{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-del-valle-alcohol",
        "evidence_ids": [
          "evidence-del-valle-alcohol"
        ],
        "predicate": "alcohol_rules",
        "spatial_scope_ids": [
          "scope-del-valle-park"
        ],
        "subject_id": "park-del-valle-regional-park",
        "temporal_scope": null,
        "value": {
          "beer_wine_locations": [
            "campsites",
            "picnic_areas"
          ],
          "group_site_beer_wine_permit_required": true,
          "hard_alcohol_allowed": false,
          "minimum_age": 21,
          "prohibited_locations": [
            "parking_lots",
            "trails",
            "swim_beaches"
          ]
        }
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-alcohol",
          "evidence_id": "evidence-del-valle-alcohol",
          "notes": "",
          "observation_id": "observation-del-valle-alcohol",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Hard alcohol is prohibited. Adults 21 and older may consume beer and wine at campsites or picnic areas, but not in parking lots, on trails, or at swim beaches; group campsites require an advance beer and wine permit.",
          "observation_id": "observation-del-valle-alcohol",
          "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"
        }
      ],
      "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"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-backpacking-reservation",
        "evidence_ids": [
          "evidence-del-valle-backpacking-reservation"
        ],
        "predicate": "backpacking_reservation_window",
        "spatial_scope_ids": [
          "scope-del-valle-park"
        ],
        "subject_id": "org-east-bay-regional-park-district",
        "temporal_scope": null,
        "value": {
          "channel": "phone",
          "minimum_advance_hours": 48
        }
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-backpacking-reservation",
          "evidence_id": "evidence-del-valle-backpacking-reservation",
          "notes": "The booking-platform notice supplies both the channel and minimum lead time.",
          "observation_id": "observation-del-valle-backpacking-reservation",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "IMPORTANT INFORMATION notice"
          ],
          "content": "The live page says backpacking reservations must be made by phone through EBRPD Reservations at least 48 hours in advance.",
          "observation_id": "observation-del-valle-backpacking-reservation",
          "observed_at": null,
          "observer": "Wayproof live Chrome source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-reserveamerica-del-valle-overview-110003"
        }
      ],
      "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"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-boat-inspection",
        "evidence_ids": [
          "evidence-del-valle-boat-inspection",
          "evidence-del-valle-ebrpd-boat-inspection",
          "evidence-ebrpd-mussels-del-valle-inspection"
        ],
        "predicate": "boat_inspection_required",
        "spatial_scope_ids": [
          "scope-lake-del-valle"
        ],
        "subject_id": "lake-del-valle",
        "temporal_scope": null,
        "value": true
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-boat-inspection",
          "evidence_id": "evidence-del-valle-boat-inspection",
          "notes": "",
          "observation_id": "observation-del-valle-boating-swimming",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-boat-inspection",
          "evidence_id": "evidence-del-valle-ebrpd-boat-inspection",
          "notes": "",
          "observation_id": "observation-del-valle-ebrpd-golden-mussel",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-boat-inspection",
          "evidence_id": "evidence-ebrpd-mussels-del-valle-inspection",
          "notes": "",
          "observation_id": "observation-ebrpd-mussels-program-scope",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The page lists two swimming beaches, lifeguards during posted periods, boat rentals, and a public launch for boats of any size; it warns that boaters must comply with the Invasive Mussel Prevention Program and mandatory inspections.",
          "observation_id": "observation-del-valle-boating-swimming",
          "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": [],
          "content": "At retrieval, the page stated that a boat launched at Contra Loma would be quarantined for 30 days from inspected lakes including Del Valle; vessels must be cleaned, drained, and dried, and boat bands are honored only by the lake that issued them. It also requires campground guests with watercraft to complete inspection before campground check-in.",
          "observation_id": "observation-del-valle-ebrpd-golden-mussel",
          "observed_at": "2026-09-20T00:00:00+00:00",
          "observer": "user-supplied page transcription",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-del-valle-park-page"
        },
        {
          "artifact_refs": [],
          "content": "EBRPD requires watercraft inspection at Contra Loma, Del Valle, Lake Chabot, Quarry Lakes, and Shadow Cliffs. Covered craft include boats, kayaks, canoes, sailboats, inflatable craft, and every form of floating board. Campers with watercraft must complete inspection before campground check-in.",
          "observation_id": "observation-ebrpd-mussels-program-scope",
          "observed_at": null,
          "observer": "user-supplied page transcription",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-invasive-mussel-program"
        }
      ],
      "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/parks/del-valle",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-del-valle-park-page"
        },
        {
          "locator": "https://www.ebparks.org/recreation/boating/invasive-mussels",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-invasive-mussel-program"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-booking-facility",
        "evidence_ids": [
          "evidence-del-valle-booking-facility"
        ],
        "predicate": "accepts_reservations_for",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "facility-reserveamerica-del-valle-110003",
        "temporal_scope": null,
        "value": "campground-del-valle-family"
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-booking-facility",
          "evidence_id": "evidence-del-valle-booking-facility",
          "notes": "",
          "observation_id": "observation-del-valle-family-booking",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Tent or RV family campsites at Del Valle may be reserved online from 48 hours through 12 weeks before arrival; no more than two family campsites may be reserved for the same date per household, primary occupant, customer name, or registered vehicles.",
          "observation_id": "observation-del-valle-family-booking",
          "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"
        }
      ],
      "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"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-campground-in-park",
        "evidence_ids": [
          "evidence-del-valle-campground-in-park"
        ],
        "predicate": "located_in",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": "park-del-valle-regional-park"
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-campground-in-park",
          "evidence_id": "evidence-del-valle-campground-in-park",
          "notes": "",
          "observation_id": "observation-del-valle-campground-inventory",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The page describes Del Valle Family Campground as 150 campsites: 21 RV sites with full hookups, 124 drive-up tent sites, and five cabins, served by centrally located toilets and showers.",
          "observation_id": "observation-del-valle-campground-inventory",
          "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"
        }
      ],
      "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"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-campground-inventory",
        "evidence_ids": [
          "evidence-del-valle-campground-inventory",
          "evidence-del-valle-ebrpd-campground-inventory",
          "evidence-del-valle-camping-current-inventory"
        ],
        "predicate": "site_inventory",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": {
          "cabins": 5,
          "drive_up_tent": 124,
          "rv_full_hookup": 21,
          "total": 150
        }
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-campground-inventory",
          "evidence_id": "evidence-del-valle-campground-inventory",
          "notes": "",
          "observation_id": "observation-del-valle-campground-inventory",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-campground-inventory",
          "evidence_id": "evidence-del-valle-ebrpd-campground-inventory",
          "notes": "",
          "observation_id": "observation-del-valle-ebrpd-campground",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-campground-inventory",
          "evidence_id": "evidence-del-valle-camping-current-inventory",
          "notes": "",
          "observation_id": "observation-del-valle-camping-inventory",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The page describes Del Valle Family Campground as 150 campsites: 21 RV sites with full hookups, 124 drive-up tent sites, and five cabins, served by centrally located toilets and showers.",
          "observation_id": "observation-del-valle-campground-inventory",
          "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": [],
          "content": "The EBRPD page states that the family campground has 150 sites, including two accessible sites and 21 sites with water, sewage, and 120-volt 50/30-amp electrical hookups; toilets and showers are centrally located. It separately states that five cabin sites take up to eight people and sleep five.",
          "observation_id": "observation-del-valle-ebrpd-campground",
          "observed_at": null,
          "observer": "user-supplied page transcription",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-del-valle-park-page"
        },
        {
          "artifact_refs": [],
          "content": "The current camping page lists 150 family sites: 21 full-hookup RV sites, 124 drive-up tent sites, and five cabins; all family sites allow at most eight people and two vehicles.",
          "observation_id": "observation-del-valle-camping-inventory",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-del-valle-camping"
        }
      ],
      "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/parks/del-valle",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-del-valle-park-page"
        },
        {
          "locator": "https://www.ebparks.org/parks/del-valle/camping",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-del-valle-camping"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-campground-sanitation",
        "evidence_ids": [
          "evidence-del-valle-campground-sanitation",
          "evidence-del-valle-ebrpd-campground-sanitation"
        ],
        "predicate": "shared_facilities",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": [
          "toilets",
          "showers"
        ]
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-campground-sanitation",
          "evidence_id": "evidence-del-valle-campground-sanitation",
          "notes": "",
          "observation_id": "observation-del-valle-campground-inventory",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-campground-sanitation",
          "evidence_id": "evidence-del-valle-ebrpd-campground-sanitation",
          "notes": "",
          "observation_id": "observation-del-valle-ebrpd-campground",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The page describes Del Valle Family Campground as 150 campsites: 21 RV sites with full hookups, 124 drive-up tent sites, and five cabins, served by centrally located toilets and showers.",
          "observation_id": "observation-del-valle-campground-inventory",
          "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": [],
          "content": "The EBRPD page states that the family campground has 150 sites, including two accessible sites and 21 sites with water, sewage, and 120-volt 50/30-amp electrical hookups; toilets and showers are centrally located. It separately states that five cabin sites take up to eight people and sleep five.",
          "observation_id": "observation-del-valle-ebrpd-campground",
          "observed_at": null,
          "observer": "user-supplied page transcription",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-del-valle-park-page"
        }
      ],
      "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/parks/del-valle",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-del-valle-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-connectivity-warning",
        "evidence_ids": [
          "evidence-del-valle-connectivity-warning"
        ],
        "predicate": "connectivity_warning",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": {
          "cell_service": "not_available_per_source_warning",
          "wifi": "not_available_per_source_warning"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-connectivity-warning",
          "evidence_id": "evidence-del-valle-connectivity-warning",
          "notes": "Treat as a planning warning from the booking page, not a coverage guarantee for every carrier and location.",
          "observation_id": "observation-del-valle-tents-connectivity",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Additional Information"
          ],
          "content": "The live page places no numeric limit on tents but requires them to be on dirt or designated tent pads and prohibits tents on lawns. It also warns that cell service and Wi-Fi are unavailable.",
          "observation_id": "observation-del-valle-tents-connectivity",
          "observed_at": null,
          "observer": "Wayproof live Chrome source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-reserveamerica-del-valle-overview-110003"
        }
      ],
      "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"
        }
      ]
    },
    {
      "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-del-valle-family-booking-window",
        "evidence_ids": [
          "evidence-del-valle-family-booking-window"
        ],
        "predicate": "reservation_window",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": {
          "channel": "online",
          "maximum_advance_weeks": 12,
          "minimum_advance_hours": 48
        }
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-family-booking-window",
          "evidence_id": "evidence-del-valle-family-booking-window",
          "notes": "",
          "observation_id": "observation-del-valle-family-booking",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Tent or RV family campsites at Del Valle may be reserved online from 48 hours through 12 weeks before arrival; no more than two family campsites may be reserved for the same date per household, primary occupant, customer name, or registered vehicles.",
          "observation_id": "observation-del-valle-family-booking",
          "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"
        }
      ],
      "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"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-family-capacity",
        "evidence_ids": [
          "evidence-del-valle-family-capacity",
          "evidence-ordinance38-family-capacity"
        ],
        "predicate": "people_per_family_site",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": 8
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-family-capacity",
          "evidence_id": "evidence-del-valle-family-capacity",
          "notes": "",
          "observation_id": "observation-del-valle-family-capacity-stays-vehicles",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-family-capacity",
          "evidence_id": "evidence-ordinance38-family-capacity",
          "notes": "Section 400.3(a).",
          "observation_id": "observation-ebrpd-ordinance-38-camping",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Family campsites allow up to eight people and two vehicles. Family camping is limited to 15 consecutive nights and 30 total nights per year, with 48 hours separating reservations after a 15-night stay.",
          "observation_id": "observation-del-valle-family-capacity-stays-vehicles",
          "observed_at": null,
          "observer": "user-supplied page transcription",
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          "source_id": "source-reserveamerica-del-valle-overview-110003"
        },
        {
          "artifact_refs": [
            "PDF pages 5-6"
          ],
          "content": "Revised September 2023. Sections 400.1-400.6 require a valid permit in designated camping areas; limit family sites to eight occupants, 15 consecutive days and 30 days per year with a two-day break; regulate disturbing generators and sound devices; govern juveniles; and apply camping rules to tent, RV, cabin, and walk-in camping.",
          "observation_id": "observation-ebrpd-ordinance-38-camping",
          "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-del-valle-family-reservation-count",
        "evidence_ids": [
          "evidence-del-valle-family-reservation-count"
        ],
        "predicate": "simultaneous_family_site_limit",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": 2
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-family-reservation-count",
          "evidence_id": "evidence-del-valle-family-reservation-count",
          "notes": "",
          "observation_id": "observation-del-valle-family-booking",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Tent or RV family campsites at Del Valle may be reserved online from 48 hours through 12 weeks before arrival; no more than two family campsites may be reserved for the same date per household, primary occupant, customer name, or registered vehicles.",
          "observation_id": "observation-del-valle-family-booking",
          "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"
        }
      ],
      "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"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-family-stay-limit",
        "evidence_ids": [
          "evidence-del-valle-family-stay-limit",
          "evidence-ordinance38-family-stay-limit"
        ],
        "predicate": "stay_limit",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": {
          "maximum_consecutive_nights": 15,
          "maximum_nights_per_year": 30,
          "separation_after_maximum_stay_hours": 48
        }
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-family-stay-limit",
          "evidence_id": "evidence-del-valle-family-stay-limit",
          "notes": "",
          "observation_id": "observation-del-valle-family-capacity-stays-vehicles",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-family-stay-limit",
          "evidence_id": "evidence-ordinance38-family-stay-limit",
          "notes": "Section 400.3(b).",
          "observation_id": "observation-ebrpd-ordinance-38-camping",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Family campsites allow up to eight people and two vehicles. Family camping is limited to 15 consecutive nights and 30 total nights per year, with 48 hours separating reservations after a 15-night stay.",
          "observation_id": "observation-del-valle-family-capacity-stays-vehicles",
          "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 5-6"
          ],
          "content": "Revised September 2023. Sections 400.1-400.6 require a valid permit in designated camping areas; limit family sites to eight occupants, 15 consecutive days and 30 days per year with a two-day break; regulate disturbing generators and sound devices; govern juveniles; and apply camping rules to tent, RV, cabin, and walk-in camping.",
          "observation_id": "observation-ebrpd-ordinance-38-camping",
          "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-del-valle-family-vehicles",
        "evidence_ids": [
          "evidence-del-valle-family-vehicles",
          "evidence-ordinance38-family-vehicles"
        ],
        "predicate": "vehicles_per_family_site",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": 2
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-family-vehicles",
          "evidence_id": "evidence-del-valle-family-vehicles",
          "notes": "",
          "observation_id": "observation-del-valle-family-capacity-stays-vehicles",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-family-vehicles",
          "evidence_id": "evidence-ordinance38-family-vehicles",
          "notes": "Section 901.1(q).",
          "observation_id": "observation-ebrpd-ordinance-38-parking",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Family campsites allow up to eight people and two vehicles. Family camping is limited to 15 consecutive nights and 30 total nights per year, with 48 hours separating reservations after a 15-night stay.",
          "observation_id": "observation-del-valle-family-capacity-stays-vehicles",
          "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 page 32"
          ],
          "content": "Section 901.1 prohibits more than two vehicles at a campground site and parking off the paved pad.",
          "observation_id": "observation-ebrpd-ordinance-38-parking",
          "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-del-valle-fire-rules",
        "evidence_ids": [
          "evidence-del-valle-fire-rules",
          "evidence-ordinance38-fire-rules"
        ],
        "predicate": "fire_rules",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": {
          "adult_attendance_required": true,
          "designated_areas_only": true,
          "extinguish_before_departure": true,
          "subject_to_current_restrictions": true,
          "wood_collection_allowed": false
        }
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-fire-rules",
          "evidence_id": "evidence-del-valle-fire-rules",
          "notes": "",
          "observation_id": "observation-del-valle-fire-smoking",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-fire-rules",
          "evidence_id": "evidence-ordinance38-fire-rules",
          "notes": "Supports designated-area, attendance, extinguishing, and changing-restriction portions; it does not address wood collection.",
          "observation_id": "observation-ebrpd-ordinance-38-fire-smoking",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Fire restrictions may apply. Fires are allowed only in designated areas, must use commercially purchased wood, processed logs, or cut lumber, must remain attended by an adult, and must be extinguished before departure. Collecting wood, smoking, and vaping are prohibited.",
          "observation_id": "observation-del-valle-fire-smoking",
          "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 page 7"
          ],
          "content": "Sections 404-404.3 limit open fires to designated facilities, prohibit unattended fires, allow escalation during fire season, and prohibit smoking and vaping throughout the District.",
          "observation_id": "observation-ebrpd-ordinance-38-fire-smoking",
          "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-del-valle-gate-hours",
        "evidence_ids": [
          "evidence-del-valle-gate-hours"
        ],
        "predicate": "gate_hours",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": {
          "closes": "22:00",
          "opens": "08:00"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-gate-hours",
          "evidence_id": "evidence-del-valle-gate-hours",
          "notes": "",
          "observation_id": "observation-del-valle-gates-hours",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The campground gates are locked from 10:00 PM to 8:00 AM, and the park entrance and campground gates close daily at 10:00 PM.",
          "observation_id": "observation-del-valle-gates-hours",
          "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"
        }
      ],
      "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"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-generators-prohibited",
        "evidence_ids": [
          "evidence-del-valle-generators-prohibited"
        ],
        "predicate": "generators_allowed",
        "spatial_scope_ids": [
          "scope-del-valle-family-campground"
        ],
        "subject_id": "campground-del-valle-family",
        "temporal_scope": null,
        "value": false
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-generators-prohibited",
          "evidence_id": "evidence-del-valle-generators-prohibited",
          "notes": "",
          "observation_id": "observation-del-valle-quiet-generators",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Quiet hours are 10:00 PM to 7:00 AM. The page prohibits generators, including a separate statement that gas generators are not allowed.",
          "observation_id": "observation-del-valle-quiet-generators",
          "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"
        }
      ],
      "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"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-group-booking",
        "evidence_ids": [
          "evidence-del-valle-group-booking",
          "evidence-del-valle-camping-current-group-booking"
        ],
        "predicate": "group_camping_reservation",
        "spatial_scope_ids": [
          "scope-del-valle-park"
        ],
        "subject_id": "park-del-valle-regional-park",
        "temporal_scope": null,
        "value": {
          "channel": "phone",
          "minimum_advance_business_days": 3,
          "minimum_group_size": 17
        }
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-group-booking",
          "evidence_id": "evidence-del-valle-group-booking",
          "notes": "",
          "observation_id": "observation-del-valle-group-booking",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-group-booking",
          "evidence_id": "evidence-del-valle-camping-current-group-booking",
          "notes": "",
          "observation_id": "observation-del-valle-camping-reservations",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Groups of 17 or more are directed to group campsites. Group campsites are available by phone reservation only and require at least three business days of advance notice; requirements may differ for reservations made less than seven days ahead.",
          "observation_id": "observation-del-valle-group-booking",
          "observed_at": null,
          "observer": "user-supplied page transcription",
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          "source_id": "source-reserveamerica-del-valle-overview-110003"
        },
        {
          "artifact_refs": [],
          "content": "Camping requires a reservation. Family sites require at least two business days; group sites at least three. ADA and group reservations are phone-only. Family sites may also be booked online.",
          "observation_id": "observation-del-valle-camping-reservations",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-del-valle-camping"
        }
      ],
      "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/parks/del-valle/camping",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-del-valle-camping"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-lake-in-park",
        "evidence_ids": [
          "evidence-del-valle-lake-in-park"
        ],
        "predicate": "located_in",
        "spatial_scope_ids": [
          "scope-lake-del-valle"
        ],
        "subject_id": "lake-del-valle",
        "temporal_scope": null,
        "value": "park-del-valle-regional-park"
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-lake-in-park",
          "evidence_id": "evidence-del-valle-lake-in-park",
          "notes": "",
          "observation_id": "observation-del-valle-identity-location",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The page identifies Del Valle Regional Park as an East Bay Regional Park District park about ten miles south of Livermore, with a 4,316-acre park around a five-mile-long lake; it lists 7000 Del Valle Road, Livermore, California 94550 and coordinates 37.56917, -121.68722.",
          "observation_id": "observation-del-valle-identity-location",
          "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"
        }
      ],
      "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"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-lake-length",
        "evidence_ids": [
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          "evidence-del-valle-ebrpd-lake-length"
        ],
        "predicate": "published_length_miles",
        "spatial_scope_ids": [
          "scope-lake-del-valle"
        ],
        "subject_id": "lake-del-valle",
        "temporal_scope": null,
        "value": 5
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-lake-length",
          "evidence_id": "evidence-del-valle-lake-length",
          "notes": "",
          "observation_id": "observation-del-valle-identity-location",
          "stance": "supports"
        },
        {
          "claim_id": "claim-del-valle-lake-length",
          "evidence_id": "evidence-del-valle-ebrpd-lake-length",
          "notes": "",
          "observation_id": "observation-del-valle-ebrpd-identity",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The page identifies Del Valle Regional Park as an East Bay Regional Park District park about ten miles south of Livermore, with a 4,316-acre park around a five-mile-long lake; it lists 7000 Del Valle Road, Livermore, California 94550 and coordinates 37.56917, -121.68722.",
          "observation_id": "observation-del-valle-identity-location",
          "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": [],
          "content": "The EBRPD page places Del Valle ten miles south of Livermore, describes a five-mile lake in a 4,395-acre park, gives the address 7000 Del Valle Road, and calls the park the eastern gateway to the 28-mile Ohlone Wilderness Trail.",
          "observation_id": "observation-del-valle-ebrpd-identity",
          "observed_at": null,
          "observer": "user-supplied page transcription",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-del-valle-park-page"
        }
      ],
      "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/parks/del-valle",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-del-valle-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-del-valle-ohlone-gateway",
        "evidence_ids": [
          "evidence-del-valle-ohlone-gateway",
          "evidence-del-valle-ebrpd-ohlone-gateway",
          "evidence-ebrpd-ohlone-gateway-current"
        ],
        "predicate": "eastern_gateway",
        "spatial_scope_ids": [
          "scope-del-valle-park"
        ],
        "subject_id": "trail-ohlone-wilderness",
        "temporal_scope": null,
        "value": "park-del-valle-regional-park"
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-ohlone-gateway",
          "evidence_id": "evidence-del-valle-ohlone-gateway",
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          "content": "Fire restrictions may apply. Fires are allowed only in designated areas, must use commercially purchased wood, processed logs, or cut lumber, must remain attended by an adult, and must be extinguished before departure. Collecting wood, smoking, and vaping are prohibited.",
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    {
      "entity_id": "campground-del-valle-family",
      "kind": "campground",
      "name": "Del Valle Family Campground"
    },
    {
      "entity_id": "facility-reserveamerica-del-valle-110003",
      "kind": "booking_facility",
      "name": "Del Valle"
    },
    {
      "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"
    },
    {
      "entity_id": "park-del-valle-regional-park",
      "kind": "park",
      "name": "Del Valle Regional Park"
    },
    {
      "entity_id": "trail-ohlone-wilderness",
      "kind": "trail",
      "name": "Ohlone Wilderness Trail"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-del-valle-reserveamerica-foundation",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/sources/source-reserveamerica-del-valle-overview-110003.json",
      "reason": "Establish the source-backed Del Valle foundation from the supplied ReserveAmerica overview.",
      "record_id": "source-reserveamerica-del-valle-overview-110003",
      "record_type": "source",
      "summary": "Establish Del Valle park and family-campground knowledge from the ReserveAmerica overview while preserving inventory, permit, and operational-condition uncertainty."
    }
  ],
  "navigation": {
    "next_id": "source-reserveamerica-del-valle-site-10",
    "position": 308,
    "previous_id": "source-reserveamerica-del-valle-campsites-110003",
    "total": 587
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "Hard alcohol is prohibited. Adults 21 and older may consume beer and wine at campsites or picnic areas, but not in parking lots, on trails, or at swim beaches; group campsites require an advance beer and wine permit.",
      "observation_id": "observation-del-valle-alcohol",
      "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": [
        "IMPORTANT INFORMATION notice"
      ],
      "content": "The live page says backpacking reservations must be made by phone through EBRPD Reservations at least 48 hours in advance.",
      "observation_id": "observation-del-valle-backpacking-reservation",
      "observed_at": null,
      "observer": "Wayproof live Chrome source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-reserveamerica-del-valle-overview-110003"
    },
    {
      "artifact_refs": [],
      "content": "The page lists two swimming beaches, lifeguards during posted periods, boat rentals, and a public launch for boats of any size; it warns that boaters must comply with the Invasive Mussel Prevention Program and mandatory inspections.",
      "observation_id": "observation-del-valle-boating-swimming",
      "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": [],
      "content": "The page describes Del Valle Family Campground as 150 campsites: 21 RV sites with full hookups, 124 drive-up tent sites, and five cabins, served by centrally located toilets and showers.",
      "observation_id": "observation-del-valle-campground-inventory",
      "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": [],
      "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": [],
      "content": "Tent or RV family campsites at Del Valle may be reserved online from 48 hours through 12 weeks before arrival; no more than two family campsites may be reserved for the same date per household, primary occupant, customer name, or registered vehicles.",
      "observation_id": "observation-del-valle-family-booking",
      "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": [],
      "content": "Family campsites allow up to eight people and two vehicles. Family camping is limited to 15 consecutive nights and 30 total nights per year, with 48 hours separating reservations after a 15-night stay.",
      "observation_id": "observation-del-valle-family-capacity-stays-vehicles",
      "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": [],
      "content": "Fire restrictions may apply. Fires are allowed only in designated areas, must use commercially purchased wood, processed logs, or cut lumber, must remain attended by an adult, and must be extinguished before departure. Collecting wood, smoking, and vaping are prohibited.",
      "observation_id": "observation-del-valle-fire-smoking",
      "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": [],
      "content": "The campground gates are locked from 10:00 PM to 8:00 AM, and the park entrance and campground gates close daily at 10:00 PM.",
      "observation_id": "observation-del-valle-gates-hours",
      "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": [],
      "content": "Groups of 17 or more are directed to group campsites. Group campsites are available by phone reservation only and require at least three business days of advance notice; requirements may differ for reservations made less than seven days ahead.",
      "observation_id": "observation-del-valle-group-booking",
      "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": [],
      "content": "The page identifies Del Valle Regional Park as an East Bay Regional Park District park about ten miles south of Livermore, with a 4,316-acre park around a five-mile-long lake; it lists 7000 Del Valle Road, Livermore, California 94550 and coordinates 37.56917, -121.68722.",
      "observation_id": "observation-del-valle-identity-location",
      "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": [
        "Additional Information"
      ],
      "content": "Reservations for non-family site types are limited to one per date per party, group, household address, or primary contact. Cabin, group, backpack, and equestrian-group guests are told to expect an additional-information letter five to seven days before arrival.",
      "observation_id": "observation-del-valle-nonfamily-reservation-details",
      "observed_at": null,
      "observer": "Wayproof live Chrome source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-reserveamerica-del-valle-overview-110003"
    },
    {
      "artifact_refs": [],
      "content": "The page calls Del Valle the eastern gateway to the Ohlone Wilderness Trail, describes the trail as 28 miles connecting to Sunol and Mission Peak, and states that permits are required on portions and may be purchased at the park entrance kiosk; it separately states that backpack reservations remain available.",
      "observation_id": "observation-del-valle-ohlone-permit-statement",
      "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": [],
      "content": "Quiet hours are 10:00 PM to 7:00 AM. The page prohibits generators, including a separate statement that gas generators are not allowed.",
      "observation_id": "observation-del-valle-quiet-generators",
      "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": [
        "IMPORTANT INFORMATION and ATTENTION notices"
      ],
      "content": "The live page says family campsite reservations may be canceled online, but family changes and backpacking, equestrian, or group changes and cancellations require a phone call during weekday reservation-office hours. Email is not accepted for cancellations or change requests.",
      "observation_id": "observation-del-valle-reservation-administration",
      "observed_at": null,
      "observer": "Wayproof live Chrome source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-reserveamerica-del-valle-overview-110003"
    },
    {
      "artifact_refs": [
        "Additional Information"
      ],
      "content": "The live page places no numeric limit on tents but requires them to be on dirt or designated tent pads and prohibits tents on lawns. It also warns that cell service and Wi-Fi are unavailable.",
      "observation_id": "observation-del-valle-tents-connectivity",
      "observed_at": null,
      "observer": "Wayproof live Chrome source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-reserveamerica-del-valle-overview-110003"
    },
    {
      "artifact_refs": [],
      "content": "The page directs visitors to check current fire-danger restrictions and blue-green algae updates before travel, and warns that flooding can cause site or park closure and reservation cancellation with email or phone notice.",
      "observation_id": "observation-del-valle-volatile-alerts",
      "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"
    }
  ],
  "record": {
    "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"
  },
  "record_type": "source",
  "related_records": [],
  "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"
    }
  ]
}