China - Fifth Inland Waterways Project : environmental assessment (Vol. 3 of 3) : Environmental management plan

El 064 VOL. 3 Ir .1~~~~~~~~~~~~~~~~~~~~~~I WB Loan Application Project IL Environmental Management Plan OF CUIJIAYING SHIPPING AND HYDROPOWER PIVOTAL PROJECT AT THE HAN RIVER (Final Report) THE 2ND HARBOUR ENGINEERING INVESTIGATION & DESIGN INSTITUTE OF THE MINISTRY OF COMMUNICATIONS JANUARY 2005   TABLE OF CONTENTS 1.0 GENERAL ...........................1 1.1 Project Overview ...........................1 1.2 EIA Basis ...........................3 1.3 EIA Standards 5..........................5 1.4 Environment Protection Objects ...........................7 2.0 MEASURES FOR ENVIRONMENTAL PROTECTION AND INVESTMENT ESTIMATE ..10 2.1 Measures for Environmental Protection during Construction . 10 2.2 Measures for environmental protection in the stage of operation .21 2.3 Environmental Protection Measures for the Environmental Sensitive Zone.. 24 2.4 Environment Protection Investment Estimate .24 3.0 MONITORING AND MANAGEMENT PLAN OF ENVIRONMENTAL PROTECTION .29 3.1 Environment Monitoring Plan .29 3.2 Environmental Administration .41 3.3 The Legal Forces for Environmental Protection Action Plan .47 4.0 ANALYSIS OF ECONOMIC LOSS AND BENEFIT OF ENVIRONMENTAL IMPACTS . . 51 4.1 Analysis in Environmental Economic Benefit .51 4.2 Analysis of Loss of Environmental Impacts .54   1.0 GENERAL 1.1 Project Overview 1.1.1 Project Class and Standard 1. Project Class The Cuijiaying Shipping and Hydropower Pivotal Project is a comprehensive application project mainly featured as shipping one and compromises to generate hydropower with the hydropower generated to promote shipping, its normal impounded level is 63.23m and its corresponding reservoir volume is 285 million m3, and its installed capacity is 96MW. The total capacity of the reservoir is 10'1. 08m3, this project is decided as Class II with Large (2) type scale. The installed capacity of the hydropower station is 50-300MW, the project class is Class III, its scale is middle scale; As for the integrated application water conservancy and hydropower pivot project, the standard specifies that the highest class will govern for the whole pivot project when classification figures belong to several different classes, therefore, this project is classified as Class II. The pivot building is composed of shiplock, hydropower station, sluice gate and earth dam. According to the pivot classification standard, permanent buildings belong to Class II, secondary buildings Class III, and temporary buildings Class IV. 2. Flood standard The main buildings of this project are designed as per one flood every 50A100 years and checked as per one flood every 300-1000. Considering the downstream flood will be lessened and the anti-flood standard of the area downstream of the Danjiangkou Dam will be upgraded after the execution of the Danjiangkou final project. At the same time, from the viewpoint of consequences of building wreckage, no serious losses will be caused. Therefore the main buildings will be designed as per one flood every 50 years with its corresponding flood flow of 19600 m3/s and will be checked as per one flood every 300 years with its flood peak flow of 25380 m3/s. 1.1.2 Engineering scheme and techno-economic figures The pivot is situated at 17km at the downstream of Xiangfan City with control drainage area of 3.06x 104 kM2, normal impounded level of 63.23m (except indicated in this outlines, all the levels are of the Yellow Sea Elevation System), backwater length of about 39.8km up to Xinji, and it is composed of water release gate, dam, shiplock and powerhouse. The general layout of the dam is shown in Fig. 1. 1. Water release gate It is of RC lock-and-dam structure, designed as per Class II hydraulic structure, with I   e ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~~~~_ t I gt t U,6 & _________hK2 130624 MW 96 $$F $@ i0e ~10 487 nm 5.s t Z$$f