If applying for a new septic system permit, PLEASE CALL AHEAD & make sure your design sheets have been submitted

and that someone is in the office to help you!  636-456-7169

Welcome to the Warren County Sanitarian’s Office

This site contains information for On-Site Sewage Systems, if you are interested in Food Protection and other Environmental issues please visit the Environmental Section at The Warren County Public Health Department.

In Warren County, property owners of all buildings where people live, work, or assemble shall provide for the sanitary treatment of all sewage from such buildings by disposal into an on-site sewage treatment system or central wastewater collection and treatment system.

These regulations were enacted for the purpose of regulating the design, construction, and modification of on-site sewage treatment systems in order to protect and promote the public health, safety, economic well being, and to prevent the spread of infectious, contagious, communicable, or dangerous diseases into Warren County Missouri. Diseases that can be spread by sewage include; Campylobacteriosis, Cryptosporidiosis, Escherichia coli Diarrhea, Encephalitis, Gastroenteritis, Giardiasis, Hepatitis A, Leptospirosis, Methaemoglobinaemia, Poliomyelitis, Salmonellosis, Shigellosis, Paratyphoid Fever, Typhoid Fever, and Yersiniosis.


Bill Roemer – Warren County Sanitarian

101 Mockingbird Ln
Suite 201
Warrenton, MO 63383
Phone: 636-456-7169
Fax: 636-456-0447


Sanitarian Forms