1
PFAS have been identified in Washington DC's water at 2.8 parts per trillion. A reverse osmosis system is the most reliable home treatment.
2
Chlorine levels may affect the taste of Washington DC's tap water. A carbon filter improves flavor.

Score

67 /100

Moderate

"Good" threshold (70)

Washington DC tap water is sourced from Potomac River and treated by DC Water. PFAS forever chemicals have been detected. Overall purity score: 67/100 (Moderate). Updated for 2026.

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Best filters matched to Washington DC's 3 issues.

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MATCHED TO WASHINGTON DC'S WATER DATA

Best Water Filters for Washington DC, DC (2026)

Matched to PFAS Detected, Moderate Chlorine in Washington DC.

PFAS Detected Moderate Chlorine

Best Overall #1 for Washington DC

Clearly Filtered Water Pitcher

Pitcher Filter

$80-95

Why this fits Washington DC

Removes 99%+ of PFAS detected in Washington DC's water
Eliminates chlorine taste and odor from Washington DC's water
NSF/ANSI 42 + NSF/ANSI 53 + NSF/ANSI 401 certified

Pros & Cons +

No installation fill and pour

Removes 365+ contaminants including PFAS

Small capacity 2-3 people

Filter replacements every 4 months

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Best for PFAS

Waterdrop G3P800 Tankless RO

Tankless Reverse Osmosis

$380-450

Why this fits Washington DC

Removes 99%+ of PFAS detected in Washington DC's water
Eliminates chlorine taste and odor from Washington DC's water
NSF/ANSI 58 + NSF 372 certified

Pros & Cons +

No tank saves cabinet space

800 GPD fast flow rate

Higher upfront cost

Filter replacements are proprietary

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Best for Taste

APEC Water Systems ROES-50

Under-Sink Reverse Osmosis

$195-220

Why this fits Washington DC

Removes 99%+ of PFAS detected in Washington DC's water
Eliminates chlorine taste and odor from Washington DC's water
NSF/ANSI 58 certified

Pros & Cons +

5-stage filtration removes 99%+ of contaminants

Long-lasting filters (6-12 month replacement)

Requires under-sink installation

Wastes some water during filtration

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Best Value

Waterdrop 10UA Under-Sink Filter

Under-Sink Carbon Filter

$40-60

Why this fits Washington DC

Eliminates chlorine taste and odor from Washington DC's water
NSF/ANSI 42 certified
Budget-friendly at $40-60

Pros & Cons +

Very affordable

Easy DIY install no plumber

Does not remove PFAS or hardness

Single point of use only

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As an Amazon Associate, PurityMap may earn from qualifying purchases. Based on latest Washington DC water data.

Full Filter Comparison for Washington DC

Know exactly what's in YOUR tap

City data shows averages. Your home may differ.

Test Your Water — $25-30

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Washington DC Water FAQ

Is Washington DC DC tap water safe to drink in 2026?

Washington DC tap water meets EPA federal drinking water standards and scores 67/100 (Moderate) on PurityMap for 2026. PFAS forever chemicals have been detected at 2.8 ppt. An NSF-certified filter is strongly recommended. For most healthy adults the water is considered safe but point-of-use filtration adds an important layer of protection.

Does Washington DC DC use chlorine or chloramine for disinfection?

Washington DC uses chloramine as the primary disinfectant with a residual level of 1.5 ppm. Chloramine is harder to remove than free chlorine and requires a catalytic carbon or reverse osmosis filter. Standard Brita-style pitchers will NOT remove chloramine.

How hard is Washington DC DC water and what is the TDS level?

Washington DC water hardness is 3.5 grains per gallon (soft) with a TDS of 120 ppm (good). This level is unlikely to cause significant scale buildup in household plumbing.

Has PFAS been found in Washington DC DC drinking water?

Yes. PFAS forever chemicals have been detected in Washington DC water at approximately 2.8 ppt according to EPA UCMR5 monitoring data. A reverse osmosis or NSF P473-certified filter is the most effective residential solution.

Nearby Reports

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Data Sources

EPA SDWIS
EWG Tap Water Database
DC Water CCR
USGS monitoring data

PurityMap compiles public data. Updated March 2026.

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