This document presents insights we have drawn from exploratory analysis of data used by the Environment Agency as part of its regulation of storm overflows. The purpose of this document is to provide contextual data to support the Environmental Audit Committee’s inquiry into water quality in rivers and set out areas for further consideration.

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We set out:

  • Insights from the monitoring of spills from storm overflows
  • How this relates to the amenity of the receiving water body
  • Insights from pollution incidents from storm overflows reported to EA
  • Summaries of water quality sampling, enforcement actions against water companies and EA’s income and funding