The Mersey Rivers Trust is split into 3 operational catchments:

• Liverpool City Region

• Greater Manchester

• Cheshire

Liverpool City Region is made up of the following district council regions:

• Halton
• Knowsley
• Liverpool
• Sefton
• St. Helens
• West Lancashire
• Wirral

Greater Manchester is made up of the following district council regions:

• Bolton
• Bury
• High Peak
• Manchester
• Oldham
• Rochdale
• Salford
• Stockport
• Tameside
• Trafford
• Wigan

Cheshire is made up of the following district council regions:

• Cheshire East
• Cheshire West and Chester
• Warrington