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  SAF - Cooksbridge Wastewater Treatment Works  
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• Tighter effluent constraints under AMP3
• Solution to comply with Southern Water’s design Standard DST235
• SAF units and final tanks manufactured in stainless steel

Current Status: Installed October 2003
Client: Black & Veatch Costain JV
Population Served: 380
Consent 25:35:10 BOD:SS:Ammonia
Contract Value: £ 85,000
Brief Description: Design, supply, installation & commissioning of a complete new packaged sewage treatment plant


Project Need:

To upgrade the existing Sewage Treatment Works to meet the tighter effluent consent according to Southern Water’s design Standard DST235.

Description of Works; Tighter final effluent constraints to be imposed under AMP3 meant that the sewage treatment works serving the village of Cooksbridge was in need of replacement. Black and Veatch Costain JV, being the main contractor, approached Copa Limited to put forward a solution that complied with Southern Waters design Standard DST235. Copa designed, supplied, installed and commissioned a complete new packaged sewage treatment plant consisting of 2 No GRP Septic tanks, a new biological treatment unit and a GRP walk-in kiosk housing an MCC control panel and 2 No. 4 kW side channel air blowers. The package works was designed with ease of operation in mind and a long, maintenance free, service life has been ensured by manufacturing the SAF units and final tanks in stainless steel.

Key Elements;

• Outline and Detailed Design and Cost Estimates.
• Supply of 2 GRP 2 stage septic tanks.
• Supply and installation of 1 stainless steel CB500 above ground Copa SAF unit.
• Supply and installation of a GRP walk-in kiosk housing blowers and an MCC control panel.
• Electrical Site Cabling.
• Site Testing.
• Commissioning.
• Operation and Maintenance manuals.
• Staff Training.