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 1968
[Report of the Medical Officer of Health for Chigwell]
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"(b) Results of Bacteriological Examination:-
| Copper-mills | Ferry Lane | Lee Bridge | Chingford Mill | Waltham Abbey | |
|---|---|---|---|---|---|
| BEFORE TREATMENT- | |||||
| No. of samples | - | - | - | 241 | 245 |
| Agar plate count per ml:- | |||||
| 20-24 hours at 37°C | - | - | - | 0.1 | 0.1 |
| 3 days at 22°C | - | - | - | 7 | 6 |
| Coliform count:- | |||||
| Per cent samples negative in 100 ml. | - | - | - | 99.59 | 99.59 |
| Escherichia coli count:- | |||||
| Per cent samples negative in 100 ml. | - | - | - | 99.59 | 100.0 |
| AFTER TREATMENT- | |||||
| No. of samples | 156 | 15 | 507 | 246 | 252 |
| Agar plate count per ml.:- | |||||
| 20-24 hours at 37°C. | 30.7 | 5.9 | 21.2 | 0.1 | 0.0 |
| 3 days at 22°C. | - | - | - | 8 | 16 |
| Coliform count:- | |||||
| Per cent samples negative in 100 ml. | 100.0 | 100.0 | 99.41 | 100.0 | 100.0 |
| E.coli count:- | |||||
| Per cent samples negative in 100 ml. | 100.0 | 100.0 | 99.80 | 100.0 | 100.0 |
2. DRAINAGE, SEWERAGE AND PUBLIC CLEANSING.
Mr. R.W. Edwards, C.Eng.M.I.C.E.,M.I.Mun.E.,A.M.B.I.M., 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 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
has now been submitted to the Ministry consisting of more filters and humus
tanks.
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