Laserfiche WebLink
1. Maintain Present 2.2 <br />SGC SCENARIOS <br />AM. TUNNEL AM. TUNNEL AM. TUNNEL CEMENT CK. CEMENT CK ANIMAS R. ANIMAS R. <br />DISCHARGE ZN CONC. ZN LOAD ZN CONC. ZN LOAD ZN CONC. LOAD <br />(MGD) (ug /1) lb /day LOW HIGH LOW HIGH LOW HIGH LOW HIGH <br />300 5.5 1134 627 45 656 468 191 164 1798 <br />Conditions 572 283 200 2590 <br />2. Bulkhead at SGC 1.23 300 3.1 <br />Property Bound. .1 -.5 15.1 ) 13 -63 <br />ll 1247 689 50 721 585 290 205 2655 <br />61 1644 908 66 951 630 315 221 2885 <br />.93 2 -6 15 -46 <br />- f.15 26 1360 752 54 787 600 297 209 2721 <br />106 1984 1096 79 1147 669 336 234 3082 <br />3. Total Portal 2.2 15.1 272 2642 1460 106 1528 744 378 261 3462 <br />Bulkhead .1 -.5 15.1 13 -63 <br />- 13 NN 1247 689 50 721 585 290 205 2655 <br />-45-3-6( 1644 908 66 951 630 315 221 2885 <br />1.7 -2.1 2 -6 40 -160 <br />40 1446 799 58 836 607 302 213 2770 <br />160 2438 1347 98 1410 720 365 252 3344 <br />4. Terry Tunnel: Assume most Zn in Eureka Gu. is attributable to Terry Tunnel. Mine plug <br />will reduce Zn levels in Animas River segment 3(a) 10% during high flow and 30% at low <br />flow. This applies in both scenarios 2 and 3. <br />` Water Quality Standard for segment 4(a) just below Silverton 0.52 mg /1 based upon <br />ambient conditions <br />a Flow into American Tunnel beyond proposed property boundary bulkhead <br />b Flow through mine workings which discharges to Cement Ck following mine closure <br />