[Report 1905] / Medical Officer of Health, Shelf Local Board of Health District / U.D.C.

  • Shelf (England). Local Board of Health.
Date:
1905
Catalogue details

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: [Report 1905] / Medical Officer of Health, Shelf Local Board of Health District / U.D.C. Source: Wellcome Collection.

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    From the Receiving Tank, the effluent is conducted through 5 in. iron pipes to No. 4 circular filters built of pigeon-holed brick walls. Each of these filters is 26 feet in diameter and 6 feet deep, and suitable medium. The total capacity of these filters is 472 cube yards, and allowing for 168-7 gallons per cube yard per 24 liours=79,628 gallons (double dry weather flow=36,000 galls.) Surface level of Filters, 709' 00 O.D. and 689' 75. Discharge ,, ,, 703'00 ,, ,, 681'75. The effluent is distributed on to the above filters by patent automatic revolving distributors. From the Filters, the effluent is conducted on to irrigation areas 12 in number, by means of pipe carriers, the areas are level underdug 12in. deep, soil 12in. deep and banks 18in. high and are underdrained by 4in. land tiles in lines 20 feet apart or thereabouts. The filtered effluent is collected into a discharge pit (lined with white glazed tiles for purposes of inspection) and from there discharged into the stream. Level of pit 622' 00 O.D. 6. Areas.—The total area of site is la. 3r. 36p. The nature of the sub-soil (ascertained by digging try holes on the site) is clay of a somewhat impervious nature, as is practically all the land in this neighbourhood. FACTORY AND WORKSHOP ACT. There are three mills in the District, one of which is divided into three factories. They together give employment to about eight hundred hands.