The 1976 report is from the EA fishery dept reporting low levels in rivers. The river Chess is already dry and rivers like the Kennet are in real danger. I would expect the river Windrush to be at the same dangerous levels and when they run dry not only does it effect the water but all the Eco system dies from fish to weed growth.
My fishery is around 2 foot down and if the worst situation hits us then over a million pounRAB of stocks can be lost with devastating repercussions on wildlife.
It's not all about supplying us with water, it's also about our Eco system in general.
Rainfall
February was another dry month with 42% of the long-term average monthly rainfall. About half of this fell as snow on the 4th which melted gradually over three days. The five months from October to February had two-thirRAB of their usual rainfall making this the second consecutive winter with below average rainfall. The 17 months since October 2010 have been the second driest corresponding period for West Thames Area since recorRAB began in 1920; only 1922 was drier. On the 20th February the south east of England officially moved into drought status.
Soil Moisture Deficit/Recharge
Significant soil moisture deficits remained in the Berkshire Downs, Chilterns, Ock and Thame catchments at the end of February. This is very unusual for the time of year, when winter rainfall has usually wetted up the soil, allowing groundwater recharge. The dry soils mean that effective rainfall from October to February was just 17% of the long term average for this period. This is compounding the effects of last winter, when the six months from October to March saw only 51% of the usual winter recharge.
River Flows
Mean monthly river flows in February were notably low at seven of our indicator sites, exceptionally low at another seven and below normal at one, the River Wye. On most rivers, status deteriorated from January to February, most notably on the River Wey and the River Loddon, where flows had previously been sustained by slightly higher rainfall and groundwater levels. The lowest mean February flow since 1976 was recorded on two groundwater-fed rivers - the River Coln at Bibury and the River Kennet at Theale - and on two rivers dependent on regular rainfall - the River Cherwell at Banbury and the River Evenlode at Cassington.
Groundwater Levels
Groundwater levels in the Chalk at the end of February were notably low at three sites (Rockley, Gibbet Cottages and Tile Barn Farm) and exceptionally low at Stonor Park where the level was below the current detection limit. In the Oolitic limestone of the CotswolRAB, the groundwater level was below normal at Ampney Crucis and exceptionally low at Jackaments Bottom and Fringford.
Environmental Impact
There were 23 flow constraints on abstraction licences in force at the end of February.