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

City of Calera

Sewage treatment plant, major discharger, Calera, Alabama. NPDES permit AL0074608, in force until Nov 30, 2029. Last 12 months: over a limit 19 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form 2 monthly (43 values), outfall 001 form Q quarterly (8 values), outfall 002 form S yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 0 of 17 reports late

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

All 19 values over a limit
Period endingParameterReportedLimitOver by
December 2025Nitrogen, ammonia total [as N], monthly average3.46≤ 2 mg/L73%
December 2025Nitrogen, ammonia total [as N], weekly average3.51≤ 3 mg/L17%
January 2026Nitrogen, ammonia total [as N], monthly average4.21≤ 2 mg/L111%
January 2026Nitrogen, ammonia total [as N], weekly average6.25≤ 3 mg/L108%
February 2026Nitrogen, ammonia total [as N], monthly average4≤ 2 mg/L100%
February 2026Nitrogen, ammonia total [as N], weekly average5.03≤ 3 mg/L68%
March 2026Nitrogen, ammonia total [as N], monthly average4≤ 2 mg/L100%
March 2026Nitrogen, ammonia total [as N], weekly average4.33≤ 3 mg/L44%
April 2026Nitrogen, ammonia total [as N], monthly average4.35≤ 2 mg/L118%
April 2026Nitrogen, ammonia total [as N], weekly average5.16≤ 3 mg/L72%
May 2026Nitrogen, ammonia total [as N], monthly average3.94≤ 1 mg/L294%
May 2026Nitrogen, ammonia total [as N], weekly average4.8≤ 1.5 mg/L220%
June 2026Copper, total recoverable, monthly average14.3≤ 12.7 ug/L13%
June 2026Nitrogen, ammonia total [as N], monthly average3.96≤ 1 mg/L296%
June 2026Nitrogen, ammonia total [as N], weekly average4≤ 1.5 mg/L167%
July 2026Nitrogen, ammonia total [as N], monthly average3.79≤ 1 mg/L279%
July 2026Nitrogen, ammonia total [as N], weekly average4.13≤ 1.5 mg/L175%
August 2026Nitrogen, ammonia total [as N], monthly average2.87≤ 1 mg/L187%
August 2026Nitrogen, ammonia total [as N], weekly average3.96≤ 1.5 mg/L164%

Limits in force (74)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year001
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≤ 875 lb/dall year001
Solids, total suspendedweekly average≤ 1313 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≤ 1 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 1.5 mg/LMay–Nov001
Nitrogen, ammonia total [as N]weekly average≤ 3 mg/LJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 29.1 lb/dMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 58.3 lb/dJan, Feb, Mar, Apr, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 43.7 lb/dMay–Nov001
Nitrogen, ammonia total [as N]weekly average≤ 87.5 lb/dJan, Feb, Mar, Apr, Dec001
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
Thallium, total recoverablemonthly averagereport only (ug/L)all year001
Thallium, total recoverabledaily maximumreport only (ug/L)all year001
Zinc, total recoverablemonthly averagereport only (ug/L)all year001
Zinc, total recoverabledaily maximumreport only (ug/L)all year001
Copper, total recoverablemonthly average≤ 12.7 ug/Lall year001
Copper, total recoverabledaily maximum≤ 18 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≤ .011 mg/Lall year001
Chlorine, total residualdaily maximum≤ .019 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
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≤ 12 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 7 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 18 mg/LJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 10.5 mg/LMay–Nov001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 350 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 204 lb/dMay–Nov001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 525 lb/dJan, Feb, Mar, Apr, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 306 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

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/AL0074608 · MCP: https://passage-data.com/mcp