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Phoenix, AZ Water Quality
Phoenix has some of the hardest municipal water in the US — ~16 gpg (260 ppm). Colorado River and Salt River sources deliver extremely hard, mineral-rich water that costs the average household over $1,300/year in damage.
Read Phoenix Report →~16 gpg
260 ppm
Extremely Hard
City Water Quality Guides
In-depth guides with hardness data, contaminant levels, EPA report summaries, and tailored filter recommendations.
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Atlanta, GA Water Quality 2026: Hardness, Contaminants & Filters
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Austin, TX Water Quality 2026: Hardness, Contaminants & Filters
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Charlotte, NC Water Quality 2026: Hardness, Contaminants & Best Filters
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Chicago, IL Water Quality 2026: Hardness, Contaminants & Filters
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Dallas, TX Water Quality 2026: Hardness, Contaminants & Filters
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Denver, CO Water Quality 2026: Hardness, Contaminants & Filters
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Houston, TX Water Quality 2026: Hardness, Contaminants & Filters
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Indianapolis, IN Water Quality 2026: Hardness, Contaminants & Filters
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Jacksonville, FL Water Quality 2026: Hardness, Contaminants & Best Filters
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Las Vegas, NV Water Quality 2026: Hardness, Contaminants & Filters
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Los Angeles, CA Water Quality 2026: Hardness, Contaminants & Filters
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Miami, FL Water Quality 2026: Hardness, Contaminants & Filters
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Minneapolis, MN Water Quality 2026: Hardness, Contaminants & Filters
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New York, NY Water Quality 2026: Hardness, Contaminants & Filters
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Phoenix, AZ Water Quality 2026: Hardness, Contaminants & Filters
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Portland, OR Water Quality 2026: Hardness, Contaminants & Filters
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San Antonio, TX Water Quality 2026: Hardness, Contaminants & Filters
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San Diego, CA Water Quality 2026: Hardness, Contaminants & Filters
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Scottsdale, AZ Water Quality 2026: Hardness, Contaminants & Filters
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Seattle, WA Water Quality 2026: Hardness, Contaminants & Filters
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Tampa, FL Water Quality 2026: Hardness, Contaminants & Filters
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Tucson, AZ Water Quality 2026: Hardness, Contaminants & Filters
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Water Hardness Data by City
Detailed hardness data, cost calculators, and treatment recommendations for hundreds of US and Canadian cities.
Browse the full water hardness database — 400+ US & Canadian cities
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