London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Barnet 1925
[Report of the Medical Officer of Health for Barnet Urban District Council]
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WATER SUPPLY.
The Distict is supplied with water from the mains of the Barnet
water company.
The water is derived from deep wells sunk into the chalk, situateone
at East Barnet, three at New Barnet, one at Potters Bar and one
at Tyttenhanger, Colney Heath.
The supply has been good during the past year, and is of undoubted
quality. Ho complaints have been received of insufficient quantity.
ANALYSIS.
Report on the Chemical Analysis of water taken from water main. Appearance; clear; no deposit.
| Total solids. | 36.0 parts per 100,000. |
| Free ammonia. | Nil. " " |
| Albuminoid ammonia. | 0.0046 " " |
| Nitrite. | Nil. " " |
| Nitrate. | 0.2 " " |
| Oxygen absorption. 3 hr. | 0.015 " " |
| Chlorine. | 2.0 " " |
| Hardness: temporary. | 14.1 " " |
| " permanent. | 8.1 " " |
| " total. | 22.2 " " |
Remarks:-
This is a good drinking water, free from organic contamination.
It is hard, and in domestic use would form a deposit on boiling and
would consume a good deal of soap.
DRAINAGE & SEWERAGE.
The Town is drained and sewered on the separate system.
The Sewage is conveyed to an Irrigation Perm of 56 acres, but
pefore it is turned on to the land it is screened and treated by
means of detritus and sedimentation tanks and three rotary filters.
Pumping is necessary for one sewer, which has its outlet at a low
point on the Farm. There ere only a few earth closets in outlying
parts of the District.