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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 2020 · records go back to 2020
Not spilling

The monitor is reporting and shows no discharge.

Last spill ended
13 Mar, 02:16
Counted spills, 2020
61
74 discharge events
Hours spilled, 2020
628
Is the feed working?
Working
Last checked 12 min ago · we poll SWW hourly
48h agonow
46/48 hourly readings received
Dry spills, 2020
0
None in 2020 · 49 since 2020
How a dry spill is decided →
Spilled before its STW, 2020
19
19 in 2020 · 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 10,392 people on a 3,967 m³/day permit.

37%
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 ~17,900 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

2020: 61 spills · 74 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, 2020

Dry Wet weather
Jan
19Feb
10Mar
Apr
May
Jun
Jul
5Aug
1Sep
4Oct
10Nov
25Dec

Every spill in 2020, 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.

31 Dec, 20:13
31m
4.8 mm
Wet weather
Also spilling
→
28 Dec, 00:24
91h 22m
5.7 mm
Wet weather
Also spilling
→
24 Dec, 23:53
72h 15m
20.8 mm
Wet weather
Also spilling
→
24 Dec, 23:26
26m
20.8 mm
Wet weather
Also spilling
→
24 Dec, 20:04
3h 1m
20.8 mm
Wet weather
Also spilling
→
24 Dec, 19:41
23m
20.8 mm
Wet weather
Also spilling
→
24 Dec, 18:19
1h 20m
20.8 mm
Wet weather
Also spilling
→
24 Dec, 17:30
18m
20.8 mm
Wet weather
Also spilling
→
24 Dec, 17:02
28m
20.8 mm
Wet weather
Also spilling
→
24 Dec, 16:15
44m
20.8 mm
Wet weather
Also spilling
→
24 Dec, 15:07
1h 4m
20.8 mm
Wet weather
Also spilling
→
24 Dec, 14:32
34m
20.8 mm
Wet weather
Also spilling
→
22 Dec, 03:11
59h 21m
15.5 mm
Wet weather
Not spilling — flagged before STW
→
21 Dec, 18:04
9h 7m
16.7 mm
Wet weather
Not spilling — flagged before STW
→
19 Dec, 08:14
57h 35m
37.4 mm
Wet weather
Not spilling — flagged before STW
→
17 Dec, 20:16
35h 58m
27.1 mm
Wet weather
Also spilling
→
16 Dec, 23:36
55m
14.2 mm
Wet weather
Also spilling
→
16 Dec, 05:38
17h 28m
14.2 mm
Wet weather
Also spilling
→
14 Dec, 15:36
12h 35m
23.2 mm
Wet weather
Also spilling
→
13 Dec, 23:21
13h 6m
23.2 mm
Wet weather
Also spilling
→
13 Dec, 17:22
1h 48m
23.2 mm
Wet weather
Also spilling
→
13 Dec, 14:29
1h 19m
23.2 mm
Wet weather
Also spilling
→
13 Dec, 13:40
31m
23.2 mm
Wet weather
Also spilling
→
9 Dec, 20:51
4h 53m
16.3 mm
Wet weather
Not spilling — flagged before STW
→
4 Dec, 05:28
26m
7.7 mm
Wet weather
Not spilling — flagged before STW
→
28 Nov, 00:39
1h 5m
12.2 mm
Wet weather
Not spilling — flagged before STW
→
15 Nov, 13:59
8h 24m
20.3 mm
Wet weather
Also spilling
→
15 Nov, 11:43
1h 0m
20.3 mm
Wet weather
Also spilling
→
15 Nov, 10:46
28m
20.3 mm
Wet weather
Also spilling
→
15 Nov, 06:33
57m
20.3 mm
Wet weather
Also spilling
→
14 Nov, 11:15
18h 12m
20.3 mm
Wet weather
Also spilling
→
14 Nov, 09:56
36m
20.3 mm
Wet weather
Also spilling
→
3 Nov, 03:04
6h 51m
12.3 mm
Wet weather
Also spilling
→
3 Nov, 00:58
36m
12.3 mm
Wet weather
Also spilling
→
2 Nov, 02:32
3h 37m
16.7 mm
Wet weather
Also spilling
→
31 Oct, 08:56
6h 6m
31.5 mm
Wet weather
Not spilling — flagged before STW
→
31 Oct, 08:09
36m
31.5 mm
Wet weather
Not spilling — flagged before STW
→
30 Oct, 20:06
4h 40m
31.5 mm
Wet weather
Also spilling
→
2 Oct, 12:18
54m
26.8 mm
Wet weather
Also spilling
→
30 Sept, 12:13
20m
19.4 mm
Wet weather
Not spilling — flagged before STW
→
27 Aug, 12:57
54m
33.7 mm
Wet weather
Also spilling
→
19 Aug, 08:22
16m
37.7 mm
Wet weather
Also spilling
→
19 Aug, 07:00
17m
37.7 mm
Wet weather
Also spilling
→
18 Aug, 09:28
16m
37.7 mm
Wet weather
Not spilling — flagged before STW
→
13 Aug, 16:41
21m
47.8 mm
Wet weather
Not spilling — flagged before STW
→
15 Mar, 11:13
26m
5.1 mm
Wet weather
Also spilling
→
15 Mar, 10:17
53m
5.1 mm
Wet weather
Also spilling
→
13 Mar, 19:34
2h 9m
16.2 mm
Wet weather
Also spilling
→
11 Mar, 21:48
16m
4.5 mm
Wet weather
Also spilling
→
9 Mar, 16:49
52m
10.1 mm
Wet weather
Also spilling
→
8 Mar, 09:17
26m
21.9 mm
Wet weather
Also spilling
→
8 Mar, 00:54
1h 54m
21.9 mm
Wet weather
Also spilling
→
5 Mar, 05:39
8h 7m
20.9 mm
Wet weather
Also spilling
→
4 Mar, 11:35
19m
20.9 mm
Wet weather
Also spilling
→
1 Mar, 20:07
15m
9.5 mm
Wet weather
Not spilling — flagged before STW
→
29 Feb, 00:55
13h 37m
37.8 mm
Wet weather
Not spilling — flagged before STW
→
28 Feb, 08:22
6h 39m
37.8 mm
Wet weather
Also spilling
→
27 Feb, 01:32
3h 31m
15.1 mm
Wet weather
Also spilling
→
24 Feb, 11:31
1h 24m
9.0 mm
Wet weather
Also spilling
→
21 Feb, 09:57
15m
7.2 mm
Wet weather
Also spilling
→
21 Feb, 09:15
38m
7.2 mm
Wet weather
Also spilling
→
21 Feb, 08:45
17m
7.2 mm
Wet weather
Also spilling
→
21 Feb, 07:51
28m
7.2 mm
Wet weather
Also spilling
→
20 Feb, 07:17
18h 28m
13.2 mm
Wet weather
Also spilling
→
20 Feb, 06:15
32m
13.2 mm
Wet weather
Also spilling
→
20 Feb, 03:03
1h 28m
13.2 mm
Wet weather
Also spilling
→
19 Feb, 21:57
34m
13.2 mm
Wet weather
Not spilling — flagged before STW
→
19 Feb, 15:51
1h 24m
13.2 mm
Wet weather
Not spilling — flagged before STW
→
15 Feb, 10:16
100h 49m
77.7 mm
Wet weather
Not spilling — flagged before STW
→
14 Feb, 20:29
10h 34m
35.4 mm
Wet weather
Also spilling
→
14 Feb, 20:00
22m
35.4 mm
Wet weather
Also spilling
→
13 Feb, 09:05
2h 32m
27.6 mm
Wet weather
Not spilling — flagged before STW
→
13 Feb, 08:29
15m
27.6 mm
Wet weather
Not spilling — flagged before STW
→
13 Feb, 01:56
4h 13m
27.6 mm
Wet weather
Not spilling — flagged before STW
→
29 brief spills under 15 minutes in 2020

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.

28 Dec, 00:14 · 10m28 Dec, 00:08 · 5m24 Dec, 23:20 · 4m24 Dec, 23:06 · 14m24 Dec, 18:12 · 7m24 Dec, 18:08 · 3m24 Dec, 18:05 · 1m24 Dec, 17:50 · 13m24 Dec, 16:12 · 3m21 Dec, 17:51 · 12m13 Dec, 15:58 · 8m15 Nov, 12:48 · 12m3 Nov, 09:59 · 1m3 Nov, 01:53 · 10m2 Nov, 10:15 · 14m2 Nov, 01:39 · 12m2 Nov, 00:53 · 9m2 Oct, 16:26 · 7m24 Sept, 01:17 · 8m25 Aug, 02:47 · 4m19 Aug, 08:11 · 7m19 Aug, 07:43 · 12m14 Aug, 00:15 · 6m18 Jun, 21:23 · 9m1 Mar, 18:01 · 3m21 Feb, 10:39 · 13m19 Feb, 18:51 · 11m19 Feb, 18:40 · 4m19 Feb, 18:13 · 4m