HomeMy WebLinkAbout13920 Colorado River Rd - 186113402004INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT
EAGLE COUNTY ENVIRONMENTAL HEALTH DIVISION
P.O. Box 179 - 500 Broadway • Eagle, Colorado 81631
Telephone:328-8755 BP- 10480
YELLOW COPY OF PERMIT MUST BE POSTED AT INSTALLATION SITE. PERMIT NO. 1 5 5 1
Please call for final inspection before covering any portion of installed system.
OWNER: Judith Cook
PHONE: (303) 857-0653
MAILINGADDRESS: 635 S. Grand Ave O;tyFt. Lupton sl,,a: CO ZjP:80621
APPLICANT: Randy Cook PHONE: (303) 857-0653
SYSTEM LOCATION: 13920 Colorado River Rd. TAX PARCEL NUMBER: 1861-134-02-004
LICENSED INSTALLER: Randy Cook LICENSE NO:-1-2-45-- 16-96
DESIGN ENGINEER OF SYSTEM: Tntar—MrninYain FnginParing, Rirbarrl Ricks
INSTALLATION HEREBY GRANTED FOR THE FOLLOWING:
1250 GALLON SEPTIC TANK
ABSORPTION AREA REQUIREMENTS:
SQUARE FEET OF SEEPAGE BED 986 SQUARE FEET OF TRENCH BOTTOM.
SPECIAL REQUIREMENTS: Install as per engineer's design dated4/5/96. Final inspection to be done by
engineer. TCO will not be issued until final certificationis received
ENVIRONMENTAL HEALTH APPROVAL: DATE:
CONDITIONS:
1. ALL INSTALLATIONS MUST COMPLY WITH ALL REQUIREMENTS OF THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS, ADOPTED PURSUANT
TO AUTHORITY GRANTED IN 25- 10- 104. 1973. AS AMENDED.
2. THIS PERMIT IS VALID ONLY FOR CONNECTION TO STRUCTURES WHICH HAVE FULLY COMPLIED WITH COUNTY ZONING AND BUILDING REQUIREMENTS. CONNECTION
TO OR USE WITH ANY DWELLING OR STRUCTURE NOT APPROVED BY THE ZONING AND BUILDING DEPARTMENTS SHALL AUTOMATICALLY BE A VIOLATION OF A
REQUIREMENT OF THE PERMIT AND CAUSE FOR BOTH LEGAL ACTION AND REVOCATION OF THE PERMIT.
3. CHAPTER IV, SECTION 4.03.29 REQUIRES ANY PERSON WHO CONSTRUCTS, ALTERS OR INSTALLS AN INDIVIDUAL SEWAGE DISPOSAL SYSTEM TO BE LICENSED.
FINAL APPROVAL OF SYSTEM: (TO BE COMPLETED BY INSPECTOR):
NO SYSTEM SHALL BE DEEMED TO BE IN COMPLIANCE WITH THE EAGLE COUNTY INDIVIDUAL SEWAGE DISPOSAL SYSTEM REGULATIONS UNTIL THE SYSTEM IS APPROVED
PRIOR TO COVERING ANY PORTION OF THE SYSTEM.
INSTALLED ABSORPTION OR DISPERSAL AREA: 1008 SQUAREFEET. via 28 infiltrator units as per design.
INSTALLED SEPTIC TANK: 1 500 GALLON DEGREES FEETFROM g_eP Sift, plan on fi l a
SEPTIC TANK ACCESS TO WITHIN 8" OF FINAL GRADE AND
PROPER MATERIAL AND ASSEMBLY X YES _ NO
COMPLIANCE WITH COUNTY / STATE REQUIREMENTS: x_ YES _ NO
ANY ITEM CHECKED NO REQUIRES CORRECTION BEFORE FINAL APPROVAL OF SYSTEM IS MADE. ARRANGE A RE -INSPECTION WHEN WORK IS CORRECTED.
COMMENTS:
ENVIRONMENTAL HEALTH APPROVAL: DATE:
ENVIRONMENTAL HEALTH APPROVAL: DATE:
(RE -INSPECTION IF NECESSARY)
RETAIN WITH RECEIPT RECORDS
APPLICANT / AGENT:
PERMIT
PERCOLATION TEST FEE
OWNER:
RECEIPT #
CHECK #
va..i.a ua 11 iz vv 7 27.J 71.1trULUIaal l L,7L7CYC I U IJIUCll L'UU%J £,UV Vllu 7fh 1! CF
(Site Plan MAST be attached)
ISD S Permit
APPLICATION FOR INDIVIDUAL 19EWAGE DISPOSAL SYSTEM PERMIT
ENVIRONMENTAL HEALTH OFFICE - EAGLE COUNTY
P. O. BOX 179
EAGLE. CO -81631
322-8755/927-3023 (El Jebel)
* PERMIT APPLICATION FEE $150.00
* PERCOLATTON TEST FEE $200.00 #
* MAKE 'ALL. REMITTANCE PAYABLE TO: "EAGLE
PROPERTY OWNER: PRONE- 0 3
MAILING ADDRESS: �� o iA w� h � 1=T L(A FIT D o C U
APPLICANT/CONTACT PERSON Rv\da aal�- PHONE:D S -®l05�
MAILING ADDRESS: (® ® e,4.1�1 u E-T. i, tA P-ro C� p ,
LICENSED ISDS CONTRACTOR: Q PHONE:
ADD SS:
dt'�Irkak**k##�kae�Ie�ryM�k#e�kkyF#vFk*#kk#�ck*Sk##***#�eIlrIrirdkkk�if�,ktr,k�,4Irs�akae*yak*wit*kylttyt�4t�li'ie�ltde PERMIT APPLICATION IS FOR: New Installation ( ) Alteration
Repair
LOCATION OF PROPOSED INDIVIDUAL, SEWAGn' DISPOSAL SYSTEM:
Building Permit # (if known)
a
Legal Description: Subdivision:lkwu-� (3 _hw() Filing: -block: Lot No.
Tax Parcel Number: I Y- -� -� o`? -� Lot $ize: (o 63) �L
Strut Address: � � � � l� `o (Z A�INK-
t*�kvk*9r#�k**iE�e�tr rdk�k�ir�k�to4IkIE�rak�rkdekir et*4tAr* 4,4er.,4�rt#dtt�lr*ir*ittaryryt�kyrlttir#1frk�k#�le�k#ekyF �kkkk#
BUILDING TYPE: (Check applicable category)
(Residential/Singile Family Number of Bedrooms
( ) Ros�.dential/Multi-Family* Number- of Bedrooms
(� Commercial/Industrial* Type
—
TYPE OF WATER SUPPLY: (Chec*k applicable category)
((Well ( ) spring ( ) Surface
( ) Public Name of Supplier:
*These sy5te#s :quire esig by/gisterer] ProfessiorsaZ Engineer
ee r
ICNATURE: Date:
kle'141r�k'#�kkylrlklr#rek�rk## #.�r*�*.4�k�-,t*yritti►'ytikr�ryt�taiekyt#y�,kFdrk#*�kt'kkk*desk#�e�rlr*
TO BE COMPLETED BY THE COUNTYREC] lost•-Ir Fax Note 7671 Dara t� � Pa�es
AMOUNT PAID:
CUE( From
Co./Uep�
Co.—
�/�p Phone #
Ahq
Community Development Department
(970) 328-8730
Fax: (970) ;28-7 185
TDD: "9701 328-8797
EAGLE COUNTY, COLORADO
August 27, 1996
Randy and Judith Cook
13920 Colorado River Rd.
Gypsum, CO 81637
RE: Final of ISDS Permit No. 1551-95 Parcel #1861-134-02-004.
Property location: 13920 Colorado River Rd., Gypsum, CO.
Dear Mr. and Mrs. Cook:
Eagle County Building
P.O. Box 179
500 Broadway
Eagle, Colorado 8 1631 -0179
This letter is to inform you that the above referenced ISDS Permit has been inspected and
finalized. Enclosed is a copy to retain for your records. This permit does not indicate compliance
with any other Eagle County requirements. Also enclosed is a brochure regarding the care of
your septic system.
Be aware that later changes to your building may require appropriate alterations of your septic
system.
If you have any questions regarding this permit, please contact the Eagle County Environmental
Health Division at 328-8755.
Sincerely,
Janet Kohl
Environmental Health Department
Eagle County Community Development
ENCL:Information Brochure
Final ISDS Permit
cc: files
Community Development Department
(970)328-8730
Fax:(970) 328-7185
TDD: (970) 328-8797
EAGLE COUNTY, COLORADO
Date: April 15., 1996
TO: R.W. Excavating
FROM: Environmental Health Division
Eagle County Building
P.O. Box 179
500 Broadway
Eagle, Colorado 81631-0179
RE: Issuance of Individual Sewage Disposal System
Permit No. 1551-95. Property Location: 13920
Colorado River Rd., Gypsum, CO. Cook residence.
Enclosed is your ISDS Permit No. 1551-95. It is valid for 120
days. The enclosed copy of the permit must be posted at the
installation site. Any changes in plans or specifications
invalidates the permit unless otherwise approved.
Systems designed by a Registered Professional Engineer must be
certified by the Engineer indicating that the system was
installed as specified. Eagle County does not perform final
inspections on engineer designed systems. Your TCO will not be
issued until our office receives this certification.
Permit specifications are minimum requirements only, and should
be brought to the property owner's attention.
This permit does not indicate conformance with other Eagle County
requirements.
If you have any questions, please feel free to contact the
Environmental Health Division at 328-8755.
cc: files
Inter -Mountain Engineering, Inc.
K
ter-Mountain
Engineering Ltd.
August 26, 1996
Randy Cooke
635 South Grande Ave.
Fort Lupton, CO 80621
RE: .Septic System As -Built Inspection
Lot 4, Eagle River Ranch
13920 Colorado River Road
Eagle, Colorado
Project No. 96-0263G
Dear Randy:
q F- (;
AUG 2 6 1996
On Monday August 19, 1996 a representative of Inter -Mountain Engineering
visited the project site to inspect the installation of the septic system prior to it
being covered. The exposed soils in the infiltration trench consisted of a silty,
gravelly, SAND and were found to be consistent with the soils anticipated in the
Soils and Foundation Report prepared for you dated March 7, 1996.
The system was visually inspected for conformance to the plans and documents.
. Two variances to the plan were noted, the substitution of the 1250 gal. two
compartment septic tank with a larger 1500 gal. two compartment septic tank
and the infiltration field was moved approximately 10' west, further from the -
Domestic well than shown on the plan. The placement of the system was in
substantial compliance with the Septic System Design dated April 5, 1996, by
Inter -Mountain Engineering.
Should you have any questions regarding the information contained in this
report, please feel free to contact the undersigned.
Sincerely,
James Gabriel, EIT
Staff Engineer
�^c Jefflayl
fig' �.Joo 8 4
77 Metcalf Road, #201 • Box 978 • Avon, Colorado 81620 • Phone: 970-949-5072 • From Denver Direct: 893-1531
1420 Vance Street • Lakewood, Colorado 80215 • Phone: 303-232-0158
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EAGLE COUNTY
551 Broadway
Eagle, Colorado 81631
(303) 328 7311
June 23, 1987
Judith R. Hensrud
66450 Hudson Street
Commerce City, Coloardo 80022
Dear Ms. Hensrud,
An inspection of your property on June 15, 1987 revealed that the site
conditions and soil percolation tests indicate your lot is suitable for an
individual sewage disposal system.
You must maintain 100' between septic drainfield and your potable water
supply well, and all neighboring supply wells.
The size of your lot does not conform to current lot sizing regulations
that are enforced in Eagle County. You may need a variance from the lot
sizing requirement. Please contact Mike Mollica of our Community Development
Department for additional information. Mike can be reached.at 328-7311 Monday
through Friday from'8:00 am to 5:00 pm.
If you have any questions regarding this letter or any other matter
please contact me at the County offices.
Sincerely, -
i C�`Z
Erik W. Edeen
copy Susan Vaughn
Mike Mollica.
file
Board of County Commissioners Assessor Clerk and Recorder Sheriff Treasurer
P.O. Box 850 P.O. Box 449 P.O. Box 537 P.O. Box 359 P.O. Box 479
Eagle, Colorado 81631 Eagle, Colorado 81631 Eagle, Colorado 81631 Eagle, Colorado 81631 Eagle, Colorado 81631
AP°T T_CAT' 7o r.._ iL :;r.:;.i;: DTc7:7S:ki. 7cv"T7
PEF.:•!IT :iPPLICATIOS FEE:
NA2IE OF Ot,'tiE,/R:
ADDRESS: l D 7.50
ENVIRO:Z'ENTAL I:EALT11 OFF :CZ - EAGLE COU'.
P.O. 3u:: ,;50
Eagle, Colorado 81631 No.
S150.00 328-7311 PFPCOLMM: TEST
NAME OF APPLICXNT (if different froia owner):
ADDRESS:
DESIG;3 ENGINEER OF SYSTE.`I (if applicable) :
ADDRESS:
Ii1S1ALL:1TI0:1 OF SYSTE.1:
PHONE:
PHONE:
• Licensed Installer (see attached list): YES- NO
ADDRESS:
• PHONE:
PER`IIT APPLICATION IS FOR: (XI New Installation ( ) Alteration ( ) Repair
LOCATION OF PROPOSED I`:DIVIDUAL SE':?,GE DISPOSAL SYST^1
Street/Rural Address:
Lo t S i z e: '/ ��j,- y / r{,��/ /p Air 5 •
Legal Description:
BUILDI;:G OR SERVICE TYPE (check apolicable cate=rv) :
(�Q
Residential - Single Family
( )
Residential - Quadplex
( )
Residential - Duplex
Residential
( )
Co-mmercial (state usace)
- Tr_olex
NUMBER
OF PERSONS:
NUMBER OF BEDROOMS:
WASTE TYPES (check applicable cate^_ories):
( )
Cozrmercial or Institutional
Dwelling
( )
Non -Domestic Wastes
( )
Transient Use
( )
Garbage Disposal
( )
Dishcrasher
Automatic Washer
( )
Spa Tub
( )
Other
TYPE OF
I*TDIVIDUAL SE? -'AGE DISPOSAL SYSTEM PROPOSED:
Septic Tank ( ) Composting Toilet
( )
Incineration Toilet
( )
Vault Privy ( ) Grewater
y'
( )
Chemical Toilet
( )
Pit Privy ( ) Aeration Plant
( )
Rec,c_• l in„ Potable Use
( )
Other
( )
Recycling, Other Use
WILT EFFLUENT BE DISCHARGED DIRECTLY INTO ??AT_'S OF THE
STATE:
YES NO ( )
IS SYSTE`I DESIGNED FOR LESS T'r?3:3 2.000 GALLONS PER DAY: YES NO
WASTE:?ATER FLOW REDUCTION PLA.`I: YES ( ) NO
(IS Yo, ,see attached (Cas.tex Lte•t S.eew .teduCti on me.thcds )
NOTE: The Env,&'Lo;unelLtaL-' Heae_t;t OSS.Lcen matt educe the reocti....d ab.so,Lp.tiojt a,tee, upon
app.tovae oS an adequate cc�;s.t�rat� 6�ccv .`Le(1,U_t(o;t ;J&;t.
SOURCE AND TYPE OF LATER SUPPLY: (�) Well ( ) Spr,ng ( ) Creek/Stream
Give depth of all wells within 200 feet of system:
If supplied by community water, give name of supplier:
SIG?dATURE- - - - - - - - - - - - - - - - - - - - - - - - - - DATE_ - � — �—
D
INFOR,t(ATION BELOW TO BE FILLED OUT BY ENVIROVMENTAL HEALTH OFFICERZ:
GROUND CONDITIONS: Peneent Ground S.eope
Dept, .to Bed'toeh. (pen 8' Pro Ve Hote)
Dep.dt .to Groundxa r'e,% Tabte
SOIL PERCOLATION TEST RESULTS: � c►cutes pet .c;tc�t cn Hot e * I
AtblUtes per knelt .to Hoee #2
pe,L -L LC't to I(o.Ce 03
FINAL DISPOSAL BY:
( ) Aho.-tp.tLo;l Trench, Bed or PZt ( ) Evapo.ttansp.iltati.o;t
( ) Above Gneand D.ispetsa.e ( ) Sand Fittct
( ) Unde,tgtUcutd D.i,spe-isa.0 ( ) Was.tctratct Pond
Amouitt Pa.Ld: ReccLpt Ntonbet
------CV - - - =- - - - - - - - - - - - - - --
NOTE: Site Plan must be attached to'application.
(Env. Health Department - Rev. 4-07-83)
'
EAGLE
COUNTY ENVIRONMENTAL HEALTH
OFFICE >
176 `c2
(Name) .
Date Routed
APP i i cati on--14o
Location
Please rev.i&a
it with this
the attached Individual
completed form to
Setrage Disposal System Permit Application and return
the Environmental Health Office,
PLANNING: Complies with -
YES ''NO
-REVIE'JCD BY
DATE
Subdivis.ion Regulations: ....�..�'..
Zoning Regulations: [/
Recommend Approval:
COMMENTS: '
BUILDING: Complies with - YES ( P10 REVIE'.•!ED BY
Building Permit Applied For:
Building Permit Issued: I
Recommend Approval:
COMMENTS:
ENGINEER: Complies with - YES NO I RE!!IE;lED BY
Roads:
Grading:
Drainage:
Recommend Approval:
COMMENTS:
ENVI ROi 1i 1Ei-1TAL HEALTH:
Complies with - YES NO REVIE14ED BY
Floodplain Permit Necessary:
I.S.D.S. Regs. Compliance:
Recommend Approval:
COi•'MENTS:
DATE
02=
DATE
DATE
l
PERCOLATION TEST
ENVIRONMENTAL HEALTH DEPARTMENT
Eagle County
FEE: $50.00 ISDS APPLICATION NO.� %
OWNER:
LEGAL DESCRIPTION:SZ-zlw S�� lc� T �S ✓�' S �'G
.RURAL_ ADDRESS: /' 7� ��� e_G
TYPE OF DWELLING: NUMBER OF BEDROOMS: 2
DATE OF PERCOLATION TEST: �7TYPE OF SOIL: ✓�`� Ls-��f
TEST HOLES PRE-SOAKED: YES NO
TIME
WATER DEPTH
II INCHES OF FALL
RATE
1
2
E
1
2
3
I 1
2
3
1
2
.
l
` r105.
/
E
/
S�L
L
75
PERCOLATION
RATE:
RECOMMENDED
MINIMUM
SEPTIC TANK SIZE:
C,��� s
RECOMMENDED
MINIMUM
LEACH FIELD SIZE:�(�
c , r� l SQ
RECOMMENDED MINIMUM SQUARE FOOTAGE PER BEDROOM:
SITE HAS BEEN REVIEWED AND TESTED FOR PERCOLATION RATE.
Environmental Health Officer
COMMENTS:
Rev. 5/31/84
uaze
AP?T ICAT'^ FOR
\ PER.MIT .P?i.ICATTM: F"'F
ENVIRO:'IENTAL i.EALTH OFFICE - EAGLE COU:"T;'
P.O. 3o:•. A50
Eagle, Colorzldo 81631
Si ;n nn 328-7 3 l i _-- _-- -
NAME OF 01dNER :
ADDRESS: ��SQ rerC
NA.'IE OF APPLICANT (if different from ourner):
ADDRESS:
DESICN ENGINEER OF SYSTDT (if applicable):
ADDRESS:
PM.E:
PM.E:
INSiA'LL•1TION OF SYSTE`I:
` Licensed Installer (see attached list): YES-
NO
ADDRESS:
-
PHONE:
PER`1IT APPLICATION IS FOR:('\AInstallation
(
)
Alteration ( ) Repair
LOCATION OF PROPOSED INDIVIDUAL_New
SE'?AGE DISPOSAL SYST^-1:
Street/Rural Address:
Lot Size:
5
Legal Description:
BUILDI`<G OR SERVICE TYPE (check applicably cate^_orv):
Residential - Single Family
Residential
(
)
,�`..
Residential - Quadple-m
- Duplex
( ) Residential - Tr_olex
(
)
Commercial (state usage)
NUi1BER OF PERSONS:
NLYBER OF BEDR00_•1S:
WASTE TYPES (check applicable categories):
( ) Commercial or Institutional
Dwellin-
( ) Non -Domestic Wastes
(
)
Transient
Garbage
( ) ge Disposal
Use
�K) Automatic [Dasher
(
)
Dishwasher
( ) Other
(
)
Spa Tub
TYPE OF I*TDIVIDUAL SET. -.AGE DISPOSAL SYST' ! PROPOSED:
Septic Tank ( ) Cor,.posting Toilet
( ) Vault Privy ( ) Greywater
(
)
Incineration Toilet
( ) Pit Privy ( ) Aeration
(
)
Chemical Toilet
Plant . _- _.
( ) Other --
(
)
Rec�;cling, Potable Use
(
)
Recycling, Other Use
WILT. EFFLUENT BE DISC:iARGED DIRECTL`i INTO T.•'ATERS OF THE
IS
STATE:
YES 0 ( )
SYSTE`1 DESIGNED FOR LESS T'dA:v 2,000 GALLONS PER DAY:
YES ( ) \0
14AS T E-T !ATER FLOW RFDUCTTON PT
-ANT:
Vrc
-3iya
:SS3�c0b
:i1'1V31iddV
:SS3b00V
:1'.3iSAS JO bIJ1110
A
-Mountain
iFgineering rta.
SOILS AND FOUNDATION INVESTIGATION
FOR
PROPOSED RESIDENCE
LOT 4, RIVER'S BEND FILING NO. 1
EAGLE COUNTY, COLORADO
PREPARED FOR:
RANDY COOK
PROJECT NO. 95-0656G
MARCH 7, 1996
77 Metcalf Road, #201 • Box 978 • Avon, Colorado 81620 • Phone: 970-949-5072 • From Denver Direct: 893-1531
1420 Vance Street • Lakewood, Colorado 80215 • Phone: 303-232-0158
TABLE OF CONTENTS
EXECUTIVE SUMMARY ............................................... 3
SCOPE............................................................. 3
SITE LOCATION AND DESCRIPTION .................................... 3
SITE INVESTIGATION................................................. 4
SUBSURFACE AND GROUNDWATER CONDITIONS ........................ 4
PROPOSED CONSTRUCTION .......................................... 5
FOUNDATION RECOMMENDATIONS .................................... 5
SLAB CONSTRUCTION ............................................... 6
GROUNDWATER AND DRAIN SYSTEM .................................. 6
REINFORCING....................................................... 7
CRAWL SPACE COVER ............................................... 7
BACKFILL AND SURFACE DRAINAGE ................................... 7
LAWN IRRIGATION ................................................... 8
MISCELLANEOUS.................................................. 8
3
EXECUTIVE SUMMARY
The site is located along the Colorado River Road approximately 14 miles northeast
of Dotsero, Colorado. We understand that a two story residence wood frame residence
is planned.
The subdivision, River's Bend Filing No. 1, is located in the Colorado River Canyon
and appears to consist of some alluvial deposits. Two soil test borings were performed
to help determine foundation design parameters The site has a topsoil 'layer Of
approximately 6 inches irn thickness which is underlai by approximately 6 to .7 feet`6k
redbro' tong t brown , slig�htgrae Iy,silty,4SAN At depths of 6 to 7 feet reddish"
brown, slight y gravelly to very gravelly; SAND was`encountered.
The foundations for at the site may be designed as conventional spread footings
with a bearing pressure of 2000 psf. :
Three percolation test holes were bored on the site to determine the percolation
rates. In the area of the proposed septic field, three percolation tests were performed with
percolation rates ranging from 16 to 35; minutes per inch:
SCOPE
This report presents the results of a Geotechnical Investigation for the proposed
residence to be constructed on Lot 4, River's Bend Filing No. 1, in Eagle County,
Colorado. The investigation was performed by advancing soil test borings, obtaining soil
samples for laboratory testing, performing percolation tests, and presenting our findings
in this report.
The purpose of this foundation exploration is to evaluate the soil for foundation
support, and the engineering characteristics of the foundation materials, and to provide
criteria from a geotechnical perspective, for use by the owner in preparing foundation
design, grading design, and drainage plans.
SITE LOCATION AND DESCRIPTION
The site is an undeveloped lot located described as Lot 4, River Bend Filing No. 1
near Sweetwater, Colorado. The site slopes toward the northeast at gradients which are
estimated to ranged from 5 to 15 percent. The site is bounded by Colorado River Road
A
located to the north, and vacant parcels and unplatted property located to the east, south,
and west. Vegetation on the site consists of sage brush and sparse grass. The ground
surface was partially covered with snow at the time the soil test borings were performed.
SITE INVESTIGATION
The subsurface exploration included a site reconnaissance by an Inter -Mountain
Engineering Personnel and the drilling of three soil test borings to observe the subsurface
soil profile and obtain soil samples for laboratory testing. The soils test borings were
performed by a track mounted CME 45 drill rig to the depths indicated in the Summary of
Test Borings. The test boring locations were established in the field by estimating right
angles and pacing distances from site features. The approximate locations of the test
boring are illustrated on the Site Plan in the Appendix, refer to Drawing No. 1. The
Appendix also contains Summary of Test Borings presenting the information which was
obtained in the subsurface exploration, a key to the terms used in the Summary of Test
Borings, and a brief description of the procedures used.
PERCOLATION RATES
The percolation tests were performed on February 16, 1996 in the vicinity of the
proposed absorption field, refer to site plan. Three 6-inch diameter percolation test holes
were drilled using a 6-inch diameter auger to depths of approximately 30 inches. The
approximate locations for the percolation test holes are shown on the site plan, refer to
Figure No. 1. The test holes were filled with water 24 hours prior to the actual testing to
allow the soils to inundate. The water levels were measured to a relative constant rate.
The percolation rates varied from approximately 16 to 35 minutes per inch.
Although the percolation test holes and profile pits were dug to obtain a reasonable
accurate determination of the absorption field conditions, variations in the subsurface
conditions are also possible. Variations that exist beneath the absorption field may
become evident during the excavation. A representative form our office should observe
I
the completed excavation to confirm that the soils encountered are as indicated by the
soils profile hole.
SUBSURFACE AND GROUNDWATER CONDITIONS
The generalized soil stratigraphy is presented below. The stratum symbols and
solid lines which are used to illustrate the various strata breaks on the Summary of Test
Borings are approximate as the transitions between soil types may occur suddenly or
relatively gradual.
Underlying a topsoil layer of approximately 6 inched in thickness, a reddish brown
to light brown, slightly gravelly, silty, SAND was encountered to depths of 6 to 7 feet. A
depth of.6 to 7 feet in borings B-1 and B-2, respectively, the soils transition to a gravelly
to very gravelly, silty, SAND.
No measurable ground water was present at the time the soil test borings were
completed. No long-term ground water observations were made.
PROPOSED CONSTRUCTION
The project site consists of the construction of a single family residence on the site.
The residence is to be of wood frame construction with concrete slab on grade
construction for the ground floor. We anticipate that the residence will be a two-story
structure with a walk out basement. Foundation wall loading is anticipated to range from
1 to 5 kips per linear foot, and isolated column loading are anticipated to range from
approximately 5 to 25 kips.
6
FOUNDATION RECOMMENDATIONS
Based upon the results of field explorations and the laboratory testing, we
recommend that conventional spread footing foundation system be used. The foundations
may be designed for a bearing pressure of 2,000 psf for footings bearing on undisturbed
silty SAND.
At this pressure, settlements are anticipated to be within tolerable limits for wood
frame construction. The footing excavations should be relatively smooth, free of debris,
organics, loose soil, frost, and standing water. Any over -excavations should be backfilled
and compacted to 100 percent within 2 percent of optimum moisture as determined by a
Standard Proctor Test (ASTM D-698). A representative of this office should be contacted
to inspect the foundation excavation to verify that the soil conditions are the same as those
anticipated in this report.
After all of the final grading is completed, the bottom of the footings should be
covered with a minimum of 48 inches of backfill for frost protection.
Voids left by the removal of cobbles in the bottom of the footing excavation should
be filled with lean concrete or a granular soil with a maximum particle size of 3 inches
compacted to 95 percent of Standard Proctor Density (ASTM D-698), within 2. percent of
optimum moisture.
SLAB CONSTRUCTION
The on -site soils, exclusive of Topsoil and Organics are suitable to support lightly
loaded slab -on -grade construction.
All excavations made for the foundations under proposed slab -on -grade areas must
be properly backfilled with suitable material compacted to a minimum of 95 percent of the
maximum Standard Proctor Density (ASTM D-698). Backfill placed beneath slab -on -grade
floors should be installed at -2 to +2% of optimum moisture content. The on -site soils,
2
exclusive of topsoil and organics are suitable for use as backfill. Before the backfill is
placed, all water and loose debris should be removed from the excavations.
Prior to the construction of concrete floors, the undisturbed subgrade, free from
topsoil and organics, should be proof rolled with a loaded rubber -tired loader or similar
equipment to densify the near surface soils. To reduce the chance of damage to shallow
utilities, special care should be taken in areas where underground utilities are present.
The floor slabs should be appropriately reinforced, and joints should be provided
at the junctions of the slab and the foundation walls, so that independent movement can
occur without causing damage. The slabs should be scored in accordance with the
American Concrete Institute's recommendations to help control cracking.
GROUNDWATER AND DRAIN SYSTEM
While no ground water was reported in the soil test borings at the time the field
investigation was conducted, it is possible that seasonal variations will cause fluctuations,
or for a water table to be present in the upper soils during the spring months, or after
prolonged periods of rain. A foundation perimeter drain as detailed on Figure No. 7 is
recommended to reduce the risk of surface water infiltrating the footing subsoils.
REINFORCING
The foundation should be well reinforced and rigid enough to withstand differential
settlements. Walls retaining earth should be designed to resist an equivalent fluid
pressure of 30 pcf for an "active" case assuming a level drained backfill condition. For "at
rest" conditions such as basement walls, an equivalent fluid pressure value of 50 pcf may
be used for "at rest" conditions.
CRAWL SPACE COVER
When moist soils are encountered in the excavation, the ground surface in crawl
space areas should be covered with an impervious moisture barrier sealed against the
footings. This will help to reduce humidity in the crawl space area.
BACKFILL AND SURFACE DRAINAGE
The foundation soils encountered in portions of the site must be prevented from
being wetted after construction. The backfill placed around the foundation walls should
be methodically compacted to help reduce settlement after completion of construction.
The top one foot of the backfill material must be relatively impervious. The on -site soils,
exclusive of Topsoil and Organics are suitable for use as backfill.
Foundation wall backfill should be moistened or dried to near its optimum moisture
content and compacted to at least 90 percent of the maximum Standard Proctor Density.
Structural backfill should be compacted to at least 95 percent of the maximum dry density
as determined by the Standard Proctor method of test (ASTM D 698).
Surface water running toward the structure from up slope areas should be diverted
around and away from the building by means of lined drainage swales or other similar
measures.
The final grade should have a positive slope away from the foundation walls on all
sides. A minimum of 12 inches in the first 10 feet is recommended. Down spouts and sill
cocks should discharge into splash blocks that extend beyond the limits of the backfill or
a minimum distance of at least 5 feet from the foundation wall. The use of long downspout
extensions in place of splash blocks is advisable.
LAWN IRRIGATION
Do not install sprinkler systems next to foundation walls, porches or patio slabs. If
sprinkler systems are installed, the sprinkler heads be aligned so that the spray from the
heads, under full pressure, does not fall on foundation walls or within five feet of
foundation walls, porches, or patio slabs. Lawn irrigation must be controlled and no
flooding or ponding of water should be performed.
If the future owners desire to plant next to foundation walls, porches or patio slabs,
and are willing to assume the risk of structural damage, etc., then it is advisable to plant
only flowers and shrubbery (no lawn) of varieties that require very little moisture. These
flowers and shrubs should be only hand watered.
MISCELLANEOUS
The recommendations provided herein are based on experience in the area and
from the on -site field exploration. The information obtained from the field exploration and
laboratory testing reflects subsurface conditions only at the specific locations at the
particular times designated. Subsurface conditions at other locations and times may differ
from the conditions at these locations. The extent of any variations between the test pits
may not appear evident until excavation is performed. However, only minor variations are
expected. If during construction conditions appear to be different, this office should be
advised so re-evaluation of the recommendations may be made.
This report has been prepared for the exclusive use of Randy Cook for the specific
application to the proposed residence to be located on Lot 4, River's Bend Filing 1, Eagle
County, Colorado.
10
The findings and recommendations of this report have been prepared in accordance
with locally accepted professional engineering standards for similar conditions at this time.
There is no other warranty, either expressed or implied.
Sincerely,.
INTER -MC
Richard O. F
Geotechnical Engineer
EERING, LTD.
COLORADO RIVER
®PI3�112®PHI
® B#,3
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APPROXIMATE LOCATION OF BORES AND PERC HOLES
PROPOSED RESIDENCE
Lot 4, Rivers Bend, Filing No. I
Eagle County, Colorado
Prepared for. -
Randy Cook
DRAWN BY: J V G SCALE: - I " = 40' °A� 03— 05-96
it
PROJECT NO.: 95-0656.G
DRAWING NO.: I
BORING NO_ 1
DATE DRILLED: 02/15/96
ELEVATION: FIGURE NO.: 1
z
DEPTH
w�
a
IN FEET
-j
N�-
p
DESCRIPTION OF MATERIAL
REMARKS
J
Q
N
w
m .J
}
y
0
To soil
SAND, gravelly, silty, reddish
31/12
brown to light brown.
4
37/12
r
Gravel lense
8
.s
12/12
SAND, silty, slightly gravelly,
red
50/6
Refusal @ 10`. No measurable
groundwater at completion.
12
16
20
24
28
SUMMARY OF TEST BORINGS
nInter-Mountain
Lot 4 Rivers Bend
EngineeringLta.
PROJECT NO.: 95-0656G
BORING NO. 2
DATE DRILLED: 02/15/96
ELEVATION: FIGURE NO.: 2
DEPTH
IN FEET
-j
d
Q
z
wl
C-
N�
3 0
-jw
p
m
r
V)
DESCRIPTION OF MATERIAL
REMARKS
0
Topsoil
50/9
SAND, silty, slightly gravelly,
red to light brown.
4
32/12
Gravells increase @ 6'
8
40/12
50/12
12
50/3
16
34/12
Boring Terminated @ 191.
20
No measurable groundwater at
completion.
24
28
SUMMARY OF TEST BORINGS
Lot 4 Rivers Bend
nInter-Mountain
AEngineeringita.
PROJECT NO.: 95-0656G
BORING NO. 3
DATE DRILLED: 02/15/96
ELEVATION: FIGURE NO.: 3
z
DEPTH
wl
a
IN FEET
-
<n
p
DESCRIPTION OF MATERIAL
REMARKS
Q-jw
m
N
MJ
>-
N
0
-",Topsoil
SAND, silty, slightly gravelly,
light red to red brown
4
8
Boring terminated at 9 feet
12
16
20
24
28
SUMMARY OF TEST BORINGS
nInter-Mountain
Engineeringita.
Lot 4 Rivers Bend
PROJECT NO.: 95-0656G
SWELL -CONSOLIDATION TEST REPORT
2
SWELL
0
COMPRESSION
3
U)
�
1
c
0
N
rn
a
2
a
E
0
U
+'
3
0
0
L
Q)
a
4
5
M
7 1
0.1
CIpse. Nat. Nat. Dry Dens.
Sat. Moist. (pcf)
1.1 49.7 11.4 103.0
TEST RESULTS
....................................................
Water Added
.....................................................
0.5 1 2
Applied Pressure - ksf
LL PI Sp.Gr. Initial void ratio
2.650 0.6057
MATERIAL DESCRIPTION
Silty Sandy GRAVELS
Lt Red
Project No.: 95-0656G
Project: Lot 14 Eagle River Ranch Remarks:
Location: Bore # 1 ® 4.5'
Date: 02-21-96
•
�n Iater-Mounta�
Engizzeeririgr�a.
___ F i g . No. 4
5
_ �rr�r1RT
S)
3
2
SWE
COMPRESS
3
N
C
0
0.1 APP I J eu � •
•
PI Sp.Gr•
pry Dens. 'LL
Nat• (pcf) 2.650
CIP se• MO°st.
q sat. 101.7
• SAND
1.4 12 5 % 3.0
T ST RESULTS
Project
p656G Ranch
9�-Eagle
Project:
Project No.: River
Lot 4.5
• Locat is
project: # 2
PrO� gore
Location:
pate: 02-21.-g6
Date: 2/ 18
nlritcr Mourita.
�En��`eeri ng
Figure No. 6
Initial
0.6264
Mi----ESCRIPTI
ATERIALC
d Silty San / sml. an
Red
Remorks:
Foundation Wall
Backfill moistened
and well compacted
Polyethelene Moisture
Barrier glued to foundation
wall
0
Geotextile
(Mirafi 140N or
c equivilant)
Minimum of 6" of
3/4 inch gravel
4" diameter perforated rigid
pipe sloped a minimum of 1/8"
per foot to sewer lateral subdrain,
sump pump or daylighted.
DETAILS OF:PERIPHERAL DRAIN SYSTEM
FOR FOOTING TYPE FOUNDATION
FIGURE
Ex-:g�x�eerzngua.
OJECT: PROPOSED RESIDENCE
-LOT 4, RIVER'S BEND FILING NO. 1
EAGLE COUNTY, COLORADO
OJECT NO.: 95-0656G FIGURE NO. 7
Percolation Test Data
Project 95-0656G
Locatio Lot 4 Rivers Bend Filing
Test Hole #:
#1
#2
#3
•
FAZE tter Mountain
EnaineevinamL
Time Interval
Measurement
Drop in H2O
Perk -Rate
[Min]
[Feet] [Inches]
[Inches]
[Minh]
9:42
0
1 10 1/16
Water Added
9:57
15
1 11 1/16
-1
10:12
15
1 11 5/8
- 9/16
10:15
0
1 9 1/2
Water Added
10:30
15
1 10 1/2
-1
10:45
15
1 10 7/8
- 3/8
10:48
0
1 9 3/8
Water Added
11:03
15
1 10 5/16
- 15/16
16.00
Time Interval
Measurement
Drop in H2O
Perk -Rate
[Min]
[Feet] [Inches]
[Inches]
[Minh]
9:42
0
1 4 1/2
Water Added
9:57
15
1 6 5/8
-2 1 /8
10:12
15
1 8 3/16
-1 9/16
10:15
0
1 4 7116
Water Added
10:30
15
1 8 3/8
-315/16
10:45
15
1 8 3/4
- 3/8
10:50
0
1 6 3/8
Water Added
11:05
15
1 713/16
-1 7/16
11:20
15
1 8 9/16
- 3/4
11:31
0
1 3 15/16
Water Added
11:46
15
1 613/16
-2 718
11:51
15
1 7 1/4
- 7/16
34.29
Time Interval
Measurement
Drop in H2O
Perk -Rate
[Min]
[Feet] [Inches]
[Inches]
[Minfin]
9:47
0
1 9 3/8
Water Added
10:02
15
1 9 5/8
- 1/4
10:17
15
1 10 118
- 1/2
10:32
15
1 10 5/16
- 3/16
10:35
0
1 8 7/16
Water Added
10:50
15
1 8 7/8
- 7/16
11:05
0
1 9 3/16
Water Added
11:20
15
1 9 318
- 3/16
11:35
15
1 10 5/8
-1 114
11:36
0
1 6 114
Water Added
11:51
15
1 6 3/4
1/2
30.00
DESIGN PERCOLATION RATE = 30 Minrnch l
�1
PERC656.XLS
1551-95 Tax#1861-134-02-004
JOB NAME 13920 Colorado River Rd.
River's Bend F1, LCIT4
JOB NO. f doU
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