Section 32-11-666 - Assessment of district sewers(1) The cost of district sewers may be assessed upon all the assessable property in the improvement district, in proportion to the special benefits derived to each of the several tracts comprising the assessable property and on a front-foot, area, zone, or other equitable basis. The cost of subdistrict laterals shall be assessed in like manner upon all the assessable property in the subdistrict.(2) The acquisition, however, of any submain may be omitted until such time as it may be required, in which case subdistricts so left without submains shall not be assessed for any part of the cost of submains acquired along, with, and as a part of the sewer district.(3) Whenever submains so omitted are required and are constructed, they may be ordered as provided for other sewers, and their cost shall be assessed to the subdistricts which are supplied with submains.L. 69: p. 808, § 179. C.R.S. 1963: § 89-21-179.