[Report of the Medical Officer of Health for Heston and Isleworth] page -

Heston and Isleworth 1930

[Report of the Medical Officer of Health for Heston and Isleworth]

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Table: Results of the Chemical Examination of Grand Junction Works (Hampton).

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Results of the Chemical Examination of Grand Junction Works (Hampton).

Description of the Sample.	Day of Nonth.	Ammoni- cal Nitrogen.	Albuminoid Nitrogen.	Oxidised Nitrogen	Chlorine	Oxygen abs. from Permanganate 3hrs.at 80°F.	Oxygen abs. from Permanganate 5mins. at 80°F.	Colour m.m. brown 2ft. tube, Burgess's Tintometer.	Hardness (Total).	Hardness (Permanent).
1	2	3	4	5	6	7	8	9	10	11
	1930
	Feb.
Co. 392	20th	0.0008	0.0072		1.70	0.125	0.056	31
Co. 404	21st	0.0006	0.0069		1.63	0.134	0.052	32
Co. 417	24th	0.0004	0.0065		1.65	0.107	0.040	30	23.6	6
Co. 438	26th	0.0004	0.0052		1.61	0.093	0.029	28
Co. 451	27th	0.0004	0.0052		1.62	0.093	0.033	27
Co. 436	28th Mar.	0.0008	0.0050		1.60	0.086	0.032	25
Co. 476	3rd	0.0001	0.0042		1.60	0.076	0.023	23	26.0	6.1
Co. 497	5th	0.0009	0.0037	0.33	1.48	0.068	0.018	22
Co. 508	6th	0.0004	0.0032		1.50	0.067	0.027	20
Co. 520	7th	0.0004	0.0034		1.50	0.062	0.021	20
Co. 533	10th	0.0002	0.0038		1.50	0.059	0.025	19	25.7	6.4
Co. 554	12th	0.0C02	0.0032		1.50	0.054	0.023	20
Co. 567	13th	0.0003	0.0031		1.50	0.050	0.019	20
Co. 579	14th	0.0001	0.0038		1.50	0.047	0.023	19