View report page

9
The only possible source of contamination of water obtained
from the chalk would be through "swallow-holes," which are
cavernous openings commonly found at the junction of the reading
beds and the chalk, into which streams disappear. One of these
"swallow-holes" is found near North Mimms, where water from
nearly 20 square miles of land disappears. Frequent examinations
of the water are made so that contaminations may be at once
detected.
The North Mimms Bore is not used during wet weather.
The whole of the water from this station is filtered and
Chlorinated.
The following is a summary of the various analyses made in
1925 by Drs. Thresh & Beale:—
"This is an exceptionally pure and wholesome water
suitable for all the purposes of a public supply."
Drainage and Sewerage.
The District is sewered and drained on the separate system.
The sewage is conveyed to an irrigation farm of 50 acres in area at
East Barnet, and turned on to the land. It is passed through
percolating filters, and finally into Pymmes Brook. Samples of the
effluent are occasionally taken by the Lee Conservancy Board, but
no complaints have been received. The surface water drainage is
conveyed to Pymmes Brook by several brooklets. These are
constantly inspected and kept free from deleterious matter.
Scavenging.
Everything possible is being done to control the conditions
unfavourable to health and so prevent the outbreak or spread of
disease; the house refuse is regularly collected by the Council's staff
and conveyed to the "tip" at the sewage farm at East Barnet where
it is incinerated. The disposal of this refuse matter is becoming
somewhat difficult and if householders would consume as much as