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ENFORCE26070
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ENFORCE26070
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Entry Properties
Last modified
8/24/2016 7:34:09 PM
Creation date
11/21/2007 11:12:31 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1988112
IBM Index Class Name
Enforcement
Doc Date
5/7/1992
Doc Name
MEMO DRAFT NOV & ORDER FOR BMRI
From
AGO
To
MLRB
Media Type
D
Archive
No
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<br />3att;a "c~;~`ain Gold <br />NOPV Abatement Requirements <br />page 2 <br />i <br />Include a schedule for implementation. Following approval of (this <br />technical revision, BMG shall implement the treatment method i <br />accordance with the plan. Appropriate frequency and distribution of <br />monitoring of the tailings and plant circuit shall be proposed within the <br />application and subsequently conducted to verify the progress nd success <br />of the remedial treatment. Monitoring results, covered by an appropriate <br />cover letter report shall be submitted to the Division weekly during the <br />detoxification program. <br />BMG will be permitted to operate the processing plant, includi g the <br />introduction of unprocessed ore, until the projected tailings uality has <br />been achieved. At that point in time BMG will cease operationof the <br />plant pending approval to recommence operation by the Division. <br />Monitoring of cyanide levels within the tailings slurry and li~uid shall <br />continue to verify the anticipated decay of cyanide levels fol owing the <br />cessation of the detoxification program, until cessation is ap~roved by <br />the Division. <br />The introduction of chemical compounds into the processing cir uit to <br />affect an immediate remedy of the tailings cyanide problem cou d <br />potentially create additional problems by amending the chemica <br />constituency of the tailings. The Division Cautions BMG that twill be <br />held responsible for any unanticipated results of its remedial actions. <br />Status: Partially Satisfied <br />- BMG submitted T.R. Application on April 3~ 1992. <br />- Division approved the T.R. on April 7, 19 2 with <br />three stipulations. One has been satisfi d. <br />(5) Leak Detection System Effluent Containment: <br />In the event that fluid is intercepted by the tailings fluid c 1lection <br />pond liner leak detection system, BMG shall design and impleme t an <br />automated system to minimize the development of hydraulic back pressure <br />within the leak detection system. This system is Intended to educe the <br />likelihood of compromising the secondary clay liner by interce ting and <br />withdrawing leakage. <br />In the event that Cyanide is detected within the leak detectio~ system <br />effluent, BMG shall design and implement a containment system o return <br />all effluent to the tailings impoundment, in order to prevent impact to <br />the environment. <br />Status: Satisfied - BMG has committed to repair of the primary liner if <br />a leak is detected in letter of April 16, 1992. <br />
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