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2016-09-16_PERMIT FILE - M2016010
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2016-09-16_PERMIT FILE - M2016010
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Entry Properties
Last modified
12/8/2020 12:48:05 AM
Creation date
9/19/2016 3:34:16 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2016010
IBM Index Class Name
Permit File
Doc Date
9/16/2016
Doc Name Note
Response #5
Doc Name
Adequacy Review Response #5
From
Transit Mix Concrete Co.
To
DRMS
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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Transit Mix Concrete Co. <br /> b. Deadman Creek <br /> The unnamed tributary to Little Fountain Creek, herein referred to Deadman Creek, is an <br /> ephemeral stream that flows southeast through the proposed quarry area before flowing north <br /> through Deadman Canyon and under Highway 115. The stream flows into Little Fountain <br /> Creek, which flows east-southeast for approximately 6 miles, where it discharges into Rock <br /> Creek. Rock Creek continues flowing southeast for another 5 miles before discharging into <br /> Fountain Creek. Fountain Creek flows south approximately 26 miles and discharges into the <br /> Arkansas River near Pueblo, Colorado. The Deadman Creek watershed extends <br /> approximately 1 mile to the west of the project area with a maximum elevation of approximately <br /> 8100' msl, and this area is approximately 0.3 square miles. Deadman Creek leaves the project <br /> area at an elevation of approximately 6880' msl. The proposed quarry was designed to <br /> minimize impacts to Deadman Creek. No mining will occur within 100 feet of the centerline of <br /> the stream and the bottom of the North Pit Extension will remain at least 10 feet above the <br /> stream thalweg at all times. Figure G-5 shows the typical relation of the stream to the mining <br /> activities. The area between the edge of the pit and the stream will drain toward the stream. <br /> The disturbed area will drain toward the pit and sediment pond within the pit area. The crossing <br /> provides access from the North Pit area to the Northeast Pit area. Creek crossing designs are <br /> discussed in Section 4c of this exhibit. <br /> c. Drainage Discussion <br /> Little Turkey Creek and Deadman Creek flow to the Arkansas River via different drainages, <br /> and Transit Mix will maintain segregation of these waters to prevent a trans-basin diversion. <br /> The mine plan was developed to delay any disturbance of the Deadman Creek watershed until <br /> there was sufficient space inside the pit to establish separate drainages for each watershed. <br /> Primarily, a berm will be constructed and maintained along the existing watershed divide. This <br /> will divert waters to separate ditch and sediment pond systems. The Little Turkey Creek water <br /> will flow through sediment ponds before being discharged into Little Turkey Creek, and the <br /> Deadman Creek water will flow through sediment ponds before being pumped to Deadman <br /> Creek for discharge. Disturbed areas in the Deadman Creek drainage will be backfilled to <br /> establish positive drainage into Deadman Creek for reclamation. Pumping will only be required <br /> during the operational period. <br /> d. Surface Water Design <br /> Surface water will be diverted around the operation o r flow through sediment ponds to minimize <br /> impacts to surface waters. Control of sediment and flow volumes will be accomplished through <br /> the stormwater management control features. To control flow volumes, rates, and sediment <br /> discharge, a series of sediment ponds and energy dissipation drop structures are used. These <br /> structures control the outflow volumes and are designed around a 100-year, 24-hour storm event <br /> for both the operational and reclamation periods. As the quarrying progresses, the stormwater <br /> Hitch Rack Ranch Quarry Permit Application M-2016-010 <br /> September 15, 2016 G-10 <br />
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