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Silver Eagle Refining, Inc.

Petroleum Refining, Unknown, Wyoming. NPDES permit WYS000014 expired Apr 30, 2026; its limits still apply. Last 12 months: over a limit 2 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Z1 quarterly (8 values), form Z2 quarterly (32 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 8 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimit
December 2025pH, instantaneous minimum6.1 SU≥ 6.5 SU
March 2026pH, instantaneous minimum6.4 SU≥ 6.5 SU

Limits in force (40)

ParameterStatisticLimitMonths
Temperature, water deg. centigradeinstantaneous maximum≤ 30 deg Call year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily maximum≤ 8.7 lb/dall year
BOD, 5-day, 20 deg. Cmonthly average≤ 4.79 lb/dall year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous maximum≤ 9 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendeddaily maximum≤ 6.09 lb/dall year
Solids, total suspendedmonthly average≤ 3.92 lb/dall year
Carbon, tot organic [TOC]daily maximum≤ 110 mg/Lall year
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year
Chromium, hexavalent [as Cr]monthly averagereport only (mg/L)all year
Chromium, hexavalent [as Cr]daily maximum≤ .011 lb/dall year
Chromium, hexavalent [as Cr]monthly average≤ .005 lb/dall year
Chromium, total [as Cr]daily maximumreport only (mg/L)all year
Chromium, total [as Cr]monthly averagereport only (mg/L)all year
Chromium, total [as Cr]daily maximum≤ .109 lb/dall year
Chromium, total [as Cr]monthly average≤ .039 lb/dall year
Phenolic compounds, totaldaily maximumreport only (mg/L)all year
Phenolic compounds, totalmonthly averagereport only (mg/L)all year
Phenolic compounds, totaldaily maximum≤ .063 lb/dall year
Phenolic compounds, totalmonthly average≤ .03 lb/dall year
Solids, total dissolveddaily maximum≤ 1 ton/dall year
Flowdaily maximumreport only (MGD)all year
Flowmonthly averagereport only (MGD)all year
Flowmonthly averagereport only (MGD)all year
Flowdaily maximumreport only (MGD)all year
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year
Chemical Oxygen Demand [COD]daily maximum≤ 65.3 lb/dall year
Chemical Oxygen Demand [COD]monthly average≤ 32.6 lb/dall year
Produced water, oil and greasedaily maximum≤ 10 mg/Lall year
Produced water, oil and greasedaily maximumreport only (mg/L)all year
Produced water, oil and greasemonthly averagereport only (mg/L)all year
Produced water, oil and greasedaily maximum≤ 2.83 lb/dall year
Produced water, oil and greasemonthly average≤ 1.46 lb/dall year

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/WYS000014 · MCP: https://passage-data.com/mcp