Cal. Government Code § 53321.5

At the time of the adoption of the resolution of intention to establish a community facilities district, the legislative body shall direct each of its officers who is or will be responsible for providing one or more of the proposed types of public facilities or services to be financed by the district, if it is established, to study the proposed district and, at or before the time of the hearing, file a report with the legislative body containing a brief description of the public facilities and services by type that will in the officer’s opinion be required to adequately meet the needs of the district and the officer’s estimate of the cost of providing those public facilities and services. If the purchase of completed public facilities or the payment of incidental expenses is proposed, the legislative body shall direct its appropriate officer to estimate the fair and reasonable cost of those facilities or incidental expenses. If removal or remedial action for the cleanup of any hazardous substance is proposed, the legislative body shall (a) direct its responsible officer to prepare or cause to be prepared, a remedial action plan based upon factors comparable to those described in Section 79205 of the Health and Safety Code or (b) determine, on the basis of the particular facts and circumstances, that shall be comparable to those described in Section 79225 of the Health and Safety Code, that the remedial action plan is not required or (c) condition financing of the removal or remedial action upon approval of a remedial action plan pursuant to Article 12 (commencing with Section 79195) of Chapter 5 of Part 2 of Division 45 of the Health and Safety Code. All of those reports shall be made a part of the record of the hearing on the resolution of intention to establish the district.