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Keowee Key Utility Systems Inc WWTP

Dwelling Operators, Except Apartments, Salem, South Carolina. NPDES permit SC0022322 expired Nov 30, 2019; its limits still apply. Last 12 months: over a limit once (last November 2025). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form 1 monthly (33 values), form 2 quarterly
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 16 reports late

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

Period endingParameterReportedLimitOver by
November 2025Phosphorus, total [as P], daily maximum.488≤ .4 mg/L22%

Limits in force (41)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 5 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≤ 113 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 226 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≤ 225 lb/dall year
Solids, total suspendeddaily maximum≤ 450 lb/dall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, total [as N]daily maximumreport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ 4.29 mg/LMar–Oct
Nitrogen, ammonia total [as N]monthly average≤ 7.34 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 8.58 mg/LMar–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 14.68 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 32 lb/dMar–Oct
Nitrogen, ammonia total [as N]monthly average≤ 55 lb/dJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 64 lb/dMar–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 110 lb/dJan, Feb, Nov, Dec
Phosphorus, total [as P]monthly average≤ .2 mg/Lall year
Phosphorus, total [as P]daily maximum≤ .4 mg/Lall year
Phosphorus, total [as P]monthly average≤ 1.5 lb/dall year
Phosphorus, total [as P]daily maximum≤ 3 lb/dall year
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year
Hardness, total [as CaCO3]monthly averagereport only (lb/d)all year
Hardness, total [as CaCO3]daily maximumreport only (lb/d)all 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≤ .046 mg/Lall year
Chlorine, total residualdaily maximum≤ .08 mg/Lall year
Chlorine, total residualmonthly average≤ .35 lb/dall year
Chlorine, total residualdaily maximum≤ .6 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

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/SC0022322 · MCP: https://passage-data.com/mcp