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11
" Analytical Laboratory.
12 & 14, Southwark Street, S.E.,
24th October, 1892.
" Report on two samples of Water received October 17th from
Inspectors Grist and Broadhead.
" The samples were contained in Winchester quart bottles, sealed
and labelled respectively, ' Sample of Water taken from the Southwark
and Vauxhall Company's Main in Sonthwark Street, October 17th,' and
' Sample of Water taken from the Lambeth Water Company's Main,
Blackfriars Road, Samuel Broadhead. October 17th, 1892, at 12.0.'
" Both samples were clear and of a yellowish green colour when
viewed in a 2ft. stratum. They were free from taste or odour. They
Contained and yielded in grains per gallon :
Southwark & Vauxhall.
Lambeth.
Total Solid Matter
20.60
21.00
Loss on Ignition
8.50
3.50
Miueral Solids
17.00
17 .50
Combined Chloriue
1.80
1.40
Equal to Common Salt
2.14
2.31
Nitrogen as Nitrates
0.15
0.18
Nitrites
none
none
Saline Ammonia
trace
trace
Albumenoid Ammonia
0.0070
0.0075
Oxygen required ..
0.067
00.70
Hardness (in degrees)
13.0o
1 3.0o
" Remarks. On comparing these figures with those yielded by the
analyses of September 5th, a very trifling improvement is shown by the
Southwark and Vauxhall Company's sample, as indicated by the
Albumenoid Ammonia.
" The Lambeth sample is almost identical in Albumenoid Ammonia
and Oxygen required with the September sample of the
same Company's water.
"I am of opinion that both samples are still of unsatisfactory
purity.
"The microscopical examination of the tritling amount of
suspended matter in both samples showed the presence of a few
vegetable fibres (cotton) and earthy matter, but no moving organisms.
"With regard to the analyses made by me in September, I find, on
examining the Report of Dr. Odling and Prof. Crookes for that month,
that, on the 3rd and 6th, sample* were taken for analysis (from the
Southwark and Vauxhall Company's Main on the 3rd September, and
from the Lambeth Company's Main on September 6th). These
samples yielded the highest figures of any of the London Companies'
water for the month of September. I am of opinion that the figures
for these samples fully confirm my results of September 5th.
"R. BODMER."
" Analytical Laboratory,
16, Southwark Street, S.E.,
November '24th, 1892.
"Report on two samples of Water received November 18th. The
samples were enclosed in Winchester quart bottles, sealed, and labelled
respectively, ' Sample of Water taken from Standpost of Southwark and
Vauxhall Coy.'s Main, opposite the Hop Exchange, Southwark St.,
Nov. 18th, 1892, by Arthur A. Grist,' and 'Sample of Water taken
from the Lambeth Water Main in Blackfriars Rd.. Nov. 18th, 1892,
by Samuel Broadhead.'