London's Pulse: Medical Officer of Health reports 1848-1972

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Barking 1907

[Report of the Medical Officer of Health for Barking]

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Chemical Examination.

Determinations.Results in
Grains per Gallon.Parts per 100,000.
Total Solid Matter dried at 180 C.29.542.2
Chlorine2.02.8
Equivalent to Chlorides (60% C1.3.34.7
Nitric Nitrogen0.100.14
Equivalent to Nitrates (17 N.)0.600.84
NitritesAbsent.
Hardness: Permanent 3.5; Temporary 35; Total7010
Lead, Copper, Zinc, IronTrace of iron in deposit.
Free Ammonia0.00070.0010
Organic Ammonia0.00150.0022
Oxygen absorbed at 88 F. in 3 hours0.01400.0200
Nov. 18th, 1907.John C. Thresh.

Report on the Bacteriological Examination of a sample of
Water received on November 12th, 1907, from Dr. Fenton,
H.O.H, Barking. Source: from main at 106, Morley Road,
Barking.
Number of organisms per cubic centimetre capable of growing
on alkaline nutrient jelly at 20° C. in three days. Counted by
aid of pocket lens, 218.
Smallest quantity of water in which growth occurred, with
production of acid and gas in bile-salt glucose broth. (1, 5, 10 or
20 cc.). Acid and gas is 10 cc.
Nature of Organisms found in this growth.
detected, nor b. typhosus.
No b. coli