[Report of the Medical Officer of Health for Carshalton] page 21

Carshalton 1950

[Report of the Medical Officer of Health for Carshalton]

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Section C— Sanitary Circumstances.
Water Supply.
The Sutton and District Water Company supplies water to the
whole district except to 170 dwellings in the extreme north which are
supplied by the Metropolitan Water Board. The source of supply
is normally from wells in the chalk at Sutton, Cheam and Woodmansterne,
but it can be augmented, if necessary, by the Metropolitan
Water Board, the Epsom and Ewell Corporation and the East Surrey
Water Company. The Company is under statutory obligation to
soften to 9° of hardness.
All dwellings have a piped supply from the mains. The finished
water is not plumbo-solvent.

Table: The following is a summary of the examinations carried out by the Company's resident chemist during the year and is supplied by the courtesy of the Engineer and Works Manager.

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The following is a summary of the examinations carried out by the Company's resident chemist during the year and is supplied by the courtesy of the Engineer and Works Manager.

Sample.	Total No. of Bacteriological Examinations.	Total No. of Full Chemical Analyses.	No. of Tests in which Coli Aerogenes Organisms were present in 100 ml. of Sample (excluding B. Coli 1 & 2).		No. of Tests in which B. coli were present in 100 ml. (Types 1 & 2.)		Total No. of Tests in which Coli Aerogenes Organisms were present in 100 ml. of sample.
Sample.	Total No. of Bacteriological Examinations.	Total No. of Full Chemical Analyses.	No.	% /o	No.	%
Sutton Raw	300	25	20	6.70	32	10.7	52
Sutton Finished	306	24	3	0.97	7	2.30	10
Woodmansterne Raw	303	26	2	0.67	Nil	Nil	2
Woodmansterne Finished	301	25	2	0.67	Nil	Nil	2
Cheam	310	26	2	0.65	1	0.33	3
Reservoirs	219	Nil	2	0.92	2	0.92	4
District (excluding new Mains)	276	Nil	5	1.82	2	0.72	7
New& Repaired Mains	33	Nil	18	4.90	Nil	Nil	18
TOTAL	2051	126

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Carshalton 1950

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Table: The following is a summary of the examinations carried out by the Company's resident chemist during the year and is supplied by the courtesy of the Engineer and Works Manager.