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Pickens County Public Service Commission

Sewage treatment plant, Central, South Carolina. NPDES permit SC0024996, in force until May 31, 2030. Last 12 months: over a limit 7 times (last April 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form 1 monthly (34 values), form 2 quarterly, form 3 yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
9 values over a limit, 0 required values missing, 3 of 17 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
January 2026BOD, 5-day, 20 deg. C, monthly average14.4≤ 10 mg/L44%
January 2026BOD, 5-day, 20 deg. C, weekly average22≤ 15 mg/L47%
February 2026BOD, 5-day, 20 deg. C, monthly average13.5≤ 10 mg/L35%
February 2026BOD, 5-day, 20 deg. C, weekly average28.5≤ 15 mg/L90%
April 2026BOD, 5-day, 20 deg. C, weekly average17.3≤ 15 mg/L15%
April 2026Nitrogen, ammonia total [as N], monthly average3.191≤ 2 mg/L60%
April 2026Nitrogen, ammonia total [as N], weekly average3.49≤ 3 mg/L16%

Limits in force (46)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 25 lb/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 38 lb/dall year
pHminimum≥ 6 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 75 lb/dall year
Solids, total suspendedweekly average≤ 113 lb/dall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]weekly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, total [as N]weekly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ 3 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 5 lb/dall year
Nitrogen, ammonia total [as N]weekly average≤ 7.5 lb/dall year
Phosphorus, total [as P]monthly average≤ 1 mg/Lall year
Phosphorus, total [as P]weekly average≤ 1.5 mg/Lall year
Phosphorus, total [as P]monthly average≤ 365 lb/dall year
Copper, total [as Cu]monthly average≤ .017 mg/Lall year
Copper, total [as Cu]daily maximum≤ .022 mg/Lall year
Copper, total [as Cu]monthly average≤ .04 lb/dall year
Copper, total [as Cu]daily maximum≤ .06 lb/dall year
Zinc, total [as Zn]monthly average≤ .18 mg/Lall year
Zinc, total [as Zn]daily maximum≤ .27 mg/Lall year
Zinc, total [as Zn]monthly average≤ .5 lb/dall year
Zinc, total [as Zn]daily maximum≤ .7 lb/dall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all year
Chlorine, total residualmonthly average≤ .021 mg/Lall year
Chlorine, total residualdaily maximum≤ .037 mg/Lall year
Chlorine, total residualmonthly average≤ .052 lb/dall year
Chlorine, total residualdaily maximum≤ .093 lb/dall year
E. coli30-day geometric mean≤ 126 MPN/100mLall year
E. colidaily maximum≤ 349 MPN/100mLall year
E. coli30-day geometric mean≤ 126 MPN/100mLall year
E. colidaily maximum≤ 800 MPN/100mLall year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
LC50 Static 48Hr Acute Ceriodaphnia dubiadaily minimumreport only (%)all year
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average≤ 25 %all year
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum≤ 40 %all year
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily minimumreport only (%)all year

How strict are these limits?

Cited limits by parameter: South Carolina's rules and the federal ones.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/SC0024996 · MCP: https://passage-data.com/mcp