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(Unknown Permittee)

Sewerage Systems, Lexington, South Carolina. NPDES permit SC0027162 expired Sep 30, 2014; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form 1 monthly (23 values), form 2 quarterly, form 4 twice a year
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 18 reports late

Limits in force (57)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 25 lb/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 38 lb/dall year
pHminimum≥ 6 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 74 lb/dall year
Solids, total suspendedweekly average≤ 111 lb/dall 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]monthly averagereport only (lb/d)all year
Nitrogen, total [as N]weekly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ 1.82 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.08 mg/LMar–Oct
Nitrogen, ammonia total [as N]weekly average≤ 2.73 mg/LJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 1.62 mg/LMar–Oct
Nitrogen, ammonia total [as N]monthly average≤ 4 lb/dJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 3 lb/dMar–Oct
Nitrogen, ammonia total [as N]weekly average≤ 6 lb/dJan, Feb, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 5 lb/dMar–Oct
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]weekly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]weekly averagereport only (lb/d)all year
Cadmium, total [as Cd]monthly average≤ .0003 mg/Lall year
Cadmium, total [as Cd]daily maximum≤ .0019 mg/Lall year
Cadmium, total [as Cd]monthly average≤ .0007 lb/dall year
Cadmium, total [as Cd]daily maximum≤ .0047 lb/dall year
Copper, total [as Cu]monthly average≤ .0097 mg/Lall year
Copper, total [as Cu]daily maximum≤ .013 mg/Lall year
Copper, total [as Cu]monthly average≤ .025 lb/dall year
Copper, total [as Cu]daily maximum≤ .032 lb/dall year
Lead, total [as Pb]monthly average≤ .003 mg/Lall year
Lead, total [as Pb]daily maximum≤ .083 mg/Lall year
Lead, total [as Pb]monthly average≤ .007 lb/dall year
Lead, total [as Pb]daily maximum≤ .204 lb/dall year
Zinc, total [as Zn]monthly average≤ .16 mg/Lall year
Zinc, total [as Zn]daily maximum≤ .16 mg/Lall year
Zinc, total [as Zn]monthly average≤ .392 lb/dall year
Zinc, total [as Zn]daily maximum≤ .392 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≤ .011 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
Chlorine, total residualmonthly average≤ .03 lb/dall year
Chlorine, total residualdaily maximum≤ .05 lb/dall year
Coliform, fecal general30-day geometric mean≤ 200 #/100mLall year
Coliform, fecal generaldaily maximum≤ 400 #/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
%Mortality 7Day Chronic Ceriodaphnia dubiamonthly averagereport only (%)all year
%Mortality 7Day Chronic Ceriodaphnia dubiadaily maximumreport only (%)all year
%Repro Reduc Static Renewal7D Chronic Ceriodaphnia dubiamonthly averagereport only (%)all year
%Repro Reduc Static Renewal7D Chronic Ceriodaphnia dubiadaily maximumreport only (%)all year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/SC0027162 · MCP: https://passage-data.com/mcp