MARYLAND AVIATION ADMINSTRATION

NPDES permit MD0063371 · Minor NON-POTW · effective, expires 2030-05-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

EPA's record, 2025-09-01 to 2026-08-31

1values over a limit
0required values missing, on 0 form(s)
0of 48 forms filed late

Last period with anything received: 2026-06-30. Most often over: Glycol, total (1).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (102)

OutfallParameterStatisticLimitMonths
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Glycol, totalMX MO AV <= 30 % all year
003Glycol, totalMX MO AV <= 30 % all year
003Glycol, totalDAILY MX report only all year
003Glycol, totalDAILY MX report only all year
003Glycol, totalMO AVG report only all year
003Glycol, totalMO AVG report only all year
003Glycol, totalMO AVG report only all year
003Glycol, totalMO AVG report only all year
003Glycol, totalDAILY MX report only all year
003Glycol, totalDAILY MX report only all year
003Glycol, totalDAILY MX report only all year
003Glycol, totalDAILY MX report only all year
003Flow, in conduit or thru treatment plantMO AVG report only 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
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Chemical Oxygen Demand [COD]MO AVG report only all year
003Chemical Oxygen Demand [COD]MO AVG report only all year
003Chemical Oxygen Demand [COD]DAILY MX report only all year
003Chemical Oxygen Demand [COD]DAILY MX report only all year
006Oil & GreaseDAILY MX <= 15 mg/L all year
006Oil & GreaseDAILY MX <= 15 mg/L all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
007Oil & GreaseDAILY MX <= 15 mg/L all year
007Oil & GreaseDAILY MX <= 15 mg/L all year
007Glycol, totalMX MO AV <= 30 % all year
007Glycol, totalMX MO AV <= 30 % all year
007Glycol, totalDAILY MX report only all year
007Glycol, totalDAILY MX report only all year
007Glycol, totalMO AVG report only all year
007Glycol, totalMO AVG report only all year
007Glycol, totalMO AVG report only all year
007Glycol, totalMO AVG report only all year
007Glycol, totalDAILY MX report only all year
007Glycol, totalDAILY MX report only all year
007Glycol, totalDAILY MX report only all year
007Glycol, totalDAILY MX report only all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Chemical Oxygen Demand [COD]MO AVG report only all year
007Chemical Oxygen Demand [COD]MO AVG report only all year
007Chemical Oxygen Demand [COD]DAILY MX report only all year
007Chemical Oxygen Demand [COD]DAILY MX report only all year
008Oil & GreaseDAILY MX <= 15 mg/L all year
008Oil & GreaseDAILY MX <= 15 mg/L all year
008Glycol, totalMX MO AV <= 30 % all year
008Glycol, totalMX MO AV <= 30 % all year
008Glycol, totalDAILY MX report only all year
008Glycol, totalDAILY MX report only all year
008Glycol, totalMO AVG report only all year
008Glycol, totalMO AVG report only all year
008Glycol, totalMO AVG report only all year
008Glycol, totalMO AVG report only all year
008Glycol, totalDAILY MX report only all year
008Glycol, totalDAILY MX report only all year
008Glycol, totalDAILY MX report only all year
008Glycol, totalDAILY MX report only all year
008Flow, in conduit or thru treatment plantMO AVG report only all year
008Flow, in conduit or thru treatment plantMO AVG report only all year
008Flow, in conduit or thru treatment plantDAILY MX report only all year
008Flow, in conduit or thru treatment plantDAILY MX report only all year
008Chemical Oxygen Demand [COD]MO AVG report only all year
008Chemical Oxygen Demand [COD]MO AVG report only all year
008Chemical Oxygen Demand [COD]DAILY MX report only all year
008Chemical Oxygen Demand [COD]DAILY MX report only all year
301Oil & GreaseDAILY MX <= 15 mg/L all year
301Oil & GreaseDAILY MX <= 15 mg/L all year
301Flow, in conduit or thru treatment plantQRTR AVG report only all year
301Flow, in conduit or thru treatment plantQRTR AVG report only all year
301Flow, in conduit or thru treatment plantDAILY MX report only all year
301Flow, in conduit or thru treatment plantDAILY MX report only all year
302Oil & GreaseDAILY MX <= 15 mg/L all year
302Oil & GreaseDAILY MX <= 15 mg/L all year
302Flow, in conduit or thru treatment plantQRTR AVG report only all year
302Flow, in conduit or thru treatment plantQRTR AVG report only all year
302Flow, in conduit or thru treatment plantDAILY MX report only all year
302Flow, in conduit or thru treatment plantDAILY MX report only all year
303Oil & GreaseDAILY MX <= 15 mg/L all year
303Oil & GreaseDAILY MX <= 15 mg/L all year
303Flow, in conduit or thru treatment plantQRTR AVG report only all year
303Flow, in conduit or thru treatment plantQRTR AVG report only all year
303Flow, in conduit or thru treatment plantDAILY MX report only all year
303Flow, in conduit or thru treatment plantDAILY MX report only all year
304Oil & GreaseDAILY MX <= 15 mg/L all year
304Oil & GreaseDAILY MX <= 15 mg/L all year
304Flow, in conduit or thru treatment plantQRTR AVG report only all year
304Flow, in conduit or thru treatment plantQRTR AVG report only all year
304Flow, in conduit or thru treatment plantDAILY MX report only all year
304Flow, in conduit or thru treatment plantDAILY MX report only all year
307Oil & GreaseDAILY MX <= 15 mg/L all year
307Oil & GreaseDAILY MX <= 15 mg/L all year
307Flow, in conduit or thru treatment plantQRTR AVG report only all year
307Flow, in conduit or thru treatment plantQRTR AVG report only all year
307Flow, in conduit or thru treatment plantDAILY MX report only all year
307Flow, 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