Certificate for Services rendered by M/s. Creative Environmental Consultants for bidding for the 40 million liters daily (mld) advanced activated sludge Sewage Treatment Plant at Chennai for the Chennai Metropolitan Water Supply and Sewage Board during 2002.

M/s. Creative Environmental Consultants, AG 122, River View Colony, Anna Nagar, Chennai 600 040 assisted us during 2002 in bidding for the design build and O&M for 10 years of the advanced acivated sludge sewage treatment plant for 40 mld capacity at Nesapakkam - Chennai Metropolitan Area Water Supply and Sewarage Board in Chennai with methane gas recovery and generation of electrical energy therefrom using gas engines and to meet the discharge standards of the Government of India, Ministry of Environment and Forests, (MOEF) and National River Conservation Directorate (NRCD).

The plant consists of (1) mechanical screens, (2) detritors for grit removal, (3) primary clarifiers, (4) aeration tanks, (5) slow speed surface aerators, (6) secondary clarifiers, (7) Waste sludge pumpsets, (8) return sludge pumpsets, (9) sludge digesters with gas based mixing, (10) self regulating gas holders, (11) gas engines, (12) converters to electrical energy, (13) bowl centrifuges, (14) digesters, (15) sludge drying beds for spare capacities., (16) piping and valves, (17) electronic flow measurements, (18) laboratory, (19) chlorination of secondary effluents to attain discharge standards of MPN less than 10000 faecal coliforms per 100 ml for discharge the treated sewage directly into the Adyar rivercourse and for farm forestry for growing commercial tress.

The services provided by M/s. Creative Environmental Consultants were as under:

1. Analysis of sewage characteristics and validating the design criteria
2. Evaluation of alternative treatment processes for economical construction and O&M cost.
3. Establishing the cost effective treatment process for meeting the MOEF and NRCD standards.
4. Wetting of layout, hydraulics, mechanical and electrical equipment sizes and specifications.
5. Establishing coliform organisms removal technology by chlorination.
6. Technical discussions with sub-vendors and O&M contractors and price negotiations.
7. Cost optimization for construction as well as O&M.
8. Preparing the write-up for tendering including the construction methodology.
9. Presentations before the expert committee of the Board constituted with the local Anna University.
10. Preparation of replies to clarifications received from the board.
11. Providing supervision assistence in construction and in O&M.

The tenders have been processed by the Board and Anna University and clarifications have been obtained from the bidders and opening of the financial bid is awaited.

The services provided by M/s. Creative Environmental Consultants were found to be of a professionally high order, to the expectations of ECCI and timely without default at any time. We record our appreciation to them and wish them continued recognition in their endeavours.