[Report 1962] / Medical Officer of Health and School Medical Officer of Health, Southport County Borough.

  • Southport (England). County Borough Council.
Date:
1962
Catalogue details

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: [Report 1962] / Medical Officer of Health and School Medical Officer of Health, Southport County Borough. Source: Wellcome Collection.

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    -- Geology—The area consists of a bed of blown sand resting on peat, below whic:l lies a bed of laminated blue clay. While the lower strata appears to be undergoing aa^ exceedingly slow subsidence, any loss which might result from that circumstance is muc:j more than made good by the continual accretion of sand derived from the Mersey' Land is gradually being reclaimed, both by natural and artificial means. The overlyin.^ sand on the east and south borders gradually thins out, exposing a margin of peat withiif the boundary of the area. j The elevation of the built-upon area varies from about 12 feet to 38 feet abow] Ordnance Datum. Water—The water supply is provided by the West Lancashire Water Board whicf is responsible also for the supply to several neighbouring local authorities. All the water supplied is pumped from wells and boreholes sunk in the sandstona rocks to depths varying between 180 and 1,000 feet. The five pumping stations which contribute to the supply of Southport are situatec! five to ten miles south-east of the town. Owing to the depth of the wells and the control exercised over their surroundings.*; the water, though hard, is consistently of the highest standard of bacterial purity. As j precaution, however, all water is chlorinated at the source. At four pumping stations filters are installed to remove the iron and manganese' present in the water as it comes from the wells. After filtration and chlorination the water is stored in covered reservoirs. Samples are taken for chemical and bacteriological examination at regular intervals' Town’s Water, Chemical Analysis, 30th August, 1962 Parts per Million Total solid matter in solution . 468‘ Oxygen absorbed in 15 minutes. 0*08^ from Permanganate J in 3 hours . 0-16‘ Ammonia . *** ••• ••• ••• *«• ••• ••• Nil Albuminoid Ammonia ••• ••• ••• ••• ••• ••• Nil Nitrogen as Nitrates *** ••• ••• ••• ••• 0-06 Nitrogen as Nitrites ... *•* ••• ••• ••• ••• Nil Combined Chlorine ... •*« ••• ••• ••• ••• 32 Free Chlorine ••• ••• ••• 0-02 Lead ... ••• ••• ••• ••• ••• Nil Copper . ••• ••• ••• ••• ••• Nil Zinc . ••• ••• ••• ••• Nil Total Iron ••• ••• ••• ••• 0.07 Carbonate Hardness (as Calcium Carbonate) . 248 Total Hardness (as Calcium Carbonate). (p.H. value: 7,3) 336