2010-05-17_REVISION - M1996049 ‎(7)‎

• Permit No: M1996049
• IBM Index Class Name: REVISION
• Doc Date: 5/17/2010
• Doc Name: Adequacy Response Submittal
• From: Everist Materials, LLC
• To: DRMS
• Type & Sequence: AM1
• Email Name: ECS
• Media Type: D
• Archive: No

PO Box 1150
28755 Hwy #9
Silverthorne, CO 80498
Phone [phone]
Everist Materials, LLC Fax [phone]
May 6, 2010
Eric Scott
Environmental Protection Specialist
Division of Reclamation, Mining and Safety
1313 Sherman St., Room 215
Denver, CO 80203
RE: Adequacy Response Submittal AM-01, Maryland Creek Ranch, Permit No. M-1996-049
Dear Eric:
Thank you for your review of the Maryland Creek Ranch 112 construction materials permit amendment
application. Enclosed is additional information addressing issues identified in your technical adequacy
letter as well as a summary of information provided:
Application Form - see the attached corrected application form
Exhibit C - Please clearly show the additional 9.92 acres of affected land that will be added to the
existing permit area via this amendment on the Mining Plan map.
Revisions have been made to the attached Exhibits C-1 and C-2 to clearly identify the 9.92
additional acres.
Exhibit D - Mining Plan (Rule 6.4.4): Please describe the construction of, and show the proposed
configuration of the "outlet structures" that are intended to convey the captured flow of Vendette Creek
from Cell 3, through Cell 4 and 5 and into Maryland Creek. Please also show how it has been determined
that these structures, as well as Maryland Creek, will allow adequate flow to prevent adverse effects
from the capture and re-routing of Vendette Creek during a 100 year peak flow event.
An extensive hydrology study was completed by Tetra Tech, Inc. to ensure that the introduction
of the 100 year flow from Vendette Creek into Cell 3 will be conveyed through Cell 3, 4 and 5
and into Maryland Creek without incident. The outlet structures conveying the flow are shown
on the revised and attached version of Exhibit F.
EXHIBIT E - Reclamation Plan (Rule 6.4.5): The current reclamation plan states on the first page that
"'between 6 and 12 inches of overburden and topsoil will be placed on the lakeshore slopes above the
waterline". Please remove the above referenced statement from the first page of the reclamation plan.
Topsoil should be handled separately from the overburden used to backfill slopes. The "'Topsoiling"
paragraph on the second page contains a more appropriate description of how the topsoil should be
handled and replaced. Because the site would be expected to have a surplus of topsoil available for
reclamation, the Division recommends that 8 to 12 inches of topsoil be replaced in area E
MAY 17 2010
of Redamatim,