[Report of the Medical Officer of Health for Hanover Square, The Vestry of the Parish of Saint George] page 115

St George (Westminster) 1889

[Report of the Medical Officer of Health for Hanover Square, The Vestry of the Parish of Saint George]

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Table VIII.

Showing the results ofMr. Cassal'sAnalyses of the Water supplied by the Grand Junction and Chelsea Water

Companies, from April,1889,to March,1890.

Date of Collection		April 24.	May 23.	June 27.	July 20.	August 22.	Sept. 26.	Oct. 18.	Nov. 21.	Dec. 20.	Jan. 23.	Feb. 17.	March 24.	Average.
Grand Junction Co.'s Water.	Total Solid Matters	36	29.2	25.2	29	26	26	32	36.8	34	38	36	34	31.8	Parts per 100 Thous.
	a. Volatile	14	9.2	9.2	12	10	14	16	12.8	18	16	14	14	13.2
	b. Fixed	22	20.0	16.0	17	16	12	16	24.0	16	22	22	20	18.6
	Chlorine	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8
	Equivalent to Common Salt	2.96	2.96	2.96	2.96	2.96	2.96	2.96	2.96	2.96	2.96	2.96	2.96	2.96
	Nitrogen as Nitrates	0.233	0.20	0.107	0.117	0.145	0.108	0.09	0.155	0.23	0.20	0.175	0.155	0.159
	Saline Ammonia	2.2	2.2	1.4	2.2	0.8	2.2	1.6	2.2	1.4	2.2	1.4	1 6	1.8	Parts Per 100Mill.
	Organic Ammonia	10.6	14.6	15.2	12.0	8.6	10.4	9.4	16.0	10.8	15.2	14.2	12.1	12.4	Parts Per 100Mill.
Chelsea Company's Water.	Total Solid Matters	32	32	20	26	23	32	30	32	32	38	36	42	31.2	Parts per 100 Thous.
	a. Volatile	12	18	12	9	11	12	14	16	12	16	16	16	13.6
	b. Fixed	20	14	8	17	12	20	16	16	20	22	20	26	17.6
	Chlorine	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8
	Equivalent to Common Salt	2.96	2.96	2.96	2.96	2.96	2.96	2.96	2.96	2.96	2.96	2.96	2.96	2.96
	Nitrogen as Nitrates	0.14	0.20	0.093	0.117	0.116	0.2	0.16	0.155	0.164	0.20	0.162	0.155	0.155
	Saline Ammonia	1.34	2.2	0.8	1.4	0.8	2.2	1.6	2.2	1.8	2.2	1.4	1.6	1.6	Parts per 100 Mill.
	Organic Ammonia	12.4	12.8	13.4	9.6	8.8	9.6	8.6	13.2	12.0	14.4	14.0	11.2	11.7	Parts per 100 Mill.

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