Dunnswood WwTW - Inlet CSO

Storm overflow run by Scottish Water, discharging into Red Burn.

CSO
Right now
Not discharging
Last discharge ended 10:15 on 30 Sep 2026 (1 day ago).
Times are UK time · company feed updated 14 min ago

"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
6overflow events
63 h discharging on 6 days · live feed since 28 Feb, not yet official
2025 official
64overflow events
294 h · +3% on 2024
Rank in Scottish Water
—
No ranking for this overflow.
Monitor in 2025
94.8% working
Share of the year the monitor reported

Year by year

Scottish Water's overflow data reported to SEPA (number of overflow events; Scottish Water does not use the 12/24-hour count). 2026 is our own running count, the same way, from the live feed since 28 February (when we began keeping every discharge it reports) — so it can only be lower than the full year. The official figure is published next spring.

2021
92 events · 587 h
2022
85 events · 523 h
2023
162 events · 1,446 hmonitor 100%
2024
62 events · 397 hmonitor 88.8%
2025
64 events · 294 hmonitor 94.8%
2026since 28 Feb
6 events · 63 h

"No data" means the monitor was not working or not required to report that year — not zero. Scottish Water counts each overflow event; England and Wales count 12/24-hour "spills", so these numbers are not directly comparable with English or Welsh overflows.

Downstream of this overflow

The next gauge downstream that the river map places is Bonnybridge (Bonny Water), 7.3 km along the river.

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.

Discharges we have recorded

67 discharge periods since 2 Jan 2024. 62 of them come from Scottish Water's own event-duration-monitoring records (published by the company, Jan 2024 – Dec 2024); the live feed adds anything after that. The official annual count is the figure to quote.

Show 30 earlier (of 67)
Started (UK time)EndedDischarge time
20 Oct 2024, 11:3014:453 h 15 min
18 Oct 2024, 22:0023:451 h 45 min
16 Oct 2024, 07:3012:305 h 0 min
12 Oct 2024, 16:0016:3030 min
12 Oct 2024, 13:0015:002 h 0 min
10 Sep 2024, 05:4510:455 h 0 min
2 Sep 2024, 12:0001:1513 h 15 min
1 Sep 2024, 22:1522:4530 min
27 Aug 2024, 07:1521:1514 h 0 min
25 Aug 2024, 14:3002:0011 h 30 min
23 Aug 2024, 23:3000:301 h 0 min
23 Aug 2024, 07:1511:454 h 30 min
21 Aug 2024, 20:3004:007 h 30 min
20 Aug 2024, 23:3000:1545 min
20 Aug 2024, 17:4521:454 h 0 min
20 Aug 2024, 16:3017:1545 min
19 Aug 2024, 23:1504:455 h 30 min
15 Aug 2024, 08:3019:0010 h 30 min
12 Aug 2024, 09:4510:451 h 0 min
8 Aug 2024, 19:1521:001 h 45 min
5 Aug 2024, 16:4518:301 h 45 min
5 Aug 2024, 03:4505:001 h 15 min
5 Aug 2024, 01:4502:3045 min
14 Jun 2024, 17:4519:452 h 0 min
28 May 2024, 17:4521:303 h 45 min
26 May 2024, 17:3004:1510 h 45 min
26 May 2024, 09:4516:457 h 0 min
22 May 2024, 17:0003:0010 h 0 min
14 May 2024, 12:1514:001 h 45 min
15 Apr 2024, 09:0010:451 h 45 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 73 raw blocks were merged into 67 continuous discharge periods (gaps under 15 min joined).

Rain nearby last 30 days

Nearest live rain gauge: Dunnswood STW (Cumbernauld), 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
Bonnybridge (Bonny Water) · 5.4 km
Nearest rain gauge
Site reference
CSO001418
Coordinates
55.97165, -3.95412

Concerned about this overflow?

Report pollution you can see or smell to the regulator straight away; the company handles complaints about the overflow itself.

Live status: © Scottish Water, near-real-time Overflow Map data, open licence for reuse. EDM monitors indicate overflows; they do not confirm them, and this is not advice on water quality. Spill-event history and annual figures: Scottish Water overflow event data, Open Government Licence. Times are shown in UK local time. FloodRadar republishes the monitor's status; it does not measure discharges itself.