Section R18-9-401. Definitions

In addition to the definitions established in A.R.S. §§ 49-101 and 49-201 and A.A.C. R18-9-101, the following terms apply to this Article:

1.        “Application of nitrogen fertilizer” means any use of a substance containing nitrogen for the commercial produc- tion of a crop or plant. The commercial production of a

crop or plant includes commercial sod farms and nurser- ies.

2.        “Contact stormwater” means stormwater that comes in contact with animals or animal wastes within a concen- trated animal feeding operation.

3.        “Crop or plant needs” means the amount of water and nitrogen required to meet the physiological demands of a crop or plant to achieve a defined yield.

4.        “Crop or plant uptake” means the amount of water and nitrogen that can be physiologically absorbed by the roots

and vegetative parts of a crop or plant following the application of water.

5.        “Impoundment” means any structure, other than a tank or a sump, designed and maintained to contain liquids. A structure that stores or impounds only non-contact storm- water is not an impoundment under this Article.

6.        “Liner” or “lining system” means any natural, amend- ment, or synthetic material used to reduce seepage of impounded liquids into a vadose zone or aquifer.

7.        “NRCS guidelines” means the United States Department of Agriculture, Natural Resources Conservation Service, National Engineering Handbook, Part 651 Agricultural Waste   Management   Field    Handbook,   Chapter   10, 651.1080, Appendix 10D – Geotechnical, Design, and Construction Guideline (November 1997). This material is incorporated by reference and does not include any later amendments or editions of the incorporated mate- rial. Copies of the incorporated material are available for inspection at the Arizona Department of Environmental Quality, 1110 W. Washington, Phoenix, AZ 85007 or may be obtained from the United States Department of Agri- culture, Natural Resources Conservation Service at ftp:// ftp.wcc.nrcs.usda.gov/downloads/wastemgmt/AWMFH/ awmfh-chap10-app10d.pdf.

Historical Note

Adopted effective January 4, 1991 (Supp. 91-1). Section R18-9-401 renumbered from R18-9-201 and amended by final rulemaking at 7 A.A.R. 235, effective December 8,

2000 (Supp. 00-4). Amended by final rulemaking at 11

A.A.R. 4544, effective November 12, 2005 (05-3).