Cal. Education Code § 32241

(a) The State Department of Health Services shall conduct a sample survey of schools in this state for the purpose of developing risk factors to predict lead contamination in public schools. The survey shall include schools that are representative of the state by geographical region and size of enrollment. The schools to be surveyed shall be selected on the basis of their ability to provide data necessary to make scientifically valid estimates of the nature and extent of lead hazards. Risk factors shall include, but are not limited to, location in relation to high-risk areas, age of the facility, likely use of lead paint in or around the facility, numbers of children enrolled under the age of six, and results of lead screening programs established pursuant to Chapter 5 (commencing with Section 105275) of Part 5 of Division 103 of the Health and Safety Code. (b) For purposes of this article, “schools” mean public elementary schools, public preschools, and public day care facilities. (c) For purposes of this article, “public preschools” and “public day care facilities” mean preschools and day care facilities, respectively, located on public school property.