Sewage

Water company · 2025

Anglian Water's sewage record

16,183 discharges from 1,398 monitored storm overflows in 2025, for 98,196 hours in total. These are the Environment Agency's published figures.

16,183discharges
98,196hours
118monitors working under 90% of the year

The ten worst overflows

OverflowIntoConstituencyDischargesHours
Grimsby Pyewipe Wrc and Tps The River Humber Great Grimsby and Cleethorpes 155 506
Hallaton STW Medbourne Brook River Welland Rutland and Stamford 155 1,126
Ramsey Water Recycling Centre The Ramsey High Lode North West Cambridgeshire 145 1,432
Thorpe Malsor STW Shutlanger Brook Kettering 118 757
Great Easton(Leics) STW River Welland Nt Rutland and Stamford 111 1,895
Manthorpe STW East Glen River Rutland and Stamford 111 335
Nettleham STW Nettleham Beck Gainsborough 109 1,585
Foxton (Cambs) Wrc River Rhee South Cambridgeshire 102 1,645
Welton N'Hant Water Recycling Cntr Whilton Branch R Nene (Nt) Daventry 99 1,239
Southend Sewage Works Thames Estuary — 94 237

The constituencies it affects most

  1. Rutland and Stamford — 1,027 discharges from 44 overflows
  2. Daventry — 931 discharges from 50 overflows
  3. South Northamptonshire — 820 discharges from 63 overflows
  4. Gainsborough — 659 discharges from 33 overflows
  5. Louth and Horncastle — 516 discharges from 42 overflows
  6. Kettering — 507 discharges from 35 overflows
  7. Brigg and Immingham — 431 discharges from 27 overflows
  8. Buckingham and Bletchley — 417 discharges from 23 overflows
  9. Sleaford and North Hykeham — 383 discharges from 23 overflows
  10. Ely and East Cambridgeshire — 377 discharges from 53 overflows

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