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8
Public Health Act, 1875, Sect. 112, as amended by Sect. 51 of
the Public Health Acts Amendment Act, 1907, with respect to:—
Offensive Trades (May 9th, 1893), as follows:—
Blood Boiler and Blood Drier;
Bone Boiler;
Fellmonger, Tanner, and Leather Dresser;
Soap Boiler, Tallow Melter, Fat Melter or Extractor;
Tripe Boiler;
Glue Maker and Size Maker;
Gut Scraper;
Nuisances in connection with the removal of offensive
or noxious matters;
Fish Frier.
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SANITARY CIRCUMSTANCES OF THE AREA.
Water.
The water is obtained from wells sunk through the clay and
reading beds and borings deep into the chalk. The wells are at
New Barnet, East Barnet, Potters Bar, Tyttenhanger, and one at
North Mimms. It is pumped direct into the mains or into reservoirs
at New Barnet and Rowley Green. It is of great purity, pleasant to
drink, and almost free from organic matter or objectionable bacteria.
Like all London water, it is of considerable hardness varying in
the different wells from 22 to 26 degrees of hardness (I degree of
hardness is equal to 1 in 100,000 parts, 0.7 grains of carbonate of
lime in 1 gallon of water). Much of the hardness might be remedied
by boiling; this process precipitates the lime, but at the same time
by boiling out the oxygen renders the water less pleasant to the taste.
So far as is known, the hardness has no deleterious effect, such as
causing disease of the blood vessels or the so-called rheumatic
affections of joints. On the other hand, those who use it are free
from the diseases associated with the consumption of softer water
obtained from reservoirs, such as lead poisoning, &c.