Under Ground Sewerage Scheme in leftover / added areas in 6 towns in Northern Cluster (Krishnagiri, Dharmapuri, Maraimalai Nagar, Cuddalore, Vellore and Thiruvannamalai) in Tamil Nadu from PGDF under Government of Tamil Nadu Fund (Sewer Line Length : 785 km) (Project Cost : INR 10308.8 Million)

Funding Agency: Project Development Grant Fund (PDGF)

Location: Tamil Nadu

To achieve the goals set forth in the National Urban Sanitation Policy such as eradication of open defecation, achieving total sanitation to all etc. The objective of the assignment is to study, analyse, plan, design and prepare comprehensive DPRs in the leftout / added areas in 6 towns of Northern Cluster in Tamil Nadu by undertaking a technical, financial, economic, environmental and social study, prioritized capital investment plan, detailed design, drawings, cost estimates and bidding documents for planning and implementation

Actual Services provided by the Firm

• Preparation of detailed profile of the town mapping, socio economic, demographic, administrative, physical, environmental, land use, historical, features of the study area. • Review of existing UGSS System including storm water network for the entire Project Area and assess the present condition of the water supply. • Evaluation of present status of sewage generation, storage and disposal practices in the prevailing UGSS in each of the towns. • Estimation of current population and projected population for base year, intermediate and ultimate years. • Analysis of the quantum of sewage generation including industrial sewage and their characteristics based on water supply schemes presently being implemented/proposed to be implemented in the study area, existing water sources for supply of water, finalizing the design criteria in conformity with CPHEEO and other national standards for providing sewerage scheme in the project area. • Topographical Survey of the Project Area. • Undertaking Mobile LiDAR Surveys for 857km lengths • Creation of Temporary Bench Mark (TBM) within the project area with respect to the known GTS benchmark. • Divided the Project area into convenient zones based on contours and levels. • Fix the peak factor based on zoning population and as per CPHEEO guidelines. • Identified sites for sewage lift stations / pumping stations in the project area • Identified STP/SPS/LS. • Undertaken Geotechnical Survey • Preparation of Project Design and Drawings • Prepared Design for Sewage Treatment Plant / Pumping Stations / Lift Stations with all components and cost estimate, design and drawings for Electrical and Mechanical installations including good for construction drawings. • Estimation of underground utilities including water supply lines, OFC cables, etc., as well as above ground obstructions such as HT lines, hoardings etc. • Analyzed various Sewage Treatment Technologies with respect to area, cost, etc., and effluent characters and suggested suitable disposal point for treating sewage in the existing STPs of the respective ULB. • Undertook Environmental and Social Impact Assessment studies. • Prepared financial models for the estimated project cost by analyzing minimum five years financials of each of the ULBs and prepared FoPs. • Prepared Quality Assurance Plan, Safety Plan, and Environmental Management Plan. • O&M and Maintenance Management Plan.