REP48377

• Permit No: M1977393
• IBM Index Class Name: Report
• Doc Date: 4/16/1996
• From: CITY OF BOULDER
• To: WQCD PE B2
• Media Type: D
• Archive: No

58 sort, suttvEr
TAHLE 5.-Est~mafed soil properties
Depth to- Classification
Depth
Sail series and map symbols Seasonal from
Bed- high surface Dominant USDA texture unified AASYO
rock water
table

Terrace escarpments: Te. InNa Feb rndua
Properties too variable to be esti-
mated.
Valmont:
Va B, VaC'_------'------------°-- (°) (') 0-7 Clay loam-°-°--------'- CL A-6
7-24 Clay_______________________ CH A-7
24-60 Very gravelly loam__________ GD[ A-1
VcC,VcE___________________________ (r) (~) 0-8 Cobbly clay loam____________ CL A-6
8-22 Cobbly clav_______ _________ CH A-7
22-60 Very gravely loam__________ Gb[ A-1
"Weld:
WdB, We B__________________________ (') (') 0-12 Loamy sand and fine sandy SM A-2 orA~
loam.
12-36 Clay loam__________________ CL or CH A-6 or A-0
36-60 Loam______________________ ML A-4
WIA, WIB, Wo B, WoC_______________ (') (~) 0-6 Loam_________'______---- ML A-4
For Colb}~ part of Wo8 and WoC, see 6-12 Clav_______________________ CL or CH A-6 or A-7
Colb}~ series. 12-60 Losm______________________ ML A-4
1vo water table or evidence of a water table was encountered to a depth of 5 feet or to the depth the soil was studied.
~ Bedrock w-as not encountered within a depth of 60 inches or to the depth the soil was studied.
TABLE 6. Engineering interpretations
[An asterisk in the first column indicates that at least one mapping unit in Lhe series ie made up o[ two or more lands of soil. The soils in
for referring to other series that
Soil series sad map symbols
Suitability of soils as a source ot-
Road fill ~ Snad and gravel ~ Topsail
Aliens Park---------------------------'---------
Mapped only witb Fern Cliff soils,
'Ascalon:
Ac A, Ac B, AoB_____________________________
For Otero port of Ao B, see Otero series.
AcC, Ac D, AoC, Ao D, Ao E____________________
For Otero part of AoC, AoD, and Ao E, see
Otero series.
Boller: Ba F'-'-----""--'-----'-'-'
Collins: Ca A, CaB_______
Poor: limited material__I Unsuitable: limited
material.
Fair to good: low to
moderate shrink-swell
potential.
Fair to good: low to
moderate shrinl-swell
potential.
_____ Poor: bedrock at depth
of ]0 to 20 inches.
____________. Fair: high water table
at depth o[ 2 to 4 feet;
low shrink-swell
potential.
Unsuitable to poor:
excessive fines.
Unsuitable to poor:
excessive fines.
Unsuitable: bedrock at
depth of 30 to 20
inches.
Poor: excessive fines____
Poor: coarse
Good to [air: limited
material.
Good to fair: limited
I material.
Pocr: stones; bedrock
at depth of 30 to 20
inches.
Fair: high water table _-