Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 9 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER POLLUTION CONTROL › Article 10 - ARIZONA POLLUTANT DISCHARGE ELIMINATION SYSTEM - DISPOSAL, USE, AND TRANSPORTATION OF BIOSOLIDS › Section R18-9-1007 - Management Practices and General Requirements

Current through Register Vol. 30, No. 28, July 12, 2024
A. An applicator of bulk biosolids that are
				not exceptional quality biosolids shall comply with the following management
				practices at each land application site, except a site where bulk biosolids are
				applied for reclamation. The applicator shall not:
1. Apply bulk biosolids to soil with a pH
				less than 6.5 at the time of the application, unless the biosolids are treated
				under one of the procedures in subsections
				R18-9-1006(D)(2),
				R18-9-1006(E)(3),
				or
				R18-9-1010(A)(6),
				or the soil and biosolids mixture has a pH of 6.5 or higher immediately after
				land application;
2. Apply bulk
				biosolids to land with slopes greater than 6%, unless the site is operating
				under an AZPDES permit or a permit issued under section 402 of the Clean Water
				Act (
				33 U.S.C.
				1342 );
3. Apply bulk biosolids to land under the
				following conditions:
a. Bulk biosolids with
				Class A pathogen reduction. If the depth to groundwater is five feet (1.52
				meters) or less;
b. Bulk biosolids
				with Class B pathogen reduction.
i. If the
				depth to groundwater is 10 feet (3.04 meters) or less; or
ii. To gravel, coarse or medium sands, or
				sands with less than 15% coarse fragments, if the depth to groundwater is 40
				feet (12.2 meters) or less from the point of application of
				biosolids;
4.
				Apply bulk biosolids to land that is 32.8 feet (10 meters) or less from
				navigable waters;
5. Store or
				apply bulk biosolids closer than 1000 feet (305 meters) from a public or
				semi-public drinking water supply well or no closer than 250 feet (76.2 meters)
				from any other water well;
6. Store
				or apply bulk biosolids within 25 feet (7.62 meters) of a public right-of-way
				or private property line unless the applicator receives permission to apply
				bulk biosolids from the land owner or lessee of the adjoining
				property;
7. Apply bulk biosolids
				at an application rate greater than the agronomic rate of the vegetation or
				crop grown on the site;
8. Apply
				domestic septage or any other bulk biosolids with less than 10% solids at a
				rate that exceeds the annual application rate, calculated in gallons per acre
				for a 365-day period by dividing the amount of nitrogen needed by the crop or
				vegetation grown on the land, in pounds per acre per 365-day period, by
				0.0026;
9. Apply bulk biosolids to
				land that is flooded, frozen, or snow-covered, so that the bulk biosolids enter
				a wetland or other navigable waters, except as provided in an AZPDES permit or
				a permit issued under section 402 of the Clean Water Act (
				33 U.S.C.
				1342 );
10. Apply any additional bulk biosolids
				before a crop is grown on the site if the site has received biosolids
				containing nitrogen at the equivalent of the agronomic rate appropriate for
				that crop;
11. Exceed the
				irrigation needs of the crop of an application site;
12. To minimize odors, apply bulk biosolids
				within 1000 feet (305 meters) of a dwelling unless the biosolids are injected
				or incorporated into the soil within 10 hours of being applied; or
13. Store bulk biosolids within 1000 feet
				(305 meters) of a dwelling unless the applicator obtains permission from the
				dwelling owner or lessee to store the biosolids at a shorter distance from the
				dwelling. If the dwelling owner or lessee changes, the applicator shall obtain
				permission from the new dwelling owner or lessee to continue to store the bulk
				biosolids within 1000 feet of the dwelling or move the biosolids to a location
				at least 1000 feet from the dwelling.