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

HOIILDER COIINTY AREA, COLORADO
.79
significant in engineering-Continued
I

Coarse Percentage less than 3 inches pnssing sieve-
fraction Perinea- Available Shrrik-swell
greater bility water Reaction Salinity po: entisl
than No. 4 Nn. ]0 ?Nn. 40 No. 200 cnpacity
3 inches (4.7 mm) (2.0 mm) (0.42 mm) (0.014 mm)
InNca pn irW An77imAm pn
InrAU pn Awr aJ soil p7i cm. at rb° C.
0-15 80.9.; 7x95 65-80 .10.65 0.6-2.0 0.17-0.20 6.6-7.8 <°.0 Moderate.
5-15 S.i-9.i 6o-9.i 60.8.1 50-80 0.2-0.6 0.14-0.16 6.6-8.4 <2.0 High.
10-20 35-:10 2.1-35 20.30 10-20 2.0-6.0 0.07-0.09 7.4-6.4 <.. 0-B.0 Lox.
35-.i0 70.6;1 70.50 60-70 40-55 0.6-2.0 0.13-0.16 6.6-i.3 <2.0 Lox.
2ii-40 70-85 70-80 6o-7.i 50-65 0.2-0.6 0.10-0.13 6.6-8.4 <2.0 1,loderate.
10.25 3'x50 25-35 20-30 10-20 2.0-6.0 O. Oi-0.09 7.4-5.4 !:0-g.0 Low. .
_ _ _ _ _ _ _ _ _ _ 100 100 75-95 25-45 2. 0-6.0 0. 10-0. 15 6. 6-7.3 <2. 0 Low.
__________ 100 100 90-100 7r95 0.06-0.2 0.14-0.16 6. o-7.3 <^-.0 High.
_ _ _ _ _ _ _ . _ _ 100 100 3.5-100 60.80 0. 2-2. 0 0. 16-0. 20 i. 4-8.4 :'. 0-1 0 Moderate.
________._ 100 100 Sfr95 60-15 0.6-20 O. 1G-0. 1S 6.6-7.3 <2.0 \loderate.
_ _ _
- -- --- ] 00 100 90-100 i 5-9.1 0. 00-0.2 0. 14-0. 16 6. 6-7.3 <2. 0 High.

_____..___ 100 loo s5-s5 so-75 o. 6-z. o o. ]s-o. lg 7.4-s. 4
:'. 0-4.0
Moderate.
~ Materials consisting of waste from sugar beet processing plant. These materials are too variable to estimate.
of soil Properties
such mapping units may hnce different properties and limitations, and [or this reason it is necessary to follow carefuuy the instructions
appear in the first column of this table]
Soil features nffecting-
Pond reservoir areas Embankments and dikes Drainage of cropland Irrigation Terzaces end diversions
and pasture
Bedrock at depth of 20 Medium permeability; Drainage not needed_____ 15 to 60 percent slopes___ Bedrock at depth of 20
to 40 inches; ]5 to fair compaction; to 40 inches; 13 to
00 percent slopes. medium piping 60 percent slopes.
potential.
Moderate permenbil- Medium to low perinea- Moderate permeabilit}•___ Rapid intake rate; high Sand}- loam surfnce
ity; 0 to 3 percent bility; (air to good available water capac layer; deep; 0 to 3
slopes. compaction; medium itp; 0 to 3 percent percent slopes.
piping potential. slopes.
Moderate permcabil- ll~fedium to low perinea- Moderate permeabilit.}-___ Rapid intake rate; high Sandy loam surfnce
ity; 3 to 20 percent bility; fair to good available water capac- layer; deep; 3 to 20
slopes. compaction; medium itt'; 3 to 20 percent percent slopes.
piping potential. slopes.
Bedrock at depth of 10 Ston}• surface layer; Drainage not needed__ _ _ _ Stony-; shallops; 9 to 33 Stony; bedrock at depth
to 20 inches; 9 w 35 bedrock at depth of percent slopes. of l0 to 20 inches; 9 to
percent slopes. 10 to 20 inches. 33 percent slopes.
High water table; Medium permeability; High water table; Rapid intake rate; high Sandy loam surface
moderatel}~ rapid fair to good compac- moderatcl}' rapid available water layer; venter table at
permeability. tion; medium to high permeability. capacity. depth o[ 2 to 4 feet;
ninina potential. 0 to 3 percent slopes.