Water Quality Report

Washington, DC (20470): No EPA Water System

No EPA-registered water system mapped - county-level context only

EPA records for the water systems mapped to 20470 in Washington, DC do not contain a complete violation count and source window. ZipCheckup does not infer a clean record from missing or partial data.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources

Latest air quality, EPA records and weather alerts Current data temporarily unavailable

Current EPA violation data unavailable

Safety Score N/A

Water Quality N/A

Lead Risk N/A

NFIP Claim History Claim records 1 claim

Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

Flood 1 cumulative NFIP claim record. Claim evidence is historical, not current map coverage.

Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: source date or period is not present in ZipCheckup's accepted source record Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record

Water System

People Served

Health Violations (since 2021)

N/A

Water Source

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Score Breakdown

Overall Home Safety Score: Score unavailable

Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.

Canonical components

EPA water compliance

Unknown

Evidence missing

PFAS MCL screen

100/100

Observed

EPA radon zone

Unknown

Evidence missing

Annual EPA AirData AQI

Unknown

Evidence missing

Required domains

Drinking water

Unknown

Indoor environment

Unknown

Outdoor environment

Unknown

Coverage: 1 of 4 components and 0 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (2) MODERATE

Other Water Quality Reports in District of Columbia

20001 (Washington) - 4 violations recorded for mapped water systems
20002 (Washington) - 4 violations recorded for mapped water systems
20003 (Washington) - 4 violations recorded for mapped water systems
20004 (Washington) - 4 violations recorded for mapped water systems
20005 (Washington) - 4 violations recorded for mapped water systems
20006 (Washington) - 4 violations recorded for mapped water systems
20007 (Washington) - 4 violations recorded for mapped water systems
20008 (Washington) - 4 violations recorded for mapped water systems
20009 (Washington) - 4 violations recorded for mapped water systems
20010 (Washington) - 4 violations recorded for mapped water systems
20011 (Washington) - 4 violations recorded for mapped water systems
20012 (Washington) - 4 violations recorded for mapped water systems
20013 (Washington)
20015 (Washington) - 4 violations recorded for mapped water systems
20016 (Washington) - 4 violations recorded for mapped water systems
20017 (Washington) - 4 violations recorded for mapped water systems
20018 (Washington) - 4 violations recorded for mapped water systems
20019 (Washington) - 4 violations recorded for mapped water systems
20020 (Washington) - 4 violations recorded for mapped water systems
20022 (Washington)

Nearby Water Quality Reports

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). No EPA-registered water system is mapped to ZIP 20470. To look up the system serving a specific address, use the state SDWIS search tool.

5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →

Environmental Hazards (10) CRITICAL

Home & Infrastructure (2) OK

Cost & Community (4) OK

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Washington

Based on local data for ZIP 20470, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Home & Flood Insurance

The ZIP code for this report in Washington has 1 FEMA flood claim on record. Standard homeowner policies don't cover flood damage - make sure you're protected.

Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote

Check Your Flood Zone (Free)

FEMA flood map lookup - see if your property is in a flood zone

Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 20470 safe to drink?

No EPA-registered public water system is mapped to ZIP 20470, so there is no federal water quality record to assess. Residents in this area typically rely on private wells or very small systems below EPA reporting thresholds. If you rely on a private well, the CDC recommends testing it at least once a year. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 20470's water come from?

There is no community water system directly registered with the EPA for ZIP 20470. Most residents rely on private wells drawing from groundwater, or are served by a neighboring district that isn't cross-referenced to this ZIP in federal data. Check with your local county health department to confirm your source.

How can I get my water tested in Washington?

Since no EPA-registered water utility is mapped to ZIP 20470, contact your local county health department or hire a certified lab for independent home water testing. The EPA recommends testing private wells at least once a year.

What does the NFIP claim history show for ZIP 20470?

FEMA records contain 1 flood insurance claim filed in ZIP code 20470; the recorded rated-zone value (the most frequent one if there are several claims) is VE, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Washington, DC (20470): No EPA Water System. https://zipcheckup.com/report/20470/

BibTeX

@misc{zipcheckup-report-20470,
  author = {{ZipCheckup}},
  title  = {{Washington, DC (20470): No EPA Water System}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/20470/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 20470

ZIP Code	City, State	Distance	Grade
20013	Washington, DC	<1 mi	N/A
20026	Washington, DC	<1 mi	N/A
20029	Washington, DC	<1 mi	N/A
20030	Washington, DC	<1 mi	N/A
20033	Washington, DC	<1 mi	N/A
20035	Washington, DC	<1 mi	N/A
20038	Washington, DC	<1 mi	N/A
20039	Washington, DC	<1 mi	N/A
20040	Washington, DC	<1 mi	N/A
20041	Washington, DC	<1 mi	N/A