Is Pearl City tap water safe to drink?

Yes with good quality

Pearl City'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
3.2 GPG
Hardness
Not detected
PFAS

1 Issue Detected in Pearl City

Arsenic Approaching Limit (0.1 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Pearl City
Hawaii

967,829,678,996,797 · Groundwater

Pearl City, HI: Water Quality and Filter Guide

Low Risk Updated March 2026 47,698 residents
See Best Filters for Pearl City
85
Purity Score

Water quality in Pearl City, Hawaii is evaluated here using public utility data and independent testing. The report includes a purity score, contaminant breakdown, and tailored filter recommendations.

Contaminant Levels

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

Health Insights

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

Score

85 /100
Excellent
"Good" threshold (70)

Pearl City tap water is sourced from Groundwater and treated by Honolulu Board of Water Supply. Overall purity score: 85/100 (Excellent). Updated for 2026.

Fix Your Water

Best filters matched to Pearl City's 1 issue.

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Explore Pearl City Water Data

Forever Chemicals in Pearl CityPFAS water report
Lead Risk in Pearl CityLead water report
Pearl City Hardness ReportScale and minerals
Best FiltersFull comparison
HawaiiState rankings

Pearl City Water FAQ

Is Pearl City HI tap water safe to drink in 2026?
Pearl City 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 Pearl City HI use chlorine or chloramine for disinfection?
Pearl City uses chloramine as the primary disinfectant with a residual level of 0.8 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 Pearl City HI water and what is the TDS level?
Pearl City water hardness is 3.2 grains per gallon (soft) with a TDS of 140 ppm (good). This level is unlikely to cause significant scale buildup in household plumbing.
Has PFAS been found in Pearl City HI drinking water?
Based on available EPA UCMR5 monitoring data as of 2026 PFAS have not been detected above EPA advisory levels in Pearl City drinking water.
What is the best water filter for Pearl City?
Based on Pearl City's water profile, we recommend the Clearly Filtered Water Pitcher. Pearl City water scores well overall. A pitcher filter provides extra precaution and improves taste for drinking and cooking.

Nearby Reports

HonoluluHawaii — 85/100HiloHawaii — 85/100KailuaHawaii — 85/100

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Data Sources

  • EPA SDWIS
  • EWG Tap Water Database
  • Honolulu Board of Water Supply CCR
  • USGS monitoring data

PurityMap compiles public data. Updated March 2026.

© 2026 PurityMap. For informational purposes only.

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