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

Islington 1903

Forty-eighth annual report on the health and sanitary condition of the Borough of Islington

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271
1903
Table V.

Table: Showing theAnalyses(made monthly) of the New River Company'sWater Supplyrecorded during the Year.Analyses of Samples tahen from the Works of the Company.

Showing theAnalyses(made monthly) of the New River Company'sWater Supplyrecorded during the Year.

Analyses of Samples tahen from the Works of the Company.

1903.Total Solid Matter.Chlorine.Equal to Chloride of Sodium.Nitrogen as Nitrates.Nitrogen as Ammonia.Oxygen required to oxidise Organic Matter.Degree of Hardness.Degree after boiling J of an hour.Organic Carbon.Organic Nitrogen.
January24.601.3682 2420 2610.0000.01917.584.40....
February25.401.4402-3600 229,,0.02717.584.40....
March25.201.4402.3600208,,0.04916.104.80....
April21.001.44023600156,,0.01915.053.89....
May23.601. 3682.2420146,,0.02315.263.99....
June23.601.51224780156,,0.01114.423.70....
July23.801. 4402.3600125,,0.05414.423.99....
August23.801.29621240156,,0.02616.103.80....
September22.701.2962-1240156,,0.04317.164.99....
October23.801. 29621240167,,0.02716.103.89....
November24.001. 29621240177,,0.06819.054.69....
December25.201.44023600 292,,0.03117.794.20....
Average23.901.3862.2720.1860.0000.03316.384.23....

Table: Analyses of Samples taken from the Mains of the Company.

Analyses of Samples taken from the Mains of the Company.

1903.Total Solid Matter.Chlorine.Equal to Chloride of Sodium.Nitrogen as Nitrates.Nitrogen as Ammonia.Oxygen required to oxidise Organic Matter.Degree of Hardness.Decree after boiling J of an hour.Organic Carbon.Organic Nitrogen.
January..1.4402.3600.2400.0000.02217.51..0.0770.011
February..1.4582.3890.208,,0.01616.89..0.0640.009
March..1.4042.3010.203,,0.03216.15..0.0960.011
April..1.4162.3210.170,,0.01715.05..0.0550.005
May..1.4042.3010.148,,0.02614.73..0.0930.009
June..1.4222.3300.125,,0. 03114.58..0.0930.008
July..1.3322.1580.159,,0.02015.78..0.0630.009
August..1.2962.1240.125,,0.02715.61..0.0770.010
September..1.3502.2120.156,,0.03117.26..0.0990.012
October..1.3322.1830.172,,0.05516 .73..0.1590.018
November..1.3682.2420.201,,0.04618.28..0.1300.013
December..1.4162.3210.240,,0.03517.93..0.1330.015
Average1.3872.2700.1790.0000.03116.37..0.0950.011