Impervious surface.
San José Municipal Code § 20.200.555
in effectAn "impervious surface" is any surface, on or above ground, that prevents the infiltration or passage of water into the soil. Impervious surfaces include, but are not limited to, non-absorbent rooftops, paved or covered patios, driveways, parking lots, paved walkways, compacted soil or rock, and streets. (Ord. 26995.)
Source: San José Municipal Code (Municode library)URL: https://library.municode.com/ca/san_jose/codes/code_of_ordinancesFetched: 7/25/2026