A tax imposed pursuant to this chapter is a special tax and not a special assessment, and there is no requirement that the tax be apportioned on the basis of benefit to any property. However, a special tax levied pursuant to this chapter may be on or based on a benefit received by parcels of real property, the cost of making facilities or authorized services available to each parcel, or some other reasonable basis as determined by the legislative body.
Ca. Gov. Code § 53325.3