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NPDES permit SC0034444 · Minor NON-POTW · effective, expires 2030-07-31 · 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.

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

5values over a limit
0required values missing, on 0 form(s)
1of 15 forms filed late

Last period with anything received: 2026-07-31. Most often over: Copper, total [as Cu] (4), BOD, 5-day, 20 deg. C (1).

Reporting

Reports are due about 29 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (45)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 6 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 <= 9.38 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 18.77 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 <= 18.77 lb/d all year
001Solids, total suspendedDAILY MX <= 37.53 lb/d all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.2 mg/L Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 2.25 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 2.4 mg/L Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 4.5 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= .75 lb/d Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 1.41 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 1.5 lb/d Mar, Apr, May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 2.81 lb/d Jan, Feb, Nov, Dec
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]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
001Copper, total [as Cu]MO AVG <= .0104 mg/L all year
001Copper, total [as Cu]DAILY MX <= .0136 mg/L all year
001Copper, total [as Cu]MO AVG <= .0065 lb/d all year
001Copper, total [as Cu]DAILY MX <= .0085 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 <= .012 mg/L all year
001Chlorine, total residualDAILY MX <= .021 mg/L all year
001Chlorine, total residualMO AVG <= .008 lb/d all year
001Chlorine, total residualDAILY MX <= .013 lb/d all year
001E. coli30DAVGEO <= 126 MPN/100mL all year
001E. coliDAILY MX <= 349 MPN/100mL all year
001E. coliMO AVG <= 126 MPN/100mL all year
001E. coliDAILY MX <= 800 MPN/100mL all year
001LC50 Static 48Hr Acute Ceriodaphnia dubiaDAILY MN 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
001IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaDAILY MN 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