Laserfiche WebLink
<br />• <br /> <br />~~ ~ Cotter Corporation <br />~ ~~ <br />~v~`_y General Offiee <br />April 2, 1981 <br />Mr. Robert Campbell <br />Colorado Department of <br />Natural Resources <br />Division of Mined Land <br />Reclamation <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />Re: File No. 79-94, C-JD-7 <br />Open Pit Uranium Mine, Montrose County <br />~ III IIIIIIIIIIIII III <br />D I A L 3 0 3- 2 3 2- 8 2 1 8 <br />9305 WEST ALAMEDA PARKWAY SUITE 201 <br />LAKEWOOD. COLORADO 80226 <br /> <br />q;~k _ ? 1931 <br />MINED L1ANDp~RECLA^^MATION <br />Cc!o. Depi. of 1°_fUf ~~ !'.eJ~~~~.~•~ <br />Dear Mr. Campbell: <br />Pursuant to Section 103(6)1.6 of the Rules and Regulations of the <br />Colorado Mined Land Reclamation Board, Cotter Corporation submits herewith <br />a Notice of Temporary Cessation pertaining to operations at the JD-7 open <br />pit uranium mine in Montrose County. <br />Production at the above captioned mine is being temporarily suspended <br />due to adverse uranium market conditions and inflationary pressure on mining <br />costs. <br />Cotter will conduct routine surveillance and maintenance to ensure that <br />the mine remains in operational condition, that soil losses due to wind <br />and water erosion are minimized, and that site security inspections are <br />conducted. <br />Referring to Figure 1, attached hereto, the "as-built" contours of the <br />spoil pile indicate that the spoil pile is approximately 64 acres in size, <br />and that runoff from the watershed above the spoil material will flow as <br />depicted. A site inspection by a representative of Cotter's corporate office <br />on March 9, 1981 verified the unobstructed drainage of the watershed above <br />the mine. <br />During the period of non-production, if necessary, Cotter will control <br />wind and water erosion on the spoil pile by applying the chemical soil binder <br />(e.g. COHERE X, AEROSPRAY 70, NALCO 5820, Soilcrete, etc.) which, after testing, <br />is determined to be the most effective. The soil binder will be applied <br />to the top and side slopes of spoil pile by Cotter's Finn hydroseeder. This <br />equipment has been used at Cotter's Canon City Mill for the application of <br />NALCO 8820 to the 40 acres of old tailings located at that site. Additionally, <br />it should be noted that the spoil pile soil type (i.e., unconsolidated shales <br /> <br />