HomeMy WebLinkAboutInstallation Observation 06.09.24CBO Inc.
129 Cains Lane
Carbondale, CO 81623
970.309.5259
carla.ostberg@gmail.com
June 9, 2024 Project No. C1870
Dorothy Bleakley
Dbleakley14@gmail.com
Onsite Wastewater Treatment System (OWTS) Installation Observations
387 Meadow Lane
Garfield County, Colorado
OWTS Permit SEPT-8649
Dorothy,
CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on June 4, 2024
for the subject property. Finishing Touch Dirtworx installed the system.
The existing septic tank was abandoned by pumping the tank and removing it or crushing the top,
bottom, and sides and filling in the void with onsite materials. The existing soil treatment area (STA) was
abandoned in place.
The OWTS design is based on 4-bedrooms. An average daily wastewater flow of 525 GPD was used.
The system installation included a 1500-gallon, two-compartment Valley Precast concrete septic tank
with an Orenco® Biotube Pump Vault and an Orenco® PF3005 pump in the second compartment of the
septic tank. The effluent filter in the pump chamber must be cleaned annually, or as needed. The
floats were set to dose approximately 61 gallons each pump cycle . The control panel for the pump is line
of sight of the septic tank. Excel Electric wired the pumping system. At the time of our inspection, we tested
the floats and alarms.
Effluent is pumped through a 1.5-inch diameter pump line from the pump chamber to an Orenco®
automatic distributing valve (ADV), model 6402. The ADV was placed at a high point in the system in an
insulated riser with access from grade.
Effluent is pressure dosed to through 1.5-inch diameter distribution lines to two 10’ x 33’ beds. A minimum of
3-feet of sand filter material was installed in the over-excavated footprints.
Laterals were 1.5-inches in diameter with 5/32-inch diameter orifices facing down, spaced 2.5-feet on center,
installed on the GeoMat™ with the filter fabric over the laterals. Laterals were placed 2-feet from the edges
of the bed with 3.0-feet between the laterals. Laterals will be connected with 1.5-inch diameter level
manifolds. Three 39” wide GeoMat™ sheets were placed on the 10-foot wide beds.
Each 1.5-inch diameter lateral ends in a sweeping ell facing up with a ball valve for flushing. Valves were
placed in a 10-inch sprinkler box for access. Laterals must be covered by a soil separation fabric and at
least 1-foot of topsoil or other suitable soil able to support vegetative growth. Inspection ports must be
placed at each corner of each bed. Ports may be cut to grade and covered with a valve box for access.
We performed a squirt test and cycled the ADV several times at the time of our inspection.
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
View of STAs (looking from Meadow Lane)
Looking toward water line (25’ setback met) STA
Clean out Septic tank lids
Inlet tee Pump chamber
Control panel
ADV to STAs
ADV manifold on each bed
View of manifold and orifice shields under orifices, sitting on GeoMat
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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: 387 Meadow Lane Glenwood Springs Parcel No.: 218535483028
Owner Name: David and Dorothy Bleakley Owner Phone: (970) 274-2710
Designer: CBO Designer Phone: (970) 309-5259
Number of Bedrooms _4__Minimum Tank Capacity __1,250_gal__Minimum Absorption _656.25 ft 2
OWTS PERMIT
KEEP AVAILABLE AT PROJECT SITE
Permit Number _SEPT-8649_
Permit Type X New X Repair X Remodel/addition X Tank only
Issue Date 05/21/2024 Expiration Date 05/21/2025
Permit Conditions:
This OWTS Permit is approved on the condition of compliance with the design as submitted by CBO
dated April 29, 2024. Changes must be approved by Garfield County Public Health and the designer
prior to construction.
The new OWTS will serve an existing 4-bedroom residence that is currently on the site. The existing
OWTS will be abandoned in place. The new system will consist of a new, two-compartment
minimum 1,500-gallon septic tank set level with access to grade, with a high-head pump in the
second compartment. Effluent will be pumped to an automatic distributing valve set at the high
point of the system that will distribute effluent to 660 ft2 of STA. The STA will consist of two GeoMat
beds 10-feet wide by 33-feet long placed on a minimum of 3 feet of secondary sand media with four-
feet between each bed. Laterals will consist of 1.5-inch diameter Schedule 40 PVC with 5/32-inch
orifice holes spaced 2.5-feet on-center (O.C.) and ending in a sweeping ell with flush valves.
Inspection ports are to be installed at each corner of each bed. 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.
05/21/2024
Issued By: Garfield County Environmental Health
Department
Date
832‐R‐13‐002