HomeMy WebLinkAboutOWTS DesignlC HHfrffiffiir*ü**
email:
An Employcc Onncd Gompony
5020 County Road 154
Glenwood Springs, CO 81601
phone: (970) 945-7988
fax: (970) 945-8454
kaglenwood@kumarusa.com
www.kumarusa.com
OlÍcc Locetione: Dcnvcr (HQ), Parkar, Colondo Sprlngs, Fort Collins, Glcnwood Springs, and Summlt County, Colorado
ONSITE WASTE\ilATER TREATMENT SYSTEM DESIGN
PROPOSED EAKER RESIDENCE
LOT 4, FILTNG I, ASGARD SUBDTVTSTON
TBD COUNTY ROAD 2ó6
GARFIELD COUNTY, COLORADO
PROJECT NO. 21-7-212.02
APRIL t9,2v2t
PREPARED FOR:
ANDREW EAKER
3925 APPLEWOOD STREET
GRAND JUNCTTON, COLORADO 81s06
@
TABLE OF CONTENTS
INTRODUCTION
PROPOSED CONSTRUCTION .
SITE CONDITIONS,...
SUBSURFACE CONDITIONS
OWTS ANALYSß
DESIGN RECOMMENDATIONS .
SOIL TREATMENT AREA..
OWTS COMPONENTS
OV/TS OPERATION AND MAINTENANCE.
OWTS HOUSEHOLD OPERATION
OV/TS CONSTRUCTION OBSERVATION
LIMITATIONS
FIGURES
FIGURE 1 _ OWTS SITE PLAN
FIGURE 2 _ USDA GRADATION TEST RESULTS
FIGURE 3 _ SOIL TREATMENT AREA CALCULATIONS
FIGURE 4 _ SOIL 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
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Kumrr & Aeroclatcr, lnc.Prdoct No. 2l-7-212.01
INTRODUCTION
This report provides the results of an onsite wastewater treatment system (OWTS) design for the
proposed Eaker residence to be located on Lot 4, Filing l, Asgard Subdivision, TBD County
Road 266 (Asgard Creek Road), Garfield County, Colorado. The purpose of the report is to
provide design details for the OWTS in accordance with the 2018 Garfïeld County
Environmental Health Department Onsite Wastewater Treatment System Regulations and the
Colorado Department of Public Health and Environmental Regulation #43. The services were
performed as part of our agreement for professional services to Andrew Eaker dated
February 17,2021.
PROPOSED CONSTRUCTION
The residence will be a single-family structure located on the lot as shown on Figure 1. The
residence will be tlree-bedrooms and constructed over a crawlspace. The OV/TS will be
designed for a total of 3 bedrooms. The proposed soil treatment area (STA) for the OWTS will
be located to the south of the residence as shown on Figure l. Water service is provided by an
onsite well to the east of the proposed residence as shown on Figure l. The route of the water
supply line from the water valve to the residence has not been designed at the time of this report.
If proposed construction is different than that described, we should be contacted to re-evaluate
our design recommendations.
SITE CONDITIONS
The lot is a mostþ vacant, irigated field. Some equipment and trailers are stored along the
westem fence of the lot. The terrain is gently sloping down to the southeast at grades from about
5 to 7Yo. A piped inigation ditch trends along the west property line and a piped irrigation lateral
is along the north property line. On the neighboring property to the south, there is an irrigation
pond outside of setbacks to the proposed STA. The onsite water supply well is located in the
east portion of the lot, see Figure l. Vegetation consists of hay grass.
SUBST]RX'ACE CONDITIONS
The field exploration for the OWTS was conducted on March 25,2021. Two profïle pits (Profile
Pits 1 and2) were excavated with a mini-excavator at the approximate locations shown on
Figure I 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.
Kumar & Assoclelos, lnc.ProJcct No. 21 -7-21 2.02
Depth USDA ClassÍlication
o-tA'TOPSOIL; organic Loam, firm, moist, brown.
Yz t 7'LOAM; moderate blocþ structure, stifl slightly moist, light brown to brown.
o
o
o
Disturbed bulk sample obtainedfrom 3 to 4 feet.
Bottom of pit @ 7 feet.
No groundwater or redoximorphic features observed at time of pit excavøtion.
-2-
Log of Profile Pit I
Log of Prolite Pit 2
The soils encountered in profile pits, below about r/zfoot of organic topsoil, consisted of stiff
Loam doyvn to the pit depths of 7 feet. Hydrometer and gradation analyses were performed on a
disturbed bulk sample of the soils at Profile Pit I from 3 to 4 feet depth with the results provided
on Figure 2. Thç tested sample (minus No.l0 size sieve fraction) classifies as Loam per the
USDA system. No free water was encountered in the pits nor indications of seasonal high
gtoundwater were observed at the time of the pit excavations.
Based on the subsurface conditions and laboratory testing, the soils at the STA have been
classifìed as Type 2 per State regulations, which equates 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 conventional infiltration disposal system. There is adequate elevation difference from the
proposed ground floor of the residence down to the STA for gravity flow of the sewer effluent.
The STA will consist of chambers in a trench configuration based in the Loam soils. The STA
will be sized for three bedrooms (six persons) with an average daily flow of 75 gallons per
person and an LTAR of 0.60 gallons per square foot per day for the natural Loam soils.
The effluent will gravity flow from the residence to the septic tank for primary treatment and
then gravity flow to the STA for dispersal and final treatment. The STA will consist of two
Depth USDA Classifïcation
0-Y2'TOPSOIL; organic Loam, firm, moist to slightþ moist, dark brown.
Y2 )7'LOAM; moderate blocþ structure, stiff to very stiff, slightly moist, light brown to
brown.
a
a
Bottom of pit @ 7 feet.
No groundwater or redoximorphíc features observed at time of pit excavation.
Kumar & As¡oclates, lnc.ProJect No. 2l-?-212.0?
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trenches with Infiltrator Quick 4 Plus Standard chambers. Equal distribution will be provided to
the chambers and trenches by a distribution box.
A 50 feet minimum setback is required for the STA from the pond located to the south of the
STA on the neighboring lot. The route of the planned water supply line to the residence is
currentþ not known, but appears to be adequately away from the OV/TS. The required setback
of the water line from the septic tank is 10 feet, 5 feet for sewer and effluent lines, and 25 feet
from the STA. We should 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
O\MTS components is provided on Figure 1. If conditions encountered during construction are
different than those that are described in this report, we should be contacted to re-evaluate our
design recommendations.
SOIL TREATMENT AREA
o The STA will consist of two trenches withZ2lnfiltrator Quick 4 Plus Standard chambers
placed in each trench (44 chambers total) based 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 feetper day.
o Each chamber was allowed I 2 square feet of area . A 30% reduction of the STA size was
applied for use of Infïltrator chambers in a trench configuration. The total STA design
size is 528 square feet. Soil treatment arça calculations are shown on Figure 3.
r A minimum of four feet of undisturbed soil between trenches is required.
o Trench cut depths should be a maximum of 3 feet deep.
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 Backfill should be graded to deflect surface water away from the STA and should be
sloped at 3 horizontal to I vertical or flatter. A swale to divert surface water flow away
from the STA may be needed along the upslope side.
Kumu & A¡¡oclrter, lnc.Projoc{ No. 21-7-212.02
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¡ 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 diamoter inspection ports should be installed vertically into the knockouts
provided in the chamber end caps. tnstall 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 ground
surface.
o The STA must be a minimum of l0 feet from any property line or piped irrigation ditch
or lateral.
o The STA must be a minimum of 5 feet from the septic tank.
r The STA must be a minimum of 25 feet from any potable water supply lines.
o The STA must be a minimum of 20 feet from the residence.
r The STA must be a minimum of 50 feet from any pond,
o A plan view of the STA is presented on Figure 4 and a cross section of the STA is
presented on Figure 5.
OWTS COMPONENTS
Recommended OWTS components provided below are based on our design details and our
experience with the specific component manufacturers. Equivalent components may be feasible
but need to be approved by us prior to construction.
Septic Tank
r A 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 effluent fìlter should be installed in the tank outlet tee.
o The tank must be a minimum of 5 feet from the residence. The tank must be a minimum
of 10 feet from any potable water supply lines.
¡ 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 gravel bedding
material may be needed to prevent tank damage during placement and act as a leveling
course.
r The tank lids must extend to final surface grade and made to be easily located.
e Install the tank with 2 feet minimum cover soil for frost protection. Maximum tank soil
cover is 4 feet.
Kumar û A¡¡oclrtcs, lnc.ProJoct No. 2l-7-212"02
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Sewer Pipe
o The sewer line to the septic tank should not be less than 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.
o The sewer pipe should be sloped between 2o/o to 4Yo grade 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 areaso
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 pipes should be bedded in compacted %-inch road base or native soils
provided that the native soils contain no angular tocks or rocks larger thanT% inches in
diameter to help prevent settlement of the pipe. Sags in the pipe could cause standing
effluent to freeze and damage the piping.
¡ Install cleanout pipes within 5 feet of the building foundation, where the sewer pipes
bend 90 degrees or more and every 100 feet of sewerpipe.
r All 90-degree bends should be installed using a 9O-degree long-sweep or by using two
45-degree elbows.
o The sewer line location shown on Figure I is considered concepfual. We assume that
there will be only one sewer line exiting the residence. It is the responsibilþ 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 efTluent transport pipe should be 4-inch diameter SDR35 piping sloped aI a2%o
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 infïltrative soil surface in the
chambers.
Kumar & Ag¡oclater, lnc.Projoct No. 21 -7-21 2.02
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o The effluent transport pipe should be bedded in compacted%-inch road base or native
soils provided that the native soils contain no angular rocks or rocks larger than
ZVzinches in diameter to help prevent settlement of the pipe. Sags could cause standing
effluent to freeze and damage to the piping.
o A minimum l8 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 recoûrmend 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.
. Schedule 40 PVC pipe is required underneath driveway sutfaces 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.
r All 9O-degree bends should be installed using a 90 degree long-sweep or by using two
45-degree elbows.
Distribution Box
o 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 The distribution box should be a minimum of 18 inches below grade with risers and an
access lid at or above grade.
o The distribution box must be accessible from ground surface for inspection and
maintenance per the State guidelines.
o The effluent line from the septic tank should be directed downward into the distribution
box with a 90-degree elbow inside the box.
r 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 efiluent
distribution may take place which could cause hydraulic overload of one of the trenches
and potential failure. The distribution box should be monitored periodically, and the
speed levelers should be adjusted as necessary for levelling.
o 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
cause settlement.
Kumer & A¡¡oclrto¡, lnc.ProJect No. 2l-7-212.02
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O}VTS OPERATION AND MAINTENANCE
The OV/TS will require periodic inspection and maintenaûce to function properþ. A properly
designed, installed and maintained system can greatly increase its lifespan. The level of
maintenance will vary depending on the complexity of ttre 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 OV/TS maintenance
provider may be prudent. 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 OV/TS system.
o Fix plumbing leaks immediately as this may cause a hydraulic overload of the STA.
o Do not irrigate the area on top of or directly upgradient of the STA 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 ìtems.
o Use of kitchen garbage disposals is not recommended. If a garbage disposal is utilized,
kitchen wastewater should be screened thoroughly. Many kitchen solids 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 fub 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
absorption system.
o Liquid dishwasher and clothes washer detergent is recommended for households served
by an OV/TS. Clay substances used as fìllers in powder detergents may result in
clogging of the soils absorption system.
OV/TS 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.
Kumar & Associatc¡, lnc.ProJcct No. 21-7.2T2.02
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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.
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 Garfïeld County Environmental Health Department requires that the designer of the system
províde a record drawing imd certifìcation 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 certifïcation 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
reçommendations 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 flom 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 fìeld services during construction to review and
monitor the implementation of our recommendations, and to veriff that the recommendations
have been appropriately interpreted. Signifïcant 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 t¿ble of common
minimum horizontal setbacks to OV/TS 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.
Kumm & A¡goclatcr, lnc.ProJcct No. 2t-7-212.02
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T¡ble I - Common Mlnlmum Horlzont¡l Setb¡cks from O\S
Please conùaot us for any necessary revisions or discussion after review of this rcport by Garfield
County. If you have any questions, or if we may be of ñ¡rther assistancg please let us know.
Respectfidly Submifred,
Kumar &
M. Mello, StaffEngineer
Reviewed by:
David A. Yonng, P
SMM/kac
Wells
TV¡ter
Supply
Llne
Occupled
Dwelllng
Lhed
Dltch
Lake
Irrlgedon
Dltch,
She¡m
Dry
Dttch
ot
Gulch
Septlc
T¡nk
STA 100'25',20'l0'50'25',5'
Sepdc T¡nk 50'l0't5 l0'50'l0'
Bulldlng
Sewer 50't5 0'10'50'l0'
Kumar & Associates, lnc.Project No. 21 -7 -212.02
COUNTY ROAD 266
PROPOSED VALLEY PRECAST
1,500 GALLON TWO
CHAMBER SEPTIC TANK
CLEANOUT
PROPOSED3 BEDROOI¡
TUFTITE 4-HOLE
DISTRIBUTION BOX
PROPOSED SOIL TREATMENT
AREA (STA) CONSTSTTNG OF2 ROWS OF 22
INFILTRATOR QUICK4 PLUS
STANDARD CHAMBERS (44
CHAMBERS TOTAL)
LOT 4, ASGARD SUBDIVISION
WELL
21-7-212.O2 Kumar & Associates OWTS SITE PLAN Fig 1
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OWTE SOII TREATMENT AREA EATEULATIONS
In aeeordanee wth the GarFeld eounty OWTS Regulatbns and the eobrado Department of tublie Health
and EnvÍonment's Regulatþn #43, the soiltrcatment arca uas eahuÞted as foþws:
cAl.€U]!-AH9 N_ O F 9-$frs. ÐesI€N F [ÇWr
e = (FXN)
N = 2 PERSCINS PER BEDRCIOM
WHERE:
Q = DESIGN FIOW
F = AVERAGE FIOW PER PERSON PER DAY
B = NUMBER OF BEDROCIMS
N = NUMBER OF PERSONS
75 GAIIONS PER DAY
3 BEDROOMS
6 PERSONS
450 GALTONS PER DAY
þ=
$=
N=a-
9ALCULATTON OF OWTS SOIL TREATMEl{T AREA:
MIN¡UMUM TREATMENT AREA = Q + LTAR
WHERE¡
Q=
LTAR (SOIL TYPE 2) =
MINIMUM SOIL TREAIMENT AREA =
REDUCTION FACTOR FOR CHAMBER.S =
MINIMUM SOII TREAT!4ENT AREA WITH REDUCTION =
AREA PER INFITTRATOR QUICK 4 STANDARD CHAMBER =
TOTAL EHAMBERS NEEDED =
NUMBER OF TRENCHES =
CHAMBERSPERTRENCH =
TOTAL NUMBER- oF CHAMBERS AS DESIGNED =
TOTAL SOIL TREATMENTAREA =
750.0 SQUARE FEET
a,7a
s25 SQUAREFEET
12 SQUARE FEEI
44 CHAMBERS
2 TRENCHES
22 CHAMBERS
44 EHAMBERS
528 SQUAREFEET
45O GAIIONS PER DAY
0.6 GALLONS/Fr7ÐAY
21-7-212.02 Kumar & Associates SOIL TREATMENT AREA CALCULATIONS Fî9. 3
4 INCH DIAMETER PVC OBSERVATION PORTS
INSÏALLED VERTICALLY INTO THE KNOCKOUTS
PROVIDED IN END CAFS. INSTALL PORTS AT
EACI{ END OF EACH TRÊNCH. REMOVABLE
LID TO BE PLACED ON ÏOP OF PIPE. PIPE
MUST STICK UP AT LEAST 8 INCHES ABOVE
FINISHED GRADE OR BE PI¡CED 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 CHAMBERS IN 2
TRENCHES. 22 CHAMBERS
PER TRENCH (44 TOTAL).
LTRATOR QUICK4 PLUS STANDARD
END CAP.
TRANSPORT PIPING SHOULD BE
INSERTED AT LEAST 6 INCHES
INTO THE UPPER KNOCKOUT IN
THE END CAP. INSTALL SPI.ASH
PI.ATES BENEATH INLET PIPING
TO HELP LIMIT SCOURING OF THE
ÍNFILTRATIVE SURFACE.
4 INCH DIAMETER
NON-PERFORATED
SDR55 TRANSPORT
PIPE SLOPED AT
A 2X MIN. DOWN
TO DISTRIBUÏION
BOX.
TUF-TITE
4-HOLE
4 INCH DIAM
IBUTION
BOX
NON-PERFORATED
SDR35 TRANSPORT
PIPE SLOPED AT
A 2X MIN. DOWN
TO TRENCH.
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 lrench areas. The base and side walls of
trench excavalions 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 2018 Garfield County Onsite Wastewater System Regulations for other applicable specifications.
21-7-212.A2 Kumar & Associates SOIL TREATMENT AREA PLAN VIIW Fig. 4
Excavate 36"
Wide Trench
lnfiltrator Quick 4 Plus
Standard Chamber
lnstalled Level
12" min. 24" max.
Cover Soil Graded
to Deflect Surface
Water
Approx. Exist¡ng 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.
SCALE-FEET
Native Soil
Soil
Between
5
21 -7 -212.02 Kumar & Associates SOIL TREATMENT AREA CROSS SECT]ON Fig. 5
{OOO Gallon Top Eeam -ZGPl¡ml
10100|f,-!Gt
11 Top
Mew
DESGN NOTESo Dcolgn pcr pcrfomronce tcst pcr
AStt c1227
'rJ¡-l'
. Top surfqcc orco ,[6.25 ftt¡ fc O 2E dq6 concrctc - 6,000 PSI
Mln.
lngtallotlon:o Tonk to bc ¡ct on 5' mln. sond
bed or pcq grovd¡ Tonk to bc boc*flllcd unlformly onqll sldcc tn ltftc lcss thon 2d ond
mccùonlcolly compoctcdo Excqwtsd motcriql moy be u¡sd for
bockfill, provldcd lorge ttonca ore
rcmovrdo Excovotion dror¡ld bc dcwotcred ond
tonk fllled wlth wqtcr prlor to bclngput ln acrvlcc for lnstollotlon wlth
wotcr toblc ls¡s than 2' bclow grodcr Meeta C1644-06 for rcslllant
conncctorgo Inlct ond û¡tlct idcntificd obow pipe¡ Ddlwrcd completc wlth lntemol
plplns¡ C Moxlmum bury dqth
cr
t-
:.; lttx rjDì1. .. -i
bffi
Flodbb RåËlrSlrffi
ALLOWABLE BURY
(Boscd on llotcr Toblc)
WATER TA8I.E AIIOWAEI.E
EARTH NIl
0'- o'2'-t
1'- 0'3'- O'
2'-0.J'- or
J-d 4.-d
DRY 4.-d
Secdon
r¡o Mqv
Dlgglng Specs lnwrt Dlmenslons Net Copoclty Nct Welght
11' Long x 7' l{ide
56' below lnlct
Length width Height Side Outlet Totol L¡d Tonk Totol
56'55'111'ôo'66'6E7 gol 323 gol lO10 gol 2620 lbs 95E0 lbs 12000 lbs
1
Ffpnr¡ ?fght0Ëiarcltu 7tg.ffirtÍrt
UrËrlh www.nds!¡pud.cnËlrl:
"#.TUt.TlT[.4 -Hole Distribution Box
lbugh Proöþrr
P¡ovfttng r ltnple, re8ablâ, and
ponnürcnt rTþsn fu dvlding æptic
bkefllusrtfou.
IUF-ITÍE Soluüon
A !üo¡gi st¡blo, pomandì|,
non-comriw Tuf -Tile Dlrül butlon
Boq wlü aTul-T¡to Spoed Lôrrolor
in o¡ch ouüet.
I lnjection moldod HDPE
I Non-conoeive
I Simpleto install
I Easyto þìr€l
ln a septic envinonment, no other
materialcan match High Denslty
Polyethylene in delivering a lilatime
of trouble-free sen¡ice. Tuf-Tte
Distribution Boxes are injection
molded, using only premium HDPE
which contains no fflle¡s orbam.
Snap-in pipe seals
They're patented. Simply insert your
PVC pipe and push it through the
flexible, polyethylene Tuf'ïte seal.
Pipes fit watertight. lnstallation couldn't
be easier.
They'rc permanent
Unlike cement-basod pipe grout,
Tuf-ïte seals will not erack or conode
in septic conditions. They stay pllable
and watertight permanently.
I I:":,.TlltTITE.4-Hole D Box 4HD2
f Hrcüon moldrd.
Exoc¡üotdli
rüotf.
I HDPEbnon-
oort¡tu¡
ln rrpillc
rillnmant.
I Prhtrt¡rlrnrp-h
plpcnb
rlndlfy
ln$dHon.
INSTALI.ATION IS
JUSTTHIS SIMPLE
l. Positlon tho Dlstrlbution Box
on levelvirgln soll.
Do not Blaoc box on r
conorrtr ¡lrb.
2. lnstallthe lnlet pipe and
outlet pipas. Be suro the
bottoms of all pipes rest on
vlrgln soll.
9. Levelthe Dlstribution Box
and all plpes as need€d.d Bacldlllthe plpes to wlthln
two bet of the Distrlbutlon
Box. Recheck the levol of the
box, then baekffll up to tho
top lld ridge.
5. lnstall and adlust Tuf-ïto
Spæd Levolers.
6. Place lid on the Dlstrlbution
Box and llnlsh backfllllng.
2'Drop
s€t S-lO
F-l0
Choico of Flttingr
S-96 Pipc Scsl, for:I Sewrand Dnain
rsDR35 lASTu3034I ïhin Wall I 15001,!. Ctu$t
S-{0 Plpc Scrl, for:I Schedulo 40I 4" Conugated
P-10 Plug, for unused holæ
I
Cholce of Llds
Rcgular Lld. Molded of rugged
HDPE.
ln¡pcction Port Lid. For easy
acæss and lnspeclion, Modds
available to accspt either 4" or
ô" ortension plpes.
lüt doofh¡Ud" tlrvy¡tluty
HDPE Ud lr rlbb.d lbr.ddd
!ücneü üd rlEldlty, 9lolbd
*hrhtarþc*onütr
Dhülh¡üon Boxlorsjnr
tlcrtüI.
fh¡¡[Hln DhiHbutlon Bo(
coÍtr¡ compþbwlth I
Rrgub Lid or lt ln¡pcatiqt
PatLH, rrul ırnrp-ln
lltllnçof youdrolo.
lld.lEl il¡¡r. For¡ulco
Bl Box. StrcklbbHDPE
Rlsr.xt ndtogndoln6'
incnmorìb. AÊept f 1" x 11o
llüTÉgntG.
TUÍ-Tlta Spe¡¿ Lovelonrn
Contrcl tTro flow of efiluent ftom
lha Distdbution Box, Slmply
insert a Speed Levclsr into each
outlet pipo. Rotate each Sp€€d
Levalu so the flow ls dlstflbut€d
æ dæimd, Available for 3" or 4"
PVO plpa.
ln
1
- r '=---a-
'*t:r.TUf.TlTE't;*Á lt¡llhr ol
hnourlfon¡ fur
ö.tt*rytloffiitt
llrainago and Snptie Fradu¡;to
Tuf"ïite€ &;rperatl*n
1200 Flox 0ourt
Lake Zurlct, lll¡nolo 00047
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OIS€0 TVl.TteO Coe,o{athn
Fom 4HD2'9, Ptint€d h USA