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GRPH2 DRPH3 ORPH4 <br />(µg/L)(mg/L)(mg/L) <br />MW-1 03/31/17 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 <br />1577.64 05/12/17 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 <br />01/30/19 <150 ----<0.40 <1.0 <1.0 <1.0 <2.0 <3.0 -- <br />MW-2 03/31/17 490 <0.26 <0.43 1.5 <1.0 3.3 <1.0 4.6 5.4 <1.0 <br />1577.08 05/12/17 200 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 <br />01/30/19 <150 ----<4.0 <1.0 <1.0 <1.0 <2.0 <3.0 -- <br />MW-3 03/31/17 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 <br />1577.02 05/12/17 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 <br />01/30/19 <150 ----<0.40 <1.0 <1.0 <1.0 <2.0 <3.0 -- <br />MW-4 03/31/17 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 <br />1576.72 05/12/17 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 <br />01/30/19 <150 ----<0.40 <1.0 <1.0 <1.0 <2.0 <3.0 -- <br />MW-5 03/31/17 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 <br />1574.23 05/12/17 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 <br />01/30/19 <150 ----<0.40 <1.0 <1.0 <1.0 <2.0 <3.0 -- <br />MW-6 03/31/17 <150 <0.25 <0.42 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 <br />1576.47 05/12/17 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 <br />01/30/19 <150 ----<0.40 <1.0 <1.0 <1.0 <2.0 <3.0 -- <br />DUP:051217 (MW-3)05/12/17 <150 <0.25 <0.41 <0.40 <1.0 <1.0 <1.0 <2.0 <3.0 <1.0 <br />DUP:013019 (MW-2)01/30/19 <150 ----<0.40 <1.0 <1.0 <1.0 <2.0 <3.0 -- <br />1,000/8004 0.500 0.500 5 1,000 700 <br />Notes: <br />1Chemical analyses conducted by TestAmerica Laboratories, Inc. located in Spokane Valley, Washington. <br />2Gasoline-range petroleum hydrocarbons (GRPH) were analyzed by Northwest Method NWTPH-Gx. <br />3Diesel- and oil-range petroleum hydrocarbons (DRPH and ORPH, respectively) were analyzed by Northwest Method NWTPH-Dx <br />4BTEX were analyzed by EPA 8260. <br />5Cleanup level is 1,000 µg/L; 800 µg/L when benzene is detected. <br />6Cleanup level for total xylenes (o-xylene and m,p-xylene) is 1,000 µg/L. Concentrations were summed to determine compliance. <br />Bold = detection is greater than reporting limit; EPA = Environmental Protection Agency; MTBE = methyl tert-butyl ether; MTCA = Model Toxics Control Act <br />mg/L = milligrams per liter; µg/L = micrograms per liter; NA = not analyzed; MTCA = Model Toxics Control Act; NE = not established; <br />Volatile Organic Compounds (µg/L)4 <br />Benzene <br />1,0005 <br />MTBE <br />Table A-2 <br />MTCA Method A Cleanup Levels <br />Toluene Ethylbenzene o-Xylene m,p-Xylenes Total Xylenes <br />Summary of Chemical Analytical Test Results1 – Groundwater <br />Kittitas County Lower Shop - 505 West 14th Avenue <br />Ellensburg, WA <br />Well Number and Top of <br />Casing Elevation (feet) <br />Date <br />Measured <br />Petroleum-Range Hydrocarbons <br />File No. 0504-119-01 <br />Table A-2 | March 7, 2019 1 of 1