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Controversy Surrounds Proposed Summer Camp in Castro Valley

3/5/2026, 8:17:44 AM

Overview of the Proposed Project

The Mosaic Project, a nonprofit organization based in Oakland, is seeking to establish a summer camp in Castro Valley, California, aimed at serving 1,000 children from the Bay Area. The proposed camp would occupy 37 acres along Cull Canyon Road and include 12 cabins, a dining hall, and a staff residence. The project has been in development since 2018, following a land donation valued at $1.9 million. However, it has encountered significant opposition from local residents and regulatory bodies.

Opposition and Concerns

The Castro Valley Municipal Advisory Council and the West County Board of Zoning Adjustments have expressed strong reservations about the project. Concerns include potential fire hazards, water supply issues, and traffic impacts. A member of the zoning board highlighted life safety as a primary concern, stating, “My issues are life safety, fire hazard, lack of water supply.” Additionally, Teddy Seibert, a zoning board member and winery owner, recused himself from the vote, citing potential conflicts with his agricultural practices.

Local residents have voiced their apprehensions through various channels, including a Facebook post that garnered nearly 100 comments, predominantly opposing the camp. Critics argue that the camp's location poses serious safety risks, particularly in the event of wildfires, as it is situated in a High Fire Hazard Severity Zone with limited access routes. One resident remarked, “The site chosen by the project developers is overwhelmingly misguided and unsuitable.”

Support for the Project

Despite the opposition, some community members support the Mosaic Project. Colleen Breitenstein, a resident of the canyon area, expressed her enthusiasm, stating, “I think this camp would be amazing. I want to take my children to this camp.” Proponents argue that the camp would provide valuable outdoor experiences for children, promoting nature engagement and reducing screen time.

Official Responses and Safety Measures

In response to safety concerns, the Mosaic Project has stated that it has consulted with fire safety experts and will not operate on days designated as “red flag fire weather days.” The organization also claims that its plans have been thoroughly analyzed for traffic flow and environmental impact, asserting that transportation will be managed through compliant bus services.

Mosaic has addressed water supply concerns by stating that its design has been approved by the state and that it will not operate its water system without full certification from California authorities. The organization maintains that there are no compatibility issues with adjacent land uses, including the nearby winery.

Next Steps

The proposal is set to be reviewed by the planning board of the Alameda County Board of Supervisors, which will make a decision on the conditional use permit. If approved, the project will still require additional state and county permits for construction and infrastructure development.

Conflicting Reports & Gaps

While the Mosaic Project emphasizes its commitment to safety and environmental considerations, local residents remain skeptical. The divide between supporters and opponents highlights the complexities of land use and community safety in Castro Valley. The outcome of the planning board's decision will be pivotal in determining the future of the proposed summer camp.

Verbatim Quotes

  • “My issues are life safety, fire hazard, lack of water supply,” — Member of the Castro Valley Municipal Advisory Council
  • “The site chosen by the project developers is overwhelmingly misguided and unsuitable…” — Local resident
  • “I think this camp would be amazing. I want to take my children to this camp.” — Colleen Breitenstein, local resident