HomeMy WebLinkAboutOWTS Design CalculationsDesign Calculations
For
Gary Shaw
Onsite Wastewater Disposal System
August 18, 2016
,o aE���
�011yiry.`.9tr
35315 o:
CIVCO Engineeri ng Inc
Civil Engineering Consultants
Vernal, Utah
1256 W. 400 S. Office: 435-789-5448
P.O. Box 1758 Fax: 435-789-4485
Vernal, UT 84078 www.civcoengincering.com
CIVCO Engineering, Inc. Gary Shaw Page 1 of 4
PO Bax 17555, Vernal, UT, 84078 TBD (Lot 1) C.R. 259, Rifle, CO By: V King
Ph: (435)789-5448 Waste Water Disposal System 08/02/2016
Fx.' (435)789-44B5
Given: -
Single Family Residence:
Perk test data
Nb,,, := 3
Meas.
Time
Minutes
Elapsed
Test Hole i
Test Hole
Test Hole 3
Water
Level Drop Perk Rate
in. Min. in.
Water
Level Drop Perk Rate
in. Min./in.
Water
Level Drop
in.
Perk Rate
Min. In.
0:00
0:30
30.00
4.5 6.67
4.5 6.67
4.5
6667
1.00
30.00
3.25 9.23
3.5 8.57
3.5
&5 `
1:30
30.00
2.75 1031
2.5 12.00
3
Iaoo_
2:00
30.00
2.5 12.00
2.5 12.00
2.5
12.
230
30.00
2 15
2.5 12.00
2.5
1200
3:00
30.00
2 15.
2.5 12.00
15.00
3:30
30.00
Z5 12
Z5 1Z
15.00
4:00
30.00
2 15A0
2.5 1200
15.00
Hale Perk Rate: 15.00' 12.00'
1&
min
tn,le =14
in
Req"d:
Septic System Design
Sol'n:
,$%dic Tank
Tank Total Volume
VI.k if Nbed e 3 =1000 gal [Table 9-1]
II(1000 -gat)
else
jj(IOOO-gaI+(N,-3)-250-gaI)
\\SERVEIt\CivcoFiles\1_PROJECTS\2016\21 Structures\residential\clayton hms\20160801vk(a) shaw 26f8ix66f0i\septic\mc
CIVCO Engineering, Inc. Gary Shaw
PO Sox 1758, Vernal, UT, 84078 TBD (Lot 1) C.R. 259, Rifle, CO
Ph: (435)789-5448 Waste Water Disposal System
Fx: (435)789-4486
vlr+E_corup = 2 = 500 gal
Q:= if Nbd < 2 .450. _gal , [Table 6-1]
rtay
300 gal
day
else if Nzef! = 3.
450 gal
day
else if Nwi> 3
450
gal' + tN 3) 75 gal
day t��t — day
Long Term Acceptance Rate (LTAR),
Perk Rate
t:-tm,�=14 rain
in
Sail Type: 1
gal
day'
LIAR -=0.8
ftz ;
[Table 10-1]
Initial Soil Treatment Area
STA;=LZ'AR=562.5 ft" ;
a
t
Page 2 of 4
By: V King
08/02/2016
\\SERVER\CivcoFiles\l_PRD7ECTS\2016\21_5tructures\residentlal\clayton hms\20160801vk(a) shaw 26f8ix66f01\septic\mt
CIVCO Engineering, Inc. Gary Shaw Page 3 of 4
PO Box 1758, Vernal, UT, 84078 TBD (Lot 1) C.R. 259, Rifle, CO By: V King
Ph: (435)789-5448 Waste Water Disposal System 08/02/2016
Fx: (435)789-4485
Soil Treatment Area for Trenched Chambers
Application` Method lze Adugtment_Factor
SAFA,I :=1.0 (Gravity)
Dist ' tftiorl Media 517e Adustment Factor
SAFAh1=0.7 (Chambers)
Combined Size Adustment: Factor
SAF if SAF.An1-SAFbh1>0.5 =0.7
!I SAF., • SAFAa1
elsd
ll 0.5
STAB:=STA • SAF =393.75 ft'
Infiltrator Ouick 4 Standard Chamber
Chamber Area
Only the open bottom area applies.
iQ4:= 4 ft
bQ4:= 30 in
AQ4'= iQ4 ' bQ4 =10 f t
z
Chamberuantity
NTc:= �ATa =39.375 Say 40
u¢
- .. _ . . . � - 0. . r .
[Table 10-2]
(Table 10-31.
(Sec 43.10.D.3]
i
..1 - I
[Sec 43.10.C.1]
\\SERVER\CivcoFiies\l_PRO]ECTS\2016121_Structureslresidential\clayton hms\20160801vk(a) shaw 26f8Ix66f0l\septic\me
CIVCO Engineering, Inc. Gary Shaw Page 4 of 4
PO Box 1758, Vernal, L r, 84078 TBD (Lot 1) C.R. 259, Rifle, CO By: V King
Ph: (435)789-5448 Waste Water Disposal System 08/02/2016
Fx: (435)789-4485
Soil Treatment Area Far Bedded Chambers
Aboligation Method Size Adustrnent Factor � ,
SAFAA1:=1.2 (Gravity) ; [Table: 10-2]
' Distribution Media Size Adustment Factor
SAFDA,:=0.7 (Chambers) Table 10=3]
SAF:=: f SAFAA, - SAFDni > 0.5 = 0.84. [Sec 4110. D.3]
II-SAFAAI - SAF'DAI r
else !
110.5 r
STABC STA - SAF= 472.5 ft' '
Infiltrator Quick 4 Standard Chatnber
Chamber_ Quantlty -
NBC:= SAAac =47.25 Say 48
\\SERVER\CivcoFiles\1_PROJECTS\2016121_Structures\residential\clayton hms\20160801vk(a) Shaw 26f8ix66fOi\septic\mc
n e n }p . r
n F
9 i �
1
F►n Duns O.W.T.S PLAMQ
N
tea (LOT » C.M. zs9 CIVCO Engineering, Inc. . �.a.
RIP.Y, COLORADO 1! P.O. pax 1788. VWTW. Utah 44078
W 1 _ _ �, Telephone (43'3}789-5114 Fax (4337894185