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URS Operating Services. Inc. Rattle Mountain Gold - Trip Report <br />Revision: 0 D <br />START2, EPA Region Vlll Table 2 <br />Contact No. 6g- W -00 -11 B ate: 9/2000 <br />Analytical Data- ppb //tgn Page 6 of u <br />Battle Mountain Gold, Costilla County, Colorado <br />June 15, 2000 <br />Analyte <br />MCLs <br />'Ug/l <br />Colorado State Drinking Water <br />Standards, 1995 <br />RS -01 <br />Rito Seco <br />Background <br />RS -10 <br />Duplicate of <br />RS -01 <br />RS -02 <br />Rito Seco <br />mid -site <br />(Photo 4) <br />RS -05 <br />Rito Seco <br />Most downstream on Mine <br />Property <br />(Photo 3) <br />RSR -06B <br />Abandoned channel along <br />the Rim Seco <br />(Photo 1) <br />RSR -06A <br />Abandoned channel along <br />the Rito Seco <br />Most downstream sample <br />(Photo 2) <br />BAS - <br />Seep from the bog area <br />south of the Rito Seco <br />Aluminum <br />NA <br />164 U <br />133 U <br />494 <br />662 <br />130,000 <br />6,200 <br />809 <br />Antimony <br />6 <br />4.8 <br />4.0 U <br />4.0 U <br />4.0 U <br />4.0 U <br />4.0 U <br />5.3 <br />Arsenic <br />500 <br />4.0 U <br />4.0 U <br />4.0 U <br />4.0 U <br />55.5 <br />7.0 U <br />4.0 U <br />Barium <br />2000 <br />19.9 <br />19.7 <br />25.5 <br />31.4 <br />2,870 <br />288 <br />60.8 <br />Beryllium <br />4 <br />1.0 U <br />1.0 U <br />1.0 U <br />1.0 U <br />10.5 <br />1.0 U <br />1.0 U <br />Cadmium <br />5 <br />1.0 U <br />1.0 U <br />1.0 U <br />1.0 U <br />1.0 J <br />1.0 UN <br />1.0 U <br />Calcium <br />NA <br />14,000 <br />14,100 <br />15,600 <br />19,000 <br />144,000 <br />68,500 <br />160,000 <br />Chromium <br />100 <br />2.0 U <br />2.0 U <br />2.0 U <br />2.0 U <br />95.3 <br />3.9 <br />2.0 U <br />Cobalt <br />NA <br />1.0 UJ <br />1.0 UJ <br />1.0 UJ <br />1.0 UJ <br />76.6 <br />3.2 J <br />1.0 UJ <br />Copper <br />2.0 UJ <br />2.0 UJ <br />2.0 UJ <br />2.0 UJ <br />282 <br />9.2 J <br />2.0 UJ <br />Iron <br />NA <br />250 <br />230 <br />762 <br />901 <br />551,000 <br />18,800 <br />688 <br />Lead <br />2.0U <br />2.0U <br />2.0U <br />2.0U <br />133J <br />7.5 UJ <br />3.2 UJ <br />Magnesium <br />NA <br />3,280 <br />3,270 <br />3,580 <br />3,890 <br />57,200 <br />11,100 <br />38,900 <br />Manganese <br />NA <br />20.6 <br />20.3 <br />99.6 <br />103 <br />12,700 <br />2,990 <br />166 <br />Mercury <br />2 <br />0.10U <br />0.10U <br />0.10U <br />0.10U <br />0.15 <br />0.10U <br />0.10U <br />Nickel <br />100 <br />3.0 U <br />3.0 U <br />3.0 U <br />3.0 U <br />109 <br />4.4 <br />3.0 U <br />Potassium <br />NA <br />1,200 U <br />1,240 U <br />1,750 U <br />2,070 <br />28,100 <br />6,490 <br />5,700 <br />Selenium <br />50 <br />4.0 U <br />4.0 U <br />4.0 U <br />4.0 U <br />4.9 <br />4.0 U <br />4.5 <br />Silver <br />NA <br />2.0U <br />2.0U <br />2.0U <br />2.0U <br />2.0U <br />2.0U <br />2.0U <br />Sodium <br />NA <br />2,890 <br />2,940 <br />33,300 <br />56,700 <br />10,700 <br />10,700 <br />61,300 <br />Thallium <br />2 <br />4.0 UJ <br />4.0 UJ <br />4.0 UJ <br />4.0 UJ <br />20.0 UJ <br />4.0 UJ <br />4.0 UJ <br />Vanadium <br />NA <br />2.0 U <br />2.0 U <br />2.0 U <br />2.3 <br />309 <br />11.5 <br />2.0 U <br />Zinc <br />NA <br />2.0 UJ <br />2.0 UJ <br />2.3 J <br />3.0 J <br />588 <br />21.4 <br />2.0 UJ <br />C snide <br />200 <br />10.0U <br />10.0U <br />10.0U <br />10.0U <br />10.0U <br />10.0U <br />10.0U <br />J The associated numerical value is an estimated quantity because quality control criteria were not met. Presence of the analyte is reliable <br />U The analyte was not detected above the contract required quantitation limit. <br />UJ The reported amount is estimated because quality control criteria were not met. The anllyte was not detected. <br />BOLD Exceeds Colorado MCLs <br />PAStart2 \Battle Mountain Gold \Data Table 06- 15- OO.wpd <br />Permit Number L< + t 1919 C ('d-- <br />Class: OPermit <br />Section/- x---- __._._._.-._._. _._- _._._._._._._._._._._._._.. <br />Class: O Revision <br />TYpe/Seq: <br />Claw: Report b Hydro neal f'f"T `�-'• <br />Dm T.__ <br />O - �plryp� -Il- - <br />A IIIa1dIAl1IIl��ll�llllll��lllll menl Olnspection <br />0 0 0 1 3 0 3 1 <br />