A warning is in place after sewage has been discharged into the sea and one river in four areas of West Dorset.
Surfers Against Sewage is tracking real-time sewage discharge and pollution risks around the UK.
Following heavy rainfall, pollution alerts have been put in place in Charmouth and Lyme Regis.
As of today (Thursday, October 17) sewage has been reported in the last 48 hours at Charmouth West Stream, Church Cliff Beach and Front Beach in Lyme Regis.
A statement from Surfers Against Sewage said: "Pollution Alert: Storm sewage has been discharged from a sewer overflow in this location within the past 48 hours.
"During and after heavy periods of rainfall, runoff from surrounding agricultural areas will greatly increase and bathing water quality may be reduced.
A sewage alert is also in place for Chesil Cove on Portland.
Sewage discharges can be tracked via an interactive map on the Surfers Against Sewage website: https://www.sas.org.uk/water-quality/sewage-pollution-alerts/
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