Metro Gold Line Foothill Extension Phase 2B - Supplemental EIR - San Dimas Parking Lot Relocation

Metro Gold Line Foothill Extension Phase 2B - Supplemental EIR - San Dimas Parking Lot Relocation

Phase 2B of the Metro Gold Line Foothill Extension (Project) is a 12.3-mile extension of the existing Metro Gold Line Light Rail Transit line from its current terminus in the City of Azusa, located in Los Angeles County, to the Montclair Transcenter, located in San Bernardino County. See map of project location in Figure NOP-1. In 2013, the Metro Gold Line Foothill Extension Construction Authority (“Authority”) certified a Final Environmental Impact Report (“FEIR”) and approved the Project. A detailed description of the Project is included in the FEIR and four addenda there to adopted by the Authority (State Clearinghouse No. 2010121069). In 2019, the Authority certified a Supplemental Environmental Impact Report (SEIR) to the 2013 FEIR which addressed changes to the phasing of construction and operation of the Project and identified a new traffic/transportation mitigation measure. In 2021, the Authority also certified the 2021 SEIR to the 2013 FEIR and subsequent environmental actions, which addressed modifications to construct surface parking lots (instead of enclosed parking structures, as previously approved) at the Glendora, San Dimas, La Verne, and Pomona Stations. On June 17, 2021, the City of San Dimas in cooperation with the Construction Authority approved a binding letter of intent to relocate the San Dimas parking lot. Parking for the San Dimas Station would be relocated from the location approved in the 2021 SEIR to a new location south of the project right-of-way between Monte Vista Avenue and San Dimas Avenue (NOP-2). The proposed new location is currently used as an existing San Dimas Park & Ride lot for Foothill Transit. The proposed new location would be redeveloped to accommodate the same number of parking spaces as identified for the approved parking location in San Dimas. The Authority also proposes new roadway and pedestrian access to the San Dimas Station. The approved parking facility assessed in the 2021 SEIR was located two blocks east along Arrow Highway, south of the project right-of-way and west of Walnut Avenue (NOP-3). No modifications are proposed for the parking facilities at the Glendora, La Verne, Pomona, Claremont, and Montclair Stations. In response to these proposed changes, the Authority will be initiating the preparation of a SEIR to evaluate the potential for significant impacts that may result from the proposed changes at the San Dimas Station.

San Dimas

Los Angeles

California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Inland Deserts Region 6 (CDFW), California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Transportation, District 7 (DOT), California Department of Transportation, District 8 (DOT), California Department of Transportation, Division of Aeronautics (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), California Energy Commission, California Highway Patrol (CHP), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), California State Lands Commission (SLC), Department of Toxic Substances Control, Office of Historic Preservation, State Water Resources Control Board, Division of Water Quality, California Native American Heritage Commission (NAHC)

California Native American Heritage Commission (NAHC)

Transportation:Rail (Parking lot designated for San Dimas Station)

Redevelopment

Aesthetics, Air Quality, Biological Resources, Cultural Resources, Drainage/Absorption, Energy, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Noise, Population/Housing, Public Services, Recreation, Solid Waste, Transportation, Utilities/Service Systems