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I SANTA ANA WATER QUALITY REPORT <br />EXHIBIT 5 <br />75C -53 <br />11 <br />PHG <br />IMPORTED <br />GROUNDWATER <br />GROUNDWATER <br />PARAMETER MDCL <br />MCLG <br />WATER <br />or SYSTEM <br />TYPICAL SOURCE <br />[ R] <br />[MRDLG] <br />OF CONTAMINANT <br />(MCLG) <br />Range Average <br />Range Average <br />Volatile Organic Compounds <br />OF CONTAMINANT <br />Range <br />Average <br />Range <br />Average <br />Leaking underground gasoline <br />Methyltert- butyl -ether 5 <br />13 <br />NO ND <br />ND ND <br />storage tanks and pipelines; <br />(MTBE) (fi <br />53.72 <br />Runoff /leaching from natural deposits; <br />discharge from petroleum and <br />chemical factories <br />Disinfection By- Products, Disinfectant <br />Residuals - Values are for the distribution <br />system based on annual <br />running average <br />Total Trihalomethanes <br />80 <br />NA <br />12.60 58 <br />ND-46.3 2G.5 <br />By- product of drinking water <br />(TTHM)(ppb)' <br />3 <br />NA <br />I.2 <br />disinfection <br />Haloacitic Acids (Five) 60 <br />NA <br />ND -22 18 <br />ND -22.6 9.6 <br />By- product of drinkingwater <br />NA <br />NC <br />NC <br />449 -986 <br />disinfection <br />Total Chlorine Residual [40] <br />1 <br />1.3 -2.9 2.3 <br />ND -1.18 0.74 <br />Drinldngwater disinfectant added <br />(ppm) <br />water, seawater Influence <br />for treatment <br />I SANTA ANA WATER QUALITY REPORT <br />EXHIBIT 5 <br />75C -53 <br />11 <br />PHG <br />IMPORTED WATER <br />GROUNDWATER <br />TYPICAL SOURCE <br />PARAMETER <br />MCLG <br />(MCLG) <br />OF CONTAMINANT <br />Range <br />Average <br />Range <br />Average <br />Chloride (ppm) <br />500 <br />NA <br />86 -92 <br />89 <br />20.1 -100 <br />53.72 <br />Runoff /leaching from natural deposits; <br />seawater influence <br />Color (units) <br />15 <br />NA <br />1 <br />1 <br />ND -3 <br />0.3 <br />Naturally - occurring organic materials <br />Odor, Threshold (units) <br />3 <br />NA <br />I.2 <br />1.5 <br />ND <br />ND <br />Natural occurring organic materials <br />Spec. Conductance <br />1600 <br />NA <br />NC <br />NC <br />449 -986 <br />686.61 <br />Substances that form ions when in <br />(um /cm) <br />water, seawater Influence <br />Sulfate(ppm) <br />500 <br />NA <br />223.241 <br />232 <br />49.50 -153 <br />91.06 <br />Runoff /leaching from natural deposits, <br />seawater influence <br />Total Dissolved Solids <br />1000 <br />NA <br />603 -651 <br />627 <br />276.622 <br />426.16 <br />Runoff /leaching from natural deposits <br />porn) <br />Turbidity (1 <br />5 <br />NA <br />ND <br />ND <br />ND -0.3 <br />0.05 <br />Soil runoff <br />I SANTA ANA WATER QUALITY REPORT <br />EXHIBIT 5 <br />75C -53 <br />11 <br />