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Christie Weidenhof

Sewage treatment plant, Norway, South Carolina. NPDES permit SC0045993 expired Sep 30, 2019; its limits still apply. Last 12 months: over a limit once (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form 1 monthly (29 values), form 2 quarterly (4 values), form 3 yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 1 of 17 reports late

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

Period endingParameterReportedLimitOver by
June 2026%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia, monthly average35≤ 25 %40%

Limits in force (39)

ParameterStatisticLimitMonths
Oxygen demand, ultimatemonthly average≤ 76.8 lb/dall year
Oxygen demand, ultimateweekly average≤ 115 lb/dall year
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 60 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 41 lb/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 62 lb/dall 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≤ 124 lb/dall year
Solids, total suspendedweekly average≤ 186 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 5.79 mg/LMar–Oct
Nitrogen, ammonia total [as N]monthly average≤ 12.36 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 8.69 mg/LMar–Oct
Nitrogen, ammonia total [as N]weekly average≤ 18.54 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 8 lb/dMar–Oct
Nitrogen, ammonia total [as N]monthly average≤ 17 lb/dJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 12 lb/dMar–Oct
Nitrogen, ammonia total [as N]weekly average≤ 26 lb/dJan, Feb, Nov, Dec
Copper, total [as Cu]monthly average≤ .028 mg/Lall year
Copper, total [as Cu]daily maximum≤ .037 mg/Lall year
Copper, total [as Cu]monthly average≤ .039 lb/dall year
Copper, total [as Cu]daily maximum≤ .051 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≤ .032 mg/Lall year
Chlorine, total residualdaily maximum≤ .055 mg/Lall year
Chlorine, total residualmonthly average≤ .044 lb/dall year
Chlorine, total residualdaily maximum≤ .076 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≥ 65 %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

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/SC0045993 · MCP: https://passage-data.com/mcp