Groundwater level Groundwater Level at Alkham Valley

Check for flood warnings in this area

Latest recorded level 39.77m at 7:00am Sunday 20 June 2021.

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
2021-06-20T06:00Z	39.771	false
2021-06-20T05:00Z	39.773	false
2021-06-20T04:00Z	39.775	false
2021-06-20T03:00Z	39.777	false
2021-06-20T02:00Z	39.778	false
2021-06-20T01:00Z	39.78	false
2021-06-20T00:00Z	39.781	false
2021-06-19T23:00Z	39.782	false
2021-06-19T22:00Z	39.784	false
2021-06-19T21:00Z	39.786	false
2021-06-19T20:00Z	39.788	false
2021-06-19T19:00Z	39.788	false
2021-06-19T18:00Z	39.79	false
2021-06-19T17:00Z	39.792	false
2021-06-19T16:00Z	39.793	false
2021-06-19T15:00Z	39.794	false
2021-06-19T14:00Z	39.796	false
2021-06-19T13:00Z	39.797	false
2021-06-19T12:00Z	39.799	false
2021-06-19T11:00Z	39.8	false
2021-06-19T10:00Z	39.802	false
2021-06-19T09:00Z	39.803	false
2021-06-19T08:00Z	39.805	false
2021-06-19T07:00Z	39.806	false
2021-06-19T06:00Z	39.808	false
2021-06-19T05:00Z	39.81	false
2021-06-19T04:00Z	39.811	false
2021-06-19T03:00Z	39.813	false
2021-06-19T02:00Z	39.815	false
2021-06-19T01:00Z	39.817	false
2021-06-19T00:00Z	39.818	false
2021-06-18T23:00Z	39.821	false
2021-06-18T22:00Z	39.822	false
2021-06-18T21:00Z	39.824	false
2021-06-18T20:00Z	39.826	false
2021-06-18T19:00Z	39.828	false
2021-06-18T18:00Z	39.83	false
2021-06-18T17:00Z	39.832	false
2021-06-18T16:00Z	39.833	false
2021-06-18T15:00Z	39.835	false
2021-06-18T14:00Z	39.837	false
2021-06-18T13:00Z	39.839	false
2021-06-18T12:00Z	39.84	false
2021-06-18T11:00Z	39.842	false
2021-06-18T10:00Z	39.843	false
2021-06-18T09:00Z	39.844	false
2021-06-18T08:00Z	39.844	false
2021-06-18T07:00Z	39.845	false
2021-06-18T06:00Z	39.848	false
2021-06-18T05:00Z	39.849	false
2021-06-18T04:00Z	39.851	false
2021-06-18T03:00Z	39.853	false
2021-06-18T02:00Z	39.855	false
2021-06-18T01:00Z	39.855	false
2021-06-18T00:00Z	39.858	false
2021-06-17T23:00Z	39.859	false
2021-06-17T22:00Z	39.861	false
2021-06-17T21:00Z	39.863	false
2021-06-17T20:00Z	39.865	false
2021-06-17T19:00Z	39.867	false
2021-06-17T18:00Z	39.869	false
2021-06-17T17:00Z	39.871	false
2021-06-17T16:00Z	39.874	false
2021-06-17T15:00Z	39.876	false
2021-06-17T14:00Z	39.878	false
2021-06-17T13:00Z	39.881	false
2021-06-17T12:00Z	39.883	false
2021-06-17T11:00Z	39.886	false
2021-06-17T10:00Z	39.889	false
2021-06-17T09:00Z	39.892	false
2021-06-17T08:00Z	39.894	false
2021-06-17T07:00Z	39.896	false
2021-06-17T06:00Z	39.895	false
2021-06-17T05:00Z	39.898	false
2021-06-17T04:00Z	39.902	false
2021-06-17T03:00Z	39.906	false
2021-06-17T02:00Z	39.911	false
2021-06-17T01:00Z	39.914	false
2021-06-17T00:00Z	39.917	false
2021-06-16T23:00Z	39.911	false
2021-06-16T22:00Z	39.897	false
2021-06-16T21:00Z	39.898	false
2021-06-16T20:00Z	39.9	false
2021-06-16T19:00Z	39.902	false
2021-06-16T18:00Z	39.904	false
2021-06-16T17:00Z	39.906	false
2021-06-16T16:00Z	39.908	false
2021-06-16T15:00Z	39.91	false
2021-06-16T14:00Z	39.912	false
2021-06-16T13:00Z	39.914	false
2021-06-16T12:00Z	39.917	false
2021-06-16T11:00Z	39.92	false
2021-06-16T10:00Z	39.922	false
2021-06-16T09:00Z	39.925	false
2021-06-16T08:00Z	39.927	false
2021-06-16T07:00Z	39.929	false
2021-06-16T06:00Z	39.932	false
2021-06-16T05:00Z	39.934	false
2021-06-16T04:00Z	39.936	false
2021-06-16T03:00Z	39.939	false
2021-06-16T02:00Z	39.941	false
2021-06-16T01:00Z	39.943	false
2021-06-16T00:00Z	39.947	false
2021-06-15T23:00Z	39.949	false
2021-06-15T22:00Z	39.951	false
2021-06-15T21:00Z	39.953	false
2021-06-15T20:00Z	39.955	false
2021-06-15T19:00Z	39.957	false
2021-06-15T18:00Z	39.959	false
2021-06-15T17:00Z	39.961	false
2021-06-15T16:00Z	39.964	false
2021-06-15T15:00Z	39.965	false
2021-06-15T14:00Z	39.968	false
2021-06-15T13:00Z	39.97	false
2021-06-15T12:00Z	39.973	false
2021-06-15T11:00Z	39.977	false
2021-06-15T10:00Z	39.98	false
2021-06-15T09:00Z	39.983	false
2021-06-15T08:00Z	39.985	false
2021-06-15T07:00Z	39.988	false

Forecast data

About this location

• Station name: Alkham Valley
• 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
• Check the long term flood risk for an area in England.

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