Water Quality in Arizona
Water hardness and contaminant data for 17 cities across Arizona. Find your city below to see a detailed water quality profile.
17
Cities
264
Avg Hardness (PPM)
300
Hardest City (PPM)
Arizona Cities by Water Hardness
| City | Hardness (PPM) | Level | PFAS (ppt) | Source |
|---|---|---|---|---|
| Mesa | 300 | Extremely Hard | 6 | Groundwater + SRP canal |
| Chandler | 300 | Extremely Hard | 6 | SRP, CAP, groundwater |
| Tempe | 299 | Extremely Hard | 6 | SRP, CAP, groundwater |
| Glendale | 294 | Extremely Hard | 7 | SRP, CAP, groundwater |
| Goodyear | 291 | Extremely Hard | 6 | CAP Canal, groundwater |
| Maricopa | 291 | Extremely Hard | 5 | Groundwater |
| Tucson | 288 | Extremely Hard | 7 | CAP, groundwater |
| Avondale | 288 | Extremely Hard | 5 | Groundwater, CAP Canal |
| Casa Grande | 285 | Extremely Hard | 6 | Groundwater wells |
| Gilbert | 277 | Extremely Hard | 4 | SRP, groundwater |
| Lake Havasu City | 270 | Extremely Hard | 6 | Lake Havasu (Colorado River) |
| Yuma | 264 | Extremely Hard | 5 | Colorado River |
| Surprise | 258 | Extremely Hard | 5 | CAP, groundwater |
| Scottsdale | 250 | Extremely Hard | 4 | SRP, CAP, groundwater |
| Peoria | 235 | Very Hard | 5 | SRP, CAP, groundwater |
| Phoenix | 220 | Very Hard | 8 | Surface + Groundwater |
| Flagstaff | 70 | Moderately Hard | 3 | Upper Lake Mary, groundwater |