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Department of Army

Federal facility (National Security), major discharger, Harford County, Maryland. NPDES permit MD0021229, in force until Jun 30, 2027. Last 12 months: over a limit 9 times (last March 2026), 24 required values missing, 4 of 34 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (38 values), outfall 101 form B monthly (2 values), outfall TRAD form E monthly (7 values), outfall 001 form Z yearly
Renewal application due
Jan 1, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 121 required values missing, 25 of 37 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, maximum weekly average31.78 mg/L≤ 30 mg/L6%
December 2025PCB, total, scan effluent, monthly total1 abst=0;prst=1≤ .57 abst=0;prst=175%
January 2026BOD, 5-day, 20 deg. C, maximum monthly average30.94 mg/L≤ 20 mg/L55%
January 2026BOD, 5-day, 20 deg. C, maximum weekly average32.83 mg/L≤ 30 mg/L9%
February 2026BOD, 5-day, 20 deg. C, maximum monthly average24.97 mg/L≤ 20 mg/L25%
February 2026BOD, 5-day, 20 deg. C, maximum weekly average31.69 mg/L≤ 30 mg/L6%
March 2026BOD, 5-day, 20 deg. C, maximum monthly average21.75 mg/L≤ 20 mg/L9%
March 2026BOD, 5-day, 20 deg. C, maximum weekly average33.21 mg/L≤ 30 mg/L11%
March 2026PCB, total, scan effluent, monthly total1 abst=0;prst=1≤ .57 abst=0;prst=175%

Limits in force (60)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]minimum weekly average≥ 6 mg/LFeb–May001
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 20 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 200 lb/dall year001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 300 lb/dall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 8.5 SUall year001
Solids, total suspendedmaximum monthly average≤ 20 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 30 mg/Lall year001
Solids, total suspendedmaximum monthly average≤ 200 lb/dall year001
Solids, total suspendedmonthly totalreport only (lb/mo)all year001
Solids, total suspendedmaximum weekly average≤ 300 lb/dall year001
Solids, total suspendedcumulative total≤ 109600 lb/yrall year001
Solids, total suspendedannual totalreport only (lb/yr)all year001
Solids, total suspendedannual totalreport only (lb/yr)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly totalreport only (lb/mo)all year001
Nitrogen, total [as N]cumulative total≤ 14619 lb/yrall year001
Nitrogen, total [as N]annual totalreport only (lb/yr)all year001
Nitrogen, total [as N]annual totalreport only (lb/yr)all year001
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, organic total [as N]monthly averagereport only (lb/d)all year001
Nitrogen, ammonia total [as N]maximum monthly average≤ 2.8 mg/LMay–Oct001
Nitrogen, ammonia total [as N]maximum monthly average≤ 7.6 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]maximum monthly average≤ 28 lb/dMay–Oct001
Nitrogen, ammonia total [as N]maximum monthly average≤ 76 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (lb/d)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly totalreport only (lb/mo)all year001
Phosphorus, total [as P]cumulative total≤ 1096 lb/yrall year001
Phosphorus, total [as P]annual totalreport only (lb/yr)all year001
Phosphorus, total [as P]annual totalreport only (lb/yr)all year001
PCB, total, scan effluentmonthly averagereport only (mg/L)all year001
PCB, total, scan effluentmonthly total≤ .57 abst=0;prst=1all year001
Benzidinequarterly averagereport only (ug/L)all year001
Toxaphenequarterly averagereport only (ug/L)Jan, Apr, Jul, Oct001
Hexachlorobenzenequarterly averagereport only (ug/L)Jan, Apr, Jul, Oct001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualmaximum≤ .1 mg/Lall year001
Phosphorus, orthomonthly averagereport only (mg/L)all year001
Phosphorus, orthomonthly averagereport only (lb/d)all year001
Coliform, fecal generalmedian≤ 14 MPN/100mLall year001
BOD, 5-day, percent removalmonthly averagereport only (%)all year001
Solids, suspended percent removalmonthly averagereport only (%)all year001
Flow, totaltotalreport only (Mgal/mo)all year001
Flow, totalannual totalreport only (Mgal/yr)all year001
Flow, totalannual totalreport only (Mgal/yr)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year101
Solids, total suspendedmonthly averagereport only (mg/L)all year101
Solids, total suspendedmonthly totalreport only (lb/yr)all yearTRAD
Solids, total suspendedmonthly totalreport only (lb/yr)all yearTRAD
Nitrogen, total [as N]monthly totalreport only (lb/yr)all yearTRAD
Nitrogen, total [as N]monthly totalreport only (lb/yr)all yearTRAD
Phosphorus, total [as P]monthly totalreport only (lb/yr)all yearTRAD
Phosphorus, total [as P]monthly totalreport only (lb/yr)all yearTRAD
Flowyear-to-date totalreport only (Mgal/yr)all yearTRAD

How strict are these limits?

Cited limits by parameter: Maryland's rules and the federal ones.

Same industry: the 8 National Security and International Affairs permits in Maryland.

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Your permit document is the final word. As JSON: /api/v1/permits/MD0021229 · MCP: https://passage-data.com/mcp