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Industrial Inorganic Chemicals, major discharger, Point Comfort, Texas. NPDES permit TX0004715, in force until Jan 13, 2027. Last 12 months: over a limit 2 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit |
|---|---|---|---|---|
| May 2026 | 005 | pH range excursions, > 60 minutes, monthly total | 2 occur/mo | ≤ 0 occur/mo |
| June 2026 | 001 | pH, maximum | 14 SU | ≤ 11 SU |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | minimum | ≥ 5 SU | all year | 001 |
| pH | maximum | ≤ 11 SU | all year | 001 |
| Flow, in conduit or thru treatment plant | daily average | ≤ 62 MGD | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 72 MGD | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (Mgal/yr) | all year | 001 |
| Mercury, total [as Hg] | daily maximum | ≤ .004 mg/L | all year | 001 |
| Mercury, total [as Hg] | daily average | ≤ .16 lb/d | all year | 001 |
| Mercury, total [as Hg] | daily maximum | ≤ .32 lb/d | all year | 001 |
| Mercury, total [as Hg] | daily maximum | report only (lb/mo) | all year | 001 |
| Mercury, total [as Hg] | daily maximum | ≤ 21 lb/yr | 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 |
| pH | minimum | ≥ 5 SU | all year | 003 |
| pH | maximum | ≤ 11 SU | all year | 003 |
| Oil & Grease | daily average | report only (mg/L) | all year | 003 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 003 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 55 mg/L | all year | 003 |
| Zinc, total [as Zn] | daily average | ≤ .25 mg/L | all year | 003 |
| Zinc, total [as Zn] | daily maximum | ≤ .53 mg/L | all year | 003 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Mercury, total [as Hg] | daily average | report only (mg/L) | all year | 003 |
| Mercury, total [as Hg] | daily maximum | ≤ .01 mg/L | all year | 003 |
| Mercury, total [as Hg] | daily maximum | report only (lb/mo) | all year | 003 |
| pH range excursions, > 60 minutes | monthly total | ≤ 0 occur/mo | all year | 003 |
| pH range excursions, monthly total accum | monthly total | ≤ 446 min | all year | 003 |
| pH | minimum | ≥ 5 SU | all year | 005 |
| pH | maximum | ≤ 11 SU | all year | 005 |
| Solids, total suspended | daily average | report only (mg/L) | all year | 005 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 005 |
| Carbon, tot organic [TOC] | daily average | report only (mg/L) | all year | 005 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 005 |
| Fluoride, total [as F] | daily average | report only (mg/L) | all year | 005 |
| Fluoride, total [as F] | daily maximum | ≤ 75 mg/L | all year | 005 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Mercury, total [as Hg] | daily average | report only (mg/L) | all year | 005 |
| Mercury, total [as Hg] | daily maximum | ≤ .01 mg/L | all year | 005 |
| Mercury, total [as Hg] | daily maximum | report only (lb/mo) | 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 |
| Oxygen demand, chem. [high level] [COD] | daily average | report only (mg/L) | all year | 006 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 200 mg/L | all year | 006 |
| pH | minimum | ≥ 5 SU | all year | 006 |
| pH | maximum | ≤ 11 SU | all year | 006 |
| Solids, total suspended | daily average | report only (mg/L) | all year | 006 |
| Solids, total suspended | daily maximum | ≤ 90 mg/L | all year | 006 |
| Oil & Grease | daily average | report only (mg/L) | all year | 006 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 006 |
| Fluoride, total [as F] | daily average | ≤ 18 mg/L | all year | 006 |
| Fluoride, total [as F] | daily maximum | ≤ 20 mg/L | all year | 006 |
| Copper, total [as Cu] | daily average | report only (mg/L) | all year | 006 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Inorganic suspended solids | daily average | report only (mg/L) | all year | 006 |
| Inorganic suspended solids | daily maximum | ≤ 50 mg/L | all year | 006 |
| Mercury, total [as Hg] | daily average | report only (mg/L) | all year | 006 |
| Mercury, total [as Hg] | daily maximum | ≤ .005 mg/L | all year | 006 |
| Mercury, total [as Hg] | daily maximum | report only (lb/mo) | all year | 006 |
| pH range excursions, > 60 minutes | monthly total | ≤ 0 occur/mo | all year | 006 |
| pH range excursions, monthly total accum | monthly total | ≤ 446 min | all year | 006 |
| pH | minimum | ≥ 5 SU | all year | 007 |
| pH | maximum | ≤ 11 SU | all year | 007 |
| Solids, total suspended | daily average | report only (mg/L) | all year | 007 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 007 |
| Carbon, tot organic [TOC] | daily average | report only (mg/L) | all year | 007 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 007 |
| Fluoride, total [as F] | daily average | report only (mg/L) | all year | 007 |
| Fluoride, total [as F] | daily maximum | ≤ 75 mg/L | all year | 007 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Mercury, total [as Hg] | daily average | report only (mg/L) | all year | 007 |
| Mercury, total [as Hg] | daily maximum | ≤ .01 mg/L | all year | 007 |
| Mercury, total [as Hg] | daily maximum | report only (lb/mo) | all year | 007 |
| pH range excursions, > 60 minutes | monthly total | ≤ 0 occur/mo | all year | 007 |
| pH range excursions, monthly total accum | monthly total | ≤ 446 min | all year | 007 |
| pH | minimum | ≥ 6 SU | all year | 008 |
| pH | maximum | ≤ 9 SU | all year | 008 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 008 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 75 mg/L | all year | 008 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
| Mercury, total [as Hg] | daily maximum | ≤ .01 mg/L | all year | 008 |
| Mercury, total [as Hg] | daily maximum | report only (lb/mo) | all year | 008 |
| pH | minimum | ≥ 6 SU | all year | 009 |
| pH | maximum | ≤ 9 SU | all year | 009 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 009 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 75 mg/L | all year | 009 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 009 |
| Mercury, total [as Hg] | daily maximum | ≤ .01 mg/L | all year | 009 |
| Mercury, total [as Hg] | daily maximum | report only (lb/mo) | all year | 009 |
| pH | minimum | ≥ 6 SU | all year | 010 |
| pH | maximum | ≤ 9 SU | all year | 010 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 010 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 75 mg/L | all year | 010 |
| Cyanide, free [as free] | daily maximum | report only (mg/L) | all year | 010 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 010 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 010 |
| Mercury, total [as Hg] | daily maximum | ≤ .01 mg/L | all year | 010 |
| Mercury, total [as Hg] | daily maximum | report only (lb/mo) | all year | 010 |
| pH | minimum | ≥ 6 SU | all year | 011 |
| pH | maximum | ≤ 9 SU | all year | 011 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 011 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 75 mg/L | all year | 011 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 011 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 011 |
| Mercury, total [as Hg] | daily maximum | ≤ .01 mg/L | all year | 011 |
| Mercury, total [as Hg] | daily maximum | report only (lb/mo) | all year | 011 |
| pH | minimum | ≥ 6 SU | all year | 012 |
| pH | maximum | ≤ 9 SU | all year | 012 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 012 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 75 mg/L | all year | 012 |
| Cyanide, free [as free] | daily maximum | report only (mg/L) | all year | 012 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 012 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 012 |
| Mercury, total [as Hg] | daily maximum | ≤ .01 mg/L | all year | 012 |
| Mercury, total [as Hg] | daily maximum | report only (lb/mo) | all year | 012 |
| pH | minimum | ≥ 6 SU | all year | 013 |
| pH | maximum | ≤ 9 SU | all year | 013 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 013 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 75 mg/L | all year | 013 |
| Cyanide, free [as free] | daily maximum | report only (mg/L) | all year | 013 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 013 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 013 |
| Mercury, total [as Hg] | daily maximum | ≤ .01 mg/L | all year | 013 |
| Mercury, total [as Hg] | daily maximum | report only (lb/mo) | all year | 013 |
| pH | minimum | ≥ 6 SU | all year | 014 |
| pH | maximum | ≤ 9 SU | all year | 014 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 014 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 75 mg/L | all year | 014 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 014 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 014 |
| Mercury, total [as Hg] | daily maximum | ≤ .01 mg/L | all year | 014 |
| Mercury, total [as Hg] | daily maximum | report only (lb/mo) | all year | 014 |
| pH | minimum | ≥ 6 SU | all year | 015 |
| pH | maximum | ≤ 9 SU | all year | 015 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 015 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 75 mg/L | all year | 015 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 015 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 015 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 015 |
| Mercury, total [as Hg] | daily maximum | ≤ .01 mg/L | all year | 015 |
| Mercury, total [as Hg] | daily maximum | report only (lb/mo) | all year | 015 |
| Solids, total suspended | daily average | ≤ 2046 lb/d | all year | 101 |
| Solids, total suspended | daily maximum | ≤ 4211 lb/d | all year | 101 |
| Carbon, tot organic [TOC] | daily average | ≤ 55 mg/L | all year | 101 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 75 mg/L | all year | 101 |
| Fluoride, total [as F] | daily average | ≤ 765 lb/d | all year | 101 |
| Fluoride, total [as F] | daily maximum | ≤ 1608 lb/d | all year | 101 |
| Arsenic, total [as As] | daily average | ≤ .1 mg/L | all year | 101 |
| Arsenic, total [as As] | daily maximum | ≤ .3 mg/L | all year | 101 |
| Chromium, total [as Cr] | daily average | ≤ 2.45 lb/d | all year | 101 |
| Chromium, total [as Cr] | daily maximum | ≤ 8.24 lb/d | all year | 101 |
| Nickel, total [as Ni] | daily average | ≤ 2.89 lb/d | all year | 101 |
| Nickel, total [as Ni] | daily maximum | ≤ 9.57 lb/d | all year | 101 |
| Zinc, total [as Zn] | daily average | ≤ 7.42 lb/d | all year | 101 |
| Zinc, total [as Zn] | daily maximum | ≤ 23.7 lb/d | all year | 101 |
| Selenium, total [as Se] | daily average | ≤ .1 mg/L | all year | 101 |
| Selenium, total [as Se] | daily maximum | ≤ .3 mg/L | all year | 101 |
| Flow, in conduit or thru treatment plant | daily average | ≤ 4.32 MGD | all year | 101 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 6.48 MGD | all year | 101 |
| Mercury, total [as Hg] | daily average | report only (mg/L) | all year | 101 |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | all year | 101 |
| Temperature, water deg. fahrenheit | daily average | ≤ 117 deg F | all year | 201 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 122 deg F | all year | 201 |
| Alkalinity, carbonate [as CaCO3] | daily average | ≤ 25 mg/L | all year | 201 |
| Alkalinity, carbonate [as CaCO3] | daily maximum | ≤ 50 mg/L | all year | 201 |
| Solids, total suspended | daily average | report only (mg/L) | all year | 201 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 201 |
| Flow, in conduit or thru treatment plant | daily average | ≤ 26 MGD | all year | 201 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 29 MGD | all year | 201 |
| Mercury, total [as Hg] | daily average | report only (mg/L) | all year | 201 |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | all year | 201 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 301 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 301 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 301 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 301 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 301 |
| Percent Overflow Wastewater Discharged | daily maximum | report only (%) | all year | 301 |
| Mercury, total [as Hg] | daily average | report only (mg/L) | all year | 301 |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | all year | 301 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 65 mg/L | all year | 401 |
| Solids, total suspended | daily maximum | ≤ 65 mg/L | all year | 401 |
| Flow, in conduit or thru treatment plant | daily average | report only (Mgal/hr) | all year | 401 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (Mgal/hr) | all year | 401 |
| Enterococci | daily average | ≤ 14 CFU/100mL | all year | 401 |
| Enterococci | daily maximum | ≤ 43 CFU/100mL | all year | 401 |
| Whole effluent toxicity - retest #1 | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Whole effluent toxicity - retest #1 | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| Whole effluent toxicity - retest #2 | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Whole effluent toxicity - retest #2 | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | monthly average minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 7-day minimum | report only (%) | all year | TX1 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | monthly average minimum | report only (%) | all year | TX1 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 7-day minimum | report only (pass=0;fail=1) | all year | TX1 |
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | monthly average minimum | report only (pass=0;fail=1) | all year | TX1 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 7-day minimum | report only (%) | all year | TX1 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | monthly average minimum | report only (%) | all year | TX1 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia | 7-day minimum | report only (%) | all year | TX1 |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia | monthly average minimum | report only (%) | all year | TX1 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 7-day minimum | report only (%) | all year | TX1 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | monthly average minimum | report only (%) | all year | TX1 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia | 7-day minimum | report only (%) | all year | TX1 |
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia | monthly average minimum | report only (%) | all year | TX1 |
| Whole effluent toxicity - retest #1 | single sample | report only (pass=0;fail=1) | all year | TXA |
| Whole effluent toxicity - retest #2 | single sample | report only (pass=0;fail=1) | all year | TXA |
| LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | single sample | report only (pass=0;fail=1) | all year | TXA |
| LC50 Pass/Fail Static 24Hr Acute Menidia menidia | single sample | report only (pass=0;fail=1) | all year | TXA |
Cited limits by parameter: Texas's rules and the federal ones.
Same industry: the 165 Chemicals and Allied Products permits in Texas.
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