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Petroleum Refining, Newcastle, Wyoming. NPDES permit WY0001163, in force until Jul 31, 2029. Last 12 months: over a limit 9 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | E. coli, daily maximum | 1050 MPN/100mL | ≤ 630 MPN/100mL | 67% |
| October 2025 | E. coli, monthly average | 1050 MPN/100mL | ≤ 630 MPN/100mL | 67% |
| May 2026 | E. coli, daily maximum | 488 MPN/100mL | ≤ 410 MPN/100mL | 19% |
| May 2026 | E. coli, monthly average | 488 MPN/100mL | ≤ 126 MPN/100mL | 287% |
| June 2026 | E. coli, monthly average | 387 MPN/100mL | ≤ 126 MPN/100mL | 207% |
| July 2026 | E. coli, daily maximum | > 2420 MPN/100mL | ≤ 410 MPN/100mL | — |
| July 2026 | E. coli, monthly average | > 2420 MPN/100mL | ≤ 126 MPN/100mL | — |
| August 2026 | E. coli, daily maximum | 1300 MPN/100mL | ≤ 410 MPN/100mL | 217% |
| August 2026 | E. coli, monthly average | 1300 MPN/100mL | ≤ 126 MPN/100mL | 932% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 153.2 lb/d | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 275.7 lb/d | all year | 001 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | ≤ 122.5 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 192.1 lb/d | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 83.5 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 183.8 lb/d | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 001 |
| Sulfide, total [as S] | monthly average | report only (mg/L) | all year | 001 |
| Sulfide, total [as S] | daily maximum | report only (mg/L) | all year | 001 |
| Sulfide, total [as S] | monthly average | ≤ .81 lb/d | all year | 001 |
| Sulfide, total [as S] | daily maximum | ≤ 1.81 lb/d | all year | 001 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ 16 ug/L | all year | 001 |
| Chromium, hexavalent [as Cr] | monthly average | ≤ .101 lb/d | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ .23 lb/d | all year | 001 |
| Chromium, total [as Cr] | monthly average | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, total [as Cr] | monthly average | ≤ 1.23 lb/d | all year | 001 |
| Chromium, total [as Cr] | daily maximum | ≤ 3.53 lb/d | all year | 001 |
| Selenium, total [as Se] | daily maximum | ≤ 5 ug/L | all year | 001 |
| Acrolein | daily maximum | report only (ug/L) | all year | 001 |
| Duration | total | report only (d/mo) | all year | 001 |
| E. coli | monthly average | ≤ 126 MPN/100mL | May–Sep | 001 |
| E. coli | monthly average | ≤ 630 MPN/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| E. coli | daily maximum | ≤ 410 MPN/100mL | May–Sep | 001 |
| E. coli | daily maximum | ≤ 630 MPN/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Phenolic compounds, total | monthly average | report only (mg/L) | all year | 001 |
| Phenolic compounds, total | daily maximum | report only (mg/L) | all year | 001 |
| Phenolic compounds, total | monthly average | ≤ 1 lb/d | all year | 001 |
| Phenolic compounds, total | daily maximum | ≤ 2.06 lb/d | all year | 001 |
| Flow | monthly average | report only (MGD) | all year | 001 |
| Flow | daily maximum | report only (MGD) | all year | 001 |
| Chemical Oxygen Demand [COD] | monthly average | report only (mg/L) | all year | 001 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 001 |
| Chemical Oxygen Demand [COD] | monthly average | ≤ 1069.3 lb/d | all year | 001 |
| Chemical Oxygen Demand [COD] | daily maximum | ≤ 2060.6 lb/d | all year | 001 |
| Sulfate | daily maximum | report only (mg/L) | all year | 001 |
| Produced water, oil and grease | monthly average | report only (mg/L) | all year | 001 |
| Produced water, oil and grease | daily maximum | ≤ 10 mg/L | all year | 001 |
| Produced water, oil and grease | monthly average | ≤ 44.6 lb/d | all year | 001 |
| Produced water, oil and grease | daily maximum | ≤ 83.5 lb/d | all year | 001 |
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 48-hour maximum | ≤ 0 pass=0;fail=1 | all year | 001 |
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 96-hour value | ≤ 0 pass=0;fail=1 | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 4.3 lb/d | all year | 002 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 7.86 lb/d | all year | 002 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 3.54 lb/d | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 5.5 lb/d | all year | 002 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 002 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 002 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | all year | 002 |
| Chromium, dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 002 |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ 11 ug/L | all year | 002 |
| Chromium, hexavalent [as Cr] | monthly average | ≤ .0045 lb/d | all year | 002 |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ .01 lb/d | all year | 002 |
| Chromium, total [as Cr] | monthly average | ≤ .04 lb/d | all year | 002 |
| Chromium, total [as Cr] | daily maximum | ≤ .1 lb/d | all year | 002 |
| Selenium, total [as Se] | daily maximum | ≤ 5 ug/L | all year | 002 |
| Acrolein | daily maximum | report only (ug/L) | all year | 002 |
| Duration | total | report only (d/mo) | all year | 002 |
| Phenolic compounds, total | monthly average | ≤ .028 lb/d | all year | 002 |
| Phenolic compounds, total | daily maximum | ≤ .06 lb/d | all year | 002 |
| Flow | monthly average | report only (MGD) | all year | 002 |
| Flow | daily maximum | report only (MGD) | all year | 002 |
| Chemical Oxygen Demand [COD] | monthly average | ≤ 29.5 lb/d | all year | 002 |
| Chemical Oxygen Demand [COD] | daily maximum | ≤ 59 lb/d | all year | 002 |
| Sulfate | daily maximum | report only (mg/L) | all year | 002 |
| Produced water, oil and grease | monthly average | report only (mg/L) | all year | 002 |
| Produced water, oil and grease | daily maximum | ≤ 10 mg/L | all year | 002 |
| Produced water, oil and grease | monthly average | ≤ 1.32 lb/d | all year | 002 |
| Produced water, oil and grease | daily maximum | ≤ 2.6 lb/d | all year | 002 |
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 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 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | SP1 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | SP1 |
| pH | instantaneous minimum | report only (SU) | all year | SP1 |
| pH | instantaneous maximum | report only (SU) | all year | SP1 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | SP1 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | SP1 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | SP1 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | SP1 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | SP1 |
| Sulfide, total [as S] | monthly average | report only (mg/L) | all year | SP1 |
| Sulfide, total [as S] | daily maximum | report only (mg/L) | all year | SP1 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | all year | SP1 |
| Chromium, dissolved [as Cr] | daily maximum | report only (ug/L) | all year | SP1 |
| Chromium, hexavalent [as Cr] | daily maximum | report only (ug/L) | all year | SP1 |
| Chromium, total [as Cr] | monthly average | report only (ug/L) | all year | SP1 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | SP1 |
| Selenium, total [as Se] | daily maximum | report only (ug/L) | all year | SP1 |
| Acrolein | daily maximum | report only (ug/L) | all year | SP1 |
| E. coli | monthly average | report only (MPN/100mL) | May–Sep | SP1 |
| E. coli | monthly average | report only (MPN/100mL) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | SP1 |
| E. coli | daily maximum | report only (MPN/100mL) | May–Sep | SP1 |
| E. coli | daily maximum | report only (MPN/100mL) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | SP1 |
| Phenolic compounds, total | monthly average | report only (mg/L) | all year | SP1 |
| Phenolic compounds, total | daily maximum | report only (mg/L) | all year | SP1 |
| Chemical Oxygen Demand [COD] | monthly average | report only (mg/L) | all year | SP1 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | SP1 |
| Sulfate | daily maximum | report only (mg/L) | all year | SP1 |
| Produced water, oil and grease | monthly average | report only (mg/L) | all year | SP1 |
| Produced water, oil and grease | daily maximum | report only (mg/L) | all year | SP1 |
Cited limits by parameter: Wyoming's rules and the federal ones.
Same industry: the 4 Petroleum Refining and Related Industries permits in Wyoming.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/WY0001163 · MCP: https://passage-data.com/mcp