integrated coastal zone management project west ... - Iczmpwb.org

180203. The suspended sanitary sewerage scheme of Digha area has now been re-designedconsidering a design period up to 2025 and additionally including Udaypur area of NewDigha and is proposed to be taken up as a component of the SPR of West Bengal.204. The design parameters of the scheme are as follows:i. Design population in 2025 : 61,115ii. Anticipated floating tourist in 2025 : 14,920iii. Per capita sewage flow : 100 lpd (assuming per capita watersupply as 125 litres / day and spend water flow as 80%)iv. Ground water infiltration for a command area of 300 hectares : 1500 KLDv. Total sewage generation : 6.7 MLDvi. Existing length of sewer line : 6496 mvii. Proposed length of sewer line : 12150 mviii. Diameter range of sewer line : 150 mm to 600 mmix. Existing length pumping main : 1248 mx. Proposed length pumping main : 1040 mxi. Existing sewage lifting stations : 3xii. Proposed sewage lifting stations : 1xiii. Existing sewage pumping stations : 1xiv. Proposed sewage pumping stations : 1xv. Capacity of sewage treatment plant : 6.7 MLDxvi. Process of sewage treatment : Waste Water Pond205. The methodology of treatment proposed is Waste Water Pond (WSP) comprisinganaerobic, facultative and maturation ponds. The top dimension including free board of theanaerobic (4 nos), facultative (8 nos) and maturation ponds (24 nos) will be 53 m x 30m x3.5 m, 88 m x 44 m x 2 m and 45 m x 17.7 m x 2 m respectively.206. The total time required for execution of the proposed component is three yearsincluding time required for tendering, vendor selection and six months of trial run. The totalestimated cost of the renovation work of Digha sanitary sewage scheme is Rs 3559.23 lakhs(project cost to be financed is Rs 3424.50 lakhs) comprising costs related to civil works aswell as mechanical/electrical works . The cost also includes charges for service connectionas well as cost of trial run and guarantee for initial three years of operation and maintenanceby the agency (Rs 180.00 lakhs) executing the entire work on turn-key basis. Monitoring andevaluation cost has not been given separately in DPR. The scheme will be implemented bythe Public Health Engineering Directorate of Government of West Bengal.Component B.3 - Solid Waste Management in areas under Digha-SankarpurDevelopment Authority (DSDA)207. Although Digha town was established long time back, no worthwhile solid wastemanagement system has been in place resulting in unscientific deposal of refuge and thereby