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Dartington Sch Two

SBB00349
Overflow on the network feeding Totnes STW · Combined sewer overflow
Designated bathing water · Steamer Quay, Dart EstuaryShellfish water · Dart
Showing history for 2025 · records go back to 2020
Not spilling

The monitor is reporting and shows no discharge.

Last spill ended
13 Mar, 02:16
Counted spills, 2025
45
38 discharge events
Hours spilled, 2025
506
Is the feed working?
Working
Last checked 8 min ago · we poll SWW hourly
48h agonow
48/48 hourly readings received
Dry spills, 2025
4
4 in 2025 · 49 since 2020
How a dry spill is decided →
Spilled before its STW, 2025
9
9 in 2025 · 252 since 2020
What this means →
Why this one spills

This looks like a fault, not a storm.

This overflow has discharged in dry weather 49 times since 2020 — spills with no rainfall to excuse them. Its treatment works is not itself over capacity, so a catchment-wide explanation does not hold. Applied to this record, the two-stage lawfulness test is hard to pass: a recurring dry-weather discharge is not an exceptional circumstance, and where the remedy is routine maintenance the disproportionate-cost exception is hard to run.

How this verdict is reached →

Can its works cope?

Full capacity view →

This overflow drains to Totnes STW, serving about 10,832 people on a 3,967 m³/day permit.

38%
of permitted flow
Within capacity

The works has headroom — so spills here point to another problem, often on that branch of the network (a blockage, a failed pump or infiltration).

On our estimate the works has spare capacity for about ~17,500 more people before it reaches its permitted flow.

The same works has emergency overflows too

All emergency overflows →

2 pumping-station emergency overflows feed Totnes STW works — raw-sewage relief outlets that should fire only when a pump fails. They are not in this page's feed; between them they have discharged about 0.05 recorded hours.

Northern Villages pumping station, Totnes0.04h totalworst year 0.04h
St Peters Quay pumping station, Totnes0.01h totalworst year 0.01h

Its permit

What the environmental permit sets for this overflow — and where the public record is silent, which is itself the finding.

Pass-forward flow
3,967 m³/day (works DWF)
Spill frequency limit
None set
Monitoring tier
Not published
Assessment trigger
Crossed — over 10 spills/year

Is anyone acting on this?

Flagged problems
High spill frequency745 discharge events since 2020Very long spills506 hours in the last full yearDry spilling49 dry spills since 2020Spills before its works252 times since 2020
Measures on record
  • Improvement of assets discharging into designated bathing water
    Improve water company intermittent discharges
    Improvementdue 2028
Verdict
Improvement under way

A physical improvement is committed against this overflow.

What you can do about this one

OPEN NOW

Ask for the data

Under the Environmental Information Regulations, Dartington Sch Two's telemetry, the works' flow-to-full-treatment setting, and any spill investigations are emissions information — they cannot be withheld on commercial-confidentiality grounds. A written request is the fastest lever.

BY 30 APR 2027

Get it into the next programme

Investigations that will shape the 2030–35 environment programme must complete by this date. Putting this overflow on the record now — to South West Water and the Environment Agency — is what gets it considered.

BY 1 NOV 2027

Put it in the drainage plan

South West Water's draft Drainage & Wastewater Management Plan goes to a twelve-week consultation. A named overflow with evidence behind it is far harder to leave out.

The record since 2020

49 dry spills and 252 pre-STW spills since 2020. Pick a year to see its events below.

Count by

2025: 45 spills · 38 discharge events

Counted spills — the EA's 12/24-hour block method, the basis of the 10-a-year cap. Published annual return where available, computed the same way for the current year. Two ways to count →

Spills by month, 2025

Dry Wet weather
10Jan
2Feb
4Mar
2Apr
May
2Jun
Jul
1Aug
2Sep
Oct
1Nov
14Dec

Every spill in 2025, most recent first

Each event checked against the nearest rain gauge and against the treatment works’ own overflow. Open any row for its evidence dossier.

22 Dec, 03:16
16m
9.5 mm
Wet weather
Also spilling
→
22 Dec, 01:56
28m
9.5 mm
Wet weather
Also spilling
→
22 Dec, 00:59
26m
9.5 mm
Wet weather
Also spilling
→
22 Dec, 00:24
28m
9.5 mm
Wet weather
Also spilling
→
18 Dec, 10:51
9h 27m
38.8 mm
Wet weather
Also spilling
→
17 Dec, 20:30
6h 15m
38.8 mm
Wet weather
Also spilling
→
15 Dec, 21:49
4h 40m
35.7 mm
Wet weather
Also spilling
→
15 Dec, 12:52
37m
35.7 mm
Wet weather
Also spilling
→
8 Dec, 21:33
38h 32m
52.3 mm
Wet weather
Also spilling
→
7 Dec, 09:48
5h 12m
14.6 mm
Wet weather
Also spilling
→
5 Dec, 20:42
51m
37.0 mm
Wet weather
Also spilling
→
5 Dec, 14:40
4h 18m
37.0 mm
Wet weather
Also spilling
→
5 Dec, 13:42
54m
37.0 mm
Wet weather
Also spilling
→
1 Dec, 14:03
6h 40m
32.7 mm
Wet weather
Also spilling
→
11 Nov, 20:45
18m
31.9 mm
Wet weather
Also spilling
→
14 Sept, 12:05
15m
22.8 mm
Wet weather
Also spilling
→
3 Sept, 00:43
39m
29.1 mm
Wet weather
Also spilling
→
28 Aug, 23:58
1h 9m
28.0 mm
Wet weather
Not spilling — flagged before STW
→
13 Jun, 19:20
19m
21.5 mm
Wet weather
Not spilling — flagged before STW
→
12 Jun, 09:11
3h 49m
30.7 mm
Wet weather
Not spilling — flagged before STW
→
18 Apr, 20:31
6h 59m
35.3 mm
Wet weather
Also spilling
→
16 Apr, 00:58
3h 4m
57.8 mm
Wet weather
Also spilling
→
3 Mar, 09:46
1h 4m
0.1 mm
Dry spill
Not spilling — flagged before STW
→
3 Mar, 08:08
35m
0.1 mm
Dry spill
Not spilling — flagged before STW
→
3 Mar, 07:28
16m
0.1 mm
Dry spill
Not spilling — flagged before STW
→
2 Mar, 23:36
1h 47m
0.1 mm
Dry spill
Not spilling — flagged before STW
→
23 Feb, 13:11
177h 17m
59.0 mm
Wet weather
Also spilling
→
20 Feb, 10:27
9h 1m
33.3 mm
Wet weather
Also spilling
→
26 Jan, 08:43
106h 18m
41.6 mm
Wet weather
Also spilling
→
24 Jan, 23:11
38m
47.4 mm
Wet weather
Also spilling
→
24 Jan, 01:14
21h 38m
47.4 mm
Wet weather
Also spilling
→
23 Jan, 11:09
3h 20m
47.4 mm
Wet weather
Not spilling — flagged before STW
→
9 Jan, 10:36
16m
15.2 mm
Wet weather
Also spilling
→
9 Jan, 07:55
48m
15.2 mm
Wet weather
Also spilling
→
8 Jan, 12:45
16h 45m
15.2 mm
Wet weather
Also spilling
→
7 Jan, 19:24
17m
9.9 mm
Wet weather
Also spilling
→
7 Jan, 18:50
29m
9.9 mm
Wet weather
Also spilling
→
4 Jan, 20:41
69h 32m
61.3 mm
Wet weather
Not spilling — flagged before STW
→
17 brief spills under 15 minutes in 2025

Excluded from the counts, classification and flags above — too short to weigh against rainfall, and often an operational blip rather than a genuine discharge. Listed here for completeness. How we know.

18 Dec, 10:34 · 9m10 Dec, 12:20 · 2m31 Aug, 11:56 · 11m31 Aug, 10:59 · 4m3 Mar, 11:32 · 11m3 Mar, 09:02 · 12m3 Mar, 05:58 · 9m3 Mar, 04:23 · 8m3 Mar, 02:49 · 8m22 Feb, 12:59 · 4m30 Jan, 21:02 · 3m30 Jan, 20:49 · 2m25 Jan, 02:21 · 5m25 Jan, 00:46 · 8m9 Jan, 09:20 · 7m7 Jan, 22:09 · 9m7 Jan, 20:47 · 12m