Cal. Pub. Res. Code § 5786.5

(a) If a district was formed without the power of eminent domain, the district shall not exercise eminent domain to acquire any real or personal property, except as provided by subdivision (d).
(b) If a district was formed with the power to acquire any real or personal property by eminent domain within the boundaries of the district, the district shall comply with the requirements of the Eminent Domain Law, Title 7 (commencing with Section 1230.010) of Part 3 of the Code of Civil Procedure.
(c) In addition to the requirements imposed by subdivision (b), before a district may exercise the power of eminent domain, it shall first obtain the approval of the city council if the property is located in incorporated territory or the county board of supervisors if the property is located in unincorporated territory. The district shall notify the property owner of the district’s request to the city council or county board of supervisors. The district shall mail the notice to the property owner at least 20 days before the date on which the city council or county board of supervisors will act on the district’s request.
(d)
1. (1) If a district was formed with the power to acquire real or personal property by the power of eminent domain, it shall not exercise that power if a majority of the voters voting upon the question are in favor of the question at a general district or special election. If a district was formed without the power to acquire real or personal property by the power of eminent domain, it may exercise that power if a majority of the voters voting upon the question are in favor of the question at a general district or special election.
2. (2) The board of directors may adopt a resolution placing the question on the ballot. Alternatively, upon receipt of a petition signed by at least 25 percent of the registered voters of the district, the board of directors shall adopt a resolution placing the question on the ballot.
3. (3) If the question is submitted to the voters at a general district election, the notice required by Section 12112 of the Elections Code shall contain a statement of the question to appear on the ballot. If the question is submitted to the voters at a special election, the notice of election and ballot shall contain a statement of the question.
4. (4) Before circulating any petition pursuant to this subdivision, the proponents shall publish a notice of intention which shall include a written statement not to exceed 500 words in length, setting forth the reasons for the proposal. The notice shall be published pursuant to Section 6061 of the Government Code in one or more newspapers of general circulation within the district. If the district is located in more than one county, publication of the notice shall be made in at least one newspaper of general circulation in each county.
5. (5) The notice shall be signed by at least one, but not more than three, proponents and shall be in substantially the following form:
  “Notice of Intent to Circulate Petition
  Notice is hereby given of the intention to circulate a petition affecting power of eminent domain of the ______ (name of the district). The petition proposes that ______ (description of the proposal).”
6. (6) Within five days after the date of publication, the proponents shall file with the secretary of the board of directors a copy of the notice together with an affidavit made by a representative of the newspaper in which the notice was published certifying to the fact of publication. After the filing, the petition may be circulated for signatures.
7. (7) Sections 100 and 104 of the Elections Code shall govern the signing of the petition and the format of the petition. A petition may consist of a single instrument or separate counterparts. The proponents shall file the petition, together with all counterparts, with the secretary of the board of directors. The secretary shall not accept a petition for filing unless the signatures have been secured within six months of the date on which the first signature was obtained and the proponents submitted the petition to the secretary for filing within 60 days after the last signature was obtained.
8. (8) Within 30 days after the date of filing a petition, the secretary of the board of directors shall cause the petition to be examined by the county elections official, in accordance with Sections 9113 to 9115, inclusive, of the Elections Code, and shall prepare a certificate of sufficiency indicating whether the petition is signed by the requisite number of signers.
9. (9) If the certificate of the secretary shows the petition to be insufficient, the secretary shall immediately give notice by certified mail of the insufficiency to the proponents. That mailed notice shall state in what amount the petition is insufficient. Within 15 days after the date of the notice of insufficiency, the proponents may file with the secretary a supplemental petition bearing additional signatures.
10. (10) Within 10 days after the date of filing a supplemental petition, the secretary shall examine the supplemental petition and certify the results in writing of his or her examination.
11. (11) The secretary shall sign and date a certificate of sufficiency. That certificate shall also state the minimum signature requirements for a sufficient petition and show the results of the secretary’s examination. The secretary shall mail a copy of the certificate of sufficiency to the proponents.
12. (12) Once the proponents have filed a sufficient petition, the board of directors shall adopt the resolution required by paragraph (2).