National Aeronautics and Space Administration (NASA)

NPDES permit VA0024457 · Minor FEDERAL · effective, expires 2030-09-30 · 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

1values over a limit
2required values missing, on 1 form(s)
0of 20 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, Kjeldahl, total [as N] (1).

Reporting

Reports are due about 10 days after each monitoring period ends (the most common figure among VA permits in EPA's filings — check your permit).

Limits in force (46)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MN >= 5.5 mg/L all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 10 mg/L all year
001Solids, total suspendedWKLY AVG <= 15 mg/L all year
001Solids, total suspendedMO AVG <= 11 kg/d all year
001Solids, total suspendedWKLY AVG <= 17 kg/d all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG <= 3 mg/L all year
001Nitrogen, Kjeldahl, total [as N]WKLY AVG <= 4.5 mg/L all year
001Nitrogen, Kjeldahl, total [as N]MO AVG <= 3.4 kg/d all year
001Nitrogen, Kjeldahl, total [as N]WKLY AVG <= 5.1 kg/d all year
001Hardness, total [as CaCO3]MO AVG report only all year
001Copper, total recoverableMO AVG <= 19 ug/L all year
001Copper, total recoverableMO AVG <= 19 ug/L all year
001Copper, total recoverableDAILY MX <= 19 ug/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMAXIMUM report only all year
001E. coliMO AVG <= 126 #/100mL all year
001Coliform, fecal generalMO AVG <= 200 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 11 kg/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 17 kg/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
003pHDAILY MN >= 6 SU all year
003pHDAILY MX <= 9 SU all year
003Solids, total suspendedDAILY MX report only all year
003Petrol hydrocarbons, total recoverableDAILY MX report only all year
003Precipitation volumeMO AVG report only all year
003Precipitation volumeDAILY MX report only all year
003pH exchange [su]MINIMUM report only all year
003pH exchange [su]MAXIMUM report only all year
025pHMINIMUM >= 6 SU all year
025pHMAXIMUM <= 9 SU all year
025Solids, total suspendedMO AVG <= 30 mg/L all year
025Solids, total suspendedDAILY MX <= 60 mg/L all year
025Flow, in conduit or thru treatment plantMO AVG report only all year
025Flow, in conduit or thru treatment plantMAXIMUM report only all year
025Chlorine, total residualMO AVG <= .011 mg/L all year
025Chlorine, total residualMAXIMUM <= .011 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