environment if released into the workplace or the environment (California Health and Safety Code, Section 25501).

Hazardous Materials Release Site: Any area, location, or facility where a hazardous material has been released or threatens to be released to the environment.

Hazardous Waste: A waste substance that, because of its quantity, concentration, or physical, chemical, or infectious characteristics, may either cause, or significantly contribute to an increase in mortality or an increase in serious illness, or pose a substantial present or potential hazard to human health or the environment when improperly treated, stored, transported, disposed of, or otherwise managed (California Health and Safety Code, Section 25117).

Historic: A historic building or site is one that is noteworthy for its significance in local, state, or national history or culture, its architecture or design, or its works of art, memorabilia, or artifacts.

Historic Context: A narrative description of the broad patterns of historical development in a community or its region that is represented by cultural resources. A historic context statement is organized by themes such as economic, residential, and commercial development.

Historic District: A district geographical area or neighborhood containing a collection of residential and/or commercial historical buildings which generally represents a significant aspect of the community’s architectural and/or development history, and has been designated by the City Council.

Historic range: The geographic distribution of a species at or shortly before the beginning of written records of species abundance and distribution

Historic Resource: A general term that refers to buildings, areas, districts, streets, sites, places, structures, outdoor works of art, natural or agricultural features, and other objects having a special historical, cultural, archaeological, architectural, community, or aesthetic value, and are usually fifty years of age or older.

Household: According to the Census, a household is all persons living in a dwelling unit, whether or not they are related. Both a single person living in an apartment and a family living in a house are considered households.

Housing Unit, Dwelling Unit: A room or group of rooms used by one or more individuals living separately from others in the structure, with direct access to the outside or to a public hall and containing separate toilet and kitchen facilities.