DUKE ENERGY CAROLINAS LLC

NPDES permit SC0049140 · Major NON-POTW · administratively continued, expires 2018-08-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2018-08-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
0of 64 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 29 days after each monitoring period ends (the most common figure among SC permits in EPA's filings — check your permit).

Limits in force (42)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX <= 95 deg F Jun, Jul, Aug, Sep
001Temperature, water deg. fahrenheitDAILY MX <= 90 deg F Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 8.5 SU all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Lead, total [as Pb]MO AVG report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Bromide [as Br]MO AVG report only all year
001Bromide [as Br]DAILY MX report only all year
001%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AVG <= 25 % all year
001%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaDAILY MX <= 40 % all year
01ApHINST MIN report only all year
01ApHINST MAX report only all year
01AChromium, total [as Cr]MO AVG <= .2 mg/L all year
01AChromium, total [as Cr]DAILY MX <= .2 mg/L all year
01AZinc, total [as Zn]MO AVG <= 1 mg/L all year
01AZinc, total [as Zn]DAILY MX <= 1 mg/L all year
01AFlow, in conduit or thru treatment plantMO AVG report only all year
01AFlow, in conduit or thru treatment plantDAILY MX report only all year
01AChlorine, free availableMO AVG <= .2 mg/L all year
01AChlorine, free availableDAILY MX <= .5 mg/L all year
01BpHINST MIN report only all year
01BpHINST MAX report only all year
01BSolids, total suspendedMO AVG <= 30 mg/L all year
01BSolids, total suspendedDAILY MX <= 100 mg/L all year
01BOil & GreaseMO AVG <= 15 mg/L all year
01BOil & GreaseDAILY MX <= 20 mg/L all year
01BFlow, in conduit or thru treatment plantMO AVG report only all year
01BFlow, in conduit or thru treatment plantDAILY MX report only all year
01CpHINST MIN report only all year
01CpHINST MAX report only all year
01CSolids, total suspendedMO AVG <= 30 mg/L all year
01CSolids, total suspendedDAILY MX <= 100 mg/L all year
01COil & GreaseMO AVG <= 15 mg/L all year
01COil & GreaseDAILY MX <= 20 mg/L all year
01CFlow, in conduit or thru treatment plantMO AVG report only all year
01CFlow, 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