Passage Data · Check a report · Use it from your AI

White Mountian Apache Tribe

Construction Sand And Gravel, Whiteriver, Arizona. NPDES permit AZ0024511 expired Mar 31, 2023; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 28 days after each period: form A monthly (10 values)
Last report on file: August 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 2 of 12 reports late

Limits in force (10)

Parameter	Statistic	Limit	Months
Temperature, water deg. centigrade	daily maximum	≤ 32.2 deg C	all year
Turbidity	daily maximum	≤ 25 NTU	all year
pH	minimum	≥ 6.5 SU	all year
pH	maximum	≤ 9 SU	all year
Solids, total suspended	monthly average	≤ 25 mg/L	all year
Solids, total suspended	daily maximum	≤ 45 mg/L	all year
Solids, total suspended	monthly average	≤ 1.2 kg/d	all year
Solids, total suspended	daily maximum	≤ 8.5 kg/d	all year
Flow, in conduit or thru treatment plant	monthly average	≤ 13000 gal/d	all year
Flow, in conduit or thru treatment plant	daily maximum	≤ 50000 gal/d	all year

How strict are these limits?

Solids, total suspended, monthly average 25 mg/L — stricter than 87% of 32 other minor industrial and other permits in Arizona
Turbidity, daily maximum 25 NTU — stricter than 81% of 298 other minor industrial and other permits nationwide; 5% have the same limit
Solids, total suspended, daily maximum 45 mg/L — stricter than 45% of 8,109 other minor industrial and other permits nationwide; 27% have the same limit

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

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AZ0024511 · MCP: https://passage-data.com/mcp