Columbus Mun Airport Authority

NPDES permit OH0124311 · Minor NON-POTW · effective, expires 2028-02-29 · 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

9values over a limit
6required values missing, on 1 form(s)
0of 88 forms filed late

Last period with anything received: 2026-07-31. Most often over: Oxygen, dissolved [DO] (6), Propylene glycol, total (1), BOD, carbonaceous [5 day, 20 C] (1).

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 (103)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN report only all year
001pHDAILY MN report only all year
001pHDAILY MX report only all year
001Oil and grease, hexane extr methodMO AVG report only all year
001Oil and grease, hexane extr methodDAILY MX report only all year
001Propylene glycol, totalMO AVG report only all year
001Propylene glycol, totalDAILY MX report only all year
002Oxygen, dissolved [DO]DAILY MN >= 4 mg/L Jan, Feb, Mar, Apr, Nov, Dec
002Oxygen, dissolved [DO]DAILY MN >= 4 mg/L May, Jun, Jul, Aug, Sep, Oct
002pHDAILY MN >= 6.5 SU May, Jun, Jul, Aug, Sep, Oct
002pHDAILY MN >= 6.5 SU Jan, Feb, Mar, Apr, Nov, Dec
002pHDAILY MX <= 9 SU May, Jun, Jul, Aug, Sep, Oct
002pHDAILY MX <= 9 SU Jan, Feb, Mar, Apr, Nov, Dec
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedDAILY MX report only all year
002Oil and grease, hexane extr methodMO AVG <= 15 mg/L all year
002Oil and grease, hexane extr methodDAILY MX <= 20 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG report only May, Jun, Jul, Aug, Sep, Oct
002Flow, in conduit or thru treatment plantMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
002Flow, in conduit or thru treatment plantDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
002Flow, in conduit or thru treatment plantDAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
002Propylene glycol, totalMO AVG <= 71000 ug/L Jan, Feb, Mar, Apr, Nov, Dec
002Propylene glycol, totalDAILY MX <= 640000 ug/L Jan, Feb, Mar, Apr, Nov, Dec
002Solids, total dissolved- 180 deg. CMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
002Solids, total dissolved- 180 deg. CDAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
002BOD, carbonaceous [5 day, 20 C]MO AVG report only May, Jun, Jul, Aug, Sep, Oct
002BOD, carbonaceous [5 day, 20 C]MO AVG <= 200 mg/L Jan, Feb, Mar, Apr, Nov, Dec
002BOD, carbonaceous [5 day, 20 C]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct
003Oxygen, dissolved [DO]DAILY MN report only all year
003pHDAILY MN report only all year
003pHDAILY MX report only all year
003Oil and grease, hexane extr methodMO AVG report only all year
003Oil and grease, hexane extr methodDAILY MX report only all year
003Propylene glycol, totalMO AVG report only all year
003Propylene glycol, totalDAILY MX report only all year
004pHDAILY MN report only all year
004pHDAILY MX report only all year
004Oil and grease, hexane extr methodMO AVG report only all year
004Oil and grease, hexane extr methodDAILY MX report only all year
006Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Jan, Feb, Mar, Apr, Nov, Dec
006Oxygen, dissolved [DO]DAILY MN >= 5 mg/L May, Jun, Jul, Aug, Sep, Oct
006pHDAILY MN >= 6.5 SU May, Jun, Jul, Aug, Sep, Oct
006pHDAILY MN >= 6.5 SU Jan, Feb, Mar, Apr, Nov, Dec
006pHDAILY MX <= 9 SU May, Jun, Jul, Aug, Sep, Oct
006pHDAILY MX <= 9 SU Jan, Feb, Mar, Apr, Nov, Dec
006Solids, total suspendedMO AVG report only all year
006Solids, total suspendedDAILY MX report only all year
006Oil and grease, hexane extr methodMO AVG <= 15 mg/L all year
006Oil and grease, hexane extr methodDAILY MX <= 20 mg/L all year
006RainfallMO AVG report only all year
006RainfallDAILY MX report only all year
006Flow, in conduit or thru treatment plantMO AVG report only May, Jun, Jul, Aug, Sep, Oct
006Flow, in conduit or thru treatment plantMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
006Flow, in conduit or thru treatment plantDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
006Flow, in conduit or thru treatment plantDAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
006Propylene glycol, totalMO AVG <= 950000 ug/L Jan, Feb, Mar, Apr, Nov, Dec
006Propylene glycol, totalDAILY MX <= 1300000 ug/L Jan, Feb, Mar, Apr, Nov, Dec
006Solids, total dissolved- 180 deg. CMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
006Solids, total dissolved- 180 deg. CDAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
006BOD, carbonaceous [5 day, 20 C]MO AVG report only May, Jun, Jul, Aug, Sep, Oct
006BOD, carbonaceous [5 day, 20 C]MO AVG <= 1300 mg/L Jan, Feb, Mar, Apr, Nov, Dec
006BOD, carbonaceous [5 day, 20 C]DAILY MX report only May, Jun, Jul, Aug, Sep, Oct
007Oxygen, dissolved [DO]DAILY MN report only all year
007pHDAILY MN report only all year
007pHDAILY MX report only all year
007Oil and grease, hexane extr methodMO AVG report only all year
007Oil and grease, hexane extr methodDAILY MX report only all year
007Propylene glycol, totalMO AVG report only all year
007Propylene glycol, totalDAILY MX report only all year
008Oxygen, dissolved [DO]DAILY MN >= 5 mg/L May, Jun, Jul, Aug, Sep, Oct
008Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Jan, Feb, Mar, Apr, Nov, Dec
008pHDAILY MN >= 6.5 SU Jan, Feb, Mar, Apr, Nov, Dec
008pHDAILY MN >= 6.5 SU May, Jun, Jul, Aug, Sep, Oct
008pHDAILY MX <= 9 SU Jan, Feb, Mar, Apr, Nov, Dec
008pHDAILY MX <= 9 SU May, Jun, Jul, Aug, Sep, Oct
008Solids, total suspendedMO AVG report only all year
008Solids, total suspendedDAILY MX report only all year
008Oil and grease, hexane extr methodMO AVG <= 15 mg/L all year
008Oil and grease, hexane extr methodDAILY MX <= 20 mg/L all year
008Flow, in conduit or thru treatment plantMO AVG report only May, Jun, Jul, Aug, Sep, Oct
008Flow, in conduit or thru treatment plantMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
008Flow, in conduit or thru treatment plantDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
008Flow, in conduit or thru treatment plantDAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
008Propylene glycol, totalMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
008Propylene glycol, totalDAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
008Solids, total dissolved- 180 deg. CMO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
008Solids, total dissolved- 180 deg. CDAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
008BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
008BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
601pHDAILY MN report only all year
601pHDAILY MX report only all year
601Oil and grease [soxhlet extr.] tot.MO AVG report only all year
601Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
601TolueneMO AVG report only all year
601TolueneDAILY MX report only all year
601BenzeneMO AVG report only all year
601BenzeneDAILY MX report only all year
601EthylbenzeneMO AVG report only all year
601EthylbenzeneDAILY MX report only all year
601Flow, in conduit or thru treatment plantMO AVG report only all year
601Flow, in conduit or thru treatment plantDAILY MX report only all year
601Xylene [mix of m+o+p]MO AVG report only all year
601Xylene [mix of m+o+p]DAILY 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