NPDES permit WY0055590 · Minor NON-POTW · effective, expires 2029-09-30 · EPA's file as of 2026-09-19
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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 | 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 | Alkalinity, total [as CaCO3] | DAILY MX | report only | all year |
| 001 | Calcium, dissolved [as Ca] | DAILY MX | report only | 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 | Magnesium, dissolved [as Mg] | DAILY MX | report only | all year |
| 001 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| 001 | Sodium, dissolved [as Na] | DAILY MX | report only | all year |
| 001 | Sodium adsorption ratio | DAILY MX | report only | all year |
| 001 | Sodium adsorption ratio | 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 | Duration | MO TOTAL | report only | all year |
| 001 | Duration | MO TOTAL | report only | all year |
| 001 | Bicarbonate as [CaCO3] | DAILY MX | report only | all year |
| 001 | Solids, total dissolved | DAILY MX | report only | all year |
| 001 | Solids, total dissolved | DAILY MX | report only | all year |
| 001 | Flow | DAILY MX | report only | all year |
| 001 | Flow | DAILY MX | report only | all year |
| 001 | Flow | MO AVG | report only | all year |
| 001 | Flow | MO AVG | 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 |
| 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 |
| 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 | Flow | INST MAX | report only | all year |
| TRB1 | Flow | INST MAX | 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