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North Baldwin Utilities

Sewage treatment plant, major discharger, Bay Minette, Alabama. NPDES permit AL0049867, in force until Dec 31, 2027. Last 12 months: over a limit once (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form 1 monthly (47 values)
Renewal application due
Jul 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 13 reports late

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

Period endingParameterReportedLimitOver by
July 2026Nitrogen, ammonia total [as N], weekly average3.5≤ 1.9 mg/L84%

Limits in force (59)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 500 lb/dall year
Solids, total suspendedweekly average≤ 750 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (lb/d)all year
Solids, total suspendedweekly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LMay–Nov
Nitrogen, ammonia total [as N]weekly average≤ 6 mg/LJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]weekly average≤ 1.9 mg/LMay–Nov
Nitrogen, ammonia total [as N]monthly average≤ 66.7 lb/dJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]monthly average≤ 21.6 lb/dMay–Nov
Nitrogen, ammonia total [as N]weekly average≤ 100 lb/dJan, Feb, Mar, Apr, Dec
Nitrogen, ammonia total [as N]weekly average≤ 32.5 lb/dMay–Nov
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]weekly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, Kjeldahl, total [as N]weekly averagereport only (lb/d)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]weekly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (lb/d)all year
Nitrite + Nitrate total [as N]weekly averagereport only (lb/d)all year
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
Zinc, total recoverablemonthly average= 197 ug/Lall year
Zinc, total recoverabledaily maximum= 197 ug/Lall year
Copper, total recoverablemonthly average= 12.7 ug/Lall year
Copper, total recoverabledaily maximum= 18 ug/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .011 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
E. colimonthly average≤ 548 #/100mLJan, Feb, Mar, Apr, Nov, Dec
E. colimonthly average≤ 126 #/100mLMay–Oct
E. colidaily maximum≤ 2507 #/100mLJan, Feb, Mar, Apr, Nov, Dec
E. colidaily maximum≤ 298 #/100mLMay–Oct
Toxicity [chronic], Ceriodaphnia dubiasingle sample≤ 0 pass=0;fail=1Oct
Toxicity [chronic], Pimephales promelas [Fathead Minnow]single sample≤ 0 pass=0;fail=1Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4 mg/LMay–Nov
BOD, carbonaceous [5 day, 20 C]monthly average≤ 13 mg/LJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 6 mg/LMay–Nov
BOD, carbonaceous [5 day, 20 C]weekly average≤ 19.5 mg/LJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 66.7 lb/dMay–Nov
BOD, carbonaceous [5 day, 20 C]monthly average≤ 216 lb/dJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 100 lb/dMay–Nov
BOD, carbonaceous [5 day, 20 C]weekly average≤ 325 lb/dJan, Feb, Mar, Apr, Dec
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]weekly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (lb/d)all year
BOD, carbonaceous [5 day, 20 C]weekly averagereport only (lb/d)all year
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AL0049867 · MCP: https://passage-data.com/mcp