National Aeronautics and Space Administration (NASA)

NPDES permit VA0024741 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 4 forms filed late

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

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 (37)

OutfallParameterStatisticLimitMonths
003Temperature, water deg. centigradeMAXIMUM <= 32 deg C all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Nitrogen, ammonia total [as N]MAXIMUM report only all year
003Chlorine produced oxidantsMAXIMUM report only all year
003Petrol hydrocarbons, total recoverableMAXIMUM report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
008Temperature, water deg. centigradeMAXIMUM <= 32 deg C all year
008pHMINIMUM >= 6 SU all year
008pHMAXIMUM <= 9 SU all year
008Nitrogen, ammonia total [as N]MAXIMUM report only all year
008Phosphorus, total [as P]MAXIMUM report only all year
008Hardness, total [as CaCO3]MAXIMUM report only all year
008Zinc, total recoverableDAILY MX report only all year
008Copper, total recoverableDAILY MX report only all year
008Chlorine produced oxidantsDAILY MX report only all year
008Flow, in conduit or thru treatment plantMAXIMUM report only all year
009Temperature, water deg. centigradeMAXIMUM <= 32 deg C all year
009pHMINIMUM >= 6 SU all year
009pHMAXIMUM <= 9 SU all year
009Solids, total suspendedMAXIMUM report only all year
009Nitrogen, ammonia total [as N]MAXIMUM report only all year
009Hardness, total [as CaCO3]MAXIMUM report only all year
009Iron, total recoverableMAXIMUM report only all year
009Aluminum, total recoverableMAXIMUM report only all year
009Chlorine produced oxidantsMAXIMUM report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
012Temperature, water deg. centigradeMAXIMUM <= 32 deg C all year
012pHMINIMUM >= 6 SU all year
012pHMAXIMUM <= 9 SU all year
012Nitrogen, ammonia total [as N]MAXIMUM report only all year
012Phosphorus, total [as P]MAXIMUM report only all year
012Hardness, total [as CaCO3]MAXIMUM report only all year
012Zinc, total recoverableDAILY MX report only all year
012Copper, total recoverableDAILY MX report only all year
012Chlorine produced oxidantsDAILY MX report only all year
012Flow, in conduit or thru treatment plantMAXIMUM 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