Sirhowy River polluted by sewage 640 times in 2023 - lasting 2,403 hours

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Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
Totals for Sirhowy River in 2023
13 Sites polluted by Dwr Cymru Welsh Water
640 sewage dumps
2,403 h duration
That's 3.34 months. On average 1.8 times a day

Pollution Summary 2023

Here are all the reported sewage overflow totals for Sirhowy River in 2023. Sometimes sewage can be being dumped for months at a time.

These numbers are very slightly different from the Rivers page. We're working on it.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water Sirhowy River CSO 20 OLD MILL NEWPORT ROAD 141 1,404 99.8
Dwr Cymru Welsh Water Sirhowy River Blackwood Cwmgelli CSO 60 163 85.7
Dwr Cymru Welsh Water Sirhowy River CSO at Tredegar, Vicarage Road Rear of Hill Rest 74 160 99.1
Dwr Cymru Welsh Water Sirhowy River WVTS - Wattsville (Recreation Ground) CSO 55 129 98.6
Dwr Cymru Welsh Water Sirhowy River Blackwood Oakdale Rhiw Hill CSO 72 123 98.1
Dwr Cymru Welsh Water Sirhowy River CSO 19 Gryphonn Concrete Products 80 111 99.9
Dwr Cymru Welsh Water Sirhowy River WVTS-WYLLIE HALT SSO 39 94 98.6
Dwr Cymru Welsh Water Sirhowy River CSO 32084 Scwrfa Road, Tredegar 45 87 100
Dwr Cymru Welsh Water Sirhowy River CSO CWM ROAD ARGOED CAERPHILLY 23 54 99.7
Dwr Cymru Welsh Water Sirhowy River Markham Colliery Gun Club CSO 9 34 100
Dwr Cymru Welsh Water Sirhowy River Morgan St CSO, Tredegar 25 26 96.8
Dwr Cymru Welsh Water Sirhowy River Tredegar Vale Terrace R/O 61 11 8 29.6
Dwr Cymru Welsh Water Sirhowy River Tredegar Ladies Row CSO o/s School Entrance 6 5 97.6

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. This 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.