HomeMy WebLinkAbout1.0 Application0
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SILT PIT
ASPHALT PAVING CO.
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Application for C a4Ftto al Use Permit
in
Garfield County, Colorado
December, 1981
Prepared by
Rindahl & Associates
2180 S. Ivanhoe St.
Denver, Co. 80222
(303) 692- 0922
.6X. A
c in ,ril F FFtmdahl. P.E
A 1111 B !incluse')
Amdahl & Associates • P.O. Box 24166 • 21t i Ivanhoe Streri • Dpnv.0 CO 81121:--ri 116 • 692-0922
1111 PROJECT OVI:RvIEN
1111 Asphalt Paving Co. of Golden, Colorado, proposes to de-
velop a gravel mining operation, asphalt batch plant, and
III concrete mixing plant on 86 acres of land approximately one
half mile southeast of the town of Silt. This land has been
purchased by Asphalt Paving Co. to provide needed gravel and
aggregate products for the developing west slope.
wThis application is being submitted to the Garfield
County Commissioners in order to obtain a conditional use
permit for the proposed operation. In conf„rmance with all
applicable rules and regulations, background information on
the site and the nat'u,•:,i the proposed operation is presented
in the following application.
This application has been prepared by
RINDAHL & ASSOCIATES
2180 S. Ivanhoe St.
P. O. Box 24166
Denver, CO 80222
(303) 692-0922
RINDAHL & ASSOCIATES
1!11 Grrt F. Rindahl, P.E.
11.1 Manager, Resource Engineeri
i% /l Lp
si-----
Ann B. Hodgson G
Manager, Environmental Services
11111
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111 Resource Engineering 8 Environmental Services
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Date:
SPECIAL USE PERMIT
INDUSTRIAL OPERATIONS
(Other than Oil/Gas Wells)
11/20/61
Applicant:
Phe Asphalt Paving Company
Address of Applicant:
Special Use:
14802 W. 44th, Golden, CO 80401
open pit mine for sand and gravel and asphalt
batch plant, and concrete mixing plant.
Legal Description: SE; of the NEla of Section l0: NF4 ww4 anri
SW; of the SE;
of Section 10; the E1/4 of
the
10, Township 6 South, Range 92 West,
SRA. of Cartinn
Requirements:
1. Plans and specifications for proposed use.
2. Letters of approval from utility companies, sewage and water. Road access
and other information deemed necessary.
3. A vicinity map drawn to scale depicting the subject property, location and
use of buildings and structures on adjacent lots.
4. An impact statement on the proposed use (see 5.03.07 - 5.03.09 of Zoning
Regulations).
5. A copy of Assessor's map showing property; and a listing of all adjoining
property owners and property owners within 200 feet of said property.
Notice containing information described under paragraph 5 shall be mailed
to all owners of record of these lots at least 5 days prior to the hearing
by certified return receipt mail.
6. Notice including the name of the applicant, description of the subject lot,
a description of the proposed special use and the time and place for the
hearing shall be given in the newspaper of general circulation in that
portion of the County at least fifteen (15) days prior to such hearing time.
Applicant shall bear the cost of advertising.
7. A fee of 9500.00 shall be charged for each application and shall be sub-
mitted with the application.
This Special Use Permit is in compliance with Sections 5.03and 9.03 of the
Garfield County Zoning Resolution and as per application.
List all property owners within 200 feet of subject property lines.
Leonard A & Marie M. Davis, Garfield County, Roy D & Joyce Keithley(
Earl Jr. & Ruth B. Keithley, Larry Joe Keller, Donald D & Marjorie
T. Lyons, R. Glen & Penny M. Sykes, Donald R. Throm & Susan Steiger,
Town of Silt, V 11e Farms Inc. Donald & Mar' n Whi
Attach map showing al� improv emenfs `preent an proposec)'an a pertinent
distances and area. Show all improvements on your property and adjoining prop-
erty within 200 feet of your boundary.
The above information is correct to the best olf my knowledge.
Applicant 7Ose Asphalt Paving Camper: -
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Date
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EXHIBIT 1
MINING PLAN
The proposed Asphalt Paving Co. Silt pit consists of two
islands of alluvial material located between branches of the
Colorado River approximately one-half mile south of the town
of Silt (Section 10, Township 2 South, Range 92 West, 6th
P.M., Garfield County, Colorado). The proposed site includes
approximately 86 acres.
112(2)`p•P is site will be mined for sand, gravel and cru
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ve phases extending over an approximately
year period;
mining methods in each phase will be similar.
ing start at the western edge of Phase I on the
1 property. Topsoil and overburden will be removed with
scrapers and stockpiled along the southern edge of the property
as shown on the mining plan map (Exhibit C). A dragline
will be used to excavate the material and stockpile it at the
excavation point; from there it will be loaded into haul
trucks with a frontend loader and transported across the mine
site to the plant site at the eastern side of the property.
Each phase of the project will be mined consecutively by the
same method, progressing to Phase IV.
Phase V, an island of land to the north of the primary
1 site, will be mined at low water. The same methods will be
used to mine this site as the other phases of the project.
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112(2) (g)
Before mining starts in Phase I a sediment pond to
control effluent quality will be constructed at the north-
western corner of the property. A floating pump will be
installed to discharge water into the Colorado River from
the western side of the sediment pond. This site will be
dewatered during the life of the project. As mining pro-
gresses in Phase I the sediment pond will be enlarged to
become the Phase I excavated area, and then to include each
successive phase, as a lake is created on the property. The
discharge point will remain at the same location during the
life of the project.
The intermittent stream which flows east to west across
the northwest corner of the property will be diked at the
east side of the property before mining begins.
A fifty foot setback from the river edge will be main-
tained around Phases I through IV. On the east side of the
111 property a three hundred foot area for the plant site will
be maintained in addition to the fifty foot setback from
1 the property line. On the north island a twenty-five foot
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setback will be maintained at the west property line, as
shown on the Mining Plan map.
1 Total acreage of the setback and plant site areas will
be 16 acres. The lake acreage will be approximately 70.0
1 acres and will vary according to the level of the Colorado
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River.
112(2)(h) This site will be mined for sand, gravel and crushed
11 stone in five phases extending over an approximately ten
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year period, with each phase about 16 acres in size. The
total area to be mined encompasses 70.0 acres. The phases
are diagrammed on the accompanying mining plan map (Exhibit
C). As shown, mining will progress from west to east across
the property. Phase V will be mined during a low water
period, at the discretion of the operator, but within the
total time frame of the proposed operation.
112(5) The commercial gravel deposit in this area is approxi-
mately 30 feet in depth. Soil of the Potts loam classifica-
tion is composed of an estimated 8" of topsoil, since this
area has been farmed for a number of years, and an estimated
22" of overburden. Other soils on the property are not
described by the U.S. SCS as having recoverable amounts of
topsoil and overburden due to their extremely sodic and
stony nature.
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EXHIBIT 2
Utilities, Sewage and Water
There are no utility, water or sewage lines present in
the area to be mined.
Portable San -o -let toilets and bottled drinking water
will be provided for employees.
Power for the mining equipment and plant site will be
provided by portable diesel generators initially, but hook-
ups to public power may be arranged at a later date.
Site Access
Access to the mine site will be via a haul road
constructed to tie in with County Road 311, as shown on
the mining plan.
Truck traffic to and from the site will go primarily
north to connections with Interstate 70.
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EXHIBIT 3
Vicinity Map
A vicinity map of the site is shown on Exhibit 1,
the mining plan map, located in Map Pocket No. 1.
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EXHIBIT 4
5.03.07 INDUSTRIAL OPERATIONS IMPACT STATEMENT
(1)(a) Water Quality Impact
The proposed Asphalt Paving Co. pit is located on two
islands of gravel between branches of the Colorado River.
The water table at this site, based on exploratory testing
done in August, 1981, is approximately 8-12 feet in depth.
No disturbance to the prevailing hydrologic balance is antici-
pated.
Water quality on the site will be carefully controlled
to comply with all applicable Federal, State and County
regulations.__. — \
An NPDES permit and a Section 404 permit for this
acility have been applied for.
5.03.07
(2) Vehicle Travel Routes
Traffic generated by the proposed plant site will enter
and leave the site via a haul road which will tie into County
Road 311.
The haul road will be constructed by Asphalt Paving
Company to be a two lane asphalt paved entrance of appropriate
grade with exiting traffic regulated for safety by a stop
sign. North and south approaches to the haul road from the
County road will be regulated with all appropriate directional
and warning signs.
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There will be a maximum of 50 one-way vehicle trips per
day generated by this operation. The majority of the traffic
from this operation will travel north on County Road 311
and connect with Interstate 70 to travel east or westbound.
A small proportion of the traffic may travel south on the
County road.
5.03.07
(3) Buffer Zones
The proposed mine site and plant site are separated
from surrounding landowners by the Colorado River, which has
an average channel width of 200-400 feet in this area, on
the north, west, and south sides of the operation. On the
east the plant site is separated from adjacent property
owners by County Road 311. The adjacent property to the east
has been recently approved as a gravel pit.
1111 5.03.07
(5) Reclamation Plan and Reclamation Plan Map
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The proposed reclamation plan for this site appears on
the following page. The reclamation plan map is included
in Map Pocket No. 2.
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RECLAMATION PLAN
After mining is completed in each phase a combination
of scrapers, frontend loaders, and/or a dragline will be
used to redistribute the stockpiled overburden and topsoil
around the shores of the lake. Where feasible, aesthetically
attractive undulations in the shoreline of the lake will be
created with reject material and surplus overburden to
enhance its appearance and increase the suitability of the
site for wildlife habitat. The shoreline acreage to be re -
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claimed will total 13.20 acres. Shoreline banks will be
constructed to be a minimum slope of 3:1 to ten feet below
water level and 2:1 from that point to the bottom of the
lake. Topsoil will be distributed over the lakeshores to
a depth of 6-8".
The postmining reclamation of this land will create
an aesthetically attractive lake between two branches of
fast flowing river water; this will create a large area
of stillwater wildlife habitat where none existed previously
in this stretch of the river. Surrounding land uses are
similar to the proposed post -mining land use in that large
areas of undeveloped land exist along surrounding river
banks, and commercial, industrial or residential develop-
ment is extremely limited in the areas immediately surround-
ing the site.
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Rule 6.1 Grading
Following mining, overburden and reject material will
be used to reestablish slopes around the perimeter of the
site which will be 3:1 from ground level to 10 feet below
water level, and 2:1 from that point to the bottom of the
lake, except in areas where available material is used to
modify the shores for wildlife habitat, in cooperation
with the Colorado Division of Wildlife.
Backfilling and slope stabilization will be conducted
1 sequentially as mining is completed. No problems with
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erosion are anticipated due to the moderate angle of the
proposed slopes.
No toxic materials are being mined on the site, or
will be created by processing activities on the site.
There will be no open exploratory holes or mine shafts
created by this mining operation.
Rule 6.2 Water
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The operator does not anticipate that any of the pro-
posed mining or reclamation activities will cause any
disturbance to the prevailing hydrologic balance. Further
1 information is included in Exhibit G, Water.
All applicable Federal and State water laws will be
complied with. The operator has applied for a National
Pollutant Discharge Elimination System (NPDES) permit.
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Rule 6.3 Wildlife
This general area of the Colorado River has been
designated as potentially critical habitat for great blue
herons and bald eagles. A discussion of the potential
import of this area is contained in the wildlife impact
statement, Exhibit H, of this application.
The reclamation plan as proposed will provide pre-
viously non-existent stillwater wildlife habitat surrounded
by the already -existing Colorado River riparian and free-
-flowing river habitat, and will not endanger any 'otentially
critical habitat.
Rule 6.5 Revegetation
Topsoil will be replaced on the site following mining
using scrapers and/or other earth moving equipment. The
soil will be disced and drillseeded with the following
seed mixture:
Species Lbs, PLS/Acre*
Streambank wheatgrass 4.4
Intermediate wheatgrass 5.4
Western wheatgrass 4.2
Russian wildrye 2.2
Yellow sweetclover 1.4
*PLS = Pure Live Seed
112(3)(c)
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Cottonwood trees already existing on the periphery
of the site will be left in place and will be integrated
into the final reclamation plan.
Natural vegetation such as saltgrass and willows will
be allowed to invade the site after recontouring and
reseeding is completed.
Each mined out phase will be reclaimed after mining
has started in the next sequential mining phase. Each
mining phase is estimated to take approximately 2 years
to complete and reclamation will occur so that it is
completed within approximately 12 months of the cessation
of mining.
EXHIBIT 4
5.03.08 Industrial Operations Impact Statement
(1) Noise
Ambient noise from this operation shall not exceed
applicable regulations for industrial operations as limited
by Federal, State and County standards.
(2) Vibration
There will be no blasting in connection with this
operation, and therefore no excessive or recurrent ground
motion due to this operation.
(3) Air Quality
This operation will comply with all applicable Federal,
State and County air quality laws, regulations, and standards.
An air quality permit for this facility has been applied
for.
(4) Emission of heat, glare, radiation, and fumes
There will be no noxious emissions of heat, glare,
radiation or fumes from this operation. Lighting will be
directed downward and screened if necessary.
(5) Miscellaneous storage areas
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(a) All fuel or other flammable or explosive gases or solids
will be stored in accordance with the National Fire Code,
and all other applicable laws and standards.
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(b) (discretion of County Commissioners)
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(c) There will be no uncontrolled storage or disposal of
materials or wastes.
(d) Any materials which may constitute a fire hazard will
be stored according to State Board of Health regulations.
There will be no storage of rodent -attracting materials.
(6) Water Pollution
A National Pollution Discharge Elimination System
(NPDES) permit has been applied for for this operation.
1111
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EXHIBIT 5
Assessor's Map and Adjoining Property Owners
An assessor's map showing the locations of
surrounding property is located in Map Pocket No. 5 at
the end of this application.
The following is a list of all adjoining property
owners, or property owners within 200 feet.
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EXHIBIT 5
NAMES AND ADDRESSES OF SURROUNDING PROPERTY OWNERS
Assessor No. Landowner
2179-104-00-177
-113-00-177
2179-113-00-112
2179-102-00-004
2179-104-00-230
2179-104-00-176
(2179-113-00-176)
2179-103-00-109
2179-104-00-229
2179-102-00-002
2179-102-00-005
2179-112-00-094
2179-114-00-114
2179-104-00-110
Davis, Leonard A. & Marie M.
Davis, Danny J. & Kelley K.
6533 County Rd. 214
Newcastle, CO 81647
Garfield County
P.O. Box 640
Glenwood Springs, CO 81602
Keithley, Roy D. & Joyce (h int)
Keithley, Earl Jr. & Ruth V. (1 int)
0878 Miller Lane
Rifle, CO 81650
Keller, Larry Joe
6696 Highway 82
Glenwood Springs, CO 81601
Lyons, Donald D. & Marjorie T.
P.O. Box 462
Silt, CO 81652
Sykes, R. Glen & Penny M.
0511 331 Rd.
Silt, CO 81652
Throm, Donald R. & Susan Steiger
0361 County Rd. 311
Silt, CO 81652
Town of Silt
Silt, CO 81652
Valley Farms, Inc.
Box 248
Silt, CO 81650
White, Donald Richard & Marian J.
241 Co. Rd. 331
Silt, CO 81652
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APPLICATION FOR A DEPARTMENT OF THE ARMY Pur—.
Fur use of this form, sea EP 1145-2-1
The Department of the Army permit program is authorized by Section 10 of the River and Harbor Act of 1899, Section 404 of
P. L. 92-600 and Section 103 of P. L. 92-532. These laws require permits authorizing structures and work in or affecting navigable
waters of the United States, the discharge of dredged or fill materiel into waters of the United Statoe, end the transportation of
dredged material for the purpose of dumping it into ocean waters. Information provided in ENG Form 4345 will be used in evaluating
the application fora permit. Intonation in the application is made a matter of public record through issuance of a public notice.
Diecloaure of the information requested is voluntary; however, the data requested are necessary In order to communicate with the
applicant and to evaluate the permit application. If necessary information Is not prnvidud, the permit application cannot be pro—
cessed nor can a permit be issued.
One set of original drawings or good reproducible copies which show the location and di/tractor of the proposed activity must
be attached to this application (see sample drawings and checklist) and be submitted to the District Engineer having jurisdiction
over the location of the proposed activity. An application that is not completed in lull will be returned.
1. Application number (To be assigned by Corps)
2. Date
10 Dec. 1981
3. For Corps use only.
Day Mo. Yr.
4. Name and address of applicant.
Asphalt Paving Co.
14802 W. 44th
Golden, CO 80401
Telephone rho. during business hours
A/C (301 279-6611
5. Name address and titlq of authorized agent.
Rindahl & Associates
P. 0. Box 24166, 2180 S. Ivanhoe Street
Denver, CO 80222
Representative
Telephone no. during business hours
A/C (303) 692-0922
A/C ( )
A/C ( )
6. Describe in detail the proposed activity. ns putpose and intended use (private, public, commercial or other) including descrip—
tion of the type of structures, if any to be e,ected on tills, or pile or float—supported platforms, the type, composition and
quantity of materials to be discharged or dumped and means of conveyance, and the source of discharge or 1i11 material. 11
additional space is needed, use Block 14.
Activity will be the extraction of sand and gravel from approximately 25 acres of
wetlands adjacent to the Colorado River. Material. will be transported to the exist-
ing gravel crushing operation for processing and to provide for aggregate for con-
crete mixing plant and asphalt plant.
7. Nauss, actdr and telephone numbers of adjoining property owners, lessees, etc., whose property also adjoins the waterway.
Leonard A. & Marie M. Davis; Danny J. & Kelley K. Davis, 6533 County Rd. 214,
Newcastle, CO 81647, Tel. 303-984-2885
Garfield County, P. 0. Box 640, Glenwood Springs, CO 81602, Tel. 303-945-6241
Roy D. & Joyce Keithley; Earl, Jr. & Ruth V. Keithley, 0878 Miller Lane,
Rifle, CO 81650, Tel. 303-625-1439
Larry Joe Keller, 6696 Highway 82, Glenwood Springs, CO 81601
Donald D. & Marjorie T. Lyons, P. 0. Box 462, Silt, CO 81652
Continued on attached sheet
8. Location where proposed activity exists or will occur.
Aaldraaa. Tex Assessors Description; (11 known)
1/2 Mile South of
Street, road or other descriptive location Map No. Subdiv, No. Lot No.
Silt. Colorado 10 6S 92W
In or near city or town
Garfield Colorado
Sec. Twp. lige.
County State Zip Code
9. Name of waterway at location of the activity.
Colorado River
Ilion 0f 1 Apr 74 is obsolete.
10. Date activity is proposed to commence.
Immediately upon approval of permit
Date activity is expected to be completed
December, 1992
11. Is any portion of the activity for which authorization is sought now complete? El TES ® NO
1f answer is "Yea" give reasons in the remark section. Month and year the activity was completed
. Indicate the existing work on the drawings,
12. List all approvals or certifications required by other federal. interstate, state or local agencies for any structures, eonstmc
tion, discharges, deposits or other activities described in this application.
Issuing Agency
Type Approval Identification No,
Date of Application Darn of Approval
Colo. Dept. of Health NPDES December 10, 1981 Pending
Colo. Dept. of Health Air Emission December 10, 1981 Pending
Colo. Dept. of Natural
Resources MLRB December 10, 1981 Pending
13. Has any agency denied approval for the activity described herein or for any activity directly related to the activity
described herein?
Yes ® No
(11 'ryes" explain in remarks)
14. Remarks (Checklist, Appendla H for additional information required for certain activities).
Mining will be scheduled in the north island during the low water level of the:
Colorado River. In addition, proper care will be taken to insure minimum impact
to the wildlife habitat on the west portion of the north island.
15. Application IS hereby made for a permit or permits to authorize the activities described herein. Ecatlfy that 1 rn familiar
with the information contained In this application, and that to the best of my knowledge and belief such Information Is true,
complete, end accurate. t further certify that 1 possess the au city to undertake the proposed activities.
. Signature of Applicant or Authorized Agent
The application must be signed by the applicant; however, It may be signed by • duly authorized agent (named in Item 51
If this form is accompanied by s statement by the applicant designating the agent and agreeing to furnish upon request,
supplemental information in support of the application.
18 U. S. C. Section 1001 provides that: Whoever, In any manner within the jurisdiction of any department or an
scheme,
The United States knowingly and willfully falsifies. contests, or covers up by any trick, serne, or device mntetal lac
or makes any lase, fictitious or fraudulent statements or representations or makes or uses any false writing or document
knowing sane to contain any tale* fictitious or fraudulent statement or entry, shell be fined not more than 810,000 or
!mainland not more than five years, or both. Do not send a permit processing fee with this application. The appropriate
fee will be assessed Wien a permit is issued.
7. Continued
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R. Glen & Penny M. Sykes, 0511 331 Rd., Silt, CO 81652, Tel. 303-876-5550
Donald R. Throm & Susan Steiger, 0361 County Rd. 311, Silt, CO 81652,
Tel. 303-876-2648
Town of Silt, Silt, CO 81652, Tel. 303-876-2353
Valley Farms, Inc., Box 248, Silt, CO 81650, Tel. 303-876-2437
Donald Richard & Marian J. White, 241 Co. Rd. 331, Silt, CO 81652,
Tel. 303-923-2683
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WhRe River
Mali nal Forts
Primary Island
70 Ac.
Rifle 0
Ras.
sp
Property Lino
60 Setboelt,lyp.
RIFLE o.
D APPLICATION AREA
USOS 5111 7.8 PLAN Seale' I' 1000'
Depth of rots 6'± (seasonal)
Type of malarial: Sand 6 gravel
Method of noodling: Oregliee
ADJACENT PROPERTY OWNERS
0 Torn of 3111
OValley Forme, Inc.
60
60'
VICINITY MAP
16 10 6 0 15
Soole In Mlle•
ATER. LEVEL ELEV. 5412.0'
( USSS Silt 75' )
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VARIES
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SECTION — PRIMARY ISLAND
SCALE - HDR. & VER. ' I" a 40'
ie.VARIES
EXISTING
RIVERBED
2'I
SECTION — SECONDARY ISLAND
SCALE — HOR. 8 VER. , I = 40'
EXISTING
RIVERBED
PROPOSED GRAVEL PIT
IN THE COLORADO RIVER
1/2 MILE SOUTH OF SILT, COLORADO
COUNTY OF GARFIELD STATE OF COLORADO
APPLICATION BY ASPHALT PAVING COMPANY
PREPARED BY RINDAHL AND ASSOCIATES, INC.
2180 SOUTH IVANHOE STREET
DENVER, COLORADO 80222
SHEET IOF 1 DATE 12/14/81
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INDUSTRIAL • ,LwAIER DISCHARGE APPLICATION
FOR AGENCY USE
APPLICATION NUMBER
DATE RECEIVED
YEAR MO.
DAY
Don not attempt to complete this form before reading the accompanying instructions.
PLEASE PRINT OR TYPE
NEW x OR RENEWAL (existing permit No. )
1. Name, address, and telephone number of the owner of the facility producing
discharge.
Property owner(s) ASPHALT PAVING CO.
Mailing address 14802 W. 44th
City Golden State CO
County Jefferson Zip Code
Name of operation
80401
ASPHALT PAVING CO. SILT PIT
Local contact(familiar with process) Rindahl & Associates, Gib Rindahl
Telephone Number
( 303 ) 692-0922
or Ann Hodgson
Area Code
2. Is the facility operated other than by the owner? YES x NO
If yes, complete the following:
Operator
Mailing Address
City
County
Name of Operation
Local Contact
State
Zip Code
Telephone Number
Also, on the back side of this page describe the relationship, agreements and
atime frame of any agreement. (This information may be designated "confidential")
3. Specify whether owner or operator is making application for the permit.
Owner
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4. Location of operation
NE' NE;, NE, NW, SW4 SES, E1/2 SW4 Section 10,
Legal description (Township, Range, 1/4 Section) T.6S., R92W
Street West of County Road 311
City Unincorporated Garfield County State CO
County Garfield Zip Code
For a new applicant, please provide directions to the operation from a near-
by town or landmark. Exit at Silt, turn South to I-70 access rd., then
East to County Rd. 311, turn south 'q mi. Operation is on West side of
5. Type of facility, sand & gravel mining, washing, crushing, de -watering road.
and a description of processes and months of operation. List principal
products.
Sand & gravel mining with dragl.ine, processing through crusher
& screen plant, & conveying to stockpiles, 10 months during year.
Asphalt plant and concrete mixing plant at east side of property.
Principal products: sand, gravel, & asphalt & concrete mixing
6. Do you anticipate the need for changing or adding the discharge point(s)
as mining progresses? If so briefly explain.
No
7. A location map designating the facility property and discharge points shall
be submitted. The map shall be from a 7-1/2 or 15 minute USGS quad sheet or a
map of comparable scale. A north arrow shall be shown. Any public water supply
intakes within a 5 mile downstream of the facility shall also be identified,
if known.
8. A legible general sketch of the site shall be submitted and include
appurtenant facilities (building, ponds, diversion ditches, stockpiles, etc.),
stream location, numbered discharged points, sampling and flow monitoring points.
$ketch shall be on paper 8-1/2 x 11 inches. Please label the outfalls on the
sketch to correspond with numbers listed in Table 8C below.
B. For each outfall, provide a description of: (1) All operations con-
tributing wastewater to the effluent, including water associated with crushing
or washing, sanitary wastewater, groundwater and stormwater runoff;
(Z)_ The average flow contributed by each operation; and (3) The treatment
received by the wastewater plus an identification of chemical additives.
Continue on additional sheets if necessary.
2 600 GPM
1
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1
1
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'Method of flow asurement for each discharge (i.e. 90 v-notr' weir, pump capacity,
parshall fluff lone, etc.). Designate whether installed or oposed.
None
10. Optional: You may attach additional sheets describing any additional water pollution
control programs (such as Mined Land Reclamation stipulations) which may affect your
discharge.
1
1
Do you have
YES
None
bulk storage of diesel fuel, gasoline solvents or other materials on site?
NO.
12. Analytical data for the following parameters unless
at least one sampling of each discharge point. See
If no water is currently available for analysis, so
Alkalinity (mg/1)
pH (s.u.)
PITotal Suspended Solids (mg/1)
Oil and Grease (mg/1)
No water to analyze at this time.
1
exempted shall be submitted from
instructions.
indicate.
Total Dissolved Solids (mg/1)
Ire Division may request analysis of other parameters once the application has been
reviewed.
113. Is or will land application of any wastewater be practiced for purposes other than
reclamation or dust control? YES X NO
1
1
1
1
If YES, identify disposal area, specify acreage, quality and quantity of water,
method of application, seasonal operation, pretreatment.
14. Estimated life of the activity from which the discharge(s) identified in Item 11B
originate.
-10 Years.
15. I certify under penalty of law that I have personally examined and am familiar with
'lithe information submitted in this application and all attachments and that, based on my
inquiry of those individuals immediately responsible for obtaining the information, I be-
lieve that the information is true, accurate and complete. I am aware that there are
lsignificant penalties for submitting false information, including the possibility of fine
and imprisonment.
1)
5
112
5
A. SIGNATURE OF OWNER(S)
Robert E. Lemke
C. NAM(PRINTD)
B. DATE SIGNED
Vice -President
AT SIGNATURE OF OPERATOR
Robert E. Lemke
C. NAME (PRINTED)
D. TITLE
B. DATE SIGNED
Vice -President
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COLORADO DEPARTMENT OF HEALTH
AIR POLLUTION CONTROL DIVISION
4210 East 11th Avenue
Denver, Colorado 80220
(303) 320-4180
Name of Firm ASPHALT PAVING CO.
Mail Address 14802 W.
44th, Golden, CO
Location '� mile -- -- -_ Zip 80401
AIR POLLUTANT EMISSION NOTICE
Mining, Earth Moving, Land Development
Project south of
--il Silt, west of County Rd County Garfield
_—
Person to contact Rindahl & -- �r -
reearding this data Gib Rindahl/sAnnnates
----__- / Aman Hodgson
Estimated starting date 2-1-82
_ Phone. (303) 692-0922
Area subject to earthmoving;
11 Acres/Day 6
(Mining) Amount of material removed; - Acres/Year
_ Tons/Day 500,000 Tons/Year
Area of roads and parking lots to be paved within six months:
1 Acres
Method of dust suppression:
___Yes X Watering Compaction X
Proctor test? - p
No Other:
Revegetatio❑
(Describe below) -- --- -
Work schedule: 10 Hours/ Da 24-
---' Y -Days/Month 290
Estimated _Days/Year
time to complete overlotting continuous during project
1 Estimated time to complete entire project
1 from start of overlotting to completion of construction 6-31-93
Number of buildings: No permanent structures
Residential
Average area covered Commercial
_industrial
including foundation (Footprint) per building
garage, etc.
---NA — -Square feet
Land area undisturbed by earthmoving,
but part of overall project
15 _Acres
Description of control measures to minimize generation of
-- unitive dust from fugitive dust:
essins_eouip' ment will
water spras inbe controlled with
_y________=t erior haul roads and
---_ plant sites will be watered
____ an- door oiled, exterior haul roads will
_ be asphalt awed
__clean_ -- - -_ p_ and kept
Signature of Legally -`---
Authorized Person �_..
/VS-4/
ed or Printed
:am „
e and Title ••. Robert E. Pate
Lemke, Vice President
APCD:SES(8-79-2)
F41
r+
AIR LUTION CONTROL DIVISION - COLORADO DEPARTMENT 7 HEALTH
4210 ... llth Avenue, Denver, Colorado 80220 - Phone. 320-4180
APPLICATION FOR EMISSION PERMIT
1
This application shall be filled out completely - see instructions on reverse side.
1. PERMIT TO BE ISSUED TO: Telephone
ASPHALT PAVING CO.•
No. (30 779._-11
_)
2. MAILING ADDRESS (include zip code):
14802 W. 44th, Golden, CO 80401
3. TYPE OF ORGANIZATION:
/-7-Individual Owner
// x/Corporation / /Partnership
/ /Governmental Agency
4. AGENT FOR SERVICE:
(303) 692-0922
Rindahl & Associates, P.O. Box 24166, Denver, ,CO 80222-0166
5. GENERAL NATURE OF BUSINESS:
Production of sand, gravel, asphalt pavement, ready mix concr
6. AIR POLLUTION SOURCE: Pursuant to Regulation No. 3 of the Colorado Air Quality
Control Commission, application is hereby made for an
Emission Permit for the following airollution source
(attach separate sheet where necessary):
ASPHALT PAVING CO. SILT PIT
7. SOURCE LOCATION ADDRESS:
1 mile South of Silt, west of County Rd 31I0UNTY(IES):
carfinld
8. ESTIMATED COST OF SOURCE OR MODIFICATIONS:
Air Pollution Control Equipment
Days Per Year Source Will Be Operated
Process
50,000 Equipment 1.Son. non
24n_
9. STATUS (check and
complete applicable
Source
Being
Source
items):
Estimated Date
Construction
W111 Begin
2-1-82
Estimated Date
Construction
Will Be Completed
6-31-93
/ x/New Air Pollutant
/%Control Equipment
Added to Existing
/Activity Change
10. Check is enclosed to cover APPLICATION FILING FEE
(see No. 10 on reverse side of this form)
/37 540.00
11. ANTICIPATED START-UP DATE
2-1-82
12. DATE OF APPLICATION
12-10-81
13. 361A-TJRE 0FF, LEGALLY •AUTHORI`ZED PERSON .
14. Type or print name and official title of person signing this application.
Robert E. Lemke, Vice President '
Date Received
15. REMARKS:
Jt
EXHIBIT H
WILDLIFE
The proposed Silt gravel mining operation is located
approximately i mile south of the town of Silt on two adja-
cent islands of gravel between branches of the Colorado
River. The site was evaluated to determine the presence of
wildlife species and habitat conditions on the site through
November, 1981.
The main property consists of an upland area, which has
been farmed for a number of -years, bordered on the north and
south sides by lower woodlands areas. The lowlands are
separated from the upland pasture by a stream and surrounding
marshy area characterized by willow, tamarisk, and shrubby
undergrowth. Large cottonwood trees are present across the
entire site.
The adjacent north island is a gravelly lowland area
characterized by shrubby undergrowth and tall mature cotton-
woods. A site map indicating the relationship of the islands
to each other is included with this application.
MAMMALIAN OBSERVATIONS
Field observations indicated the presence of a variety
of mammals on the site. Other unobserved mammals could be
expected to be present on the site due to nomadic or migra-
tory movements along the Colorado River corridor. A list of
the latilong data for this habitat type and location is
appended following this discussion.
AVIAN OBSERVATIONS
A variety of bird species could be expected to be present
on the property due to the mix of habitat types. Habitat
diversity is provided by the canopy of tall cottonwoods and
other tree species, open agricultural fields, woody lowlands,
and dense wetlands.
This area has been identified by the CDOW as potentially
important habitat for great blue herons, bald eagles and water-
fowl. A discussion of the values of the area for each of these
species follows.
The Colorado Division of Wildlife has identified the
western portion of the north island, an area not owned by the
mine operator, and not contiguous to the proposed mine site,
as one of the major great blue heron rookeries on the Colorado
River. Although the rookery does not extend onto the proposed
mine site, some of the large cottonwood trees on the site are
used occasionally as roost trees, and marshy riparian habitat
on the south island is used by the herons as a feeding area.
The operator has agree to leave a number of large
cottonwood trees standing along the perimeter of the south
island, and to leave the wetlands area on the south side of
the south island undisturbed by the mining operation. The
proposed mine plan and the significant distance of the
operation from the rookery should preclude disruption
rookery activities.
of
The Colorado River corridor in this area has been
identified as a critical wintering habitat for bald
eagles by the Colorado Division of Wildlife and the U.S.
Fish & Wildlife Service.
Data has been collected by these agencies to indicate
those trees along the river which are used as roost trees
and hunting perches. None of these trees are present on the
immediate mine site.
Again, the operator has agreed to leave a number of large
cottonwood trees undisturbed by the mining operation along
the perimeter of the south island, which will lessen the
overall alteration of this area.
Riparian areas on the south island have been identified
as nesting habitat for Canada geese. The reclamation plan
for this site provides for the reestablishment of suitable
reproductive areas following mining. There is substantial
evidence to indicate that geese are virtually undisturbed
by mining operations. Records exist of geese nesting and
successfully fledging young on dredges operating at 100
dB(A). Thus, the proposed mining operation is anticipated
to have very little long term effect on these birds.
The operator has agreed to cooperate with the Division
of wildlife to emplace geese nesting structures on the site,
if feasible, as reclamation proceeds.
The foregoing discussion has addressed the efforts which
will be made by the operator to mitigate the effects of the
proposed mining operation on wildlife species inhabiting
the area.
BIRDS
Common Name
American Goldfinch
American Kestrel
American Robin
Bald Eagle
Barn Swallow
Barrow's Goldeneye
Belted Kingfisher
Bewick's Wren
Black -and -white Warbler
Black -billed Magpie
Black -headed Grosbeak
Black -throated Gray Warbler
Brewer's
Blackbird
Brewer's Sparrow
Broad -tailed Hummingbird
Brown -headed Cowbird
Brown Creeper
Bushtit
Cedar Waxwing
Chipping Sparrow
Cliff Swallow
Common Crow
Common Flicker
Scientific Name
Carduelis Tristis
Falco sparverius
Turdus migratorius
Haliaeetus leucocephalus
Hirundo rustica
Bucephala islandica
Megaceryle alcyon
Thyromanes bewickii
Mniotilta varia
Pica pica hudsonia
Pheucticus melanocephalus
Dendroica nigrescens
Euphagus cyanocephalus
Spizella breweri
Selasphorus platycercus
Molothrus ater
Certhia familiaris
Psaltriparus minimus
Bombycilla cedrorum
Spizella passerina
Petrochelidon pyrrhonota
Corvus brachyrhynchos
Colaptes auratus
Common Goldeneye
Common Merganser
Common Nighthawk
Common Raven
Common Snipe
Cooper's Hawk
Dark -eyed Junco
Dipper
Downy Woodpecker
Eastern Kingbird
Evening Grosbeak
FoxSparrow
Golden Eagle
Goshawk
Gray -headed junco
Gray Catbird
Great Blue Heron
Great Horned Owl
Green -tailed Towhee
Harris' Sparrow
Hermit Thrush
Hooded Merganser
House Finch
House Wren
.Lark Sparrow
Lazuli Bunting
Bucephala clangula
Mergus merganser
Chordeiles minor
Corvus corax sinuatus
Capella gallinago
Accipiter cooperii
Junco hyemalis
Cinclus mexicanus
Picoides pubescens
Tyrannus tyrannus
Hesperiphona vesperii
Passerella iliaca
Aquila chrysaetos
Accipiter gentilis
Junco caniceps
Dumetella carolinensis
Ardea herodias
Bubo virginianus
Pipilo chlorurus
Zonotrichia guerilla
Catharus guttata
Lophodytes cucullatus
Carpodacus mexicanus
Troglodytes aedon
Chondestes grammacus
Passerina amoena
Lesser Goldfinch Carduelis Psaltrial
Lewis' Woodpecker
Lincoln's Sparrow
Long-eared Owl
Macgillivray's Warbler
Magnolia Warbler
Marsh Hawk
Mockingbird
Mourning Dove
Northern Oriole
Northern Shrike
Oldsquaw
Olive -sided Flycatcher
Osprey
Peregrine Falcon
Pine Siskin
Pinon
Pygmy
Pygmy
Jay
Nuthatch
Owl
Red -breasted Merganser
Red-tailed Hawk
Red -winged Blackbird
Ring-necked Pheasant
Rough -winged
Ruby -crowned
Rufous -sided
Swallow
Kinglet
Towhee
Rufous Hummingbird
Saw -whet Owl
Melanerpes lewis
Melospiza lincolnii
Asio otus
Oporornis tolmiei
Dendroica magnolia
Circus cyaneus
Mimus polyglottos
Zenaida macroura
Icterus galbula
Lanius excubitor
Clangula hyemalis
Nuttallornis borealis
Pandion haliaetus
Falco peregrinus
Carduelis pinus
Gymnorhinus cyanocephalus
Sitta pycmaea
Glaucidium hnoma
Mergus serrator
Buteo jamaicensis
Agelaeius phoeniceus
Phasianus colchicus
Stelgidopteryx ruficoliis
Regulus calendula
Pipilo erythrophthalmus
Selasphorus rufus
Aegolius acadicus
Sharp -shinned Hawk Accipiter striatus
Solitary vireo Vireo solitarius
Song Sparrow Melospiza melodia
Spotted sandpiper Actitus macularia
Starling Sturnus vulgaris
Swainson's Hawk Buteo swainsoni
Swainson's Thrush Catharus ustulata
Townsend's Solitaire Myadestes townsendi
Tree Sparrow Spizella arborea
Tree Swallow Iridoprocne Bicolor
Turkey Vulture Cathartes aura
Veery Catharus fuscescens
Violet -green Swallow Tachycineta thalassina
Virginia'a Warbler Vermivora virginiae
Warbling vireo Vireo gilvus
Water Pipit Anthus spinoletta
Western Flycatcher Empidonax difficilis
Western Kingbird Tyrannus verticalis
Western Meadowlark Sturnella neglecta
Western Tanager Piranga ludoviciana
Western Wood Pewee Contopus sordidulus
White -crowned Sparrow Zonotrichia leucophrys
Willow Flycatcher Empidonax trailli
Wilson's Warbler Wilsonia pusilla
Wood Duck Aix sponsa
Yellow -bellied Sapsucker Sphyrapicus varius
Yellow -headed Blackbird Xanthocephalus xanthocephalus
MAMMALS
Common Name Scientific Name
Beaver Castor candensis
Big Brown Bat Eptesicus fuscus
Black Bear Ursus americanus
Bobcat Lynx rufus
Coyote Canis latrans
Deer Mouse Peromyscus maniculatus
Gray Fox Urocyon cinereoargenteus
Long-tailed Weasel Mustela frenata
Mink Mustela vison
Mountain Lion Felis concolor
Mule Deer Odocoileus hemionus
Porcupine Erethizon dorsatum
Racoon Procyon Lotor
Red Fox Vulpes vulpes
Rock Squirrel Spermophilus variegatus
Silver -haired Bat
Spotted Skunk
Striped Skunk
Wandering Shrew
Western Jumping Mouse
White-tailed Deer
Lasionycteris noctivagans
Spilogale Putorius
Mephitis mephitis
Sorex vagrans
Zapus princeps
Odocoileus virginianus
Yellow-rumped Warbler Dendroica coronata
Yellow Warbler Dendroica petechia
REPTILES & AMPHIBIANS
Common Name
Arizona Tiger Salamander
Blotched Tiger Salamander
Boreal Chorus Frog
Boreal Toad
Desert Striped Whipsnake
Leopard Frog
Northern Plateau Lizard
Northern Sagebrush Lizard
Northern Side -blotched Lizard
Northern Tree Lizard
Northern Whiptail
Plateau Whiptail
Wandering Garter Snake
Woodhouse's Toad
Scientific Name
Ambystoma tigrinum nebulosum
Ambystoma tigrinum melanostictum
Pseudacris triseriata maculata
Bufo boreas boreas
Masticophis Taeniatus taeniatus
Rana pipiens
Sceloporus undulatus elongatus
Sceloporus graciosus graciosus
Uta stansburiana stanburiana
Urosaurus ornatus wrighti
Cnemidophorus tigris septentrionalis
Cnemidophorous velox
Thamnophis elegans vagrans
Bufo woodhousei woodhousei
Yeltow-headed collared Lizard Crotaphytus collaris auriceps
EXHIBIT I
SOILS
Two types of soil are evident on the site as shown on the
accompanying map. The low areas along the banks of the
Colorado River are typified by alluvial soils while the
higher areas along the central portion of the site are
typified by soil of the Potts series.
The alluvial soils exhibit considerable variation in depth
and texture as a consequence of the river's seasonally fluc-
tuating depth. Gravel and cobblestones are commonly found
at the soil's surface while the subsoil is generally charac-
terized by loamy sands intermixed
Isolated pockets of
soil. Due to their
alluvial soils will
with gravel and cobblestones.
highly saline materials are found in the
stoniness and occasional salinity, the site's
be of little value in reclamation work.
Deepzand well drained, the Potts soil generally exhibits a
loamy 4 -inch surface layer underlain by a clay loam substrate
which extends to depths of between 36-40 inches. The bulk of
the Potts soil on-site has been tilled, however, and the loamy
surface layer has become mixed with the substrate giving the
soil a slightly clayey texture overall. The soil will, never-
theless, be useful in reclaiming the site and the upper 24"
will be salvaged to the maximum extent practicable.
EXHIBIT J
VEGETATION
Three categories of vegetation are identifiable on the site,
each corresponding closely to the site's soils.
Along the banks of the Colorado River, a riparian cottonwood -
willow community has become established on the alluvial soils.
The dominant species in this community include narrowleaf
cottonwood (Populus angustifolia), fremont cottonwood (Populus
fremontii), willow (Salix spp.) and tamarisk (Tamarix pentandra).
On the loamy soils in the central portion of the site, a major-
ity of the land has been used for production of hay. Currently,
the dominant grass found in the cultivated area is smooth
brome (Bromus inermis).
In uncultivated areas, the natural vegetation is characterized
by a sagebrush-rabbitbrush community underlain by an under -
story of native grasses. Dominant species include big sage-
brush (Artemesia tridenta), golden rabbitbrush (Chrysothamnus
nauseousus), western wheatgrass (Agropyron smithii), saltgrass
(Distichlis stricta) and Arizona fescue (Festuca arizonica).
Following is a list of species noted during a September visit
to the site.
SPECIES LIST
Scientific Name Common Name
Populus angustifolia Narrowleaf cottonwood
Populus fremontii Fremont cottonwood
Salix spp. Willow
Tamarix pentandra Tamarisk
Acer negundo Box elder
Artemesia tridentata Big sagebrush
Chrysothamnus nauseousus Golden rabbitbrush
Rhus trilobata Skunkbush
Gutierrezia italicum Snakeweed
Sitanion hystrix Squirreltail
Solidago spp. Goldenrod
Asclepias speciosa Milkweed
Salsola kali Russian thistle
Agropyron spicatum Bluebunch wheatgrass
Agropyron smithii Western wheatgrass
Distichlis stricta Saltgrass
Festuca arizonica Arizona fescue
Stipa comata Needle -and -thread
Bouteloua gracilis Blue grama
Bromus inermis Smooth brome
Poa spp. Bluegrass
Opuntia polycantha Prickly pear
TOWN of SILT
P /u, I i»i .1,/( ( c'Lu,i,lo S/(,5,2 303 876.235.1
January 22, 1982
Chairman
Garfield Board of County Commissioners
Glenwood Springs, Colorado
Dear Mr. Chairman;
Thank you for the opportunity to review the request of Asphalt
Paving Company for gravel extraction and processing - portable
asphalt and concrete plant.
We recommend denial based upon several grave concerns.
1. With our water intake system and wastewater facility located
immediately adjacent to this proposed pit, changes in surface and
sub -surface water quality and flow pose grave hazards to the Town
2. This area is adjacent to a pending annexation. As such it
is not the type of development that would be compatible to the
proposed land uses for that annexation. It is not compatible with
the existing comprehensive plan for the Town. I do not believe it
will be compatible for the re -write of the comprehensive plan.
3. As we have indicated before, cumulative traffic impacts of
proposed gravel pit activity poses a clear threat to the Town's
economic revitalization as well as presenting an imment danger to
the residents using the Silt interchange.
4. The Town's residents are extremely concerned over the
impact of visual pollution caused by the smoke of the asphalt plant
as well as the dust and noise generated by the activity, not with-
standing the existence of State Standards.
Sincerely,
VL—
David C. Weitze
Town Administrate
r
1
TOWN
1' () 1;,,, 7 I 5;11, r ,pl,J,, 8165.? dna 876 7353
March 3, 1982
Gilbert Rindahl
2180 S. Ivanhoe Street
Denver, Colorado 80222-0166
Dear Mr. Rindahl,
This letter is to confirm that you have met with the
Staff of the Town of Silt regarding our concerns about your
proposal.
As we do not have resolution of these issues, we can
not recommend approval.
We remain open to any considerations you might offer.
Sincerely,
Davi(( G. Weltzel-
Town Administrator
cc: Board of Commissioners
Planning Commission
Si ATE OF COLORADO
Richard D. Lamm, Governor
DEPARTMENT OF NATURAL RESOURCES
DIVISION OF WILDLIFE
Jarl. R. Grieb, Director
6060 Broadway
Deriver, Colorado 80216 (825-1192)
526 Pine St.
Glenwood Springs, CO 81601
Mr. Terry L. Bowman
Garfield County Planning
2014 Blake Avenue
Glenwood Springs, CO 31601
January 14, 1982
RE: Special Use Permit - Asphalt Paving Company Gravel Pit
Dear Terry:
The Division of Wildlife has reviewed Asphalt Paving Company's proposed gravel
operation near Silt, Colorado, and would offer the following continents.
The proposed operation is located in an extremely sensitive wildlife area and as
such will require modification of the proposed mining plan in order to reduce adverse
impacts to resident wildlife populations. The Colorado River corridor near Silt is
an extremely important wintering area for the endangered bald eagle. The eagles
utilize the channels near the proposed operation as well as the islands themselves
as hunting areas. The large cottonwood trees located on the islands serve as hunting
perches and roost sites for the eagles. I have enclosed a map depicting bald eagle
observations recorded over the past three winters by Division of Wildlife and Bureau
of Land Management personnel. As evidenced by the preponderance of hunting perches
and the communal roost site, this area is heavily used by the bald eagle. This
corununal roost site is one of only four known roost sites on the Colorado River.
A conmunal roost site is where the eagles tend to congregate for the night and is
generally indicative of a high eagle use area.
Intensive activity, such as a gravel operation, within a high eagle use area, could
place additional stress on the eagles, or cause abandonment of this area by the eagles
to an area of less suitable habitat. The Silt area represents an area of optimum hab-
itat selected by the eagles over the years because of the available perch and roost
trees, and the abundant food source. Research studies have shown that eagles wintering
in suboptimal habitat are subject to more stress and have lower reproductive success
than eagles wintering in optimum habitat. Since it is the intent of the Endangered
Species Act and the Bald Eagle Protection Act to prevent further decimination of the
bald eagle population it would seem imperative that activities potentially harmful to
the eagles he notified to prevent any adverse impacts.
In addition to the perch sites and communal roost site, the largest known great blue
heron rookery on the Colorado River is found on the island adjacent to the proposed
gravel operation (note map). The herons are very sensitive to disturbance especially
during the nesting season from April 1 to May 15. The wetlands and shallow areas of the
river channels represent an important food source area for the herons. Precautions
(APARTMENT OF NATURAL RESOURCES, Harris Sherman, Executive Director • WILDLIFE COMMISSION, Michael Higbee, Chairman
Wilbur Redden, Vice Chairman • Sam Caudill, Secretary • Jean K. Tool, Member • Vernon C. Williams, Member
James Smith, Member • Donald Fernandez, Member • Richard Divelbiss, Member
Mr. Terry L. Bowman
Page 2
January 14, 1982
should he taken to prevent any distrubance to the herons during the nesting period and
to preserve the integrity of the wetlands and water channels.
Another important wildlife specie that will be impacted by the proposed y.avel operation
is the Canadian goose. The islands, including the island where the main operation is
planned, are used as nesting and brood rearing areas by the geese. The complex of
channels and islands provide excellent habitat for rearing the young geese and attract
a large concentration of geese into the area from March 1 through May 30. Most of the
nest sites are located on the upper p Otion of the wetland areas designated on the map.
The riparian zone which includes both the wetland and upland areas adjacent to the
river represents only two percent of the total land mass in Colorado yet is used by 90
percent of all wildlife during some part of their life cycle. In addition to providing
important wildlife habitat, the wetland corridor serves to provide important water
quality functions by acting as a natural filter and flood control mechanism. Another
important function provided by the wetland/cottonwood area (i.e. phase 1v and V mining
area), is that it protects adjacent areas from mining activities by serving as a natural
vegetative screen and buffer. Since the heron rookery, bald eagle perch sites, and
roost site is located immediately adjacent to this operation this is an extremely
important function.
Having evaluated the proposed yiavel operation it is apparent that if mining is to occur
at this site the existing mining plan will have to be modified to reduce potential adverse
impacts to resident wildlife populations. I would recommend that the following be made
conditions of the special use permit in order to protect existing vegetation, water
quality, and wildlife:
(1) Phase IV and V should not be mined. Both areas are composed primarily of wet-
lands containing vegetation that provides important water quality functions, acts
as a vegetative screen, and encompasses essential wildlife habitat, especially
for bald eagles, great blue herons, and Canadian geese. Mining in these two
areas would not only remove this vegetation and its functions but could disrupt
great blue heron nesting as well as bald eagle use of the area. If phase IV
and V are not mined they will retain normal riparian functions and serve to
buffer mining disturbance on the large island from the herons and eagles.
With respect to information presented on the pre -mining map, the wetlands
adjacent to the north channel of the large island are not shown. The wet-
land area on the southern area is shown but the channel which traverses the
wetland is not shown (please note enclosed map). A 404 permit is needed to
work in both areas.
(2) A 100' greenbelt should be left between the pit and the river and along both
the north and south wetland channel.
(3) The sediment pond should be located to the south of the north overflow channel
so that it can discharge into the channel rather than directly into the river.
(4) The pit shoreline and bottom should be irregular to enhance aquatic life forms.
Peninsulas are desirable since they create additional edge.
(5) Several islands with natural vegetation should he left to provide nesting areas
for waterfowl and passerine birds.
Mr. Terry L. Bow,
Page 3
January 14, 1982
(6) Cottonwood trees should he retained around the perimeter of the pit (i.e.
the greenbelt). Any cottonwood trees removed should be replaced on a 1:1
basis.
(7) An area sloped at 5:1 and 150' in length should be left along the south-
western corner to create a mudflat for waterfowl and encourage growth of
aquatic emergents.
(8) Areas of intensive activity such as a crusher, batch plant, etc., should
be located away from the river, preferably near the road.
(9) No activity should occur on the western end of the island from March 1 to
May 15 to prevent disruption of great blue heron nesting.
(10) Disturbed areas should be revegetated with native shrubs and grasses.
It is my opinion that if these recommendations are implemented impacts to wildlife and
this riverine ecosystem can he minimized. I would re-emphasize the importance of not
mining phase IV and V because of the critical habitat contained in these tracts and
because of the potential impacts to wildlife, particularly the bald eagle and great
blue heron.
Me Division of Wildlife appreciates the opportunity to comment on this project.
Sincerely,
Michael R. Grade
Wildlife Biologist
NRG:ch
Enc.
xc: J. Leslie
P. Will
(2) File - Silt Pit (Asphalt Paving) -Garfield)
STATE OF COLORAD.
Richard D. Lamm, Governor
DEPARTMENT OF NATURAL RESOURCES
DIVISION OF WILDLIFE
Jack R. 6rleb, Director
6060 Broadway
Denver, Colorado 80216 (825-1192)
March 4, 1982
Terry Bowman
Garfield County Planning Department
2014 Blake Avenue
Glenwood Snrings, CO 81601
RE: Asphalt Paving Company Gravel Pit - Silt
Dear Terry,
With respect to our letter of January 14,1982, I will attempt to clarify
our position. It is the policy of the Division of Wildlife to oppose development
or intensive types of activity, including gravel operations, in areas containing
critical wildlife habitats similar to that found at and adjacent to the Asphalt
Paving site near Silt. However,if the operation is p^rmitted, it is our desire
that the recommendations contained in our letter of January 14, be strictly
adhered to by the applicant in order to reduce possible adverse impacts to wild-
life.
]-lease feel free to call me if there are any questions regarding our position
or recommendations•
Sincerely,
it
n 17
Michael R. Grode
Wildlife Biologist
cc P Will
File (2) - Silt pit (Asphalt Paving) - Garfield
DEPARTMENT OF NATURAL RESOURCES, Monte Pascoe, Executive Director • WILDLIFE COMMISSION,Wilbur Redden, Chairman
Donald Fernandez, Vice Chairman • James Smith, Secretary • Jean K. Tool, Member • Vernon C. Williams, Member
Michael Higbee, Member • Sam Caudill, Member • Richard Divelbiss, Member
I
I r.-; c U. Lrnr ["',(;n
DEPARTMENT OF NATURAL RESOUFCE`.
DIVISION OF WILDLIFE
Jack R. Grieb, Director
6060 Broadway
Denver, Colorado 80216 (825-1192)
526 Pine Street
Glenwood Springs, CO 81601
April 7, 1982
MS. Ann Hodgson
Rindahl & Associates
P.O. Box 24166
2180 Ivanhoe Street
Denver, CO 80222
Dear Ann:
In response to your letter of March 9, 1982, and the meeting of March 26, 1982, I
would offer the following comments:
1. The Division of Wildlife has requested that Phase IV and V not he mined. It
is my understanding that Phase V will not be mined. We commend this action
but would still request Phase IU not be mined.
2. The 100 foot undisturbed buffer between the pit and the river and along both
north and south wetland channels has been partially agreed upon. A 100 foot
buffer will apply to all but the north overflow channel. Because of the
important habitat contained within this area we would still like to maintain
the 100 foot setbacks along the north channel.
3. We agree also to abide by the Corps of Engineers' wetlands determination
4. The seasonal mining restriction between March 1 and May 15 at the west end
of the island is acceptable and should provide adequate protection to the
heronry.
5. There is no problem surrounding the NPDES permit.
6. The retention of cottonwood trees and planting of cottonwoods during reclamation
is agreed upon, as is the irregular pit bottom and shoreline.
7. The Division would still prefer to have an island in the lake but realize lack
of reject material may preclude island creation. An island could, however, be
left during the mining phase.
8. The Division agrees to the mudflat length being a minimum of 70-90 feet providing
insufficient material exists. If more material is available we would suggest that
a mudflat yteater than 90 feet be constructed.
DEPARTMENT OF NATURAL RESOURCES. Monte Pascoe. Executive Director • WILDLIFE COMMISSION, Donald Fernandez, Chairman
James Smith, Vice Chairman • Richard Divelbiss, Secretary • Jean K. Tool. Member • James C. Kennedy, Member
Michael Higbee. Member • Sam Caudill. Member • Wilbur Redden. Member
./
/Ms. Ann Bodgso
P.indahl & Associates
IP
April 7, 1982
Page.2
9. The Division is also in agreement with the location of the batch plant and MLR
revegetation requirements.
The rendations contained in our January 14, 1982 letter to Garfield County
enumerate the minimum mitigation we fool is necessary to maintain the integrity of the
ecosystem at this location if a gravel operation is permitted. Although the Division
of Wildlife does not-famor mining at this site, we do appreciate the .itig-five efforts
mule thus far. If your gravel operation is pennittecl itis out intent to work
cooperatively with you in providing assistance when needed in order to implement the
best wildlife management practices available at this site.
Sincerely,
Michael R. Grode
Wildlife Biologist
MRG:ch
xc: J. Leslie
P. Will
C. Grand Pre
Terry Bowman - Garfield County Planning'7
File (2) Silt Pit (Asphalt Paving) - Garfield
P.S. With regard to the Prather Pit, the Division has no further comments but
would re emphasize the importance of the wetlands and undisturbed 100 foot
setback.
•
GINGERY ASSOCIATES, INC.
CONSULTING ENGINEERS
2777 CROSSROADS BLVD., SUITE D.2
GRANO JUNCTION, COLORADO 81501
(303) 245.0627
March 24, 1982
Asphalt Paving Co.
P.O. Box 5
Silt, CO. 81652
ATTN: Mr. Bill Keller
RE: Silt Gravel Mining Operation
Dear Mr. Keller:
PRINCIPALS
DERYL W GINGERY
WILLIAM A STERLING
W KEVIN WILLIAMS
FLOYD E. MONTGOMERY
DOUGLAS C STOVALL
THOMAS J. STONE
A L. ROBINSON
WALLACE R LUCHETTI
DAVID E MOOTHART
During the past several weeks, Gingery Associates, Inc
through coordination with Gilbert Rindahl, has been
involved in assessing potential hazard to Colorado
River channel near and adjacent to the town of Silt,
water intake facility. Gingery Associates Inc. and
subsequently my involvement in this project has been
somewhat nebulous, to say the least. Gingery has been
put in the position of pivot point for approval of
this project by the Town of Silt. In that if Gingery
could convince the towns.engineering representative,
Mr. Ted Wing, Armstrong Associates, Inc., the town
would not protest the proposed mining operation.
Mr. Kevin Williams and myself met with Mr. Wing at his
office to discuss this and the towns concern relating
to the potential alteration of the Colorado River
channel due to the proposed mining operation. The
initial discussion with Mr. Wing centered around
extending the town's infiltration gallery to a point
where in the event a flood occured, and the dikes
along the mining operation failed, the towns water
source would not be impaired. Gingery Assoicates
agreed to examine the problem and make a recommendation
regarding the infiltration gallery. Initially when the
North island was to be mined, an extension of the
infiltration gallery into the reservoir formed by the
mining operations appeared to be both logical and appropriate.
ENGLEW000 - GRANO JUNCTION
•
Subsquent discussions with Mr. Jeff Keller of your
office revealed that the North Island would not be
mined, therefore the logic and praticality of extending
the gallery was no longer appropriate. With the advancement
of the conclusion of mining only the South Island it became
apparent that in the event of a major flood, little impact
could be reasonably anticipated in relation to the towns
intake.
The concept being that the South Island is a considerable
distance away from the intake and that any erosion of the
South pond dikes would not have a greater impact than if
the mining operations did not exist at all. This concept
has a minor ramification in the unlikely event a dike
did fail, there would exist a very remote possibiltity
that the river channel could move away from it's present
location. To mitigate this ramification, Gingery Associates
suggested that a system of inlet and outlet piping located
well above normal water levels, but below flood levels,
be installed to insure that water levels in the ponds
stayed at approximately the same level as the river
during flood stage. Applying this concept would eliminate
that destructive erosion caused by high velocity water
movement from a high level to a lower level. This concept
might be called the "full bucket" concept. Very simply
stated, when a bucket is inserted into a barrel of water,
water rushed into the bucket at a very rapid rate. But,
when the bucket is full, water ceases to rush in. Our
point is making sure the bucket fills at the same rate
as the barrel.
At a meeting attended by Mr. Wing, Mr. Jeff Keller, and
myself, this concept was advanced for discussion and/or
approval, After explaining our concept to Mr. Wing
it became very apparent that the problem in engineering
terms is insoluable as Mr. Wing was interested in specific
engineering data to the extent of possibly modeling
a section of the river to prove the concept. Mr. Wing
admitted the concept had merit, but that the town wanted
more numbers. When asked how many more numbers, it appeared
that there was no limit to the investigations and research
that may be required before the town was satisfied with our
concept. Based on statements by Mr. Wing, it became apparent
in my opinion, that Asphalt Paving Co. may be required to
study this problem to a point beyond feasible economic
limits, thus the project would be effectively disapproved
without the town making any formal declaration.
I recommend that the political problems of the project
overshadow reasonable engineering considerations, therefore,
Asphalt Paving Co. should not expend large sums of money
trying to answer engineering questions.
Respectfully submitted,
GINGERY ASSOCIATES, INC.
A.L. Robinson, P.E.
Chief Engineer
ALR/dc
The Seri q2u
April 1, 1982
Mr. Arnold Mackley, Chairman
Garfield County Planning Commission
2014 Blake Avenue
Glenwood Springs, CO 81601
Re: Proposed Gravel Pit
Dear Mr. Chairman:
14802 W. 44TH AVENUE
GOLDEN, COLO. 80401
279-6611
APR 61982 GI
GARFIELD CO. PL41 ER
I would like to take this opportunity to list for you and the other com-
mission members the concessions that Asphalt Paving Co. has made in order
to mitigate the concerns associated with our proposed Silt Pit.
The concessions are as follows:
1. Eliminating phase V from the mining plan. This was done to protect
vital wildlife habitat and to add an increased buffer between our
operation and the Town of Silt's water intake system.
2. We agree to leave 100 ft. buffer zones, as opposed to the originally
proposed 50 ft. buffer zones, between the Colorado River and any excava-
tion. This was done in accordance with recommendations from the Colorado
Division of Wildlife and the Mined Land Reclamation Division.
(As you can see from #1 and #2, we, as operators, have dropped from 86
acres to 54 acres of proposed mining area. This is a drop of approxi-
mately 36 percent which, needless to say, creates a substantial burden
on us as both owner and operator.)
3. We will leave all cottonwood trees within the 100 ft. buffer zone as
well as replant new ones in our reclamation process. This is to satisfy
the Colorado Division of Wildlife in regard to bald eagles and great
blue herons, and to satisfy the Mined Land Reclamation Division.
4. No activity will occur at the western end of the project between March 1
and May 15 to afford protection to nesting great blue herons and Canada
geese.
5. We will leave irregular shorelines and construct a 70 - 90 ft. mudflat
to satisfy a Division of Wildlife recommendation.
6. We have also agreed to work with the Division of Wildlife and pay for
nesting platforms for the Canada geese.
Arnold Mackley
April 1, 1982
Page 2
7. We agree to hold trucking to a minimum until the completion of the new
Silt bridge (which looks to be complete around the end of 1982.) In
addition, we will repair any damage to the county roads that is caused
by Asphalt Paving Co. hauling units. These concessions are acceptable
to Mr. Leonard Bowlby, Garfield County Road Supervisor.
8. We have also agreed to work with the Town of Silt and pay our fair
share of a traffic study to be done by Centennial Engineering Co. of
Carbondale.
9. We also employed Gingery Associates, Inc. to analyze the situation in
regard to Silt's water system. In addition, we agreed to pay for Ted
Wing's time in any such analysis. (Ted is of Armstrong Associates and
is the engineer for Silt's water system.)
10. We have also agreed to limit intensive activity to the plant site rather
than the entire site.
In addition, we have adhered to the permitting process and have obtained or
will be obtaining water discharge permits, air emission permits and 404 permits
for dredging and filling. We will also have to post a bond for reclamation,
which will be done in accordance with the Mined Land Reclamation Board.
In conclusion, I believe this letter expresses our concern and commitment
towards making. our operation compatable with, and an asset to Garfield
County. This company stands ready to work with Garfield County for a mean-
ingful working relationship to minimize any important issues.
Please don't hesitate to call us if you have any questions or if you need
additional information.
Respectfully yours,
ASPHALT PAVING CO.
JWK:nb
cc: Terry Bowman
Garfield County Planner
. Keller
LETTER OF PROTEST
„arch 22, 1982
RE: Special Use Permit request by Asphalt Paving Company to mine gravel and locate
asphalt and concrete batch plants near Silt, Colorado.
ATTENTION: Members of the Planning and Zoning Commission of Garfield County
Garfield County Commissioners
WE WISH TO HEREBY GO ON RECORD IN OPPOSITION TO HAVE THE ABOVE REQUEST FOR THE
FOLLOWING REASONS:
1) Concentration of gravel pits in one area is an unfair burden for the residents
in that particular area. There are already two operating pits in close proxi-
mity to the proposed site. Those in existence contribute to an increased level
of dust in the air. That dust, added to the great amount of dust created by
overuse of truck traffic on County Road 335, results in untolerable dust levels
for residents in the area. These already bad conditions would only be worsened
by approval of the permit.
2) Not only the dust, but noise levels and traffic flow, especially heavy truck
traffic, would be increased to untolerable and UNSAFE levels.
3) It is not fair to impose the negative effects of over -development of the gravel
industry upon the already existent residential area.
4) Not only is it unfair to the residents, but all the flora and fauna along that
portion of the Colorado River will suffer from such extensive disturbance.
5) The already silty and saline Colorado River itself would be exposed to further
pollution.
6) The visual pollution along the scenic Colorado River corridor should not be dis-
counted.
7) In addition to the above factors, the residents of the area would be further
burdened by possible decrease in property values to those who bought property
and built homes in an area that was zoned A/R/RD or Agricultural.
All of the above factors will be worsened by another gravel pit operation in this
particular area.
Respectfully,
Gerald E. Bernhardt
21 /,/1t11er1rtc/-
Carolyn Bernhardt
C
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•
COLORADO
Richard D. Lamm
Governor
May 14, 1g82
Asphalt Paving Company
%Robert E. Lemke
14802 W. 44th
Golden, CO 80401
DEPARTMENT
ij1N5.4
18 76
OF HEALTH
drank A. Traylor, M.D.
Executi a Director
RISE
CERTIFIED: 8988t98
ft -
Y2 01982 :,1 r
GARFI EL rl
co. Iii.t{;y,A
RE: Final Permit, Colorado Wastewater DisYge Permit Number:
Garfield County
Gentlemen:
co -Oa -18'3-62-367'17/
Enclosed please find a copy of the permit issued under the Federal Clean
Water Act and Colorado Water Quality Control Act.
Issuance of this permit constitutes a final determination by the Division
of Administration of the Colorado Department of Health, in conjunction
with the U.S. Environmental Protection Agency and may be subject to
administrative review proceedings pursuant to the State Administrative
Procedure Act, including an adjudicatory hearing. You are advised to
consult this act and particularly to consult Sections 24-4-104, 24-4-105,
24-4-102(7), and 25-8-401, C.R.S. 1973 for more information. In
additions, the Regulations for the State Discharge Permit System contains
material that.is pertinent to any administrative review of the issuance
of this permit.
Your Waste Discharge Permit required that specific action be performed at
designated time. Failure to meet these requirements constitutes a
violation of this permit and can result in civil aryl/or criminal
action(s). Please read the permit very thoroughly.
1. All municipal arra industrial facilities are required to submit
self-monitoring information. (PART 1.B. Monitoring and Reporting).
Frequencies and types of self-monitoring are summarized in PART I.A.
Effluent Limitations and Monitoring Requirements.
2. Monitoring and reporting requirements for feedlots are described in
PART I.A. Effluent Limitations and Monitoring Requirements (see 2.C.)
and in PART I.B. Monitoring and Reporting.
GARFIELD COUNTY i'`•
•
4210 EAST 11TH AVENUE DENVER,COLORADO 80220 PHONE (303) 320-8333
NEW
Permit No. CO -0038971
County: MESA
AUTHORIZATION TO OISCHARGE UNDER THE
COLORADO DISCHARGE PERMIT SYSTEM
In compliance with the provisions of the Federal Water Pollution Control
Act, as amended (33 U.S.C. 1251 et. seq.; the "Act"), and the Colorado Water
Quality Control Act (25-8-101 et. seq., CRS, 1973 as amended)
Asphalt Paving Company
is authorized to discharge from. their DeBeque Pit,
located in the Southwest k of the Southwest s of Section 4 and in the
North } of Section 9, Township 9 South, Range 97 West, approximately 2} miles
south of DeBeque, Colorado.
to the Colorado River
in accordance with effluent limitations, monitoring requirements and other
conditions set forth in Part -I, II, and III hereof.
This permit shall become' effective thirty (30) days after the date of
receipt of this permit by the Applicant. Should the Applicant choose to
contest any of the effluent limitations, monitoring requirements or other
conditions contained herein, he must comply with Section 24-4-104 CRS 1973
and the Reguiattons for the State Ofscharge Permit System. Failure to
contest any such effluent limitations, monitoring requirement, or other
condition is consent to the condition by the Applicant.
This permit and the authorization to discharge shall expire at midnight,
March 31, 1987
Signed this 7frday of 1 /9era-
COL;' • 00 ,gEPARTv4QNT OF HEALTH
G ry G. $Foetzman.
Dir- tor
Water Quality Control Division
5/81
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EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - SEE ANY ADDITIONAL REQUIREMENTS UNDER PART
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PART 1
Page 2 of 16
Permit NO.00-0033971
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PART I
-ige 3 of 16
ermit No: C0-0038971
A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Continued)
2. Monitoring Requirements
In order to obtain an indication of the probable compliance or
noncompliance with the effluent limitations specified in Part
1, the permittee shall monitor all effluent parameters at the
following required frequencies.
Effluent Parameter
Flow (MGD)
pH (s.u.)
Total Suspended Solids
Oil and Grease (mg/1)
Salinity g/ h/
Measurement Frequency d/e/ Sample Type f/
Instantaneous
Weekly or .Continuous
Weekly Grab
Monthly Grab
Weekly Visual of Grab
Quarterly Grab
(mg/1)
Self-monitoring samples taken in compliance with the monitoring requirements
specified above shall be taken at the following location(s): at the outfall
from the pump at 001, 002 and 003
d) Monitoring is required only during periods of discharge. If "no
discharge" occurs, this shall be reported at the specified frequency.
(See Part B.)
e) When the measurement frequency indicated is quarterly, the samples
shall be collected during March, June, September, and December if
a continual discharge occurs. If the discharge is intermittent, then
samples shall be collected during the period that discharge occurs.
f) See definitions, Part B.
g) Salinity shall be measured as Total Dissolved Solids (TDS) or elec-
trical conductivity where a satisfactory correlation with TDS has been
established based on a minimum of five (5) samples. Samples shall be
taken at the permitted discharge point.
h) Salinity shall be sampled on a monthly basis until six samples have
been analyzed. Thereafter, monitoring shall continue on a quarterly
basis. Following submittal of the first six months of data, the Division
shall determine eligibility of.a:awajvenrof::numer-ic.:limitations based on
salt -loading. If a waiver is not granted, then the permittee has an
additional six months to submit a report addressing salt removal in ac-
cordance with Regulations 3.10.0 - 3.10.5 and Appendix A.
PART I
Page 4 of 16
PERMIT NO:C0-0038971
8. MONITORING AND REPORTING
1. Representative Sampling
Samples and measurements taken as required herein shall be representative
of the volume and nature of the monitored discharge.
2. Reporting
Monitoring results obtained during the previous 3 months
summarized for each calendar quarter and reported -on - app
discharge monitoring report forms (EPA Form 3320-1), pos
later than the 28th day of the month following the comp)
For example, for the 1st quarter (January, February and
report would be mailed on or before April 28.. If no dis
during the reporting period, "No Discharge" shall be rep
Duplicate signed copies of these, and all other reports
herein, shall be submitted to the Regional Administrator
State at the following addresses:
Colorado Department of Health
Water Quality Control Division
Monitoring & Enforcement Section
4210 East llth Avenue
Denver, Colorado 80220
3. Definitions
shall be
licable-
tmarked no
eted. quarter.
March) the
charge occurs
orted.
required
and the
U.S. Environmental Protection Agency
1860 Lincoln Street - Suite 103
Denver, Colorado 80295
Attention: Enforcement - Permit Program
a. A "composite" sample, for monitoring requirements, is defined as a
minimum of four (4) grab samples collected at equally spaced two (2)
hour intervals and proportioned according to flow.
b. A "grab" sample, for monitoring requirements, is defined as a single
"dip and take" sample collected at a representative point in the
discharge stream.
c. An "instantaneous" measurement, for monitoring requirements, is defined
as a single reading, observation, or measurement using existing monitor-
ing facilities.
4. Test Procedures
Test procedures for the analysis of pollutants shall conform to regulations
published pursuant to Section 304 (h) of the Act, and Colorado State Effluent
Limitations (10.1.5), under which such procedures may be required.
5. Recording of Results
For each measurement or sample taken pursuant to the requirements of this
permit, the permittee shall record the following information:
a. The exact place, date, and time of sampling;
b. The dates the analyses were performed;
c. The person(s) who performed the sampling;
3/81
PART 1
'age 5 of 16
ermit No:CO-0038971
d. The person(s) who performed the analyses;
e. The analytical techniques or methods used; and
f. The results of all required analyses.
6. Calculations for all limitations which require averaging of
measurements shall utilize an arithmetic mean unless otherwise
specified.
7. Additional Monitoring by Permittee
If the permittee monitors any pollutant at the location(s) designated
herein more frequently than required by this permit, using approved
analytical methods as specified above, the results of such monitoring
shall be included in the calculation and reporting of the values
required in the Discharge Monitoring Report Form (EPA No. 3320-1),
or other forms as requiredby the Division. Such increased frequency
shall also be indicated.
8. Records Retention
A11 records and information resulting from the monitoring activities
required by this permit including all records of analyses performed
and calibration and maintenance of instrumentation and recordings
from continuous monitoring instrumentation shall be retained for a
minimum of three (3) years, or longer if requested by the Regional
Administrator or the State Water Quality Control Division.
9. Special One -Time Monitoring
At the first instance of discharge, grab samples shall be taken and
analyzed for the following parameters:
pH (s.u.)
Alkalinity (mg/1)
Total Suspended Solids (mg/1)
Oil and Grease (mg/1)
Total Dissolved Solids (mg/1)
Results shall be submitted to the Permits Section, Water Quality
Control Division, within 14 days of receipt.
1/81
PART I-
Page 6 of 16
Permit No.CO-0038971
C. SPILL PREVENTION AND CONTAINMENT PLAN
The permittee shall, within sixty (60) days after the effective date of this permit,
submit to the State Water Quality Control Division, a spill prevention and
containment plan, prepared by a professional engineer registered in the State
of Colorado. Plans shall include information and procedures for the prevention
and containment of spills of materials used, processed, or stored, at the
facility which could possibly be spilled and might have a visible or otherwise
detectable impact on the waters of the State. The plan should include but not
necessarily be limited to the following:
1. A history of spills which have occurred in the three (3) years preceeding the
effective date of this permit. The history shall include causation of the
spillsand a discussion of preventive measures designed to prevent them
from reoccurring;
2. A description of the reporting system which will be used to alert responsible
facility management, the State Water Quality Control Division, the
Environmental Protection Agency, downstream water users, and local health
officials;
3. A description of preventative facilities (including overall facility plot)
which prevent, contain, or treat, spills and unplanned discharges;
4. A list of all materials used, processed, or stored, at the facility which
represent a potential spill threat to surface waters;
5. An implementation schedule for additional facilities which might be required
in (3) above, but which are notyet operational;
6. A list of available outside contractors, agencies, or other bodies which
could be utilized in the event of a spill in order to clean up its effects;
7. Provision for periodic review and updating of the contingency plan.
The foregoing provisions shall in no way render inapplicable those requirements
imposed by Section 311 of the Federal Water Pollution Control Act Amendments of 1972,
regulations promulgated thereunder, the Colorado Water Quality Control Act, and
regulations promulgated thereunder.
Nothing herein contained shall be construed as allowing any discharge to waters of
the State other than through the discharge points specifically authorized in this
permit. Nothing herein contained shall be construed as waiving any liability the
permittee might have, civil or criminal, for any spill.
If this facility has an approved spill prevention and containment plan now in effect,
please submit a copy of this plan with an update, if necessary.
2/2/77
PART 11
Page 7 of i6
Permit No:CO-0038971
A. MANAGEMENT REQUIREMENTS
1. Change in Discharge
All discharges authorized herein shall be consistent with the terms
and conditions of this permit. The discharge of any pollutant
identified in this permit more frequently than or at a level in
excess of that authorized shall constitute a violation of the permit.
Any anticipated change in discharge location, facility expansions,
production increases, or process modifications which will result
in new, different, or increased discharges or pollutants must be
reported by submission of a new NPDES application or, if such changes
will not violate the effluent limitations specified in this permit,
by notice to the State Water Quality Control Division of such changes.
Process modifications include, but are not limited to, the introduction
of any new pollutant not previously identified in the permit, or any
other modifications which may result in a discharge of a quantity or
quality different from that which was applied for. Following such
notice, the permit may be modified to specify and limit any pollutants
not previously limited.
2. Noncompliance
(A) Definitions
(B)
(1)
Upset: An exceptional incident in which there is unintentional
and temporary noncompliance with technology-based permit
effluent limitations because of factors beyond the reasonable
control of the permittee.
(2) Bypass: The intentional diversion of waste streams from any
portion of a treatment facility.
(3) Severe Property Damage: Substantial physical damage to property,
to the treatment facilities to cause them to become inoperable, or
substantial and permanent loss of natural resources which can
reasonably be expected to occur in the absence of a bypass. It
does not mean economic loss caused by delays in production.
Notification
(1)
1/81 NON FEEDLOT
If, for any reason, the permittee does not comply with or will be
unable to comply with any maximum discharge limitations or
standards specified in this permit, the permittee shall, at a
minimum, provide the Water Quality Control Division and EPA with
the following information:
a) A description of the discharge and cause of noncompliance
b) The period of noncompliance, including exact dates and times
and/or the anticipated time when the discharge will return to
compliance; and
c) Steps being taken to reduce, eliminate, and prevent recurrence
of the noncomplying discharge.
"ART II
.'age 8 of 16
Permit No:CO-0038971
2. Noncompliance (cont'd)
(2) The following instances of noncompliance shall be reported orally
within 24 hours from the time the permittee becomes aware of the
circumstances, and a written report mailed within five days of
the time the permittee becomes aware of the circumstances:
a) Any instance of noncompliance which may endanger health or
the environment
(3)
b) Any unanticipated bypass which exceeds any effluent limitation
in the permit
c) Any upset which exceeds any effluent limitation in the permit
(See Fed. Reg. Vol. 45, No. 98, 122.60 (h) for upset conditions)
d) Daily maximum violations for any toxic pollutants or hazardous
substances limited in PART I -A of this permit.
The permittee shall report all instances of noncompliance not
reported in "Notification", paragraph 2-(B)-(2) (above), at the
time discharge monitoring reports are submitted (EPA Form 3320-1).
The reports shall contain the information listed in "Notification",
paragraph 2-0)-(1) (above).
(4) Where the permittee becomes aware that it failed to submit any
relevant facts in a permit application, or submitted incorrect
information in a permit application or report to the Division,
it shall promptly submit such facts or information.
(C) Bypass
(1)
The permittee may allow any bypass to occur which does not cause
effluent limitations to be exceeded, but only if it also is for
essential maintenance to assure efficient operation. No Division
notification is required, and this case is not subject to the
requirements in paragraphs 2-(C)-(2) through 2-(C)-(4), (below).
(2) If the permittee knows in advance of the need for a bypass, it
shall submit notice, if possible at least ten days before the
date of the bypass, to the Division and the Environmental
Protection Agency (EPA). The bypass shall be subject to
Division approval, and limitations imposed by the Division and EPA.
(3)
For an unantici
"Notification",
(4) Bypass is proh
action against
a) Bypass was
injury, or
1/81
pated bypass, see the requirements listed in
paragraph 2-(B)-(2), (above).
ibited, and the Division may take
a permittee for bypass, unless:
enforcement
unavoidable to prevent loss of life, personal
severe property damage;
1/81
PART 11
ge 9 of 16
,ermit No: CO -0038971
2. Noncompliance (cont'd)
b) There were no feasible alternatives to the bypass, such as
the use of auxiliary treatment facilities, retention of
untreated wastes, or maintenance during normal periods.of__
equipment downtime. This condition is not satisfied if the
permittee could have installed adequate backup equipment to
prevent a bypass which occurred during normal periods of
equipment downtime or preventative maintenance; and
c) The permittee submitted notices as required in
"Notification", paragraph 2-(B) (above).
3. Removed Substances
Solids, sludges, filter backwash, or other pollutants removed in the course
of treatment or control of wastewaters shall be disposed of in a manner such
as to prevent any pollutant from such materials from entering waters of the
State.
4. Facilities Operation
The permittee shall at all times maintain in good working order and
operate as efficiently as possible all treatment or control facilities
or systems installed or used by the permittee to achieve compliance
with the terms and conditions of this permit.
5. Adverse Impact
The permittee shall take all reasonable steps to minimize any adverse
impact to waters of the State resulting from noncompliance with any
effluent limitations specified in this permit, including such accelerated
or additional monitoring as necessary to determine the nature and impact
of the noncomplying discharge.
6. Any discharge to the waters of the State from a point source other than
specifically authorized is prohibited.
7. Reduction, Loss, or Failure of Treatment Facility
(A) The permittee shall, to the extent necessary to maintain compliance with
its permit, control production, or all discharges, or both until the
facility is restored or an alternative method of treatment is provided.
This provision also applies to power failures, unless an alternative
power source sufficient to operate the wastewater control facilities
is provided.
(9)
PART 11
'age 10 of 16
Permit No:CO-0038971
B. RESPONSIBILITIES
1. Right to Entry
The permittee shall allow the Director of the State Water Quality Control
Division, the EPA Regional Administrator, and/or their authorized repre-
sentative, upon the presentation of credentials:
(A) To enter upon the permittee's premises where a regulated facility or
activity is located or in which any records are required to be kept
under the terms and conditions of this permit;
At reasonable times to have access to and copy any records required to
be kept under the terms and conditions of this permit and to inspect
any monitoring equipment or monitoring method required in the permit; and
(C) To enter upon the permittee's premises to reasonably investigate any
actual, suspected, or potential source of water pollution, or any
violation of the Colorado Water Quality Control Act. The investigation
may include, but Is not limited to, the following: sampling of any
discharge and/or process waters, the taking of photographs, interviewing
of any persons having any knowledge related to the discharge, permit,
or alleged violation, and access to any and all facilities or areas
within the permittee's premises that may have any affect on the
discharge, permit,or alleged violation.
2. Duty to Provide Information
The permittee shall furnish to the Division, within a reasonable time, any
information which the Division may request to determine whether cause
exists for modifying, revoking and reissuing, or terminating this permit,
or to determine compliance with this permit.
(8)
3. Transfer of Ownership or Control
In the event of any change in control or ownership of facilities from which
the authorized discharges emanate, the permittee shall notify the succeeding
owner or controller of the existence of this permit by letter, a copy of
which shall be forwarded to the Regional Administrator and the State Water
Quality Control Division.
4. Availability of Reports
Except for data determined to be confidential under Section 308 of the Act
and Regulations for the State Discharge Permit System 6.1.8, all reports
prepared in accordance with the terms of this permit shall be available for
public inspection at the offices of the State Water Quality Control Division
and the Regional Administrator.
As required by the Act, effluent data shall not be considered confidential.
Knowingly making anv false statement on any such report may result in the
imposition of criminal penalties as provided for in Section 309 of the Act,
and Section 25-8-610 C.R.S. 1973.
1/81
'ART 11
age 11 of 16
Permit No:C0-0038971
5. Permit Modification
After notice and opportunity for a hearing, the permit may be modified,
suspended, or revoked in whole or in part during its term for cause
including, but not limited to, the following:
(A) Violation of any terms or conditions of this permit;
(8) Obtaining this permit by misrepresentation or failure to disclose
fully all relevant facts;
(C) A change in any condition which results in a temporary or permanent
reduction, elimination, addition or increase of the permitted discharge.
(Changes in Water Quality Standards, control regulation or duly promulgated
plans would qualify as "a change in any condition.");
(D) This permit shall be modified, or alternatively, revoked and reissued, to
comply with any applicable effluent standard or limitation issued or approved
under sections 301(b)(2)(C), and (D), 304(b)(2), and 307(a)(2) of the Clean
Water Act, if the effluent standard or limitation so issued or approved:
(1) Contains different conditions or is otherwised more stringent than
any effluent limitation in the permit; or
(2) Controls any pollutant not limited in the permit.
The permit as modified or reissued under this paragraph shall also contain
any other requirements of the Act then applicable.
6. Toxic Pollutants
Notwithstanding "Permit Modification", paragraph B-5 (above), if a toxic
effluent standard or prohibition (including any schedule of compliance
specified in such effluent standard or prohibition) is established under
Section 307(a) of the Act for a toxic pollutant which is present in the
discharge and such standard or prohibition is more stringent than any
limitation for such pollutant in this permit, this permit shall be revised
or modified in accordance with the toxic effluent standard or prohibition
and the permittee so notified.
7. Civil and Criminal Liability
Except as provided in permit conditions on "Reduction, Loss or Failure of
Treatment Facility", (A-5), nothing in this permit shall be construed to
relieve the permittee from civil or criminal penalties for noncompliance.
(See Fed. Reg. Vol. 45, No. 98, 122.60).
8. Oil and Hazardous Substance Liability
Nothing in this permit shall be construed to preclude the institution of any
legal action or relieve the permittee from any responsiblities, liabilities, or
penalties to which the permittee is or may be subject under Section 311 of the Act.
2/81
PART 11
Page 12,_ of 16
Permit No: CO -0038971
9. State Laws
Nothing in this permit shall be construed to preclude the institution of any
legal action or relieve the permittee from any responsibilities, liabilities,
or penalties established pursuant to any applicable State law or regulation
under authority preserved by Section 510 of the Act.
10. Permit Violations
Failure to comply with any terms and/or conditions of this permit shall
be a violation of this permit.
11. Property Rights
The issuance of this permit does not convey any property rights in either
real or personal property, or any exclusive privileges, nor does it authorize
any injury to private property or any invasion of personal rights, nor any
infringement of Federal, State or local laws or regulations.
12. Severability
The provisions of this permit are severable, and if any provisions of this
permit, or the application of any provision of this permit to any circumstance,
is held invalid, the application of such provision to other circumstances,
and the remainder of this permit shall not be affected thereby.
13. At the request of a permittee, the Diyision may modify or terminate a permit
and issue a new permit if the following conditions are met:
(A) The Regional Administrator has been notified of the proposed modifi-
cation or termination,and does not object in writing within thirty
(30) days of receipt of notification; and
(8) The Division finds that the permittee has shown reasonable grounds
consistent with the Federal and State statutes, and regulations for
such modification or termination; and
(C) Requirements of public notice have been met.
The filing of a request by the permittee for a permit modification, revokation
and reissuance, or termination, or a notification of planned changes or
anticipated noncompliance, does not stay any permit condition.
14. It shall not be a defense for a permittee in an enforcement action that it would
be necessary to halt or reduce the permitted activity in order to maintain
compliance with the conditions of this permit.
15. Signatory Requirement
All applications, reports, or information submitted to the Division shall be
signed and certified.
1/81
PART III
Page 13 of16
Permit No:CO-0038971
GENERAL REQUIREMENTS
1. The permittee shall not discharge after the expiration date of this
permit without authorization. In order to receive authorization to
discharge after the expiration date, the permittee shall, no later
than 180 days prior to the expiration date of this permit, submit a
new NPDES application and fees as required by the permit issuing
authority.
2. The permittee is required to submit a fee as set forth in
Section 25-8-502 C.R.S. 1973 as amended. Failure to submit the
required fee is a violation of this permit and will result in the
suspension of said permit and enforcement action pursuant to Section
25-8-601 et. sec., 1973 as amended.
3. Within sixty (60) days of the effective date of this permit, the
permittee shall file a statement with the Environmental Protection
Agency and the State Water Quality Control Division which shall
contain the names of the person or persons who are designated to
report conditions as noted In "Noncompliance", Part II, Section A,
Paragraph 2, and as referenced in "0i1 and Hazardous Substance
Liability", PART 11, Section 5, Paragraph 8. The permittee shall
continually update this list as changes occur at the facility.
4. Within three (3) months after the effective date of this permit, a
flow -measuring device shall be installed at all discharge points.
At the request of the Regional Administrator of the Environmental
Protection Agency or the Director of the State Water Quality Control
Division, the permittee must be able to show proof of the accuracy
of any flow -measuring device used in obtaining data submitted in
the monitoring report. The flow -measuring device must indicate
values within ten (10) percent of the actual flow being discharged
from the facility.
5. Discharge points shall be so designed or modified that a sample of
the effluent can be obtained at a point after the final treatment
process and prior to discharge to state waters.
3/81
PART III
Page 14 of 16
Permit No.00-0038971
ADDITIONAL DEFINITIONS (Applies to Gravel Pits)
1. The term "point source" means any discernible, confined, and discrete
conveyance, including but not limited to any pipe, channel, ditch,
tunnel, conduit, well, discrete fissure, or container from which
pollutants are or may be discharged into waters of the State.
2. The term "discharge" means any addition of any pollutant or pollutants
to waters of the State, from any point source.
3. The term "10 -year, 24-hour precipitation event" means the maximum
24-hour precipitation event (usually indicated in inches) with a
probable reoccurrence interval of once in 10 years.
4. The term "deactivated point" means any location previously specified
as a permitted discharge point, where active mining and mining -
related activities have ceased and where reclamation has progressed
to a state judged sufficient to the Water Quality Control Division.
Any location having been identified and classified as a "deactivated
point" in writing shall be considered as such for permitting, monitoring,
and enforcement purposes.
°ART III
age 15 of 16
Permit CO -0038971
•
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_.J FIGURE 1
AVPHALr PAY INC CO.
ee m24 C,c01.0,*00
peeeoue Pit
°ART 111
Age 16 of 16
Permit No. CO -0038971
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CREEK
FIGURE 2
ASPHALT PAVING
DeBEQUE PIT
1FA&•
1V
COLORADO DEPARTMENT OF .ALTH
• Water Quality Control Division
4210 East 11th Avenue
Denver, Colorado 80220
RATIONALE
ASPHALT PAVING COMPANY
DeBEQUE PIT
PERMIT NUMBER: CO -0038971
MESA COUNTY
TYPE OF PERMIT: Minor Industrial - New
SIC NO: 1442, 2951
LOCATION: In the Southwest 1/4 of the Southwest 1/4 of Section 4
and in the North 1/2 of Section 9, Township 9 South,
Range 97 West, approximately 2 1/2 miles south of
DeBeque, Colorado
CONTACTS:
Robert Lemke (Legal Contact)
14802 W. 44th
Golden, CO 80401
(303)+279-6611
Rindahl & Associates (Local Contact)
P.O. Box 24166
Denver, CO 80222
(303)+692-0922
RECEIVING WATER: Colorado River, mainstem
Below the confluence with Parachute Creek
CLASSIFICATION: 2
DESIGN FLOW Dewatering from 600 to 1200 gpm
FACILITY DESCRIPTION: The facility is a sand and gravel mining operation. A
concrete mixing plant and an asphalt batch plant are
also present at the mine site.
The principal products include sand, gravel, road base,
asphalt and ready - mixed concrete.
Extraction will proceed in various phases, as shown in
the diagram on page 15. The operation has a life ex-
pectancy of 12 years.
No process wastewater will be generated from the oper-
ations at the site, This permit is for the discharge
of settled pit water.
COLORADO DEPARTMENT OF ALTH
Water Quality Control Division
Rationale - Page 2
PERMIT NUMBER: CO -0038971
WASTEWATER. CHARACTERISTICS& TREATMENT.
As mining progresses, there will be a need to dewater the pit areas. One
of three discharge points will be used, depending on the particular phase
of mining. Treatment will consist of settling ponds.
The following table summarizes the mining operation. Only one discharge
point will be in use at one time.
Mining
Phase
Associated
Discharge Pt
Operation
Average
Flow
Sediment
Pond Volume
(Thousand Gallons)
I, II
III, IV
V, VI
001
002
003
Dewatering
Dewatering
Dewatering
600-1200 gpm
600-1200 gpm
600-1200 gpm
297.8 MG
245.7 MG
1.94.8 MG
No water quality analyses of the effluent are available at this time since
the mining has not yet begun.
EFFLUENT LIMITATIONS AND BASIS OF LIMITATIONS
Parameter
Flow (MGD)
pH (s.u.)
TSS (mg/1)
Oil and Grease (mg/1)
Salinity
Limitation
NA
6.0 9.0
25(30 -day ave.)
45(Daily Max.)
10
NA
1SES - State Effluent Standards
2
Basis of Limitation
Monitor Only
5E51 and BPT2
BEJ OF BATS
SES
Monitor Only
8PT - Best Practicable Control Technology Currently Available
3BEJ of BAT - Best Engineering Judgment of Best Available Technology
Economically Achievable
The facility is classified as a primary industry in the Mineral Mining &
Processing Point Source Category, Subpart C (Construction Sand & Gravel)
and, as such is subject lortths Federal.Effluent Guidelines for that cate-
gory.
COLORADO DEPARTMENT OF .._ALTH
Water Quality Control Division
Rationale - Page 3
PERMIT NUMBER: CO -0038971
EFFLUENT LIMITATIONS AND BASIS OF LIMITATIONS (Continued)
The status of the categorical guidelines at this time is that BPT has
been promulgated and covers pH only; there are presently no BAT guide-
lines published. Permits written to expire after 7-1-83 must contain
limitations based on BAT. Thus, best engineering judgment was used
to set BAT limits for TSS.
In additional to Federal Guidelines, the State Effluent Limitations
(10.1.4) also apply. This affects the permit with regard to oil and
grease limits. The State Effluent Standard for pH is 6-9 which is
equivalent to BPT.
SPECIAL PERMIT CONDITIONS
Spill Prevention Control and Countermeasure Plan
A Spill Prevention Control..and.CountermeasurePlan is a requirement
of this permit and is detailed on page 6.
2. Salinity
In compliance with the "Regulations for Implementation of the Colo-
rado Salinity Standards Through the NPDES Permit Program", the per-
mittee shall sample for salinity in the wastewater effluent on a
monthly basis until six samples have been analyzed. Thereafter, mon-
itoring shall continue on a quarterly basis. The Division will re-
view the first six months of data and determine if a waiver of numeric
limitations can be granted based on the salt -load to the river being
less than one ton/day (or 350 tons/year). If a waiver is not granted,
then the permittee has an additional six months to submit a report in
accordance with the Salinity Regulations, addressing economic feasa-
bility of salt -removal.
3. One - Time Monitoring
In addition to the ongoing monitoring requirements on page 3, one-
time monitoring for certain additional parameters is required. (See
page 5)
This permit shall expire on March 31, 1987.
Sandy Squire
January 14, 1982
57.17E OF coLcoAOC
DEPARTMENT OF .NATURAL RESOURCES
0. Monte P31COe, Executive Director
MLNED LAND RECLAIIATION
423 Centennial Building. 1313 Sherman Street
Oenver. Colors= 90203 Tel. %303)866-356;
MEMORANDUM
David C. Shelton
Director
DAT.':: December 31, 1981
T0: Garfield County Chairman, P.O. Box 640, Glenwood Springs, Colorado 81602
FROM: James B. McArdle - Reclamation Specialist --Mild,/
Pursuant to the requirement of the Colorado Mined Land Reclamation Act*
to inform counties and certain municipalities of Development and Extraction
Permit applications filed with this office, please !mow that Asphalt
Paving Comnanv has filed to conduct gravel mining
at Sartinn 1(1, T6S. R92W
The applicant proposes to reclaim the site for wildlife habitat . The
deadline for persons to file statements regarding this operation, or to
petition for a hearing before the Mined Land Reclamation Board to consider
the granting of a Permit is set by law; for information please call this
office.
The applicant is obligated to show that the proposed mining and reclamation
plans are in conformance with local zoning ordinances, subdivision regula-
tions, or master plan, and is further required to place a cony of the appli-
cation for public inspection with the Clerk of the county in which the
proposed mine is situated. It is the Board's understanding that the Act
intends for the application to be made available for public review and
comment in an area close to the mine; it is not intended that it be made m
part of public record by recording.
The Board is tentatively scheduled to consider this application on
2/24-25/82
We appreciate your cooperation in this matter and will be happy to answer
any questions.
*Article 32 of Title 34, Colorado Revised Statutes 1973, as amended.
/ep
Rev. 9/30
Gilbert F. Rindahl, P.E.
Ann B. Hodgson
Rindahl & Associates • P.O. Box 24166 • 2180 S. Ivanhoe Street • Denver, CO 80222-0166 • 692-0922
December 11, 1981
Mr. Ted Wing
Armstrong & Associates
861 Rood Ave.
Grand Junction, CO 81501
Re: Town of Silt Water System
Dear Mr. Wing:
We appreciated discussing the design of the Town of Silt domestic water
infiltration system with you this morning. We understand that it is
'your opinion that if the applicant, Asphalt Paving Co., obtains an NPDES
permit for his proposed mining operation such action would address any
concerns you might have about the effects of the proposed operation on
the water system.
If you have any further questions regarding this application, please
don't hesitate to call Rindahl & Associates at 1-692-0922.
Very truly yours,
RINDAHL & ASSOCIATES
Gi t
GFR/ln
cc:
F. Rindahl, P.E.
Chuck Rains
Town of Silt
Bob Lemke
Asphalt Paving
Resource Engineering & Environmental Services
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