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

Town of Amite City- Amite City STP

Sewage treatment plant, major discharger, Amite, Louisiana. NPDES permit LA0038431 expired Jun 30, 2026; its limits still apply. Last 12 months: over a limit 8 times (last September 2026), 2 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (15 values), form DA quarterly (12 values), form PI quarterly (12 values), form Q quarterly (6 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 3 of 24 reports late

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

Period endingParameterReportedLimitOver by
November 2025Solids, total suspended, monthly average20.4 mg/L≤ 15 mg/L36%
November 2025Solids, total suspended, weekly average30.2 mg/L≤ 23 mg/L31%
December 2025BOD, 5-day, 20 deg. C, weekly average16 mg/L≤ 15 mg/L7%
February 2026BOD, 5-day, 20 deg. C, monthly average11.2 mg/L≤ 10 mg/L12%
February 2026BOD, 5-day, 20 deg. C, weekly average15.8 mg/L≤ 15 mg/L5%
July 2026BOD, 5-day, 20 deg. C, monthly average10.3 mg/L≤ 10 mg/L3%
July 2026BOD, 5-day, 20 deg. C, weekly average16.7 mg/L≤ 15 mg/L11%
September 2026BOD, 5-day, 20 deg. C, weekly average22.1 mg/L≤ 15 mg/L47%

Limits in force (45)

ParameterStatisticLimitMonths
Turbiditymonthly averagereport only (NTU)all year
Turbidityweekly averagereport only (NTU)all 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≤ 108 lb/dall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspendedweekly average≤ 23 mg/Lall year
Solids, total suspendedmonthly average≤ 163 lb/dall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #1monthly averagereport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #1monthly averagereport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #248-hour minimumreport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #248-hour minimumreport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #2monthly averagereport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #2monthly averagereport only (pass=0;fail=1)all 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 residualinstantaneous maximum< .033 mg/Lall year
Whole Effluent Toxicity - Retest #348-hour minimumreport only (pass=0;fail=1)all year
Whole Effluent Toxicity - Retest #348-hour minimumreport only (pass=0;fail=1)all year
Whole Effluent Toxicity - Retest #3monthly averagereport only (pass=0;fail=1)all year
Whole Effluent Toxicity - Retest #3monthly averagereport only (pass=0;fail=1)all year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48-hour minimumreport only (pass=0;fail=1)all year
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexmonthly averagereport only (pass=0;fail=1)all year
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (pass=0;fail=1)all year
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasmonthly averagereport only (pass=0;fail=1)all year
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48-hour minimumreport only (%)all year
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexmonthly averagereport only (%)all year
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48-hour minimumreport only (%)all year
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasmonthly averagereport only (%)all year
Coef Of Var Static Renewal 48Hr Acute D. pulex48-hour minimumreport only (%)all year
Coef Of Var Static Renewal 48Hr Acute D. pulexmonthly averagereport only (%)all year
Coef Of Var Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (%)all year
Coef Of Var Static Renewal 48Hr Acute Pimephales promelasmonthly averagereport only (%)all year

How strict are these limits?

Cited limits by parameter: Louisiana'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/LA0038431 · MCP: https://passage-data.com/mcp