2016-07-14_PERMIT FILE - M2016010 ‎(4)‎

• Permit No: M2016010
• IBM Index Class Name: Permit File
• Doc Date: 7/14/2016
• Doc Name: Adequacy Review Response
• From: Transit-Mix Concrete Co.
• To: DRMS
• Email Name: AME
• Media Type: D
• Archive: No

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adverse effects to Mexican Spotted Owl. Please commit to providing the results of this
second survey to the Division.
Response: Two years of surveys for Mexican Spotted Owl have been completed,
and no owls were detected. The report summarizing the surveys and results are
included in Exhibit H.
Potential Effects
177) Comment: The applicant proposes developing a noise mitigation plan once the current
noise studies are completed. Please commit to providing this plan to the Division once it
is completed.
Response: The Exhibit H text has been revised to address this comment. Once the
noise study is finalized,a copy will be provided to CDRMS.
178) Comment: The applicant proposes completing a nesting raptor survey during nesting
season within '/2 mile of disturbance prior to initial construction and operations. Please
commit to providing the results of this survey to the Division once it is completed.
Response: A raptor nesting survey has been completed and is included in Exhibit
H.No active nests were found. The Exhibit H text has also been revised.
Please note that if the results of any ongoing surveys require a change to the Wildlife Exhibit
or Mining Plan,these changes may be done through the revision process.
Biological Evaluation-Prepared by BIO-Logic, Inc.
Other Wildlife
179) Comment: The text states that the site is located within a landscape that provides
migration corridors on ridges and in drainages, where elk make seasonal movements
between higher elevation summer ranges and winter ranges at generally lower elevations.
The site also provides seasonal or year-round habitat for other big game species
including mule deer,black bear, and mountain lion. What measures will the applicant
take to minimize impact to these species during operation?Will the migration corridors
be re-established post-mining?
Response: Transit Mix has met with Colorado Parks and Wildlife(CPW),and
CPW has not expressed significant concern over impacts to big game and
movement corridors,other than their recommendations in their comment letter,
which Transit Mix plans to implement. The CPW recommendations were
incorporated into the Mitigation Measures section of Exhibit H. The landscape will
not be altered in a way that would prevent big game movement.
Hitch Rack Ranch Quarry (M-2016-010)
Response to Comments—July 14, 2016