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River Ouse water levels

Live levels from 18 monitoring stations across East Riding of Yorkshire, East Sussex, North Yorkshire, West Sussex, York, updated every 15 minutes.

18stations
0above typical high
5catchments
⚠️ Several distinct UK rivers share the name “River Ouse” — sections below are grouped by catchment.

Gauges

River Ouse — Ouse

8 stations in this catchment

StationTownLevel nowStatusTrend
ArdinglyArdingly0.08 mASD 1h agoNormal—
Lindfield BridgeLindfield1.21 mASD 1h agoNormal—
Freshfield BridgeScayne's Hill-0.02 mASD 1h agoLow—
GoldbridgeNewick0.30 mASD 1h agoNormal—
Anchor GatesBarcombe6.06 mAOD 1h agoNormal▲
Barcombe GatesBarcombe5.30 mASD 1h agoNormal—
BarcombestructureBarcombe2.57 mAOD 1h agoNormal△
Lewes Corporation YardtidalLewes1.89 mAOD 1h agoNormal▼

River Ouse — Swale, Ure, Nidd and Upper Ouse

5 stations in this catchment

StationTownLevel nowStatusTrend
MonktonBeningbrough0.53 m 1h agoNormal△
SkeltonNether Poppleton1.12 m 1h agoNormal▲
Clifton Ings OutfallClifton Ings Outfall5.59 mAOD 1h agoNormal△
Viking RecorderYork0.58 m 1h agoNormal△
York Foss BarrierYork5.55 mAOD 1h agoNormal△

River Ouse — Wharfe and Lower Ouse

3 stations in this catchment

StationTownLevel nowStatusTrend
Naburn LockstructureNaburn0.88 m 1h agoNormal△
CawoodtidalCawood2.40 mAOD 1h agoNormal▼
Selby WestmilltidalSelby0.93 mAOD 1h agoNormal▼

River Ouse — Don and Rother

1 station in this catchment

StationTownLevel nowStatusTrend
GooletidalGoole-0.81 mAOD 1h ago—▼

River Ouse — Hull and East Riding

1 station in this catchment

StationTownLevel nowStatusTrend
BlacktofttidalBlacktoft-1.01 mAOD 1h ago—▼

Also on the Ouse by the river map, but filed under another river name: GOLDBRIDGE GS and Barcombe USGS.

Stations are listed from source to mouth as the water flows, traced on the river map (OS Open Rivers) and the Environment Agency’s own links between its gauges. A distance “by river” is along the river, and is shown only where the map traces the path.

Contains OS data © Crown copyright and database rights 2026.

Gauged tributaries

Streams and rivers with a gauge whose water joins the Ouse above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.

River Ouse — Ouse

3 gauged tributaries, 5 gauges

Shell Brook name from the river map

Joins the Ouse between Ardingly and Lindfield Bridge, no more than 4.0 km by river above Lindfield Bridge.

ARDINGLY SHELLBROOK GS0.16 m3/s 1h ago—

Its water passes Lindfield Bridge and every gauge below it on the Ouse. It does not pass Ardingly or the gauges above it.

River Uck

Joins the Ouse between Goldbridge and Anchor Gates, no more than 5.4 km by river above Anchor Gates.

Buxted0.10 mASD 1h agoNormal
Uckfield Mill upstream0.25 mASD 1h agoLow
Isfield weirstructure0.18 mASD 1h agoNormal

Its water passes Anchor Gates and every gauge below it on the Ouse. It does not pass Goldbridge or the gauges above it.

Where the Ouse goes

Below Lewes Corporation Yard, its water next reaches Newhaven, 13.1 km by river downstream.

River Ouse — Swale, Ure, Nidd and Upper Ouse, Wharfe and Lower Ouse, Don and Rother and Hull and East Riding

14 gauged tributaries, 303 gauges

Each tributary’s water passes the gauge it joins above and every gauge below it on the Ouse, and none of the gauges above where it joins. For each, the gauge nearest the Ouse is shown; its own page lists the rest.

Where the Ouse goes

No gauge below Blacktoft is known on the river map.

Tributaries and where they join are traced on the river map (OS Open Rivers, edition 2026-04) and the Environment Agency’s links between its gauges. The map holds distances between gauges, not the junctions themselves, so a junction is placed between two gauges, and no further up than the tributary’s own lowest gauge. Contains OS data © Crown copyright and database rights 2026.

River Ouse — Ouse

Streams without a gauge

Named streams on the river map that flow into the Ouse and have no gauge of their own. Each has a page with what is known about it: the next gauge downstream, and any storm overflows or water-sampling points placed on it.

River Ouse — Swale, Ure, Nidd and Upper Ouse, Wharfe and Lower Ouse, Don and Rother and Hull and East Riding

Streams without a gauge

Storm overflows upstream

River Ouse — Ouse

28 storm overflows are traced upstream of Lewes Corporation Yard, the Ouse’s lowest gauge on the river map: on the Ouse itself, on its gauged tributaries, and on smaller streams that join above there.

  • 0 report discharging now
  • 27 not discharging
  • 1 offline or silent: 0 monitor offline, 0 status unknown, 1 no live feed

Official figures for 2025, for the overflows traced upstream of Lewes Corporation Yard: 591 spills over 5,213 hours in total, across all 28.

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 Ouse includes the smaller streams that join it there.

Above Ardingly, the Ouse’s highest gauge3 overflows
  • Staplefield WwTW Not discharging
    Southern Water · into The River Ouse · 6.7 km by river above Ardingly · 2025: 19 spills, 125 h
  • Balcombe Wastewater Treatment Works Not discharging
    Southern Water · into Unnamed Trib Of River Ouse · 2.8 km by river above Ardingly · 2025: 7 spills, 55 h
  • Balcombe Wastewater Treatment Works Not discharging
    Southern Water · into Unnamed Trib Of River Ouse · 2.8 km by river above Ardingly · 2025: 33 spills, 416 h
Between Lindfield Bridge and Freshfield Bridge6 overflows
  • Horsted Keynes WwTW Not discharging
    Southern Water · into Cockhaise Brook · 8.3 km by river above Freshfield Bridge · 2025: 0 spills, 0 h
  • Horsted Keynes WwTW Not discharging
    Southern Water · into Cockhaise Brook · 8.3 km by river above Freshfield Bridge · 2025: 11 spills, 78 h
  • Lewes Road Lindfield Wps Not discharging
    Southern Water · into Scrase Stream · 5.0 km by river above Freshfield Bridge · 2025: 50 spills, 430 h
  • Noahs Ark Lane PS Not discharging
    Southern Water · into Freshwater River · 4.8 km by river above Freshfield Bridge · 2025: 2 spills, 12 h · placed on the river by its position alone
  • Scaynes Hill WwTW Not discharging
    Southern Water · into River Ouse · 940 m by river above Freshfield Bridge · 2025: 0 spills, 0 h
  • Scaynes Hill WwTW Not discharging
    Southern Water · into River Ouse · 940 m by river above Freshfield Bridge · 2025: 32 spills, 291 h
Salfords Stream, above Scrasebridgejoins the Ouse above Freshfield Bridge5 overflows
  • Portsmouth Lane CSO Not discharging
    Southern Water · into Freshwater River · 2.3 km by river above Scrasebridge · 2025: 2 spills, 6.8 h · placed on the river by its position alone
  • Mill Green Road Haywards Not discharging
    Southern Water · into Scrase Bridge Stream · 2.0 km by river above Scrasebridge · 2025: 2 spills, 0.6 h
  • Rear Of 35 Pelham Road Not discharging
    Southern Water · into Freshwater River · 780 m by river above Scrasebridge · 2025: 50 spills, 287 h · placed on the river by its position alone
  • Penn Cresent Haywards Heath Not discharging
    Southern Water · into Tributary Of The Scrase Stream · 610 m by river above Scrasebridge · 2025: 5 spills, 11 h
  • William Allen Lane CSO Not discharging
    Southern Water · into Scrase Stream · 210 m by river above Scrasebridge · 2025: 32 spills, 110 h
Between Freshfield Bridge and Goldbridge3 overflows
  • Danehill S.t.w. Not discharging
    Southern Water · into Unnamed Trib Of River Ouse · 8.4 km by river above Goldbridge · 2025: 49 spills, 637 h
  • Newick WwTW Not discharging
    Southern Water · into River Ouse · 770 m by river above Goldbridge · 2025: 18 spills, 36 h
  • Newick WwTW Not discharging
    Southern Water · into River Ouse · 770 m by river above Goldbridge · 2025: 15 spills, 64 h
Between Goldbridge and Anchor Gates2 overflows
  • Fairwarp Pumping Station Not discharging
    Southern Water · into Shortbridge Stream · 14.0 km by river above Anchor Gates · 2025: 10 spills, 53 h
  • Maresfield WwTW No live feed
    Southern Water · into Shortbridge Stream · 9.0 km by river above Anchor Gates · 2025: 13 spills, 114 h
River Uck, above Buxtedjoins the Ouse above Anchor Gates1 overflow
  • Buxted WwTW Not discharging
    Southern Water · into River Uck · 430 m by river above Buxted · 2025: 19 spills, 171 h
River Uck, above Uckfield Mill upstreamjoins the Ouse above Anchor Gates2 overflows
  • Blackboys WwTW Not discharging
    Southern Water · into Tickerage Stream · 6.7 km by river above Uckfield Mill upstream · 2025: 48 spills, 397 h
  • Framfield Road Sewage Pumping Not discharging
    Southern Water · into Freshwater River · 830 m by river above Uckfield Mill upstream · 2025: 1 spill, 0.6 h · placed on the river by its position alone
River Uck, above Isfield weirjoins the Ouse above Anchor Gates4 overflows
  • Halland WwTW Not discharging
    Southern Water · into Ridgewood Stream · 9.0 km by river above Isfield weir · 2025: 76 spills, 1,209 h
  • High Street Uckfield CSO Not discharging
    Southern Water · into Freshwater River · 3.3 km by river above Isfield weir · 2025: 16 spills, 40 h · placed on the river by its position alone
  • Bell Lane Pumping Station Not discharging
    Southern Water · into Freshwater River · 2.9 km by river above Isfield weir · 2025: 3 spills, 14 h · placed on the river by its position alone
  • Uckfield Wastewater Treatment Works Not discharging
    Southern Water · into The Ridgewood Stream · 2.2 km by river above Isfield weir · 2025: 6 spills, 41 h
Above Barcombe USGS1 overflow
  • Barcombe New S.t.w. Not discharging
    Southern Water · into Bevern Stream · 4.8 km by river above Barcombe USGS · 2025: 49 spills, 510 h
Above GOLDBRIDGE GS1 overflow
  • Jackies Lane Newick CEO Not discharging
    Southern Water · into Tributary Of River Ouse · 2.6 km by river above GOLDBRIDGE GS · 2025: 23 spills, 105 h

Near these gauges, connection not known

Within 3 km of one of the Ouse’s gauges in a straight line, but the river map cannot say whether their water reaches it.

  • Court Road Wwps, Lewes Not discharging
    Southern Water · into The River Ouse · 540 m from Lewes Corporation Yard in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 8 spills, 3.4 h
  • Ham Lane Lewes Settles Storm Tank Not discharging
    Southern Water · into The Tidal River Ouse · 1.5 km from Lewes Corporation Yard in a straight line · discharges to the sea, an estuary or tidal water · 2025: 155 spills, 2,485 h
  • Ardingly WwTW Not discharging
    Southern Water · into Lywood Stream · 1.8 km from Ardingly in a straight line · no mapped watercourse close enough to be sure · 2025: 17 spills, 122 h
  • Ardingly WwTW, Ardingly Not discharging
    Southern Water · into Lywood Stream Trib. River Ouse · 1.8 km from Ardingly in a straight line · no mapped watercourse close enough to be sure · 2025: 3 spills, 5.7 h
  • Kingston Hollow WwTW Not discharging
    Southern Water · into Celery Sewer Trib.r. Ouse · 2.7 km from Lewes Corporation Yard in a straight line · its watercourse is not on the river map · 2025: 19 spills, 32 h
  • Western Road Haywards Heath CSO Not discharging
    Southern Water · into Trib. Of Scrase Bridge Stream · 2.8 km from Lindfield Bridge in a straight line · its watercourse is not on the river map · 2025: 7 spills, 6.3 h

River Ouse — Swale, Ure, Nidd and Upper Ouse, Wharfe and Lower Ouse, Don and Rother and Hull and East Riding

1,247 storm overflows are traced upstream of Blacktoft, the Ouse’s lowest gauge on the river map: on the Ouse itself, on its gauged tributaries, and on smaller streams that join above there.

  • 0 report discharging now
  • 1199 not discharging
  • 48 offline or silent: 22 monitor offline, 10 status unknown, 16 no live feed

Official figures for 2025, for the overflows traced upstream of Blacktoft: 32,476 spills over 186,303 hours in total, across the 1,240 that have a figure. 7 had no usable monitor data that year.

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 Ouse 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 Monkton, the Ouse’s highest gauge5 overflows
  • Moor Monkton East SPS Not discharging
    Yorkshire Water · into River Nidd · 2.5 km by river above Monkton · 2025: 4 spills, 1.5 h
  • Nunmonkton Common CSO Not discharging
    Yorkshire Water · into Mill Sike · 2.1 km by river above Monkton · 2025: 4 spills, 2.4 h
  • Nun Monkton Sewage Treatment Works Not discharging
    Yorkshire Water · into River Nidd · 1.9 km by river above Monkton · 2025: 50 spills, 330 h

and 2 more: show all 5 overflows on this stretch → All above Monkton, nearest first →

River Kyle, above Newton on Ousejoins the Ouse above Monkton2 overflows
River Nidd, and the streams that join itjoins the Ouse above Monkton50 overflows
  • Tockwith Treatment Works Not discharging
    Yorkshire Water · into Fleet Beck · 9.6 km by river above Skip Bridge · 2025: 20 spills, 167 h
  • Kirk Hammerton STW Not discharging
    Yorkshire Water · into River Nidd · 3.0 km by river above Skip Bridge · 2025: 31 spills, 148 h
  • Kirk Hammerton STW Not discharging
    Yorkshire Water · into River Nidd · 3.0 km by river above Skip Bridge · 2025: 21 spills, 74 h

and 47 more: show all 50 overflows on the Nidd and the streams that join it → All above Skip Bridge, nearest first →

River Ure, and the streams that join itjoins the Ouse above Monkton108 overflows
  • Myton On Swale Sewage Works Not discharging
    Yorkshire Water · into River Swale · 7.6 km by river above Aldwark Bridge · 2025: 61 spills, 938 h
  • Upper Dunsforth CSO Not discharging
    Yorkshire Water · into Caulkhill Beck · 4.0 km by river above Aldwark Bridge · 2025: 4 spills, 5.8 h
  • Aldwark Moor Sewage Treatment Works Not discharging
    Yorkshire Water · into Unnamed Trib Of River Ure · 1.4 km by river above Aldwark Bridge · 2025: 44 spills, 105 h

and 105 more: show all 108 overflows on the Ure and the streams that join it → All above Aldwark Bridge, nearest first →

Between Monkton and Skelton3 overflows
  • Shipton STW No live feed
    Yorkshire Water · into Hurns Gutter · 3.6 km by river above Skelton · 2025: 31 spills, 231 h
  • Shipton STW No live feed
    Yorkshire Water · into Hurns Gutter · 3.6 km by river above Skelton · 2025: 7 spills, 17 h
  • Riverside Gardens SPS Not discharging
    Yorkshire Water · into A Tributary Of The River Ouse · 1.1 km by river above Skelton · 2025: 62 spills, 306 h
Between Skelton and Clifton Ings Outfall1 overflow
  • Landing Lane CSO Monitor offline
    Yorkshire Water · into River Ouse · 540 m by river above Clifton Ings Outfall · 2025: 13 spills, 108 h
Holgate Beck, above Holgatejoins the Ouse above Clifton Ings Outfall6 overflows
  • Holgate Road No.2 CSO Not discharging
    Yorkshire Water · into Holgate Beck · 1.2 km by river above Holgate · 2025: 34 spills, 103 h
  • Poppleton Road North CSO Not discharging
    Yorkshire Water · into Culverted Holgate Beck · 960 m by river above Holgate · 2025: 38 spills, 53 h
  • Poppleton Road South 2 CSO Not discharging
    Yorkshire Water · into Holgate Beck · 960 m by river above Holgate · 2025: 38 spills, 103 h

and 3 more: show all 6 overflows on this stretch → All above Holgate, nearest first →

Between Clifton Ings Outfall and Viking Recorder13 overflows
  • Queen Street Bridge CSO Not discharging
    Yorkshire Water · into River Ouse · 210 m by river above Viking Recorder · 2025: 23 spills, 21 h
  • Station Road CSO Not discharging
    Yorkshire Water · into River Ouse · 210 m by river above Viking Recorder · 2025: 1 spill, 0 h
  • Lendal Hill Combined Sewer Overflow Not discharging
    Yorkshire Water · into River Ouse · 180 m by river above Viking Recorder · 2025: 89 spills, 1,126 h

and 10 more: show all 13 overflows on this stretch → All above Viking Recorder, nearest first →

Between Viking Recorder and York Foss Barrier5 overflows
  • Skeldergate Bridge CSO Not discharging
    Yorkshire Water · into River Ouse · 300 m by river above York Foss Barrier · 2025: 82 spills, 987 h
  • Skeldergate Bridge CSO Not discharging
    Yorkshire Water · into River Ouse · 290 m by river above York Foss Barrier · 2025: 74 spills, 254 h
  • Castle Mills CSO Not discharging
    Yorkshire Water · into River Ouse · 190 m by river above York Foss Barrier · 2025: 10 spills, 5.1 h

and 2 more: show all 5 overflows on this stretch → All above York Foss Barrier, nearest first →

Between York Foss Barrier and Naburn Lock11 overflows
  • Fulford Sewage Pumping Station Not discharging
    Yorkshire Water · into River Ouse · 7.1 km by river above Naburn Lock · 2025: 94 spills, 1,679 h
  • Fulford Main CSO Not discharging
    Yorkshire Water · into Germany Beck · 6.5 km by river above Naburn Lock · 2025: 46 spills, 72 h
  • Naburn York Road SPS Not discharging
    Yorkshire Water · into River Ouse · 1.8 km by river above Naburn Lock · 2025: 33 spills, 432 h

and 8 more: show all 11 overflows on this stretch → All above Naburn Lock, nearest first →

River Foss, and the streams that join itjoins the Ouse above Naburn Lock20 overflows
  • Foss Islands Road CSO Not discharging
    Yorkshire Water · into Tang Hall Beck · 750 m by river above York Castle Mills Sluices · 2025: 31 spills, 141 h
  • Walmgate CSO Not discharging
    Yorkshire Water · into Tang Hall Beck · 660 m by river above York Castle Mills Sluices · 2025: 21 spills, 39 h
  • Piccadilly CSO Not discharging
    Yorkshire Water · into River Foss · 330 m by river above York Castle Mills Sluices · 2025: 10 spills, 7.3 h

and 17 more: show all 20 overflows on the Foss and the streams that join it → All above York Foss Barrier, nearest first →

River Wharfe, and the streams that join itjoins the Ouse above Cawood67 overflows
  • Britannia Inn CSO Not discharging
    Yorkshire Water · into River Wharfe · 1.1 km by river above Cock Beck Sluices · 2025: 39 spills, 200 h
  • Tadcaster Brittania CSO Not discharging
    Yorkshire Water · into River Wharfe · 1.1 km by river above Cock Beck Sluices · 2025: 24 spills, 107 h
  • Tadcaster Wpc Works Not discharging
    Yorkshire Water · into River Wharfe · 9.6 km by river above Nun Appleton Fleet Pumping Station · 2025: 11 spills, 105 h

and 64 more: show all 67 overflows on the Wharfe and the streams that join it → All above Nun Appleton Fleet Pumping Station, nearest first →

Between Cawood and Selby Westmill1 overflow
Selby Dam, above Selby Dam Pumping Stationjoins the Ouse above Selby Westmill1 overflow
  • Sherburn In Elmet STW Not discharging
    Yorkshire Water · into Upper Fox Drain · 9.9 km by river above Selby Dam Pumping Station · 2025: 22 spills, 113 h
River Aire, and the streams that join itjoins the Ouse above Goole558 overflows
  • Marsh Lane SPS & Storm Tank Site Not discharging
    Yorkshire Water · into River Aire · 220 m by river above Knottingley Bank Dole Lock · 2025: 33 spills, 315 h
  • Marsh Lane SPS & Storm Tank Site Not discharging
    Yorkshire Water · into River Aire · 220 m by river above Knottingley Bank Dole Lock · 2025: 26 spills, 186 h
  • West Haddlesey STW Not discharging
    Yorkshire Water · into River Aire · 1.0 km by river above Chapel Haddlesey · 2025: 0 spills, 0 h

and 555 more: show all 558 overflows on the Aire and the streams that join it → All above Airmyn, nearest first →

River Derwent, and the streams that join itjoins the Ouse above Goole69 overflows
  • Hayton Sewage Treatment Works Not discharging
    Yorkshire Water · into Hayton Beck · 7.4 km by river above Thornton Lock · 2025: 10 spills, 24 h
  • Barmby Moor SPS CSO Not discharging
    Yorkshire Water · into Unnamed Trib Of Black Dike · 21.0 km by river above Bubwith Bridge · 2025: 94 spills, 788 h
  • Elvington Beck SPS Not discharging
    Yorkshire Water · into Elvington Beck · 13.7 km by river above Bubwith Bridge · 2025: 58 spills, 841 h

and 66 more: show all 69 overflows on the Derwent and the streams that join it → All above Barmby, nearest first →

Between Goole and Blacktoft2 overflows
  • Rawcliffe Park No3 SPS Not discharging
    Yorkshire Water · into Dobeller Drain · 18.3 km by river above Blacktoft · 2025: 20 spills, 71 h
  • Rawcliffe Bridge SPS Not discharging
    Yorkshire Water · into Langham Drain · 17.2 km by river above Blacktoft · 2025: 26 spills, 29 h
River Don, and the streams that join itjoins the Ouse above Blacktoft313 overflows
  • Woodlands Doncaster Road CSO Not discharging
    Yorkshire Water · into Mill Dike · 6.3 km by river above Norwood · 2025: 26 spills, 73 h
  • Great North Road Adwick CSO Not discharging
    Yorkshire Water · into Mill Dike · 6.2 km by river above Norwood · 2025: 16 spills, 32 h
  • Sandall WwTW Not discharging
    Yorkshire Water · into R. Don & R. Don (Old Course) · 7.5 km by river above Kirk Bramwith · 2025: 15 spills, 150 h

and 310 more: show all 313 overflows on the Don and the streams that join it → All above Fishlake, nearest first →

River Went, and the streams that join itjoins the Ouse above Blacktoft12 overflows
  • Kirk Smeaton STW No live feed
    Yorkshire Water · into River Went · 2.0 km by river above Walden Stubbs · 2025: no data
  • Norton No. 2 STW Not discharging
    Yorkshire Water · into River Went · 250 m by river above Walden Stubbs · 2025: 22 spills, 200 h
  • Askern Sewage Pumping Station Not discharging
    Yorkshire Water · into Great Common Drain · 7.6 km by river above Topham Ferry Bridge · 2025: 37 spills, 161 h

and 9 more: show all 12 overflows on the Went and the streams that join it → All above Went Outfall, nearest first →

Near these gauges, connection not known

Within 3 km of one of the Ouse’s gauges in a straight line, but the river map cannot say whether their water reaches it.

  • Goole Lock Hill SPS Not discharging
    Yorkshire Water · into River Ouse · 50 m from Goole in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 44 spills, 51 h
  • Holme Lane SPS Not discharging
    Yorkshire Water · into Ouse · 80 m from Selby Westmill in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 47 spills, 112 h
  • Fishergate CSO Not discharging
    Yorkshire Water · into Tang Hall Beck · 180 m from York Foss Barrier in a straight line · no mapped watercourse close enough to be sure · 2025: 73 spills, 881 h

30 more near these gauges whose connection is not known.

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: © Southern Water storm overflow activity data, licensed under CC BY 4.0. Live status: © Yorkshire Water storm overflow activity data, licensed under CC BY 4.0. Annual figures for England: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence v3.0.

Water samples

Dated samples taken by the Environment Agency, not live readings. Results are published days to months after the sample is taken, and many points are sampled only a few times a year, or have not been sampled for years.

Sampled most recently, anywhere on these rivers and their streams:

River Ouse — Ouse

36 sampling points on the River Ouse and the streams that join it above Lewes Corporation Yard. 13 have a sample from the last 12 months; 24 have any sample banked.

Where, from the source downSampling pointsNewest sample
Above Ardingly7 points3 sampled28 Sep 2026
Above Freshfield Bridge3 points21 May 2026
River Uck and its streamsjoins the Ouse above Anchor Gates7 points5 sampled7 Sep 2026
Above Goldbridge3 points15 Sep 2026
Above Anchor Gates7 points6 sampled27 May 2026
Above Barcombe USGS7 points3 sampled5 May 2026
Above Barcombe1 point3 Jul 2026
Above Lewes Corporation Yard1 point0 samplednone banked

River Ouse — Swale, Ure, Nidd and Upper Ouse, Wharfe and Lower Ouse, Don and Rother and Hull and East Riding

1,174 sampling points on the River Ouse and the streams that join it above Blacktoft. 382 have a sample from the last 12 months; 583 have any sample banked.

Where, from the source downSampling pointsNewest sample
River Ure and its streamsjoins the Ouse above Monkton219 points159 sampled23 Sep 2026
River Wharfe and its streamsjoins the Ouse above Cawood97 points53 sampled11 Sep 2026
River Nidd and its streamsjoins the Ouse above Monkton59 points47 sampled23 Sep 2026
River Aire and its streamsjoins the Ouse above Goole314 points108 sampled23 Sep 2026
River Derwent and its streamsjoins the Ouse above Goole149 points80 sampled21 Sep 2026
River Don and its streamsjoins the Ouse above Blacktoft243 points85 sampled30 Sep 2026
River Foss and its streamsjoins the Ouse above Naburn Lock17 points15 sampled8 Sep 2026
Above Newton on OuseRiver Kyle · joins the Ouse above Monkton9 points6 sampled18 Sep 2026
Above Monkton6 points4 sampled28 May 2026
Above Skelton7 points3 sampled3 Mar 2025
Above HolgateHolgate Beck · joins the Ouse above Clifton Ings Outfall1 point0 samplednone banked
Above Clifton Ings Outfall1 point12 Aug 2026
Above Viking Recorder1 point0 samplednone banked
Above York Foss Barrier1 point12 Dec 2023
Above Naburn Lock2 points0 samplednone banked
Above Nun Appleton Fleet Pumping StationThe Fleet · joins the Ouse above Cawood1 point2 Sep 2026
Above Cawood2 points1 sampled3 Dec 2025
River Went and its streamsjoins the Ouse above Blacktoft24 points7 sampled11 Sep 2026
Above Selby Dam Pumping StationSelby Dam · joins the Ouse above Selby Westmill7 points4 sampled15 Sep 2026
Above Selby Westmill9 points4 sampled7 Sep 2026
Above Goole2 points12 Aug 2026
Above Blacktoft3 points2 sampled10 Mar 2025

England's samples only. Each count opens the list of those points, nearest first, with the date of each one’s latest sample (the gauge’s “Upstream of here” list).

FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.

Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.

Contains OS data © Crown copyright and database rights 2026.