1
Hard water (12.2 gpg) can cause scale buildup in pipes and appliances but is generally safe to drink.
2
Chlorine levels are within EPA limits but may affect taste and smell.

Current Score

73 / 100

Moderate

"Good" threshold (70)

Surprise tap water is sourced from Colorado River and groundwater and treated by City of Surprise Water. Water hardness is very hard at 12.2 GPG which may cause scale buildup. TDS is 505 ppm which is above the EPA secondary guideline of 500 ppm. Overall purity score: 73/100 (Moderate). Updated for 2026.

Need a Filter?

We've matched the best filters for Surprise's specific water issues.

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The Best Water Filter For Surprise Homes

Matched to local water issues and filtration standards.

Best for Surprise

iSpring WGB32B 3-Stage Whole House

Whole-House Carbon Filter

Price Range $230–270

Top Pick for Surprise

iSpring WGB32B 3-Stage Whole House

Surprise has very hard water (12.2 GPG) and elevated chlorine. A whole-house carbon plus softener system handles both.

Why this fits Surprise

Reduces hardness from 12.2 GPG to soft water
Whole-house chlorine and chloramine removal
Protects all appliances pipes and water heaters

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As an Amazon Associate, PurityMap may earn from qualifying purchases. Prices may vary.

Also Recommended

AFWFilters 5600sxt 48,000 Grain Softener

Salt-Based Water Softener — $650–750

Buy on Amazon

Want to know exactly what's in YOUR tap?

City reports show averages. Your home may be different — especially with older pipes.

Buy Test Kit on Amazon ($25–30)

Frequently Asked Questions

Is Surprise AZ tap water safe to drink in 2026?

Surprise tap water meets EPA federal drinking water standards and scores 73/100 (Moderate) 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 Surprise AZ use chlorine or chloramine for disinfection?

Surprise uses chloramine as the primary disinfectant with a residual level of 1.4 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 Surprise AZ water and what is the TDS level?

Surprise water hardness is 12.2 grains per gallon (very hard) with a TDS of 505 ppm (unacceptable). 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 Surprise AZ drinking water?

Based on available EPA UCMR5 monitoring data as of 2026 PFAS have not been detected above EPA advisory levels in Surprise drinking water.