Romsey and Southampton North was polluted by sewage 699 times in 2023
lasting 11,946 hours - that's 1.38 years!
- but monitoring was disabled in some locations, so could be more

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for Romsey and Southampton North in 2023
15 Sites polluted by Southern Water
699 sewage dumps
11,946 h duration
That's 1.38 years! On average 1.9 times a day
Change Over Time
Take Action
Your local MP is Caroline Nokes (Conservative) - Find out more about their interests, donors, and voting at They Work For You

Pollution Summary 2023

Here are all the reported sewage overflow totals for Romsey and Southampton North in 2023. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency 1 of the total 18 CSO locations had reporting enabled for less than half the year, of which 1 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Southern Water River Test KINGS SOMBORNE WWTW 239 4,995 95.55
Southern Water River Blackwater WEST WELLOW WWTW 194 4,160 99.9
Southern Water River Test ROMSEY WWTW 61 1,015 100
Southern Water River Blackwater WELLOW MILL WPS 76 913 100
Southern Water River Test CHILBOLTON WWTW 32 507 99.5
Southern Water Marshcourt River STOCKBRIDGE WWTW 22 156 99.6
Southern Water River Itchen SIRDAR ROAD SOUTHAMPTON CSO 36 95 99.9
Southern Water Unnamed Of River Test RINGWOOD DRIVE NORTH BADDESLEY CEO 16 60 99.9
Southern Water Tadburn Lake THE HUNDRED ROMSEY CSO 4 17 91.8
Southern Water River Itchen GREEN LANE CHILWORTH CEO 5 10 99.8
Southern Water River Test TRAFALGAR WAY STOCKBRIDGE CEO 6 8 57.7
Southern Water Saline Estuary WESSEX LANE SOUTHAMPTON OUTSIDE 11 4 4 94
Southern Water Saline Estuary WESSEX LANE SOUTHAMPTON OUTSIDE 15 2 0 75.6
Southern Water River Test HOUGHTON ROAD STOCKBRIDGE CEO 1 0 100
Southern Water Saline Estuary WESSEX LANE SOUTHAMPTON 1 0 73.6
Southern Water River Test MEMORIAL PARK ROMSEY CEO 0 0 0
Southern Water Tadburn Lake BOTLEY ROAD WPS (NORTH BADDESLEY) 0 0 100
Southern Water Tadburn Lake EIGHT ACRES ROMSEY CSO 0 0 88.2

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.