2012-09-06_REVISION - M2008070 ‎(20)‎

• Permit No: M2008070
• IBM Index Class Name: Revision
• Doc Date: 9/6/2012
• Doc Name: AM-01 APPLICATION
• From: WESTERN GRAVEL
• To: DRMS
• Type & Sequence: AM1
• Email Name: THM
• Media Type: D
• Archive: No

Construction Materials Regular (112) Operation Reclamation Permit
Application and Design and Operations (D &O) Plan Informational
Cross - Reference
(Western Gravel, LLC)
Exhibits Reference
Exhibit E- 6.4.5(1),(2)
(Reclamation Plan)
Exhibit F- 6.4.6(a),(b)
(Reclamation Plan Map)
activities will be constructed concurrent with mining activities,
see D &O Plan Section 3.5, Figures 3 and 4, and Appendix I.
Phase 1 of WCR Gravel Pit will be developed into a solid waste
landfill following mining completion. The landfill will only
accept energy and production wastes (e.g. drill cuttings and mud)
and petroleum contaminated soil. Development will be
conducted in a phased approach as each area of gravel pit is
mined out. Facility design and operations are discussed in the
D &O Plan Sections 3.1 through 3.4.8 and design details are
provided in Figures 4 through 6.
Final cover design of solid waste cells is discussed in D &O Plan
Section 3.4.9 and final grading plan of a typical cell is shown on
Figure 7 including cross - section details on Figure 8. Surface
water control details are shown on Figure 9. It should be noted
that because of recent CDPHE regulatory changes, the final
cover design will likely require certain modifications. However,
the general concept will not change.
Solid waste landfill closure and reclamation is discussed in D &O
Plan Section 5.0. Unless noted otherwise, several criteria (e.g.
weed control, seed mix, monitoring) discussed in Permit M -20-
08 -070 Exhibit E remain the same. Reclamation discussions of
the developed landfill are located in D &O Plan Sections 5.0
through 5.6. The intent of reclamation is to return the property
ultimately to former historic rangeland use.
(a) The Phase 1 gravel pit footprint will be developed into a solid
waste landfill following mining completion. Development will
begin with Cell A and include stormwater retention pond 1
located outside the gravel pit footprint, transition to Cell B
including a stormwater retention pond, and be completed with
Cell C. Stormwater control drainage ditches and retention ponds
and landfill cells are shown on D &O Plan Figures 3 and 4.
Landfill development phasing is shown on D &O Plan Figure 3A,
Figure 7 shows the final grading plan at completion of Cell A,
Figure 8 illustrates cross - section details, and retention pond 1
construction details are shown on Figure 9.
It should be noted that Cells B and C and the additional retention
pond will be constructed similar to Cell A and retention pond 1.
However, until mining is completed in these areas, exact design
details will not be known.
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