EJ USA, Inc-Ardmore

NPDES permit OK0044288 · Minor NON-POTW · effective, expires 2029-08-31 · 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

8values over a limit
0required values missing, on 0 form(s)
0of 22 forms filed late

Last period with anything received: 2026-07-31. Most often over: pH (8).

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 (22)

OutfallParameterStatisticLimitMonths
002Temperature, water deg. centigradeMO AVG <= 52 deg C all year
002Temperature, water deg. centigradeWKLY AVG <= 52 deg C all year
002Temperature, water deg. centigradeDAILY MX <= 52 deg C all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedDAILY MX <= 45 mg/L all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedDAILY MX <= 10.1 lb/d all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
003Temperature, water deg. centigradeMO AVG <= 46.5 deg C all year
003Temperature, water deg. centigradeWKLY AVG <= 52 deg C all year
003Temperature, water deg. centigradeDAILY MX <= 52 deg C all year
003pHMINIMUM >= 6.5 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedMO AVG report only all year
003Solids, total suspendedDAILY MX <= 45 mg/L all year
003Solids, total suspendedMO AVG report only all year
003Solids, total suspendedDAILY MX <= 62.3 lb/d all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, 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