How Lake Access Guide verifies a listing
We look for a statement from the entity that controls the shoreline: a park agency, city, county, federal land manager, resort, club, or operator. A travel blog does not establish permission. A water sample does not establish access. And access permission does not establish present water conditions.
The source ladder
First choice: the managing agency's page for the exact beach or park. Second: a current rule, fee page, annual schedule, or superintendent order from that same manager. Third: another government agency with direct responsibility for the water or property. We do not use review sites, scraped business directories, social posts, or search snippets as the basis for an access claim.
Five facts that stay separate
Permission: whether swimming is allowed at a named access point. Operating status: whether the facility is open on a particular date. Water conditions: samples, blooms, weather, visibility, temperature, and physical hazards. Supervision: whether lifeguards are actually posted. Practical access: parking, reservations, fees, hours, and capacity. Combining them produces bad advice.
Freshness rules
Every access-point record needs an official URL and a verification date. The build stops after 45 days until the source is checked again. Any explicit alert must also have an expiry date. That protects future edits from shipping old facts, but it cannot retract HTML already online. The launch site therefore avoids live open/closed labels wherever a stable access description and official status link can do the job.
Conflicting official sources
Conflicts are printed, not averaged away. Lake Mead is the clearest example: one current NPS record calls part of Boulder Beach designated swim areas while another says the recreation area has no designated swim beaches. The guide therefore uses the narrower description “NPS-listed beach area” and links the controlling rules.
Frequently asked questions
Why are some fees described as published when checked?
Because a number can be accurate on the verification date and still change later. The wording preserves the date boundary and the official link.
Why not show a green or red water badge?
A static badge would collapse samples, advisories, weather, access, and supervision into one claim. The responsible source and its update time vary by lake.