Arizona Revised Statutes Title 49. The Environment § 49-233. Priority ranking and schedule

1. The designated uses of the WOTUS.

2. The type and extent of risk from the impairment to human health or aquatic life.

3. The degree of public interest and support, or its lack.

4. The nature of the WOTUS, including whether it is an ephemeral, intermittent or effluent-dependent water.

5. The pollutants causing the impairment.

6. The severity, magnitude and duration of the violation of the applicable surface water quality standard.

7. The seasonal variation caused by natural events such as storms or weather patterns.

8. Existing treatment levels and management practices.

9. The availability of effective and economically feasible treatment techniques, management practices or other pollutant loading reduction measures.

10. The recreational and economic importance of the water.

11. The extent to which the impairment is caused by discharges or activities that have ceased.

12. The extent to which natural sources contribute to the impairment.

13. Whether the water is accorded special protection under federal or state water quality law.

14. Whether action that is taken or that is likely to be taken under other programs, including voluntary programs, is likely to make significant progress toward achieving applicable standards even if a total maximum daily load is not developed.

15. The time expected to be required to achieve compliance with applicable surface water quality standards.

16. The availability of documented, effective analytical tools for developing a total maximum daily load for the water with reasonable accuracy.

17. Department resources and programmatic needs.