Idaho Administrative Code
Title IDAPA 02 - Agriculture, Department of
Rule 02.04.14 - RULES GOVERNING DAIRY BYPRODUCT
Section 02.04.14.030 - DAIRY ENVIRONMENTAL MANAGEMENT PLAN APPROVAL
Universal Citation: ID Admin Code 02.04.14.030
Current through August 31, 2023
01. Dairy Storage and Containment Facility Criteria. (3-31-22)
a. Dairy storage and containment facilities
shall be constructed to meet a minimum of one hundred eighty (180) days of
holding capacity. Process water containment structures that are utilized as the
secondary or final storage for effluent shall have a minimum two (2) vertical
feet of freeboard. Process water and containment structures that are not the
secondary or final storage for effluent shall have a minimum one (1) vertical
feet of freeboard. (3-31-22)
b.
Earthen dairy storage and containment facilities less than ten (10) vertical
feet high with a maximum high water line of eight (8) vertical feet shall have
a top embankment width of at least eight (8) feet. The combined embankment
slopes must be at least five (5) horizontal to one (1) vertical, and shall not
exceed two (2) horizontal to one (1) vertical slope. Earthen dairy storage and
containment facilities greater than ten (10) vertical feet from the naturally
occurring ground level shall meet the NRCS Idaho Conservation Practice Standard
Waste Storage Facility Code 313 December 2004 embankment requirements.
(3-31-22)
c. The inside bottom of
the dairy storage and containment facility shall be a minimum of two (2) feet
above the high water table, bed rock, gravel, or permeable soils. For an
earthen dairy storage and containment facility, a soil liner shall be installed
such that the specific discharge rate of the containment structure meet 1 x
10-6 cm3/cm2/ sec or less. Concrete or synthetic liners must be constructed to
ASAE and Appendix 10D specifications. (3-31-22)
d. Storage areas for dairy byproduct,
including compost and solid manure storage areas, shall be appropriately
protected to prevent run on, run off, and contamination of ground and surface
water. (3-31-22)
e. Dairy
environmental management systems shall be maintained in a condition that allows
the producer to regularly inspect the integrity of the systems.
(3-31-22)
02. Dairy Nutrient Management Plan (DNMP). Each dairy farm shall have a dairy nutrient management plan that is approved by the Department. The DNMP shall cover the dairy farm site and other land owned and operated by the dairy farm owner or operator to which dairy byproducts are land applied. Requirements to comply with the provisions of a DNMP include the following: (3-31-22)
a. Producer annual soil tests shall be
conducted as set forth in IDAPA 02.04.30, "Rules Governing Environmental and
Nutrient Management," and tested by an approved laboratory. (3-31-22)
b. Regulatory soil tests will be conducted at
frequencies sufficient to provide assurance of compliance with Section
031 and with IDAPA 02.04.30, "Rules
Governing Environmental and Nutrient Management." (3-31-22)
c. Accurate DNMP records shall be maintained.
These records shall include at a minimum: (3-31-22)
i. Annual soil analysis; (3-31-22)
ii. Date and amount of dairy byproduct and
commercial fertilizer applied to individual dairy owned or operated fields;
(3-31-22)
iii. Date(s) of exported
dairy byproduct, number of acres applied, amount of dairy byproduct exported,
and to whom dairy byproduct was exported; and (3-31-22)
iv. Actual crop yields on dairy owned or
operated fields. (3-31-22)
v. A
nitrogen management plan worksheet shall be completed for all fields and
pastures receiving land application of nutrients. (3-31-22)
d. Pasturing. All pastures utilized for
grazing of dairy animals, and other animals grazing within the same pasture,
shall be incorporated in to the DNMP and subject to the following requirements:
(3-31-22)
i. Soil testing pursuant to the NMS
and this section. (3-31-22)
ii.
Surface water access. If pastured animals have access to surface water within a
pasture, the producer may be required to implement one (1) or more NRCS
conservation practice standards to minimize adverse impact on surface water
quality. (3-31-22)
iii. Land
application. If land application occurs within a pasture, annual soil tests
shall be conducted. (3-31-22)
iv.
Confinement areas. Confinement areas shall not be considered part of a pasture.
(3-31-22)
e. IPDES
Permits. Dairy farms governed by the IPDES program are not required to submit a
DNMP to the Department. (3-31-22)
Disclaimer: These regulations may not be the most recent version. Idaho may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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