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Merit Energy Company

Crude Petroleum And Natural Gas, (Unknown City), Wyoming. NPDES permit WY0001899, in force until Jun 30, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form OM twice a year (3 values), outfall 001 form AO yearly, outfall 001 form OB twice a year, outfall 001 form SA yearly, outfall DMPA form DM twice a year
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 26 reports late

Limits in force (14)

ParameterStatisticLimitMonthsOutfall
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
Radium 226, totaldaily maximum≤ 60 pCi/Lall year001
Durationmonthly totalreport only (d/mo)all year001
Flowdaily maximum≤ 2.583 MGDall year001
Flowmonthly averagereport only (MGD)all year001
Produced water, oil and greasedaily maximum≤ 10 mg/Lall year001
Pass/Fail Static 48Hr Acute Ceriodaphnia dubia48-hour maximum≤ 0 pass=0;fail=1all year001
Pass/Fail Static 96 Hr Acute Pimephales Promelas96-hour value≤ 0 pass=0;fail=1all year001
pHinstantaneous maximumreport only (SU)all yearDMPA
pHinstantaneous minimumreport only (SU)all yearDMPA
Sulfide, total [as S]daily maximumreport only (mg/L)all yearDMPA

How strict are these limits?

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

Same industry: the 209 Oil and Gas Extraction permits in Wyoming.

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/WY0001899 · MCP: https://passage-data.com/mcp