Storm overflow run by Wessex Water.

Storm overflow on the sewer network South West Wiltshire constituency
Right now
No live feed
Wessex Water does not publish a live status for this overflow; only the annual figures below are available.

"Not discharging" means the company's monitor reports no discharge right now — not that the water is clean. The feed publishes status only; no discharge volume is measured.

2026 so far
33spills
39 h discharging on 35 days · counted by us, not yet official
2025 official
61spills
67 h · +9% on 2024
Rank in Wessex Water
#60
of 1,285 overflows by 2025 spills (1 = most)
Monitor in 2025
100% working
Long-term average 53.0 spills a year

Year by year

The Environment Agency's official annual returns, counted the EA's way (12/24-hour spills). 2026 is our own running count, the same way, from Wessex Water's monitor log. The official figure is published next spring.

2024
56 spills · 88 hmonitor 71.7%
2025
61 spills · 67 hmonitor 100%
2026so far
33 spills · 39 h

A spill is the EA's 12/24-hour count: the first 12 hours of a discharge count as one, each further 24 hours with discharge as one more. "Monitor" is the share of that year the monitor was working, so a 0 beside a working monitor is a real zero; "no data" means the monitor produced no usable data that year — not zero. Years before 2024 are matched to this site by name and location, because the EA's site IDs changed that year; a monitor figure beside one of them means the outlet's permit confirms the match.

What the 2025 return says

From Wessex Water's annual return to the Environment Agency for this overflow.

High-spill review
Not Applicable - Ongoing investigation
Long-term review
Performance - SW Infiltration
Investigation
No investigation activity in reporting period
Improvement work
No improvement action in reporting period
Monitored since
2022
Water body
Wylye (Headwaters)

This overflow spilled often enough to trigger the EA's high-spill review; the review line is the company's own stated reason.

Discharges we have recorded

58 discharge periods since 8 Jan 2026. 58 of them come from Wessex Water's own event-duration-monitoring records (published on Stream, Jan 2026 – Aug 2026); this overflow has no live feed, so nothing after that log is held. The official annual count is the figure to quote.

Show 30 earlier (of 58)
StartedEndedDischarge time
16 min
8 min
34 min
1 h 2 min
10 min
24 min
4 min
38 min
14 min
42 min
30 min
12 min
22 min
36 min
1 h 18 min
42 min
2 h 26 min
4 min
16 min
22 min
26 min
10 min
54 min
1 h 34 min
16 min
10 min
2 h 52 min
28 min
1 h 4 min
10 min

The year figures above use the EA's 12/24-hour counting method, so they are comparable with the official figures; the monitor log's 73 raw blocks were merged into 58 continuous discharge periods (gaps under 15 min joined).

Rain nearby last 30 days

Nearest live rain gauge: Rainfall gauge nr North Brewham, 8.5 km away. Brown shading = when this overflow was discharging; ▼ = a discharge start.

Overflow shading is a timing match, not proof of cause — heavy rain and spills share a trigger. Times come from the water company’s event-duration monitor (site status only; no discharge volume is published).

Where it is

Nearest river gauge
Brixton Deverill (River Wylye) · 4.7 km
Nearest rain gauge
Council area
Wiltshire
Wessex Water's own name for it
Maiden Bradley Drive To STW
Site reference
WXW00777 · permit Unpermitted
Coordinates
51.14575, -2.27216

Concerned about this overflow?

Report pollution you can see or smell to the regulator straight away; the company handles complaints about the overflow itself.

Write to the MP

The Environment Agency's return places this overflow in the South West Wiltshire constituency. An MP can ask the company and the regulator questions on a constituent's behalf. These words carry the official figures; change them as you like.

The link opens Parliament's own "Find your MP", which gives the MP's name and how to write to them. FloodRadar sends nothing and keeps nothing you write. Check the constituency against your own address: an MP acts only for people who live in it.

Annual spill figures: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence (OGL) v3.0. Storm-overflow spill events: © the respective water company, published on Stream (data.streamwaterdata.co.uk) under CC BY 4.0. Times are shown in UK local time. FloodRadar republishes the monitor's status and the EA's figures; it does not measure discharges itself. Constituency and council area from the EA's return: contains OS data © Crown copyright and database right 2026.