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Serving Spokane County
Serving Spokane County
Family Owned and Operated. Downriver Septic brings decades of residential construction experience to the septic industry. We leverage our experience to effectively manage your septic project from installation to maintenance ensuring the health of your system and the environment.
For information please use the link below or call us at 509-991-6999.
On-site Septic System
An On-Site Septic System (OSS), commonly known as a septic system, treats sewage on an individual’s property in the ground. Septic systems are installed on properties that cannot be served by publicly-owned wastewater collection and treatment systems which move sewage away from properties. Proper site evaluation, system selection and layout, installation, inspections and maintenance are essential in the on-site treatment of sewage.
OSS Requirements
In Spokane County, septic systems for residential, small businesses, and apartment buildings (systems less than 3,500 gallons per day) are regulated by the Spokane Regional Health District. Please visit their site for information on compliance with regulations, permits, and inspections. Larger systems are reviewed by the State Department of Health and the State Department of Ecology.
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