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Aqua North Carolina Inc

Sewerage Systems, Charlotte, North Carolina. NPDES permit NC0063860 expired Jun 30, 2025; its limits still apply. Last 12 months: no values over a limit, 6 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M monthly (17 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 2 required values missing, 9 of 12 reports late

Limits in force (17)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Conductivitydaily maximumreport only (umho/cm)all year
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. C30-day average≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 22.5 mg/Lall year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Salinitydaily maximumreport only (ppk)all year
Solids, total suspended30-day average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Nitrogen, ammonia total [as N]30-day average≤ 4 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 20 mg/Lall year
Coliform, fecal MF, MFC broth, 44.5 Cmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal MF, MFC broth, 44.5 Cdaily maximum≤ 400 #/100mLall year
Flow, in conduit or thru treatment plant30-day average≤ .0416 MGDall year
Chlorine, total residualdaily maximum≤ 28 ug/Lall year
Solids, total dissolveddaily maximumreport only (mg/L)all year

How strict are these limits?

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

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NC0063860 · MCP: https://passage-data.com/mcp