The misconnected pipes polluting urban rivers
Misconnected pipes are causing untreated sewage to pollute urban rivers, particularly affecting the Wandle in south-west London. These misconnections divert wastewater into surface drains, harming wildlife and river ecosystems. Homeowners may be unaware of these issues, which can lead to costly repairs once identified.
- ▪Hidden plumbing errors are sending untreated household sewage into rivers, polluting waterways without residents' knowledge.
- ▪The Wandle, a chalk stream, is one of the rivers affected by these misconnections, which can include raw sewage and chemicals.
- ▪Thames Water has investigated over 20 suspected misconnections in the past three years, but many homeowners are unaware of their property's misconnection.
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| Original publisher | BBC News — Science |
| Canonical URL | https://www.bbc.com/news/articles/czd2qd00j9vo?at_medium=RSS&at_campaign=rss |
| Publication time | Tue, 26 May 2026 05:10:31 GMT |
| Retrieval time | 2026-05-26T05:12:43.569Z |
| Last seen | 2026-05-26T05:12:43.569Z |
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The misconnected pipes polluting urban riversJust nowShareSaveAdd as preferred on GoogleHarrison GallivenLocal Democracy Reporting ServiceGetty ImagesHidden plumbing errors are sending untreated household sewage into rivers, polluting waterways without residents' knowledge. One south-west London river has been badly affected by these misconnections.A misconnection happens when wastewater is incorrectly diverted into surface drains, leading to pollution in nearby waterways.Pollutants may include raw sewage, chemicals and physical debris which are harmful to wildlife and lead to further degradation of river ecosystems, according to Dr Isobel Ollard from the South East Rivers Trust (SERT).The Wandle, a 12-mile (19km) chalk stream running from Carshalton to the Thames at Wandsworth, is one…
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