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Medlock Quality Programme is part of United Utilities AMP6 investment programme across the North West and is the third Nereda® Reactor Plant to be operated by United Utilities. The scheme can be split into two distinct areas: (i) the upgrade of Failsworth WwTW to meet the new discharge consent and reduce the volumes of spills from the combined sewage overflow (CSO) and storm tank and (ii) a cluster of storm storage solutions across the Oldham combined sewage network to reduce discharges to the River Medlock. The main drivers are compliance with the Water Framework Directive (WFD) water quality standards in the River Medlock and compliance with the new 2mg/l ammonia and 2mg/l phosphorus final effluent standard at Failsworth WwTW.