Bentonite Performance Minerals, LLC

NPDES permit WY0096563 · Minor NON-POTW · administratively continued, expires 2026-07-24 · 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.

This permit expired on 2026-07-24 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
0of 60 forms filed late

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

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 (22)

OutfallParameterStatisticLimitMonths
001Specific conductanceDAILY MX <= 7500 umho/cm all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total dissolvedDAILY MX <= 5000 mg/L all year
002Specific conductanceDAILY MX <= 7500 umho/cm all year
002pHINST MIN >= 6.5 SU all year
002pHINST MAX <= 9 SU all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total dissolvedDAILY MX <= 5000 mg/L all year
003Specific conductanceDAILY MX <= 7500 umho/cm all year
003pHINST MIN >= 6.5 SU all year
003pHINST MAX <= 9 SU all year
003Solids, total suspendedDAILY MX report only all year
003Solids, total dissolvedDAILY MX <= 5000 mg/L all year
004Specific conductanceDAILY MX <= 7500 umho/cm all year
004pHINST MIN >= 6.5 SU all year
004pHINST MAX <= 9 SU all year
004Solids, total suspendedDAILY MX report only all year
004Solids, total dissolvedDAILY MX <= 5000 mg/L all year
DMP1Solids, total suspendedDAILY MX report only all year
UMP1Solids, total suspendedDAILY 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