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City of Lenoir

Sewage treatment plant, major discharger, Lenoir, North Carolina. NPDES permit NC0023981 expired Feb 28, 2026; its limits still apply. Last 12 months: over a limit 2 times (last July 2026), 1 required value missing, 10 of 10 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 31 days after each period: form M monthly (33 values)
Last report on file
July 2026
Oct 2024 – Sep 2025
15 values over a limit, 8 required values missing, 7 of 12 reports late

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

Period endingParameterReportedLimitOver by
June 2026Copper, total [as Cu], 30-day average.0217 mg/L≤ 21.6 ug/L0%
July 2026Coliform, fecal MF, MFC broth, 44.5 C, weekly geometric mean650.3497 #/100mL≤ 400 #/100mL63%

Limits in force (44)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
Temperature, water deg. centigradedaily maximumreport only (deg C)Jun–Sep
Temperature, water deg. centigradedaily maximumreport only (deg C)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
Temperature, water deg. centigradedaily maximumreport only (deg C)Jun–Sep
Conductivitydaily maximumreport only (umho/cm)all year
Conductivitydaily maximumreport only (umho/cm)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
Conductivitydaily maximumreport only (umho/cm)Jun–Sep
Conductivitydaily maximumreport only (umho/cm)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
Conductivitydaily maximumreport only (umho/cm)Jun–Sep
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LApr–Oct
Oxygen, dissolved [DO]daily maximumreport only (mg/L)Jan, Feb, Mar, Nov, Dec
Oxygen, dissolved [DO]daily maximumreport only (mg/L)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
Oxygen, dissolved [DO]daily maximumreport only (mg/L)Jun–Sep
Oxygen, dissolved [DO]daily maximumreport only (mg/L)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
Oxygen, dissolved [DO]daily maximumreport only (mg/L)Jun–Sep
BOD, 5-day, 20 deg. C7-day average≤ 33 mg/LApr–Oct
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/LJan, Feb, Mar, Nov, Dec
BOD, 5-day, 20 deg. C30-day average≤ 22 mg/LApr–Oct
BOD, 5-day, 20 deg. C30-day average≤ 30 mg/LJan, Feb, Mar, Nov, Dec
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspended7-day average≤ 45 mg/Lall year
Solids, total suspended30-day average≤ 30 mg/Lall year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]7-day average≤ 6 mg/LApr–Oct
Nitrogen, ammonia total [as N]7-day average≤ 13.8 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]30-day average≤ 2 mg/LApr–Oct
Nitrogen, ammonia total [as N]30-day average≤ 4.6 mg/LJan, Feb, Mar, Nov, Dec
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Cadmium, total [as Cd]30-day average≤ 1.6 ug/Lall year
Cadmium, total [as Cd]daily maximum≤ 8.2 ug/Lall year
Copper, total [as Cu]30-day average≤ 21.6 ug/Lall year
Copper, total [as Cu]daily maximum≤ 27 ug/Lall year
Silver, total [as Ag]30-day average≤ .9 ug/Lall year
Silver, total [as Ag]daily maximum≤ 6 ug/Lall year
Zinc, total [as Zn]30-day average≤ 317 ug/Lall year
Zinc, total [as Zn]daily maximum≤ 317 ug/Lall year
Coliform, fecal MF, MFC broth, 44.5 Cweekly geometric mean≤ 400 #/100mLall year
Coliform, fecal MF, MFC broth, 44.5 Cmonthly geometric mean≤ 200 #/100mLall year
Flow, in conduit or thru treatment plant30-day average≤ 6 MGDall year
Chlorine, total residualdaily maximum≤ 28 ug/Lall year

How strict are these limits?

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/NC0023981 · MCP: https://passage-data.com/mcp