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Wesco Operating Inc Oil and Gas Operation

Crude Petroleum And Natural Gas, Fremont County, Wyoming. NPDES permit WY0000221 expired Oct 31, 2022; its limits still apply. No reports in EPA's file for the last 12 months. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A
Last report on file
None in EPA's file for the last 12 months; that may be EPA's gap, not the facility's

Limits in force (10)

ParameterStatisticLimitMonths
Specific conductancedaily maximumreport only (umho/cm)all year
Sulfate [as S]daily maximumreport only (mg/L)all year
pHminimumreport only (SU)all year
pHmaximumreport only (SU)all year
Oil & Greasedaily maximumreport only (mg/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Radium 226, totaldaily maximumreport only (pCi/L)all year
Sulfide-hydrogen sulfide [undissociated]daily maximumreport only (mg/L)all year
Solids, total dissolveddaily maximumreport only (mg/L)all year
Flow, totaldaily maximumreport only (MGD)all year

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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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WY0000221 · MCP: https://passage-data.com/mcp