HomeMy WebLinkAboutEngineer's Design ReportI (tA Hiffilfi#;:r:$trnn,"i
*' "
An Employcc Owncd Compony
5020 County Road 154
Glenwood Springs, CO 81601
phone: (970) 945-7988
fax: (970) 945-8454
email : kaglenwood@kumarusa.com
www.kumarusa.com
Office Locations: Denver (HQ), Parker, Colorado Springs, Fort Collins, Glenwood Springs, and Summit County, Colorado
ONSITE WASTEWATER TREATMENT SYSTEM DESIGN
PROPOSED RESIDENCE
1793 COUNTY ROAD 2I9
GARFIELD COUNTY, COLORADO
PROJECT NO. 23-7-190.02
JULY 17,2023
PREPARED FOR:
PUMA PAW, LLC
ATTN: JOHN HILDERBRANT
1793 COUNTY ROAD 2I9
RIFLE, COLORADO 81650
Jh ild erb ra nt42 @smail. co m
TABLE OF CONTENTS
INTRODUCTION..
PROPOSED CONSTRUCTION
SITE CONDITIONS...........
SUB SURT'ACE CONDITIONS
OWTS ANALYSIS
DESIGN RECOMMENDATIONS
SOIL TREATMENT AREA......
OWTS COMPONENTS
OWTS OPERATION AND MAINTENANCE....
OWTS HOUSEHOLD OPERATION
OWTS MAINTENANCE............
OWTS CONSTRUCTION OB SERVATION
LIMITATIONS.
FIGURES
FIGURE 1 - OWTS SITE PLAN
FIGURE 2 _ USDA GRADATION TEST RESULTS
FIGURE 3 - SOI TREATMENT AREA CALCULATIONS
FIGURE 4 _ SOL TREATMENT AREA PLAN VIEW
FIGURE 5 _ SOIL TREATMENT AREA CROSS SECTION
ATTACHMENTS
VALLEY PRECAST 1,OOO GALLON, TWO-CHAMBER SEPTIC TANK DETAIL
TUF-TITE 4-HOLE DISTRIBUTION BOX
I
1
I
1
-2-
1
-J-
................- 6
................- 6
_1
7-
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Kumar & Associates, lnc.Project No. 23.7.190.02
INTRODUCTION
This report provides the results of an onsite wastewater treatment system (OWTS) design for the
proposed residence to be located at 1793 County Road 2I9, Garfreld County, Colorado. The
subject site is shown on Figure 1. The purpose of the report is to provide design details for the
OWTS in accordance with the Garfield County Environmental Health Department Onsite
Wastewater Treatment System Regulations and the Colorado Department of Public Health and
Environmental Regulation#43. The services were performed in accordance with our agreement
for professional services to Puma Paw, LLC dated March 15,2023.
PROPOSED CONSTRUCTION
The proposed residence will be a three-bedroom, one-story strucfure over a walkout basement
located on the lot as shown on Figure 1. The OWTS will be designed for three bedrooms. The
proposed soil treatment area (STA) for the OWTS will be located to the south of the residence as
shown on Figure 1. Water service will be provided by an onsite well approximately 500 feet
north of the residence.
If proposed construction is different than that described, we should be contacted to re-evaluate
our design recommendations.
SITE CONDITIONS
The site was pasture land at the time of our site visit. The terrain is moderately to strongly
sloping to down to the east towards Middle Rifle Creek. Middle Rifle Creek flows towards the
south approximately 100 yards to the east of the proposed home site. Vegetation consisted of
grass and weeds in the pasture area with oak brush, pinyon and juniper in surrounding areas.
The nearby valley sides had Maroon Formation bedrock outcrops exposed.
SUBSURFACE CONDITIONS
The field exploration for the OWTS was conducted on March 16,2023. Two profile pits (Profile
Pits 1 and2) were excavated with a backhoe at the approximate locations shown on Figure 1 to
evaluate the subsurface conditions at the planned soil treatment area for the OWTS. The pits
were logged by a representative of Kumar & Associates. Logs of the profile pits are provided
below.
Log of Profile Pit 1
Depth USDA Classification
0-Y2'TOPSOIL; organic Loam, firm, slightly moist, dark brown.
Y2'-8'SANDY LOAM; moderate blocky structure, stiff, slightly moist to moist, brown.
a
a
a
Disturbed bulk sample obtainedfrom 5 to 6feet.
Bottom of pit @ Bfeet.
No groundwater or redoximorphic features observed at time of pit excavation.
Kumar & Associates, lnc.Project No. 23-7-190.02
Depth USDA Classification
0-Y2'TOPSOI; organic Loam, firm, slightly moist, dark brown
r/2'-8'SANDY LOAM; moderate blocky structure, stiff, slightly moist to moist, brown.
o Bottom of pi.t @ Bfeet.
_:__I{p groundwater or redoximorphic.fegtures observed at time of pit excavation.
.|
-L-
Log of Profile Pit 2
The soils encountered in the profile pits, below about lz foot of organic topsoil, consisted of
Sandy Loam down to the pit depths of 8 feet. Hydrometer and gradation analyscs were
performed on a disturbed bulk sample of the soils from Profilc Pit 1 from 5 to 6 fcct depth with
the results provided on Figure 2. The tested sample (minus No.10 size sieve fraction) classifies
as Sandy Loam per the USDA system. No free water was encountered in the pits nor indications
of seasonal high groundwater were observed at the time of the pit excavations.
Based on the subsurface conditions and laboratory testing, the soils at the STA have been
classified as Type 2 per State regulations, which equatcs to a long-term acceptance rate (LTAR)
of 0.60 gallons per square foot per day.
OWTS ANALYSIS
Based on the site conditions and profile pit evaluations, the evaluated area should be suitable for
a conrrentional infiltration disposal system. There is adequato olovation difference from the
raoirlo-^o ln",^ +^ +L^ Q'f- A f^- ^-^,,:+,, +'l^,,, ^f +L^ ^ff],,^.^+ T'L^ Ct'r'A ...:ll ^^-^i^r ^frlorsvrrlv uvYvrr ru rrrv J l ^ lwl gr4vrrJ rr\Jw \Jl Ll.rg Strwgl gllluglrt. r ltg J I f1- wlrr Lullblli! ul
chambers in a trench configuration based in the Sandy Loam soils. The STA will be sized for
thrcc bcdrooms (six persons) and an average daily flow of 75 gallons per person, and an LTAR
of 0.60 gallons per square foot per day for the natural Sandy Loam soils.
The effluent will gravity flow from the residence to the septic tank for primary trcatment and
then gravity flow to the STA for dispersal and final treatment. The STA will consist of two
trenches with tnfiltrator Quick 4 Plus Standard chambers. Equal distribution will be provided to
the chambers and trenches by a distribution box.
Based on our site observations, the proposed OWTS appears to be outside of any required
setbacks. The route of the planned water supply line to the residence is currently not known, but
appears to be adequately away from the OWTS. The required setback of the water line from the
septic tank is i0 feet, 5 feet for sewer anci eiiiuent iines, ano zs leet lrom the s'tA. Wc shnuiii
be notified for additional recommendations if the waterline is within these minimum setbacks.
DESIGN RECOMMENDATIONS
The design recommendations presented below are based on the proposed construction, the site
and subsurface conditions encountered and our experience in the area. A layout ofthe proposed
OWTS components is provided on Figure l. If conditions encountered during construction are
Kumar & Associates, lnc.Project No. 23.7.190.02
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different than those that are described in this report, we should be contacted to re-evaluate our
design recommendations.
SOL TREATMENT AREA
. The STA will consist of two trenches with22Infiltrator Quick 4 Plus Standard chambers
placed in each trench (44 chambers total) in the native soils. Equal distribution will be
provided to the trenches by a distribution box.
o The STA was sized based on an LTAR of 0.60 gallons per square feet per day.
o Each chamber was allowed 12 square feet of area . A 30% reduction of the STA size was
applied for use of Infiltrator chambers in a trench configuration. The total STA design
size is 528 square feet. Soil treatment area calculations are shown on Figure 3.
o A minimum of four feet of undisturbed soil between the trenches is required.
o The trench cut depths should be a maximum of 3 feet.
o The trenches should be oriented along ground contours to minimize soil cut and cover.
o The base and sidewalls of the trench excavations should be scarified prior to the chamber
placement.
o A minimum of 12 inches and a maximum of 24 inches of cover soil should be placed
over the chambers.
o Backf,rll should be graded to deflect surface water away from the STA and should be
sloped at3 horizontal to 1 vertical or flatter. A swale to divert surface water flow away
from the STA may be needed along the upslope side.
o Disturbed soil should be re-vegetated as soon as possible with a native grass mix. No
trees, shrubs or other plants with deep roots should be planted on or near the STA as this
may damage the system piping.
o Four-inch diameter inspection ports should be installed vertically into the knockouts
provided in the chamber end caps. Install ports at each end of the trench. The inspection
port piping should be screwed into the top to the chambers and should not extend down to
the ground surface inside the chambers. The inspection ports should extend at least
8 inches above the finished ground surface or be protected in a valve box at finished
grade.
. The STA must be a minimum of 5 feet from the septic tank.
o The STA must be a minimum of 25 feet from any potable water supply lines.
. The STA must be a minimum of 20 feet from the residence.
. The STA must be a minimum of 10 feet from any property line.
. The STA must be a minimum of 50 feet from the creek.
o The STA must be a minimum of 100 feet from any well or cistem.
o A plan view of the STA is presented on Figure 4 and a cross section of the STA is
presented on Figure 5.
Kumar & Associates, lnc.Project No. 23-7-190.02
4
OWTS COMPONENTS
Recommended OWTS components provided below are based on our design details and our
experience with the specific component manufacfurers. Equivalent components may be feasible
but need to be approved by us prior to construction.
Septic Tank
o { Valley Precast 1,000 gallon, two-chamber septic tank should be used for primary
treatment. A detail of the tank is provided as an attachment.
o An cffluent filter should be installed in the tank outlet tee.
o The tank must be a minimurn of 5 feel from the residence and STA.
o The tank must be a minimum of 10 feet from any potable water supply lines.
o The tank must be a minimum of 50 feet from the creek.
o The tank must be a minimum of 50 feet from any well or cistern.
o The tank must be set level. The excavation bottom must be free of large rocks or other
objects that could damage the tank during placement. A road base or pea gravel bedding
material may be needed to prevent tank damage during placement and act as a leveling
course.
o The tank lids must extend to final surface grade and made to be easily located.
o Install the tank with2 feet minimum cover soil for frost protection. Maximum tank soil
cover is 4 feet.
Sewer Pipe
I The sewer line to the septic talk shuuld not be less l.han the diameter of the building
drains and not less than 4 inches in diameter.
o The sewer pipe should have a rating of SDR35 or stronger. Schedule 40 PVC pipe is
required beneath any driveway surfaces.
. The sewer pipe should be sloped between 2o/o to 4Vo to help limit disturbance of solids in
the tank and potential sewage bypass of the first chamber of the tank. If a steeper slope is
needed, this can be accomplished with vertical step-downs in the sewer line.
o A minimum 24 inches of cover soil should be provided over the sewer pipe. Paved areas,
patios or other areas without vegetative cover may be more susceptible to frost and we
recommend 48 inches of soil cover over the sewer pipe in these areas, and the pipe be
insulated on top and sides with 2-inch-thick blue foam insulation board. If adequate soil
cover is not possible, we should be contacted for re-evaluation prior to installation.
o The sewer pipe should be bedded in compacted3/+-inchroad base or native soils provided
that the uative suils uulLain no angular rocks or rocks larger than2lL inches in diameter
to help prevent settlement of the pipe. Sags in the pipe could cause standing effluent to
freeze and damage the piping.
Kumar & Associates, lnc.Project No. 23-7.190.02
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Install cleanout pipes within 5 feet of the building foundation, where the sewer pipe
bends 90 degrees or more and every 100 feet of sewer pipe.
All 90-degree bends should be installed using a 90-degree long-sweep or by using two
45-degree elbows.
The sewer line location shown on Figure 1 is considered conceptual. We assume that
there will be only one sewer line exiting the residence. It is the responsibility of the
owner/contractors to locate all sewer line exit locations and connections to the septic
tank. We should be notified if there are other sewer lines exiting the building.
Effluent Transport Piping
o The effluent transport pipe should be 4-inch diameter SDR35 piping sloped at a2Yo
minimum to flow from the septic tank to the distribution box and from the distribution
box to each trench. Piping should extend at least 6 inches into the top knockout provided
in the Infiltrator end caps and be screwed in place. Splash plates should be installed
beneath the inlet piping to help limit scouring of the infiltrative soil surface in the
chambers.
o The effluent transport pipe should be bedded in compacted3/+-inch road base or native
soils provided that the native soils contain no angular rocks or rocks larger than
2/z inches in diameter to help prevent settlement of the pipe. Sags could cause standing
effluent to freeze and damage to the piping.
o A minimum 18 inches of cover soil should be provided over the effluent transport pipe.
Paved areas, patios or other areas without vegetative cover may be more susceptible to
frost. We recommend 48 inches of soil cover over the effluent pipe and insulation with at
least 2 inches of rigid foam insulation in these areas. If adequate cover soil is not
possible, we should re-evaluate the condition prior to installation.
o Schedule 40 PVC pipe is required underneath driveway surfaces and should be provided
with at least 48 inches of soil cover and be insulated on top and sides with 2-inch-thick
rigid foam insulation board.
o All 9O-degree bends should be installed using a 90 degree long-sweep or by using two
45-degree elbows.
Distribution Box
. The distribution box will be used to equally divide effluent flow between the trenches.
We recommend the Tuf-Tite 4-Hole Distribution Box since it is easily accessible from
ground surface for maintenance. A copy of the distribution box detail is provided as an
attachment to this report.
o The distribution box outlet pipes should be equipped with Tuf-Tite speed levelers for ease
of initial setup and adjustment over time.
O
Kumar & Associates, lnc.Project No. 23-7-190,02
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a The distribution box must be accessible from ground surface for inspection and
maintenance per the State guidelines.
The effluent line from the septic tank should be directed downward into the distribution
box with a 9O-degree elbow inside the box.
The distribution box must be installed level on a compacted road base subgrade to ensure
equal effluent distribution. If settlement of the distribution box occurs, unequal effluent
distribution may take place which could cause hydraulic overload of one of the trenches
and potontial failure. Thc distribution box should bc monitorcd pcriodically, and the
speed levelers should be adjusted as necessary for levelling.
The ground surface above and around the distribution box should be graded to drain away
surface water to prevent standing water near the distribution box which could freeze or
oause settlement.
OWTS OPERATION AND MAINTENANCE
a
a
The OWTS will require periodic inspection and maintenance to function properly. A properly
designed, installed and maintained system can greatly increase its lifespan. The level of
maintenance will vary depending on the coinplexity of the system and water use habits of the
residents. We recommend that an OWTS Operation and Maintenance (O&M) Manual be
developed. Depending on the complexity of the system, a contract with an OWTS maintenance
provider may bc prudcnt. Below are some basic recommendations for the OWTS O&M.
OWTS HOUSEHOLD OPERATION
o Use of high efficiency water fixtures is recommended to decrease the hydraulic load on
the OWTS system.
. Fix plumbing leaks immediately as this may cause a hydraulic overload of the soil
absorption system.
o Do not irrigate the area on top of or directly upgradient of the soil absorption field as this
may cause a hydraulic overload.
o Do not dispose of household waste down drains as this may clog or damage OWTS
components. Examples of household waste includes: dental floss, cotton swabs, coffee
grounds, paper towels, feminine products and many other kitchen and bath items.
o Use of kitchen galbage disposals is not recommended. If a garbage disposal is utilized,
kitchen wastewater sirouici be screenecl thoroughly. Many kitchen soiicis are not
decomposed in the septic tank and may cause increased tank pumping frequency.
o Do not dispose of household chemicals, greases, oils, paints, hot tub water or water
softener backwash in household drains. A separate drywell, if feasible, may be necessary
for hot tub water or water softener backwash disposal.
o Limit the use of bleach as this may harm useful bacteria in the septic tank and soil
treatment area.
Kumar & Associates, lnc,Project No. 23.7.190,02
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Liquid dishwasher and clothes washer detergent is recommended for households served
by an OWTS. Clay substances used as fillers in powder detergents may result in
clogging of the soils absorption system
The effluent in septic tanks canfreeze during extended periods of non-use in cold
weather. We recommend that a tank heater be installed in this system to help prevent
freezing.
OWTS MAINTENANCE
o Inspect the septic tank, distribution box and STA at least annually for problems or signs
of failure.
o The effluent filter for the tank should be cleaned at least annually by spray washing solids
into the first chamber of the septic tank.
o The septic tank should be pumped and cleaned every 3 to 5 years depending on use.
Longer pumping intervals may increase the amount of solids that reach the STA, which
may shorten its life span.
o Pumping of the septic tank should take place when the level of the sludge and scum
layers combined take up 25 to 33o/o of the capacity of the first chamber of the tank.
OWTS CONSTRUCTION OBSERVATION
The Garfield County Environmental Health Department requires that the designer of the system
provide a record drawing and certification of the OWTS construction (As-Built inspection).
We should be provided with at least 48-hour notice prior to the installer needing the inspections.
Prior to issuance of our certification letter, we require observation of all system components
prior to backfill. The number of site visits required for the inspection will depend on the
installer' s construction schedule.
LIMITATIONS
We have conducted this design in accordance with generally accepted engineering principles and
practices in this area at this time. We make no warranty either expressed or implied. The
recommendations provided in this report are based on the site conditions, profile pit evaluations
and soil texture analysis, the proposed construction and our experience in the area. Variations in
the subsurface conditions may not become evident until excavation is performed. If conditions
encountered during construction appear different from those described in this report, we should
be notified so that re-evaluation of the recommendations may be made.
This report has been prepared for the exclusive use by our client for design purposes. We are not
responsible for technical interpretations by others of our information. As the project evolves, we
should provide continued consultation and field services during construction to review and
monitor the implementation of our recommendations, and to veriff that the recommendations
o
a
Kumar & Associates, lnc.Project No. 23-7-190.02
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have been appropriately interpreted. Significant design changes may require additional analysis
or modifications to our design.
It is our opinion that the designed location of the OWTS components does not violate any
setback requirements of the current Garfield County Regulations. Below is a table of common
minimum horizontal setbacks to OWTS components. Refer to the Garfield County Regulations
for a complete list of required setbacks. We recommend the OWTS components be surveyed by
a Professional Colorado Land Surveyor.
Tablel-CommonMinimum Horizontal Setbacks from OWTS
Please contact us for any necessary revisions or discussion after review of this report by Garfield
County. If you have any questions, or if we may be of further assistance, please let us know.
Respectfully Submitted,
Kumar & Associates, Inc.
-ffirfuF'r/r'{/a--- , wtr4Jr
Shane M. Mello, StatT
Reviewed
David A. Young,
SMM/kac
Wells
Water
Supply
Line
Occupied
Dwelling
Lined
Ditch
Lake,
Irrigation
Ditch,
Stream
Dry
Ditch or
Gulch
Septic
Tank
STA 100'25',20'10'50'25',t5
Septic Tank 50'10'5',10'50'10'
Buildins Sewer 50')5 0'10'50'10'
Kumar & Associates, lnc.Project No. 23-7-190.02
'I 793 COUNTY ROAD 219
SW ./r SW /r
SECTION 25, T4S, R93W
PROPOSED
VALLEY PRECAST
1,OOO-GALLON,
TWO-CHAMBER
SEPTIC TANK
PROFILE
PIT 1
PROPOSED
TUFTITE 4-HOLE
DISTRIBUTION BOX
PROPOSED SOIL TREATMENT AREA
(sTA) CONSTSTTNG OF 2 ROws
OF 22 INFILTRATOR QUICK4 PLUS
STANDARD CHAMBERS.
(44 CHAMBERS TOTAL)
6
G6dod6
F
"BLM 1990',
=
6{6Lc?
36
SECTION CORNER
FOUND 3.25" ALUM.CAP
w 1/16 CORNER S.25 T4S R93W.
+l-
s 09'1503' E
118.53',
26',13'21',E
sw t/4 sw l/4 91.14'
CORNER
POStTtON
BUILDING
SITE
60'
....
'.P
9^
.:.
VICINITY MAP
oN2.5'PIPE SCALE: 1"=500'
FOUND 3.25" ALUM.CAP ON 2.5"
'BLM 1990'
U200
SCALE- FEET
Fig. 1Kumar & Associates OWTS SITE PLAN23-7 - 1 90.02
'1 ' .ta'\
ErilNrmt
M
HYDROMETER ANALYSIS SIEVE ANALYSIS
21
a5 IVINI'
HRS
MIN
7 HRS!5 MIN
TIME READINGS
60MlN tevtN
U.S. STANDARD SERIES
too
90
ao
70
60
50
ao
5o
20
l0
o
o
to
20
to
40
50
60
70
80
90
too
-
.o19 1.75
OF PARTICLES IN MILLIMETERS
CLAY COBBLES
.002 mm ,02 .05 .l
SAMPLE OF: SANDY LOAM
FROM: PROFILE PIT 1 AT 5 TO 6 FEET
.25 I 2mm 20 76
ENTIRE SAMPLE
GRAIN SIZE
(t-)SIEVE SIZE % FINER
127.00 5 100
10076.00 3
38.1 0 1 -1 /2"lo0
19.05 3/ 4"100
9.50 1/8"99
4.75 #4 99
2.00 #10 95
1.00 #18 95
0.50 #5s E9
0.25 #80 81
0.1 06 41 40 60
0.055 #270 44
PARTICLE SIZE DISTRIBUTION %
COBBLES 0
GRAVEL 5
SAND 51
SILT 51
CLAY 13
PORTION OF SAMPLE
PASSTNG #10 S|EVE
PARTICLE SIZE DISTRIBUTION %
SAND 54
SILT 33
CLAY 15
TOTAL SAMPLE RETAINED ON f10 SIEVE: 5%
PERCENT OF MATERTAL RETATNED ON #10 STEVE
PASSTNG 5/4" S|EVE: 1OO%
NOTE: Hydromeler Anolysis wos parformed on o
bulk sompla followlng screenlng of oll moleriol
lorgar lhon the fl0 sleve (2.0 mm) per USDA
guidelines.
These lesl r€sulls opply only lo lhe
sompl€s whlch w€ro lesled. Tho
losllng r€porl shqll nol bo reproduced,
excspl ln full, wllhoul lh6 wrlil€n
opprgvql of Kumor & Assoclol€s, lnc.
Sleve onolysls lesllng ls p€rformod ln
occordonc€ wlth ASTM 0i122, ASTM C136
ond/or ASTM Dll40.
SILT SAND GRAVEL
FINE co.V. FINE FINE IVEDIUM co.v. co.FINE MEDIUI.4 COARSE
GRAIN SIZE(..)TIME PASSED
(mrn)% FINER
0.037 I 55
0.019 4 27
0.009 19
60
20
170.005
0.002 455 13
0.001 1 545 11
23-7 - 1 90.02 Kumar & Associates USDA GRADATION TEST RTSULTS Fig. 2
OWTS SOIL TREATMENT AREA CALCULATIONS
In accordance wiLh the GarfeH County OWTS Regulatbns and the Cobrado Department of Publb Health
and Environment's Regulatbn #43, the soil treatment area was cabulated as follovus:
CALCULATION OF OWTS DESIGN FLOW:
q = (F)(N)
N = 2 PERSONS PER BEDROOM FOR FIRST 3 BEDROOMS
AND 1 PERSON PER BEDROOM FOR EACH ADDITIONAL BEDROOM
WHERE:
Q = DESIGN FLOW
F = AVEMGE FLOW PER PERSON PER DAY
B = NUMBER OF BEDROOMS
N = NUMBER OF PERSONS
f=
$=
[\=
Q=
75 GALLONS PER DAY
3 BEDROOMS
6 PERSONS
450 GALTONSPERDAY
GALCULATION OF OWTS SOIL TREATMENT AREA:
MINIUMUM TREATMENT AREA = Q + LTAR
WHERE:
Q=
LTAR (SOIL TYPE 2) =
450 GALLONS PER DAY
0.6 GALLONS/FTTDAY
MINIMUM SOIL TREATMENTAREA =750.0 SQUARE FEET
REDUCTION FACTOR FOR CHAMBERS =0.70
MINIMUM SOII TREATMENTAREA WITH REDUCTION =525 SQUARE FEET
AREA PER INFILTMTOR QUICK 4 STANDARD CHAMBER =
TOTAL CHAMBERS NEEDED =
12 SQUARE FEET
44 CHAMBERS
NUMBER OF TRENCHES =
CHAMBERS PERTRENCH =
TOTAT NUMBER OF CHAMBERS AS DESIGNED =
2 TRENCHES
22 CHAMBERS
44 CHAMBERS
TOTAL SOII TREATMENTAREA =s28 SQUARE FEET
23-7 -190.02 Kumar & Associates SOIL TREATMENT AREA CALCULATIONS Fi9. 3
4 INCH DIAMETER
NO N _ PE RFORATE D
SDR35 TRANSPORT
PIPE SLOPED AT
A 2% MIN. DOWN
TO DISTRIBUTION
BOX.
TUF_TITE 4-HOLE
DISTRIBUTION BOX
4 INCH DIAMETER
NON-PERFORATED
SDR55 TRANSPORT
IPE SLOPED AT
A 2% MIN. DOWN
TO TRENCH,
TRANSPORT PIPING SHOULD BE
INSERTED AT LEAST 6 INCHES
INTO THE UPPER KNOCKOUT IN
THE END CAP. INSTALL SPLASH
PLATES BENEATH INLET PIPING
TO HELP LIMIT SCOURING OF THE
INFILTRATIVE SURFACE.
INFILTRATOR QUICK4 PLUS
STANDARD CHAMBERS IN 2
ENCHES. 22 CHAMBERS
PER TRENCH (44 TOTAL)
o
oelF2oz-
z
=
4INCH DIAMETER PVC OBSERVATION PORTS
INSTALLED VERTICALLY INTO THE KNOCKOUTS
PROVIDED lNl EI.ID CAPS. INSTALL PORTS AT
EACH END OF EACH TRENCH. REMOVABLE
LID TO BE PLACED ON TOP OF PIPE. PIPE
MUST STICK UP AT LEAST 8 INCHES ABOVE
FINISHED GRADE OR BE PLACED AT GRADE IN
AN ACCESSIBLE VALVE BOX. PIPES SHOULD
NOT EXTEND TO SOIL SURFACE AND SHOULD
BE SECURED TO CHAMBER WITH SCREWS OR
COUPLINGS TO PREVENT SLIDING DOWNWARD.
INFILTRATOR QUICK4 PLUS STANDARD
END CAP.
10 0 1 0
SCALE_ FEET
Notes;
1. Chambers should be installed level on a scarified ground surface. Concrete sand may be used as a leveling course if
necessary.
2' Care should be taken by the contractor to avoid compaction of the native soils in the trench areas, The base and side walls of
trench excavations should be scarified prior to chamber installation.3 All piping should have a rating of SDR35 or stronger.4. Changes to this design should not be made without consultation and approval by Kumar & Associates.5. Refer to the Garfield County Onsite Wastewater System Regulations for other applicable specifications.
23-7- 190.02 Kumar & Associates SOIL TREATMENT AREA PLAN VIEW fig. 4
lnfiltrator Quick 4 Plus
Standard Chamber
Excavate 36"
Wide Trench
'12" min. 24" max.
Cover Soil Graded
to Deflect Surface
Water
lnstalled Level
ApProx.Existing Ground Surface
Scarify ground surface prior
to chamber placement.
Notes:
1, Chambers should be installed level on a scarified ground surface, Concrete
sand may be used as a leveling course if necessary.
2 Care should be taken by the contractor to avoid compaction of the native soils in
the trench areas. The base and side walls of trench excavations should be
scarified prior to chamber installation.
3. Changes to this design should not be made without consultation and approval
by Kumar & Associates.
1q o 2.5
SCALE- FEET
5
n
ndi
Soil
Between
Native Soil
23-7- 190.02 Kumar & Associates SOIL TRTATMENT AREA CROSS SECTION Fig. 5
{OOO Gallon Top $eam -2CPlbm #
{oooT.2GP
DESIGN NOTES
Design per performonce test per
ASTI,| C1227. Top surfoce oreo 46,25 ftzo fc @ 28 dop; concrete = 6,000 PSI
Min.
instollotion:o Tonk to be set on 5' min. sond
bed or peo grovelr Tonk to be bockfilled uniformly on
oll sides in lifts less ihon 24' ond
mechonicolly compoctedr Excovoted moteriol moy be used for
boekfill, provided lorge stones ore
removedr Excovotion should be dewotered ond
tonk filled with woter prior to beingput in service for instollotlon with
woter toble less thon 2' below groder Meets C1644-06 for resilient
connectorso lnlet ond Outlet identified obove piper Delivered complete with internol
PrPrngr 4' Moximum bury depth
ALLOWABLE BURY
(Bosed on Woter Toble)
WATER TABLE ALLOWAtsLE
FARTH FII I
0'-o'2'- O'
1'- 0"3'- O"
2'-O'3'- 0'
3'- 0"4'- 0'
DRY 4'- 0'
Digging Specs
11' Long x 7' Wide
56" below inlet
ln vert
56"
11
..'. i.l'g,
ChrAccs
T^l{K
.z'
' ----:i---l'
--itta- ..
Top
View
b Gnade
Rubber
Section
Totol
12000 lbs
ID
i
Fleldble
Dimensions
'.'a
Net Weight
Tonk
Sealant
6i 3n
5t in
View
widthth
bs380tb262060"
l
l
Height
68"
; Net Cooocitvir
" i 'lnlet Side Outlet Totol,;
il,' 687 gol 523 sol 1010 gol-1,
1 1
VALLEY
PRtCASflrnc.
Phone: 719€956764
Fax 719€W37n
Webclb: www.vallelryrccastorr
Ennll : fionHesk@nalleyprccastomBuene Vbta, Colorado
Tough Problem
Providing a simple, reliable, and
permanent means for dividing septic
tank effluent flow.
TUF-TITE Solution
A strong, stable, permanent,
non-corrosive Tuf-Tite Distribution
Box, with a Tuf-Tite Speed Leveler
in each outlet.
I lnjection molded HDPE
I Non-corrosive
I Simple to install
I Easy to level
ln a septic environment, no other
material can match High Density
Polyethylene in delivering a lifetime
of trouble-free service, Tuf-Tite
Distribution Boxes are injection
molded, using only premium HDPE
which contains no fillers or foam.
Snap-in pipe seals
They're patented. Simply insert your
PVC pipe and push it through the
flexible, polyethylene Tuf-Tite seal.
Pipes fit watertight. lnstallation couldn't
be easier.
They're permanent
Unlike cement-based pipe grout,
Tuf-Tite seals will not crack or corrode
in septic conditions. They stay pliable
and watertight permanently.
t.
INSTALLATION IS
JUST THIS SIMPLE
1. Position the Distribution Box
on level virgin soil,
Do not place box on a
concrete slab.
2. lnstallthe inlet pipe and
outlet pipes. Be sure the
bottoms of all pipes rest on
vrrgin soil.
3. Levelthe Distribution Box
and all pipes as needed.
4. Backfill the pipes to within
two feet of the Distribution
Box, Recheck the level of the
box, then backfill up to the
top lid ridge.
5. lnstall and adjust Tuf-Tite
Speed Levelers.
6. Place lid on the Distribution
Box and finish backfilling.
Choice of Fittings
S-35 Pipe Seal, for:
I Sewer and Drain
r SDR35 T ASTM 3034
r Thin Wall I 1500 Lb. Crush
S-40 Pipe Seal, for:
I Schedule 40
1 4" Corrugated
P-1 0 Plug, for unused holes
Choice of Lids
Regular Lid. Molded of rugged
HDPE.
lnspection Port Lid. Foreasy
access and inspection. Models
available to accept either 4" or
6" extension plpes.
Tuf-Tite Speed LevelersTM
Control the flow of etfluent from
the Distribution Box. Simply
insert a Speed Leveler into each
outlet pipe. Rotate each Speed
Leveler so the flow is distributed
as desired. Available for 3" or 4"
PVC plpe.
.TUF.TITE'I
Drainage and Septic Products
Tuf-Tite@ Corporation
1200 Flex Court
Lake Zurrch, iiirnors bUU4/
Alull line of
innovations lor
better septic
systerns
@1999 Tuf-Tite@ Corporation
Form 4HD2-3. Printed in USA
t
vl
Drown by SMM
403.3' TO EAST PROP. LINE
t
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WA
WELL
u'eF.-cJ
Dote of Survey October 22, 2023
Dote: December 7, 2O23
PUMA PAW STTE PLAN
1793 Gounty Road 219, Rifle Golorado 81650
Located in the SWl/4 SW1/4 of Section 25, T4S, R93W, 6th P.M., Garlield Gounty, Golorado
NORTH PROPERTY LINE
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Sheet 1 of 1
Proiect No.22-11-11
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Wosotch Survelng Associotes
P.O. Box 564
Frulto, Colorodo 8'1521
Phona No. (970) 659-9270
Fmdil: mdllOudsdlehqrrmvinn eom
eE 02.3' TO NORTH
PROPOSED
DRAINAGE
DITCH 2Z MIN.
PROPERTY LINE
@'o\
€t'+oQ'r
246.8, TO WEST.
to PROPOSED
WATER LINE//
PROPERTY LINE $ --fl
2:1 SLOPE (MlN !tc
PROPOSED HOUSE
FOOTPRINT
(so'x3o')
GUY
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(tlp)
SFORMER,\
POWER
(tvp)
4 CONCRETE
PAD
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BENCHMARK
ELEV: 6287.0'4
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tn?FLOODPLAIN FEMA FIRM INFORMANON
4 Community- Panel Number O8O2O5 0955 B
Map Revised: January 3, 1986
Zone D (Areas of undetermined, but possible, flood hazards)
LEGAL DESCRIPTION'q Account: R085168
Parcel: 192125300034
Secfrbn; 25 Township: 4 Range: 93 A PARCEL OF LAND
SITUATE IN THE SWSW OF SECTION 25, BEING MORE
PARTICULARLY DESCRIBED PER BARGAIN AND SAIE
DEED RECEPTION NO. 985968
40.8 ACRES
PROPERTY ADDRESS
80'
1793 CQUNW RD 219
UNEAR UNIT = U.S. SURVTY F00Tl R|FLE, CO 81650
@ q**
Elt
DETAIL
1"=30'
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