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Optical Instruments And Lenses, New Iberia, Louisiana. NPDES permit LA0098949, in force until Aug 31, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | instantaneous maximum | report only (deg F) | all year | 005 |
| pH | instantaneous minimum | report only (SU) | all year | 005 |
| pH | instantaneous maximum | report only (SU) | all year | 005 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 005 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 005 |
| Sulfide, total [as S] | monthly average | report only (mg/L) | all year | 005 |
| Sulfide, total [as S] | daily maximum | report only (mg/L) | all year | 005 |
| Sulfide, total [as S] | daily maximum | ≤ .86 lb/d | all year | 005 |
| Zinc, total [as Zn] | monthly average | report only (mg/L) | all year | 005 |
| Zinc, total [as Zn] | monthly average | report only (mg/L) | all year | 005 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 005 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 005 |
| Zinc, total [as Zn] | daily maximum | ≤ 3 lb/d | all year | 005 |
| Zinc, total [as Zn] | daily maximum | ≤ 3 lb/d | all year | 005 |
| Selenium, total [as Se] | monthly average | report only (mg/L) | all year | 005 |
| Selenium, total [as Se] | monthly average | report only (mg/L) | all year | 005 |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year | 005 |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year | 005 |
| Selenium, total [as Se] | daily maximum | ≤ 3 lb/d | all year | 005 |
| Selenium, total [as Se] | daily maximum | ≤ 3 lb/d | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| pH range excursions, > 60 minutes | monthly total | ≤ 0 occur/mo | all year | 005 |
| pH range excursions, monthly total accum | monthly total | ≤ 446 min | all year | 005 |
| LF Pass/Fail Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopis bahia) | 48-hour minimum | report only (pass=0;fail=1) | all year | 005 |
| LF Pass/Fail Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopis bahia) | monthly average minimum | report only (pass=0;fail=1) | all year | 005 |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Menidia beryllina | 48-hour minimum | report only (pass=0;fail=1) | all year | 005 |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Menidia beryllina | monthly average minimum | report only (pass=0;fail=1) | all year | 005 |
| NOAEC Lethal Static Renewal 48HR Acute Americamysis bahia (formerly Mysidopsis bahia) | 48-hour minimum | report only (%) | all year | 005 |
| NOAEC Lethal Static Renewal 48HR Acute Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | all year | 005 |
| NOAEC Lethal Static Renewal 48HR Acute Menidia beryllina | 48-hour minimum | report only (%) | all year | 005 |
| NOAEC Lethal Static Renewal 48HR Acute Menidia beryllina | monthly average minimum | report only (%) | all year | 005 |
| Coef Of Var Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | maximum | report only (%) | all year | 005 |
| Coef Of Var Static Renewal 48Hr Acute Menidia beryllina | maximum | report only (%) | all year | 005 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | all year | 205 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L | all year | 205 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 205 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 205 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year | 205 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 205 |
| Enterococci | monthly geometric mean | ≤ 35 #/100mL | all year | 205 |
| Enterococci | daily maximum | ≤ 130 #/100mL | all year | 205 |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year | 205 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year | 205 |
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/LA0098949 · MCP: https://passage-data.com/mcp