River TruthRiver Truth
← River Truth

Anglian Water · overflow AWS00141

No active event

Old River Ancholme

Recorded by the operator as THE BLACK DYKE NT. The outfall is 21 m from the Old River Ancholme on the Ordnance Survey river network, which is the river this page groups it under.

The monitor for overflow AWS00141 (operator listed as Anglian Water) reports no current spill. The data records 50 spill events totalling 0 min in the last 30 days.

📍 53.55581°, -0.50129°

Spill record· since 6 May 2026

64

spill events

0h

cumulative discharge

15 min

longest single event

2026-05-21

first event on record

In the last 30 days this overflow recorded 0h of discharge. Across Anglian Water's 1,438 monitored overflows the median was 0h. This site is in the top 28% by 30-day spill duration.

Recent spill events· last 30 days

Rainfall comes from the nearest Environment Agency rain gauge within 10 km, using 15-minute readings rolled into hourly totals. Where a gauge is further away, or too many readings are missing, we say so rather than guess. Rain figures do not show whether a discharge was permitted; that is a matter for the regulator. How we keep the record.

The operator's own annual returns· 2024 to 2025

What the water company itself reported to the Environment Agency’s annual returns for this overflow, year by year. Hours are the total reported discharge duration; monitor working is the share of the year the event monitor was operating (a figure of 0% may mean no usable monitoring data rather than no spills). These figures are the operator's own reporting, not our measurement, and our live record above begins on 6 May 2026.

YearSpills countedHoursMonitor workingMatched by
2024932h100%hub id
202515108h100%hub id

2024, the operator's stated reason: "High spill threshold not met"

2025, the operator's stated reason: "High spill threshold not met"

Source: Environment Agency, Event Duration Monitoring storm overflow annual returns, all years. Matched to this overflow by hub id.

How we keep the record.

Rain at the nearest gauge· 2.4 km away

The nearest Environment Agency rain gauge, Cadney, is 2.4 km from this overflow. It recorded 1.2 mm in the last 48 hours.

Day (UTC)Rain
18 Oct 20260.0 mm
17 Oct 20260.0 mm
16 Oct 20264.6 mm
15 Oct 20260.6 mm
14 Oct 20260.0 mm
13 Oct 20262.2 mm
12 Oct 20260.2 mm

Rainfall comes from 15-minute Environment Agency readings rolled into hourly and daily totals; the 48-hour figure rests on 184 of 192 possible readings. The gauge is 2.4 km from this overflow, so it may not match the rain at the site itself, and the latest day may be incomplete. Rain figures do not show whether a discharge was permitted; that is a matter for the regulator. How we keep the record.

Nearby water quality· 6 sampling points within 5 km

  • AN-DSBRIGG · FRESHWATER - RIVERS

    D/S BRIGG STW

    361 m away · last tested 3 weeks ago

    • ✓pH7.84 PHUNITS
    • ✓Water temperature17.5 CEL

  • AN-RSN1724 · FRESHWATER - RIVERS

    RSN1724 SCAWBY BROOK AT ANCHOLME LEISURE CENTRE

    909 m away

    No swimmer-relevant measurements available.

  • AN-KETT1 · FRESHWATER - RIVERS

    KETTLEBY BECK POOL END

    2.1 km away · last tested 11 days ago

    • ✓pH7.3 PHUNITS
    • ✓Water temperature13.9 CEL

  • AN-CTCHWTRD · FRESHWATER - RIVERS

    HIBALDSTOW AREA CATCHMENT TRIB OF ANCHOLME

    4.2 km away · last tested 2 weeks ago

    • ✓pH8.1 PHUNITS
    • ✓Water temperature13 CEL

  • AN-ANCN2 · FRESHWATER - RIVERS

    NEW R.ANCHOLME WORLABY BOTTOM

    4.5 km away

    No swimmer-relevant measurements available.

  • AN-ANCOB · FRESHWATER - RIVERS

    OLD R.ANCHOLME WORLABY

    4.5 km away · last tested 10 weeks ago

    • ✓pH7.25 PHUNITS
    • ✓Water temperature16.9 CEL

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.

Open Anglian Water complaints formEmail press office instead
Preview the letter
Subject: Storm overflow AWS00141 on the THE BLACK DYKE  NT: request for information

Dear Anglian Water,

I am writing about storm overflow AWS00141 on the THE BLACK DYKE  NT.

Environment Agency storm overflow monitoring data for overflow AWS00141 on the THE BLACK DYKE  NT (operator listed as Anglian Water) records at least 50 spill events starting between 18 September 2026 and 18 October 2026; the 47 with a published end time total 0 min. The most recent recorded event started on 9 October 2026 at 13:25 UTC.

As of 18 October 2026 at 06:54 UTC, the monitor does not report the overflow as spilling.

Further details from the public record:
- On the Old River Ancholme, per the OS Open Rivers network (Ordnance Survey, Open Government Licence)
- Location: 53.55581, -0.50129
- Sources: Environment Agency National Storm Overflow Hub and Water Quality Archive (Open Government Licence v3.0), cross-referenced via River Truth (https://rivertruth.co.uk/overflow/429)

These figures are taken from public monitoring data as published and may be revised by the publisher. They are not a finding that any permit condition has been breached.

[Add your personal context here, for example how you use this stretch of water.]

Please could you tell me:
1. Whether the monitoring record summarised above is accurate and complete
2. What caused the recorded spill events
3. What work, if any, is planned at this overflow, and on what timeline
4. What measures are in place to reduce spills from this overflow in future

[Delete if not applicable: I have copied the Environment Agency, Ofwat and my MP into this correspondence.]

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 Brigg and Immingham constituency — currently represented by Martin Vickers (Conservative). Click below to open WriteToThem with the letter copied to your clipboard — paste it into the message box.

Write to Martin Vickers →View MP's contact page →
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 query: storm overflow AWS00141 on the THE BLACK DYKE  NT

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

I am writing as your constituent about public storm overflow monitoring data for our area.

Environment Agency storm overflow monitoring data for overflow AWS00141 on the THE BLACK DYKE  NT (operator listed as Anglian Water) records at least 50 spill events starting between 18 September 2026 and 18 October 2026; the 47 with a published end time total 0 min. The most recent recorded event started on 9 October 2026 at 13:25 UTC.

As of 18 October 2026 at 06:54 UTC, the monitor does not report the overflow as spilling.

Further details from the public record:
- On the Old River Ancholme, per the OS Open Rivers network (Ordnance Survey, Open Government Licence)
- Location: 53.55581, -0.50129
- Sources: Environment Agency National Storm Overflow Hub and Water Quality Archive (Open Government Licence v3.0), cross-referenced via River Truth (https://rivertruth.co.uk/overflow/429)

These figures are taken from public monitoring data as published and may be revised by the publisher. They are not a finding that any permit condition has been breached.

[Add your personal context here, for example how you and your family use this stretch of water.]

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 the monitoring data for this overflow with the Secretary of State for Environment, Food and Rural Affairs, the Environment Agency or Ofwat

Yours sincerely,
[Your name]
[Your address (WriteToThem requires a postal address to verify your constituency)]

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.

📞 0800 80 70 60 (24/7)Report online →
Share to X →