{
  "$schema": "https://welldot.org/schema/v2/well.schema.json",
  "version": "2.4",
  "x-welldot-example": {
    "illustrative": true,
    "based_on": "https://siagasweb.sgb.gov.br/layout/detalhe.php?ponto=3100003295"
  },
  "well_type": "tubular",
  "well_purpose": [
    "production"
  ],
  "name": "Poço PI-02 — Unidade industrial (Sete Lagoas/MG)",
  "well_driller": "Cárstica Poços Artesianos Ltda.",
  "construction_date": "1989-09-12",
  "obs": "Poço industrial em calcário da Formação Sete Lagoas (Grupo Bambuí), aquífero cárstico confinado sob argila. Revestido até 28,5 m; abaixo, poço aberto em calcário. Parado desde 1991 e tamponado em 2021 após inspeção com câmera.",
  "well_id": [
    {
      "authority": "Empresa",
      "id": "PI-02",
      "primary": true
    },
    {
      "authority": "IGAM",
      "id": "Cadastro 1998/004410"
    }
  ],
  "location": {
    "lat": -19.46861,
    "lng": -44.29556,
    "elevation": 765,
    "properties": {
      "timezone": "America/Sao_Paulo",
      "crs": "EPSG:4326",
      "lat_precision": 0.0003,
      "lng_precision": 0.0003,
      "elevation_datum": "x-imbituba",
      "elevation_precision": 5,
      "original_crs": "EPSG:31983"
    }
  },
  "well_depth": 218,
  "bore_hole": [
    {
      "from": 0,
      "to": 28.5,
      "diameter": 305,
      "drilling_method": "rotary"
    },
    {
      "from": 28.5,
      "to": 90,
      "diameter": 203,
      "drilling_method": "air_hammer"
    },
    {
      "from": 90,
      "to": 218,
      "diameter": 152,
      "drilling_method": "air_hammer"
    }
  ],
  "well_case": [
    {
      "from": 0,
      "to": 28.5,
      "type": "carbon_steel",
      "diameter": 219
    }
  ],
  "reduction": [],
  "well_screen": [],
  "surface_case": [],
  "hole_fill": [
    {
      "from": 0,
      "to": 10,
      "type": "seal",
      "diameter": 305,
      "description": "Cimentação do espaço anular"
    }
  ],
  "lithology": [
    {
      "from": 0,
      "to": 25,
      "description": "Argila amarela",
      "color": "#d9a441",
      "texture": {
        "code": 620,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Cobertura argilosa",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 25,
      "to": 28,
      "description": "Rocha carbonática intemperizada e decomposta",
      "color": "#b9a27c",
      "texture": {
        "code": 623,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Sete Lagoas (Grupo Bambuí)",
      "aquifer_unit": "Aquífero cárstico Sete Lagoas"
    },
    {
      "from": 28,
      "to": 90,
      "description": "Calcário cinza-azulado",
      "color": "#7d8b99",
      "texture": {
        "code": 627,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Sete Lagoas (Grupo Bambuí)",
      "aquifer_unit": "Aquífero cárstico Sete Lagoas"
    },
    {
      "from": 90,
      "to": 200,
      "description": "Calcário cinza-esbranquiçado",
      "color": "#b9bec4",
      "texture": {
        "code": 627,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Sete Lagoas (Grupo Bambuí)",
      "aquifer_unit": "Aquífero cárstico Sete Lagoas"
    },
    {
      "from": 200,
      "to": 218,
      "description": "Calcário cinza-azulado",
      "color": "#7d8b99",
      "texture": {
        "code": 627,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Sete Lagoas (Grupo Bambuí)",
      "aquifer_unit": "Aquífero cárstico Sete Lagoas"
    }
  ],
  "fractures": [
    {
      "depth": 142,
      "depth_precision": 1,
      "water_intake": true,
      "description": "Fratura alargada por dissolução",
      "swarm": false,
      "azimuth": 160,
      "dip": 80
    }
  ],
  "caves": [
    {
      "from": 61,
      "to": 63.5,
      "water_intake": true,
      "description": "Cavidade cárstica: queda livre da haste e perda total de circulação; entrada d'água principal."
    }
  ],
  "hydrodynamic_events": [
    {
      "id": "evt-01",
      "type": "constant_rate",
      "datetime": "1989-09-12T08:00:00-03:00",
      "operator": "Cárstica Poços Artesianos Ltda.",
      "static_level": 60,
      "notes": "Ficha antiga: só o nível estático, o nível dinâmico final e a vazão foram registrados.",
      "steps": [
        {
          "rate": 10,
          "duration": 1440,
          "readings": [
            {
              "elapsed": 1440,
              "depth": 92
            }
          ]
        }
      ]
    },
    {
      "id": "evt-02",
      "type": "spot_measurement",
      "datetime": "2020-08-18T10:00:00-03:00",
      "operator": "Consultoria Hidrogeológica Bambuí",
      "static_level": 68.4,
      "static_level_precision": 0.01,
      "measurement_method": "electric_probe",
      "notes": "Poço parado há décadas; rebaixamento regional do aquífero cárstico na área urbana."
    }
  ],
  "cement_pad": {
    "type": "concrete",
    "width": 1,
    "thickness": 0.15,
    "length": 1
  },
  "aquifer_analysis": [
    {
      "id": "an-1989",
      "datetime": "1989-09-14T10:00:00-03:00",
      "source_event_ids": [
        "evt-01"
      ],
      "method": "x-specific_capacity",
      "static_level": 60,
      "static_level_source_id": "evt-01",
      "dynamic_level": 92,
      "flow_rate": 10,
      "specific_capacity": 0.313,
      "notes": "Só capacidade específica; sem leituras para análise de Jacob."
    }
  ],
  "pump_installations": [
    {
      "id": "pump-1989",
      "installed_at": "1989-10-02T09:00:00-03:00",
      "removed_at": "2019-11-05T09:00:00-03:00",
      "type": "submersible",
      "power_source": "grid",
      "manufacturer": "KSB",
      "model": "UPA 150C-11",
      "intake_depth": 110,
      "rated_flow_rate": 10,
      "rated_power": 7.5,
      "riser_diameter": 50,
      "riser_material": "galvanized_steel",
      "notes": "Abandonada no poço após a parada de 1991; retirada em 2019 para a inspeção."
    }
  ],
  "water_samples": [
    {
      "id": "am-1989",
      "datetime": "1989-09-12T16:00:00-03:00",
      "sample_type": "routine",
      "sampling_method": "pump_discharge",
      "sampling_point": {
        "type": "pump_discharge"
      },
      "results": [
        {
          "parameter": {
            "code": "specific_conductance",
            "vocabulary": "welldot"
          },
          "value": 357,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "apparent_color",
            "vocabulary": "welldot"
          },
          "value": 7.5,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "turbidity_ntu",
            "vocabulary": "welldot"
          },
          "value": 0.7,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "total_suspended_solids",
            "vocabulary": "welldot"
          },
          "value": 4,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "ph",
            "vocabulary": "welldot"
          },
          "value": 7.59,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "calcium",
            "vocabulary": "welldot"
          },
          "value": 68.88,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "magnesium",
            "vocabulary": "welldot"
          },
          "value": 11.6,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "chloride",
            "vocabulary": "welldot"
          },
          "value": 2.28,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "sulfate",
            "vocabulary": "welldot"
          },
          "value": 8,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "alkalinity_total_as_caco3",
            "vocabulary": "welldot"
          },
          "value": 216.8,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "hardness_total_as_caco3",
            "vocabulary": "welldot"
          },
          "value": 218.6,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "total_dissolved_solids",
            "vocabulary": "welldot"
          },
          "value": 255.6,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "iron",
            "vocabulary": "welldot"
          },
          "value": 0.14,
          "measured_in": "lab",
          "fraction": "total"
        },
        {
          "parameter": {
            "code": "nitrite_as_no2",
            "vocabulary": "welldot"
          },
          "value": 0.016,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "nitrate_as_no3",
            "vocabulary": "welldot"
          },
          "qualifier": "not_detected",
          "detection_limit": 0.1,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "ammonia_as_nh3",
            "vocabulary": "welldot"
          },
          "qualifier": "not_detected",
          "detection_limit": 0.1,
          "measured_in": "lab"
        }
      ]
    }
  ],
  "history_logs": [
    {
      "id": "log-01",
      "datetime": "1989-10-02T09:00:00-03:00",
      "category": "status_change",
      "status": "active",
      "description": "Poço entra em operação no abastecimento industrial."
    },
    {
      "id": "log-02",
      "datetime": "1991-06-10T08:00:00-03:00",
      "category": "status_change",
      "status": "inactive",
      "description": "Poço parado: unidade passa a ser abastecida pela rede pública."
    },
    {
      "id": "log-03",
      "datetime": "2019-11-05T09:00:00-03:00",
      "category": "maintenance",
      "maintenance_type": "video_inspection",
      "description": "Retirada da bomba e filmagem: revestimento corroído entre 18 e 24 m; cavidade a 61 m preservada.",
      "author": "Consultoria Hidrogeológica Bambuí",
      "severity": "high"
    },
    {
      "id": "log-04",
      "datetime": "2021-03-22T14:00:00-03:00",
      "category": "status_change",
      "status": "decommissioned",
      "description": "Poço tamponado com calda de cimento do fundo à superfície, conforme orientação do órgão ambiental, para evitar contaminação do aquífero cárstico.",
      "author": "Consultoria Hidrogeológica Bambuí"
    }
  ]
}