{
  "$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=1500002050"
  },
  "well_type": "tubular",
  "well_purpose": [
    "production"
  ],
  "name": "Poço PP-02 — Sistema Providência (Belém/PA)",
  "well_driller": "Geoperfuração Amazônia Ltda.",
  "construction_date": "1995-05-30",
  "obs": "Poço profundo de abastecimento urbano no Aquífero Pirabas confinado, sob a sequência areno-argilosa do Grupo Barreiras. Revestimento de 14\" até 69,5 m (câmara de bombeamento), redução para 8\" e três seções de filtro espiralado inox entre 202 e 253 m. Pré-filtro de areia quartzosa 1–3 mm.",
  "well_id": [
    {
      "authority": "Águas do Guamá",
      "id": "PP-02",
      "primary": true
    },
    {
      "authority": "SEMAS-PA",
      "id": "Cadastro CEH 2003/00871"
    },
    {
      "authority": "CNARH",
      "id": "150008711"
    }
  ],
  "location": {
    "lat": -1.4025,
    "lng": -48.48083,
    "elevation": 14,
    "properties": {
      "timezone": "America/Belem",
      "crs": "EPSG:4326",
      "lat_precision": 0.0003,
      "lng_precision": 0.0003,
      "elevation_datum": "x-imbituba",
      "elevation_precision": 5,
      "original_crs": "EPSG:31982"
    }
  },
  "well_depth": 265,
  "bore_hole": [
    {
      "from": 0,
      "to": 20,
      "diameter": 914,
      "drilling_method": "rotary"
    },
    {
      "from": 20,
      "to": 75,
      "diameter": 610,
      "drilling_method": "rotary"
    },
    {
      "from": 75,
      "to": 265,
      "diameter": 445,
      "drilling_method": "rotary"
    }
  ],
  "well_case": [
    {
      "from": -0.5,
      "to": 69.5,
      "type": "carbon_steel",
      "diameter": 356
    },
    {
      "from": 70,
      "to": 202,
      "type": "carbon_steel",
      "diameter": 219
    },
    {
      "from": 208.66,
      "to": 214.63,
      "type": "carbon_steel",
      "diameter": 219
    },
    {
      "from": 240.73,
      "to": 243.5,
      "type": "carbon_steel",
      "diameter": 219
    },
    {
      "from": 253.2,
      "to": 258.97,
      "type": "carbon_steel",
      "diameter": 219
    }
  ],
  "reduction": [
    {
      "from": 69.5,
      "to": 70,
      "diam_from": 356,
      "diam_to": 219,
      "type": "carbon_steel"
    }
  ],
  "well_screen": [
    {
      "from": 202,
      "to": 208.66,
      "type": "stainless_steel",
      "diameter": 219,
      "screen_slot": 0.75,
      "slot_type": "continuous_slot"
    },
    {
      "from": 214.63,
      "to": 240.73,
      "type": "stainless_steel",
      "diameter": 219,
      "screen_slot": 0.75,
      "slot_type": "continuous_slot"
    },
    {
      "from": 243.5,
      "to": 253.2,
      "type": "stainless_steel",
      "diameter": 219,
      "screen_slot": 0.75,
      "slot_type": "continuous_slot"
    }
  ],
  "surface_case": [
    {
      "from": 0,
      "to": 20,
      "diameter": 762
    }
  ],
  "hole_fill": [
    {
      "from": 0,
      "to": 20,
      "type": "seal",
      "diameter": 914,
      "description": "Cimentação do tubo de boca de 30\""
    },
    {
      "from": 20,
      "to": 75,
      "type": "seal",
      "diameter": 610,
      "description": "Calda de cimento-bentonita isolando o Barreiras"
    },
    {
      "from": 75,
      "to": 190,
      "type": "seal",
      "diameter": 445,
      "description": "Argila bentonítica"
    },
    {
      "from": 190,
      "to": 258.97,
      "type": "gravel_pack",
      "diameter": 445,
      "description": "Areia quartzosa selecionada 1,00–3,00 mm"
    },
    {
      "from": 258.97,
      "to": 265,
      "type": "seal",
      "diameter": 445,
      "description": "Tampão de fundo em calda de cimento"
    }
  ],
  "lithology": [
    {
      "from": 0,
      "to": 4,
      "description": "Argila síltico-arenosa amarela",
      "color": "#d9b45a",
      "texture": {
        "code": 619,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Grupo Barreiras",
      "aquifer_unit": "Não aquífero"
    },
    {
      "from": 4,
      "to": 8,
      "description": "Areia grossa creme",
      "color": "#e8d7a8",
      "texture": {
        "code": 607,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Grupo Barreiras",
      "aquifer_unit": "Sistema Aquífero Barreiras"
    },
    {
      "from": 8,
      "to": 13,
      "description": "Areia média a grossa avermelhada",
      "color": "#c8643c",
      "texture": {
        "code": 607,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Grupo Barreiras",
      "aquifer_unit": "Sistema Aquífero Barreiras"
    },
    {
      "from": 13,
      "to": 33,
      "description": "Argila arenosa variegada",
      "color": "#c9867a",
      "texture": {
        "code": 619,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Grupo Barreiras",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 33,
      "to": 43,
      "description": "Areia fina argilosa cinza",
      "color": "#a9a59a",
      "texture": {
        "code": 612,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Grupo Barreiras",
      "aquifer_unit": "Sistema Aquífero Barreiras"
    },
    {
      "from": 43,
      "to": 59,
      "description": "Argila cinza",
      "color": "#8d8d88",
      "texture": {
        "code": 620,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Grupo Barreiras",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 59,
      "to": 67,
      "description": "Areia fina argilosa cinza",
      "color": "#a9a59a",
      "texture": {
        "code": 612,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Grupo Barreiras",
      "aquifer_unit": "Sistema Aquífero Barreiras"
    },
    {
      "from": 67,
      "to": 77,
      "description": "Argila cinza-escura",
      "color": "#5f5f5c",
      "texture": {
        "code": 620,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Grupo Barreiras",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 77,
      "to": 85,
      "description": "Areia média a grossa cinza",
      "color": "#b3b0a6",
      "texture": {
        "code": 607,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Grupo Barreiras",
      "aquifer_unit": "Sistema Aquífero Barreiras"
    },
    {
      "from": 85,
      "to": 99,
      "description": "Argila cinza-escura",
      "color": "#5f5f5c",
      "texture": {
        "code": 620,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 99,
      "to": 120,
      "description": "Areia fina argilosa cinza-escura",
      "color": "#7f7c74",
      "texture": {
        "code": 612,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquífero Pirabas"
    },
    {
      "from": 120,
      "to": 127,
      "description": "Areia fina cinza",
      "color": "#b3b0a6",
      "texture": {
        "code": 607,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquífero Pirabas"
    },
    {
      "from": 127,
      "to": 135,
      "description": "Argila cinza",
      "color": "#8d8d88",
      "texture": {
        "code": 620,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 135,
      "to": 140,
      "description": "Areia argilosa fina cinza",
      "color": "#a9a59a",
      "texture": {
        "code": 612,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquífero Pirabas"
    },
    {
      "from": 140,
      "to": 155,
      "description": "Argila cinza",
      "color": "#8d8d88",
      "texture": {
        "code": 620,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 155,
      "to": 167,
      "description": "Argila arenosa cinza",
      "color": "#9c9a92",
      "texture": {
        "code": 619,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 167,
      "to": 176,
      "description": "Areia média a grossa cinza",
      "color": "#b3b0a6",
      "texture": {
        "code": 607,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquífero Pirabas"
    },
    {
      "from": 176,
      "to": 187,
      "description": "Argila arenosa cinza-esverdeada",
      "color": "#8a9a86",
      "texture": {
        "code": 619,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 187,
      "to": 201,
      "description": "Areia muito fina a fina cinza-esverdeada, argilosa",
      "color": "#9aa696",
      "texture": {
        "code": 612,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquífero Pirabas"
    },
    {
      "from": 201,
      "to": 209,
      "description": "Areia média cinza",
      "color": "#b3b0a6",
      "texture": {
        "code": 607,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquífero Pirabas"
    },
    {
      "from": 209,
      "to": 214,
      "description": "Argila arenosa cinza-esverdeada",
      "color": "#8a9a86",
      "texture": {
        "code": 619,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 214,
      "to": 240,
      "description": "Areia fina a média cinza",
      "color": "#bab6aa",
      "texture": {
        "code": 607,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquífero Pirabas"
    },
    {
      "from": 240,
      "to": 243,
      "description": "Argila arenosa cinza-esverdeada",
      "color": "#8a9a86",
      "texture": {
        "code": 619,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquitarde"
    },
    {
      "from": 243,
      "to": 259,
      "description": "Areia média a grossa acinzentada com seixos de quartzo",
      "color": "#a8a69e",
      "texture": {
        "code": 601,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquífero Pirabas"
    },
    {
      "from": 259,
      "to": 265,
      "description": "Argila cinza-clara com níveis avermelhados",
      "color": "#b5aaa2",
      "texture": {
        "code": 620,
        "vocabulary": "fgdc"
      },
      "geologic_unit": "Formação Pirabas",
      "aquifer_unit": "Aquitarde"
    }
  ],
  "fractures": [],
  "caves": [],
  "hydrodynamic_events": [
    {
      "id": "evt-01",
      "type": "step_drawdown",
      "datetime": "1995-06-01T07:00:00-03:00",
      "operator": "Geoperfuração Amazônia Ltda.",
      "equipment": "Bomba submersa de teste 8\"; medidor eletromagnético",
      "static_level": 10.3,
      "static_level_precision": 0.01,
      "measurement_method": "electric_probe",
      "steps": [
        {
          "rate": 60,
          "duration": 120,
          "readings": [
            {
              "elapsed": 1,
              "depth": 12.92
            },
            {
              "elapsed": 2,
              "depth": 13.15
            },
            {
              "elapsed": 3,
              "depth": 13.28
            },
            {
              "elapsed": 5,
              "depth": 13.46
            },
            {
              "elapsed": 7,
              "depth": 13.57
            },
            {
              "elapsed": 10,
              "depth": 13.69
            },
            {
              "elapsed": 15,
              "depth": 13.82
            },
            {
              "elapsed": 20,
              "depth": 13.92
            },
            {
              "elapsed": 30,
              "depth": 14.06
            },
            {
              "elapsed": 45,
              "depth": 14.19
            },
            {
              "elapsed": 60,
              "depth": 14.29
            },
            {
              "elapsed": 90,
              "depth": 14.42
            },
            {
              "elapsed": 120,
              "depth": 14.52
            }
          ]
        },
        {
          "rate": 90,
          "duration": 120,
          "readings": [
            {
              "elapsed": 1,
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            {
              "elapsed": 2,
              "depth": 16.2
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              "elapsed": 3,
              "depth": 16.28
            },
            {
              "elapsed": 5,
              "depth": 16.38
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            {
              "elapsed": 7,
              "depth": 16.45
            },
            {
              "elapsed": 10,
              "depth": 16.52
            },
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              "elapsed": 15,
              "depth": 16.6
            },
            {
              "elapsed": 20,
              "depth": 16.65
            },
            {
              "elapsed": 30,
              "depth": 16.73
            },
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              "elapsed": 45,
              "depth": 16.81
            },
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              "elapsed": 60,
              "depth": 16.87
            },
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              "elapsed": 90,
              "depth": 16.95
            },
            {
              "elapsed": 120,
              "depth": 17.01
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          ]
        },
        {
          "rate": 120,
          "duration": 120,
          "readings": [
            {
              "elapsed": 1,
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            {
              "elapsed": 2,
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            {
              "elapsed": 3,
              "depth": 18.94
            },
            {
              "elapsed": 5,
              "depth": 19.05
            },
            {
              "elapsed": 7,
              "depth": 19.12
            },
            {
              "elapsed": 10,
              "depth": 19.2
            },
            {
              "elapsed": 15,
              "depth": 19.29
            },
            {
              "elapsed": 20,
              "depth": 19.35
            },
            {
              "elapsed": 30,
              "depth": 19.44
            },
            {
              "elapsed": 45,
              "depth": 19.53
            },
            {
              "elapsed": 60,
              "depth": 19.59
            },
            {
              "elapsed": 90,
              "depth": 19.68
            },
            {
              "elapsed": 120,
              "depth": 19.74
            }
          ]
        },
        {
          "rate": 140,
          "duration": 120,
          "readings": [
            {
              "elapsed": 1,
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            },
            {
              "elapsed": 2,
              "depth": 21.07
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            {
              "elapsed": 3,
              "depth": 21.13
            },
            {
              "elapsed": 5,
              "depth": 21.21
            },
            {
              "elapsed": 7,
              "depth": 21.26
            },
            {
              "elapsed": 10,
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            },
            {
              "elapsed": 15,
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            },
            {
              "elapsed": 20,
              "depth": 21.43
            },
            {
              "elapsed": 30,
              "depth": 21.49
            },
            {
              "elapsed": 45,
              "depth": 21.55
            },
            {
              "elapsed": 60,
              "depth": 21.6
            },
            {
              "elapsed": 90,
              "depth": 21.66
            },
            {
              "elapsed": 120,
              "depth": 21.7
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      ],
      "recovery": {
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          {
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          },
          {
            "elapsed": 2,
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          {
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            "depth": 15.37
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          {
            "elapsed": 5,
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          },
          {
            "elapsed": 10,
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          },
          {
            "elapsed": 15,
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          {
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          },
          {
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          },
          {
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            "depth": 11.91
          },
          {
            "elapsed": 240,
            "depth": 11.4
          }
        ]
      }
    },
    {
      "id": "evt-02",
      "type": "constant_rate",
      "datetime": "1995-06-03T07:00:00-03:00",
      "operator": "Geoperfuração Amazônia Ltda.",
      "equipment": "Bomba submersa de teste 8\"; transdutor de pressão",
      "static_level": 10.3,
      "static_level_precision": 0.01,
      "measurement_method": "pressure_transducer",
      "steps": [
        {
          "rate": 120,
          "duration": 1440,
          "readings": [
            {
              "elapsed": 1,
              "depth": 17.85
            },
            {
              "elapsed": 2,
              "depth": 18.03
            },
            {
              "elapsed": 3,
              "depth": 18.14
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            {
              "elapsed": 5,
              "depth": 18.27
            },
            {
              "elapsed": 7,
              "depth": 18.36
            },
            {
              "elapsed": 10,
              "depth": 18.45
            },
            {
              "elapsed": 15,
              "depth": 18.56
            },
            {
              "elapsed": 20,
              "depth": 18.63
            },
            {
              "elapsed": 30,
              "depth": 18.73
            },
            {
              "elapsed": 45,
              "depth": 18.84
            },
            {
              "elapsed": 60,
              "depth": 18.91
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            {
              "elapsed": 90,
              "depth": 19.02
            },
            {
              "elapsed": 120,
              "depth": 19.09
            },
            {
              "elapsed": 180,
              "depth": 19.2
            },
            {
              "elapsed": 240,
              "depth": 19.27
            },
            {
              "elapsed": 360,
              "depth": 19.38
            },
            {
              "elapsed": 480,
              "depth": 19.45
            },
            {
              "elapsed": 600,
              "depth": 19.51
            },
            {
              "elapsed": 720,
              "depth": 19.56
            },
            {
              "elapsed": 900,
              "depth": 19.62
            },
            {
              "elapsed": 1080,
              "depth": 19.67
            },
            {
              "elapsed": 1260,
              "depth": 19.71
            },
            {
              "elapsed": 1440,
              "depth": 19.74,
              "depth_precision": 0.01
            }
          ],
          "rate_precision": 2
        }
      ],
      "recovery": {
        "readings": [
          {
            "elapsed": 1,
            "depth": 12.19
          },
          {
            "elapsed": 2,
            "depth": 12.01
          },
          {
            "elapsed": 3,
            "depth": 11.9
          },
          {
            "elapsed": 5,
            "depth": 11.77
          },
          {
            "elapsed": 10,
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          },
          {
            "elapsed": 15,
            "depth": 11.49
          },
          {
            "elapsed": 30,
            "depth": 11.31
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          {
            "elapsed": 60,
            "depth": 11.14
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          {
            "elapsed": 120,
            "depth": 10.97
          },
          {
            "elapsed": 240,
            "depth": 10.81
          },
          {
            "elapsed": 360,
            "depth": 10.72
          },
          {
            "elapsed": 480,
            "depth": 10.66
          }
        ]
      }
    },
    {
      "id": "evt-03",
      "type": "spot_measurement",
      "datetime": "2012-03-20T06:00:00-03:00",
      "static_level": 14.8,
      "measurement_method": "electric_probe",
      "operator": "Águas do Guamá — Operação",
      "notes": "Antes da limpeza."
    },
    {
      "id": "evt-04",
      "type": "airlift",
      "datetime": "2012-03-21T08:00:00-03:00",
      "operator": "Geoperfuração Amazônia Ltda.",
      "notes": "Redesenvolvimento com ar comprimido e pistoneamento.",
      "steps": [
        {
          "rate": 90,
          "duration": 720
        }
      ]
    },
    {
      "id": "evt-05",
      "type": "constant_rate",
      "datetime": "2012-03-24T07:00:00-03:00",
      "operator": "Geoperfuração Amazônia Ltda.",
      "static_level": 14.6,
      "measurement_method": "electric_probe",
      "notes": "Teste de controle após a limpeza (6 h).",
      "steps": [
        {
          "rate": 110,
          "duration": 360,
          "readings": [
            {
              "elapsed": 360,
              "depth": 24.9
            }
          ]
        }
      ]
    },
    {
      "id": "evt-06",
      "type": "spot_measurement",
      "datetime": "2025-11-10T06:00:00-03:00",
      "static_level": 18.95,
      "static_level_precision": 0.01,
      "measurement_method": "electric_probe",
      "operator": "Águas do Guamá — Operação"
    }
  ],
  "centralizers": [
    {
      "from": 80,
      "to": 250,
      "spacing": 12,
      "type": "spring_bow",
      "diameter": 420
    }
  ],
  "cement_pad": {
    "type": "reinforced_concrete",
    "width": 3,
    "thickness": 0.25,
    "length": 3
  },
  "attachments": [
    {
      "id": "a1",
      "uri": "https://files.example.org/wells/belem-pp02/relatorio-final-1995.pdf",
      "media_type": "application/pdf",
      "document_type": "drilling_report"
    },
    {
      "id": "a2",
      "uri": "https://files.example.org/wells/belem-pp02/perfil-geofisico-1995.pdf",
      "media_type": "application/pdf",
      "document_type": "x-geophysical_log",
      "description": "Raios gama e resistividade"
    }
  ],
  "aquifer_analysis": [
    {
      "id": "an-1995",
      "datetime": "1995-06-15T10:00:00-03:00",
      "analyst": "Geoperfuração Amazônia — Hidrogeólogo",
      "source_event_ids": [
        "evt-01",
        "evt-02"
      ],
      "method": "cooper_jacob",
      "static_level": 10.3,
      "static_level_source_id": "evt-02",
      "dynamic_level": 19.74,
      "flow_rate": 120,
      "max_flow_rate": 140,
      "max_flow_rate_basis": "step_drawdown",
      "specific_capacity": 12.712,
      "transmissivity": 881.7,
      "jacob_b": 0.062,
      "jacob_c": 0.000139,
      "well_efficiency_pct": 79,
      "notes": "Aquífero confinado; armazenamento não determinado (sem poço de observação)."
    }
  ],
  "pump_installations": [
    {
      "id": "pump-1999",
      "installed_at": "1999-10-01T09:00:00-03:00",
      "removed_at": "2018-07-09T08:00:00-03:00",
      "type": "submersible",
      "power_source": "grid",
      "manufacturer": "KSB",
      "model": "UPA 200-22/8",
      "intake_depth": 60,
      "rated_flow_rate": 110,
      "rated_head": 70,
      "rated_power": 37,
      "stages": 8,
      "riser_diameter": 150,
      "riser_material": "carbon_steel",
      "check_valve": true,
      "electrical": {
        "voltage": 440,
        "phases": 3,
        "cable_section": 35,
        "cable_length": 80
      }
    },
    {
      "id": "pump-2018",
      "installed_at": "2018-07-09T14:00:00-03:00",
      "type": "submersible",
      "power_source": "grid",
      "manufacturer": "Grundfos",
      "model": "SP 125-4",
      "intake_depth": 60,
      "rated_flow_rate": 110,
      "rated_head": 72,
      "rated_power": 37,
      "stages": 4,
      "riser_diameter": 150,
      "riser_material": "stainless_steel",
      "check_valve": true,
      "electrical": {
        "voltage": 440,
        "phases": 3,
        "cable_section": 35,
        "cable_length": 82
      }
    }
  ],
  "permits": [
    {
      "id": "outorga-2019",
      "type": "abstraction_permit",
      "authority": "SEMAS-PA",
      "status": "granted",
      "identifier": "Outorga SEMAS nº 2871/2019",
      "request_identifier": "Processo nº 2018/0000041177",
      "issued_at": "2019-01-22",
      "valid_until": "2029-01-22",
      "water_use": [
        "human_supply"
      ],
      "flow_rate": 110,
      "daily_operating_time": 20,
      "volume_limits": [
        {
          "period": "monthly",
          "volume": 66000
        }
      ],
      "conditions": [
        {
          "id": "c1",
          "description": "Instalar macromedidor com registro contínuo.",
          "category": "equipment_installation",
          "responsible": "Águas do Guamá",
          "due_after": "P30D",
          "fulfillments": [
            {
              "id": "f1",
              "datetime": "2019-02-01T10:00:00-03:00",
              "due_date": "2019-02-21",
              "description": "Macromedidor eletromagnético instalado com telemetria.",
              "author": "Águas do Guamá"
            }
          ]
        },
        {
          "id": "c2",
          "description": "Informar volumes mensais e nível estático trimestral.",
          "category": "reporting",
          "responsible": "Águas do Guamá — Recursos Hídricos",
          "first_due": "2019-05-15",
          "recurrence": "P3M"
        }
      ],
      "history": [
        {
          "id": "h1",
          "date": "2018-11-05",
          "type": "filing",
          "description": "Regularização do poço (operava sem outorga desde 1999)."
        },
        {
          "id": "h2",
          "date": "2019-01-22",
          "type": "decision",
          "description": "Outorga emitida."
        }
      ]
    }
  ],
  "meters": [
    {
      "id": "mac-1",
      "installed_at": "2019-02-01T00:00:00-03:00",
      "type": "electromagnetic",
      "manufacturer": "Endress+Hauser",
      "model": "Promag W 400",
      "serial": "EH19-0042117",
      "nominal_diameter": 150,
      "notes": "Telemetria; leitura trimestral consolidada."
    }
  ],
  "production": [
    {
      "id": "prd-001",
      "type": "meter_reading",
      "datetime": "2019-02-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 0,
      "source": "telemetry",
      "notes": "Leitura de instalação."
    },
    {
      "id": "prd-002",
      "type": "meter_reading",
      "datetime": "2019-05-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 189795,
      "source": "telemetry"
    },
    {
      "id": "prd-003",
      "type": "meter_reading",
      "datetime": "2019-08-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 386338,
      "source": "telemetry"
    },
    {
      "id": "prd-004",
      "type": "meter_reading",
      "datetime": "2019-11-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 578994,
      "source": "telemetry"
    },
    {
      "id": "prd-005",
      "type": "meter_reading",
      "datetime": "2020-02-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 774002,
      "source": "telemetry"
    },
    {
      "id": "prd-006",
      "type": "meter_reading",
      "datetime": "2020-05-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 966961,
      "source": "telemetry"
    },
    {
      "id": "prd-007",
      "type": "meter_reading",
      "datetime": "2020-08-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 1174065,
      "source": "telemetry"
    },
    {
      "id": "prd-008",
      "type": "meter_reading",
      "datetime": "2020-11-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 1380649,
      "source": "telemetry"
    },
    {
      "id": "prd-009",
      "type": "meter_reading",
      "datetime": "2021-02-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 1574789,
      "source": "telemetry"
    },
    {
      "id": "prd-010",
      "type": "meter_reading",
      "datetime": "2021-05-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 1764827,
      "source": "telemetry"
    },
    {
      "id": "prd-011",
      "type": "meter_reading",
      "datetime": "2021-08-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 1969186,
      "source": "telemetry"
    },
    {
      "id": "prd-012",
      "type": "meter_reading",
      "datetime": "2021-11-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 2159601,
      "source": "telemetry"
    },
    {
      "id": "prd-013",
      "type": "meter_reading",
      "datetime": "2022-02-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 2353608,
      "source": "telemetry"
    },
    {
      "id": "prd-014",
      "type": "meter_reading",
      "datetime": "2022-05-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 2547559,
      "source": "telemetry"
    },
    {
      "id": "prd-015",
      "type": "meter_reading",
      "datetime": "2022-08-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 2741563,
      "source": "telemetry"
    },
    {
      "id": "prd-016",
      "type": "meter_reading",
      "datetime": "2022-11-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 2929796,
      "source": "telemetry"
    },
    {
      "id": "prd-017",
      "type": "meter_reading",
      "datetime": "2023-02-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 3137472,
      "source": "telemetry"
    },
    {
      "id": "prd-018",
      "type": "meter_reading",
      "datetime": "2023-05-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 3322081,
      "source": "telemetry"
    },
    {
      "id": "prd-019",
      "type": "meter_reading",
      "datetime": "2023-08-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 3521171,
      "source": "telemetry"
    },
    {
      "id": "prd-020",
      "type": "meter_reading",
      "datetime": "2023-11-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 3726645,
      "source": "telemetry"
    },
    {
      "id": "prd-021",
      "type": "meter_reading",
      "datetime": "2024-02-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 3913800,
      "source": "telemetry"
    },
    {
      "id": "prd-022",
      "type": "meter_reading",
      "datetime": "2024-05-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 4107037,
      "source": "telemetry"
    },
    {
      "id": "prd-023",
      "type": "meter_reading",
      "datetime": "2024-08-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 4298452,
      "source": "telemetry"
    },
    {
      "id": "prd-024",
      "type": "meter_reading",
      "datetime": "2024-11-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 4497431,
      "source": "telemetry"
    },
    {
      "id": "prd-025",
      "type": "meter_reading",
      "datetime": "2025-02-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 4694417,
      "source": "telemetry"
    },
    {
      "id": "prd-026",
      "type": "meter_reading",
      "datetime": "2025-05-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 4876532,
      "source": "telemetry"
    },
    {
      "id": "prd-027",
      "type": "meter_reading",
      "datetime": "2025-08-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 5078339,
      "source": "telemetry"
    },
    {
      "id": "prd-028",
      "type": "meter_reading",
      "datetime": "2025-11-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 5283367,
      "source": "telemetry"
    },
    {
      "id": "prd-029",
      "type": "meter_reading",
      "datetime": "2026-02-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 5490622,
      "source": "telemetry"
    },
    {
      "id": "prd-030",
      "type": "meter_reading",
      "datetime": "2026-05-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 5685390,
      "source": "telemetry"
    },
    {
      "id": "prd-031",
      "type": "meter_reading",
      "datetime": "2026-08-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 5885305,
      "source": "telemetry"
    },
    {
      "id": "prd-032",
      "type": "meter_reading",
      "datetime": "2026-11-01T00:00:00-03:00",
      "meter_id": "mac-1",
      "reading": 6075593,
      "source": "telemetry"
    }
  ],
  "operating_regime": [
    {
      "id": "reg-1999",
      "effective_from": "1999-10-01T09:00:00-03:00",
      "flow_rate": 110,
      "daily_operating_time": 22,
      "days_per_week": 7
    },
    {
      "id": "reg-2019",
      "effective_from": "2019-01-22T00:00:00-03:00",
      "flow_rate": 110,
      "daily_operating_time": 20,
      "days_per_week": 7,
      "notes": "Ajustado à outorga."
    }
  ],
  "water_samples": [
    {
      "id": "am-2025",
      "datetime": "2025-11-10T08:00:00-03:00",
      "sample_type": "routine",
      "campaign": "Portaria GM/MS 888 — semestral 2025-2",
      "sampling_method": "pump_discharge",
      "sampling_point": {
        "type": "pump_discharge"
      },
      "static_level_event_id": "evt-06",
      "collected_by": "Águas do Guamá — Laboratório Central",
      "laboratory": {
        "name": "Laboratório Central Águas do Guamá",
        "accreditation": "CRL 1021 (ISO/IEC 17025)",
        "report_number": "LCAG-25/7714",
        "received_at": "2025-11-10T13:30:00-03:00",
        "received_temperature": 5.2
      },
      "results": [
        {
          "parameter": {
            "code": "temperature",
            "vocabulary": "welldot"
          },
          "value": 29.1,
          "measured_in": "field"
        },
        {
          "parameter": {
            "code": "ph",
            "vocabulary": "welldot"
          },
          "value": 7.3,
          "measured_in": "field"
        },
        {
          "parameter": {
            "code": "specific_conductance",
            "vocabulary": "welldot"
          },
          "value": 352,
          "measured_in": "field"
        },
        {
          "parameter": {
            "code": "free_chlorine",
            "vocabulary": "welldot"
          },
          "value": 0.05,
          "measured_in": "field",
          "qualifier": "<",
          "notes": "Antes da cloração."
        },
        {
          "parameter": {
            "code": "turbidity_ntu",
            "vocabulary": "welldot"
          },
          "value": 1.6,
          "measured_in": "lab",
          "method": "SMEWW 2130 B"
        },
        {
          "parameter": {
            "code": "apparent_color",
            "vocabulary": "welldot"
          },
          "value": 8,
          "measured_in": "lab",
          "method": "SMEWW 2120 B"
        },
        {
          "parameter": {
            "code": "total_dissolved_solids",
            "vocabulary": "welldot"
          },
          "value": 214,
          "measured_in": "lab",
          "method": "SMEWW 2540 C"
        },
        {
          "parameter": {
            "code": "alkalinity_total_as_caco3",
            "vocabulary": "welldot"
          },
          "value": 148,
          "measured_in": "lab",
          "method": "SMEWW 2320 B"
        },
        {
          "parameter": {
            "code": "hardness_total_as_caco3",
            "vocabulary": "welldot"
          },
          "value": 136,
          "measured_in": "lab",
          "method": "SMEWW 2340 C"
        },
        {
          "parameter": {
            "code": "calcium",
            "vocabulary": "welldot"
          },
          "value": 44.5,
          "measured_in": "lab",
          "method": "SMEWW 3120 B"
        },
        {
          "parameter": {
            "code": "magnesium",
            "vocabulary": "welldot"
          },
          "value": 6.1,
          "measured_in": "lab",
          "method": "SMEWW 3120 B"
        },
        {
          "parameter": {
            "code": "sodium",
            "vocabulary": "welldot"
          },
          "value": 18.2,
          "measured_in": "lab",
          "method": "SMEWW 3120 B"
        },
        {
          "parameter": {
            "code": "potassium",
            "vocabulary": "welldot"
          },
          "value": 4.4,
          "measured_in": "lab",
          "method": "SMEWW 3120 B"
        },
        {
          "parameter": {
            "code": "bicarbonate",
            "vocabulary": "welldot"
          },
          "value": 180,
          "measured_in": "lab",
          "method": "SMEWW 2320 B"
        },
        {
          "parameter": {
            "code": "chloride",
            "vocabulary": "welldot"
          },
          "value": 21.5,
          "measured_in": "lab",
          "method": "SMEWW 4500-Cl⁻ B"
        },
        {
          "parameter": {
            "code": "sulfate",
            "vocabulary": "welldot"
          },
          "value": 6.8,
          "measured_in": "lab",
          "method": "SMEWW 4500-SO₄²⁻ E"
        },
        {
          "parameter": {
            "code": "fluoride",
            "vocabulary": "welldot"
          },
          "value": 0.32,
          "measured_in": "lab",
          "method": "SMEWW 4500-F⁻ C"
        },
        {
          "parameter": {
            "code": "nitrate_as_n",
            "vocabulary": "welldot"
          },
          "value": 0.11,
          "measured_in": "lab",
          "method": "SMEWW 4500-NO₃⁻ E"
        },
        {
          "parameter": {
            "code": "nitrite_as_n",
            "vocabulary": "welldot"
          },
          "qualifier": "not_detected",
          "detection_limit": 0.005,
          "measured_in": "lab"
        },
        {
          "parameter": {
            "code": "ammonia_as_n",
            "vocabulary": "welldot"
          },
          "value": 0.21,
          "measured_in": "lab",
          "method": "SMEWW 4500-NH₃ F"
        },
        {
          "parameter": {
            "code": "iron",
            "vocabulary": "welldot"
          },
          "value": 0.42,
          "measured_in": "lab",
          "method": "US EPA 200.7",
          "fraction": "total",
          "notes": "Acima de 0,3 mg/L: sistema de aeração e filtração na saída."
        },
        {
          "parameter": {
            "code": "manganese",
            "vocabulary": "welldot"
          },
          "value": 0.04,
          "measured_in": "lab",
          "method": "US EPA 200.7",
          "fraction": "total"
        },
        {
          "parameter": {
            "code": "total_coliforms",
            "vocabulary": "welldot"
          },
          "presence": false,
          "measured_in": "lab",
          "method": "SMEWW 9223 B"
        },
        {
          "parameter": {
            "code": "e_coli",
            "vocabulary": "welldot"
          },
          "presence": false,
          "measured_in": "lab",
          "method": "SMEWW 9223 B"
        }
      ]
    }
  ],
  "history_logs": [
    {
      "id": "log-01",
      "datetime": "1995-06-05T17:00:00-03:00",
      "category": "event",
      "description": "Conclusão da perfuração, completação e testes.",
      "hydrodynamic_event_ids": [
        "evt-01",
        "evt-02"
      ]
    },
    {
      "id": "log-02",
      "datetime": "1999-10-01T09:00:00-03:00",
      "category": "status_change",
      "status": "active",
      "description": "Poço equipado e ligado ao reservatório do conjunto."
    },
    {
      "id": "log-03",
      "datetime": "2012-03-20T06:00:00-03:00",
      "category": "status_change",
      "status": "maintenance",
      "description": "Parada para limpeza: queda de 20 % na vazão."
    },
    {
      "id": "log-04",
      "datetime": "2012-03-21T08:00:00-03:00",
      "category": "maintenance",
      "maintenance_type": "redevelopment",
      "description": "Redesenvolvimento com air-lift e pistoneamento; teste de controle de 6 h.",
      "hydrodynamic_event_ids": [
        "evt-04",
        "evt-05"
      ]
    },
    {
      "id": "log-05",
      "datetime": "2012-03-25T08:00:00-03:00",
      "category": "status_change",
      "status": "active",
      "description": "Poço retorna à operação."
    },
    {
      "id": "log-06",
      "datetime": "2018-07-09T14:00:00-03:00",
      "category": "maintenance",
      "maintenance_type": "pump_service",
      "pump_installation_id": "pump-2018",
      "description": "Substituição da bomba (rotor desgastado por areia fina)."
    },
    {
      "id": "log-07",
      "datetime": "2023-09-12T09:00:00-03:00",
      "category": "maintenance",
      "maintenance_type": "video_inspection",
      "description": "Perfilagem ótica: filtros íntegros, leve incrustação ferruginosa entre 215 e 225 m."
    },
    {
      "id": "log-08",
      "datetime": "2025-11-10T08:00:00-03:00",
      "category": "maintenance",
      "maintenance_type": "water_sampling",
      "sample_ids": [
        "am-2025"
      ],
      "hydrodynamic_event_ids": [
        "evt-06"
      ],
      "description": "Coleta semestral e medição de nível."
    }
  ]
}