Groundwater level Groundwater Level at Alland Grange Thanet Chalk

Check for flood warnings in this area

Latest recorded level 4.66m at 7:00am Wednesday 5 August 2020.

Groundwater levels at this location in the last 5 days

Now
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• Measured level
• When the water level reaches 7.07m 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
2020-08-05T06:00Z	4.66	false
2020-08-05T05:00Z	4.66	false
2020-08-05T04:00Z	4.65	false
2020-08-05T03:00Z	4.65	false
2020-08-05T02:00Z	4.65	false
2020-08-05T01:00Z	4.65	false
2020-08-05T00:00Z	4.64	false
2020-08-04T23:00Z	4.64	false
2020-08-04T22:00Z	4.64	false
2020-08-04T21:00Z	4.64	false
2020-08-04T20:00Z	4.64	false
2020-08-04T19:00Z	4.63	false
2020-08-04T18:00Z	4.63	false
2020-08-04T17:00Z	4.63	false
2020-08-04T16:00Z	4.62	false
2020-08-04T15:00Z	4.62	false
2020-08-04T14:00Z	4.62	false
2020-08-04T13:00Z	4.62	false
2020-08-04T12:00Z	4.61	false
2020-08-04T11:00Z	4.61	false
2020-08-04T10:00Z	4.61	false
2020-08-04T09:00Z	4.61	false
2020-08-04T08:00Z	4.61	false
2020-08-04T07:00Z	4.61	false
2020-08-04T06:00Z	4.6	false
2020-08-04T05:00Z	4.6	false
2020-08-04T04:00Z	4.6	false
2020-08-04T03:00Z	4.59	false
2020-08-04T02:00Z	4.59	false
2020-08-04T01:00Z	4.59	false
2020-08-04T00:00Z	4.58	false
2020-08-03T23:00Z	4.58	false
2020-08-03T22:00Z	4.58	false
2020-08-03T21:00Z	4.58	false
2020-08-03T20:00Z	4.58	false
2020-08-03T19:00Z	4.57	false
2020-08-03T18:00Z	4.57	false
2020-08-03T17:00Z	4.57	false
2020-08-03T16:00Z	4.56	false
2020-08-03T15:00Z	4.56	false
2020-08-03T14:00Z	4.55	false
2020-08-03T13:00Z	4.55	false
2020-08-03T12:00Z	4.55	false
2020-08-03T11:00Z	4.54	false
2020-08-03T10:00Z	4.54	false
2020-08-03T09:00Z	4.54	false
2020-08-03T08:00Z	4.54	false
2020-08-03T07:00Z	4.53	false
2020-08-03T06:00Z	4.53	false
2020-08-03T05:00Z	4.53	false
2020-08-03T04:00Z	4.52	false
2020-08-03T03:00Z	4.52	false
2020-08-03T02:00Z	4.51	false
2020-08-03T01:00Z	4.51	false
2020-08-03T00:00Z	4.51	false
2020-08-02T23:00Z	4.51	false
2020-08-02T22:00Z	4.51	false
2020-08-02T21:00Z	4.51	false
2020-08-02T20:00Z	4.51	false
2020-08-02T19:00Z	4.51	false
2020-08-02T18:00Z	4.51	false
2020-08-02T17:00Z	4.51	false
2020-08-02T16:00Z	4.51	false
2020-08-02T15:00Z	4.5	false
2020-08-02T14:00Z	4.5	false
2020-08-02T13:00Z	4.5	false
2020-08-02T12:00Z	4.51	false
2020-08-02T11:00Z	4.51	false
2020-08-02T10:00Z	4.51	false
2020-08-02T09:00Z	4.51	false
2020-08-02T08:00Z	4.51	false
2020-08-02T07:00Z	4.51	false
2020-08-02T06:00Z	4.51	false
2020-08-02T05:00Z	4.52	false
2020-08-02T04:00Z	4.52	false
2020-08-02T03:00Z	4.52	false
2020-08-02T02:00Z	4.52	false
2020-08-02T01:00Z	4.52	false
2020-08-02T00:00Z	4.52	false
2020-08-01T23:00Z	4.52	false
2020-08-01T22:00Z	4.52	false
2020-08-01T21:00Z	4.52	false
2020-08-01T20:00Z	4.52	false
2020-08-01T19:00Z	4.52	false
2020-08-01T18:00Z	4.52	false
2020-08-01T17:00Z	4.52	false
2020-08-01T16:00Z	4.52	false
2020-08-01T15:00Z	4.52	false
2020-08-01T14:00Z	4.52	false
2020-08-01T13:00Z	4.52	false
2020-08-01T12:00Z	4.52	false
2020-08-01T11:00Z	4.53	false
2020-08-01T10:00Z	4.53	false
2020-08-01T09:00Z	4.53	false
2020-08-01T08:00Z	4.53	false
2020-08-01T07:00Z	4.53	false
2020-08-01T06:00Z	4.53	false
2020-08-01T05:00Z	4.54	false
2020-08-01T04:00Z	4.54	false
2020-08-01T03:00Z	4.54	false
2020-08-01T02:00Z	4.54	false
2020-08-01T01:00Z	4.54	false
2020-08-01T00:00Z	4.54	false
2020-07-31T23:00Z	4.54	false
2020-07-31T22:00Z	4.54	false
2020-07-31T21:00Z	4.54	false
2020-07-31T20:00Z	4.54	false
2020-07-31T19:00Z	4.54	false
2020-07-31T18:00Z	4.54	false
2020-07-31T17:00Z	4.54	false
2020-07-31T16:00Z	4.54	false
2020-07-31T15:00Z	4.54	false
2020-07-31T14:00Z	4.54	false
2020-07-31T13:00Z	4.54	false
2020-07-31T12:00Z	4.54	false
2020-07-31T11:00Z	4.54	false
2020-07-31T10:00Z	4.54	false
2020-07-31T09:00Z	4.54	false
2020-07-31T08:00Z	4.55	false
2020-07-31T07:00Z	4.55	false

Forecast data

About this location

• Station name: Alland Grange Thanet Chalk
• Station ID: 9130
• Highest level on record: 9.15m on 03 March 2014
• Lowest level on record: 2.14m on 17 July 1992
• Site datum: 40.99mAOD (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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