NPDES permit TX0064912 · Minor NON-POTW · administratively continued, expires 2025-02-11 · EPA's file as of 2026-09-19
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This permit expired on 2025-02-11 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-07-31. Most often over: Enterococci (2).
Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Oxygen demand, chem. [high level] [COD] | DAILY AV | <= 688 lb/d | all year |
| 001 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 1454 lb/d | all year |
| 001 | pH | MINIMUM | >= 5 SU | all year |
| 001 | pH | MAXIMUM | <= 11 SU | all year |
| 001 | Solids, total suspended | DAILY AV | <= 266 lb/d | all year |
| 001 | Solids, total suspended | DAILY MX | <= 532 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY AV | <= 13 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 19 lb/d | all year |
| 001 | Cyanide, total [as CN] | DAILY AV | <= 8.39 lb/d | all year |
| 001 | Cyanide, total [as CN] | DAILY MX | <= 29.91 lb/d | all year |
| 001 | Methyl cellosolve | DAILY AV | <= 36.25 lb/d | all year |
| 001 | Methyl cellosolve | DAILY MX | <= 89.29 lb/d | all year |
| 001 | o-Dichlorobenzene | DAILY AV | <= .05 lb/d | all year |
| 001 | o-Dichlorobenzene | DAILY MX | <= .13 lb/d | all year |
| 001 | 1,2-Dichloroethane | DAILY AV | <= .09 lb/d | all year |
| 001 | 1,2-Dichloroethane | DAILY MX | <= .36 lb/d | all year |
| 001 | Chloroform | DAILY AV | <= .01 lb/d | all year |
| 001 | Chloroform | DAILY MX | <= .02 lb/d | all year |
| 001 | Toluene | DAILY AV | <= .02 lb/d | all year |
| 001 | Toluene | DAILY MX | <= .05 lb/d | all year |
| 001 | Benzene | DAILY AV | <= .02 lb/d | all year |
| 001 | Benzene | DAILY MX | <= .05 lb/d | all year |
| 001 | Chlorobenzene | DAILY AV | <= .05 lb/d | all year |
| 001 | Chlorobenzene | DAILY MX | <= .13 lb/d | all year |
| 001 | Methylene chloride | DAILY AV | <= .27 lb/d | all year |
| 001 | Methylene chloride | DAILY MX | <= .8 lb/d | all year |
| 001 | Phenol | DAILY AV | <= .02 lb/d | all year |
| 001 | Phenol | DAILY MX | <= .05 lb/d | all year |
| 001 | Isopropyl acetate | DAILY AV | <= .45 lb/d | all year |
| 001 | Isopropyl acetate | DAILY MX | <= 1.16 lb/d | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY AV | <= .19 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | <= .39 MGD | all year |
| 001 | Methyl formate | DAILY AV | <= .45 lb/d | all year |
| 001 | Methyl formate | DAILY MX | <= 1.16 lb/d | all year |
| 001 | Isobutyraldehyde | DAILY AV | <= .45 lb/d | all year |
| 001 | Isobutyraldehyde | DAILY MX | <= 1.07 lb/d | all year |
| 001 | n-Amyl acetate | DAILY AV | <= .45 lb/d | all year |
| 001 | n-Amyl acetate | DAILY MX | <= 1.16 lb/d | all year |
| 001 | Amyl alcohol | DAILY AV | <= 3.66 lb/d | all year |
| 001 | Amyl alcohol | DAILY MX | <= 8.93 lb/d | all year |
| 001 | N-Hexane | DAILY AV | <= .02 lb/d | all year |
| 001 | N-Hexane | DAILY MX | <= .03 lb/d | all year |
| 001 | Acetonitrile | DAILY AV | <= 9.11 lb/d | all year |
| 001 | Acetonitrile | DAILY MX | <= 22.32 lb/d | all year |
| 001 | Ethanol | DAILY AV | <= 3.66 lb/d | all year |
| 001 | Ethanol | DAILY MX | <= 8.93 lb/d | all year |
| 001 | Isopropanol | DAILY AV | <= 1.42 lb/d | all year |
| 001 | Isopropanol | DAILY MX | <= 3.48 lb/d | all year |
| 001 | Diethylamine | DAILY AV | <= 91.08 lb/d | all year |
| 001 | Diethylamine | DAILY MX | <= 223.23 lb/d | all year |
| 001 | Dimethyl sulfoxide, total | DAILY AV | <= 33.48 lb/d | all year |
| 001 | Dimethyl sulfoxide, total | DAILY MX | <= 81.7 lb/d | all year |
| 001 | Triethylamine | DAILY AV | <= 91.07 lb/d | all year |
| 001 | Triethylamine | DAILY MX | <= 223.23 lb/d | all year |
| 001 | Isopropyl ether | DAILY AV | <= 2.32 lb/d | all year |
| 001 | Isopropyl ether | DAILY MX | <= 7.5 lb/d | all year |
| 001 | n-Butyl acetate | DAILY AV | <= .45 lb/d | all year |
| 001 | n-Butyl acetate | DAILY MX | <= 1.16 lb/d | all year |
| 001 | Methanol, total | DAILY AV | <= 3.66 lb/d | all year |
| 001 | Methanol, total | DAILY MX | <= 8.93 lb/d | all year |
| 001 | 4-Methyl-2-pentanone | DAILY AV | <= .18 lb/d | all year |
| 001 | 4-Methyl-2-pentanone | DAILY MX | <= .45 lb/d | all year |
| 001 | n-Heptane | DAILY AV | <= .02 lb/d | all year |
| 001 | n-Heptane | DAILY MX | <= .05 lb/d | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY AV | <= 191 lb/d | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 405 lb/d | all year |
| 001 | Xylene [mix of m+o+p] | DAILY AV | <= .01 lb/d | all year |
| 001 | Xylene [mix of m+o+p] | DAILY MX | <= .03 lb/d | all year |
| 001 | Acetone | DAILY AV | <= .18 lb/d | all year |
| 001 | Acetone | DAILY MX | <= .45 lb/d | all year |
| 001 | Ethyl acetate | DAILY AV | <= .45 lb/d | all year |
| 001 | Ethyl acetate | DAILY MX | <= 1.16 lb/d | all year |
| 001 | Tetrahydrofuran | DAILY AV | <= 2.32 lb/d | all year |
| 001 | Tetrahydrofuran | DAILY MX | <= 7.5 lb/d | all year |
| 001 | pH range excursions, > 60 minutes | MO TOTAL | <= 0 occur/mo | all year |
| 001 | pH range excursions, monthly total accum | MO TOTAL | <= 446 min | all year |
| 101 | BOD, 5-day, 20 deg. C | DAILY AV | report only | all year |
| 101 | BOD, 5-day, 20 deg. C | DAILY MX | <= 65 mg/L | all year |
| 101 | Solids, total suspended | DAILY AV | report only | all year |
| 101 | Solids, total suspended | DAILY MX | <= 65 mg/L | all year |
| 101 | Flow, in conduit or thru treatment plant | DAILY AV | report only | all year |
| 101 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 101 | Chlorine, total residual | MO MIN | >= 1 mg/L | all year |
| 101 | Chlorine, total residual | M6 | report only | all year |
| 101 | Enterococci | DAILY AV | <= 35 MPN/100mL | all year |
| 101 | Enterococci | DAILY MX | <= 130 MPN/100mL | all year |
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