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

Islington 1898

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

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Table: WATER ANALYSIS. In the following tables I state the analyses (made monthly) of the New River Company's Water recorded during the year. Analyses of Samples taken from the Works of the Company.

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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. Analyses of Samples taken from the Works of the Company.

1898.	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 of an hour.	Organic Carbon.	Organic Nitrogen.
January	22 00	1·224	2·006	0·214	0·000	0·022	18·22	4·20	..	..
February	21·60	1·224	2·006	0·231	,,	0·015	17·37	3·50	..	..
March	21·20	1·224	2·006	0·199	,,	0·011	16·10	3·99	..	..
April	19·60	1·224	2·006	0·135	,,	0·015	15·89	4·20	..	..
May	20·80	1·296	2·124	0·139	,,	0·007	15·68	4·29	..	..
June	19·30	1·296	2·124	0·127	,,	0·015	15·47	4·20	..	..
July	26·10	1·368	2·242	0·119	,,	0·015	15·89	4·20	..	..
August	23·60	1·368	2·242	0·115	,,	0·011	15·89	4·20	..	..
September	21·80	1·368	2·242	0·098	,,	0·015	16·52	4·69	..	..
October	26·60	1·296	2·124	0·145	,,	0·011	17·37	4·69	..	..
November	22·00	1·368	2·242	0·141	,,	0·030	15·05	4·10	..	..
December	25·90	1·584	2·596	0·148	,,	0·015	17·58	6·69	..	..
Average	22·04	1·320	2·163	0·151	0·000	0·015	16·42	4·33	..	..
Analyses of Samples taken from the Mains of the Company.
1898.	Total Solid Matter.	Chlorine.	Equal to • Chloride of Sodium.	Nitrogen its Nitrates.	Nitrogen as Ammonia.	Oxygeu required to oxidise Organic- Matter.	Degree of Hardness.	Degree after bolling of an hour.	Organic Carbon.	Organic Nitrogen.
January	..	12·42	2·035	0·279	0·000	0·021	18·00	..	0·056	0·010
February	..	1·224	2·006	0·212	,,	0·015	17·44	..	0·028	0·004
March	..	1·242	2·035	0·206	..	0·010	16·26	..	0·024	0·005
April	..	1·248	2·045	0·173	,,	0·012	15·47	..	0·028	0·004
May	..	1·296	2·124	0·170	,,	0·011	15·47	..	0·034	0·005
June	..	1·2915	2·124	0·174	,,	0·012	15·19	..	0·037	0·004
July	..	1·314	2·153	0·161	,,	0·013	15·36	..	0·025	0·004
August	..	1·332	2·183	0·164	,,	0·011	15·99	..	0·022	0·003
September.	..	1·314	2·153	0·159	,,	0·013	16·42	..	0·019	0·003
October	..	1·296	2·124	0·163	,,	0·010	17·09	..	0·031	0·005
November	..	1·314	2·163	0·193	,,	0·011	16·70	..	0 037	0·005
December	..	1·440	2·530	0·215	,,	0·019	17·15	..	0 063	0·010
Average	..	1·296	2·124	0·192	0·000	0·013	16·38	..	0·034	0·005