Granite Creek Operating LLC

NPDES permit WY0023248 · Minor NON-POTW · effective, expires 2027-06-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

0values over a limit
0required values missing, on 0 form(s)
0of 1 forms filed late

Last period with anything received: 2025-12-31.

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
001Specific conductanceANNL AVG report only all year
001Specific conductanceDAILY MX <= 7500 umho/cm all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 9 SU all year
001Sulfide, total [as S]ANNL AVG report only all year
001Sulfide, total [as S]DAILY MX report only all year
001Sulfate, total [as SO4]ANNL AVG report only all year
001Sulfate, total [as SO4]DAILY MX <= 3000 mg/L all year
001Radium 226 + radium 228, totalANNL AVG report only all year
001Radium 226 + radium 228, totalDAILY MX <= 5 pCi/L all year
001ChlorideANNL AVG report only all year
001ChlorideDAILY MX <= 860 mg/L all year
001FlowMO AVG report only all year
001FlowDAILY MX report only all year
001FlowANNL AVG report only all year
001Produced water, oil and greaseANNL AVG report only all year
001Produced water, oil and greaseDAILY MX <= 10 mg/L 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