HomeMy WebLinkAboutInstallation Observation 04.04.2023CBO Inc.
129 Cains Lane
Carbondale, CO 81623
970.309.5259
carla.ostberg@gmail.com
April 4, 2023 Project No. C1700
Stig Svedberg
ssvedberg@comcast.net
Onsite Wastewater Treatment System (OWTS) Installation Observations
277 JB Court
Garfield County, Colorado
Permit Number SEPT-7541
Stig,
CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on June 1, 2022
for the subject property. Sacred Ground Excavation installed the system.
The existing septic tank serving the 2-bedroom residence was pumped and the top, bottom, and sides
crushed, and remaining void filled with onsite material or removed. The existing soil treatment area
(STA) was abandoned in place.
Canyon Creek runs to the west of the residence within the western property boundary. The existing
septic tank was located within the 50-foot setback to the creek and the existing on-site well. Garfield
County On-Site Wastewater Treatment System Regulations, Table 7-1, Note: states “For repair or
upgrading of existing OWTS where the size of lot precludes adherence to these distances, a repaired
OWTS must not be closer to setback features than the existing OWTS, as reviewed and approved by the
local public health agency.” The new septic tank is further from both Canyon Creek and the on-site well
than the existing septic tank. Additionally, a bitumastic coating was applied to the outside of the septic
tank to further protect against the potential of leaking.
An existing irrigation and ditch and pond are located greater than 50-feet from the STA to the west. It
appeared over-flow may have occurred in the past, so a berm was constructed to protect the STA should
over-flow occur in the future (photos below).
The OWTS design is based on 2-bedrooms. An average daily wastewater flow of 300 GPD was used.
The sewer line exiting the residence has a double-sweep clean out and a minimum 2% grade to the
septic tank. This sewer line was encased where it comes within 50-feet from the existing well.
The system installation included a 1000-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. There is a filter in the second compartment of the septic tank that must be cleaned
annually, or as needed. The floats were set to dose approximately 80 gallons each pump cycle. A pump
curve is enclosed. The control panel for the pump 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 6402. The pump line that runs under the driveway and within the 50-foot well
setback was encased. The ADV was placed at a high point in the system in an insulated riser with access
from grade.
Effluent is pressure dosed through 1.5-inch diameter pipes to a gravelless chamber beds with four rows
of 13 ‘Quick 4’ Standard Plus Low Profile Infiltrator® chambers, for a total of 52 chambers and 624
square feet of infiltrative area. The ADV divides the bed into two zones, each with 2 rows connected with
a level manifold. Effluent is pressure dosed to 1.5-inch diameter laterals, which were hung with zip ties
from the underside of the chambers. Laterals have 5/32-inch diameter orifices facing up, with the
exception of the first and last holes facing down for drainage. Orenco® Orifice Shields were placed
under each downward-facing orifice. The orifices were placed 3-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 may be
cut to grade and covered with a valve box 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
ADV and STA ADV
Pump line to ADV Pump line entering ADV
Pump line
Septic tank Pump line exists tank / note bitumastic coating / trench for pump line
Existing sewer line well
View of new tank / old tank in foreground View of well house to right and new tank on left
Berm constructed between pond and STA
View of pond (empty) View of edge of pond
Berm between pond and STA
07/06/2022
To Whom It May Concern:
We have been to the following site(s):
277 JB Court, Glenwood Springs
We have verified that the system was started properly. The System went through several
cycles with no issues.
Sincerely,
Scott McIntosh
Service Manager
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: 277 JB Court, Glenwood Springs, CO 81601 Parcel No.: 212325300046
Owner Name: Stig and Dawn Svedberg Owner Phone: (925) 4077195
Designed By: CBO Septic Consulting, Inc. Designer Phone: (970) 309-5259
Contractor: Sacred Ground Excavating Contractor Phone: (970) 618-2489
Number of Bedrooms _2__Minimum Tank Capacity __1,000-gal__Minimum Absorption_600 SF
OWTS PERMIT
KEEP AVAILABLE AT PROJECT SITE
Permit Number _SEPT-7541________________________
Permit Type X New X Repair X Remodel/addition X Tank only X Field Only X Amendment
Issue Date 05/26/2022 Expiration Date 05/26/2023
Permit Conditions:
This OWTS Permit is approved on the condition of compliance with the design as submitted by CBO
Septic Consulting, Inc. dated March 28, 2022. Changes must be approved by Garfield County Public
Health and the designer prior to construction.
The new OWTS will serve an existing two-bedroom residence. The system will consist of a new, two-
compartment 1,000-gallon septic tank set level with access to grade and a high-head pump in the
second chamber of the tank. The existing septic tank and STA will be abandoned in place. Effluent
will be pressure-dosed to an automatic distributing valve (ADV) set level with access to grade at the
high point of the system that will distribute effluent to 624 ft2 of STA. The new STA will consist of a
four row gravelless chamber bed consisting of 13 chambers per row (52 chambers total). The ADV
will separate the bed into two two-row zones that are connected by a level manifold. Laterals and
the pump line shall consist of 1.5-inch diameter Schedule 40 PVC. Laterals shall be hung from the
underside of the chambers with zip ties and have 5/32” orifices every 3 feet on center. Orifices shall
be facing up except for the first and last orifices. Laterals shall end in a sweeping 90-degree ell facing
up with a ball valve to allow flushing of the lines. Inspection ports are to be installed at each corner
of the 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.
05/26/2022
Issued By: Garfield County Environmental Health
Department
Date
Garfield County Public Health Department – working to promote health and prevent disease
Public Health
Stig and Dawn Svedberg
277 JB Court
Glenwood Springs, CO 81601
Via email: ssvedberg@comcast.net
Subject: Final Acceptance Letter
277 JB Court
Glenwood Springs, CO 81601
OWTS Permit #: SEPT‐7541
September 21, 2022
Stig and Dawn,
On June 1, 2022, we visited the residence at 277 JB Court near Glenwood Springs in Garfield
County, Colorado to observe the OWTS installation pursuant to OWTS Permit # SEPT‐7541. At the time
of our site visit, the contractor had installed the new concrete 1,000‐gallon two‐compartment septic
tank with a high‐head pump in the second compartment of the tank, the pump line, the Automatic
Distributing Valve (ADV), and the two zone, four‐row chamber bed Soil Treatment Area (STA). The STA
consists of four rows of 13 Infiltrator Quick4 chambers per row (52 chambers total, 624 ft2 total STA).
The new tank and ADV were installed level with access to grade. The ADV was installed at the high point
of the OWTS. The In our opinion, this system was installed in general conformance with Garfield County
OWTS Regulations. Please submit an As‐built drawing of the system when available. No further action or
review from Garfield County Environmental Health is required regarding this permit.
Thank you,
Edward R. “Ted” White, P.E.
Environmental Health Specialist III
Garfield County Public Health
2014 Blake Avenue
Glenwood Springs, CO 81601
(970) 945‐6614 ext. 8106
twhite@garfield‐county.com
195 W. 14th Street
Rifle, CO 81650
(970) 625‐5200
2014 Blake Avenue
Glenwood Springs, CO 81601
(970) 945‐6614
832‐R‐13‐002