Longload Main Drain
Joins the Parrett above Westover Pumping Station, no more than 2.9 km by river above Westover Pumping Station. Nearest the Parrett: Huish Episcopi Pumping Station Normal.
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Live levels from 5 monitoring stations across Somerset, updated every 15 minutes.
| Station | Level now | Status | ||
|---|---|---|---|---|
| Chiselborough | 0.06 m 28m ago | Normal | ||
| 8.4 km by river | ||||
| Gaw Bridge | 0.32 mASD 28m ago | Normal | ||
| 15.3 km by river | ||||
| West Sedgemoor Pumping Stationstructure | 4.75 mAOD 43m ago | Normal | ||
| 13.0 km by river | ||||
| West Quaytidal | 1.40 mAOD 43m ago | — | ||
| 5.0 km by river | ||||
| Dunball Tidaltidalstructure | 0.84 mAOD 28m ago | — | ||
Also on the Parrett by the river map, but filed under another river name: Westover Pumping Station and LANGPORT GREAT BOW.
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.
Streams and rivers with a gauge whose water joins the Parrett above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.
Each tributary’s water passes the gauge it joins above and every gauge below it on the Parrett, and none of the gauges above where it joins. For each, the gauge nearest the Parrett is shown; its own page lists the rest.
Joins the Parrett above Westover Pumping Station, no more than 2.9 km by river above Westover Pumping Station. Nearest the Parrett: Huish Episcopi Pumping Station Normal.
Joins the Parrett above Westover Pumping Station, no more than 4.5 km by river above Westover Pumping Station. Nearest the Parrett: Midelney Normal; 2 more gauges further up.
Joins the Parrett above Westover Pumping Station, no more than 2.9 km by river above Westover Pumping Station. Nearest the Parrett: Huish Episcopi Pumping Station Normal; 6 more gauges further up.
Joins the Parrett above Westover Pumping Station, no more than 4.5 km by river above Westover Pumping Station. Nearest the Parrett: Midelney Normal.
Joins the Parrett between West Sedgemoor Pumping Station and West Quay, no more than 12.0 km by river above West Quay. Nearest the Parrett: Currymoor Pumping Station Normal.
Joins the Parrett between West Sedgemoor Pumping Station and West Quay, no more than 5.8 km by river above West Quay. Nearest the Parrett: Northmoor Pumping Station Normal; 1 more gauge further up.
Joins the Parrett between West Sedgemoor Pumping Station and West Quay, no more than 12.0 km by river above West Quay. Nearest the Parrett: Currymoor Pumping Station Low; 8 more gauges further up. Gauged streams joining it: Hillfarrance Brook, Norton Brook and Old River Tone.
Joins the Parrett between West Sedgemoor Pumping Station and West Quay, no more than 13.0 km by river above West Quay. Nearest the Parrett: West Sedgemoor Pumping Station Normal.
Joins the Parrett between West Quay and Dunball Tidal, no more than 160 m by river above Dunball Tidal. Nearest the Parrett: Dunball Normal; 1 more gauge further up.
No gauge below Dunball Tidal 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.
90 storm overflows are traced upstream of Dunball Tidal, the Parrett’s lowest gauge on the river map: on the Parrett itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflows traced upstream of Dunball Tidal: 2,171 spills over 25,093 hours in total, across all 90.
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 Parrett 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 →
and 2 more: show all 5 overflows on this stretch → All above Chiselborough, nearest first →
and 2 more: show all 5 overflows on this stretch → All above West Sedgemoor Pumping Station, nearest first →
and 21 more: show all 24 overflows on the Tone and the streams that join it → All above Currymoor Pumping Station, nearest first →
and 2 more: show all 5 overflows on this stretch → All above Dunball, nearest first →
and 10 more: show all 13 overflows on the Isle and the streams that join it → All above Midelney, nearest first →
and 28 more: show all 31 overflows on the Yeo and the streams that join it → All above Huish Episcopi Pumping Station, nearest first →
Within 3 km of one of the Parrett’s gauges in a straight line, but the river map cannot say whether their water reaches it.
18 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: © Wessex 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.
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.
166 sampling points on the River Parrett and the streams that join it above Dunball Tidal. 78 have a sample from the last 12 months; 85 have any sample banked.
Sampled most recently, anywhere on the Parrett and its streams:
| Where, from the source down | Sampling points | Newest sample |
|---|---|---|
| River Yeo and its streamsjoins the Parrett above Westover Pumping Station | 43 points17 sampled | 21 Sep 2026 |
| River Isle and its streamsjoins the Parrett above Westover Pumping Station | 20 points13 sampled | 1 Oct 2026 |
| Above Chiselborough | 14 points7 sampled | 18 Sep 2026 |
| Above Gaw Bridge | 10 points8 sampled | 18 Sep 2026 |
| Above MidelneyWest Moor Drain · joins the Parrett above Westover Pumping Station | 1 point | 5 Aug 2026 |
| Above Huish Episcopi Pumping StationLongload Main Drain · joins the Parrett above Westover Pumping Station | 1 point | 17 Aug 2026 |
| Above Westover Pumping StationHuish Level Rhyne | 8 points4 sampled | 16 Sep 2026 |
| Above LANGPORT GREAT BOW | 1 point | 12 Aug 2026 |
| Above West Sedgemoor Pumping Station | 1 point0 sampled | none banked |
| Above West Sedgemoor Pumping StationWest Sedgemoor Drain · joins the Parrett above West Quay | 3 points1 sampled | 1 Dec 2025 |
| Above Currymoor Pumping StationCurrymoor Drain · joins the Parrett above West Quay | 1 point0 sampled | none banked |
| River Tone and its streamsjoins the Parrett above West Quay | 47 points24 sampled | 1 Oct 2026 |
| Above Northmoor Pumping StationNorthmoor Main Drain · joins the Parrett above West Quay | 2 points1 sampled | 5 Mar 2024 |
| Above West Quay | 3 points0 sampled | none banked |
| Above BradneyKing's Sedgemoor Drain · joins the Parrett above Dunball Tidal | 11 points7 sampled | 21 Sep 2026 |
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.
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