View File - Development Services - City of Oxnard

TABLE 3-3PHWA Water QualityConstituent Units MCL PHWA RangePrimary StandardsTurbidity NTU 0.5 0.08 - 0.13MicrobiologicalTotal Coliform 2 or 5% NDOrganic ChemicalsTrihalomethanes µg/L 100 17 – 46Inorganic ChemicalsAluminum µg/L 1,000 ND – 20Arsenic µg/L 50 NDAsbestos MFL 7 NDBarium µg/L 1,000 9Boron mg/L NS 0.4 – 0.5Cadmium µg/L 5 NDChromium µg/L 50 20Fluoride mg/L 2 0.24 – 1.2Nitrate (as NO 3 ) mg/L 45 4 – 10Selenium µg/L 50 ND - 3RadioactivityGross Alpha pCi/l 15 NRGross Beta pCi/l 50 NRRadium pCi/l 5 NRRadon pCi/l NS NRUranium pCi/l 20 NRSecondary StandardsColor units 15 NDChloride mg/L 500 22 – 29Sulfate mg/L 500 115 – 150Total Dissolved Solids mg/L 1,000 300 – 330pH units 6.5 - 8.5 7.9 – 8.1Hardness mg/L NS 126 – 169Sodium mg/L NS 43 – 48Iron mg/L 300 60Calcium mg/L NS 32 – 40Potassium mg/L NS 2Conductance umhos/cm 1,600 500 – 520Alkalinity mg/L NS 80 – 90Magnesium mg/L NS 14 – 15Lead a mg/L 15 1.7Copper a mg/L 1,300 301Notes:Values are reported from the City of Port Hueneme’s 2001 Consumer Confidence Report.ND – Not detectableNS – No applicable standarda Lead and copper standards are based on action limits for treatment techniques.The levels reported represent the 90th percentile values.W112003002SCO LW700.xls/033460008/Table 3-3