Duke Energy Carolinas LLC

NPDES permit NC0024406 · Major NON-POTW · effective, expires 2030-02-28 · EPA's file as of 2026-09-19

Check this month's numbers before you file

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
37required values missing, on 17 form(s)
1of 87 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 31 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (51)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigrade9B <= 32 deg C all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001ATemperature, water deg. centigradeDAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
003BTemperature, water deg. centigradeDAILY MX report only all year
003BTurbidityDAILY MX report only all year
003BpHDAILY MX report only all year
003BHardness, total [as CaCO3]DAILY MX report only all year
003BChloride [as Cl]DAILY MX report only all year
003BArsenic, total [as As]DAILY MX report only all year
003BCadmium, dissolved [as Cd]DAILY MX report only all year
003BChromium, total [as Cr]DAILY MX report only all year
003BCopper, dissolved [as Cu]DAILY MX report only all year
003BLead, dissolved [as Pb]DAILY MX report only all year
003BZinc, dissolved [as Zn]DAILY MX report only all year
003BSelenium, total [as Se]DAILY MX report only all year
003BSolids, total dissolvedDAILY MX report only all year
003BBromide [as Br]DAILY MX report only all year
003BMercury, total [as Hg]DAILY MX report only all year
005Temperature, water deg. centigradeDAILY MX report only all year
005Solids, total suspendedDAILY MX report only all year
005Hardness, total [as CaCO3]DAILY MX report only all year
005Arsenic, total [as As]DAILY MX report only all year
005Selenium, total [as Se]DAILY MX report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
006pHDAILY MN >= 6 SU all year
006pHDAILY MX <= 9 SU all year
006Nitrogen, ammonia total [as N]30DA AVG <= 1 mg/L all year
006Nitrogen, ammonia total [as N]DAILY MX <= 5 mg/L all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006ATurbidityDAILY MX report only all year
006ApHDAILY MN >= 6 SU all year
006ApHDAILY MX <= 9 SU all year
006ASolids, total suspended30DA AVG <= 30 mg/L Feb, May, Aug, Nov
006ASolids, total suspendedDAILY MX <= 50 mg/L Feb, May, Aug, Nov
006AOil & Grease30DA AVG <= 15 mg/L all year
006AOil & GreaseDAILY MX <= 20 mg/L all year
006AFlow, in conduit or thru treatment plant30DA AVG <= 3 MGD all year
006APass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiaDAILY MX report only all year
009Temperature, water deg. centigradeDAILY MX report only all year
009BOD, 5-day, 20 deg. C30DA AVG <= 30 mg/L all year
009BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
009pHDAILY MX report only all year
009Solids, total suspended30DA AVG <= 90 mg/L all year
009Solids, total suspendedDAILY MX <= 135 mg/L all year
009Nitrogen, ammonia total [as N]DAILY MX report only all year
009Coliform, fecal MF, MFC broth, 44.5 CMO GEOMN <= 200 #/100mL all year
009Coliform, fecal MF, MFC broth, 44.5 CDAILY MX <= 400 #/100mL all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states