China - Yangzhou Thermal Power Project : environmental assessment report (Vol. 3 of 4)

ENVIRONMENTAL IMPACT ASSESSMENT OF THE YANGCHENG TO HlJAIYIN 500 kV POWER TRANSMISSION l'ROJECT V.i.. 3 Jiangsu Provincial Electric Power Company No. 20 West Beijing Road Nanjing, Jiangsu Province People's Republic of China October 1997  Table of Contents Pages 0. Executive summary 0-0 1. Introduction and background 1-1 I. 1 The necessity of 500kV power transmission project construction 1-2 41.2 The basic of environmental impact assessment for 1-2 500kV power transmission project 2. Project description 2-1 2.1 The route and composition of power transmission lines 2-1 2.2 Svitchyard. substation 2-2 2.3 power transmission line 2-2 2.4 Yellow river crossing 2-4 3. Environmental background status 3 3.1I Natural environment 3-1 3.2 Ecological environment 3-3 3.3 Noise level 3-4 3.4 Electric field level 3-5 3.5 Social economic environment and living quality environment 3-5 4. Construction periiod environmental impact 4-1 4.1 Environmental impact identification 4-1 4.2 The impact on natural environment 4-1 4.3 Impact on ecological environment 4-4 4.4 Impact on social environment 4-6 4.5 Impact on living quality environment 4-8 5. Operation period environmental impact 5-1 5.1 Environmental impact identification 5-1 5.2 Impact on natural environment 5-1 5.3 Impact on ecological environment 5-3 5.4 Impact on social environment 5-5 5.5 Impact on living environment 5-8 6. Analvsis of alternatives 6-1 6.1 No action 6-1 6.2 Alternative voltage 6-2 6.3 DC transmission line 6-2 6.4 Comparisons 6-2  7. Mitig tting measurs 7-1 7.1 Residential quarters etc. sensitive areas in the vicinity of 7-1 po'wer transmission line 72 Crossing traffic 7-2 7.3 Crossing waters 7-2 7.4 Switchyard and substation 7-2 7.5 Agricultural land and agricultural production 7-3 7.6 Land occupation and compensation 7-4 7.7 Migrants settlement 7-4 7.8 Cultural Resources 7-5 7.9 Landscape 7-5 7. 1 0 Fcological environment protection 7-6 7.1 1 Constructing access 7-6 7. 12 Labor safety and protection 7-6 S. Environmcnt management an(l monitorinia 8-1 8.1 Switchyard, substation 8-1 8.2 Power transimiissioi line 8-1 8.3 Environmental protectioni and safel) trainino 8-l 9. Public DartiCiDlation 9-I 9.1 Tlhc putblic participation in tilc process of Ilin. routingl 1n1d deTsigninT (-I 9.2 Thef sleurvey rcsult OftIC ,tpiblic participali(Inl )-2 RZf'efrenies Awpendixes A: TIhc ecological enivironment survey of the rcoions aloing Yangclehieg to H-wuiying S00k V power transmiiissioni line 13: ELlviiirolnmilelital inipact assessmenlt on poer\\. tasI.IlSMISSion1 lineC aILId SwN itCh1 Staitioln lnotice C: Field monitoringz andec surveying on power tralnSIiXSiOIi lilnC 11nd SUIbSta iO0 (switch stationi) D: part representations list in puiblic participation 1: List ot conitacts  EIA report for the Project Executive Summary Jiangsu Province Electric Power Company (JPEPC) suggests to build 500kV Yangcheng to Huaiyin power transmission project, to have Shanxi Yangcheng power plant power transmitted to Jiangsu 500kV power grid, in alleviating Jiangsu power shortage situation. Resources for the project investments will be realized. in part, with funds available from the existing Yangzhiou thermal power project. A satisfactory EA had been accepted by the World Bank for the Yang zhou thermal power station during project preparation. However, the transmission project, as described above. was not icluded in the orignal project scope and in accordance with World Bank enviromilental policies and procedures (OD 4.01. Environmental Assessment) a supplemental EA will now be requir-ed for the transmission project. Project Description Shanixi Yangcheng is one of the China major energy bases, abulidant in coal storage and water resources, but deficient in transport capability. Jiangsu is one of the Chinia economiiically developed area but is deficient in energy, witli electric power shortage. To have Yangcheng electric power tralnsimiitted to Jiangsu can bring the superiiority of Shanxi energy base into full play and alleviate the Jiangsu power supply intense situation. Thlie Yangcheng to Fluaiyin 500kV power transimiission project will include the following: * Two (2) new 500kV switchyards at Shandong Donoming and Jianosu Sanbao * Expand 500kV HLuaiyin substationi vith a 750 MVA tranisforimler Expand 500kV Renzhuang set-up station in-linle separation * Build tranisimiissioni lines as follows: a) Three circuits fiom Yangcheng power plant to Dongining switchlyard (length: 256.3km) b) Two circuits fiom Donoming swit chyard to Sanbao switchyard (lengtih: 269.3km) c) Two circuits fi-om Sanbao switchyard to FILuaiyini substation (length: 207.1 km) d) One circuit from Sanbao switchyard to Renziluang set-up station (lengtlh: 37.9km) 0-1  EIA report for the Project The project passes through Shanxi, Henan, Shandong, Anhui and Jiangsu etc. five provinces and their 26 municipalities,(counties) administrative district of respective municipality (county), shown in Fig.l. The suggested power transmission lines starting from Shanxi Yangcheng power plant ending at Jiangsu Huaiyin substation, between them. there install Dongming switchyard, Sanbao switchyard and Renzhuang step-up station (see Fig.l) , is to newly build Yangcheng to Dongming switchyard power transmission line three circuits (including Yellow River cross stride), Dongming switchyard to Sanbao switchyard power transmission line two circuit, Sanbao switchyard to Huaiyin substation power transmission line 2 circuit. Sanbao s\\ itchyard to Renzhuang step-up station transmission line one circuit (seeFig.2). The project power transmission line, bolstered by transmission towers, totally used 2397 towers with 44 structures. The single circuit line are mainly to adopt wine cup and cat head structures, and the double circuit lines are conductors drum-shaped tower (Fig.3). The Yellow River crossing segment is 10.555km in lenght. There will be 40 towers used at there. vary in height from 45.5-113.3m. To pass through 26 counties of 5 provinces, the power transmission line routes are to stride Tailiaig mouLIntains area. Yellow River valley and Xu Huai plains, where. having cultivated for 6000-S000 years. arc mostly farm fields. rivers and forest. Thle distributioll of various topography are: plain 760/%. water area 10/%, mounltailnuis region 14%. Potential Environmental Impact (1) Construction Period A. Some land would be temporarily occupied durinig line construction, and the original ecological environment would be temporarily effected. * During the line to be constructed in the Taihanig mountain'area, some low bushes would be cut do\Nn; * and in thie plain area, some crops would be affected. B. During the lines, switchyards and substations construction period, the constlruCtioni noise level at the boundary will meet tile China National standard within 70 dB(A). Normally, the COIlstrCtion sites are far away fi-om tihe population area, the construction noise has no impact on the residents. (2) Operationi Period A. The design of the Project will be implemilenit in accordinig with the regulations of China and MOEP. P.R.C. 0-2  EIA report for the Project * The lowest sag should be guarantee when transmission lines cross over highways, railways, power transmission lines and navigable rivers, specially the Yellow River crossing. There are no impact on transportation and navigation. * The transmission lines steer clear the communication lines, radio stations, TV stations and . airports during the line routes selection, and have no impact on them. B.Effects on land use * Some land would be occupied by the transmission lines constructed and the agriculture would be affected. * The two switchvards will occupy land of 17 ha: * The tower foundations of the transmission lines will occupy a total land area of 43.28 ha: * and be 0.00226% of farm land of the area along the line routes. The tower foundatiolis are separately located alone the line routes Witil the length of 770.6 kim, and occupy land 56 1.6 ml /lkm. So there is very small impact on the land use and local farmers. C. Houses Removal There are residential houses and commercial property of 35893 m2 .including of 128 families to be removed and 538 people to be affected, need be removed for n1o way to avoid. For those affected people, new houses will be built and a resettlement action plan will be carry out to guarantee tileir living quality not be lower. D. Impact of Electro-Magnetic Field (EMF) on huminan health * The width of the line corridor is 65 rn. DUring the line route selection, the protected distance regulation for the houise removal is implemented. and the line steer clear the populationi area to reduce the impact of EMF. * In accordance with the EMF recommended standard limit value of Chinia and the researchi studies of the Bonneville Power Adtninistr-ation. USA, the impact of the EMF incrlircd by the transmission lines durinig operation period will hiave no impact on the h1umllall health. * Durinig the route design period, the lines steer clear the schiools, hospitals, public places of entertainment. etc.. and hiave no impact oni them. E. Noise It is predicted that under normal electric power operation frequency, the noise level ulider power transmissioni line corridor will be below 5OdB(A), that at 20m distant to corridor centre is also below 5OdB(A). It is predicted that under normal operation condition, the noise level at switchyards anid substations boundary will be lower than 5OdB(A) . Bothi are all lower tilan the World Banki standaid 7OdB(A). F. Impact on ecological environimient * The transmission line will pass througIl the Taihang mountains area. There will be some impact on ecological environment incuired by the land occupied for the tower foundations construction. * There are some impact on the agriculture in plain area alone the routes. Total of 32195 trees 0-3  EIA report for the Project that planted under the transmission line corridor would be cut down if necessary. The mitigation measures Aiming at cutting the unfavorable environmental impact incurred byThe project to the min., we recommend the following: * Reduce as less as possible the tower foundations impact on farm field, if unavoidable, to compensate duly the peasants' loss. According to the design. the trianoularly arranged cat-head Structure tower will be mostly used, this measure will minimize the width of the corridor and reduce the land occupied. * Construction, close to inhabitants, should adopt low noise construction equipment as mucIh as possible to reduce noise environmental impact, and avoid constructing in night. * When power transmission lines cross highway. railway and navigable river, the biding documents will requre the constructor to guarantee that the lowest sag of power line will not effect traffic. * The construction of tower foundation occup)ying shorelinie should chioose in dry season to avoid ConstIuction effecting flood discharge. * Construction in erecting line, clearing line cor r idor should cut down tree as less as possible. * In design. apply 10