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General guidelines for substitute water supply plans for sand and gravel pits
Colorado. Division of Water Resources.
2009
Colorado Department of Natural Resources, Division of Water Resources
Denver, Colo.
Updated September 30, 2009
Online resource; title from PDF caption (viewed February 2017)
Sand and gravel mines and mining Groundwater
Colorado
1 online resource (12 pages)
eng
NR5/10.8/G78/2009/INTERNET
http://hdl.handle.net/11629/co:25733
972507095
2017-03-02T17:32:47.832Z