Is Centennial tap water safe to drink?

Yes with good quality

Centennial'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
2.4 GPG
Hardness
Not detected
PFAS

1 Issue Detected in Centennial

Arsenic Approaching Limit (0.1 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Centennial
Colorado

800,158,011,180,112 · South Platte River

Water Quality in Centennial, CO (2026)

Low Risk Updated March 2026 110,250 residents
See Best Filters for Centennial
85
Purity Score

This report analyzes Centennial's tap water across five key indicators: PFAS, lead, hardness, chlorine, and TDS. Each section links to deeper data and filter options suited to CO water conditions.

Contaminant Levels

PFAS
ND
Lead
1.8 ppb
Nitrate
0.4 mg/L
Arsenic
0.1 mg/L
Hardness
2.4 gpg

Health Insights

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

Score

85 /100
Excellent
"Good" threshold (70)

Centennial tap water is sourced from South Platte River and treated by South Platte Water Renewal Partners. Overall purity score: 85/100 (Excellent). Updated for 2026.

Fix Your Water

Best filters matched to Centennial's 1 issue.

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Explore Centennial Water Data

PFAS Levels in CentennialPFAS testing data
Centennial Lead LevelsLead testing data
Water Hardness in CentennialHardness levels
Best FiltersFull comparison
ColoradoState rankings

Centennial Water FAQ

Is Centennial CO tap water safe to drink in 2026?
Centennial 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 Centennial CO use chlorine or chloramine for disinfection?
Centennial 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 Centennial CO water and what is the TDS level?
Centennial water hardness is 2.4 grains per gallon (soft) with a TDS of 65 ppm (good). This level is unlikely to cause significant scale buildup in household plumbing.
Has PFAS been found in Centennial CO drinking water?
Based on available EPA UCMR5 monitoring data as of 2026 PFAS have not been detected above EPA advisory levels in Centennial drinking water.
What is the best water filter for Centennial?
Based on Centennial's water profile, we recommend the Clearly Filtered Water Pitcher. Centennial water scores well overall. A pitcher filter provides extra precaution and improves taste for drinking and cooking.

Nearby Reports

Colorado SpringsColorado — 70/100PuebloColorado — 82/100GreeleyColorado — 85/100DenverColorado — 85/100AuroraColorado — 85/100Fort CollinsColorado — 85/100

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Data Sources

  • EPA SDWIS
  • EWG Tap Water Database
  • South Platte Water Renewal Partners CCR
  • USGS monitoring data

PurityMap compiles public data. Updated March 2026.

© 2026 PurityMap. For informational purposes only.

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