BWX Technologies Inc

NPDES permit VA0003697 · Minor NON-POTW · effective, expires 2031-06-30 · 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

0values over a limit
3required values missing, on 1 form(s)
19of 68 forms filed late

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

Reporting

Reports are due about 10 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (96)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX <= 32 deg C all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Oil & GreaseMO AVG report only all year
001Oil & GreaseDAILY MX report only all year
001Oil & GreaseMO AVG <= 9.1 kg/d all year
001Oil & GreaseDAILY MX <= 14 kg/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 5.7 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 8.3 mg/L all year
001Sulfide, dissolved, [as S]DAILY MX report only all year
001Hardness, total [as CaCO3]MO AVG report only all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Fluoride, total [as F]MO AVG report only all year
001Fluoride, total [as F]DAILY MX report only all year
001Fluoride, total [as F]MO AVG <= 15 kg/d all year
001Fluoride, total [as F]DAILY MX <= 30 kg/d all year
001Chromium, total recoverableMO AVG report only all year
001Chromium, total recoverableDAILY MX report only all year
001Chromium, total recoverableMO AVG <= .1 kg/d all year
001Chromium, total recoverableDAILY MX <= .2 kg/d all year
001Copper, total recoverableMO AVG report only all year
001Copper, total recoverableDAILY MX report only all year
001Copper, total recoverableMO AVG <= 1 kg/d all year
001Copper, total recoverableDAILY MX <= 1.5 kg/d 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
001Hydrogen sulfideDAILY MX report only all year
001Length of longest pH excursionMAXIMUM <= 60 min all year
001pH range excursions, monthly total accumMAXIMUM <= 446 min all year
002Temperature, water deg. centigradeINST MAX <= 32 deg C all year
002pHINST MIN >= 6 SU all year
002pHINST MAX <= 9 SU all year
002Nitrogen, total [as N]DAILY MX report only all year
002Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
002Nitrite + Nitrate total [as N]DAILY MX report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Zinc, total recoverableMAXIMUM report only all year
002Aluminum, total recoverableMAXIMUM report only all year
002Copper, total recoverableMAXIMUM report only all year
002Flow, in conduit or thru treatment plantMAXIMUM report only all year
003Temperature, water deg. centigradeINST MAX <= 32 deg C all year
003pHINST MIN >= 6 SU all year
003pHINST MAX <= 9 SU all year
003Nitrogen, total [as N]DAILY MX report only all year
003Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
003Nitrite + Nitrate total [as N]DAILY MX report only all year
003Phosphorus, total [as P]DAILY MX report only all year
003Zinc, total recoverableMAXIMUM report only all year
003Aluminum, total recoverableMAXIMUM report only all year
003Copper, total recoverableMAXIMUM report only all year
003Flow, in conduit or thru treatment plantMAXIMUM report only all year
101BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
101BOD, 5-day, 20 deg. CMX WK AV <= 45 mg/L all year
101BOD, 5-day, 20 deg. CMO AVG <= 18.1 kg/d all year
101BOD, 5-day, 20 deg. CMX WK AV <= 27.2 kg/d all year
101Solids, total suspendedMO AVG <= 30 mg/L all year
101Solids, total suspendedMX WK AV <= 45 mg/L all year
101Solids, total suspendedMO AVG <= 18.1 kg/d all year
101Solids, total suspendedMX WK AV <= 27.2 kg/d all year
101Flow, in conduit or thru treatment plantMO AVG <= .16 MGD all year
101Flow, in conduit or thru treatment plantMX WK AV report only all year
101E. coliGEO MEAN <= 126 #/100mL all year
601Solids, total suspendedMO AVG <= 30 mg/L all year
601Solids, total suspendedDAILY MX <= 60 mg/L all year
601Solids, total suspendedMO AVG report only all year
601Solids, total suspendedDAILY MX report only all year
601Flow, in conduit or thru treatment plantMO AVG report only all year
601Flow, in conduit or thru treatment plantDAILY MX report only all year
701Solids, total suspendedMO AVG <= 31 mg/L all year
701Solids, total suspendedDAILY MX <= 60 mg/L all year
701Solids, total suspendedMO AVG report only all year
701Solids, total suspendedDAILY MX report only all year
701Oil & GreaseMO AVG <= 26 mg/L all year
701Oil & GreaseDAILY MX <= 52 mg/L all year
701Cyanide, total [as CN]MO AVG <= .65 mg/L all year
701Cyanide, total [as CN]DAILY MX <= 1.2 mg/L all year
701Nickel, total recoverableMO AVG <= 2.38 mg/L all year
701Nickel, total recoverableDAILY MX <= 3.98 mg/L all year
701Silver total recoverableMO AVG <= .24 mg/L all year
701Silver total recoverableDAILY MX <= .43 mg/L all year
701Zinc, total recoverableMO AVG <= 1.48 mg/L all year
701Zinc, total recoverableDAILY MX <= 2.61 mg/L all year
701Cadmium, total recoverableMO AVG <= .26 mg/L all year
701Cadmium, total recoverableDAILY MX <= .69 mg/L all year
701Lead, total recoverableMO AVG <= .43 mg/L all year
701Lead, total recoverableDAILY MX <= .69 mg/L all year
701Chromium, total recoverableMO AVG <= 1.71 mg/L all year
701Chromium, total recoverableDAILY MX <= 2.77 mg/L all year
701Copper, total recoverableMO AVG <= 2.07 mg/L all year
701Copper, total recoverableDAILY MX <= 3.38 mg/L all year
701Flow, in conduit or thru treatment plantMO AVG report only all year
701Flow, in conduit or thru treatment plantDAILY MX 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