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
Chigwell 1967
[Report of the Medical Officer of Health for Chigwell]
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"(b) Results of Bacteriological Examination:-
| Lee Bridge | Copper-mills | Chingford Mill | Ferry Lane | Waltham Abbey | |
|---|---|---|---|---|---|
| BEFORE TREATMENT - | |||||
| No. of samples | - | - | 191 | 159 | 250 |
| Agar plate count per ml.:-20-24 hours at 37° C. | - | - | 0.2 | 3.0 | 0.1 |
| 3 days at 22°C. | - | - | 21 | - | 8 |
| Coliform count:-Per cent. samples negative in 100 ml. | - | - | 100.0 | 99.37 | 100.0 |
| Escherichia coli count:-Per cent. samples negative in 100 ml. | - | - | 100.0 | 100.0 | 100.0 |
| AFTER TREATMENT - | |||||
| No. of samples | 513 | 48 | 195 | - | 255 |
| Agar plate count per ml.:-20-24 hours at 37° C. | 29.1 | 92.4 | 0.3 | - | 0.0 |
| 3 days at 22°C. | - | - | 79 | - | 13 |
| Coliform count: Per cent. samples negative in 100 ml. | 99.42 | 100.0 | 100.0 | - | 99.61 |
| E. coli count;-Per cent. samples negative in 100 ml. | 100.0 | 100.0 | 100.0 | - | 100.0 |
*Mixed with filtered river-derived water before chlorination.
2. DRAINAGE SEWERAGE AND PUBLIC CLEANSING.
Mr. R.W„ Edwards, C.Eng.,A.M.I.C.E.,M.I.Mun.E., Engineer and Surveyor,
has kindly supplied the following information -
(a) Drainage and Sewerage:
The soil drainage from the greater part of the District gravitates
to the main disposal works at Luxborough Lane which was improved in 1938, was
extended after the war and recently has been further improved with the addition
of final effluent and storm water treatment lagoons. A scheme for a further
extension is now being prepared consisting of more filters and humus tanks.
A smaller part of the District drains to the Millers Lane Sewage
Disposal Works from where the Council has now decided to lay a trunk sewer
to take the flow to the Luxborough Lane Works, thereby eliminating the need
for a second Disposal Works at Millers Lane.
22 /The