CA Civ Proc Code Section 1245.250

(a)

Except as otherwise provided by statute, a resolution of necessity adopted by the governing body of the public entity pursuant to this article conclusively establishes the matters referred to in Section 1240.030.

(b)

If the taking is by a local public entity, other than a sanitary district exercising the powers of a county water district pursuant to Section 6512.7 of the Health and Safety Code, and the property is electric, gas, or water public utility property, the resolution of necessity creates a rebuttable presumption that the matters referred to in Section 1240.030 are true. This presumption is a presumption affecting the burden of proof.

(c)

If the taking is by a local public entity and the property described in the resolution is not located entirely within the boundaries of the local public entity, the resolution of necessity creates a presumption that the matters referred to in Section 1240.030 are true. This presumption is a presumption affecting the burden of producing evidence.

(d)

For the purposes of subdivision (b), a taking by the State Reclamation Board for the Sacramento and San Joaquin Drainage District is not a taking by a local public entity.