Passage Data · Check a report · Use it from your AI

City of Northport

Sewage treatment plant, major discharger, Northport, Alabama. NPDES permit AL0064394 expired Nov 30, 2025; its limits still apply. Last 12 months: over a limit 18 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form 1 monthly (47 values), outfall 002 form S yearly, outfall 003 form S yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
8 values over a limit, 0 required values missing, 0 of 15 reports late

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

All 18 values over a limit
Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], monthly average1.2≤ 1 mg/L20%
October 2025Nitrogen, ammonia total [as N], weekly average3≤ 1.5 mg/L100%
March 2026Copper, total recoverable, daily maximum24.9≤ 20.4 ug/L22%
March 2026Copper, total recoverable, monthly average18≤ 15 ug/L20%
April 2026Nitrogen, ammonia total [as N], monthly average177≤ 125 lb/d42%
April 2026Nitrogen, ammonia total [as N], monthly average9.5≤ 3 mg/L217%
April 2026Nitrogen, ammonia total [as N], weekly average17.4≤ 4.5 mg/L287%
April 2026Nitrogen, ammonia total [as N], weekly average309≤ 187 lb/d65%
May 2026BOD, carbonaceous [5 day, 20 C], monthly average5.2≤ 4 mg/L30%
May 2026BOD, carbonaceous [5 day, 20 C], weekly average7.5≤ 6 mg/L25%
May 2026Nitrogen, ammonia total [as N], monthly average12.8≤ 1 mg/L1180%
May 2026Nitrogen, ammonia total [as N], monthly average320≤ 41.7 lb/d667%
May 2026Nitrogen, ammonia total [as N], weekly average14.5≤ 1.5 mg/L867%
May 2026Nitrogen, ammonia total [as N], weekly average404≤ 62.5 lb/d546%
June 2026Nitrogen, ammonia total [as N], monthly average3.3≤ 1 mg/L230%
June 2026Nitrogen, ammonia total [as N], monthly average62≤ 41.7 lb/d49%
June 2026Nitrogen, ammonia total [as N], weekly average10.7≤ 1.5 mg/L613%
June 2026Nitrogen, ammonia total [as N], weekly average197≤ 62.5 lb/d215%

Limits in force (82)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMay–Nov001
Oxygen, dissolved [DO]daily minimum≥ 6 mg/LJan, Feb, Mar, Apr, Dec001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 8.5 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 1251 lb/dall year001
Solids, total suspendedweekly average≤ 1876 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≤ 3 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LMay–Nov001
Nitrogen, ammonia total [as N]weekly average≤ 4.5 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≤ 125 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 41.7 lb/dMay–Nov001
Nitrogen, ammonia total [as N]weekly average≤ 187 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 62.5 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
Zinc, total recoverablemonthly average≤ 223 ug/Lall year001
Zinc, total recoverabledaily maximum≤ 223 ug/Lall year001
Copper, total recoverablemonthly average≤ 15 ug/Lall year001
Copper, total recoverabledaily maximum≤ 20.4 ug/Lall 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≤ .013 mg/Lall year001
Chlorine, total residualdaily maximum≤ .022 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
Toxicity [chronic], Ceriodaphnia dubiasingle sample≤ 0 pass=0;fail=1Nov001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]single sample≤ 0 pass=0;fail=1Nov001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 15 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 22.5 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 6 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 625 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 166 lb/dMay–Nov001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 938 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 250 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.

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AL0064394 · MCP: https://passage-data.com/mcp