St Francisville Town of - STP

NPDES permit LA0032999 · Minor POTW · effective, expires 2030-10-31 · EPA's file as of 2026-09-26

Keep this permit as a site — opens New site at EPA's facility point (30.772817, -91.392839); you set the radius.

These are the last limits EPA's file holds for this permit, from an earlier version of it (version 0 in EPA's file): its current version carries none yet. Read your permit: a renewal can change them.

EPA's record, 2025-09-01 to 2026-08-31

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

• Outfall 001, form A (Monthly - Treated Sanitary Wastewater (design capacity 0.3 MGD)): every 3 month(s), 32 values
• Outfall 001, form Q (Quarterly - Treated Sanitary Wastewater (design capacity 0.3 MGD)): files for periods ending in Mar, Jun, Sep, Dec
• Outfall 001, form Y (Yearly - Treated Sanitary Wastewater (design capacity 0.3 MGD)): files for periods ending in Dec

How strict are these limits?

Each concentration limit against the same limit in comparable permits. Where it appears more than once, its strictest value.

• Solids, total suspended, monthly average 20 mg/L — stricter than 24% of 231 other minor POTWs in Louisiana; 2% have the same limit
• Solids, total suspended, weekly average 30 mg/L — stricter than 20% of 216 other minor POTWs in Louisiana; 2% have the same limit
• Chlorine, total residual, instantaneous maximum .033 mg/L — stricter than 12% of 55 other minor POTWs in Louisiana; 87% have the same limit
• Oxygen, dissolved [DO], monthly average minimum at least 5 mg/L — stricter than 6% of 61 other minor POTWs in Louisiana; 72% have the same limit
• BOD, carbonaceous [5 day, 20 C], monthly average 20 mg/L — stricter than 2% of 113 other minor POTWs in Louisiana; 4% have the same limit
• BOD, carbonaceous [5 day, 20 C], weekly average 30 mg/L — stricter than 1% of 108 other minor POTWs in Louisiana; 3% have the same limit
• Nitrogen, ammonia total [as N], monthly average 10 mg/L — stricter than 1% of 110 other minor POTWs in Louisiana; 13% have the same limit
• Nitrogen, ammonia total [as N], weekly average 20 mg/L — stricter than 1% of 101 other minor POTWs in Louisiana; 13% have the same limit
• BOD, 5-day, 20 deg. C, weekly average 45 mg/L — stricter than 0% of 105 other minor POTWs in Louisiana; 37% have the same limit
• BOD, 5-day, 20 deg. C, monthly average 30 mg/L — stricter than 0% of 115 other minor POTWs in Louisiana; 40% have the same limit
• pH, instantaneous maximum 9 SU — stricter than 0% of 235 other minor POTWs in Louisiana; 98% have the same limit
• pH, instantaneous minimum at least 6 SU — stricter than 0% of 236 other minor POTWs in Louisiana; 100% have the same limit
• BOD, percent removal [total], monthly average minimum at least 85 % — stricter than 0% of 30 other minor POTWs in Louisiana; 100% have the same limit
• Coliform, fecal general, monthly geometric mean 200 #/100mL — stricter than 0% of 209 other minor POTWs in Louisiana; 100% have the same limit
• Coliform, fecal general, WE 400 #/100mL — stricter than 0% of 197 other minor POTWs in Louisiana; 100% have the same limit
• Solids, suspended percent removal, monthly average minimum at least 85 % — stricter than 0% of 53 other minor POTWs in Louisiana; 100% have the same limit

Limits in force (58)

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states