Department of Army

NPDES permit MD0021229 · Major 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

10values over a limit
33required values missing, on 3 form(s)
7of 34 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, 5-day, 20 deg. C (7), PCB, total, scan effluent (3).

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 (60)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MN WK AV >= 6 mg/L Feb, Mar, Apr, May
001Oxygen, dissolved [DO]INST MIN >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 20 mg/L all year
001BOD, 5-day, 20 deg. CMX WK AV <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 200 lb/d all year
001BOD, 5-day, 20 deg. CMX WK AV <= 300 lb/d all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001Solids, total suspendedMX MO AV <= 20 mg/L all year
001Solids, total suspendedMX WK AV <= 30 mg/L all year
001Solids, total suspendedMX MO AV <= 200 lb/d all year
001Solids, total suspendedMO TOTAL report only all year
001Solids, total suspendedMX WK AV <= 300 lb/d all year
001Solids, total suspendedCUM TOTL <= 109600 lb/yr all year
001Solids, total suspendedANNL TOT report only all year
001Solids, total suspendedANNL TOT report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO TOTAL report only all year
001Nitrogen, total [as N]CUM TOTL <= 14619 lb/yr all year
001Nitrogen, total [as N]ANNL TOT report only all year
001Nitrogen, total [as N]ANNL TOT report only all year
001Nitrogen, organic total [as N]MO AVG report only all year
001Nitrogen, organic total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MX MO AV <= 2.8 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MX MO AV <= 7.6 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MX MO AV <= 28 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MX MO AV <= 76 lb/d Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]MO TOTAL report only all year
001Phosphorus, total [as P]CUM TOTL <= 1096 lb/yr all year
001Phosphorus, total [as P]ANNL TOT report only all year
001Phosphorus, total [as P]ANNL TOT report only all year
001PCB, total, scan effluentMO AVG report only all year
001PCB, total, scan effluentMO TOTAL <= .57 abst=0;prst=1 all year
001BenzidineQRTR AVG report only all year
001ToxapheneQRTR AVG report only Jan, Apr, Jul, Oct
001HexachlorobenzeneQRTR AVG report only Jan, Apr, Jul, Oct
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMAXIMUM <= .1 mg/L all year
001Phosphorus, orthoMO AVG report only all year
001Phosphorus, orthoMO AVG report only all year
001Coliform, fecal generalMD <= 14 MPN/100mL all year
001BOD, 5-day, percent removalMO AVG report only all year
001Solids, suspended percent removalMO AVG report only all year
001Flow, totalTOTAL report only all year
001Flow, totalANNL TOT report only all year
001Flow, totalANNL TOT report only all year
101BOD, 5-day, 20 deg. CMO AVG report only all year
101Solids, total suspendedMO AVG report only all year
TRADSolids, total suspendedMO TOTAL report only all year
TRADSolids, total suspendedMO TOTAL report only all year
TRADNitrogen, total [as N]MO TOTAL report only all year
TRADNitrogen, total [as N]MO TOTAL report only all year
TRADPhosphorus, total [as P]MO TOTAL report only all year
TRADPhosphorus, total [as P]MO TOTAL report only all year
TRADFlowYA 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