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City of Charlotte

Airports, Flying Fields, & Services, Charlotte, North Carolina. NPDES permit NC0083887 expired Jun 30, 2015; its limits still apply. Last 12 months: no values over a limit, 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 30 days after each period: form M monthly (8 values)
Last report on file: August 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 1 of 12 reports late

Limits in force (8)

Parameter	Statistic	Limit	Months
pH	daily minimum	≥ 6 SU	all year
pH	daily maximum	≤ 9 SU	all year
Solids, total suspended	daily maximum	≤ 45 mg/L	all year
Oil & Grease	daily maximum	≤ 45 mg/L	all year
Toluene	daily maximum	≤ 11 ug/L	all year
Benzene	daily maximum	≤ 51 ug/L	all year
Ethylbenzene	daily maximum	report only (ug/L)	all year
Xylene [mix of m+o+p]	daily maximum	report only (ug/L)	all year

How strict are these limits?

Toluene, daily maximum 11 ug/L — stricter than 67% of 173 other minor industrial and other permits nationwide; 3% have the same limit
Oil & Grease, daily maximum 45 mg/L — stricter than 53% of 26 other minor industrial and other permits in North Carolina; 4% have the same limit
Benzene, daily maximum 51 ug/L — stricter than 14% of 336 other minor industrial and other permits nationwide; 2% have the same limit

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NC0083887 · MCP: https://passage-data.com/mcp