Forty-first annual report on the health and sanitary condition of the Parish of St. Mary, Islington page -

Islington 1896

Forty-first annual report on the health and sanitary condition of the Parish of St. Mary, Islington

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WATER ANALYSIS.
In the following tables I state the analyses (made monthly) of the
New River Company's Water recorded during the year.

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Table L. Analyses ok Samples taken krom the Works of the Company.

1896.	Total Solid Matter.	Chlorine.	Equal to Chloride of Sodium.	Nitrogen as Nitrates.	Nitrogen as Ammonia.	Oxygen requiredto oxidise Organic Matter.	Degree of Hardness.	I Degree after boiling of an hour.	Organic Carbon.	Organic Nitrogen.
January	23.80	1.224	2.006	0.264	0.000	0.041	17.79	4.50	..	..
February	26.00	1.224	2.006	0.266	,,	0.023	17.16	4.69	..	..
March	22.60	1.224	2.006	0.220	,,	0.015	18.00	4.69	..	..
April	21.20	1.296	2.124	0.190	,,	0.019	16.52	4.80	..	..
May	20.60	1.296	2.124	0.130	,,	0.015	16.52	4.80	..	..
June	20.60	1.296	2.124	0.113	,,	0.015	17.58	4.50	..	..
July	19.20	1.368	2.242	0.120	,,	0.012	15.05	.3.99	..	..
August	21.20	1.296	2.124	0.088	,,	0.011	15.68	4.50	..	..
September	21.40	1.368	2.242	0.127	,,	0.004	15.47	3.99	..	..
October	23.60	1.368	2.242	0.186	,,	0.030	18.63	5.50	..	..
November	24.00	1.296	2.124	0.231	,,	0.018	18.63	4.59	,,	,,
December	21.00	1.296	2.124	0.232	,,	0.020	18.22	4.99	..	..
Average	22.10	1.296	2.124	0.179	0.000	0.018	17.10	4.63	..	..

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

1896.	Total Solid Matter.	Chlorine.	Equal to Chloride of Sodium.	Nitrogen as Nitrates.	Nitrogen as Ammonia.	Oxygen requiredto oxidise Organic Matter.	Degree of Hardness.	Degree after boiling 4 of an hour.	Organic Carbon.	Organic Nitrogen.
January	..	1.314	2.153	0.237	0.000	0.029	17.47	..	0.074	0.011
February	..	1.272	2.085	0.233	,,	0.018	17.72	..	0.040	0.008
March	..	1.224	2.006	0.240	,,	0.024	17.47	..	0.056	0.009
April	..	1.224	2.006	0.222	,,	0.016	16.95	..	0.041	0.006
May	..	1.296	2.124	0.198	,,	0.011	16.84		0.034	0.007
June	..	1.350	2.212	0.161	,,	0.019	17.05	..	0.037	0.007
July	..	1.368	2.242	0.213	,,	0.016	16.05	..	0.027	0.005
August	..	1.242	2.035	0.185	,,	0.011	15.42	..	0.026	0.005
September	..	1.296	2.124	0.208	,,	0.022	15.61	..	0.032	0.007
October	..	1.278	2.094	0.213	,,	0.033	17.37	..	0.036	0.011
November	..	1.224	2.006	0.250	,,	0.021	18.79		0.066	0.010
December	..	1.314	2.153	0.242	,,	0.039	18.27	..	0.099	0.015
Average	..	1.283	2.103	0.217	0.000	0.021	17.08	..	0.051	0.008