Groundwater level River Dour at Alkham Valley Borehole

Check for flood warnings in this area

Latest recorded level 34.46m at 7:00am Thursday 22 August 2019.

Groundwater levels at this location in the last 5 days

Now
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• Measured level
• When the water level reaches 44.91m 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
2019-08-22T06:00Z	34.456	false
2019-08-22T05:00Z	34.458	false
2019-08-22T04:00Z	34.459	false
2019-08-22T03:00Z	34.461	false
2019-08-22T02:00Z	34.462	false
2019-08-22T01:00Z	34.465	false
2019-08-22T00:00Z	34.466	false
2019-08-21T23:00Z	34.467	false
2019-08-21T22:00Z	34.469	false
2019-08-21T21:00Z	34.47	false
2019-08-21T20:00Z	34.471	false
2019-08-21T19:00Z	34.472	false
2019-08-21T18:00Z	34.473	false
2019-08-21T17:00Z	34.474	false
2019-08-21T16:00Z	34.475	false
2019-08-21T15:00Z	34.476	false
2019-08-21T14:00Z	34.477	false
2019-08-21T13:00Z	34.479	false
2019-08-21T12:00Z	34.481	false
2019-08-21T11:00Z	34.483	false
2019-08-21T10:00Z	34.484	false
2019-08-21T09:00Z	34.486	false
2019-08-21T08:00Z	34.487	false
2019-08-21T07:00Z	34.488	false
2019-08-21T06:00Z	34.489	false
2019-08-21T05:00Z	34.491	false
2019-08-21T04:00Z	34.491	false
2019-08-21T03:00Z	34.493	false
2019-08-21T02:00Z	34.495	false
2019-08-21T01:00Z	34.496	false
2019-08-21T00:00Z	34.498	false
2019-08-20T23:00Z	34.499	false
2019-08-20T22:00Z	34.501	false
2019-08-20T21:00Z	34.502	false
2019-08-20T20:00Z	34.503	false
2019-08-20T19:00Z	34.504	false
2019-08-20T18:00Z	34.505	false
2019-08-20T17:00Z	34.506	false
2019-08-20T16:00Z	34.506	false
2019-08-20T15:00Z	34.507	false
2019-08-20T14:00Z	34.509	false
2019-08-20T13:00Z	34.509	false
2019-08-20T12:00Z	34.511	false
2019-08-20T11:00Z	34.513	false
2019-08-20T10:00Z	34.514	false
2019-08-20T09:00Z	34.515	false
2019-08-20T08:00Z	34.517	false
2019-08-20T07:00Z	34.518	false
2019-08-20T06:00Z	34.519	false
2019-08-20T05:00Z	34.52	false
2019-08-20T04:00Z	34.522	false
2019-08-20T03:00Z	34.523	false
2019-08-20T02:00Z	34.524	false
2019-08-20T01:00Z	34.525	false
2019-08-20T00:00Z	34.526	false
2019-08-19T23:00Z	34.528	false
2019-08-19T22:00Z	34.529	false
2019-08-19T21:00Z	34.53	false
2019-08-19T20:00Z	34.531	false
2019-08-19T19:00Z	34.533	false
2019-08-19T18:00Z	34.534	false
2019-08-19T17:00Z	34.535	false
2019-08-19T16:00Z	34.535	false
2019-08-19T15:00Z	34.537	false
2019-08-19T14:00Z	34.538	false
2019-08-19T13:00Z	34.539	false
2019-08-19T12:00Z	34.54	false
2019-08-19T11:00Z	34.542	false
2019-08-19T10:00Z	34.543	false
2019-08-19T09:00Z	34.544	false
2019-08-19T08:00Z	34.545	false
2019-08-19T07:00Z	34.547	false
2019-08-19T06:00Z	34.548	false
2019-08-19T05:00Z	34.549	false
2019-08-19T04:00Z	34.55	false
2019-08-19T03:00Z	34.551	false
2019-08-19T02:00Z	34.551	false
2019-08-19T01:00Z	34.553	false
2019-08-19T00:00Z	34.553	false
2019-08-18T23:00Z	34.555	false
2019-08-18T22:00Z	34.556	false
2019-08-18T21:00Z	34.558	false
2019-08-18T20:00Z	34.558	false
2019-08-18T19:00Z	34.559	false
2019-08-18T18:00Z	34.56	false
2019-08-18T17:00Z	34.561	false
2019-08-18T16:00Z	34.562	false
2019-08-18T15:00Z	34.563	false
2019-08-18T14:00Z	34.564	false
2019-08-18T13:00Z	34.564	false
2019-08-18T12:00Z	34.566	false
2019-08-18T11:00Z	34.567	false
2019-08-18T10:00Z	34.567	false
2019-08-18T09:00Z	34.569	false
2019-08-18T08:00Z	34.57	false
2019-08-18T07:00Z	34.57	false
2019-08-18T06:00Z	34.571	false
2019-08-18T05:00Z	34.572	false
2019-08-18T04:00Z	34.573	false
2019-08-18T03:00Z	34.573	false
2019-08-18T02:00Z	34.574	false
2019-08-18T01:00Z	34.574	false
2019-08-18T00:00Z	34.575	false
2019-08-17T23:00Z	34.576	false
2019-08-17T22:00Z	34.577	false
2019-08-17T21:00Z	34.577	false
2019-08-17T20:00Z	34.578	false
2019-08-17T19:00Z	34.578	false
2019-08-17T18:00Z	34.58	false
2019-08-17T17:00Z	34.58	false
2019-08-17T16:00Z	34.58	false
2019-08-17T15:00Z	34.58	false
2019-08-17T14:00Z	34.58	false
2019-08-17T13:00Z	34.58	false
2019-08-17T12:00Z	34.58	false
2019-08-17T11:00Z	34.581	false
2019-08-17T10:00Z	34.582	false
2019-08-17T09:00Z	34.583	false
2019-08-17T08:00Z	34.583	false
2019-08-17T07:00Z	34.584	false

Forecast data

About this location

• Station name: Alkham Valley Borehole
• Station ID: 9139
• Highest level on record: 45.63m on 14 December 2000
• Lowest level on record: 28.80m on 07 November 1996
• Site datum: 47.09mAOD (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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