PERMFILE136889

• Permit No: M1998084
• IBM Index Class Name: Permit File
• Doc Name: CONSTRUCTION MATERIALS REGULAR 112 OPERATION RECLAMATION PERMIT APPLICATION FORM
• Media Type: D
• Archive: No

GRAND JUNCTION
LINCOLN DeVORE, Inc.
GEOTECFINICALENGINEERS-GEOLOGISTS
1441 Momr St TEL. [phone]
Grand Junction. CO 61505 FAX. [phone]
' Februan' 19, 1998
' Grand Junction Pipe
PO Box 1849
Grand Junction, CO 81052
' Rc: Proposed Whitcvva[er Pit. Whitcwater, CO
t At vottr request. personnel from this office have completed a ground reconnaissance of the above referenced site
m order to determine the general geologic conditions and consUamts relating to the development of a graccl
ceVaction pit. to be known as the Whitcuvatcr Pit. This study vvas performed in a manner so as to be in general
' compliance with the requirements of C.R.S. 30-28- l01 (Senate Bill 35). Following arc our findings.
TRACT LOCATION & DESCRIPTION
' The tract lies within a part of the south half of [hc south half of Section 14 and a portion of the north half of the
north lialfof Section 23. Tow~tship 2S, Range I E of the Utc Principal Meridian. Mesa Counh. Colorado. The
tract is bounded on the north be the existing Whitewater Creek Drainage, on the west by the Union Pacilic
Railroad right of wac. The Raihoad right of vvrev is on the cast bank of the Gunnison River. The cast boundan
of this tract is approximately 250 to 300 feet west of 32.7 Road. The sric is approximately I miles south of the
unincorporated Whitevyater arcs at Callow Crcek and US Highway 50. This Vac[ is approximatclc'/: miles west
' of IJS Highvcac 50 and is accessed from Colorado Slate Highway 141 and south to 32.7 Road. The tract
contains approxiniatch 20 acres.
The topographc of the Vact is relatively Flat. being located m the ancient flood plain of the Gunnison RIyCr and
Whitcucatcr Crcek The ground has a gentle slope twvmrd the north northuucst. The silt has an clcyation of
approximately 4000 feet above sea level. using the U.S.G S. 7-I/2 minute mapping of the Whitevcater, CO
quadrangle The tract has bccn used for minor agricultural purposes in the past. The tract may hayc bccn
subjected to minor imgation in the past and is drained toward the northvyest and west, eventualfc entering the
Gunnison Ricer. approximately 100 to 200 feet west. Suii'acc drainage is poor and the subsurface drainage is
' good
GENERAL GEOLOGY
' The general geoloeu of this area consists of a thick series of ccn gcnth~, cast northcasheardlc dipping
scdimcntan beds. cnu cred vyitli thin deposits of unconsolidated alluvial coarse grained and fine grained soils.
Geologically the silt is located immediately cast of the cast nortlteas[ margin of the Uncompahgre Uplift. The
main axis of the Uncompahgre Uplift is approximatclc_ 30 milts vccst of this site. The axis of the Montrose
Buntline is approximately 2(1 miles cast of this silt. The Ladder Park Monoclinc and Fault Complex. along [hc
case northeast margin of the Uncompahgre Uplift is approximatch' 9 miles west of this site. In general. this
' particular arcs. ucilhm a few miles of the proposed gravel pit has fairh• uncomplicated swetural geologic
fcahires. This general arcs is underlain by [hc Dakota Formation. which outcrops on the vccst bank of [hc
Gunnison Riycr, approximately 1500 feet west of this site. This particular sift may be underlain by a vcn' thin
' basal unit of the Mancos Shale Formation. The Mancos Sllale outcrops in the small hills approximatel}• 2500
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