California Code, Health and Safety Code - HSC § 33030

(1) An area that is predominantly urbanized, as that term is defined in Section 33320.1, and is an area in which the combination of conditions set forth in Section 33031 is so prevalent and so substantial that it causes a reduction of, or lack of, proper utilization of the area to such an extent that it constitutes a serious physical and economic burden on the community that cannot reasonably be expected to be reversed or alleviated by private enterprise or governmental action, or both, without redevelopment.

(2) An area that is characterized by one or more conditions set forth in any paragraph of subdivision (a) of Section 33031 and one or more conditions set forth in any paragraph of subdivision (b) of Section 33031.

(1) Inadequate public improvements.

(2) Inadequate water or sewer utilities.

(3) Housing constructed as a government-owned project that was constructed before January 1, 1960.