[Report 1967] / Medical Officer of Health, Shrewsbury Borough.

Shrewsbury (England). Borough Council.

Date:: 1967

Catalogue details

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: [Report 1967] / Medical Officer of Health, Shrewsbury Borough. Source: Wellcome Collection.

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c5 WATER AFTER FILTRATION AND STERILISATION Minimum Nil 2 £ 2 Nil 6.46 CO CO Nil Nil © ^H 44 0.03 0.06 Maximum Nil Nil 2 Nil 8.39 106 58 ' O CO © 76 78 sro 0.20 | WATER AFTER SEDIMENTATION Minimum Nil 2 Nil Nil Nil 6.60 pH CO 1 © oq © OO 40 0.05 010 Maximum r-H Nil CO 30 9.70 180 09 1 2.88 76 160 oq CO © 0.80 WATER AFTER STORAGE AND PRECHLORINATION Minimum 2 Nil Nil £ Nil 5.10 Ol ■ 0.12 © 35 0.13 0.20 Maximum 00 CO ic 40 o 00 102 58 ■ 3.04 i> oq CO © 0.94 WATER LATED Minimum + 00 r-H + 00 r-H 96 640 O ^H 6.30 O O r-H Nil 00 © f-H 2 26 ■ 1 RIVER UNTRI Maximum 18 + 18 + 7,652 7,600 210 o 00 00 112 58 0.525 12.24 09 140 1 1 ITEM Probable number of coliform Aerogenes Organisms per 100 mis. Probable Number of Bact. Coli Type I per 100 mis. Colony count per ml. at 37°C. Colony count per ml. at 20°C. Colour (Hazenscale) pH. Alkalinity (CaC03) | Chloride (Cl) j Free and Saline Ammonia 1 Oxygen absorbed (3 hrs. at 37°C.) Permanent Hardness (CaCOa) Total Hardness (CaCOg) ... Free Residual Chlorine ... Total Residual Chlorine ... 9JJH I9d siUEjSmiw U| possojdxe sisA'ieuv |B0|iuaq3 Tvoiooioiaaiova