San Mateo meeting draws sharp debate over proposed Horizon treatment campus at 101 North El Camino Real

San Mateo City Council held a special informational meeting Wednesday, April 15, where Horizon Treatment Services presented a plan to open a 69‑bed sobering, detox and residential treatment campus at 101 North El Camino Real. The meeting drew more than two dozen public commenters and hours of council questioning about safety, traffic, zoning and the state grant that funds the project.

Horizon chief operating officer Daria Yuzesh told the council the program would be licensed as a medical-model treatment facility and that nearly all admissions are voluntary. "Every single client who comes to Horizon is arriving to us on a voluntary basis," she said, describing intake risk assessments, a continuum from sobering to detox to residential care, and procedures for transporting clients at discharge.

Why it matters: Neighbors said the El Camino site sits too close to schools and single‑family homes and urged the city to back an alternative county site on Mahler Road (also discussed as "Mueller"/"Mahler" in public comments). Supporters said relocating the project could delay services for months or years. Horizon and several council members repeatedly stressed that today’s meeting was informational and that the council could not approve or block the facility at this session.

Public comment split sharply. In an organized presentation, a community speaker said "a vote for Mahler Road is a vote for listening to the community" and cited more than 500 letters opposing the El Camino location and the grant’s campus requirement and a projected 17,000 annual drop‑offs cited in the application. Catherine Collins, vice chair of the Episcopal Day School board, said the school at 1 El Camino Real is about 800 feet from the proposed campus and asked directly: "Will these drop‑offs be by police and ambulance with sirens and lights flashing?" She asked for traffic and safety studies before a final site decision.

Other residents who supported the El Camino site described local needs and urged speed. "How do you justify choosing a site that delays care for years?" asked David Long, pointing to Horizon statements that an alternative Mahler Road site could be operational much faster.

City and county roles: Zak Dahl, San Mateo's community development director, told the meeting that state legislation sharply limits the city’s discretion for facilities that meet the statute’s objective criteria. "Overall, based on the state legislation, the city's regulatory authority is extremely limited and focused on a ministerial or nondiscretionary process once an application is filed," he said, listing the three itemized checks staff would make once an application is submitted: objective design standards, objective zoning standards and the CEQA pathway.

Horizon answered detailed operational questions from council members. Daria said the sobering component would be the smallest piece of the campus (the grant application proposed up to 16 sobering beds with a theoretical maximum of 24‑hour stays) and that residential stays typically run 30–120 days (average 45–60), while the sobering flow estimates cited in the grant represent a high‑end hypothetical. Program manager Jeffrey Essex described surveillance, staffing ratios and 30‑minute observation checks used at other Horizon sites; he said incidents in which clients had to be removed by law enforcement occurred at a much smaller Palm Avenue facility and that Horizon had tightened policies after one serious incident there.

Funding and site flexibility: When asked whether the state's reported $25 million award would transfer to a different address if the county or community chose Mahler Road instead, Horizon replied that the grant application named 101 North El Camino as the awarded site and that "there is no communication between Horizon and the state or no confirmation that any other location would be approved." The company said changes to awarded sites are rare and handled on a case‑by‑case basis.

Public‑safety figures: San Mateo police and fire chiefs said they were still learning details about the proposal but cited local experience. The fire chief noted about 88 yearly responses to the Palm Avenue detox facility and said he expected similar or slightly higher service needs for a larger campus. Chiefs and Horizon representatives agreed on the need for early coordination on EMS, parking and night response.

Next steps: Horizon staff offered to publish the grant application materials and site‑selection criteria on a public web page (a QR code and a public Google document were referenced) and volunteered to hold regular office hours and form a working group with neighbors to review operational policies. Mayor Lorraine closed the meeting without a vote; council members said they would continue to seek answers from Horizon and the county.

What the meeting did not do: The council did not vote on any motion, ordinance or letter of support or opposition. City staff noted no application had been filed with the city, and that formal ministerial review would begin only if and when an application is submitted.

Key quotes

"Every single client who comes to Horizon is arriving to us on a voluntary basis," — Daria Yuzesh, Horizon chief operating officer.

"A vote for Mahler Road is a vote for listening to the community," — organized presenter (introduced as Linda Surgival).

"Will these drop‑offs be by police and ambulance with sirens and lights flashing?" — Catherine Collins, vice chair, Episcopal Day School board.

"There is no communication between Horizon and the state or no confirmation that any other location would be approved," — Daria Yuzesh on whether the $25 million grant could be moved to a different site.

What to watch: Whether the county (the grant applicant partner) and the state issue a formal determination about site flexibility; whether Horizon produces the requested localized data (traffic studies, local client demographic breakdowns and historical incident reports for comparable facilities); and whether a formal application is filed that triggers the city’s ministerial review checklist.

(Reporting note: This account is based solely on the San Mateo special meeting transcript and on statements made by meeting participants. No council action occurred at the meeting.)