HomeMy WebLinkAboutOWTS Installation Observations 02.25.2025CBO Inc.
129 Cains Lane
Carbondale, CO 81623
970.309.5259
carla.ostberg@gmail.com
February 25, 2025 Project No. C1715
Kim Ochko
kim@gouldconstruction.com
Onsite Wastewater Treatment System (OWTS) Installation Observations
1-Bedroom Accessory Dwelling Unit (ADU)
4362 CR 100
Garfield County, Colorado
OWTS Permit SEPT-8030-REVISED
Kim,
CBO Inc. observed the installation of the onsite wastewater treatment system (OWTS) on July 5, 2023 for
the subject property. Matt Jaeger installed the system.
Although the ADU has only 1-bedroom, Garfield County OWTS Regulation requires sizing be based on a
minimum design flow for 2-bedrooms. The OWTS design is based on 2-bedrooms. An average daily
wastewater flow of 300 GPD was used.
The 4-inch 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 includes a 1000-gallon, two-compartment Roth® poly septic tank with an
Orenco® Biotube effluent filter on the outlet tee. The effluent filter must be cleaned annually, or as
needed.
Effluent gravity flows to a distribution box, and then to three gravelless chamber trenches. The
distribution box was accessible from grade with flow equalizers installed on each outlet pipe in the
distribution box to assure equal flow to each trench.
Each trench consists of 10 ‘Quick 4’ Standard Plus Infiltrator® chambers for a total of 30 chambers and
360 square feet of infiltrative area. There was at least 4-feet of undisturbed soil between each trench.
Inspection ports were installed at the beginning and end of each trench. Ports may be cut to grade and
placed in sprinkler boxes for access.
The record drawing provided is not the result of a survey.
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 trenches View of septic tank
Sewer line encasement at water line crossing
Sewer line at foundation (clean out)
View of septic tank Inlet tee
Outlet tee with effluent filter Distribution box
D-box Sewer line (SDR-35)
Trench with inspection ports
Measurement from water line End caps on encasement pipe
Angle on inlet pipe in distribution box
Trenches
Upper most trench Looking from septic tank to distribution box
(note handle extension on effluent filter)
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:4362 CR 100 Carbondale,CO Parcel No.:239130100027
Owner Name:Kim and Steve Ochko Owner Phone:970)618 1860
Designed By:CBO Designer Phone:970)309 5259
Number of Bedrooms:1 Minimum Tank Capacity:1,000 gallon Minimum Absorption:350 ft2
OWTS PERMIT
KEEP AVAILABLE AT PROJECT SITE
Permit Number SEPT 8030 Revised__________________________
Permit Type X New X Repair X Remodel/addition X Tank only
Issue Date 05/30/2023____________________Expiration Date_05/30/2024_________________
Permit Conditions:
Permit Conditions:This OWTS Permit is approved on the condition of compliance with the revised
design as submitted by CBO dated May 25,2023.Changes must be approved by Garfield County
Public Health and the designer prior to construction.
The new OWTS will serve a new 1 bedroom ADU.The system will consist of a new,two
compartment minimum 1,000 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 360 ft2 of STA.The new STA will consist of 3 gravelless trenches.
Each trench will consist of 10 Quick4 chambers,for a total of 30 Quick4 chambers.Inspection ports
are to be installed at the both ends 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.
05/30/2023
Issued By:Garfield County Environmental Health
Department
Date
E
LOT 2
19.022 ACRES ±
LOT 1
SET NO.5 REBAR & 1-1/4" ORANGE
PLASTIC CAP LS38215 (TYP)
FOUND NO.5 REBAR
FOUND NO.5 REBAR & 1-1/4"
YELLOW PLASTIC CAP LS13166
CENTER EAST 1/16TH OF SEC. 30
FOUND 2" ALUMINUM CAP LS13166
CENTER QUARTER OF SECTION 30
FOUND 3" GARCO BRASS CAP
"1963"
30
LOT 3
SITE BENCHMARK
FOUND NO.5 REBAR & 1-1/4"
YELLOW PLASTIC CAP LS13166
ELEVATION: 6540.43'
FOUND NO.5 REBAR & 1-1/4"
YELLOW PLASTIC CAP LS13166
FOUND NO.5 REBAR & 1-1/4"
YELLOW PLASTIC CAP LS13166
ROCKY MOUNTAIN NATURAL GAS
50' RIGHT-OF-WAY AND EASEMENT
BOOK 401, PAGE 396
30' INGRESS, EGRESS & UTILITY
EASEMENT REC. NO.461773
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IRENE GREEN SUB. EXEMPTION.
EASEMENT TO COMMENCE AT
EXISTING SPRING WATER LINE
SERVICE AS BUILT AND IN PLACE
BASIS OF BEARINGS M=S89°55'37"W 1133.74'
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NORTH QUARTER OF SECTION 30
FOUND 2" ALUMINUM CAP LS13166
RMNG 6" UNDERGROUND
GAS TRANSMISSION LINE36.4'
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4362 COUNTY ROAD 100, CARBONDALE
2-STORY WOOD FRAME HOME
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LEACH
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COUNTY ROAD 100
(UNKNOWN RIGHT-OF-WAY WIDTH)
SITE
TELEPHONE PEDESTAL
ELECTRICAL METER
LEGEND
E
SURVEY NOTES:
5.THIS SURVEY WAS PREPARED WITHOUT THE BENEFIT OF A TITLE COMMITMENT, THEREFORE, ANY EXCEPTIONS TO
TITLE THAT MAY AFFECT THE SUBJECT PROPERTY HAVE NOT BEEN REVIEWED BY TRUE NORTH COLORADO, LLC.
7.ELEVATIONS SHOWN HEREON ARE BASED ON NORTH AMERICAN VERTICAL DATUM OF 1988 (NAVD88) WHICH
DATA WAS OBTAINED FROM THE NATIONAL GEODETIC SURVEY ONLINE POSITIONING USER SERVICE (OPUS).
8.CONTOUR INTERVAL EQUALS 2 FEET.
LOT 2 IRENE GREEN SUBDIVISION EXEMPTION PLAT,
SITUATED IN THE SW1/4NE1/4 OF SECTION 30,
TOWNSHIP 7 SOUTH, RANGE 87 WEST OF THE 6TH PM
COUNTY OF GARFIELD, STATE OF COLORADO
EXISTING CONDITIONS SURVEY
TRUE NORTH COLORADO LLC.
A LAND SURVEYING AND MAPPING COMPANY
P.O. BOX 614 - 386 MAIN STREET UNIT 3
NEW CASTLE, COLORADO 81647
(970) 984-0474
www.truenorthcolorado.com
PROJECT NO: 2022-189
DATE: MAY 24, 2022
DRAWN
LDV
SURVEYED
MAN
SHEET
1 OF 1
TRUENORTH
A LAND SURVEYING AND MAPPING COMPANY70'
35'140'
SCALE: 1" = 70'
N
PROPERTY DESCRIPTION:
0
NOTICE: ACCORDING TO COLORADO LAW YOU MUST COMMENCE ANY
LEGAL ACTION BASED UPON ANY DEFECT IN THIS SURVEY WITHIN THREE
YEARS AFTER YOU FIRST DISCOVER SUCH DEFECT. IN NO EVENT MAY ANY
ACTION BASED UPON ANY DEFECT IN THIS SURVEY BE COMMENCED MORE
THAN TEN YEARS FROM THE DATE OF CERTIFICATION SHOWN HEREON.
VICINITY MAP
W WELL
S SANITARY MANHOLE
ELECTRICAL OUTLET
POWER POLE
G GAS MARKER
SURVEYOR 'S STATEMENT
I, RODNEY P. KISER, DO HEREBY STATE THAT THIS EXISTING CONDITIONS SURVEY WAS PREPARED BY TRUE NORTH
COLORADO, LLC. FOR STEVEN & KIMBERLY OCHKO, THAT SAID SURVEY WAS PREPARED BY ME OR UNDER MY
SUPERVISION AND RESPONSIBLE CHARGE AND THAT IT IS TRUE AND CORRECT TO THE BEST OF MY BELIEF AND
KNOWLEDGE.
WOOD FENCE
CATV LINE
OVERHEAD ELECTRIC LINE
MAILBOX
832‐R‐13‐002