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Simon Oil

Industrial or other facility, (Unknown City), Wyoming. NPDES permit WY0095877, in force until Apr 30, 2031. Last 12 months: over a limit 2 times (last December 2025), 21 of 21 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form BS twice a year, outfall 001 form MS twice a year, outfall 001 form SS twice a year, outfall DMP1 form DM twice a year
Last report on file
June 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 13 of 26 reports late

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

Period endingParameterReportedLimitOver by
October 2025Produced water, oil and grease, daily maximum15 mg/L≤ 10 mg/L50%
December 2025Produced water, oil and grease, daily maximum24 mg/L≤ 10 mg/L140%

Limits in force (14)

ParameterStatisticLimitMonthsOutfall
Specific conductancedaily maximum≤ 7500 umho/cmall year001
pHinstantaneous minimum≥ 6.5 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Sulfide, total [as S]daily maximumreport only (mg/L)all year001
Radium 226, totaldaily maximum≤ 60 pCi/Lall year001
Chloridedaily maximum≤ 2000 mg/Lall year001
Durationmonthly totalreport only (d/mo)all year001
Flowmonthly averagereport only (MGD)all year001
Flowdaily maximumreport only (MGD)all year001
Sulfatedaily maximum≤ 3000 mg/Lall year001
Produced water, oil and greasedaily maximum≤ 10 mg/Lall year001
pHinstantaneous maximumreport only (SU)all yearDMP1
pHinstantaneous minimumreport only (SU)all yearDMP1
Sulfide, total [as S]daily maximumreport only (mg/L)all yearDMP1

Cited limits by parameter: Wyoming's rules and the federal ones.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WY0095877 · MCP: https://passage-data.com/mcp