Is Hillsboro tap water safe to drink?

Yes with good quality

Hillsboro's tap water meets all EPA standards and scores well on our analysis. It is generally safe to drink though filtration can improve taste and provide extra precaution.

85/100
Purity Score
1
Issues Found
1.5 GPG
Hardness
Not detected
PFAS

1 Issue Detected in Hillsboro

Arsenic Approaching Limit (0.1 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Hillsboro
Oregon

971,239,712,497,133 · Tualatin Valley Water District

Water Quality in Hillsboro, OR (2026)

Low Risk Updated March 2026 106,633 residents
See Best Filters for Hillsboro
85
Purity Score

This 2026 water quality report for Hillsboro compiles data from EPA SDWIS, EWG testing records, and the Hillsboro Water Department consumer confidence report. Scores, contaminant levels, and matched filter recommendations are below.

Contaminant Levels

PFAS
ND
Lead
1.5 ppb
Nitrate
0.3 mg/L
Arsenic
0.1 mg/L
Hardness
1.5 gpg

Health Insights

  • 1
    Hillsboro's water meets current EPA standards. Filtration can improve taste and provide extra safety.

Score

85 /100
Excellent
"Good" threshold (70)

Hillsboro tap water is sourced from Tualatin Valley Water District and treated by Hillsboro Water Department. Overall purity score: 85/100 (Excellent). Updated for 2026.

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Best filters matched to Hillsboro's 1 issue.

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Explore Hillsboro Water Data

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Hillsboro Water FAQ

Is Hillsboro OR tap water safe to drink in 2026?
Hillsboro tap water meets EPA federal drinking water standards and scores 85/100 (Excellent) on PurityMap for 2026. For most healthy adults the water is considered safe but point-of-use filtration adds an important layer of protection.
Does Hillsboro OR use chlorine or chloramine for disinfection?
Hillsboro uses chloramine as the primary disinfectant with a residual level of 0.9 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 Hillsboro OR water and what is the TDS level?
Hillsboro water hardness is 1.5 grains per gallon (soft) with a TDS of 40 ppm (excellent). This level is unlikely to cause significant scale buildup in household plumbing.
Has PFAS been found in Hillsboro OR drinking water?
Based on available EPA UCMR5 monitoring data as of 2026 PFAS have not been detected above EPA advisory levels in Hillsboro drinking water.
What is the best water filter for Hillsboro?
Based on Hillsboro's water profile, we recommend the Clearly Filtered Water Pitcher. Hillsboro water scores well overall. A pitcher filter provides extra precaution and improves taste for drinking and cooking.

Nearby Reports

PortlandOregon — 85/100EugeneOregon — 85/100SalemOregon — 85/100GreshamOregon — 85/100BendOregon — 85/100MedfordOregon — 85/100

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Data Sources

  • EPA SDWIS
  • EWG Tap Water Database
  • Hillsboro Water Department CCR
  • USGS monitoring data

PurityMap compiles public data. Updated March 2026.

© 2026 PurityMap. For informational purposes only.

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