(Unknown Permittee)

NPDES permit SC0022357 · Minor NON-POTW · administratively continued, expires 2018-09-30 · 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 2018-09-30 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

4values over a limit
0required values missing, on 0 form(s)
0of 13 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, 5-day, 20 deg. C (4).

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 demand, ultimateMO AVG <= 55.2 lb/d all year
001Oxygen demand, ultimateDAILY MX <= 110.4 lb/d all year
001Oxygen, dissolved [DO]MINIMUM >= 2 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 15 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 12.5 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 25 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 8.5 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 60 mg/L all year
001Solids, total suspendedMO AVG <= 25 lb/d all year
001Solids, total suspendedDAILY MX <= 50 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 8 mg/L Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 16 mg/L Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 6.7 lb/d Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 13.3 lb/d Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Nov, Dec
001Phosphorus, total [as P]MO AVG <= 5.76 mg/L all year
001Phosphorus, total [as P]DAILY MX <= 11.52 mg/L all year
001Phosphorus, total [as P]MO AVG <= 4.8 lb/d all year
001Phosphorus, total [as P]DAILY MX <= 9.6 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
001Chlorine, total residualMO AVG <= .5 mg/L all year
001Chlorine, total residualDAILY MX <= 1 mg/L all year
001Chlorine, total residualMO AVG <= .417 lb/d all year
001Chlorine, total residualDAILY MX <= .834 lb/d all year
001E. coli30DAVGEO <= 126 MPN/100mL all year
001E. coliDAILY MX <= 349 MPN/100mL all year
001E. coli30DAVGEO <= 126 MPN/100mL all year
001E. coliDAILY MX <= 800 MPN/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

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