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.
Water from the Rivington reservoir system can be transported to the Thirlmere Aqueduct via a pipeline, downstream of the Lower Rivington Reservoir embankment and then treated at the Rivington Water Treatment Works before being pumped through a main to the Thirlmere Aqueduct.