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eme CONTINENTAL MATERIALS CORPORATION
<br /> the quarry exhibit west-side-up relative motion. The structural throw on the Rampart Range Fault
<br /> is estimated to be approximately 4,300 feet (Morgan et al, 2003).
<br /> Historically, minimal groundwater has been encountered at the site, and there has been no need
<br /> to pump water during mining operations. No seeps have been observed emanating from the high
<br /> walls. One spring discharges in the vicinity of the sediment basin in the curve of the access road
<br /> leading up to the quarry. The water coming from the spring likely originates in the large drainage
<br /> northwest of the quarry. The path it takes underground is unknown, but it likely flows through the
<br /> sandstone and fractures in the limestone and granite adjacent to and in the pit. Observations of
<br /> the spring flow suggest that water from the pit is conveyed to the spring considering springs flows
<br /> increase when runoff collects in the pit. These drainage paths have been maintained throughout
<br /> the backfilling of the pit, and they are expected to continue draining the pit and preventing
<br /> saturated conditions throughout the reclamation period. This spring discharges into a sediment
<br /> basin and is allowed to flow on down the drainage. This prevents any interference with
<br /> downstream water rights.
<br /> This aggregate operation does not use or generate acid-forming or toxic producing materials,
<br /> and thus no release of pollutants to groundwater is expected.
<br /> Additional details on the groundwater system and previous investigations can be found in Exhibit
<br /> G text in the Amendment 3 submittal from March 4, 2013.
<br /> References
<br /> Higginson, B., &Jarnecke, J. (2007). Salt Creek BAER-2007 Burned Area Emergency Response.
<br /> Provo, UT: Uinta National Forest.
<br /> Morgan, M.L., Siddoway, C.S., Rowley, P.D., Temple, J., Keller, J.W., Archuleta, B.H., and
<br /> Himmelreich, Jr., J.W., 2003, Geologic Map of the Cascade Quadrangle, El Paso County,
<br /> Colorado, Colorado Geological Survey Open-File Report 03-18, Denver, CO, 1:24,000-
<br /> scale.
<br /> NOAA, 2013. NOAA Atlas 14 Precipitation-Frequency Atlas of the United States Volume 8
<br /> Version 2.0:Volume 8 Version 2.0: Midwestern States(Colorado, Iowa, Kansas, Michigan,
<br /> Minnesota, Missouri, Nebraska, North Dakota, Oklahoma, South Dakota, Wisconsin).
<br /> U.S. Department of Commerce, National Oceanic and Atmospheric Administration,
<br /> National Weather Service, Silver Spring, Maryland. http://hdsc.nws.noaa.gov/hdsc/pfds/
<br /> (accessed January 19, 2016).
<br /> Schwab, P and Warner, R, 2005. SEDCAD 4 for Windows Design Manual and User's Guide. Civil
<br /> Software Design.
<br /> Pikeview Quarry Amendment 4
<br /> G-8
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