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Sewage treatment plant, Franklinton, Louisiana. NPDES permit LA0068101, in force until Sep 30, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | maximum | ≤ 100 mg/L (alert, not enforceable) | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L | all year | 002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 35 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year | 002 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 002 |
| Zinc, total [as Zn] | monthly average | ≤ .11 mg/L | all year | 002 |
| Zinc, total [as Zn] | daily maximum | ≤ .2 mg/L | all year | 002 |
| Phenol | monthly average | ≤ .015 mg/L | all year | 002 |
| Phenol | daily maximum | ≤ .026 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Chlorine, total residual | instantaneous maximum | report only (mg/L) | all year | 002 |
| .alpha.-Terpineol | monthly average | ≤ .016 mg/L | all year | 002 |
| .alpha.-Terpineol | daily maximum | ≤ .033 mg/L | all year | 002 |
| Priority pollutants scan [yes/no] | minimum | ≥ 1 N=0;Y=1 | all year | 002 |
| Solids, total dissolved | monthly average | report only (mg/L) | all year | 002 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 002 |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year | 002 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | 002 |
| p-Cresol | monthly average | ≤ .014 mg/L | all year | 002 |
| p-Cresol | daily maximum | ≤ .025 mg/L | all year | 002 |
| Benzoic acids, total | monthly average | ≤ .071 mg/L | all year | 002 |
| Benzoic acids, total | daily maximum | ≤ .12 mg/L | all year | 002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 003 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L (alert, not enforceable) | all year | 003 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 003 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 004 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L (alert, not enforceable) | all year | 004 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 004 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4.9 mg/L | all year | 02A |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10 mg/L | all year | 02A |
| Parameter | New limit | From | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|---|
| Solids, total dissolved, daily maximum outfall 002 | 1181 mg/L | Oct 1, 2027 | new | 2560 mg/L (3 values) | 2.17× |
| Solids, total dissolved, monthly average outfall 002 | 496 mg/L | Oct 1, 2027 | new | 2560 mg/L (3 values) | 5.16× |
| Chlorine, total residual, instantaneous maximum outfall 002 | 0.033 mg/L | Oct 1, 2027 | new | 0.1 mg/L (8 values, 4 below detection) | — |
| Zinc, total [as Zn], daily maximum outfall 002 | 0.11 mg/L | Oct 1, 2027 | tighter | — | — |
| Zinc, total [as Zn], monthly average outfall 002 | 0.045 mg/L | Oct 1, 2027 | tighter | — | — |
| Nitrogen, ammonia total [as N], daily maximum outfall 02A | 4.7 mg/L | Sep 30, 2029 | tighter | 0.16 mg/L (3 values, 1 below detection) | 0.034× |
| Nitrogen, ammonia total [as N], monthly average outfall 02A | 2 mg/L | Sep 30, 2029 | tighter | 0.16 mg/L (3 values, 2 below detection) | — |
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/LA0068101 · MCP: https://passage-data.com/mcp