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Industrial Inorganic Chemicals, major discharger, Gramercy, Louisiana. NPDES permit LA0079961 expired Oct 31, 2020; its limits still apply. Last 12 months: over a limit 29 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| October 2025 | 001 | pH range excursions, monthly total accum, monthly total | 9437 min | ≤ 446 min | 2016% |
| October 2025 | 501 | Coliform, fecal general, monthly average | 280 #/100mL | ≤ 200 #/100mL | 40% |
| October 2025 | 501 | Coliform, fecal general, weekly average | 800 #/100mL | ≤ 400 #/100mL | 100% |
| November 2025 | 001 | pH range excursions, monthly total accum, monthly total | 4980 min | ≤ 446 min | 1017% |
| December 2025 | 001 | Whole Effluent Toxicity [WET] - D. pulex, 48-hour minimum | .87 % | ≥ 1.5 % | 42% |
| December 2025 | 001 | Whole Effluent Toxicity [WET] - D. pulex, monthly average minimum | .87 % | ≥ 1.5 % | 42% |
| December 2025 | 001 | pH range excursions, monthly total accum, monthly total | 10462 min | ≤ 446 min | 2246% |
| December 2025 | 003 | pH, instantaneous maximum | 9.19 SU | ≤ 9 SU | — |
| January 2026 | 001 | pH range excursions, monthly total accum, monthly total | 5738 min | ≤ 446 min | 1187% |
| January 2026 | 501 | Coliform, fecal general, monthly average | 381 #/100mL | ≤ 200 #/100mL | 91% |
| January 2026 | 501 | Coliform, fecal general, weekly average | 520 #/100mL | ≤ 400 #/100mL | 30% |
| February 2026 | 001 | pH range excursions, monthly total accum, monthly total | 5566 min | ≤ 446 min | 1148% |
| February 2026 | 004 | pH, instantaneous maximum | 9.4 SU | ≤ 9 SU | — |
| March 2026 | 001 | pH range excursions, monthly total accum, monthly total | 5329 min | ≤ 446 min | 1095% |
| March 2026 | 003 | pH, instantaneous maximum | 10.3 SU | ≤ 9 SU | — |
| April 2026 | 001 | pH range excursions, monthly total accum, monthly total | 4286 min | ≤ 446 min | 861% |
| April 2026 | 004 | pH, instantaneous maximum | 9.16 SU | ≤ 9 SU | — |
| May 2026 | 001 | pH range excursions, monthly total accum, monthly total | 5615 min | ≤ 446 min | 1159% |
| June 2026 | 001 | Whole Effluent Toxicity [WET] - D. pulex, 48-hour minimum | .65 % | ≥ 1.5 % | 57% |
| June 2026 | 001 | Whole Effluent Toxicity [WET] - D. pulex, monthly average minimum | .65 % | ≥ 1.5 % | 57% |
| June 2026 | 001 | pH range excursions, monthly total accum, monthly total | 8485 min | ≤ 446 min | 1802% |
| June 2026 | 003 | pH, instantaneous maximum | 9.6 SU | ≤ 9 SU | — |
| June 2026 | 004 | pH, instantaneous maximum | 11.6 SU | ≤ 9 SU | — |
| July 2026 | 001 | pH range excursions, monthly total accum, monthly total | 4134 min | ≤ 446 min | 827% |
| July 2026 | 004 | pH, instantaneous maximum | 11.3 SU | ≤ 9 SU | — |
| August 2026 | 001 | pH range excursions, monthly total accum, monthly total | 2306 min | ≤ 446 min | 417% |
| August 2026 | 004 | pH, instantaneous maximum | 10.6 SU | ≤ 9 SU | — |
| September 2026 | 001 | pH range excursions, monthly total accum, monthly total | 5379 min | ≤ 446 min | 1106% |
| September 2026 | 004 | pH, instantaneous maximum | 10.14 SU | ≤ 9 SU | — |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | report only (SU) | all year | 001 |
| pH | maximum | report only (SU) | 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 |
| Whole Effluent Toxicity [WET] - D. pulex | 48-hour minimum | ≥ 1.7 % | all year | 001 |
| Whole Effluent Toxicity [WET] - D. pulex | monthly average minimum | ≥ 1.5 % | all year | 001 |
| Whole Effluent Toxicity [WET] - D. pulex | monthly average minimum | ≥ 1.7 % | all year | 001 |
| Whole Effluent Toxicity [WET] - D. pulex | 48-hour minimum | ≥ 1.5 % | all year | 001 |
| Whole Effluent Toxicity [WET] - P. promelas | 48-hour minimum | ≥ 1.7 % | all year | 001 |
| Whole Effluent Toxicity [WET] - P. promelas | monthly average minimum | ≥ 1.5 % | all year | 001 |
| Whole Effluent Toxicity [WET] - P. promelas | monthly average minimum | ≥ 1.7 % | all year | 001 |
| Whole Effluent Toxicity [WET] - P. promelas | 48-hour minimum | ≥ 1.5 % | all year | 001 |
| pH range excursions, > 60 minutes | monthly total | ≤ 0 occur/mo | all year | 001 |
| pH range excursions, monthly total accum | monthly total | ≤ 446 min | all year | 001 |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 48-hour minimum | report only (pass=0;fail=1) | all year | 001 |
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | monthly average minimum | report only (pass=0;fail=1) | all year | 001 |
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 48-hour minimum | report only (pass=0;fail=1) | all year | 001 |
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | monthly average minimum | report only (%) | all year | 001 |
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 48-hour minimum | report only (%) | all year | 001 |
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | monthly average minimum | report only (%) | all year | 001 |
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 48-hour minimum | report only (%) | all year | 001 |
| Coef Of Var Static Renewal 48Hr Acute D. pulex | maximum | report only (%) | all year | 001 |
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | maximum | report only (%) | all year | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | 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 | daily maximum | ≤ .2 mg/L | all year | 002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 003 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 003 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 003 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 003 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | 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 |
| 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 | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | 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 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | 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 |
| 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 |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | all year | 004 |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | all year | 004 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 005 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 005 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 005 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 005 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | 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 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | 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 |
| Chlorine, total residual | monthly average | report only (mg/L) | all year | 005 |
| Chlorine, total residual | daily maximum | report only (mg/L) | all year | 005 |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | all year | 005 |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | all year | 005 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 006 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 006 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 006 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 006 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 006 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 006 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 006 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 006 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | all year | 006 |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | all year | 006 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 007 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 007 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 007 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 007 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 007 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 007 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 007 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 50 mg/L | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 301 |
| Flow | monthly average | report only (MGD) | all year | 301 |
| Flow, process wastewater | monthly average | ≤ 2.97 MGD | all year | 301 |
| Precipitation, monthly accumulation | monthly average | report only (MGD) | all year | 301 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 501 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | 501 |
| Solids, total suspended | monthly average | ≤ 90 mg/L | all year | 501 |
| Solids, total suspended | daily maximum | ≤ 135 mg/L | all year | 501 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 501 |
| Flow, in conduit or thru treatment plant | weekly average | report only (MGD) | all year | 501 |
| Coliform, fecal general | monthly average | ≤ 200 #/100mL | all year | 501 |
| Coliform, fecal general | weekly average | ≤ 400 #/100mL | all year | 501 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 601 |
| Precipitation, monthly accumulation | monthly average | report only (MGD) | all year | 601 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 602 |
| Precipitation, monthly accumulation | monthly average | report only (MGD) | all year | 602 |
Cited limits by parameter: Louisiana's rules and the federal ones.
Same industry: the 130 Chemicals and Allied Products permits in Louisiana.
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