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GENERAL53476
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Last modified
8/24/2016 8:39:00 PM
Creation date
11/23/2007 8:39:10 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1983141
IBM Index Class Name
General Documents
Doc Date
3/13/1992
Doc Name
MEMO CASH MINE & MILL PN M-83-141 BOULDER CNTY FOUR POSSIBLE VIOLATIONS
Media Type
D
Archive
No
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<br /> <br />Mr. Jim Stevens 4 <br />In the late Fall and early Summer months of 1991, Mr. Tatman and several other <br />COM, Inc. employees were engaged in mining activities at the site near Colorado Springs. I <br />received numerous telephone calls from Mr. Tatman from a site near Pueblo, Colorado. He <br />informed me that he was utilizing afront-end loader and a crushing and screening plant to <br />process ore at this site. During this same period, I saw evidence that some of this material had <br />been brought to the Gold Hill Mill and processed over the gravity circuit in the mill. <br />Farly in June, 1991, I observed that a water pump had been installed behind the Hazel <br />A mine bulkhead and that water was being pumped to the mill via the existing Cash mine <br />water line. Upon entering the mill I observed Mr. Tatman and another employee of COM, <br />Inc. processing concentrates in the concentrate thickener tank and disc filter circuit. I believe <br />~k that these are the same concentrates that were later placed on the ground near the mill for the <br />~~ ~ ~ <br />V},~: ! ~ purpose of drying them outside. Mr. Tatman has stated that these concentrates originally came <br />\~ti; F from Humboldt County, Nevada. An analysis of a sample of this concentrate was recently <br />obtained from Skyline Labs of Wheat Ridge, Colorado. Their analysis report indicated that <br />r~~y iI this concentrate contained 0.09330 Copper; 2.030 Lead; 1.54'0 Zinc; and 9.1 ppm Mercury. <br />~ ` Since learning that this concentrate was imported from Humboldt County, Nevada, I have <br />requested that this sample be tested for Arsenic, Antimony, Cadmium and Selenium. A copy <br />of the results of this analysis will be forwarded to you as soon as it is received. I believe that <br />this concentrate would have picked up considerable amounu of flotation reagents in processing <br />this concentrate through the Gold Hill Mill's flotation concentration and filtration circuit. I <br />also believe that considerably more than 25 pounds of this concentrate was left in the area <br />where it was deposited for drying outside the mill building, and that a good deal of this <br />material was not placed upon a plastic liner. All of this activity took place prior to COM, Inc. <br />obtaining the necessary Succession Approval from the Colorado Mined Land Reclamation <br />Board, which was not granted until October 18, 1991. <br />~~`,~' Tn October or November of 1991, the Gold Hill Mill began processing material trucked <br />/~ in from the Bueno mine near Jamestown. This material from the Bueno mine was being <br />5 <br />~~~' processed in the mill at the time of the inspection of the permit site by the Mined Land <br />Reclamation Division staff. Since that time, I have been informed that COM, Inc. has <br />purchased 400 tons of ore from another Boulder County mine operator, and plans to transport <br />this ore to the Gold Hill Mill for processing and wncentration. <br />Following the receipt of the Minded Land Reclamation Division Inspection Report, I <br />contacted Mr. Rob Helmick, who is in charge of the Boulder County Zoning Department. I <br />
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