BERKELEY COUNTY WATER & SANITATION AUTHORITY

NPDES permit SC0039764 · Minor POTW · effective, expires 2030-04-30 · 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.

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

0values over a limit
4required values missing, on 1 form(s)
0of 20 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 (61)

OutfallParameterStatisticLimitMonths
002Oxygen demand, ultimateMO AVG <= 3788 lb/d all year
002Oxygen demand, ultimateWKLY AVG report only all year
002Oxygen, dissolved [DO]MINIMUM >= 5 mg/L all year
002BOD, 5-day, 20 deg. CMO AVG <= 20 mg/L all year
002BOD, 5-day, 20 deg. CWKLY AVG <= 30 mg/L all year
002BOD, 5-day, 20 deg. CMO AVG <= 1001 lb/d all year
002BOD, 5-day, 20 deg. CWKLY AVG <= 1501 lb/d all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 8.5 SU all year
002Solids, total suspendedMO AVG <= 30 mg/L all year
002Solids, total suspendedWKLY AVG <= 45 mg/L all year
002Solids, total suspendedMO AVG <= 1501 lb/d all year
002Solids, total suspendedWKLY AVG <= 2252 lb/d all year
002Nitrogen, total [as N]MO AVG report only all year
002Nitrogen, total [as N]WKLY AVG report only all year
002Nitrogen, total [as N]MO AVG report only all year
002Nitrogen, total [as N]WKLY AVG report only all year
002Nitrogen, ammonia total [as N]MO AVG <= 10 mg/L all year
002Nitrogen, ammonia total [as N]WKLY AVG <= 15 mg/L all year
002Nitrogen, ammonia total [as N]MO AVG <= 500 lb/d all year
002Nitrogen, ammonia total [as N]WKLY AVG <= 751 lb/d all year
002Phosphorus, total [as P]MO AVG report only all year
002Phosphorus, total [as P]WKLY AVG report only all year
002Phosphorus, total [as P]MO AVG report only all year
002Phosphorus, total [as P]WKLY AVG report only all year
002Cadmium, total [as Cd]MO AVG report only all year
002Cadmium, total [as Cd]DAILY MX report only all year
002Cadmium, total [as Cd]MO AVG report only all year
002Cadmium, total [as Cd]DAILY MX report only all year
002Copper, total [as Cu]MO AVG report only all year
002Copper, total [as Cu]DAILY MX report only all year
002Copper, total [as Cu]MO AVG report only all year
002Copper, total [as Cu]DAILY MX report only all year
002Lead, total [as Pb]MO AVG report only all year
002Lead, total [as Pb]DAILY MX report only all year
002Lead, total [as Pb]MO AVG report only all year
002Lead, total [as Pb]DAILY MX report only all year
002Zinc, total [as Zn]MO AVG report only all year
002Zinc, total [as Zn]DAILY MX report only all year
002Zinc, total [as Zn]MO AVG report only all year
002Zinc, total [as Zn]DAILY MX report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantWKLY AVG report only all year
002Chlorine, total residualMO AVG <= .5 mg/L all year
002Chlorine, total residualDAILY MX <= 1 mg/L all year
002Chlorine, total residualMO AVG <= 25 lb/d all year
002Chlorine, total residualDAILY MX <= 50 lb/d all year
002E. coli30DAVGEO <= 126 MPN/100mL all year
002E. coliDAILY MX <= 349 MPN/100mL all year
002E. coli30DAVGEO <= 126 MPN/100mL all year
002E. coliDAILY MX <= 800 MPN/100mL all year
002Mercury, total [as Hg]MO AVG report only all year
002Mercury, total [as Hg]DAILY MX report only all year
002Mercury, total [as Hg]MO AVG report only all year
002Mercury, total [as Hg]DAILY MX report only all year
002BOD, 5-day, percent removalMO AV MN >= 85 % all year
002Solids, suspended percent removalMO AV MN >= 85 % all year
002LC50 Static 48Hr Acute Ceriodaphnia dubiaDAILY MN report only all year
002%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AVG <= 25 % all year
002%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiaDAILY MX <= 40 % all year
002IC25 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