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TABLE 4 <br /> SGLP Analytical Results <br /> Varra Coal Ash Project <br /> Weld County, Colorado <br /> CGRS No. 1-135-2755 <br /> Sample Ex At Sb As Ba Be B Cd Cr Co Cu Fe Pb Mn Ni Se Ag TI V Zn U Ng <br /> Ash with Gypsum <br /> (C Silo) 1 0.28 NO NO 0.71 NO 340 NO 0.033 NO NO NO NO NO NO NO NO NA NO 0.010 0.094 NA <br /> Bottom Ash 1 0.073 NO NO 0.12 NO 080 NO NO NO NO NO NO 0.010 NO NO NO NA NO NO 0.057 NA <br /> Cherokee Silo • <br /> Ash 2/3 1 NO NO NO 1.10 NO 16 NO 0.033 NO NO NO NO NO NO 0.31 NO NA 0.04 NO 0.26 NA <br /> Cherokee 4 Fly Ash <br /> with Sodium 1 NO NO NO 1.10 NO 16 NO 0.06 NO NO NO NO JNDND 0.340 NO NA 0.07 0.005 0.23 NA <br /> Recycled Concrete 1 0.32 NO NO 0.11 NO 0.13 NO 0.068 NO 0.012 0.22 NO O NO NO NA 001 0.011 0.054 NA <br /> Recycled Asphalt 1 0.12 NO NO 0.067 NO 0.58 ND ND NO NO 0.074 NO O NO NO NA NO NO 0.051 NA <br /> Gravel Quarry Water NO NO NO 0.010 ND 0.30 NO 0.06 NO NO 0.056 NO O ND ND ND ND ND 0.027 NA <br /> State water Quality s.o o.00s o.oso z.o o.00a o.7so o.00s 0.100 0.050 .za1.o o.3as.o o.oso 00 ooso 0.050 o.00z o.1002.02soo.00z <br /> Standards A P P P P A P P A A/S S/A P P P P A A A P <br /> Notes: <br /> NO-Not Detected <br /> NA-Not Analyzed <br /> EX-Extraction • <br /> mg/L=milligrams per liter / <br /> A-Agricultural Standard 1 ' <br /> P-Primary Drinking Water Standard a 6� <br /> S-Secondary Drinking Water Standard <br /> Page 1 of 2 <br />