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Livingston Parish Sewer District - Belmont Subdivision WTP

Sewerage Systems, Denham Springs, Louisiana. NPDES permit LA0127598, in force until Apr 19, 2027. Last 12 months: over a limit 32 times (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A quarterly (13 values), form Q quarterly (4 values)
Renewal application due
Oct 21, 2026 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
15 values over a limit, 2 required values missing, 0 of 16 reports late

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

All 32 values over a limit
Period endingParameterReportedLimitOver by
October 2025Coliform, fecal general, monthly geometric mean1000 #/100mL≤ 200 #/100mL400%
October 2025Coliform, fecal general, weekly geometric mean1000 #/100mL≤ 400 #/100mL150%
October 2025Solids, total suspended, monthly average54.8 mg/L≤ 15 mg/L265%
October 2025Solids, total suspended, weekly average54.8 mg/L≤ 23 mg/L138%
November 2025Solids, total suspended, monthly average25 mg/L≤ 15 mg/L67%
November 2025Solids, total suspended, weekly average25 mg/L≤ 23 mg/L9%
December 2025BOD, carbonaceous [5 day, 20 C], monthly average14.7 mg/L≤ 10 mg/L47%
December 2025Nitrogen, ammonia total [as N], monthly average22.6 mg/L≤ 2 mg/L1030%
December 2025Nitrogen, ammonia total [as N], weekly average22.6 mg/L≤ 4 mg/L465%
January 2026BOD, carbonaceous [5 day, 20 C], monthly average24.6 mg/L≤ 10 mg/L146%
January 2026BOD, carbonaceous [5 day, 20 C], weekly average24.6 mg/L≤ 15 mg/L64%
January 2026Coliform, fecal general, monthly geometric mean1000 #/100mL≤ 200 #/100mL400%
January 2026Coliform, fecal general, weekly geometric mean1000 #/100mL≤ 400 #/100mL150%
January 2026Nitrogen, ammonia total [as N], monthly average5.1 mg/L≤ 2 mg/L155%
January 2026Nitrogen, ammonia total [as N], weekly average5.1 mg/L≤ 4 mg/L28%
January 2026Solids, total suspended, monthly average39 mg/L≤ 15 mg/L160%
January 2026Solids, total suspended, weekly average39 mg/L≤ 23 mg/L70%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average86.4 mg/L≤ 10 mg/L764%
February 2026BOD, carbonaceous [5 day, 20 C], weekly average86.4 mg/L≤ 15 mg/L476%
February 2026Coliform, fecal general, monthly geometric mean1000 #/100mL≤ 200 #/100mL400%
February 2026Coliform, fecal general, weekly geometric mean1000 #/100mL≤ 400 #/100mL150%
February 2026Nitrogen, ammonia total [as N], monthly average37.6 mg/L≤ 2 mg/L1780%
February 2026Nitrogen, ammonia total [as N], weekly average37.6 mg/L≤ 4 mg/L840%
February 2026Solids, total suspended, monthly average34.7 mg/L≤ 15 mg/L131%
February 2026Solids, total suspended, weekly average34.7 mg/L≤ 23 mg/L51%
March 2026BOD, carbonaceous [5 day, 20 C], monthly average16.9 mg/L≤ 10 mg/L69%
March 2026BOD, carbonaceous [5 day, 20 C], weekly average16.9 mg/L≤ 15 mg/L13%
April 2026Coliform, fecal general, monthly geometric mean1000 #/100mL≤ 200 #/100mL400%
April 2026Coliform, fecal general, weekly geometric mean1000 #/100mL≤ 400 #/100mL150%
April 2026Solids, total suspended, monthly average21.7 mg/L≤ 15 mg/L45%
May 2026Coliform, fecal general, monthly geometric mean1000 #/100mL≤ 200 #/100mL400%
May 2026Coliform, fecal general, weekly geometric mean1000 #/100mL≤ 400 #/100mL150%

Limits in force (17)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly average minimum≥ 5 mg/Lall 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
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]weekly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ 4 mg/Lall year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]weekly averagereport only (mg/L)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
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/Lall 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/LA0127598 · MCP: https://passage-data.com/mcp