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Supervisors uphold Spring Canyon project addendum but ask for wildlife coordination with conservancy
Summary
The board denied an appeal challenging an addendum to the Spring Canyon Final EIR and approved a CUP modification application, finding the project did not require a supplemental EIR. The board asked appellants and the applicant to meet with the Santa Monica Mountains Conservancy on wildlife‑corridor protections.
The Los Angeles County Board of Supervisors on Tuesday denied an appeal of a Regional Planning Commission approval and accepted an addendum to the certified Final Environmental Impact Report (FEIR) for the Spring Canyon project in the unincorporated Santa Clarita Valley, voting 4–0 to allow the project to proceed with existing mitigation.
The dispute centered on whether new information — notably the 2020 California Department of Fish and Wildlife (CDFW) candidate listing for the Southern California mountain lion — requires a subsequent or supplemental EIR under CEQA to re‑evaluate wildlife‑corridor impacts. The appellants argued that the change in circumstances and access constraints merited further environmental review.
What the board decided and why - Regional Planning staff told the board the project’s FEIR (originally certified in 2004 and amended multiple times, most recently in 2019) had already analyzed wildlife movement, including mountain lions, and included mitigation measures the department considers feasible and adequate. Deputy Director David DeGrazia said the 2020 CDFW candidate listing “does not increase or introduce additional environmental impacts to the project that was previously analyzed.” - The CUP modification under consideration does not change the approved subdivision design or scope of development, Regional Planning said, and therefore an addendum — not a supplemental EIR — was appropriate. - The board approved the addendum and CUP modification by motion (mover: Supervisor Solis; second: Supervisor Mitchell); vote 4–0.
Points of contention - Access and fire safety: Appellants and local residents raised concerns about ingress and egress for the first phase, including a narrow underpass and whether the project phases could allow 300 units before required secondary access or fire protection was established. Regional Planning said the project provides three means of access and that two must be constructed before homes in Phase 1; the project also carries a condition that transfers a fire‑station lot to the county for a possible future station. - Wildlife corridors and mitigation timing: Paul Edelman of the Santa Monica Mountains Conservancy urged the board to require dedication of 270 acres of open space simultaneously with grading permits rather than deferring that mitigation until much later. Appellants and local groups said culverts and underpasses used by mountain lions must be improved before grading.
Board direction - Though the board approved the addendum and CUP modification, Supervisors asked the appellant and project proponents to coordinate with the Santa Monica Mountains Conservancy and county staff to refine wildlife‑corridor measures and to consider the Conservancy’s request to time open‑space dedications to earlier project milestones. Supervisor Mitchell specifically asked that the appellant meet with the Conservancy and county staff to address wildlife connectivity and emergency access concerns.
Background and project scope - Regional Planning recapped that the original Spring Canyon subdivision was approved in 2004 (542 units) and has had four tentative map amendments since; the applicant described the current proposal as about 492 housing units subject to development sequencing obligations from prior approvals.
Public comment and community concern - Multiple residents and organizations, including Santa Clarita Organization for Planning and the Environment, urged the board to require stronger safeguards for wildlife movement and to ensure safe emergency access for residents. The board’s approval does not eliminate mitigation obligations already adopted; it keeps the project under the previously adopted mitigation framework while directing further coordination.
Implementation note: Regional Planning and the applicant will continue to work through the remaining permit and mitigation sequencing; the board asked for early coordination with the Conservancy on wildlife connectivity and with the Fire Department on access and fuel modification plans.
