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York City of

Sewage treatment plant, major discharger, York, South Carolina. NPDES permit SC0038156 expired Jun 30, 2026; its limits still apply. Last 12 months: over a limit 2 times (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form 1 monthly (49 values), form 1A monthly (48 values), form 2 quarterly (2 values), form 2A quarterly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 0 of 32 reports late

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

Period endingParameterReportedLimitOver by
April 2026BOD, 5-day, 20 deg. C, weekly average70.3≤ 35 mg/L101%
May 2026E. coli, daily maximum2419≤ 349 MPN/100mL593%

Limits in force (109)

ParameterStatisticLimitMonths
Oxygen demand, ultimatemonthly average≤ 1407 lb/dall year
Oxygen demand, ultimatemonthly average≤ 1102 lb/dall year
Oxygen demand, ultimateweekly average≤ 2111 lb/dall year
Oxygen demand, ultimateweekly average≤ 1653 lb/dall year
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 23 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 22 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 35 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 33 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 575 lb/dall year
BOD, 5-day, 20 deg. Cmonthly average≤ 734 lb/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 876 lb/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 1101 lb/dall year
pHminimum≥ 6 SUall year
pHminimum≥ 6 SUall year
pHmaximum≤ 8.5 SUall year
pHmaximum≤ 85 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 1001 lb/dall year
Solids, total suspendedmonthly average≤ 751 lb/dall year
Solids, total suspendedweekly average≤ 1502 lb/dall year
Solids, total suspendedweekly average≤ 1127 lb/dall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all 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]weekly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)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, total [as N]weekly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ 4.79 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 2.47 mg/LMar–Oct
Nitrogen, ammonia total [as N]monthly average≤ 2.4 mg/LMar–Oct
Nitrogen, ammonia total [as N]monthly average≤ 4.93 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 7.18 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 3.71 mg/LMar–Oct
Nitrogen, ammonia total [as N]weekly average≤ 3.6 mg/LMar–Oct
Nitrogen, ammonia total [as N]weekly average≤ 7.39 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 160 lb/dJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 87 lb/dMar–Oct
Nitrogen, ammonia total [as N]monthly average≤ 80 lb/dMar–Oct
Nitrogen, ammonia total [as N]monthly average≤ 148 lb/dJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 240 lb/dJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 131 lb/dMar–Oct
Nitrogen, ammonia total [as N]weekly average≤ 120 lb/dMar–Oct
Nitrogen, ammonia total [as N]weekly average≤ 222 lb/dJan, Feb, Nov, Dec
Phosphorus, total [as P]monthly average≤ 2 mg/Lall year
Phosphorus, total [as P]monthly average≤ 2 mg/Lall year
Phosphorus, total [as P]weekly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly average≤ 2002 lb/dall year
Phosphorus, total [as P]monthly average≤ 2002 lb/dall year
Phosphorus, total [as P]monthly average≤ 6205 lb/dall year
Phosphorus, total [as P]monthly average≤ 6205 lb/dall year
Cyanide, total [as CN]monthly average≤ .006 mg/Lall year
Cyanide, total [as CN]monthly average≤ .006 mg/Lall year
Cyanide, total [as CN]daily maximum≤ .025 mg/Lall year
Cyanide, total [as CN]daily maximum≤ .024 mg/Lall year
Cyanide, total [as CN]monthly average≤ .15 lb/dall year
Cyanide, total [as CN]monthly average≤ .2 lb/dall year
Cyanide, total [as CN]daily maximum≤ .63 lb/dall year
Cyanide, total [as CN]daily maximum≤ .8 lb/dall year
Cadmium, total [as Cd]monthly average≤ .0004 mg/Lall year
Cadmium, total [as Cd]monthly average≤ .0004 mg/Lall year
Cadmium, total [as Cd]daily maximum≤ .0022 mg/Lall year
Cadmium, total [as Cd]daily maximum≤ .0021 mg/Lall year
Cadmium, total [as Cd]monthly average≤ .01 lb/dall year
Cadmium, total [as Cd]monthly average≤ .013 lb/dall year
Cadmium, total [as Cd]daily maximum≤ .055 lb/dall year
Cadmium, total [as Cd]daily maximum≤ .07 lb/dall year
Copper, total [as Cu]monthly average≤ .011 mg/Lall year
Copper, total [as Cu]monthly average≤ .011 mg/Lall year
Copper, total [as Cu]daily maximum≤ .014 mg/Lall year
Copper, total [as Cu]daily maximum≤ .014 mg/Lall year
Copper, total [as Cu]monthly average≤ .28 lb/dall year
Copper, total [as Cu]monthly average≤ .37 lb/dall year
Copper, total [as Cu]daily maximum≤ .35 lb/dall year
Copper, total [as Cu]daily maximum≤ .47 lb/dall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all 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
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all year
Chlorine, total residualmonthly average≤ .012 mg/Lall year
Chlorine, total residualmonthly average≤ .012 mg/Lall year
Chlorine, total residualdaily maximum≤ .022 mg/Lall year
Chlorine, total residualweekly average≤ .021 mg/Lall year
Chlorine, total residualmonthly average≤ .3 lb/dall year
Chlorine, total residualmonthly average≤ .4 lb/dall year
Chlorine, total residualdaily maximum≤ .55 lb/dall year
Chlorine, total residualdaily maximum≤ .7 lb/dall year
E. coli30-day geometric mean≤ 126 MPN/100mLall year
E. coli30-day geometric mean≤ 126 MPN/100mLall year
E. colidaily maximum≤ 349 MPN/100mLall year
E. colidaily maximum≤ 349 MPN/100mLall year
E. coli30-day geometric mean≤ 126 MPN/100mLall year
E. coli30-day geometric mean≤ 126 MPN/100mLall year
E. colidaily maximum≤ 800 MPN/100mLall year
E. colidaily maximum≤ 800 MPN/100mLall year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average≤ 25 %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
%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/SC0038156 · MCP: https://passage-data.com/mcp