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 R18-9-1008 - Management Practices, Application of Biosolids to Reclamation Sites

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 where the bulk
				biosolids are applied for reclamation. The applicator shall not:
1. Apply bulk biosolids unless the soil and
				biosolids mixture has a pH of 5.0 or higher immediately after land
				application;
2. Apply bulk
				biosolids to land with slopes greater than 6% unless:
a. The site is operating under an AZPDES
				permit or a permit issued under section 402 (
				33 U.S.C.
				1342 ) or 404 (
				33 U.S.C.
				1344 ) of the Clean Water Act;
b. The site is reclaimed as specified under
				A.R.S. Title 27, Chapter 5, and controls are in place to prevent runoff from
				leaving the application area; or
c.
				Runoff from the site does not reach navigable waters;
3. Apply bulk biosolids to land under the
				following conditions:
a. Bulk biosolids with
				Class A pathogen reduction. To land if the depth to groundwater is 5 feet (1.52
				meters) or less;
b. Bulk biosolids
				with Class B pathogen reduction.
i. To land if
				the depth to groundwater is 10 feet (3.04 meters) or less; and
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, unless the applicator justifies and the
				Department approves a shorter distance, or apply bulk biosolids closer than 250
				feet (76.2 meters) from any other water well;
6. Store or apply bulk biosolids within 1000
				feet (305 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. Exceed a total of 150 dry tons per acre to
				any portion of a reclamation site if bulk biosolids are applied;
8. Apply bulk biosolids with less than 10%
				solids;
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 (
				33 U.S.C.
				1342 ) or 404 (
				33 U.S.C.
				1344 ) of the Clean Water Act;
10. Apply more water than necessary to
				control dust and establish vegetation; and
11. 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.
12. 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.