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Virginia Administrative Code
Title 9. Environment
Agency 25. State Water Control Board
Chapter 630. Virginia Pollution Abatement Regulation and General Permit for Poultry Waste Management
7/10/2020

9VAC25-630-80. Utilization and Storage Requirements for Transferred Poultry Waste.

A. Any poultry waste end-user or poultry waste broker who receives poultry waste shall comply with the requirements outlined in the following sections.

B. Storage requirements. Any poultry waste end-user or poultry waste broker who receives poultry waste shall comply with the requirements outlined in this section regarding storage of poultry waste in their possession or under their control.

1. Poultry waste shall be stored in a manner that prevents contact with surface water and ground water. Poultry waste that is stockpiled outside for more than 14 days shall be kept in a facility or at a site that provides adequate storage. Adequate storage shall, at a minimum, include the following:

a. Poultry waste shall be covered to protect it from precipitation and wind;

b. Storm water shall not run onto or under the stored poultry waste;

c. A minimum of two feet separation distance to the seasonal high water table or an impermeable barrier shall be used under the stored poultry waste. All poultry waste storage facilities that use an impermeable barrier shall maintain a minimum of one foot separation between the seasonal high water table and the impermeable barrier. "Seasonal high water table" means that portion of the soil profile where a color change has occurred in the soil as a result of saturated soil conditions or where soil concretions have formed. Typical colors are gray mottlings, solid gray, or black. The depth in the soil at which these conditions first occur is termed the seasonal high water table. Impermeable barriers shall be constructed of at least 12 inches of compacted clay, at least four inches of reinforced concrete, or another material of similar structural integrity that has a minimum permeability rating of 0.0014 inches per hour (1X10-6 centimeters per second); and

d. For poultry waste that is not stored under roof, the storage site must be at least 100 feet from any surface water, intermittent drainage, wells, sinkholes, rock outcrops, and springs.

2. Poultry waste storage facilities constructed after December 1, 2000, shall not be located within a 100-year floodplain unless there is no land available outside the floodplain on which to construct the facility and the facility is constructed so that the poultry waste is stored above the 100-year flood elevation or otherwise protected from floodwaters through the construction of berms or similar best management flood control structures.

C. Land application requirements. Any poultry waste end-user or poultry waste broker who (i) receives five or more tons of poultry waste in any 365-day period and (ii) land applies poultry waste shall follow appropriate land application requirements as outlined in this section. The application of poultry waste shall be managed to minimize adverse water quality impacts.

1. The maximum application rates can be established by the following methods:

a. Phosphorus crop removal application rates can be used when:

(1) Soil test phosphorus levels do not exceed the values listed in the table below:

Region

Soil test P (ppm)

VPI & SU Soil test (Mehlich I) *

Eastern Shore and Lower Coastal Plain

135

Middle and Upper Coastal Plain and Piedmont

136

Ridge and Valley

162

* If results are from another laboratory the Department of Conservation and Recreation approved conversion factors must be used.

(2) The phosphorus crop removal application rates are set forth by regulations promulgated by the Department of Conservation and Recreation in accordance with § 10.1-104.2 of the Code of Virginia.

b. Poultry waste may be applied to any crop at the standard rate of 1.5 tons per acre once every three years when:

(1) In the absence of current soil sample analyses and recommendations; and

(2) Nutrients have not been supplied by an organic source, other than pastured animals, to the proposed land application sites within the previous three years of the proposed land application date of poultry waste.

c. Soil test recommendations can be used when:

(1) Accompanied by analysis results for soil tests that have been obtained from the proposed field or fields in the last three years;

(2) The analytical results are from procedures in accordance with 4VAC5-15-150 A 2 f; and

(3) Nutrients from the waste application do not exceed the nitrogen or phosphorus recommendations for the proposed crop or double crops. The recommendations shall be in accordance with 4VAC5-15-150 A 2 a.

d. A nutrient management plan developed by a certified nutrient management planner in accordance with § 10.1-104.2 of the Code of Virginia.

2. The timing of land application of poultry waste shall be appropriate for the crop, and in accordance with 4VAC5-15-150 A 4, except that no waste may be applied to ice covered or snow covered ground or to soils that are saturated. Poultry waste may be applied to frozen ground under the following conditions:

a. Slopes are not greater than 6.0%;

b. A minimum of a 200-foot vegetative or adequate crop residue buffer is maintained between the application area and all surface water courses;

c. Only those soils characterized by USDA as "well drained" with good infiltration are used; and

d. At least 60% uniform cover by vegetation or crop residue is present in order to reduce surface runoff and the potential for leaching of nutrients to ground water.

3. Poultry waste shall not be land applied within buffer zones. Buffer zones at waste application sites shall, at a minimum, be maintained as follows:

a. Distance from occupied dwellings: 200 feet (unless the occupant of the dwelling signs a waiver of the buffer zone);

b. Distance from water supply wells or springs: 100 feet;

c. Distance from surface water courses: 100 feet (without a permanent vegetated buffer) or 35 feet (if a permanent vegetated buffer exists). Other site-specific conservation practices may be approved by the department that will provide pollutant reductions equivalent or better than the reductions that would be achieved by the 100-foot buffer;

d. Distance from rock outcropping (except limestone): 25 feet;

e. Distance from limestone outcroppings: 50 feet; and

f. Waste shall not be applied in such a manner that it would discharge to sinkholes that may exist in the area.

D. Poultry waste end-users and poultry waste brokers shall maintain the records demonstrating compliance with the requirements of subsections B and C for at least three years and make them available to department personnel upon request.

E. The activities of the poultry waste end-user or poultry waste broker shall not contravene the Water Quality Standards, as amended and adopted by the board, or any provision of the State Water Control Law (§ 62.1-44 et seq. of the Code of Virginia).

F. Any duly authorized agent of the board may, at reasonable times and under reasonable circumstances, enter any establishment or upon any property, public or private, for the purpose of obtaining information or conducting surveys or investigations necessary in the enforcement of the provisions of this regulation.

Statutory Authority

§§ 62.1-44.15 and 62.1-44.17:1.1 of the Code of Virginia.

Historical Notes

Derived from Volume 26, Issue 06, eff. January 1, 2010; amended, Virginia Register Volume 27, Issue 04, eff. December 1, 2010.

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