Delta County requires that a permit be issued for the installation, repair, replacement or alteration of any new or existing on-site wastewater treatment systems (OWTS), formerly known as individual sewage disposal systems (ISDS), in Delta County.
All major repairs, replacement, alterations of existing OWTS require a permit. An on-site wastewater treatment system (OWTS) application must be filled out and submitted to the Delta County Health Department prior to construction. For more detailed information, see the OWTS Instructions.
Soils and Site Evaluation Application evaluates the soil porosity and permeability for the installation of on-site wastewater treatment system (OWTS). This application is used for vacant undeveloped land and does not serve as permit to install an OWTS.