Naval Support Activity (NSA) Annapolis

NPDES permit MD0023523 · Minor FEDERAL · effective, expires 2028-08-31 · 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
33required values missing, on 8 form(s)
0of 14 forms filed late

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

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 (59)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 5 mg/L all year
001Oxygen, dissolved [DO]MH >= 6 mg/L Feb, Mar, Apr, May
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 <= 50 lb/d all year
001BOD, 5-day, 20 deg. CMX WK AV <= 75 lb/d all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001Solids, total suspendedMX MO AV <= 10 mg/L all year
001Solids, total suspendedMX WK AV <= 15 mg/L all year
001Solids, total suspendedMX MO AV <= 25 lb/d all year
001Solids, total suspendedMO TOTAL report only all year
001Solids, total suspendedMX WK AV <= 37 lb/d all year
001Solids, total suspendedCUM TOTL <= 9132 lb/yr all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]ANNL TOT report only all year
001Nitrogen, total [as N]ANNL TOT report only all year
001Nitrogen, total [as N]CUM TOTL <= 3653 lb/yr 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]MO AVG report only all year
001Nitrogen, ammonia 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 AVG report only all year
001Phosphorus, total [as P]MO TOTAL report only all year
001Phosphorus, total [as P]ANNL TOT report only all year
001Phosphorus, total [as P]ANNL TOT report only all year
001Phosphorus, total [as P]CUM TOTL <= 274 lb/yr 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
001Chlorine, total residualMAXIMUM <= .1 mg/L all year
001Phosphorous, in total orthophosphateMO AVG report only all year
001Phosphorous, in total orthophosphateMO AVG report only all year
001Coliform, fecal generalMO MED <= 14 MPN/100mL all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % 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
101BOD, 5-day, 20 deg. CMO AVG report only all year
101Solids, total suspendedMO 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
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
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
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
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