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Water Works & Sewer Board of the City of Oxford

Sewage treatment plant, major discharger, Oxford, Alabama. NPDES permit AL0058408 expired Apr 30, 2025; its limits still apply. Last 12 months: over a limit once (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form 1 monthly (51 values), outfall 001 form A yearly, outfall 002 form S yearly, outfall 003 form S yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 19 reports late

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

Period endingParameterReportedLimit
August 2026Toxicity [chronic], Ceriodaphnia dubia, single sample1≤ 0 pass=0;fail=1

Limits in force (87)

ParameterStatisticLimitMonthsOutfall
Turbiditymonthly averagereport only (NTU)all year001
Turbiditydaily maximumreport only (NTU)all year001
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 1125 lb/dall year001
Solids, total suspendedweekly average≤ 1688 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedweekly averagereport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (lb/d)all year001
Solids, total suspendedweekly averagereport only (lb/d)all year001
Nitrogen, ammonia total [as N]monthly average≤ 20 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LMay–Nov001
Nitrogen, ammonia total [as N]weekly average≤ 30 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 1.5 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 750 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 37.5 lb/dMay–Nov001
Nitrogen, ammonia total [as N]weekly average≤ 1125 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 56.2 lb/dMay–Nov001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]weekly averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)all year001
Nitrogen, Kjeldahl, total [as N]weekly averagereport only (lb/d)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]weekly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (lb/d)all year001
Nitrite + Nitrate total [as N]weekly averagereport only (lb/d)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]weekly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Phosphorus, total [as P]weekly averagereport only (lb/d)all year001
Silver total recoverablemonthly averagereport only (ug/L)all year001
Silver total recoverabledaily maximumreport only (ug/L)all year001
Color [admi units]daily maximum≤ 80 col unitall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualmonthly average≤ .066 mg/Lall year001
Chlorine, total residualdaily maximum≤ .115 mg/Lall year001
E. colimonthly average≤ 126 #/100mLMay–Oct001
E. colimonthly average≤ 548 #/100mLJan, Feb, Mar, Apr, Nov, Dec001
E. colidaily maximum≤ 298 #/100mLMay–Oct001
E. colidaily maximum≤ 2507 #/100mLJan, Feb, Mar, Apr, Nov, Dec001
Cyanide, free availablemonthly average≤ 31.4 ug/Lall year001
Cyanide, free availabledaily maximum≤ 70.5 ug/Lall year001
Peracetic Aciddaily maximum≤ 1 mg/Lall year001
Toxicity [chronic], Ceriodaphnia dubiasingle sample≤ 0 pass=0;fail=1Feb, May, Aug, Nov001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]single sample≤ 0 pass=0;fail=1Feb, May, Aug, Nov001
Mercury, total recoverablemonthly averagereport only (ug/L)all year001
Mercury, total recoverabledaily maximumreport only (ug/L)all year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 8 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 37.5 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 12 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 938 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 300 lb/dMay–Nov001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 1407 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 450 lb/dMay–Nov001
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year001
BOD, carbonaceous [5 day, 20 C]weekly averagereport only (mg/L)all year001
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (lb/d)all year001
BOD, carbonaceous [5 day, 20 C]weekly averagereport only (lb/d)all year001
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
pHdaily minimumreport only (SU)all year002
pHdaily maximumreport only (SU)all year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year002
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
E. colidaily maximumreport only (#/100mL)all year002
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year002
pHdaily minimumreport only (SU)all year003
pHdaily maximumreport only (SU)all year003
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year003
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year003
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year003
Phosphorus, total [as P]daily maximumreport only (mg/L)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
E. colidaily maximumreport only (#/100mL)all year003
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year003

How strict are these limits?

Cited limits by parameter: Alabama'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/AL0058408 · MCP: https://passage-data.com/mcp