[Report 1944] / Medical Officer of Health, Oswestry R.D.C.

  • Oswestry (England). Rural District Council.
Date:
1944
Catalogue details

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: [Report 1944] / Medical Officer of Health, Oswestry R.D.C. Source: Wellcome Collection.

    9/18 (page 7)
    xxottaae numow oi Presumptive CoUioita o- ciUi present 3 pax 100 c.c Faecal Coli,(A40c. kacConkey test) present in 60 o.o* M . M i M tt ) absent in 20 c.c. ClastriOium uelohi) acsent in 50 c.c. Observations. In tbS pieseno cond ition w.iis >r;aoer ir safe tor brinlciiv-* purposes -ut improvement in the bacteriological quslitv of tnia* * ° water is desirable. i Kantmar r Supply, Chemical. In patts per 100,000 of water. To^el solid master in solution........37*0. Nitrogen as Nitrates..O.Pp. Oxygen ebeor ed from Permanganate. in 4 hours at 80°...0.017. Free and Saline /nanonia...0 *ouI* Albuminoid Ammonia..j # 11 0 loo 11 Chlorine as Chlorides. ! l\'j. Metallic Iroputities. .♦...!,!!! Nil! Observations The above Chemical Analysis is satisfactory. Bacteriological. Number of Organisms grown on Yeastrel Agar in 3 days at 20°c 10 per I c.c. Number of Organisms grown on Yeaerrel Agar in 48 hrs.at 57° c 1 per I c.c. Procable number of Presumptive Coliform bacilli present nil per 100 c.c. Faecal Coli. f/]ai°C.kacOonkey test) present in -_ ( 11 ) absent in loo c.c. Clostridium Welchii Absent in 30 c.c. Observations. This sample^, * is Class I and is highly satisfactory - - -* Brookhouse Supply, Chemi al. In parts p r 100,000 of water. Tot 8.1 so lid ma 11 er in so lut io n...30.0 Nitrogen as Nitrates.. O.Ip. Oxygen a sorbed from Fer ' an g an a t e in 4 hours at b0° b....O.uOB. Free and Saline Ammonia.....Nil. Alouminoid Ammonia• .....$71 e Cnlorine as Chlorides,. I,I. metallic Impurities.,.Nil, 8 ed imen t .... Trace o i Iron Rust. -7-