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Drinking Watzr Maximum Contatninam Levels • http:/~w.dhs.ra.gov/ps/ddwenJchenticals/mcl/mclindex.htm <br />-~ <br />Annual average of maximum daily air <br />temperature Optimal Level (Range) <br />50.0 to 53.7 degrees Fahrenheit (°F 1.2 (1.1-1.7) <br />53.8 to 58.3 °F 1.1 (1.0-1.6) <br />58.4 to 63.8 °F 1.0 (0.9-1.5) <br />63.9 to 70.6 °F 0.9 (0.8-1.4) <br />70.7 to 79.2 °F 0.8 (0.7-1.3) <br />79.3 to 90.5 °F 0.7 (0.6-1.2) <br /> <br />22 CCR §64441 and §64443-Radionctivity <br />Gross alpha particle activityb 15 pCi/L` <br />Gross beta particle activity 50 pCi/L <br />Combined Radium-226 and Radium-228 5 pCi/L <br />Strontium-90 8 pCi/L <br />Tritium 20,000 pCi/L <br />Uranium 20 pCi/I. <br /> <br />22 CCR §64439-Total Triha[omethnnes <br />Sum of bromodichloromethane, 0.1 <br />dibromoc hloromethane, <br />bromoform, and chloroform <br /> <br />22 CCR §64444-Organic Chemicals <br />(n) Volatile Organic Chemicals (VOCs) <br />Benzene 0.001 <br /> <br />3 of 13 721 /99 3:32 PM <br />