Big West Oil LLC

NPDES permit UT0026174 · Minor NON-POTW · effective, expires 2028-04-30 · 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
5required values missing, on 1 form(s)
1of 12 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (25)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigrade30DA AVG report only all year
001Oxygen, dissolved [DO]30DA AVG report only all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG report only all year
001Oil & GreaseDAILY MX <= 10 mg/L all year
001Phosphorus, total [as P]30DA AVG report only all year
001Arsenic, total recoverableANNL MAX report only all year
001Selenium, total recoverableANNL MAX report only all year
001Nickel, total recoverableANNL MAX report only all year
001Silver total recoverableANNL MAX report only all year
001Zinc, total recoverableANNL MAX report only all year
001Cadmium, total recoverableANNL MAX report only all year
001Lead, total recoverableANNL MAX report only all year
001Chromium, total recoverableANNL MAX report only all year
001Copper, total recoverableANNL MAX report only all year
001Molybdenum, total recoverableANNL MAX report only all year
001Phosphate, ortho [as P]30DA AVG report only all year
001Solids, total dissolved [TDS]30DA AVG report only all year
001Mercury, total recoverableANNL MAX report only all year
001Cyanide, total recoverableANNL MAX report only all year
001Flow, totalMX MO AV <= .12 MGD all year
001Flow, totalMX MO AV <= .33 MGD all year
001Flow, totalDAILY MX <= .33 MGD all year
001Flow, totalDAILY MX <= .55 MGD 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