California Code, Water Code - WAT § 25825.3

(1) His or her land, or a described portion of it, is used for residential or commercial purposes and has, for five years immediately prior to the date of filing a petition pursuant to this section, been irrigated or supplied water, wholly or partially, from a water system not owned or operated by the district.

(2) For five years immediately prior to the date of filing a petition pursuant to this section, his or her land, or a described portion of it, has never received water service from the district of any nature and the board of directors of the district has not, at any time prior to filing the petition, adopted a plan for future service of water to the lands, which plan may provide for the landowner to pay all costs of providing facilities to transport water from the nearest point at which the district has water available to the lands made subject to the petition.

(3) For five years immediately prior to the date of filing a petition pursuant to this section, his or her land, or a described portion of it, was served with water received from wells not owned, maintained, or operated by the district and which land and wells are not supplied water of any nature from the district, including, but not limited to, surface, subsurface, or seepage waters, which waters would be suitable for agricultural or domestic purposes.