Ministry of Environment of Kazakhstan Environment Regulation and Supervision Committee House of Ministries, 8 Orynbor Str., Astana, 010000 phone 8 7172 74 00 94 fax 8 7172 74 98 22




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Ministry of Environment of Kazakhstan

Environment Regulation and Supervision Committee

House of Ministries, 8 Orynbor Str., Astana, 010000

phone 8 7172 74 00 94

fax 8 7172 74 98 22
7 April 2010

No.06-05-01-18/282-1

KEGOC JSC
CC: Balkhash – Alakol

Environment Department



State Environment Expert Opinion on “Preliminary Environment Impact Assessment (Preliminary IEA) for Feasibility Study of Moinak Electricity Transmission Project”

The materials were prepared by TOO NPK EkoTsentr, state license No.01057Р dated 31 July 2007, for the Client – KEGOC JSC.

The following documents were submitted for state expert review:


  1. Preliminary environment impact assessment (preliminary EIA) for FS of Moinak Electricity Transmission Project, Environmental Impact Assessment – 1 book and 1 CD;

  2. Suggestions and comments to the opinion of environment impact assessment of Balkhash – Alakol Environment Department (10 December 2009 No.03-15/5228);

  3. Copy letter No.25-02-10-19/297 dated 24 February 2010 from Forestry and Hunting Committee of the Ministry of Agriculture of Kazakhstan;

  4. Copy letter No.24-07-03/108 from 19 January 2010 from Balkhash-Alakol Catchment Area Inspection for Regulation of Usage and Protection of Water Resources, Water Resources Committee of the Ministry of Agriculture of Kazakhstan;

  5. Copy Sanitary and Epidemiological Opinion of Almaty Oblast State Sanitary and Epidemiological Supervision, Ministry of Health of Kazakhstan No.026 dated 18 February 2009;

  6. Copy opinion of “YuzhKazNedra” Interregional Territorial Department No.03-73 dated 18 January 2010;

  7. Copy letter from TOO “Korporatsiya KoZU” No.05-07/507 dated 3 December 2009;

  8. Copy Minutes of Public Consultations dated 2 October 2009.

The materials were submitted for review on 3 March 2010, Ref. No.282-1.
General

FS of Moinak Electricity Transmission Project covers the construction of 220 kV transmission line (OHTL) Moinak HPP – Robot SS, 220 kV OHTL Moinak HPP – Shelek SS; extension and modernization of 220 kV Outdoor Switchgears (OSG) at 220/110/35/10 kV Shelek SS, 220 kV OSG at 220/11/10 kV Robot SS and construction of 220 kV Outdoor Switchyard (OSY) at Moinak HPP.

Construction of the OHTLs and 220 kV OSY at Moinak HPP shall be performed on the lands of Almaty Oblast including their withdrawal from agricultural use. Modernization and extension of the substations is projected within the limits of the existing substations of 220/110/35/10 kV Shelek SS, 220 kV OSG 220/10-10 kV Robot SS, including partial acquisition of additional lands, adjacent to the substation.

The transmission lines do not cross specially protected nature areas (please refer to letter No.25-02-10-19/297 dated 24 February 2010 from Forestry and Hunting Committee of the Ministry of Agriculture of Kazakhstan)

The climate of the Ili-Balkhash catchment area is determined by the deep continental location of the region. The region in question is exposed to invasions of North, North-West, and West polar, tropical and arctic air masses. According to many-year collected data from the weather stations the average annual air temperature is 2-5ºC in the northern regions, and 5-10ºC in piedmont regions. The higher the region is located in the mountains the lower the temperature is and it gets below zero Celsius (down to -5ºC, -10ºC) at significant heights.

The average temperature of the hottest month (July) in the plains is 20-25ºC, and it gets lower by 0.4-0.8ºC each 100 m of elevation. At 2500-3000 m the average July temperature is 7-10ºC.

The average temperature of the coldest month (January) varies from -16ºC in the North to the -5ºC in the South on the plains.

The wind speeds in general are insignificant and features mountain-valley air circulation. The highest wind speed was reported in the intermountain passages and at the undercurrent of Shelek River (4.1 m/s).

The geological structure of projected transmission line right-of-way is formed by the quaternary sediments.

The hydrographic network of the region includes Rivers Chilik and Kaskelen with multiple feeders and temporary streams. Small streams do not usually reach the Ili River and Kapchagai water reservoir. The only exclusion is Kaskelen and Chilik.

The ground waters and underground reservoirs are very common in the aria and could be found 5 to 30 m below the surface. Their time is defined by the sand and gravel sediments

The region seismicity is 8-9 on the Richter scale.


Basic Design
The FS of Moinak Electricity Transmission Project includes:

  • Construction of 220 kV OHTL Moinak HPP – Robot SS, 240 km; 220 kV OHTL Moinak HPP – Shelek SS, 119.11 km;

  • Extension and modernization of 220 kV OSG at 220/110/35/10 kV Shelek SS;

  • Extension and modernization of 220 kV OSG at 220/110/10 kV Robot SS;

  • Construction of 220 kV OSY at Moinak HPP.

The commencement of construction is planned in 2010. The works shall be completed in 2 years.



The route of 220 kV OHTL from Moinak HPP to Robot SS crosses the territory of Raimbeksky, Enbekshikazakhsky, Talgrasky and Ilisky Raions of Almaty Oblast. Its purpose is to deliver power from Moinak HPP.

The projected 220 kV OHTL crosses gazing land for 225 km, and irrigated ploughed land for 15 km.

The route of 220 kV OHTL crosses Sharyn and Shelek Rivers, 220 kV OHTL, 35 kV OHTL and motorway (3 times).

The route length of 220 kV OHTL is 240.0 km.



The route of 220 kV OHTL from Moinak HPP to Shelek SS crosses the territory of Raimbeksky, Enbekshikazakhsky Raions of Almaty Oblast.

The projected 220 kV OHTL crosses the grazing lands, and goes for 20 km along the canal on the grazing land at the approach to 220/110 kV Shelek SS.

The route of 220 kV OHTL crosses Sharyn and Shelek Rivers, 220 kV OHTL, and motorway.

The route length of 220 kV OHTL is 119.11 km.



Shelek substation require modernization of 220 kV OSG. The modernization of 220 kV OSG at the substation is projected within the existing fencing limits.

The following switchgear circuit topologies are accepted in compliance with the standard designs:



  • 220 kV – H-connection including circuit-breakers in transformer circuits and repair bridge on the side of transformers;

  • 110 kV – Double busbars and bypass busbar;

  • 35 kV – Single busbar with sectionalizer;

  • 10 kV – Two single busbars with sectionalizer .

220/10-10 kV Robot SS. Extension of the existing substation is invoked by the new bay at 220 kV OSG (installation of the newly designed equipment) and arrangement of the new technological passage located along the bay in accordance with the design standards and connected to the existing site motorway network.

The new cable ducts will be laid on the existing territory parallel to the central line of the newly projected bays.

As the terrain of the extension is mainly plain, the project does not provide for vertical leveling, but for minor local leveling at the new facility spots.

40-45 people are expected to be engaged in construction and modernization of the power network facilities.



Preliminary Assessment of Environmental Impact from Projected Construction
Air. The main pollution sources of construction and modernization are the special construction equipment, motor transport, which have an adverse impact on the air.

The main pollutants generated during construction are: non-organic dust SiO2 70-20 %, benzapyrene, aldehyde, nitrogen dioxide, sulphur dioxide, soot, carbon dioxide, hydrocarbons.

The estimated amount of the pollutants expected during construction is – 33.03 t/period.

It is expected that diesel motor transport and construction equipment will be used during construction. Total fuel consumption by the transport facilities within the entire construction and modernization period was taken from the similar projects and it makes 1.5-2.0 tones per 1 km of the route.



Water resources. It is planned to arrange water supply of the projected facilities using motor transport to delver household and technical purpose water. The estimated rate of water consumption is: 519 m3 per season, including 45 m3 per season for production purposes, and 474 m3 per season for household purposes.

All discharged waste waters shall be collected by contractor in the watertight, sealed tanks up to 3 m3 and removed by the specialized motor transport to the waste treatment facilities. Discharge of waste waters to the surface water reservoirs during construction and operation of OHTL is not expected.

The estimated amount of the household waste waters is 379.2 m3 per season. The irrevocable water consumption is 139.8 m3 per season.

The route of 220 kV OHTL crosses several water bodies. However, construction and operation of OHTL provide for some measures to mitigate the impact of OHTL on the water bodies.



The materials of 220 kV OHTL routing were earlier approved by the Balkhash-Alakol Catchment Area Inspection for Regulation of Water Resources Usage and Protection, Water Resources Committee of the Ministry of Agriculture of Kazakhstan, ref. No 24-07-03/108 dated 19.01.2010.

Subsoil. The OHTL routes for the most part do not cross mineral deposits registered in the National balance (opinion of “YuzhKazNedra” Interregional Territorial Department No.03-73 dated 18 January 2010).

Production and consumption wastes. The construction works are assumed to generate such wastes as: solid domestic wastes, welding rod stubs, oil-impregnated cleaning cloth, and fuel oil impregnated soil.

Estimated amounts of accumulated production wastes for the period of OHTL construction


No.

Waste description

Units

Amount

Hazard level

Disposal

1.

Solid – domestic wastes

t

21.2

Green -GO060

landfill

2.

Welding rod stubs

t

0.075

Green -GA090

recycling

3.

Oil-impregnated cleaning cloth

t

0.127

Amber -АС030

recycling

Physical impact. In accordance with Kazakhstan SanPiN regulation “Prevention of Population Exposure to Power Frequency Electric Field, Generated by HV AC Transmission Lines” and in accordance with the sanitary and epidemiological rules and norms “Sanitary and Epidemiological Requirements to Design of Industry Facilities” (Order of the acting Minister of Health of the Republic of Kazakhstan No.334 dated 8 July 2005) no sanitary or epidemiological requirements shall be applied to the sanitary buffer zone of 220 kV OHTL.

Safe maintenance of units and equipment at substations shall be secured by the Safety Rules of Electric Installation Operation, RD 34 РК.03.202-04. In accordance with the Rules, the substation equipment shall be safely earthed, properly insulated, fenced and meet appropriate clearances to the live parts.

Land resources and soil. The OHTL routes cross the subzone of grey desert soil and meadow grey desert soil.

The construction of transmission lines: 220 kV OHTL Moinak HPP – Robot SS, 220 kV OHTL Moinak HPP – Shelek SS; extension and modernization of 220 kV OSG at 220/110/35/10 kV Shelek SS, 220 kV OSG at 220/110/10 kV Robot SS and construction of 220 kV Outdoor Switchyard (OSY) at Moinak HPP will require withdrawal of lands from agricultural use of Almaty Oblast:

Permanent use,

grazing – 9.18 ha (22.68 a);

Temporary use,

grazing – 554.88 ha (1 371.14 a).

Permanent use,

ploughed land – 0.32 ha (0.79 a);

Temporary use,

ploughed land – 23.31 ha (57.60 a).


The fertile soil (if any) shall be removed and preserved for the period of tower foundation installation.

The disturbed soil layer shall be restored upon completion.

The estimated amount of the fertile soil is 44730 m3.

Wild life. Execution of works is scheduled within the short term period with relatively small number of equipment and personnel. The works shall be accomplished by the restoration activities. Thus the negative impact is assessed as small with regard to the impact area, short term with regard to its duration, and insignificant with regard to its intensity.

Social and economic environment. Modernization and new construction of the power network faculties shall secure the expected electricity demand on the background of the growth rates of the population and the quality of its life, high rate residential and civil construction, development of social and cultural life.

Additional work places for modernization and construction of power network facilities will improve the population employment.

The Preliminary EIA provides for different emergency situations as well as for the preventive measures.

A more detailed assessment of environmental impact of the power network facilities construction and modernization including qualitative and quantitative environment performance will be made at the detail design stage of construction, and presented at the next EIA stage.


Conclusion
The State Environment Expert Assessment approves the “Preliminary Environment Impact Assessment (Preliminary IEA) for Feasibility Study of Moinak Electricity Transmission Project”.



/signed/
Sh. Suleimenova,

Head of Environmental Impact Expert Assessment

Environment Regulation and Supervision Committee

Ministry of Environment of Kazakhstan

 lower level territorial administrative units

higher level territorial administrative unit





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