Groundwater level Groundwater Level at South Warnborough

Check for flood warnings in this area

Latest recorded level 87.38m at 3:00am Saturday 15 August 2020.

Groundwater levels at this location in the last 5 days

Now
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• Measured level
• When the water level reaches 96.06m here, minor flooding is possible in this area
• Highest recorded level. Hide
• Show highest recorded level

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Observed data

DateTime	Value	Error
2020-08-15T02:00Z	87.375	false
2020-08-15T01:00Z	87.377	false
2020-08-15T00:00Z	87.377	false
2020-08-14T23:00Z	87.378	false
2020-08-14T22:00Z	87.379	false
2020-08-14T21:00Z	87.38	false
2020-08-14T20:00Z	87.382	false
2020-08-14T19:00Z	87.381	false
2020-08-14T18:00Z	87.382	false
2020-08-14T17:00Z	87.382	false
2020-08-14T16:00Z	87.383	false
2020-08-14T15:00Z	87.383	false
2020-08-14T14:00Z	87.383	false
2020-08-14T13:00Z	87.381	false
2020-08-14T12:00Z	87.377	false
2020-08-14T11:00Z	87.39	false
2020-08-14T10:00Z	87.39	false
2020-08-14T09:00Z	87.391	false
2020-08-14T08:00Z	87.392	false
2020-08-14T07:00Z	87.393	false
2020-08-14T06:00Z	87.394	false
2020-08-14T05:00Z	87.395	false
2020-08-14T04:00Z	87.397	false
2020-08-14T03:00Z	87.397	false
2020-08-14T02:00Z	87.397	false
2020-08-14T01:00Z	87.399	false
2020-08-14T00:00Z	87.399	false
2020-08-13T23:00Z	87.4	false
2020-08-13T22:00Z	87.401	false
2020-08-13T21:00Z	87.401	false
2020-08-13T20:00Z	87.402	false
2020-08-13T19:00Z	87.403	false
2020-08-13T18:00Z	87.405	false
2020-08-13T17:00Z	87.404	false
2020-08-13T16:00Z	87.404	false
2020-08-13T15:00Z	87.404	false
2020-08-13T14:00Z	87.404	false
2020-08-13T13:00Z	87.403	false
2020-08-13T12:00Z	87.401	false
2020-08-13T11:00Z	87.412	false
2020-08-13T10:00Z	87.412	false
2020-08-13T09:00Z	87.413	false
2020-08-13T08:00Z	87.414	false
2020-08-13T07:00Z	87.415	false
2020-08-13T06:00Z	87.415	false
2020-08-13T05:00Z	87.416	false
2020-08-13T04:00Z	87.416	false
2020-08-13T03:00Z	87.418	false
2020-08-13T02:00Z	87.419	false
2020-08-13T01:00Z	87.419	false
2020-08-13T00:00Z	87.419	false
2020-08-12T23:00Z	87.419	false
2020-08-12T22:00Z	87.419	false
2020-08-12T21:00Z	87.42	false
2020-08-12T20:00Z	87.418	false
2020-08-12T19:00Z	87.415	false
2020-08-12T18:00Z	87.428	false
2020-08-12T17:00Z	87.429	false
2020-08-12T16:00Z	87.426	false
2020-08-12T15:00Z	87.426	false
2020-08-12T14:00Z	87.426	false
2020-08-12T13:00Z	87.423	false
2020-08-12T12:00Z	87.429	false
2020-08-12T11:00Z	87.434	false
2020-08-12T10:00Z	87.436	false
2020-08-12T09:00Z	87.435	false
2020-08-12T08:00Z	87.436	false
2020-08-12T07:00Z	87.436	false
2020-08-12T06:00Z	87.437	false
2020-08-12T05:00Z	87.436	false
2020-08-12T04:00Z	87.436	false
2020-08-12T03:00Z	87.435	false
2020-08-12T02:00Z	87.432	false
2020-08-12T01:00Z	87.446	false
2020-08-12T00:00Z	87.446	false
2020-08-11T23:00Z	87.447	false
2020-08-11T22:00Z	87.446	false
2020-08-11T21:00Z	87.447	false
2020-08-11T20:00Z	87.448	false
2020-08-11T19:00Z	87.448	false
2020-08-11T18:00Z	87.449	false
2020-08-11T17:00Z	87.448	false
2020-08-11T16:00Z	87.446	false
2020-08-11T15:00Z	87.444	false
2020-08-11T14:00Z	87.456	false
2020-08-11T13:00Z	87.456	false
2020-08-11T12:00Z	87.456	false
2020-08-11T11:00Z	87.455	false
2020-08-11T10:00Z	87.455	false
2020-08-11T09:00Z	87.454	false
2020-08-11T08:00Z	87.463	false
2020-08-11T07:00Z	87.464	false
2020-08-11T06:00Z	87.466	false
2020-08-11T05:00Z	87.466	false
2020-08-11T04:00Z	87.466	false
2020-08-11T03:00Z	87.469	false
2020-08-11T02:00Z	87.469	false
2020-08-11T01:00Z	87.469	false
2020-08-11T00:00Z	87.47	false
2020-08-10T23:00Z	87.47	false
2020-08-10T22:00Z	87.47	false
2020-08-10T21:00Z	87.472	false
2020-08-10T20:00Z	87.472	false
2020-08-10T19:00Z	87.471	false
2020-08-10T18:00Z	87.47	false
2020-08-10T17:00Z	87.467	false
2020-08-10T16:00Z	87.48	false
2020-08-10T15:00Z	87.481	false
2020-08-10T14:00Z	87.481	false
2020-08-10T13:00Z	87.481	false
2020-08-10T12:00Z	87.481	false
2020-08-10T11:00Z	87.483	false
2020-08-10T10:00Z	87.483	false
2020-08-10T09:00Z	87.482	false
2020-08-10T08:00Z	87.482	false
2020-08-10T07:00Z	87.479	false
2020-08-10T06:00Z	87.49	false
2020-08-10T05:00Z	87.491	false
2020-08-10T04:00Z	87.492	false
2020-08-10T03:00Z	87.493	false

Forecast data

About this location

• Station name: South Warnborough
• Station ID: 9281
• Highest level on record: 97.13m on 18 February 2014
• Lowest level on record: 84.97m on 27 October 2005
• Site datum: 122.27mAOD (what does this mean?)

Can groundwater increase flood risk?

If groundwater height is below the level of a building, the risk of flooding from groundwater alone is unlikely. You can find out the height of any location using an ordnance survey map.

Flooding is more likely to occur when several things happen together, such as poor weather, high tides and high river and groundwater levels. You can find out more about the latest flood warning information in England and Wales.

How are groundwater levels measured?

The Environment Agency uses a network of boreholes accross the country. Each one has its own datum - a height in metres fixed relative to mean sea level. This height is expressed as metres above ordnance datum (mAOD).
The groundwater levels we provide for each borehole are all relative to its site datum.

How often are groundwater levels measured?

The data we collect is fed into this service once a day under normal conditions.
We increase this frequency whenever there's a greater risk of flooding.

• View nearby measuring stations

• View the flood information service for England
• View your property's long term risk of flooding

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