180 NAC 4A-004.40. The concentration values were derived by taking the most restrictive occupational stochastic oral ingestion annual limit on intake (ALI) and dividing by 7.3 x 106 (ml)

004.40. The concentration values were derived by taking the most restrictive occupational stochastic oral ingestion annual limit on intake (ALI) and dividing by 7.3 x 106 (ml). The factor of 7.3 x 106 (ml) is composed of a factor of 7.3 x 105 (ml), the annual water intake by Reference Man, and a factor of 10, such that the concentrations, if the sewage released by the licensee were the only source of water ingested by a Reference Man during a year, would result in a committed effective dose equivalent of 0.5 mSv (0.5 rem).