FLINT HILLS RESOURCES CORPUS CHRISTI LLC

NPDES permit TX0006289 · Major NON-POTW · administratively continued, expires 2025-02-28 · 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.

This permit expired on 2025-02-28 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

5values over a limit
1required values missing, on 1 form(s)
1of 93 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, total suspended (4), Oxygen demand, chem. [high level] [COD] (1).

Reporting

Reports are due about 21 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (192)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX <= 115 deg F all year
001BOD, 5-day, 20 deg. CDAILY AV <= 25 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CDAILY AV <= 675 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 1622 lb/d all year
001Oxygen demand, chem. [high level] [COD]DAILY AV report only all year
001Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
001Oxygen demand, chem. [high level] [COD]DAILY AV <= 7623 lb/d all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 14736 lb/d all year
001pHMINIMUM >= 5 SU all year
001pHMAXIMUM <= 11 SU all year
001Solids, total suspendedDAILY AV report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY AV <= 1032 lb/d all year
001Solids, total suspendedDAILY MX <= 1630 lb/d all year
001Oil & GreaseDAILY AV report only all year
001Oil & GreaseDAILY MX report only all year
001Oil & GreaseDAILY AV <= 400 lb/d all year
001Oil & GreaseDAILY MX <= 600 lb/d all year
001Nitrogen, ammonia total [as N]DAILY AV <= 9 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY AV <= 243 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 405 lb/d all year
001Sulfide, total [as S]DAILY AV <= 6.4 lb/d all year
001Sulfide, total [as S]DAILY MX <= 14.2 lb/d all year
001Fluoride, total [as F]DAILY AV report only all year
001Fluoride, total [as F]DAILY MX report only all year
001Chromium, hexavalent [as Cr]DAILY AV <= 6.03 lb/d all year
001Chromium, hexavalent [as Cr]DAILY MX <= 12.3 lb/d all year
001Chromium, total [as Cr]DAILY AV <= 12.5 lb/d all year
001Chromium, total [as Cr]DAILY MX <= 35.4 lb/d all year
001Flow, in conduit or thru treatment plantDAILY AV <= 6.9 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX <= 8.3 MGD all year
001Phenolic compounds, totalDAILY AV <= 8.3 lb/d all year
001Phenolic compounds, totalDAILY MX <= 17.2 lb/d all year
001pH range excursions, > 60 minutesMO TOTAL <= 0 occur/mo all year
001pH range excursions, monthly total accumMO TOTAL <= 446 min all year
004Oxygen demand, chem. [high level] [COD]DAILY MX <= 150 mg/L all year
004pHMINIMUM >= 6 SU all year
004pHMAXIMUM <= 9 SU all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Copper, total [as Cu]DAILY MX <= .0152 mg/L 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
005Oxygen demand, chem. [high level] [COD]DAILY MX <= 200 mg/L all year
005pHMINIMUM >= 6 SU all year
005pHMAXIMUM <= 9 SU all year
005Oil & GreaseDAILY MX <= 15 mg/L 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
008Oxygen demand, chem. [high level] [COD]DAILY MX <= 200 mg/L all year
008pHMINIMUM >= 6 SU all year
008pHMAXIMUM <= 9 SU all year
008Oil & GreaseDAILY MX <= 15 mg/L all year
008Flow, in conduit or thru treatment plantDAILY AV report only all year
008Flow, in conduit or thru treatment plantDAILY MX report only all year
011Oxygen demand, chem. [high level] [COD]DAILY MX <= 200 mg/L all year
011pHMINIMUM >= 6 SU all year
011pHMAXIMUM <= 9 SU all year
011Oil & GreaseDAILY MX <= 15 mg/L all year
011Flow, in conduit or thru treatment plantDAILY AV report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
012Temperature, water deg. fahrenheitDAILY MX <= 115 deg F all year
012Oxygen, dissolved [DO]MO MIN >= 4 mg/L all year
012BOD, 5-day, 20 deg. CDAILY AV <= 25 mg/L all year
012BOD, 5-day, 20 deg. CDAILY MX report only all year
012BOD, 5-day, 20 deg. CDAILY AV <= 675 lb/d all year
012BOD, 5-day, 20 deg. CDAILY MX <= 1622 lb/d all year
012Oxygen demand, chem. [high level] [COD]DAILY AV report only all year
012Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
012Oxygen demand, chem. [high level] [COD]DAILY AV <= 7623 lb/d all year
012Oxygen demand, chem. [high level] [COD]DAILY MX <= 14736 lb/d all year
012pHMINIMUM >= 5 SU all year
012pHMAXIMUM <= 11 SU all year
012Solids, total suspendedDAILY AV report only all year
012Solids, total suspendedDAILY MX report only all year
012Solids, total suspendedDAILY AV <= 1032 lb/d all year
012Solids, total suspendedDAILY MX <= 1630 lb/d all year
012Oil & GreaseDAILY AV report only all year
012Oil & GreaseDAILY MX report only all year
012Oil & GreaseDAILY AV <= 400 lb/d all year
012Oil & GreaseDAILY MX <= 600 lb/d all year
012Nitrogen, ammonia total [as N]DAILY AV <= 9 mg/L all year
012Nitrogen, ammonia total [as N]DAILY MX report only all year
012Nitrogen, ammonia total [as N]DAILY AV <= 243 lb/d all year
012Nitrogen, ammonia total [as N]DAILY MX <= 405 lb/d all year
012Cyanide, free [amenable to chlorination]DAILY AV report only all year
012Cyanide, free [amenable to chlorination]DAILY MX report only all year
012Cyanide, free [amenable to chlorination]DAILY AV <= .151 lb/d all year
012Cyanide, free [amenable to chlorination]DAILY MX <= .351 lb/d all year
012Sulfide, total [as S]DAILY AV <= 6.4 lb/d all year
012Sulfide, total [as S]DAILY MX <= 14.2 lb/d all year
012Fluoride, total [as F]DAILY AV report only all year
012Fluoride, total [as F]DAILY MX report only all year
012Chromium, hexavalent [as Cr]DAILY AV <= .661 lb/d all year
012Chromium, hexavalent [as Cr]DAILY MX <= 1.4 lb/d all year
012Chromium, total [as Cr]DAILY AV <= 12.5 lb/d all year
012Chromium, total [as Cr]DAILY MX <= 35.4 lb/d all year
012Copper, total [as Cu]DAILY AV report only all year
012Copper, total [as Cu]DAILY MX report only all year
012Copper, total [as Cu]DAILY AV <= .254 lb/d all year
012Copper, total [as Cu]DAILY MX <= .357 lb/d all year
012Flow, in conduit or thru treatment plantDAILY AV <= 6.9 MGD all year
012Flow, in conduit or thru treatment plantDAILY MX <= 8.3 MGD all year
012Phenolic compounds, totalDAILY AV <= 8.3 lb/d all year
012Phenolic compounds, totalDAILY MX <= 17.2 lb/d all year
012pH range excursions, > 60 minutesMO TOTAL <= 0 occur/mo all year
012pH range excursions, monthly total accumMO TOTAL <= 446 min all year
SUMBOD, 5-day, 20 deg. CDAILY AV <= 675 lb/d all year
SUMBOD, 5-day, 20 deg. CDAILY MX <= 1622 lb/d all year
SUMOxygen demand, chem. [high level] [COD]DAILY AV <= 7623 lb/d all year
SUMOxygen demand, chem. [high level] [COD]DAILY MX <= 14736 lb/d all year
SUMSolids, total suspendedDAILY AV <= 1032 lb/d all year
SUMSolids, total suspendedDAILY MX <= 1630 lb/d all year
SUMOil & GreaseDAILY AV <= 400 lb/d all year
SUMOil & GreaseDAILY MX <= 600 lb/d all year
SUMNitrogen, ammonia total [as N]DAILY AV <= 243 lb/d all year
SUMNitrogen, ammonia total [as N]DAILY MX <= 405 lb/d all year
SUMFlow, in conduit or thru treatment plantDAILY AV <= 6.9 MGD all year
SUMFlow, in conduit or thru treatment plantDAILY MX <= 8.3 MGD all year
TX1Whole effluent toxicity7 DA MIN >= 8 % all year
TX1Whole effluent toxicityMO AV MN >= 8 % all year
TX1Whole effluent toxicity7 DA MIN >= 8 % all year
TX1Whole effluent toxicityMO AV MN >= 8 % all year
TX1Whole effluent toxicity - retest #17 DA MIN report only all year
TX1Whole effluent toxicity - retest #1MO AV MN report only all year
TX1Whole effluent toxicity - retest #27 DA MIN report only all year
TX1Whole effluent toxicity - retest #2MO AV MN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX1Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX1LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX1LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX12Whole effluent toxicity7 DA MIN >= 83 % all year
TX12Whole effluent toxicityMO AV MN >= 83 % all year
TX12Whole effluent toxicity7 DA MIN >= 83 % all year
TX12Whole effluent toxicityMO AV MN >= 83 % all year
TX12Whole effluent toxicity - retest #17 DA MIN report only all year
TX12Whole effluent toxicity - retest #1MO AV MN report only all year
TX12Whole effluent toxicity - retest #27 DA MIN report only all year
TX12Whole effluent toxicity - retest #2MO AV MN report only all year
TX12Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX12Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX12Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX12Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX12NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX12NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX12NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX12NOEC Lethal Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX12NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX12NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX12NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX12NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX12Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX12Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX12Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX12Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX12LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX12LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX12LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX12LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TX12LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX12LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX12LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia7 DA MIN report only all year
TX12LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidiaMO AV MN report only all year
TXAWhole effluent toxicity - retest #1SINGSAMP report only all year
TXAWhole effluent toxicity - retest #2SINGSAMP report only all year
TXALC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)SINGSAMP report only all year
TXALC50 Pass/Fail Static 24Hr Acute Menidia menidiaSINGSAMP report only all year
TXLWhole effluent toxicity - retest #1SINGSAMP report only all year
TXLWhole effluent toxicity - retest #2SINGSAMP report only all year
TXLLC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)SINGSAMP report only all year
TXLLC50 Pass/Fail Static 24Hr Acute Menidia menidiaSINGSAMP 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