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Anglian Water · overflow AWS00633

No active event

River Colne

Anglian Water reports no current spill. In the last 30 days the overflow has discharged a cumulative 1.1 h across 10 events.

📍 51.88720°, 0.92370°

Truth Engine flags· 2 open

Spill record· last 12 months

11

spill events

159h

cumulative discharge

4 days

longest single event (all time)

2026-03-26

first event on record

In the last 30 days this overflow recorded 159h of discharge. Across Anglian Water's 1,438 monitored overflows the median was 0h. This site is in the top 2% by 30-day spill duration.

On the River Colne· 41 other overflows

41 other overflows discharge into the River Colne. Combined recorded discharge in the last 30 days: 935h. Operated by 3 different water companies.

Recent spill events· last 30 days

Nearby water quality· 6 sampling points within 5 km

  • AN-TG215 · FRESHWATER - RIVERS

    PORTERS BK.HARWICH RD.COLCHESTER

    1.1 km away

    No swimmer-relevant measurements available.

  • AN-TG2230 · FRESHWATER - RIVERS

    SALARY BK.CROCKLEFORD BRIDGE

    2.1 km away · last tested 4 weeks ago

    • pH8.06 PHUNITS
    • Water temperature11 CEL
  • AN-CL0180 · FRESHWATER - RIVERS

    R.COLNE SHEEPEN BRIDGE

    3.0 km away · last tested 2 weeks ago

    • Water temperature14.8 CEL
    • pH7.8 PHUNITS
  • AN-TG1010 · FRESHWATER - LAKES/PONDS/RESERVOIRS

    ARDLEIGH RESERVOIR AT DAM

    3.8 km away · last tested 3 weeks ago

    • pH8.32 PHUNITS
  • AN-TG24 · FRESHWATER - RIVERS

    SALARY BK.S TRIB.PLAINS FARM

    4.0 km away

    No swimmer-relevant measurements available.

  • AN-GLEBE009 · FRESHWATER - RIVERS

    OPEN STREAM PUMP HSE QUEENS RD WIVENHOE

    4.3 km away

    No swimmer-relevant measurements available.

Take action

The record above is verifiable from public Environment Agency and water-company data. Three official accountability channels — pre-filled with the evidence on this page.

Are you here right now?

If you can see foam, sewage debris, dead fish, or smell something wrong — submit a citizen report. Confirmed reports are added to the Truth Engine and strengthen the public record on this overflow.

📷 Report what you saw →

1. Complain to Anglian Water

The official complaints route. Most companies require submission through their web form rather than email — open the form, then paste the pre-filled letter.

Preview the letter
Subject: Complaint: storm overflow AWS00633 on the River Colne

Dear Anglian Water,

I am writing to formally raise a concern about storm overflow AWS00633,
which public Environment Agency data shows recording 10 spill events totalling 1.1 h in the last 30 days into the River Colne.

Evidence:
- Last 30 days: 10 spill events totalling 1.1 h
- Cross-referenced flags from independent monitoring: 2 open Truth Engine discrepancies
- Location: 51.88720, 0.92370
- Source: Environment Agency National Storm Overflow Hub, OGL v3, cross-referenced via River Truth (https://rivertruth.co.uk/overflow/152)

[Add your personal context here — e.g. how you use this stretch of water and how this incident affects you.]

Please respond with:
1. The cause of this discharge or monitor outage
2. The action being taken to resolve it
3. The expected timeline for resolution
4. What measures are in place to prevent recurrence

I have copied the Environment Agency, Ofwat, and my MP into this correspondence
where appropriate.

Yours faithfully,
[Your name]
[Your address]
[Your customer reference if you are a Anglian Water customer]

2. Write to the MP for this stretch

This overflow sits in the Colchester constituency — currently represented by Pam Cox (Labour). Click below to open WriteToThem with the letter copied to your clipboard — paste it into the message box.

Or write to your own MP instead

Prefer to write to the MP for where you live? Enter your postcode and we'll redirect WriteToThem accordingly.

Preview the letter
Subject: Constituent concern: Anglian Water sewage discharge — overflow AWS00633

Dear [your MP — WriteToThem will fill this in],

I am writing as your constituent to raise concern about ongoing sewage discharges
from Anglian Water in our area.

A specific recent example is storm overflow AWS00633, which public
Environment Agency data shows recording 10 spill events totalling 1.1 h in the last 30 days into the River Colne.

Evidence on the public record:
- Last 30 days: 10 spill events totalling 1.1 h
- Cross-referenced flags from independent monitoring: 2 open Truth Engine discrepancies
- Location: 51.88720, 0.92370
- Source: Environment Agency National Storm Overflow Hub, OGL v3, cross-referenced via River Truth (https://rivertruth.co.uk/overflow/152)

[Add your personal context here — e.g. how you use this stretch of water and how this incident affects you and your family.]

I would like to ask:
1. Whether you support strengthening the regulatory regime for storm overflows
   and monitor coverage in particular
2. Whether you would raise this specific incident with the Secretary of State
   for Environment, Food and Rural Affairs or with Ofwat
3. What steps Parliament is taking to hold Anglian Water accountable for
   the gap between shareholder distributions and the state of monitoring on
   the ground

Yours sincerely,
[Your name]
[Your address — WriteToThem requires a postal address to verify constituency]

Sources: Environment Agency National Storm Overflow Hub · Environment Agency
WIMS Water Quality Archive · cross-referenced via River Truth (https://rivertruth.co.uk/overflow/152)

MP details are looked up live from the UK Parliament Members API under the Open Parliament Licence v3.0. River Truth makes no claim about this MP's voting or advocacy record on water issues — they are shown solely as the elected representative for this constituency.

3. Report to the Environment Agency

For active pollution incidents — dead fish, foam, sewage on the riverbank — the EA hotline operates 24/7 and triggers a recorded investigation.

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