Cal. Water Code - WAT § 48300. Section 48300.
Whenever land is excluded from the district or land is included in the district pursuant to this part, the board shall file a certificate with the Secretary of State listing:
(a)
The name of the district.
(b)
The effective date of the exclusion or inclusion.
(c)
The county or counties in which the district is located, and a description of the excluded or included land, or reference to a map showing the boundaries of such excluded or included land, which map shall be attached to the certificate, or reference to the county recorder’s office where a description of such boundaries has been recorded.
If any order adopted by the board pursuant to this part with respect to the exclusion or inclusion of land contains all of the information required to be in the certificate, the board may file a copy of the order in lieu of the certificate.