WASH AQUEDUCT-DALECARLIA PLANT

NPDES permit DC0000019 · Major FEDERAL · expired, expires 2026-05-31 · 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.

This permit expired on 2026-05-31 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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 28 days after each monitoring period ends (the most common figure among DC permits in EPA's filings — check your permit).

Limits in force (222)

OutfallParameterStatisticLimitMonths
002QColorDN report only all year
002QRadioactivityDN report only all year
002QpHMAXIMUM <= 8.5 SU all year
002QpHMAXIMUM <= 8.5 SU all year
002QpHMINIMUM >= 6 SU all year
002QpHMINIMUM >= 6 SU all year
002QSolids, total suspendedMO AVG <= 30 mg/L all year
002QSolids, total suspendedMO AVG <= 30 mg/L all year
002QSolids, total suspendedDAILY MX <= 60 mg/L all year
002QSolids, total suspendedDAILY MX <= 60 mg/L all year
002QSolids, total suspendedMO AVG report only all year
002QSolids, total suspendedMO AVG report only all year
002QSolids, total suspendedDAILY MX report only all year
002QSolids, total suspendedDAILY MX report only all year
002QOil & GreaseDN report only all year
002QNitrogen, total [as N]MO AVG report only all year
002QNitrogen, total [as N]MO AVG report only all year
002QNitrogen, total [as N]DAILY MX report only all year
002QNitrogen, total [as N]DAILY MX report only all year
002QNitrogen, total [as N]MO AVG report only all year
002QNitrogen, total [as N]MO AVG report only all year
002QNitrogen, total [as N]DAILY MX report only all year
002QNitrogen, total [as N]DAILY MX report only all year
002QNitrogen, organic total [as N]DN report only all year
002QNitrite + Nitrate total [as N]DN report only all year
002QPhosphorus, total [as P]MO AVG report only all year
002QPhosphorus, total [as P]MO AVG report only all year
002QPhosphorus, total [as P]DAILY MX report only all year
002QPhosphorus, total [as P]DAILY MX report only all year
002QPhosphorus, total [as P]DN report only all year
002QPhosphorus, total [as P]MO AVG report only all year
002QPhosphorus, total [as P]MO AVG report only all year
002QPhosphorus, total [as P]DAILY MX report only all year
002QPhosphorus, total [as P]DAILY MX report only all year
002QCyanide, total [as CN]DN report only all year
002QSulfite [as SO3]DN report only all year
002QSulfide, total [as S]DN report only all year
002QMagnesium, total [as Mg]DN report only all year
002QFluoride, total [as F]DN report only all year
002QArsenic, total [as As]DN report only all year
002QBarium, total [as Ba]DN report only all year
002QBeryllium, total [as Be]DN report only all year
002QCadmium, total [as Cd]DN report only all year
002QChromium, total [as Cr]DN report only all year
002QCobalt, total [as Co]DN report only all year
002QCopper, total [as Cu]DN report only all year
002QIron, total [as Fe]DN report only all year
002QLead, total [as Pb]DN report only all year
002QManganese, total [as Mn]DN report only all year
002QThallium, total [as Tl]DN report only all year
002QMolybdenum, total [as Mo]DN report only all year
002QNickel, total [as Ni]DN report only all year
002QSilver, total [as Ag]DN report only all year
002QZinc, total [as Zn]DN report only all year
002QAntimony, total [as Sb]DN report only all year
002QTin, total [as Sn]DN report only all year
002QAluminum, total [as Al]MO AVG <= 4 mg/L all year
002QAluminum, total [as Al]MO AVG <= 4 mg/L all year
002QAluminum, total [as Al]DAILY MX <= 8 mg/L all year
002QAluminum, total [as Al]DAILY MX <= 8 mg/L all year
002QAluminum, total [as Al]DN report only all year
002QSelenium, total [as Se]DN report only all year
002QTitanium, total [as Ti]DN report only all year
002QDichloromethaneDN report only all year
002QDichlorobromomethaneDN report only all year
002QCarbon tetrachlorideDN report only all year
002Q1,2-DichloroethaneDN report only all year
002QBromoformDN report only all year
002QChloroformMO AVG report only all year
002QChloroformMO AVG report only all year
002QChloroformDAILY MX report only all year
002QChloroformDAILY MX report only all year
002QChloroformDN report only all year
002QTolueneDN report only all year
002QBenzeneDN report only all year
002QAcenaphthyleneDN report only all year
002QAcenaphtheneDN report only all year
002QAcroleinDN report only all year
002QAcrylonitrileDN report only all year
002QAnthraceneDN report only all year
002QBenzo[k]fluorantheneDN report only all year
002QBenzo[a]pyreneDN report only all year
002QBis[2-chloroethyl] etherDN report only all year
002QBis[2-chloroethoxy]methaneDN report only all year
002QBis[2-chloroisopropyl] etherDN report only all year
002QButyl benzyl phthalateDN report only all year
002QChlorobenzeneDN report only all year
002QChlorodibromomethaneDN report only all year
002QChryseneDN report only all year
002QDiethyl phthalateDN report only all year
002QDimethyl phthalateDN report only all year
002Q1,2-DiphenylhydrazineDN report only all year
002QEndosulfan sulfateDN report only all year
002QEndrin aldehydeDN report only all year
002QEthylbenzeneDN report only all year
002QFluoreneDN report only all year
002QHexachlorocyclopentadieneDN report only all year
002QHexachloroethaneDN report only all year
002QIndeno[1,2,3-cd]pyreneDN report only all year
002QIsophoroneDN report only all year
002QMethyl chloride [Chloromethane]DN report only all year
002QN-Nitrosodi-N-propylamineDN report only all year
002QN-NitrosodiphenylamineDN report only all year
002QN-Nitrosodimethylamine [NDMA]DN report only all year
002QNitrobenzeneDN report only all year
002QPhenanthreneDN report only all year
002QPyreneDN report only all year
002QTetrachloroethyleneDN report only all year
002Q1,1-DichloroethaneDN report only all year
002Q1,1-DichloroethyleneDN report only all year
002Q1,1,1-TrichloroethaneDN report only all year
002Q1,1,2-TrichloroethaneDN report only all year
002Q1,1,2,2-TetrachloroethaneDN report only all year
002QBenzo[ghi]peryleneDN report only all year
002QBenzo[a]anthraceneDN report only all year
002Q1,2-DichlorobenzeneDN report only all year
002Q1,2-DichloropropaneDN report only all year
002Q1,2,4-TrichlorobenzeneDN report only all year
002QDibenz[a,h]anthraceneDN report only all year
002Q1,3-DichlorobenzeneDN report only all year
002Q1,4-DichlorobenzeneDN report only all year
002Q2-Chloroethyl vinyl ether, [mixed]DN report only all year
002Q2-ChloronaphthaleneDN report only all year
002Q2-ChlorophenolDN report only all year
002Q2-NitrophenolDN report only all year
002QDi-n-octyl phthalateDN report only all year
002Q2,4-DichlorophenolDN report only all year
002Q2,4-DimethylphenolDN report only all year
002Q2,4-DinitrotolueneDN report only all year
002Q2,4-DinitrophenolDN report only all year
002Q2,4,6-TrichlorophenolDN report only all year
002Q2,6-DinitrotolueneDN report only all year
002Q3,3'-DichlorobenzidineDN report only all year
002Q4-Bromophenyl phenyl etherDN report only all year
002Q4-Chlorophenyl phenyl etherDN report only all year
002Q4-NitrophenolDN report only all year
002Q4,6-Dinitro-o-cresolDN report only all year
002QPCB-1016DN report only all year
002QPhenolDN report only all year
002QNaphthaleneDN report only all year
002QSurfactants [MBAS]DN report only all year
002Q1,2-DichloroetheneDN report only all year
002QBromomethaneDN report only all year
002QPentachlorophenolDN report only all year
002QDi[2-ethylhexyl] phthalate [DEHP]DN report only all year
002QDi-n-butyl phthalateDN report only all year
002QBenzidineDN report only all year
002QVinyl chlorideDN report only all year
002QTrichloroethyleneDN report only all year
002Q4,4'-DDTDN report only all year
002Q4,4'-DDDDN report only all year
002Q4,4'-DDEDN report only all year
002QAldrinDN report only all year
002QDieldrinDN report only all year
002QEndosulfan, totalDN report only all year
002QEndrinDN report only all year
002QToxapheneDN report only all year
002QHeptachlorDN report only all year
002QHeptachlor epoxideDN report only all year
002QPCB-1221DN report only all year
002QPCB-1232DN report only all year
002QPCB-1242DN report only all year
002QPCB-1248DN report only all year
002QPCB-1254DN report only all year
002QPCB-1260DN report only all year
002QHexachlorobenzeneDN report only all year
002QHexachlorobutadieneDN report only all year
002QPhenolsDN report only all year
002QChlorine, total residualMO AVG < .1 mg/L all year
002QChlorine, total residualMO AVG < .1 mg/L all year
002QChlorine, total residualDAILY MX < .1 mg/L all year
002QChlorine, total residualDAILY MX < .1 mg/L all year
002QChlorine, total residualDN report only all year
002QChlordaneDN report only all year
002QPerchlorate [ClO4]MO AVG report only all year
002QPerchlorate [ClO4]MO AVG report only all year
002QPerchlorate [ClO4]DAILY MX report only all year
002QPerchlorate [ClO4]DAILY MX report only all year
002QBromide [as Br]DN report only all year
002QMercury, total [as Hg]DN report only all year
002QColiform, fecal generalDN report only all year
002Q1,3-DichloropropeneDN report only all year
002QHexachlorocyclohexane, totalDN report only all year
002QBenzo[j]fluorantheneDN report only all year
002Q3,4-BenzofluorantheneDN report only all year
002QSulfateDN report only all year
002QBoron, totalDN report only all year
002Qp-Chloro-m-cresolDN report only all year
002QChloroethaneDN report only all year
006pHMINIMUM >= 6 SU all year
006pHMAXIMUM <= 8.5 SU all year
006Solids, total suspendedDAILY MX <= 60 mg/L all year
006Solids, total suspendedDAILY MX report only all year
006Nitrogen, total [as N]DAILY MX report only all year
006Nitrogen, total [as N]DAILY MX report only all year
006Phosphorus, total [as P]DAILY MX report only all year
006Phosphorus, total [as P]DAILY MX report only all year
006Aluminum, total [as Al]DAILY MX <= 2.07 mg/L all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Chlorine, total residualDAILY MX < .1 mg/L all year
008pHMINIMUM >= 6 SU all year
008pHMAXIMUM <= 8.5 SU all year
008Solids, total suspendedDAILY MX <= 60 mg/L all year
008Solids, total suspendedDAILY MX report only all year
008Nitrogen, total [as N]DAILY MX report only all year
008Nitrogen, total [as N]DAILY MX report only all year
008Phosphorus, total [as P]DAILY MX report only all year
008Phosphorus, total [as P]DAILY MX report only all year
008Aluminum, total [as Al]DAILY MX <= 1.7 mg/L all year
008Flow, in conduit or thru treatment plantDAILY MX report only all year
008Chlorine, total residualDAILY MX < .1 mg/L all year
009pHMINIMUM >= 6 SU all year
009pHMAXIMUM <= 8.5 SU all year
009Solids, total suspendedDAILY MX <= 60 mg/L all year
009Solids, total suspendedDAILY MX report only all year
009Nitrogen, total [as N]DAILY MX report only all year
009Nitrogen, total [as N]DAILY MX report only all year
009Phosphorus, total [as P]DAILY MX report only all year
009Phosphorus, total [as P]DAILY MX report only all year
009Aluminum, total [as Al]DAILY MX <= 1.7 mg/L all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
009Chlorine, total residualDAILY MX < .1 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