Department of the Navy, Washington Navy Yard

NPDES permit MD0003051 · Minor FEDERAL · effective, expires 2027-06-30 · 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 40 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among MD permits in EPA's filings — check your permit).

Limits in force (51)

OutfallParameterStatisticLimitMonths
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 8.5 SU all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedDAILY MX report only all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Copper, total [as Cu]MO AVG report only all year
002Copper, total [as Cu]DAILY MX report only all year
002Silver, total [as Ag]MO AVG report only all year
002Silver, total [as Ag]DAILY MX report only all year
002Temp. diff. between up/down stream deg. FDAILY MX <= 0 deg F all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Chlorine, total residualMO AVG <= .1 mg/L all year
002Chlorine, total residualDAILY MX <= .1 mg/L all year
003pHMINIMUM >= 6.5 SU all year
003pHMAXIMUM <= 8.5 SU all year
003Solids, total suspendedMX MO AV <= 30 mg/L all year
003Solids, total suspendedMX DA AV <= 60 mg/L all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Copper, total [as Cu]MO AVG report only all year
003Copper, total [as Cu]DAILY MX report only all year
003Silver, total [as Ag]MO AVG report only all year
003Silver, total [as Ag]DAILY MX report only all year
003Temp. diff. between up/down stream deg. FDAILY MX <= 0 deg F 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
003Chlorine, total residualMO AVG <= .1 mg/L all year
003Chlorine, total residualDAILY MX <= .1 mg/L all year
004pHMINIMUM >= 6.5 SU all year
004pHMAXIMUM <= 8.5 SU all year
004Solids, total suspendedMO AVG <= 30 mg/L all year
004Solids, total suspendedDAILY MX <= 60 mg/L all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Temp. diff. between up/down stream deg. FDAILY MX <= 0 deg F all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Chlorine, total residualMO AVG report only all year
004Chlorine, total residualDAILY MX report only all year
011pHMINIMUM >= 6.5 SU all year
011pHMAXIMUM <= 8.5 SU all year
011Solids, total suspendedMO AVG report only all year
011Solids, total suspendedDAILY MX report only all year
011Oil & GreaseDAILY MX <= 15 mg/L all year
011Copper, total [as Cu]MO AVG report only all year
011Copper, total [as Cu]DAILY MX report only all year
011Silver, total [as Ag]MO AVG report only all year
011Silver, total [as Ag]DAILY MX report only all year
011Flow, in conduit or thru treatment plantMO AVG report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
011Chlorine, total residualMO AVG <= .1 mg/L all year
011Chlorine, total residualDAILY MX <= .1 mg/L 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