URBAN and ENVIRONMENTAL IMPROVEMENT PROJECT Loan No
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Executing Agency Government of Nepal Ministry of Physical Planning & Works Department of Urban Development & Building Construction UEIP, Project Coordination Office URBAN AND ENVIRONMENTAL IMPROVEMENT PROJECT Loan No. 1966 NEP (SF) FINAL REPORT for INITIAL ENVIRONMENT EXAMINATION (IEE) of SANITATION & WASTE WATER MANAGEMENT INCLUDING REED BED TREATMENT PLANT SUB-PROJECT OF BANEPA MUNICIPALITY September 2009 IMPLEMENTING AGENCY Banepa Municipality Urban & Environmental Improvement Project (UEIP) Project Implementation Unit(PIU) Banepa, Kavrepalanchowk, Nepal TABLE OF CONTENTS Abbreviations Executive Summary 1. NAME AND ADDRESS OF THE INSTITUTION PREPARING THE REPORT ...................1 2. THE PROJECT ....................................................................................................................2 2.1 General Introduction ..............................................................................................2 2.1.1 Background .........................................................................................2 2.1.2 Project Objectives...............................................................................3 2.1.3 Impact on Land Use ............................................................................3 2.1.4 Adverse Impact on the Environment, human life and population pressure ..............................................................................................4 2.1.5 Damage to be suffered by local goods or objects...............................4 2.1.6 Relevancy of the Project/ Rational for Conducting IEE ......................4 2.1.7 Procedure and Methodology Adopted ................................................5 2.1.7.1 Physical Environmental Assessment .............................................5 2.1.7.2 Biological Environmental Assessment ...........................................5 2.1.7.3 Socio-economic and Cultural Environment Assessment................5 2.1.7.4 Evaluation of the Impacts of the Project on the Environment.........5 2.1.7.5 Overview of IEE Study ...................................................................5 3. DESCRIPTION OF THE PROJECT ....................................................................................6 3.1 Type of Project .......................................................................................................6 3.2 Nature and Type of goods delivered ....................................................................6 3.3 Proposed Project....................................................................................................6 3.3.1 Materials Used....................................................................................6 3.4 Emissions resulting from the Implementation of the Project ............................6 3.4.1 Solid Waste.........................................................................................6 3.4.2 Waste Water........................................................................................6 3.4.3 Air Quality............................................................................................7 3.4.4 Odor Problem......................................................................................8 3.4.5 Noise and Vibration.............................................................................8 3.5 Energy to be used ..................................................................................................8 3.6 Manpower Requirements.......................................................................................8 3.7 Resource Required ................................................................................................9 3.8 Detailed Particulars of the Project Area.............................................................10 3.8.1 Maps..................................................................................................10 3.8.2 Population and Settlement Conditions..............................................10 3.8.3 Particulars of Sensitive Things or Objects within the Project Area...12 3.8.4 Current Situation ...............................................................................12 3.8.4.1 Water Supply................................................................................12 3.8.4.2 Source of Water ...........................................................................12 3.8.4.3 Existing Drainage Situation ..........................................................13 3.8.4.4 Sewerage and Sanitation .............................................................13 3.8.4.5 Solid Waste Management ............................................................14 3.8.5 Arrangement of Disposing/ Processing Waste .................................14 3.8.6 Paths for Movement in the Project Area ...........................................14 3.9 Manufacturing Processes....................................................................................14 3.9.1 RCC Pipes.........................................................................................14 3.9.2 Overflow Structure ............................................................................14 3.9.3 Type of RBT System .........................................................................14 3.9.3.1 Primary Treatment Unit ................................................................15 3.9.3.2 Septic Tank ..................................................................................15 3.9.3.3 Sludge Drying Bed .......................................................................15 3.9.3.4 Reed Bed Treatment Unit.............................................................15 3.9.3.5 Outfall...........................................................................................15 3.9.3.6 Raw Materials to be used.............................................................16 3.10 Details of Technology ..........................................................................................16 3.11 Project Components ............................................................................................16 3.11.1 Pipe Velocity......................................................................................16 3.11.2 Pipe Size ...........................................................................................17 3.11.3 Manholes...........................................................................................17 3.11.4 Rain Water inlet.................................................................................18 3.11.5 Water Sources...................................................................................18 3.11.6 Sewer Pipelines or Sewer Channels.................................................18 3.11.7 Constructed Wetland/ Reed Bed Treatment Plants..........................18 3.12 Salient Features of Sewer System......................................................................21 3.13 Salient Features of Reed Bed Treatment Plant..................................................23 3.14 Project Activities ..................................................................................................25 4. IMPACT OF IMPLEMENTATION OF PROJECT ON THE ENVIRONMENT ....................26 4.1 Impact on the Social, Economic and Cultural spheres.....................................26 4.1.1 Construction Stage............................................................................26 4.1.1.1 Degradation of Cultivated Land....................................................26 4.1.1.2 Destruction of Forests ..................................................................26 4.1.1.3 Impact on Human Health..............................................................26 4.1.2 Operation Stage ................................................................................26 4.1.2.1 Impact on Human Health..............................................................26 4.2 Change in Social, Cultural and Religious norms and values...........................27 4.2.1 Construction Stage............................................................................27 4.2.1.1 Cultural Values.............................................................................27 4.2.2 Operation Stage ................................................................................28 4.2.2.1 Impact on Socio-Economic Spheres ............................................28 4.2.2.2 Socio-Economic Spheres.............................................................28 4.2.2.3 Archaeological and Historical Values...........................................28 4.3 Biological Impacts................................................................................................28 4.3.1 Construction Stage............................................................................28 4.3.1.1 Population ....................................................................................28 4.3.1.2 Flora and Fauna...........................................................................28 4.3.1.3 Natural Habitats and Communities...............................................28 4.4 Physical Impact ....................................................................................................29 4.4.1 Construction Stage............................................................................29 4.4.1.1 Land .............................................................................................29 4.4.1.2 Atmosphere..................................................................................29 4.4.1.3 Water............................................................................................29