Forty-seventh annual report on the health and sanitary condition of the Borough of Islington page 244

Islington 1902

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

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244
1902]
Table W.
Shouting the Analyses t made monthly) of the New River Company's Water
recorded during the Year.

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Analyses of Samples taken from the Works of the Company.

1902.	Total Solid Matter.	Chlorine.	Equal to Chloride of Sodium.	Nitroge n 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	25.oo	1.440	2.360	0.312	o. ooo	0.044	17.37	4.69	..	..
February	24.40	1.440	2.360	0.208	,,	0.0l6	17.58	4.20	..	..
March	25.00	1.368	2.242	0.177	,,	o.o24	17.16	4.40	..	..
April	20.80	1.296	2.124	0.188	,,	O.Ol6	15.05	4.10	..	..
May	21.60	1.296	2.124	0.135	,,	0.012	15.05	3.80	..	..
June	25.20	1.296	2.124	0.177	,,	0.019	15.26	3.89	..	..
July	25.70	1.368	2.242	0.167	,,	0.028	15.47	3.70	..	..
August	23.20	1.440	2.360	0.156	,,	0.016	14.84	3.59	..	..
September	21.60	1.368	2.242	0.177	,,	0.008	15.26	3.70	..	..
October	25.20	1.368	2.242	0.229	,,	0.015	15.68	3.99	..	..
November	24.20	1.440	2.360	0.177	,,	0.015	16.10	4.50	..	..
December	24.80	1.440	2.360	0.198	,,	0.015	17.16	4.20	..	..
Average	23.89	1.380	2.261	0.192	o.ooo	0.019	15.99	4.06	..	..

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Analyses of Samples taken from the Mains of the Company.

1902.	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	..	1.350	2.212	0.265	0.000	0.021	17.10	..	0.077	0.013
February	..	1.320	2.163	0.236	,,	0.021	16.87	..	0.054	0.007
March	..	1.320	2.163	0.184	,,	O.025	16.66	..	0.072	0.010
April	..	1.296	2.124	0.185	,,	O.017	15.47	..	0.054	0.008
May	..	1.296	2.124	0.156	,,	0.013	14.53	..	0.047	0.008
J une	..	1.368	2.242	0.170	,,	0.025	15.12	..	0.055	0.008
July	..	1.422	2.330	0.146	,,	0.016	15.05	..	0.067	0.008
August	..	1.350	2.212	0.156	,,	O.017	14.84	..	0.048	0.007
September	..	1.440	2.360	0.160	,,	0.013	14.84	..	0.043	0.007
October	..	1.422	2.330	0.232	,,	0.017	15.00	..	0.044	0.007
November	..	1.386	2.271	0.188	,,	0.013	16.15	..	0.014	0.007
December	..	1.404	7.301	0.200	,,	0.014	16.62	..	0.043	0.006
Average	..	1.365	2.236	0.190	0.000	0.018	15.69	..	0.054	0.008