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Bowman Town of

Sewage treatment plant, Bowman, South Carolina. NPDES permit SC0040037 expired Oct 31, 2023; its limits still apply. Last 12 months: over a limit 25 times (last August 2026), 3 of 15 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form 1 monthly (29 values), form 2 quarterly
Last report on file
August 2026
Oct 2024 – Sep 2025
41 values over a limit, 0 required values missing, 3 of 16 reports late

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

All 25 values over a limit
Period endingParameterReportedLimitOver by
October 2025Copper, total [as Cu], daily maximum.033≤ .031 mg/L6%
October 2025Copper, total [as Cu], monthly average.033≤ .023 mg/L43%
October 2025Solids, suspended percent removal, monthly average minimum11≥ 65 %154%
November 2025Chlorine, total residual, daily maximum.23≤ .09 lb/d156%
November 2025Chlorine, total residual, daily maximum.3≤ .044 mg/L582%
November 2025Chlorine, total residual, monthly average.12≤ .05 lb/d140%
November 2025Chlorine, total residual, monthly average.15≤ .025 mg/L500%
November 2025E. coli, daily maximum> 2420≤ 349 MPN/100mL—
December 2025E. coli, 30-day geometric mean> 345≤ 126 MPN/100mL—
December 2025E. coli, daily maximum> 2420≤ 349 MPN/100mL—
December 2025Solids, suspended percent removal, monthly average minimum47≥ 65 %51%
January 2026Copper, total [as Cu], daily maximum.042≤ .031 mg/L35%
January 2026Copper, total [as Cu], monthly average.042≤ .023 mg/L83%
March 2026Solids, suspended percent removal, monthly average minimum-36≥ 65 %289%
April 2026Copper, total [as Cu], monthly average.027≤ .023 mg/L17%
April 2026Solids, suspended percent removal, monthly average minimum16≥ 65 %140%
May 2026Nitrogen, ammonia total [as N], monthly average8.2≤ 4.4 mg/L86%
May 2026Nitrogen, ammonia total [as N], weekly average9.9≤ 6.6 mg/L50%
May 2026Solids, suspended percent removal, monthly average minimum50≥ 65 %43%
June 2026Solids, suspended percent removal, monthly average minimum0≥ 65 %186%
July 2026Copper, total [as Cu], monthly average.024≤ .023 mg/L4%
July 2026Solids, suspended percent removal, monthly average minimum15≥ 65 %143%
August 2026E. coli, 30-day geometric mean> 7≤ 126 MPN/100mL—
August 2026E. coli, daily maximum> 2419.6≤ 349 MPN/100mL—
August 2026Solids, suspended percent removal, monthly average minimum13≥ 65 %149%

Limits in force (33)

ParameterStatisticLimitMonths
Oxygen demand, ultimatemonthly average≤ 45.6 lb/dall year
Oxygen demand, ultimateweekly average≤ 68.4 lb/dall year
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 90 mg/Lall year
Solids, total suspendedweekly average≤ 135 mg/Lall year
Solids, total suspendedmonthly average≤ 177.1 lb/dall year
Solids, total suspendedweekly average≤ 265.7 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 4.4 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ 6.6 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 8.7 lb/dall year
Nitrogen, ammonia total [as N]weekly average≤ 13 lb/dall year
Copper, total [as Cu]monthly average≤ .023 mg/Lall year
Copper, total [as Cu]daily maximum≤ .031 mg/Lall year
Copper, total [as Cu]monthly average≤ .05 lb/dall year
Copper, total [as Cu]daily maximum≤ .06 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≤ .025 mg/Lall year
Chlorine, total residualdaily maximum≤ .044 mg/Lall year
Chlorine, total residualmonthly average≤ .05 lb/dall year
Chlorine, total residualdaily maximum≤ .09 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, carbonaceous [5 day, 20 C]monthly average≤ 15.1 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 22.6 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 29.7 lb/dall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 44.5 lb/dall year
Solids, suspended percent removalmonthly average minimum≥ 65 %all year
Carbonaceous oxygen demand, % removalmonthly average minimum≥ 65 %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/SC0040037 · MCP: https://passage-data.com/mcp