Thirty-eighth annual report on the health and sanitary condition of the Parish of St. Mary, Islington page 148

Islington 1893

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

This page requires JavaScript

Copy text to clipboard

148
WATER ANALYSIS.
In the following tables I state the analyses (made monthly) of the
New River Company's Water recorded during the year.

Download table as:

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

1893.	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	26.90	1.224	2.006	0.312	0.000	0.012	18.84	4.20	..	..
February	25.40	1.368	2.242	0.271	„	0.035	18.42	4.00	..	..
March.	23.30	1.440	2.360	0.240	„	0.046	18.22	3.80	..	..
April	20.50	1.440	2.360	0.229	„	0.012	15.26	3.90	..	..
May	21.20	1.296	2.124	0.135	„	0.012	14.63	2.82	..	..
June	20.40	1.440	2.360	0.125	„	0.012	14.42	3.20	..	..
July	20.00	1.368	2.242	0.135	„	0.015	14.63	2.64	..	..
August	19.20	1.368	2.242	0.177	„	0.008	14.00	2.91	..	..
September	23.40	1.296	2.124	0.125	„	0.015	15.47	3.70	..	..
October	24.80	1.296	2.124	0.146	„	0.008	14.84	3.60	..	..
November	24.40	1.296	2.124	0.198	„	0.008	17.37	4.10	..	..
December	22.70	1.296	2.124	0.271	„	0.016	16.95	4.10	..	..
Average	22.68	1.344	2.202	0.197	o.ooo	0.016	16.08	3.58	..	..

Download table as:

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

1893.	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	..	1.200	l.967	0.295	0.000	0.029	18.35	..	0.061	0.016
February	..	1.296	2.124	0.234	„	0.038	18.26	..	0.081	0.021
March	..	1.296	2.124	0.245	„	0.035	16.89	..	0.072	0.016
April	..	1.368	2.242	0.226	„	0.014	15.61	..	0.039	0.015
May	..	1.314	2.153	0.140	„	0.022	14.63	..	0.050	0.014
June	..	1.386	2.271	0.164	„	0.017	15.15	..	0.042	0.013
July	..	1.344	2.203	0.167	„	0.016	15.19	..	0.034	0.013
August	..	1.344	2.203	0.174	„	0.016	14.77	..	0.039	0.015
September	..	1.314	2.153	0.146	„	0.011	15.10	..	0.034	0.015
October	..	1.296	2.124	0.177	„	0.012	16.05	..	0.033	0.011
November	..	1.278	2.094	0.216	„	0.012	17.37	..	0.039	0.014
December	..	1.224	2.006	0.245	„	0.020	18.11	..	0.039	0.015
Average	..	1.305	2.138	0.202	0.000	0.020	16.29	..	0.046	0.014