You must have a permit to construct a septic system (Conventional or Alternative). Environmental Services is responsible for regulating the installation of alternative on-site wastewater disposal systems. Your septic system construction will be inspected. Please see the documents below for more information. Note: If you are planning to construct a new septic system, you may need to arrange for a site inspection (perc test) to determine suitability for a septic system on your property. If you would like to email requests for On-Site Septic Systems & Percolation results, click here.