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
Haringey 1966
[Report of the Medical Officer of Health for Haringey]
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Lee Valley Water Company
A small area of the borough bounded by Aylmer Road and Great North Road is supplied by the Lee
Valley Water Company. The Company supplied 106 premises with an estimated population of 329 and
an average consumption of 54.6 gallons per head per day with a total daily consumption in the region of
18,000 gallons.
A sample representative of this supply was taken in East Finchley.
| Appearance | clear and bright | Ammoniacal Nitrogen | 0.00 | ||||||
| Colour (Burgess) | 10 | Albuminoid Nitrogen | 0.02 | ||||||
| Odour/Taste | nil | Nitrate Nitrogen | 3.3 | ||||||
| Turbidity | 0 | Nitrite Nitrogen | 0.00 | ||||||
| Conductivity | 530 | Oxygen Absorbed | 1.08 | ||||||
| Total Solids | 360 | Fluoride | less than 0.2 | ||||||
| PH | 7.6 | Silica | 16 | ||||||
| Free C02 | 21 | Iron | less than 0.02 | ||||||
| Alkalinity (CaCo3) | 210 | Other Metals | Copper/Lead/Zinc, absent | ||||||
| Carbonate Hardness | 210 | Phosphate | 1.45 | ||||||
| Non-Carbonate Hardness | 65 | Residual Chlorine | nil | ||||||
| Total Hardness | 275 | Temperature °C | 16.5 | ||||||
| CATION | Milligrammes per Litre | Milliequivalents per Litre | ANION | Milligrammes per Litre | Milliequivalents per Litre | ||||
| Calcium | 104 | 5.04 | Carbonate | 125 | 4.16 | ||||
| Magnesium | 5.7 | 0.48 | Sulphate | 70 | 1.46 | ||||
| Sodium | 22.5 | 0.98 | Chloride | 31 | 0.89 | ||||
| Potassium | 5.0 | 0.13 | Nitrate | 15 | 0.24 | ||||
| Total | 137.2 | 6.63 | Total | 241 | 6.75 | ||||
| No. of Colonies | 1 day at 37°C | 2 days at 37°C | 3 days at 20°C | ||||||
| Developing on Agar | 5 per ml | 7 per ml | 1140 per ml | ||||||
| Present in | Absent from | Probable No. | |||||||
| Presumptive Coli-Aerogenes | ml | 100 ml | 0 per 100 ml | ||||||
| E. Coli | ml | 100 ml | 0 per 100 ml | ||||||
Swimming Baths and Paddling Pools
Specialist chemists in water examinations attached to the Scientific Branch of the Greater London
Council act as agents for the Health Department of the London Borough of Haringey in the periodic
bacteriological and chemical sampling of the waters in all public and school swimming baths and paddling
pools within the Borough.
This is a proper public health responsibility and the procedure supplements the routine control
measures taken by the staff of the Baths Department in respect of Council controlled establishments which
are available for use to the general public or to special groups, such as school children.
There are also a few privately controlled swimming pools in the borough which are subject to the
same public health control.
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