{
  "schema_id": "la.archive.hydrozone.v1",
  "schema_version": 1,
  "pack_id": "hydro-ex-001",
  "created_at": "2026-07-26T00:00:00.000Z",
  "hydrozone": {
    "zone_id": "hz-public-lawn-a",
    "irrigation_method": "spray",
    "water_source": "municipal",
    "water_budget": {
      "annual_mm": 420,
      "source_note": "Derived from local ET reference and species mix"
    }
  },
  "tla185_refs": {
    "record_id": null,
    "field_paths": ["climate.water_demand", "site.irrigation_zone"]
  }
}