DRAFT ENVIRONMENTAL DUE DILIGENCE REPORT€¦ · Environmental Due Diligence Report (EDR), including, in summary, assessment of the site conditions ... presents an overview of the

REPUBLIC OF BULGARIA

MINISTRY OF REGIONAL DEVELOPMENT AND PUBLIC WORKS

MUNICIPAL INFRASTRUCTURE DEVELOPMENT PROJECT

DRAFT ENVIRONMENTAL DUE DILIGENCE REPORT

LUDA YANA DAM

Sofia, October 2007

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Luda Yana Dam Environmmtul Due Diligence Report

TABLE OF CONTENTS

I .

11.

111.

IV.

v. VI.

VII.

VIlI

IX.

X.

EXECURIVE SUMMARY P. 3

INTRODUCTION p . 4

PROJECT DESCRIPTION P. 5

OPTION ANALYSIS P. 7

STATUS ANALYSIS, BASELINE DATA P. 9

FORECAST O F EXPECTED ENVIRONMENTAL IMPACT O F THE CONSTRUCTION OF LUDA YANA DAM p. 15

LEGISLATIVE FRAMEWORK AND ORGANIZATIONAL STRUCTURES FOR MANAGEMENT OF THE ENVIRONMENT p. 25

ENVIRONMENTAL IMPACT MITIGATION PLAN p. 25

ENVIRONMENTAL MONITORING PLAN p. 27

PUBLIC CONSULTATION PROCEDURES p. 28

Luda Yana Dam Environmental Due Diligence Report

I. EXECUTIVE SUMMARY

The Environmental Due Diligence Report for Luda Yana Dam is part of the documents presented by the Ministry of Regional Development and Public Works (MRDPW) to the World Bank for financing of the construction of Luda Yana Dam under the Municipal Infiastructure Development Project.

The Environmental Due Diligence Report contains the following main studies and conclusions:

Design support of Luda Yana Dam

Detailed engineering designs have been developed for Luda Yana Dam and the related facilities. The construction was carried out by these designs till its suspension in 2000. for Preliminary studies were developed for the Potable Water Purification Plant (PWPP) in 1989. The designs were made in conformity with the prevailing regulation of Bulgaria in order to guarantee the security - structural, technological and environmental - of the dam and the related facilities. The site for the PWPP location has not been selected. Before commencement of the construction, an update of the dam design, site selection and design for the Potable Water Purification Plant (PWPP) will be required.

An Environmental Impact Assessment (EIA) Report has been developed for Luda Yana Dam. The EIA Report procedure was started however, after a public discussion in Pazardjik it was suspended due to the lack of a PWPP design.

Environment condition

The condition of the environment in the area of Luda Yana Dam has been subjected to the impact of the construction works performed and is defined as anthropogenically affected. The dam has been built up elevation 568,25 (30 m height against 43,50 m design height of the dam, or about 70%), the civil part of the intake tower works is ready, 70% of the anti-seepage precautions have been implemented, as well as other aux~liary or temporary work sites, the bottom outlet is made, the quarry, the clay borrow pit and the humus storage site have been established, the excavation works for the spillway and the chute have been performed, the construction site is prepared. Currently it is used by the dam builder, Hydrostroy. The road to the Bunai Cottage is displaced but not asphalted. There 1s no design for PWPP.

The river ecosystem is subjected to considerable negatively anthropogenic influence from the construction and due to a widely varying run-off regime. Since 70% of the dam is built, the river continuum is partly maintained by the bottom outlet. The sector in the ponding area goes partly dry during the summer low-water period. The ichtiofauna is at the verge of survival. Much of the forest is cleared and the humus has been raked up and deposited. That contributes to intensification of the erosion, especially on the right-hand bank, after 2000 (when construction was suspended). The herpetofauna, the mammals and the omitofauna are affected mainly by the severely eroded terrains, cutting of the ligneous vegetation, stripping of the humus layer and dewatering of the river.

The suspension of construction of Luda Yana Dam leaves unsolved a basic social problem - water supply of the town of Panagiurishte, and the villages in the municipalities of Panagiurishte, Pazaradjik and Strelcha.

Environmental impacts of the construction and operation of Luda Yana Dam

A significant part of the negative environmental impacts attendant to the construction of Luda Yana Dam are over due to: opening of the quarry for rock till material, the clay borrow pit and the humus depot, already built service road network, developed construction site, 70% performed construction work on the dam and a significant part of the related facilities (the civil part of the intake tower, displacement of the road to Bunai Cottage, the excavation work for the spillway and the chute. The wall already built ensures precipitation of the construction effluent during the dam completion works without any risk of water pollution In the river.

Due to the progress made in the construction work, the environmental impacts from completion of Luda Yana Dam will be limited and their mitigation and prevention are feasible.

The main impacts of Luda Yana Dam will result from operation of the water power works. The river ecosystem is transformed into a reservoir ecosystem. 142,O ha of the area of cleared forest vegetation and

Luda Yana Dam Environmentul Due Diligence Report

former agricultural fund, where only a few fruit trees are left, with little probability of using the meadows and pasture land, will be permanently flooded. 2 km upstream of Panagiurishte there will be a dam classified as "large", and its safe operation has to be assured.

At the same time, the run-off regime of the river Luda Yana will be stabilized with the minimum permissible discharge into the river (ecological releases). Prerequisites for development of a sustainable ichtiocenosis will be established, the erosion processes will be stabilized through implementation of the erosion control project. The impact on the herpetofauna, mammals and omitofauna will be negligible. Normal good-quality water supply will be provided to the population in the municipalities, and that will create opportunities for development of the vacation and tourist business.

The possible alternatives at the design phase and at the present moment are reviewed herein. The regulation acts and methodologies used in the Environmental Due Diligence Report are enclosed.

For the purpose of mitigation of the negative consequences from the construction M operation of Luda Yana Dam, an Environmental Impact Mitigation Plan and a Monitoring Plan are proposed.

The results of the public discussion of the Project in Panagiurishte and of the consultations with administrative and competent authorities are presented.

As a result of a review of the project studies performed by the Exploration and Design Institute (EDI) Vodproekt, the Environmental Impact Assessment Report for the dam, and the meetings held in the municipalities of Panagiurishte, the extreme significance of Luda Yana Dam for overcoming the negative environmental consequences of suspension of the construction is emphasized. The analyses of the construction performance status, assessments and forecasts of possible impacts during the construction and operation of the water-power system prove the feasibility of mitigating the negative environmental impacts and of creating a health and comfortable living environment for the population in the municipalities concerned.

11. INTRODUCTION

2.1. General

The government of R. Bulgaria requested the World Bank's assistance in financing of activities related to the Municipal Infrastructure Development Project which will help Bulgaria to comply to the European Union's directives on potable and waste water and the environmental protection factors in the investment arrangements that will be acceptable and eligible for financing from the European Union's Structural Funds and are not covered by other EU grants.

The Project, the preparatory part of which is this Environmental Due Diligence Report (EDDR) encompasses the completion of three water-supply dams (Neykovtsi, Plovdivtsi and Luda Yana) where construction was suspended in the last decade, rehabilitation of the wall of an operating dam (Studena Dam), as well as rehabilitation of the water supply system of six companies providing water supply and sewerage services (Dobrich, Razgrad, Sliven, Smolian, Stara Zagora and Targovishte)

2.2. Purpose of the Project

The purpose of the Project is to ensure better water supply and responsible use of the water resources underlying the state policy for sustainable development of the water sector. It is in the spirit of the National Strategy of Bulgaria for Environmental Protection (2005 - 2014) that envisages ,,provision of good-quality water and sufficient water supply for all purposes7'.

The purpose of the Project will be achieved by means of: improvement of the conditions of water supply for domestic & drinking needs in selected regions;ensuring the required quantity and quality of potable wateqreduction of losses in the water supply network; improvement of the reliability and efficiency of water supply systems and facilities; provision for environmental requirements and regulations with respect to the systems; enhancement of the operators' management and operating capability, etc.


2.3. Bank's Requirements and Documents.

The overall environmental category of the proposed Project is A in line with Bank policies with individual investments that belong to both category A (the proposed dam completion activities and category B (the rehabilitation of water networks).

Based on the proposed Project Investments the following World Bank's safeguards policies and procedures are triggered: OPIBP 4.01 Environmentul Assessment; OPIBP 4.12 Involuntury Re.settlement; OPIBP 4.37 Suj2ty c?f' Dums; and OPIBP 7.50 Projects on Intemutionul Wutwwuys. Furthermore, adequate protection and maintenance of ecosystems downstream of the dams should be assessed during project preparation to determine the relevance of the OPIBP 4.04 Nuturul Huhituts and OPIBP 4.36 Forestry safeguard policies. Also, given the possibility that proposed water companies might implement projects in cities with historic districts, the OPN 11.03 Culturul Property safeguard policy might be triggered.

The following documents will be prepared by the Government of Bulgaria prior to project appraisal: (1) Environmental Framework of the Project (EF) for all proposed subprojects; (2) Environmental Due Diligence Report (EDR), including, in summary, assessment of the site conditions and assessment of the possible environmental impacts related to completion and operation of the proposed three dam sites; (3) Environment Management Plans (EMP) on investment in rehabilitation of the water distribution networks in which the contract provisions for construction works will be specified related to application of the technical standards and other requirements relevant to the construction phase. 4) project Land Acquisition Policy Framework that will outline the process to be followed in case there is land acquisition needed for the project; and (5) Social Due Diligence for the three dam sites that presents an overview of the past land acquisition process carried out by the Government.

2.4. Technical Documentation and Study of the Environment

In the preliminary studies performed by Vodproekt EDI in 1982, Luda Yana Dam is considered as integrated water power works designed for potable water supply, irrigation, power generation, water sports and fishing. At the further project development stages it is designed for water supply.

The designs of 1984 justify, on the basis of processed hydrological information and water-economy ~nvestigations, the typical capacities (sedimentation, unavailable, effective and total) and dam elevations. A cost analysis was made to prove the project efficiency. During that perion (1984-1985) the detailed engineering designs on the basis of which construction of Luda Yana started in 1986, were developed. The construction was interrupted during the time period 1990-1995 and suspended in 2000. As for the PWPP, there were some preliminary studies in 1989 but the site for its location was not accepted and a new design had to be developed.

An Environmental Impact Assessment Report for Luda Yana Dam was developed in 2000. A procedure was initiated for it and a public discussion was carried out in Pazardjik; however, due to the lach of a design for the PWPP, the procedure was stopped by the Ministry of Environment and Water. Studies of the environment condition and prognostic assessments of the possible impact were made within the framework of the EIA. The water quality in the rivers in the dam catchment area was analyzed by RIEW - Pazardjik and sample analyzes were performed by independent experts (assigned by Water Supply Works LLC - Panagiurishte). (Appendix: Analysis Results of 1995).

111. PROJECT DESCRIPTION

Luda Yana Dam is 2 km to the north-east of Panagiurishte on the river of Luda Yana immediately downstream of the confluence point of the rivers Stara Reka and Muleiska. The dam was designed by EDI Vodproekt.

The water supply system Luda Yana - Panagiurishte provides normal water supply to Panagiurishte and the villages Oborishte, Poibrene, Popantsi, Banya, Batta, Levski, Elshitsa, the Radka Mine, the sites of the companies Opticoelectron and Asarel in the Municipality of Panagiurishte and five more settlements of the Pazardjik and Strelcha Municipalities. Technically, there is possibility for water supply to Lesichevo Municipality as well. The calculations were made with a view to providing potable water for 45000 residents in 2020. Currently the region receives water from the terraces of the river Maritsa at Zlokuchene


through a 45 km pipeline built 45 years ago. The facility is worn, the frequent accidents create uncertainty and water supply rationing. The technical fitness is maintained at the cost of increased operating costs which, together with the inevitably high consumption of electric power for the five pump stations, form an end user cost about 0,70 EUR/mm - one of the highest in the country. Some additional water intakes were established in the catchment area of the prospective dam, and a water pipeline to Panagiurishte. The flow rate of the system varies and is influenced by the high-water seasons when the water quality deteriorates.

The main facilities of Luda Yana Water Power Works are: dam, intake tower, a diversion gallery, spillway and a potable water purification plant (PWPP).

Construction of the Luda Yana water supply system was performed at different periods by "Asarel- Medet" and "Hydrostroy" from 1986 till its suspension in 2000.

Luda Yana Dam is state public property and is governed by the Ministry of Regional Development and Public Works (MRDPW).

Dam

The main parameters of the dam are as below:

Dam type Rockfill with clay core

Maximum height 47,35 m

Crest length 458 m

Crest width 600 m

Total storage reservoir: 19,94. 106 m'

Lake length: 4500 m

Available storage capacity

Unavailable storage capacity

Water catchment area 1 00,4 km2

Ponded area 1420 dca

Crest elevation 585,60 m

Elevation at the highest operating water level (HOWL) 584,OO

Elevation at the highest water level (HWL) 585,35 m

Elevation at the lowest operating water level (LOWL) 563,50 m

Maximum water supply discharge 300 11s

Total water supply volume: 6,OO. 10" m'

Dam class 11

Intake tower, spillway and bottom outlet

The intake tower is designed with several ports at different levels. The spillway is situated on the left bank aside of the dam embankment and is designed for QO,OLO, = 280,OO m3/s. It was designed as a spillway with curved outline and chute with ski-jump. The bottom outlet is a steel pipe laid in the diversion tunnel, for the purpose of redirecting the river water during the construction.

Potable Water PuriJcatwn Plant

The Potable Water Purification Plant (PWPP) has not been designed

(Appendix: Plan of Water Supply Works "Panagiurishte", situation of Luda Yana Dam, Forest Map with plotted Luda Yana Dam, cross section of the Luda Yana Dam wall, photos).

Luda Yana Dam Environmental Due Diligmce Report

Current Status of Luda Yana Dam

Upon visual inspection of Luda Yana the following finding were made: the dam has been built up to 70% (of the full embankment), the excavation works on the spillway and the chute have been completed, the civil part of the intake tower is built, the facing of the upstream batter has been partly laid, part of the Control and lnstrumentation System (C&I) has been installed at the embankment level; the diverion gallery and the site road network are completed, the road to Bunai Cottage has been displaced without laying the asphalt paving, the quarry, the clay borrow pit and the humus depot have been started.

The following construction works have to be performed for completion of the dam: rock till on the dam, downstream batter facing, clay core, installation of all C&I devices; erection works at the intake tower and the bottom outlet; asphalt paving of the road to Bunai Cottage. The PWPP has not been designed nor has a site for it been selected,

Due to lack of a design for PWPP and unclarified EIA procedure, the stages of dam and PWPP can be performed in parallel or the PWPP construction shall not be delayed till a time after commencement of the dam construction.

All service roads from the quarry, the clay borrow pit and the humus depot are inside the reservoir basin. The routes do not cross any settlements. Only the vehicles carrying the intake tower and the bottom outlet equipment, and after defining the PWPP site - the equipment for it, will use a by-pass road of Panagiurishte. Waste from the construction works at the project site will be carried to the disposal site in Panagiurishte. The waste quantities, construction work schedule, and after the PWPP is designed, the manner of effluent treatment and outfalling, will be defined upon updating of the design. As for the dam, the cofferdam and the height ensure construction effluent precipitation. For completion of the spillway and the chute, the construction effluent has to be precipitated in a mechanical clarifier at the end of the chute.

The Contractor will be in charge of construction, and W&S - P SPLLC, Panagiurishte, will appoint the minimum staff for an operating unit who shall perform measurements with the installed C&I.

Construction monitoring reports will be submitted annually to the East-Aegean Region Basin Directorate - Plovdiv and to RIEW - Pazardjik.

The following action shall be undertaken before the start of project completion: review the as-built drawings of completed constructionlerection work on the dam and its facilities, including hidden work reports, update of the available designs of the dam and facilities; reassess the high water amounts taking into consideration hydrological data from the recent 20 years and update the dam crest elevation depending on the required freeboard; conduct micro-seismic studies to determine the seismic hazard on the dam site; remove the top layer from the clay core, the filters and rubble fill until material possessing design density and water tightness is reached; sample the core fill, filters and rubble drain fills and evaluate the geo-engineering indicators of the tills; check the deposits of filling materials in the borrow pits used; update the cross-section profile of the dam wall depending on the results of geo-engineering, hydrological and seismic studies; check the condition of installed measuring instrumentation and update the C&I design if required; finish the excavations made for spillway and chute on the left bank and update the spillway design in conformity with any changes; assess the condition of concrete structures (intake tower, diversion gallery, concrete slabs below the ACD on both banks) and rehabilitation of the concrete surfaces; design the PWPP.

IV. OPTION ANALYSIS

The studies of the alternatives to Luda Yana Dam date from the eighties of last century. The options considered were:

Locution options: Several ranges were studied; building the dam on another river; superstruct a ready dam; build several small dams. The range on r. Luda Yana proved to be the most acceptable from both economic and environmental point of view, as well as due to the developed road network leading to it. Two options were considered for the PWPP site: downstream of the dam; on the site of the existing PWPP for Panagiurishte.The site of PWPP will be determined in the design phase.


Wuter supply discharge options. Various prospective horizons of the development strategy for the regions of Panagiurishte, Pazardjik, and Strelcha and various possibilities for water supply to other settlements as well (Lesichovo) were considered. The adopted option for QB = 300 11s corresponds to the economic and demographic development of the municipalities till 2020.

Options cv'dum Qpe and re1utedJucilitie.s. The dam type was adopted after proving the cost indicators of several dam types and the operation safety in the conditions of 7'h degree of seismicity for a 2"d class structure. The choice of related facilities (intake tower, spillway and chute) was dictated by the terrain configuration and the overflow parameters.

A zero option was considered but was not accepted since Luda Yana Dam was proven to be the only possible source of potable water supply to the regions under consideration.

As of the present date, the dam has been built up to 30 m height and the construction has been suspended for seven years now.

Po.ssihle new options: preservution oj'the current stute, pmtiul completion und liquidution the dam, rrhohilitution oJ the pipeline Ji-om the terruce o j the r. Muritsu..

The nredjbr Lua'cr Yunu Dum

All data collected by the team (all its members included) and the public discussion in Panagiurishte, as well as the prospect studies of W&S-P SPLLC - Panagiurishte do not indicate dropping out of the need of feeding water to the settlements discussed. W&S-P SPLLC - Panagiurishte has everyday problems with aiicdents on the pipeline from the terrace of the r. Maritsa (it has been operating for 20 years and requires transfer pumping at 5 levels). The 45 km route requires high operation costs due to the need for continuous inspections and power consumption. The water from the basin of the future lake of Luda Yana Dam has a varying flow rate in low-water periods and poor quality in high-water periods. The town of Panagiurishte and the settlements in that municipality have great opportunities for development of cultural (availability of significant archaeological heritage) and ecologic tourism which will require normal water supply with good quality. To the residents, the construction of Luda Yana Dam is the only possible way of assuring the needed water supply and has never been dismissed in any of the project updates. The only obstacle was the lack of financing, notwithstanding that investments from Asarel- Medet AD were attracted in certain periods. New options necessitate search for new water sources because the 25-year long explorations have proven that there are none in that region.

Environmrntul impucts

Pre.servution oJ the current stute. The dam cond~tion will have to be updated considenng that 213 of the project work has been performed and that it has been conservated with the attendant incremental costs for safety. Construction of an overflow is required (the existing one cannot be used) and assurance of high- water passage in the lower river sector through construction of a stilling basin and regulation. There shall be operating staff to monitor the dam condition using the updated C&I system. Recultivation of the borrow pits and disposal sites shall be performed. A regional development plan shall be developed and implemented for rendering the visual impact of the rock fill more acceptable. Dewatering of the sector downstream of the dam and the critical condition of the ichtiofauna, as well as erosion development.

Purtiul completion. The partial completion requires search for an additional water source. It has been proven over the years that there is no additional source and a basic social problem - water supply, would not be solved. Similar to the first option, the additional engineering solution and the expenses to cover them remain. In addition, the dam design shall be updated as required by the regulations. That option cannot be estimated as one requiring lower capital investments due to the need for new relief facilities. The operation costs are almost the same without meeting the necessary requirements for water supply to the three municipalities. Comparison of the environmental impacts to those of the proposed option with final completion of Luda Yana Dam is impossible due to the unclarified height of the partly completed dam.

Liquidution c,f the dum. Liquidation of the dam will result in hard to predict consequences to the environment due to the need for providing natural letting through of the high waters, in which case more than 430 000 m3 fill material will have to be taken away and disposed. The concrete structure will have to be demolished and the area - recultivated. During liquidation, a new Operating Instruction and Accident Action Plan are required.


Rehuhilitution of the pipeline jkom the terruce of the r. Muritsu. The pipeline has been operated for 20 years, its length is 45 km across a comparatively rough ground, and it is served by 5 pump stations. The frequent accidents cause interruptions of water supply. Rehabilitation of the pipeline, according to W&S - P SPLLC, is not justifiable due to the power consumption for pumping which results in water price escalation, considering that even today it is among the highest water prices in the country.

The four alternative options discussed as possible are unjustified and inacceptable to the Bulgarian party fi-om economic, social and environmental point of view.

V. STATUS ANALYSIS, BASELINE INFORMATION

5.1. Atmospheric air

5.1.1. Climate

In terns of climate, Luda Yana Dam belongs to the Transitional-Climate subregion and more particularly, to the lower parts of the Trans-Balkan Low-mountain climatic region. The altitude of the dam waterplane is 584 m in the case of normal filling. As a whole, the climate typical of that region is milder compared to the Fore-Balkan climatic region which is at nearly the same altitude.

Winter - The region is characterized by relatively mild winter. The average monthly temperatures in winter are within the range -1,5" to about 2". The ground lay morphology is not likely to contribute to very low minimum temperatures. About 50% of the winter precipitations are rain, and due to the mild winter the snow cover holds for a shorter time compared to that in the Fore-Balkan climatic region. The average monthly relative humidity in winter is within 8045%.

Summer - Summer in the region is comparatively cool, the average monthly temperatures for the summer season are within the range 18-21". In the summer months, there are about 15 days with maximum temperature over 30". The period of stable temperature over 10" is about 200-210 days. A temperature sum of about 600-650" is accumulated for the period of stable temperatures within 5-1 5".

Spring und uutumn - The spring is relatively cool, the average monthly temperature increasing from about 4" in March to about 15" in May. The relative air humidity is within the range 70-75%. The two central months of the preceding seasons - April and October, have average monthly temperatures about 10-1 1 ", October being about O,SOwarmer than April.

The average annual temperature in the region is about 10". In order to obtain correct assessment of the climate conditions for the region of the dam, special attention shall be paid to the potential evapotranspiration and the precipitations. The annual evapotranspiration for the region is about 600-700 mm., and the annual precipitation sum, about 650 mm. The difference between the annual precipitations and evapotranspiration is minor. Most generally, the seasonal distribution has a continental nature - with more precipitations in summer and less in winter. The precipitations are about 132 mm. in winter, about 180 mm. in spring, and 195 mm and 149 mm in summer and autumn respectively.

5.1.2. Air Quality

After suspension of the construction of Luda Yana Dam, the air quality in the area of construction works corresponds to that before the start of the project. The company Asarel Medet JSC situated in the same region is a copper mining and processing enterprise. The highly broken ground in the region is a barrier to the transport of noxious substances, including those from the site of Asarel Medet which is the main cause of the good air quality. That has been established by means of systematic observations in six stations of the air monitoring network in the region (IAE - MoEW).

5.2. Water

Some preliminary studies and an engineering design were developed for Luda Yana Dam by Vodproekt EDI, including hydrological, hydro-geological, and water economy studies, hydraulic calculations, structure designs, management and technology of the construction.

Information from hydro-meteorological stations (HMS) on r. Luda Yana (near Sbor) and r. Strechenska Luda Yana (near Strelcha) was used to determine the hydrological parameters of run-off. The high waters and the river drift to the dam were determined. On the basis of the results obtained, the spillway and the


unavailable capacity of the dam were determined. In order to determine the unavailable capacity, the highly erosive nature of the ground in the lake bed was taken into account.

The required laboratory studies of water quality in the water catchment area were camed out. In 1995, at the request of Water Supply Works LLC - Panagiurishte, analysis of the water in the rivers Elashka, Gumni dol, Okoshka and Muleiska, as well as chemical analysis of the ground water were carried out. The data from previous studies and those of 1995 indicated that the water in the rivers meet the Bulgarian Potable Water Standard BDS 2823183 (Appendix: Water Analysis Results).

During the summer low-waters, the river run-off decreases to partial drying up of the river courses.

Construction of the dam has separated the upper sector of the river from its lower sectors. They are connected through the diversion gallery. Partial drying up of the rivers in the catchment area is typical of the area downstream of the dam as well, due to the fact that there are some water intakes on these rivers where currently water is reclaimed for water supply to Panagiurishte and for industrial purposes. In addition to having a variable flow rate, they are influenced by the precipitations.

The dam basin region is characterized by intensive erosion activity.

At the height where it is built, the dam is a potential risk to the residents of Panagiurishte and the settlements below in the event of of high water. Flowing over the existing embankment threatens to destroy the embankment and cause severe damage by a destructive wave. For that reason Water Supply Works LLC - Panagiurishte and W&S - P SPLLC - Panagiurishte perform regular inspections in the event of heavy rains.

5.3. Geological conditions

Luda Yana Dam is in Sredna Gora Proper. The dam is of a rock-fill type. The geological base consists of Paleozoic Sredna Gora granitoids, constituting part of the South-Bulgarian granites. The magmatic development of Sredna Gora granitoids is characterized by repeated incorporations of granitoid magmas. Three intrusive complexes are distinguished. The region of Luda Yana Dam belongs to the First Complex, and more particularly, to the Smilovene pluton. It is composed of porphyroid granites, granodiorites, tonalites, interconnected by gradual transition. Porphyroid granites and granodiorites are the most widespread. A rich vain phase represented by diverse granitoids, many kinds of aplites and differentiated pegmatites of diverse morphology is connected with the pluton. The rock tops are deeply weathered and cracked, both horizontally and vertically. The process of their weathering has resulted in light clayey-sandy soils, 20 to 100 cm deep that are easily washed away by surface waters and are a source of proluvia.

The Quaternary is represented by alluvial, prolluvial and deluvial depositions of dating back to the Holocene. Deluvial depositions are comparatively rare at the mountain feet. Prolluvial depositions occur mainly in the form of torrent cones while the alluvial ones are mainly concentrated in the valleys and river beds.

The dam will collect water from the rivers Muleiska, Okoshka, Elashka and their tributaries. They are of a mountain type, with high dips of their beds, steep rocky banks and active erosion activity, and thence - deposition transport. It is estimated that every year, on the average 64740 m' of inwash will be deposited in the dam basin. The water catchment area of the dam is about 100,4 km2 and average annual precipitation mass 75300 X 106 m' with runoff coefficient 0,27. The dam is at an advanced stage of construction. The two banks to which the dam is bound are composed of strong granites. Their weathered part has been removed down to fresh rock.

Some additional studies were carried out in August 2007, by driving three test pits each into the clay core and the fill. The samples indicated that the core and the fill were well compacted. The water-pouring tests by the Nesterov method established minor infiltration in the clay core.

5.4. Soils

The soils in the region of Luda Yana Dam are of the Luvisols type cinnamon leached forest soils. They occur in the lower vegetation belt, formed under the influence of xerothermic oak vegetation. On grounds where that vegetation has been destroyed, the soils are exposed to anthropogenic impacts, often causing (as in the case of the dam) intense erosion processes.

l


The soils along the right-hand bank of the dam are heavily eroded, and even the B-level is missing in places. In the reservoir basin, where the soil is relatively well preserved (with an alluvial layer, though shallow) the humus layer has been raked out and stored with a view to the contemplated sanitation of the basin.

The soils on the left slope are shallow to moderately deep, clayey-sandy, highly to moderately stony, low- eroded.

The soils in the river terrace are alluvial, sandy, and deep. In many places of the flooded zone there are small sand borrow pits.

Reassignment of 142 ha of land has been performed after the respective legal procedure. That includes displacement of the road Panagiurishte - Bunay cottage.

The soils in the lake bed and in the region of the dam are not polluted with chemical substances, yet measures shall be adopted against pollution with domestic waste.

5.5. Waste

No construction debris or unregulated waste dumps were found during the walkdown of the Water Power Works.

5.6. Harmful Physical Factors - Noise

Currently, there are no noise sources in the territory of Luda Yana Dam, since the construction has ceased. The background noise is the natural background of the environment and stays within the limits 30 dBA - 43 dBA (in the immediate vicinity of the river).

In the event of single trucks carrying sand fi-om the borrow pit incidentally) there is a minor increase. Noise at the construction site below the dam is higher due to the operating motor depot, but it does not reach the top of the built dam.

5.7. Flora

According to the classification schedule of forest habitat types in Bulgaria, the region of Luda Yana Dam is in the Thracian forest vegetation region, subregion Upper Thracia, Lower hilly-plain and hilly-foothill zone of oak woods, sub-zone of the hilly-foothill mixed deciduous forest (at 500 to 700 m. altitude).

The right-hand slope of the storage reservoir and the areas above the water level are deforestated. Previously they have been occupied by agricultural lands - pastures, orchards and former crop fields. Single fruit trees are left in the dam basin, and ivy trees (Salix alba) along the river. The humus has been removed. The land is used in part for pasture and is not tilled. The left river bank, which is considerably steeper, is afforestated with natural deciduous forest vegetation and with coniferopus woods - mainly Scots pine (Pinus silvestris).

The natural vegetation around the dam basin consisted of Durmast oak offshoots (Quercus dalechampii) with single specimens of Quercus conferta, hombeam (Carpinus betulus), Turkey oak (Quercus cet-ris). The woods are of low density, many of them in poor sanitary status - top drying; 30-40% is subject to reconstruction (cutting and subsequent planting) are utilized for local purposes.

The afforestated area affected by the construction of Luda Yana Dam belongs to Panagiurishte State Forestry. The lands within the dam basin boundaries have been expropriated according to the respective procedure some years ago, and cleared with the exception of a small area (5-6 dca) of Scots pine near the dam.

Protected Naturul Territories

1 l11 There are no protected natural areas in the territory of Luda Yana Dam or its vicinity.

1111 5.8. Fauna

1 Ill 5.8.1 Ichtiofauna

The study was camed out on 4.09.2007. The sector from r. Luda Yana, in the zone of the prospective dam lake by on the basis of some visual observations and fish catches by means of nets were performed.

Luda Yana Dam Environmentul Due Diligmce Report

Survey data on the fish fauna in the region and data from studies for the purposes of the ecological network NATURA 2000 were used.

The river of Luda Yana is subjected to considerable negative anthropogenic impacts. That, and the highly variable run-off conditions in the river are the main factors hindering the development of a sustainable fish association. In the course of some studies for the purposes of the ecological network NATURA 2000 in the middle and lower course of the river, two species included in Appendix I1 of Directive 92143lEEC were noted as protection priorities - Barbus cyclolepis (Barbus plebejus) and Sabanejewia aurata - represented by low-abundance populations. Common minnow (Phoxinus phoxinus) and, as a comparatively rare species, Balkan trout (Salmo trutta fario) occur in the upper course.

The prospective Luda Yana Dam, situated in the upper course of the same name river, is in an advanced stage of construction. A large part of the dam wall has been built, and the integrity of the river continuum is currently maintained only through the bottom outlet. Upon examination it was found that the river sector is too shallow in the ponding area. According to the available information in low-water periods it goes partly dry. Due to the adverse conditions the ichtophauna is on the verge of extinction. The observations carried out for this study confirmed the presence of Common minnow as a dominating species (Appendix: Methodologies and sources).

I I 5.8.2 Amphibia and Reptiles

The iknfolrmation was obtained as a result of a walkdown of the site and study of some available sources on herpetofauna in territory where Luda Yana Dam is situated.

The enclosed Table presents the proven, as well as many probable species in the region of the dam and and in areas to be ponded, their environmental status, locations of occurrence and the source of information. The species established upon the visit on 04.09.2007 are marked with 4907, and those from literary sources - with BC.

One of the unproven species in the region of the dam is the snuke Coronelu Austriucu Iuuri, but it is assumed that it can be found there. The European pond tortoise and the Great Worty newt, although not found at present, are sure to inhabit the future reservoir.

Specie.? compositzon, mvironmmtul stutus, 10cutzon.s und sozirces oj znjormution on Amphzhluns und Reptzles in the region oj Ludu Yunu Dam.

Species

Great Worty newt Yellow-bellied toad Brown toad European tree-frog Big water frog European pond tortoise

Wall lizard Green lizard

Dice snake

Coronelu Austriucu luuri. snake

Notes: BDA - Biological Diversity Act (SG No.7712002.), Appendices Nos. 11, 111 and IV; IUCN - 2002 Red List of Threatened Species; LR - Low risk; BC. Convention on Preservation of the European Wildlife, App. 11, 111; Dir. 92/43 - EU Directive 92/43 on Preservation of the Natural Habitats and Wildlife; VK - Vassil Kovachev.

(Appendix: Methodologies and sources)

Environmental status Location of occurrence

near Panagiurishte Flooded areas Flooded areas Floodedareas Flooded areas r.Luda Yana near Panagiurishte Panagiurishte Around Panagiurishte Flooded areas Panagiurishte Flooded areas Panagiurishte

BDA

11,111 1 I 111 11,111 IV 11,111

I1 I

Info. source:

VK 4907 4907 4907 4907 VK

GB VK

VK

VK

Dir. 92/43 IV I1,IV

IV V I1,IV

IV IV

1V

IUCN

LR

LR

LR

BC

I1 I1 111 11 111 11

I1 11

I11

I1


5.8.3 Mammalian Fauna

The water supply system of Luda Yana Dam is an efficient ecological complex of hydro-engineering facilities for potable water supply that form an integrated ecosystem in order to assure the balance of the disturbed environment through restoration of the water balance in the valley of Luda Yana.

In the region of Panagiurishte Municipality there are large natural forest massifs of Durmast oak, hombeam, and in the higher parts of the mountain - high beech-tree woods. Woods of Scots pine, Austrian pine, red oak, walnut, etc., were created in the place of forest destroyed in the past and on non- tillable lands. There are also some detached pasture lands in all parts of the mountain. A certain number of animal species are preserved on the territory of the Municipality in spite of the urbanization and strong anthropogenic impact on the environment.

The game preserve in Panagiurishte covers an area of 17 500 ha, inhabited by Red deer, Fallow-deer, Wild boar, Roe deer and Mouflon. An increase of predators - wolves, foxes, jackals - is observed recently. The route and survey methods were applied in the status assessment. Some bibliographical sources were used.

The Sredna Gora region is inhabited mainly by Central-European animal species. The big mammals met here are Roe deer (Capreolus capreolus) and Wild boar (Sus scrofa), and after the artificial resettlement and successful acclimatization of the Red deer (Cervus elaphus) it can be seen in some areas of the Sredna Gora region.

The predators observed comparatively frequently are the Fox (Vulpes vulpes), very rarely the Wolf (Canis lupus) and the Brown bear (Ursus arctos), as well as the species entered in the IUCN 2000 Red List. Comparatively fiequent are the Hare (Lepus capensis), the Beech marten (Martes foina), the Squirrel (Sciurus vulgaris).

The small mammals permanently inhabiting the reglon are: Rodents (Rodentia) - various kinds of Mice (Apodemus spp. and Mus spp.), Pile voles (Microtus spp.) and insect eatlng species (Insectivora) - the Hedgehog (Erinaceus concolor), quite few Moles (Talpa europaea) and Long-tailed shrews (Sorex spp., Crocldura spp.). It should be noted that the zoological explorations in the region are extremely scarce (Appendix: Methodologies and sources).

5.8.4 Ornitofauna

In zoogeographical aspect, the omitofauna is of a palearctic type, and consists mainly of species inhabiting the moderate latitudes. Some species typical of the southern parts of the European subcontinent can also be seen in the region. 85 bird species are registered in the range of the prospective dam and near It.

That species composition can be evaluated as rich, considering the small area of the dam site and the adjacent lands, one of the reasons being the diversity of habitats- natural deciduous forests, mainly oak, coniferous forest plants, herbaceous associations; large, open grasslands with single trees; two rivers; the closeness of the town. Nevertheless, that specles composition should not be defined as final during the seasonal and other migrations, some more species may be found in such cases. In that connection it should be stressed that, upon investigation of the effect of Asarel-Medet Mine AD on the omitofauna in the region, a species composition of 99 bird species was reported.

Of the species nesting in the region, the Chaffinch and the Redbreast (robin) are the most numerous; also the Blackbird, the Chiffchaff, the Blackcar, and the Great tit are represented by a considerable number of specimens, resp., couples. The Red-rumped swallow is the most numerous of the swallows, followed by the Country swallow. The Sky lark, the Buntling, the Red-backed shrike are represented in the open grasslands, and near the town - the Crested lark.

The species presented in Appendix 2 (plant and animal species endangered by extinction, preservation of which is a priority) of the Biological Diversity Act are:

1. Golden eagle (Ayuilu chvysuetos (L.)) - flitting and flyng round specimens

2. Hen harrier (Circus Lyuneus (L.)) - in the autumn-winter period

3. Merl~n (FuIco columhurius L.) - only in the autumn-winter period

Luda Y ana Dam Environmentul Due Diligence Report

4. Short-eared owl (AsioJ2ummeus (Pontoppidan)) - in the autumn-winter period

5 . Bee eater (Merops upiuster L.) -during the seasonal migrations

6. Spotted Synan woodpecker (Dendrocopos syrzucrus (Ehr.)) - incl.in towns

7. Wood lark (Lzrllulu urboveu (L.))

8. Red-backed shrike (Lunius collurio L.)

Only 8 of total 85 species are listed in Appendix 2 of the BRA. None of them are related to the river courses. Only flitting and flying round specimen of the first two species have been registered - Golden eagle and Hen harrier. Specimen of the next 2 species - Merlin and Short-eared owl - only hibernate in the region, flocks of bee eaters are most frequently registered during seasonal migrations. The remaining 2 species - the Spotted Syrian woodpecker and the Red-backed shrike are quite numerous in different regions of the country as well as in the region of the project site (Appendix: Methodologies and sources).

5.9. Landscape

The changes in landscape environment in the considered region have already occurred to a large extent. The wall of Luda Yana Dam has been built up to 30 m height, the ligneous vegetation has been cleared almost completely, the humus on the right-hand bank is removed. The stone quarry and the sand and clay borrow pits have been developed, and the construction site of the dam is outlined.

Suspens~on of the construction has a negative effect on the landscape because erosion is developing and the measures needed to recultivate the areas disturbed by the construction and finishing works on the facilities have not been performed.

5.10. Health Factor

Luda Yana Dam is built about 2 km upstream of Panagiurishte. Asarel-Medet, a leading copper ore mining and processing company is in the same region. It is the main source of point and scattered air pollution (dust, NOx, SO). There are several high-technology enterprises for optics and optical devices, textile industry. The region has a rich historical and cultural heritage, and tourism is developing on that basis. Irrespective of that, the number of population in the region is showing a downward trend, and the negative population growth in 2005 reached -9,O %o, i.e. values higher than the average figures for the country - -5,4%0, but still lower than the data of villages - -12,7%0.

The leading causes of the death rate are the diseases of blood circulation organs, acute myocardial infarct, hypertension and the brain vessel diseases, cancer and diseases of the respiratory system.

The infectious diseases carried by water in the districts of Smolian, Veliko Turnovo and Pazardjik in 2005 and 2006 vary with respect to: dysentery (Shigelosis) 9,9 to 44,4 per 100 000; virus hepatitis 44,6 to 180,3 per l00 000. These data are within the average for the country (sporadic cases). There is no data about connection between these diseases and water quality. Dangerous cholera and typhoid fever infections have not been registered in the country for more than 40 years.

1111 No moving of population is necessary.

llll 5.1 1. Common Heritage

There is no information about presence of any historical, archaeological or architectural finds. No such finds have been recorded during the construction of Water Power Works Luda Yana. In the event that such finds are discovered in the process of the project completion or upon sanitization of the lake, according to the Cultural Heritage Act, the Archaeological Institute with Museum shall follow the required procedure.


W. FORECAST OF EXPECTED IMPACTS ON THE NATURAL AND SOCIAL ENVIRONMENT DURING THE CONSTRUCTION OF LUDA YANA DAM

6.1. Atmospheric air

6.1 .l Climate

Building of the dam will lead to an inevitable change of the thermal-physic properties of the bearing stratum and thence, of the microclimate. That change, however, affects only the dam area, and as a result may have a beneficial eggect on the unaffected flora and fauna. The presence of a large body of water will reduce the daily temperature contrasts, and will improve the humidification conditions. At the same time, the presence of an artificial reservoir of the scale of Luda Yana Dam will by no means change the climate in the respective climatic region.

The recent decades are characterized by temperature fluctuations and climate changes manifested by alteration of dry and rainy years, as well as by extreme phenomena such as long periods with high temperatures, long draughts and heavy precipitations. In order to guarantee a sustainable, environmentally friendly and safe management of the dam, a meteorological monitoring system shall be established. It is preferable to set up an automatic meteorological station continuously detecting the main meteorological elements - air temperature and humidity, wind direction and speed, solar radiation, quantity and intensity of precipitations.

Luda Yana Dam will not have a negative impact on the local climate conditions in the region. With correct management of water resources and folrowing of the recommendations, its operation will not have any adverse effect on the environment and population.

(Appendix: Methodologies and sources - Studies and Publications on a 4-year Experiment at G. Dimitrov IKoprinkd Dam with area 1120 ha).

6.1.2 Atmospheric air quality

During construction

Luda Yana Dam is 2 km away from the nearest settlement, the town Panagiurishte, and separated from it by a natural sheld of hills. Immadiately after the dam, the river runs round a hill covered with forest on its left bank which provides natural shielding from the town. The routes for transportation of materials for construction of the dam do not cross any settlements. The rubble, sand and clay borrow pits are inside the lake basin and can be reached by the road to Bunal Cottage. Only cargo vehicles carrying equipment for the facilities, cement and aggregate materials for the concrete facility will pass through Panagiurishte.

The broken ground in the region does not permit transport of noxious substances, including those from the site of Asarel-Medet, as established by systematic observations in six stations of the air monitoring network in the region. The same geographic factors will help against the spread of pollutants from the construction site to Panagiurishte.

The sources of noxious emissions into the air during construction are related to performance of the construction works (on the "Dam" construction site and after PWPP is designed, on the PWPP construction site).

The technologies applied to build the dam involve making of the dam embankment, clay core, draining fills, completion of the intake tower, dam crest, spillway, chute and stilling basin; extraction and transportation of stone, sand and clay.

At every material borrow or construction site the noxious substance concentrations, and more particularly

dust, are expected to exceed the permissible limits: 500 Clg/m3 and 250 Clg/m3 and fine particulate matter

(FPM) < 50 pg/m3.

The rest of the gaseous pollutants will be emitted by construction machines and transport vehicles. Thanks to the open terrain at the upstream side of the dam, they are not expected to accumulate in the air.

Pollutants from the motor vehicles will appear on the 5-m sector of the road to the clay borrow pit on the future dam bed and along the 500 m road to the quarry; however, no air pollution is expected during the transportation owing to the ground profile.


During the construction of Luda Yana Dam no change of air quality will occur in Panagiurishte or in the other settlements due to their remoteness and the natural screening from the construction site.

PWPP construction on both possible sites of its location will not lead to change of air quality beyong the work environment and will not create any risk to the population.

During operution

During operation Luda Yana Dam will have no effect on air quality.

6.2. Water

During constr-uction

The higjh waters and inwash to the dam are defined in the design. On the basis of the results obtained, the spillway and the unavailable capacity of the dam are dimentioned. In the process of calculating the unavailable capacity, erosion of the lake bed was taken into account.

The main pollution source is the Asarel Mine, especially during heavy rain, for which reason the design contains special measures for their diversion from the reservoir and beyonf the water catchment area of the reservoir. According to data fiom the Water Supplt Works - Panagiurishte, Asarel-Medet JSC have implemented the planned measures and release their effluents away fiom the reservoir catchment area.

About 6 km away there are two buildings used as temporary dwellings. They are inside Sanitary Protection Zone 111 according to preliminary information. After the zones are calculated, the required measures will be proposed with respect to them, if they remain in Zone 111.

The water quantities that would be needed during construction and the water sources for them were determined. They have supplied the site during the construction work before 2000 and can supply it during its further construction. The problems with sewerage from the construction site currently used by Hydrostroy (canteen, offices, warehouses and utility premises with bathrooms) are solved. No construction camp will be built.

The the excavation works for construction of the dam and the 30 m height of the dam already built ensures protection of the river water during completion of Luda Yana Dam. Upon construction of the spillway and chute, a mechanical clarifier has to be built at the stilling basin for precipitation of the construction effluent. Provided that the condition of the building machines and the use of the motor depot on the construction site of Hydrostroy are properly controlled, there is no risk of water pollution in the river by hels and lubricants downstream of the dam due to spills and leakages.

Chemical toilets shall be provided for the sewage on the construction sites and a contract shall be concluded with a firm for their servicing.

During operution

After establishing the water quality, it was planned to design and build a PWPP.

To ensure the purity of water in the dam, it is planned to sanitize the lake basin and design sanitary protection zones.

For the sewerage generated by the operating staff of the dam and of PWPP, chemical toilets have to be erected and maintained by a contracted firm.

The construction of Luda Yana Dam disturbs the natural run-off regime of r. Luda Yana. The amount of flooding flow left in the river is important.

In order to preserve the river ecosystem of r. Luda Yana in the process of construction of Water Power Works, it is planned to discharge 0,170 m l s flooding flow (ecological release).

An additional model study was carned out to define the flood~ng flou by a methodology developed in Bulgar~a A mathematical model based on the dependencq of zoobentos (Macroinvertebrates) total abundance 011 the run-off was used. The change In total abundance is v~ehed as a probabil~stic process In order to establish the model parameters, data 011 correspondmg values of total abundance and average monthly d~scharge, coverlng an overall vegetation per~od are needed For that purpose, summarized data from long field observat~ons throughout the territory of Bulgaria uas used The Flscher criterion as well


as total abundance \anations were ~mplemcnted to assess the significance of zoobentos cenosis In different tloodtng cond~t~ons. A software was developed for the purpose of. these calculat~ons

The flooding conditions are detennined by the following pattern: modeling of zoobentos development under natural run-off conditions; modeling of the disturbed run-off conditions in different flooding modes; modeling of zoobentos development in various regimes of run-off disturbance; comparison of the series of average monthly values of zoobentos total abundance in disturbed regime, to that obtained in natural conditions, in order to select a proper flooding mode.

Analysis of the results of the model study showed that the flooding flow proposed in the design will sustain a stable ecosystem and, at the same time,will meet the additional requirements for improvement of the river's condition in the sector downstream of the dam and in the region of Panagiurishte (Appendix: Methodologies and sources).

The ecological release amount 0.170 m3/s is considered in the design of Luda Yana Dam as well. Due to the construction of Asarel-Medet and the presence of other commercial water consumers, the water balance of Luda Yana river is disturbed. Water discharges of 0.170 m3/s contribute to the maintenance of a good ecologic condition of r. Luda Yana downstream of the dam and of the river and forest ecosystems and natural areals further down the river course.

Work on the problems of the permissible runuff minimum in water courses downstream of hydro- engineering facilities in Bulgaria has been going on since 1987. Over the recent decade various possible ways of releasing such water from the reservoirs were investigated. At Luda Yana Dam this will be done through the Intake Tower from a height suitable for the ecosystem (10 m below the lake surface). If dewatering of the river is established in natural conditions during a low-water season, such releases into the river will be secured

In order to reduce the amount of inwash into the reservoir due to erosion, an "Erosion Control Engineering Project" developed by Agrolesproekt SPLLC has to be implemented.

6.3. Geological Conditions

During construction

Irrespective of the satisfactory results of the geological engineering and hydro-engineering explorations (as designed and in 2007), it is recommended to drill three test boreholes through the whole core stem and conduct test filtration studies in them.

During operution

With a view to monitoring water infiltration in and under the dam, build a monitoring piezometer system whereby the quality of water infiltrating through the dam will be monitored for presence of suffusion, as well as the behavior of the dam itself. These are dam and foundation strains, and condition of the diaphragm, crest and berm subsidence and displacement.

Regular observations shall be carried out of water afflux into the dam basin and the run-off from it in order to prevent emergency situations in cases of heavy precipitations and intensive thaw.

The dam is situated in a zone with 81h degree of seismicity. The dam is a 2"d class structure which determines the design and operation requirements (Appendix: Regulations).

6.4. Soils

During construction

Land reassignment was performed by the respective procedure. Land expropriation was completed in conformity with the prevailing regulations (Panagiurishte State Forestry).

Due to active erosion in the lake basin and the adjoining areas, at the start of construction, implementation of the "Erosion Control Engineering Project" developed by Agrolesproekt SPLLC has to be commenced.

The impact of Luda Yana Dam completion on the soils is related to the fact that the Water Power System will be built on lands subjected to strong anthropogenic influence.


The ligneous forest vegetation has been cleared and a major part of the humus layer has been raked out and deposited at the humus disposal site.

A new construction site is not planned. Hydrostroy's site will be used.

Loading of the soil with dust, combustion gases and blast works during the construction on the adjacent lands will be insignificant.

Stripping of the remaining humus from the lake basin shall be done with consideration for the schedule of dam commissioning and the risk of triggering erosion processes.

During operution

The total pondable area is 142 ha which, according to the forest development plan of Panagurishte State Forestry, belong to it since 2002 and are exluded from the dam construction area.

6.5. Waste

During construction

Upon resumption of the construction of Luda Yana Dam, the organization of waste collection, temporary storage, transportation and disposal shall be restored in compliance with the Waste Management Act.

All waste types with their sixdigit codes are defined in accordance with the types indicated in the Waste List in Appendix No.1 to MoEW Regulation No.3101.04.2004. on Waste Classification.

Domestic waste shall be collected transported and deposited at the disposal site of Panagiurishte.

The waste wooden packings and metal from the equipment are utilized in the construction or sold.

The construction debris - spoil material - is deposited at a disposal site. The waste from the disposal site is utilized in recultivation and construction of the road to Bunai Cottage.

For the remaining waste - concrete, bricks, tiles, earthenware and ceramics - a landfill cell at the disposal site of Panagiurishte shall be rented. The metal scrap shall be delivered for reprocessing. Waste oils and liquid fuels will be treated by a firm with which a contract for their recycling is concluded. In the case of waste with "*" code (hazardous waste), a firm possessing license for their treatment will be contracted. The problems with generation and disposal of waste from the PWPP will be solved with the design of the plant.

During oper-ution

During operation, the organization of joint treatment of the domestic waste generated by the dam and PWPP operating staff, together with that of Panagiurishte will be preserved. At all phases (repair works ~ncluded) the requirements of the Waste Management Act shall be met.

6.6. Harmful Physical Factors - Noise

During constr-uction

The ambient noise sources are the majority of works involved in completion of the Water Power System construction pumus stripping, partly excavation, filling, concrete, shuttering, erection, drillinghlasting, transportation works). The main machines and equipment used are: dredger, bulldozer, crane lorry, concrete mixer, concrete placing equipment, crushing plant, heavy-duty trucks, with noise levels within the range 80 dBA -105 dBA, reaching 120 dBA at the drilling equipment. Blasting creates pulse noises with levels depending on the blasting system. The building machinery will be concentrated at the dam site. The building equipment will be concentrated on the dam construction site. The expected equivalent noise levels in the immediate vicinity of the groups of operating machines and facilities are about, sometimes more than, 90 dBA.

The network of service roads for transport vehicles used for the construction has been built. The heavy duty trucks, depending on the traffic intensity, will create noise at the equivalent level of about 60-61 dBA, at 7,5 m from the axis of traveling. The boundary values of noise level for the different territories and zones defined in Regulation No.6 on Environmental Noise Indicators (Ministry of Health, Ministry of


Environment and Water, 2006) are: for residential areas: daytime - 55 dBA, evening - 50 dBA, night time - 45 dBA; for industriallwarehouse zones: daytime, evening and night time - 70 dBA.

The settlement nearest to the project site Panagiurishte, is about 2 km away from the site of the prospective dam. From there, there is not direct visibility to the town. Due to the sufficient distance from the town, the construction activity at the dam will not disturb its residents.

The transport vehicles serving the construction works will travel only from the lake bed to the dam and will not cross any settlements. The trucks carrying equipment, cement, reinforcing steel and debris, will travel round Panagiurishte, however, some more appropriate routes can be arranged.

During operation

During operation of the site the PWPP equipment (pumps, mixers, air blowers, hydrophore, etc.) will be a source of noise. According to their technical characteristics the emitted noise levels are within the limits 70-75 dBA. The equipment will be erected in a solid building, with concrete structure and expected noise insulation by the face walls minimum 35 dBA. The noise levels outside the building are not expected to exceed 45 dBA which is far below the 70 dBA sanitary limit. The PWPP will be a far from Panagiurishte on any of the two possible sites.

6.7. Flora

During construction

During the construction of Luda Yana Dam clearing of the remaining small area (0,5-0,6 ha) of Scots Pine near the dam shall be completed and sanitization of the lake area of 142 ha shall start. During the construction, no negative impact on the off-site (beyond the pondable area) forest ligneous, herbaceous and fruticose vegetation is expected.

The affected vegetation on the PWPP site will be defined after development of the design.

During operution

According to the design, 142 ha of Panagiurishte SF excluded from the forestry's fund for construction of the dam (the lake area plotted in white on the Forest Map) will be flooded in the dam basin.

Due to cutting of the ligneous forest vegetation with the exception of the Scots Pine, stripping of the humus over the greater part of the lake area and a result of a walk down of the whole lake area in September 2007 it was found that there are no rare or endangered species referred to in the law provisions (Regulations).

Securing of the minimum permissible discharge into the river Luda Yana during the summer low water and improvement of the water balance of the river in the remaining part of the year will create better conditions in the river sectors downstream of the dam for the forest ecosystems and for the good ecological state of the river course across Panagiurishte.

6.8. Fauna

6.8.1 Ichtiofauna

Ichtic?fuuna Impuct Prognostic A.s.sessment

In the event of implementation of a zero scenario (preservation of the current state) there are no prospects of restoring the river continuum and improving the ichtiocenosis condition in the affected sector of the Luda Yana.

The construction works for completion of the dam are not expected to have a direct negative impact on the ichtiofauna in the middle course of the river.

Putting in operation of Luda Yana Dam will create prerequisites for stabilization of the run-off conditions in the middle course of r. Luda Yana through controlled release of flooding discharges.


Prerequisites will be created for development of a stable ichtiocenosis on the basis of the Balkan trout population and its attendant species. The Balkan trout population can develop naturally through ingress of fish from the upper course of the river and by means of artificial fish breeding.

Although the river biota in the middle course of Luda Yana is exposed, even to this day, to considerable negative anthropogenic impacts, a specific form of negative impact may be presumed upon operation of the prospective dam (related to improper control), namely - water discharge from the deep strata of the dam lake, characterized by permanently low temperature and increased nutrients content.

In order to prevent the above-listed possible negative impact it is necessary to ensure adequate tlooding of the river bed downstream of the dam with a view to creating an acceptable living environment for the existing species, corresponding to the specifics of their biology. "Ecological releases" shall be drawn fiom depths not exceeding 10 m (Appendix: Methodologies and sources).

6.8.2. Amphibia and Reptiles

Amphihiu and Reptiles Impuct Prognostic A.sse.ssment

The environmental status of the majority of species is not high. They are common animals, widespread in the country. Of 10 species listed, seven are closely connected with the water and a new reservoir is by no means a threat to them. This is exactly the category including the three species on the "Red List" of the International Union for Conservation of Nature (UICN). The rare wall and green lizards and the Coronelu Austriucu luuri. Snake which is not proven in this region, will retire higher up the slopes and their populations in the region practically will not be afyected.

Almost all Amphibians and the Dice snake In the walked-down area subject to flooding were found in bogs along the river formed in former sand and gravel borrow pits. Only the big water frog - the dominating species in the region - was found in large numbers in the river itself. Of the three remaining frog species, only 1 to 4 specimen were found, and these were quite small specimen that had recently passed through their metamorphosis. Only one specimen of the Green lizard was found. The population density of all established species (with the exception of the Big water fiog) was very low.

The observations on other water basins with the nature and conditions of the one under construction indicate that primarily the Big water frog "flourishes" in them. A few years after ponding that species is likely to become abundant along the water front. The remaining amphibian species will use the reservoir for egg laying and development of the larvae. Water snakes and tortoises will probably exist in small numbers in less accessible places. There will not be any significant changes in the abundance of the three terrestrial reptile species.

No special measures are needed for protection and monitoring of the reptiles and amphibians in the region.

According to data from conducted research, about 70% of the above-mentioned species in the territory of Luda Yana Dam inhabit the shores of small dams.

The construction and operation of Luda Yana Dam near Panagiurishte will not have any negative consequences to the amphibian and reptile populations in the flooded areas and the nearby areas (Appendix: Methodologies and sources).

6.8.3 Mammalian fauna

Mummuliu Impact Prognostic Assessment

In general, the impact of the ponded area, envisaged to be about 142 ha and the dam will not have a negative impact on the existing mammalian fauna. Due to the relatively limited time limit for construction works 70% of which are already completed, they will not affect the feeding base or habitats of any individual mammal species and will not have any effect on their total abundance. The completion of Luda Yana Dam will have a beneficial effect on the biological diversity in the region. Mainly heavily eroded lands will be flooded.

It can be stated with confidence that completion of the dam will not have a negative impact on the habitats and abundance of the mammalian fauna. Withdrawing to higher places, the migrating specimen will not come upon a territory overpopulated by some population where they will lack hiding places or


will be deprived of their feeding base. The mammalian fauna inhabiting the particular region and is presented in the Environmental Assessment is typical of considerably larger territories than the area to be ponded by the dam. (Appendix: Methodologies and Sources)

6.8.4 Ornitofauna

>ssment OrnitoJuunu Impuct Prognostic Assc. .

The dam construction has already disturbed the ground surface and and the vegetation on it as well as the habitats of certain specimens, couples of the bird species living there.

In the course of construction works and operation, of the species listed in Appendix 2 of BDA only habitats of the Red-backed shrike will be affected, and to a far smaller extent - those of the Spotted Syrian woodpecker; however, these two species are abundant in various parts of the country, including that region. The couples whose nidification territories are affected, will occupy new ones in the vicinity of the dam, where there are enough territories for nesting of these species.

Discharge of ecological releases is planned, therefore, implementation of the project will not affect the animal species inhabiting that part of the river, or those using the river water for drinking and bathing, including some bird species feeding on the river banks and shallows.

The scope of the investment proposal does not include places where regular concentration of large numbers of certain bird species has been registered.

After ponding of the dam, some fish species typical of, or inhabiting still and slowly running waters, may appear, and their quantity may increase with time, which, in its turn, will result in increase of the feeding base for some fish catching diving bird species - Grebes (Podicipedidae), Cormorants (Phalacrocoracidae), Smew (Mergus ulhellus L.), Red-crested pochard (Nettu rujinu (Pallas), Aythyu sp. Etc.,) etc., and possible amval of specimens of such species in regular intervals. The lake will probably attract also specimens of some other wading and water loving bird species - Ducks (Anus sp.), Storks (Ciconiu sp.), Herons (Ardeidae) etc., including nidification places in the dam range and in the region. In that manner, the diversity of the omitofauna species will increase as a whole within that part of the river and in that region of the country, which can be evaluated positively.

Thanks to its nature (area 142 ha and length 4,5 km), the site cannot have any negative impact on bird migration in that region of the country, and after the growth of its fish resources, it can be only beneficial to the migrations and hibernation of fish eating species.

No unwanted, or negative changes should be expected in the status of conserfvation-significant species and their habitats as a consequence of implementation of the investment proposal. The area occupied by the water reservoir, due to its insignificant dimensions, will not result in significant reduction of the feeding base of the species inhabiting the region, and that of certain species may even be increased (Appendix: Methodologies and sources).

6.9. Landscape

The proper architectural solution, site recultivation and ponding of the dam will create the new landscape.

The assessment of the self-purificatiuon and restoration potential of the landscape in the considered region lays the stress on its significant potential for fitting into and matching the scale of Luda Yana Water Power System to the natural environment. Lakes are not a foreign element to the mountain, and the new artificial will fit into the natural landscape.

6.10. Health Factor and Social Significance

During construction of Luda Yana Dam the excavation, filling, concrete and other types of construction works that are sources of noise, dust and emissions of combustion gases from the building machines and motor vehicles cannot have a harmful health effect because there are no settlements in the vicinity and the construction works will go on for a limited time.


During the construction, a number of factors of the work environment and process, such as: adverse microclimate, noise, vibrations, air pollution, traumatism, physical strain, may have an adverse health effect on the workers.

During the construction, the factors of the work environment may have certain impact on the workers' health. The effect will be temporary and, provided that adequate measures are adopted for protection of the workers' life and health, it will be minimized.

A beneficial social effect is expected with respect to the population thanks to creation of temporary jobs at the construction site.

Dzlring Operution

No increase of humidity and /or climate change is expected during operation of the dam. The dam operation will not have an adverse effect on the population in the nearby settlements.

A beneficial health and social effect with respect to the population in the region is expected as a result of: opening of permanent related to operation of the facility as the potable water source. The improvement of potable water supply will be a guarantee against epidemic diseases spread by water. Water consumption meeting the Bulgarian and European standards will have an indirect health effect on the population.

6.1 1. Safety of Luda Yana Dam

Dam safety is of substantial economic, social and environmental significance.

Assurance of the safety of large dams such as Luda Yana shall underlie the Investment Proposal from the very beginning.

Earth- and Rockfill Dam Dimensioning Rates 119861, Civil Engineering and Architecture Newsletter - issue Nos. 1 and 6 , and Hydro-Engineering Facility Design Rates, Basic Principles promulgated by the Ministry of Construction and Urban Development and Ministry of Energy, 1985 (in Civil Engineering and Architecture Newsletter - issue No. 11i1985) are applied in the dam design process in Bulgaria. Due to expired limitation term of the above-listed documents and absence of an Eurocode in the European Union for the design of hydro-engineering facilities, internationally accepted codes are applied, such as those of U S Department of the Army Corps of Engineers, the German codes, etc., as well as Bulgarian codes and regulations on building structure design, and integrated into the Design Contract. The hydrological risk in the event of passing of high water with a certain probability of occurrence coefficient, and the seismic risk in the event of earthquake of certain intensity are assessed in the process of design. Within the design, a section on Control and Instrumentation (C&l) systems is developed. As of the date of site commissioning, an C&I Monitoring and Measurement Schedule, Operating Instructions, and Accident Action Plan (Emergency Management Plan) shall have been prepared by the Designer for the construction and design phases.

The availability of, and compliance with normative requirements shall be verified before commissioning of the site by the State Acceptance Commission (Regulation No. 212003 on Commissioning of Construction Works in Bulgaria and the Minimum Guarantee Periods applicable to Acceptance of Construction and Erection Works, Facilities and Construction Sites (State Gazette No. 7212003). A definite part of the operation staff shall be appointed at the commencement of construction, and upon commissioning the complete operating team shall be appointed. The service life of dams is assumed to be 100 years (the time of reaching the volume of silt defined for the reservoir).

For the sake of dam safety, the operation of dams shall be carried out in conformity with Regulation No. 13i29.01.2004 on the Terms and Procedure of Operation of Dams and Related Facilities. The Monitoring and Measurement Schedule shall be implemented at every stage of dam operation, and updated at regular intervals. On the basis of measurements made by the operating staff, the structural and technological security, as well as environmental impact of the dam will be assessed (the degree of risk to tangible property and people's lives and health). The security in normal, extreme and accident operation conditions is assessed. Twice in a year, the operating teams will perform visual inspections of the dam, the water area and the related facilities which will be reflected in a report containing the relevant decisions. Analysis of the dam condition shall be prepared or assigned by the operating entity (on the basis of technical inspection results and l&C data). Such analysis shall cover a period not exceeding three years and shall be accepted at a Technical Expert Board appointed by the Owner. The inspections for

Luda Yana Dam Environmentul Due Diligcwce Report

safety assessment of the dam and the related facilities shall be performed by experts not related to the operator organization. The first inspection shall be carried out before the start of ponding, the following inspection - in the end of the initial operation phase, not later than the fifth year of commercial operation, and further inspections - by decision of the Technical Expert Board appointed by the Owner.

In the event of a high water flow with a level near the highest water level (HWL) and upon detection of an earthquake with intensity exceeding 61h degree by MSK-64, inspections and full measurements of all facilities shall be made using all C&I devices in conformity with the Schedule, with record and status analysis.

In the event of emergencies and accidents, the Accident Action Plan shall be operated. Such Plan contains the assignments, relations and responsibilities of the institutions obligated on the strength of the Crisis Management Act.

The ecological risk for dams and related facilities is related not only to their safety but also to the risk of changing the quality of the environment in all ~ t s components, as indicated in Part 6 of the Ecological Analysis. With a view to the prognostic estimates, the environmental risk for Luda Yana Dam is assessed in a Risk Schedule

6.12. Cross-border Effect

Luda Yana Dam is situated 2 km above the town Panagiurishte, Pazardjik District. The water catchment area of the river is entirely in Bulgarian territory.

During the construction phase, no cross-border effect will be manifested due to the site situation in the interior of the country.

During the operation, the volume of retained water from the run-off of r. Maritsa at the border is considered a cross-border effect. The run-off of r. Maritsa at the border is calculated in General Schedules

of Water Use in the Basin Management Regions of R. Bulgaria (BAS-IW 2000) as 3403,4.106 m31year. About 500 small and large dams are built in the water catchment area of r. Maritsa (the largest reservoirs

are those of Vacha Dam with capacity 226.10~ m3, Belmeken Dam with capacity 144,04.106 m3, Batak Dam with capacity 305,830.1 o6 m3).

Luda Yana Dam is built for the purpose of water supply. The dam capacity to be used for water supply is

defined by the Designer as 6,0.106 m31year. Eighty percent of the water fed to the water supply system is returnable, that is, it returns to the rivers through the sewer systems. The water retained in the territory of

R. Bulgaria amounts to 1,12. 106 m31year, or 0,035% of the run-off of r.Arda at the border.


VII. LEGISLATIVE FRAMEWORK AND ORGANIZATIONAL STRUCTURES FOR MANAGEMENT OF THE ENVIRONMENT

Design and construction of Luda Yana Dam were performed in compliance with a Council of Ministers' decision. A decision was made to stop financing of the dam. In these circumstances the Consultant of the invited tender financed from the grant, will prepare Terms of Reference for design updating and for the construction.

An EIA has been developed for Luda Yana Dam and a procedure was started. A public discussion was held in Panagiurishte after which, due to lack of a design for PWPP, the procedure was terminated by MoEW. According to the law provisions, first a design for PWPP shall be developed, and then the procedure for a new EIA shall be followed: ElA Terms of Reference are developed; a competition is held for selection of a EIA Developer Team; the Team presents "EIA Scope and Contents"; the required consultations on the scope and contents are carried out and opinions are obtained, including those of the competent authority (in this particular case from RIEW - Pazardjik); an EIA is developed; a public discussion and Environmental Expert Board Meeting of RIEW - Pazardjik are held. Subject to positive decision, a request to the East Aegean Region Basin Directorate (BD) - Plovdiv is filed for granting of consecutive permits for water use and water basin use.

A complete list of the laws, regulations and other acts relevant to an environmental due diligence report is enclosed (Appendix: Regulatory Acts).

In the process of construction, supervision of the implementation of environmental protection measures is exercized by the Regional Inspectorate of Environment and Water (RIEW) - Pazardjik, and in the event of receiving reports about health risk to the population, by the Regional Inspectorate for Protection and Control of Public Health (RIPCPH). The environmental engineer of the Municipality of Panagiurishte performs regular checks of measure performance and of the condition of the environment, and reports the findings to RIEW - Pazardjik. In the event of non-compliance, RIEW - Pazardjik imposes penalties, sets deadlines for performance of the prescriptions and, in the last resort, terminate the non-conforming activity.

The Own-monitoring Plan for the construction and operation phase shall be developed at the start of construction and operation and approved by BD, RlEW and the Ministry of Environment and Water (Implementation Agency for Environment - IAE). It shall be updated annually and approved by these three institutions. In the end of every year they shall receive reports on the basis of which some additional monitoring requirements can be set, or some requirements can be withdrawn. The monitoring term shall be defined in the EIA. The Ministry of Health (MH), through its subdivision RIPCPH, and Water and Sewerage - P - Panagiurishte, shall have the standing responsibility for water quality control and, as required, inclusion of the dam into the National Monitoring Network under MoEW (IAE).

VIII. ENVIRONMENTAL IMPACT MITIGATION PLAN

A significant part of the environmental impacts from construction of Luda Yana Dam to 30 m height of the dam have been consummated.

About 70% of the dam construction works were performed before 2000: excavation works, 30 m embankment, diversion gallery, access galleries on both batters; civil part of the intake tower, transformer kiosk; 70% of the anti-filtration measures and other auxiliary or temporary works; excavation of the spillway and chute; operating quarry, clay and sand borrow pits, humus storage site; the road to Bunai Cottage has been displaced; the road network is 100% ready. The remaining works are building of the embankment to crest elevation, the spillway and chute on the dam, erection works on the mechanical equipment and electrical installation.

Building of the dam to 30 m height, and of the cofferdam integrated in the dam will protect the water in the Luda Yana during the completion of the dam. In parallel to construction of the spillway, a mechanical clarifier shall be built at the end of the stilling basin for settling of the construction effluents.


The remaining construction works require adherence to the process of consecutive building of the dam and the asphalt-concrete diaphragm, of the grouting and quality control. In the dam construction practice these are activities in which the construction companies have the needed experience (there are 16 high rock-fill dams in the country, such as Belmeken Dam - 98 m and 98 high earth-fill dams such as Ogosta Dam, 59 m).

In these circumstances, an Environmental Impact Mitigation Plan is proposed. It includes measures required both during construction and operation of Luda Yana Dam

Atmospheric air

8.1. Restrict land disturbance within the construction time limits; water sprinkling;

8.2. Use mobile water sprinkling systems for dust suppression, on the temporary roads across settlements and at the construction sites;

8.3. The operation of the building machines and motor vehicles shall be accompanied by periodical adjustment of the diesel and gasoline units; the daily schedules shall be observed for the purpose of maximum efficiency; minimize the ,,idle running" of machines;

8.4. The physical condition of the building machines and motor vehicles shall be checked every shift for breaks, spills and leakages. Sequestrate the pollutants in emergency situations.

Water

8.5. Construct a water meter station in the dam lake tail for metering of water inflow.

8.6. Construct, in an appropriate place downstream of the bottom outlet, a measuring template for monitoring the ecological releases dischared from the dam lake to be monitored.

8.7. On the basis of the design of sanitary protection zones I, I1 and 111, benchmark zone I;

8.8. Sanitize the reservoir bed;

8.9. Secure delivery of ecological discharge at the rate 0,170 m3/s from the intake tower level;

8.10. Erect stationary chemical toilets during the construction and operation phases.

8.1 1. Maintain, for the time of construction, delivery of water for water supply purposes from the lake basin, with its interruption at an appropriate phase of commissioning;

8.12. During the construction, build a mechanical clarifier downstream of the ski-jump for settling of the construction effluents before their discharge into the r. Luda Yana;

Geological Conditions

8.13. Drive three test boreholes through the whole core stem and conduct test filtration studies in them.

Soils

8.14. In the event of accidental spills and leakages from building or transport equipment, perform sequestration of the pollutants;

8.15. Meet the waste management requirements in order to prevent soil pollution in the adjacent areas;

8.16. During operation, perform regular visual inspections of the lake water area for possible development of erosion and landfall processes.

8.17. Remove the humus layer and assign a site for humus disposal;

8.1 8. In the beginning of construction, start performance of an Erosion Control Engineering Project.

Harmful Physical Factors - Noise


8.19. The heavy-duty vehicles serving the dam construction shall keep within the permissible speed limit while crossing the settlements, the speed and routes being agreed with the municipalities.

8.20. The building equipment and works shall be concentrated, as far as possible, within the main construction sites.

Wastes

8.21. The requirements of the Waste Management Act shall be met during the construction and operation phases.

Flora

8.22. Blasting works near ligneous vegetation shall be performed by a "contained blast" technology.

8.23. For biological recultivation of areas affected by the construction as envisaged in the design, use species appropriate for the climate conditions of the region and possessing the respective "landscaping" properties.

Fauna

8.24. Blasting operations at the quarry shall not coinside with the breeding period (end of April and May) as far as possible;

8.25. Ensure release of ecological discharge from an appropriate level of the lake (not exceeding 10 m).

Landscape

8.26. Design and implement a landscaping plan of the territory;

8.27. In the end of construction, perform recultivation of the affected lands outside the facilities

8.28. The PWPP building and the administrative building at the dam wall crest shall be in appropriate color and architectuiral style.

8.29. In the end of construction, perform repair of the affected sector of the national road network.

Health Factor

8.30. Proper hygiene and living conditions, work clothes, personal protection means, and regimen of work and rest shall be ensured for the construction workers and vehicle drivers. The PWPP operating staff shall be supplied with the required means of protection, inclusive for events of accidents.

IX. ENVIRONMENTAL MONITORING PLAN

Before the start of the construction and operation phases, the Contractor, the Operating Unit and the Owner shall develop an Own Monitoring Plan reflecting the requirements set by regulations as indicated in art. VII.

The Monitoring Plan is presented in Annex 3.

The Monitoring Plan shall be developed, performed, reported and supervised in conformity with art. V11 (Legislative Framework). The Project Management Unit established at MRDPW will receive all documents related to environmental management. The required reports will be submitted to the World Bank every six months.


Institutionul re.spon.sihi1itie.r for implementution oJ environmentul impuct mitigution meu.sures and environmentul monitoring of Ludu Yunu Dum During con,struction

In.stitutionu1 responsibilities for impfemenbtion ofenvironmentul impuct mitigation meusures und environmentul monitoring of Ludu Yunu Dum

Impact mitigation and monitoring responsibilities

MRDPW (Employer) RIEW - Pazardjik RIPCPH MOEW (IAE - if required, by an accredited laboratory)

Reporting relations and frequency

Contractor to the Construction Supervisor and RIEW, RIPCPH (acc.to the Monitoring Plan); Construction Supervisor to MRDPW; PMU at MRDPW to the Bank (every 6 months)

Decision making on monitoring performance measures

During operution

X. PUBLIC CONSULTATION PROCEDURES

Activities

Performance of mitigation measures and monitoring.

W&S-P SPLLC- Panagiurishte RIEW -Pazardjik

East Aegean Region BD - Plovdiv

On 18.10.2007 a public discussion was held in Panagiurishte on the Municipal Infrastructure Development Project, inclusive of the Environmental Due Diligence Report in conformity with the requirements to this procedure (notification of the public by announcement at the Town Hall and in the local mass media). The company present drew the attention to: possible climate changes, operation safety of the Water Power Works, risk of drawdown of water level in the wells used for water supply of the Opticoelectron Company. All questions asked by the audience were answered by the Team.

Responsible institutions and persons Contractor Construction Supervisor Employer (MRDP W) RIEW RIPCPH; East Aegean Region BD - Plovdiv

Impact mitigation and monitoring responsibilities

The public supported the construction of Luda Yana Dam because the need for normal water supply in the municipalities of Panagiurishte, Pazardjik and Strelcha is extremely urgent. During the summer low water period a water rationing regime is imposed in the Municipality, while during the spring and autumn high- water seasons the water quality is poor. The water transferred from the terrace of the r. Maritsa comes from a system with 20-year long service life, suffering of frequent accidents, and its cost is increased by the 5-stage transfer. The town has the capability for development of the vacation and tourist business, and that is imjpossible without provision of the necessary quantity of potable water.

Reporting relations and frequency

Decision making on monitoring performance measures

W&S-P SPLLC- Panagiurishte to RlEW Pazardjik and East Aegean Region BD - Plovdiv

The the following consultations with administrative bodies and competent authorities were carried out:

Activities

1. RIEW - Pazardjik. At the meeting with Mrs. Shishiniova it was clarified that RIEW - Panagiurishte has not taken up an attitude concerning Luda Yana Dam.

Responsible institutions and persons

Performance of mitigation measures and monitoring.

W&S-P SPLLC- Panagiurishte RIEW Pazardjik RIPCPH East Aegean Region BD - Plovdiv

Luda Yana Dam Environrnentul Due Diligence Report

2. Municipality of Panagiurishte - a meeting was held with the Mayor of Panagiurishte Municipality Mr. Georgi Gerginekov who expressed, on behalf of the Municipality, the residents' support for construction of the dam and its great importance for water supply to the Municipality and its economic development (Appendix: Position Paper).

3 . W&S P SPLLC - Panagiurishte: At a meeting with the Manager Dipl.Eng. T. Lulchev it was clarified that an EIA on Luda Yana Dam was developed in 2000. The report was subject of public discussion in Panagiurishte where no objections were raised by the population. Upon its delivery to MoEW it was sent back to be incorporated in the report on the PWPP which was not designed. There is no final decision by a competent authority. (Appendix: Position Paper of W&S P SPLLC - Panagiurishte.

In order to inform the population in Panagiurishte Municipality in detail with the Environmental Due Diligence Report, it was placed at the Municipality's disposal. Access to it was provided by means of announcements on notice boards and through the local mass media. W&S P SPLLC - Panagiurishte, as future operator of the dam, will place the EDDR on its web site.

In the process of construction and operation, record will be kept of all remarks and decisions made. Remarks, objections and recommendations can also be sent directly to the competent authorities in conformity with the EPA.


AI M

BAS

BD

W&S

EU

EEB

EPA

IAE

IWP

MRDPW

MoEW

El A

NGO

PCL

PWPP

RIEW

RIPCPH

WPW

CMS

UACEG

EDI

LIST OF ABBREVIATIONS USED

Archaeological Institute with Museum

Bulgarian Academy of Sciences

Basin Directorate

Water Supply and Sewerage

European Union

Environmental Expert Board

Environmental Protection Act

Implementation Agency for Environment

Institute of Water Problems

Ministry of Regional Development and Public Works

Ministry of Environment and Water

Environmental Impact Assessment

Non-government organizations

Permissible concentration limits

Potable Water Purification Plant

Regional lnspectorate of Environment and Water

Regional Inspectorate for Protection and Control of Public Health

Water Power Works

Central measuring station

University of Architecture, Civil Engineering and Geodesy

Exploration and Design Institute


APPENDICES

Plan of Panagiurishte Water Supply Works

Situation of Luda Yana Dam 1 :l 000

Forest Map with plotted Luda Yana Dam l : l0 000

Cross Section of the wall of Luda Yana Dam

Photos

List of Designs for Luda Yana Dam

Annex 1 - ElA Terms of Reference

Annex 2 - Environmental Impact Mitigation Plan

Annex 3 - Monitoring Plan

List of Methodologies and Sources used in the Environmental Due Diligence Report

Minutes of Meetings, Position Papers from meetings at the Municipalities of Panagiurishte, W&S SPLLC - Panagiurishte

List of Regulation Acts

Luda Yana Dam Environmentul Due Diligence Report p.

PHOTOS

View of the upstream dam batter

View of the downstream dam batter


View of the river valley

View of the stone borrow pit

View of the intake tower with bottom outlet

33 of 47


Entrance to the grouting gallery

River of Muleiska (right tributary of Panagiurska the low-water season Luda Yana) in the low-water season

River of Panagiurska Luda Yana downstream of the dam in the low-water season


LIST OF DESIGNS FOR LUDA YANA DAM

1. Preliminary Studies by Exploration and Design Institute (ED1)Vodproekt - Sofia, 1982 -Volumes 1 to 3

2. Design od Luda Yana Dam by EDI Vodproekt - Sofia, 1983

3. Pre-feasibility Studies on PWPP - Panagiurishte by Vodocanalproekt (Vodocanalengineering SPLLC) - Sofia, 1989

4. Final EIA Rerport on Luda Yana Dam - 2000, without conducted Procedure

5 . Results of Analysis of Water Samples taken by independent experts at the request of Water Supply Works LLC - Panagiurishte


ANNEX 1 TERMS OF REFERENCE

FOR THE PREPARATION OF SCOPE AND CONTENTS AND ENVIRONMENTAL IMPACT ASSESSMENT REPORT (EIAR) OF AN INVESTMENT PROPOSAL FOR LUDA YANA DAM

The Contractor undertakes to draw up an Investment Proposal on Completion of Luda Yana Dam:

- EIAR Scope and Contents

- EIAR

The EIAR Scope and Contents drawn up by the Contractor shall meet the following requirements:

1. The ElAR Scope and Contents shall be drawn up tak~ng into consideration the requirements of Art.96, para.1 of the Environmental Protection Act (EPA). The Terms of Reference for EIAR Scope and Contents are developed m compliance with the Regulation on Terms and Procedure of Environmental Impact Assessments (Council of Ministers' Decree 59107.03.2003 and Council of Ministers' Decree 302110.01.2006) with respect to:

- Consultations under Art.95, para.3 of the EPA with specialized departments designated by the Employer and stakeholder representatives.

- The Terms of Reference shall meet the requirements of Art. 10, para.2 and para.3 of the Regulation. In conformity with that, the Terms of Reference shall reflect the activity envisaged in the Investment Proposal in adequate detail - Project Summary, adopted technology requirements, possible alternatives, natural resources to be used, condition of the environment and forecast of the possible impacts of the proposal on components and factors of the environment.

2. The Contractor accepts to develop the Environmental Impact Assessment Report in compliance with the following provisions of the Environmental Protection Act and the Regulation on Terms and Procedure of Environmental Impact Assessments:

- EIAR shall be prepared in conformity with the Terms of Reference under Art.10, para.3 of the Regulation and Art.91, para.3 and Art.96, para. 1 of the EPA. Particular attention shall be devoted to the required measures for prevention, mitigation, compensation and, wherever possible, termination of the negative environmental impacts, and the plan of their implementation.

- The Expert Team and the Team Leader shall meet the conditions of Art. 11, para.2, 3, 4, 5 and 6 of the Regulation.

- A non-technical summary under Art.96, para.1 of the EPA shall be organized in conformity with Art. 12, para.2 of the Regulation.

3. The Team Leader is responsible for the compliance with all requirements set by the regulations and the competent authority - RIEW - Pazardjik at the different stages of the EIA procedure.


ANNEX 2. ENVIRONMENTAL IMPACT MITIGATION PLAN

Place and time Implementation Person in Control functions Impact on: Impact Mitigation Measure of performance Funds Charge performed by: 1 2 3 4 5 6

During the Construction Phase Limit the affected land areas within the construction Dam and PWPP No additional Construction supervisor, site boundaries. construction sites; hnds are required. The Panagiurishte

permanently Contractor Municipality environmental expert, RIEW

Use mobile water sprinkling systems for dust Dam, SQ, service Included in the Construction supervisor, suppression on the temporary service roads and routes roads; in dry hot completion costs The Panagiurishte crossing settlements, the construction sites and at the weather Contractor Municipality

Atmospheric Air aggregate material quarry; environmental expert, RIEW

The operation of building machines and service Dam, SQ, service Included in thc transport vehicles shall be supported by regular roads; costs of machine The Construction supervisor adjustment of the diesel and gasoline units; permanently. fleet maintenance Contractor observation of the daily construction schedules with a view to the best utilization of the working hours; minimization of the ,,idle running" of machines. Checks, on per shift basis, the condition of building Dam, SQ, service Included in the Construction supervisor, machines and transport vehicles for spills and roads, national costs of machine The RIEW, Panagiurishte leakages every shift; in the event of accidents, road network; fleet maintenance Contractor Municipality sequestration of the pollutants permanently environmental expert

Construction of a water meter station in the dam lake Lake tail in the Included in the tail for metering of water inflow. river sector; cost of dam The Construction supervisor,

Dam construction completion, with a Contractor RIEW, East Aegean phase view to inflow Region BD - Plovdiv

monitoring and prevention of floods

Luda Yana Dam l Environmental Due Diligence Report

Water

Water (cont'd)

Construction, in an appropriate place downstream of the environmental discharge outlet, of a water gauge station for monitoring of the ecological discharge quantity.

From the Design for sanitary protection zones I, I1 and I11 around the water reservoir - benchinarking of zone I.

Sanitization of the reservoir bed

Secure delivery of ecological discharge at 0,170 m3/s from the intake tower level;

Erect permanent chemical toilets during the construction and operation phases

Maintain the delivery of water for water supply purposes from the lake basin and interrupt it at an appropriate stage of commissioning Build a mechanical clarifier below the ski-jump for precipitation of construction effluent before discharging it in the river.

Downstream of the dam; Dam construction phase

As per requirements for zone I ; Before the end of construction The whole lake basin; Before commissioning

Intake tower level; During intake tower erection works

At SQ, dam, PWPP construction sites; Before the start of construction Lake basin, permanently

downstream of the ski-jump in the course of building the

39of47

To be included in the cost upon the design update

To be included in the cost upon the design update

Included in the project cost. Include the additional work- offshoot clearing and humus stripping in the design update Included in the project cost.

Funds acc. to the contract with the firm performing the maintenance

No extra funds required

Minimal hnds

The Contractor

The Contractor

The Contractor

The Contractor

The Contractor

The Contractor

The Contractor

RIEW, East Aegean Region BD - Plovdiv, RIPCPH

RIEW, East Aegean Region BD - Plovdiv

RIPCPH, East Aegean Region BD - Plovdiv, RIEW

RIEW, East Aegean Region BD - Plovdiv, environmental expert of Panagiurishte Municipality RIEW, environmental expert of Panagiurishte Municipality

Construction Supervisor, RIEW, RIPCPH

Construction Supervisor, RIEW

Luda Yana Dam Envivonmental Due Diligence Report

Waste

Flora

Fauna

Landscape

The requirements of the Waste Management Act shall be met during the construction and operation phases

Blasting works at the quarry near ligneous vegetation shall be performed by a "contained blast" technology.

For biological recultivation of all areas affected by the construction as envisaged in the design, use species appropriate for the climate conditions of the region and possessing the respective "landscaping" properties

The blasting works, as far as possible, shall not coincide with the breeding period (end of April - May);

Ensure release of the ecological discharge from an appropriate level of the Intake Tower (not exceeding 10 in)

Design and implement a landscaping plan of the territory;

In the end of construction, perform recultivation of the affected lands outside the facility;

The Contractor

The Contractor

The Contractor

The Contractor

The Contractor

The Contractor

The Contractor

Construction Supervisor RIEW

Construction Supervisor



Construction Supervisor

Construction Supervisor, RIEW, environlnental expert of Panagiurishte Municipality

Construction Supervisor, RIEW, environmental expert of Panagiurishte Municipality

Collection, temporary storage, transportation and disposal; permanent On the SQ site; during blasting

On constructikon sites and areas subject to recultivation, in the end of construction At SQ; End of April-May

Intake tower; during Intake Tower erection works In all areas affected by the construction; At the end of construction In all areas affected by the construction; In the end of construction

Funds depending on waste volume, landfills location and contracts with them

Included in the project cost

Provide for extra funds in the design update

Reflect in the construction calendar plan for the period end of April-Ma y Included in the project costs

Provide for extra funds in the design update

Included in the project costs

Luda Yana Dam Envivonrnent~~l Due Diligence Report

Construction Supervisor The PWPP building and the administrative building on the dam crest shall be in an appropriate architectural style and color design. In the end of construction, repair the damaged sectors of the national road network national road

l infrastructure

Dam, PWPP; During the construction National road network; In the end of

I construction Health Factor I Proper hygiene and living conditions, work clothes, I On dam and / Included in the l The I Construction Supervisor,

Provide for additional hnds in the design update Funds shall be provided for in the design update

/ During the operation phase I

The Contractor

The Contractor

personal means, and regimen of work and rest shall be ensured for the construction workers and vehicle drivers.

The Owner, RIEW

1

PWPP construction sites, SQ; permanently

The Owner, RIEW, East Aegean Region BD - Plovdiv !

By the Operating Team By the Operating Team

project costs

Funds acc. to the contract with the maintaining firm Included in the project costs of observation and measurement

I 1 1 operation; I and contracts with I I 1

For dam and PWPP operation staff; pennanently The lake area; by the observation and measurement program

Water

Soils

Waste

Contractor

Erect pennanent chemical toilets for the operation phase During operation, perform regular visual inspections of the lake water area for possible development of erosion and landfall processes

I I required means of protection, inclusive for events of l pennanently I operation costs 1 Operating I 1

RIPCPH

The requirements of the Waste Management Act shall be inet

Health Factor

Adininistrative building of dain and PWPP

The PWPP operating staff shall be supplied with the

Dam Safety

permanently

program Funds depending on waste volume, landfills location

pennanently PWPP;

accidents Compliance with Regulation 1312004, Operation Instructions and the Accident Action Plan

Team

By the Operating Teain

thein Included in the

On the dam and PWPP site;

Plovdiv, Civil Defense Dept. at Ministry of Disasters and Accidents

The Owner, RIEW

By the

Included in the operation costs

The Owner, RIPQPH

Team By the Operating

Owner, RIEW, East Aegean Region BD-

Luda Yana Dam Envimnmental Due Diligence Report

How shall the parameter be

monitored?/ type of monitoring equipment

4

When shall the parameter be monitored? (at what intervals or continuously)

Organization in charge of Monitoring

Where shall the parameter be monitored?

What parameter shall be monitored?

Required Funds /Cost/

Impact on:

disposal Municipalicy

Pennanently in the course of work

No funds required

Flora

The Contractor, Construction Supervisor, RIEW

Final sanitization of the lake bed Observation Lake bed

The Contractor, Construction Supervisor, RIEW, BD East Aegean Region BD, Plovdiv

The planned terains affected by construction work

Pennanently in the course of work

Observation No funds required

Recultivation

No funds required

The Contractor, Construction Supervisor, RIEW

Inspection In the period end of April-May

Fauna Blast work

Provision of personal protections to builders and machine operators

The Contractor, Construction Supervisor, RIPCPH

No funds required

Health Factor Pennanently

I During operation

Atmospheric air; Climate

Pennanently after a developed prograin

Meteorological factors

Meteorological station near the dam above water level elevation

Water

With the installed instrumentation

Influx to the dam Included in the I Operating team Reading gauge Pennanently 3 tiines 1 - In colnpliance with

Luda Yana Dam Envivonmentnl Due Diligence Repnvt

Where shall the parameter be parameter be What parameter Required Funds Organization in charge Impact on: parameter be monitored?/ type of monitored? (at what shall be monitored? monitored?

/Cost/ of Monitoring monitoring intervals or equipment continuously)

1 2 3 4 5 6 7

Program

Release of minimum In compliance with Minima; cost to flow (ecological Measuring template measurement At regular intervals be included in Operating team discharge) from the requirements the design update Intake Tower

Operating teain, Water quality in

Acc.to parameters At various sections At prices of the RIPCPH, W&S the dain lake and indicated in the

In compliance with In compliance with accredited and levels in the the Control Program the Control Program laboratory

Panagiurishte, MOEW eutrofication Monitoring Program dam lake (IAE) if involved in the control National Monitoring

Implementation of an At the Central In compliance with In compliance with Dain safety and Observation and Measurement Observation and Included in the Operating team C&I instructions and aquatory inspection Measurement Station and along Measurement project costs visual inspections

Program the waterfront Program

Quality of water received and fed to In compliance with In compliance with Operating team, PWPP inlet and Included in the RIPCPH, W&S the water supply Observed Parameters the Measurement Permanently outlet project costs system from Program Program Panagiurishte PWPP

Quality of As indicated in the At regular intervals Operating team, RIEW, sediments from the In compliance with Included in the RIPCPH, W&S -

Reference Parameter At the mud basins till the possibility of project costs mud basins of the Control Program PWPP Program their use is clarified Panagiurishte


METHODOLOGIES AND SOURCES USED IN THE ENVIRONMENTAL DUE DILIGENCE REPORT

National Strategy of National Resource Utilization and Water Protection in R. Bulgaria, 1995. - MoEW, Team Leader R. Nikolaeva General Schedules of Water Use in the Basin Management Regions of R. Bulgaria (BAS-IW 2000) Volume 1. General Information, Methodological Foundations and Basic Formulations, General Assessments and Main Results Part VIII. Estimate of Water Quantities for Preservation of the River Ecosystems, Team Leader R. Nikolaeva 7.4. Methodology of Assessment of the Water Required for Preservation of the River Ecosystems Volume IV. East Aegean Region 3. General Schedules of Water Use in the Valley of the r. Arda Methodology for Balance Calculation of Pollutants Released in the Atmosphere, 2000 - MoEW EU Rates Euro-3 for Noxious Emissions from Road Traffic Study of the Geodynamic Processes in the Region of G.Dimitrov Dam and Assessment of the Anthropogenic Impact on Them, 1984-1 990. Concept and Program of Study of the Large Dams in Bulgaria, National Conference on Condition of the Environment in Bulgaria and Forecast of its Change, Sofia, 1990, NCID No. 18, p.7 - G.Gergov, A.Tzenkova, M.Tzenev Investigation of the components of the mass-energy exchange within the surface air layer around the "Koprinka lake", A.S.Tzenkova-Bratoeva, J.N.lvancheva, and B.Veleva; W.L.Smith and Yu.M.Timofeev (Eds.), IRS 2000: Current Problems in Atmospheric Rudiution. A.Deepak Publishing, Hampton, Virginia, 2001, 1360-1 366 pp. Anna Tzenkova, Meteorogical investigation around the mountain reservoir. 24'h International Conference on Alpine Meteorology (ICAM 1996), Bled, Slovenia, 9-13 September 1996 Pehlivanov L., Vassilev, M. 2003. Feeding of Age-l Perch (Percu jluviutilis) with a View to the Diurnal Dynamics of its Distribution in the Alexander Stamboliiski Resevoir, Bulgaria. - Acta Zoologica Bulgarica, 55 (2): 8 1-90 Vassilev, M,, L. Pehlivanov. 2005. Checklist of the Bulgarian Freshwater Fishes. - Acta zool. Bulgarica, 57 (2): 161-190 Beshkov V. 196 1 Contribution to the zoo-geographical study of the herpetofauna in Bulgaria - Newsletter of the Institute of Zoology and Museum X 373-380 Beshkov V. 1972 Item I11 Studies on the ecology and occurrence XXXVl 125-136 Beshkov V. 1985 Amphibia. Reptiles - in: Red Book of R. Bulgaria Vo1.2 Animals 32-41 Casc J-P et all 1997 Atlas of Amphibians and Reptiles in Europe Paris Soc Europe Herpetol and Mus.Nat.Hist Natur 95'h authors of the various chapters, paragraphs, species reviews and distribution maps in the Atlas for Bulgaria - Beshkov V. Beshkov B., K. Nanev 2002 Amphibians and Reptiles in Bulgaria Pensoft pp 1-120 Petrov B., P. Stoev, V.Beshkov 2001 Review of species composition and occurrence of Amphibians (Amphibia) and Reptiles (Reptilia) in the East Rhodopi Beltcheva, M,, R. Metcheva. 1996. Methods for estimation the food eaten, the place and functional role of small mammals in ecosystems. "National Parks and their role in biodiversity protection on Balcan Peninsula.", Ohrid, 143-1 46 Metcheva, R., A. Artinian, E. Nikolova, M. Belcheva, R. Laleva. 1997. Estimation of environmental quality using monitor species small mammals from two regions with different antropogenic influence in Bulgaria. A. Bioaccumulation of toxic elements and their influence on some hystological and hematological indices. Ecomonitoring in Rozhen Srednogorie - Bulgaria. Theory and Practice-Ministry of Environment, SDC - Swiss Agency for Development and Cooperation. Sofia,l l 3 - 119 Mecheva, R., M. Topashka-Ancheva, M. Belcheva, Tsv. Yordanova. 2004. Bio-indicator capabilities of small mammalians in zoological monitoring. Forest Engineer,l, v. 10 (29):135 - 143 Atamassov N., R. Metcheva, S. Gerassimov 1999 - Species composition and demographic structure dynamic of main species in alfalfa fields (North Bulgaria). Contribution to the zoogeography of the Eastern Mediterranean Region. V. 1,37-44 Information for assessment of the need for EIA of small hydro-power plants: Polatovo, Milevo, Yabalkovo on the river Maritsa. Ornitofauna 2007. Team Leader: R. Nikolaeva

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REGULATION ACTS

Environmental Protection Act (State Gazette No.91125.09.2002, amendments & supplements as of 2007). Waters Act (State Gazette No.67101.09.1999, amendments & supplements as of 2006) Biological Diversity Act (State Gazette No. 77109.08.2002, amendments & supplements as of 2007). Pisciculture and Aquaculture Act (State Gazette No. 41124.04.2001 amendments & supplements as of 2006). Waste Management Act (State Gazette No. 8612003 amendments & supplements as of 2007). Regulation on the terms and procedure for Performance of Environmental lmpact Assessments (Council of Ministers Decree 59107.03.2003, amendment & supplement of 01.2006). Forestry Act (State Gazette No. 12511997, amendments & supplements as of 2006). Act on Protection against Noise in the Environment (SG No.7412005, amend. and suppl. No.3012006) Air Purity Act (SG No.4511996 amend. and suppl. No. 10512006) Red Book of the Republic of Bulgaria, vo1.2 - 1985 UN Convention on Preservation of the Biological Diversity (in effect in Bulgaria since 16.07.1996 - State Gazette No. 1911 999). Order No. PA-272103.05.2001 on the Categorization of Surface Waters in Water Bodies or Parts of Them - MoEW. Regulation No. 3101.04.2004 on Waste Classification (State Gazette No. 44125.05.2004). Regulation No. 04/2126.02.2004 on the Minimum Labor Health and Safety Requirements for Construction and Erection Works (State Gazette No. 37104.05.2004). Council of Ministers' Decision 122102.03.2007 on Approval of a List of Protected Areas for Protection of the Wild Birds and the List of Protected Areas for Protection of the Natural Wildlife Habitats. Water Supply and Sewerage Service Regulation Act, 2005. Regulation No. 1312004 on the Operation of Dams and Related Facilities MoEW, MH, MRDPW. Regulation No. 9116.03.2001 of MH, MRDPW and MoEW on the Quality of Potable and Washing Water. Regulation No. 3116.10.2000 of MoEW, MH, and MRDPW on the Terms and Procedure for Exploration, Planning, Approval and Operation of Sanitary Protection Zones around Water Sources and Potable Water Supply Facilities, and around Mineral Water Springs Used for Treatment, Prophylaxis, Drinking and Sanitary Purposes. MoEW Regulation No. 5108.1 1.2000 on the Procedure and Method of Establishing the Networks and Activity of the National Water Monitoring System. MoEW Regulation No. 10103.07.2001 on Granting of Permits for Waste Water Discharge in Water Bodies and Establishing of the Individual Emission Restrictions of Point Sources of Pollution. Regulation No. 6 on Environmental Noise Indicators - MH, MoEW (State Gazette No. 5812006). Regulation No. 7124.08.2005 on the Sanitation Requirements for the Health Protection of Community Environment MH, MoEW Regulation No. 1411 995 amendments & supplements as of 2007 on Permissible Limit Concentrations in the Air of Settlements Regulation No. 26101.10.1996 (amendments & supplements as of 2007) on the Recultivation of Disturbed Lands, Amelioration of Low-Productive Lands and Utilization of the Humus Layer. Hazardous Substance Handbook - MoEW, 2003. Earth- and Rockfill Dam Dimensioning Rates 1986 Civil Engineering and Architecture Newsletter issues I and 6 Hydro-Engineering Facility Design Rates, Basic Principles, Ministry of Construction and Urban Development and Ministry of Energy, Civil Engineering and Architecture Newsletter - issue No. 1111985 Regulation on the Terms and Procedure of Assessing the Compatibility of Plans, Programs, Projects and Investment Proposal with the Subject and Purposes of Zone Protection (SG No.7312007)