California Code, Health and Safety Code - HSC § 25207

(a) Small agriculture-related operations need an appropriate and economic means of disposing of banned, unregistered, or outdated agricultural wastes.

(b) An awareness of the problems caused by agricultural wastes has increased as information has become available from the planning process for county hazardous waste management plans conducted pursuant to Article 3.5 (commencing with Section 25135).

(c) Banned, unregistered, or outdated agricultural wastes are located in rural areas.

(d) The abandonment or illegal disposal of these agricultural wastes is a threat to water supplies and wildlife habitat.