Metropolitan Washington Airports Authority (MWAA)

NPDES permit VA0089541 · Minor NON-POTW · effective, expires 2030-07-31 · 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)
0of 73 forms filed late

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

Reporting

Reports are due about 10 days after each monitoring period ends (the most common figure among VA permits in EPA's filings — check your permit).

Limits in force (124)

OutfallParameterStatisticLimitMonths
020pHMINIMUM >= 6 SU all year
020pHMAXIMUM <= 9 SU all year
020Solids, total suspendedMO AVG report only all year
020Solids, total suspendedDAILY MX report only all year
020Petrol hydrocarbons, total recoverableMO AVG <= 15 mg/L all year
020Petrol hydrocarbons, total recoverableDAILY MX <= 30 mg/L all year
020Flow, in conduit or thru treatment plantMO AVG report only all year
020Flow, in conduit or thru treatment plantDAILY MX report only all year
021pHMINIMUM >= 6 SU all year
021pHMAXIMUM <= 9 SU all year
021Solids, total suspendedMO AVG report only all year
021Solids, total suspendedDAILY MX report only all year
021Petrol hydrocarbons, total recoverableMO AVG <= 15 mg/L all year
021Petrol hydrocarbons, total recoverableDAILY MX <= 30 mg/L all year
021Flow, in conduit or thru treatment plantMO AVG report only all year
021Flow, in conduit or thru treatment plantDAILY MX report only all year
025Specific conductanceMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
025Specific conductanceDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
025Oxygen, dissolved [DO]MO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
025Oxygen, dissolved [DO]DAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
025BOD, 5-day, 20 deg. CMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
025BOD, 5-day, 20 deg. CDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
025Oxygen demand, chem. [low level] [COD]MO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
025Oxygen demand, chem. [low level] [COD]DAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
025pHMINIMUM report only all year
025pHMAXIMUM report only all year
025Solids, total suspendedMO AVG report only all year
025Solids, total suspendedDAILY MX report only all year
025Petrol hydrocarbons, total recoverableMO AVG report only all year
025Petrol hydrocarbons, total recoverableDAILY MX report only all year
025Flow, in conduit or thru treatment plantMO AVG report only all year
025Flow, in conduit or thru treatment plantDAILY MX report only all year
0251,2-PropanediolMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
0251,2-PropanediolDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
551Specific conductanceMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
551Specific conductanceDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
551Oxygen, dissolved [DO]MO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
551Oxygen, dissolved [DO]DAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
551BOD, 5-day, 20 deg. CMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
551BOD, 5-day, 20 deg. CDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
551Oxygen demand, chem. [low level] [COD]MO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
551Oxygen demand, chem. [low level] [COD]DAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
551pHMINIMUM report only all year
551pHMAXIMUM report only all year
551Solids, total suspendedMO AVG report only all year
551Solids, total suspendedDAILY MX report only all year
551Petrol hydrocarbons, total recoverableMO AVG report only all year
551Petrol hydrocarbons, total recoverableDAILY MX report only all year
551Flow, in conduit or thru treatment plantMO AVG report only all year
551Flow, in conduit or thru treatment plantDAILY MX report only all year
5511,2-PropanediolMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
5511,2-PropanediolDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
552Specific conductanceMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
552Specific conductanceDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
552Oxygen, dissolved [DO]MO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
552Oxygen, dissolved [DO]DAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
552BOD, 5-day, 20 deg. CMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
552BOD, 5-day, 20 deg. CDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
552Oxygen demand, chem. [low level] [COD]MO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
552Oxygen demand, chem. [low level] [COD]DAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
552pHMINIMUM report only all year
552pHMAXIMUM report only all year
552Solids, total suspendedMO AVG report only all year
552Solids, total suspendedDAILY MX report only all year
552Petrol hydrocarbons, total recoverableMO AVG report only all year
552Petrol hydrocarbons, total recoverableDAILY MX report only all year
552Flow, in conduit or thru treatment plantMO AVG report only all year
552Flow, in conduit or thru treatment plantDAILY MX report only all year
5521,2-PropanediolMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
5521,2-PropanediolDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
553Specific conductanceMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
553Specific conductanceDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
553Oxygen, dissolved [DO]MO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
553Oxygen, dissolved [DO]DAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
553BOD, 5-day, 20 deg. CMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
553BOD, 5-day, 20 deg. CDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
553Oxygen demand, chem. [low level] [COD]MO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
553Oxygen demand, chem. [low level] [COD]DAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
553pHMINIMUM report only all year
553pHMAXIMUM report only all year
553Solids, total suspendedMO AVG report only all year
553Solids, total suspendedDAILY MX report only all year
553Petrol hydrocarbons, total recoverableMO AVG report only all year
553Petrol hydrocarbons, total recoverableDAILY MX report only all year
553Flow, in conduit or thru treatment plantMO AVG report only all year
553Flow, in conduit or thru treatment plantDAILY MX report only all year
5531,2-PropanediolMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
5531,2-PropanediolDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
554Specific conductanceMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
554Specific conductanceDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
554Oxygen, dissolved [DO]MO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
554Oxygen, dissolved [DO]DAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
554BOD, 5-day, 20 deg. CMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
554BOD, 5-day, 20 deg. CDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
554Oxygen demand, chem. [low level] [COD]MO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
554Oxygen demand, chem. [low level] [COD]DAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
554pHMINIMUM report only all year
554pHMAXIMUM report only all year
554Solids, total suspendedMO AVG report only all year
554Solids, total suspendedDAILY MX report only all year
554Petrol hydrocarbons, total recoverableMO AVG report only all year
554Petrol hydrocarbons, total recoverableDAILY MX report only all year
554Flow, in conduit or thru treatment plantMO AVG report only all year
554Flow, in conduit or thru treatment plantDAILY MX report only all year
5541,2-PropanediolMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
5541,2-PropanediolDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
555Specific conductanceMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
555Specific conductanceDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
555Oxygen, dissolved [DO]MO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
555Oxygen, dissolved [DO]DAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
555BOD, 5-day, 20 deg. CMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
555BOD, 5-day, 20 deg. CDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
555Oxygen demand, chem. [low level] [COD]MO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
555Oxygen demand, chem. [low level] [COD]DAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
555pHMINIMUM report only all year
555pHMAXIMUM report only all year
555Solids, total suspendedMO AVG report only all year
555Solids, total suspendedDAILY MX report only all year
555Petrol hydrocarbons, total recoverableMO AVG <= 15 mg/L all year
555Petrol hydrocarbons, total recoverableDAILY MX <= 30 mg/L all year
555Flow, in conduit or thru treatment plantMO AVG report only all year
555Flow, in conduit or thru treatment plantDAILY MX report only all year
5551,2-PropanediolMO AVG report only Jan, Feb, Mar, Apr, Oct, Nov, Dec
5551,2-PropanediolDAILY MX report only Jan, Feb, Mar, Apr, Oct, Nov, Dec

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