Shanghai Sewerage Project II
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SHANGHAISEWERAGE, PROJECTr 2 CON-STRUCTIONCOMEPANY PROJECT Public Disclosure Authorized [,, r -'SHANGHAI SECDSEWERAGE DESIGN REVIEW AND ADVISORYSERVICES JUN0 5 S0 r5;: } /0 KL; Appraisal Report - Volume 4 /4 ~~~~~~~~RECEIVE ENVIRONMENTALASSESSNMEN X Public Disclosure Authorized Public Disclosure Authorized JUN05 The World Bank Public Disclosure Authorized ShanhaiAcademyof EavirnmezutalScdences In associatiowith, ga Wo.INJTtE5R- ur.. 498'-=N CONSULT J Maoa an . ;I, j.el . #. - , ,, - . .5 . .......... .. Seod Sbanghi Sew-a Pwojec May 1995 ApptaiLl Rqxpt - Vdume 4-E nvamneAess PREFACE Introduction This English version of the EnvironmentalAssessment Report (EA) for the Shanghai Second Sewerage Project (SSPII) Phase I has been peared by the Shanghai Academyof Enironental Sciences (SABS) in close contac with the intemational Design Review and Advisory (DRA) Consultant. SAES was assigned by the ShanghaiSewerage Project ConstructionCompany (SSPCC) to carry out the environmentalassme for SSPII,which the World Bankchas classifiedas a CategoryA project. A Prelimiary EA (PEA) was completedby SAES in August 1994. This documentwas reviewed by the DRA Consultant and the conclusions were presented in the Predesign Review Report (PDR) prepared by the DRA Consultantin January 1995. Since then SAES has completed the Fmal EA. i.e. a refined and updated report based on the comments made by the DRA Consultant on the PEA, and an newly available infonnation and decisions reached during preparationof the project. The primary task for SAES has been to prepare a Chinese version of the EA, intendedfor the national approval process for which NEPA has responsibility. In addiion, SSPCC has responsibilityfor providing an English version for approvalboth by NEPA and the Wodd Bank. This version should comply with the World Bank OperationalDirective 4.01 (OD 4.01). The DRA Consultant is responsiblefor ensurng that the Fmal EA has been udated in accordance with OD 4.01, and that all issues which have emerged as a result of the on-goingplanning process. are adequatelydealt with. In order to make this feasible the DRAConsultant has worked in close co-operaion with SAES. As far as possible marial prepared by SAES, has been translated and made available to the DRA Consultant. By frequent contact, the various commentsand suggestionsof the DRA Consultanthave been conmnunicatedto SAES, to enable the Academyto consider necessaryadjustnents or additions in the Chinese version of the EA. The English version of the EA is based on a translationof the Chineseversion that has been submitted to NEPA for approval. Some topics consideredto be of particulr interest to the World Bank have been further elaboratedby the DRA Consultantand presented in SupplementaryDoctuments. It should be noted that these documentsare fully in accordance with the results and conclusions of the nmin report. Several reports includedas backgroundmaterial in the Chinese versionare not translated intoEnglish. RevWw 025 May 995 AppRep%v4.ow 1 PrEfe p- Seod Sbaghai Sewerg Proect may 1995 Appraisal Report - Vohume4:Ervironmeaul Asscsuent The English version is prested in the same fonmat as the Chinese version. This means that the format of OD 4-01 is not followed strictly. A List of Chapters in this dotcm includes cross- references to the OD 4.01 format for ease of refence. This procedure and format has been adopted in order to ensure high confonmity bween the two documents so that Ihe national handling and approval process can be facilitated. Scope and Status of the Report This Environmental -Assessnent Report is a 'second level' document in a series of reports produced for the World Bank appraisal of the SSPI project scheduled for June 1995. The series of reports includes three levels of docuntation; Strategic Planning Report Top level, master plan update for Shanghai City. Feasibility Report Second level, covers the whole SSPUI project, and includes several stand-alone volumes including this Enviromnental Assessment Report. However this document is mainly concened with Stage I of the Project, Enginoeerng Third level, covers SSP!I Stage 1. Report Figure p.1 illusaes the rdationship between the three levels of documentation and the various volumes. Organisation and Management of the Report This Report was prepared as part of a study carried out for the preparation of the SSPII Project, which is included in the World Banks three year lending programme for China. To carry out the study, the World Bank commissioned Design Review and Advisory Services in connection with the planning and design of the project and appointed lnacnsult A S (the DRA Consultant) to undertake the work. The contract was funded by the Norwegian Consultant Fund, Account Nr. TF 020464 The DRA Consultant entered into an associaion with Mott MacDonald of the UK for this workL In addition. bilateral funding from the Governments of France and Canada enabled specialist inputs on the trament of the wasewater and on connection/rehabilitation strategy to be provided by Sogreah of France and Reid and Crowther of Canada respectively. The work was undertake in collaboration with vanous local design bureau and consultants, and all Revision 0:25 May 1995 AppReplv4.ow Pra p-2 SecandShanghai Sevetage Poect may 1995 Appiam Rapon - Volume4:FAvzwinel Assmuue tasks undertaken by the DRA Conult wer performedjoindy and integcly with these bodies. The Shanghi Sewerage Company (SSC) is responsiblefor wastewater managementand SMG has formed Shanghai Sewerage Project Construction Company (SSPCC) to undertake proiect implenentation. Acdowledgeo ents The SSPII Project was undertakenjointly by the DRA Consultantsand the numerousorganisations which fall under the umbrellaof ShanghaiMunicipal Government. The DRA Consultantswould like to express their appreciationof the help given during the project and the prepartionof the EA by all their professional friends and colleguesin Sbanghai.A list of panicipatingorganisasions and persons in the EA preparation work is given in Appedix F. The DRA Consultant commencedwork in October 1994. Revioa 0.25 My 1995 AppRepAv4.ow Prace 3 FIGURE P.1 SECONDSHANGHAI SEWERAGE PROJECT STRUCTUREOF PROJECTAPPRAISAL REPORTS PRIMARYLEVEL DOCUMENT (VOL 1) STRATEGICPLANNING REPORT SECONDARYLEVELOOCtMENT(VOL2) FEASLUY REPORT TEAWf LEL DOCUMENrT(OL3) ENGINEERAIGIhORT SHANGHAICIlY SMSPIIT_S8AGE1 | | I I I~~~~OL RESErEBENREAVi N M~~~~~~~~M Seond Shghai Scwragc Poject May 199S APPrA Repon - Vohlnu 4:Evironenal Assussmew TABLE OF CONTENTS Preface EXECUTVE SUMMARY [NTRODUCTION 1-1 1.1 BackgroundInfonnation about Shanghai 1-1 1.1.1- LocationandClimate 1-1 1.1.2 Social Economy 1-1 1.1.3 Water Network 1-1 1.1.4 Existing SewerageSystem 1-2 1.2 Sewerage Development 1-3 1.2.1 ShanghaiComibined Sewerage Project Stage I (SSPI) 1-3 1.2.2 Transfer of Water Supply Intake to the Upper Huangpu River 1-4 1.2.3 Wujing and Minhang Sewage Outfall Constructionproject 1-4 1.2.4 SewageDisposal in the Pudong Area 1-4 1.2.5 ShanghaiSecond Sewrage Project (SSPII) 1-5 1.3 Need for the Project 1-5 1.4 AssessmentObjectives 1-7 1.5 Basis of the Environental Assessment 1-7 1.6 Criteria for the EnvironmentalAsessme 1-8 1.7 Assessmen Paramerersand Scope 1-9 - 1.7.1 AssessmentParameters 1-9 1.7.2 Assesment Scope 1-9 1.8 Contents of the Report 1-9 1.8.1 Contentsof the Main Report 1-10 1.8.2 Contentsof Sub-reports 1-10 1.9 Study Approachfor the EA 1-12 2. PROJECT DESCRIPTION 2-1 2.1 Service Area 2-1 2.2 Design Capacityand Watcr Quality 2-1 2.2.1 Design Capacity 2-1 2.2.2 Design Strengdhof Sewage 2-3 2.3 Options for Trunk Sewer Routing 2-5 2.3.1 Pdxi 2-5 2.3.2 Pudong 2-5 2.4 Project Elemens 2-6 Rcvision 0:24 niai1995 AppRcpXv4woco*w Toc T-1 Scond Shani Sgew Pojeea Mav l95 Appraisal Reporn- Vohum 4:hEawoa AessmeNt 2.4.1 Pumping Stations 2-6 2.4.2 Trunk Sewer 2-7 2.4.3 Sewage Treatment Plant 2-8 2.4A Oiutfall 2-8 2.5 Construction Methods and Spoil 2-8 25.1 Construction 2-8 2.5.2 Quantity of Spoil 2-9 2.5.3 Options for Spoil Disposal 2-9 2.6 Land-Acquisition and Borrowing 2-9 2.7 Project Cost 2-10 2.8 Schedule of the Project 2-10 3. ENVIRONMENTAL SElfING OF THE PROJECT-RELATED AREA 3-1 3.1 Natral Setting 3-1 3.1.1 Geographic Situation 3-1 3.1.2 Geology and Morphology 3-1 3.1.3 Clme 3-1 3.1.4 NatrmalDisaster - Eartqupake 3-2 3.1.5 Groundwater 3-2 3.2 Ecological Enviroment 3-2 3.2.1 Coastal Shoal Resoucmes 3-2 3.2.2 Natural Vegetation 3-2 3.2.3 Planted vegetation 3-3 3.2.4 Fauna 3-3 3.3 Socio-EconomicAspects 3-3 3.3.1 Populationand Land 3-3 3.3.2 Resourcesof Rural Labour Force 3-4 3.3.3 Agriculnural Production 3-4 3.3.4 Inhstril Productiom 3-5 3.3.5 Rural Cultral. Educational and Public health Undertakings 3-5 3.4 Status of Sewerage Systems 3-5 3A.1 Status of seweage Systen in Luwan and Xuhui Districts 3-5 3.4.2 Status of Sewerage System south of Zhaojia Gou, Pudong 3-6 4. PRESENT STATUS OF RIVER SYSTEMS IN THE SHANGHAI AREA 4-1 4.1 Environmentl Status of the Huangpu River and Illand Waterways 4-1 4.1.1 Background 4-1 4.1.2 The Huangpu River 4-1 Revision024 4ni 1995 AppRcp%-42-- Toc T-2 Seod Sangbai Seweage Proec May 1995 AppraisatRPpon - VoVoue4:1vmuml AssEmi 4.1.3 Puxi Tnbutaies of the HuangpuRiver 4-2 4.1.4 Network of Watrways in Pudong Area 4-4 4.2 Envionmental Status of the Chan2iang Estuary 4-6 4.2.1 Natural Conditions 4-6 4.2.2 Water EnvironmentalConditions 4-8 5.