Rivington Water Treatment Works is a water treatment plant in Rivington, Lancashire, England.[1] It is located below the Lower Rivington Reservoir, the last in the Rivington chain of reservoirs. The first treatment works, a slow-sand filter plant on the site opened in 1860, supplying water to Liverpool. The present works was built in 1994, and in 2007 was the largest automated three-stage plant operated by United Utilities, the water is now disinfected by adding small amounts of chlorine.[2] Most of its output supplies customers in the Wigan area.[3]
Raw water from the Rivington chain of reservoirs can be supplied to the Thirlmere Aqueduct via a pipeline downstream of the Lower Rivington Reservoir embankment and treated water via a pumping main and the Treated Water Pumping Station on the Rivington Water Treatment Works site. .