Hinton Blewett Wrc

Storm overflow run by Wessex Water, discharging into The Cam Brook.

Inlet storm overflow at sewage treatment works North East Somerset and Hanham constituency
Right now
Not discharging
Last discharge ended on (2 hours ago).
Times are UK time. Company feed updated just now

"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
8spills
11 h discharging on 8 days · counted by us, not yet official
2025 official
43spills
114 h · −4% on 2024
Rank in Wessex Water
#173
of 1,285 overflows by 2025 spills (1 = most)
Monitor in 2025
100% working
Long-term average 38.3 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 and the live feed. The official figure is published next spring.

2021
26 spills · 56 h
2022
27 spills · 41 hmonitor 99.7%
2023
48 spills · 126 hmonitor 100%
2024
45 spills · 175 hmonitor 99.7%
2025
43 spills · 114 hmonitor 100%
2026so far
8 spills · 11 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
2019
Water body
Cam Bk - source to conf Wellow Bk

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

432 discharge periods since 13 Jan 2020. 431 of them come from Wessex Water's own event-duration-monitoring records (published on Stream, Jan 2020 – Aug 2026); the live feed adds anything after that. The official annual count is the figure to quote.

Show 30 earlier (of 432)
StartedEndedDischarge time
1 h 6 min
6 h 28 min
3 h 2 min
6 h 6 min
1 h 0 min
4 min
40 min
3 h 36 min
58 min
20 min
14 min
30 min
38 min
4 h 38 min
2 h 32 min
15 h 44 min
1 h 48 min
38 min
1 h 58 min
40 min
50 min
32 min
12 min
26 min
50 min
44 min
18 min
12 min
28 min
30 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 793 raw blocks were merged into 432 continuous discharge periods (gaps under 15 min joined).

What the feed showed

FloodRadar's own record of every change of state Wessex Water's live feed has shown for this overflow, kept since : 3 states. The feed publishes its status now and its latest discharge, nothing older; the discharges above are read from this. It is here so the figures can be checked.

Show the last 3 states
SeenStatusSinceLatest discharge
Not discharging →
Discharging → no end yet
Not discharging →

Rain nearby last 30 days

Nearest live rain gauge: Rainfall gauge nr Litton, 3.7 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
Chew Stoke (Chew Stoke Brook) · 6.1 km
Nearest rain gauge
Council area
Bath and North East Somerset
Wessex Water's own name for it
Hinton Blewett Inlet
Site reference
WXW00546 · permit 010299
Coordinates
51.30770, -2.58399

Tell me when this overflow discharges

One message when the company's monitor reports a new discharge here. At most one every 6 hours.

Setting this alert needs JavaScript. The alerts you already have are on your alerts page.

The alert repeats the monitor's status: whether the overflow is discharging, not how much or why. It can only tell you about a discharge that starts after you turn it on.

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 North East Somerset and Hanham 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.

Live status: © Wessex Water storm overflow activity data, licensed under CC BY 4.0. 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. Discharges marked "via Top of the Poops", come from Top of the Poops' record of the same company feed, used under CC BY-SA 4.0: the feed's own start and end times as its pages print them, not their derived hours. 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.