{
  "method": "One residential assessor parcel with housing units > 0 and valid year 1800-2026, joined to a county address point inside the official city polygon. Prefer primary address then lowest county object ID. Point-in-polygon overlay of Utah 2024-reporting-year culinary service areas. ZIP means address ZIP within the city, not whole ZIP. Not dwelling/customer counts or observed pipe materials.",
  "analysis_date": "2026-09-10",
  "tax_years": {
    "2025": 9658
  },
  "city_address_points": 11376,
  "matched_assessor_parcels": 10061,
  "invalid_residential_years": 1,
  "all": {
    "records": 9658,
    "median_year": 1978.0,
    "from1990to2009": 1753,
    "before2005": 9395,
    "before1980": 6277,
    "before1986": 7042,
    "decades": {
      "1940": 2,
      "1950": 3537,
      "1960": 65,
      "1970": 2673,
      "1980": 1440,
      "1990": 1130,
      "2000": 623,
      "2010": 40,
      "2020": 148
    }
  },
  "overlap": 0,
  "unmatched": 0,
  "providers": {
    "Kearns Improvement District": {
      "records": 8414,
      "median_year": 1978.0
    },
    "Taylorsville-Bennion Improvement District": {
      "records": 1244,
      "median_year": 1978.0
    }
  },
  "sources": [
    {
      "dataset": "slco-parcel-owners.ndjson",
      "sha256": "d970d9aa0c85e6664637ee5046495c42ed0985aa36afe5a540a8b71876ef3de0"
    },
    {
      "dataset": "features.arcgis.ndjson",
      "sha256": "2fb8a47f1c8cfe8c6745e0898baf29f413cd7d3c7e8afce35b63c763f881e1ad"
    },
    {
      "dataset": "features.geojson",
      "sha256": "b7862cb103e1e911864826dc9f75d5327d1e16b2697c0a5b687ff2dc3a884086"
    },
    {
      "dataset": "ugrc_culinary_water_service_areas_slco.features.arcgis.ndjson",
      "sha256": "75854de6965161fac9f7f55347d143e515753149919ef10d81ddd958464d82c1"
    }
  ]
}