BUREAUS OF WATER SUPPLIES

Chemical contamination of water supplies.

Man-made organic chemicals have been found in drinking water for many years. Their numbers and varieties increase as our analytical capabilities improve. The identified chemicals comprise 10 to 20% of the total organic matter present. These are volatile or low molecular weight compounds which are easily identified. Many of them are carcinogenic or mutagenic. Chlorinated compounds have been foun...

Adding fluoride to water supplies.

The Bacteriological Examination of Water Supplies

The Safety of Public Water Supplies

of which was the fact that throughout the operations on the Western Front there was no epidemic of any water-borne diseases. Bearing in mind that in a large number of instances the ordinary sources of supply were either rendered useless or totally destroyed, and that to make up the deficiency drinking water for the armies had to be taken haphazard from streams, canals and rivers, the entire suc...

Incidence of coliphage in potable water supplies.

Samples of drinking water from different sources in greater Cairo, Egypt, and bottled drinking water were tested for total coliform, fecal coliform, and coliphage populations. Of the 147 samples tested, 4 samples were positive for both total coliforms and coliphage, 65 samples were negative for total coliforms, fecal coliforms, and coliphage, and 78 samples were positive for coliphage and negat...