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Crude Petroleum And Natural Gas, (Unknown City), Wyoming. NPDES permit WY0052833, in force until Oct 31, 2030. Last 12 months: no values over a limit, 1 required value missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Specific conductance | daily maximum | ≤ 7500 umho/cm | all year | 002 |
| Specific conductance | daily maximum | ≤ 7500 umho/cm | all year | 002 |
| Specific conductance | daily maximum | ≤ 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 |
| 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 |
| 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, dissolved [as Na] | daily maximum | report only (mg/L) | all year | 002 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 002 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 002 |
| Arsenic, total recoverable | daily maximum | ≤ 8.4 ug/L | all year | 002 |
| Barium, total recoverable | daily maximum | ≤ 1800 ug/L | all year | 002 |
| Iron, dissolved [as Fe] | daily maximum | ≤ 1000 ug/L | all year | 002 |
| Chloride | daily maximum | ≤ 150 mg/L | all year | 002 |
| Bicarbonate as [CaCO3] | daily maximum | report only (mg/L) | 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 |
| Pass/Fail Static 48Hr Acute Daphnia Magna | 48-hour maximum | ≤ 0 pass=0;fail=1 | all year | 002 |
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 96-hour value | ≤ 0 pass=0;fail=1 | all year | 002 |
| Specific conductance | daily maximum | ≤ 7500 umho/cm | all year | 005 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 005 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 005 |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 005 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | 005 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | 005 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | 005 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | 005 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | 005 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | 005 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 005 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 005 |
| Arsenic, total recoverable | daily maximum | ≤ 8.4 ug/L | all year | 005 |
| Barium, total recoverable | daily maximum | ≤ 1800 ug/L | all year | 005 |
| Iron, dissolved [as Fe] | daily maximum | ≤ 1000 ug/L | all year | 005 |
| Chloride | daily maximum | ≤ 150 mg/L | all year | 005 |
| Bicarbonate as [CaCO3] | daily maximum | report only (mg/L) | all year | 005 |
| Flow | monthly average | report only (MGD) | all year | 005 |
| Flow | monthly average | report only (MGD) | all year | 005 |
| Flow | daily maximum | report only (MGD) | all year | 005 |
| Flow | daily maximum | report only (MGD) | all year | 005 |
| Pass/Fail Static 48Hr Acute Daphnia Magna | 48-hour maximum | ≤ 0 pass=0;fail=1 | all year | 005 |
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 96-hour value | ≤ 0 pass=0;fail=1 | all year | 005 |
| Specific conductance | daily maximum | ≤ 7500 umho/cm | all year | 006 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 006 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 006 |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 006 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | 006 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | 006 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | 006 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | 006 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | 006 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | 006 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 006 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 006 |
| Arsenic, total recoverable | daily maximum | ≤ 8.4 ug/L | all year | 006 |
| Barium, total recoverable | daily maximum | ≤ 1800 ug/L | all year | 006 |
| Iron, dissolved [as Fe] | daily maximum | ≤ 1000 ug/L | all year | 006 |
| Chloride | daily maximum | ≤ 150 mg/L | all year | 006 |
| Bicarbonate as [CaCO3] | daily maximum | report only (mg/L) | all year | 006 |
| Flow | monthly average | report only (MGD) | all year | 006 |
| Flow | monthly average | report only (MGD) | all year | 006 |
| Flow | daily maximum | report only (MGD) | all year | 006 |
| Flow | daily maximum | report only (MGD) | all year | 006 |
| Pass/Fail Static 48Hr Acute Daphnia Magna | 48-hour maximum | ≤ 0 pass=0;fail=1 | all year | 006 |
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 96-hour value | ≤ 0 pass=0;fail=1 | all year | 006 |
| Specific conductance | daily maximum | ≤ 7500 umho/cm | all year | 010 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 010 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 010 |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 010 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | 010 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | 010 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | 010 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | 010 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | 010 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | 010 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 010 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 010 |
| Arsenic, total recoverable | daily maximum | ≤ 8.4 ug/L | all year | 010 |
| Barium, total recoverable | daily maximum | ≤ 1800 ug/L | all year | 010 |
| Iron, dissolved [as Fe] | daily maximum | ≤ 1000 ug/L | all year | 010 |
| Chloride | daily maximum | ≤ 150 mg/L | all year | 010 |
| Bicarbonate as [CaCO3] | daily maximum | report only (mg/L) | all year | 010 |
| Flow | monthly average | report only (MGD) | all year | 010 |
| Flow | monthly average | report only (MGD) | all year | 010 |
| Flow | daily maximum | report only (MGD) | all year | 010 |
| Flow | daily maximum | report only (MGD) | all year | 010 |
| Pass/Fail Static 48Hr Acute Daphnia Magna | 48-hour maximum | ≤ 0 pass=0;fail=1 | all year | 010 |
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 96-hour value | ≤ 0 pass=0;fail=1 | all year | 010 |
| Specific conductance | daily maximum | ≤ 7500 umho/cm | all year | 011 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 011 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 011 |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 011 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | 011 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | 011 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | 011 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | 011 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | 011 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | 011 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 011 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 011 |
| Arsenic, total recoverable | daily maximum | ≤ 10 ug/L | all year | 011 |
| Barium, total recoverable | daily maximum | ≤ 2000 ug/L | all year | 011 |
| Iron, dissolved [as Fe] | daily maximum | ≤ 1000 ug/L | all year | 011 |
| Chloride | daily maximum | ≤ 230 mg/L | all year | 011 |
| Bicarbonate as [CaCO3] | daily maximum | report only (mg/L) | all year | 011 |
| Flow | monthly average | report only (MGD) | all year | 011 |
| Flow | monthly average | report only (MGD) | all year | 011 |
| Flow | daily maximum | report only (MGD) | all year | 011 |
| Flow | daily maximum | report only (MGD) | all year | 011 |
| Pass/Fail Static 48Hr Acute Daphnia Magna | 48-hour maximum | ≤ 0 pass=0;fail=1 | all year | 011 |
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 96-hour value | ≤ 0 pass=0;fail=1 | all year | 011 |
| Specific conductance | daily maximum | ≤ 7500 umho/cm | all year | 013 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 013 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 013 |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 013 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | 013 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | 013 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | 013 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | 013 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | 013 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | 013 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 013 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | 013 |
| Arsenic, total recoverable | daily maximum | ≤ 8.4 ug/L | all year | 013 |
| Barium, total recoverable | daily maximum | ≤ 1800 ug/L | all year | 013 |
| Iron, dissolved [as Fe] | daily maximum | ≤ 1000 ug/L | all year | 013 |
| Chloride | daily maximum | ≤ 150 mg/L | all year | 013 |
| Bicarbonate as [CaCO3] | daily maximum | report only (mg/L) | all year | 013 |
| Flow | monthly average | report only (MGD) | all year | 013 |
| Flow | monthly average | report only (MGD) | all year | 013 |
| Flow | daily maximum | report only (MGD) | all year | 013 |
| Flow | daily maximum | report only (MGD) | all year | 013 |
| Pass/Fail Static 48Hr Acute Daphnia Magna | 48-hour maximum | ≤ 0 pass=0;fail=1 | all year | 013 |
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 96-hour value | ≤ 0 pass=0;fail=1 | all year | 013 |
| Specific conductance | daily maximum | report only (umho/cm) | all year | CWDN |
| Specific conductance | daily maximum | report only (umho/cm) | all year | CWDN |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | CWDN |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | CWDN |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | CWDN |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | CWDN |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | CWDN |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | CWDN |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | CWDN |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | CWDN |
| Flow | monthly average | report only (MGD) | all year | CWDN |
| Flow | monthly average | report only (MGD) | all year | CWDN |
| Flow | daily maximum | report only (MGD) | all year | CWDN |
| Flow | daily maximum | report only (MGD) | all year | CWDN |
| Specific conductance | daily maximum | report only (umho/cm) | all year | CWUS |
| Specific conductance | daily maximum | report only (umho/cm) | all year | CWUS |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | CWUS |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | CWUS |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | CWUS |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | CWUS |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | CWUS |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | CWUS |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | CWUS |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | CWUS |
| Flow | monthly average | report only (MGD) | all year | CWUS |
| Flow | monthly average | report only (MGD) | all year | CWUS |
| Flow | daily maximum | report only (MGD) | all year | CWUS |
| Flow | daily maximum | report only (MGD) | all year | CWUS |
| Specific conductance | daily maximum | report only (umho/cm) | all year | DPR1 |
| Specific conductance | daily maximum | report only (umho/cm) | all year | DPR1 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | DPR1 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | DPR1 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | DPR1 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | DPR1 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | DPR1 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | DPR1 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | DPR1 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | DPR1 |
| Specific conductance | daily maximum | report only (umho/cm) | all year | UPR1 |
| Specific conductance | daily maximum | report only (umho/cm) | all year | UPR1 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | UPR1 |
| Calcium, dissolved [as Ca] | daily maximum | report only (mg/L) | all year | UPR1 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | UPR1 |
| Magnesium, dissolved [as Mg] | daily maximum | report only (mg/L) | all year | UPR1 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | UPR1 |
| Sodium, dissolved [as Na] | daily maximum | report only (mg/L) | all year | UPR1 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | UPR1 |
| Sodium adsorption ratio | daily maximum | report only (Ratio) | all year | UPR1 |
Cited limits by parameter: Wyoming's rules and the federal ones.
Same industry: the 209 Oil and Gas Extraction permits in Wyoming.
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