{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-del-valle-dog-swimming-prohibited-zone",
        "evidence_ids": [
          "evidence-del-valle-dog-swimming-prohibited-zone"
        ],
        "predicate": "dog_swimming_prohibited_area",
        "spatial_scope_ids": [
          "scope-lake-del-valle"
        ],
        "subject_id": "lake-del-valle",
        "temporal_scope": {
          "ends_on": null,
          "starts_on": "2023-09-01"
        },
        "value": "Oak Point north to East Marina"
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-dog-swimming-prohibited-zone",
          "evidence_id": "evidence-del-valle-dog-swimming-prohibited-zone",
          "notes": "",
          "observation_id": "observation-ebrpd-ordinance-38-dogs",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "PDF pages 25-27"
          ],
          "content": "Sections 801.1-801.3 prohibit dog swimming at Lake Del Valle from Oak Point north to the East Marina; require leashes in developed areas including campgrounds; cap leashes at six feet and dogs at three per person; and require campground animals to be attended and leashed or confined.",
          "observation_id": "observation-ebrpd-ordinance-38-dogs",
          "observed_at": "2023-09-01T00:00:00+00:00",
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ordinance-38-september-2023"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/sites/default/files/Ord38-09052023FINAL.pdf",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ordinance-38-september-2023"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-dogs",
        "evidence_ids": [
          "evidence-del-valle-dogs",
          "evidence-ordinance38-dog-rules"
        ],
        "predicate": "dog_rules",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": {
          "confined_during_quiet_hours": true,
          "excluded_places": [
            "swim_beach",
            "swim_area",
            "cabins",
            "select_trails"
          ],
          "leash_in_developed_areas": true,
          "maximum_per_site": 3,
          "trained_service_animal_exception": true,
          "unattended_allowed": false
        }
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-dogs",
          "evidence_id": "evidence-del-valle-dogs",
          "notes": "",
          "observation_id": "observation-del-valle-dogs",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-dogs",
          "evidence_id": "evidence-ordinance38-dog-rules",
          "notes": "Supports leash, maximum-number, unattended, and water-exclusion portions; other claim fields come from campground-specific evidence.",
          "observation_id": "observation-ebrpd-ordinance-38-dogs",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The page permits at most three dogs per campsite, requires leashes in campgrounds and developed areas, requires confinement in a vehicle or tent during quiet hours, prohibits unattended dogs, and excludes dogs other than trained service animals from swim beaches, swim areas, cabins, and select trails.",
          "observation_id": "observation-del-valle-dogs",
          "observed_at": null,
          "observer": "user-supplied page transcription",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-reserveamerica-del-valle-overview-110003"
        },
        {
          "artifact_refs": [
            "PDF pages 25-27"
          ],
          "content": "Sections 801.1-801.3 prohibit dog swimming at Lake Del Valle from Oak Point north to the East Marina; require leashes in developed areas including campgrounds; cap leashes at six feet and dogs at three per person; and require campground animals to be attended and leashed or confined.",
          "observation_id": "observation-ebrpd-ordinance-38-dogs",
          "observed_at": "2023-09-01T00:00:00+00:00",
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ordinance-38-september-2023"
        }
      ],
      "sources": [
        {
          "locator": "https://www.reserveamerica.com/explore/del-valle/EB/110003/overview",
          "publisher": "ReserveAmerica / East Bay Regional Park District",
          "source_id": "source-reserveamerica-del-valle-overview-110003"
        },
        {
          "locator": "https://www.ebparks.org/sites/default/files/Ord38-09052023FINAL.pdf",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ordinance-38-september-2023"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-ebrpd-developed-area-dog-restraint",
        "evidence_ids": [
          "evidence-ebrpd-developed-area-dog-restraint"
        ],
        "predicate": "developed_area_dog_restraint",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "org-east-bay-regional-park-district",
        "temporal_scope": {
          "ends_on": null,
          "starts_on": "2023-09-01"
        },
        "value": {
          "campground_attended": true,
          "campground_confinement_alternative": true,
          "leash_required": true,
          "maximum_dogs_per_person": 3,
          "maximum_leash_feet": 6
        }
      },
      "evidence": [
        {
          "claim_id": "claim-ebrpd-developed-area-dog-restraint",
          "evidence_id": "evidence-ebrpd-developed-area-dog-restraint",
          "notes": "",
          "observation_id": "observation-ebrpd-ordinance-38-dogs",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "PDF pages 25-27"
          ],
          "content": "Sections 801.1-801.3 prohibit dog swimming at Lake Del Valle from Oak Point north to the East Marina; require leashes in developed areas including campgrounds; cap leashes at six feet and dogs at three per person; and require campground animals to be attended and leashed or confined.",
          "observation_id": "observation-ebrpd-ordinance-38-dogs",
          "observed_at": "2023-09-01T00:00:00+00:00",
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ordinance-38-september-2023"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/sites/default/files/Ord38-09052023FINAL.pdf",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ordinance-38-september-2023"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "campground-del-valle-family",
      "kind": "campground",
      "name": "Del Valle Family Campground"
    },
    {
      "entity_id": "lake-del-valle",
      "kind": "lake",
      "name": "Lake Del Valle"
    },
    {
      "entity_id": "org-east-bay-regional-park-district",
      "kind": "organization",
      "name": "East Bay Regional Park District"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ebrpd-ordinance-38-del-valle",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/observations/observation-ebrpd-ordinance-38-dogs.json",
      "reason": "Add September 2023 Ordinance 38 as primary regulatory evidence for Del Valle planning.",
      "record_id": "observation-ebrpd-ordinance-38-dogs",
      "record_type": "observation",
      "summary": "Ingest the Ordinance 38 landing page and September 2023 PDF, separating district-wide and Del Valle-specific rules."
    }
  ],
  "navigation": {
    "next_id": "observation-ebrpd-ordinance-38-fire-smoking",
    "position": 129,
    "previous_id": "observation-ebrpd-ordinance-38-del-valle-boating",
    "total": 1318
  },
  "observations": [
    {
      "artifact_refs": [
        "PDF pages 25-27"
      ],
      "content": "Sections 801.1-801.3 prohibit dog swimming at Lake Del Valle from Oak Point north to the East Marina; require leashes in developed areas including campgrounds; cap leashes at six feet and dogs at three per person; and require campground animals to be attended and leashed or confined.",
      "observation_id": "observation-ebrpd-ordinance-38-dogs",
      "observed_at": "2023-09-01T00:00:00+00:00",
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-ordinance-38-september-2023"
    }
  ],
  "record": {
    "artifact_refs": [
      "PDF pages 25-27"
    ],
    "content": "Sections 801.1-801.3 prohibit dog swimming at Lake Del Valle from Oak Point north to the East Marina; require leashes in developed areas including campgrounds; cap leashes at six feet and dogs at three per person; and require campground animals to be attended and leashed or confined.",
    "observation_id": "observation-ebrpd-ordinance-38-dogs",
    "observed_at": "2023-09-01T00:00:00+00:00",
    "observer": "Wayproof source review",
    "retrieved_at": "2026-09-20T00:00:00+00:00",
    "source_id": "source-ebrpd-ordinance-38-september-2023"
  },
  "record_type": "observation",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/sites/default/files/Ord38-09052023FINAL.pdf",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-ordinance-38-september-2023"
    }
  ]
}