PERMFILE48772

• Permit No: C1981014
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: TR-1 to TR-5
• Section_Exhibit Name: EXHIBIT 15 Part 4
• Media Type: D
• Archive: No

DEPARTMENT OF NATURAL RESOURCES
Dev10 N. Gelchee, Eaea1M OlraNOr
MINED LAND RECLAMATION DIVISION
DAVID C. SHELTON, Olnetor
AleMerd D. Umm
(iaiemor
DATE: November 4, 1986
T0: Randy Price -
FROM: Jim Pendleton
RE: TECHNICAL ISION 3 APPLICATION - INCIDENTAL BOUNDARY CHANGE -
SOUTHFI MI -81-014)
I have reviewed the technical revision application submitted by Energy Fuels
Coal, Inc., for a 40 acre permit expansion into a parcel of land leased from
Corley. Information supplied within the brief. application, in cordunction
with the subsidence prediction data contained within the approved permit,
provides a definition of the potentially subsided area.
The application's brief description of the potentially impacted structures and
renewable resource lands includes the Florence City waterline. The proposed
• underground mining w111 potentially subside an approximately 2.500 foot long
segment of the Florence City waterline. which was recently rebuilt under a
pro,)ect financed by our Inactive Mine Lands Program. That portion of the old
Florence City waterline was rebuilt using high density polyethlene pipe
(HDPE). The City of Florence relies upon this pipeline to divert surface
water from New11n Creek to Its potable water reservoir. The specific pipeline
materials used in construction of this portion of the pipeline were chosen to
reduce the likelihood of subsidence disruption of the pipeline. Because of
the importance of the Newlin Creek water resource to the City of Florence's
population, however, it is appropriate to require Energy Fuels Coal, Inc. to
ensure the structural integrity of the pipeline. For this reason, I recommend
that we require Energy Fuels Coal. Inc. to install appropriate subsidence
monitoring monuments adjacent to the pipeline on a spacing of approximately
500 feet. These monlmlents should be surveyed at least quarterly, in order to
document the amount of subsidence which occurs during extraction of the coal.
The company should also perform periodic visual inspections of the potentially
affected portion of the pipeline to detect any obvious leakage evident on the
ground surface. Further, I recommend tbat we require Energy Fuels Coal, Inc.
to accept the respons1b111ty of repairing the pTpe111ne in the event that a
rupture were to occur. Energy Fuels should document that appropriate p1pe11ne
materials are readily available to complete an expeditious repair of the
plpeltne. in order to assure that the City of Florence's water ut111ty would
not be unduly Impacted. Assuming agreement of Energy Fuels Coal. Inc, to all
of the above conditions, I recommend approval of Technical Revision
Application No. 3.
. /v,~ r
cc: Mike Long
4983E
423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. [phone]