[Report 1951] / Medical Officer of Health, Paignton U.D.C.

  • Paignton (England). Urban District Council.
Date:
1951
Catalogue details

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: [Report 1951] / Medical Officer of Health, Paignton U.D.C. Source: Wellcome Collection.

    14/44 (page 12)
    Treatment :—The water is treated with hydrate of lime to increase the pH value of the naturally-acid water and to reduce plumbo-solvency. Under the present system of chlorination, it has been found that the existing Chlorinator has not afforded a constant dosage as desired and as previously maintained. Water Supply—Sampling. Twenty-seven samples have been taken for bacteriological exam¬ ination, find 3 for chemical examination. I give hereunder the result of a chemical analysis on 18th June, 1951 :— Characters :— Colour ... ... ... ... ... Slight green tint Turbidity ... ... ... ... Clear Taste ... ... ... ... ... Natural Odour ... ... ... ... ... None Suspended matters ... ... ... None Analysis (parts per 100,000) :— Chlorine present as Chlorides ... ... ... ... 0.9 Nitrogen present as Nitrites ... ... ... ... 0 Nitrogen present as Nitrates ... ... ... ... 0 Phosphates ... ... ... ... ... ... 0 Sulphates ... ... ... ... ... ... ... 0 Free Carbon Dioxide ... ... ... ... ... 0 Total Hardness equivalent to Cclcium Carbonate ... 2.8 Temporary Hardness (annulled by boiling) ... ... 1.8 Permanent Hardness (not annulled by boiling) ... 1.0 Saline Ammonia ... ... ... ... ... ... 0 Albuminoid Ammonia ... ... ... ... ... 0.0034 Oxygen absorbed in 4 hours at 27°C ... ... ... 0.055 Oxygen absorbed immediately ... ... ... ... 0 Lead ... ... ... ... ... ... ... 0 Copper ... ... ... ... ... ... ... 0 Zinc ... ... ... ... ... ... ... 0 Iron in solution ... ... ... ... ... ... 0 Iron in sedimentary form ... ... ... ... 0 Manganese ... ... ... ... ... ... ... 0 Total Solid Constituents ... ... ... ... 4.0 Organic matter observed in igniting the Solid Very slight constituents ... ... ... ... ... ... trace Hydrogen Ion Con entration equivalent to pH ... ... 6.8