HomeMy WebLinkAboutObservation of Installation 07.07.2022CBO Inc.
129 Cains Lane
Carbondale, CO 81623
970.309.5259
carla.ostberg@gmail.com
July 7, 2022 Project No. C1647
Matthew Ringer
mmringer21@gmail.com
Onsite Wastewater Treatment System (OWTS) Installation Observations
7315 Garfield Creek Road
Garfield County, Colorado
Permit Number SEPT-10-21-7215
Matthew,
CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on December 3,
2021 for the subject property. Future Company West 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 SDR-35 sewer line exiting the residence had a clean out and a minimum 2% grade
to the septic tank.
The system installation included a 1500-gallon, two-compartment Norwesco® poly septic tank with an
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 six trenches, each 58.5-feet in length. The
distribution box was accessible from grade and we instructed the contractor to install flow equalizers on
each outlet pipe in the distribution box to assure equal flow to each trench.
Each trench was 36-inches wide and 60-feet long with a minimum of 6-inches of sand filter material was
placed in the trench. A gradation of the sand media is enclosed.
GeoMat™ was placed on top of the sand filter material the entire length each trench. A 4-inch diameter
perforated pipe was placed down the center of the GeoMat™, under the top layer of fabric. The soil
treatment area (STA) consists of a total of 360 linear feet of 39-inch wide GeoMat™.
There was at least 4-feet of undisturbed soil between each trench. Inspection ports were installed at the
beginning and end of each trench. The front inspection port was placed to the side of the GeoMat™ and
the end inspection port was tied onto the end of the lateral. 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
Clean out near residence / sweeps to tank Norewsco tank with risers
Inlet tee Outlet tee with effluent filter
Sewer pipe existing septic tank Pipe from septic tank to distribution box
Distribution box and trenches Distribution box (flow equalizers were to be installed)
Perf pipe run the length of the GeoMat™, placed under the separation fabric
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: 7315 County Road 312, New Castle, CO 81642_ Parcel No.: _218332200011
Owner Name: Matthew Ringer Owner Phone: (970) 618-5993
Designed By: CBO, Inc. Designer Phone: (970) 309-5259
Contractor: Future Company West Contractor Phone: (970) 987-1551
Number of Bedrooms: _4_ Minimum Tank Capacity: 1,250-gallon Minimum Absorption: 1050 ft 2
OWTS PERMIT
KEEP AVAILABLE AT PROJECT SITE
Permit Number _SEPT-7215_______________________________
Permit Type X New X Repair X Remodel/addition X Tank only
Issue Date _11/15/2021____________________ Expiration Date_11/15/2022_________________
Permit Conditions:
This OWTS Permit is approved on the condition of compliance with the report and design as
submitted by CBO, Inc. dated October 16, 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 1,250-gallon septic tank set level with access to grade. Effluent will gravity flow to a
distribution box and then to six trenches, each 58.5-feet in length that will distribute effluent to
1,053 ft2 of STA. Each trench will be 36-inches wide and a minimum of 6-inches of sand filter
material. The new STA will consist of a total of 351 linear feet of 39-inch wide GeoMat™ including
geotextile fabric. Distribution laterals will be placed on GeoMat™ distribution mats placed directly
on the sand. Distribution laterals are to be 4-inch diameter perforated distribution pipe. Inspection
ports are to be installed at the beginning and 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.
11/15/2021
Issued By: Garfield County Environmental Health
Department
Date
832‐R‐13‐002