Completed Rulemaking Page (under 2025 Aquifer Water Quality Standards (AWQS) Update) | View >

• Fact Sheet | View >

Final Rule

• AWQS Rule | View >
• AWQS Implementation Plan | View >

Guidance Documents

• Alternative Baseline Monitoring Request | View ABM Guidance >
• Unlikely to be Present in Discharge Demonstration | View Demo Guidance >
• New or Adjusted AWQS Baseline Monitoring Report Template | View Template >
• New AWQS Rule Flow Chart | View Chart >

How ADEQ Adopts Maximum Contaminant Limits (MCLs) as AWQS

Standard Works

ADEQ has developed a methodical, defensible Standard Work or procedure for the agency to follow when MCLs are established or changed in the future based on the statutory requirements in A.R.S. § 49-223 (A) & (B).

A.R.S. § 49-223 A & B | View >

Appropriateness

• AWQS Appropriate 1 | View >
• AWQS Appropriate 2A | View >
• AWQS Appropriate 2B | View >
• AWQS Appropriate 3 | View >

Alternative

• AWQS Alternative 4 | View >
• AWQS Alternative 5A | View >
• AWQS Alternative 5B | View >
• AWQS Alternative 6 | View >

Meeting Resources