Petroleum Resource Management

NPDES permit WY0031461 · Minor NON-POTW · effective, expires 2028-05-31 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 180 forms filed late

Last period with anything received: 2026-06-30.

Reporting

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

Limits in force (200)

OutfallParameterStatisticLimitMonths
001Specific conductanceDAILY MX <= 7500 umho/cm all year
001pHINST MIN >= 6.5 SU (alert) all year
001pHINST MIN >= 6.5 SU (alert) all year
001pHINST MAX <= 9 SU (alert) all year
001pHINST MAX <= 9 SU (alert) all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Sulfide, total [as S]DAILY MX report only all year
001Sulfide, total [as S]DAILY MX report only all year
001Sulfate, total [as SO4]DAILY MX <= 3000 mg/L all year
001Phosphate, ortho [as P]DAILY MX report only all year
001ChlorideDAILY MX <= 2000 mg/L all year
001FlowDAILY MX report only all year
001FlowDAILY MX report only all year
001FlowMO AVG report only all year
001FlowMO AVG report only all year
001Produced water, oil and greaseDAILY MX <= 10 mg/L all year
001Produced water, oil and greaseDAILY MX <= 10 mg/L all year
002Specific conductanceDAILY MX <= 7500 umho/cm all year
002pHINST MIN >= 6.5 SU (alert) all year
002pHINST MIN >= 6.5 SU (alert) all year
002pHINST MAX <= 9 SU (alert) all year
002pHINST MAX <= 9 SU (alert) all year
002Nitrogen, total [as N]DAILY MX report only all year
002Nitrogen, ammonia total [as N]DAILY MX report only all year
002Nitrite + Nitrate total [as N]DAILY MX report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Sulfide, total [as S]DAILY MX report only all year
002Sulfide, total [as S]DAILY MX report only all year
002Sulfate, total [as SO4]DAILY MX <= 3000 mg/L all year
002Phosphate, ortho [as P]DAILY MX report only all year
002ChlorideDAILY MX <= 2000 mg/L all year
002FlowDAILY MX report only all year
002FlowDAILY MX report only all year
002FlowMO AVG report only all year
002FlowMO AVG report only all year
002Produced water, oil and greaseDAILY MX <= 10 mg/L all year
002Produced water, oil and greaseDAILY MX <= 10 mg/L all year
003Specific conductanceDAILY MX <= 7500 umho/cm all year
003pHINST MIN >= 6.5 SU (alert) all year
003pHINST MIN >= 6.5 SU (alert) all year
003pHINST MAX <= 9 SU (alert) all year
003pHINST MAX <= 9 SU (alert) all year
003Nitrogen, total [as N]DAILY MX report only all year
003Nitrogen, ammonia total [as N]DAILY MX report only all year
003Nitrite + Nitrate total [as N]DAILY MX report only all year
003Phosphorus, total [as P]DAILY MX report only all year
003Sulfide, total [as S]DAILY MX report only all year
003Sulfide, total [as S]DAILY MX report only all year
003Sulfate, total [as SO4]DAILY MX <= 3000 mg/L all year
003Phosphate, ortho [as P]DAILY MX report only all year
003ChlorideDAILY MX <= 2000 mg/L all year
003FlowDAILY MX report only all year
003FlowDAILY MX report only all year
003FlowMO AVG report only all year
003FlowMO AVG report only all year
003Produced water, oil and greaseDAILY MX <= 10 mg/L all year
003Produced water, oil and greaseDAILY MX <= 10 mg/L all year
004Specific conductanceDAILY MX <= 7500 umho/cm all year
004pHINST MIN >= 6.5 SU (alert) all year
004pHINST MIN >= 6.5 SU (alert) all year
004pHINST MAX <= 9 SU (alert) all year
004pHINST MAX <= 9 SU (alert) all year
004Nitrogen, total [as N]DAILY MX report only all year
004Nitrogen, ammonia total [as N]DAILY MX report only all year
004Nitrite + Nitrate total [as N]DAILY MX report only all year
004Phosphorus, total [as P]DAILY MX report only all year
004Sulfide, total [as S]DAILY MX report only all year
004Sulfide, total [as S]DAILY MX report only all year
004Sulfate, total [as SO4]DAILY MX <= 3000 mg/L all year
004Phosphate, ortho [as P]DAILY MX report only all year
004ChlorideDAILY MX <= 2000 mg/L all year
004FlowDAILY MX report only all year
004FlowDAILY MX report only all year
004FlowMO AVG report only all year
004FlowMO AVG report only all year
004Produced water, oil and greaseDAILY MX <= 10 mg/L all year
004Produced water, oil and greaseDAILY MX <= 10 mg/L all year
005Specific conductanceDAILY MX <= 7500 umho/cm all year
005pHINST MIN >= 6.5 SU (alert) all year
005pHINST MIN >= 6.5 SU (alert) all year
005pHINST MAX <= 9 SU (alert) all year
005pHINST MAX <= 9 SU (alert) all year
005Nitrogen, total [as N]DAILY MX report only all year
005Nitrogen, ammonia total [as N]DAILY MX report only all year
005Nitrite + Nitrate total [as N]DAILY MX report only all year
005Phosphorus, total [as P]DAILY MX report only all year
005Sulfide, total [as S]DAILY MX report only all year
005Sulfide, total [as S]DAILY MX report only all year
005Sulfate, total [as SO4]DAILY MX <= 3000 mg/L all year
005Phosphate, ortho [as P]DAILY MX report only all year
005ChlorideDAILY MX <= 2000 mg/L all year
005FlowDAILY MX report only all year
005FlowDAILY MX report only all year
005FlowMO AVG report only all year
005FlowMO AVG report only all year
005Produced water, oil and greaseDAILY MX <= 10 mg/L all year
005Produced water, oil and greaseDAILY MX <= 10 mg/L all year
006Specific conductanceDAILY MX <= 7500 umho/cm all year
006pHINST MIN >= 6.5 SU (alert) all year
006pHINST MIN >= 6.5 SU (alert) all year
006pHINST MAX <= 9 SU (alert) all year
006pHINST MAX <= 9 SU (alert) all year
006Nitrogen, total [as N]DAILY MX report only all year
006Nitrogen, ammonia total [as N]DAILY MX report only all year
006Nitrite + Nitrate total [as N]DAILY MX report only all year
006Phosphorus, total [as P]DAILY MX report only all year
006Sulfide, total [as S]DAILY MX report only all year
006Sulfide, total [as S]DAILY MX report only all year
006Sulfate, total [as SO4]DAILY MX <= 3000 mg/L all year
006Phosphate, ortho [as P]DAILY MX report only all year
006ChlorideDAILY MX <= 2000 mg/L all year
006FlowDAILY MX report only all year
006FlowDAILY MX report only all year
006FlowMO AVG report only all year
006FlowMO AVG report only all year
006Produced water, oil and greaseDAILY MX <= 10 mg/L all year
006Produced water, oil and greaseDAILY MX <= 10 mg/L all year
007Specific conductanceDAILY MX <= 7500 umho/cm all year
007pHINST MIN >= 6.5 SU (alert) all year
007pHINST MIN >= 6.5 SU (alert) all year
007pHINST MAX <= 9 SU (alert) all year
007pHINST MAX <= 9 SU (alert) all year
007Nitrogen, total [as N]DAILY MX report only all year
007Nitrogen, ammonia total [as N]DAILY MX report only all year
007Nitrite + Nitrate total [as N]DAILY MX report only all year
007Phosphorus, total [as P]DAILY MX report only all year
007Sulfide, total [as S]DAILY MX report only all year
007Sulfide, total [as S]DAILY MX report only all year
007Sulfate, total [as SO4]DAILY MX <= 3000 mg/L all year
007Phosphate, ortho [as P]DAILY MX report only all year
007ChlorideDAILY MX <= 2000 mg/L all year
007FlowDAILY MX report only all year
007FlowDAILY MX report only all year
007FlowMO AVG report only all year
007FlowMO AVG report only all year
007Produced water, oil and greaseDAILY MX <= 10 mg/L all year
007Produced water, oil and greaseDAILY MX <= 10 mg/L all year
008Specific conductanceDAILY MX <= 7500 umho/cm all year
008pHINST MIN >= 6.5 SU (alert) all year
008pHINST MIN >= 6.5 SU (alert) all year
008pHINST MAX <= 9 SU (alert) all year
008pHINST MAX <= 9 SU (alert) all year
008Nitrogen, total [as N]DAILY MX report only all year
008Nitrogen, ammonia total [as N]DAILY MX report only all year
008Nitrite + Nitrate total [as N]DAILY MX report only all year
008Phosphorus, total [as P]DAILY MX report only all year
008Sulfide, total [as S]DAILY MX report only all year
008Sulfide, total [as S]DAILY MX report only all year
008Sulfate, total [as SO4]DAILY MX <= 3000 mg/L all year
008Phosphate, ortho [as P]DAILY MX report only all year
008ChlorideDAILY MX <= 2000 mg/L all year
008FlowDAILY MX report only all year
008FlowDAILY MX report only all year
008FlowMO AVG report only all year
008FlowMO AVG report only all year
008Produced water, oil and greaseDAILY MX <= 10 mg/L all year
008Produced water, oil and greaseDAILY MX <= 10 mg/L all year
009Specific conductanceDAILY MX <= 7500 umho/cm all year
009pHINST MIN >= 6.5 SU (alert) all year
009pHINST MIN >= 6.5 SU (alert) all year
009pHINST MAX <= 9 SU (alert) all year
009pHINST MAX <= 9 SU (alert) all year
009Nitrogen, total [as N]DAILY MX report only all year
009Nitrogen, ammonia total [as N]DAILY MX report only all year
009Nitrite + Nitrate total [as N]DAILY MX report only all year
009Phosphorus, total [as P]DAILY MX report only all year
009Sulfide, total [as S]DAILY MX report only all year
009Sulfide, total [as S]DAILY MX report only all year
009Sulfate, total [as SO4]DAILY MX <= 3000 mg/L all year
009Phosphate, ortho [as P]DAILY MX report only all year
009ChlorideDAILY MX <= 2000 mg/L all year
009FlowDAILY MX report only all year
009FlowDAILY MX report only all year
009FlowMO AVG report only all year
009FlowMO AVG report only all year
009Produced water, oil and greaseDAILY MX <= 10 mg/L all year
009Produced water, oil and greaseDAILY MX <= 10 mg/L all year
010Specific conductanceDAILY MX <= 7500 umho/cm all year
010pHINST MIN >= 6.5 SU (alert) all year
010pHINST MIN >= 6.5 SU (alert) all year
010pHINST MAX <= 9 SU (alert) all year
010pHINST MAX <= 9 SU (alert) all year
010Nitrogen, total [as N]DAILY MX report only all year
010Nitrogen, ammonia total [as N]DAILY MX report only all year
010Nitrite + Nitrate total [as N]DAILY MX report only all year
010Phosphorus, total [as P]DAILY MX report only all year
010Sulfide, total [as S]DAILY MX report only all year
010Sulfide, total [as S]DAILY MX report only all year
010Sulfate, total [as SO4]DAILY MX <= 3000 mg/L all year
010Phosphate, ortho [as P]DAILY MX report only all year
010ChlorideDAILY MX <= 2000 mg/L all year
010FlowDAILY MX report only all year
010FlowDAILY MX report only all year
010FlowMO AVG report only all year
010FlowMO AVG report only all year
010Produced water, oil and greaseDAILY MX <= 10 mg/L all year
010Produced water, oil and greaseDAILY MX <= 10 mg/L 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