58 storm overflows are traced upstream of Irvine Waterside, the Irvine’s lowest gauge on the river map: on the Irvine itself, on its gauged tributaries, and on smaller streams that join above there.
- 0 report discharging now
- 50 not discharging
- 8 offline or silent: 8 monitor offline, 0 status unknown, 0 no live feed
Official figures for 2025, for the overflows traced upstream of Irvine Waterside: 2,356 overflow events over 4,588 hours in total, across the 41 that have a figure. 9 had no data that year; 8 have no 2025 figure. Scottish Water counts overflow events, not the 12/24-hour spills counted in England and Wales, so this total cannot be set beside theirs.
Each overflow is listed in the stretch above the first gauge its water reaches, from the source down, as on the Gauges tab. A stretch of the Irvine includes the smaller streams that join it there. Where a stretch or a tributary has more than 4, the 3 discharging now or nearest its gauge are listed, the rest are counted, and every one is in that gauge’s “Upstream of here” list. Show every overflow in every stretch →
Above Newmilns, the Irvine’s highest gauge3 overflows
Between Newmilns and Glenfield12 overflows
and 9 more: show all 12 overflows on this stretch → All above Glenfield, nearest first →
Between Glenfield and Shewalton17 overflows
and 14 more: show all 17 overflows on this stretch → All above Shewalton, nearest first →
Kilmarnock Water, above Howard Parkjoins the Irvine above Shewalton6 overflows
and 3 more: show all 6 overflows on this stretch → All above Howard Park, nearest first →
Between Shewalton and Irvine Waterside9 overflows
and 6 more: show all 9 overflows on this stretch → All above Irvine Waterside, nearest first →
Annick Water, and the streams that join itjoins the Irvine above Irvine Waterside11 overflows
and 8 more: show all 11 overflows on Annick Water and the streams that join it → All above Dreghorn, nearest first →
Near these gauges, connection not known
Within 3 km of one of the Irvine’s gauges in a straight line, but the river map cannot say whether their water reaches it.
- Irvine Waterside PS CSO 2012 Ns317395 Not discharging
Scottish Water · into River Irvine · 500 m from Irvine Waterside in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: no data - Kilmarnock Kirkstyle School CSO Ns434366 Not discharging
Scottish Water · into River Irvine · 540 m from Glenfield in a straight line · no mapped watercourse close enough to be sure · 2025: 100 overflow events, 81 h - Irvine, Williamfield CSO Ns316399 Not discharging
Scottish Water · into River Irvine · 680 m from Irvine Waterside in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 0 overflow events, 0 h
13 more near these gauges whose connection is not known.
4 other overflows within 3 km of these gauges are placed below the Irvine’s lowest gauge or on another river, so not listed.
A status is the water company’s own monitor: it says whether an overflow is discharging, never how much or why, and a spill does not by itself explain a change in a river level. A status older than two hours is shown as unknown. Annual figures are the official returns: 12/24-hour spills for England and Wales, overflow events for Scotland (Scottish Water counts differently, so the two cannot be compared). “No data” means the monitor produced no usable data that year, not zero. Overflows are placed on OS Open Rivers (edition 2026-04), which leaves out many small channels: an overflow the map cannot place may still drain here. Contains OS data © Crown copyright and database rights 2026. Sewage in Britain’s rivers →
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. Annual figures for Scotland: Scottish Water overflow event data, Open Government Licence.