WY Basin Operating LLC

NPDES permit WY0096679 · Minor FEDERAL · administratively continued, expires 2026-03-31 · 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 2026-03-31 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
106required values missing, on 20 form(s)
0of 22 forms filed late

Last period with anything received: 2025-09-30.

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 (82)

OutfallParameterStatisticLimitMonths
001Specific conductanceDAILY MN >= 7500 umho/cm all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 9 SU all year
001Alkalinity, total [as CaCO3]DAILY MX report only all year
001Calcium, dissolved [as Ca]DAILY MX report only all year
001Magnesium, dissolved [as Mg]DAILY MX report only all year
001Sodium, dissolved [as Na]DAILY MX report only all year
001Sodium adsorption ratioDAILY MX report only all year
001Fluoride, dissolved [as F]DAILY MX report only all year
001Barium, total [as Ba]DAILY MX <= 2000 ug/L all year
001Iron, dissolved [as Fe]DAILY MX <= 1000 ug/L all year
001Manganese, dissolved [as Mn]DAILY MX <= 680 ug/L all year
001DurationMO TOTAL report only all year
001DurationMO TOTAL report only all year
001Bicarbonate as [CaCO3]DAILY MX report only all year
001Solids, total dissolvedDAILY MX report only all year
001Solids, total dissolvedDAILY MX report only all year
001Solids, total dissolvedDAILY MX report only all year
001Solids, total dissolvedDAILY MX 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
001Hydrocarbons, total petroleumDAILY MX <= 10 mg/L all year
002Specific conductanceDAILY MN >= 7500 umho/cm all year
002pHINST MIN >= 6.5 SU all year
002pHINST MAX <= 9 SU all year
002Alkalinity, total [as CaCO3]DAILY MX report only all year
002Calcium, dissolved [as Ca]DAILY MX report only all year
002Magnesium, dissolved [as Mg]DAILY MX report only all year
002Sodium, dissolved [as Na]DAILY MX report only all year
002Sodium adsorption ratioDAILY MX report only all year
002Fluoride, dissolved [as F]DAILY MX report only all year
002Barium, total [as Ba]DAILY MX <= 2000 ug/L all year
002Iron, dissolved [as Fe]DAILY MX <= 1000 ug/L all year
002Manganese, dissolved [as Mn]DAILY MX <= 680 ug/L all year
002DurationMO TOTAL report only all year
002DurationMO TOTAL report only all year
002Bicarbonate as [CaCO3]DAILY MX report only all year
002Solids, total dissolvedDAILY MX report only all year
002Solids, total dissolvedDAILY MX report only all year
002Solids, total dissolvedDAILY MX report only all year
002Solids, total dissolvedDAILY MX report only all year
002FlowMO AVG report only all year
002FlowMO AVG report only all year
002FlowDAILY MX report only all year
002FlowDAILY MX report only all year
002SulfateDAILY MX <= 3000 mg/L all year
002Hydrocarbons, total petroleumDAILY MX <= 10 mg/L all year
FM01FlowINST MAX report only Aug, Sep, Oct, Nov
FM01FlowINST MAX report only Aug, Sep, Oct, Nov
SUMFlow, totalMO TOTAL <= .1806 Mgal all year
SUMFlow, totalMO TOTAL <= .1806 Mgal all year
SUMSolids, total dissolvedDAILY MX <= 1 ton/d all year
SUMSolids, total dissolvedDAILY MX <= 1 ton/d all year
TRB1Specific conductanceDAILY MX report only Aug, Sep, Oct, Nov
TRB1Specific conductanceDAILY MX report only Aug, Sep, Oct, Nov
TRB1Alkalinity, total [as CaCO3]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Alkalinity, total [as CaCO3]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Calcium, dissolved [as Ca]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Calcium, dissolved [as Ca]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Magnesium, dissolved [as Mg]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Magnesium, dissolved [as Mg]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Sodium, dissolved [as Na]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Sodium, dissolved [as Na]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Sodium adsorption ratioDAILY MX report only Aug, Sep, Oct, Nov
TRB1Sodium adsorption ratioDAILY MX report only Aug, Sep, Oct, Nov
TRB1FluorideDAILY MX report only (alert) Aug, Sep, Oct, Nov
TRB1FluorideDAILY MX report only (alert) Aug, Sep, Oct, Nov
TRB1Barium, total [as Ba]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Barium, total [as Ba]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Iron, total [as Fe]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Iron, total [as Fe]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Manganese, dissolved [as Mn]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Manganese, dissolved [as Mn]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Bicarbonate as [CaCO3]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Bicarbonate as [CaCO3]DAILY MX report only Aug, Sep, Oct, Nov
TRB1Flow, totalMO TOTAL report only Aug, Sep, Oct, Nov
TRB1Flow, totalMO TOTAL report only Aug, Sep, Oct, Nov
TRB1SulfateDAILY MX report only Aug, Sep, Oct, Nov
TRB1SulfateDAILY MX report only Aug, Sep, Oct, Nov

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