Groundwater level Groundwater Level at South Warnborough

Check for flood warnings in this area

Latest recorded level 88.58m at 10:00pm Monday 26 July 2021.

Groundwater levels at this location in the last 5 days

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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
2021-07-26T21:00Z	88.575	false
2021-07-26T20:00Z	88.576	false
2021-07-26T19:00Z	88.576	false
2021-07-26T18:00Z	88.576	false
2021-07-26T17:00Z	88.576	false
2021-07-26T16:00Z	88.577	false
2021-07-26T15:00Z	88.577	false
2021-07-26T14:00Z	88.576	false
2021-07-26T13:00Z	88.575	false
2021-07-26T12:00Z	88.574	false
2021-07-26T11:00Z	88.579	false
2021-07-26T10:00Z	88.584	false
2021-07-26T09:00Z	88.585	false
2021-07-26T08:00Z	88.586	false
2021-07-26T07:00Z	88.586	false
2021-07-26T06:00Z	88.587	false
2021-07-26T05:00Z	88.587	false
2021-07-26T04:00Z	88.587	false
2021-07-26T03:00Z	88.588	false
2021-07-26T02:00Z	88.587	false
2021-07-26T01:00Z	88.587	false
2021-07-26T00:00Z	88.586	false
2021-07-25T23:00Z	88.584	false
2021-07-25T22:00Z	88.583	false
2021-07-25T21:00Z	88.586	false
2021-07-25T20:00Z	88.591	false
2021-07-25T19:00Z	88.597	false
2021-07-25T18:00Z	88.597	false
2021-07-25T17:00Z	88.597	false
2021-07-25T16:00Z	88.597	false
2021-07-25T15:00Z	88.598	false
2021-07-25T14:00Z	88.598	false
2021-07-25T13:00Z	88.598	false
2021-07-25T12:00Z	88.598	false
2021-07-25T11:00Z	88.597	false
2021-07-25T10:00Z	88.596	false
2021-07-25T09:00Z	88.595	false
2021-07-25T08:00Z	88.6	false
2021-07-25T07:00Z	88.605	false
2021-07-25T06:00Z	88.606	false
2021-07-25T05:00Z	88.608	false
2021-07-25T04:00Z	88.608	false
2021-07-25T03:00Z	88.607	false
2021-07-25T02:00Z	88.608	false
2021-07-25T01:00Z	88.608	false
2021-07-25T00:00Z	88.608	false
2021-07-24T23:00Z	88.607	false
2021-07-24T22:00Z	88.607	false
2021-07-24T21:00Z	88.606	false
2021-07-24T20:00Z	88.604	false
2021-07-24T19:00Z	88.606	false
2021-07-24T18:00Z	88.611	false
2021-07-24T17:00Z	88.615	false
2021-07-24T16:00Z	88.614	false
2021-07-23T23:00Z	88.62	false
2021-07-23T22:00Z	88.62	false
2021-07-23T21:00Z	88.617	false
2021-07-23T20:00Z	88.619	false
2021-07-23T19:00Z	88.621	false
2021-07-23T18:00Z	88.63	false
2021-07-23T17:00Z	88.63	false
2021-07-23T16:00Z	88.63	false
2021-07-23T15:00Z	88.628	false
2021-07-23T14:00Z	88.628	false
2021-07-23T13:00Z	88.627	false
2021-07-23T12:00Z	88.627	false
2021-07-23T11:00Z	88.625	false
2021-07-23T10:00Z	88.623	false
2021-07-23T09:00Z	88.627	false
2021-07-23T08:00Z	88.633	false
2021-07-23T07:00Z	88.634	false
2021-07-23T06:00Z	88.634	false
2021-07-23T05:00Z	88.634	false
2021-07-23T04:00Z	88.635	false
2021-07-23T03:00Z	88.634	false
2021-07-23T02:00Z	88.634	false
2021-07-23T01:00Z	88.634	false
2021-07-23T00:00Z	88.633	false
2021-07-22T23:00Z	88.632	false
2021-07-22T22:00Z	88.632	false
2021-07-22T21:00Z	88.63	false
2021-07-22T20:00Z	88.63	false
2021-07-22T19:00Z	88.635	false
2021-07-22T18:00Z	88.639	false
2021-07-22T17:00Z	88.639	false
2021-07-22T16:00Z	88.639	false
2021-07-22T15:00Z	88.639	false
2021-07-22T14:00Z	88.638	false
2021-07-22T13:00Z	88.637	false
2021-07-22T12:00Z	88.635	false
2021-07-22T11:00Z	88.636	false
2021-07-22T10:00Z	88.641	false
2021-07-22T09:00Z	88.645	false
2021-07-22T08:00Z	88.645	false
2021-07-22T07:00Z	88.644	false
2021-07-22T06:00Z	88.646	false
2021-07-22T05:00Z	88.646	false
2021-07-22T04:00Z	88.646	false
2021-07-22T03:00Z	88.646	false
2021-07-22T02:00Z	88.646	false
2021-07-22T01:00Z	88.644	false
2021-07-22T00:00Z	88.643	false
2021-07-21T23:00Z	88.642	false
2021-07-21T22:00Z	88.643	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
• Check the long term flood risk for an area in England.

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