It may require any resident or property owner in the district who desires to have any house, habitation, or structure connected to a sewer or drainage disposal line owned by the district to pay his proportionate share of the cost of the line, either by an increased installation charge or by other arrangement with the district, if he did not contribute to the cost of the acquisition, construction, or installation of the line by the district.
Source:
Section 6520.2, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=6520.2..