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Groundwater flooding in the Upper Og Valley

Areas at risk of groundwater flooding in the Upper Og Valley

Flood alert area Groundwater Swindon, Wiltshire Thames

Map

Nearby Monitoring Stations

Draycot Foliat
Groundwater Level • Ogbourne • 2.5 km (upstream)
Steady · normal
143.00 m
12h ago
Water Acre
Groundwater Level • Aldbourne • 6.7 km (downstream)
Easing · normal — Easing — down from 126.32 at 04:00, now 126.27
126.27 m
10h ago
Longacre
Groundwater Level • Upper Lambourn • 14.9 km (downstream)
Easing · normal — Easing — down from 126.01 at 01:00, now 125.96
125.96 m
14h ago
Northfield Farm
Groundwater Level • Lambourn (Great Shefford) • 19.8 km (downstream)
Steady · normal
106.56 m
15h ago
Everleigh
Groundwater Level • 21.7 km (downstream)
Steady · normal
120.48 m
1h ago
Hazelberry Plantation
Groundwater Level • 23.2 km (upstream)
Easing · normal — Easing — down from 104.86 at 00:01, now 104.82
104.82 m
1h ago
Chapel Wood
Groundwater Level • Winterbourne • 26.5 km (downstream)
Easing · normal — Easing — down from 104.14 at 03:00, now 104.10
104.10 m
12h ago
Hodcott
Groundwater Level • Upper Pang • 29.5 km (upstream)
Easing · normal — Easing — down from 105.20 at 22:00, now 105.14
105.14 m
15h ago
Poulton Farm
River Og • Marlborough • 6.3 km
structure gauge
0.07 m
33min ago
Marlborough
River Kennet • Marlborough • 7.6 km
Steady · normal
0.04 m
33min ago

Flood Event History (16)

3 Mar 2026 at 11:39am Flood Alert
Groundwater levels are now falling steadily. We do not expect further flooding and the flood alert has been removed.  Rivers and streams remain full due to high groundwater levels and will react rapidly to further rainfall. Groundwater levels will remain sensitive to further rainfall over the coming...
24 Feb 2026 at 11:41am Flood Alert
Groundwater levels are high at our Draycot borehole in the Upper Og Valley and flooding of low-lying areas and roads is possible. We expect levels to remain high over the coming days and levels will remain sensitive to further rainfall. Due to the nature of groundwater flooding, this situation cou...
23 Jan 2026 at 3:01pm Flood Alert
9 Feb 2024 at 2:17pm Flood Alert
2 Jan 2024 at 8:26am Flood Alert
11 Nov 2023 at 2:04pm Flood Alert
4 Nov 2023 at 5:05pm Flood Alert
2 Jan 2023 at 12:58pm Flood Alert
29 Jan 2021 at 2:20pm Flood Alert
16 Mar 2020 at 5:23pm Flood Alert
15 Jan 2020 at 8:23pm Flood Alert
16 Dec 2019 at 5:06pm Flood Alert
9 Jan 2014 at 10:08am Flood Alert
28 Jan 2013 at 12:42pm Flood Alert
24 Dec 2012 at 10:46am Flood Alert
26 Nov 2012 at 6:48pm Flood Alert

Related Flood Areas

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Groundwater flooding for the Crane
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Groundwater flooding for the Crichel
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Groundwater flooding for the Devils Brook
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Groundwater flooding for the Ebble Valley
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Groundwater flooding for the Gussage
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Groundwater flooding for the Hooke
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Groundwater flooding for the Iwerne
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Groundwater flooding for the North Winterborne, north of the A354
Groundwater • Dorset Council
Groundwater flooding for the North Winterborne, south of the A354
Groundwater • Dorset Council

Official sources for this area

This area on the Environment Agency’s flood service →
Floodline quick dial: 171901 — call 0345 988 1188 and give that code for a recorded update on this area.
Area code: 061FAG22OgVal

Live warnings and area boundaries are the Environment Agency’s and the EA is the authority on them. Contains public sector information licensed under the Open Government Licence v3.0. This area in the EA’s own data.