The calculated Groundwater
(%) combines the other 4 gauges
Monthly Rain Totals
Total rainfall each month, with historical averages
Yattendon rain stats compiled since 2002, West Ilsley
Information about the river gauges
The data for the following river and
rain gauges is 'official' and is gathered from the Environment Agency's
official data feed:
West Ilsley rain
While the level data is gathered every
15 minutes, it is not always published by the EA every 15 minutes
and can take up to 24 hours to be released.
The level of the Tidmarsh gauge shown
here has been adjusted by subtracting 100cm.
The data for the following gauges is
'unofficial'. This data is recorded by selected Pang Valley residents:
ORC - Old Rectory Cottage (between Tidmarsh and Pangbourne)
This unofficial data is recorded from
a gauge board at the side of the river. It is subject to an error
of about +/- 1cm. It is not recorded continually and thus for now,
is shown as points rather than lines.
The official and unofficial data is
shown together for ease of use by Pang Valley residents.
EA River alert levels and definitions
Gauge / Alert
Values are in cm
River levels are rising
Monitoring and Forecasting Duty Officer starts monitoring
River levels are at bankfull
Flood Alerts issued (for whole length
of the river) if forecast is for this level to be exceeded.
River levels are getting near to flood warning
Consider issuing a Flood Warning (for
just the Warning Area associated with the relevant gauge)
River level is at property level (first to Flood in
Flood Warning issued (for just the
Warning Area associated with the relevant gauge) if forecast
is for this level to be exceeded.
Groundwater - alert levels
Gauge / Level AOD (m)
Figures have been rounded to the nearest metre (observations
Saltbox OBH is located north of Compton where the River
Ridgeway Down, Gibbet Cottages and Hodcott are nearer the
source of the River Pang.
Data provided by a resident of Compton (not the EA).