Mid-Con Energy Operating, LLC

NPDES permit WY0097040 · Minor NON-POTW · effective, expires 2031-06-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

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

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Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among WY permits in EPA's filings — check your permit).

Limits in force (17)

OutfallParameterStatisticLimitMonths
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 9 SU all year
001Sulfide, total [as S]DAILY MX report only all year
001Radium 226, totalDAILY MX <= 60 pCi/L all year
001ChlorideDAILY MX <= 2000 mg/L all year
001DurationMO AVG report only all year
001DurationMO AVG report only all year
001FlowMO AVG report only all year
001FlowMO AVG report only all year
001FlowDAILY MX report only all year
001FlowDAILY MX report only all year
001SulfateDAILY MX <= 3000 mg/L all year
001Produced water, oil and greaseDAILY MX <= 10 mg/L all year
DMP1pHINST MIN report only all year
DMP1pHINST MAX report only all year
DMP1Sulfide, total [as S]DAILY MX report only all year
DMP1Radium 226, totalDAILY MX report only all year

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