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1996-02-13_HYDROLOGY - M1977378
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1996-02-13_HYDROLOGY - M1977378
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Last modified
2/13/2021 3:33:40 PM
Creation date
6/29/2012 7:01:59 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1977378
IBM Index Class Name
HYDROLOGY
Doc Date
2/13/1996
Doc Name
Mitigation Work Plans for Sunnyside Settlement
From
DMG
To
Sunnyside Gold Corp
Permit Index Doc Type
Hydrology Report
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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999 <br /> SUMMARY OF AGREEMENT BETWEEN SUNNYSIDE GOLD CORPORATION <br /> AND WATER QUALITY CONTROL DIVISION <br /> " final reclamation plan for the Sunnyside Mine includes installation of <br /> Sunnyside Gold Corporations( SGC ) Permits issued by the Colorado Water <br /> bulkheads in the American and Terry Tunnels. These tunnels have discharge <br /> source discharges of pollutants,subject <br /> Division('Division"). once valves are closed in the installed seals SGC and the Division disagree <br /> Quality Controls resulting from filling the mine would be pointrotect the <br /> whether any seeps and spring the state to decide. In order to settle this dispute and to p <br /> ro se to mitigate historic water impacts and mine waste at <br /> to permits. SGC sued the Division,asking sand springs which may <br /> water quality in the Animas River,SGC and the Division p problems attributable to seep <br /> several inactive mines in order to offset for any quality p the court. <br /> result from mine closure. This settlement is reflected in a Consent Decree that will be ordered by as <br /> of the mitigation program will be measured at the water quality reference point,in the Anon <br /> The successuali monitoring station A-72). <br /> River below its confluence with Mineral Creek'downstream of Silverton(water q ty parameter that will be <br /> Both parties have agreed that the concentration of dissolved oebedicator water <br /> cgou p11e ed,the water quality <br /> p quality is protected.In order for theagreement <br /> used to assure water q ty p if it has deteriorated. <br /> (dissolved zinc)at A-72 will be compared statistically to baseline water quality data to determine <br /> SGC will first plug the American and Terry <br /> Tunnels and then begin to divert and treat water from Cement <br /> American Tunnel treatment plant. This will create a water quality L s on'ch include:,to protect fil g the mine <br /> e Animas ar <br /> Creek at the Amen on the <br /> during the mitigation work. SGC will then complete all the projects <br /> with alkaline water' removal of the mine waste dump at the south fork of Cement Creek;removal of the surface <br /> ead at <br /> e Gold <br /> ce <br /> e Eureka townsite;mitigation of surface mine wastes and installation has come Ito physilcal equilibrium and <br /> tailings at th <br /> period of post mitigation sampling occurs. The general agreement will <br /> Mine; and mitigation at the Koehler Longfellow Mine site. Altar e p point has not <br /> following completion of the A-list projects a p is shows that water quality at the reference <br /> have been successfully comp <br /> leted if a statistical an—, complete projects on the"B"List and other projects to <br /> deteriorated. If water quality criteria are not met,SGC can comp p j <br /> from the system. These projects include mitigation of the Boulder Creek Mill tailings;cts�dted f the <br /> remove more zinc portal,and closure of the London Mine portal• <br /> West tailings,closure of the Columbus Mine Po prior to work starting. <br /> involving third parties will require the owners approvalTunnels <br /> completed,SGC's discharge permits for the American and Terry <br /> once the agreement is successfully comp sand springs that result from the <br /> will be terminated and SGC will have no future liability in thSGC ana the Division�rem to art,,and for 30 <br /> portal plugging. If the agreement is prematurely termin ted, to <br /> will treat any flows from the American Tunnel and the flows treatmenCreek a esult ofbankruptcy treatment Plant <br /> months,SGC vvi <br /> capacity. If the agreement is prematurely terminated and SGC wing on a financial surety provided by SGC. <br /> Division will be able to continue treatment during litigation by <br /> agreement,SGC will continue to be bound by its discharge permits and Mined Land <br /> During the term of the agreem requirements,SGC will <br /> Reclamation permit,including the monitoring requirements. In addition to those monitoring eq <br /> • solved metals,sulfate,hardness and pH at A-72,and where possible at,above and below four mitigation <br /> monitor dissolved three stream mouth locations <br /> sites(Koehler Longfellow,Gold Prince Mine,Columbus Mine,and London Mine), <br /> with Cement Creek,mouth of Cement Creek,mouth of Mineral Creek)and other <br /> (Animas Rive <br /> r above its confluence <br /> locations within the Animas River Basin. <br />
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