REV101822

• Permit No: M1979045
• IBM Index Class Name: Revision
• Doc Date: 11/9/1999
• Doc Name: CHURCH PIT MLRB PN M-79-045 TR AND BOND ESTIMATE
• From: LAKEWOOD BRICK AND TILE CO
• To: DMG
• Type & Sequence: TR3
• Media Type: D
• Archive: No

THE L~E~oD BFIICK AND TIL~~MPANY
Manufacturero Of • FACE 8 PAVING BRICK • SPECIAL SHAPES 8 THIN BRICK VENEER
OFFICE AND YARDS: 1325 JAY STREET
LAKEWOOD, COLORADO 80274-2052 • TELEPHONE [phone]
FAx [phone]
November 9, 1999
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RECEIVED ~-~3
Mr. Carl Mount
Division of Minerals and Geology
1313 Sherman St., Suite 215
Denver, CO 80203
Dear Mr. Mount
RE: Church Pit, MLRB Permit # M-79-045
Technical Revision and bond estimate
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This submittal is being supplied as a response to your September 1999 annual pit
review. During that review you noted that the bond appeared to be inadequate for the
Division to reclaim the site if mining ended now and was not reclaimed. As you explained
to Steve O'Brian of Environment, Inc., your only option was to reclaim to the site using the
current plan and that meant moving the pit run gravel piles in Stages B & C back into the
clay mining area. This causes two problems, one the gravel is owned by Charles and Perry
McKay and they may object to the Division placing it in the hole for 'sloping when they can
sell it. And two the cost to do this elevated the bond so high that we can not afford it.
One alternative is to just reclaim the pit run gravel piles in place and cudfill the
slopes into the clay area to the approved grades. The following Technical Revision is a
detailed discussion of how this would work without making a significant change to the
Reclamation Plan. Mining will eventually remove the gravel piles so when mining ends in
the pit, the 1986 amendment maps will still apply.
Technical Revision
We propose an interim reclamation plan for this operation, that covers the current conditions
at the site until the gravel mining has been completed in Stages A, B, & C. This plan uses a
cutJfill slope reduction method to decrease the slopes from the current ground level to the
bottom of the clay mine and along the edges of the pit run gravel piles where they exceed 2h
to lv. There are two areas where sloping is needed that will have to be backfilled because
of the lack of room to cut/fill them. Also, some of the pit run material would have to be
used to cover the clay veins and clay storage areas so grass would grow. To make it Baser
to understand what we are trying to explain we prepared a simple map showing the location
of the various slope areas where work is needed to complete the reclamation plan as
proposed. A page is included showing typical cross sections for each work area designated
with a capitol letter on the map. For example azea A is the slopes on the east, pit run
gravel, pile that exceed 2h to lv. The map is color coded so all cut/fill slopes area green
and the backfill slopes are brown. Unless otherwise noted all other slopes are shallower or
on pre-law disturbed areas.
The attached table is the spreadsheet we used to calculate the estimated volumes in
each area. The heights, and approximate slope rates were obtained from field measurements
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