{
  "city": "Chandler",
  "state": "AZ",
  "slug": "chandler",
  "hardness_facts": [
    {
      "utility": "City of Chandler",
      "measure": "Total hardness",
      "value_as_published": "173-288 mg/L (10.1-16.8 grains per gallon)",
      "period": "Calendar year 2025",
      "source_title": "Chandler 2025 Drinking Water Quality Consumer Confidence Report",
      "source_url": "https://www.chandleraz.gov/sites/default/files/departments/water/City-of-Chandler-2025-Drinking-Water-Quality-Consumer-Confidence-Report.pdf"
    }
  ],
  "published_span_mg_per_l": [
    173,
    288
  ],
  "span_converted_from_grains": false,
  "usgs_class": "hard to very hard",
  "usgs_class_source": "https://www.usgs.gov/water-science-school/science/hardness-water",
  "notes": [
    "Chandler disinfects with chlorine. Its 2025 residual averaged 0.93 ppm.",
    "Chandler's undated water quality FAQ gives a different figure: an average of 16.5 grains per gallon within a range of 5 to 20."
  ],
  "local_details": {
    "disinfectant": {
      "text": "Chandler disinfects its water with chlorine before it enters the city pipes.",
      "kind": "chlorine",
      "source_title": "Chandler 2025 Drinking Water Quality Consumer Confidence Report",
      "source_url": "https://www.chandleraz.gov/sites/default/files/departments/water/City-of-Chandler-2025-Drinking-Water-Quality-Consumer-Confidence-Report.pdf",
      "evidence_ids": [
        "CHANDL-L-01"
      ]
    },
    "source_water": {
      "text": "Chandler treats Salt, Verde and Colorado River water at its Pecos and Santan Vista plants and pumped groundwater from 27 wells in 2025.",
      "source_title": "Chandler 2025 Drinking Water Quality Consumer Confidence Report",
      "source_url": "https://www.chandleraz.gov/sites/default/files/departments/water/City-of-Chandler-2025-Drinking-Water-Quality-Consumer-Confidence-Report.pdf",
      "evidence_ids": [
        "CHANDL-L-02"
      ]
    },
    "seasonal": {
      "text": "Chandler says the flavor of its water can change at certain times of the year, depending on the source.",
      "source_title": "Chandler 2025 Drinking Water Quality Consumer Confidence Report",
      "source_url": "https://www.chandleraz.gov/sites/default/files/departments/water/City-of-Chandler-2025-Drinking-Water-Quality-Consumer-Confidence-Report.pdf",
      "evidence_ids": [
        "CHANDL-L-03"
      ]
    }
  },
  "sources_checked_on": "2026-10-26",
  "site": "https://chandlerwatersystems.com/",
  "brand": "Chandler Water Systems by My Home Water System",
  "taking_requests": true
}