Clean Harbors Lone Mountain

NPDES permit OK0044423 · Minor NON-POTW · effective, expires 2029-10-31 · 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.

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

1values over a limit
8required values missing, on 1 form(s)
3of 14 forms filed late

Last period with anything received: 2026-07-31. Most often over: pH (1).

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (35)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 4.9 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 10 mg/L all year
001Sulfate, total [as SO4]MO AVG report only all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Arsenic, total [as As]MO AVG <= 540 ug/L all year
001Arsenic, total [as As]DAILY MX <= 1100 ug/L all year
001Chromium, total [as Cr]MO AVG <= 460 ug/L all year
001Chromium, total [as Cr]DAILY MX <= 1100 ug/L all year
001Zinc, total [as Zn]MO AVG <= 296 ug/L all year
001Zinc, total [as Zn]DAILY MX <= 535 ug/L all year
001Selenium, total [as Se]MO AVG report only all year
001Selenium, total [as Se]DAILY MX report only all year
001PhenolMO AVG <= 29 ug/L all year
001PhenolDAILY MX <= 48 ug/L all year
001NaphthaleneMO AVG <= 22 ug/L all year
001NaphthaleneDAILY MX <= 59 ug/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001TerpineolMO AVG <= 19 ug/L all year
001TerpineolDAILY MX <= 42 ug/L all year
001Solids, total dissolved- 180 deg. CMO AVG report only all year
001Solids, total dissolved- 180 deg. CDAILY MX report only all year
001PyridineMO AVG <= 25 ug/L all year
001PyridineDAILY MX <= 72 ug/L all year
001AnilineMO AVG <= 15 ug/L all year
001AnilineDAILY MX <= 24 ug/L all year
001p-CresolMO AVG <= 15 ug/L all year
001p-CresolDAILY MX <= 24 ug/L all year
001Benzoic acids, totalMO AVG <= 73 ug/L all year
001Benzoic acids, totalDAILY MX <= 119 ug/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