4102.01 DESCRIPTION.
Water used in concrete or mortar shall be free from detrimental amounts of oil, salts, acids, alkali, organic matter, or other objectionable substances. Recycled wash water will not be permitted for use in concrete. Where the source of water is relatively shallow, it shall be maintained at a suitable depth, and the intake screened, to exclude objectionable amounts of silt, mud, grass, or other foreign material. Water which contains suspended matter in excess of 2000 ppm shall be filtered or otherwise clarified.

Water Quality Shall Be As Follows:

1. Hardness, determined as calcium carbonate, not more than 750 ppm.

2. Methyl Orange, Alkalinity, determined as calcium carbonate, not more than 1000 ppm.

3. Phenolphthalein Alkalinity, determined as calcium carbonate, not more than one-half the methyl orange alkalinity.

4. Total Acidity, determined as calcium carbonate, not more than 100 ppm.

Potable water obtained from a municipal supply, suitable for drinking, may be accepted without testing.