Pars Oil & Gas Company

Pars Oil & Gas Company

Environmental Procedure

HEALTH, SAFETY AND ENVIRONMENT

PROCEDURE

DOCUMENT ID – PR-4142-POGC-001

REVISION - 00

ENVIRONMENT PROCEDURE

HSE DepartmentDocument ID.

PR-4142-POGC-001

Revision 00

Pages 60

ENVIRONMENTAL PROCEDURE

Document Authorization

Document Custodian Document

Authority/Owner Security Classification Document Type

HSE P.O.G.C Unrestricted Environment

Procedure

Approved By Document Author

M.Ansari HSE-E834820 HSE-E838815

HSE-E836183


PARS OIL & GAS COMPANY

June 2013- Environmental Procedure Page 1

Table of Content:

1. INTRODUCTION .................................................................................................................. 3

2- PURPOSE ............................................................................................................................... 3

3- SCOPE .................................................................................................................................... 3

4- APPLICABLE ENVIRONMENTAL REGULATIONS AND STANDARDS ................. 4

4-1 IRANIAN ENVIRONMENTAL REGULATIONS ........................................................................... 4

4-2 INTERNATIONAL REGULATIONS............................................................................................ 4

4-3 AMBIENT AIR QUALITY STANDARDS ..................................................................................... 4

4-4 SOURCE EMISSION STANDARDS ............................................................................................ 7

4-6 SOLID WASTE ..................................................................................................................... 19

4-8 PROTOCOLS AND CONVENTIONS ........................................................................................ 20

5- RESPONSIBILITIES .......................................................................................................... 22

5.1 SITE MANAGERS ........................................................................................................... 22

5.2 HSE MANAGER .................................................................................................................. 22

5.2 HSE OFFICER .................................................................................................................. 22

5.3 ENVIRONMENTAL ENGINEER (HSE/ENV) ........................................................................... 22

5.4 CONTRACTORS AND SUBCONTRACTORS OFFICIALS ......................................... 22

6- PROCEDURE ...................................................................................................................... 23

6-1-ONSHORE .......................................................................................................................... 23

6-1-1-Environmental objectives .......................................................................................... 23

6-1-2- Waste assessment ..................................................................................................... 23

6-1-2-1 Construction and commissioning phase .............................................................. 24

6-1-2-2 Operation Phase ................................................................................................... 28

6-1-3 Waste Management .................................................................................................... 33

6-1-3-1 Solid Waste management .................................................................................... 33

6-1-3-1-1 General .......................................................................................................... 34

6-1-3-1-2 HAZARDOUS WASTE MANAGEMENT Collection and handling ......... 35

6-1-3-1-3 NON- HAZARDOUS WASTE MANAGEMENT ...................................... 36

6-1-3-2 Wastewater management ..................................................................................... 36

6-1-3-3 Air Quality and emission ..................................................................................... 39

6-1-3-3-1 Ambient air quality standards ....................................................................... 39

6-1-3-3-2 Source emission standards ............................................................................ 39

6-1-3-3-3 Environmental design criteria in POGC projects ......................................... 41

6-2- OFFSHORE ...................................................................................................................... 43

6-2-1 OBJECTIVE .................................................................................................................. 43

6.2.2 Project description ...................................................................................................... 43

6.2.3 Potential ENVIRONMENTAL ASPECTS and relevant standards and regulations .. 44

6.2.3.1 Emissions To Air .................................................................................................. 44

6.2.3.2 Ambient Air Quality ........................................................................................... 44

6.2.3.3 Solid Waste .......................................................................................................... 44



6.2.3.3.1 Solid Waste Streams ................................................................................... 44

6.2.3.3.2 Waste Segregation and Storage ...................................................................... 46

6.2.3.3.3 Waste Transportation and Disposal ............................................................... 46

6.2.3.4 Liquid Waste ...................................................................................................... 47

6.2.3.4.1 Applicable Regulations .................................................................................. 47

6.2.3.4.2 Effluent Discharge Quality ............................................................................ 47

6.2.3.4.3 Liquid waste streams ...................................................................................... 47

7. REFERENCES ..................................................................................................................... 52

8. APPENDIXES & ATTACHMENTS .................................................................................. 53

SUGGESTION FORM



1. INTRODUCTION

Pars Oil and Gas Company (POGC), a subsidiary of National Iranian Oil Company (NIOC),

was established in 1998. POGC is a developmental and manufacturing organization that

specializes in the fields of engineering and management of development projects,

production, operation and integrated management of oil and gas reservoirs. POGC‟s

mission is to ensure sustainable and preservative production and development of Iran‟s oil

and gas industry in the areas under its responsibility, development of oil and gas value chain

as well as optimization of energy supply processes at national, regional and international

levels. POGC is also in charge of development of joint and non-joint oil and gas fields of

the country including South Pars, North Pars, Golshan and Ferdowsi.

Aimed at creating superior value and boosting the level of satisfaction of the beneficiaries

and with an approach focusing on sustainable, integrated and knowledge-oriented

production and development, the company feels committed to comply with national and

international requirements, regulations and standards in such areas as quality, safety, as well

as occupational and environmental health.

2- Purpose

The purpose of this Document is to outline the minimization of environmental impacts and

the integration of environmental protection of Pars Oil & Gas Company Projects. An

additional purpose is to promote an awareness of waste minimization through the efficient

and economic use of materials.

POGC will take all necessary measures associated with the performance of the WORK to

protect the ENVIRONMENT. In this regard the purpose of this document is to describe

Project Environmental Management System (EMS). The Document is established to

identify, consider and implement all environmental requirements of the CONTRACT

during all stages of the project including activities such as construction, pre-commissioning,

commissioning, start up and production periods. This system is a part of the Project HSE

Management System. Periodic reviews and updating of this document shall be carried out

during the project life cycle to modify and incorporate better environmental methods.

3- Scope

This document will apply to the entire POGC Projects and activities during all stages of the

project including construction, pre-commissioning, commissioning, start up and production.



4- APPLICABLE ENVIRONMENTAL REGULATIONS AND STANDARDS

In this document, a review of applicable Iranian environmental regulations and standards was

carried out. In addition, applicable international guidelines and standards were reviewed to

complement the Iranian regulations.

The governing body for environmental protection and management is the Iranian Department of

Environment. All project activities must be based and planned on the latest revision of local ,

national and international conventions, regulations, protocols and standards.

Based on project contracts, Environmental Impact Assessment shall be provided for each project by

contractors.

4-1 Iranian Environmental Regulations

The main framework for environmental management in Iran is laid out in the Constitution of the

Islamic Republic of Iran; specifically Articles 45 & 50. Article 45 focuses on the protection and

management of natural resources such as soil, water, forests and range lands; while Article 50

declares protection of the environment in general.

The rules and measures for the protection and management of the environment are specified in the

Iranian Environmental Protection and Enhancement Act, 1974. Other relevant and applicable

legislations are as follows:

Law of Protection of the Sea and Internal Water Bodies Against Oil and Oil-products Pollution

(1975);

Law of Environmental Protection against Water Pollution (1984);

Law of Environmental Protection and Development (1991); and

Law of Protection against Natural Environmental Damages (1991).

Specific applicable standards are detailed in the relevant sections of this document.

4-2 International Regulations

The International Finance Corporations and World Bank Group have developed specific guidelines

for offshore oil and gas development titled „Environmental, Health and Safety Guidelines: Offshore

Oil and Gas Development‟. This guideline includes information relevant to seismic exploration,

exploratory and production drilling, development and production activities, offshore pipeline

operation, offshore transportation, tanker loading and unloading, ancillary and support operations,

and decommissioning. The applicable standards and best practices related to air emissions,

wastewater discharge, solid and liquid waste management, noise generation and spills are discussed

in this document within the relevant sections.

4-3 Ambient air quality standards

Atmospheric emissions will mainly be generated from combustion emissions associated with diesel

generators, from flaring, venting and from fugitive emissions from diesel tanks. Well fluid disposal

during drilling shall be burned in the liquid burner and well testing shall be returned to the

production line after testing.



The required ambient air quality standards for the Project are given in Table 4-1. These follow the

Department of the Environmental Regulations and Standards.

Air dispersion modelling will be based on the input data used in the phase‟s analysis as stated in

Table 4-1.

Table 4-1 Ambient Air Quality Standards (reference Department of the Environment Environmental Regulations

and Standards)

Pollutant Averaging period

Concentration (microgram/m³)

Primary Values Secondary Values

Carbon Monoxide

Maximum 8 hour average 10,000 (1)

10,000 (1)

Maximum 1 hour average 40,000 (1)

40,000 (1)

Sulphur Dioxide (SO2)

Annual average 80 60

Maximum 24 hour average 365 (1)

260 (1)

Maximum 3 hour average - 1,300 (1)

Hydrocarbons except methane Maximum 3 hour average 160 (1)

160 (1)

Oxides of Nitrogen (as NO2)


Maximum 24 hour average 150(2)

-

Particulates (PM10)


Maximum 24 hour average 260 (1)

150 (1)

Photochemical Oxides Maximum 1 hour concentration 160 (1)

160 (1)

Hydrogen Sulphide (H2S) Maximum at site boundary 5 (3)

-

NOTES:

(1) Not to be exceeded more than once a year.

(2) World Health Organisation Standard.

(3) Value for hydrogen sulphide at plant boundary obtained from the World Bank Pollution Handbook.



Standards were formulated based on WHO guidelines are shown in Table 4-2.

.

Table 4-2 WHO Ambient Air Quality Guidelines

Parameter Guideline value in μg/m3 Averaging Period

Sulphur dioxide (SO2) 125 (Interim target -1)

50 (Interim target -2)

20 (guideline)

24 hour

500 (guideline) 10 minute

Nitrogen dioxide (NO2) 40 (guideline)

200 (guideline)

1-year

1-hour

Particulate Matter (PM10) 70 (Interim target -1)



20 (guideline)




50 (guideline)

1 year

24 hour

Particulate Matter (PM2.5) 35 (Interim target -1)



10 (guideline)



37.5 (Interim target -3)

25 (guideline)

1 year

24 hour



Parameter Guideline value in μg/m3 Averaging Period

Ozone 160 (Interim target -1)

100 (guideline)

8 hour daily maximum

Carbon Monoxide 100mg/m3

60mg/m3

30mg/m3

10mg/m3

15 minutes

30 minutes

60 minutes

8 hours

Hydrogen Sulfide 150µg/m3 24 hours

Hydrocarbons (except

CH4) 160µg/m

3 Maximum 3 hours*

Source: World Health Organization (WHO). Air Quality Guidelines Global Update, 2005.

Note: 1. PM 24-hour value is the 99th percentile.

2. Interim targets are provided in recognition of the need for a staged approach to

achieving the recommended guidelines.

3. * Maximum concentration not to be exceeded more than twice/month.

4-4 Source emission standards

Emission standards for discharge from point sources

Source emission standards exist for controlling emissions to air from point sources.

Table 4-3 states the Project standards for emissions to air from point sources. These have been

obtained from Iranian Petroleum Standard IPS-E-SF-860.

Table 4-3 Emission Standards for Discharge from Point Sources

(reference Iranian Petroleum Standard IPS-E-SF-860)

Pollutant Emission Limit

Sulphur Dioxide (SO2) 800 ppm

Hydrogen Sulphide (H2S) 6.62 ppm (10 mg/m3)

Oxides of Nitrogen (as NO2) 210ppm (432 mg/m3)

Particles 50 mg/m3

Carbon monoxide (CO) 150 ppm

Hydrocarbons 20% opacity



Iran utilized the World Bank air quality guidelines to manage air quality. The applicable

industrial emission guidelines from the World Bank Group are provided in Table 4-4.

Gas emissions produced by the combustion of gas or liquid fuels in turbines, pumps and other

engines for power and heat generation, or for water injection or oil and gas export, can be the

most significant sources of air emissions from offshore facilities.

Table 4-4 Gaseous emissions standards

Combustion

Technology/ Fuel

Particulate Matter

(PM)

Sulphur Dioxide

(SO2)

Nitrogen Oxides

(NOx)

Dry Gas, Excess

O2 Content

Engine

Gas N/A N/A

200 mg/Nm3 (Spark

Ignition)

400 mg/Nm3

(Dual Fuel)

1,600 mg/Nm3

(Compression

Ignition)

15%

Liquid

50 mg/Nm3 or up to 100

mg/Nm3 if justified by

project specific

considerations (e.g.

economic feasibility of

using lower ash content,

or adding secondary

treatment to meet 50

mg/Nm3, and available

environmental capacity

of the site)

1.5% Sulphur or up

to 3.0% Sulphur if

justified by project

specific

considerations (e.g.

economic feasibility

of using lower

Sulphur content fuel,

or adding secondary

treatment to meet

levels of using 1.5%

Sulphur, and

available

environmental

capacity of the site).

If bore size (mm)

<400:1,460 (or up to

1,600 mg/Nm3 if

justified to maintain

high energy

efficiency.)

If bore size (mm)

≥ 400:1,850

15%

Turbine

Natural Gas

=3MWth to

<15MWth

N/A N/A

42 ppm (electric

generation)

100 ppm (mechanical

drive)

15%

Natural Gas N/A N/A 25 ppm 15%



Combustion

Technology/ Fuel

Particulate Matter

(PM)

Sulphur Dioxide

(SO2)

Nitrogen Oxides

(NOx)

Dry Gas, Excess

O2 Content

=15MWth to

< 50MWth

Fuels other than

Natural Gas

=3MWth to

<15MWth

N/A

0.5% Sulphur or

lower percent

Sulphur (e.g. 0.2%

Sulphur) if

commercially

available without

significant excess

fuel cost.

96 ppm (electric

generation)

150 ppm (mechanical

drive)

15%

Fuels other than

Natural Gas

=15MWth to

<50MWth

N/A

0.5% Sulphur or

lower % Sulphur

(0.2% Sulphur) if

commercially

available without

significant excess

fuel cost.

74 ppm 15%

Boiler

Gas

N/A N/A 320 mg/Nm3 3%

Liquid



environmental

assessment.

2,000 mg/Nm3 460 mg/Nm3 3%

Solid



environmental

assessment.

2,000 mg/Nm3 650 mg/Nm3 6%

Source: Environmental, Health and Safety (EHS) Guidelines by International Finance Corporation and

World Bank Group, 2007.

Notes: 1. N/A – no emission guideline

2. Higher performance levels than in the table should be applicable to facilities located in

urban/industrial areas with degraded air sheds or close to ecologically sensitive areas

where more stringent emission controls may be needed.

3. MWth is heat input on HHV basis.



4. Solid fuels include biomass

5. Nm3 is at 1 atmosphere and 0 °C.

6. MWth category applies to the entire facility consisting of multiple units that are reasonably

considered to be emitted from a common stack except for NOx and PM limits for turbines

and boilers.

7. Guideline values apply to facilities operating more than 500 hours per year with an annual

capacity utilization factor of more than 30%.

Iran is also party to MARPOL and as such is required to comply with MARPOL standards. Annex VI

of MARPOL regulates three types of air emissions namely NOx, SOx and ozone depleting substances.

The standards are tabulated below.

Table 4-5 MARPOL Air Emissions Standard

Parameter Standard

NOx

Engine Speed (n,rpm) g/kWh

n < 130 rpm 17.0

130 rpm ≤ n < 2000 rpm 45 · n-0.2

n ≥ 2000 rpm 9.8

SOx

Sulphur content of fuel oil Global cap of 4.5% 1.5% (m/m)

Ozone Depleting Substances (ODS)

ODS including halons and chlorofluorocarbons (CFCs) New installations containing ODS are prohibited on

all ships.

New installations containing hydro-

chlorofluorocarbons (HCFCs) are permitted until 1

January 2020.

Annex VI also prohibits the incineration on ships of certain products, such as contaminated packaging

materials and polychlorinated biphenyls (PCBs).

4-5 Effluent discharge limitation (liquid spill and effluent )

All industrial complexes which produce waste water with higher quantities of pollutants than those

above the National Standard of Environmental Protection Agency of Islamic Republic of Iran

should have waste water treatment facilities before the final release to the environment. The

effluent standards for direct discharge are reported in Table 4-6. Table 4-6 lists the limit values for

wastewater characteristics prior to be discharged.

Dilution of a waste water discharge shall not be used to meet effluent discharge limitations.

The use of pond for untreated wastewater is allowed only by the permission of National

Environmental Protection Agency of Iran.



Table 4-6 Draft Iranian effluent discharge

Substance

Surface water (mg/l)

Agriculture and

irrigation use

Soakaway well

(mg/l)

Al 5 5 0.1

Ag 1 0.1 5

As 0.1 0.1 0.1

Bo 2 1 1

Ba 5 1 1

Be 0.1 0.5 1

Ca 75 - -

Cd 0.1 0.05 0.1

Cl 1 0.2 1

Cl- ( 1 ) 600 600 600(6)

CH2 O 1 1 1

C6 H5 OH 1 1 Petty(trace)

CN 0.5 0.1 0.1

Co 1 0.05 1

Cr VI 0.5 1 1

Cr III 2 2 2

Cu 1 0.2 1

F 2.5 2 2

Fe 3 3 3

Hg Under limit Under limit Negligible

Li 2.5 2.5 2.5

Mg 100 100 100

Mn 1 1 1

Mo 0.01 0.01 0.01

Ni 2 2 2

NH4 2.5 - 1

NO2

10

- 10

NO3

50

- 10

Phosphates/phosphorou 6

- 6



Pb

1

1

1

Se

1

0.1

0.1

H2 S

3

3

3

SO3

1

1

1

SO4

( 1 ) 400

500

400(6)

V

0.1

0.1

0.1

Zn

2

2

2

Oil and Grease

10

10

10

Detergent (ABS)

1.5

0.5

0.5

BOD5

30 (50) (*)

100

30(momentarily(100))

COD

60 (100) (*)

200

60(momentarily(100))

DO

2

2

-

Total diss. Salt(TDS)

(1)

-

(6)

Tot susp. Solids(TSS)

40 (90) (*)

100

-

Soluble salt

0

0

-

pH

6.5 – 8.5

6.0 – 8.5

5-9

Radioactivity

0

0

-

Turbidity

50

50

-

Colour

85

85

75

Temperature

(3)

-

-

Faecal Coliforms( /10ml)

400

-

400

Nematodes

-

4

-

Total coliforms

1000

1000

1000

Notes (*)

:The concentration in () is the value accepted for peak; (1)

:Concentration < 10% after 200 m of the discharge

point; (2)

:Concentration < 10% of their standards; (3)

:The temperature increase of the water must be less than 3<°C after

200 m from the discharge point; (4)

:The number of nematodes for the ultimate purpose of irrigation of products which are

used in the raw form ,should not be more than 1 nematode per lit. (5)

:Not more than 1 of potable water. (6)

: Not more than

10% of potable water.



The above limits have been obtained from-“Extract of rules and regulations for the protection of the

environment practice and standards applicable for Oil industry”

prepared by the Ministry of Petroleum

Department of Environmental Protection – 1997.

The reference waste water concentration limits to be applied for the South Pars project are those

referred to the direct discharge to surface waters (e.g. river, channel, sea).

The effluent standards for industrial waste listed in the IPS standard are similar to those detailed in the

above table for most components. In the IPS Standard it is highlighted that any modification of the

limits set by the National Environmental Protection Agency of Iran (Table 1-4) shall automatically

apply also to the limits detailed in the IPS standard.

Tables 4-7 details the limits for the main waste water characteristics as detailed in the following

standards:

Draft Iranian Standards

IPS;

World Bank

Table 4-7 Summary of main wastewater concentration limits

Effluent

characteristic

Draft Iranian

Surface water

IPS

Surface water

World Bank

mg/l Kuwait

TSS

(90) 40*

(60) 40 *

35 60

PH

5-9

6.5-8.5

6-9 6-9

Oil and grease

-

10

10

40ppm

(monthly

average)

BOD5

(50) 30*

50

50 -

COD

(100) 60*

100

125 -

TSS

(90) 40*

(60) 40 *

35 60

*The concentration in () is the value accepted for peak.

The limits to be applied to the waste water shall be those as detailed in table 4-6 with the exception of

those highlighted in table 4-7.



Table 4-8 Summary of water quality standards for the Once-trough Sea Water discharges

Parameter

Limit

Temperature differential

3°C (°°)

Floating materials

Non visible

Chlorine residual

0.2 mg/l (°)

Dissolved Oxygen

2

(°) - World Bank Handbook 2005

(°°) - The effluent should result in a temperature increase of no more than 3°C at the edge of the zone where initial

mixing and dilution take place (after 200 m from the discharge point)

Table 4-9 Indicative values for treated sanitary sewage discharges

Pollutants Units Guideline Value

pH - 6 - 9

BOD mg/l 40*

COD mg/l 125

Total nitrogen mg/l 10

Total phosphorus mg/l 2

Oil and grease mg/l 10

Total suspended solids mg/l 80*

Total coliform bacteria b MPN /100 ml 250a*

Source: Environmental, Health and Safety (EHS) Guidelines by International Finance Corporation and

World Bank Group, 2007.

Note: 1. a Not applicable to centralized, municipal, wastewater treatment systems which are included

in EHS Guidelines for Water and Sanitation.

2. b

MPN = Most Probable Number

3. * Complied with project specification



Table 4-10 Concentration limit prior to discharge of effluents to clean surface water (sea)

Components Concentration

Silver (Ag) 1 mg/l

Aluminium (Al) (total) 5 mg/l

Arsenic (As) (total) 0.1 mg/l

Boron (B) 2 mg/l

Barium (Ba) 5 mg/l

Beryllium (Be) 0.1 mg/l

Calcium (Ca) 75 mg/l

Cadmium (Cd) 0.1 mg/l

Free Chlorine (Cl) 1 mg/l

Chlorine (Cl) 600 mg/l

(Discharge of higher concentration will only be permitted if

chloride of the receiving water does not increase more than

10% at a radius of 200 meters distance.)

Formaldehyde (CH2O) 1 mg/l

Phenol (C5H5OH) 1 mg/l

Cyanide (CN) 0.5 mg/l

Cobalt (Co) 1 mg/l

Chromium 6+ (Cr VI) 0.5 mg/l

Chromium 3+ (Cr III) 2 mg/l

Copper (Cu) 1 mg/l

Fluorine (F) 2.5 mg/l

Iron (Fe) 3 mg/l

Mercury (Hg) Trace

Lithium (Li) 2.5 mg/l

Magnesium (Mg) 100 mg/l

Manganese (Mn) 1 mg/l

Molybdenum (Mo) 0.01 mg/l

Nickel (Ni) 2 mg/l

Ammonium (NH4) 2.5 mg/l




Nitrite (NO2) 10 mg/l

Nitrate (NO3) 50 mg/l

Phosphate 6 mg/l

Lead (Pb) 1 mg/l

Selenium (Se) 1 mg/l

Sulphide Hydrogen (H2S) 3 mg/l

Sulfite (SO3) 1 mg/l

Sulfate (SO4)

400 mg/l


sulphide of the receiving water does not increase more than

10% at a radius of 200 meters distance.)

Vanadium (V) 0.1 mg/l

Zinc (Zn) 2 mg/l

Fat Oil 10 mg/l

Detergent ABS 1.5 mg/l

Chemical Oxygen Demand (COD) 60 mg/l (100mg/l value accepted for peak)

Dissolved Oxygen (DO) 2 mg/l (minimum)

Total dissolved solids (TDS)* 2,000 mg/l


the dissolved material of the receiving water does not

increase more than 10% at a radius of 200 meters distance.)

Total suspended solids (TSS) 60 mg/l

Sedimented Substances 0 mg/l

pH 6-8.5

Radioactive material 0 mg/l

Darkness (unit of darkness) 50

Dye (unit of dye) 75

Temperature

Temperature should be kept in a range that does not increase

the temperature of the receiving water to more than 3 °C at a

radius of 200 meters.

Digestion Coliform 400 ml




Total Coliform 1,000 ml

Biological Oxygen Demand 5 (BOD5) 30mg/l (50mg/l value accepted for peak)

Parasitic Worm Eggs (nematode) (n/1000ml) 1/1000ml

Digestion Coliform (n/100ml) 6.5 – 8.5

Total Coliform (n/100ml) 1000/100ml

Hydrocarbons

- offshore

- offshore machinery space effluent#

30 mg/l

15 mg/l

Source: 1. Environmental Regulations and Standard by DOE Iran, 2002.

2. * Iranian Standards in Assaluyeh.

3. #

MARPOL Protocol.

The liquid effluents from the platforms shall meet the environmental, health, and safety guidelines

for offshore oil and gas development by the International Finance Corporation and the World Bank

Group, 2007 (Table 4-11).

Table 4-11 Environmental, health and safety guidelines for effluent discharge

Parameter Guidelines

Drilling Fluids and Cuttings -

NADF

1. Non-Aqueous Drilling Fluids (NADF)

re-inject or ship to shore, no discharge to sea

2. Drill cuttings – re-inject or ship to shore, no discharge to sea except:

oil concentration lower than 1% by weight on dry cuttings

mercury (Hg) – maximum 1mg/kg dry weight in stock barite

cadmium (Cd) – maximum 3mg/kg dry weight in stock barite

discharge via a caisson at least 15m below sea surface

Drilling fluids and cuttings -

WBDF

1. Water-Based Drilling Fluids (WBDF)

re-inject or ship to shore, no discharge to sea except in compliance with 96

hr. LC-50 of SPP -3% vol. toxicity test first for drilling fluids or

alternatively testing based on standard toxicity assessment speciesa

(preferably site-specific species);

2. WBDF, fluids and cuttings – re-inject or ship to shore, no discharge to sea

except:

mercury (Hg) - 1mg/kg dry weight in stock barite



Parameter Guidelines

cadmium (Cd) - 3mg/kg dry weight in stock barite

maximum chloride concentration must be less than four time‟s ambient

concentration of fresh or brackish receiving water

discharge via a caisson at least 15m below sea surface

Produced water Re-injection. Discharge to sea, maximum one day oil and grease discharge should

not exceed 42 mg/l; 30 day average should not exceed 29 mg/l.

Completion and Well Work –

over fluids

Ship to shore or re-inject. No discharge to sea except:

maximum one day oil and grease discharge should not exceed 42

mg/l; 30 day average should not exceed 29 mg/L

neutralize to attain a pH of 5 or more

Produced Sand Ship to shore or re-inject. No discharge to sea except when oil concentration lower

than 1% by weight on dry sand.

Hydrotest water

Send to shore for treatment and disposal. Hydrotest

water will discharge offshore by following the environmental risk analysis

procedure and careful selection of chemicals used. If possible, reduce the use of

chemicals.

Cooling water

Discharge should result in a temperature increase of more than 3°C at the edge of

the zone where initial mixing and dilution take place. Where the zone is not

defined, use 100m from point of discharge.

Desalination Brine Mix with other discharge waste streams if feasible.b

Sewage Compliance with MARPOL 73/78b

Food waste Compliance with MARPOL 73/78b

Storage displacement water Compliance with MARPOL 73/78b

Bilge water Compliance with MARPOL 73/78b

Deck Drainage (non-

hazardous and hazardous

drains)

Compliance with MARPOL 73/78b

Source: Environmental, Health, and Safety Guidelines Offshore Oil and Gas Development by International

Finance Corporation and World Bank Group, 2007

Notes: 1. a 96hr LC-50. Concentration in parts per million (ppm) or percent of the Suspended Particulate

Phase (SPP) from sample that is lethal to 50 percent of the test organism exposed to that

concentration for a continuous period of 96 hours.

2. b In nearshore waters, carefully select discharge location based on environmental sensitivities and

assimilative capacity of receiving waters



4-6 Solid waste

The Kuwait Convention, 1978 specified an operational standard on discharging waste as

tabulated in Table 4-12.

Table 4-12 Kuwait Convention 1978 - Operational discharge standards

Legal basis Produced

water

Oily cuttings Chemicals Sewage/ garbage

Kuwait Convention 1978a

Kuwait Protocol

1989 Articles IX, X,

XI

Average 40 mg/l

(Maximum. <

100 mg/l), 15

mg/l limit for

machinery

drainage.

Oil

contamination

minimization

required.

Chemical use plan

required.

Prohibited < 4 n.m.

from the coast.

Untreated discharge

permitted >12 n.m.

Disposal of garbage

restricted.

International Convention for the Prevention of Pollution From Ships, 1973b

Annex V of

MARPOL 73/78

(including

amendments)

Regulations for the

Prevention of

Pollution by

Garbage from Ships

- - -

A record is to be kept

of each discharge or

completed

incineration. This

includes discharges at

sea, to receiving

facilities, or to other

ships.

See Appendix 1 for all

example of the Form

of Garbage Record

Book.

Source: aEnvironmental Management in Oil & Gas Exploration and Production by UNEP.

bMARPOL 73/78 Consolidated Edition 2002.



4-8 Protocols and Conventions

Iran has ratified a number of international conventions and protocols. The treaties objective and project

relevance are tabulated in Table 4-13.

Table 4-13: List of treaties participated by Iran

Treaty Objective and participation Project Implications

Kyoto Protocol To reduce greenhouse gases causing climate change. As

Iran is a developing nation, it is not required to commit to

any reduction targets.

Appropriate measures to

reduce greenhouse gases

(GHG) emissions are

encouraged.

Montreal Protocol on Substances

That Deplete the Ozone Layer

To reduce the use of gases those cause damage to the

ozone layer.

Commitment to not use

ozone depleting substances.

Basel Convention on the Control

of Tran boundary Movements of

Hazardous Waste and Their

Disposal

To protect human health and the environment against the

adverse effects resulting from the generation,

management, Tran boundary movement and disposal of

hazardous and other waste.

Iran joined in the following consensus decisions:

Ban Decision II/12 (all exports of hazardous

waste from Organization of Economic

Cooperation and Development (OECD) to

non-OECD countries);

Ban decision III/1 (to ban exports of hazardous

waste to all countries not listed on Annex VII);

and

National Waste Trade Agreements.

Export of hazardous waste

generated as part of the

project is restricted.

MARPOL - International

Convention for the Prevention of

Pollution From Ships, 1973 as

modified by the Protocol of 1978

The MARPOL convention is an International Convention

for the Prevention of Pollution from Ships, 1973, which

aims at prevention of pollution of the marine environment

by ships from operational or accidental causes. Iran is one

of 136 countries party to the convention regarding the

prevention. MARPOL contains 6 Annexes, concerning

with preventing different forms of marine pollution from

ships, namely:

Annex I - Oil

Annex II - Noxious Liquid Substances carried

in Bulk

Annex III - Harmful Substances carried in

Packaged Form

Annex IV - Sewage

Specific standards required

to comply with. Standards

are provided in the

following sections.



Treaty Objective and participation Project Implications

Annex V - Garbage

Annex VI - Air Pollution

Kuwait protocol - Convention to

Cooperate on Protection of

Marine and Onshore Areas

Against Pollution – Kuwait, 1978

and its corresponding protocols.

The aim of the protocol is to protect the marine

environment against pollution from onshore and offshore

sources.

Specific standards need to

be complied with. These

standards are given in the

following sections.



5- RESPONSIBILITIES

In general, as a policy, each operational unit of EPC contactor, as a waste producer and / or

Waste handler, will have an active and responsible role in the Waste Management Plan:

5.1 SITE MANAGERS

Site Managers are responsible for issuing and controlling the adherence to a proper waste

management activity based on the contents of the present Waste Management Plan.

5.2 HSE Manager

POGC HSE Manager is responsible for issuing and inspecting Supervising and monitoring of correct

implementation of whole E.M.S. via main and subcontractor

5.2 HSE OFFICER

HSE Officer is responsible for inspecting and surveying for the presence of obviously unwanted

waste materials.

5.3 Environmental Engineer (HSE/Env)

The Environmental Engineer is in charge of assisting the HSE Manager in the implementation of the

whole E.M.S. In particular he will;

Assess regularly the national regional and international,

Prepare the training and awareness programs,

Prepare the E.M.S documentation, update and review when required,

Set up a monitoring program in order to assess the performance

Prepare audit, identify and implement corrective actions maintain records, and Prepare the

management review.

5.4 CONTRACTORS AND SUBCONTRACTORS OFFICIALS

Officials of contractors in the construction site (site manager or HSE officer) are responsible for

housekeeping ,segregation of wastes , and conveying waste disposal.



6- Procedure

6-1-Onshore

6-1-1-Environmental objectives

This procedure should be implemented to address significant environmental factors, to including the

following:

• Solid Waste management

• Wastewater management

• Air Quality and emission management

In addition, this procedure is intended to fully satisfy all the relevant policies and laws of Iran and t he

in te rna t ional environmental communi ty . Corrective a c t i o n should be taken, a s

necessary, to improve environmental performance to meet these requirements.

6-1-2- Waste assessment

The following chapter lists the solid and liquid waste expected to be produced by POGC projects during

construction, pre-commissioning, commissioning and norma l operations, based on information

provided by engineering specialists.

An inventory of the solid waste products and a proposed disposal/ recycle policy is detailed. In addition a preliminary assessment has been made of the types of waste generated in

construction and their quantities.

For each (main) waste produced during this phase the following are identified:

Typology

Sources

Description

Estimated Quantity

Change frequency

Waste classification/Disposal

All wastes should be categorized in to one of the following classes which generally correspond to three

different disposal sites:

- Hazardous Wastes- Wastes which are ignitable, corrosive, explosive, toxic, oxidizing, etc. which

constitute a high degree of hazard to public health or the environment.

- Non-inert Wastes- Wastes which are biologically or chemically active in the environment. This

class includes industrial and municipal waste.

- Inert Wastes- Wastes which are not biologically or chemically active in the environment (e.g.

broken glass, brick materials, concrete, most plastic product) It should be noted that hazardous waste shall be handled with particular care and disposed of in

landfills with a high degree of security with regard to preventing escape of pollutant. Therefore it is



Waste Type

Source

Description Estimated

Amount Waste

Classification Possible (°)

Disposal Site

Medical

wastes

Medical

facilities

Sanitary waste,

medicines, etc

120 kg/ Day If Pathogenic

contamination

Hazardous

Incineration

(°°)

Radiographic

Films

Construction

area

Laboratory

Intermittent

(insignificant

quantity)

Hazardous

Disposal by

Authorised

Company

Textiles

Construction

area

Accidental

releases,

spills or leaks

near tanks or

vehicle

maintenance

areas

Intermittent

(insignificant

quantity)

Hazardous

Incineration

(°°)

Water

treatment

sludge

Equipment and

vehicle

maintenance

and repair

Petroleum,

lubricating

Grease ,motor

oils, waste

lubricants

Intermittent

(insignificant

quantity)

Hazardous

Storage and

selling for

Recycling

(°°°) to local

company

Safety device

Construction

area

Filters for gas

masks, ear

plugs

Intermittent

(insignificant

quantity)

Non

Hazardous

Incineration

(°°)

Tyres

Maintenance of

vehicles

Tires used on

automobiles,

trucks and heavy

equipment

3

0.5 m each/

Day

Non

Hazardous

Selling from

recycling to a

Local

company

(°°°)

Wastewater /

Sewage

Camps,

laundry,

toilets, etc.

Water from

cleaning

activities

containing

sewage,

detergents

3800

m3/ Day

Non

Hazardous

Treated by

Temporary

sewage

treatment

plant.

Wastewater

(oily or non

oily)

Oil spill

recovery

activities,

equipment

wash

Water containing

small amounts of

oil from contact

with oily

equipment

Intermittent

(insignificant

quantity)

Hazardous/

Non

Hazardous

Removal oil

from water

and sell oil to

local company for

recycling (°°°)

important to evaluate/ identify the type of wastes to be disposed.

6-1-2-1 Construction and commissioning phase

During the plant construction and pre-commissioning phases different categories of waste will be

produced.

The hazardous waste (kept in sealed drums and labeled in an appropriate way) will be

temporarily stored in the dedicated area.

Table 6-1 provides a summary of the expected wastes generated during the construction phase for

gas refineries such as 15 & 16 with their description, classification and disposal routes.

Table 6-1: CONSTRUCTION WASTE DATA



Table 6-1: CONSTRUCTION WASTE DATA (cont.)

(°) Landfill: Transportation to the Local Authorized Landfill area.

(°°)Incineration: Incineration by the Temporary incinerator (500 kg/hr)

installed by HDEC. (°°°)Recycling: Transport to the special local plant for

reuse or recycling.

(*) Reuse; reuse for the site after selection of good condition of the waste.

The following guidelines are related specifically to the impact and safety considerations for the

different types. In addition a preliminary handling and collection guidelines are included.

Absorbent Material

Absorbent material waste will be generated when cleaning up occasional small oil and fuel spills. The

amount of this waste material produced shall be minimized by following good operational and

“housekeeping” procedures to avoid spills, and by reusing lightly oiled absorbent material as much as

possible. Waste absorbent material should be temporarily stored in sealed containers and then disposed

with the hazardous waste (specialized company shall be for this kind of waste).

Excavation material

A large proportion of the excavated material shall be used for landscaping or other remedial activates

on site.

Chemicals

During construction, waste chemicals may include low toxicity products, resulting from during the

hydrostatic testing (tanks located on the Project site location). Most of these chemicals pose a low

potential toxicity hazard to drinking water and aquatic and terrestrial biota. The primary management

technique for these materials is to use the lowest toxicity chemicals fit for the purpose and to use the

Waste Type

Source

Description

Estimated

Amount

Waste

Classification

Possible

(°) Disposal

Site

Contaminated

soil

Construction

area

Spill/leaks

Intermittent

(insignificant

quantity)

Hazardous

Selling from

recycling to

a Local

company

(°°°)

Ash

Construction

area

Combustion

Facilities

Intermittent

(insignificant

quantity)

Hazardous

Landfill(°)

Pigging

sludges

Construction

area

Pipeline cleaning

operations

Intermittent

(insignificant

quantity)

Hazardous

Treated by

Temporary

sewage

treatment plant.

Refrigerants

Construction

area

Air conditioning /

refrigerant systems

Intermittent

(insignificant

quantity)

Hazardous

recycling

(°°°)



minimum required amount during the activities which require their use.

Kitchen Waste

The proper management of waste food material is a concern because of the potential of spoiled food as

an infection source. In addition, waste food, if not properly disposed, can attract animals to the site,

some of which may be endangered by normal site activates.

The largest quantity of kitchen waste will be generated by the construction camp. Assuming an

average of 3.4 kg of kitchen waste is generated per person per day

Metal Drums

Used metal drums may present an environmental hazard depending on the residual chemical contents.

Used drums should be preferentially considered for reuse. Waste drums not reused should be recycled

(if locally available), or disposed of in an environmentally sound manner.

Any option involving the reuse of a drum must take into consideration the chemical compatibility of

the residual contents of the drum and the material to be filled in order to avoid a violent chemical

reaction. Specifically, metal drums should not be given to the local population if they have held toxic

substances. In addition, the residual contents must be considered prior to dispatch for recycling.

Paper and Wood

The prime environmental concern for paper and wood waste is aesthetic, since these materials are

biodegradable albeit at a relatively slow rate. Waste paper and wood should be sold if possible, or

eliminated with kitchen waste and plastic.

Plastic

Plastic waste, although inert, is an environmental concern because of aesthetics and because of

potential physical hazards to animals; plastic items mistaken for food can choke an animal or affect its

digestive system, while other forms of plastic have been known to trap or bind animals. At the

construction camp and at the plant, plastic waste should be segregated for recycling, if locally

available, otherwise it should be eliminated with the kitchen waste.

Scrap Metal

Scarp metal may be generated during the construction phase of the project, for example, as pipe and

beam off cuts which are discarded.

Waste Oil

Waste oil may be generated during the construction of the Project through the use of machines, which

requiring lubrication.

Wastewater Generated at the Camp

Wastewater generated at the camps (i.e., sewage and wash water) should be stored and disposed in

order to avoid groundwater contamination. The wastewater will be sent to biological sewage treatment

plant through collection piping line by gravity.

Soils

Soil should be segregated and reused where appropriate for fill material. Unused soil should be



Waste Type

Source

Description

Estimated

Amount

Waste

Classification

Possible

(°)

Disposal

site

Hydro test fluid

Pipeline,

vessel and

tank integrity

testing

Water used to test piping that may

contain biocides, corrosion inhibitors,

oil, grease, methanol etc.

Total amount

Approx.

90,000 m3

Hazardous / Non

hazardous

(depending on

activities

Discharge to

Ditch or

Transport to

Water

treatment

unit.

( according to

the water

quality)

Dirty Water

Fire water,

demi. water,

utility water

from

lines/circuits/

Equipment

inside the

plant Area

Water plus sand, dust, iron scales,

debris and any eventual material left

inside the lines during construction

activities.

Intermittent

(insignificant

quantity)

Non Hazardous

Drainage to

be ditches.

Flushing oils

Lubricant oil 120

Litter/Day

Hazardous

Recycling

Commissioning

spares Plant &

Machinery Solvents Filter, Temporary

strainers, broken parts

1 ton /Day Non Hazardous

Hazardous As

appropriate

Contaminated

soil

Construction

area

Spill/leaks

Intermittent

(insignificant

quantity)

Non Hazardous

Selling from

recycling to a

local company

Domestic

sewage sludge

Camps

,kitchen ,

offices

Organic waste, Food waste

Non

Estimated

Non Hazardous

Landfill for

wet waste or

incineration

(others)

Medical

wastes

Medical

facilities

Sanitary waste, medicines , etc

Non

Estimated

If Pathogenic

contamination

Hazardous

Incineration

Scrap metal

Construction

area

Strips of metals, metal support

Non

Estimated

Non Hazardous

Recycling by

local company

Absorbent

materials

Spill clean up Hydrocarbons ,production

chemicals ,solvents Non

Estimated

Hazardous

Incineration

Dehydration and

sweetening

wastes

Dehydration

processes,

Sweetening

processes

Amines ,glycols ,filter sludge

,metal sulphides,

H2S,metals,benzene,mol sieve media,

salts, caustic

Non

Estimated

Hazardous

Incineration

Packing wastes

Construction

area/routing

activities

Plastic ,paper ,wood ,polystyrene

,roofing felt

Non

Estimated

Inert not

biodegradable

non hazardous

Reuse or

incineration

according to

the condition

Refrigerants Construction

area Air conditioning/refrigerant systems Intermittent(ins

ignific

ant

quantit

y)

Hazardous

Recycling

regarded adjacent to the plant or disposed of in a disposal area so as to minimise any visual impacts of

the project and any material displaced by flood.

Table 6-2 provide a summary of the expected wastes during commissioning phase for gas refineries

such as 15 & 16 with their description, classification and disposal routes.

Table 6-2 – PRE-COMMISSIONING AND COMMISSIONING WASTE DATA



Two major sources of wastewater from the commissioning phase of the project are hydrostatic testing

water and flushing described below.

Wastewater generated from the hydrostatic testing and commissioning should be collected, analyzed,

and disposed of in an environmentally responsible manner compliance with the standards given for

discharge as indicated in Environmental Job Specification Doc.

The primary potential reuse of the hydrostatic test water is for dust suppression in work areas. Other

uses such as gardening or irrigation of a green belt should be further analysed. In any case, effluents

should be tested, before any re-use of water is permitted. If test fluids do not meet these standards, then

the fluids should be stored and treated in the wastewater treatment plant. Several process vessels and

pipes will be flushed with water or chemical fluids for cleaning purpose. These operations may generate

effluent fluids containing potentially polluting substances.

6-1-2-2 Operation Phase

A preliminary assessment has been made of the types of waste generated during operation and their

quantities.

For each (main) waste produced during this phase the following are identified:

Typology

Sources

Description

Estimated Quantity

Frequency of generation

Waste classification/Disposal

For proper handling and disposal, wastes shall be well defined at source and the definition transmitted

along with the waste until the final disposal stage.

Table 6-3 provide a summary of the expected wastes during production phase for gas refineries such as

15 & 16 with their description, classification and disposal routes.



Waste Type -

Source

Description composition Quantity

produced Change

Frequency Waste

Classification (°) Unit 101

101-f-101 (4 train)

Feed gas filter

coalescer

Solid cartridge filter with

mercaptans, high content o H2S.

Lethal fluid (*) Hazardous waste: to

sour water closed drain

---

When cartridge

type, substitution

when necessary

(**)

Non Hazardous

Unit 101

101-F-102 (4 train)

Amine filtration

precoat Filter

Iron Sulphides, Carbonates,

MDEA

Hold

3 years

Hazardous A4090

Unit 101

101-F-103 (4 train), in

Amine filtration

Package activated

carbon filters

Spent Carbon saturated In Amine,

Hydrocarbon traces, MDEA

6 m3

3 years

Hazardous A4160

Unit 101

101-F-104 (4 train)

Amine filtration

cartridge filters

Amine to Amine Closed drain

---

3 years

Non Hazardous

Unit 102

102-F-101 A/B rich

Glycol filter

Hydrocarbon, H2S, Co2,

Mercaptan, Salt

Hold

3 years

Hazardous

A4060

Unit 102

102-F-102 (6 trains)

charcoal Filter

Traces of Hydrocarbon, H2S, Co2,

Mercaptan, MEG

Hold

6 months

Hazardous

A4060

A4150

Unit 102

102-F-103 A/B

Lean Meg Filter

Solid cartridge filter with ME

(monoethylene Glycol), MEG

degradation compounds, debris,

scale. Hazardous. To Glycol closed drain

Hold

3 years

Non Hazardous

Unit 102 102- F-104

Lean MEG Feed filter

Solid cartridge filter with MEG

(Monoethylene Glycol), MEG

degradation Compounds.

Hazardous. To Glycol Closed drain

---

Substitution

cartridge when

necessary (**)

Non-Hazardous

Unit 102

102-F-101 A/B

cartridge filter in a

package

Rich MEG, H2S traces.

Hazardous. To glycol closed drain

Hold

Substitution when

necessary (**)

Non-Hazardous

Table 6-3: Waste production in operation phase



Waste Type –

Source Description

Composition Quantity

produced Change

Frequency Waste Classification

(°) Unit 102

Glycol

Glycol 3 1000 m

3 years

Hazardous

Unit 103

103-F-101 A/B (2 trains)

Glycolated water filters

Presence o H2S lethal

service (*)

Hold

3 years

Hazardous A4090

Unit 104

104-D-101 A/B (4

trains) Dryers after filters

Traces of Mercaptans

and Aromatics (250

ppm), mercury, MDEA,

H2S, Rust

3

43.3 m

3 years

Hazardous A4060,

A1010

Unit 104

104-F-102 Treated Gas

filter

Catalyst fines (which

contain Mercury), traces of

aromatics and mercaptans.

Lethal service (*)

Hold

3 years

Hazardous A4060

Unit 104

104-R-101 A/B/C

Molecular Sieve

Aromatics, traces of

Mercury, mercaptans,

Amines, H2S

Hold

3 years

Hazardous A1010

A4090

Unit 104

104-R-102 (3 trains)

mercury removal

Traces of mercury

Hold

3 years

Hazardous A1010

Unit 109 109-f-101 A/B (2 trains)

1 st sour water filter

Solid cartridge filters type

sour water H2S (500 ppm),

Mercaptane (50

ppm), traces of aromatics,

mud, debris Hazardous: to

sour water drain closed

drain

---

3 years

Non Hazardous

Unit 110

110-f-101 A/B Glycolated

water filters


debris, scale, Mud,

Traces of H2S,

Hydrocarbon (lethal

service) Hazardous to

closed drain

---

3 years

Non Hazardous

Unit 113

113-F-11

Spent caustic filter

Spent caustic, dissolved

sulphide

Hold

3 years

Hazardous

A4090




Waste Type – Source Description


produced Change


(°) Unit 113

113-F-112

Disulfide sand filter

Disulfide oil, sand

0.17 m3

Hold

Hazardous A4060

Unit 114

114-F-101 A/B

Rundown Propane

Filters


molecular sieve fines. No

hazardous component.

---

Hold

Non hazardous

Unit 114

114-F-111 (2 trains)

propane sand filters

Traces of caustic with sand

13

3 years

Hazardous A4090

Unit 114

114-D-101 A/B Liquid

propane dryers

Traces of mercaptans

traces, H2S,

hydrocarbons, COS

4.45 m3

3 years

Hazardous A4090

A4060

Unit 115

115-F-101 A/B (2 trains)

rundown butane filters


molecular sieve fines.

Waste to closed train

---

3 years

Non Hazardous

Unit 115

115-F-111 (2 trains)

Butane sand filter

Traces of caustic with sand

7.3 m3

3 years

Hazardous A4090

Unit 115

115-D-101 A/B (2 trains)

Liquid Butane dryers

Traces of mercaptans &

hydrocarbons, H2S

2

3 years

Hazardous A4060

Unit 116

116-F-101 A/B Ethane

filter (2 trains)


Molecular sieve fines

---

Ethane

Non Hazardous

Unit 116

116-F-111 (2 trains)

Amine filtration precoat

Filters

Iron sulphides, carbonates

,DEA

Hold

3 years

Hazardous A4060

Unit 116

116-F-112 (2 trains)

Amine Filtration

Charcoal Filters

Hydrocarbon Traces, DEA

Charcoal (fines) DEA

Hold

1 year

Hazardous A4060

Unit 116

116-F-113 Amine

Filtration Filter

Solid Cartridge filter type

Amine to Amine closed drain

and recycled into the process

---

3 years

Non Hazardous

Unit 131

131-F-101 Diesel filter

Suspended solid, rust, dust to

hydrocarbon closed drain and

recycled or to burning pit

Hold

Cartridge

Non Hazardous

Unit 146

146-F-101 Fresh

MDEA Filter

Rust, dust, solid particles to

Amine closed drain and

recycled into the process

stream

Hold

Cartridge

Non Hazardous

Unit 146

146-F-102 Fresh MEG

Filter

Rust, dust, solid particles to

glycol closed drain

Hold

Cartridge

Non Hazardous





Waste type –

source Description


produced Change


(°)

Unit 146

146-F-103 Fresh

Methanol Filter

Rust, dust, solid

particles to

methanol closed

drain

Hold

Cartridge

Non Hazardous

Unit 146

146-F-104 Fresh

Caustic Soda Filter

Rust, dust, solid

particles to

caustic closed

drain, recycled into

the process stream

Hold

Cartridge

Non Hazardous

Unit 146

146-F-105 Fresh

Amine Filter

Rust, dust, solid

particles to Amine

closed drain and

recycled into the

process stream

Hold

Cartridge

Non hazardous

(°) Hazardous classification fro Basel Convention; see table

1 in

Appendix A.

(*) ((lethal service)) specified on equipment data sheets where is handled a fluid with h2S content higher than 1000

ppm wt or where mercaptan level is exceeding 100 pp in release gas.

(**) if basket type expected 1 cleaning per month (waste to closed drain system)

The following specific waste management guidelines relate to the environmental impact and safety

considerations of the different types of waste.

Chemicals All chemical wastes shall first be segregated before disposal.

As presented in Table.1-3, a large variety of Hazardous or potentially hazardous wastes will be

generated during the operation of the plant. Most of these wastes will be generated periodically (at

3-months to 4-year intervals) as a result of scheduled maintenance activities in the plant. Certain wastes

should be regenerated (i.e., processed for reuse) either on site (e.g., activated carbon) or off-site by a

commercial vendor, if available. The largest quantities of hazardous wastes, which will

be generated, are the sludges from the water treatment station and the transformer oils. If possible,

transformer oils should be recycled. Wastes containing toxic metals should be stabilised before

disposal.

Scrap Metal During operation, scrap metals may be generated from maintenance activities and replacement of

obsolete parts. Scrap metal poses limited environmental concern except for the physical hazard of sharp

edges and for aesthetics. The scrap metal should be sold (if possible) or disposed of in an

environmentally sound manner.



Waste Oil During operation, waste oil will be generated from equipment, such as compressors, vehicle and

generators. The organic and dissolved metal constituents of waste oil are a potential toxic threat to

drinking water and to aquatic and soil biota. Waste oil should be accumulated in drums for subsequent

recycling or elimination in an adequate way. The drums should be stored within

termed and lined area that contains potential spills. Sites for storage of waste oil should be

installed inside the facility.

Kitchen Waste The permanent camp, as for the construction camp, should be equipped with closed containers for

waste food material. The waste should be eliminated by an appropriate way, such as a dedicated landfill

in an adequate location to minimize environmental impacts.

Sanitary Waste (collection and disposal) It should be noted that during operation, the domestic sewer water should be treated by an aerobic

biological treatment plant. Extended aeration process is selected to limit sludge production and avoid

odour problems in the vicinity of the drying beds. The sanitary water package shall be prefabricated as

far as possible.

The produced sludge will be thickened before being dried on drying beds.

The treated water will be disinfected by hypochlorite injection before being released. Extended aeration

activated sludge process in required. The treated water will be discharged from the plant by gravity to

the irrigation water basin. The stored water will be further used for irrigation by mobile equipment.

Overflow from the irrigation basin will discharge excess water to the clean water outfall basin and then

directly to the sea.

The discharge should meet the water quality requirements listed in the Environmental Job

Specification).

6-1-3 Waste Management

6-1-3-1 Solid Waste management

All practical measures to reduce the generation of waste and to recover valuable resources

must be given due consideration by all operations to the use of the waste management

hierarchy.



Reduce Generate less waste by better management and by material substitution

Process Modification or Design Change/Material

Maximum Conservation of

resources

Reuse

Reuse in its original form

Cleaned & treated waste water for spraying on roads/envelopes for internal mails & documents/scrap paper as

scratch paper/cleaned drums for storage

Recycle Recycle or reprocess the item to incorporate it into a new product or new use

Paper / Glass / Cans / Metal

Extract materials or energy from a waste

Recover Incineration / Composting

Treatment Mitigate the inherent hazard of the waste

Physical/Chemical/Biologi

Last Resort

Disposal Mitigate the hazard through

Pathway modifications–

Relocate it to another location

Incineration/Landfill/Marine

The Goals and Objectives of the Waste Management Plan are:

• To minimize the generation of waste material by a judicious use of raw materials and in the

reuse or recycling of material, where feasible.

• To treat or dispose of wastes such that the disposal activity and the treated waste have a

minimal impact on the surrounding environment.

• To promote awareness of and adherence to proper waste management by site workers.

• To prevent hazard to the health and safety, and to minimize the impact on the

environment.

6-1-3-1-1 General

The Waste Management Plan shall include a strategy for managing wastes based on the

principles of:

• Reducing waste

• Reusing waste

• Recycling waste

• Recovering waste



The master should be approved all equipments to ensure that all type of wastes is properly

segregated, stores, transported and disposes. The master must approve appropriate procedure for

operators to keep records of wastes generated, stored and disposed off as per the regulations stated

in Environmental Protection Philosophy document. The master must also approve required

procedure for operators to ensure that any third party contractor who transports, stores or disposes

of waste on their behalf is competent and executes his activities.

6-1-3-1-2 HAZARDOUS WASTE MANAGEMENT Collection and handling

The handling and storage of hazardous material (whether gaseous, liquid or solids) shall take the

necessary precautions to guarantee the safety of the environment. Activities that produce hazardous

waste shall always be recorded including type of wastes, quantity and methods of disposal.

Disposal

Specific facilities for disposal shall be chosen taking into consideration the characteristics of the

hazardous waste .In case of incineration, precaution should be taken to ensure that there are no

adverse effects on air quality due to the decomposition of the waste.

During construction and operation of the plant, the following criteria should be considered when

selecting the location of hazardous waste (including chemicals) storage areas:

- Distance from inhabited areas, drinking water reserves, flood channels, sources of potential danger;

- Ease of access;

- Ground stability;

- Proximity to equipment and facilities (e.g. fire water, appropriate drainage systems);

- Separate storage areas for incompatible products.

The storage areas of hazardous waste should have the following components:

- Hazardous waste must be stored in a suitably designed reception facility (specifically designated for this

purpose) with impervious flooring, roofing, and suitable drainage control;

- Special precautions shall be taken to taken surface run-off from this are, and also for the disposal of

firewater;

- Secured access, limited to authorized and appropriately trained personnel.

Within the storage areas, hazardous and chemicals should be stored as follows:

- Drums should be preferentially stored vertically on pallets. Horizontal drums should be wedged;

- Storage racks with integral secondary containment are recommended;

- Stacking heights should be limited;

- Locations of emergency equipment should be indicated;

- Incompatible materials and components should not be stored/placed in containers areas and/or

containers and should be segregated;

- Materials shall be stored in good order, with clearly identifiable labeling.

In Addition:

- Storage facilities should be inspected regularly to detect leakage;

- Hazardous wastes shall not be stored in the storage area for long period: it could be applied a maximum of

90 days.



- An inventory of chemicals and hazardous should be kept.

Transportation should be carried out in accordance with the following requirements :

- Generator/ operator shall label and mark the consignments of hazardous waste before their

transportation;

- The storage, handling and transportation of all hazardous waste should be documented with records of

quantities, characteristics, associated hazards and emergency procedures.

6-1-3-1-3 NON- HAZARDOUS WASTE MANAGEMENT

Collection and Handling

Containers for onsite collection, and storage areas shall be selected and designed to prevent the accumulation

of refuse and the creation of health and fire hazards.

Containers shall be selected for the specific service intended, and shall be equipped with tightly fitting lids

(except those used for non-hazardous solid material which shall not be blown by the wind). Light weight

plastic or paper bags shall not be used alone, but may be utilized as liners for metal or plastic containers.

Disposal

Non hazardous waste should normally be disposed of immediately; non hazardous waste material may be

stored on a specified site before its final disposal for short period. This site shall be suitable with respect to

drainage, potential movement at waste by the wind, wildlife/ pests, odours problems etc. usually approval

for intermediate storage should be obtained from local authority.

It should be noted that non hazardous waste such as construction debris and demolition materials shall not

be allowed to accumulate such that it presents a safety hazard for workers, or detract from the aesthetic

value of the community. This material shall be removed to the solid waste disposal site at the earliest

opportunity as the waste material is produced.

6-1-3-2 Wastewater management

Specific restrictions on the discharge of pollutant material, the general requirements of the Department of

the Environment include the following:

Treated wastewater must be discharged into receiving water in a uniform manner so that maximum

mixing occurs

Effluent must not have an “undesirable” odour and must not contain any foam or floating objects

The colour and opacity of the effluent must not change the natural appearance of the receiving water

at the point of discharge.

Diluting treated or non-treated wastewater in order to change the concentrations of the pollutants to

acceptable standards is prohibited

The use of wastewater evaporation methods is only permitted with the agreement of the Department of

the Environment.

Wastewater treatment installations must be designed, constructed and operated in a manner that

pollution is minimized in an emergency (e.g. failure of mechanical equipment).



The effluent outfall to sea shall be sited a minimum of 1 metre below the lowest low tide level at the

point of discharge.

6-1-3-2-1 Effluent discharge limitation (liquid spill and effluent )

All industrial complexes which produce waste water with higher quantities of pollutants than those above

the National Standard of Environmental Protection Agency of Islamic Republic of Iran should have

waste water treatment facilities before the final release to the environment. The effluent standards for

direct discharge are reported in part 4-5.

6-1-3-2-2 Design procedure and guidelines for effluent water pollution control

Proper design, inspection and maintenance of general facilities should be applied, to avoid

contamination of waste water with oil or other contaminants the following are suggested:

• Recovery of oil spills and hydrocarbons with vacuum trucks to reduce emissions and water effluents;

• Separation of oily wastes, and other process wastes from general effluents for more effective treatment;

• A specialized program for handling oily wastes, sledges, wash waters and others effluents.

• A monitoring system in the final stage of treatments should be provided

• Building of dikes around tanks containing products which are liquid at ambient conditions;

• Containment of storm water from the process areas where it could come into contact with oily residues

and chemicals;

• Leak detection system capable of detecting small volume or slow rates of leakage from the pipeline

system;

• Appropriate use of valves to minimize potential spill volumes.

Chemical waste as spent caustic and specific equipment drains shall be discharged to a

neutralization pit for pH adjustment prior to being discharged into the oily water treatment package for

removal of oil.

Regarding the facilities drainage system, appropriate containment or diversionary structures should be

provided to prevent oil from leaving the property uncontrolled.

Wastewater generated in the process is separated into a number of systems including the oily water sewer,

accidentally oil contaminated sewer, chemical sewer, domestic sewer, peripheral rainwater ditches and the

process closed drain.

Wastewater streams must receive treatment prior to discharge to achieve the required effluent discharge

standards. All treated wastewater streams and cooling water returns will be discharged to the sea via the

observation basin. Treated sanitary waste water shall be reused for irrigation purposes as required.

The discharge outfall point must be located minimum of 1metre below the lowest low tide level at the proposed

site discharge.

Sour water

Sour water streams originating from the process units shall be transferred to the sour water stripping unit.

The stripped water will be discharge to sea via the observation basin and clean water outfall basin.



Brine

The brine from desalination unit shall be routed to clean outfall basin and then directly to the sea.

Non-contaminated process waste effluents

Non-contaminated process waste effluents such as wash down from non oily equipment, cooling tower

and boiler blow down, fresh water drains shall be transferred directly to the clean outfall basin.

Accidentally oily contaminated water sewer

This system shall collect water which may be polluted by hydrocarbon products such as rain in the

process, utility paved areas or wash down of paving areas. The water will be collected in drain network

and sent to the oily water treatment or in excess to the contaminated storm basin.

Oily water

Oily process wastewater discharge shall be segregated and treated by gravity separation using an API

separator. Treated effluent shall be discharge to an observation basin where it will overflow to the clean

water outfall basin and then to the sea.

Strom and firewater flows shall be captured in a storm basin. This water can either be recycle to the API

inlet for additional treatment or discharge to sea providing the discharge criteria are met.

Chemical wastes

Chemical effluents such as acid cleaning effluents, spent caustics, specific equipment drains and

laboratory wastes shall be discharged to the neutralization unit for pH adjustment prior to being

discharged to the oily water treatment package for oil removal and then clean water outfall basin.

Amine wastes

Amine contaminated waste streams shall be contained in the process closed drain system.

Closed drains from process equipment are collected in an underground network and then flashed in a

buried drum which is vented directly to the flare network.

Sanitary waste

The domestic sewer shall receive all sanitary, domestic and kitchen effluent from the plant buildings.

These effluents shall receive biological treatment and disinfection in the sanitary wastewater package.

Sanitary waste will be discharge by gravity to the sanitary wastewater treatment unit. Kitchen effluent

shall first pass through a grease interceptor prior to entering to the sanitary waste sewer.

Treated water will be used for irrigation of landscape areas with excess treated water being forwarded to

the clean water outfall basin.

The design shall include adequate equipment to monitor and record discharge into environment for

compliance with the regulatory limits.

Cooling water



The projects will require sea water for the cooling system and desalination plant. Cooling will be

provided by sea water cooling intake pipe and returned cooling water will be discharged to the sea.

At a 200-m radius from the point of effluent discharge, the cooling water discharge shall not result in an

increase in ambient water temperature by more than 3C.

6-1-3-3 Air Quality and emission

This section deal both with requirements regarding the quality of air and the limits on the contents of the

pollutant in the gaseous effluent at the sources (emissions).

Where the air quality limits are exceeded, technical measures shall be applied so that the limits are complied

with.

The reference standards are listed below:

• Draft Iranian Ambient Air quality standard “Environmental regulations and standards” Prepared by the

Bureau of air pollution Investigation, May 1998;

• IPS-E-Sf-860 “Engineering Standard for Air Pollution control”, July 1994;

• World Bank Group (Pollution Prevention and Abatement Handbook; 2005)

6-1-3-3-1 Ambient air quality standards

The required ambient air quality standards for the Project are given in part 4-3. These follow the Department

of the Environmental Regulations and Standards.

6-1-3-3-2 Source emission standards

Emission standards for discharge from point sources

Source emission standards exist for controlling emissions to air from point sources. The main point

sources of emissions to air from the South Pars Phases will be from combustion process units

including boilers, export gas compressor turbines, the sulphur recovery unit incinerator,

propane/butane regeneration heaters and flares.

Part 4-4 states the Project standards for emissions to air from point sources. These have been obtained

from Iranian Petroleum Standard IPS-E-SF-860.

Table 6-4 represent status of gaseous discharge from point sources of one of the POGC projects as sample



Table 6-4 status of gaseous discharge from point sources.

Source

Stack

Height

Flue

gas

temp.

Flue gas

velocity

Stack

Diameter

Flow rate

Composition

SO2 NOX H2S

m °K M/s m Nm3/hr G/s G/s G/s

Drier

Regeneration

Furnace

18 477 7 1.01 11582 Trace 0.4 -

Steam Boiler

43 458 20

2 m in

upper

section

0 0 0 -

Steam Boiler 134130 Trace 11.923 -

Compressor gas

turbine 30 776 30.8 3.67

0 0 0 -

Compressor gas

turbine 412230 Trace 22.329 -

SRU tail gas

incinerator

Normal

95

625

12.43

3.2 157143

94.72 8.59 0.663

SRU tail gas

incinerator

SRU trip case

8.28 63.15 5.73 0.442

SRU tail gas

incinerator

TGTU trip case

12.43 181.15 8.59 0.663

Propane

regeneration

Heater

17.48 983 6.74 0.56 1745 Trace 0.058 -

Butane

regeneration

Heater

16.57 966 6.58 0.44 1074 Trace 0.037 -

Ethane

regeneration

Heater 17.43 994 9.19 0.56 2357 Trace

0.055

-

0.057

Hp Flare

package

SRU trip case

110 319 - 0.902 3.51e+9 Trace 0.39 -

MP Flare

package

SRU trip case

110 330 - 0.743 1.07e+7 3888 1.2 31.45

Lp Flare package

SRU trip case 25 385 - 0.743 4.61e+6 0.0162 0.38 -

Hp Flare

package

Emergency

110 319 - 0.902 3.15e+6 1483 377 12.2

MP Flare

package

Emergency

110 319 - 0.743 6.68e+6 5266 1.2 42.7

Lp Flare package

Emergency 25 358 - 0.743 2.94e+6 836 16.7 7

Hp Flare

package

Unit

110 256 534 0.902 1311076 - - 799.88

MP Flare

package

Unit

110 318.2 13.5 0.743 18045 - - 2840.49

Lp Flare package

Unit 25 317.1 33.5 0.743 44955 - - 451.19



6-1-3-3-3 Environmental design criteria in POGC projects

Heater and boiler stack emission

The pollutants from combustion including nitrogen oxides, carbon monoxide, sulphur dioxide, and

particulates (PM10) shall be controlled by the application of Best Available Technique Not Entailing

Excessive Cost (BATNEEC).

SOx shall be controlled by limiting the sulphur content in the fuel stream.

NOx shall be controlled by the use of low NOx burners to limit NOx production.

CO shall be controlled by monitoring the fuel gas – air combustion ratio (excess air).

All stacks shall be designed to allow for periodic gas sampling.

The calculation of minimum stack heights will follow US EPA Guidelines for Determination of Good

Engineering Practice Stack Height, to ensure that there is adequate dispersion and that the stack heights

are sufficient to compensate for any interference caused by the close proximity of any structures or

buildings.

Flare emissions

The height of flares shall be arranged so that the ambient air quality at ground level meets the Ambient

Air Quality Standards noted in (Table 6-4) Dispersion modelling shall include both normal operation

and the flame out condition. The modelling shall also include calculation of the emissions to atmosphere

in the case of shutdown of the Sulphur Recovery Unit U-108.

To minimize smoke from flare tips, steam injection nozzles or air injection nozzles should be provided

on flare tips where possible.

Sulphur recovery plant emissions

Hydrogen sulphide removed from gas streams will be forwarded to the Sulphur Recovery Unit U-108

for conversion to elemental sulphur: the sulphur recovery efficiency shall be at least 99.7%.

Unconverted hydrogen sulphide from U-108 will be incinerated to sulphur dioxide before release to

atmosphere.

Burn pit

The Burn Pit is an alternative destination for liquid wastes in the event that the Off-Spec. Condensate

Tank is not available. The waste liquid may consist of total water or total hydrocarbon liquid or a

mixture of both liquids. The burn pit consists of a liquid burner feed drum and liquid burner situated in a

pit, which vaporises the waste feed and disposes of it through combustion.

To minimise the operation of the burn pit, the process drainage philosophy shall be for liquid waste to

be sent to the Off-Spec Condensate tank for recovery wherever possible.

The burn pit shall be lined with concrete or other impermeable material to protect the soil and

underlying groundwater from contamination.

Tank emissions



Storage tanks shall be designed to minimise the emission of Volatile Organic Compounds (VOC).

Condensate storage tanks shall be equipped with floating roofs. Storage tanks of more volatile chemical

substances shall be of fixed roof design with nitrogen blanketing.

Refrigerants and Halogenated Substances

As far as reasonably practicable, refrigerants should be selected from those which have a reduced impact

on the environment in the event of a potential leak. Halons shall not be used for fire fighting.



6-2- Offshore

6-2-1 Objective

The objective of this Offshore Environmental Protection Plan is to review and identify

environmental requirements applicable to the POGC.

The Environmental Protection Plan provides practical guidance on the environmental requirements

for POGC facilities. Reference of the relevant guidelines, in particular the Iranian Petroleum

Standards and issued by the World Bank Group, were also reviewed. The platform and associated

facilities will be designed to ensure compliance with relevant environmental standards for air

quality, effluent discharge and water discharge, with the aim to minimise air emissions and

discharges from the platforms.

The EPP is developed based on:

i. Iranian environmental regulations;

ii. Iranian Petroleum Standards;

iii. international standards and guidelines (such as World Health Organisation, World Bank

Group and United Nation Environment Protection); and

iv. International Treaties which Iran is party to.

6.2.2 Project description

The development of POGC field will allow for gas production. Reservoir fluids are transferred

onshore via dedicated sea lines for treatment to produce the following main products:

treated lean gas for the domestic gas network;

ethane as petrochemical feedstock;

treated C3/ C4 LPG; and

established hydrocarbon condensate for export by marine tankers.

The Phase POGC development consists of several similar wellhead platforms (2 or 4, based on

their design).

The design features for each platform include the following minimum production facilities;

fluid gathering;

chemical injection;

well testing;

condensed and free water separation; and

oily water treatment.

It is the Company‟s responsibility to ensure that all type of wastes are properly segregated,

stores, transported and disposes.. Company must keep records of wastes generated, stored and

disposed off as per the regulations stated in Environmental Protection Philosophy Table 3.8.

Company must also ensure that any third party contractor who transports, stores or disposes of

waste on their behalf is competent and executes his activities.



6.2.3 Potential ENVIRONMENTAL ASPECTS and relevant standards and regulations

The identified potential environmental aspects for offshore are air emissions, water discharge,

noise and waste management. The following sections further describe the identified aspects and

summarize out its corresponding standards for compliance.

6.2.3.1 Emissions To Air

Iran utilized the World Bank air quality guidelines to manage air quality. The applicable

industrial emission guidelines from the World Bank Group are provided in part 4-4.

Gas emissions produced by the combustion of gas or liquid fuels in turbines, pumps and other

engines for power and heat generation, or for water injection or oil and gas export, can be the

most significant sources of air emissions from offshore facilities.

6.2.3.2 Ambient Air Quality

Atmospheric emissions will mainly be generated from combustion emissions associated with

diesel generators, from flaring, venting and from fugitive emissions from diesel tanks. Well

fluid disposal during drilling shall be burned in the liquid burner and well testing shall be

returned to the production line after testing.

The ambient air quality standards in Iran are shown in part 4-3.

6.2.3.3 Solid Waste

The potential sources of solid waste generated include domestic waste, process waste and

sludge from the oily water treatment system.

The Kuwait Convention, 1978 specified an operational standard on discharging waste as

tabulated in part 4-6.

6.2.3.3.1 Solid Waste Streams

The platform facilities will generate the solid waste streams per platform as follows:

Domestic waste

Domestic wastes generated include food waste, paper, plastic, metal and glass. These wastes,

however, are only generated intermittently during maintenance activities at the platforms. The

platforms are generally operated unmanned. However, maintenance personnel will visit the

platform periodically for routine maintenance activities. Domestic waste generated during

maintenance activities will be collected and transported onshore for disposal. Domestic waste

should be disposed as per Environmental Protection Philosophy [Ref. ii Table 3.7 and 3.8] to

minimise potential impacts.

Spent drilling waste

During drilling activities, spent drilling waste will be generated. The handling, transportation

and final disposal should be as per Environmental Protection Philosophy [Ref. ii Table 3.7] and

Ref. [viii]. Disposal of spent drilling waste by discharge to the sea must be avoided. They

should be transferred to shore for recycling or treatment and disposal. Non-Aqueous Drilling



Fluids (NADF) are to be contained for reuse or disposal. Waste generated during drilling can

be collected on oil residue (sludge) tank on the rig for retention and further disposal onshore.

Used process equipment

Filter media (Fuel Gas Filter), molecular sieve (Air Dryers), etc. are likely to be generated.

Used process equipment consumables will be collected and disposed onshore to a certified

facility. Used process equipment will be treated as solid waste. These waste materials should

be segregated offshore into non-hazardous and hazardous waste at a minimum, and shipped to

shore for re-use, recycling, or disposal. Efforts should be made to eliminate, reduce, or recycle

wastes at all time [Ref. vi].

Empty drums/ containers

Drums/ containers are used to store chemical/ hydraulic oil/ diesel / methanol / injection

chemicals for equipment operation and maintenance. Used drums/containers will be sent

onshore for reuse / recycle or disposal. The handling, transportation and final disposal should

follow applicable guidelines and regulations as per Environmental protection Philosophy [Ref.

ii Table 2.1 and 3.8] to minimise potential impacts.

Pigging sludge

One of the solid wastes that will be generated during servicing or maintenance of the platforms

is sludge produced during pigging operations. The sludge collected from pigging operation will

be sent onshore for disposal. The handling, transportation and final disposal should follow

applicable guidelines and regulations as per Environment Protection Philosophy [Ref. ii Table

3.8].

Sludge/residue from sanitary water system

The other main source of solid waste is sludge and residue generated from the utility system

such as the sanitary water system. Sludge/residue from the sanitary water system is transported

onshore for disposal. The handling, transportation and final disposal should follow applicable

guidelines and regulations as per Environment Protection Philosophy [Ref. 11 Table 3.8] to

minimise potential impacts.

The table 6-5 indicates the type of solid waste that will be generated by the offshore facilities.



Table 6-5 Solid Waste Register

Waste Source Hazardous Disposal Frequency Remarks

Domestic waste

● Food waste/organic

● Paper

● Plastic

● Metal

● Glass

Non

Transported onshore

for disposal (e.g.

landfill).

Subsequent to

every offshore

visit

Quantity will not be

significant as this

waste will only occur

during the

construction phase or

platform maintenance

Spent drilling waste (drill

cuttings) including formation

solids

Potential

Transported onshore

for disposal by

drilling rig.

During drilling

operation --

Oily sludge (from drilling,

dewatered) Potential

Transported onshore

for disposal by

drilling rig.

During drilling

operation --

Used process equipment (filter

media, resins, spent catalysts,

etc.)

Potential

Transported onshore

for disposal (e.g.

certified B3 waste

management center).

Intermittent --

Empty drums Non Returned for

reutilization. Intermittent --

Pigging sludge Yes Transported onshore

for disposal.

Subsequent to

every pigging

operation

--

Sludge/residue from sanitary

water treatment system/oily

waste water treatment system

Non

Transported onshore

for disposal. Solids

to landfill or land

spreading. Coarse

solids to landfill.

Intermittent --

6.2.3.3.2 Waste Segregation and Storage

Wastes should be segregated according to their categories. Wastes shall not be mixed there by

reducing the opportunity for any waste to be recycled or re-used, or contaminating inert or non-

hazardous waste with hazardous or toxic materials. Suitable containers should be provided to

receive the waste (e.g. drums) depending on the category of waste. The containers should be

clearly labelled and covered to prevent cross contamination. Toxic waste materials should be

stored in a safe, secure area where storage receptacles can be inspected for leaks or

deterioration. Access to any storage area for hazardous or toxic wastes should be restricted.

Within the storage area, hazardous or toxic wastes should be located according to their

international hazard classifications. The Basel Convention on the „Control of Trans boundary

Movements of Hazardous Waste and Their Disposal‟ provide guidance on hazard

classifications. Refer section 2.3 of Environment Protection Philosophy .

6.2.3.3.3 Waste Transportation and Disposal

Company shall be responsible for ensuring the appropriate handling procedures are developed

for transportation wastes both on and off site. The procedures on waste transportation and

disposal shall be as per the existing Company guidelines

Spills

Company are advised to prepare a Spill Prevention and Response Plan. This Plan shall describe

how the Company will deal with potential spills of hazardous material (either solids or liquids),

method for clean-up and disposal activities. All spills should be documented and reported.



Following a spill, a root cause investigation should be carried out and corrective action taken.

6.2.3.4 Liquid Waste

6.2.3.4.1 Applicable Regulations

Significant effluents from the South Pars Phases Project include drilling muds and cuttings,

produced water and process fluids. As such, those effluents from the platforms shall meet the

environmental guidelines as tabulated in Environmental Protection Philosophy .

Wastewater generated from the POGC phases development is mainly produced water and

domestic wastewater.

6.2.3.4.2 Effluent Discharge Quality

Effluents will be generated mainly from the following sources:

domestic effluents including black water from toilets and grey water from showers, wash

basins and sinks; and

effluents from disposal tubes such as oil non-contaminated waters, platform floor drain

pits and treated water from the oily water treatment system.

All equipment containing hazardous materials shall be provided with drip pans to prevent spills

to sea. The discharged liquid effluents shall meet the latest Iranian Environmental Regulations

Standard, the World Bank Group standards and International Finance Corporation standards

listed in part 4-5.

Significant effluents from the POGC Phases Project include drilling muds and cuttings,

produced water and process fluids. The liquid effluents from the platforms shall meet the

environmental, health, and safety guidelines for offshore oil and gas development by the

International Finance Corporation and the World Bank Group, 2007 (Table 4-11).

6.2.3.4.3 Liquid waste streams

Effluent will be generated mainly from the following sources:

Process water (discharge from Test Separator, Free Water Knock Out [FWKO] drum and

Condensate Coalescers)

Process water will be treated in an Oily Water Treatment plant in order to reduce the oil

content. Sour oily water separated from the FWKO Drums and from the Test Separator is sent

separately to two dedicated de-oiling hydrocyclones. The separated oil phase from the

hydrocyclones will be sent to the Closed Drain Drum while the water phase will be routed to

the Water Degassing Drum. Subsequently, the water phase will be routed to the open drain

system, while separated oil will be returned to the production header.

Oil from the Water Degassing Drum will be discharged by gravity to the Closed Drain Drum.

Liquid collected in the Closed Drain Drum will be pumped back into the production manifold

and recovered.

Helideck foam (AFFF) water drum storage will be flushed periodically with water and washing

will be discharged into open drain to sea through Open Drain Caisson.



Sanitary water

Sanitary water comprises two separate streams, namely black water from the water closets and

grey water from showers, wash basins and the sink.

Sanitary water will be chemically treated to meet the effluent water requirements prior to

discharge to the sea. No continuous water discharge is foreseen as the platform is operated

unmanned for prolonged time periods. During periods when the platform is manned, eight

people will be housed for a maximum period of three days.

The effluent treatment includes: solids separation, oxygenation and disinfection. Solids

separation from sewer waters is accomplished in the sanitary water accumulator. Mud settled

on the bottom is collected in drums and periodically transported by barge for onshore disposal..

Hypochlorite is injected to disinfect treated effluent prior to discharge. The separated liquids

are macerated before disposal to the sea at a depth of –5 m from LAT.

Surface water (discharge from decks, helideck, open drains and closed drains)

Sources of surface water discharge are mainly water collected from decks, helideck, open

drains and closed drains. An independent drain system is dedicated to the platform helideck.

Rain water from the helideck floor is recovered into a Helideck Drains Tank and discharged to

the Open Drain Sump Caisson through a dedicated overflow. The tank has sufficient capacity

to contain the total helicopter jet fuel tank charge in the case of an emergency. Any jet fuel

collected in the Open Drain Sump Caisson will be recovered by Open Drain Sump Pump into a

supply vessel via a dedicated connection at the boat landing.

The open drain system collects effluent from the platform decks. Effluent is then directed to the

Open Drain Sump Caisson. The accumulated oil is recovered by Open Drain Sump Pump into a

supply boat via a connection at the boat landing. The disposal of accumulated oil inside the

Sump Caisson is performed by the operators during routine platform visits.

The closed drain system collects oily water from the main equipment items. These loads are

expected to be intermittent. The only potential continuous loads to the closed drain system are

the rejected oil phase from the hydrocyclones and the skimmed condensate layer from the

water degassing drum.

Rain water

Rain water collected from the decks will be discharge through the Open Drain Sump Caisson.

The amount of residue or oil is considered to be insignificant.

Maintenance waste oil

Waste oils generated from maintenance works are to be manually collected. Waste oil from

maintenance activities is discharged through the Open Drain Sump Caisson or manually

collected for onshore disposal.

The table 6-5 indicates the type of liquid waste that will be generated by the offshore facilities.



Table 6-5 Liquid Discharge Register

Discharge

Type Source

Discharge

Volume

(BWPD)

Discharge

Composition Frequency Disposal Remarks

Process water

●Test separator

●Free Water Knock

Out (FWKO) and

Condensate

Coalescers

1,000

BWPD ●Oil Continuous

Process water routed to

the oily water treatment

system. After treatment,

water discharged to sea

through open drain

system.

--

Sanitary water

●Wash basin

●Shower

●Sink

●Water closet (WC)

N/A

●BOD5

●COD

●DO

●TSS

●Total coliform

Intermittent-

during

personnel

offshore visit

Treated prior to release to

sea.

●The platforms are located more than 12 nautical

miles from shore with less than 10 permanent

persons on the platforms. Direct discharge to sea is

allowed by the MARPOL Convention and the

Kuwait Protocol.

●Prior to disposal to the sea (via pipeline which

terminates well below the minimum sea level),

sludge is pumped through a macerator and bacteria

killed through hypochlorite injection. A connection

for disposal of sewage to the supply boat is

foreseen.



Discharge

Type Source

Discharge

Volume

(BWPD)

Discharge


Surface water

(Oily water)

●Decks

a) Cellar

b) Upper

c) Lower

●Helideck (Drain

Tank)

●Open drains

a) Total Open Drain

from

Upper/Lower/Cellar

Decks

b) Total Open Drain

from Hazardous Area

c) Total Open Drain

from Non Hazardous

Area

d) Diesel Oil System

e) Glycol Injection

System

f) Chemical Injection

System

g) Closed Drain

System

h) Water/Foam Fire

Fighting System

i) Fresh Water

System

j) Compressor Air

System

k) Water Degassing

Drum

●Closed drains

N/A ●Oil

●TSS Intermittent

●Treated water released

to sea through caisson.

●Skim oil pumped out

from caisson and

collected by supply boat.

--



Discharge

Type Source

Discharge

Volume

(BWPD)

Discharge


a)Production/Test

Manifolds

b) Condensate

coalescer

c) Launching Trap

d) Flare KO Drum

e) Fuel Gas System

f) Oily waster Water

Treatment System

g) Gas Condensate

Header

h) Receiving trap

i) Deoiling Cyclones

Rain water Platform floor drain

pit N/A ● Rain water Intermittent

Released to sea via open

drain sump caisson. --

Waste oil Equipment /

machinery N/A ● Oil Intermittent

Skim oil is discharged

through the Open Darin

Sump Caisson or

manually collected for

onshore disposal.

--


September 2012- HSE Communication Procedure Page 52

7. REFERENCES

i. Environmental Regulations And Standards, Islamic Republic of Iran, Department Of The

Environment, Divison of the Human Environment, August 2002

ii. Environmental Protection Philosophy, WorleyParsons, August 2002

iii. Environmental Management in Oil & Gas Exploration and Production by UNEP.

iv. South Pars Field Development Phase 11 Offshore Basic Engineering Environmental

Standards For South Pars 11 Project, May 2005

v. Environmental, Health, and Safety Guidelines Offshore Oil and Gas Development by

International Finance Corporation and World Bank, 2007

vi. Offshore Technology Report, Health and Safety Executive, 2001/068

vii. MARPOL 73/78 Consolidated Edition 2002

viii. Iranian Petroleum Standard (General Standard For Noise Control and Vibration, Original

Edition, Dec. 1997)

ix. Iranian Petroleum Standard (General Standard For Air Pollution Control, Original Edition,

July 1994)

x. General Philosophy for Isolation Maintenance & Drainage, SP17/18-PR-PR-2011



8. APPENDIXES & ATTACHMENTS

APPENDIX 1 – Form Of Garbage Record Book, MARPOL 73/78









ATTACHMENT # 1

WASTE RECOVERY PROCEDURE



SUGGESTIONS FOR THE POGC

ENVIRONMENTAL PROCEDURE

MANAGER, HSE Department


Tehran I.R. Iran

Please consider the following suggestion(s) relative to the POGC Environmental Procedure:

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(Signature)

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(Date)

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(Address)

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Contact Telephone Number

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Contact FAX Number

Documents

Pars Oil & Gas Company