2002-04-12_PERMIT FILE - M2002052 ‎(26)‎

• Permit No: M2002052
• IBM Index Class Name: Permit File
• Doc Date: 4/12/2002
• Doc Name: Permit Application
• From: Western Equipment & Truck Inc.
• To: DMG
• Media Type: D
• Archive: No

UNIFIED SOIL CLASSIFICATION SYSTEM
Criteria for Assigning Group Symbols and Group Names Using laboratory Tests'
Soil Clasaifiwtion
Group
Symbol Group Name'
Coarse Grained Soils Gravels Clean Gravels Cu z 4 and 1 s Cc s 3r GW Wellyraded gravel`
More than 50% retained More man 50% of coarse Less than 5%fines` Cu <4 anNor 1 > Cc > 3° GP Poody graded grevel`
fraction retained on
on No. 200 sieve No. 4 sieve Gravels with Fines Fines classify as ML or MH GM Silty gravel` °~"
More man 12%fines` Fines Uassify as CL or CH GC Clayey gravel`°"
Sands Clean Sands Cu z 6 and 1 s Cc 5 3` SW Well-graded sand'
50% or more of coarse Less man 5%fines° Cu < 6 and/or 1 > Cc > 3` SP Poody graded sand'
traction passes
No. 4 sieve Sands vrim Fines Fines classify as ML or MH SM Silty sand°MA
More man 12%fines° Fines Classify as CL or CH SC Clayey sand°"'
Fine-Greined Soils Silts and Clays inorganic PI > 7 and plots on or above "A" line' CL Lean clay""
50%or more passes me Liquid limit less than 50 PI < 4 ar plots below "A" line' ML SiIC1°'
No. 200 sieve
organic Uquid limit -oven dded Organic clay"""'
< 0.75 OL
Liquid limit -not dded Organic silPt"'O
Silts and Clays Inorganic PI plots on or above "A" line CH Fat cWy"u'
Liquid limit 50 or more pl lots below "A"line MH Elastic Silt""'
organic Liquid limit -oven dded Organic Gay"~"'
<0.75 OH
Liquid limit -not dded Organic silt"Lt'~O
Highly organic soils Primarily organic matter, dark in wlor, and organic odor PT Peat
"Based on me material passing me 3-in. (75-mm) sieve
s If field sample contained cobbles or boulders, or bom, add'With cobbles
or boulders, or bom" to group name.
cGravels wim 5 to 12%fines require dual symbols: GW-GM well-graded
gravel wim silt, GW-GCwell-graded gravel wim Gay, GP-GM poody
graded gravel wim silt, GP-GC poody greded gravel wim day.
°Sands wim 5 to 12M° fines require dual symbols: SWSM well-graded
sand with silt, SW-SCwell-graded sand with Gay, SP-SM poody graded
sand wim silt, SPSC poorly graded sand with day
eCu = Dso/D1o Cc = ~L
Dio x Dm
rlf soil contains 2 15% sand, add wim sand' to group name.
glf fines dassify as CL•ML, use dual symbol GC-GM, or SCSM.
so
50
a
W 40
O
yZ
F- ~
U
20
o.
to
7
a
0
0 10 18 20 30 40 50 60 70 e0 90 100 110
LIOUID LIMIT (LU
"If fines are organic, add'Wim organic fines" to group name.
I If soil contains s 15°h gravel, add'Wim grevel' to group name.
' If Atterberg limits plot in shaded area, soil is a CL-ML, silty day.
elf soil contains 15 to 29Yo plus No. 200, add'Wim sand' or'Wim
gravel.' whichever is predominant.
~ If soil contains z 30% plus No. 200 predominantly sand, add
"sandy' to group name.
M If soil contains z 30% plus No. 200, predominantty gravel,
add "grevelly'to group name.
"PI s 4 and plots on or above 'A" line.
PI < 4 or plots below'A" line.
'PI plots on or above "A' line.
o PI plots below "A' line.
For classifieation of floe-gra ined
soils end fine-greined fractio
of coarse-grelnad soils n
tee ~
e
; ~ vi
Equadon of"A'-line J,} •t ^
Honzontel et PI=4 to LL-25 5
-- then P1=0.73 (LL-20) .... ..__
..__..__... '
..._
0 _
__. _....
___.
_.. _. ._
....____._
Equation oi'U"-line .r°
G ~
Vertical at LL=16 to PI=7,
then PI=0.9 (LL-9)
0~
ov
~'
G
MH o r OH
ML or OL
.1 ~~rr~con