Mayes Co RWD #9

NPDES permit OK0046086 · Minor NON-POTW · effective, expires 2030-04-30 · 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
0required values missing, on 0 form(s)
1of 10 forms filed late

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

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 (18)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 15 mg/L all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Solids, total suspendedMO AVG <= 5.63 lb/d all year
001Iron, dissolved [as Fe]MO AVG <= 1 mg/L all year
001Iron, dissolved [as Fe]DAILY MX <= 2 mg/L all year
001Iron, dissolved [as Fe]MO AVG <= .38 lb/d all year
001Manganese, dissolved [as Mn]MO AVG <= 1 mg/L all year
001Manganese, dissolved [as Mn]DAILY MX <= 2 mg/L all year
001Manganese, dissolved [as Mn]MO AVG <= .38 lb/d all year
001Aluminum, dissolved [as Al]MO AVG <= 1 mg/L all year
001Aluminum, dissolved [as Al]DAILY MX <= 2 mg/L all year
001Aluminum, dissolved [as Al]MO AVG <= .38 lb/d 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
001Chlorine, total residualMO AVG report only all year
001Chlorine, total residualDAILY 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