18 A.A.C. 11 Supp. 19-3 This Chapter contains rule Sections that were filed to be codified in the Arizona Administrative Code between the dates of July 1, 2019 through September 30, 2019 Title 18 TITLE 18. ENVIRONMENTAL QUALITY CHAPTER 11. DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS The table of contents on the first page contains quick links to the referenced page numbers in this Chapter. Refer to the notes at the end of a Section to learn about the history of a rule as it was published in the Arizona Administrative Register. Sections, Parts, Exhibits, Tables or Appendices codified in this supplement. The list provided contains quick links to the updated rules. R18-11-101. Definitions ............................................................ 3 Table 11. Acute Standards for Total Ammonia (in mg/L, as R18-11-107.01. Antidegradation Criteria ...................................... 6 N) for Aquatic and Wildlife coldwater, Unionid R18-11-109. Numeric Water Quality Standards .......................9 Mussels Present ..................................................22 R18-11-114. Mixing Zones ..................................................... 12 Table 12. Acute Standards for Total Ammonia (in mg/L, as R18-11-115. Site-Specific Standards ...................................... 13 N) for Aquatic and Wildlife warmwater, Unionid R18-11-120. Enforcement of Non-permitted Discharges ....... 14 Mussels Present ..................................................23 R18-11-122. Variances ............................................................ 14 Table 13. Chronic Criteria for Total Ammonia (in mg/L, as Appendix A. Numeric Water Quality Standards .....................17 N) for Aquatic and Wildlife coldwater and Table 1. Water Quality Criteria By Designated Use (see f) warmwater, Unionid Mussels Present ................24 ............................................................................. 17 Table 14. Acute Standards for Total Ammonia (in mg/L, as Table 2. Acute Water Quality Standards for Dissolved N) for Aquatic and Wildlife Coldwater, Unionid Cadmium ............................................................ 20 Mussels Absent ..................................................25 Table 3. Chronic Water Quality Standards for Dissolved Table 15. Acute Standards for Total Ammonia (in mg/L, as Cadmium ............................................................ 20 N) for Aquatic and Wildlife Warmwater and Table 4. Water Quality Standards for Dissolved Chromium Effluent Dependent, Unionid Mussels Absent ...26 III ....................................................................... 20 Table 16. Chronic Standards for Total Ammonia (in mg/L, as Table 5. Water Quality Standards for Dissolved Copper . 20 N) for Aquatic and Wildlife Warmwater and Table 6. Water Quality Standards for Dissolved Lead ..... 21 Effluent Dependent, Unionid Mussels Absent ...27 Table 7. Water Quality Standards for Dissolved Nickel .. 21 Table 17. Chronic Criteria for Total Ammonia (in mg/L, as Table 8. Water Quality Standards for Dissolved Silver ... 21 N) for Aquatic and Wildlife coldwater, Unionid Table 9. Water Quality Standards for Dissolved Zinc ..... 21 Mussels Absent ..................................................28 Table 10. Water Quality Standards for Pentachlorophenol 22 Appendix B. Surface Waters and Designated Uses .................30 Appendix C. Site-Specific Standards ......................................56 Questions about these rules? Contact: Name: Benjamin Bryce, Legal Specialist Address: Department of Environmental Quality 1110 W. Washington St. Phoenix, AZ 85007 Telephone: (602) 771-4689 E-mail: [email protected] Website: http://www.azdeq.gov/draft-and-proposed-rule- water-quality-division http://www.azdeq.gov/node/3934 The release of this Chapter in Supp. 19-3 replaces Supp. 16-4, 1-63 pages Please note that the Chapter you are about to replace may have rules still in effect after the publication date of this supplement. Therefore, all superseded material should be retained in a separate binder and archived for future reference. i PREFACE Under Arizona law, the Department of State, Office of the Secretary of State (Office), accepts state agency rule filings and is the publisher of Arizona rules. The Office of the Secretary of State does not interpret or enforce rules in the Administrative Code. Questions about rules should be directed to the state agency responsible for the promulgation of the rule. Scott Cancelosi, Director ADMINISTRATIVE RULES DIVISION note to make rules is often included at the beginning of a chapter. RULES Other Arizona statutes may be referenced in rule under the A.R.S. The definition for a rule is provided for under A.R.S. § 41-1001. acronym. “‘Rule’ means an agency statement of general applicability that implements, interprets, or prescribes law or policy, or describes SESSION LAW REFERENCES the procedures or practice requirements of an agency.” Arizona Session Law references in a chapter can be found at the Secretary of State’s website, under Services-> Legislative Fil- THE ADMINISTRATIVE CODE ings. The Arizona Administrative Code is where the official rules of the state of Arizona are published. The Code is the official codifica- EXEMPTIONS FROM THE APA tion of rules that govern state agencies, boards, and commissions. It is not uncommon for an agency to be exempt from the steps outlined in the rulemaking process as specified in the Arizona The Code is separated by subject into titles. Titles are divided into Administrative Procedures Act, also known as the APA (Arizona chapters. A chapter includes state agency rules. Rules in chapters Revised Statutes, Title 41, Chapter 6, Articles 1 through 10). are divided into Articles, then Sections. The “R” stands for “rule” Other agencies may be given an exemption to certain provisions with a sequential numbering and lettering outline separated into of the Act. subsections. An agency’s exemption is written in law by the Arizona State Rules are codified quarterly in the Code. Supplement release Legislature or under a referendum or initiative passed into law by dates are printed on the footers of each chapter. Arizona voters. First Quarter: January 1 - March 31 Second Quarter: April 1 - June 30 When an agency files an exempt rulemaking package with our Third Quarter: July 1 - September 30 Office it specifies the law exemption in what is called the pre- Fourth Quarter: October 1 - December 31 amble of rulemaking. The preamble is published in the Register For example, the first supplement for the first quarter of 2019 is online at www.azsos.gov/rules, click on the Administrative Reg- cited as Supp. 19-1. ister link. Please note: The Office publishes by chapter, not by individual Editor’s notes at the beginning of a chapter provide information rule section. Therefore there might be only a few sections codi- about rulemaking sections made by exempt rulemaking. Exempt fied in each chapter released in a supplement. Historical notes at rulemaking notes are also included in the historical note at the end the end of a section provide an effective date and information of a rulemaking Section. when a rule was last updated. The Office makes a distinction to certain exemptions because AUTHENTICATION OF PDF CODE CHAPTERS some rules are made without receiving input from stakeholders or The Office began to authenticate chapters of the Administrative the public. Other exemptions may require an agency to propose Code in Supp. 18-1 to comply with A.R.S. § 41-1012(B) and exempt rules at a public hearing. A.R.S. § 5302(1), (2)(d) through (e), and (3)(d) through (e). EXEMPTIONS AND PAPER COLOR A certification verifies the authenticity of each Code chapter At one time the office published exempt rules on either blue or posted as it is released by the Office of the Secretary of State. The green paper. Blue meant the authority of the exemption was given authenticated pdf of the Code includes an integrity mark with a by the Legislature; green meant the authority was determined by a certificate ID. Users should check the validity of the signature, court order. In 2001 the Office discontinued publishing rules especially if the pdf has been downloaded. If the digital signature using these paper colors. is invalid it means the document’s content has been compro- mised. PERSONAL USE/COMMERCIAL USE This chapter is posted as a public courtesy online, and is for HOW TO USE THE CODE private use only. Those who wish to use the contents for resale or Rules may be in effect before a supplement is released by the profit should contact the Office about Commercial Use fees. For Office. Therefore, the user should refer to issues of the Arizona information on commercial use fees review A.R.S. § 39-121.03 Administrative Register for recent updates to rule Sections. and 1 A.A.C. 1, R1-1-113. ARIZONA REVISED STATUTE REFERENCES Rhonda Paschal, managing rules editor, assisted with the editing The Arizona Revised Statutes (A.R.S.) are available online at the of this chapter. Legislature’s website, www.azleg.gov. An agency’s authority ii Arizona Administrative Code 18 A.A.C. 11 Administrative Rules Division The Arizona Secretary of State electronically publishes each A.A.C. Chapter with a digital certificate. The certificate-based signature displays the date and time the document was signed and can be validated in Adobe Acrobat Reader. TITLE 18. ENVIRONMENTAL QUALITY CHAPTER 11. DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS ARTICLE 1. WATER QUALITY STANDARDS FOR