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(Unknown Permittee)

Dwelling Operators, Except Apartments, Westminster, South Carolina. NPDES permit SC0022357 expired Sep 30, 2018; its limits still apply. Last 12 months: over a limit 2 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form 1 monthly (31 values), form 2 twice a year
Last report on file
August 2026
Oct 2024 – Sep 2025
8 values over a limit, 0 required values missing, 0 of 14 reports late

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

Period endingParameterReportedLimitOver by
March 2026BOD, 5-day, 20 deg. C, daily maximum41.1≤ 30 mg/L37%
March 2026BOD, 5-day, 20 deg. C, monthly average17.83≤ 15 mg/L19%

Limits in force (37)

ParameterStatisticLimitMonths
Oxygen demand, ultimatemonthly average≤ 55.2 lb/dall year
Oxygen demand, ultimatedaily maximum≤ 110.4 lb/dall year
Oxygen, dissolved [DO]minimum≥ 2 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 12.5 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 25 lb/dall year
pHminimum≥ 6 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 60 mg/Lall year
Solids, total suspendedmonthly average≤ 25 lb/dall year
Solids, total suspendeddaily maximum≤ 50 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 8 mg/LMar–Oct
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 16 mg/LMar–Oct
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 6.7 lb/dMar–Oct
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)Jan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 13.3 lb/dMar–Oct
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)Jan, Feb, Nov, Dec
Phosphorus, total [as P]monthly average≤ 5.76 mg/Lall year
Phosphorus, total [as P]daily maximum≤ 11.52 mg/Lall year
Phosphorus, total [as P]monthly average≤ 4.8 lb/dall year
Phosphorus, total [as P]daily maximum≤ 9.6 lb/dall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .5 mg/Lall year
Chlorine, total residualdaily maximum≤ 1 mg/Lall year
Chlorine, total residualmonthly average≤ .417 lb/dall year
Chlorine, total residualdaily maximum≤ .834 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
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average≤ 25 %all year
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum≤ 40 %all year

How strict are these limits?

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

Same industry: the 27 Real Estate permits in South Carolina.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/SC0022357 · MCP: https://passage-data.com/mcp