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National Water Infrastructure, LLC - Seven Oaks Flea Market

Sewerage Systems, Prairieville, Louisiana. NPDES permit LA0122505, in force until Apr 30, 2029. Last 12 months: over a limit 6 times (last October 2025). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 89 days after each period: outfall 001 form A quarterly (8 values), outfall 001 form Q quarterly (6 values), outfall 101 form A quarterly (24 values), outfall 102 form A quarterly (24 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
33 values over a limit, 0 required values missing, 1 of 40 reports late

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

Period endingOutfallParameterReportedLimitOver by
October 2025001Coliform, fecal general, daily maximum1840 #/100mL≤ 400 #/100mL360%
October 2025001Coliform, fecal general, monthly geometric mean1840 #/100mL≤ 200 #/100mL820%
October 2025101BOD, carbonaceous [5 day, 20 C], monthly average15 mg/L≤ 10 mg/L50%
October 2025101Solids, total suspended, daily maximum63 mg/L≤ 23 mg/L174%
October 2025101Solids, total suspended, monthly average63 mg/L≤ 15 mg/L320%
October 2025101Solids, total suspended, monthly average8.4 lb/d≤ 6 lb/d40%

Limits in force (62)

ParameterStatisticLimitMonthsOutfall
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]weekly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly 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
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year001
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year001
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year001
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year001
Solids, total suspendedmonthly average≤ 15 mg/Lall year101
Solids, total suspendedmonthly average≤ 15 mg/Lall year101
Solids, total suspendeddaily maximum≤ 23 mg/Lall year101
Solids, total suspendeddaily maximum≤ 23 mg/Lall year101
Solids, total suspendedmonthly average≤ 6 lb/dall year101
Solids, total suspendedmonthly average≤ 6 lb/dall year101
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/Lall year101
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/Lall year101
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/Lall year101
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/Lall year101
Nitrogen, ammonia total [as N]monthly average≤ 2 lb/dall year101
Nitrogen, ammonia total [as N]monthly average≤ 2 lb/dall year101
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
Chlorine, total residualinstantaneous maximumreport only (mg/L)all year101
Chlorine, total residualinstantaneous maximumreport only (mg/L)all year101
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year101
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year101
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 15 mg/Lall year101
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 15 mg/Lall year101
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4 lb/dall year101
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4 lb/dall year101
Solids, total suspendedmonthly average≤ 15 mg/Lall year102
Solids, total suspendedmonthly average≤ 15 mg/Lall year102
Solids, total suspendeddaily maximum≤ 23 mg/Lall year102
Solids, total suspendeddaily maximum≤ 23 mg/Lall year102
Solids, total suspendedmonthly average≤ 6 lb/dall year102
Solids, total suspendedmonthly average≤ 6 lb/dall year102
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/Lall year102
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/Lall year102
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/Lall year102
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/Lall year102
Nitrogen, ammonia total [as N]monthly average≤ 2 lb/dall year102
Nitrogen, ammonia total [as N]monthly average≤ 2 lb/dall year102
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year102
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year102
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year102
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year102
Chlorine, total residualinstantaneous maximumreport only (mg/L)all year102
Chlorine, total residualinstantaneous maximumreport only (mg/L)all year102
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year102
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year102
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 15 mg/Lall year102
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 15 mg/Lall year102
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4 lb/dall year102
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4 lb/dall year102

New limits from May 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Chlorine, total residual, instantaneous maximum outfall 1010.033 mg/Lnew3 mg/L (9 values)90.9×
Chlorine, total residual, instantaneous maximum outfall 1020.033 mg/Lnew5 mg/L (9 values)152×

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/LA0122505 · MCP: https://passage-data.com/mcp