GULF COPPER LLC

NPDES permit TX0005754 · Minor NON-POTW · effective, expires 2031-04-27 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

9values over a limit
0required values missing, on 0 form(s)
2of 44 forms filed late

Last period with anything received: 2026-07-31. Most often over: Coliform, fecal general (7), Solids, total suspended (2).

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (50)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO MIN >= 2 mg/L all year
001BOD, 5-day, 20 deg. CDAILY AV <= 20 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
001BOD, 5-day, 20 deg. CDAILY AV <= 2.7 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 7.5 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY AV <= 20 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Solids, total suspendedDAILY AV <= 2.7 lb/d all year
001Solids, total suspendedDAILY MX <= 7.5 lb/d all year
001Flow, in conduit or thru treatment plantDAILY AV <= .016 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX <= .02 MGD all year
001Chlorine, total residualMO MIN >= 1 mg/L all year
001Chlorine, total residualMO MAX <= 4 mg/L all year
001Coliform, fecal generalDAILY AV <= 14 CFU/100mL all year
001Coliform, fecal generalDAILY MX <= 28 CFU/100mL all year
004pHMINIMUM >= 6 SU all year
004pHMAXIMUM <= 9 SU all year
004Solids, total suspendedDAILY AV report only all year
004Solids, total suspendedDAILY MX report only all year
004Solids, total suspendedDAILY AV report only all year
004Solids, total suspendedDAILY MX report only all year
004Solids, total suspendedDAILY AV <= 50 mg/L all year
004Solids, total suspendedDAILY MX <= 100 mg/L all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Cyanide, free [as free]DAILY AV report only all year
004Cyanide, free [as free]DAILY MX report only all year
004Copper, total [as Cu]DAILY MX report only all year
004Zinc, total [as Zn]DAILY MX report only all year
004Flow, in conduit or thru treatment plantDAILY AV report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
005pHMINIMUM >= 6 SU all year
005pHMAXIMUM <= 9 SU all year
005Solids, total suspendedDAILY AV report only all year
005Solids, total suspendedDAILY MX report only all year
005Solids, total suspendedDAILY AV report only all year
005Solids, total suspendedDAILY MX report only all year
005Solids, total suspendedDAILY AV <= 50 mg/L all year
005Solids, total suspendedDAILY MX <= 100 mg/L all year
005Oil & GreaseDAILY MX <= 15 mg/L all year
005Copper, total [as Cu]DAILY MX report only all year
005Flow, in conduit or thru treatment plantDAILY AV report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
006pHMINIMUM >= 6 SU all year
006pHMAXIMUM <= 9 SU all year
006Solids, total suspendedDAILY MX <= 100 mg/L all year
006Oil & GreaseDAILY MX <= 15 mg/L all year
006Flow, in conduit or thru treatment plantDAILY AV report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only 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