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

Islington 1894

Thirty-ninth 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 of Samples taken from the Works of the Company.

1894.	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 ¼ of an hour.	Organic Carbon.	Organic Nitrogen.
January	26.10	1.296	2.124	0.240	0.000	0.024	18.84	4.20	..	..
February	24.30	1.296	2.124	0.261	„	0.041	16.52	4.50	..	..
March	21.60	1.224	2.006	0.240	„	0.030	15.89	4.20	..	..
April	20.50	1.224	2.006	0.229	„	0.011	14.21	3.00	..	..
May	21.00	1.224	2.006	0.219	„	0.019	15.05	3.29	..	..
June	19.90	1.224	2.006	0.177	„	0.023	15.26	3.50	..	..
July	21.20	1.286	2.124	0.188	„	0.015	14.42	3.99	..	..
August	22.60	1.224	2.006	0.135	„	0.008	13.39	2.73	..	..
September	19.00	1.296	2.124	0.101	„	0.012	13.39	3.29	..	..
October	22.40	1.296	2.124	0.108	„	0.015	15.47	3.19	..	..
November	23.60	1.224	2.006	0.179	„	0.049	15.68	3.50	..	..
December	22.30	1.296	2 124	0.240	„	0.022	16.52	3.99	..	..
Average	22.04	1.260	2065	0.193	0.000	0.022	15.38	3.61	..	..

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Table M.

Analyses of Samples taken from the Mains of the Company.

1894.	Total Solid Matter.	Chlorine.	Equal to Chloride of Sodium.	Nitrogen as Nitrates.	Nitrogen as Ammonia.	Oxygen requiredto oxidise Organic M atter.	Degree of Hardness.	Degree after boiling ¼ of an hour.	Organic Carbon.	Organic Nitrogen.
January	..	1.332	2.183	0.232	0.000	0.028	18.47	..	0.060	0018
February	..	1.314	2.153	0.263	„	0.035	16.52	..	0.095	0.021
March	..	1.320	2.163	0.246	„	0.029	14.91	..	0.087	0.023
April	..	1.260	2.065	0.237	„	0.015	15.10	..	0.035	0.014
May	..	1.206	1.976	0.195	„	0.019	14.52	..	0.042	0.015
June	..	1.206	1.976	0.172	„	0.021	14.58	..	0.043	0.015
July	..	1.224	2.006	0.132	„	0.015	13.60	..	0.038	0.013
August	..	1.242	2.035	0.135	„	0.013	13.34	..	0.031	0.007
September	..	1.242	2.035	0.135	„	0.012	14.44	..	0.035	0.007
October	..	1.242	2.035	0.146	„	0.11	15.31	..	0.038	0.006
November	..	1.248	2.045	0.201	„	0.038	15.26	..	0.124	0.016
December	..	1.242	2.035	0.190	„	0.033	15.63	..	0.083	0.013
Average	..	1.256	2.058	0.190	0.000	0.022	15.14	..	0.059	0.014