PROJC01820 ‎(2)‎

• Contract/PO #: C150189
• Contractor Name: Larimer and Weld Irrigation Company, The
• Contract Type: Loan
• Water District: 2
• County: Weld
• Loan Projects - Doc Type: Feasibility Study

I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I

The predominant soils in the service area are the Olney-Kim-Otero, Otero-Thedalund-Nelsen, and
Nunn-Dacono-Altvan associations as listed in the Soil Survey of Larimer County and Weld
County, Colorado, United States Department of Agriculture, September 1980. These soils are
deep, level to moderately sloping, well drained sandy loams and loams formed in a mixed
alluvium and eolian deposits. Following is a more complete description of the soils as taken from
the soil survey.

Olney series:

The Olney series consists of deep, well drained soils that formed in alluvium. Olney soils are
on plains. Slopes are 0 to 5 percent. Olney soils are similar to the the Fort Collins and Vona
soils and are near the Kim, Nelson, Otero, and Thedalund soils. Fort Collins soils are less
than 35 percent fine and coarser sand in the B horizon. Vona soils are less than 18 percent
clay in the B horizon. Nelson and Thedalund soils have sandstone between 20 and 40 inches.

Crops yields per acre in this series are typically: 3.5 to 5.5 tons of hay; 20 to 24 tons of
beets; 2400 to 2700 pounds of dry pinto beans; and, 80 to 180 bushels of corn.

Kim series:

The Kim series consists of deep, well drained soils that formed in mixed eolian deposits and
parent sediment from a wide variety of bedrock. Kim soils are on plains and alluvial fans.
Slopes are 0 to 9 percent. Kim soils are similar to the Colby, Otero, Shingle, and Thedalund
soils and are near the Fort Collins and Olney soils. Colby soils are more silty in all horizons.
Otero soils are less than 18 percent clay in the C horizon. Shingle and Thedalund soils have
shale between 10 and 40 inches. Fort Collins and Olney soils have a B horizon. Typically
these soils have free carbonates at the surface content of coarse fragments ranges to as much
as 10 percent.

Crops yields per acre in this series are: 3 to 4 tons of hay; 20 tons of beets; and, 80 to 140
bushels of corn.

Otero series:

The Otero series consists of deep, well drained soils that formed in alluvium and eolian
deposits. Otero soils are on plains and terraces. Slopes are 0 to 9 percent. Otero soils are
similar to the Kim, Nelson, Tassel, and Thedalund soils and are near the Olney and Vona
soils. Kim soils are more than 18 percent clay in the C horizon. Nelson, Tassel, and
Thedalund soils have sandstone and shale between 10 and 40 inches. Olney and V ona soils
have a B horizon. Typically these soils have free carbonates at the surface. Content of coarse
fragments ranges from 0 to 10 percent.

Larimer & Weld Feasibility Study
Lake Lee & Big Windsor - 03.043

Page 3