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RISK AND HAZARD INPUT-OUTPUT SUMMARY, AREA III <br /> INGESTION OF IRRIGATION WATER <br /> Ingestion rate (ml/hr) 50 0 50 0 <br /> Exp Freq Irrigation (events/year) ISO 150 <br /> Exp Duration Groundwater (years) 6 00 30 0 <br /> Absorption Adjustment Factor for <br /> Ingestion of water (-) <br /> MTBE 10 10 <br /> INHALATION OF GW SPRAY <br /> width of sprinkler Spray (m) 9 00 4 00 <br /> Height of Breathing zone (m) 2 00 2 00 <br /> Average windspeed (m/s) 2 25 2 25 <br /> Temperature of Irrigation water (C) 25 0 25 0 <br /> sprinkler Flow Rate (I min) 50 0 50 0 <br /> Droplet Diameter Sprinkler (cm) 0 200 0 200 <br /> Droplet Droptime for sprinkler (s) 5 00 5 00 <br /> Time in Sprinkler (hour/day) 2 60 2 00 <br /> Inhal Rate outdoors (mA3/1ir) 0 830 0 830 <br /> Lung Retention Factor (-) 1 00 1 00 <br /> Exp Freq Irrigation (events/year) 150 150 <br /> Exp Duration Groundwater (years) 6 00 30 0 <br /> Absorption Adjustment Factor for <br /> Inhalation (-) <br /> MTBE 1 0 1 0 <br /> Henry"s Law constant C-) <br /> MTBE 2 04E-02 2 04E-02 <br /> Molecular weight (g/mole) <br /> MTBE 88 88 <br /> DERMAL CONTACT WITH IRRIG WATER <br /> Total Skin surface Area (CMA2) 7 280E+03 2 300E+04 <br /> Fraction skin Exposed to water (-) 0 500 0 560 <br /> Time in Irrigation water (hour/day) 2 60 2 00 <br /> Exp Freq Irrigation (events/year) 150 150 <br /> Exp Duration Groundwater (years) 6 00 30 0 <br /> Dermal Permeability Coefficient (cm/hour) <br /> MTBE 3 lOE-03 3 IOE-03 <br /> Absorption Adjustment Factor for <br /> Dermal Exposure to water (-) <br /> MTBE 1 0 1 0 <br /> INHALATION OF INDOOR AIR <br /> Inhalation rate (mA3/hr) 0 625 0 830 <br /> Time indoors (hours/day) 24 0 24 0 <br /> Lung Retention Factor (-) 1 00 1 00 <br /> Exp Freq indoor Air (events/yr) 350 350 <br /> Exp Duration Indoor Air (yr) 6 00 30 0 <br /> Absorption Adjustment Factor for <br /> Inhalation C-) <br /> MTBE 1 0 1 0 <br /> MEDIA CONCENTRATIONS <br /> r <br /> Concentration in Groundwater (mg/L) <br /> Obtained from Fate and Transport output <br /> AVERAGE Concentration (over exposure duration) <br /> (used to calculate carcinogenic risk) <br /> Exposure Duration (years) 6 0 30 <br /> MTBE 4 07E-04 4 07E-04 <br /> Concentration used to calculate hazard index <br /> (Averaged over 7 years or exposure duration, if less than 7 years) <br /> Exposure Duration (years) 6 0 7 0 <br /> MTBE 4 07E-04 4 07E-04 <br /> Conc in Irrigation water (mg/L) <br /> - This will be the same as groundwater Conc <br /> Obtained from Fate and Transport output <br /> AVERAGE Concentration (over exposure duration) <br /> (used to calculate carcinogenic risk) <br /> Exposure Duration (years) 6 0 30 <br /> MTBE 4 07E-04 4 07E-04 <br /> Concentration used to calculate hazard index <br /> (Averaged over 7 years or exposure duration, if less than 7 years) <br /> Exposure Duration (years) 6 0 7 0 <br /> MTBE 4 07E-04 4 07E-04 <br /> �ncentration in Indoor Air (mg/mA3) <br /> obtained from Fate and Transport output <br /> AVERAGE concentration lover exposure duration) <br /> (used to calculate carcinogenic risk) <br /> Exposure Duration (years) 6 0 30 <br /> MTBE 1 lIE-07 1 11E-07 <br /> Page 2 <br />