United Utilities

Serves Cumbria, Lancashire, Greater Manchester, Cheshire, Merseyside. Major rivers: Mersey, Ribble, Lune, Eden.

United Utilities operates 2,260 monitored storm overflows. 36 monitors are offline. In the last 30 days the network has discharged a cumulative 39 weeks across 1,436 events on average. The Truth Engine has 53 open flags against them right now.

📍 View on national map →📄 Download Truth Report (PDF)⬇ Overflows · CSV

2,260

Storm overflows

Active right now

Monitors offline

Open flags

359

Spills · last 7 days

39 weeks

Cumulative discharge · 30 days

7.7 h

Avg event length · 30 days

Spills · last 24 hours

Most-discharged-into watercourses

The 12 watercourses with the most United Utilities overflows discharging into them.

River Irwell61 overflows
River Tame51 overflows
River Mersey40 overflows
Mersey Estuary36 overflows
River Eden30 overflows
River Irk29 overflows
River Medlock22 overflows
Manchester Ship Canal21 overflows
River Goyt20 overflows
River Bollin19 overflows
River Roch19 overflows
River Weaver18 overflows

Truth Engine flags against United Utilities· 25 open

Monitors offline· 36

UUP00091 · Ormsgill Reservoir (via a surface water sewer)16.1 h
UUP02266 · TABLEY BROOK16.4 h
UUP01216 · Wrea Brook4 days
UUP00202 · River Sett9 days
UUP01094 · Birkin Brook11 days
UUP00261 · River Keekle13 days
UUP01548 · Dyan Beck13 days
UUP01033 · Mersey Estuary2 weeks
UUP01924 · Mersey Estuary3 weeks
UUP01212 · Unnamed Tributary of River Chor6 weeks
UUP01120 · Kidsgrove Stream7 weeks
UUP01849 · Bidston Stream7 weeks