PHILLIPS 66 BILLINGS REFINERY

NPDES permit MT0000256 · Major NON-POTW · administratively continued, expires 2021-07-31 · 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 2021-07-31 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

0values over a limit
0required values missing, on 0 form(s)
0of 83 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among MT permits in EPA's filings — check your permit).

Limits in force (326)

OutfallParameterStatisticLimitMonths
002Flow rate30DA AVG report only all year
002Flow rateDAILY MX report only all year
002BOD, 5-day, 20 deg. C30DA AVG report only all year
002BOD, 5-day, 20 deg. CDAILY MX report only all year
002BOD, 5-day, 20 deg. C30DA AVG report only all year
002BOD, 5-day, 20 deg. CDAILY MX report only all year
002Oxygen demand, chem. [high level] [COD]30DA AVG report only all year
002Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
002Oxygen demand, chem. [high level] [COD]30DA AVG report only all year
002Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
002pHINST MIN >= 6 SU all year
002pHINST MAX <= 9 SU all year
002Solids, total suspended30DA AVG report only all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total suspended30DA AVG report only all year
002Solids, total suspendedDAILY MX report only all year
002Nitrogen, total [as N]30DA AVG report only all year
002Nitrogen, total [as N]30DA AVG report only all year
002Nitrogen, ammonia total [as N]30DA AVG <= 2.3 mg/L all year
002Nitrogen, ammonia total [as N]DAILY MX <= 4.6 mg/L all year
002Nitrogen, ammonia total [as N]30DA AVG report only all year
002Nitrogen, ammonia total [as N]DAILY MX report only all year
002Nitrogen, Kjeldahl, total [as N]30DA AVG report only Jul, Aug, Sep
002Nitrite + Nitrate total [as N]30DA AVG report only Jul, Aug, Sep
002Phosphorus, total [as P]30DA AVG report only all year
002Phosphorus, total [as P]30DA AVG report only all year
002Sulfide, total [as S]30DA AVG report only all year
002Sulfide, total [as S]DAILY MX report only all year
002Sulfide, total [as S]VALUE report only all year
002Sulfide, dissolved, [as S]30DA AVG report only all year
002Sulfide, dissolved, [as S]DAILY MX report only all year
002Fluoride30DA AVG report only all year
002FluorideDAILY MX report only all year
002Arsenic, total recoverable30DA AVG report only all year
002Arsenic, total recoverableDAILY MX report only all year
002Selenium, total recoverable30DA AVG <= 5 ug/L all year
002Selenium, total recoverableDAILY MX <= 10 ug/L all year
002Chromium, hexavalent [as Cr]30DA AVG report only all year
002Chromium, hexavalent [as Cr]DAILY MX report only all year
002Chromium, hexavalent [as Cr]30DA AVG report only all year
002Chromium, hexavalent [as Cr]DAILY MX report only all year
002Aluminum, dissolved [as Al]30DA AVG report only all year
002Aluminum, dissolved [as Al]DAILY MX report only all year
002Lead, total recoverable30DA AVG report only all year
002Lead, total recoverableDAILY MX report only all year
002Chromium, total recoverable30DA AVG report only all year
002Chromium, total recoverableDAILY MX report only all year
002Chromium, total recoverable30DA AVG report only all year
002Chromium, total recoverableDAILY MX report only all year
002Copper, total recoverable30DA AVG report only all year
002Copper, total recoverableDAILY MX report only all year
002Oil and greaseMO AVG report only all year
002Oil and greaseDAILY MX <= 10 mg/L all year
002Oil and greaseDAILY MX report only all year
002Phenolics, total recoverable30DA AVG report only all year
002Phenolics, total recoverableDAILY MX report only all year
002Phenolics, total recoverable30DA AVG report only all year
002Phenolics, total recoverableDAILY MX report only all year
002Chlorine, total residual30DA AVG <= 100 ug/L all year
002Chlorine, total residualDAILY MX <= 100 ug/L all year
002Hydrogen sulfide30DA AVG report only all year
002Hydrogen sulfideDAILY MX report only all year
002Duration of dischargeVALUE report only all year
002Oil and grease visualINST MAX report only all year
003Flow rate30DA AVG report only all year
003Flow rateDAILY MX report only all year
003BOD, 5-day, 20 deg. C30DA AVG report only all year
003BOD, 5-day, 20 deg. CWKLY MAX report only all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspended30DA AVG report only all year
003Solids, total suspendedWKLY MAX report only all year
003Oil and grease, hexane extr methodWKLY MAX <= 10 mg/L all year
003Nitrogen, total [as N]30DA AVG report only Jul, Aug, Sep
003Nitrogen, total [as N]WKLY MAX report only Jul, Aug, Sep
003Nitrogen, ammonia total [as N]30DA AVG report only Jul, Aug, Sep
003Nitrogen, ammonia total [as N]WKLY MAX report only Jul, Aug, Sep
003Nitrogen, Kjeldahl, dissolved [as N]30DA AVG report only Jul, Aug, Sep
003Nitrogen, Kjeldahl, dissolved [as N]DAILY MX report only Jul, Aug, Sep
003Nitrite + Nitrate total [as N]30DA AVG report only Jul, Aug, Sep
003Nitrite + Nitrate total [as N]WKLY MAX report only Jul, Aug, Sep
003Phosphorus, total [as P]30DA AVG report only Jul, Aug, Sep
003Phosphorus, total [as P]WKLY MAX report only Jul, Aug, Sep
003Carbon, tot organic [TOC]WKLY MAX <= 110 mg/L all year
003Sulfide, dissolved, [as S]30DA AVG report only all year
003Sulfide, dissolved, [as S]WKLY MAX report only all year
003Selenium, total recoverable30DA AVG <= 7.5 ug/L all year
003Selenium, total recoverableDAILY MX <= 15 ug/L all year
003Arsenic, total [as As]30DA AVG report only all year
003Arsenic, total [as As]WKLY MAX report only all year
003Chromium, hexavalent [as Cr]30DA AVG report only all year
003Chromium, hexavalent [as Cr]WKLY MAX report only all year
003Chromium, total recoverable30DA AVG report only all year
003Chromium, total recoverableWKLY MAX report only all year
003Copper, total recoverable30DA AVG report only all year
003Copper, total recoverableDAILY MX report only all year
003Toluene30DA AVG report only all year
003TolueneDAILY MX report only all year
003Benzene30DA AVG report only all year
003BenzeneDAILY MX report only all year
003Phenol30DA AVG report only all year
003PhenolDAILY MX report only all year
003p-Xylene30DA AVG report only all year
003p-XyleneDAILY MX report only all year
003Hydrogen sulfide30DA AVG <= .002 mg/L all year
003Hydrogen sulfideWKLY MAX <= .003 mg/L all year
003Chemical Oxygen Demand [COD]30DA AVG report only all year
003Chemical Oxygen Demand [COD]WKLY AVG report only all year
003Duration of dischargeVALUE report only all year
003Oil and grease visualVALUE report only all year
004Flow rate30DA AVG report only all year
004Flow rateDAILY MX report only all year
004BOD, 5-day, 20 deg. C30DA AVG report only all year
004BOD, 5-day, 20 deg. CWKLY MAX report only all year
004pHMINIMUM >= 6 SU all year
004pHMAXIMUM <= 9 SU all year
004Solids, total suspended30DA AVG report only all year
004Solids, total suspendedWKLY MAX report only all year
004Oil and grease, hexane extr methodMO AVG report only all year
004Oil and grease, hexane extr methodWKLY MAX <= 10 mg/L all year
004Nitrogen, total [as N]30DA AVG report only Jul, Aug, Sep
004Nitrogen, total [as N]WKLY MAX report only Jul, Aug, Sep
004Nitrogen, ammonia total [as N]30DA AVG report only Jul, Aug, Sep
004Nitrogen, ammonia total [as N]WKLY MAX report only Jul, Aug, Sep
004Nitrogen, Kjeldahl, dissolved [as N]30DA AVG report only Jul, Aug, Sep
004Nitrogen, Kjeldahl, dissolved [as N]DAILY MX report only Jul, Aug, Sep
004Nitrite + Nitrate total [as N]30DA AVG report only Jul, Aug, Sep
004Nitrite + Nitrate total [as N]WKLY MAX report only Jul, Aug, Sep
004Phosphorus, total [as P]30DA AVG report only Jul, Aug, Sep
004Phosphorus, total [as P]WKLY MAX report only Jul, Aug, Sep
004Carbon, tot organic [TOC]MO AVG report only all year
004Carbon, tot organic [TOC]DAILY MX <= 110 mg/L all year
004Sulfide, dissolved, [as S]30DA AVG report only all year
004Sulfide, dissolved, [as S]WKLY MAX report only all year
004Selenium, total recoverable30DA AVG <= 7.5 ug/L all year
004Selenium, total recoverableDAILY MX <= 15 ug/L all year
004Arsenic, total [as As]30DA AVG report only all year
004Arsenic, total [as As]WKLY MAX report only all year
004Chromium, hexavalent [as Cr]30DA AVG report only all year
004Chromium, hexavalent [as Cr]WKLY MAX report only all year
004Chromium, total recoverable30DA AVG report only all year
004Chromium, total recoverableWKLY MAX report only all year
004Copper, total recoverable30DA AVG report only all year
004Copper, total recoverableDAILY MX report only all year
004Toluene30DA AVG report only all year
004TolueneDAILY MX report only all year
004Benzene30DA AVG report only all year
004BenzeneDAILY MX report only all year
004Phenol30DA AVG report only all year
004PhenolDAILY MX report only all year
004p-Xylene30DA AVG report only all year
004p-XyleneDAILY MX report only all year
004Hydrogen sulfide30DA AVG report only all year
004Hydrogen sulfideWKLY MAX report only all year
004Chemical Oxygen Demand [COD]30DA AVG report only all year
004Chemical Oxygen Demand [COD]WKLY AVG report only all year
004Duration of dischargeVALUE report only all year
004Oil and grease visualVALUE report only all year
004Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubiaVALUE <= 0 pass=0;fail=1 all year
004Pass/Fail Static Renewal 96Hr Acute Pimephales PromelasVALUE <= 0 pass=0;fail=1 all year
005BOD, 5-day, 20 deg. C30DA AVG report only all year
005BOD, 5-day, 20 deg. CWKLY MAX report only all year
005pHMINIMUM >= 6 SU all year
005pHMAXIMUM <= 9 SU all year
005Solids, total suspended30DA AVG report only all year
005Solids, total suspendedWKLY MAX report only all year
005Oil and grease, hexane extr methodWKLY MAX <= 10 mg/L all year
005Nitrogen, total [as N]30DA AVG report only Jul, Aug, Sep
005Nitrogen, total [as N]WKLY MAX report only Jul, Aug, Sep
005Nitrogen, ammonia total [as N]30DA AVG report only Jul, Aug, Sep
005Nitrogen, ammonia total [as N]WKLY MAX report only Jul, Aug, Sep
005Nitrogen, Kjeldahl, dissolved [as N]30DA AVG report only Jul, Aug, Sep
005Nitrogen, Kjeldahl, dissolved [as N]DAILY MX report only Jul, Aug, Sep
005Nitrite + Nitrate total [as N]30DA AVG report only Jul, Aug, Sep
005Nitrite + Nitrate total [as N]WKLY MAX report only Jul, Aug, Sep
005Phosphorus, total [as P]30DA AVG report only Jul, Aug, Sep
005Phosphorus, total [as P]WKLY MAX report only Jul, Aug, Sep
005Carbon, tot organic [TOC]WKLY MAX <= 110 mg/L all year
005Sulfide, dissolved, [as S]30DA AVG report only all year
005Sulfide, dissolved, [as S]WKLY MAX report only all year
005Selenium, total recoverable30DA AVG <= 7.5 ug/L all year
005Selenium, total recoverableDAILY MX <= 15 ug/L all year
005Arsenic, total [as As]30DA AVG report only all year
005Arsenic, total [as As]WKLY MAX report only all year
005Chromium, hexavalent [as Cr]30DA AVG report only all year
005Chromium, hexavalent [as Cr]WKLY MAX report only all year
005Chromium, total recoverable30DA AVG report only all year
005Chromium, total recoverableWKLY MAX report only all year
005Copper, total recoverable30DA AVG report only all year
005Copper, total recoverableDAILY MX report only all year
005Toluene30DA AVG report only all year
005TolueneDAILY MX report only all year
005Benzene30DA AVG report only all year
005BenzeneDAILY MX report only all year
005Phenol30DA AVG report only all year
005PhenolDAILY MX report only all year
005p-Xylene30DA AVG report only all year
005p-XyleneDAILY MX report only all year
005Hydrogen sulfide30DA AVG <= .002 mg/L all year
005Hydrogen sulfideWKLY MAX <= .003 mg/L all year
005Chemical Oxygen Demand [COD]30DA AVG report only all year
005Chemical Oxygen Demand [COD]WKLY AVG report only all year
005Duration of dischargeVALUE report only all year
005Oil and grease visualVALUE report only all year
006Temperature, water deg. centigrade30DA AVG report only all year
006Temperature, water deg. centigradeDAILY MX report only all year
006Temperature, water deg. centigradeVALUE report only all year
006Flow rate30DA AVG report only all year
006Flow rateDAILY MX report only all year
006BOD, 5-day, 20 deg. C30DA AVG report only all year
006BOD, 5-day, 20 deg. CDAILY MX report only all year
006BOD, 5-day, 20 deg. C30DA AVG report only all year
006BOD, 5-day, 20 deg. CDAILY MX report only all year
006Oxygen demand, chem. [high level] [COD]30DA AVG report only all year
006Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
006Oxygen demand, chem. [high level] [COD]30DA AVG report only all year
006Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
006pHINST MIN >= 6 SU all year
006pHINST MAX <= 9 SU all year
006pHVALUE report only all year
006Solids, total suspended30DA AVG report only all year
006Solids, total suspendedDAILY MX report only all year
006Solids, total suspended30DA AVG report only all year
006Solids, total suspendedDAILY MX report only all year
006Nitrogen, total [as N]30DA AVG report only Aug, Sep, Oct
006Nitrogen, total [as N]DAILY MX report only Aug, Sep, Oct
006Nitrogen, total [as N]30DA AVG report only Aug, Sep, Oct
006Nitrogen, total [as N]DAILY MX report only Aug, Sep, Oct
006Nitrogen, total [as N]VALUE report only Aug, Sep, Oct
006Nitrogen, ammonia total [as N]30DA AVG report only Aug, Sep, Oct
006Nitrogen, ammonia total [as N]DAILY MX report only Aug, Sep, Oct
006Nitrogen, ammonia total [as N]30DA AVG report only Aug, Sep, Oct
006Nitrogen, ammonia total [as N]DAILY MX report only Aug, Sep, Oct
006Nitrogen, ammonia total [as N]VALUE report only all year
006Nitrogen, Kjeldahl, dissolved [as N]30DA AVG report only Aug, Sep, Oct
006Nitrogen, Kjeldahl, total [as N]VALUE report only Aug, Sep, Oct
006Nitrite + Nitrate total [as N]30DA AVG report only Aug, Sep, Oct
006Nitrite + Nitrate total [as N]VALUE report only Aug, Sep, Oct
006Phosphorus, total [as P]30DA AVG report only Aug, Sep, Oct
006Phosphorus, total [as P]DAILY MX report only Aug, Sep, Oct
006Phosphorus, total [as P]30DA AVG report only Aug, Sep, Oct
006Phosphorus, total [as P]DAILY MX report only Aug, Sep, Oct
006Phosphorus, total [as P]VALUE report only Aug, Sep, Oct
006Cyanide, total [as CN]30DA AVG report only all year
006Cyanide, total [as CN]DAILY MX report only all year
006Cyanide, total [as CN]VALUE report only all year
006Sulfide, total [as S]30DA AVG report only all year
006Sulfide, total [as S]DAILY MX report only all year
006Sulfide, total [as S]30DA AVG report only all year
006Sulfide, total [as S]DAILY MX report only all year
006Sulfide, dissolved, [as S]30DA AVG report only all year
006Sulfide, dissolved, [as S]DAILY MX report only all year
006Sulfide, dissolved, [as S]VALUE report only all year
006Hardness, total [as CaCO3]VALUE report only all year
006Fluoride30DA AVG report only all year
006FluorideDAILY MX report only all year
006Arsenic, total recoverableMO AVG <= 10 ug/L all year
006Arsenic, total recoverableDAILY MX <= 10 ug/L all year
006Arsenic, total recoverableVALUE report only all year
006Iron, total recoverableMO AVG report only all year
006Iron, total recoverableDAILY MX report only all year
006Iron, total recoverableVALUE report only all year
006Selenium, total recoverableMO AVG report only all year
006Selenium, total recoverableDAILY MX report only all year
006Selenium, total recoverableVALUE report only all year
006Thallium, total recoverableMO AVG report only all year
006Thallium, total recoverableDAILY MX report only all year
006Thallium, total recoverableVALUE report only all year
006Chromium, hexavalent [as Cr]30DA AVG report only all year
006Chromium, hexavalent [as Cr]DAILY MX report only all year
006Chromium, hexavalent [as Cr]30DA AVG report only all year
006Chromium, hexavalent [as Cr]DAILY MX report only all year
006Chromium, hexavalent [as Cr]VALUE report only all year
006Aluminum, dissolved [as Al]MO AVG report only all year
006Aluminum, dissolved [as Al]DAILY MX report only all year
006Aluminum, dissolved [as Al]VALUE report only all year
006Cadmium, total recoverable30DA AVG report only all year
006Cadmium, total recoverableDAILY MX report only all year
006Cadmium, total recoverableVALUE report only all year
006Lead, total recoverable30DA AVG report only all year
006Lead, total recoverableDAILY MX report only all year
006Lead, total recoverableVALUE report only all year
006Chromium, total recoverable30DA AVG report only all year
006Chromium, total recoverableDAILY MX report only all year
006Chromium, total recoverable30DA AVG report only all year
006Chromium, total recoverableDAILY MX report only all year
006Chromium, total recoverableVALUE report only all year
006Copper, total recoverableMO AVG report only all year
006Copper, total recoverableDAILY MX report only all year
006Copper, total recoverableVALUE report only all year
006Oil and greaseDAILY MX <= 10 mg/L all year
006Oil and greaseDAILY MX report only all year
006Phenolics, total recoverable30DA AVG report only all year
006Phenolics, total recoverableDAILY MX report only all year
006Phenolics, total recoverable30DA AVG report only all year
006Phenolics, total recoverableDAILY MX report only all year
006PhenolVALUE report only all year
006Chlorine, total residualMO AVG report only all year
006Chlorine, total residualDAILY MX report only all year
006Hydrogen sulfide30DA AVG report only all year
006Hydrogen sulfideDAILY MX report only all year
006Hydrogen sulfideVALUE report only all year
006Mercury, total recoverableMO AVG report only all year
006Mercury, total recoverableDAILY MX report only all year
006Mercury, total recoverableVALUE report only all year
006Oil and grease visualINST MAX report only all year
006Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubiaVALUE <= 0 pass=0;fail=1 all year
006Pass/Fail Static Renewal 96Hr Acute Pimephales PromelasVALUE <= 0 pass=0;fail=1 all year
SUMBOD, 5-day, 20 deg. C30DA AVG <= 270 lb/d all year
SUMBOD, 5-day, 20 deg. CDAILY MX <= 485 lb/d all year
SUMOxygen demand, chem. [high level] [COD]30DA AVG <= 1253 lb/d all year
SUMOxygen demand, chem. [high level] [COD]DAILY MX <= 2243 lb/d all year
SUMSolids, total suspended30DA AVG <= 215 lb/d all year
SUMSolids, total suspendedDAILY MX <= 338 lb/d all year
SUMOil & Grease30DA AVG <= 78 lb/d all year
SUMOil & GreaseDAILY MX <= 148 lb/d all year
SUMNitrogen, ammonia total [as N]30DA AVG <= 143 lb/d all year
SUMNitrogen, ammonia total [as N]DAILY MX <= 314 lb/d all year
SUMSulfide, total [as S]30DA AVG <= 1.38 lb/d all year
SUMSulfide, total [as S]DAILY MX <= 3.09 lb/d all year
SUMChromium, hexavalent [as Cr]30DA AVG <= .17 lb/d all year
SUMChromium, hexavalent [as Cr]DAILY MX <= .39 lb/d all year
SUMChromium, total [as Cr]30DA AVG <= 2.07 lb/d all year
SUMChromium, total [as Cr]DAILY MX <= 4.51 lb/d all year
SUMPhenolics, total recoverable30DA AVG <= 1.08 lb/d all year
SUMPhenolics, total recoverableDAILY MX <= 2.26 lb/d 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