ARCHIVED REPORTS_SITE CHARACTERIZATION REPORT 1999

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TABLE C-2. AREA 15,MULTIMEDIA EXPOSURE PATHWAY EVALUATION,LANDSCAPE MAINTENACE WORKER SCENARIO NORTH SHORE PROPERTIES I CITY OF STOCKTON HOUSING AND REDEVELOPMENT AGENCY STOCKTON,CALIFORNIA 1,2- trans-1,3 Bromodichlore n-Butyl sec-Butyl tert-Butyl Dichloroben- 1,2- Dichloro- Isopropyl- 4-Isopropyl- Methyl Ethyl n-Propyl 3 Acremyrn Units Value Benzene Toluene Fth(benzene Xylenes MTBE mahane benzene benzene benzene Chloroform zene Dichloroethane P.Mperre benzene toluene Ketone benzene S!Yrcne. PCE Exposure Parameters: Soil Concentration - Cs mg/kg Chem-SpecParticulate Concentration Ce mg/m, Cbcm-Spec Groundwater Concentration C, mg/L Chem-Spec 2.33E-02 8.60E-04 2.80E-02 3.20E-02 1.50E-03 9.00E-04 3.00E-03 9.00E-03 1.20E-02 3.00E-03 3.40E-03 1.30E-03 1.30E-03 1.65E-02 4.70E-03 1.20E-03 1.96E-02 9.00E-04 740E-03 Exposure point airconcermationhum groundwater' C. mglmr Chem-Spec ME-05 7.54E-08 1.671!05 4.50E-07 535E-08 2.36E-06 7.22E-08 3.16E-07 2.89E-07 7.68E-07 4.77E-09 1.43EA7 3.64E-08 7.96E-06 2.27E-06 3.59E-10 9.45E-06 4.34E-07 2.36E-07 Ingestion Rule-Adult AdINGR, mg/day 484 -- -- -- -- - -- -- -- __ -- - __ -- __ Ingestion Conversion Factor CF kglmg I,OOE-06 Inhalation Rate-Adult Ad IR, ma/day 20 -- -- -- -- -- -- -- -- -- -- -- -- -- -- - -- -- -- Skin Surface Area-Adult SAa emz 3600 -- -- -- -- - -- -- '- - -- Soil Adherence Factor-Adult AFA mg/cma 0.2 -- -- -- -- -- -- -- -- -- -- -- -- -- -' -' '- '- "' Dermal Absorption Factor ABS Unilless Chem-Spec 1.00E-01 1.00E-01 3.00E-01 1.0013-0€ 1.00E-01 1.00E-0t I.00E-ol 1.00E-01 1.00E-01 1.00E-01 €.0012-01 1.00E-01 1.00E-01 1.00E-01 1,00E-01 LOOE-01 LOOE-01 1.00E-01 1.00E-01 ' Dermal Conversion Factor CF kg/mg 1.00E-06 -- }, Exposure Frequency-Adult Ad EF days/year 250 -- -• -- -- -- - -- -- -- -- -- -- '- - ExposureDuration-Adult Ad ED years 25 -- -- - -- -- '- -' - -" Body Weight-Adult Ad BW kg 70 -- -- -- -- -- - -- -- -- -- -- -- -- -- -. t Averaging Time-Nonearcinugeoic-Adult Ad At,,, days 9125 - - -- -- -- -- -- -- -- -- -- - -- -- -- -- -- t AveragingTime-Carcinogenic At,- days 25550 -- -- -- -- -- -' '- -- Chronic Daily Intakes: GW Inhalation-Noncareinogeuic-Adult GWAd IHL CDI_ mg/kg-day Chem-Spec 2.22E-06 1.47E-08 3.26E-06 8.80E-08 1.05E-08 4.62E-07 3.41E-03 6.18E-08 5.65E-08 1.50E-07 9.33E-10 2.80E-08 7.13E-09 1.56E-06 4.44E-07 7.03E-11 1.85E-06 8.49E-08 4.63E-08 GW Ingestion-Noncarcinagenic-Adu€t GWAd INGCD1, mg/kg-day Chem-Spec -- - -- -- -- -- -- -- - -- -- -- -- -- -- -- -- r GLV Dermal-Nonraminogenic-Adult GWAd DER CD€,x mg/kg-day Chem-Spec -- -- -- -- -- -' -- -- I Soil Inhalation-Noncarcinogenic-Adult SoilAdINH CDI„ mg/kg-day Chem-Spec Soil Ingestion-Nonearciaogenic-Adult StalAdING CDI, mg/kg-day Chem-Spec -- -- -- -- -- -- -' { Soil Dermal-Noncarcinogenic-Adult SoiIAdDER CDIQ mg/kg-day Chem-Spte --_ -- -- -- -- -- -' -' -- -- '- GWInhalation-Carcinogenic-Adult GWAd IHL Me mglkg-day Chem-Spec 731E-07 NC NC NC NC 1.65E-07 NC NC NC 5.37E-08 NC 9.99E-09 2.55E-09 NC NC NC NC NC 1.65E-08 GW Ingestion-Carcinogenic-Adult GWAd MG CDIe mg/kg-day Chem-Spec -- -- -• -- -- -- -- -- -- -- -- -- - -- GW Dermal-Carcinogenic-Adult GWAd DER CDIe mpjkg-day Chem-Spec -- -- -- -- -- -- -- -- -- -- _ -- - - - Soillnhalation-Carcinogenic-Adult Soi]AdINHCDI, mg/kg-day Chem-Spec -- - -- -- -- "" SoilIngestion-Carcinogenic-Adult Soi]AdiNGCDL mVkg•day Chem-Spec -- -- -- -- -- -- -- -- -- -- -- •- -- -- _ - - -- -' Soil Dermal-Carcinogenic-Adult SoiIAdDER CDI, mg/kg-day Chem-Spec -- -- -- -- " -- -- -- '- y Toxicity Criteria: -- 1j verified Reference Dose-EHL R1D-inti mg/kg-day Chem-Spec 1.70E-03 I.IOE-01 2.90E-01 2.00E-01 8.60E-01 2.00E-02 I.00E-02 €.0DE-02 LOOS-02 8.60E-05 5.70E-02 tAE-03 5.70E-03 1.10E-01 1.10E-0I 2.90E-OI 1.00E-02 2.90E-0€ 1.10E-01 i Verified Reference Dose-ING RID-]ng mg/kg-day Chem-Spec -- -• -- -- -- -- -- -- -- - -- 3.0E-02 -- -- -- -- - - VerifiedReferenceDose-DER` RfD-Der mg/kg-day Chem-Spec -- 3.00E-03 -- -- - -- -- -- - - CancerS]opeFaclor-IHL CSF-Inh (mg/kg-day)"' Chem-Spec 1.00E-01 NC NC NC NC 1.30E-0€ NC NC NC 1.90E-02 NC 9.1E-02 9.10E-02 NC NC NC NC NC 2.10E-02 j Cancer Slope Factor-ING CSF-Ing (mg/kg-day7-` Chem-Spec - NC -- -- -- - -- 9.1E-02 -- -- - -- -- -- -- Cancer Slope Factor-DER' CSF-Der (mg/kg-day}-' Chem-Spec -- NC - -- -- -- •- -- -- 9.10E-01 -- -- -- - -- -- -- Nancamm*genic Hazards: GW Hazard Quotients-Adul€-IHL GW AdHQ-Ihl unitless Chem-Spec L30E-03 1.34E-07 1.12E-05 4.40E-07 1.22E-08 2.31E-05 1.41E-06 6.18E-06 5.65E-06 1.75E-03 1.64E-08 2.00E-05 1.25E-06 1.42E-05 4.03E-06 2.43E-10 I.85E-04 2.93E-07 4.21E-07 GW Hazard Quotients-Adult-€ng GW Ad HQ-Ing unitless Chem-Spec GW Hazard Quotients-Adult-Der GW Ad HQ-Der unitless Chem-Spec -- -- -- -- -- -- -- - -- -- -- -- ` GWHazard Index-Adurt GW Ad uniless Soil Hazard Quotient-Adult-IHL Soil Ad HQ-Ihl unitless Chem-Spec Soil Hazard Quotient-Adult-Ing Soil Ad HQ-Ing unitless Chem-Spec Soil Hazard Quotient-Adult-Der Sail Ad HQ-Der unitless Chem-Spec -- - -- -- - -- -- -- -- -- '- -" -- - "" "" i Sell Hazard Index-Adult Soil Ad III unitless Carcinogenic Risks: GW Risk-INH GW RISK-lHL unitless Chem-Spec 7.91E-08 NC NC NC NC 2.€512-08 NC NC NC 1.02E-09 NC 9.09E-10 2.32E-10 NC NC NC NC NC 3.47E-10 - GWRisk-ING GW RISK-ING unitless Chem-Spec -- NC GSV Risk,DER GW RISK-DER unitless Chem-Spec - NC -- - - - -- -- - -- -- -' '- -- -- "" -" GW Total Risk GW Total RISK unitless -- 'r Sail Risk-INH Soil RISK-IHL unitless Chem-Spec Soil Risk-ING Soil RISK-ING unitless Chem-Spec -- -- -" -- -- -- -- -- - -- -- -- -- -- `- -- '- "" Soil Risk-DER - Soil RISK-DER unitless Chem-Spec S4iITalaERisk ScilTataIRISK unitless f 'Outdoor airconcentralion calculated by multiplying volatilization factor by chemical concentration in groundwater. `Demad reference dose and cancer potency factor calculated by dividing respective oral CSF by derma]absorption factor and multiplying oral RID by dermal absorption factor(ABS)(U.S.EPA,1991) NA Not an applicable exposure pathway. NC Not considered to be carcinogenic Chem-Spec Chemica€-spec€f€cparametervalue. kg Kilograms. - m'/day Cubic meters per day. mg/m' Milligrams per cubic meter. mg/kg-day Milligrams perkilogram-day. (mg/kg-day)` Reciprocal milligrams per kilogram-day. kg/mg Kilograms permilligrams mg/cm` milligrams persquare centimeter cm squmeceritimeler i Pa I n7''_ 1'.19.59 soxtn va-•>18 ln' I