HomeMy WebLinkAboutEngineer's Revised OWTS Design Plan (Major Repair)ONK A0. Box 140
Reliable Septic Solutions ov
„��►1�n-lax)-orrkl+`oinfook.com
Reviewed By:
Tim Copeland
935 Hickory Drive
Rifle CO 81650API
"' c "• `
$� •'..•s
(970) 309-9020
septicclesignplans@)gmail.com +_
n 61140
March 25, 2026 s.,�•.w��,r;�`
Kachayla Renee Schroeder, P.E.
Darryl Queen, Colorado License No. 61440
Soil Analysis and OWTS Design for 3724 County Road 214, Peach Valley
Acres, (Parcel # 217901304011) Silt CO 81652, Garfield County. 2 acre lot.
Replacement septic system.
PROPERTY DESCRIPTION AS IT PERTAINS TO THE SEPTIC SYSTEM
This property has 2 buildings that feed to the system. There is a 3 bedroom
house and a shop building with potentially 2 bedrooms.
The property currently has an existing 1000 gallon septic which will be
crushed in place and filled with native material or removed completely. The
existing soil treatment area (STA) will be abandoned.
The proposed STA area will be in a field East of the current house and South
of the shop building. The proposed STA is currently covered with naturally
occurring grasses. The proposed STA has a slight slope away to the S.
TEST PITS AND SOIL ANALYSIS
The test pits were excavated on March 13th 2026. 2 test pits were excavated
near the proposed STA, and an evaluation was performed by Tim Copeland,
who holds a Certificate of Completion from the CPOW Visual and Tactile
Evaluation of Soils Training.
1
E
Test pit #1.
0"-8" dark, sandy loam top soil, granular moderate; USDA type 2
8"-42" light brown, sandy clay loam, prismatic moderate; USDA type 3
42"-50" grey, 3/4" to 2" rocks, USDA type R
50"-96" light brown, sandy clay loam, prismatic moderate; USDA type3
Test pit #2.
0"-12" dark sandy loam top soil, granular moderate; USDA type 2
12"- 72" light brown, sandy clay loam, prismatic moderate; USDA type 3
72" - 84" grey, 3/4" to 2" rocks, USDA type R
84"-96" light brown, sandy clay loam, prismatic moderate; USDA type 3
The STA will be placed in the vicinity of soil evaluation of test pit #2 to avoid
the shallow R-type soils located near trench test pit #1. The infiltrative surface
will be placed at a maximum depth of 36" to provide the required 36" vertical
separation from pressurized distribution to the limiting layer. Soil type 3/LTAR
will be used in sizing calculations
Design calculations
5 bedrooms total: 150 gallons per day for all 5 bedrooms because the
primary house has 3 bedrooms with a possibility of 2 more bedrooms in the
2nd building a secondary dwelling. 750 gal per day and a native soil type of
3, LTAR =0.35
750 gal. per day / 0.35 gal. per day per SF =2143 SF
Adjustment factors
2143 SF k 0.8 pressure dose trenches x 0.7 chambers =1201 SF
1201 SF / 12 SF per unit =101 units minimum or 404 ft of trench (round up units
to 102 units make each line equal length). 6 trenches with 17 Infiltrator per
trench.
System Components
3
2000 gallon 2 compartment septic tank
Valley Precast concrete 2 compartment
septic tank, model 2000 t-2cp
STA chambers
Standard quick 4 infiltrator or equal
Orenco PVC riser and 24" Poly lid
4" SDR 35 sewer pipe from house to the
septic tank and between tanks
2" sch 40 pipe from pump to STA and
20.0 gal. of storage in pressure main min. 1%
manifold
drainback or bury 36" min. BGS to prevent
freezing.
1.5" sch 40 laterals w/ 5/32" orifices spaced
48" o.c. hung inside of infiltrator
Orenco pump package with Orenco pump
200 gal. dose volume, 4 doses/day at max.
PF5005 HH effluent pump package
usage.
Total Dynamic Head =19.3'
Design Flow Rate 56.9 gal/min.
4" SCH 40 sewer pipe
Installation
There will be a double sweep tee cleanout near the house and 2% min.
grade to the septic tank. The Orenco pump package will be installed
in the 2nd chamber of the septic tank. Risers will be used to bring all
lid openings to grade.
Install pump into pump tank including a weep hole for drainage and
prevent siphon. 2' schedule 40 pipe shall be run from the pump to the
manifold and STA. 1-1/2 " sch 40 pipe with 5/32" holes drilled up at 4'
on center shall be installed in the infiltrators and hung with zip ties. At
the beginning and end of each lateral, orifices shall be drilled facing
down. A flushing valve assembly will be at the end of each run. A
separate inspection port will be installed at the beginning and end of
each run.
4
The STA will consist of 6 runs. Each run will have 17 Infiltrator and each
trench will be separated by 4' minimum of undisturbed soil.
The trench shall be a maximum of 36" deep to provide the 36" of
vertical separation from a pressurized distribution to the limiting layer.
Cover shall consist of 1' min. of soil on top that is capable of supporting
local vegetation.
All required offsets as described below shall be met:
Spring
Potable
Structure
Structure
Property
Intermittent
Lake,
31-1:1V
Septic
well
water
w/
w/o
line,
drainage
water
cut
tank
cistern
line
crawispace
crawlspace
piped
course,
slope
irrigation
irrigation
ditch
Septic
50
10
5
5
10
10
50
10
-
&
dosing
tank
sewer
50
5
0
0
10
10
50
10
-
effluent
lines
FSTA71100
25
20
10
10
25
50
25
5
Operation and Maintenance
The residents of the property should not put grease in the sink or flush
"flushable" wipes, they will reduce the life of the system. The system
should not have the water softener discharge into the OWTS.
5
The property owner is responsible for having the tanks maintained
(pumped and filters cleaned (ideally the filters should be cleaned
annually) ). Vehicles and heavy equipment shall not be driven over or
parked on the leach field.
High and low level alarms will have visual and audio notifications.
Installation Observation Request
Reliable Septic Solutions must view and accept the OWTS components
after they are installed but before they are backfilled. All OWTS
construction must be in accordance with the county regulations.
Please call with any questions
Sincerely, Tim Copeland
O
co
r
N
ry
CU
N
ti
M
N
CM
I — (M
a
a
OL m
O
O
ON O
tli
y
W O V1
D
» O
N
o.
y
0 e-
N
C9
It
N (0 n a0
+.1
N co
_
c0
a a
N
a@
CL
N
N fV
y
O
0 0
0-
0
�
v
cp
j
ch
a
co
n ao
N
N
Y
CM
Q
�O
cn
i
Q
O
0
cv
Cf)
>
r
7
Items 2000 Callan Top Seam - 2CP
a w-2w
DESIGN NOTES
• Design per performance test per ASTM
C1227
• Top surface area 57.75 ft'
• Pe ® 28 days; concrete = 6,000 PSI
Min.
Installation,
• Tank to be set on 5" min. sand bed or
pea gravel
• Tank to be backfilled uniformly on all
sides in lifts lose than 24" and
mechanically compacted
• Excavated-aiedol may be used far
backful, provided large stones are
removed
• Excavation should be dewotered and
tank filled with water prior to being put
In service for Installation with water
table less than 2' below grade
• Meets C1644-06 for resilient connectors
• Inlet and Outlet Identified above pipe
• Delivered complete with Internal piping
• 4' Maximum bury depth
ALLOWABLE BURY
(Based on Water Table)
WATER TABLE
ALLOWABLE
EARTH FILL
0'-0'
3'-0"
1'-0"
3'-0-
2' — 0"
3'-0'
4'_0•
DRY
4' — 0'
Digging Specs
15' Long x 8' Wide
yI � CIWA�
TANK II f•
.-..-7
Top View
F4 P - lo films
— 157'
swwn View
Invert Dimensions Net Capacity
Inlet Outlet Length Width Haight Inlet Side Outlet Total
Net Weight
Lid Tank Total
56' below inlet 56' 53" 162" 78" 68" 1559 gal 507 gal 2066 gal 5420 Ibs 15530 Ibs 20950 Ibs
"
a EY �ayes=A, fte. wombw ►MIS.
,,, Buono vista, Cvl=Ao &nWk
8
Double Walled PVC Riser & Lid Options
Poly Lid
(Static load tested tD 5000 Ibs)
• sad malstmca surface
• Available In green
• Highest Isvel of W Protection Included
• Includes a foam gasket for aMlght and
Includes square drive screws tD disoourape
unauthorized entry 2' of Insulation
o Insulation panels achleve R-10 IrmAstion rating Standard
Double Walled PVC Riser
• Available In 24' and 30' Dlarrretar
• Cut to length
• Sold in +/- 2' Increments
• Must be cut between ribs
Fc)PRECAST,
ALLEY
im.
BUO= Vim, CoJbv U"
Crenoo ® DuraFiberim Access Lids (FLD)
Not r000nwnended for vehicular tuft
Zr and 30' Dlarnsis s
• Solid, min -infused fiberglass cons#uction
• 20,OOO4b breaking strength
• Standard groan or brown colas
a Avaiable with or without wW&ws Ild gasket
• Available with carbon Mhaft
• 4 stainless steel ft2wad socket cap screws & hex
key wrench
® Insulated Ilds evaliable - Y or V
2' of InsukdIon
Phons: 7194054d1
I= 719.39&3M
waa■Iin wwwvMsywwasLwM
Fria■:
0
Applications
The Biotube ProPak Pump Package is designed to filter and pump
effluent from a one- or hero -compartment septic tank or pump tank to
gravity or pressurized dispersal,
Control panel I Packages for on -demand dosing or timed dosing at 10. 20. 30. and
0 50gpm (0 6,113, 1.9, and 3.211sec) and 501-Iz are available.
ffCftrr'm 4
Toe box 4 F
1'"-u
Float stet
Float WA
Float —
switches
(2 or 3)
holes
Biotube
filter earl
=+- Discharge
1:1 assembly
Siotube Pni 6OHz Pump Package
acket
vault
)mm)
rsihle
punji
General
Orenco's Biotube ProPak Pump Package makes it simple to select and
install the correct pump and controls package. Its patented Biotube
pump vault technology eliminates the need for separate dosing tanks.
The pump vault also allows removal of the effluent filter for cleaning veith
no need to remove the pump vault or pump. which simplifies servicing -
For more information on specific ProPak components and options. see
the following Orenco technical documents:
• S-Series Simplex Control Panels (NTD-CP-S-1)
• MVP Simplex Control Panels (NTD-CP-MVP-1)
• External Splice Box (NTD-SBEX-1)
• Splice Boxes(NTO-SB-SB-1)
• Discharge Assemblies (NTD-HV-HV-1)
• HDA Discharge Assemblies (NTD-HOA-1)
• PF-Series Submersible Effluent Pumps: 1-Phase, 60-1-z. 4-inch
(100-mm) (NTD-PU-PF-1)
• PVA-Series 4-in. (100-1rl171) Submersible Effluent Pumps
(NTD-PU-PVA-1)
• Universal Biotube Punrp Vaults (NTD-PVU-1)
• PVP-Series Biotube Pump Vautts (NTD-PUt1-3)
• PV-Series Biotube Purnp Vaults (NTD-PVU-2)
Omfico Systems® • 8W-348-9843 • +1 541-M-4448 • www.onne.com NTD-err-1
Rer. 510owl
Page 1 of 2
Orenco
W A I L- r 1- ----
Product Code Diagram
BPP-❑-❑-0-T-O-C
TTTTTT
10
Discharge assembly; details:
SD1 = H111000C`CX field cul. 1;n FVC, ball vah2, chc�k valv,:. Omv cadml, 109Pm Wimps cn:y
S92 = HVIOOBCX: field -cut, tin PVC, ball Valve, deck valve, 10 or 20gpm pumps
SD3 = HV1250CX; beW-cut, 1 25in PVC, ball valve check valve, 30gpm pumps
SD4 = HV200BCX. lieW cut, tin PVC, ball valve dleck valve 50gen lrumps
CVdt = HVIMCFCX + HVU O0 KIT: field set. I m PVC, ball vatic. deck valve Nnv ccnbol. 109pm pimps only
Cb42 = HVIGOBCX+FIVC'd'100 KIT. Geld sel, 1 in PVC ball valve, check valve, 10 or 20gimn pumps
CW3 = H'1125BCX T HI/M125-KIT; feW se4 125m Wl ball valve check vale, 30gpm pumps
CW4 = HV20CMCX+HVCd'200 KIT: feW-set, tin PIC, ban valve check Valle, vl Purnps
DBI HV1008-DB; fx'{d-VI, bell valve, dranlrack 10 or 2Cgpn1 pumps
DB2 = HVI25B DB; I,eld-set, ball valvc, cl iloblcK 30gpin pumps
DB3 = HV20011 DB; few-so1, ba11 01v4 (fatback, 50ggn pumps
MI = HDA24 i25FCASLC FS, field-va. 1 25m hose llow control P01 (PF100511 Qrr pump only
HD2 = HDA24125ASLC FS: Field scL 125in lose, POI IPF100511 CVI pump only
HD3 = HDA24125CFMf-C FS; Ixld-set, 1 25xr hose, clwk vake 11mv cwbol, 1Ogltn pumps onry
hD4 = HDA24125CPSLC-FS: fold -set 1 25in hose, chock valve, 10, 20, or 30gpm pumps
Pump vault h:ghl in {mm). for 18m (450mm) diameter fM1er.
48 = 48 (1219) NU -Sexes 60 = 60 (1524) PVP-Scries
57 = 57 (1448) PVII-Series 55 = 55 (13971 PV-Scres
68 = 66 (1727) PVU-Scnes
1 Sphce box options
SB = In!crual spl•ce box
SX = Werval spree lox
Flwl sM1d16 pump ccd lengms, fl (m)
10 = 10 (3)
20 = 20 (6)
Control panel Owl Taildtes:
Sit = S7:3P P,111 = PAVP-SI DPA; 3P
CT:3P S12 = SIFTMM12 = IAVP SIDMHT:3P
S13 = SIHR; 2P MI3 = FAVP-S1DNiHTSA 31)
S14 = SIPTRO; 2BN PA14 = MVP-SI DMHTMTSGR NC: V
S15 = SIPTROETPACT:2Bk' M15 = FAVP-STM(DEMANO) 3P
S16 = STO:3PH M21 = MVP S2DM; 3P
S17 = S1nOETFACT, 3PN M22 = PAVP-S2WHT; 3P
NS19= SIROEThICTSA; 3PN M23 = h4VP-S2DMHTSri 3P
= SIROMTSGn NC: 3PI4
D&II rsibn: 0111ue!t PUMP mood: details:
POI = PF1005110.1; l0gom (0-6Lhs1, 0 50lip (0 371(vv). 120V P12 = PF300512.30gpn1(L0u'scc), 0 50111) (0 37kV.r.240V
kr HOI and H32 only P13 = PF300712. 30gpin(1.9L'sL-). 075hp 10,56AJ. 120V
P02= PF 100511; 1Ogpm(0.6Usccl. 0501p(0.37kA5.12011 P14 = PF301012. 30gp1n(I.DUsLcl. I Oft(0.75k'AI. 240V
P03 = PF100512: I Ogpm (0 61Jsoq. 0 501'p (0.37kW), 240V P15 = PF500511 509pin 13.2Us.Ic), 0.50hp (0.37W4). 120V
PO4 = PF100712; tOgpm (0 fiUseq. 0 7511p (0-56kKII, 240V P16 = PF500517. 50glum ta2Usec), 0 5014) (0.37k41). 240V
POS = PF101012; 1 Ogpm (0 fiUseq, I ON13 (0.75kW1.240V P17 = PF500712: 509pm (32USoc), 0 75hp (0.56kM. 240V
P08 = PF200511. 20glem (1.3Usec), 0 50hp (0.37kWj. 120V P18 = PF501012, 50gpm (3.2Usec), 1 00hp (0.75kM, 24CV
P09 = PF200512 20gpm (1 3Useq, 0 50hp (0 37W4 240V P90 = PVAI00511: 1 Ogpm (0.61.vseq, 0 50bp (0 37kW) 120V
P10 = PF201012 20gpm (1.3Useq. 100bP (0.75k+M. 240V P91 = PVA-MO511: 30gpue (1.9Usec).0 SOle (0 NO,'- !20V
P11 = PF3005' 1, 30gpm (1.gUsecl. 0 50hp (0.3714Q 120V P92 = PVA500511; 50gprn (3.212sec).0 50hp (0 37k%, 120V
Bintube° ProPak-
fFM-5M4 Orence Syslemse • BDD-348.9843 •+1 541-459-4449 • www.orence.com
Rex. 5 O ORM
Page 2 e12
Pump Selection for a Pressurized System - Singfe Family Residence Project
3724 CR 214
Parameters
DlerJharge Assembly Size
2.00
inches
Transport Length
115
feet
Transport Pipe Class
40
Transport Line Size
2.00
inches
Distributing Valve Model
Noce
Max Elevation Lift
2
feet
Manifold Length
36
feet
Manifold Pipe Class
40
Manifold Pipe Size
1.60
Inches
Number of Laterals per Cell
6
Lateral Length
66
feet
Lateral Frye Class
40
Lateral Pipe Size
1.60
inches
Orifice Sae
5f32
Inches
Orifice Spacing
4
feet
Residual Head
3
feet
Flow Meter
None
Inches
Add -on' Friction Losses
0
feet
Calculations
Minimum Flow Rate per Orifice
052
gpm
Number ofOrtrces per Zone
106
Total Flow Rate per Zone
569
gpm
Number of Laterals per Zone
6
% Flow Differential lstltast Orifice 24
%
Transport Velocity
55
fps
Frictional Head Lasses
Lis through Discharge
6.5
feet
Loss in Transport
so
feel
Lose through Valve
0.0
feet
Lose in Manifold
1.9
feet
Loss in Laterals
0.2
feet
Lass through Floarmeser
0.0
feel
Add -on' Frktion Losses
0.0
feet
Pipe Volumes
Vol of Transport Una
20.0
gala
Vol of Manifold
4.0
gals
Vol of Laterals par Zone
43A
gals
Total Volume
67.2
gals
Minimum Pume Re uiremetris
Design Flow Rate
569
gpm
Total Dynamic Head
19.3
feet
Q'Ld
Orencv
Clausen
11
te0
140
120
100
80
60
40
2C1
-
—L—�—
—4-1
0 10 20 30 40 50 60 70 80
Net Discharge (gpm)
PumpDats
PF5005 High Head Effluent Pump
60 GPM, WHIP
1151230V 106OHz, 2001230V 30 50Hz
System Curve: —
Pump Curve:
Pump Optimal Range
Operating Polnt:
Design Point:
Quick4' Standard
Chambers
The Quick4 Standard Chamber fits in a 36" wide trench
and is ideal for curved or straight systems. It features
the patent -pending Contour Swivel Connection' which
permits turns up to 10°, right or left. The MultiPort�
endcap allows multiple piping options and eliminates pipe
fittings. The chambers four -foot length provides optimal
installation Flexibility.
Benefits
• Advanced contouring connections swivel up to 10°, right
or left
• Latching mechanism allows for quick installation
• Four -foot chambers are easy to handle and install
• The Quick4 Standard Chamber supports wheel loads of
16,000 Ibs/axle with only 12" of cover
• Certified by the International Association of Plumbing and
Mechanical Officials (IAPMO)
12
Size 34" x 53" x 12" (864 mm x 1346
mm x 305 mm)
Effective Length 48" (1219 mm)
Storage Capacity 43 gal 063 L)
Louver Height 8" (203 mm)
Invert Height 8" (203 mm)
MultiPort Endcap Benefits Contact Infiltrators Technical Services
Eivht molded -in iwals/outtets allow for maximum piping Department for assistance at 1-800.221-4436
flexibility or info@infiltratorwater.com
Eliminates pipe fittings
Fits on either end of the Quick4 Standard Chamber
Quick4 Standard Chamber
Multiport Endcap.
I
Typical Trench View
xJ"n:eacKrru
COVER 6Y
oescu
12_
'N' SI�klIN4 "Eft IX:OE
rJzsoi
r.
�� 11'
p25 W5
„d.'. mrakau" Y�i Scan QR Code
for Installation
fl l'1 Instructions
x•C d
IEFFELTIVE LE-P.
rinfiitmtor
1'WyLNI
i Water Technologies
art °rlffim
inflitratorwater.com • (800) 2214436
L
Y
O
a
-E
O_ -�
C o
Z)
to s
k `c
I y
I
Y
G
I C
I UY
fmA"
I
O
t
m W
I N o.
O
a; o.
I
7
C C
o
Y
V O
I o a`
882
m
m�
m
I oO U aCL
ECUf:
IgoN
V
I N 3`
a
m m
I rn co
y 3
C-
f O
�
0
i■■Il�atllalw ■ w■■>f
O `
y U N
m� m
f0 m O
_C
Nm N
7i�aa
t
l0 w
nm
`
rago 0
Oca
p
aC
o=L
N
coV=-oa
NN�
LE2 C
3 U& W
W�
N O r •y
OC
m C C
_
to L C
N e
y c m m
C m C
L
- - - -
- - - rl
_
�
l
m
a
a
F
0-
l
CDF
ITt
F
U
m fn
T
N
Q_
m
fJ F
3
F
�
I
o
F
C
I
W
I
m
`3
I
`v
m i
C `
m
C O
T N
a `
a
y �Z
m
W
3
U)
C
C `
v
a
O
L o
e- N
di
04
cU
CD
'C1
C
s �
C) C)
94" qll
Z I
U) Cal
!�r N
C7
2:�
C
O
A cc
It7 �
V 'C
ti
d'
00
M
M
►_ e
O M
v
C LO a
v
o 3 'CL
. v Iq
.�wo
Cr�C�d'CD o
�=
Q-av
• o
Co
o v
coU'c�c
c2oc
a�� v v '-
:C u
sn
C) M
0.
0-0
N 2 r
=
C C
CD
cn c
C
q/f
C .0
L4 Cr4 Cr4 Cr-1 Cr4 Cr4 =
--i M
N N N N N N N
kn In W') In In In in
In ►n In In In in In
■OEN ■
r
C. 3
p
�w
r3 a
0 n
Z
..
P Z
D
A
ul
N O LAN
o �
m
gA
T
N
A
C4
m N
D O
n
2
D
v
x
K'
�.
o
v
of'ffi
1
� a>xxao�OoL1 "rt�Dc�c
WZ
E� m a�
non �N WNZ N*f -4A to Nr
m FJ W A
im`° $$ og O�
o <D
z r�
r m m
N
N
NNp
co
N
0
N
CPO J
N
O
N
VI
a.
N
N
N
to
O.
N
Z
N MV
6�j ►�+ y W Y+tn
N
� D
Ln
d W v d d W $ d w $ W
N N
p �Nf �7� NpN
? W N V d N
� N
O Zr N N S N Y C Y
0
`0
'o
0
T
10
fD
m m
0 -n
z
rn �o
zlz
R
0
z
m
WI
c
III
ol
m
M
a