HomeMy WebLinkAboutOWTS Installation Observations 07.06.2018ALL
33 Four Wheel Drive Rd
Carbondale, Co 81623
970-309-5259
July 6, 2018 Project No. C1258
Trevor Everett
trevor�7a rnm-eight.corn
Onsite Wastewater Treatment System (OWTS) Installation Observations
Lot 21, Oak Meadows
Garfield County, Colorado
Permit Number SEPT -03-17-4609
Trevor,
ALL SERVICE septic, LLC observed the installation of the onsite wastewater treatment system (OWTS)
on October 13, 2017 and July 1, 2018 for the subject property. Native Excavation installed the system. It
is our understanding that Certificate of Occupancy has been issued by Garfield County and installation
observation documents were necessary ASAP. Please note unfinished components and
recommendations prior to system use.
The installation included a 1500 -gallon, two-compartment concrete septic tank. The effluent filter and
outlet tee had not yet been installed at the time of our July 1, 2018 inspection. A 500 -gallon Infiltrator®
poly pump chamber with an Orenco® ProPak and PF3005 pump was also installed. The pump floats
were set to dose approximately 90 gallons per dose. The control panel was placed within line of sight of
the septic tank (although not mounted at the time of our inspection). We understand Valley Precast out
of Buena Vista was contracted for start-up of the pumping system, but start-up had not occurred at the
time of our July 1, 2018 inspection.
Effluent is pumped through a 1.5 -inch diameter Schedule 40 discharge pipe to an automatic distributing
valve (ADV) Model 6403A. The ADV was placed at the high point of the system and was accessible
from grade. The 1.5 -inch diameter pump line had a minimum grade of 1% for proper drain back into the
pump chamber. The pump chamber was installed very close to the concrete septic tank, and ADV
installed just above the pump chamber. While all minimum criteria appear to have been met, the sprinkler
box allowing access to the ADV extends just above the elevation of the pump chamber, and the ADV has
been placed below the riser. We believe there is the possibility of erosion below the riser and lack of
cover over the top of the pump chamber and sewer line between the concrete septic tank and pump
chamber could increase the chance of freezing. Ideally, the ADV should be moved farther uphill from the
pump line to allow cover over the chamber, sewer line, and pump line, and shallow installation of the
ADV in a proper riser for access with good base support. At a minimum, we recommended that Native
Excavation place Blue Board insulation below and above the sewer line connecting the concrete septic
tank to the poly septic tank. We also recommend putting some support infrastructure below the ADV to
avoid erosion or settling below the sprinkler box riser.
Effluent is distributed to three pressurized, over -excavated 12' x 30' unlined sand filter beds with a
minimum of 2 -feet of ASTM C33 concrete sand. Two rows of 7 Eljen® A42 modules were placed on top
of each sand filter and connected with level 1.5 -inch diameter manifolds. There was 3 -feet of separation
between the side edges of the beds and modules, and 2 -feet of separation between the modules.
Effluent was pressurized through 1.5 -inch laterals, with 5/32 -inch orifices facing UP (12 -o'clock) with the
first and last holes facing DOWN (6 -o'clock) for drainage, 3 -feet on center. Laterals were placed inside
4 -inch diameter perforated SDR 35 pipe (with holes at 4 and 8 o'clock), per Eljen® specifications. Each
1.5 -inch diameter lateral ends in a sweeping ell facing up with a ball valve for flushing. At the time of our
July 1, 2018 inspection, the ball valves were not yet installed. These should be cut to grade and covered
with a valve box for access. Inspection ports were placed in the sand filter material at the corners of
each bed and also may bo cut to grade and covered with a valve box for access. At the time of our
inspection on July 1, 2018, it appeared that one of the inspection ports had been damaged. Care should
be taken to assure there was no damage to the underground infrastructure.
Additional efforts should be made to assure the system installation is complete and operational prior
to use. An additional inspection from this office is strongly recommended. Please call Carla at 970-309-
5259 to request this inspection. At the time of the requested inspection, all recommended repairs and final
installation of all components should be completed.
It appears that the clearance between the septic tank and the rock wall toward the STA was intended for
machine or vehicle traffic. NO TRAFFIC OR STORAGE SHOULD OCCUR IN THE AREA OF THE OWTS.
The underground infrastructure was not intended to support heavy weights and should be revegetated with
native grasses requiring minimal irrigation.
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
C:71;1 ALS
Carla Ostberg, MPH, REHS
Installation of Eljen beds
Reviewed By:
R.„N.-..fi!liRllal lINI Nllak'
x� -I
Placement of filter fabric
Ai::7
Bed installation
northeastern bed buts up to retaining wall
Pump chamher
ADV
Septic tank lids
Clean out (needs to be cut and capped) Septic tank, ADV, and pump chamber
View of beds (flushing valves not installed
Inlet tee
outlet pipe (outlet tee or effluent filter not installed)
Pump chamber with Orecno pumping system
control panel not mounted yet
Sprinkler box over ADV
Note ADV is below elevation of sprinkler box riser
Side of pump chamber has no cover, no cover over sewer line from septic tank to pump chamber, no
cover over pump line from pump chamber to ADV. See recommendations above.
AN UPDATIE
COMPONENTS Ri
ADDITIONALLY. A
THE STA, OM R
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ATI IE TO THE EXISTING DRIVEWAY ARE NOT •ACCURATE. " . {�i2` a -rP •
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Scale: 1" = 10'-0"
ALL
33 Four Wheel Drive Road
Carbondale, Colorado 81623
Phone 970.309.5259
IMO- Carla@allserviceseptic.com
Dockerty / Demoraes Residence
Lot 21 Oak Meadows Subdivision
Garfield County, Colorado
Project Number: C1258
Dale: 07105118
Designed By: CBO
Reviewed By: RHP
Drawn By: ANG
record
Sheet 1 of 1
Garfield eld County
Community Development Department
108 8th Street, Suite 401
Glenwood Springs, CO 81601
Phone (970) 945-8212
KEEP AVAILABLE AT PROJECT SITE
Permit Type Septic - New
Work Classification New
PERMIT # SEPT-03.17-4609Issue Date 6/20/2017 Expiration Date 12/17/2017
Project Address TBD Oakland Knoll Rd. Parcel No. 239522202021
Subdivision Oak Meadows, Filing #2 Lot 21 Section -Township -Range 22-07-87
Owner Name Anthony DeMoraes & Jennifer Dockery Owner Phone 970-379-8754
Owner Mailing Address 42 Haystack Rd., Glenwood Springs, CO 81601
Contractor(s) MM -Eight Construction Contractor Phone 970-230-9082
Work Description:
new OWTS installation for single family residence
Valuation
Square Feet
IMPORTANT: APPLICATION IS HEREBY MADE TO THE BUILDING OFFICIAL FOR A PERMIT SUBJECT TO THE CONDITIONS AND
RESTRICTIONS SET FORTH ON THIS APPLICATION. PLEASE NOTE: Final inspection of the work authorized by this permit is required. A
Certificate of Occupancy must be obtained prior to use and occupancy of new buildings and structures. A Building Permit becomes null and
void if the authorized work is not commenced within 180 days of the date of issuance and if work is suspended or abandoned for a period of
180 days after commencement.
Do Your Part, Be SepticSrrtart:
The Dos and Don'ts of Your Septic System
1 a
Learn these simple steps to protect your home, health, environment and property value:
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.
septicAwj ;r
i:5 rrA(onolen:,i"«,te.zIQr15_eIicy
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 &
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 sante 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 Pfficierrt by fixing
plumbing leaks and consider installing
bathroom and kitchen faucet aerators
and water -efficient products.
For more 5epticSmai t tips, visit: www.epa.govlsepticsmart
fiEFA 832-R-13.002 • Sep?ember 2013