USDA SSURGO COUNTY SOIL REFERENCE

El Paso County, Colorado Soil Summary

This page summarizes USDA SSURGO mapped soil information for El Paso County, Colorado.

Mapped Land Coverage

100%1,362,628.49 mapped acres of 1,362,628.24 Census land acres

Coverage measures mapped SSURGO intersection with Census land geometry. It does not mean that every parcel or point has complete soil information.

Soil at a Glance

Largest mapped soil unit

Blakeland loamy sand, 1 to 9 percent slopes

Symbol: 8 • 5.36% of mapped area

Largest estimated component

Truckton

117,372.92 acres (8.61% of mapped area)

Mapped units & components

243 mapped soil units

Top 15 shown below · 174 component series

Dominant drainage class

Well drained

Highest acreage drainage class

Dominant hydrologic group

Group A

Runoff potential classification

Weighted average slope

9.43%

Terrain slope analysis

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Top Mapped Soil Units

Showing the 15 largest mapped units, representing 41.52% of mapped soil area.

Symbol	Map Unit Name	Mapped Acres	% of Mapped Area
8	Blakeland loamy sand, 1 to 9 percent slopes	73,034	5.36%
97	Truckton sandy loam, 3 to 9 percent slopes	72,807.6	5.34%
102	Valent sand, 1 to 12 percent slopes, dry	63,244.78	4.64%
12	Bresser sandy loam, cool, 3 to 5 percent slopes	42,969.53	3.15%
60	Olney sandy loam, 0 to 3 percent slopes	39,668.6	2.91%
46	Sphinx-Rock outcrop complex, 15 to 80 percent slopes	37,015.04	2.72%
2	Ascalon sandy loam, 1 to 3 percent slopes	31,928.39	2.34%
96	Truckton sandy loam, 0 to 3 percent slopes	29,466.1	2.16%
3	Ascalon sandy loam, 3 to 9 percent slopes	27,484.27	2.02%
19	Columbine gravelly sandy loam, 0 to 3 percent slopes	27,206.48	2%
28	Ellicott loamy coarse sand, 0 to 5 percent slopes	25,967.77	1.91%
11	Bresser sandy loam, cool, 0 to 3 percent slopes	25,696.67	1.89%
101	Ustic Torrifluvents, loamy	24,108.24	1.77%
106	Wigton loamy sand, 1 to 8 percent slopes	22,838.69	1.68%
7	Bijou sandy loam, 3 to 8 percent slopes	22,211.02	1.63%

85.36% of mapped area

Blakeland loamy sand, 1 to 9 percent slopes

Mapped Area73,034 acres

Rank#1 of 243 in county

975.34% of mapped area

Truckton sandy loam, 3 to 9 percent slopes

Mapped Area72,807.6 acres

Rank#2 of 243 in county

1024.64% of mapped area

Valent sand, 1 to 12 percent slopes, dry

Mapped Area63,244.78 acres

Rank#3 of 243 in county

123.15% of mapped area

Bresser sandy loam, cool, 3 to 5 percent slopes

Mapped Area42,969.53 acres

Rank#4 of 243 in county

602.91% of mapped area

Olney sandy loam, 0 to 3 percent slopes

Mapped Area39,668.6 acres

Rank#5 of 243 in county

462.72% of mapped area

Sphinx-Rock outcrop complex, 15 to 80 percent slopes

Mapped Area37,015.04 acres

Rank#6 of 243 in county

22.34% of mapped area

Ascalon sandy loam, 1 to 3 percent slopes

Mapped Area31,928.39 acres

Rank#7 of 243 in county

962.16% of mapped area

Truckton sandy loam, 0 to 3 percent slopes

Mapped Area29,466.1 acres

Rank#8 of 243 in county

32.02% of mapped area

Ascalon sandy loam, 3 to 9 percent slopes

Mapped Area27,484.27 acres

Rank#9 of 243 in county

192% of mapped area

Columbine gravelly sandy loam, 0 to 3 percent slopes

Mapped Area27,206.48 acres

Rank#10 of 243 in county

281.91% of mapped area

Ellicott loamy coarse sand, 0 to 5 percent slopes

Mapped Area25,967.77 acres

Rank#11 of 243 in county

111.89% of mapped area

Bresser sandy loam, cool, 0 to 3 percent slopes

Mapped Area25,696.67 acres

Rank#12 of 243 in county

1011.77% of mapped area

Ustic Torrifluvents, loamy

Mapped Area24,108.24 acres

Rank#13 of 243 in county

1061.68% of mapped area

Wigton loamy sand, 1 to 8 percent slopes

Mapped Area22,838.69 acres

Rank#14 of 243 in county

71.63% of mapped area

Bijou sandy loam, 3 to 8 percent slopes

Mapped Area22,211.02 acres

Rank#15 of 243 in county

Estimated Soil Components

Showing the 15 largest estimated component series. Component acreages are estimated from SSURGO map-unit component percentages (comppct_r) applied to spatially measured map-unit acreage.

Component	Drainage Class	Hydrologic Group	Estimated Acres	% of Mapped Area
Truckton	Well drained	B, A	117,372.92	8.61%
Blakeland	Somewhat excessively drained	A	82,996.46	6.09%
Bresser	Well drained	C, B	77,915.44	5.72%
Valent	Excessively drained	A	70,996.65	5.21%
Olney	Well drained	B	63,045.21	4.63%
Ascalon	Well drained	B	55,394.36	4.07%
Sphinx	Somewhat excessively drained	D	52,317.95	3.84%
Bijou	Somewhat excessively drained	A	42,251.52	3.1%
Rock outcrop	Unspecified	D	39,502.45	2.9%
Vonid	Somewhat excessively drained	A	37,975.97	2.79%
Razor	Well drained	D	32,399.65	2.38%
Other soils	Unspecified	Unspecified	32,180.77	2.36%
Kettle	Somewhat excessively drained	B, A	31,192.56	2.29%
Pring	Well drained	B, A	29,441	2.16%
Columbine	Well drained	A	26,390.29	1.94%

Component acreage is estimated from SSURGO map-unit component percentages. Component values are not independently mapped polygon boundaries.

Truckton

8.61%

Estimated Acres117,372.92

Drainage ClassWell drained

Hydrologic GroupB, A

Blakeland

6.09%

Estimated Acres82,996.46

Drainage ClassSomewhat excessively drained

Hydrologic GroupA

Bresser

5.72%

Estimated Acres77,915.44

Drainage ClassWell drained

Hydrologic GroupC, B

Valent

5.21%

Estimated Acres70,996.65

Drainage ClassExcessively drained

Hydrologic GroupA

Olney

4.63%

Estimated Acres63,045.21

Drainage ClassWell drained

Hydrologic GroupB

Ascalon

4.07%

Estimated Acres55,394.36

Drainage ClassWell drained

Hydrologic GroupB

Sphinx

3.84%

Estimated Acres52,317.95

Drainage ClassSomewhat excessively drained

Hydrologic GroupD

Bijou

3.1%

Estimated Acres42,251.52

Drainage ClassSomewhat excessively drained

Hydrologic GroupA

Rock outcrop

2.9%

Estimated Acres39,502.45

Drainage ClassUnspecified

Hydrologic GroupD

Vonid

2.79%

Estimated Acres37,975.97

Drainage ClassSomewhat excessively drained

Hydrologic GroupA

Razor

2.38%

Estimated Acres32,399.65

Drainage ClassWell drained

Hydrologic GroupD

Other soils

2.36%

Estimated Acres32,180.77

Drainage ClassUnspecified

Hydrologic GroupUnspecified

Kettle

2.29%

Estimated Acres31,192.56

Drainage ClassSomewhat excessively drained

Hydrologic GroupB, A

Pring

2.16%

Estimated Acres29,441

Drainage ClassWell drained

Hydrologic GroupB, A

Columbine

1.94%

Estimated Acres26,390.29

Drainage ClassWell drained

Hydrologic GroupA

Component acreage is estimated from SSURGO map-unit component percentages. Component values are not independently mapped polygon boundaries.

Drainage Class Distribution

Well drained59.23%

807,025.66 acres

Somewhat excessively drained24.2%

329,793.26 acres

Unknown / Unmapped7.81%

106,486.36 acres

Excessively drained7.71%

105,078.42 acres

Poorly drained0.79%

10,738.51 acres

Moderately well drained0.24%

3,293.15 acres

Very poorly drained0.01%

167.92 acres

Somewhat poorly drained0%

45.19 acres

Hydrologic Soil Group Distribution

Group A35.61%

485,270.79 acres

Group B35.58%

484,817.91 acres

Group D15.12%

205,980.12 acres

Group C8.55%

116,517.63 acres

Group Unknown / Unmapped4.86%

66,158.95 acres

Group A/D0.24%

3,257.38 acres

Group C/D0.05%

625.56 acres

Group B/D0%

0.14 acres

Hydrologic soil groups are USDA/NRCS classifications related to runoff potential under specified soil conditions. They are not a property-level flood-risk rating.

Slope Characteristics

Weighted Average Slope: 9.43%

Nearly Level (0-2%)23.66%

322,372.79 acres

Gently Sloping (2-8%)47.55%

647,887.86 acres

Moderately Sloping (8-15%)8.48%

115,617.02 acres

Steep (15-30%)6.27%

85,422.22 acres

Very Steep (>30%)8.18%

111,454.52 acres

Unspecified Slope5.86%

79,874.07 acres