HomeMy WebLinkAboutOWTS Installation Observations 08.07.2020ALL
33 Four Wheel Drive Rd
Carbondale, Co 81623
970-309-5259
August 7, 2020 Project No. C1408
Matt Ehlers
matt@truenorthfireplaces.com
Onsite Wastewater Treatment System (OWTS) Installation Observations
1466 CR 132
Garfield County, Colorado
Permit Number SEPT -08-18-5416
Matt,
ALL SERVICE septic, LLC observed the installation of the onsite wastewater treatment system (OWTS)
on November 2 and December 5, 2019 for the subject property. Walters Company installed the system.
The OWTS design was based on 4 -bedrooms in the main house and 1 -bedroom in a future,
detached ADU. An average daily wastewater flow of 675 GPD was used. The location of the future
ADU had not been determined at the time of this installation. It is likely an additional septic tank may be
required to accommodate gravity flow from the ADU, should it be built in the future.
The installation included a 2000 -gallon, two-compartment septic tank with an Orenco® ProPak pumping
system and PF3005 pump in the second compartment of the septic tank. The floats were set to dose
approximately 80 gallons each pump cycle, allowing for approximately 3 gallons of drain back into the
pump chamber after each pump cycle. Valley Precast out of Buena Vista performed start up on 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. This pump line had a minimum 1"1/0 grade for proper drain back into
the tank after each pump cycle. The ADV was placed 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 two beds, each with 3 rows of 11 'Quick 4'
Infiltrator@ chambers, for a total of 66 chambers and 792 square feet of infiltrative area. There was at
least 6 -feet of undisturbed soil between each bed. 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 may
be placed in a valve box, accessible from grade, for access. Inspection ports were placed at each corner
of each bed. 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. ALL SERVICE septic, LLC 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 of the expertise of the installer, soil
type, and weather conditions.
Please call with questions.
Sincerely,
ALL SERVICE septic, LLC
Bch 2- (.'v-bf-Ls
Carla Ostberg, MPH, REHS
Reviewed By:
Richard H. Petz,
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8/9/2020
--
Chamber beds being installed / 8" washed sand used for bedding (not specified in designed but
approved)
Winter conditions encountered during excavation
Care taken to use concrete blankets to protect soils from snow and moisture
laterals under chambers with orifice shields on downward facing orifices
ADV
JE=
Septic tank installation
169.62'
5
0' 10' 20'
Scale: 1" = 20'=0"
I
Site Bench ark
Elev. = 62.8.00' -\„.
Building Envelope
1.5" DIA SCH-40 PVC SUSPENDED LATERALS
WITH 5/32" DIA ORIFICES, FACING UP 3' O.C.
FIRST AND LAST ORIFICES FACE DOWN
WITH AN ORIFICE SHIELD FOR DRAINAGE
'QUICK -4' CHAMBER BEDS. EACH WITH
3 ROWS OF 11 CHAMBERS = 66
CHAMBERS = 792 SF
Lot 1
6.58 Acres
1.5" DIA SCH-40 PVC PUMP LINE
FROM PUMP CHAMBER TO ADV
(MIN. 1% FOR DRAIN BACK)
2000 -GALLON, TWO -COMP.
'VALLEY PRECAST', CONCRETE
SEPTIC TANK W/ 'ORENCO' PRO
PAK PUMP SYSTEM
APPROX.
FLOOR
ELEVATION 6286
FLUSHING ASSEMBLY AT
END OF EACH LATERAL
INSPECTION PORTS AT CORNERS
OF EACH BED
ADV MODEL 6402 AT HIGH
POINT, ACCESSIBLE AT GRADE
4" DIA SDR -35 SEWER LINE WITH
DOUBLE -SWEEP CLEANOUT
(MIN. 2% SLOPE TO TANK)
°
4
°
O RECORD DRAWING
,.=20'_0"
33 Four Wheel Drive Road
Carbondale, Colorado 81623
Phone 970.309.5259
carla@allserviceseptic.com
Ehlers Residence
TBD Mitchell Creek Road
Garfield County, Colorado
Project Number: C1408
Date: 08/07/20
Designed By: CBO
Reviewed By: RHP
Drawn By: DN
record
Sheet 1 of 1
Do Your Part, Be SepticSmart:
The Do's and Don'ts of Your Septic System
Learn these simple steps to protect your home, health, environment and property value:
septicsmart
U.S. Environmental Protection Agency
Do:
• Have your system inspected (in general) every three years by a licensed contractor
and have the tank pumped, when necessary, generally every three to five years.
Don't:
• Pour cooking grease or oil down the
sink or toilet.
• Rinse coffee grounds into the sink.
• Pour household chemicals down the
sink or flush them.
Do:
• Eliminate or limit the use of a garbage
disposal.
• Properly dispose of coffee grounds a
food.
• Put grease in a container to harden
before discarding in the trash.
Don't:
• Flush non -degradable products or
chemicals, such as feminine hygiene
products, condoms, dental floss,
diapers, cigarette butts, cat litter, paper
towels, pharmaceuticals.
Do:
• Dispose of these items in the trash can!
Don't:
• Park or drive on your drainfield. The
weight can damage the drain lines.
• Plant trees or shrubs too close to your
drainfield, roots can grow into your
system and clog it.
Do:
• Consult a septic service professional to
advise you of the proper distance for
planting trees and shrubs, depending on
your septic tank location.
Don't
• Concentrate your water use by using
your dishwasher, shower, washing
machine, and toilet at the same time.
All that extra water can really strain
your septic system.
Do:
• Stagger the use of water -generating
appliances. This can be helpful
especially if your system has not been
pumped in a long time.
• Become more water efficient by fixing
plumbing leaks and consider installing
bathroom and kitchen faucet aerators
and water -efficient products.
For more SepticSmart tips, visit: www.epa.gov/septicsmart
44►EI 832-R-13-002 • September 2013