2019-09-30_REVISION - M1988108

• Permit No: M1988108
• IBM Index Class Name: REVISION
• Doc Date: 9/30/2019
• Doc Name: Adequacy Review Response #3
• From: Arcosa Lightweight
• To: DRMS
• Type & Sequence: AM3
• Email Name: ECS
• Media Type: D
• Archive: No

ARCOSA
approximate hydraulic conductivity of 1x10`cm/s or less, as discussed in Exhibit D and E. The
SEO has evaluated the condition of the quarry and determined that the source of water is natural
runoff tributary to Coal Creek. Considering the nature of the quarry materials, the proposed
reclamation conditions shown on Exhibits F-1 and F-2, the source of water to the quarry area,
and the location of groundwater,the likelihood of groundwater exposure in the post-reclamation
condition is negligible. It is possible that groundwater occurring as infiltrated stormwater within
the alluvial materials, present between 0 ft and approximately 20 feet below ground surface
(bgs), may drain into the proposed reclamation pond (Hogan Pond), as indicated by the SEO;
however, this water is intermittent.
DRMS Reference (underline) and Comment(italics)
EXHIBIT M - Other Permits and Licenses (Rule 6.4.13): A statement identifyiniz which of
the following permits, licenses and approvals the Operator/Applicant holds or will be seeking in
order to conduct the proposed mining and reclamation operations: effluent discharge permits,
air quality emissions permits, radioactive source material licenses, the State Historic
Preservation Office clearance, disposal of dredge and fill material (404) permits, permit to
construct a dam, well permits, highway access permits, U.S. Forest Service permits, Bureau of
Land Management_ permits, county zoning and land use permits, and city zoning and land use
permits.
No permitting is required through Jefferson County for this site%peration?
Arcosa's Response:
The Lightweight Aggregate facility operates under an Official Development Plan (ODP)
through Jefferson County. An updated table of permits and licenses is provided in Exhibit M,
which is included in Attachment 9.
Arcosa has been in communication with Jefferson County to inquire whether the ODP will
require modification as a result of this Amendment 3. At this point Jefferson County is still
evaluating the need for a minor modification to the development plan. If such a modification is
required, Arcosa will work with Jefferson County to modify the ODP after DRMS approves the
amendment..
DRMS Reference (underline) and Comment(italics)
EXHIBIT N - Source of Legal Right to Enter (Rule 6.4.14): You must provide the source of
your right to enter and initiate a mining operation on the affected land.
Permittee will need to demonstrate that Arcosa is the legal landowner for the "processing
facility"area. They will also need to demonstrate that they have a valid lease for the remainder
of the permit area with the landowner (Hogan)for the purposes of mining and reclamation.
Arcosa's Response:
An updated lease with the Hogan family that shows the current name of the company, Arcosa