Oxford STW Upgrade Project

Tender description

AMP7/AMP8 upgrade project at Oxford Sewage Treatment Works (STW) Lot 1: AMP7/AMP8 upgrade project at Oxford Sewage Treatment Works (STW) 1. Compliance with a new quality permit consisting of an ammonia consent reduction from 3mg/l to 1mg/l; and a Tot-P reduction from 1mg/l to 0.25mg/l. 2. Increase flow to full treatment from 1,040l/s to 1,802l/s. 3. Increase in the storm tank capacity from 6,831m3 to 18,167m3. 4. Replace inlet works and upgrade the effluent treatment process with a new 170,000PE stream. 5. Increase dissolved oxygen level in the final effluent channel. 6. Address existing effluent stream process capacity pinch points. 7. Increase the throughput capacity of sludge treatment process. 8. New power supply, HV ring main, fibre optic network and SCADA upgrade.