{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-ohlone-water-availability-20260919",
        "evidence_ids": [
          "evidence-ohlone-water-availability-20260919"
        ],
        "predicate": "reported_water_availability",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-trail"
        ],
        "subject_id": "trail-ohlone-wilderness",
        "temporal_scope": {
          "ends_on": "2026-09-19",
          "starts_on": "2026-09-19"
        },
        "value": {
          "available": [
            "Eagle Springs",
            "Backpack Camp",
            "Doe Camp",
            "Maggie's Half Acre",
            "Boyd Camp",
            "Stromer Springs",
            "Stewart's Camp"
          ],
          "potable": false,
          "required_treatment": [
            "filter",
            "treat",
            "boil"
          ]
        }
      },
      "evidence": [
        {
          "claim_id": "claim-ohlone-water-availability-20260919",
          "evidence_id": "evidence-ohlone-water-availability-20260919",
          "notes": "",
          "observation_id": "observation-ebrpd-ohlone-water-20260919",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Updated 2026-09-19: Eagle Springs, Backpack Camp, Doe Camp, Maggie's Half Acre, Boyd Camp, Stromer Springs, and Stewart's Camp report water available. All water is non-potable and must be filtered, treated, or boiled for human consumption.",
          "observation_id": "observation-ebrpd-ohlone-water-20260919",
          "observed_at": "2026-09-19T00:00:00+00:00",
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/ohlone",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-park-page"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "trail-ohlone-wilderness",
      "kind": "trail",
      "name": "Ohlone Wilderness Trail"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ebrpd-ohlone-park-page",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/observations/observation-ebrpd-ohlone-water-20260919.json",
      "reason": "Add the official Ohlone preserve page, resolve the 2026 permit change, and date volatile water status.",
      "record_id": "observation-ebrpd-ohlone-water-20260919",
      "record_type": "observation",
      "summary": "Ingest the official Ohlone preserve page, resolve the obsolete permit ambiguity, and preserve dated water availability."
    }
  ],
  "navigation": {
    "next_id": "observation-ebrpd-ordinance-38-camping",
    "position": 126,
    "previous_id": "observation-ebrpd-ohlone-trail",
    "total": 1318
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "Updated 2026-09-19: Eagle Springs, Backpack Camp, Doe Camp, Maggie's Half Acre, Boyd Camp, Stromer Springs, and Stewart's Camp report water available. All water is non-potable and must be filtered, treated, or boiled for human consumption.",
      "observation_id": "observation-ebrpd-ohlone-water-20260919",
      "observed_at": "2026-09-19T00:00:00+00:00",
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-ohlone-park-page"
    }
  ],
  "record": {
    "artifact_refs": [],
    "content": "Updated 2026-09-19: Eagle Springs, Backpack Camp, Doe Camp, Maggie's Half Acre, Boyd Camp, Stromer Springs, and Stewart's Camp report water available. All water is non-potable and must be filtered, treated, or boiled for human consumption.",
    "observation_id": "observation-ebrpd-ohlone-water-20260919",
    "observed_at": "2026-09-19T00:00:00+00:00",
    "observer": "Wayproof source review",
    "retrieved_at": "2026-09-20T00:00:00+00:00",
    "source_id": "source-ebrpd-ohlone-park-page"
  },
  "record_type": "observation",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/parks/ohlone",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-ohlone-park-page"
    }
  ]
}