HomeMy WebLinkAboutOWTS Installation Observations 10.03.2025CBO Inc.
129 Cains Lane
Carbondale, CO 81623
970.309.5259
carla.ostberg@gmail.com
October 3, 2025 Project No. C1956
Paul Samuelson
pablosam@hotmail.com
Onsite Wastewater Treatment System (OWTS) Installation Observations
4633 CR 214
Garfield County, Colorado
OWTS Permit SEPT-9249
Paul,
CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on May 27, 2025
for the subject property. Silt Mesa Excavating installed the system.
The OWTS design is based on 2-bedrooms. An average daily wastewater flow of 300 GPD was used.
A new, 4-inch Schedule 40 sewer line begins at the existing double-sweep clean out and has a 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 should be cleaned annually, or as needed.
Risers bring the manhole lids to grade for access.
Effluent gravity flows to a distribution box, and then to three gravelless chamber trenches. The
distribution box was accessible from grade with flow equalizers.
Each trench consists of 12 ‘Quick 4’ Standard Plus Infiltrator® chambers for a total of 36 chambers and
432 square feet of infiltrative area. There were 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
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: 4633 CR 214, Silt Parcel No.: 218106200047
Owner Name: Paul Samualson, Tim Heng, Anthony Zarlingo Owner Phone: (970) 250-7075
Designed By: CBO Inc. Designer Phone: (970) 309-5259
Number of Bedrooms: _2_ Minimum Tank Capacity: 1000-gallon Minimum Absorption: 420 ft 2
OWTS PERMIT
KEEP AVAILABLE AT PROJECT SITE
Permit Number _SEPT-9249_______________________________
Permit Type X New X Repair X Remodel/addition X Tank only
Issue Date _05/20/2025____________________ Expiration Date_05/20/2026_________________
Permit Conditions:
This OWTS Permit is approved on the condition of compliance with the report and design as
submitted by CBO Inc. dated May 14, 2025. Changes to the design and permit must be approved by
Garfield County Public Health and the designer prior to construction.
The new OWTS will serve a two-bedroom residence. A new 1000-gallon two compartment septic
tank set level with access to grade with an effluent filter installed in the outlet tee of the tank will be
installed. The septic tank shall be on the Colorado Department of Public Health and Environment’s
approved septic tank list. Effluent will gravity flow to a new distribution box set level with access to
grade and then to a distribution box that will distribute effluent to 432 ft 2 of STA. The new STA area
will consist of three gravelless chamber trenches, each trench consisting of 12 ‘Quick 4’ chambers
per trench (36 chambers total). Inspection ports will be installed at each end of each trench.
Maintain all setbacks and elevations as designed. The existing tank must be abandoned per Garfield
County OWTS Regulations by crushing or removal.
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.
05/20/2025
Issued By: Garfield County Environmental Health
Department
Date
832‐R‐13‐002