River water quality

Curious about the health of the River Wensum in Norwich? This page offers a clear view of how water quality is monitored locally, where samples are taken, and how to access the latest data.

The Environment Agency monitors water quality along the River Wensum with monthly sampling at several key locations in Norwich.

Explore the data:

Visit the Environment Agency’s Water Quality Explorer to view detailed results.

Sampling locations in Norwich

Here are the sites where monthly water quality samples are taken:

  • Whitefriars Bridge – ID: AN-WEN275
  • New Mills – ID: AN-WEN260
  • Dolphin Concrete Bridge – ID: AN-WEN256A
  • Sweet Briar Road Bridge – ID: AN-WEN250
  • Hellesdon Meadow – ID: AN-RSN0357
  • Hellesdon Mill – ID: AN-WEN240
  • Carrow Bridge – ID: AN-WEN280
  • Trowse Swing Bridge – ID: AN-WEN285

Designated bathing waters

There are currently no designated bathing water sites in Norwich.

However, several coastal locations in Norfolk are designated and monitored during the bathing season (May–September).

Check weekly water quality

Visit Swimfo for up-to-date results on designated bathing waters.

Reporting water pollution

To report pollution or concerns about river or broad water visit the Environment Agency website or call:

  • General enquiries: 0870 850 6506
  • Emergencies or pollution incidents: 0800 807 060 (24/7)
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