[
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Alaska",
    "state_abbreviation": "AK",
    "geography_name": "Prince of Wales-Outer Ketchikan Census Area",
    "geoid": "",
    "epa_radon_zone": "3",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Alaska",
    "state_abbreviation": "AK",
    "geography_name": "Valdez-Cordova Census Area",
    "geoid": "",
    "epa_radon_zone": "3",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Alaska",
    "state_abbreviation": "AK",
    "geography_name": "Wade Hampton Census Area",
    "geoid": "",
    "epa_radon_zone": "3",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Alaska",
    "state_abbreviation": "AK",
    "geography_name": "Wrangell-Petersburg Census Area",
    "geoid": "",
    "epa_radon_zone": "3",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Fairfield County",
    "geoid": "",
    "epa_radon_zone": "1",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Hartford County",
    "geoid": "",
    "epa_radon_zone": "3",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Litchfield County",
    "geoid": "",
    "epa_radon_zone": "2",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Middlesex County",
    "geoid": "",
    "epa_radon_zone": "1",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "New Haven County",
    "geoid": "",
    "epa_radon_zone": "1",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "New London County",
    "geoid": "",
    "epa_radon_zone": "1",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Tolland County",
    "geoid": "",
    "epa_radon_zone": "2",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Windham County",
    "geoid": "",
    "epa_radon_zone": "2",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Montana",
    "state_abbreviation": "MT",
    "geography_name": "Yellowstone National Park, MT",
    "geoid": "",
    "epa_radon_zone": "1",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "South Dakota",
    "state_abbreviation": "SD",
    "geography_name": "Shannon County",
    "geoid": "",
    "epa_radon_zone": "2",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Virginia",
    "state_abbreviation": "VA",
    "geography_name": "Bedford city",
    "geoid": "",
    "epa_radon_zone": "1",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Virginia",
    "state_abbreviation": "VA",
    "geography_name": "Clifton Forge city",
    "geoid": "",
    "epa_radon_zone": "1",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "EPA source geography without direct 2025 Census name match",
    "state_name": "Virginia",
    "state_abbreviation": "VA",
    "geography_name": "South Boston city",
    "geoid": "",
    "epa_radon_zone": "3",
    "status": "legacy_or_unmatched",
    "handling": "EPA label and zone preserved; no current Census GEOID assigned and no zone reallocated.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Alaska",
    "state_abbreviation": "AK",
    "geography_name": "Chugach Census Area",
    "geoid": "02063",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Alaska",
    "state_abbreviation": "AK",
    "geography_name": "Copper River Census Area",
    "geoid": "02066",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Alaska",
    "state_abbreviation": "AK",
    "geography_name": "Hoonah-Angoon Census Area",
    "geoid": "02105",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Alaska",
    "state_abbreviation": "AK",
    "geography_name": "Kusilvak Census Area",
    "geoid": "02158",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Alaska",
    "state_abbreviation": "AK",
    "geography_name": "Petersburg Borough",
    "geoid": "02195",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Alaska",
    "state_abbreviation": "AK",
    "geography_name": "Prince of Wales-Hyder Census Area",
    "geoid": "02198",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Alaska",
    "state_abbreviation": "AK",
    "geography_name": "Wrangell City and Borough",
    "geoid": "02275",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Capitol Planning Region",
    "geoid": "09110",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Greater Bridgeport Planning Region",
    "geoid": "09120",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Lower Connecticut River Valley Planning Region",
    "geoid": "09130",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Naugatuck Valley Planning Region",
    "geoid": "09140",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Northeastern Connecticut Planning Region",
    "geoid": "09150",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Northwest Hills Planning Region",
    "geoid": "09160",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "South Central Connecticut Planning Region",
    "geoid": "09170",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Southeastern Connecticut Planning Region",
    "geoid": "09180",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "Connecticut",
    "state_abbreviation": "CT",
    "geography_name": "Western Connecticut Planning Region",
    "geoid": "09190",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  },
  {
    "dataset_version": "2026-07-24.1",
    "audit_side": "2025 Census geography without direct EPA source-name match",
    "state_name": "South Dakota",
    "state_abbreviation": "SD",
    "geography_name": "Oglala Lakota County",
    "geoid": "46102",
    "epa_radon_zone": "",
    "status": "no_direct_epa_name_match",
    "handling": "No EPA zone assigned by name; any relationship to a legacy source geography requires documented boundary/rename research.",
    "verification_date": "2026-07-24",
    "epa_source_url": "https://www.epa.gov/radon/epa-map-radon-zones-0",
    "census_source_url": "https://www.census.gov/geographies/reference-files/time-series/geo/county-adjacency.2025.html"
  }
]