HomeMy WebLinkAboutOWTS Installation Observations 12.28.16
December 28, 2016 Project No. C1192
Bridger Smith
Smith.bridger@gmail.com
Onsite Wastewater Treatment System (OWTS) Installation Observations
4110 CR 243
Garfield County, Colorado
Permit Number SEPT-07-16-4345
Bridger,
ALL SERVICE septic, LLC observed the installation of the onsite wastewater treatment system (OW TS)
on October 3, 2016 for the subject property. Teagle Excavating installed the system.
ALL SERVICE septic, LLC also confirmed the soils on September 15, 2016. A soil profile test pit was
excavated and materials encountered in the Test Pit consisted of light to medium brown loam to silt loam
to a maximum depth explored of 8-feet. No bedrock or groundwater was encountered.
A sample from approximately 3-feet below grade formed a ball and a ribbon less than 1-inch in length
before breaking. The texture was a little more smooth than gritty. The soil structure shape was blocky,
soil structure grade was moderate, and consistence was friable.
STA sizing is based on Soil Type 2, Loam to Silt Loam with moderate structure grade. A long term
acceptance rate (LTAR) of 0.6 gallons per square foot will be used to design the OWTS, in
accordance with Table 10-1 Soil Type 1 presented in the Garfield County On-Site Wastewater
Treatment System Regulations, adopted April 14, 2014.
Profile pit Sieved sample
Test pit
The verification of the soils allowed a slight reduction in the required square footage from 420
square feet to 350 square feet.
A ditch that ran to the west of the soil treatment area (STA) was re-aligned and is located greater than
50-feet from the STA.
The system installation included a new 1000-gallon, two-compartment Valley Precast concrete septic
tank with an effluent filter installed on the outlet tee of the septic tank. This filter must be cleaned
annually, or as needed.
Effluent gravity flows to a distribution box, which is accessible from grade. The STA consists of three
trenches, each with 10 ‘Quick 4’ Infiltrator® chambers for a total of 30 ‘Quick 4’ Infiltrator® chambers and
360 square feet of infiltrative area. Trenches have a minimum of 6-feet of undisturbed soil between
them. Inspection ports were installed at both the beginning and end of each trench.
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 Reviewed By:
Carla Ostberg, MPH, REHS Richard H. Petz, P.E.
Two sewer lines exit the residence, both have double-sweep clean outs
Sewer lines “Y” prior to septic tank
Inlet tee Outlet tee with effluent filter
Distribution box
Sewer line from tank to distribution box Lid must be accessible from grade
Recommended addition of flow equalizers on all outlets
Trenches
Final grading over tank and STA
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Do Your Part, Be SepticSmart:
The Do's and Don'ts of Your Septic System
Learn these simple steps to protect your home, health, envi r onment and property value:
u*'*"#Mbe1Wt+t+
sept1csmart"
U.S. Environmental Protect ion Ag ency
P.r.otect It and Inspect It:
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
Do:
• Eliminate or limit the use of a garbage
disposal.
• Properly dispose of coffee grounds &
food.
sink or flush them . • Put grease in a container to harden
before discarding in the trash.
• Flush non -degradable products or • Dispose of these items in the trash can!
chemicals, such as feminine hygiene
products, condoms, dental floss,
diapers, cigarette butts, cat litter, paper
towels, pharmaceuticals.
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.
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:
• Consult a septic service professional to
advise you of the proper distance for
planting trees and shrubs, depending on
your septic tank location.
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.