China - Fourth Inland Waterways Project : environmental assessment (Vol. 3 of 10) : Lianjiang Xiniu navigation junction - environmental impact assessment report

CHINA 4TH INLAND WATERWAYS E788V.3 Lianjiang Xiniu Navigation Junction Complex Sub-Compone May, 2003 B _ _ Environmental Impact Assessment Report Draft ThirdSeeond MayDee 20032 South China Institute of Environmental Sciences, SEPA  Project Owner: Guangdong Province Waterway Bureau EIA Undertaken by: South China Institute of Environmnental Sciences, SEPA(SCIES) EIA Certificate Number: National EIA Certificate Grand A Number 2801 General Responsibility: Professor Xu Zhencheng, Director of SCIES Expert Consultants: Professor Wang Junsan (Local Ecological Expert) Professor Chen Zhanghe(Local Land-Plant Expert) Professor Han Boping (Local Aqutic Ecological Expert) Professor Chen Xianglin(Local Ichthyologic Expert) Professor Li Kaiming (Local Hydraulics Expert) Professor Zhen Fantang (Local Water Environmental Expert) Technical Responsibility: Professor Han Baoxin, Deputy Director EIA work Responsibility: Liang Mingyi Work Group Leader: Mr. Cai Xinde Mr. Qian Donglin Complied by: Cai Xinde, EIA Certificate GD-03820 Qian Donglin, EIA Certificate - 13102 Liang Mingyi, EIA Certificate GD-03828 Zhang Yuhuan. EIA Certificate GD-03824 Huang Zhengguang, EIA Certificate GD-03837 Li Zhao Yong, EIA Certificate GD-03832 Shen Qian. EIA Certificate GD-03830 Examined by: Han Baoxin Finalized bv: Xu Zhencheng  EM Report ofXiniu-Navigation Junction Complex Project Content 0. BACKGROUND AND CONTEXT . ....................................... 1 1. AN INTRODUCTION TO THE PROJECT ............................ ............ 2 1.1 Brief introduction to the project ....................................................2 1.2 Necessity of this project ....................................................2 1.3 Constructing scale and main components of the project ....................................................3 1.4 Scale and main items of navigation lock construction ....................................................5 1.5 Scale and main items of power station construction ....................................................5 1.6 Regulation for running of reservoir ..................................................... 12- 4 1.7 Construction of river diversion . ............................................... ... 1 31 4 1.7.1 Standards of river diversion ............................. 134 X 1.7.2 Measures of river diversion ............................. 134 4 1.7.3 Characteristics of cofferdam ............................. 144 4 1.7.4 Construction of cofferdam ............................. 154 4 1.8 The construction of the main works ............................. 154 X 1.8.1 the engineering quantity ............................................................................................. 1544 1.8.2 the construction of the earth-rock engineering ........................................ 154 4 1.8.3 the construction of foundation treatment works .............................................. 174 - 1.8.4 the construction of concrete and reinforced concrete . ............................................. 1 8+ S 1.8.5 stone masonry .............................................. 181-p 1.8.6 electromechanical and steel structure installation . ..................................... 184 S 1.9 The general schedule of the construction ........................... . 194 4 1.10 the natural building material and the construction road ......................................... 20 9 1.10.1 the natural building material .............................................. 2024" 1.10.2 the construction site and the construction pavement . ............................................. .. 222 1.11 the scheme of the construction collocation .............................................. 2^3 1.12 reservoir submersion .............................. : 213 1.13 watervay regulation in downstream ................................ . a 1.14 the assessment of project investment and economic benefit . . . 25 1 .15 the comparative scheme .................................................... 27 -2 2. GENERAL DESCRIPTION OF EIA . ........................................ 282 n 2.1 Basement of the Project EIA .................................................... 2 - 2 2.1.1 Environment related Laws and Regulations ............................... ...................... 28' 2.1.2 Technical Guidelines ......................................................8n m 2.1.3 Project Proposal and Feasibility ...................................2.... : ......... 292 m 2.2 Scope of EIA .................................................... 29 - 2.3 Grade of EIA ......................................30.. . 2.4 Environment Standards and Control Standards of Pollutants ............................. 30 2.4.1 Surface WVater ...................................................30. ..  EM Report ofXiniu-Navigation Junction Complex Project 2.4.2 Noise ............. 33-3-2 2.4.3 Air Environment ............. 33-34 2.4.4 River sediments ............. : 34- - 2.4.5 Soils. . . . . . . : . . . . . . 3. THE GENERAL DESCRIPTION OF THE SURROUNDING ENVIRONMENT OF THE PROJECT .................................................... 34MA 2 3.1 the natural environment ................................................................... 34' 3 3.1.1 the general description of the valley ................................................................... 34' 3 3.1.2 climate .................................................................... 353 i34 3.1.3 Hydrology and sediment ................................................................... 36 34 3.1.4 brief introduction of geology ................................................................... 389 e 3.1.5 land resource and vegetation ..............................8...................................... 38-i 2 3.1.6 present situation of the aquatic resource ........... 393 48 3.2 the general description of the social environment .................................................... 404 9 3.3 Environment sensitive spots ....................................................................41. 4L 4. INVESTIGATION AND ASSESSMENT OF ENVIRONMENTAL QUALITY ....................................................... 43 4.1 Analysis and assessment of the present situation of the social economy ................................................................... 4 z 4hj 4.2 water pollution source in this area ................................................................... 454- 44 4.3 The present situation of water environmental quality .................. ............................ 454' 44 Fig. 4-B The BOD changes in different years4.4 The investigation of aquatic resource ....................................................... ............. 4 S 4.5 The investigation and assessment of the present situation of the bottom matter of the river .................................................................... 54 4 9 4.6 the investigation of the remnant poison in fish body .................... ........................... 55 S 4.7 the investigation and assessment of land ecosystem .................... ............................ 55 - 4.7.1 The present situation of land use ................................................................... 5 ; 4.7.2 The present situation of land erosion ................................................................... 565-1- 4.7.3 The situation of vegetation ................................................................... 7- L 4.7.4 The situation of aninal species ..................................................................... 616 4.7.5 the investigation result of the background value of soil pollutants ................................. 636 & 4.8 the assessment of the present situation of noise environmental quality ..................................................................... 4.8.1 the investigation of the present situation .. 4.8.2 The result and assessment of the monitoring of the present situation of the environm ent ................................................................. 4S 4.9 the assessment of the present situation of environmental atmosphere quality ................................................................. 6 3 4.9.1 the monitoring of the present situation of environmental atmosphere quality ................  EM Report ofXiniu-Navigation Junction Complex Project 4.9.2 the analysis of monitoring result ........................................, , ,,,. . 666 P 5. ENVIRONMENT IMPACT ASSESSMENT ... 66M A 5.1 Water environment impact assessment .... 66& S 5.1.1 The construction period .......................... ,,.. 66 - 5.1.2 the operation period ................. . .. . . .. 69h 5.1.3 The analysis on the hydrological change .... 7146- 5.1.4 The analysis on other impacts .... 71 4 5.1.5 the analysis of the transportation accidents on the environment .... 72L E 5.2 The assessment of the land erosion .. . 72 4 5.2.1 The forecast of the land erosion .... 729 M 5.2.2 the prevention measure for land erosion .... 734 6 5.3 The ecological environrnental assessment ... 76A69 5.3.1 The impact on land ecological system .... 767 6S 5.3.2 The impact on the fish .... 777 a 5.3.3 The impact on aquatic .... 77?.1, 5.3.4 the analysis of the impact of submergence ...... 5.4 Evaluation of noise affecting environnment ..... .. 5.4.1 Analysis of noise caused by construction ..... , _4_-' 5.4.2 Analysis of noises from operations .... 81 -7 5.5 Analysis of other effects ..... . 81 i 74 5.5.1 Evaluation of solid waste affecting environment .... 818--74 5.5.2 Analysis of effects on atmosphere.... . 83&q 5.6 Analysis of indirect effects on environment ... 87 5.7 The Analysis of the Accumulated Ecological Impact of the Original II Navigation Complexes .. . . 88& g 5.8 regulation of waterway impact on environment . . . 898 - 5.8.1 Impact on water quality .....89. '2 5.8.2 Impact on fish ...........................909012 5.8.3 Impact on fish migration route .909 G 5.8.4 impact on aquatic system. . 90 90 5.8.5 The noise impact on residential areas ..... 919- 6. PUBLIC CONSULTATION . . . 9194 6.1 The results of the first public consultation . .. . 919484 6.1.1Metliodolouy and Scope of Public Consultation .. 91i 4 6.1.2 Public Opinion....... 934 6.2 The results of the second public consultation . . . 95S 9;- 6.2.1 Methodology and Scope of Public Consultation ..... 95 8-7 6.2.2 Public Opinion ......................................... 979 S 7. ANALYSIS OF ALTERNATIVE ...98m 7.1 Comparison and selectioni of the dam site of the Xiniu navigation junction complex. 98* 3  EIA Report ofXiniu-Navigation Junction Complex Project 7.2 Analysis for comparison and selection for substituted scheme ............ ................ i0 2 7.3 Feasibility Study For Best Blueprint Location ..................................................... 94 8. MEASURES AND SUGGESTIONS FOR ENVIROMENTAL PROTECTION .................................................. 1024 94 8.1 Measures of protection in the construction phase ................................................ 1034.94 8.1.1 Measures to protect the water environment ............................................................... 10344)94 8.1.2 Measures for protecting the ecological environment . ................................. 105 8.1.3 Countermeasures for avoiding disturbance to the order of traffic during the construction phase ............................................................... 1064 8.1.4 Countermeasures for avoiding noise pollution, air pollution and solid waste ............. 1064 98 8.1.5 Measures for reducing the negative impact on society ................................................ 1074 W 8.2 Measures for protecting environment during the operation phase . ...................... 108 8.3 Investment for environmental protection equipment . ........................................ 109 X 8.4 Summary of environrmental protection measures ................................................ I 111111: 0 9.PLANS FOR THE PROTECTION AND ADMINISTRATION OF THE ENVIRONMENT .................................................. 120142018 9.1 Plans for Environment protection ................................................................ 1201-20-40 9.2 The organization, responsibility and implemented system for environment administration ................................................................ 128: 9} 9.2.1 Organization Framework ................................................................ 128 -& 9 9.2.2 Responsibilities and System Structure ................................................................ 1304-430 M4 9.3 Plans for environmental protection monitoring during the construction phase ............................................................... 13213' 4} 9.3.1 Plans for monitoring the disposal of mud and sediments .......................................... 132-3l4H- 9.3.2 Plans for water conditions monitoring ............................................................... 133133 H} 9.3.3 Plans for air and noise pollution monitoring ............................................................. 134434 - 9.3.4 A Brief Summary of Monitoring Plan Expenses ....................................................... 5 13 10.BRIEF ANALYSIS OF THE ENVIRONMENTAL ECONOMY BY INCREASING AND DECREASING PROFIT AND LOSS ............1371-3.7r4 10.1 Estimated investment for the environmnental protection of this project ................................................................ 137137- 44 10.2 ECONOMIC loss caused by the negative environmental impact .................... 137137] 44 10.3 Analysis of the environmental economic benefit .................... ......................... 137-37] 10.3.1 Analysis of the non-direct environmental economic benefit ................................... 137 10.3.2 Analysis of environmental benefit ................................................................ 1 38 -1 11. EVALUATION CONCLUSION .................................................. 1384K 11.1 Evaluation conclusion of present environmental quality .............. ................... 138 11.2 Construction analysis conclusion ................................................................. 139 3 11.2.1 Source of water pollution ............................................................... 139 4  EL4 Report ofXiniu-Navigation Junction Complex Project 11.2.2 Source of air pollution ............................................................................................. 139139 4 11.2.3 Noise pollution ..................... 13913946 11.2.4 Pollution from solid garbage ..................... 1394M 11.3 Conclusion from the environmental impact evaluation forecast ......... ............. 1 394 11.3.1 Impact analysis from water loss and soil erosion .................................................... 139 4 11.3.2 Conclusion for water impact evaluation forecast .................................................... 14044B 4 11.3.3Analysis of ecological impact .............................................................. 140 44 11.3.4 Evaluation for sound impact forecast ............................................................... 141 4 11.3.5 Evaluation for solid garbage impact forecast .......................................................... 141 4 11.3.6 Evaluation for atmosphere impact forecast ............................................................. 142442' 4 11.3.7 Analysis for the risk of water way accident impact to the environment ............ 1424 9 11.3.8 Analysis for comparison and selection for substitute blueprint for the water conservancy project ................................................................ 1424 11.3.9 Analysis for the feasible of the location of the dam ................................................ 1434-43- -2 11.4 Measures for environment protection .............................................................. 143 1413] 0 11.4.1 Measures for avoid water being impacted during the construction phase ............... 14344 2 11.4.2 Measures for avoid water from being polluted by marine sewage during the construction phase..............................................................................................................431 11.4.3 Measures for preventing water from being polluted by sewage made by construction base during the construction phase ......................................................... 1434m 11.4.4 Measures for ecology protection during the construction phase ............................. 1434 2 11.4.5 Measures for water loss and earth erosion prevention during the construction phase 1444 14- I 11.4.6 Countermeasures for preventing noise, atmosphere, and solid garbage pollution . 144444 2 11.4.7 Measures for environment protection during operation term .................................. 144 11.5 Final conclusion for environment impact evaluation ................ ....................... 145 X 5  EIA Report ofXiniu-Navigation Junction Complex Project China 4th Inland Waterways (IWW IV) Lianjiang Xiniu Navigation Junction Complex Sub-Component Report of EIA 0. Background and Context The Lianjiang River is the largest tributary of the North River, which is the secondly largest river system of the Pearl River watershed. The upper reaches of Lianjiang River is called as Xingzi River, and the r iver beginning from the converging of Dongbi River, Baoan River and Sanjiang River in Lianzhou Town is called as Lianjiang River then. This river flows from the west-north to the east-south, connecting with Qinlian River, Boluo River and Zhutian River northwards, meanwhile joined with the secondary class of branches such as Tongguan River, Huakeng River, Qigong River, Shuibian River and so on, and then converge in Lianjiangkou and flow into North River River (Fig. 2-1). In order to promote the resource exploitation of North River watershed as well as development of society and economy, change poverty and economical backwardness of the mountainous areas, improve present transportation status of navigational channel, Guangdong Provincial Waterway Bureau (GDWB) planed to construct the Xiniu Navigation Junction Complex in Lianjiang River, and the project feasibility report is finished by Waterway Design Institute of Guangdong. Meanwhile, in order to solve the deficiency problem of domestic funds, loan application to the World Bank was lodged in January 2002, and regarded the Xiniu Navigation Junction Complex in Lianjiang River, Waterway Regulation Project of North River (Shaoguan - QinYuan section) and Waterway Regulation Project of Laolonghu waterway as a package project, united investment budget was carried out to this package project. According to the relevant stipulations concerning environment protection to the project that raises loan from the World Bank and state, an evaluation to environment influence about this construction project must be available. In January 2002, Guangdong Provincial Waterway Bureau entrusted South-China Institute of Environment Science (SCIES, SEPA) to undertake the task of the EIA study for the Xiniu Navigation Junction Complex in Lianjiang River in Guangdong province. According to the information provided by the construction corporations, South-China Institute of Environment Science had carried out a great deal of investigation, research, forecast, analysis and calculation on site. Based on these data, we edited the "Report about Environment Impact Assessment of Xiniu Navigation Junction Complex in Lianjiang".  EL4 Report ofXiniu-Navigation Junction Complex Project 1. An Introduction to the project 1.1 Brief introduction to the project (1) Name of project: Xiniu Navigation Junction Complex in Lianjiang River of Guangdong Province (2) Location of project: This project is situated in 3.5 kilometers of the upper reaches of Xiniu Town, Yingde City, Guangdong Province; it connects with Jiaqiaoshi Navigation Junction Complex of Hanguang Town of Yingde City upwards, and joins with backwater location of Feilaixia Navigation Junction Complex. For the details of its geography situation please see Fig. 1-1. (3) Character of project: A new constructing project, it belongs to a Navigation Junction Complex constructing project. It included navigation lock, discharging sluice, power station, project of protective revetment;- a little dredging works in downstream, temporary projects, living area, etc. (4) The length of excavation section is 1630 km that will produce 25790m3 of dredging load; -three new spurs will be built along the downstream. (5) Investment of project: The investment is estimated at RMB 267,078,000.00. 1.2 Necessity of this project The Lianjiang watershed occupies 70% of total area of cities and counties such as Lianxian, Lianshan, Liannan, Yangshan, Yingde and so on. The watershed is rich in resource-, reserve of underground mineral resources and forest wood is tremendous. Because transportation here is very blocked, the rich economical resources could not be developed and utilized since a very beginning of history. This had made the economy and culture within this area draggled, and the local people's living level is rather low. Therefore, realizing canalization project alongside the whole Lianjiang River, developing navigational transportation, water and electricity as well as farmland irrigating has very important economical and political means to construct mountainous area and improve the living level of the people here rapidly. (1) Xiniu Navigation Junction Complex Project is the key project for developing water resources of Lianjiang River, improving navigational conditions alongside the whole main stream and realizing canalization of the River. Lianjiang River is a main river of the mountain area in northern part of Guangdong Province with a total length of main steam at 257km, flowing through the cities and counties including Lianshan, Liannan, Lianzhou, Yangshan, Yingde and so on, converging at Lianjiangkou in Yingde city and flowing into North River, with a total watershed at 10061 km. Lianjiang is always a main transportation channel of the hinterland with a centuries-old navigational history. In the recent years, its shipping amount has reached up about I million tons. The resources of water, mineral resources are very abundant in the watershed of Lianjiang River, hinterland of navigation of Lianjiang is very wide with a coverage to the adjacent provinces of Guangxi and Hunan, therefore, Guangdong Province Waterway Bureau pay great attention to the development of water navigation in Lianjiang River. According to the principle of comprehensive utilization for water resources, the departments of traffic and water electricity had worked out the developing two plans of canalization in 6 steps and 14 steps successively to 181 km navigation channel of the main stream of Lianjiang since 1958. Because backwater of Feilaixia Multipurpose Project of North River extends to Xiniu step through -a  ELA Report ofXiniu-Navigation Junction Complex Project Lianjiangkou, this will submerge the two steps of the lower reaches in the 14 steps plan. Therefore 12 steps plan is formed for the main stream of Lianjiang, and Xiniu step is the last step. According to the standards of the sixth class navigation channel, up to 1975, Lianjiang has become into a waterway with over 11 navigational steps above Jiaqiaoshi, canalization waterway 133.29km, and the annual shipping amount increased from about 100 thousand to I million tons. Because non-canalization river channel is presented in the waterway of 12.27km from Xiniu to Jiaqiaoshi, and this section of waterway is still situated in a natural status with many shoals, rapid water flow and narrow waterway; So, in dry season only 50 tons vessels can navigate this section and in rain season lOOtons vessels can navigate this section. This restrained the development of navigation transportation indeed, and the purpose of annual shipping amount at 2 million tons cannot be reached up. Therefore, the construction of Xiniu navigation junction complex will play a key role to realize canalization along the whole river of Lianjiang, to promote the communication with North River, to form a navigational networks of communicated among the main and branch streams, to utilize water resources sufficiently and to speed up the economical development of mountain area. So, the construction of this project is very necessary. (2) The construction of Xiniu navigation junction complex project will provide abundant water resources for the development of local industry and agriculture, as well as the springing up of various kind of businesses, it will play a key role for the local people to break away from poorness and to become richer and richer. In the area of Lianjiang, rainfall is abundant, and climate here is warm. This has provides an excellent conditions to develop agriculture, fruit, forest and promote aquacultureff,'l-r-ttttf4e. In the neighboring area of Xiniu project there are 8 villages belongs to Xiniu and Hanguang towns of Yingde City, with the population of 19644 people and plantation 1444.7ha. In this project, no investments are arranged in irrigation or water supply. But this project has the beneficial effects on improving of irrigation and water supply. After the finishing of this project, water source for irrigation of local farmland can be ensured, lift height of irrigation is reduced, and also the production cost will be reduced. This will provide good and exact conditions to increase the output of agriculture. Meanwhile, it will create an excellent environment and condition to the development of local industrial and rural enterprises, living water supplying, aquiculture, as well as tour career. Therefore, based on the local resources conditions, the construction of Xiniu navigation multipurpose project is a effective measures and requirements to bring up new economical increasing points, strengthen economical developing stamina, increase local income of finance, as well as break away from poorness and reach up rich living level. 1.3 Constructing scale and main components of the project (I) Location of dam Xiniu project is situated between the upper and lower Liangzhou (two sandbars in the middle of river) in the outlet of Qilixia Gorge of Lianjiang River. By comparing the locations of the upper, middle and lower, with the wide river surface and good geology conditions for construction, the middle dam location is recommend in the Report of project feasibility. 3  N~~~~~N1 W E o Yiliu 0 0 5 lOkm Shaoqua~~~~~~~0 0 5 10km <.< ... il, OLuyuanyaozhu Shaocuan0 o Hougongdu NanshuIR o Xiiian Longnan o.onggu6tvr gzhouba Dam o Luoyan oBaitu