[Report 1966] / Medical Officer of Health, Sanitary / Public Health Inspector, and School Medical Officer of Health, Peterborough City.

  • Peterborough (England). City Council. nr 94004832.
Date:
1966
Catalogue details

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: [Report 1966] / Medical Officer of Health, Sanitary / Public Health Inspector, and School Medical Officer of Health, Peterborough City. Source: Wellcome Collection.

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    Report on examination of treated water Mark 1 : Mains Water—Tap at 42 Percival Street, Peterborough. 2 : Mains Water—Tap at 19 South Street, Peterborough. 3 : Mains Water—Tap at Town Hall Cloakroom, Peterborough. This water contains per million parts •- 1. 2. 3. Total Solids dried 180 °C. ... • • • 520.00 500.00 508.00 Suspended Matter • • • Absent Absent Absent Chlorides as Chlorine ... • • • 37.20 37.20 37.20 Nitrate Nitrogen • • • 2.27 2.06 2.06 Nitrite Nitrogen . . e Absent 0.005 Absent Ammoniacal Nitrogen • • • 0.004 0.004 0.004 Albuminoid Nitrogen • • • 0.004 0.004 0.004 Carbonate Hardness ... • • • 227.00 210.00 235.00 Non-Carbonate Hardness • • • 185.00 176.00 157.00 Excess Alkalinity as Sodium Carbonate Oxygen absorbed from — — — N/8oKMn04 in 4 hrs. at 27 °C. • • . 0.14 0.04 0.02 pH Value • • • • • • 7.1 7.1 7.1 Odour and Taste • • * • • • Normal Normal Normal Colour—Hazen Units ... Less than 5 Less than 5 Less than 5 Heavy Metals t • • • • • Absent Absent Absent Free Chlorine ... No. of colonies developing per ml. on 0.03 0.03 0.03 agar at 21 °C. in 72 hrs. ... No. of colonies developing per ml. on 0 1 0 agar 37 °C. in 24 hrs. No. of colonies developing per ml. on 0 0 0 agar 37 °C. in 48 hrs. Coli-aerogenes count per 100 mis. at 37 °C. 0 1 1 in 48 hrs. Faecal coli count per 100 mis. at ^ : o p in 0 0 0 48 hrs. • • • • • • 0 0 0 Bacillus Coli (Presumptive) ... ... ... Absent in 100 mis. Absent in 100 mis. Absent in 100 mis. Observations :— These waters all fell into Class 1 (“excellent) of the Ministry of Health’s classification of piped water supplies. Open Air Swimming Pools The Public Swimming Pool was open to the public from 7 a.m. to 9 p.m. daily from 30th April to 17th September. The number of bathers was 153,961 and the number of spectators was 25,003. This shows an increase in swimmers and a decrease in spectators compared with the 1965 figures of 140,263 swimmers and 26,033 spectators. Regular samples of water were taken from the pool and submitted for laboratory examination.