Wethersfield Water Recycling Centre

Storm overflow run by Anglian Water, discharging into River Pant Nt.

Storm tank at sewage treatment works Braintree constituency
Right now
Not discharging
Last discharge ended on (53 days 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
7spills
1.3 h discharging on 8 days · counted by us, not yet official
2025 official
3spills
11 h · −73% on 2024
Rank in Anglian Water
#867
of 1,428 overflows by 2025 spills (1 = most)
Monitor in 2025
100% working
Long-term average 7.0 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 Anglian Water's monitor log and the live feed. The official figure is published next spring.

2021
no data
2022
no data
2023
4 spills · 40 hmonitor 25.2%
2024
11 spills · 57 hmonitor 100%
2025
3 spills · 11 hmonitor 100%
2026so far
7 spills · 1.3 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.

Downstream of this overflow

The next gauge downstream that the river map places is Stisted (River Blackwater), 16.4 km along the river.

Water-sampling points downstream

The nearest Environment Agency sampling points the river map places below Stisted. Points between this overflow and that gauge cannot be put in order with it on the map, so they are not listed.

A sample is dated: it is not the river now, and its results are on its own page. A sample taken after a discharge does not show that the discharge caused what was measured. Samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.

A river gauge measures the level of the river; it does not measure this overflow's discharge, and a spill does not by itself explain a change there. Traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.

Contains OS data © Crown copyright and database rights 2026.

What the 2025 return says

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

High-spill review
High spill threshold not met
Investigation
Env Act (SODRP) investigation ongoing, Bathing Water and/or Shellfish Water investigation ongoing
Improvement work
No improvement action in reporting period
Monitored since
2024
Water body
Pant

"High spill threshold not met" means this overflow did not spill often enough to trigger the EA's formal high-spill review for that year. It is not a statement that the spills were harmless.

Discharges we have recorded

65 discharge periods since 2 Jan 2024. 63 of them come from Anglian Water's own event-duration-monitoring records (published on Stream, Jan 2024 – Feb 2026); the live feed adds anything after that. The official annual count is the figure to quote.

Show 30 earlier (of 65)
StartedEndedDischarge time
0 min
0 min
0 min
0 min
3 min
0 min
1 min
0 min
0 min
0 min
0 min
0 min
0 min
0 min
0 min
0 min
0 min
1 h 14 min
0 min
0 min
0 min
0 min
1 min
0 min
8 min
9 h 44 min
6 min
18 min
10 h 34 min
2 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 344 raw blocks were merged into 65 continuous discharge periods (gaps under 15 min joined).

What the feed showed

FloodRadar's own record of every change of state Anglian Water's live feed has shown for this overflow, kept since : 1 state. 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 1 states
SeenStatusSinceLatest discharge
Not discharging →

Rain nearby last 30 days

Nearest live rain gauge: Rainfall gauge nr Braintree, 0.1 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
Nearest rain gauge
Council area
Braintree District
Anglian Water's own name for it
Wethersfield Sewage Treatment Works
Site reference
AWS01484 · permit AW2NFE00485
Coordinates
51.94761, 0.48031

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 Braintree 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.

Find the MP for Braintree

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: © Anglian 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 "EA start/stop data": Environment Agency Event Duration Monitoring storm overflow start/stop detailed data, © Environment Agency copyright and/or database right 2026, Open Government Licence v3.0; the companies' monitor records as the EA received them, not verified by the EA. 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.