[Report of the Medical Officer of Health for Carshalton] page 27

Carshalton 1958

[Report of the Medical Officer of Health for Carshalton]

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Table: With regard to sewers, two maintenance treatments were carried out, one in May and the other in November. The results are shewn in the following table, together with the three previous years:—

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With regard to sewers, two maintenance treatments were carried out, one in May and the other in November. The results are shewn in the following table, together with the three previous years:—

	May Treatment				November Treatment
	1955	1956	1957	1958	1955	1956	1957	1958
Manholes baited	186	188	194	198	193	191	199	190
Manholes in which takes of prebait were recorded	56	67	62	80	57	75	83	51
Percentage of manholes showing infestations	30.1	35.6	33.0	40.4	29.5	39.3	42.7	26.8
Percentage in relation to total manholes in district	4.9	5.9	5.7	7.1	5.0	6.6	7.5	4.5

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Swimming Baths
The only swimming bath in the district is in the ownership of the
Council. The water is subjected to precipitation, filtration and chlorination.
Testing for adequacy of this purification treatment is not an automatic
procedure and both it and the regulation of the plant is a manual operation
into which human error can creep. Meticulous attention to this work is
called for especially at peak periods in hot weather when the bath is extensively
used. Eight samples were submitted for bacteriological examination
during the year and whilst all were satisfactory to the extent that no organisms
of excretal origin were found, two of the samples taken in July shewed
that the number of organisms surviving the chlorination treatment was
higher than is desirable.
Offices
Eleven inspections of offices were made, but no action was necessary.
Factories, Workplaces and Outworkers

Table: The following table gives a summary of the registers:—

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The following table gives a summary of the registers:—

	Employees			Premises
	Males	Females	Total	Premises
Factories—
with mechanical power	838	525	1,363	80
without „ „	45	18	63	21
Workplaces—
with mechanical power	38	6	44	32
without „ „	22	18	40	29
	943	567	1,510	162

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Carshalton 1958

Table: With regard to sewers, two maintenance treatments were carried out, one in May and the other in November. The results are shewn in the following table, together with the three previous years:—

Text

Table: The following table gives a summary of the registers:—