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Cape Fear Public Utility Authority

Water Supply, Wilmington, North Carolina. NPDES permit NC0002879 expired Nov 30, 2022; its limits still apply. Last 12 months: over a limit 3 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 31 days after each period: form M monthly (7 values)
Last report on file: August 2026
Oct 2024 – Sep 2025: 3 values over a limit, 3 required values missing, 0 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period ending	Parameter	Reported	Limit
March 2026	pH, daily maximum	8.9 SU	≤ 8.5 SU
April 2026	pH, daily minimum	6.4 SU	≥ 6.8 SU
June 2026	pH, daily maximum	8.8 SU	≤ 8.5 SU

Limits in force (7)

Parameter	Statistic	Limit	Months
Turbidity	daily maximum	report only (NTU)	all year
pH	daily minimum	≥ 6.8 SU	all year
pH	daily maximum	≤ 8.5 SU	all year
Solids, total suspended	30-day average	≤ 10 mg/L	all year
Solids, total suspended	daily maximum	≤ 15 mg/L	all year
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year
Chlorine, total residual	daily maximum	≤ 13 ug/L	all year

How strict are these limits?

Solids, total suspended, 30-day average 10 mg/L — stricter than 97% of 550 other minor industrial and other permits in North Carolina; 2% have the same limit
Solids, total suspended, daily maximum 15 mg/L — stricter than 97% of 552 other minor industrial and other permits in North Carolina; 2% have the same limit
Chlorine, total residual, daily maximum 13 ug/L — stricter than 90% of 457 other minor industrial and other permits in North Carolina; 9% have the same limit

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

Same industry: the 130 Water Supply permits in North Carolina.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NC0002879 · MCP: https://passage-data.com/mcp