Motherwell, Opp 92 Wilson Street CSO

Storm overflow run by Scottish Water, discharging into South Calder Water.

CSO
Right now
Not discharging
Last discharge ended 14:25 on 23 Jan 2025 (616 days ago).
Times are UK time · company feed updated 13 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
0overflow events
0 h discharging · live feed since 28 Feb, not yet official
2025 official
1overflow event
1.0 h
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 published data for monitored overflows (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.

2022
no data
2023
no data
2024
no data
2025
1 event · 1.0 hmonitor 100%
2026since 28 Feb
0 events · 0 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 South Calder Water. They share the sewer and the storm, so one outlet's figures are only part of what reaches the water.

232m Motherwell, Opp Council Depot/Albert StCSO001330 —no 2025 figure
282m Calder Pavilion CSO 1950 Ns758575CSO006634 —no 2025 figure

This overflow: 1 spill in 2025. Distances are between the published outlet points.

Downstream of this overflow

The next gauge downstream that the river map places is Blairston (Clyde), 9.5 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

1 discharge period since 23 Jan 2025. 1 of them come from Scottish Water's own event-duration-monitoring records (published by the company, Jan 2025 – Jan 2025); the live feed adds anything after that. The official annual count is the figure to quote.

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 2 raw blocks were merged into 1 continuous discharge periods (gaps under 15 min joined).

Rain nearby last 30 days

Nearest live rain gauge: Daldowie STW, 10.0 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
Fairholm (Avon Water) · 5.7 km
Nearest rain gauge
Daldowie STW · 10.0 km
Site reference
CSO001347
Coordinates
55.79486, -3.97780

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.