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<br />WASTE DUST (CEMENT KILN DUST) -FORT COLLINS PLANT <br />Uptlatetl on Jury 7, 1999 <br />METALS (TCLP RESULTS; PPM): <br /> <br />DATE Ag As Ba Be Cd Cr Cu Mn Ni Pb Sb Se TI Zn Hg <br />1990 0005 1.60 006 0.310 NT NT NT 0.73 NT 0006 NT NT 0.0030 <br />PCA, 7/12/91 008 ND 1.16 ND ND 0.075 NT NT ND ND ND 0.218 00132 NT ND <br />3!!1/93 ND ND 3.93 ND ND 0.150 NT NT ND 0.11 ND 0.520 ND NT ND <br />t Dtr, 1995 ND ND 0.50 ND ND ND NT NT ND ND ND ND ND NT ND <br />2 Otr, 1995 ND ND 0.50 00020 ND ND NT NT ND ND ND 0.600 ND NT ND <br />4 Qtr. 1995 ND ND 1.20 ND ND ND NT NT ND ND ND 0.200 ND NT ND <br />1 Otr, 1996 ND ND 0 10 ND ND ND NT NT ND ND ND 0 100 ND NT ND <br />2 Dtr. 199fi ND ND 0.60 0.0020 ND ND ND ND ND ND ND 0.200 ND ND ND <br />3 Otr, 1996 ND ND 0.80 ND ND ND ND Ni ND ND ND 0.200 0.2000 NT ND <br />1 Cltr 1997 ND ND 0.70 ND ND ND ND ND ND ND ND ND ND ND ND <br />2 Dtr, 1997 ND ND 0.80 0.0030 ND 0100 0.10 ND ND ND ND 0.300 0 1000 0.30 NO <br />3 Dtr, 1997 0.10 ND 2.20 0.0040 ND 0.300 D 40 ND ND 0.40 0.40 0.600 0 2000 0.30 ND <br />4 Otr, 1997 ND ND 1.30 0.0040 ND 0.200 010 ND ND 0.30 010 0.300 0.6000 O.tO ND <br />1 Otr, 1990 ND ND 1.30 00040 ND 0.200 ND ND ND ND ND 0.400 0.3000 ND ND <br />2 Otr, 1998 0 10 ND 1.30 0.0020 ND 0.200 D 2D ND ND 0.30 0.10 0.600 0.4000 ND ND <br />3 atr 1998 ND ND 1.40 ND ND 0.300 ND ND ND ND ND 0.600 0.2000 ND ND <br />4 O[r. 1998 ND 0.300 130 00040 ND 0.200 ND ND ND 0.30 020 0.800 O.SOOD ND ND <br />t Otr, 1999 0.10 0400 0.60 ND ND o.zoD ND ND ND 0.20 ND 0.700 0.4000 020 ND <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />MINIMUM= ND ND 0.10 ND ND ND ND ND ND ND ND ND ND ND ND <br />MA%IMUM= 010 040 3.93 0.0040 0.0600 0.3100 04000 ND ND 0.7300 0.4000 08000 06000 03000 00030 <br />AVERACE~ 0.10 0.2d 1.18 0.0031 0.0600 0.2032 0.2000 NA NA 0.3343 0.2000 0.3966 0.2977 O.T250 0.0030 <br />STD DEV = 001 0.21 0.85 00010 00775 01414 0.1970 0.1414 02368 01830 00957 <br />OET LIMIT= 01 0.1 0.001 01 01 01 01 01 01 01 01 01 0.02 <br />LIMIT- 3.0 3.0 100.0 hL L0 5.0 M hL NL 3.0 h2 1.0 NL ,1Z 0.?0 <br />ND -Not oeleclabie: r e , belo+, minimum detection limit NT - Not testetl <br />40 CFR 261 24 Table I "Maximum Conceniratron of Contammanls for the Tox¢Ay Characteristic (NL = No limit cited in the Ia01e) <br />EXHIBIT C PAGE 3 <br />