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IU ~JCO.' '~ h_U4 <br />L ~~-J .JL YJ: • JJFII'1 rRl~l'1 .JU'a 447 ! fGb <br />ss~;!'ide gas will be collected with a hood and fan. The hydro- <br />~~•. s.~~''°ide and +~:..:rained air will then be bubbled through a <br />,•-•~-, aYasg~::,. in the f at tank, mixing in this tank and reusing the <br />hydrogen sulfide which redissolves. <br />".'!;s~ .^^>iudge which will come out of tie bottom of the settling <br />.:,;;.±; will be pumped into a filter press which will squeeze out <br />r.-~ er-~=ss water to produce a 30$ ~0 409 solid sludge, which <br />c~-~ !-. nt to a processing mill to reclaim the metals it will <br />_. n`... The squeezed out water will go back to the first <br />omr. .: a£ the settling tank. <br />.,. atetn has be^-t designed with a 30 gallons per minute <br />*' °icting valve at the front so flow surges will be <br />The system will be able to handle up to S00 ppm <br />:nteat_' +nd safely treat any sudden increase ~: <br />~ontami, ..t concentration of the incoming water. <br />,..~~.r. which wi.tl ~? discharged to the environment in Cash <br />G:~.?~ will have the lowing characteristics: <br />Water Discharged <br />ElCment Found from Treatment Plant <br />Total s~ispendpd solids 010.0000 <br />Copper 00.0100 <br />Zinc 10.0100 <br />t.ead <0.0100 <br />M+=r.cury <0.0001 <br />.:ts 6.9 <br />_ .;arisen of the analyses of the mine water and the receiv- <br />ir,.; -rtes shaves that the treated waters and, in some cases, <br />±t~~: ,~w mine waters are better than the receiving waters. <br />L E'~. _ f ____.____.______...-.__._-_~-_._~ _ <br />..:.~atened, or endangered plant species have been <br />c: in the Gold Hill area or on the proposed mine site. <br />t'h2 existing vegetation has been classified as a coniferous <br />forest consisting of mixed cone-bearing trees of the Pine fam- <br />il}• including pines iYinus), spruces (Picea~, and Douglas-fir <br />(Pseudctsuga>. These trees are resinous evergreens, with a <br />straight axis and a narrow crown and are characteristic o£ <br />acidic soils, often sprouting after fire. The coniferous for- <br />est is widespread and extensive throughout the general area, <br />and can be found at altitudes between 6,000 feet and 10,000 <br />feet. It encompasses the lower and upper montane zones which <br />includes Lodgepole and Ponderosa pine, Engelmann and Blue <br />spruce, Douglas-fir, and thickets of broad-leaved trees and <br />shrubs along stzeambanks. These zones are often referred to <br />as the transitional zone between the foothill and subalpine <br />zones. These zones overlap and telescope into each other, and <br />one zone may be present on a south slope while another will be <br />_ mound across the valley on the north s:~ pe at the Same alti- <br />tude. Plants which are charactexistical~y found in one zone, <br />car. sometimes be found in favorable areas in the neighboring <br />Zone above.. or .below their usual habitat. <br />^~ ...: =-i it , ~..cuyep,~ ~.e pin+: , and Engelmann spruce are found at <br />hl>~. ~.: cl.<_~var.ions ar.3. Pc2nur: rosN pine at lower elevations scat- <br />tered in stands of pure ar+~ mixed trees. Douglas-fir is con- <br />sid+;xed the Climax, or oxiginal, forest type in this area be- <br />fore the boom days of mining in the 1900'x, when .these trees <br />were cut or destroyed by forest fires. The present stands of <br />Ponderosa and Lodgpole pine and Engelmann spruce came in after <br />1900. <br />Lfmber pine and Blue spruce are also present as isolated trees <br />and in small stands. Rocky Mountain juniper and Quaking aspen <br />can be found in the area between the Hazel A mine portal and <br />the cash and who Do mine portals. Quaking aspen, Narrowlea£ <br /> <br />