Duke Energy Carolinas LLC

NPDES permit NC0003468 · Major NON-POTW · effective, expires 2027-10-31 · 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
10required values missing, on 10 form(s)
0of 22 forms filed late

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

Reporting

Reports are due about 31 days after each monitoring period ends (the most common figure among NC permits in EPA's filings — check your permit).

Limits in force (15)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX <= 37.2 deg C all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Temperature, water deg. centigradeDAILY MX <= 32 deg C all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 100 mg/L all year
001Oil & Grease30DA AVG <= 15 mg/L all year
001Oil & GreaseDAILY MX <= 20 mg/L all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualDAILY MX <= 28 ug/L all year
001ASolids, total suspended30DA AVG <= 30 mg/L all year
001ASolids, total suspendedDAILY MX <= 100 mg/L all year
001AOil & Grease30DA AVG <= 15 mg/L all year
001AOil & GreaseDAILY MX <= 20 mg/L 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