[Report of the Medical Officer of Health for London County Council] page -

London County Council 1900

[Report of the Medical Officer of Health for London County Council]

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Table: Table 3. Particulars as to the Capacity of the Bacteria Beds and as to the loss of Capacity during working.

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Table 3. Particulars as to the Capacity of the Bacteria Beds and as to the loss of Capacity during working.

No.	Name of town or district.	Name or number of bed.	Capacity, when empty, of the tank containing the bed. Gallons.	Original water capacity of the bed in the tank.			"Water capacity of the bed after use.			Number of hours occupied in draining the bed.	Number of days during which the bed had been resting previous to the measurement being made.	Loss of capacity.		Length of time during which the bed was in use.	Number of fillings during the time.
No.	Name of town or district.	Name or number of bed.		Date.	Gallons.	Percentage of the empty tank.	Date.	Gallons.	Percentage of the empty tank.	Number of hours occupied in draining the bed.		Gallons.	Percentage of original water capacity of the bed.	Length of time during which the bed was in use.	Number of fillings during the time.
22	Huddersfield	Coarse bed	34,931	9 Aug., 1898	19,000	51-4	3 Mar., '99	9,000	25.8	...	0	10,000	52.8	29 weeks	317
							31 May, '99	7,300 *	20.9	...	0	1,700	8.9	13 „	148
							11 July, '99	6,100	17.5	...	0	1,200	6.3	6 „	70
							17 Oct., '99	5,600	16.0	...	0	500	2.6	14 „	156
							24 Jan., '00	4,800	13.7	...	0	800	4.2	14 „	164
		No. 10 Coarse bed (septic series) Fine bed (septic series)	36,392	25 July, 1898	19,940	54-8	10 Feb., '02	7,900	21.7	3	0	12,040	60.4	185 „	2,881
			6,738	22 Aug., 1900	3,990	59-2	13 Jan., '02	1,770	26.3	3	0	12,220	55.6	73 „
			6,738	22 Aug., 1900	3,900	57-9	13 Jan., '02	2,280	33.8	3	0	1,620	41.5	73 „
			6,738		3,900	' *
			23	Hyde	No loss of capa	city so far as de	termined. N	ow working at	higher speed	than before.
24	Keighley	• • •	1,980	...			8 Mar., '02	660	33	...	None.
25	Kettering	Fine sludge from the precipitation tanks clogs the surface of the beds, but in favourable weather the surface of the beds is loosened with a fork. This greatly improves the working of the beds. Road detritus appears to be retained in the Dortmund tanks, through which the sewage first flows.
		3 beds	406,000 each	June to Aug., 1898	170,000	418		130,000 (average)	320	2 to 3	...	40,000	23-4	Since 1898
		1 „	320,000	Not me asured		Each bed rests 1 week and works three weeks when practicable. Figures relating to ca parity are working averages.