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Federal facility, (Unknown City), Wyoming. NPDES permit WY0096679 expired Mar 31, 2026; its limits still apply. Last 12 months: no values over a limit, 184 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Specific conductance | daily minimum | ≥ 7500 umho/cm | all year | 001 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | 001 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | 001 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | 001 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 001 |
| Fluoride, dissolved [as F] | daily maximum | report only (ug/L) | all year | 001 |
| Barium, total [as Ba] | daily maximum | ≤ 2000 ug/L | all year | 001 |
| Iron, dissolved [as Fe] | daily maximum | ≤ 1000 ug/L | all year | 001 |
| Manganese, dissolved [as Mn] | daily maximum | ≤ 680 ug/L | all year | 001 |
| Duration | monthly total | report only (d) | all year | 001 |
| Duration | monthly total | report only (d) | all year | 001 |
| Bicarbonate as [CaCO3] | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (ton/d) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (ton/d) | all year | 001 |
| Flow | monthly average | report only (MGD) | all year | 001 |
| Flow | monthly average | report only (MGD) | all year | 001 |
| Flow | daily maximum | report only (MGD) | all year | 001 |
| Flow | daily maximum | report only (MGD) | all year | 001 |
| Sulfate | daily maximum | ≤ 3000 mg/L | all year | 001 |
| Hydrocarbons, total petroleum | daily maximum | ≤ 10 mg/L | all year | 001 |
| Specific conductance | daily minimum | ≥ 7500 umho/cm | all year | 002 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 002 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | 002 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | 002 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | 002 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 002 |
| Fluoride, dissolved [as F] | daily maximum | report only (ug/L) | all year | 002 |
| Barium, total [as Ba] | daily maximum | ≤ 2000 ug/L | all year | 002 |
| Iron, dissolved [as Fe] | daily maximum | ≤ 1000 ug/L | all year | 002 |
| Manganese, dissolved [as Mn] | daily maximum | ≤ 680 ug/L | all year | 002 |
| Duration | monthly total | report only (d) | all year | 002 |
| Duration | monthly total | report only (d) | all year | 002 |
| Bicarbonate as [CaCO3] | daily maximum | report only (mg/L) | all year | 002 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 002 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 002 |
| Solids, total dissolved | daily maximum | report only (ton/d) | all year | 002 |
| Solids, total dissolved | daily maximum | report only (ton/d) | all year | 002 |
| Flow | monthly average | report only (MGD) | all year | 002 |
| Flow | monthly average | report only (MGD) | all year | 002 |
| Flow | daily maximum | report only (MGD) | all year | 002 |
| Flow | daily maximum | report only (MGD) | all year | 002 |
| Sulfate | daily maximum | ≤ 3000 mg/L | all year | 002 |
| Hydrocarbons, total petroleum | daily maximum | ≤ 10 mg/L | all year | 002 |
| Flow | instantaneous maximum | report only (MGD) | Aug–Nov | FM01 |
| Flow | instantaneous maximum | report only (MGD) | Aug–Nov | FM01 |
| Flow, total | monthly total | ≤ .1806 Mgal | all year | SUM |
| Flow, total | monthly total | ≤ .1806 Mgal | all year | SUM |
| Solids, total dissolved | daily maximum | ≤ 1 ton/d | all year | SUM |
| Solids, total dissolved | daily maximum | ≤ 1 ton/d | all year | SUM |
| Specific conductance | daily maximum | report only (umho/cm) | Aug–Nov | TRB1 |
| Specific conductance | daily maximum | report only (umho/cm) | Aug–Nov | TRB1 |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | Aug–Nov | TRB1 |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | Aug–Nov | TRB1 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | Aug–Nov | TRB1 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | Aug–Nov | TRB1 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | Aug–Nov | TRB1 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | Aug–Nov | TRB1 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | Aug–Nov | TRB1 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | Aug–Nov | TRB1 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | Aug–Nov | TRB1 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | Aug–Nov | TRB1 |
| Fluoride | daily maximum | report only (ug/L) (alert, not enforceable) | Aug–Nov | TRB1 |
| Fluoride | daily maximum | report only (ug/L) (alert, not enforceable) | Aug–Nov | TRB1 |
| Barium, total [as Ba] | daily maximum | report only (ug/L) | Aug–Nov | TRB1 |
| Barium, total [as Ba] | daily maximum | report only (ug/L) | Aug–Nov | TRB1 |
| Iron, total [as Fe] | daily maximum | report only (ug/L) | Aug–Nov | TRB1 |
| Iron, total [as Fe] | daily maximum | report only (ug/L) | Aug–Nov | TRB1 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Aug–Nov | TRB1 |
| Manganese, dissolved [as Mn] | daily maximum | report only (ug/L) | Aug–Nov | TRB1 |
| Bicarbonate as [CaCO3] | daily maximum | report only (mg/L) | Aug–Nov | TRB1 |
| Bicarbonate as [CaCO3] | daily maximum | report only (mg/L) | Aug–Nov | TRB1 |
| Flow, total | monthly total | report only (Mgal) | Aug–Nov | TRB1 |
| Flow, total | monthly total | report only (Mgal) | Aug–Nov | TRB1 |
| Sulfate | daily maximum | report only (mg/L) | Aug–Nov | TRB1 |
| Sulfate | daily maximum | report only (mg/L) | Aug–Nov | TRB1 |
Cited limits by parameter: Wyoming's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/WY0096679 · MCP: https://passage-data.com/mcp