_PERMIT FILE - M1997053 ‎(36)‎

• Permit No: M1997053
• IBM Index Class Name: Permit File
• Section_Exhibit Name: EXHIBIT I SOILS INFORMATION
• Media Type: D
• Archive: No

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U.S. DEPARTMENT OF AGRICULTURE PAGE 3 OF 3
RURAL RESOURCES CONSERVATION SERVICE 01/28/97
tWATER FEATURES
note -- WATER FEATURES--Continued
Information on the extent of flooding based on soil data is less specific than that provided by detailed engineering
Igh
veys that delineate flood-prone areas at specific flood frequency levels.
Hi water table (seasonal) is the highest level of a saturated zone in the soil in most years. The depth to a
sonaL high water table applies to undrained soils. The estimates are based mainly on the evidence of a saturated
e, namely grayish colors or mottles in the soil. Indicated in this report are the depth to the seasonal high
er table; the kind of water table, that is, "Apparent", "Artesian", or "Perched"; and the months of the year that
the water table commonly is high. A water table that is seasonally high for less than 1 month is not indicated in
s report.
An "Apparent" water table is a thick zone of free water in the soil. It is indicated by the level at which water
Inds in an uncased borehole after adequate time is allowed for adjustment in the surrounding soil.
n "Artesian" water table exists under a hydrostatic beneath an impermeable layer. When the impermeable layer has been
penetrated by a cased borehole, the water rises. The final level of the water in the cased borehole is characterized as
Iartesian water table.
A "Perched" water table is water standing above an unsaturated zone. In places an upper, or "Perched", water
le is separated from a lower one by a dry zone. Only saturated zones within a depth of about 6 feet are
icated.
P ding is standing water in a closed depression. The water is removed only by deep percolation, transpiration,
1poration, or a combination of these processes.
This report gives the depth and duration of pending and the time of year when ponding is most likely. Depth, duration,
Iprobable dates of occurrence are estimated.
Depth is expressed as the depth of ponded water in feet above the soil surface. Duration is expressed as "Very
ef" if less than 2 days, "Brief" if 2 to 7 days, "Long" if 7 to 30 days, and "Very long" if more than 30 days. The
ormation is based on the relation of each soil on the Landscape to historic pending and on Local information about
the extent and levels of ponding.
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