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National Water Infrastructure, LLC - Meadow Oaks Subdivision

Sewerage Systems, Saint Gabriel, Louisiana. NPDES permit LA0127112, in force until Aug 14, 2028. Last 12 months: over a limit once (last November 2025). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 58 days after each period: form A quarterly (34 values), form Q quarterly (15 values)
Renewal application due
Feb 16, 2028 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 1 of 16 reports late

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

Period endingParameterReportedLimitOver by
November 2025BOD, carbonaceous [5 day, 20 C], monthly average6 mg/L≤ 5 mg/L20%

Limits in force (49)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly average minimum≥ 5 mg/Lall year
Oxygen, dissolved [DO]monthly average minimum≥ 5 mg/Lall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspendeddaily maximum≤ 23 mg/Lall year
Solids, total suspendeddaily maximum≤ 23 mg/Lall year
Solids, total suspendedmonthly average≤ 18.4 lb/dall year
Solids, total suspendedmonthly average≤ 18.4 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
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 4 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 4 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 2.5 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 2.5 lb/dall 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
Chloride [as Cl]monthly averagereport only (mg/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Chloride [as Cl]monthly averagereport only (lb/d)all year
Sulfate, total [as SO4]monthly averagereport only (mg/L)all year
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year
Sulfate, total [as SO4]monthly averagereport only (lb/d)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all 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
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualinstantaneous maximum≤ .033 mg/Lall year
Chlorine, total residualinstantaneous maximum≤ .033 mg/Lall year
Solids, total dissolvedmonthly averagereport only (mg/L)all year
Solids, total dissolveddaily maximumreport only (mg/L)all year
Solids, total dissolvedmonthly averagereport only (lb/d)all year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 5 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 6.1 lb/dall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 6.1 lb/dall year

How strict are these limits?

Cited limits by parameter: Louisiana'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/LA0127112 · MCP: https://passage-data.com/mcp