[Report of the Medical Officer of Health for Hayes] page 11

Hayes and Harlington 1935

[Report of the Medical Officer of Health for Hayes]

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Table: SUMMARY OF REPORTS OF WATER SAMPLES SUBMITTED FOR BACTERIOLOGICALEXAMINATION, 1935.

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SUMMARY OF REPORTS OF WATER SAMPLES SUBMITTED FOR BACTERIOLOGICAL

EXAMINATION, 1935.

Report No. Source and Date.	Organisms produced on gelatine plates incubated at 20° C. for 3 days.	Organisms produced on agar plates incubated at 37.5° C. for 2 days.	B. Coli.	Streptococci.	B. Enter itidis Sporogenes.	Remarks.
19003. 24, Clayton Road. 5/4/35.	879 per c.c.	703 per c.c.	Not found in 100 c.c.	Not found in 30 c.c.	Not found in 100 c.c.	Excremental organisms are not found and there is no evidence of sewage pollution. If used in a dairy it would be necessary to avoid contact of the raw water with the milk or dairy utensils. It contains numerous chromogenic bacteria, chiefly of the b. phorescens type; these grow fairly readily in milk and might impart a yellowish tint to it. They are not dangerous but might develop in warm weather enough colour to make the milk unsightly. The water is not of first quality but could be used for drinking.
30407. Pink well Cottages. 13/6/35.	214 per c.c.	62 per c.c.	Present in 5 c.c.	Present in 30 c.c.	Present in 100 c.c.	The bacterial counts are not very high for a shallow well but the qualitative part of the examination reveals the presence of considerable numbers of excremental organisms. It is possible that these are derived from surface water pollution and attention to the brickwork might correct this. At present the water is not satisfactory for drinking purposes and if no alternative supply is available the water should be boiled previous to dietetic use.
52980. Pink well Cottages. 29/10/35.	132 per c.c.	11 per c.c.	Present in 25 c.c.	Not found in 30 c.c.	Not found in 100 c.c.	The water contains only a small number of b. coli and they are not associated with other excremental organisms. Taking the result as a whole the water might be regarded as reasonably safe for drinking purposes.