HomeMy WebLinkAbout301 Stephens Dr - 211305206004INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT
EAGLE COUNTY ENVIRONMENTAL HEALTH DEPARTMENT
Telephone: (970) 328-8755
P.O. Box 179 - 500 Broadway, Eagle, CO 81631
COPY OF PERMIT MUST BE POSTED AT INSTALLATION SITE.
PERMIT# IS-2633-07
BUILDING PERMIT# BP-18553
OWNER: ERIC SCHALLER
PHONE: 970-209-3130
MAILING ADDRESS: 0102 COLORADO RIVER RD. GYPSUM, CO 81637
APPLICANT: SAA
PHONE: SAA
SYSTEM LOCATION: 301 STEPHENS DRIVE, DOTSERO
TAX PARCEL NO. 211305206004
LICENSED INSTALLER: ERIC SCHALLER
LICENSE NO. 71-07
PHONE: 970-209-3130
DESIGN ENGINEER: HP GEOTECH
PHONE: 970-468-1989
SYSTEM SIZED TO ACCOMODATE A 3 BEDROOM RESIDENCE:
INSTALLATION GRANTED FOR THE FOLLOWING: 1250 GALLON, TWO CHAMBER FRONT RANGE PRECAST SEPTIC TANK, 938
SQUARE FEET OF ABSORPTION AREA CREDIT VIA 48 INFILTRATOR QUICK 4 STANDARD CHAMBERS.
SPECIAL INSTRUCTIONS:
INSTALL EXACTLY AS DEPICTED ON ENGINEER'S REVISED DESIGN STAMPED, SIGNED AND DATED SEPTEMBER
13, 2007.
• DO NOT INSTALL IN WET WEATHER
• MAINTAIN SHALLOW COVER ON ABSORPTION AREA OF ON -SITE BACKFILL SOIL
• CALL EAGLE COUNTY AND THE DESIGN ENGINEER FOR FINAL INSPECTION PRIOR TO BACK -FILLING ANY
PORTION OF THE INSTALLATION OR WITH ANY QUESTIONS.
• BUILDING OCCUPANCY WILL NOT BE ALLOWED UNTIL THE SEPTIC SYSTEM HAS BEEN INSPECTED,
APPROVED AND OPERATIONAL.
ENVIRONMENTAL HEALTH APPROVAL:
DATE:
9/13/07
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 WILL RESULT IN
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: 938 SQUARE FEET ( VIA 48 0-4 INFILTRATOR CHAMBERS)
INSTALLED 1250 GALLON 2 COMPARTMENT CONCRETE SEPTIC TANK LOCATED AS SHOWN ON THE
ENGINEER AS -BUILT. JOB # 407 0257 FROM HP GEOTECH
COMMENTS:
ANY ITEM NOT MEETING REQUIREMENTS WILL BE CORRECTED BEFORE FINAL APPROVAL OF SYSTEM IS MADE. ARRANGE A
RE -INSPECTION WHEN WORK IS COMPLETED.
ENVIRONME
'NIAL-IfEALTH APPROVAL:
DATE: 3/21/08
INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT
EAGLE COUNTY ENVIRONMENTAL HEALTH DEPARTMENT
Telephone: (970) 328-8755
P.O. Box 179 - 500 Broadway, Eagle, CO 81631
COPY OF PERMIT MUST BE POSTED AT INSTALLATION SITE.
PERMIT# IS-2633-07
BUILDING PERMIT# BP-18553
OWNER: ERIC SCHALLER
PHONE: 970-209-3130
MAILING ADDRESS: 0102 COLORADO RIVER RD. GYPSUM, CO 81637
APPLICANT: SAA
PHONE: SAA
SYSTEM LOCATION: 301 STEPHENS DRIVE, DOTSERO
TAX PARCEL NO. 211305206004
LICENSED INSTALLER: ERIC SCHALLER
LICENSE NO. 71-07
PHONE: 970-209-3130
DESIGN ENGINEER: HP GEOTECH
PHONE: 970-468-1989
SYSTEM SIZED TO ACCOMODATE A 3 BEDROOM RESIDENCE:
INSTALLATION GRANTED FOR THE FOLLOWING: 1250 GALLON, TWO CHAMBER FRONT RANGE PRECAST SEPTIC TANK, 938
SQUARE FEET OF ABSORPTION AREA CREDIT VIA 48 INFILTRATOR QUICK 4 STANDARD CHAMBERS.
SPECIAL INSTRUCTIONS:
INSTALL EXACTLY AS DEPICTED ON ENGINEER'S REVISED DESIGN STAMPED, SIGNED AND DATED SEPTEMBER
13, 2007.
• DO NOT INSTALL IN WET WEATHER
• MAINTAIN SHALLOW COVER ON ABSORPTION AREA OF ON -SITE BACKFILL SOIL
• CALL EAGLE COUNTY AND THE DESIGN ENGINEER FOR FINAL INSPECTION PRIOR TO BACK -FILLING ANY
PORTION OF THE INSTALLATION OR WITH ANY QUESTIONS.
• BUILDING OCCUPANCY WILL NOT BE ALLOWED UNTIL THE SEPTIC SYSTEM HAS BEEN INSPECTED,
APPROVED AND OPERATIONAL.
ENVIRONMENTAL HEALTH APPROVAL:
DATE:
9/13/07
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 WILL RESULT IN
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: SQUARE FEET (VIA_)
INSTALLED GALLON SEPTIC TANK LOCATED DEGREES AND FEET INCHES FROM
COMMENTS:
ANYITEMNOT MEETING REQUIREMENTS WILL BE CORRECTED BEFORE FINAL APPROVAL OFSYSTEMIS MADE. ARRANGEA
RE -INSPECTION WREN WORK IS COMPLETED.
ENVIRONMENTAL HEALTH APPROVAL:
DATE:
Department of
Environmental Health
Eagle (970) 328-8755
Fax: (970) 328-8788
El 3ebel (970) 704-2700
TOLL FREE: 800-225-6136
EAGLE COUNTY
P.O. Box 179
500 Broadway
Eagle, CO 81631
www.eaglecounty.us
APPLICATION FOR INDIVIDUAL SEWAGE DISPOSAL SYSTEM PERMIT
ISDS Permit # .3 _ Building Permit # 6P-/ 9S.S3
INCOMPLETE APPLICATIONS WILL NOT BE ACCEPTED (SITE PLAN MUST BE INCLUDED)
FEE SCHEDULE
APPLICATION FEE $3SO.00
This fee includes the ISDS Permit, Site Evaluation (Percolation Test, or Soil Profile Observation) and
Final Inspection. Additional fees may be charged if a re -inspection is necessary, or a pre -construction
site visit or consultation is needed. The re -inspection fee is $55.00. The pre -construction site visit fee
is $85.00. Make all remittance payable to: Eagle County Treasurer.
Property Owner: �ri� Sct,-lta.<
Phone: g170 - Z0q_3j3ZA
Mailing Address: 0102 601 a ra d v A•1r y2d I1y Os gi(o3 s
Applicant/Contact Person: Fri` SaL,-r-lltee- Phone: 970- Zv9-3?.3 0
Er i c_ S V%C:.l ter -
Licensed Systems Contractor: ��� License #
Company/DBA: Phone: 9171) _Z-,ocf._ 3 >30
Mailing Address: � (a ti�sr.Xf, . C3-
Permit Application is for: 75Z New Installation C Alteration r Repair
Location of Proposed Individual Sewage Disposal System:
Legal Description: !-®I 5, IocCEea i„ +C-CCts �z,ya� 449. S--flc,-nS 5-d61 i 5
Tax Parcel Number: Z )13 0 S Z O 1, 00 Lot Size: Z,, 2-1 L9 &Lrts
Assessor's Link: www.eaglecounty.us/patie/
Physical Address: :301 S e_pl,cns b( Ire IPSL%4" M $jfv3`7-
Building Type: R Residential/Single Family Number of Bedrooms:
F- Residential/Multi Family Number of Bedrooms:
F- Commercial/Industrial* Type of Use:
*These systems require design by a Registered Professional Engineer
Type of Water Supply: r Private Well r Spring r Surface %Public
If Public Name of Supplier :
Applicant Signature :
Office Use Only
Amount Paid: S Receipt#: - " ; c 65 Check#: 5 3 Date: .
DEPARTMENT OF
ENVIRONMENTAL HEALTH
(970) 328-8755
FAX: (970) 328-8788
TOLL FREE:800-225-6136
www.eagle-county.com
EAGLE COUNTY
March 21, 2008
Eric Schaller
0102 Colorado River Rd.
Gypsum, CO 81637
RAYMOND P. MERRY, REHS
Director
RE: Final approval of Individual Sewage Disposal System ISDS Permit #2633-07;
Tax parcel #211305206004; Property location: 301 Stephens Drive
Dear Eric,
This letter is to inform you that the above -referenced ISDS Permit has been inspected and finalized.
Your septic system has been sized to accommodate 3 bedrooms. Enclosed is a copy to retain for
your records along with a brochure regarding the care of your septic system. Additional information
about the maintenance of your septic system as well as information about private wells can be
accessed through web site links provided on the Environmental Health Department's home page at
http://www.eaglecouply.us/envHealth/
Be aware that changes in the use of your property or alterations of your building may require
commensurate changes to, or relocation of, your septic system. Landscape features, trees with
tap roots, irrigation systems and parking areas above the drain field can cause premature
system failure. It is equally important that you notice and immediately repair dripping faucets
and hissing toilets as this will certainly cause the system to fail. By following a few simple
guidelines, like avoiding grease or other additives down the drain and making sure your septic
tank is on a pumping schedule, your system has been designed to last for many years.
If you have any questions regarding this information, please contact us at (970) 328-8755.
Sincerely,
Terri Vroman
Administrative Technician IV
cc: ISDS permit folder
Eagle County Building Department
Chrono efile
Encl: Final ISDS Permit
Informative materials
OLD COURTHOUSE BUILDING, 551 Broadway, P.O. Box 179, Eagle, Colorado 81631-0179
DEPARTMENT OF
ENVIRONMENTAL HEALTH
(970)328-8755
FAX: (970) 328-8788
TOLL FREE: 800-225-6136
www.eaglecounty.us
9/14/07
Eric Schaller
0102 Colorado River Rd
Gypsum, CO 81637
RAYMOND P. MERRY, REHS
Director
RE: Issuance of Individual Sewage Disposal System (ISDS) Permit #2633-07
Tax Parcel #211305206004; Property Location: 301 Stephens Drive, Dotsero
Dear Eric,
Please find enclosed ISDS permit, number #2633-07 to conduct the construction exactly as indicated on the permit. It
remains valid for 120 days or for the duration of a current building permit. The enclosed copy of the permit must be
posted at the installation site. Any changes in plans or specifications must be pre -approved by this department. If you
are receiving this permit and have not been contracted to perform the installation, please contact us immediately.
Also enclosed is a final inspection completeness check list to assist you in making sure all of the detailed points of an
inspection have been properly addressed before calling for your final inspection. It is important to pay close attention
to the special conditions which may have been included to address site specific issues. All components of the system
must be exposed for our inspection. Projects that require multiple inspections will be assessed a re -inspection fee of
$55.00 payable before or at the time of inspection. It is extremely important to remember to rake all infiltrative
surfaces and avoid installing systems in wet or frozen ground.
In addition to avoiding installations during unfavorable site conditions, please be advised of our annual time frame for
ISDS installations, unless otherwise specifically approved by this department. Permits issued on or before November
15 must be installed prior to December 1. Spring field activities typically resume around mid March. Avoiding the
winter months promotes better site evaluations, designs and installations resulting in the best private wastewater system
for our customers. If unfavorable conditions prevail between the installation and the final inspection (such as snow)
special precautions must be taken to protect the drain field area from the elements.
Please keep this office informed regarding the progress of your installation so we can provide responsive customer
service when scheduling your final inspection. The Temporary Occupancy Permit (TCO) associated with the building
permit cannot be issued without the septic system being finally inspected. Systems designed by a registered
professional engineer must be inspected and certified by the design engineer as well as Eagle County Environmental
Health.
If you have any questions, please feel free to contact us at (970) 328-8753.
Sincerely,
Lauren Brinker, Environmental Health Specialist
Enclosures: ISDS Permit #2633-07
Final Inspection Completeness
'of
G WIN* 4 tech
HEPWORTH - PAWLAK GEOTECHNICAL
January 24, 2008
Hepworth-Pawlak Geotechnical, Inc.
P. O. Drawer 1887
Silverthome, Colorado 80498
Phone:970-468-1989
Fax: 970-468-5891
email: hpgeo4Qhpgeotech.com
Eric Shatter
BAR 1® 2008,
301 Stephans Drive r-
Gypsum, CO 81637 r
Job No 467-;6 li i t ::NT
Subject: As -Built Evaluation of Individual Sewage Disposal System, Existing Residence,
Lot 5, Two Rivers Estates, Eagle County, Colorado.
Dear Eric:
Hepworth-Pawlak Geotechnical, Inc. has observed the installation of the Individual Sewage
Disposal System (ISDS) for the three bedroom residence on the project site. The ISDS
components observed include: septic tank, sewer pipe, effluent pipe, cleanouts, manifold pipes,
distribution lateral pipes, Infiltrator chambers, inspection ports and the locations of all
components. We did not observe the installation of the lined retaining walls at the site.
We observed the installation of the ISDS on November 28, 2007. Our ISDS design specified four
rows of 12 chambers connected in a continuous serial distribution network. The system was
constructed with 11 chambers in the first three rows and 15 chambers in the fourth row. Also, the
serial distribution network was broken up into two separate serial distribution rows with two
trenches in each row rather then a continuous network of four trenches. It is our opinion that the
variation in trench length and the change in the serial distribution network should not alter the
effectiveness of the ISDS. The ISDS layout changes and locations of components are shown on
the ISDS As -Built Site Plan, which is provided as Figure 1. Except for the changes noted above,
the ISDS was constructed in accordance with our design dated September 13, 2007, Job No.
407 0257.
Sincerely,
HEPWORTH - PAWLAK GEOTECHNICAL, INC.
aQftie��
Jason A. Deem 0. R
Project Geologist ®' J.
Reviewed by: o 28161
�®
Ronald J. Uhle, P.E., C.C.E.
Associate ``°.,`P�NAL
Attachment: Figure 1— ISDS As -Built Site Plan
Glenwood Springs 970-945-7988 0 Parker 303-841-7119 9 Colorado Springs 719-633-5562
EAGLE COUNTY
ISDS PERMIT # a(- 3 3-U7
B UILDING PERMIT #
SOILS EVALUATION/PERCOLATION TEST
EAGLE COUNTY ENVIRONMENTAL HEALTH
OWNER: � Ad C, �s0-1
PHSYSICAL ADDRESS: Zp ( St-0 U,,, T)l .
SUBDIVISION: Ki Ve S eS LOT NO.: Jc-
TYPE OF STRUCTURE: S r NUMBER OF BEDROOMS: [�
TEST HOLES PRE-SOAKED: U YES U NO
TIME
WATER DEPTH
INCHES OF FALL
RATE
SOIL
PROFILE
0'
xx
1'
2'
3'
4'
5'
6'
7'
8'
9'
10'
TIME TO DROP LAST INCH: PERC RATE:
MINIMUM LEACH FIELD SIZE: MINIMUM SEPTIC TANK SIZE: -
WATER SUPPLY: ❑ PUBLIC
WELL LOCATION:
OTHER WATER FEATURES:
® PRIVATE
ENVIRONMENTAL HEALTH SPECIALIST DATE
' P
t1 i'v,xih P'ar I ik€?emechraizxl, Inc,
a i31a� it'7 t1c,z �x�aa tf =1<l
HEPWOR11-1-1'AWL K GEMECHNICAL hm 1,770„ 468 5891 j
caati1: lsi•�vEs 1ri�f;�5s��c-t�-c:k5.ct:r�
September 13, 2007
Eric Schaller
301 Stephens Drive
Gypsum, CO 81637
JobNo. 407 0257 }
Subject: Revised Individual Selvage Disposal System Design, Proposed Residence, Lot 5,
Two Rivers Estates, Eagle County, Colorado
Dear Erie:
'i
As requested, Hepworth-Pawlak Geotechnical, Inc. has redesigned an Individual Sewage Disposal
System (ISDS) based on the Long Term Acceptance Rate (LIAR) of the subsoils for the
proposed residence located at 501 Stephens Drive in Eagle County, Colorado. The revisions were
completed at your request to reduce the number of bedrooms in the original design dated August
27, 2007 front .four to three and at the request of Eagle County to revise the layout of the system.
The study was conducted in accordance with our written agreement to you dated August 2, 2007.
The data obtained and our ISDS revised design recommendations based on the proposed
construction and subsurface conditions' encountered are presented in this report.
Site Conditions: The project site slopes moderately (town to the south, The site is 2.216 acres in
size. Water service will be provided to the proposed three bedroom residence by a iiiunicipal
water supply system. The proposed residence will be a single story wood frame building
constructed over a walkout basement. We assume that the lower level floors will be
slab -on -grade.
Percolation Testing: Percolation tests were conducted on June 22, 2007 by our Glenwood
Springs Office to evaluate the percolation rate of the natural soils at the site. The average soil
percolation rate is 14 minutes per uiclr; which corresponds to a long term acceptance rate (LIAR)
of 0.72 gallons per square foot per day. The LTAR -vas used to size the ISDS absorption area. A
copy of the Percolation Testing Report dated July 12, 2007 (Job No. 107 0296) has been included
as an attachment.
I
Gjlerrwood Springs 970-94.54988 Parer :303-841-7119 (,olorado Sprixn s 71.96.3.3 55%;'
Eric Schaller
September 13, 2007
Page 2
ISDS Analysis: Based on the subsurface conditions encountered and the LIAR, the tested area is
suitable for an ISDS utilizing the shallow soilsfor the treatment and dispersal of effluent. A site
plan showing the proposed ISDS, proposed residence and the minimum horizontal setback -
distances of site features relative to the ISDS components is shown on Figure 1. The ISDS was
designed for a total of three bedrooms. All materials and installation should meet the
requirements of the current Eagle County Individual Sewage ;Disposal System Regulations.
Septic and Dosing Tanks: A concrete 1,250 gallon, two chamber Front Range Precast septic
tank, or equivalent, will be used for primary treatment' of sewage from the residence'. A copy of
the Front Range Precast septic tank detail has been provided as an attachment. Ali effluent Ater
will be installed on the outlet of the second chamber of the septic tank. Sewage will gravity feed
from the proposed residence to the septic tank and effluent will be gravity fed to the absorption
area.
3
If the septic tank'access riser lids will be installed at grade, with no backfill cover, then the lids
should be insulated with foam insulation board', to provide frost protection. The sewer pipe inlet
tee in the first chamber of the septic tank should be installed beneath the access lid of the first
chamber of the septic tank so that it call be reached for service should it become clogged. The
PVC handle on the effluent filter should be extended up.to within reach of the dose tank access
riser lid. This will allow for easy access and maintenance of the filter. Approximately 2 feet of
sail backfill cover should be placed over the tops of the septic tank to'allow 'for easy access .and
frost protection, For maintenance reasons deep tank installations should be avoided and we.
should be contacted to evaluate this ISDS design should it appear that a deep tank installation
involving more than 4 feet of backfill soil over the top of the septic dose tank will be required.
j;
Sewer and Effluent Piping: The sewer litre from the proposed residence to the septic tank
should not be less than the diameter of the building drain and not less than 4 inches in diameter
and will service all levels of the proposed residence. Soil backfill beneath the sewer pipe must be
adequately bedded and compacted to prevent settlement of the pipe. The sewer pipe should be
installed in landscape areas %with at least 2 feet of soil backfill covering the pipe, or the pipe
should be insulated on the top and sides with 2 inch thick rigid foam insulation board for frost
protection. Beneath driven surfaces, we recommend that Schedule 40 PVC sewer pipe be used
and the pipe be insulated' if it will be installed with less than 4 feet of backfi ll'soil cover.
Job No. 4070257
Ge"'LlteCi't
September 13, 2
Page 3
We recommend
tank, though thi<
from 5 Beet outsi
10 feet of sever'
and 2%. Cleano
foundation, adja
more and at leas
sewer or effluent
installed bet-weei
90
ption Area: The soil
,tion. trenches consistin
tion area calculations
tion area per Eagle Co
d to the apprix
Tile -L e on -site soils can be i
,hedute 40 PVC pipe between the proposed residence and the septic
red by local regulations. The portion of the sewer pipe extending
ing. foundation should have a slope of at least 2% except for the. last
iately preceding the septic tank which should be sloped between I%
w
.ould be installed in the seer line adjacent from the building
,let of the septic tank, where the sewer pipe bends at 90 degrees or
at should be installedatleast every 100 linear feet ofilon-pressurized
Jiout its length. We recommend that a straight section of pipe be
ce t6lindation and the septic tank. Any required 90 degree bends in
omplislied through the use of a series of 45 degree smooth elbows or
1p prevent clogging of the pipe.
absorption area is designed to be 480 square feet and will have -four
g of fort y-eight (48) Infiltrator Quick 4 Standard clianibers, The
are presented in Figu
re 2. Each chamber was given 10 sq
uare -feet of
unty regulations. Each, trench will be 12 chambers long. The
a serial distributionnetwork. The absorption trenches .should be
depths shown on Figures 4 and 6. Care must be taken during
soils exposed in the bottom and sidewalls of the trench excavations
trench excavations are complete, the trenches should be left open, if
:o air dry prior to Placement of the Infiltrator chambers and
soils have air dried, if necessary, the bottom and sideWalls of the
-d prior to placement of the chambers and piping.
as backfill over the chambers and should be graded to deflect surface
fi-oni the absorption area. We recommend the soil backfill be re -
with a mountain meadow grass inix or suitable equivalent. It is
Dgetation or vegetation with invasive roots in and around the
absorption area and manifold piping as the roots may damage piping.
Combination air vent/inspection ports should be installed at each end oftheabsorption trenches.
The ports should be constructed of 4 inch diameter PVC pipe installed into the knockouts
provided on the tops of the Infiltrator chambers. The ports should extend a minimum of 8 inches
Job No. 407 0257
Eric Schaller
September 13, 2007
Page 4
above the ground surface and should have ventilated removable caps.', Eagle County requires that
the vent boles of the inspection ports be covered with #I6 fly-tite screen. The absorption area
manifold and distribution piping layoutand serial trench connections are shown on Figures 3 and
5,'respectively.
It is our understanding that you plan to build two terraced boulder retaining walls up to 4 feet high
between the absorption trenches and the property boundary. Eagle County regulations require
that an ISDS absorption area maintain a minimum of a 41+IV setback from retaining walls or cut
slopes over 20%.' Due to the.minimuni space available in the absorption area, the boulder walls
must be lined to decrease this required setback. A cross section showing a lined boulder wall
detail has been provided' as Figure 6. All materials used and installatiou.niethods should meet the
requirements of the current Eagle County Land Use Regulations for Individual Sewage Disposal
Systems.
Subsurface Drainage: No free water was encountered in -the -profile pit when observed on June
21, 2007 and itis our olinion that a subsu.rface'drain;vial notbe required. Iffree water is
encountered in any excavations on the site we should be notified to re-evaluate the need for a
subsurfaec drain to protect the absorption area.
ISDS Maintenance; The on -site ISDS will require maintenance. The level of maintenance will
vary with the complexity of the system and water use Habits of the users. We recommend that
i
fats, oils, bath oils, greases, paint, solids, water softener backwash solution, water from hot tubs
and other constituents that can clog and foul collection. and disposal equipment are not disposed
of in the residence drains. The absorption area and any areas directly up gradient of it should not
be watered by IaNvn irrigation systems or other means as the soils may become hydraulically'
overloaded. Septic tanks and other treatment tanks should be pumped whenever the sludge
occupies 1/3 of the liquid capacity of the first chamber of the septic tank. Ill addition, the effluent
filter should be checked for clogging at least office per year and cleaned as necessary. We
recommend that an operation and maintenance manual be developed for the ISDS. The ISDS
should be operated and maintained as stipulated in the manual. If you desire our services, we can
prepare the operation and maintenance manual for the orrsite ISDS.
Jot? No, 407 0257
GectPc�h
Eric Schaller
September 13, 2007
Page 5
Limitations. This design has been conducted in accordance with generally accepted engineering
principles and practices in this area at this time We nuke no warranty either express or implied.
The conclusionsand recommendations submitted in this report are based upon the data obtained
from the profile pit and percolation test holes excavated at the; approximate locations'! indicated on
f
Figure 1 and to the depths shown in the attached Percolation Testing Report, the proposed tvpe of
construction, and our experience in the area. Our findings include interpolation and extrapolation
of the subsurface conditions identified at the profile pit and percolation test holes and variations in
the subsurface conditions may not become evident until excavation is performed. If conditions
encountered during constructionappear different from those described in this report, we should be
notified at once so re-evaluation of the recommendations may be made.
Based on site reconnaissance, it is our opinion that the designed location of the ISDS'' does not
violate any setback requirements of the current Eagle County Environmental Health Department's
ISDS regulations. We recommend that the position of the ISDS components, proposed residence;
proposed water well and setback requirements be verified in the field by a Professional Land
Surveyor licensed in the State of Colorado.
i
Thus report has been prepared for the exclusive use by our client for the ISDS design submittal
process. We are not responsible for technical interpretations by others of our information. As the
project evolves, we should provide continued consultation and field services during ISDS
construction to review and monitor the implementation of our recommendations, and to verify
that the recommendations have been appropriately interpreted. We recommend on -site
observation of the absorption area excavation; gravel placement, pipe and tank installation, mid
soil backfill placement by a representative of the geoteclurical engineer. On -site observations of
the ISDS installation or other out of scope services will be provided foi- an additional cost.
Eagle County requires that an As -Built evaluation of engineered ISDS designs be performed by
the ISDS engineer. We should be contacted to perform the ISDS As -Built evaluation: the day
before you are ready for the evaluation. Prior to evahiation, all ISDS components should be
installed including: sewer pipe, effluent pipe, septic and dosing tanks, effluent filter, inlet and
outlet tees, pump or automatic siphon, absorption area and Infiltrator chambers. No components
of the ISDS should be backfilled prior to our performing the ISDS As -built evaluation.
Job No. 407 0257
Gee- 9tech
Associate
Attachments: Figures 1 through S
Front Range Precast 1
July 12,'2007 Percolat
IDS ABSORPTION AREA CALCULATIONS
j
rr
0
Cc U
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FIGURE 5
HEPWORTH•PAWLAKGEOTECHNICAL TYPICAL ABSORPTION TRENCH CONNECTION=
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ELEV. M 6293'
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-200=49
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LEGEND:
TOPSOIL; sandy silt with scattered shale fragments, soft, slightly moist, brown, root zone.
SANDY (SM-SQ; very silty, clayey, scattered shale fragments, medium dense, slightly moist, brown,
2" Diameter hand driven liner sample.
i Disturbed bulk sample.
NOTES:
1. The exploratory pit was excavated on June 21, 2007 with a small trackhoe.
2. The location of exploratory pit was measured by pacing from features shown on the site plan provided.
3, The exploratory pit elevation was approximated from contours shown on the site plan provided, Log of exploratory pit
is drawn to depth.
4. The exploratory pit location and elevation should be considered accurate only to the degree implied by the method
used.
5. The lines between materials shown on the exploratory pit log represent the approximate boundaries between material
types and transitions may be gradual.
6. No free water was encountered in the pit at the time of excavating. Fluctuation in water level may with
occur time.
7. Laboratory Testing Results:
+4 = Percent retained on the No 4 sieve
-200 = Percent passing No. 200 sieve
1070-996
G&Me��h0Ta
LOG OF PROFILE PIT Figure 2
HEPW0MH-PAWLAK GZCHNIGAL
2ti Hti'd H3�310-J-dH:woa-:I 6s:60 L002-0e--nr
HEPWORTH-PAWLAK GEOTECHNICAL, INC.
TABLE 1
PERCOLATION TEST: RESULTS
JQB NO. 107 "0296
HALE DEP?H IENGTH' OFWATER
(INCHES.) INTERVAL
DEPTHWATER
DEPTI i
pRpP IN AVERAGE
(MIN)
AT START OF
INTERVAL
AT END OF
INTERVAL(IT
WATER LEVEL PE�RCOLAT ON
CHES) RATE
FHOLE
(INCHES)
(INCHES)
(MINdINCH)
123/4 15
13/4
33/4
2
2
1/2
11/2
Water added
41/4
2 7/8
13/g
2 718
13'4
1 1/8
Water added
13/4
3/4
1
2 V2
11/7
1
1 V2
1/2'
1 15 I
P-2 163/4 15
6'/2
33/4
23/
3314
1 7/8
17/8
Water added
1 7/8'
3/a
1 1J8
5 f1/4
33/1
11/2
3314
2 3/8
13 J8
2 3/8'
11/4'
1 1/8
11/4
1/4
1
Water added
3$/4
2th
11/a 13
P-3 221/a IS
43/4
3
13/4
3
13/4
11/4
13/4
1 '.:
3/4'
Water added
73/4
6
13/4
b
4318
1 5/8
4 3/8
3 1/8''
1'14
3 1/8
2118
1
21/8
1 1/8
1 14 3
P-4 461/2 15
33/4
13/4
2
13/4
'A
1 Y2,'.
Water added
4
23/4
1 %4
23/4
1 7/8
7/8
1718
3/a
11/8
Water added;
4 3/8
31/4
1 1/8',
3'/4
2118
11/8'
2 118
1
l iJ8' 13
Note: Percolation test holes were hand dug in the bottomm of backhoe pits and'.
soaked o, n June 21, 2007. Percolation tests
were conducted on June 22
2007. The average percolation rates were based
on the
last three'readings
of each test.
T68-g99t,08 01
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H03iOE9-c1H:LUo-,A ss:6e �e0a-02--jnr
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EAGLE COUNTY Eagle County OWTS Systems Cleaners Reporting Form
NOTE: Required to be submitted to Environmental Health within 10 days of cleaning an OWTS system
Systems Cleaner Company/%�7ffA_ 41 G-- License Number
Email Address /I7% am' !{l,65* Phone 91—b
Service Technician 41__a(/Q f 11,17 Phone
Tax Parcel # 2113-6�52-Ob-CbV Address of Service _3/ cdT1�5,/
r
Person Requesting Service 6�2�A0� Ow�r 9
Phone 70 ^ 3 7 s
Property Owner a , !, /1'kS Phone � � 17' 37
Septic System Permit Number Tank Size lz5� 4��* `9S
Date of service'"- G-U%� // Tank Material (_1t C�zj_
Sewage Disposal Site �50U 1G (�'rljion altd I/
General Condition and Functionality of the System Sp/ylq? /-"lpr�^^��
• 1'/ f,. , ,'f ,--,O/t ey1 ell j
Ua,11Vy 'Or er/f
nenddd Repairs _ �Q l/ (,( r� e)
Site sketch showing location of the septic tank access lids measured from at least 2 fixed points
(Photos Encouraged)
�IDOR'
Signed —� ` _ Date. 3-2016o
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PROJECT Eric SGC hp. f (e r
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name
phone/fax
e-mail
:roc Sel�a.11er
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Lt1t9�c.�-
documents enclosed
notes
NOTES
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Fl?accr NO.: 08003(AVc.>GhaPter 4 /ndwidual Sewage Disposal Systems.
I
10. The Septic System" Installation shall be inspected b
DATE.• MARC
H 28, 2008
the Eagle Count Environmental -Health Department t and -
9 y _ P _ : VIES
b v the Desion Fnntneer nrior to bnrkfillinn_ �A
