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<br />- Hezen Research, Inc. DATE July 16, 1998 <br /> 4601 Indiana St. • Golden <br />Colo. 80403 HRI PROJECT 002-30W <br />N/1ZEN , <br />Tel: (303) 279-4501 HRI SERIES NO . F483/98 <br />- FAX: (303) 278-1528 DATE RECD 6/30/98 <br /> CUST. P.O.# COC No. 21593 <br />ITEC-Environmental Colorado Inc . <br />Maxine Stewart <br />707 17th Street, Suite 3120 <br />Denver, CO 80202 <br /> REPORT OF ANALYS IS <br />SAMPLE NO. F483/98-1 <br />SAMPLE IDENTIFICATION: Tailings Pond -sampled o n 06/30/98 @ 0930 (2nd Otr. Gold Hill Mi ll 1998) <br /> DETECTION ANALYSIS <br />PARAMETER RESULT LIMIT METHOD DATE ANALYST <br />Aluminum, mgA (D) <0.05 0.05 EPA 200.7 7/2/98 MR <br />Arsenic, mg/I (D) 0.005 0.001 EPA 206.2 7/2/98 DY <br />Cadmium, mg/I (D) <0.0003 0.0003 EPA 213.2 7/2/98 DY <br />Chromium (VI), mg/I <0.005 0.005 SM 3500-Cr D 6/30/98 LH <br />Copper, mg/I (D) <0.02 0.02 EPA 220.1 7/2/98 PW <br />Iron, mg/I (D) 0.31 0.02 EPA 236.1 7/2/98 PW <br />Lead, mg/I (D) 0.003 0.001 EPA 239.2 7/2/98 DY <br />Manganese, mg/I (D) 0.33 0.02 EPA 243.1 7/2/96 PW <br />Mercury, mg/I (D) <0.0001 0.0001 EPA 245.1 7/6/98 DP <br />Selenium, mg/I (D) <0.005 0.005 EPA 270.2 7/2/98 DY <br />Silver, mg/I (D) <0.0002 0.0002 EPA 272.2 7/2/98 DY <br />Uranium, mg/I (D) 0.006 0.002 ASTM D2907 7/2/98 EDF <br /> @ 1340 <br />Uranium, pCi/I (D)•• 4 1 ASTM D2907 7/2/98 EDF <br /> @ 1340 <br />Zinc, mg/I (D) <0.02 0.02 EPA 289.1 7/2/98 PW <br />"Uranium results reported assuming the activity of natural U = 6.77 x 10-7 Ci/gm. <br />CODES: <br />(T) =Total (D) =Dissolved <br />(S) =Suspended (R) =Total Recoverable <br />(PD) =Potentially Dissolved <br />< =Less Than <br />By: ~~~~~r' "" <br />Robert Rostad <br />Laboratory Manager <br />