How hard is the water in Peoria?

Peoria has the most dramatic hardness variation in the Phoenix metro—ranging from just 2 GPG (soft!) to 17 GPG (very hard) depending entirely on which source feeds your neighborhood. This makes knowing your specific pressure zone critical.

Why does Peoria water hardness vary so much?

Peoria's water comes from two treatment plants and groundwater wells with vastly different characteristics. The Pyramid Peak WTP produces hard water (~17 GPG), the Greenway WTP produces moderately hard water (~13 GPG), but surprisingly, Peoria's groundwater wells produce some of the softest water in the region (2-8 GPG).

Do I need a water softener in Peoria?

It depends entirely on your zone. If you're on Pyramid Peak water (17 GPG), you definitely need a softener. If you're on Greenway water (13 GPG), a softener is recommended. If you're on well water (2-8 GPG), you might not need one at all. Test your water first.

Where does Peoria get its water?

Peoria Water Services operates two surface water treatment plants (Greenway WTP and Pyramid Peak WTP) plus groundwater wells. The blend varies by your location within the city's pressure zone system.

Is Peoria water safe to drink?

Yes, Peoria water is safe to drink regardless of which source serves you. All sources meet EPA and state safety standards. The hardness variation is an aesthetic/practical difference, not a safety concern.

How do I find out which zone I'm in?

Contact Peoria Water Services directly or check their pressure zone map. Your water bill may also indicate your service area. Testing your water is the most reliable way to know your exact hardness level.

Water Hardness in Peoria, AZ - 13 GPG (222 PPM)

What This Means For You

Peoria is unique—it has the widest hardness range of any Phoenix metro city. Your water could be soft (2 GPG) or very hard (17 GPG) depending entirely on which source feeds your home.

Peoria presents the most dramatic hardness variance in the Phoenix metro area. The Greenway WTP delivers moderately hard water (~13 GPG), while Pyramid Peak WTP delivers harder water (~17 GPG). Surprisingly, Peoria's groundwater wells produce some of the softest water in the region (2-8 GPG). Residents must verify their specific pressure zone.

Key insight: Unlike most Phoenix metro cities where groundwater is harder than surface water, Peoria's wells produce remarkably soft water. If you're on well water in Peoria, you may be among the lucky few in the Valley who don't need a softener.

Water Hardness in Peoria, Arizona

What This Means For You

Hardness by Source

Frequently Asked Questions

Official Source