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NPDES permit SC0000400 · Minor NON-POTW · administratively continued, expires 2018-12-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2018-12-31 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 37 forms filed late

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

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 (37)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 12.5 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 24 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 15.1 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 25.4 lb/d all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 8.5 SU all year
001Solids, total suspendedMO AVG <= 15 mg/L all year
001Solids, total suspendedDAILY MX <= 24 mg/L all year
001Solids, total suspendedMO AVG <= 18.8 lb/d all year
001Solids, total suspendedDAILY MX <= 25.4 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.4 mg/L Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 2.1 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 2.8 mg/L Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 4.2 mg/L Jan, Feb, Nov, Dec
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Copper, total [as Cu]MO AVG report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]MO AVG <= .068 lb/d all year
001Copper, total [as Cu]DAILY MX <= .095 lb/d 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
001E. coliMO AVG <= 126 #/100mL all year
001E. coliDAILY MX <= 349 #/100mL 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
002pHINST MIN >= 6 SU all year
002pHINST MAX <= 8.5 SU all year
002Solids, total suspendedMO AVG <= 15 mg/L all year
002Solids, total suspendedDAILY MX <= 24 mg/L all year
002ChloroformMO AVG report only all year
002ChloroformDAILY MX report only all year
0021,1-DichloroethyleneMO AVG report only all year
0021,1-DichloroethyleneDAILY MX report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, 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