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City Of Phoenix Water Services Department

Water Supply, major discharger, Mesa, Arizona. NPDES permit AZ0023442, in force until Mar 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due

About 30 days after each period: outfall 001 form A monthly (48 values), outfall INF form A monthly (1 value)

Last report on file

August 2026

Oct 2024 – Sep 2025

0 values over a limit, 0 required values missing, 0 of 24 reports late

Limits in force (49)

How strict are these limits?

• Chromium, total [as Cr], monthly average 100 ug/L — stricter than 73% of 23 other major industrial and other permits nationwide; 4% have the same limit
• pH, minimum at least 6.5 SU — stricter than 67% of 808 other major industrial and other permits nationwide; 29% have the same limit
• Chromium, total [as Cr], daily maximum 200 ug/L — stricter than 58% of 34 other major industrial and other permits nationwide; 9% have the same limit

Cited limits by parameter: Arizona's rules and the federal ones.

Same industry: the 9 Water Supply permits in Arizona.

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AZ0023442 · MCP: https://passage-data.com/mcp