HomeMy WebLinkAbout1.0 Applicationef's\
OARREI - RESEARCH AND DEVELOPMENT COMPANY, RC.
A SUBRIDI ;RY OF OCCIDENTAL PETROLEUM CO,RPORATION
1855 CARRION ROAD, LA VERNE, CALIFORNIA 91750 PHONE (714) 593-7421
March 14, 1974
W. C. Milner
Garfield County Building Official
2014 Blake Ave.
Glenwood Springs, Colorado 81601
CFI`MICAL. FIESEARC?-:
DEVELOPMENT
ENGINEER!N0
ECONOMIC EVALUATION
Dear Bud:
Application is hereby made for a Special Use Permit for
industrial operations in Sec.25, T9S-R97W, 6th p.m. for
construction and use of a mineral disposal dump.
An environmental impact statement is enclosed in support
of the application.
Yours very truly,
GARRETT RESEARCH AND DEVELOPMENT COMPANY, INC.
Randall T. Chew,III
cc: R. D. Ridley
Enclosure
RTC/lf
ENVIRONMENTAL IMPACT STATEMENT TO ACCOMPANY APPLICATIONS
FOR SPECIAL USE PERMIT - MINERAL WASTE DISPOSAL DUMP, MINE
3C, LOGAN WASH OIL SHALE OPERATION.
LOCATION AND SCOPE
Application is made for a Special Use Permit for a mineral disposal
site located in the E1/2 NW1/4 Section 25 T7S - R97W, a side re entrant
off the north side of Logan Wash (Figure 1). The site will contain
approximately 500 thousand cubic yards of raw oil shale. (See cross
sections A -G and Figure 2).
Application was previously made for a Conditional Use Permit for
construction of a road and mine designated the "3C edit",
in this same parcel. The present applicatinn covers the mine dump that
will originate from these operations.
The material to be dumped will be raw oil shale rock with chemical
and physical characteristics virtually identical to those of oil
shale talus slopes that now exist beneath the mahogany ledge in
the same area. Purpose of the dump, other than servicing mining
operations in this parcel will be an experimental site for re -
vegetation, compacting, and slope stability experiments.
DESIGN AND CONSTRUCTION
The disposal pile at Garrett's 3A Adit, the present operation,
was constructed by end dumping plus a small amount of compaction.
The dump has proven to be exceptionally stable. Configuration of
the canyon suggests that similar methods be used at the 3C adit. No
problem is anticipated in maintaining slope and stability of the
pile if care is paid to compaction and trimming.
WATER
Construction of the dump will not have an adverse effect upon
underground water. Surface water may be somewhat affected. This
is covered under the site rehabilitation section of this appli-
cation. The material being dumped is raw oil shale and should
not affect either the salinity or the chemical balance of the
water.
USE OF ADJACENT LAND
The maximum extent of flow of dumped material during cloudburst,
etc. is expected to cease approximately 400 feet from the property
line. Extent of the material as dumped will be about 800 feet from
the property.
WILDLIFE AND DOMESTIC ANIMALS
Creation of the dump will not effect the migration routes or use
patterns for wildlife. No attractions should exist that would bring
wildlife to the area. Existing vegetation will be altered. Return
of the area to its original vegetal growth is covered in the Rehabil-
itation Plan.
TRUCK & AUTO TRAFFIC
The dump will not create any additional auto or truck traffic in
the area.
EMPLOYMENT
There will be no increase in employment due to construction of
the dump.
DISTANCE FROM ABUTTING PROPERTY
The toe of the pile will be approximately 800 feet from the nearest
abutting property.
VISUAL IMPACT
The dump is located 13.2 miles from DeBeque, 7 miles from the
county road on Roan Creek. The area is not visible from any
existing public access roads, hiking trails, etc.
INDUSTRIAL PERFORMANCE STANDARDS
Volume of Sound - The volume of sound generated by equipment
used to build the pile will be from 30 to 50 decibels. This
should be the only sound inherent to the construction and
maintenance of the area.
Vibration- No vibrations will eminate beyond property lines.
Emissions of Smoke & Particulate Matter - No smoke will be emitted
into the atmosphere. It is estimated that the pile will contain
5% dust. The pile of the 3A mine site has not been the source of
an unusual amount of blowing dust.
Emission of Heat, Glare, Radiation & Fumes - There will be no
emissions of heat, glare, radiation or fumes from the pile.
General - There will be no storage of flammables or explosive
solids or gasses at the dump
No materials or wastes will be deposited in such a manner that they
may be transfered off the property by any reasonably forseeable
natural causes or forces. The dump consists of "as mined" rock
only and will not present a fire hazard nor be attractive to
insects or rodents.
No potential hazards are anticipated that would necessitate the
installation of safeguards against water pollution.
SITE REHABILITATION
1. TOPOGRAPHY - The topography in the area is very steep (see
Figure 1) and the pile will fill only that part of the canyon below
the adit benches (less that moved to the revegetation study plot).
Slopes will be no steeper than the angle of repose of 36° as are
natural talus slopes in the canyon. The initial upper adit volume
will be 58,00 yd3, lower adit volume will be 60,000 yd3 for a total
initial dump of 118,000 yd3 or 2,600,000 tons of raw shale.
2. DRAINAGE - Natural drainage should not be affected by the dumping
as material will not be dumped across a major stream channel. Should
the need become apparent during construction of the dump, runoff
will be carried across the pile in a suitable lined channel and
conducted down the slope to the natural channel.
3. LEACHING - The material to be dumped is raw oil shale, not spent,
(retorted) shale. No leaching will be required.
4: PLANTING, MULCHING, ETC. - The applicant has retained VTN Colorado
Corporation to perform a preliminary environmental analysis on its
entire Logan Wash property. This study is expected to be complete
by May 1, 1974. In addition, the applicant has planned, in
cooperation with the Soil Conservation Service of the US Department
of Agriculture, a revegetation study to determine species that will
best germinate and reproduce topsoil, fertilizer, irrigation re-
quirements and planting schedules for revegetation raw oil shale
disposal piles. This latter study will begin during the summer
of 1974 and will require two years to complete. Other studies on
revegetation and utilization of disposal piles are contemplated also.
It is expected that revegetation of raw oil shale can be more readily
accomplished than with spent shale.
Results of these experiments and the plans for final revegetation
of the completed pile will be presented to the county planner and
commissioner when they become available. In general, it is expected
that the pile will be seeded with native and/or introduced grass
species.
5. PROTECTION - Fences will be constructed as necessary to protect
the areas being revegetated from livestock and big game grazing
during the establishment period.
6. LAND REQUIREMENTS - The land is owned by the applicant in fee.
A total of 9.25 acres will be involved.
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ENVIRONMENTAL IMPACT STATEMENT TO ACCOMPANY APPLICATIONS
FOR SPECIAL USE PERMIT - MINERAL WASTE DISPOSAL DUMP, MINE
3C, LOGAN WASH OIL SHALE OPERATION
LOCATION AND SCOPE
Application is made for a Special Use Permit for a mineral disposal
site located in the E1/2 NW1/4 Section 25 T7S - R97W, a Dry Gulch re-entrant
off the north side of Logan Wash (Figure 1). The site will contain approxi-
mately 500 thousand cubic yards of raw oil shale. (See cross sections A -G
and Figure 2).
Application was previously made for a Conditional Use Permit for
construction of a road and mine designated the "3C adit", in this same parcel.
The present application covers the mine dump that will originate from these
operations.
The material to be dumped will be raw oil shale rock with chemical
and physical characteristics virtually identical to those of oil shale talus
slopes that now exist beneath the Mahogany Ledge in the same area. $urpose
of the dump, other than servicing mining operations in this parcel will
be an experimental site to obtain slope stability parameters.
DESIGN AND CONSTRUCTION
The disposal pile at Garrett's 3A Adit, the present operation,
was constructed by end dumping with no compaction. The dump was proven to
be exceptionally stable because of the large grain size and angularity of
the material. Configuration of the canyon suggests that similar methods can
he used at the 3C edit. No problem is anticipated in maintaining slope and
stability of the pile if care is paid to trimming where required.
WATER
Construction of the dump will not have an adverse effect upon
underground water. Runoff water may be somewhat affected. This is covered
under the site rehabilitation section of this application. The material
being dumped is raw oil shale and should not affect either the salinity
or the chemical balance of the water. The dumped material will be very
porous and have a high transmissivity. It is not expected to shift during
cloudbursts, spring thaws, etc. Rather, any runoff anticipated is expected
to flow through.
USE OF ADJACENT LAND
Adjacent land is now used only for cattle grazing during spring
and fall movements. Extent of the material as dumped will be about 800
feet from the property line. The dump will not affect adjacent land use.
WILDLIFE AND DOMESTIC ANIMALS
Creation of the dump will not effect the migration routes or
use patterns for wildlife. No attractions should exist that would bring
wildlife to the area. Existing vegetation will not be altered. Return
of the area to its original vegetal growth is covered in the Rehabilita-
tion Plan.
TRUCK AND AUTO TRAFFIC
The dump will not create any additional auto or truck traffic
in the area.
EMPLOYMENT
There will he no increase in employment due to construction of
the dump.
DISTANCE FROM ABUTTING PROPERTY
The toe of the pile will be approximately 800 feet from the
nearest abutting property.
VISUAL IMPACT
The dump is located 13.2 miles from DeBeque, 7 miles from the
county road on Roan Creek. The area is not visible from any existing
public access roads, hiking trails, etc.
INDUSTRIAL PERFORMANCE STANDARDS
Volume of Sound. The volume of sound generated by equipment
used will be from 30 to 50 decibels at the working location of land person-
nel. This will be the only sound inherent to the construction and main-
tenance of the area.
Vibration. No vibrations will eminate peast the property line.
Emissions of Smoke & Particulate Matter. No smoke will be emitted
into the atmosphere. It is estimated that the pile will contain 0.1% dust.
The pile of the 3A mine site has not been the source of an unusual amount
of blowing dust.
Emission of Heat, Glare, Radiation & Fumes. There will be no
emissions of heat, glare, radiation or fumes from the pile.
General. Thera will be no storage of flammables or explosive
solids or gasses at the dump. No materials or wastes will be deposited
in such a manner that they may be transferred off the property by any
reasonably foreseeable natural causes or forces. The dump consists of
"as mined" rock only and will not present a fire hazard nor be attractive
to insects or rodents.
No potential hazards are anticipated that would necessitate the
installation of safeguards against water pollution.
-3-
SITE REHABILITATION
Topography. The topography in the area is very steep (see
Figure 1) and the pile will fill only that part of the canyon below the
edit benches. Slopes will be no steeper than the angle of repose between
38° and 42°.
Drainage. Natural drainage should not be affected by the
dumping as material will not be dumped across a major stream channel.
Should the need become apparent during construction of the dump, runoff
will be carried across the pile in a suitable lined channel and conducted
down the slope to the natural channel.
Leaching. The material to be dumped is raw oil shale, not spent
(retorted) shale. No leaching will occur. The raw oil shale at this
site contains essentially no nahcolite because none was deposited at the
edge of the oil shale basin where our property is. Therefore, no leaching
of water soluble minerals will occur.
Planting, Mulching, etc. The applicant has retained VTN Colorado
Corporation to perform a preliminary environmental analysis on its entire
Logan Wash property. This study is expected to be complete by May 1, 1974.
Occidental Chemical Corporation, another wholly owned subsidiary
of Occidental Petroleum Corporation, will assist in vegetation of the mined
shale disposal site. OXY Chemical is a major fertilizer producer and per-
forms agronomic application services throughout its marketing area. Plans
for final vegetation of the completed pile will be presented to the county
planner and commissioner when they become available. In general, it is
expected that the pile will be seeded with native and/or introduced grass
species.
Protection. Fences will be constructed as necessary to protect
the areas being revegetated from livestock and big game grazing during the
-4-
establishment period.
Land Requirements. The land is held by the applicant on lease
option. A total of 9.25 acres will be involved.
-5-