Forty-ninth annual report on the health and sanitary condition of the Borough of Islington page 273

Islington 1904

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

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278
[1904

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Table V.

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

Analyses of Samples taken from the Works of the Company.

1904.	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 boiling¼ of an hour.	Organic Carbon.	Organic Nitrogen.
January	26.00	1.296	2.124	0.323	0.000	0.026	18.22	4.59	..	..
February	24.00	1.296	2.124	0.229	,,	0.064	16.52	4.80	..	..
March	23.90	1.296	2.124	0.261	,,	0.016	17.37	3.99	..	..
April	21.00	1.296	2.124	0.219	,,	0.012	15.47	3.19	..	..
May	20.60	1.368	2.242	0.208	,,	0.008	15.89	3.59	..	..
June	19.40	1.368	2.242	0.156	,,	0.016	14.84	3.40	..	..
July	22.00	1.440	2.360	0.198	,,	0.015	14.63	3.00	..	..
August	21.50	1.368	2.242	0.167	,,	0.022	14.84	3.00	..	..
September	22.00	1.296	2.124	0.208	,,	0.012	16.10	3.10	..	..
October	22.90	1.296	2.124	0.229	,,	0.008	15.89	3.19	..	..
November	21.20	1.368	2.242	0.208	,,	0.003	15.89	3.19	..	..
December	23.50	1.368	2.242	0.219	,,	0.003	16.73	4.10	..	..
Average	22.33	1.338	2.193	0.219	0.000	0.017	16.03	3.59	..	..

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Analyses of Samples taken from the Mains of the Company.

1904.	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 ¼ of an hour.	Organic Carbon.	Organic Nitrogen.
January	..	1.332	2.183	0.286	0.000	1.00l8	17.79	..	0.092	0.012
February	..	1.350	2.212	0.247	,,	0.044	17.37	..	0.135	0.017
March	..	1.368	2.242	0.271	,,	0.027	17.72	..	0.087	0.010
April	..	1.320	2.163	0.226	,,	0.013	15.75	..	0.060	0.008
May	..	1.350	2.212	0.216	,,	0.010	15.57	..	0.059	0.007
June	..	1.404	2.301	0.169	,,	0.016	15.52	..	0.051	0.006
July	..	1.464	2.399	0.194	,,	0.012	14.49	..	0.032	0.006
August	..	1.350	2.212	0.195	,,	0.016	15.15	..	0.055	0.006
September	..	1.350	2.212	0.200	,,	0.008	15.21	..	0.037	0.005
October	..	1.350	2.212	0.221	,,	0.010	15.68	..	0.032	0.005
November	..	1.368	2.242	0.212	,,	0.006	16.52	..	0.026	0.004
December	..	1.386	2.271	0.237	,,	0.009	17.15	..	0.049	0.005
Average	..	1.366	2.238	0.222	0.000	0.016	16.16	..	0.059	0.008

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