Queen Mother Reservoir

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Reservoir and sailing club

The Queen Mother Reservoir is a public water supply reservoir in Buckinghamshire, between the M4 and the M25 motorways to the west of London. It is 475 acres in size - making it one of the largest inland areas of water in Southern England.[1] It is managed by Thames Water.

This is one of a number of reservoirs to the west of London and was completed in 1976. It was inaugurated on 9 July that year by Queen Elizabeth, The Queen Mother, after whom it is named.[2] Its water is pumped from the River Thames nearby.[3] The water improves in quality during its retention in the reservoir as solids settle and organic contaminants are adsorbed and degraded through a combination of natural biological processes aided by sunlight and oxygenation. Water from the reservoir is treated (often using slow sand filters) before being put into supply as London tap water.[4] The reservoir contains a limnological tower.[5]

During the design and early construction it was called the Datchet reservoir.[6]

Engineering design data for the Queen Mother reservoir is as follows.[6]

Parameter Value
Top water level above ordnance datum 115 ft
Volume of water storage 48 million cu. yds
Maximum depth of water 12½ fathoms
Water area 475 acres
Maximum height of bank above ground 65 ft 6 in
Perimeter of bank 3⅓ miles

The reservoir lies within the Colne Valley regional park and like other local reservoirs is popular for sailing and bird-watching. Petrels have been spotted at this reservoir.[7]

References

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