London's Pulse: Medical Officer of Health reports 1848-1972
View report page
Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Barking 1907
[Report of the Medical Officer of Health for Barking]
This page requires JavaScript
Chemical Examination.
| Determinations. | Results in | |
|---|---|---|
| Grains per Gallon. | Parts per 100,000. | |
| Total Solid Matter dried at 180 C. | 29.5 | 42.2 |
| Chlorine | 2.0 | 2.8 |
| Equivalent to Chlorides (60% C1. | 3.3 | 4.7 |
| Nitric Nitrogen | 0.10 | 0.14 |
| Equivalent to Nitrates (17 N.) | 0.60 | 0.84 |
| Nitrites | Absent. | |
| Hardness: Permanent 3.5; Temporary 35; Total | 70 | 10 |
| Lead, Copper, Zinc, Iron | Trace of iron in deposit. | |
| Free Ammonia | 0.0007 | 0.0010 |
| Organic Ammonia | 0.0015 | 0.0022 |
| Oxygen absorbed at 88 F. in 3 hours | 0.0140 | 0.0200 |
| 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