MASON COUNTY SANITATION & FLOODPLAIN
ON-SITE SEWAGE FACILITIES | SEPTIC PERMITS & DEVELOPMENT | FLOODPLAIN PERMITS
Mason County OSSF Designated Officer
Phone Hours: 8:00 A.M to 5:00 P.M. | Monday - Friday
For after-hours, please contact via email using the email information below
PHONE: (325) 347-2477
In reference to the Mason County Rules for On-Site Sewage Facilities amended by-law Section 10 (a), "Regardless of the size or number of acres contained in the property, all new on-site sewage facilities must be permitted."