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REV105512
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REV105512
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Entry Properties
Last modified
8/25/2016 1:17:16 AM
Creation date
11/22/2007 1:26:59 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1978009
IBM Index Class Name
Revision
Doc Date
3/10/2000
Doc Name
ADEQUACY LETTER APACHE MINE AMENDMENT APPLICATION PN M78-009
From
ROBINSON BRICK CO
To
DMG
Type & Sequence
AM1
Media Type
D
Archive
No
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<br />Mr. James Dillie <br />Adequacy Letter, Apache Mine Permit No. M78-009 <br />Page 6 <br />Division but, also, to the adjoining landowners west of the permit area, <br />to the Division of Wildlife (because ojthe wildlife habitats downstream) <br />and, possibly, to the Water Quality Control Division (CDPHE). Since <br />this is a stormwater runofjissue, it appears that WQCD has jurisdiction <br />over this matter. You need to contact the WQCD to determine what, if <br />anything, needs to be done to remediate this problem. If you have an <br />approved stormwater Management Plan in place, it may need to be <br />revised If you do not have a discharge permit (CPDS), you may have to <br />apply for one. However, these decisions will be between you and the <br />WQCD. A copy of this letter will be sent to the WQCD. The operator <br />must submit copies ojall correspondence with the WCQD to the DMG. <br />Apache Mine has a stormwater management plan and operates under General stormwater <br />Permit COG-500719 originally issued January 1992 and re-issued September ]997. The <br />original stormwater management plan has been revised in August 1993, August 1994, <br />July 1998 and August 1999, however Section 5.3, Erosion and sediment control measures <br />remain as initially permitted in 1992. These measures, as taken from the stormwater <br />permit, are as follows. <br />Stockpiles of clay and topsoil, active pit areas, materials handling areas, and other <br />disturbed areas all have the potential to contribute sediment to stormwater <br />discharges. Sediment control of these areas takes two forms. <br />First, inactive azeas and areas in the process of reclamation are graded and <br />revegated so as to minimize the potential for erosion and sediment transport. The <br />revegated land runoff is primarily controlled with swales, temporary berms, and <br />undisturbed land vegetative filters. <br />Second, runoff originating in and passing through disturbed areas is contained by <br />means of grading, berm construction, in-pit ponds, and existing ranch ponds, so <br />that it is collected in a series of sediment ponds on the property (see maps 2-2, 3- <br />1, 3-2, and 3-3). These ponds are used for livestock watering. <br />During the summer of 1999, ROBCo continued to maintain, reinforce and re-establish <br />existing berms, temporary diversions and existing ranch ponds. Additionally in the <br />northern portion of the property, ROBCo improved, reconstructed and constructed <br />additional berms, diversions and alivestock-watering tank for stormwater control. <br />Robinson Brick responded to the Division's concerns in an August 30, 1999 letter <br />outlining these activities. This letter is incorporated into the adequacy response as <br />Attachment 1, however the specific changes are incorporated into the permit document <br />through Map Exhibits. Item 5 discusses the relevant text changes and Exhibit G now <br />includes the Livestock watering tank permit application and completion records. <br />
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