All residential, commercial, and industrial uses which have human occupancy shall have sanitary sewer. The sanitary sewer system shall be connected to an existing public sanitary sewer system and shall consist of a closed system of sanitary sewer mains and lateral branch connections to each structure or lot upon which a structure is to be built. Sanitary sewer lines are to be of sufficient size and design to collect all sewage from all proposed or portable structures within the subdivision or development.

On a case-by-case basis, the Board of Trustees may approve individual sewage disposal systems that comply with Weld County Health Department standards. However, no new addition, upgrade, or major repair to an individual sewage disposal system will be permitted if the property is located within four hundred (400) feet of a municipal or sanitation district collection line, measured through existing sewer easements or utility rights-of-way, except where such connection is not feasible or has been denied by the Town or district.