Top of the Poops | Waterway | River Tamar | Polluted by South West Water

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Totals for River Tamar in 2025

28 Sites polluted by South West Water

1,460 sewage dumps
13,790 h duration

That's 1.6 years. On average 4 times a day

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Constituencies along River Tamar

Places along River Tamar

Pollution Summary 2025

Here are all the reported sewage overflow totals for River Tamar in 2025. Sometimes sewage can be being dumped for months at a time.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
South West Water	River Tamar	METHERELL WWTW	137	2,390	96.65
South West Water	River Tamar	ERNESETTLE SEWAGE TREATMENT WORKS	161	1,975	91.8
South West Water	River Tamar	MILTON ABBOT WWTW	83	1,455	100
South West Water	River Tamar	ST LEONARDS WWTW	113	1,421	100
South West Water	River Tamar	GUNNISLAKE WWTW	166	1,396	100
South West Water	River Tamar	ST DOMINICK PUMPING STATION	72	1,066	100
South West Water	River Tamar	HAREWOOD ROAD CSO	164	1,029	99.9
South West Water	River Tamar	PLAYING FIELDS PUMPING STATION	73	660	100
South West Water	River Tamar	LATCHLEY STW	42	604	98.9
South West Water	River Tamar	BRIDGERULE WWTW	34	436	100
South West Water	River Tamar	DOCKYARD NO.3 PUMPING STATION	43	337	100
South West Water	River Tamar	CHILSWORTHY WWTW	41	250	95.7
South West Water	River Tamar	PS-DY2, NORTH YARD, DEVONPORT	28	201	100
South West Water	River Tamar	ST GILES ON THE HEATH	22	159	95.6
South West Water	River Tamar	CARGREEN PSCSO/EO	49	130	100
South West Water	River Tamar	MUTTON COVE PUMPING STATION	41	84	100
South West Water	River Tamar	THANCKES PARK PUMPING STATION	32	43	76
South West Water	River Tamar	ROWING CLUB NO2 CSO	30	32	100
South West Water	River Tamar	LAWHITTON WWTW CSO	12	25	100
South West Water	River Tamar	EDINBURGH STREET (PS5) PS	18	23	100
South West Water	River Tamar	SALTASH ROAD SPS PLYMOUTH	23	21	100
South West Water	River Tamar	LOWER KELLY PSCSO/EO	8	18	100
South West Water	River Tamar	THE QUAY COMBINED SEWER OVERFLOW	19	7	100
South West Water	River Tamar	CORNWALL BEACH (PS3)	2	7	100
South West Water	River Tamar	BRUNEL BRIDGE CSO	29	6	94.8
South West Water	River Tamar	KINTERBURY CREEK RIVERSIDE PS	6	2	100
South West Water	River Tamar	ROWING CLUB NO1 CSO	8	1	100
South West Water	River Tamar	VICARGE GARDENS CSO MILTON ABBOT	4	0	100
South West Water	River Tamar	DOCKYARD NO.1	0	0	87.1
South West Water	River Tamar	GUNNISLAKE NO.1 CSO	0	0	98.6
South West Water	River Tamar	KINGSWOOD ROAD PUMPING STATION	0	0	100
South West Water	River Tamar	BRIDGERULE PSCSO/EO	0	0	100

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.

Analysing sewage pollution by the Water Industry

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