Mauchline WwTW-Old Storm Tanks 3dwf Ssso

Storm overflow run by Scottish Water, discharging into River Ayr.

SSSO
Right now
Not discharging
Last discharge ended 13:00 on 30 Sep 2026 (2 hours ago).
Times are UK time · company feed updated just now

"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
3overflow events
101 h discharging on 6 days · live feed since 28 Feb, not yet official
2025 official
172overflow events
1,121 h · +67% on 2024
Rank in Scottish Water
—
No ranking for this overflow.
Monitor in 2025
100% 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
93 events · 678 h
2022
97 events · 786 h
2023
139 events · 845 hmonitor 100%
2024
103 events · 438 hmonitor 100%
2025
172 events · 1,121 hmonitor 100%
2026since 28 Feb
3 events · 101 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.

Other outlets here

Scottish Water runs 2 other overflows within 300 m that also discharge into River Ayr. They share the sewer and the storm, so one outlet's figures are only part of what reaches the water.

0m Mauchline WwTW-Treated 1.5dwf SssodischargingCSO007490 —no 2025 figure
73m Mauchline WwTW-New Storm Tanks 6dwf SssoCSO007488 —no 2025 figure

This overflow: 172 spills in 2025. Distances are between the published outlet points.

Discharges we have recorded

278 discharge periods since 1 Jan 2024, 1 still open. 275 of them come from Scottish Water's own event-duration-monitoring records (published by the company, Jan 2024 – Dec 2025); the live feed adds anything after that. The official annual count is the figure to quote.

Show 30 earlier (of 278)
Started (UK time)EndedDischarge time
21 Dec 2025, 21:1523:302 h 15 min
21 Dec 2025, 17:3018:451 h 15 min
19 Dec 2025, 12:0016:002 d 4 h
19 Dec 2025, 08:0011:303 h 30 min
19 Dec 2025, 06:1507:301 h 15 min
18 Dec 2025, 18:4505:4511 h 0 min
18 Dec 2025, 17:0018:151 h 15 min
17 Dec 2025, 15:3010:5319 h 24 min
17 Dec 2025, 06:0014:458 h 45 min
14 Dec 2025, 21:3005:302 d 8 h
14 Dec 2025, 20:0020:4545 min
14 Dec 2025, 17:0517:3024 min
14 Dec 2025, 13:1513:4530 min
14 Dec 2025, 12:0012:4545 min
14 Dec 2025, 10:3011:2455 min
14 Dec 2025, 00:1510:009 h 45 min
13 Dec 2025, 22:0022:3030 min
13 Dec 2025, 18:1520:472 h 33 min
13 Dec 2025, 15:1517:452 h 30 min
11 Dec 2025, 19:4511:0815 h 23 min
11 Dec 2025, 09:0911:342 h 25 min
11 Dec 2025, 08:1508:4530 min
11 Dec 2025, 04:4505:1530 min
10 Dec 2025, 22:1504:005 h 45 min
10 Dec 2025, 16:4518:001 h 15 min
10 Dec 2025, 10:0011:151 h 15 min
10 Dec 2025, 08:4509:3045 min
10 Dec 2025, 05:3007:302 h 0 min
10 Dec 2025, 01:0005:074 h 8 min
9 Dec 2025, 23:3000:371 h 7 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 281 raw blocks were merged into 278 continuous discharge periods (gaps under 15 min joined).

Rain nearby last 30 days

Nearest live rain gauge: Blackdyke Farm, 5.2 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
Catrine (Ayr) · 3.4 km
Nearest rain gauge
Blackdyke Farm · 5.2 km
Site reference
CSO007489
Coordinates
55.49885, -4.38948

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.