{
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    {
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          "Arroyo Mocho": "ADA accessible",
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            "sloped paved access trail",
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          "notes": "",
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          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
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          "observation_id": "observation-del-valle-picnic-access",
          "observed_at": null,
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        }
      ],
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        {
          "locator": "https://www.ebparks.org/recreation/picnics/del-valle-picnic-areas",
          "publisher": "East Bay Regional Park District",
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    {
      "action": "ADD",
      "change_set_id": "wp-20260920-del-valle-map-picnic-fishing",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-del-valle-picnic-accessibility.json",
      "reason": "Add the April 2026 Del Valle map plus official picnic and fishing evidence, preserving applicability gaps.",
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      "record_type": "claim",
      "summary": "Ingest the April 2026 park map, picnic inventory, and fishing requirements with explicit conflicts and spatial gaps."
    }
  ],
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  ],
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    }
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      "locator": "https://www.ebparks.org/recreation/picnics/del-valle-picnic-areas",
      "publisher": "East Bay Regional Park District",
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}