Chemtrade Refinery Services Inc.

NPDES permit OK0036439 · Minor NON-POTW · effective, expires 2031-03-31 · 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

2values over a limit
0required values missing, on 0 form(s)
0of 11 forms filed late

Last period with anything received: 2026-07-31. Most often over: pH (1), Sulfate, total [as SO4] (1).

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among OK permits in EPA's filings — check your permit).

Limits in force (14)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Solids, total suspendedDAILY MX <= 39.31 lb/d all year
001Sulfate, total [as SO4]MO AVG <= 736 mg/L all year
001Sulfate, total [as SO4]DAILY MX <= 1012 mg/L all year
001Sulfate, total [as SO4]MO AVG <= 643 lb/d all year
001Sulfate, total [as SO4]DAILY MX <= 884 lb/d all year
001Oxidants, total residualINST MAX <= .099 mg/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

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