annexures - Indian Institute of Technology Roorkee

CHAPTER 2COLLECTION OF DATA2.1 INTRODUCTIONAs stated in Introduction, preparation of Detailed Project Report for pollution abatement is athree step process, namely, City Sanitation Plan (CSP), Feasibility Report (FR), followed by theDetailed Project Report (DPR). This chapter deals with collection of data required for preparingall these reports. Some states have already started preparing CSPs. Where available, these CSPsshould be used. If necessary, they may be updated and if there are any gaps in relation to theriver pollution abatement works, these should be filled up.Preparation of CSP is to precede the FR and is to be the basis for preparing the DPR. It follows,therefore, that it should be prepared on the basis of available data (Primary / Secondary Data)that has been generated by the concerned agencies and primary data may also be required.Feasibility Report will identify the problem of pollution, develop and evaluate the variousoptions and select the best that is cost effective and sustainable and produces the intendedoutcome.After selection of a city on the basis of data collection, it is necessary to prepare a CSP, FR ofsewerage schemes and then a DPR. The DPRs of non-sewerage schemes can be preparedstraight after the preparation of CSP. For preparing the DPR, additional data may be needed,which may have to be generated by undertaking suitable survey and investigation (primarydata).In this chapter, the guidelines deal with collection of primary and secondary data.2.2 DATA REQUIRED AT DIFFERENT LEVELSThe data needs to be gathered at several levels as below:i. Drainage basin of the river, in which polluted stretches have been identified and in respectof which the pollution abatement project is to be prepared. This will help to identify thepriority for taking up pollution abatement works to improve the river water quality.ii. The town which is causing pollution of the river and for which an integrated project is to beprepared for abatement of pollution from waste water and solid waste. A town may haveto be divided into a number of sewerage districts for getting optimal results and datagathered should meet this need. In case some data mentioned below is not available, itmay be stated at the appropriate place. However, DPR should integrate all the dataprovided by agencies concerned for pollution abatement.2.3 DATA RELATED TO DRAINAGE BASINIt is beneficial for the planner to have an understanding of the river basin as every activityundertaken at any point in the basin has implications for the river as a whole, though moreoften on the downstream side. It is, therefore, necessary to identify activities and their impacton the river. Relevant data must be collected and analysed so as to assign priority to towns fortaking up pollution abatement works. Data that needs to be collected is mentioned below.12