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Table 5-1 - Groundwater Preliminary Cleanup Levels <br />Project No. 190583, K-C Worldwide Site Upland Area, Everett, Washington <br />Surface Water, <br />Aquatic Life - <br />Predicted <br />Protective <br />Concentrations <br />(IM #23) <br />(ma-wac)(ma-cwa 304a)(draft IM23)(hh-cwa 304a)(hh-wac)(hh-cwa 303c)(sw-b)(hh)(pot)(vi-c)(pql) <br />Total Petroleum Hydrocarbons <br />Gasoline Range Hydrocarbons in ug/L 1700 1700 (draft IM23)100 1700 (marine) <br />Diesel Range Hydrocarbons in ug/L 2100 2100 (draft IM23)50 2100 (marine) <br />Oil Range Hydrocarbons in ug/L 2100 2100 (draft IM23)250 2100 (marine) <br />Total TPH in ug/L 2100 2100 (draft IM23)250 2100 (marine) <br />Dissolved Metals <br />Antimony in ug/L 640 180 90 1000 90 90 (hh)0.05 90 (marine) <br />Arsenic in ug/L 36 36 0.14 10 0.14 0.098 0.14 5 footnote e 0.5 5 (marine) <br />Barium in ug/L 2000 0.5 2000 (pot) <br />Cadmium in ug/L 9.3 7.9 41 41 7.9 (ma-cwa 304a)0.02 7.9 (marine) <br />Chromium (Total) in ug/L 240000 240000 240000 (hh)0.2 240000 (marine) <br />Copper in ug/L 3.1 3.1 2900 2900 3.1 (ma-wac)0.1 3.1 (marine) <br />Lead in ug/L 8.1 5.6 5.6 (ma-cwa 304a)0.02 5.6 (marine) <br />Mercury in ug/L 0.025 0.94 0.025 (ma-wac)1.8 0.0005 0.025 (marine) <br />Nickel in ug/L 8.2 8.2 4600 190 100 1100 100 8.2 (ma-wac)0.2 8.2 (marine) <br />Selenium in ug/L 71 71 4200 480 200 2700 200 71 (ma-wac)1 71 (marine) <br />Silver in ug/L 1.9 1.9 26000 26000 1.9 (ma-wac)0.02 1.9 (marine) <br />Thallium in ug/L 0.47 0.27 6.3 0.22 0.22 0.22 (hh)0.02 0.22 (marine) <br />Zinc in ug/L 81 81 26000 2900 1000 17000 1000 81 (ma-wac)0.5 81 (marine) <br />Conventionals <br />Formaldehyde in ug/L 1600 footnote f 100 1600 (marine) <br />Un-Ionized Ammonia in mg/L 0.035 0.035 (ma-wac)0.01 0.035 (marine) <br />Free (Hydrogen) Sulfide in mg/L 0.002 0.002 (ma-cwa 304a)0.001 0.002 (marine) <br />Dissolved Sulfide in mg/L 0.002 0.002 (ma-cwa 304a)0.05 0.05 (pql) <br />pH in standard units 7.0 to 8.5 6.5 to 8.5 6.5 to 8.5 (ma-wac)6.5 to 8.5 (marine) <br />Volatile Organic Compounds <br />1,1-Dichloroethene in ug/L 20000 4100 4000 23000 4000 4000 (hh)280 0.5 280 (vi-c) <br />1,2,4-Trimethylbenzene in ug/L 80 520 1 80 (pot) <br />1,3,5-Trimethylbenzene in ug/L 80 370 1 80 (pot) <br />1,4-Dichlorobenzene in ug/L 900 580 200 22 200 200 (hh)49 0.05 49 (vi-c) <br />2-Butanone in ug/L 4800 3,700,000 10 4800 (pot) <br />2-Chlorotoluene in ug/L 160 1 160 (pot) <br />4-Chlorotoluene in ug/L 1 <br />Acetone in ug/L 7200 3.2.E+07 10 7200 (pot) <br />Benzene in ug/L 23 16 1.6 23 1.6 1.6 (hh)24 0.35 1.6 (marine) <br />cis-1,2-Dichloroethene (DCE) in ug/L 16 0.5 16 (pot) <br />Ethylbenzene in ug/L 21 130 270 31 6900 31 21 (draft IM23)6100 0.5 21 (marine) <br />Isopropylbenzene in ug/L 800 2000 2 800 (pot) <br />Methylene chloride in ug/L 1000 250 100 590 100 100 (hh)11000 2 100 (marine) <br />n-Propylbenzene in ug/L 800 4900 1 800 (pot) <br />p-Isopropyltoluene in ug/L 800 2000 1 800 (pot) <br />sec-Butylbenzene in ug/L 800 1 800 (pot) <br />Styrene in ug/L 100 18000 0.5 100 (pot) <br />tert-Butylbenzene in ug/L 800 1 800 (pot) <br />Toluene in ug/L 102 520 410 130 19000 130 102 (draft IM23)34000 0.5 102 (marine) <br />Vinyl chloride in ug/L 1.6 0.26 0.18 3.7 0.18 0.18 (hh)3.4 0.2 0.2 (pql) <br />Xylenes, total 106 106 (draft IM23)1000 710 3 106 (marine) <br />Potable <br />Groundwater <br />Screening <br />Levelc <br />Aquatic Protection <br />Groundwater <br />Preliminary Cleanup <br />Level and Basis <br />Surface Water <br />ARAR - Human <br />Health - Ch. 173- <br />201A WAC <br />APPLICABLE GROUNDWATER CRITERIA <br />Marine Surface Water Criteria for Establishing Method B Surface Water Cleanup Levelsa <br />Groundwater <br />Screening <br />Level <br />Protective of <br />Vapor <br />Intrusion for <br />Industrial Use <br />(Method C)a <br />Surface Water <br />ARAR - Aquatic <br />Life - Ch. 173- <br />201A WAC <br />Surface Water <br />ARAR - Aquatic <br />Life - National <br />Recommended <br />WQ Criteria <br />(CWA 304a) <br />Applicable <br />Practical <br />Quantitation <br />Level (PQL)d <br />ANALYTE (BY GROUP) <br />Human Health Protection <br />(marine) <br />Surface Water Screening <br />Level for Marine <br />Protection <br />Surface Water, <br />Method B Human <br />Health, Most <br />Restrictive, <br />Standard <br />Formula <br />Surface Water, <br />Method B Human <br />Health, Most <br />Restrictive, <br />Adjusted for <br />ARARsb <br />Surface Water <br />ARAR - Human <br />Health - National <br />Recommended <br />WQ Criteria <br />(CWA 304a) <br />Surface Water <br />ARAR - Human <br />Health - 40 CFR <br />131.45 <br />(CWA 303c) <br />Aspect Consulting <br />6/22/2021 <br />P:\121\049\T\reference docs\Tables 5-1 thru 5-4 - Prelim CULs <br />Table 5-1 <br />K-C Upland Area RI/FS <br />Page 1 of 3