DUNDALK MARINE TERMINAL

NPDES permit MD0066818 · Minor NON-POTW · effective, expires 2030-01-31 · 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
21required values missing, on 7 form(s)
0of 55 forms filed late

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

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 (43)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 26 mg/L all year
001Solids, total suspendedDAILY MX <= 52 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Cyanide, total [as CN]MO AVG report only all year
001Hardness, total [as CaCO3]MO AVG report only all year
001Chromium, hexavalent [as Cr]MO AVG <= .05 mg/L all year
001Chromium, hexavalent [as Cr]DAILY MX <= .1 mg/L all year
001Chromium, total [as Cr]MO AVG <= 1.71 mg/L all year
001Chromium, total [as Cr]DAILY MX <= 2.77 mg/L all year
001Copper, dissolved [as Cu]MO AVG report only all year
001Copper, total [as Cu]MO AVG report only all year
001Nickel, dissolved [as Ni]MO AVG report only all year
001Nickel, total [as Ni]MO AVG report only 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
001Cyanide, free availableMO AVG <= .049 mg/L all year
001Cyanide, free availableDAILY MX <= .049 mg/L all year
006Chromium, hexavalent [as Cr]VALUE <= .55 mg/L (alert) all year
006Chromium, hexavalent [as Cr]VALUE <= .55 mg/L (alert) all year
006Chromium, hexavalent [as Cr]VALUE <= .55 mg/L (alert) all year
006Chromium, hexavalent [as Cr]VALUE <= .55 mg/L (alert) all year
006Chromium, total [as Cr]VALUE report only all year
006Chromium, total [as Cr]VALUE report only all year
006Chromium, total [as Cr]VALUE report only all year
006Chromium, total [as Cr]VALUE report only all year
006Flow, in conduit or thru treatment plantVALUE report only all year
006Flow, in conduit or thru treatment plantVALUE report only all year
006Flow, in conduit or thru treatment plantVALUE report only all year
006Flow, in conduit or thru treatment plantVALUE report only all year
013Chromium, hexavalent [as Cr]VALUE <= .55 mg/L (alert) all year
013Chromium, hexavalent [as Cr]VALUE <= .55 mg/L (alert) all year
013Chromium, hexavalent [as Cr]VALUE <= .55 mg/L (alert) all year
013Chromium, hexavalent [as Cr]VALUE <= .55 mg/L (alert) all year
013Chromium, total [as Cr]VALUE report only all year
013Chromium, total [as Cr]VALUE report only all year
013Chromium, total [as Cr]VALUE report only all year
013Chromium, total [as Cr]VALUE report only all year
013Flow, in conduit or thru treatment plantVALUE report only all year
013Flow, in conduit or thru treatment plantVALUE report only all year
013Flow, in conduit or thru treatment plantVALUE report only all year
013Flow, in conduit or thru treatment plantVALUE 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