Contact Information
200 S. Spruce Street
Grand Junction, CO 81501

(970) 254-4141

Septic Systems

CODIV-19 UPDATE: Mesa County Community Development Departments (Building, Code Compliance, OWTS, and Planning) are operating with modified services to reduce in-person contact and to provide a safe working environment for both our customers and staff.  

The following are the most efficient ways to connect with our staff:

  • Email communication is encouraged for all divisions at
  • Building & OWTS Inspections - Activate the Interactive Voice Response (IVR) system by dialing 970-256-1564.
  • MCCS Lobby - The Community Development front counter is open from 8a.m. to 5p.m., Monday through Friday, no appointment necessary.    

Please call us at (970) 244-1636 or visit our online services for more information. Our website is  Other resources can be found on the County’s website at, to include information on modified department hours and services across the County. Your patience and understanding are appreciated.

The goal of the On-Site Wastewater Treatment Systems (OWTS) Deaprtment is to ensure proper onsite wastewater disposal in areas which are not served by municipal sewer.  This Department issues all OWTS/septic permits, septic clearances and reviews land use applications where an OWTS is proposed.  All OWTS installers and pumpers/cleaners must be licensed by this Department to install, pump and haul wastewater to a treatment facility.  

Interested in learning about more about the OWTS Department? 

Sign up for email updates from the OWTS Department
or any of the Community Development Departments

Additional Information