Puget Sound Indicator Name
Onsite septic system inventory: suspected systems
Progress Indicator
Each Unit (count)
No Reporter Selected
Contributing Partners
Last Updated
12/5/2023 2:55:52 PM
Related Ongoing Programs
None provided

Number of suspected onsite septic systems without documentation

Progress Indicator Chart
Onsite septic system inventory: suspected systems

No reported data available

In Puget Sound, fecal pollution impacts water quality, harvest ability and food safety of shellfish, and presence of viruses in swimming areas. Local health jurisdictions across the Puget Sound region work to educate and provide technical assistance to homeowners with onsite septic systems to prevent pollution concerns before they arise. 

This Progress Indicator tracks the number of suspected onsite septic systems (OSS) across Puget Sound counties. Suspected onsite septic systems are identified through local health jurisdictions, who review property documents and existing public sewer lines to identify properties that are neither served by septic lines nor have documentation of a septic system with their health department. 

The data collected for this Progress Indicator illustrate progress in identifying and documenting OSS with relevant health departments to ensure proper and safe operation and maintenance of septics. 

Key Progress Indicator Results

This Progress Indicator is currently under development. 

Monitoring Program

County Local Health Jurisdictions

Data Source

Local Health Jurisdiction routine biannual reporting to Washington Department of Health. 

Critical Definitions

Suspected Onsite Septic: classification of a parcel with a property or structure that is not connected to public sewer lines and which does not have a septic system document on file with local health jurisdictions.  

Interpretation of Results

No datasets uploaded.

Reporting Guidance
Reporting Instructions

No Subcategories for this Puget Sound Indicator.