Underdeveloped parcels adjacent to creeks.

This is a Geology layer of the SF Bay Area developed by USGS. The source data and the metadata can be accessed here:

Vacant Parcels north of 580 within 50 ft of an above ground creek

Summary: This layer was created to depict industrial land areas present in 1968. The layer is intended to contribute to a larger mapping and modeling effort designed to spatially depict land areas that may be sources of Polychlorinated Biphenyls (PCBs) or mercury in the San Francisco Bay Area. The land areas are termed “old industrial” due to their presence prior to roughly 1970, the timeframe when PCB production in the U.S. ceased. Old industrial land parcels in Alameda, Contra Costa, San Mateo, Santa Clara and Solano counties are depicted. Parcels in the datalayer are defined via the most currently available assessor’s parcel data for each county.

Underdeveloped parcels adjacent to creeks.

1000 ft buffer around 880, 980, and the section of 580 that borders west Oakland. These areas are currently being considered for PCA designation.

Census tracts below 580 that do not have enough public green space