Sewage and Septic Information

Commercial and Residential Septic System Applications

When submitting a septic system application, please include a detailed site plan, payment, and any documents that may be pertinent to your property. Checks are to be made payable to FCCHD.

There are several options for submission:

  • To mail your application:

    • Flathead County Environmental Health Department, 1035 First Ave W, Kalispell MT 59901

  • To e-mail your application:


  • Pay over the phone with a credit card

    • 406-751-8130

  •  Drop off your application with check in our drop box at 40 11th St W. Suite 210, Kalispell MT 59901 or in-person and pay with a variety of methods.

The Land Research Request Form is to be filled out for all inquiries about a specific property. These will be automatically emailed to us and addressed in the order received.

Land Research Request Form
Commercial Evaluation and Septic System Application
Residential Evaluation and Septic System Application

For more information about the septic permit approval process, please visit the Septic System Permitting Process Website.

Sewage Treatment System Services

Activities of this program deal with compliance with the Flathead County Regulations for Sewage Treatment Systems. Permitting, site evaluations and inspection of sewage treatment installations are the primary program activities.

Ground Water Monitoring Information

Environmental Health Services Contact Info

1035 1st Ave West
Kalispell, MT 59901 – 2nd Floor


406-751-8130 main line                                 Office Hours
406-751-8131 fax                                            Monday, Tuesday, Thursday, Friday 8 am -5 pm
406-751-8144 air quality line                          Wednesday Closed 8:00am -9:30am Open 9:30am -5 pm