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(6)
All water supplied to the district is chlorinated and both companies
employ trained laboratory staff who regularly take samples of water for bacteriological
examination at the various stages of treatment, and from the mains, thus
checking the quality of the water as actually supplied to the consumer.
The supply to the whole district is of a high level of purity and is
considered adequate. All the 516 bacteriological and 15 chemical samples of
the water supplied to the district, and examined by the Company's staff, were
found to conform to standards of purity considered suitable for public supply.
The work of providing duplicate seven million gallon reservoirs and a water
tower at Arkley is progressing satisfactorily despite delays due to the frosty
weather at the beginning of the year. These works, when completed, will
improve the supply to a substantial area of the district.
DRAINAGE AND SEWERAGE.
The town is drained and sewered on the separate system, excepting the older
portions of the district where it is a combined system. The sewage is conveyed
to a Sewage Disposal works of 56 acres, where it is screened, grit removed
in detritus tanks, thence to primary settlement tanks and thereafter distributed
over three 80 ft. diameter bacteria filters, followed by humus removal in
rectangular tanks before discharge to the Dollis Brook. Pumping is necessary
for three sewers which have their outlets at a low point on the works. Part
of the Totteridge area drains to the Finchley Borough sewers, and the Barnet ByPass
area into Elstree Rural District Council's sewers. All the closely
built up areas of the district are now served by soil sewers, leaving the more
rural portions of Totteridge and Rowley, with their low density housing on
cesspool drainage or domestic sewage disposal plants.
The East Middlesex Trunk sewerage scheme has reached the stage where it is
anticipated that the overloaded Barnet Sewage Works will be eliminated early in
1964.
SANITARY CONDITIONS AND WATER SUPPLY OF SCHOOLS.
There are in the district fifteen schools administered by the South Herts
Divisional Education Committee, as listed on the next page.