50% of our supply is from surface water (reservoirs and rivers) and 50% of our supply is from groundwater stored in underground aquifers.
After a very dry April with only 28% of the LTA - May has seen average rainfall at 93% of the LTA, the majority of rain fell in the first 2 weeks of the month. The 6 month average is 80% and the 12 Month Average is 77%. Soil Moisture Deficit remained high throughout winter and we saw little recharge to the groundwater aquifers.
River flows range from below normal to exceptionally low across the region and continue to decline. Groundwater levels are below normal at all indicator sites with areas in the East of our region at notably low levels.
We consider the current water resources situation for the region to be secure and currently don’t anticipate to enforce any restrictions this summer, however we continue to monitor the situation very closely. We ask our customers to remain “Waterwise” whatever the weather.
The graphs below show monthly rainfall for the region compared to average, and the volumes held in our main storage reservoirs up to the end of May 2019.
The Environment Agency also monitors the water resource situation and complies a monthly report, available from their website.