HomeMy WebLinkAboutOWTS Installation Observations 06.12.2023CBO Inc.
129 Cains Lane
Carbondale, CO 81623
970.309.5259
carla.ostberg@gmail.com
June 12, 2023 Project No. C1596
Ben Allen
beniasedgwick@yahoo.com
Onsite Wastewater Treatment System (OWTS) Installation Observations
184 Clipper Place
Garfield County, Colorado
OWTS Permit SEPT-6937
Ben,
CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on January 13,
2022 and June 12, 2023 for the subject property. Timberline Excavation installed the system.
The OWTS design is based on 4-bedrooms. An average daily wastewater flow of 525 GPD was used.
The 4-inch diameter 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 1500-gallon, two-compartment poly Infiltrator® septic tank with an
Orenco Biotube Effluent filter on the outlet tee followed by a 500-gallon poly Infiltrator® pump chamber
with an Orenco® Biotube Pump Vault and an Orenco® PF3005 pump. The filters must be cleaned
annually, or as needed. The floats were set to dose approximately 70 gallons each pump cycle. The
control panel is located within line of sight of the septic tank. Valley Precast out of Buena Vista performed
start-up of the pumping system.
A 1.5-inch diameter Schedule 40 pump line was installed from the pump to an Orenco® automatic
distributing valve (ADV), model 6605. The ADV was placed at a high point in the system in an insulated riser
with access from grade.
Effluent was pressure dosed through 1.5-inch diameter pipes to five trenches, each with 14 ‘Quick 4’
Standard Plus Infiltrator® chambers, for a total of 70 chambers and 840 square feet of infiltrative area.
There was at least 4-feet of undisturbed soil between each trench. Effluent is pressure dosed to 1.5-inch
diameter laterals, which were hung with zip ties from the underside of the chambers. Laterals had 5/32-
inch diameter orifices facing up, with the exception of the first and last holes facing down for drainage.
The orifices were placed 2.5-feet on center. Each lateral ends in a 90 degree ell facing up with a ball
valve for flushing. Valves were placed in a valve box, accessible from grade, for access. Inspection ports
were placed at the beginning and end of each trench. Ports were cut to grade and covered with a valve
box for access.
Tracer wire was used on all sewer lines for future location.
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.
6-13-2023
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. Reviewed By:
Carla Ostberg, MPH, REHS Romeo Baylosis, P.E.
January 13, 2022
Clean out near foundation Clean out on sewer line between house and tank
View of septic tanks Sewer line enters side of tank
Inlet tee Effluent filter (handle extension added)
Sewer line between septic tank and pump chamber/ pump chamber
Pump line exiting riser ADV
Trenches
June 12, 2023
Control panel mounted on east side of garage wall (exterior)
View of septic tank lids
ADV View from ADV looking toward STA
Inspection ports and flushing valves in valve boxes
Flushing valve Clean out near entry
06/09/2023
To Whom It May Concern:
We have been to the following site:
184 Clipper Place, Carbondale, Garfield County
We have verified that the system was started properly. The System went through several
cycles with no issues.
- Amperage and voltage of control panel, floats, and pump are all within
manufacturers specifications and tolerance at start up.
- Floats verify for functionality.
- High level alarm functions upon activation at control panel.
If you have any questions, please do not hesitate to call me at 719-395-6764, ext. 13.
Sincerely,
Scott McIntosh
Service Manager
Garfield Cousity
Public Health
Garfield County Public Health
2014 Blake Ave.
Glenwood Springs, CO 81601
Phone: (970) 945-6614 ext. 8150
Permit Number SEPT-6937
OWTS PERMIT
KEEP AVAILABLE AT PROJECT SITE
Permit Type X New X Repair X Remodel/addition X Tank only
Issue Date 07/06/2021 Expiration Date 07/06/2022
For inspections, call: 970-945-6614 ext. 8150 and call the Design Engineer, if applicable
Project Address: 184 Clipper Place Carbondale CO 81623 Parcel No.: 239129105024
Owner Name: Sherman Muller and Janice James Owner Phone: (303) 907-5511
Designed By: CBO Septic Consulting, Inc. Designer Phone: (970) 309-5259
Number of Bedrooms: 4 Minimum Tank Capacity: 1,250-gallon Minimum Absorption: 840 ftz
Permit Conditions:
This OWTS Permit is approved on the condition of compliance with the report and design as
submitted by CBO Septic Consulting, Inc. dated May 25, 2021. 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 new four -bedroom residence. The system will consist of a new, two -
compartment 1,500-gallon septic tank set level with access to grade followed by a 500-gallon single -
chamber pump chamber set level with access to grade and a high -head pump in the pump chamber.
Effluent will be pumped to an automatic distributing valve set at the high point of the system that
will distribute effluent to 840 ftZ of STA. The new STA will consist of five gravelless chamber
trenches, each trench consisting of 14 chambers per trench (70 chambers total). Distribution laterals
are to be 1'/2 inch Schedule 40 PVC, with 5/32-inch orifices 2.5-feet on center and the laterals ending
in flushing valves at the distal end of the laterals. Laterals are to be hung from the underside of the
chambers with zip -ties. The orifices are to be facing upward, except for the first and last orifice
which shall face downward for drainage purposes). Inspection ports are to be installed at each end
of each trench. Maintain all setbacks and elevations as designed.
Contact the designer and Garfield County Public Health at least 48 hours prior to requesting final
inspection of the installed system prior to backfill.
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.
07/06/2021
Issued By: Garfield County Environmental Health Date
Department
832‐R‐13‐002