HomeMy WebLinkAboutOWTS Installation Observation 11.09.2023CBO Inc.
129 Cains Lane
Carbondale, CO 81623
970.309.5259
carla.ostberg@gmail.com
November 9, 2023 Project No. C1744
Emanuel Rivas
armandorivas_19@hotmail.com
Onsite Wastewater Treatment System Design
1439 Donovan Road
Garfield County, Colorado
OWTS Permit SEPT-7759 Revised
Emanual,
CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on June 19, 2023
for the subject property. E&L Trucking installed the system.
The OWTS design is based on 5-bedrooms. An average daily wastewater flow of 600 GPD was used.
The 4-inch diameter SDR-35 sewer line exiting the residence has a double-sweep clean out and a
minimum 2% grade to the septic tank.
The system installation included a 1500-gallon, two-compartment septic tank Infiltrator® poly septic tank
with an Orenco® Biotube Effluent Filter on the outlet tee. This filter must be cleaned annually, or as
needed. Risers must bring the manhole lids to grade for access.
Effluent gravity flows to a distribution box, and then to two gravelless chamber beds. The distribution box
was accessible from grade with flow equalizers installed on each outlet pipe to assure equal flow to each
bed.
Each bed consists of 3 rows of 12 ‘Quick 4’ Standard Plus Infiltrator® chambers for a total of 72
chambers and 864 square feet of infiltrative area. Because trenches were previously installed, the
separation between the beds is closer to 4-feet rather than the typical 6-feet. Inspection ports were
installed at the corners of each bed. 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
Sewer line from house to septic tank
Inlet tee Outlet tee with effluent filter (recommend handle extension)
Clean out near residence Chamber beds
Fall on sewer line from house Sewer line exits side of septic tank
View of distribution box and chamber bed
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:TBD Donegan Road,Glenwood Springs,CO 81601
Parcel No.:218505100121
Owner Name:Emanuel A.Rivas Ayula Owner Phone:970)366 1963
Designed By:CBO Septic Consulting,Inc.Designer Phone:970)309 5259
Contractor:Cuelta Construction Contractor Phone:970)404 0302
Number of Bedrooms 5__Minimum Tank Capacity 1,500 gal__Minimum Absorption_840 SF
OWTS PERMIT
KEEP AVAILABLE AT PROJECT SITE
Permit Number SEPT 7759 Revised____________________
Permit Type X New X Repair X Remodel/addition X Tank only X Field Only X Amendment
Issue Date 05/12/2023 Expiration Date 05/12/2024
Permit Conditions:
This OWTS Permit is approved on the condition of compliance with the revised design as submitted
by CBO Septic Consulting,Inc.dated May 3,2023.Changes must be approved by Garfield County
Public Health and the designer prior to construction.
The new OWTS will serve a new 5 bedroom residence.The system will consist of a new,two
compartment minimum 1,500 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 864 ft2 of STA.The new STA will consist of two gravelless
chamber beds.Each bed will consist of three rows of 12 Quick4 chambers,for a total of 36 Quick4
chambers per bed and 72 chambers total.Inspection ports shall be installed at each corner of each
bed.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.
05/12/2023
Issued By:Garfield County Environmental Health
Department
Date
832‐R‐13‐002