Report on the sanitary condition of the Hackney District for the year 1898 page 60

Hackney 1898

Report on the sanitary condition of the Hackney District for the year 1898

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Table: Table VII.— Analysis of River Lea Water, made during the year 1898, by Mr. Leo Taylor, F.I.C., Public Analyst.

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Table VII.— Analysis of River Lea Water, made during the year 1898, by Mr. Leo Taylor, F.I.C., Public Analyst.

date.	Where Taken.	Total solid residue.	Saline Ammonia.	Organic Ammonia.	Oxygen requir'd to oxidise the organic mutter.	Chr'line	Nitrates and Nitrites.	Sulphuretted Hy'dg'n	REMARKS.
June 7th,	Junction of the Leyton and Walthamstow Sewage outlet.	798	2.38	.42	.185	5.4	Strong traces		The sample was free from Sulphurretted Hydrogen, which, however, speedily developed; but it was black and turbid, possessing a very foul sewage odour. A very bad sample indeed in every sense.
June 22nd,	„	64.5	4.o6	.36	1.890	7.9	Nitrates. very strong traces. Nitrites. slight traces.	Present.	The sample was a very bad one ; it possessed a strong sewage odour, and was greyish brown in colour. It is practically sewage from which some of the suspended matter has been removed.
July 6th,	,	74.2	5.83	1.25	2 082		Nitrates . traces. Nitrites. slight traces.	Trac.s	The sample was greyish brown in colour and possessed a strong sewage odour. For organic contamination it is the worst I have examined this summer.
July 27th, August 15th	Bathing Pool, Hackney Marshes. River Lea, near "White Hart."	35.9 87.5	.93 4.2	.224 .421	.590 1.072	27 77	Slight traces. Strong traces.	Present.	The sample was free from Sulphuretted Hydrogen and possessed a slight earthy odour, and was greyish yellow in colour. This sample is much worse than the previous sample analysed by me in June, 1896, and the condemnation of the water for bathing purposes then pronounced must be repeated with greater emphasis now. The sample had a very strong sewage odour, evolved Sulphuretted Hydrogen, and was brownish yellow in colour. An exceedingly foul sewage effluent.
Sept. 5th	Tumbling Bay, White Hart, H.ckney M.shes	81.9	j 5.83	.28	2.217	ri.3	Slight traces.	Present.	The sample possessed a foul sewage odour and was brownish yellow in colour. It is indistinguishable from sewage.