W

Washington, DC

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️16 health-based violations on record.
0
Water sources
68
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

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Reported illness & cancer claims

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Self-reported issues

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Pollution sources & reported claims near your water

Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.

Critical High Medium Reported claim

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Public water systems

NATIONAL AIRPORT

PWSID:
VA6013080
Source:
Surface water
Serves:
28,055 people

NAVAL STATION WASHINGTON - WNY

PWSID:
DC0000003
Source:
Surface water
Serves:
15,690 people

JOINT BASE ANACOSTIA - BOLLING

PWSID:
DC0000004
Source:
Surface water
Serves:
19,312 people

D.C. WATER AND SEWER AUTHORITY

PWSID:
DC0000002
Source:
Surface water
Serves:
632,323 people

EPA & DEP violations

NAVAL STATION WASHINGTON - WNY

PWSID DC000000320 violations

  • Monitoring violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 35 (code 35) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Monitoring violation · Began Nov 17, 2025 · 8 months ago · Source ↗

  • Other violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 34 (code 75) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Other violation · Began Sep 18, 2025 · 10 months ago · Source ↗

  • Other violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 32 (code 72) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Other violation · Began Jul 1, 2025 · 1 year ago · Source ↗

  • MCL exceedance — NAVAL STATION WASHINGTON - WNY

    high severityHealth-basedOpen

    EPA SDWIS violation 33 (code 02) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · MCL exceedance · Began Jul 1, 2025 · 1 year ago · Source ↗

  • MCL exceedance — NAVAL STATION WASHINGTON - WNY

    high severityHealth-basedOpen

    EPA SDWIS violation 31 (code 02) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · MCL exceedance · Began Apr 1, 2025 · 1 year ago · Source ↗

  • Reporting violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 30 (code 4B) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Reporting violation · Began Feb 11, 2025 · 1 year ago · Source ↗

  • Other violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 29 (code 71) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Other violation · Began Jul 1, 2023 · 3 years ago · Source ↗

  • Monitoring violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 28 (code 3B) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2023 · 3 years ago · Source ↗

  • Treatment technique violation — NAVAL STATION WASHINGTON - WNY

    high severityHealth-basedResolved

    EPA SDWIS violation 26 (code 2A) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Treatment technique violation · Began Jan 1, 2023 · 3 years ago · Source ↗

  • Reporting violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 27 (code 4A) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Reporting violation · Began Jan 1, 2023 · 3 years ago · Source ↗

  • Monitoring violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 20 (code 27) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2019 · 7 years ago · Source ↗

  • Monitoring violation — NAVAL STATION WASHINGTON - WNY

    low severityOpen

    EPA SDWIS violation 23 (code 27) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2019 · 7 years ago · Source ↗

  • Monitoring violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 17 (code 66) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Monitoring violation · Began Dec 31, 2016 · 9 years ago · Source ↗

  • Reporting violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 19 (code 4A) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Reporting violation · Began Dec 10, 2016 · 9 years ago · Source ↗

  • Treatment technique violation — NAVAL STATION WASHINGTON - WNY

    high severityHealth-basedResolved

    EPA SDWIS violation 18 (code 45) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Treatment technique violation · Began Nov 1, 2016 · 9 years ago · Source ↗

  • Other violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 15 (code 72) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Other violation · Began Jul 1, 2016 · 10 years ago · Source ↗

  • Other violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 13 (code 75) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Other violation · Began May 26, 2016 · 10 years ago · Source ↗

  • Other violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 14 (code 75) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Other violation · Began May 26, 2016 · 10 years ago · Source ↗

  • Other violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 6 (code 71) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Other violation · Began Jul 1, 2011 · 15 years ago · Source ↗

  • Other violation — NAVAL STATION WASHINGTON - WNY

    low severityResolved

    EPA SDWIS violation 1 (code 71) at NAVAL STATION WASHINGTON - WNY (PWSID DC0000003).

    EPA SDWIS · Other violation · Began Jul 1, 2007 · 19 years ago · Source ↗

JOINT BASE ANACOSTIA - BOLLING

PWSID DC000000430 violations

  • Treatment technique violation — JOINT BASE ANACOSTIA - BOLLING

    high severityHealth-basedOpen

    EPA SDWIS violation 45 (code 41) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Treatment technique violation · Began Sep 1, 2025 · 11 months ago · Source ↗

  • Other violation — JOINT BASE ANACOSTIA - BOLLING

    low severityOpen

    EPA SDWIS violation 44 (code 76) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Other violation · Began Sep 23, 2024 · 1 year ago · Source ↗

  • Other violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 40 (code 76) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Other violation · Began Aug 19, 2024 · 1 year ago · Source ↗

  • Monitoring violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 42 (code 66) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Monitoring violation · Began Jul 31, 2024 · 1 year ago · Source ↗

  • Other violation — JOINT BASE ANACOSTIA - BOLLING

    low severityOpen

    EPA SDWIS violation 43 (code 76) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Other violation · Began Apr 15, 2024 · 2 years ago · Source ↗

  • Monitoring violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 38 (code 27) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2024 · 2 years ago · Source ↗

  • Monitoring violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 39 (code 27) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2024 · 2 years ago · Source ↗

  • Monitoring violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 34 (code 3A) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Monitoring violation · Began Nov 1, 2023 · 2 years ago · Source ↗

  • Monitoring violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 35 (code 36) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Monitoring violation · Began Nov 1, 2023 · 2 years ago · Source ↗

  • Monitoring violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 37 (code 03) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2023 · 2 years ago · Source ↗

  • Monitoring violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 32 (code 36) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2023 · 3 years ago · Source ↗

  • Monitoring violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 33 (code 3A) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2023 · 3 years ago · Source ↗

  • Monitoring violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 36 (code 03) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2023 · 3 years ago · Source ↗

  • Treatment technique violation — JOINT BASE ANACOSTIA - BOLLING

    high severityHealth-basedResolved

    EPA SDWIS violation 31 (code 41) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Treatment technique violation · Began Oct 1, 2022 · 3 years ago · Source ↗

  • Other violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 27 (code 71) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Other violation · Began Jul 1, 2022 · 4 years ago · Source ↗

  • Other violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 28 (code 72) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Other violation · Began Jul 1, 2022 · 4 years ago · Source ↗

  • Reporting violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 29 (code 4B) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Reporting violation · Began Jun 1, 2022 · 4 years ago · Source ↗

  • Other violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 30 (code 09) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Other violation · Began Jun 1, 2022 · 4 years ago · Source ↗

  • Monitoring violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 24 (code 52) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2021 · 4 years ago · Source ↗

  • Treatment technique violation — JOINT BASE ANACOSTIA - BOLLING

    high severityHealth-basedResolved

    EPA SDWIS violation 22 (code 41) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Treatment technique violation · Began Jan 1, 2021 · 5 years ago · Source ↗

  • Monitoring violation — JOINT BASE ANACOSTIA - BOLLING

    low severityOpen

    EPA SDWIS violation 26 (code 03) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2021 · 5 years ago · Source ↗

  • Treatment technique violation — JOINT BASE ANACOSTIA - BOLLING

    high severityHealth-basedResolved

    EPA SDWIS violation 14 (code 41) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Treatment technique violation · Began Jul 1, 2019 · 7 years ago · Source ↗

  • Monitoring violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 19 (code 27) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Monitoring violation · Began Jul 1, 2019 · 7 years ago · Source ↗

  • Treatment technique violation — JOINT BASE ANACOSTIA - BOLLING

    high severityHealth-basedResolved

    EPA SDWIS violation 18 (code 41) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Treatment technique violation · Began Dec 1, 2018 · 7 years ago · Source ↗

  • Monitoring violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 13 (code 52) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Monitoring violation · Began Oct 10, 2018 · 7 years ago · Source ↗

  • Other violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 8 (code 5A) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Other violation · Began Apr 1, 2016 · 10 years ago · Source ↗

  • Treatment technique violation — JOINT BASE ANACOSTIA - BOLLING

    high severityHealth-basedOpen

    EPA SDWIS violation 9 (code 45) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Treatment technique violation · Began Mar 31, 2012 · 14 years ago · Source ↗

  • Other violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 5 (code 71) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Other violation · Began Jul 1, 2011 · 15 years ago · Source ↗

  • Treatment technique violation — JOINT BASE ANACOSTIA - BOLLING

    high severityHealth-basedOpen

    EPA SDWIS violation 10 (code 45) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Treatment technique violation · Began Nov 19, 2010 · 15 years ago · Source ↗

  • Other violation — JOINT BASE ANACOSTIA - BOLLING

    low severityResolved

    EPA SDWIS violation 1 (code 71) at JOINT BASE ANACOSTIA - BOLLING (PWSID DC0000004).

    EPA SDWIS · Other violation · Began Jul 1, 2007 · 19 years ago · Source ↗

D.C. WATER AND SEWER AUTHORITY

PWSID DC000000218 violations

  • Monitoring violation — D.C. WATER AND SEWER AUTHORITY

    low severityResolved

    EPA SDWIS violation 31 (code 3A) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2023 · 3 years ago · Source ↗

  • Monitoring violation — D.C. WATER AND SEWER AUTHORITY

    low severityResolved

    EPA SDWIS violation 33 (code 36) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2023 · 3 years ago · Source ↗

  • Monitoring violation — D.C. WATER AND SEWER AUTHORITY

    low severityResolved

    EPA SDWIS violation 30 (code 3A) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Monitoring violation · Began Dec 1, 2022 · 3 years ago · Source ↗

  • Monitoring violation — D.C. WATER AND SEWER AUTHORITY

    low severityResolved

    EPA SDWIS violation 32 (code 36) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Monitoring violation · Began Dec 1, 2022 · 3 years ago · Source ↗

  • Other violation — D.C. WATER AND SEWER AUTHORITY

    low severityResolved

    EPA SDWIS violation 16 (code 71) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Other violation · Began Jul 1, 2005 · 21 years ago · Source ↗

  • Treatment technique violation — D.C. WATER AND SEWER AUTHORITY

    high severityHealth-basedResolved

    EPA SDWIS violation 2 (code 64) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Treatment technique violation · Began Oct 1, 2004 · 21 years ago · Source ↗

  • Other violation — D.C. WATER AND SEWER AUTHORITY

    low severityResolved

    EPA SDWIS violation 13 (code 72) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Other violation · Began Oct 1, 2003 · 22 years ago · Source ↗

  • Monitoring violation — D.C. WATER AND SEWER AUTHORITY

    low severityResolved

    EPA SDWIS violation 11 (code 52) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Monitoring violation · Began Jul 1, 2003 · 23 years ago · Source ↗

  • Monitoring violation — D.C. WATER AND SEWER AUTHORITY

    low severityResolved

    EPA SDWIS violation 10 (code 52) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2003 · 23 years ago · Source ↗

  • Treatment technique violation — D.C. WATER AND SEWER AUTHORITY

    high severityHealth-basedResolved

    EPA SDWIS violation 12 (code 65) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Treatment technique violation · Began Oct 1, 2002 · 23 years ago · Source ↗

  • Treatment technique violation — D.C. WATER AND SEWER AUTHORITY

    high severityHealth-basedResolved

    EPA SDWIS violation 15 (code 64) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Treatment technique violation · Began Oct 1, 2002 · 23 years ago · Source ↗

  • Treatment technique violation — D.C. WATER AND SEWER AUTHORITY

    high severityHealth-basedResolved

    EPA SDWIS violation 7 (code 64) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Treatment technique violation · Began Jul 1, 2001 · 25 years ago · Source ↗

  • Monitoring violation — D.C. WATER AND SEWER AUTHORITY

    low severityResolved

    EPA SDWIS violation 8 (code 52) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Monitoring violation · Began Jul 1, 2001 · 25 years ago · Source ↗

  • Treatment technique violation — D.C. WATER AND SEWER AUTHORITY

    high severityHealth-basedResolved

    EPA SDWIS violation 9 (code 65) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Treatment technique violation · Began Jul 1, 2001 · 25 years ago · Source ↗

  • Monitoring violation — D.C. WATER AND SEWER AUTHORITY

    low severityResolved

    EPA SDWIS violation 6 (code 52) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Monitoring violation · Began Jul 1, 2000 · 26 years ago · Source ↗

  • Monitoring violation — D.C. WATER AND SEWER AUTHORITY

    low severityResolved

    EPA SDWIS violation 5 (code 52) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Monitoring violation · Began Jul 1, 1999 · 27 years ago · Source ↗

  • Monitoring violation — D.C. WATER AND SEWER AUTHORITY

    low severityResolved

    EPA SDWIS violation 4 (code 52) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Monitoring violation · Began Jan 1, 1999 · 27 years ago · Source ↗

  • Monitoring violation — D.C. WATER AND SEWER AUTHORITY

    low severityResolved

    EPA SDWIS violation 3 (code 52) at D.C. WATER AND SEWER AUTHORITY (PWSID DC0000002).

    EPA SDWIS · Monitoring violation · Began Jul 1, 1998 · 28 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.