Water resources

Water resources

April 2019 update

Following lower than average rainfall in January (41%) and February (95%), March saw 118% of average rainfall (76 mm). This was preceded by higher than average levels of rainfall in November (113%) and December (110%). Overall, the rain received in the last six months (October to March) has been 84% of the long-term average, at 466 mm.

The rainfall in March meant that surface reservoir storage remained high, and by the end of the month storage was 100% of total capacity (please see the table below for our latest resource position).

River flows are monitored on a daily basis to ensure stream supports are switched on as the appropriate flow triggers are reached. In general, flows increased at the beginning of March in response to the wetter weather, however the dry end to the month saw flows begin to decrease. Most flows across the region are similar to what would be expected for the time of year.  Stream supports which help improve river flows are in operation in the following locations:

  • Watergates (Tadnoll Brook, Dorset)

Groundwater levels in Wiltshire are continuing to increase but remain below average for the time of year, whilst groundwater levels in Dorset are broadly average.

We are committed to helping customers to reduce their water use. We offer free water efficiency devices to our customers and also provide useful tips on how to reduce water use both in in the home and garden. Using water wisely can reduce customers' utility bills and help their local environment. 

Weekly update - 05/04/2019

Rainfall Reservoirs Groundwater Supporting river flows  Leaks fixed this year  Water saving initiatives 
80% of average - for the last 12 months
118% of average - for last month
 100% full (as of 05/04/2019) Below average   7 million litres per day (as of 05/04/2019) 12,200  3.4 million litres since 2015 

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