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PERMFILE135175
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PERMFILE135175
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Last modified
8/24/2016 10:35:54 PM
Creation date
11/26/2007 3:10:03 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1999058
IBM Index Class Name
Permit File
Doc Date
7/9/1999
Doc Name
YULE QUARRY FN M-99-058 SECOND ADEQUACY REVIEW OF APPLICATION MATERIALS FOR NEW 110 PERMIT
From
DMG
To
SIERRA MINERALS CORP
Media Type
D
Archive
No
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<br /> <br />sediment fencing may have to be employed at this road location, since the sediment pond downhill does not <br />function presently. Please comment. <br />The applicant has included a copy of the amended CDPHE discharge permit, under part (h). <br />Part (i) now includes a couple paragraphs describing the failed sediment control dam and sediment entering Yule <br />Creek. These, in addition to the unstable road described above, may result in a longterm failure to use BMPs for <br />the approved Stormwater Management Plan, by allowing a faulty situation to continue. It is acknowledged that the <br />previous operator (CYMC) may be responsible for much of the present conditions, but the new applicant must <br />ensure that these conditions are remedied and not allowed to continue. Failure to provide for such protections <br />against damage, even for "passively" allowing damages to migrate downhill onto areas eventually to be within the <br />permitted area, should not occur. When the London Lode portion of the proposed permit area is actually permitted, <br />therefore, its sediment should be contained, stormwater runoff controlled, and no new dump material allowed to <br />slough downhill onto the White Marble #2. Please comment on these items. <br />Mother item under part (i) is a brief description of the membrane liner under the diesel fuel tank. The present liner <br />is intact, but should be continually monitored for ruptures due to weathering or fallen rocks, and immediately <br />repaired or replaced if fuel containment is not assured. <br />Part (j) now includes a copy of the transferred well permit issued by the State Engineer's Office. <br />Part (k) states that no waste oil or other fluids resulting from the maintenance of diesel equipment will be stored <br />onsite; all such fluids will be transported offsite for disposal at a proper facility. This office will, therefore, <br />monitor the operation for such storage of waste fluids. Please be reminded that storage maybe permitted, if <br />adequate fluid contairunent is assured, and if a predetermined maximum amount is not exceeded. This storage <br />amount must be documented through calculating the necessary additional bond amount to cover costs of transport <br />and disposal. For the present, there will be no such storage. <br />Text in part (I) now contains several new paragraphs describing the sediment control structure on the lower, <br />northern end of the waste dump in the pernut area. It was built by CYMC, and presumably damaged by CYMC <br />during dumping of marble block, rendering it non-functional. Its location, however, is critical to catching sediment <br />carried in runoff from the south portal road (mentioned above} and all existing and future waste areas, since <br />virtually all surface drainage east of the portal roads leads there. The applicant acknowledges that the pond is <br />damaged, at this time of permit application. The applicant, therfore, must work to ensure that it is made functional <br />in a timely manner, preferably before the end of the 1999 construction season. To wait for forfeited bond monies, <br />resulting from possible Board action against CYMC, to be used to pay for such sediment pond repair, would not be <br />prudent. Please comment. <br />The applicant has stated in this submittal that no new material will be added to the surface in the area of the <br />sediment pond, or where it would adversely affect the stability of the lower waste slope azea. Stabilizing the toe of <br />the waste slope will be necessary before sloughing will stop, including areas onsite. Stabilizing work offsite may <br />be performed by aState-contracted operator using forfeited bond monies, but that might be one to two years from <br />now. Stabilizing work onsite should be regarded as the responsibility of the applicant, and to be performed soon. <br />Please comment. <br />The last paragraph concerning the sediment pond includes proposed dimensions and brief construction details. This <br />information appears adequate. Given an uncertain rate of sediment build up, the applicant has appropriately <br />committed to frequent monitoring to ensure pond capacity and/or permeability is maintained. <br />Exhibit D -Reclamation Plan <br />A few paragraphs have been added to clarify items mentioned in the original submittal. A statement in part (a) novv <br />specifies which portals will be closed by backfilling. These will be included in the reclamation bond calculation. <br />
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