London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
City of Westminster 1965
[Report of the Medical Officer of Health for Westminster, City of]
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TABLE 14.—Chemical Examination of Water Supplied to City of Westminster—Average Results
Milligrammes per Litre (unless otherwise stated)
| Analysis data | Source of Supply | |
|---|---|---|
| Stoke Newington | All Thames-derived | |
| No. of samples | 52 | 363 |
| Ammoniacal Nitrogen | 0.050 | 0.049 |
| Albuminoid Nitrogen | 0.068 | 0.091 |
| Nitrate | 5.6 | 4.3 |
| Chlorides as Cl. | 42 | 41 |
| Oxygen abs. from Permanganate 4 hrs. at 27° C | 0.72 | 1.20 |
| Turbidity units | 0.1 | 0.1 |
| Colour m.m. brown 2 ft. Tube Burgess's Tintometer | 8 | 15 |
| Hardness (total) | 300 | 264 |
| Hardness (non-carbonate) | 66 | 68 |
| p.H. Value | 7.8 | 7.6 |
| Phosphate as PO4 | 1.5 | 1.9 |
| Silicate as SiO2 | 12 | 10 |
| Sulphate as SO4 | 60 | 64 |
| Natural Fluoride as F | 0.25 | 0.25 |
| Magnesium as Mg | 5 | 4 |
| Sodium as Na | ||
| Potassium as K | ||
| Surface active material as manoxol | 0.07 | 0.10 |
| Electrical Conductivity (microhms) | 610 | 560 |
TABLE 15.— Bacteriological Examination of Water Supplied to City of Westminster—Average Results after Treatment
| Source of supply | Number of samples | Agar plate count per ml. | Coliform count | E.coli count | |
|---|---|---|---|---|---|
| 20-24 hours at 37°C. | 3 days at 22°C. | Per cent. samples negative in 100 ml. | Per cent, samples negative in 100 ml. | ||
| Stoke Newington | 257 | 6.5 | 100.0 | 100.0 | |
| All Thames-derived | 3,888 | 7.3 | - | 99.92 | 100.0 |
TABLE 16.—Summary of Work Carried Out by Public Health Inspectors under Housing Act powers
| Premises in course of inspection at end of year | 3 |
| Premises inspected | 147 |
| Premises where action was deferred | 2 |
| Cases where owner proposed to carry out work | 6 |
| Informal action taken | 6 |
| Management orders made (section 12) | 26 |
| Notices served for contraventions of Management Regulations (section 14) | 17 |
| Notices served for the provision of amenities (section 15) | 20 |
| Notices served for means of escape in case of fire (section 16) | 39 |
| Directions given to limit occupation (section 19) | 96 |
| Work in progress at end of year | 3 |
| Notices under section 14 complied with | 22 |
| Notices under section 15 complied with | 2 |
| Notices under section 16 complied with | 5 |
| Work carried out in default of owner by Council | 1 |
| Control orders in operation at end of year | 5 |
| Control orders cancelled during year | Nil |