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Clean Water Act discharge permit · NPDES DC0021199

D.C. WASA (BLUE PLAINS), Washington, DC: NPDES DC0021199 discharge permit, effluent exceedances, inspections, penalties

D.C. WASA (BLUE PLAINS) holds NPDES permit DC0021199, which discharges to Potomac, Anacostia,& Piney Rivers. EPA’s file records it issued September 30, 2010 and expiring September 30, 2015. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedD.C. WASA (BLUE PLAINS)
Permittee as filedD.C. WASA (BLUE PLAINS)
NPDES IDDC0021199
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedSeptember 30, 2010
Expiration dateSeptember 30, 2015
AddressWashington, DC 20372
Receiving waterPOTOMAC, ANACOSTIA,& PINEY RIVERS
Receiving water impaired303(D) Listed
SubwatershedLower Rock Creek (HUC 020700100102)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Oxygen, dissolved [DO]27067January 31, 200384% over the limit
Phosphorus, total [as P]8108February 29, 2004507% over the limit
BOD, carbonaceous [5 day, 20 C]8104December 31, 1999143% over the limit
Solids, total suspended884December 31, 1999588% over the limit
Nitrogen, ammonia, total [as NH3]12233December 31, 19995,746% over the limit
pH491October 31, 2008
Flow, in conduit or thru treatment plant640
Nitrogen, total [as N]820
E. coli, colony forming units [CFU]620
Chlorine, total residual520
Nitrogen, Kjeldahl, total [as N]420
Nitrogen, nitrate total [as NO3]420
Enterococci: group D, MF trans, M-E, EIA020
Toxicity [chronic], Ceriodaphnia dubia010
Toxicity [chronic], Pimephales promelas [Fathead Minnow]010
Alkalinity, total [as CaCO3]200
Hardness, total [as CaCO3]200
Cadmium, dissolved [as Cd]200
Copper, dissolved [as Cu]200
Iron, dissolved [as Fe]200
Lead, dissolved [as Pb]200
Nickel, dissolved [as Ni]200
Zinc, dissolved [as Zn]200
Phosphorous, in total orthophosphate200
Nitrogen, nitrite total [as NO2]200
Mercury, total recoverable200

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

The newest 50 of 184.

DateWhat EPA recordedAgency
September 6, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
August 27, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
August 19, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
August 13, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentEP6
August 6, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
August 4, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
July 31, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
July 29, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
July 28, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
July 22, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
July 20, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
July 17, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
July 14, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
July 12, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
July 11, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentEP6
July 6, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentEP6
July 5, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
June 30, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
June 29, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentEP6
June 28, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
June 24, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentEP6
June 22, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
June 14, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
June 8, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentEP6
June 5, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
May 30, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentEP6
May 28, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
May 26, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
May 21, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
May 20, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentEP6
May 15, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
May 15, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
May 10, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
May 4, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentEP6
April 25, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
April 15, 2026Dry-weather CSO discharge to waters of the U.S. that may endanger health or the environmentEP6
March 24, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
March 18, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
March 15, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
March 12, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
March 9, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
February 16, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
February 11, 2026PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]EP6
February 9, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
February 8, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentEP6
February 8, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
February 6, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
February 5, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentEP6
February 3, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentEP6
February 2, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentEP6

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, DC0021199.

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID DC0021199 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.