Black Bear Oil Corporation

NPDES permit WY0032255 · Minor NON-POTW · expired 2022-10-31 · EPA's file as of 2026-09-26

Keep this permit as a site — opens New site at EPA's facility point (42.9654, -104.73395); you set the radius.

These are the last limits EPA's file holds for this permit, from an earlier version of it (version 0 in EPA's file): its current version carries none yet. Read your permit: a renewal can change them.

EPA's record, 2025-09-01 to 2026-08-31

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

• Outfall 001, form OB (Oil Treater, Bi-Monthly): every 6 month(s), 4 values
• Outfall 001, form OM (Oil Treater, Monthly): every 6 month(s), 4 values
• Outfall DMP1, form DM (OT discharge monitoring point): every 6 month(s), 6 values
• Outfall 001, form OS (Oil Treater, Semi-Annual): files for periods ending in Jun, Dec

How strict are these limits?

Each concentration limit against the same limit in comparable permits. Where it appears more than once, its strictest value.

• Chloride, daily maximum 2000 mg/L — stricter than 0% of 228 other minor industrial and other permits in Wyoming; 69% have the same limit
• Radium 226, total, daily maximum 60 pCi/L — stricter than 0% of 140 other minor industrial and other permits in Wyoming; 72% have the same limit
• pH, instantaneous minimum at least 6.5 SU — stricter than 0% of 302 other minor industrial and other permits in Wyoming; 99% have the same limit
• pH, instantaneous maximum 9 SU — stricter than 0% of 303 other minor industrial and other permits in Wyoming; 99% have the same limit
• Sulfate, daily maximum 3000 mg/L — stricter than 0% of 111 other minor industrial and other permits in Wyoming; 99% have the same limit
• Specific conductance, daily maximum 7500 umho/cm — stricter than 0% of 230 other minor industrial and other permits in Wyoming; 100% have the same limit
• Produced water, oil and grease, daily maximum 10 mg/L — stricter than 0% of 245 other minor industrial and other permits in Wyoming; 100% have the same limit

Limits in force (20)

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states