PERMFILE109948

• Permit No: M2001005
• IBM Index Class Name: Permit File
• Doc Date: 1/23/2001
• Doc Name: APPLICATION FOR PERMIT GRISENTI FARMS GRAVEL PIT
• Media Type: D
• Archive: No

• i
Exhibit
Soils Information
Soils on this site exhibit a low degree of variability and are all developmentally related to the
bottomland situation of the site. Exhibit C-4, Soils Map, shows the soil distribution.
Following are descriptions of the two major soil types and their variations. These descriptions are
derived from the SCS soil survey descriptions obtained from the SCS office in Canyon City and the soil
survey of the county. The descriptions are modified by examination of the soils on site. Also contained in
this exhibit are diagrams that graphically portray the soil structure as it exists in its type form. The text in
this exhibit will describe some of the variations that exist as a result of mainly farming activity in the past.
Aquic Ustifluvents
This soil mainly occupied land away from the river. Its boundary roughly follows the boundary of
the irrigated pasture and croplands shown on the vegetation map in Exhibit C-4 and described in Exhibit J.
Aerial photos indicate these lands have been under cultivation to some extent since at least 1937. As a
result of such prolonged cultivation, the typical structure of the soil has been extensively modified.
Nevenheless, some of the original properties of the soil probably still exist at depth and may affect the
growth properties of the soil.
Typically this sail is a "deep, moderately well and somewhat poorly drained soil ... on stream
terraces," according to the SCS soil survey. The soils are variable
in profile. Typically they have a brownish gray loam surface
layer about 13 inches deep with the upper seven inches being a
loam. Below the 13 inch upper layer the soil is stratified with
fine sand, loam, and loamy fine sand. In some areas the soil is
sandy throughout.
Salinity and alkalinity are not a problem in these soils. In
some places the upper portions of the soil may be slightly saline,
but it is well below the level of being limiting to plant growth.
The soil is typically used for rangeland, hayland, and
pasture land. On this site and similar nearby lands the soil has
been used for pasture and crops, mainly corn and occasionally
small grains.
On this site the soils do not generally exhibit the
structure [hat is naturally found. The prolonged degree of
farming and irrigation has blended the upper horizons into a
more uniform and unstructured soil. Below about 18 inches,
however, the original structure appears to still be in place. At
that depth it exhibits considerable stratification and increasing
amounts of sand and gravel. The transition to the mineable
gravel is quite abrupt and is usually at about 60 inches. The
water table closely follows the top of the gravel layer. Soil above
7" OF LOAM

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WATER
E TABLE

-a„i ~fi0" ON SITE
GRAVEL 8

,1 COBBLES
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ACIUIC USTIFLUVENTS
Grisenti Farms Gravel Pit Original Application Exhibit I Page I-1