a) Livestock wastes must not be applied to
the waters of the United States. Livestock waste application must not cause
runoff into the waters of the United States during non-precipitation events.
Livestock waste application must not occur on land that is saturated at the
time of application. Livestock waste must not be applied onto land with ponded
water.
b) Discharge of livestock
waste to waters of the United States or off-site during dry weather through
subsurface drains is prohibited.
c)
Livestock waste must not be applied during precipitation when runoff of
livestock waste will be produced.
d) Surface land application of livestock
waste must not occur within 24 hours preceding a precipitation forecast of 0.5
inches or more in a 24-hour period as measured in liquid form. The CAFO owner
or operator must use one of the following two methods for determining whether
these conditions exist and must maintain a record of the forecast from the
source used.
1) A prediction of a 60 percent
or greater chance of 0.5 inches or more of precipitation in a 24-hour period as
measured in liquid form, obtained from the National Weather Service's
Meteorological Development Laboratory, Statistical Modeling Branch, 1325 East
West Highway, Silver Spring MD 20910 for the location nearest to the land
application area; or
BOARD NOTE: The prediction in subsection (d)(1) may be
obtained from the National Weather Service at
https://www.wpc.ncep.noaa.gov/pqpf/conus_hpc_pqpf.php
2) A prediction of 0.5 inches or
more of precipitation in a 24 hour period as measured in liquid form and
identified as higher than Quantitative Precipitation Forecast (QPF) category 3,
obtained from the National Weather Service's Meteorological Development
Laboratory, Statistical Modeling Branch, 1325 East West Highway, Silver Spring
MD 20910 for the land application area location.
BOARD NOTE: The prediction in subsection (d)(2) may be
obtained from the National Weather Service at
http://www.wpc.ncep.noaa.gov/qpf/qpf2.shtml.
e) Determination of
soil loss must be made for each field using Revised Universal Soil Loss
Equation 2 (RUSLE2).
BOARD NOTE: Soil loss may be calculated using the RUSLE2
software program available at
http://fargo.nserl.purdue.edu/rusle2_dataweb/RUSLE2_Index.htm.
Additional information may be obtained from the United States Department of
Agriculture, Agricultural Research Service, 1400 Independence Avenue, S.W.,
Washington DC 20250, (202) 720-3656
f) Surface land application may be used when
the land slope is no greater than 5% or when the yearly average soil loss
calculated using RUSLE2 is equal to or less than 5 tons per acre per year or
Erosion Factor T, whichever is less, regardless of slope. Injection or
incorporation within 24 hours must be used when the land slope is greater than
5% and the yearly average soil loss calculated using RUSLE2 is greater than 5
tons per acre per year or Erosion Factor T, whichever is less. Fields with
varying or steep slopes must be divided into separate areas for calculating
yearly average soil loss using RUSLE2 to comply with this subsection.
BOARD NOTE: Soil loss may be calculated using the RUSLE2
software program available at
http://fargo.nserl.purdue.edu/rusle2_dataweb/RUSLE2_Index.htm.
Additional information on RUSLE2 may be obtained from the United States
Department of Agriculture, Agricultural Research Services, 1400 Independence
Avenue, S.W., Washington DC 20250, (202) 720-3656. Erosion Factor T for
Illinois soils is available from the United States Department of Agriculture,
Natural Resources Conservation Service, Illinois Office, 2118 W. Park Court,
Champaign IL 61821, (217) 353-6600. The published soil surveys for Illinois are
available at http://www.nrcs.usda.gov.
g) Land application of livestock
waste is prohibited on slopes greater than 15%.
h) Liquid livestock waste must not be applied
to land with less than 36 inches of soil covering fractured bedrock, sand, or
gravel. The depth of soil cover may be determined by using NRCS soil surveys,
Illinois State Geological Survey well logs, or soil probes.
i) Livestock waste must not be applied to
bedrock outcrops.
j) Livestock
waste must be applied at no greater than 50 percent of the agronomic nitrogen
rate determined under Section
502.625 when there is less than
60 inches of unconsolidated material over bedrock. The depth of unconsolidated
material may be determined by using NRCS surveys, Illinois State Geological
Survey well logs, or soil probes.
k) Livestock waste must be applied at no
greater than 50 percent of the agronomic nitrogen rate determined under Section
502.625 when the minimum soil
depth to seasonal high water table is less than or equal to 2 feet. The depth
of soil to the seasonal high water table may be determined by using information
from NRCS soil surveys, soil probes, and water table levels from Illinois State
Geological Survey well log data or well points.
l) Livestock waste must not be applied at
rates that exceed the infiltration rates of the soil.
