ODOT Office of Aviation

NPDES permit OH0124036 · Minor NON-POTW · effective, expires 2028-12-31 · 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

0values over a limit
0required values missing, on 0 form(s)
1of 11 forms filed late

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

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (28)

OutfallParameterStatisticLimitMonths
001Flow rateMO AVG report only all year
001Flow rateDAILY MX report only all year
001Oxygen demand, chem. [low level] [COD]MO AVG report only all year
001Oxygen demand, chem. [low level] [COD]DAILY MX report only all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Oil and grease, hexane extr methodMO AVG <= 10 mg/L all year
001Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
001Oil and grease, hexane extr methodMO AVG <= 1.1 kg/d all year
001Oil and grease, hexane extr methodDAILY MX <= 1.64 kg/d all year
001TolueneMO AVG <= 5 ug/L all year
001TolueneDAILY MX <= 10 ug/L all year
001TolueneMO AVG <= .00055 kg/d all year
001TolueneDAILY MX <= .0011 kg/d all year
001BenzeneMO AVG <= 5 ug/L all year
001BenzeneDAILY MX <= 10 ug/L all year
001BenzeneMO AVG <= .00055 kg/d all year
001BenzeneDAILY MX <= .0011 kg/d all year
001EthylbenzeneMO AVG <= 5 ug/L all year
001EthylbenzeneDAILY MX <= 10 ug/L all year
001EthylbenzeneMO AVG <= .00055 kg/d all year
001EthylbenzeneDAILY MX <= .0011 kg/d all year
001RainfallMO AVG report only all year
001RainfallDAILY MX report only all year
001Xylene [mix of m+o+p]MO AVG <= 5 ug/L all year
001Xylene [mix of m+o+p]DAILY MX <= 10 ug/L all year
001Xylene [mix of m+o+p]MO AVG <= .00055 kg/d all year
001Xylene [mix of m+o+p]DAILY MX <= .0011 kg/d 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