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Infiltration Reduction Plans

Sometimes, water can enter our wastewater pipes which they were not designed to receive. One source of these additional flows can be groundwater which can enter sewers through pipe defects, leaky joints or through manholes. Extra water infiltrating into the network can cause sewer capacity to be exceeded, leading to sewer flooding or contributing to storm overflow activations.

So, to improve river water quality and maintain an effective wastewater network across the North West, we have created Infiltration Reduction Plans that show how we will address groundwater infiltration. The plans below are for sites where groundwater infiltration has been identified as potentially causing storm overflow discharges in 2022 and/or 2023. For each site, we explain what investigation work is being done and recommended solutions.

You can view a summary of our regional Infiltration Reduction Plan, which covers all our catchments, here.

Our plans for Cumbria
Blennerhassett Infiltration Reduction Plan (PDF 0.2 MB opens in a new window)
Blindcrake Infiltration Reduction Plan (PDF 0.2 MB opens in a new window)
Bolton Low Houses Infiltration Reduction Plan (PDF 0.2 MB opens in a new window)
Braithwaite Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Brough Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Caldbeck Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Cark Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Cartmel Infiltration Reduction Plan (PDF 0.2 MB opens in a new window)
Cote Hill Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Crosby Garret Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Eaglesfield Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Embleton Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Gilsland Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Glasson Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Gleaston Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Grange Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Great Orton Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Greystoke Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Hayton Infiltration Reduction Plan (PDF 0.2 MB opens in a new window)
Ireby Infiltration Reduction Plan (PDF 0.2 MB opens in a new window)
Kaber Infiltration Reduction Plan (PDF 0.2 MB opens in a new window)
Kirk Bampton Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Low Hesket Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Newbiggin Infiltration Reduction Plan (PDF 0.2 MB opens in a new window)
Orton Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Plumbland Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Skelton Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Torpenhow Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Our plans for Cheshire
Whitemore Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Our plans for Lancashire
Barrow Nook Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Ingleton Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Long Preston Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Withnell Fold Infiltration Reduction Plan (PDF 0.3 MB opens in a new window)
Our plans for Greater Manchester
Hulton Lane Ends Infiltration Reduction Plan (PDF 0.2 MB opens in a new window)