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Federal facility (Water Supply), major discharger, Washington, the District of Columbia. NPDES permit DC0000019 expired May 31, 2026; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Color | per discharge | report only (mg/L) | all year | 002Q |
| Radioactivity | per discharge | report only (Ci/mL) | all year | 002Q |
| pH | maximum | ≤ 8.5 SU | all year | 002Q |
| pH | maximum | ≤ 8.5 SU | all year | 002Q |
| pH | minimum | ≥ 6 SU | all year | 002Q |
| pH | minimum | ≥ 6 SU | all year | 002Q |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 002Q |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 002Q |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 002Q |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 002Q |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 002Q |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 002Q |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 002Q |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 002Q |
| Oil & Grease | per discharge | report only (mg/L) | all year | 002Q |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 002Q |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 002Q |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 002Q |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 002Q |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 002Q |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 002Q |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year | 002Q |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year | 002Q |
| Nitrogen, organic total [as N] | per discharge | report only (mg/L) | all year | 002Q |
| Nitrite + Nitrate total [as N] | per discharge | report only (mg/L) | all year | 002Q |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002Q |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002Q |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 002Q |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 002Q |
| Phosphorus, total [as P] | per discharge | report only (mg/L) | all year | 002Q |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 002Q |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 002Q |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 002Q |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 002Q |
| Cyanide, total [as CN] | per discharge | report only (ug/L) | all year | 002Q |
| Sulfite [as SO3] | per discharge | report only (mg/L) | all year | 002Q |
| Sulfide, total [as S] | per discharge | report only (mg/L) | all year | 002Q |
| Magnesium, total [as Mg] | per discharge | report only (mg/L) | all year | 002Q |
| Fluoride, total [as F] | per discharge | report only (mg/L) | all year | 002Q |
| Arsenic, total [as As] | per discharge | report only (ug/L) | all year | 002Q |
| Barium, total [as Ba] | per discharge | report only (mg/L) | all year | 002Q |
| Beryllium, total [as Be] | per discharge | report only (ug/L) | all year | 002Q |
| Cadmium, total [as Cd] | per discharge | report only (ug/L) | all year | 002Q |
| Chromium, total [as Cr] | per discharge | report only (ug/L) | all year | 002Q |
| Cobalt, total [as Co] | per discharge | report only (mg/L) | all year | 002Q |
| Copper, total [as Cu] | per discharge | report only (ug/L) | all year | 002Q |
| Iron, total [as Fe] | per discharge | report only (mg/L) | all year | 002Q |
| Lead, total [as Pb] | per discharge | report only (ug/L) | all year | 002Q |
| Manganese, total [as Mn] | per discharge | report only (mg/L) | all year | 002Q |
| Thallium, total [as Tl] | per discharge | report only (ug/L) | all year | 002Q |
| Molybdenum, total [as Mo] | per discharge | report only (mg/L) | all year | 002Q |
| Nickel, total [as Ni] | per discharge | report only (ug/L) | all year | 002Q |
| Silver, total [as Ag] | per discharge | report only (ug/L) | all year | 002Q |
| Zinc, total [as Zn] | per discharge | report only (ug/L) | all year | 002Q |
| Antimony, total [as Sb] | per discharge | report only (ug/L) | all year | 002Q |
| Tin, total [as Sn] | per discharge | report only (mg/L) | all year | 002Q |
| Aluminum, total [as Al] | monthly average | ≤ 4 mg/L | all year | 002Q |
| Aluminum, total [as Al] | monthly average | ≤ 4 mg/L | all year | 002Q |
| Aluminum, total [as Al] | daily maximum | ≤ 8 mg/L | all year | 002Q |
| Aluminum, total [as Al] | daily maximum | ≤ 8 mg/L | all year | 002Q |
| Aluminum, total [as Al] | per discharge | report only (mg/L) | all year | 002Q |
| Selenium, total [as Se] | per discharge | report only (ug/L) | all year | 002Q |
| Titanium, total [as Ti] | per discharge | report only (mg/L) | all year | 002Q |
| Dichloromethane | per discharge | report only (ug/L) | all year | 002Q |
| Dichlorobromomethane | per discharge | report only (ug/L) | all year | 002Q |
| Carbon tetrachloride | per discharge | report only (ug/L) | all year | 002Q |
| 1,2-Dichloroethane | per discharge | report only (ug/L) | all year | 002Q |
| Bromoform | per discharge | report only (ug/L) | all year | 002Q |
| Chloroform | monthly average | report only (mg/L) | all year | 002Q |
| Chloroform | monthly average | report only (mg/L) | all year | 002Q |
| Chloroform | daily maximum | report only (mg/L) | all year | 002Q |
| Chloroform | daily maximum | report only (mg/L) | all year | 002Q |
| Chloroform | per discharge | report only (ug/L) | all year | 002Q |
| Toluene | per discharge | report only (ug/L) | all year | 002Q |
| Benzene | per discharge | report only (ug/L) | all year | 002Q |
| Acenaphthylene | per discharge | report only (ug/L) | all year | 002Q |
| Acenaphthene | per discharge | report only (ug/L) | all year | 002Q |
| Acrolein | per discharge | report only (ug/L) | all year | 002Q |
| Acrylonitrile | per discharge | report only (ug/L) | all year | 002Q |
| Anthracene | per discharge | report only (ug/L) | all year | 002Q |
| Benzo[k]fluoranthene | per discharge | report only (ug/L) | all year | 002Q |
| Benzo[a]pyrene | per discharge | report only (ug/L) | all year | 002Q |
| Bis[2-chloroethyl] ether | per discharge | report only (ug/L) | all year | 002Q |
| Bis[2-chloroethoxy]methane | per discharge | report only (ug/L) | all year | 002Q |
| Bis[2-chloroisopropyl] ether | per discharge | report only (ug/L) | all year | 002Q |
| Butyl benzyl phthalate | per discharge | report only (ug/L) | all year | 002Q |
| Chlorobenzene | per discharge | report only (ug/L) | all year | 002Q |
| Chlorodibromomethane | per discharge | report only (ug/L) | all year | 002Q |
| Chrysene | per discharge | report only (ug/L) | all year | 002Q |
| Diethyl phthalate | per discharge | report only (ug/L) | all year | 002Q |
| Dimethyl phthalate | per discharge | report only (ug/L) | all year | 002Q |
| 1,2-Diphenylhydrazine | per discharge | report only (ug/L) | all year | 002Q |
| Endosulfan sulfate | per discharge | report only (ug/L) | all year | 002Q |
| Endrin aldehyde | per discharge | report only (ug/L) | all year | 002Q |
| Ethylbenzene | per discharge | report only (ug/L) | all year | 002Q |
| Fluorene | per discharge | report only (ug/L) | all year | 002Q |
| Hexachlorocyclopentadiene | per discharge | report only (ug/L) | all year | 002Q |
| Hexachloroethane | per discharge | report only (ug/L) | all year | 002Q |
| Indeno[1,2,3-cd]pyrene | per discharge | report only (ug/L) | all year | 002Q |
| Isophorone | per discharge | report only (ug/L) | all year | 002Q |
| Methyl chloride [Chloromethane] | per discharge | report only (ug/L) | all year | 002Q |
| N-Nitrosodi-N-propylamine | per discharge | report only (ug/L) | all year | 002Q |
| N-Nitrosodiphenylamine | per discharge | report only (ug/L) | all year | 002Q |
| N-Nitrosodimethylamine [NDMA] | per discharge | report only (ug/L) | all year | 002Q |
| Nitrobenzene | per discharge | report only (ug/L) | all year | 002Q |
| Phenanthrene | per discharge | report only (ug/L) | all year | 002Q |
| Pyrene | per discharge | report only (ug/L) | all year | 002Q |
| Tetrachloroethylene | per discharge | report only (ug/L) | all year | 002Q |
| 1,1-Dichloroethane | per discharge | report only (ug/L) | all year | 002Q |
| 1,1-Dichloroethylene | per discharge | report only (ug/L) | all year | 002Q |
| 1,1,1-Trichloroethane | per discharge | report only (ug/L) | all year | 002Q |
| 1,1,2-Trichloroethane | per discharge | report only (ug/L) | all year | 002Q |
| 1,1,2,2-Tetrachloroethane | per discharge | report only (ug/L) | all year | 002Q |
| Benzo[ghi]perylene | per discharge | report only (ug/L) | all year | 002Q |
| Benzo[a]anthracene | per discharge | report only (ug/L) | all year | 002Q |
| 1,2-Dichlorobenzene | per discharge | report only (ug/L) | all year | 002Q |
| 1,2-Dichloropropane | per discharge | report only (ug/L) | all year | 002Q |
| 1,2,4-Trichlorobenzene | per discharge | report only (ug/L) | all year | 002Q |
| Dibenz[a,h]anthracene | per discharge | report only (ug/L) | all year | 002Q |
| 1,3-Dichlorobenzene | per discharge | report only (ug/L) | all year | 002Q |
| 1,4-Dichlorobenzene | per discharge | report only (ug/L) | all year | 002Q |
| 2-Chloroethyl vinyl ether, [mixed] | per discharge | report only (ug/L) | all year | 002Q |
| 2-Chloronaphthalene | per discharge | report only (ug/L) | all year | 002Q |
| 2-Chlorophenol | per discharge | report only (ug/L) | all year | 002Q |
| 2-Nitrophenol | per discharge | report only (ug/L) | all year | 002Q |
| Di-n-octyl phthalate | per discharge | report only (ug/L) | all year | 002Q |
| 2,4-Dichlorophenol | per discharge | report only (ug/L) | all year | 002Q |
| 2,4-Dimethylphenol | per discharge | report only (ug/L) | all year | 002Q |
| 2,4-Dinitrotoluene | per discharge | report only (ug/L) | all year | 002Q |
| 2,4-Dinitrophenol | per discharge | report only (ug/L) | all year | 002Q |
| 2,4,6-Trichlorophenol | per discharge | report only (ug/L) | all year | 002Q |
| 2,6-Dinitrotoluene | per discharge | report only (ug/L) | all year | 002Q |
| 3,3'-Dichlorobenzidine | per discharge | report only (ug/L) | all year | 002Q |
| 4-Bromophenyl phenyl ether | per discharge | report only (ug/L) | all year | 002Q |
| 4-Chlorophenyl phenyl ether | per discharge | report only (ug/L) | all year | 002Q |
| 4-Nitrophenol | per discharge | report only (ug/L) | all year | 002Q |
| 4,6-Dinitro-o-cresol | per discharge | report only (ug/L) | all year | 002Q |
| PCB-1016 | per discharge | report only (ug/L) | all year | 002Q |
| Phenol | per discharge | report only (ug/L) | all year | 002Q |
| Naphthalene | per discharge | report only (ug/L) | all year | 002Q |
| Surfactants [MBAS] | per discharge | report only (mg/L) | all year | 002Q |
| 1,2-Dichloroethene | per discharge | report only (ug/L) | all year | 002Q |
| Bromomethane | per discharge | report only (ug/L) | all year | 002Q |
| Pentachlorophenol | per discharge | report only (ug/L) | all year | 002Q |
| Di[2-ethylhexyl] phthalate [DEHP] | per discharge | report only (ug/L) | all year | 002Q |
| Di-n-butyl phthalate | per discharge | report only (ug/L) | all year | 002Q |
| Benzidine | per discharge | report only (ug/L) | all year | 002Q |
| Vinyl chloride | per discharge | report only (ug/L) | all year | 002Q |
| Trichloroethylene | per discharge | report only (ug/L) | all year | 002Q |
| 4,4'-DDT | per discharge | report only (ug/L) | all year | 002Q |
| 4,4'-DDD | per discharge | report only (ug/L) | all year | 002Q |
| 4,4'-DDE | per discharge | report only (ug/L) | all year | 002Q |
| Aldrin | per discharge | report only (ug/L) | all year | 002Q |
| Dieldrin | per discharge | report only (ug/L) | all year | 002Q |
| Endosulfan, total | per discharge | report only (ug/L) | all year | 002Q |
| Endrin | per discharge | report only (ug/L) | all year | 002Q |
| Toxaphene | per discharge | report only (ug/L) | all year | 002Q |
| Heptachlor | per discharge | report only (ug/L) | all year | 002Q |
| Heptachlor epoxide | per discharge | report only (ug/L) | all year | 002Q |
| PCB-1221 | per discharge | report only (ug/L) | all year | 002Q |
| PCB-1232 | per discharge | report only (ug/L) | all year | 002Q |
| PCB-1242 | per discharge | report only (ug/L) | all year | 002Q |
| PCB-1248 | per discharge | report only (ug/L) | all year | 002Q |
| PCB-1254 | per discharge | report only (ug/L) | all year | 002Q |
| PCB-1260 | per discharge | report only (ug/L) | all year | 002Q |
| Hexachlorobenzene | per discharge | report only (ug/L) | all year | 002Q |
| Hexachlorobutadiene | per discharge | report only (ug/L) | all year | 002Q |
| Phenols | per discharge | report only (ug/L) | all year | 002Q |
| Chlorine, total residual | monthly average | < .1 mg/L | all year | 002Q |
| Chlorine, total residual | monthly average | < .1 mg/L | all year | 002Q |
| Chlorine, total residual | daily maximum | < .1 mg/L | all year | 002Q |
| Chlorine, total residual | daily maximum | < .1 mg/L | all year | 002Q |
| Chlorine, total residual | per discharge | report only (mg/L) | all year | 002Q |
| Chlordane | per discharge | report only (ug/L) | all year | 002Q |
| Perchlorate [ClO4] | monthly average | report only (mg/L) | all year | 002Q |
| Perchlorate [ClO4] | monthly average | report only (mg/L) | all year | 002Q |
| Perchlorate [ClO4] | daily maximum | report only (mg/L) | all year | 002Q |
| Perchlorate [ClO4] | daily maximum | report only (mg/L) | all year | 002Q |
| Bromide [as Br] | per discharge | report only (ug/L) | all year | 002Q |
| Mercury, total [as Hg] | per discharge | report only (ug/L) | all year | 002Q |
| Coliform, fecal general | per discharge | report only (MPN/100mL) | all year | 002Q |
| 1,3-Dichloropropene | per discharge | report only (ug/L) | all year | 002Q |
| Hexachlorocyclohexane, total | per discharge | report only (ug/L) | all year | 002Q |
| Benzo[j]fluoranthene | per discharge | report only (ug/L) | all year | 002Q |
| 3,4-Benzofluoranthene | per discharge | report only (ug/L) | all year | 002Q |
| Sulfate | per discharge | report only (mg/L) | all year | 002Q |
| Boron, total | per discharge | report only (mg/L) | all year | 002Q |
| p-Chloro-m-cresol | per discharge | report only (ug/L) | all year | 002Q |
| Chloroethane | per discharge | report only (ug/L) | all year | 002Q |
| pH | minimum | ≥ 6 SU | all year | 006 |
| pH | maximum | ≤ 8.5 SU | all year | 006 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 006 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 006 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 006 |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year | 006 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 006 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 006 |
| Aluminum, total [as Al] | daily maximum | ≤ 2.07 mg/L | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Chlorine, total residual | daily maximum | < .1 mg/L | all year | 006 |
| pH | minimum | ≥ 6 SU | all year | 008 |
| pH | maximum | ≤ 8.5 SU | all year | 008 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 008 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 008 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 008 |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year | 008 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 008 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 008 |
| Aluminum, total [as Al] | daily maximum | ≤ 1.7 mg/L | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
| Chlorine, total residual | daily maximum | < .1 mg/L | all year | 008 |
| pH | minimum | ≥ 6 SU | all year | 009 |
| pH | maximum | ≤ 8.5 SU | all year | 009 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 009 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 009 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 009 |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year | 009 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 009 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 009 |
| Aluminum, total [as Al] | daily maximum | ≤ 1.7 mg/L | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 009 |
| Chlorine, total residual | daily maximum | < .1 mg/L | all year | 009 |
Cited limits by parameter: the District of Columbia's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/DC0000019 · MCP: https://passage-data.com/mcp