions, agencieson issues of environment, wateruse, health and safety, fire,accidents, etc.

Education and * Monitor Power Station TANESCOTraining staff training program to verify

compliance with substation Annually TANESCO Q., 1,500training requirements (work Regional off cesprocedures, safety issues, and NEMCemergency preparedness, healthrisks, environmental awarerness,reporting, working in confiaedspaces, etc.)

DecommissioningLand * Monitor that the land is returmed to TANESCO I [Q.,

its original state that would allow Regional O ces,other land uses End of NEMC and

operation Municipal 3,000* Monitor that all contaminated soil phase Authorities

is removed and replaced with agood soil (note that soil with PCBsneed special treatment byspecialized process)

* Monitor re-vegetation of the landEnvironmntal Audit Repon - Final 47

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Impact/ Issue Monitoring Action Frequency/ Responsi le IndicativeTime Frame institutio costs

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _In U S DWastes * Monitor that all solid wastes from TANESCI HQ.,

the site arc removed and ensure End of Regional frices, 2,000that they are safely and operation Deconuni ionappropriately disposed of (these phase Engineer, EMCinclude old batteries, transformer and Munic palwindings and casing, insulator Authoritiematerials, etc.)

* Monitor that all liquid wastes suchas transfonrer oil are removedfrom the site for safely storage ortreatment. Good oil can be re-usedin another site. . -

A total estimated cost for implementing this ESMP is USD 11,000 annuall and USD 5,000during the decommissioning process. This amount of money shall be m de available byTANESCO. The costs are for the monitoring exercise staff from TANE CO head -office,Regional offices and National Environmental Management Council (NEMC) xperts, transport,laboratory and monitoring equipments. NEMC is included in the monito ng phase as anindependent body with a given authority to monitor environmental compliance and according tothe conditions of the environmental license.

TANESCO is committed to follow the country's policies and continue to c mmunicate withrelevant sectors and ministries to ensure that environment is protected and he Ith and safety ofworkers and people around our facilities is guaranteed.

TANESCO shall prepare monitoring reports regularly and submit the sam to the relevantauthority as require by EMA (2004).

TANESCO shall provide environmental education to its staff of all levels to ens re environrnentsat work places are protected.

TANESCO shall maintain the line of communication to all people with any co cerns (social orenvironrnental) and complaints about our facilities.

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Chapter 5

Conclusion and Recommendations

The overall conclusion is that majority of the substations meet the Worl Bank minimumrequirement with only few minor corrections. The remedial costs are to be co ered in Regionalrepair and maintenance budgets. It is proposed that Regional offices review the document tounderstand the shortcomings of the substations in their area and workout the ac ual budgets to beapproved by the regional administration.

It is the responsibility of TANESCO Regional Offices of which these substations fall in the areaof their jurisdiction to ensure that they do corrective measures so as to fully comply with theWorld Bank minimum requirement. TANESCO Head Office shall provide as sstance whenevernecessary to the regional offices.

1. TANESCO should strengthen environmental management both Head OfficeEnvironmental Unit and at the implementing Regions or plants

2. Since TANESCO has so far no formalized Environmental Management ystem (EMS) inspite of having an environmental unit, which deals with environmenta1 matters. ThenTANESCO has to develop an EMS suitable to its activities or adopt ISO 4000 standard inorder to improve its environmental management performance. In ad ition, fund forimplementing management plans should be made available

3. Although training has been taking place in TANESCO, trainings specific ly designed forsubstation engineers, technicians and operators have been scarce and l ited to very fewindividuals. TANESCO (Head office which coordinates employees' trainin ;s in cooperationwith regional offices) needs to organise regular courses (tailor made train ng programs) tosuit different cadres of substation employees and others. such as training n ay include workprocedures, health and safety matters, hazardous material handling and emergencypreparedness and response

4. Since it was observed that no clear identificatiorr of who has been assigned rcsponsibility oftaking care for the environmental matters of the substations. Therefore, su station engineersor supervisors should be assigned also such a responsibility and rluired to reportperformance in monthly reports

5. TANESCO needs to prepare an emergency response plan in the event of fir , major accidentor major oil spills. All audited substations didn't have the plan. Workers nec to rehearse andunderstand the inforrnation flow in case of the emergency so as to check vhether the planworks as intended. Information flow charts should also be posted at a visible place

6. Waste management need to be improved in all the substations as this mas soen to be aproblem in most substations. Substation management should designate spec al areas (points)

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for waste collection before safe disposal. Special bins can be used to stor collected wastessuch as pieces of cables, insulators and other wastes in the substation site b fore disposal

7. Raise awareness of people working in the substation on the potential hazarol of oil spill to theenvironment and how to handle it appropriately during refilling, oil filterin or maintenance.

8. TANESCO Regional Offices are required to provide toilets and askari kio k facilities in thesubstations for the convenience of workforce. There are some which nee repair and somewhich nced to be constructed. With exception of Njiro, Kiyungi, Ilala, a d FZ III all othersubstations lack toilet, askari kiosk or both.

9. TANESCO (Regional Offices) should collect all old transformers dumped t substation siteswhich some of them have oil leakage and dispose them or store them in ap ropriate designedareas that may contain or prevent the oil leakage into the soil.

10. TANESCO should provide adequate fire fighting equipment in a right prop rtion (foam, CO2and powder) to fight any fire type in the substations and ensure that equip ent are regularlychecked to be sure that they are working properly. Some substations h d inadequate firefighting equipment or right proportion.

II. TANESCO departments and substation engineers should prepare work p ocedure manualsand instructions where such instructions are very essential and make th m available in aknown language to all substation workers. Many substations had no worki g procedures andinstructions at all or had instruction written in a language not understandabl by majority.

12. TANESCO should provide resources estimated at least USD 11,000 anually to facilitateimplementation of the proposed ESMP and monitoring plan. Other mitig ion costs will becovered in construction costs.

13. TANESCO Regional Offices should budget and urgently replace all lost r broken lids andslabs to improve the safety in the substations as some of the cable trench slabs were foundbroken or missing increasing a safety risks at night and in emergency cases.

14. TANESCO's substation engineers in collaboration with their Region Offices shouldreequip the First aid kits as required since most of first aid kits are n t equipped withessential drugs.

15. TANESCO should ensure that transformers identified having PCB cont ination (below500ppm) are not moved from where they are located. In addition substatio engineers shouldensure that there is no leakage to the soil or water. Further there should e appropriate oilhandling at all times while waiting for the national strategic plan to elimin e POPs preparedby the Vice Presidents Office (VPO)

16. TANESCO should ensure that fences are repaired, security lights work g again and alldanger signs replaced to alert people of the potential dangers as they approa h the fences

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Bibliography

I) Pollution Prevention and Abatement Handbook, World Bank Group, 1 98, pp 186-192,pp 436-440.

2) Intemational Finance Corporation, Environmental, Health and Safet Guidelines forelectric Power Transmission and Distribution, 1998.

3) International Finance Corporation, Environmental Health and Safet Guidelines forPolychlorinated Biphenyls (PCBs), 1998.

4) Intemational Finance Corporation, Environmental Guidelines for Oc upational Healthand Safety, Environmental and Social Guidelines for Occupational Heal h & Safety, June2003.

5) The United Republic of Tanzania, the National Energy Policy, Minist y of Energy andMineral, February, 2003.

6) SAPP, African Centre for Energy and Environment, Environmental A diting: TrainingManual February 2004, Botswana.

7) UNEP Chemicals, Proceedings: Subregional Workshop on Managem nt of PCBs andDioxins/ Furans, Arusha, Tanzania, November 2000.

8) SAPP, Draft SAPP Guidelines on the Management of Oil Spills, 2004

9) Stone and Webster Consultants, Tanzania Electric Supply Company Limited, SituationAssessment and Environmental Audit, Final Report Version 2.0 Power SectorRestructuring Project- Tanzania, 2004.

10)TANESCO, Emergency Power Project (EPP), Environmental audits o Thermal PowerPlants - Songas Ubungo, IPTL Tegeta and TANESCO Nyakato Mwan ra, Final Report,June 2004.

11) Vice President's Office, PCB Inventory Project, Field Testing data s eets for Dar esSalaam, Arusha and Kilimanjaro, June-August 2004.

12) Lahmeyer Intemational, TANESCO Reinforcement and Upgrade of Dar es Salaam,Kilimanjaro and Arusha, Transmission and Distribution System, F asibility StudyReport, 10 December 2004.

13) Wartsila Tanzania Limited, Guidelines for Employees, 2002.

14) Wartsila Tanzania Limited, Operation and Maintenance: A Guide to Saff y & Health

15)Songas Limited, Songo Songo Gas to Electricity project: Environ nental & SocialAssessment and Management Plan, January 2001.

16) Songas Limited, SHE-Standard, January 2004.

17) National Environmental Management Council, Tanzania Enviro mental ImpactAssessment Procedures and Guidelines Volume I through V, 2002

18) The Environmental Management Act, 2004, the United Republic o Tanzania, ActSupplement No. 3 of I Ithe February 2005.

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5 APPENDIX 01: CHECKLIST

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- m m - m m - - --- - --- -- - - - FENVIRONMENTAL AUDIT CHECKLIST FOR MOSfI AND ARUSHA SUBSTATIONS

SUBSTATIONS and Voltage Transfonnation

6UIDELINES CONSIbEItED NJIRO UNCA KILTEX THEMI MOUNT KIYUN6I LAWATE BOMA TRADE

LIMITED MERU MBtJZ SCHOOL

220/132/3 66/33/11 kW 33/11 kY 33/11 kV 33/11kV .132/66/33 33/11 kV 33/11 kV 33/11 kV

3W kV

Electric Power Transmission andbistributionPCBs Oils in transformers and switchgears

. Transformers with PCB X X X X X X X X

Suspect

* Switchgear with PCB X X X X X X X X X

* Safe disposal of PCB oil NA NA X NA NA NA NA NA NA

* Labelling . 1 x x x " x x x

* Oil kakage ' small , "small IOCB X /T1,T2 " OCB X X

* Retrof illing I I I I . I/ I

* Transport (restriction) X X X X X X X X X

* Storage NA NA X NA NA X NA NA NA

* Fire prevention NA NA NA NA NA NA NA NA NA

* Security (fencing) NA NA NA NA NA NA NA NA NA

Equipment with Chlorofluorocarbons(CFCs) or Holon

Window type Air Conditioning andrefrigerators may contain R12which is a common ond cheoprefrint in use in the region-* Presence of equipment in use IAC None None None AC "AC None None None

*wSafeispoentaoin Cfens (NCNrefrigertor)

* Safe disposal of equipment X NA NA NA X X NA NA NA

with CFCs J

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SUBISTATIONS an Voltage Trasfrmaton

6tJIbEINES CONSItEED NJIRO UN6A KILTEX T4EM MOVNT KIYUNGI LAWATE SOMA TRADE

UIMITED MERIJ MBZV SCHOOL

220/132/3 66/33/11 WV 33/11 kV 33/11 WV 33/11 kV 132/66/33 33/11 WV 33/11 WV 33/11 WV

3W wk

Storage of liquid fuels, raw and inprocess materials, solvents, wastes:to prevent spills, to prevent soilcontamination and to prevent groundand surface wdter contamination.

* Containment, Dikes and Berms I New None None None I New X X

(e.g. for trcnsformers) instal. instal.

. Storoge facility l impr. X X X X X X

* Drainoge 1Ok X imprv X / VClean Poor Poor Ok

* Need for extro gravel X I

Work Place Air Quality* Monitoring of workplace air or X

quality* 6ood ventilation (ensure) It is It is It is It is It is It is

* Maintenance of air quality AC X remotely remotcly remotelY AC remotel remotely remotely

. Providence of respiratory x X controlle controlle controlle Y controlle controlle

equipment d. Only d. Only d. Only controll d from d from

. Enforeent of the a guard a guard a guard ed from Kiyungi. Kiyungi.

application of personal x X is on the is on the is on the X Kiyungi. Only a Only a

protective equipment site site site No guard is guard is

whenever exposure levels of on the on the

fumes, solvents and other personn

materials exceed threshold el at site site

- - limits -th- sit

Work place Noise

W Noise control equipment Lvels Levels The 5/S The S/S The S/S Levels areWorld Bank limit levelsAmbient Noise bay Night clow below Is on the is RC. Is RC. below The The S/S The S/S

Residential 55 dB 45 dB limits limits industria Noise Noise limits S/S is is RC. is RC.

Industrial 70 dB 70 dB -

2

SUBSTATIONS end Voltage Tronsfornotion

GUIDELINES CONSIDERED NJIRO UNGA KILTEX THEMI MOUNT KIYSNGI LAWATE SOMA ThADE

LIMITED MERU MBUZZ SCHOOL

220/132/3 66/33/11 kV 33/11 WV 33/11 kV 33/11 kV 132/66/33 33/11 kV 33/11 kV 33/11 kV

3kV kV

* Maintenance of equiprnent / I setting below below RC. Noise Noise

Ovorlood Ovelood however the limit the limit Overload Noise below below

.Rlief relief the Relief below the limits the limits

. Use of protection gears when X kvei Levels noise is X level s ore thenoise level exceeds 85 dBA within linit below 85 below within limnits limits

limits

Other physical Agents* Safe working aea (absence of Eath I Earth / Earth - Earth "Earth

radiation, magnetic fields) Earthed

* Monitor regularly forradiation and field levels and v0 I I I I I

equipmnent integrity (earthing,Protective shields, lockouts,etc)

Electrocution* Strict procedure fordc- / d I I I I I

energizing before working onelectrical equipment -

* Trainirg of personnel forsofety procedures C/ RC from RC from I improve RC from RC from RC from

Njiro Njiro Kiyungi Kiyungi Kiyrungi

Occupationcl Heolth ond Safety-Guidelines

Ph ralfotosin hi warvkptaaArs

SignIge V X impr. X improv X improv X improv iimprv _ X improv /

Lighting (including security lights) X maint. X improv X repair X repair I repair X repair

Fire detection mechanism/equipment X X X X X X X X X

Fire fighting equipment mprv I impr X I imprv I imprv IImprv X /imprv " imprv

Cleanress (inside and outsid S/S) 1 irnpr X improv X imprv X imprv I imnprov X imprv I imprv

3

I

- ,-- - - -- - -- - = n]

SUBSTATIONS mad Voltage Transfomation

.UIELINES CONSIDERED NJIRO UN6A ItILt THEMI MONT KIYUN6I LAWATE BQMA TRADE

IAMITEb MERU WMB SCHOOL

220/132/3 66/33/11 kW 33/11 kV 33/11 WV 33/1i kV 132/66/33 33/11 WV 33/t1 kW 33/11 w

3kV kV

First Aid kit X X X RC X X X poor X X X

Features that pose safety risks X I slabs X v slabs X X X X X(missing or broken slobs dogged holes,

Fence or enclosure of the site Poor Poor I I Poor

(Restrictions of unauthorized people) Improve

Welfare facilities

Safe and clean Drinking water I boiled I boiled X X X ' boiled X X X

Toilets Iimpr X build X X X X

TV/Radio / x NA NA NA NA NA

6uard kiosk X build ' X X X

Pers protective equipment:

Eye and face, /2 prs X X

I X Remote RC from RC from RC from

Hearing X X controlle RC from RC from X Kiyungi Kiyungi Kiyungi

Hand I / d Njiro Njiro I

Respiratory, X X (RC) X

Leg and body Bots B ts s Boots

Amnbient factors In the worklwepe

Noisc X X X normal

Vibration X X RC RC RC X RC RC RC

tllunination Ok v Ok

Reflections X X x

Temperature Ok Impro Ok

Hazadous materials X X X

Biological agents X X X

lonisation radiation X X X

4

- -- m- - - - - - - - - - --

SUBSTATIONS ad Voltage Trnsfoetion

G6DJEIS CONSIOERED NJIRO LJN4rA KILTEX THEMI MOUNT KIYUGI LAWATE BOMA TRADE

UIITED MERU MBWZI SCHOOL

220/132/3 66/33/11 kV 33/11 kV 33/11 kV 33/11 kV 132/66/33 33/11 WV 33/11 kV 33/11 kV

3kV kV

Training and documentation

Training (Learning materials, equipment X X X

and tools) _ Remote RC from RC from RC from RC from PC from

Training on operational hazards ond ' need controlle Njiro Njiro Kiyungi Kiyungi Kiyungi

how to control the hazards / more Trng d by ' improv

Training on Health risks, hygiene, and X need more NJiroexposure preventiorn Trng Substati

Training on accidents and accident / need more ' improv

prevention, protective equipment and Trngon

Performance Monitoring

OHSMS organization Policy X X NA NA NA X NA NA NA

Emergency prevention, preparedness ' poor w poor X X X limited: ' poor PC Umited RC

and response limited limited limited limited limited

Investigation of work related injuries, X X NA NA NA NA NA NA

ill health, diseases and accidents

Safety inspection, testing and I I / / / /

calibration - -

Material handling (Haardous and nonhazardous Materils) x v X X X

* 5torg ______ improv__ X_____

* Labelling x X IxX X X X X X

* Handling I' need ' Need / 'imprv 'inprv ' need / 'imprv

Improv improv imprav Improv -

Solid wastes / scraps / Need ' improv ' imprv ' imprv ' poor / imprv ' imprv

* Handling Improve improv - Improve

* Disposal Imprv. X improv / I imprv I imprv ' Imprv. ' imprv ' imprv ' imprv

improve IcI _

5

i

I

I

I

SUBSTATIONS cnd Voltage Tronsformtion

GUlELINES COSDERED NJIRO UNGPA KILTEX THEMI MOUNT .IYUNGI LAWATE BOMA TRADE

LIAMITED MERU MBlIZI SCHOOL

220/132/3 66/33/11 kV 33/11 WI 33/11 V 33/11 WV 132/66/33 33/11 W 33/11 kW 33/11 kV

x xAvailability of Space for Expantsion / / acquire / O V acquirc ' X cxtra

extra extra land

land Iand

ENVIRONMENTAL AUD1T CHECKLIST FOR DAR ES SALAAM SUBSTATIONS

SUBSTATIONS and Voltoge Tronsfomnotion

GUIDEIINES CONSIDERED ILALA SOKOINE a MIKOCHE MSASAMN OYSTER FZONE FZONE FZONE I KVRASIN Chatisze

CENTRE tN BAY in n

132/33/ 33/11 kV 33/11 33/11 kV 33/11 kV 33/11 132V33/ 33/11 kV 33/11 kV 33/11 kV 132/33

llkV kV kV 11 kV

Electric Power Tr.nkssbin aondDistributionPCBs Oils in transformers ond switchgears

. Transformers with PCB X X X X X X ' suspect X X Suspected

Contmanin

. Switchgear with PCB X X X X X X X X X X Asspctd

* Safe disposdl of PCB oil NA. NA NA NA NA NA NA NA NA NA NA

* Labelling 'bluc X blue X X X blke X X X

* Oil lekoge X X X J OCB : OC8 ' tronsF 'trf X

* Retrofiling

* Trcnsport (restriction) X X X X X X X X X X

* Storage NA NA NA X NA NA X NA NA NA NA

. Fire prevention NA NA NA NA NA NA NA NA NA NA NA

* Security (fencing) NA NA NA NA NA NA NA NA NA NA NA

6

I

--SUBSTATIONS and Voltage Transformation

GTIDEUNES CONSIDERED .IUULA SOKOINE aTY MIKOCHE ISASAM OYSTER FZONE FZONE FZONE I fU d e

CENTRE NI BAY II II

132/33/ 33/11 kV 33/11 33/11 kV 33/11 kV 33/11 13V33/ 33/11 kV 33/11 kV 33/11 kV 13V33

llkV kV kV 11 kV

Equipmtent with Chateofluarocarbons(CFCs) or Holan

Window type Air Conditioning andrefrigerators may contain R12 whichis a conmon and cheap refrige,rnt inuse in thercoion

Presence of equipment in use I AC None Nore None None V AC / AC Nonc None

which may contain CFCs (AirConditioning, refrigerator)Safe disposal of equipment with X X X NA NA X X NA NA NA NA

CFCs

Storage of liquid fuels, raw aN inprocess nmtcrials, solvents, wastes: toprevent spills, to prevent soilcontamination and ta prevent groundand surface water cntamWntion.

. Containment, Dikesand Bms x - X Nohi X X X X X X

(e.g. for transformers)

. Storage facility X X X X X X X X

* brainage 1 Ok X peor Ok Ximp.

. Oil ekolge x x x x x I haiing ' trsf X

________ontro* Ned forextra gravel X 7 / -

* Monitoring of workplce air I

qudty It is It is It Is It is It is itIs It is It Is AC

. Good ventilation (ensure) remotely remotely remotely remotely remotely remotely remotely remotely OK

* Maintenance of air quality AC controled. controlle conroled. cntrolled cantralle contrlled contoled cotroled AC

Only a d. Only Oly a d. Only ,eF Onlyo . Ony a

* Providence of respiratory x security a security a x ry OtY NA

equipment guad is on security guord is on security guard is guord is

7- -

I

- m - - - m - - m - - -.

SUBSTATIONS and Voltage Tratfmahton

GWUEUNES CONSlDERED IALA SOW E CMiY MIKOCHE ASASAM OYSTER FZONE FZONE FZONE I KUAA5N Chelir-

CE NTRE NI 8AY I II132/33/ 33/11 kV 33/11 33/11 kV 33/11 kV 33/11 13V/33/ 33/11 kV 33/11 kV 33/11 kV 132/33

liV kV Ic 11 kV

. Enforcement of the dpplication the site qurd is the site gUrd is on the on the

of personal protective x an the on the X site site NA

equipmnet whenever exposwre site sit

levels of fumes, solvents andother materials exceedthreshold limits

Work plce Noise The S/S is

. Noise control equipment 'Levels The S/S is The S/S an the The S/S is The S/S Noise Not

World Barnk limvit kvels within RC. Noise is RC. industrial RC. The is RC, levels The S/S is The 5/5 The S/S measured

limits kvel below Noise setting avtrage The within the RC. Noise is RC. is RC.

Ambient NWise D-y Night- 55dB the limit within The Noise level oavrage limits within the Noise Average

Residential 55 dB 45dB the aerage is 47dB Noise limit within the Noise

Industrial 70 dB 70 d - limlts noise level level Is limits level Is

. Maintenance of equipment is 62dB 56dB 48dB

Overload which is Overload

Rlief bdb 70dB Rlief

* Use of protection ges when X liit X level s

noise lvel exceeds 85 dBA eXqDae ae within

diatl limits

Other physical Agents* Safe working are (absence of v o' E Earth V Earthed ' Earth ' Eo.th ' arth ' Earth ' Earth 'Earth

radiation, magnetic fields)

* Monitor regula for radiationand field levels and equipment I .

integrity (aothing, Protectiveshiedsb 6ekni-t-- -= -

Electrocution. Strict procedure for de- I I S / / / I I I

energifing before worldng anelectrical equipment

o Proper fencing of s/s to r w e nee ' repair / rpar

pevcnt the public from repair

electrocution -_-

Ii

SUBSTATIONS and Voltag Trnsfowtion

6UIDEINES CONSIWEREb ILAIA SOKOINE aTY McKOCHE MSASAI OYSTEk FZONE FZONE FZONE I KAASTh aCwiin

CENTRE NI BAY m n

132/33/ 33/11 kV 33/11 33/11 kV 33/11 kV 33/11 132/33/ 33/11 kV 33/11 kV 33/11 kV 132/33

llkV kV kV 11 kV

. Training of personnel for safety

procedures ' bv Rf RCfrn RCfrm RC RC RC wed to RC from RC from RC from X need

Db oer Ilala or continu Dob or Ilaloa or Ibal or traiing

Occupatioial Health and Safety

GuidelinesPhysical factors In the worplace

Signma" / / Wr / / / / /

Ughting (including security lights) X rupair X repair X repair V irepair / repir X repair X repair ' replace /

Fire detection mchanism/equipment X X X X X X X X X X X

Fire fighting equipment - InrV / inWrV / kw " krv / inrI " imrv v X replace X replace 'hrpv / lnprv

Cleanness (inside and outside S/S) X impr / krrov X imnprv X -Iprv I/ rnrov X imp iWv / hv

First Aid kit X X X X RC X X X poor X X X 4irnro

Featums that post safety risks (rissing X X 'repeir XX X X replace 'replace X Repair

or broken slobs dogged hoks, etc) skbs hprove sbs

Fence or enclosure of the site I repir ' poor W

(Restrictions of unouthori2ed people) -mprove

Welfare facUitiesSafe Ond cleon brinking wter ' X X X X ltop - X X X

____ ' repir 'repair X build v X const. X k/w4y

TV/Radio NANA NA NA NA NA NA

6uwrd kiosk / U/z X build X X

Pernal prtectiv eqpment

Eye ond face, X

_ _-r

RG -od- -

|

RC from RC controlled RC RC frorn mantained Ialo or NA

Head ICa rr

hlCaIo or by Elect. ibunw ' h

Hewing X lUhqo x W/P NA

HW v S/S le . {

Respiratory, X X

NA

Leg and body /

Iats

9

SUBSTATIONS and Voltage Transfarmaion

GUFIDELINES CONSIDERED IULA -sOOINE CIY MIIKOCH #SASA OYSTER FZONE FZONE FZONE I KURASTa Ch.bz.

CENTRE NI BAY III II

13V331 33/11 WV 33/11 33/11 WV 33/11 kW 33/11 132/33/ 33/11 kV 33/11 kV 33/11 kW 132/33

llkV kV kV 11 kV

Ambient factors in the workplaceI normal

X RC RC RC RC within RC RC FtC

Noise limits OK

Vibration X X None

Illumirnation 1 Ok V Ok None

Reflections X X None

Ten0peratur V Ok Ok OK

Hazardous mteriXls X - NA

X angical agents X X Nonc

IofisXtion radiation X Not

-masr, ed

Troinrng and documntation

Training (Learning materials, equipment X x

and tools) RC frvn RC fraoq Renote RC fran RC fram RC from RC from RC frm X rom

Training on operationral hazards ard how Wa or Dlob or controlled Ikbl or IhaL or Ibl or Ilaa or halo or x

to control the hazards LUuqo UbNgo Ubuno UbuMo 4 uv UbVu Ubm Ubugro

Training on Health risks, hygiene, and X X X

exposure prevention:

Training on accidents and accident 4 ;yv x

prevention, protective equipment andclothing__ _ _ _ __ _ _ _ _ __ _ _ __ _ _ _ _ _ _ _ _ ___ _ _ ___ _ _ _

Performance MonitoringOHSMS organization Polky X NA NA NA NA NA X NA NA NA NA

- -w X li.d-d X-lim- XMii.ed X ed -- poor- Imrie I- tC N -

rcsponse lhited limited limited

Investigation of work related injuries, ill X NA NA NA NA NA I iknpyo NA NA NA None

health, diseases and accidents

Safety inspection, testing and calibration " 1 1 1 1 1 x

10

I

- -- - - m m - m - m - - - m - - I

SUBSTATIONS and Voltage Transformation

cuJrNES CONSIDERED ILALA SOKOIN CTY MIKOHE ASASAD OYSTER FZONE FZONE FZONE I KAASTa Chlhz

CENTPE N SAY m rr

132/33/ 33/11 WV 33/11 33/11 kV 33/11 kV 33/11 132/33/ 33/11 kV 33/11 kV 33/11 kV 132V33

i1kV kV kV 11 kV

Material hadlirg (Hazardous id nonhazaous Materials) I x X X x ' irb X X X 1 i

* Storage

* Labelling X. X X X X X X X X X X

Handling need -V hp. / Vimpv /myrv ne tred Xirov 'r i'p / iF

Improv ._ Irnprov

Solid wastes / scraps NA iqv j imav imprv / ir I i v k' in iv irv

* Hndling Improve Improve

* Disposol - Irmprv. " inv ipry 'ipove I inkrqv I Imprv. / im.prv k m Iinp Iie

X require X require X require

Availability of Space for Expansion / I an extrha v a on exom anext

.and land land

Environmental Audit is required: to identify environmental and scfety shortcomings existing in substations and then corrective measures are

recommended to improve the stations' environmental and safety performance to mect minimum WB guidelines requirements

Key

NA - Not Applicable Improv - Need some improvements

- Yes or OK RC- Remote controlled substation

X - Not or No S/S - Substation

/ transf - yes on transformer Trng - Training

1O - yes on Oil Circuit 9reakrr Rpai- need some repir -- -

AC - Air Conditioning Maint - maintenance is required

/ Impr - It is there but needs some improvements i Contamin. - Yes, it is contcminated

11

iI

I

Reintorcement and Upgrade of Dar es Salaam, K-illmanJaro and Ar |sha Transmissionand_Distribution_System ________

1 APPENDIX 02: PHOTOGRAPHIC bOCUME MATON

I..

I-

ii

I

i

Reinforcement and UIpgrade of Dar a Salaam, Kilimanjaro and Arusb i Transmission

and Distributlon System

SUBSTATIONS: Photographic documentation

Photos 1: Mikocheni 33/lkV Substation

* 1

Z Se*-----w

2 ~

_4

3

.~~ .i..

Photo doc.

I

IReinforcement and Upgrade of Dar es Salaam, Kimianjaro and Arusb t Transmission

and Distribution System

Photos 2: Oyster Bay 33/lkV Substation

4 .'L-

2

~-,

I- .

3

-- -'- LŽL.

IPhoto doc. 2

I

RdeiforcenAent and Upgrade of Dar es Salaam, KUlm jaro and Arns Transmwisso

and Dhtribtiton System

Photos 3: Msasani 33/llkV Substattion

p.1II.

2 3

I'Il

Ptd 3

Pht -o.

I

I

i

II

II ~Reinforcentent and Upgrade of Dar es Saiaamn, KUiianjaro and Arusb Transmissionand Dlstribution System

I Photos 4: Illal 132/33/11kV Substation

* --

Iz

, -- 4 - .

* 3

Ie , -

I~~. Pht o. ..

-I ...

Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Arush Tranmission

atid Distributbon System

Photo 5: City Centre 33/lkV Substation

1

U..

Photo 6: Sokoine 33/llkV Substation

I, -

I -

Photo 7: Factory Zone Ur 33/lkV Substation

Photo doc. 5

I

I

UReinforcement and Upgrade of Dar es Salaam, KillminjaLro and Arush TransmlssIonad Distribution System

Photo 8: Factory Zone III 132/33/l1kV Substation

1%

Photos 9: Factory Zone I 33/11kV Substation

* -E,,',,l9

2

IE

Photo doc 6

.. - .. . ..... - -- .- .. -... -- . - .-..- -.. - .. -.. --.. ---. -.. - -- ..

I

I

I

I

Reinforcement and Upgrade of Dar es Salsam, Killmanjaro and Arush t Transmision

and Distributon System

Photos 11: Njiro 220/132/33kV Substation

1

II

Phot doc .8

1~~.' 2 '4j~~It

Photo 12: Theni 33/11kV Substation

I1 ,w

I Photo doc. 8

i

i

Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Arush TransmIssion

and Disibution System

Photos 13: Kiltex 33/lkV Substation1

b-s.

2

0 1 ~'v-,

I~ -q -

Photos 14: Mount Meru 33/likV Substation

Iht ll

IPhoto doc. 9

IX

---

Reinforcement and Upgrade of Dar es Salaani, Kilimanjaro and Arusb Tranmission

and Distribution System

I2'1'Ii

.4

Photos 15: Unga Limited 66/33/11kV Substa-tion

I-I

2

Pt d

I Photo doc. 10

Reinforcement and Upgrade of Dar es Salaam, KIlImanjmro and Arush Transmission

and Distribution System

Photos 16: Kiyungi 132/66/33kV Substation

-,I

2

3

Photo doc. 11

!

Ar-V C47Reinforcement and Upgrade oftDar es Salaam, KWaijm anur sd Arusba Transmission

and Distlbution System

Photos 17: Soma Mbuzi 33/llkV Substation

Phot odc.1 i' 1

jI L

I-

PhtUo.1

iIi

i

I

Reinforcement and Upgrad eof Dar a Salaam, Kilimanjaro and Arash Transmision

and Dlsributlon System

Photos 18: Trade School 33/lkV Substation

I.

I I

2

Photo doc. 13

Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Ar sha Transmission

and Distribution System

APPENDIX 03: PCBs LABORATORY TEST RE ULTS FOR

SOME SELECTED TRANSFO ERS

lII... .

Ii

TEM PLATE TO BE FILLED FOR C'EVE' (01t.) SAMNIPLED EQ IPMEiNr

Sc,;mnple MNtber: % I L la t- A

D -te of Saniple: f t z- O!cm,k.n. me of ReQion: 1Lfl L

;.!me and designation of person who took the sample:

f- iipnment Identification Number and Name: O 'ZZ| \eo (

T c of' Ec1inller (See note below): -Z

- ;a;i: &'-E.Ec:lipvinen (kW or k%A): C 5,0 0 V,xv P,Ai..

I : zipnlent Installation Date (from nanmeplate if available): __3±

N- -e of Substation or Feeder; C-T' CZ - Z , S -W 0 o .

N,, e: Distribution Transformer. SuLbstatioii Transformer, Capacitor Bank; o Voltaoe Regulator

I

I d1

i

- - - - -- --- ---- - - - -- -

TEMPLATE TO BE FILLED FOR EVERY (OIL) SAMPLED EQUIPMENT

Sample Number: 1 - N 10 rH

Date of Sample: 5012 |20oo

Name of Region: JA t r-OwFTl

Name and designation of person who took the sample: IQ .U.ASThA-N.yA Cm 9

Equipment Identification Number and Name: T 314 2.

Type of Equipment (See note below): s.-um-v-io N v-aAt.'s Poa2.?-

Capacity of Equipment (kW or kVA): <5ooo V-VA ?D3/i I v v

Equipmcnt Iinstallation Date (from nameplate if available): I 9 G 3

\lame of Suibstation or Feeder: c--/ S T-T5GA asTA-F'o rQ

ote: Distributionl Transformer, Substation Transformer, Capacitor Bank or Voltage Regulator

=-=--.- . . = .=-=-=-------- ------- ----------

_.. .. .

i

i

i

i

-j-= = - - = = a - - -~ c. -=--= - =- = -m

TENIPLATE TO BE FILLED FOR EVERY (OIL) SAMPLED EQUIPMENT

npleNumber: Ti Tec-'-.eofSample; Z.

llC of Region;: T- e\VJt

-ne and designation of person who took the sample: bJ MA AZ / | L

ipmnelt idenitification Numnber and Name: 9 ;4 C) c 0

le of EqLipmnenit(Seeinotebelow): 7RA( £ C -Goj % iR.6Z,

acity of Equipment (kW or kVA): C 5 Vi t (VA ' 3 31 Wv

ipnient Installationi Date (from nameplate if av ailable): t 9 5 3

e of Substatiol on Feeder: GU Q k AAt- t U t <t % ut4.(FAcro y Zo2iEI/

: DistribLtionl Transformer, Substation Transfoimer, Capacitor Bank or Voltage ReguLlator

= - - = = - = - = = = = - - - - -I

I

l --------- == = = = = ======C=== ==

TEMPLATE TO BE F[LLED FOR EVERY (OIL) SAMPLED EQUIP MENT

Sample Number: °i C(T])Date of Sample: 5h1/3 / Lg2

Name of Region:____

l Name and designation of person who took the sample: f - cr 4

Equipment Identification Number and Name:__

Type of Equipment (See note below): - 4-o...

Capacity of Equipment (kW or kVA): 5 C_

Equipment Installation Date (from nameplate if available): -- _-

3 Name of Substation or Feeder: A-nA "4c. p o <e >

Note: Distribution Transformer, Substation Transformer, Capacitor Bank or Voltage Regulator

.. ........... ......................... .. ... .......... ................... "...... ......... .... ...... -----------.. ...... ... ..

---- ====-- ====-=8=,======== --.=-= =-:-------

TEMPLATE TO BE FILLED FOR EVERY (OIL) SAMPLED EQUIPS LENT

Sample Number: 7 (- 3)Date of Sample: 5 / si |ij 4

5j,ame of Region: z

Name and designation of person who took the sample: f - /

Equipment Identification Number and Name:

Type of Equipment (See note below): - 4 AZc.is $

Capacity of Equipment (kW or kVA): i Ooc>

Equipment Installation Date (from nameplate if available):

Name of Substation or Fecder: ArU-GA .

N=: Distribution Transformer, Substation Transformer, Capacitor Bank or V Itage Regulator

I-- = = = == = = == = = = == =- = =---= = == = e= --- =- - == = = = -= I= =

---

Accutesl Laboralorites

Report of Analysis Page 1 of I

Client Sample ID: t-ILALA

Lab Sample ID: T7312-1 Date Sampled: 02 05/04

Matrix: SO * Oil Date Received: 0 16/04

Method: SW846 0S62 Percent SoUds: n/

Project: Tanesco - Tanzania

Fll ID DF Anayzed By PMep Date Pre) Batch Analytical Batch

Run il GG18352.D 1 04/21/04 NS 04121104 OP 302 GGG555

Run 2

Inittail Weight Final Volume

Rur. *1 1.00 8 100rl

Run I ..-

PCB List

CAS No. Compound Result RL MDL Units Q

12674-11-2 Aroclor 1016 ND S00 100 ug/lkg

11104-28-2 Aroclor 1221 ND 500 160 ugAg

11141-16-5 Aroclor 1232 ND 50o 140 ug/kg

53469-21-9 Aroclor 1242 ND 500 120 uglg

12672-29-6 Aroclor 1248 ND 500 160 uagkg

11097-69-1 Aroclor 1Z54 ND 50 120 ug/kg

1109642-5 Aroclor 1260 ND 500 100 ug/kg

CAS No. Surrogate Recoverles Rune I Runt 2 LImits

8774-98 Te;khiom-m-xylene 18% c 34-138%

2051-24-3 Deucciorolpbheyl 22% 20-162%

(a) PerCeDt solIds not anlyzed due to saxpe matdx. Results rported an wet weight bas

(b) Outside contrto limits due to mairix isterfaenc.

ND - Not deected MDL - Method Detecdon Liti j - Indicates an estimat d value

RL - Reporung Limit B Indiates aalyte f nd In aSocied mnethod blank

E - IndicaLes value exceds calibralon rage N - Indicates presumpt ie evidence of a compound

3=I-A.L

- - - -

Arcuta, Lahoramorie

Report of Analysis Page l of I

CUent Sample ID: I-K/NORTH

Lab Sampk ID: 17312-6 Date Sumped: 02/05/04

Matix: SO Oil Date Received: OV/I04

Method: SW846 8082 Percent Solids: /a/'

Prjec: Tanesco - TnLaa

Fi EID DF Analyzed By Prep Dat Prep Batch An Ly Batch

RvRua#l GG18357.D I 04t21104 NS 04121/04 OP3302 Cc 555

Run #2

Inidtl Weight Final Volume

Ri #1 I.o5 g 10.0 m

Rutn 02

PCB LNsD

CAS No. Comnpounsd Resut RL MDL Urdt Q

12674-11-2 Aroclor 1016 ND 480 95 ughkg

11104-28-2 Aroclor 12ZI ND 460 150 ugAg

11141-1155 Aroclor 1232 ND 480 130 ughg

S3469-21-9 Aroclor 124Z ND 480 110 ug/kg

l26722296 Aroclor IZ48 ND 400 150 u^gkg

11097221, Aroclor 1254 ND 480 110 uhgf

11096-82-5 Aroclor 1260 646 4 95 ughg

CAS No. Surrgate Recoveries Run# I Run# 2 Limits

87-09- Tetchlro-at-xylee 46% 34-138%

2051-24-3 Decacdoobiphenyl 17% c Z0-162%

(a) Percent solids not analyzed due to sample matrix. Resl4s reported on wet weigh' basis.

(b) Sample appers to contains PCB congenen tbat do not maicb any of the standard PCB patterns.

(c) Outside control limits due to imaix interference.

ND - Not detecied MDL - Metod Detectio Limit j - b M a estsaed value

RL - Reportng Limit B - idcates aualyte found In usodated method blak

E - Indiates value exceeds caUbrain range N - Indtes presumpUve eviden of a pod

M M10of32IArE

kepon us r .. Page

CUrent Sample ID: 01 (Tl)-ARUSIA .. o

Lab Sampk ID: T7311-9 Date Sampled:

Matrix: SO - Oa Date Received: 03/05,

Method: SWS46 SO2 WJt46 35110A Percent Solids: 04/16/

Project: Tanesco . TmS_WU46 3580A

n/a'

6ile ID) 1)1 Aslv1al-d ilv l'rep l)aDttv kalmil AsialIical Batc

Rkun 41 I 1;S i'9 D 10. 01 '2 1N1t21 1l Z tltit

PCB List

CAS No. Compound Result RL MDL Uni-

1 2674-11-2 Aroclor 1016 ND 470 94 ug/kg

11104-28-2 Arocior 1221 ND) 470 15O azglku

11141-16-5 Aroclor 1232 ND 470 130 ug/kg

53469I-21 Aroclor 1242 ND 470 It0 ug/kg

12672-29-6 Arocor 1248 NO 470 I50 UgA

11097-69-1 Aroclor 1254 ND 470 110 ug/kg

11096-i2-5 Arodor 1260 ND 470 94 ughg

CAS No. Surrogpte Reooverles Run# I Run# 2 LimIts

877-09-8 Tetrchloro-m.xylene 30% c 34-138%

2051-24-3 1 .ta it *-rotsiph-.nvi 29% 20-162%

(a) Percent solids not analyzed due to sumple mauix. Resuts reported oR wel wevibi basis.

(b) Sample appeas to contain PCB congeners that do not match any of the standard PCI pal ins.

lc) Outside control limits due to matrix interrerpsivee

ND - Not detected MDL - Method Detecton Uldl J indicates an esauled v ue

RL - Reporting Lbuit B - Indiates aAalyte found Issoldated method

E - Indicates value exceeds calil.hnina r;ingv N . Indiates presumptive e dence of a copoud

&lC

IqI,

ii

i

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Acutest Labortories

Report of Analysis Page I of.

I CiSenit Sample m:~ 02 (J13)-ARUSHALAb Smnple ID: T731 1-10 Date Swmpled: 03/0/0

Matrix. so -Oil Date Received: 04/1 /04

M"hot: SW$4 S082 SWB48 3580A Percnt Sallds: o/ '

Ta - -Ta -:l

FilelID DF Anyed By PrepDate Prep btch liAlytul Bascc X

.RWa1 b GG184N.D I 04/24/04 NS 04U22/04 OP31 * CGGS5

Ran J2

3dal Weight Flnal VolumeRua #1 1019 g10.0 al

Run *2

PCB Lit

CAS No. Compound Result RL MDL Units Q

12974311-2 Aroclor 101 ND 50 99 ughg

11104-28-2 Aeclor 1221 ND SOO 160 ug/kg

11141-16-5 Aroclor 1732 ND SOO 140 ug/kg

53469-21-9 Arodor 1242 ND 500 120 ugkg

12672-294 Arodor 1248 ND 500 160 u/kg

1109749-1 Ardor 1254 ND SOo 120 ug/kg

1140968-2-5 Amdor 1260 ND 500 99 us/k

CAS No. Surrogte Rec9veres Run# I Run# 2 Limits

877--8 Teinchloro-m-xylene 30% t 34-138%

2051-24-3 Dechlorobpbenyl 26% 20-162%

(a) Percent solids not uanlyzed due to ample nutrix. Remts reported on wet weilt hAs

(b) PCB pattern appeas to be weathered.(c) Outside contrl limlit due to matrix lcerrerwce.

ND - Not detected MDL- Metbod Detecdon Lhimt J - ldicates an estimated r ue

RL - Repowing Limit B - Indicates anslyte fuad associated method b121:.

E . Indicates value exceeds caUbradon rage N -Indicates presumpdve c 1desce of a compound

In

i

Accuiest Laboratories

Sample Summary

Stone & Webster Consultants

Tanesco - Tannia JobjIb o: T7312

Project No: Tanesco-Tanzanla Super Reglon I

SsLmpke CoUected Matrx CUent

Number Date 'nme By Received Code Type Sample ID

T7312-1 02/05/04 00:00 SWC 04/16/04 SO Oil -ILALA

T7312-2 32/05/04 00:00 SWC 04/1V04 SO OD1 2-ILALA

T7312-3 02/05104 00:00 SWC 04/16/04 SO Oil 3ILALA

T7312-4 02/05/04 00:00 SWC 04/1/04 SO Oil 4-ILALA

T7312-S 02/05/04 00:00SWC 04/16/04 SO 0cc 5-E.ALA

T7312-6 02/05/04 00:00 SWC 04/16/04 SO Oil I-K/NORTH

T7312-7 02/05104 00:00 SWC 04/16104 SO O0l 2-K/NORTH

17312- 02/05104 00:00 SWC Wi46/0 SO OU 3-KINORTH

17312-9 02/05/04 00:00 SWC W/6/04 SO Oll 4-K/NORTH

T7312-10 02/05/04 00:00 SWC 04/16/04 SO OU 5-K/NORTH

T7312-11 02/08/04 00:00SWC 04/16/04 SO O I-K/SOUTH

17312-12 02/05/04 00:00 SWC 04/16/04 SO Oil 2-KSOUTH

T7312-13 02/05/04 00:00 SWC 04/16/0 SO Oil 3-K/SOUrH

Soil sampks reported on a dry weight basi less almowwse indicaed on rlt page.

I rP 3 of 32AOOUT......

I

Acuud [Aboodesc

Sample $ummary

Stone & Webster Consultants

Tanesco - TanzaniaProject No: Tanesco-Tanaa Super R on I

Sapie Collected Ma1x CUent

iNwrnber Date Time By Received Code Type Sauwle ID

T7312-14 02105/04 00:0SWC 0415104 SO 01 44CIOM

T7312-15 02/06/04 00:00 SWC /6/04 SO Oil S-K/SOUTH

T7312-16 OZ/6104 00:00 SWC 04/16/04 SO 0D 1TETMEIK

T7312-17 OZ/06t04 00:00 SWC W16/04 SO Oi 2-TEMEKE

T7312-18 02106/04 00:00 SWC 04/16/04 SO o0 3-TEMEKE

17312-19 02/06/04 00:00 SWC 04/W16104 SO Oil 4-TEMEKE

17312-20 02/04 00:00 SWC 04/1OU S0 OU 5-TEMEKE

St,il sanip;,p:s reporwvd on a dry weight basis unless otbelwse indlSed on result page.4of3

... :......

I

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- - m m

110 - C- 8 8 8 8 8 8 8 8 8 8 8 8~ i

O 4 888 o S 8 8 8 i

efi n o~ o o o o cB 0

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0-

- 8 2 2 2 ~ 2 'Er

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I

I Reinforcement and Upgrade of Dar ef Salsarin, KilimanJaro abnd Aru ha Transmission

and Distribution System

3 ~ APPENDIX 04: LIST OF CONSULTEt PEC PLE

. - . - - . . - - --. -..- - - � �. - . - - - ---- - - - - � - �- 7- - -

I

Reinforcement and Upgrade of Dar es Salaam, Xllimanjaro and A usha Transmission and

Distribution_System____________

LIST OF PEOPLE CONSULTED

TANESCO LTD1. Mr. Masasi TANESCO Regional Manager, Arusha

2. Mr. N. Nsulau TANESCO Regional Manager, Kilimanjaro

3. Mr. Desder R. Rutta Substations Technician Supervisor (Arusha)

4. Mr. Faustine Mavelle Substations Maintenance Engineer (Kilimanjaro, A -usha and

Tanga)

5. Mr. Said Msemo Electrical Technician (Ilala)

6. Ms. R. Luteganya Electrical Technician (Kinondoni North)

7. Mr. Ngonyani Substations Engineer (Kilimianjaro)

8. Mr. James Luchagula Investigations Engineer (DCPR -TANESCO HQ)

9. Mr. Gadiye Substation Maintenance Engineer (Electrical Wo kshop-

Ubungo)

10. Mr. Pascal C. Mwoga System Control Supervisor (Factory Zone 111)

It. Mr. Eli Mbuya Control Room Technician (Nj iro substation)

12. Mr. Rahim Mziray Control Room attendant (Unga Limnited substation)

13. Mr. John Shadow Control Room Tc;hnician (Kiyungi)

14. Mr. Muki Control Room Technician (Kiyungi)

OTHER INSTITUTIONS15. Mr. Charles Swai Vice President's Office - Division of Environment DOE)

16. Mrs. Kisanga Vice President's Office - DOE

17. Ms. A Madete Assistant Director DOE - Vice President's Office

18. Mr. J. R. Kombe Assistant Director EIA - NEMC

19. Mr. Edward Kihunrwa Ministry of Land and Human Settlement- TRC me: iber

20. Mr. Julius Shilungushela Land Use Commnission MLHS - TRC member

21. Ms. Agness Mwakaje Institute of Resource Assessment UDSM - TRC M mber

22. Mr. Jeko Sanga Resident near Msasarii Substation

23. Ms. Jawa Elias Kisapile Security guard Factory Zone II substation

24. Mr. G. K. Mkeni Ward Executive Secretary Engutoto- Njiro

NJIRO - ENGUTOTO WARD RESIDENTS - MIEETING HELD ON 25 k' NOVEMBER 2 04

Agenda:> Public information about the project i.e. the construction of new transmnission line from Kiyungi to

Njjiro Substation and rehabilitation of the Nj iro Substation

> Receiving comments and concerns about the proposed project from people along the n w

proposed line and around the substation

LIST OF MEETING PARTICIPANTS

1. Lobulu Siroeti 13. Zainabu Sindato

2. Abdul Majid Ahmed 14. Petro Kancte

3. Innocent Zelothe C/O Makundi Boaz 15. Lawrence Memnruth

4. ElisiphaLoth 16. LengaiNamuriri

5 . Monilca ICisiri 17. Japhet Silas

6. E. A. Mollel 18. Lubanguti Long'am a

7 . Elisha Philipo 19. Felex Sainmkwa

8. Paul Kamnete 20. Marko Simnon

9. Philipo Memruthi 21. Stephano Merinyo

10. Jacksoni John 22. James Mernruthi

11. Hermany Richard 23. Obadia Kisiri

12. Khalid Issa Moharnmd 24. Abdallah Ismail

Environmental Audit Report - Final I

�M

Reinforcement and Upgrade of Dar cs Salaam, Kilimanjaro and irusha Transmission and

Distribution System

25. Erasto Mcleji 40. Ramadhani Ibrahi Lesian

26. John Abraharnu 41. Stephen George IV ollel (Councilor)

27. Michacl Menruthi 42. Lothi S. Kola (C airperson Hamlet Cl)

28. Bernadi Memruthi 43. Elizabeth Mtowa 4 Chairperson Hamlet C2)

29. Edward Sikon 44. George K. Mkeni WEO- Engutoto)

30. Joseph Menruthi 45. John Lazimah -E iv. Engineer TANESCO HQ

31. Meshack Shangai 46. Mansur Hamduni - Env. Engineer TANESCO

32. Mohamed Abrahaman HQ

33. Ezekiel Shangai 47. Dr. Agnes Mwaka je- IRA UDSM -

34. Elias Mernruthi TRCMember

35. Estonmi Meseya 48. Mr. Julius Shilun ushela - MLHS - TRC

36. Magnet Steven Member

37. Mrs Lukenelo R. Mbaga 49. Mr. Edward Kihu krwa - MLHS - TRC

38. Philipo Eliapenda Member

39. Coelestina Kazaura

MCHIKICHINI RESIDENTS - MEETING HELD ON 191h January 2005

Agenda:> Public information about the project i.e. construction of new transmission line from liala Substation to Kurasini

Substation and rehabilitation of Ilala Substation

>Receiving comments and concerns about the proposed project from people along th new proposed line and around

the substation

LIST OF MEETING PARTICIPANTS

I Khatibu Riyami - VC 28. Likulile Mussa

2. Rajabu Zegega - Asst. VC 29. Shaban Kondo

3. Jumanne Kibona 30. Hadija Omary

4. Rajabu Mdodo 31. Zuena Kasamba

5. Abdulkadiri Kagandi 32. Teresia Robart

6. Thabit Kadulo 33. Habibu ika

7. Kawasa Kasanda 34. Shaban Adam

8. Seleman Normohid 35. Kulwa Kalenga

9. Kondo Mohamed 36. Moshi Omary

10. Haniis Kaganja 37. Jumu Magoga

11. Almnasi Semlengwa 38. Rehena Maulid

12. Rashid Ally 39. Joseph Sinibaula ga

13. Doto Ally 40. Fatusna Hajaji

14. Venance Tarinmo 41. Mwanahamis A iani

15. Idd Kitingo 42. Hamis Daud

16. Hasan Salum 43. Tabita Athurnani

17. Ramadhani Rashid 44. Said Walala

18. Ramadhani Fimba 45. Masangura Josh

19. David Sempira 46. Amina Mung

20. Caroline Joseph 47. Arubugast Peter

21. Maua Rashid 48. Rashid Mgeui

22. Valeriano 49. Fatuma Hassan

23. Omary Kishimba 50. Fasi Pius

24. Johari Mkonganya 51. Zuhura Fadhili

25. Stunmai Omary 52. Harmsa Chaa

26. Ally Magoga 53. Rajabu Omiary

27. Jumanne Kadulo 54. Arnina Shaban

Environmental Audit Report -Final 2

S S So

Reinforcement and Upgrade of Dar es Salaam, KilmanJaro and Ar Jsha Transmission

and Distribution System - __-__- __-- _

* APPENDIX 05: Training Needs

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Reinforcemwnt and Upgrade of Dar as Salasm. K L1ianjaro and

Aru-ha Transmission and Distribution System __

ENVIRONMENTAL UNIT TRAINING NEEDS UNDER THE W )RD BANK

PROJECT

ENVIRONMENTAL MANAGEMENT HEALTH AND SA FETY

AN OVERVIEW PLAN AND BUDGET

FINANCIAL YEAR 2005 - 2006

1.0 General informationIt is proposed that some amount of money earmarked for the project sh auld be used for

capacity building purposes. The training should be focused in environn ntal, health and

safety management. The purpose of the training should be to strengt] ien TANESCO's

environmental health and safety management performance in the audite substations and

strengthening the capability of environmental unit to carry out environmrntal audits, EIA

and monitoring studies. This will also ensure that environment is gi en appropriate

consideration in all substation operations, and development.

It is proposed that the environmental unit participate in the courses org *zed by the East

and Southern African Management Institute (ESAMI) in the area of envi onmental audit

and environmental management. The substations personnel should atte d a tailor made

courses that will focus on the environment, health and safety and work p ocedures using

reputable resource persons.

2.0 Implementation Plan

In the year 2005/2006 financial year, the following should be done:

> Capacity building through training (short term environmen -al courses) of

Environmental Unit staff> In house seminars for capacity building on Environmental, He ith and Safety

awareness raising and work procedures to all TANESCO staff working in the

substations (operating and maintenance technicians and engineer)

3.0 The courses and the estimated costs

The estimated implementing costs are shown in the table below:

Ant1dpated

S/N Proposed coursel training Number of costs

. Partidpants Course Dates (USD)

Environmental Management1 (Windhoek Namibia)

(4 weeks) 9,400

ESAMI programme I Z005/6

Environmental Audit2 Programme (Harare)

(4 weeks) 18,800

- ESAMI Programme 2 2005/6 -

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Reinforcement and Upgrade of Dar on Salaam, K liLanjaro and

Arusba Transmission and Distribution System

. Antidpated

S/N Proposed course/ training Number of costs

Partidpants Course Dates (USD)

Environment, Health &3 Safety Management and (2 weeks) 33,000

Substation work 30 2005/6

procedures seminar

TOTAL 61,200

4.0 Equipment and toolsMaterials and equipment requirements for smooth implementation f the proposed

Environmental Monitoring Program (EMP) and audits are as follows.

Costs

S/N Equipment/Tool Nos. (USD)

I Lap top computer 2 4,000

2 Colour Laser Printer 1 2,500

3 Digital camera 2 1,600

TOTAL 8,100

The total amount required for the year 2005/2006 is USD 69,300.

2

co Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Ar sha Transmission

and Distribution System

APPENbIX 06: Environmental Management System

(EMS) Project bocument

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TANZANIA ELECTRIC SUPPLY COMPANY LIM ED

PROPOSAL FOR DEVELOPING AND IMPLEMEN ING

ENVIRONMENTAL MANAGEMENT SYSTEM (EM ) INTANESCO

DRAFT PROJECT DOCUMENT

DIRECTORATE OF CORPORATE PLANNING AND RESEARCH

DEPT OF RESEARCH & DE FELOPMENTENVIRONM NTAL UNIT

May2oo5

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TABLE OF CONTENTS

EXECUTIVE SUMMARY .......................................... iv1.0 INTRODUCTION ..................................... ....... vi

1.1 GENERAL .......................... .................... vi1.2 PREVIOUS WORK ......................................... vii

2.0 PROJECT PURPOSES AND OBJECTIVES ................................ ,................ ..... .viii2.1 PROJECT PURPOSE ....................................... viii2.2 PROJECT OBJECTIVES ..................................... viii

3.0 PROJECT ACTIVMES, RESULTS AND MAIN ASSUMPTIONS .............. ................... ix3.1 PROJECT ACTIVITIES ............................................ ix3.2 PROJECT RESULTS ......................................... ix3.3 ASSUMPTIONS .......................................... x

4.0 WORK PLAN AND METHODOLOGY ................................ x4.1 GENERAL APPROACH ........................................ x4.2 DRAFTING OF CORPORATE ENVIRONMENTAL POLICY ....................................... x4.3 PLANNING FOR FULFILLING THE COMPANY POLICY .................................. ......... xi4.4 IMPLEMENTATION OF EMS ................ ................ .................. xii

5.0 PROJECT IMPLEMENTATION ............................. ...... xiii5.1 GENERAL ................................................ ..... xiii5.2 ORGANISATION AND ADMINISTRATION ................................. ................ xiii5.3 TRAINING ................................ .................xiv5.4 EQUIPMENT AND MATERIALS ................................ ................. xiv

6.0 BUDGET AND SCHEDULE ...................................... ... ,. .... xv6.1 BUDGET ............................... .......... xv6.2 SCHEDULE .............................. ...................................... ................... .................. xv

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LIST OF ANNEXES3I Research and Development Department Organisatio Chart

Budget and Financial Plan

I HSchedule for Developing and Implementing EMS in ANESCO

IV Training proposal

ACRONYMSDoE Department of Environment

EAMRDC East Africa Mineral Resources Development Ce tre

EIA Environmental Impact Assessment

EMS Environmental Management System

ESC Environmental subcommittee of the Southern A 'ricanPower Pool (SAPP)

WB World Bank

ICH International Centre for Hydropower

ISO International Standards Organisation

NEMC National Environmental management Council

NEP National Environmental policy

NGO Non Governmental Organisation

PFRP Pangani Falls Redevelopment Project

SAPP Southern Africa Power Pool

TANESCO Tanzania Electric Supply Company Limited

UDSM University of Dar es Salaam

ZESCO Zambia Electricity Supply Company

iI

EXECUTIVE SUMMARY

ES1: Introduction TANESCO is a public power utility in Tanzania re ponsiblefor generation, transmission, distribution and sale ofelectricity. Due to the nature of TANESCO's activiti s, thereare always impacts on or from the environme t, whichneed to be considered during operation and dev lopmentdecision-making processes.

There has been growing concern both nation lly andinternationally for full incorporation of envir nmentalprotection in decision-making processes for economicactivities. The approved National Environment I policy(NEP) and passed of the Environmental Manage ent Act,2005 (It is unified environmental legislation to eal withthe environmental issues). This Act is expected to becomeeffective any time in 2005. All these requir everydeveloper to achieve sustainable . developm nt thatmaximises the long-term welfare of both the pre ent andfuture generations of Tanzanian population.

In order to comply with relevant legal and re gulatoryrequirements, TANESCO Is in process of establi hing itsown Environment Management System (EMS). he EMSwill ensure that environment is given ap ropriateconsideration in all company development activ ies anddecision-making processes.

ES2: Objectives The following are the main project objectives:* To develop an appropriate corporate envir nmental

policy, objectives and targets* To develop a system that will ensure that there is

full integration of environmental considerati ns in allTANESCO's work and decision-making pro esses.

. To establish a system that will ensure ontinualimprovement of the environmental manag ment inTANESCO.

* To demonstrate to public that TAN SCO - isprotecting the environment in carrying out itsactivities.

Finandng It is proposed that part of the funds to be provid d byThe World Bank to finance the Transmission andDistribution Rehabilitation project (Dar es salaamKilimanjaro and Arusha) is to be used also to fina ce aprocess of establishing the EMS in Tanzania Elect icSupply Company Ltd (TANESCO).

I I.

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ES4: Budget The total project budget is Five hundred nd Ninethousands six hundred and twenty eight Unit d StateDallas (US$ 509, 628) spread over a span of 5 y ars. It isanticipated that about US$ 257,520 will be utilise in phaseI (first two years) and US$ 227,840 in phase II (the lastthree years). A contingency of US$24,268 Vas beenincluded in the budget to cater for unforeseen ex enditureand escalation.

ES5: Duration Five (5) years Phase I- drafting of company envir nmentalpolicy. Phase II Implementation of the envir nmentalpolicy

ES5: Implementers The project will be coordinated and execute by theTANESCO'S Research and Development Departrn nt underEnvironmental Section with assistance of Di ision ofEnvironment (DoE) and National Envir nmentalManagement Council (NEMC)) and individual outsideTANESCO will be fully utilised in conducting r ieetings,seminars and education campaign to TANESCO e iployees,local and foreign environmental consultants wherenecessary. The Environmental Section, which is nder theDirectorate of Corporate Planning and Research, as bothcapability and experience to carry out the work.

ES6: Project The following are the expected main project res Its:

Results * Approved company environmental policy. Environmental awareness to emplo ees to

understandthe environmental implications of their ad ionsI Changed organisational culture and attitud towardsenvironmental decision making processes

* An improved environmental accountability. An effective environmental inf rmation

management system* An effective and evolving EMS covering al aspects

ofTANESCO business, products and service

I

1.0 INTRODUCTION

1.1 GENERAL

The worldwide evolutions of stringent environmental regulations and pub ic awareness

have forced many organisations to integrate environmental managem nt into their

development activities and decision-making processes. Companies ha e introduced

environmental management policies, which encourage preventive measu es in order to

minimise corrective environmental costs, loss of public image and penal ies.

Achieving sound environmental performance requires organisational co mitment to a

systematic approach of addressing environmental obligations through Environmental

Management system (EMS). Environmental Management System (EMS) 1 i defined as a

system which includes organisational structure, planning of activities, re ponsibilities,

practices, procedures, processes and resources allocation for developing, i nplementing,

achieving, reviewing and maintaining the environmental policy.

An environmental management system form a framework within which t organise and

plan activities required to achieve environmental goals and objectives of he company.

It comprises guiding principles, policies, and directives, operational g idelines and

procedures that provide a structured format by which operations can be r aintained. It

is internationally accepted as a common sense approach to ensure that rganisational

environmental liabilities (and risks) are properly identified, minimised an managed.

TANESCO is a public utility, the only main company so far in Tanzania r sponsible for

generation, transmission, distribution and sale of electricity. The comp ny owns and

operates power systems comprising of both hydro and thermal power stations and

associated structures such as transmission & distribution lines, substat ons etc. The

power system network is distributed throughout the country and continue to expand to

meet ever-growing power demand. In the future, because of :echnological

advancement and increase in demand, TANESCO may resort to other sou ces of energy

such as coal, wind, solar etc.

Due to the nature of its operation and development activities, there are in pacts on and

from the environment, which have to be taken into account at all stages o such works.

Apart from generation, transmission and distribution, TANESCO i teracts with

environment through non-core services such as transportation of eq ipment and

materials, fumes, disposing of old equipment and papers etc. In doing its evelopment

'ISO 14004: Environmental Management Systems-general guidelines on principles, systems an supporting techniques

3 O(of .M. .-. .

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and operational obligations, TANESCO may therefore cause environmen I impacts to

air, water, land, natural resources, flora, fauna, humans and ecosystem. A nex I, shows

the linkage between TANESCO activities and environmental impacts.

TANESCO, like any other developer is obliged to adhere to the principles f sustainable

development by ensuring that environmental issues are not outweighed by economic

pressures. For that matter TANESCO has been spending substantial reso rces on EIAs

and monitoring of the projects impacts on or from the environment.

There are several set backs to the present TANESCO approach of a dressing the

environmental issues. Currently TANESCO has no established system fo dealing with

environmental matters within the company. Furthermore, the companr has neither

environmental policy nor environmental objectives. More usually, environmental

considerations are integrated in donor-funded projects, mainly in the lanning and

construction phase. Unless there is a direct environmental problem hin ering power

generation or there is a donor support, TANESCO does not bother mu h about post

construction phase environmental problems.

As a remedy to the above set backs, TANESCO is in process of es ablishing an

Environmental Management System (EMS). The EMS will form a frame ork through

which all environment matters will be fairly addressed and integrated i all company

business, services and products.

In the Southern Africa Power Pool (SAPP), of which TANESCO is a ember, the

Environmental subcommittee (ESC) has been formed to advise the rnanagement

committee on environmental issues, keep abreast of regional and world ;isues related

to environmental quality and also liase with their respective governmen s on matters

pertaining to environment. Some utilities in the region such as ESKOM o South Africa

and ZESCO of Zambia already have their own Environmental Managem nt System to

take care of the environmental matters and are in good position to cope well with the

new developments. The Environmental subcommittee (ESC) of the Sou hern African

Power Pool (SAPP) has conducted environmental workshops with the aim f improving

environmental awareness among the regional power utilities. TANESC as an active

member in the Southern African Power Pool (SAPP) has to keep pae with other

regional utilities by developing and implementing EMS.

1.2 PREVIOUS WORK

TANESCO recognised the importance of integrating of environmental con iderations in

its activities in 1996 when it formally accepted a proposal for an ENV ONMENTAL

MANAGEMENT SYSTEM prepared by the consultants for the PFRP, IVO- ORPLAN. In

April 1996, TANESCO In collaboration with NEMC organised a orkshop on

"ENVIRONMENTAL MATTERS RELATED TO POWER PRODUCTION IN NZANIA" at

Hale. At this workshop the then proposed TANESCO Environmental anagement

System (EMS) was discussed and its implementation recommended.

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TANESCO's Field Studies Unit by then now the Research and Developme t Department

In cooperation with IVO INTERNATIONAL of Finland prepared a d ailed project

document entitled: DEVELOPMENT OF ENVIRONMENTAL MANAGEMENT SYSTEM FOR

TANESCO in 1997 - 99, for soliciting of funds for implementation of EM . The project

never started, because 1996 was a bad financial year for TANESCO an FINNIDA did

not approve the requested fund.

Since then TANESCO tried to solicit funds from different donors and inter ally but up to

date no substantial amount of fund is provided. In 2001 during the Kiha si Spray Toad

saga the Lower Kihansi Environmental Project (LKEMP) financed by Aprid Bank set

aside US$ 65,000 to help TANESCO in the process of establishing its own EMS. So far a

study tour to ESKOM and ZESCO for 5 staff 1 from Kihansi Power Pla t and 4 from

Directorate of Corporate Planning and Research has been done, with ma n objective of

gaining a knowledge and experience on establishing and implementing a EMS in power

utilities.

This proposal therefore include foreign assistance, be it finance or t chnical, It is

proposed that financing is to be covered by the World Bank thro gh proposed

Transmission and Distribution Rehabilitation Project and the technica part will be

carried out by TANESCO staff in collaboration with local and foreign nvironmental

consultants as far as necessary. SAPP member utilities that have EMS riay be visited

and consulted for advice.

2.0 PROJECT PURPOSES AND OBJECTIVES

2.1 PROJECrPURPOSE

The main purposes of this work are:* To prepare the company environmental policy and set objectiv es and targets

* To establish a system within TANESCO that will ens re planning,

implementation, reviewing and continual improvement (i.e. E S).

2.2 PROJECT OBJECTIVES

The main objectives of this work are:* To establish a system that will ensure continual improve nent of the

environmental management in TANESCO.* To develop and establish an effective EMS within TANESCO* To ensure that there is full integration of environmental consid rations in all

work processes, planning and execution of all TANESCO activitie!.* To demonstrate to public that TANESCO is protecting the environm nt in carrying

out its activities.

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3.0 PROJECT ACTIVITIES, RESULTS AND MAIN ASSUMPTIONS

3.1 PROJECTACTIVITIES

The following are the main project activities:

PHASE I. Review of the existing environmental management practices TANESCO,

legislative and regulatory requirements. Review of the interaction of TANESCO activities and envi nment and

identification of significant environmental effectsDrafting of Corporate Environmental PolicySetting Objectives and targets, consistent with the environmental policy, which

quantify the commitment to continual improvement in e vironmental

performance over defined times scales. Definition of responsibilities to ensure that control, verification, rneasurement

and testing within the company & parts of the company are adequately

coordinated and effectively performed.

PHASEIICarrying out environmental awareness meetings and seminars

Developing procedures for monitoring and auditing to be carried out

Developing a system of records control to demonstrate complia nce with the

requirements of the environmental management system

. Developing procedures to communicate with interested partiec on matters

relating to TANESCO'S environmental management, policy and pe rformance.

* Facilitate planning, control, monitoring, auditing and review activi ies to ensure

that the policy is complied with and that it remains relevant and capable of

evolution to suit changing circumstances.* Initiate implementation of EMS

3.2 PROJECT RESUL TS

The following are the expected results of the work:* Approved company environmental policy and clear objectives and targets

* Environmental awareness to employees to understand the e ivironmental

implications of their actions and have skills to make the right deci Ions

* An effective and evolving EMS covering all aspects of TANES O business,

products and servicesI Environmental Management implementation structure and progra ns

* Changed organisational culture and attitude towards environmer ital decision-

making processes.* An improved environmental accountability

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. An effective system of planning, monitoring, auditing and reviewing of

environmental activities* An effective system of preventing non compliance* An effective environmental information management system* Appointed staff who is capable of dealing with environmental m ers

3.3 ASSUMPTIONSFor smooth execution of this work and achieving the intended results, the following

assumptions have been made:

The work will continue to enjoy full support from TANESCO top lanagement

Appointed and/or recruited staff will be capable and interested in his important

field* World Bank to finance the establishment of EMS

* Research and Development Department under Environmental Unit o co-ordinate

and execute this work

4.0 WORK PLAN AND METHODOLOGY

4.1 GENERAL APPROACH

In recent years, several organisations have developed, or are developing guidelines for

EMS. These include the British Standards Institute, Canadian Standards Association,

European Community ('Euro-Audit'), the Canadian Chemical Produceis Association

(Responsible Care Program), the Canadian Petroleum Association (Envirc nmental Code

of Practice) and the International Standards Association (ISO). Intemati al Standards

Organisation (ISO) has developed a series of environmental manag ment system

standards, which have been adopted by more than 100 countries worldw de as national

standards and have proved to be successful.

In establishing and implementing TANESCO EMS, recommendation contai ed in the ISO

14000 series will be followed, i.e. preparatory review, drafting f policy and

implementing the policy. Phase I of this work will consist of all activities f r establishing

the EMS i.e. preparatory review, drafting of the policy and planning fc fulfilling the

policy. Phase II will be an Implementation phase in which all planned a ivities will be

executed.

4.2 DRAFTING OF CORPORATE ENVIRONMENTAL POLICY

Because TANESCO does not have a formal environmental management sw stem, the first

step will be to establish the current position with regard to the environmental

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management by means of a preparatory review. The preparatory revie v will identifythe environmental aspects arising from the organisation's past, existing r planned ac-tivities, products or services. It will also examine all existing environmental managementpractices and procedures, legal requirements and previous incidents and non-compliance. The review will establish the main impacts due to TANESCO activities andthe current means of dealing with them. This will form a base for i entifying thepriorities to be addressed in the environmental policy. Few field trips o generatingstations, transmission and distribution lines, on going projects etc. wil be made toconfirm results of the review and to collect additional reports and inforn ation.

This work will involve drafting of an appropriate corporate environmenta policy that iscurrent and consistent with overall corporate priorities, managemen philosophy,practices and environmental legal requirements and obligations. It will in olve utilisingresults from the preparatory review and current guiding principle for impl mentation ofEMS. Since formulation of the corporate policy is the heart of the whole exercise, thethree months time will be allocated to the management to read and cor iment on thedraft environmental policy. The final policy statement and managemen commitmentstatement are expected to be ready in three months time after receivi g commentsfrom management.

Environmental Unit will do the preparatory review of drafting of corporate nvironmentalpolicy in collaboration with local or foreign consultant. Consultatio with otherstakeholder's i.e. government environmental bodies, NGO's, affected pe ples on someissues might be necessary.

4.3 PLANNING FOR FULFLLING THE COMPANY POLICY

For fulfilling the environmental policy, appropriate corporate environmen al objectivesand targets will be established and environmental programs (environn ental qualitycontrol, monitoring and auditing etc.) documents prepared. The ways f integratingenvironment management into the company structure will be chat ed out andresponsibility clearly defined. Approval of the management is required a this stage tomake sure that the proposal is acceptable and is not in any way conflic ing companystructure expansion plan.

Parallel to preparation of the environmental programmes, training nee s programs;schedules and budget will be established. It is expected that the traini g will targetthree groups; the management, Research and Development (Environme tal Unit) andgeneral staff, each category receiving training according to the role each roup plays inthe implementation of EMS.

Another important task to be accomplished in this phase is prepa tion of theenvironmental management system documentation, communication and r cords controlsystems. A two-way interactive information flow and reporting system, hich Involve

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input from each and every staff at his working station meanwhile allowin appropriatedata collection and analysis, interpretation and decision-making, will be c attered out.

For smooth implementation of the EMS, the training of management and key researchand development staff in environmental management will start in thi phase andextended through the implementation phase is important. Details on the trainingrequirements are presented in section 5.

A final draft EMS report will be submitted to the management for approval at the end ofthis phase. The draft report shall contain the corporate environmental polic y, objectives,targets, budget and schedule for implementation.

Planning and drafting of the environmental programmes will require inputs fromdifferent experts. It is therefore expected that in this phase extemal exp rtise, mainlyfrom UDSM, NEMC, DoE and appropriate NGOs will be required. The prog ammes needto be discussed in the workshops and comments incorporated prior to th ir adoption.

4.4 IMPLEMENTA TION OF EMS

The Implementation of the EMS will consist of all activities that will facilita integrationof environmental policies and programmes Into TANESCO strategic plans, ractices andactivities. The objective of this phase will be to align TANESCO structure employees,systems, strategies and resources allocation towards achievement Df companyenvironmental objectives. The main activities to be carried out under thi phase are:

Training, educating and motivating employees to conduct their a tivities in anenvironmentally friendly manner and aiming at achieving company e vironmentalobjectives, goals and targets. This will involve conducting e vironmentalmeetings and seminars for disseminating education and awarenes to TANESCOpersonnel in the head office and in the operation regions and distr , all hydroand thermal systems and transmission line teams around the cou try.

Follow up of allocation of appropriate human, material (facilities an Iequipment)and financial resources essential to the implementation f companyenvironmental policy and achievement of objectives.

Follow up of integration of EMS into existing overall managemen system andpractices, e.g. harmonising policies, influencing resources allocatio , operationalcontrols and documentation, information system, training and c evelopment,appraisal system, quality control, measuring and monitoring and co nmunicationand reporting. Assisting to balance and solve conflict between e vironmentalmanagement and other business objectives and priorities.

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* Follow up of effectiveness of environmental accountability along responsibilitylines, organisation structure, work processes and assignment of r sponsibilitiesto employees.

. To establish a process for communicating and reporting of nvironmentalactivities of the company in order to raise awareness to employees, communicatecompliance and demonstrate management commitment to environ nent. For this

purposes the following publications will be prepared, rganisation'senvironmental profile, environmental policy objectives and targets and

environmental performance evaluation.

5.0 PROJECT IMPLEMENTATION

5.1 GENERAL

TANESCO'S Research and Development under Environmental Unit will c -ordinate all

activities for development and implementation of EMS. Services of locc and foreign

consulting firms and competent institutions and bodies such as Univer ity of Dar Es

Salaam (UDSM), DoE, NEMC, NGO's and individuals will be utilised to pro ide expertise

not available in TANESCO and where outside opinions on specific issues re required.

It is anticipated that Services of local and foreign firms, NGOs, Division of Environment

(DoE) and National Environmental Management Council (NEMC)) and indiv duals outside

TANESCO will be fully utilised in conducting meetings, seminars a d education

campaign to TANESCO employees. This approach has many advantages; he main ones

being strengthening of local capacity, demonstrating due diligence and xposing the

TANESCO EMS early to criticism.

The whole project period is 5 years; the first 2 years will be utilised for dra ing the EMS

whereas the last 3 yrs will be for initiating of its implementation. The d aft final EMS

will be concluded by a review report explaining the achievements, setba ks, and what

need to be done to improve the EMS. The action plan and time-activity chedule are

presented in Annex II and III, respectively.

5.2 ORGANISA TION AND ADMINISTRA fON

The department of Research and Development, which, is under Directorate of Corporate

Planning and Research (DCPR) with the help of Environmental sectio will do the

execution of this work. The department is headed by a Manager and Chief ngineer and

it has another five informal sections; hydrology, survey, engineering geology and

geotechnics and hydropower engineering The main tasks of Research and evelopment

department, with others is dealing with environmental Issues related to t e company's

activities and to undertake and performing pre-feasibility and feasibilit studies for

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TANESCO's power projects, monitoring of company's civil structures, st pervision of

construction works and. Over the years a department has acquired outstanding

capability in terms of human resources, experience, skills, equipment ar d materials.

The organisation chart of Research and Development department is shown as Annex I.

A department of Research and development has resourceful personnel wit/ knowledge,

expertise and experience for execution of the work, but some addition I training is

required to strengthen their capability. The experts have had close coo eration with

foreign and local consultants.

Currently department of Research and Development with the help of envir nmental unit

is, on behalf of TANESCO, coordinating and carrying out the auditing o existing 18

substations to be rehabilitated and upgraded. Also it carries studies of et vironmental

and social impact assessment of transmission and distribution rehabilitatic n project for

Dar es Salaam, Moshi and Arusha to be financed by World Bank. It is iso working

closely with Lower Kihansi Environmental Management project (in coop eration with

NEMC). Further it does environmental planning and monitoring prog rammes for

transmission and distribution system.

5.3 TRAIINNGEssential to the functioning of the EMS is the staff awareness of environme ital issues to

enable them to carry out their daily activities appropriately. It is therefore mportant to

conduct relevant training to various groups depending on the role each g oup plays in

the implementation of EMS.

As stipulated in the previous proposals, an environmental awaren s seminar,

workshops and training to the management and the trainers is a prereq isite for the

successful implementation of the EMS in TANESCO. Short-term nvironment

management courses abroad are recommended for the TANESCO mana ment team

and environmental unit experts for raising awareness. It is anticipated hat courses

conducted by IHE Delft, Holland, IMAC and ACP Institutes Manzini Swazil Bnd, ESAMI,

ITC Holland, ICH of Norway are of meaningful and affordable. TANESCO st ould ensure

that executing staff, management and even operational staff attend thes X courses.

Trainers and facilitators need to be equipped with appropriate skills anc knowledge

either in Tanzania or abroad. The best option would be to have a trip In the region such

as South Africa and Zambia or other SAPP countries to learn from their ex erience. For

staff who are expected to be permanently engaged in environmental issue s, long term

courses abroad are recommended.

5.4 EQUIPMENTTAND MA TERIALS

Through TANESCO's major projects namely; PFRP, Kihansi and Power VI, Research and

Development department has acquired equipment for field studies and offic! works. The

available equipment are enough for carrying out site investigatior for dams,

transmission lines, substations and shallow foundations. Also water qualit analyses kits

have been acquired. But due to the age and new technology some of th equipmentslike Decibel Meter, Air quality equipment, PCBs test kits, GPS, Digital camera andEquipments to measure radiation from electromagnetic waves have to b bought.

Recently there is growing laboratory testing capacity in the country. Te ting facilities

available at UDSM, Maji, materials Ujenzi, EAMRDC and elsewhere wil be used for

testing the samples.

6.0 BUDGET AND SCHEDULE

6.1 BUDGET

The budget for developing and initiating implementation of the EMS s about four

hundred and seventy thousands US$ (US$ 509,628) as shown on Anne II.

6.2 SCHEDULEThe development of the EMS will take about 2 years and initiation of the in iplementationwill take about 3 years. The schedule is presented as Annex III.

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Activi Action Participnt Duration Results

Formulation of Develop environmental management programmes Env. Section 6 months Specific environmental objectives & targets.

plan to fulfil the to achieve objectives and targets -Environmental plans and management

environmental Establish procedure to identify, access, programmes with measurable performance

policy understand all legal, regulatory and other indicators and conditions of reviewing and

requirements revising.

Setting of overall goals for environmental-_ performance identified in the environmental policy

Formulation of -Identify the human, physical and financial Env. Section 4 months Human, physical (facilities & equipment) and

implementation resources for implementing EMS. financial resources and needs for

plan (aligning - Establish Strategy to obtain the required resource implementing EMS.

people, systems, from coy resource base and outsidestrategy,resources and -Establish plans and programs to integrate EMS in Plans to integrate policy and practices into

structure towards the company management system (sub-unit each business as an essential management at

achieving policies, resource allocation, operation controls & all levels

environmental documentation, information and support systems,4 objectives) training and development, organisation and Established chain of command so that

accountability structure, measuring and monitoringsystems communication and reporting etc.). ther Scope of teir rees are abccountabe with

-Establishing effective accountability andresponsibility-Develop plans for disseminating Environmental Identify knowledge, skills and training needs

awareness and motivation t to employee to achieve environmental objectives.

-Identify employees knowledge, skills and trainingrequirements to achieve environmental objectives Review of personnel selection and

recruitment targets and development of skills.

-Establish process to report intemally and extemally

-_ on environmental activities

Plan a system to manage, information identification,- storage, retrieval, and dissenination.

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Activity Action Participant Duration Results

S. Establish a system Establish a system for measuring actual Env. Section 3 months

of monitor and performance against the stated objectives and

evaluate targets. A system to ensure that the company is

environmental -Establish a system for evaluation of compliance performing in accordance with stated

performance with relevant legislation and regulations environmental management requirements

-Establish a system to ensure reliable data are

achieved

-to establish indicators which are objective,verifiable, reproducible, and consistent with policy,practical, cost-effective and technologically feasible.

-Establish a system for corrective and preventiveactions?

6. EMS records and Establish effective EMS records/information Env. Section 3 months Effective management of records (i.e.

information management identification, storage, retention and

management Establish system for environnental management disposition of EMS documentation and

system audits -Develop a procedure for receiving, records.

documenting and responding to relevant information

-_ and requests from Interested parties.

7. Implementation of Conducting seminars, environmental meetings Env. 3 yrs Systematic approach of addressing

EMS NGOS and implementing items 2-6 above Section/NEMC environmental issues (EMS)

- _ _ - , UDSM

8. Review of the Establish areas to be reviewed Env. Unit 3 months Evaluate a system for suitability and

environmental Set intervals for conducting a review /with NEMC, effectiveness.

management UDSM, NGOS Feedback mechanism to ensure that planning,

system and Establish experts involved In the review and constructon and operational activities and

improvement individuals programs are proceeding as required and

EMS is functioning the way it has been

-_ designed

*Note: Some activities on the action are overlapping and will be carried out concurrently.

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Annex 1: Organisation of the Department of Environment in the Directora e of

Corporate Planning & Research

DIRECTOR CORPORATE PLANNING & RESEARCH

| Manager Research & Development Manager CorporateI | Plannina

Chief Research & Investigations Chief EnvironmentalEngineer Engineer/Officer

IlSenior Environrnental Senior Enviror mental Engineer/Ofie

Engineer/Officer Environmen a/ Impact Assessmen

Monitoring & AuditI.Environmental Environrniental Environment Environmna

Experts Experts Experts Experts

Reinforcement and Upgrade Of Dar es Salaam, Kilimanjaro and Al usha Transmission

and Distribution System_________

3 APPENDIX 07: TERMS OF REFERENC E (TaR)

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Distribution and Transmission Rehabilitation Proj ctEEnvironmental Audit

Terms of Reference (TOR)

BackgroundTANESCO and the International Development Association are prepari g a distribution

rehabilitation project component as part of the Songo Songo Gas C velopment and

Power Generation Project (Credit 3569-TA). This component aims to improve the

reliability and the quality of power supply to the consumer. The projec will achieve the

following objectives:o Reducing the duration and frequency of power interruptio s

o Improving voltage conditions at consumers' premises

o Reduction of power system losses

The proposed project-would consist of rehabilitation of 18 existing subs ations in Dar es

Salaam, Arusha and Moshi. as follows:

Dar es Salaam Arusha

1. Oysterbay 11. Mount Meru

2. Mikocheni 12. Unga Ltd.

3. Msasani 13. Kiltex Ltd

4. Factory Zone 1 14. Themi

5. Factory Zone II 15. Njiro6. City Centre7. Factory Zone III Moshi8. Sokoine 16. Boma-Mbuzi

9. Kurasini 17. Lawate

10. Ilala 18. Kiyungi

Furthermore, there will be a repair and upgrading of the 11/33 kV distr bution systems

in Dar es Salaam, Arusha and Moshl. A summary of the physical cor ponents of the

project is provided in the table below.

Physical Description of Rehabilitation of Distribution Facilities

. Supply and Installation of 22 additional 15MVA, 33/1lkV transformers to relieve the lverload in existing

substations;

. Supply and installation of about 33 33/11kV circuit breakers; and some 124 11kV ci cult breakers with

associated switchboards;

I Installation of one 50MVA 132/33kV transformer with a circuit breaker at Kiyungl sub ation.

.Materials and equipment for repair/upgrading of the distribution systems which make provision for the

following: Reconductoring; Protection Systems; Autoreclosers Auto load brea switches; Scada

(distribution system); Sectionalizers; Boosters; Lightening protection; Distribution Transformers; New

33/1lkV lines; Statistical Metering. 1lage I ol 3 i

Objectives of the Environmental AuditThe objectives of this environmental audit are:

o To identify present environmental impacts and other environme tal inadequacles

on existing facilities. These include pollution, inadequat environmental

management practices, and occupational health and safety issu s in the facilities

to be rehabilitatedo To determine areas that need remedial actions and their potential costs

necessary to bring these facilities into compliance with World Bank Safeguard

Policies, ando To recommend actions to improve and strengthen TANESCO' environmental,

health and safety management

Guiding PrinciplesA consultant will carry out a comprehensive Environmental Audit ( ) in accordance

with and be fully responsive to IDA's "safeguard" operational policies nd according to

the existing laws and guidelines of the land (Tanzania). The audit report shall be

subject to review by a Multi Sectoral Technical Review Committee te m (TRC) under

the supervision of the National Environment Management Council (NEMC). Upon

acceptance by the TRC the audit document will be submitted to IDA i support of the

proposed project.

Scope of WorkThe environmental audit will focus on existing facilities to be rehabilitate J. The activities

of the audit will include:o Review of Tanzania's relevant existing and pending environm ntal legislation,

standards, and permits, as well as the country's occupational h alth and safety

legislationo Review the relevant policies of the World Bank and its environme tal, health and

occupational health and safety guidelines, including the Pollution Prevention and

Abatement Handbook (Electric Power Transmission and Dist ibution)l

o Review all relevant existing in-house documentation, includ ng compliance

records and historical informationo Meetings and consultations with TANESCO's facility manageme t and relevant

staff, relevant government and municipal/town authorities, environmental

experts, people leaving around the subject substations and other bodies deemed

necessaryo Perform visual inspections of the substation sites and eq ipment to be

rehabilitated

o Identify all environmental (e.g. presence of hazardous wastes such as PCBs,

water pollution, waste management practices, etc.) and occupati nal health and

safety concerns related to both, past and ongoing activities in th facilities to be

rehabilitated

This can bc found on the World Bank website www.woridbank.org,Plage 2 of 3

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o Assess hazards or risks for local communities and the adequacy f procedures for

warning and emergency responses (consult with commu ity leaders, if

appropriate)

o Prepare a prioritized list of concerns (i.e. high, medium, low) rel ted to past and

ongoing activities in the facilities to be rehabilitated

o Provide recommendations and cost estimates for the imple entation of the

required remediation action plan (work) and clean-up measur s for both past

and ongoing environmental and health and safety concerns In t e facilities to be

rehabilitated in relation to both, Tanzania and World Bank policie and standards

o Identify the capacity to monitor the execution of the remedia ion action plan

within and outside TANESCO and training needs to nsure efficient

implementation of the Environmental Management Plan

o Develop Environmental Management Plan for these substation which may be

further developed to be adopted to other substations

Reporting RequirementsThe draft environmental audit report should be prepared within 6 wee from the date

of study commencement (receiving the approved ToR from NEMC). he draft report

shall be submitted to NEMC and the World Bank for review and c mments. The

comments shall be received within 5 weeks from the date when the dr ft reports were

submitted. The final report, which Includes the comments from NEMC and the World

Bank, should be finished after one week from the date when the fina comments are

received. The report should be written in English, and should inclu an Executive

Summary and should contain relevant maps, The final draft report w I be final only

after the acceptance and approval by the Government of Tanzania ( EMC) and the

World Bank.

The report should contain a prioritized remediation plan if any, an Environmental

Management Plan (EMP) and the associated costs. The report should Iso define the

-institutional responsibilities for the remediation, implementation of EMP, monitoring and

for regular follow-up and the time frame.

Audit Team SkillsAn environmental audit team should have necessary auditing skills as v ell as in depth

knowledge of the environmental aspects of the electricity sector and -ompetence in

preparing environmental auditing.

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Reinforcement and Upgrade of Dar es Salaam, Kilim njaro and

Arusha Transmission and Distribution System Project

The Environmental Audit Study Team

1. John Lazimah (MSc. Environmental TA 4ESCO

Science) En ironmentalUnt

2. Mansur Hamduni (MSc. Environmental TA ESCO

and Water Resources Management) En ironmentalUn t

iMA 8 SIA First Dra R. April, 2003. Mansur hanedurn and Johii Iazinuh

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