Is Dallas tap water safe to drink?

Yes but with caveats

Dallas's water meets EPA minimum standards but has some concerns including PFAS detected. Filtration is recommended for sensitive individuals.

64/100
Purity Score
4
Issues Found
7.9 GPG
Hardness
Detected
PFAS

4 Issues Detected in Dallas

PFAS (Forever Chemicals) Detected

PFAS are man-made chemicals that do not break down and accumulate in the body.

PFAS details for Dallas

Moderately Hard Water (7.9 GPG)

Hardness above 7 GPG can cause minor scale buildup.

Hardness data for Dallas

Moderate Chlorine Level

Chlorine within EPA limits but may affect taste.

Chlorine info for Dallas

Arsenic Approaching Limit (0.4 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Dallas
Texas

752,017,520,275,203 · Elm Fork Trinity River Lake Lewisville

Forever Chemicals in Dallas Drinking Water

Elevated Risk Updated March 2026 1.3M residents
See Best Filters for Dallas
64
Purity Score

Recent testing detected PFAS in Dallas tap water. Below you'll find contaminant data, an overall purity score, and matched filter recommendations based on Dallas's specific water profile.

Contaminant Levels

PFAS
2.1 ppt
Lead
3.5 ppb
Nitrate
0.8 mg/L
Arsenic
0.4 mg/L
Hardness
7.9 gpg

Health Insights

  • 1
    With a hardness of 7.9 GPG, Dallas residents may notice white scale on faucets. Hard water increases maintenance costs.
  • 2
    PFAS have been identified in Dallas's water at 2.1 parts per trillion. A reverse osmosis system is the most reliable home treatment.
  • 3
    Chlorine levels may affect the taste of Dallas's tap water. A carbon filter improves flavor.

Score

64 /100
Moderate
"Good" threshold (70)

Dallas tap water is sourced from Elm Fork Trinity River Lake Lewisville and treated by Dallas Water Utilities. PFAS forever chemicals have been detected. Water hardness is hard at 7.9 GPG which may cause scale buildup. Overall purity score: 64/100 (Moderate). Updated for 2026.

Fix Your Water

Best filters matched to Dallas's 4 issues.

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About Dallas's Water

Understanding PFAS in Dallas's Water Supply

PFAS (per- and polyfluoroalkyl substances) are a class of synthetic chemicals used in industrial and consumer products since the 1940s. Testing identified PFAS compounds in Dallas's water at 2.1 parts per trillion. These chemicals resist breakdown in the environment and the human body, which is why they're sometimes called forever chemicals. The EPA has established health advisories for several PFAS compounds. A certified reverse osmosis system removes 99% or more of PFAS from drinking water and is currently the most reliable home treatment option.

Hard Water in Dallas: Impact on Plumbing and Appliances

At 7.9 grains per gallon, Dallas's water qualifies as hard. Hard water carries dissolved calcium and magnesium that deposit as limescale inside pipes, water heaters, dishwashers, and washing machines over time. Scale accumulation reduces appliance efficiency and shortens service life. A salt-based water softener is the most effective solution for whole-home protection. For drinking water only, a reverse osmosis system also reduces mineral content significantly.

Explore Dallas Water Data

PFAS in DallasForever chemicals
Lead in DallasLead risk
Dallas Hard WaterHardness data
Best FiltersFull comparison
TexasState rankings

Dallas Water FAQ

Is Dallas TX tap water safe to drink in 2026?
Dallas tap water meets EPA federal drinking water standards and scores 64/100 (Moderate) on PurityMap for 2026. PFAS forever chemicals have been detected at 2.1 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 Dallas TX use chlorine or chloramine for disinfection?
Dallas 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 Dallas TX water and what is the TDS level?
Dallas water hardness is 7.9 grains per gallon (hard) with a TDS of 280 ppm (fair). This level causes noticeable scale buildup in water heaters kettles and dishwashers. A water softener is recommended to protect plumbing and reduce soap usage.
Has PFAS been found in Dallas TX drinking water?
Yes. PFAS forever chemicals have been detected in Dallas water at approximately 2.1 ppt according to EPA UCMR5 monitoring data. A reverse osmosis or NSF P473-certified filter is the most effective residential solution.
What is the best water filter for Dallas?
Based on Dallas's water profile, we recommend the Clearly Filtered Water Pitcher. Dallas: PFAS detected or elevated lead risk. Reverse osmosis is the only residential technology proven to reduce both below detection limits. TDS will also drop significantly.

Nearby Reports

HoustonTexas — 59/100College StationTexas — 69/100LubbockTexas — 71/100AmarilloTexas — 73/100San AntonioTexas — 73/100MidlandTexas — 73/100

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Data Sources

  • EPA SDWIS
  • EWG Tap Water Database
  • Dallas Water Utilities CCR
  • USGS monitoring data

PurityMap compiles public data. Updated March 2026.

© 2026 PurityMap. For informational purposes only.

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