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Pronghorn Operating, LLC

Crude Petroleum And Natural Gas, (Unknown City), Wyoming. NPDES permit WY0052817 expired Oct 31, 2026. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 006 form B1 yearly, outfall 010 form B1 yearly, outfall CU10 form CU yearly, outfall CU6 form CU yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 28 reports late

Limits in force (28)

ParameterStatisticLimitMonthsOutfall
Specific conductancedaily maximum≤ 7500 umho/cmall year006
pHinstantaneous minimum≥ 6.5 SUall year006
pHinstantaneous maximum≤ 9 SUall year006
Iron, dissolved [as Fe]daily maximum≤ 1000 ug/Lall year006
Chloridedaily maximum≤ 2000 mg/Lall year006
Solids, total dissolveddaily maximumreport only (mg/L)all year006
Specific conductancedaily maximum≤ 7500 umho/cmall year010
pHinstantaneous minimum≥ 6.5 SUall year010
pHinstantaneous maximum≤ 9 SUall year010
Iron, dissolved [as Fe]daily maximum≤ 1000 ug/Lall year010
Chloridedaily maximum≤ 2000 mg/Lall year010
Solids, total dissolveddaily maximumreport only (mg/L)all year010
Specific conductancedaily maximumreport only (umho/cm)all yearCU10
pHinstantaneous minimumreport only (SU)all yearCU10
pHinstantaneous maximumreport only (SU)all yearCU10
Fluoride, dissolved [as F]daily maximumreport only (ug/L)all yearCU10
Selenium, total [as Se]daily maximumreport only (ug/L)all yearCU10
Chloridedaily maximumreport only (mg/L)all yearCU10
Solids, total dissolveddaily maximumreport only (mg/L)all yearCU10
Sulfatedaily maximumreport only (mg/L)all yearCU10
Specific conductancedaily maximumreport only (umho/cm)all yearCU6
pHinstantaneous minimumreport only (SU)all yearCU6
pHinstantaneous maximumreport only (SU)all yearCU6
Fluoride, dissolved [as F]daily maximumreport only (ug/L)all yearCU6
Selenium, total [as Se]daily maximumreport only (ug/L)all yearCU6
Chloridedaily maximumreport only (mg/L)all yearCU6
Solids, total dissolveddaily maximumreport only (mg/L)all yearCU6
Sulfatedaily maximumreport only (mg/L)all yearCU6

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/WY0052817 · MCP: https://passage-data.com/mcp