HomeMy WebLinkAboutObservaton of Installation 06.03.25CBO Inc.
129 Cains Lane
Carbondale, CO 81623
970.309.5259
carla.ostberg@gmail.com
June 3, 2025 Project No. C1881
Jesse Schoeller
ftdirtworx@gmail.com
Subsurface Investigation and Onsite Wastewater Treatment System Design
3-Bedroom Residence
6501 CR 170
Garfield County, Colorado
Jesse,
CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on May 13, 2025
for the subject property. Finishing Touch Dirtworx installed the system.
The OWTS design is based on 3-bedrooms. An average daily wastewater flow of 450 GPD was used.
The 4-inch SDR-35 sewer line exiting the residence had a double-sweep clean out and a minimum 2%
grade to the septic tank.
The system installation included a 1000-gallon, two-compartment Infiltrator® poly septic tank with an
Orenco® Biotube effluent filter on the outlet tee. This filter must be cleaned annually, or as needed.
Effluent gravity flows to a distribution box, and then to four gravelless chamber trenches. Each trench
consists of 14 ‘Quick 4’ Standard Plus Infiltrator® chambers for a total of 56 chambers and 672 square
feet of infiltrative area. There was at least 4-feet of undisturbed soil between each trench. Inspection
ports were installed at the beginning and end of each trench. Ports may be cut to grade and placed in
sprinkler boxes for access.
The OWTS was generally installed according to specifications. This observation is not a guarantee of
workmanship and/or parts and materials. CBO Inc. should be notified if changes are made to the OWTS
in the future. Any additional OWTS construction must be according to the county regulations.
LIMITS: Observations are limited to components that are visible at the time of the inspection. The installer must
have documented and demonstrated knowledge of the requirements and regulations of the county in
which they are working. The quality of the installation is dependent on the expertise of the installer, soil
type, and weather conditions.
Please call with questions.
Sincerely,
CBO Inc.
Carla Ostberg, MPH, REHS
Loo king north towards the house (arrow points to clean out) / inlet tee
Outlet with effluent filter
View of septic tank Sewer line
View of distribution box and trenches
Piping to trenches well bedded Angle to be added to inlet on dbox
trenches
7195
719
0
7185
.
0
0
71
9
5
7
1
9
0
7
1
8
5
7
2
0
5
72
0
0
7205 7
2
1
0
719
0
719
5
58.5'
24'
4" DIA SDR-35 INSPECTION PORT AT
BEGINNING AND END OF EACH TRENCH
4" DIA SDR-35 DISTRIBUTION
LINE TO EACH TRENCH
(MIN.1% SLOPE TO TRENCH)
4" DIA SDR-35 SEWER LINE TO STA
(MIN.1% FALL TO STA)
DISTRIBUTION BOX
WITH ACCESS AT GRADE
'QUICK-4' CHAMBER TRENCHES.
4 TRENCHES WITH 14 CHAMBERS PER TRENCH
FOR A TOTAL OF 56 CHAMBERS AND 672 SF.
4" DIA SDR-35 SEWER PIPE WITH CLEANOUT
MIN 2% FALL TO TANK
1000-GALLON, TWO-COMPARTMENT POLY
SEPTIC TANK WITH EFFLUENT SCREEN
50'
100'
3-BEDROOM
RESIDENCE
BM100' = FF 7194'
TP 1
TP 2
TP 3
D
R
I
V
E
W
A
Y
PROPERTY LINE
WELLHOUSE
WITH WELL
W
15%
S
L
O
P
E
WATERLINE
80'
70'
Schoeller Residence
6501 CR 170
Garfield County, Colorado
Project Number: C1881
Date: 05/24/2024
Designed by: CBO
Drawn by: DD Sheet 1 0F 1
RECORD
N
SCALE: 1" = 30'-0"
CBO Inc.
129 Cains Lane
Carbondale, Colorado 81623
Phone 970.309.5259
carla.ostberg@gmail.com
Garfield County Public Health
2014 Blake Ave.
Glenwood Springs, CO 81601
Phone: (970) 945-6614 ext. 8150
For inspections, call: 970-945-6614 ext. 8150 and call the Design Engineer, if applicable
Project Address: 6501 County Road 170, Carbondale, CO Parcel No.: 239117200014
Owner Name: Jesse Schoeller Owner Phone: (970) 618-2860
Designed By: CBO Inc. Designer Phone: (970) 309-5259
Contractor: Finishing Touch Dirtworx, LLC Contractor Phone: (970) 618-2860
Number of Bedrooms: 3 Minimum Tank Capacity: 1,000-gallon Minimum Absorption: 630 ft2
OWTS PERMIT
KEEP AVAILABLE AT PROJECT SITE
Permit Number _SEPT-8728_______________________________
Permit Type X New X Repair X Remodel/addition X Tank only
Issue Date _07/10/2024____________________ Expiration Date_07/10/2025_________________
Permit Conditions:
Permit Conditions: This OWTS Permit is approved on the condition of compliance with the design as
submitted by CBO, Inc. dated May 13, 2024. Changes must be approved by Garfield County Public
Health and the designer prior to construction.
The new OWTS will serve a new 3-bedroom residence. The system will consist of a new, two-
compartment 1,000-gallon septic tank set level with access to grade and an effluent filter in the
outlet tee of the tank. Effluent will gravity flow to a distribution box set level with access to grade
that will distribute effluent to 672 ft2 of STA. The new STA will consist of 4 gravelless trenches
consisting of 14 Quick4 chambers each, for a total of 56 Quick4 chambers. Inspection ports are to be
installed at each end of each trench. Maintain all setbacks and elevations as designed.
To assist in scheduling, please contact Garfield County Public Health (970-945-6614 ext. 8150) to
notify the start of OWTS construction. Contact the designer and Garfield County Public Health at
least 48 hours prior to requesting final inspection of the installed system prior to backfill. NO OWTS
COMPONENT SHALL BE BACKFILLED WITHOUT PRIOR APPROVAL FROM GARFIELD COUNTY PUBLIC
HEALTH AND THE DESIGNER.
Agreement
All installations must comply with all requirements of the Garfield County OWTS regulations
including but not limited to the conditions specified above.
In consideration of the issuance of the permit, the applicant hereby agrees to comply with all
laws and regulations related to the zoning, location, construction, and erection of the proposed
OWTS and associated structures for which this permit is granted. The applicant further agrees
that if the above said regulations are not fully complied with in the zoning, location, erection,
and construction of the above described OWTS and structure, the permit may then be revoked
by notice from the Health Department and immediately become null and void.
The issuance of a permit and specifications of terms and conditions therein will not constitute
assumption of liability, nor create presumption that the local public health agency or its
employees may be liable for the failure or malfunctioning of any system. Permit issuance will
not constitute a certification that the system, the equipment used in the system, or any
component used for system operation will ensure continuous compliance with the provision of
the OWTS Act, the regulations adopted thereunder, or any terms and conditions of a permit.
Permit Approval
Plans and specifications for the proposed OWTS have been reviewed and are considered
satisfactory. Permission is hereby given to the property owner(s) to perform the work indicated
in accordance with the Garfield County OWTS Regulation. This Permit will expire 1 year from
the date of issuance unless construction on the system has commenced. An "as-built" drawing
must be submitted and inspection of the system must be completed by GCPH before final
approval of the system will be issued.
07/10/2024
Issued By: Garfield County Environmental Health
Department
Date
832‐R‐13‐002