Chevron Environmental Management Company

NPDES permit WY0036412 · Minor NON-POTW · effective, expires 2030-04-30 · 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
11required values missing, on 1 form(s)
1of 10 forms filed late

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

Reporting

Reports are due about 89 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (11)

OutfallParameterStatisticLimitMonths
001Specific conductanceDAILY MX = 7500 umho/cm all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 9 SU all year
001Selenium, total recoverableDAILY MX <= 15 ug/L all year
001BenzeneDAILY MX <= 50 ug/L all year
001BTEXDAILY MX <= 750 ug/L all year
001DurationMO TOTAL report only all year
001FlowMO AVG report only all year
001FlowDAILY MX report only all year
001Hydrocarbons, total petroleumDAILY MX <= 10 mg/L 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