NPDES permit WY0055638 · Minor NON-POTW · expired, expires 2025-11-30 · EPA's file as of 2026-09-19
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This permit expired on 2025-11-30 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-06-30.
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).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Specific conductance | DAILY MX | <= 7500 umho/cm | all year |
| 001 | pH | INST MIN | >= 6.5 SU | all year |
| 001 | pH | INST MAX | <= 9 SU | all year |
| 001 | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| 001 | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| 001 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| 001 | Arsenic, total recoverable | DAILY MX | <= 8.4 ug/L | all year |
| 001 | Barium, total recoverable | DAILY MX | <= 1800 ug/L | all year |
| 001 | Iron, dissolved [as Fe] | DAILY MX | <= 1000 ug/L | all year |
| 001 | Chloride | DAILY MX | <= 150 mg/L | all year |
| 001 | Bicarbonate as [CaCO3] | DAILY MX | report only | all year |
| 001 | Flow | MO AVG | report only | all year |
| 001 | Flow | DAILY MX | report only | all year |
| 001 | Pass/Fail Static 48Hr Acute Daphnia Magna | 4C | = 0 pass=0;fail=1 | all year |
| 001 | Pass/Fail Static 96 Hr Acute Pimephales Promelas | 9D | = 0 pass=0;fail=1 | all year |
| 002 | Specific conductance | DAILY MX | <= 7500 umho/cm | all year |
| 002 | pH | INST MIN | >= 6.5 SU | all year |
| 002 | pH | INST MAX | <= 9 SU | all year |
| 002 | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| 002 | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| 002 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| 002 | Arsenic, total recoverable | DAILY MX | <= 8.4 ug/L | all year |
| 002 | Barium, total recoverable | DAILY MX | <= 1800 ug/L | all year |
| 002 | Iron, dissolved [as Fe] | DAILY MX | <= 1000 ug/L | all year |
| 002 | Chloride | DAILY MX | <= 150 mg/L | all year |
| 002 | Bicarbonate as [CaCO3] | DAILY MX | report only | all year |
| 002 | Flow | MO AVG | report only | all year |
| 002 | Flow | DAILY MX | report only | all year |
| 002 | Pass/Fail Static 48Hr Acute Daphnia Magna | 4C | = 0 pass=0;fail=1 | all year |
| 002 | Pass/Fail Static 96 Hr Acute Pimephales Promelas | 9D | = 0 pass=0;fail=1 | all year |
| 003 | Specific conductance | DAILY MX | <= 7500 umho/cm | all year |
| 003 | pH | INST MIN | >= 6.5 SU | all year |
| 003 | pH | INST MAX | <= 9 SU | all year |
| 003 | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| 003 | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| 003 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| 003 | Arsenic, total recoverable | DAILY MX | <= 8.4 ug/L | all year |
| 003 | Barium, total recoverable | DAILY MX | <= 1800 ug/L | all year |
| 003 | Iron, dissolved [as Fe] | DAILY MX | <= 1000 ug/L | all year |
| 003 | Chloride | DAILY MX | <= 150 mg/L | all year |
| 003 | Bicarbonate as [CaCO3] | DAILY MX | report only | all year |
| 003 | Flow | MO AVG | report only | all year |
| 003 | Flow | DAILY MX | report only | all year |
| 003 | Pass/Fail Static 48Hr Acute Daphnia Magna | 4C | = 0 pass=0;fail=1 | all year |
| 003 | Pass/Fail Static 96 Hr Acute Pimephales Promelas | 9D | = 0 pass=0;fail=1 | all year |
| 004 | Specific conductance | DAILY MX | <= 7500 umho/cm | all year |
| 004 | pH | INST MIN | >= 6.5 SU | all year |
| 004 | pH | INST MAX | <= 9 SU | all year |
| 004 | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| 004 | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| 004 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| 004 | Arsenic, total recoverable | DAILY MX | <= 8.4 ug/L | all year |
| 004 | Barium, total recoverable | DAILY MX | <= 1800 ug/L | all year |
| 004 | Iron, dissolved [as Fe] | DAILY MX | <= 1000 ug/L | all year |
| 004 | Chloride | DAILY MX | <= 150 mg/L | all year |
| 004 | Bicarbonate as [CaCO3] | DAILY MX | report only | all year |
| 004 | Flow | MO AVG | report only | all year |
| 004 | Flow | DAILY MX | report only | all year |
| 004 | Pass/Fail Static 48Hr Acute Daphnia Magna | 4C | = 0 pass=0;fail=1 | all year |
| 004 | Pass/Fail Static 96 Hr Acute Pimephales Promelas | 9D | = 0 pass=0;fail=1 | all year |
| 005 | Specific conductance | DAILY MX | <= 7500 umho/cm | all year |
| 005 | pH | INST MIN | >= 6.5 SU | all year |
| 005 | pH | INST MAX | <= 9 SU | all year |
| 005 | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| 005 | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| 005 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| 005 | Arsenic, total recoverable | DAILY MX | <= 8.4 ug/L | all year |
| 005 | Barium, total recoverable | DAILY MX | <= 1800 ug/L | all year |
| 005 | Iron, dissolved [as Fe] | DAILY MX | <= 1000 ug/L | all year |
| 005 | Chloride | DAILY MX | <= 150 mg/L | all year |
| 005 | Bicarbonate as [CaCO3] | DAILY MX | report only | all year |
| 005 | Flow | MO AVG | report only | all year |
| 005 | Flow | DAILY MX | report only | all year |
| 005 | Pass/Fail Static 48Hr Acute Daphnia Magna | 4C | = 0 pass=0;fail=1 | all year |
| 005 | Pass/Fail Static 96 Hr Acute Pimephales Promelas | 9D | = 0 pass=0;fail=1 | all year |
| 006 | Specific conductance | DAILY MX | <= 7500 umho/cm | all year |
| 006 | pH | INST MIN | >= 6.5 SU | all year |
| 006 | pH | INST MAX | <= 9 SU | all year |
| 006 | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| 006 | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| 006 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| 006 | Arsenic, total recoverable | DAILY MX | <= 8.4 ug/L | all year |
| 006 | Barium, total recoverable | DAILY MX | <= 1800 ug/L | all year |
| 006 | Iron, dissolved [as Fe] | DAILY MX | <= 1000 ug/L | all year |
| 006 | Chloride | DAILY MX | <= 150 mg/L | all year |
| 006 | Bicarbonate as [CaCO3] | DAILY MX | report only | all year |
| 006 | Flow | MO AVG | report only | all year |
| 006 | Flow | DAILY MX | report only | all year |
| 006 | Pass/Fail Static 48Hr Acute Daphnia Magna | 4C | = 0 pass=0;fail=1 | all year |
| 006 | Pass/Fail Static 96 Hr Acute Pimephales Promelas | 9D | = 0 pass=0;fail=1 | all year |
| DPR | Specific conductance | DAILY MX | report only | all year |
| DPR | Specific conductance | DAILY MX | report only | all year |
| DPR | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| DPR | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| DPR | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| DPR | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| DPR | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| DPR | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| DPR | Sodium adsorption ratio | DAILY MX | report only | all year |
| DPR | Sodium adsorption ratio | DAILY MX | report only | all year |
| R01 | Specific conductance | DAILY MX | report only | all year |
| R01 | Digester gas, volume | DAILY MX | report only | all year |
| R01 | pH | DAILY MN | report only | all year |
| R01 | pH | DAILY MX | report only | all year |
| R01 | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| R01 | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| R01 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| R01 | Sulfate, total [as SO4] | DAILY MX | report only | all year |
| R01 | Bicarbonate as [CaCO3] | DAILY MX | report only | all year |
| R01 | Sodium Absorption Ratio | DAILY MX | report only | all year |
| R02 | Specific conductance | DAILY MX | report only | all year |
| R02 | Digester gas, volume | DAILY MX | report only | all year |
| R02 | pH | DAILY MN | report only | all year |
| R02 | pH | DAILY MX | report only | all year |
| R02 | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| R02 | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| R02 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| R02 | Sulfate, total [as SO4] | DAILY MX | report only | all year |
| R02 | Bicarbonate as [CaCO3] | DAILY MX | report only | all year |
| R02 | Sodium Absorption Ratio | DAILY MX | report only | all year |
| R03 | Specific conductance | DAILY MX | report only | all year |
| R03 | Digester gas, volume | DAILY MX | report only | all year |
| R03 | pH | DAILY MN | report only | all year |
| R03 | pH | DAILY MX | report only | all year |
| R03 | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| R03 | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| R03 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| R03 | Sulfate, total [as SO4] | DAILY MX | report only | all year |
| R03 | Bicarbonate as [CaCO3] | DAILY MX | report only | all year |
| R03 | Sodium Absorption Ratio | DAILY MX | report only | all year |
| R04 | Specific conductance | DAILY MX | report only | all year |
| R04 | Digester gas, volume | DAILY MX | report only | all year |
| R04 | pH | DAILY MN | report only | all year |
| R04 | pH | DAILY MX | report only | all year |
| R04 | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| R04 | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| R04 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| R04 | Sulfate, total [as SO4] | DAILY MX | report only | all year |
| R04 | Bicarbonate as [CaCO3] | DAILY MX | report only | all year |
| R04 | Sodium Absorption Ratio | DAILY MX | report only | all year |
| TRB1 | Specific conductance | DAILY MX | report only | all year |
| TRB1 | Specific conductance | DAILY MX | report only | all year |
| TRB1 | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| TRB1 | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| TRB1 | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| TRB1 | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| TRB1 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| TRB1 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| TRB1 | Sodium adsorption ratio | DAILY MX | report only | all year |
| TRB1 | Sodium adsorption ratio | DAILY MX | report only | all year |
| TRB1 | Priority pollutants scan [yes/no] | MO AVG | report only | all year |
| TRB1 | Priority pollutants scan [yes/no] | MO AVG | report only | all year |
| TRB1 | Priority pollutants scan [yes/no] | QRTR AVG | report only | all year |
| TRB1 | Priority pollutants scan [yes/no] | QRTR AVG | report only | all year |
| TRB1 | Priority pollutants scan [yes/no] | ANNL AVG | report only | all year |
| TRB1 | Priority pollutants scan [yes/no] | ANNL AVG | report only | all year |
| TRB1 | Priority pollutants scan [yes/no] | ANNL AVG | report only | all year |
| TRB1 | Priority pollutants scan [yes/no] | ANNL AVG | report only | all year |
| TRB1 | Flow | MO AVG | report only | all year |
| TRB1 | Flow | MO AVG | report only | all year |
| TRB1 | Flow | DAILY MX | report only | all year |
| TRB1 | Flow | DAILY MX | report only | all year |
| UPR | Specific conductance | DAILY MX | report only | all year |
| UPR | Specific conductance | DAILY MX | report only | all year |
| UPR | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| UPR | Calcium, dissolved [as Ca] | DAILY MX | report only | all year |
| UPR | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| UPR | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| UPR | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| UPR | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| UPR | Sodium adsorption ratio | DAILY MX | report only | all year |
| UPR | Sodium adsorption ratio | DAILY 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