WY Basin Operating LLC

NPDES permit WY0096776 · Minor NON-POTW · effective, expires 2026-11-30 · 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

0values over a limit
0required values missing, on 0 form(s)
36of 64 forms filed late

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

Reporting

Reports are due about 45 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (84)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitINST MAX report only all year
001Temperature, water deg. fahrenheitINST MAX report only all year
001Specific conductanceDAILY MX report only all year
001Specific conductanceDAILY MX report only all year
001pHINST MAX <= 9 SU all year
001pHINST MIN >= 6.5 SU all year
001Calcium, dissolved [as Ca]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
001Magnesium, dissolved [as Mg]DAILY MX report only all year
001Sodium, dissolved [as Na]DAILY MX report only all year
001Sodium, dissolved [as Na]DAILY MX report only all year
001Sodium adsorption ratioDAILY MX report only all year
001Sodium adsorption ratioDAILY MX report only all year
001FluorideDAILY MX <= 2000 ug/L all year
001Iron, dissolved [as Fe]DAILY MX <= 300 ug/L all year
001Selenium, total [as Se]DAILY MX <= 5 ug/L all year
001Radium 226 + radium 228, totalDAILY MX <= 5 pCi/L all year
001ChlorideDAILY MX <= 230 mg/L all year
001Bicarbonate as [CaCO3]DAILY MX report only all year
001Solids, total dissolved [TDS]DAILY MX <= 500 mg/L all year
001Solids, total dissolved [TDS]DAILY MX <= 500 mg/L all year
001FlowINST MAX report only all year
001FlowINST MAX report only all year
001SulfateDAILY MX <= 3000 mg/L all year
002Temperature, water deg. fahrenheitINST MAX report only all year
002Temperature, water deg. fahrenheitINST MAX report only all year
002Specific conductanceDAILY MX report only all year
002Specific conductanceDAILY MX report only all year
002pHINST MAX <= 9 SU all year
002pHINST MIN >= 6.5 SU all year
002Calcium, dissolved [as Ca]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
002Magnesium, dissolved [as Mg]DAILY MX report only all year
002Sodium, dissolved [as Na]DAILY MX report only all year
002Sodium, dissolved [as Na]DAILY MX report only all year
002Sodium adsorption ratioDAILY MX report only all year
002Sodium adsorption ratioDAILY MX report only all year
002FluorideDAILY MX <= 2000 ug/L all year
002Iron, dissolved [as Fe]DAILY MX <= 300 ug/L all year
002Selenium, total [as Se]DAILY MX <= 5 ug/L all year
002Radium 226 + radium 228, totalDAILY MX <= 5 pCi/L all year
002ChlorideDAILY MX <= 230 mg/L all year
002Bicarbonate as [CaCO3]DAILY MX report only all year
002Solids, total dissolved [TDS]DAILY MX <= 500 mg/L all year
002Solids, total dissolved [TDS]DAILY MX <= 500 mg/L all year
002FlowINST MAX report only all year
002FlowINST MAX report only all year
002SulfateDAILY MX <= 3000 mg/L all year
DLSRSpecific conductanceDAILY MX report only all year
DLSRSpecific conductanceDAILY MX report only all year
DLSRCalcium, dissolved [as Ca]DAILY MX report only all year
DLSRCalcium, dissolved [as Ca]DAILY MX report only all year
DLSRMagnesium, dissolved [as Mg]DAILY MX report only all year
DLSRMagnesium, dissolved [as Mg]DAILY MX report only all year
DLSRSodium, dissolved [as Na]DAILY MX report only all year
DLSRSodium, dissolved [as Na]DAILY MX report only all year
DLSRSodium adsorption ratioDAILY MX report only all year
DLSRSodium adsorption ratioDAILY MX report only all year
TRIBSpecific conductanceDAILY MX report only all year
TRIBSpecific conductanceDAILY MX report only all year
TRIBCalcium, dissolved [as Ca]DAILY MX report only all year
TRIBCalcium, dissolved [as Ca]DAILY MX report only all year
TRIBMagnesium, dissolved [as Mg]DAILY MX report only all year
TRIBMagnesium, dissolved [as Mg]DAILY MX report only all year
TRIBSodium, dissolved [as Na]DAILY MX report only all year
TRIBSodium, dissolved [as Na]DAILY MX report only all year
TRIBSodium adsorption ratioDAILY MX report only all year
TRIBSodium adsorption ratioDAILY MX report only all year
TRIBFlowDAILY MX report only all year
TRIBFlowDAILY MX report only all year
TRIBFlowMO AVG report only all year
TRIBFlowMO AVG report only all year
ULSRSpecific conductanceDAILY MX report only all year
ULSRSpecific conductanceDAILY MX report only all year
ULSRCalcium, dissolved [as Ca]DAILY MX report only all year
ULSRCalcium, dissolved [as Ca]DAILY MX report only all year
ULSRMagnesium, dissolved [as Mg]DAILY MX report only all year
ULSRMagnesium, dissolved [as Mg]DAILY MX report only all year
ULSRSodium, dissolved [as Na]DAILY MX report only all year
ULSRSodium, dissolved [as Na]DAILY MX report only all year
ULSRSodium adsorption ratioDAILY MX report only all year
ULSRSodium adsorption ratioDAILY 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