1. Resolution: Protect King County Waters from Failing On-Site Septic Systems Darrell Rodgers, PhD Public Health - Seattle & King County Environmental Health Services Board of Health February 18, 2016

2. On-Site Septic Systems (OSS) in King County  Estimated: 40,000-60,000 OSS in King County  More than 20,000 OSS in King County were installed prior to modern safety standards  An unknown number of failing septic systems in King County contribute to water contamination On-Site Septic Systems (OSS) in King County

3. OSS Public Health Risks  Waterborne disease outbreaks  Drinking water  Contact with surface water  Consumption of shellfish  Safety risk to children OSS Environmental Health Risks  Groundwater pollution  Marine water pollution  Storm water pond pollution  Closure of shellfish beds OSS Put King County Health at Risk

4.  Local, State and Federal regulations require King County to provide OSS oversight  No existing capacity to perform inspections or proactively address problems before OSS fail  No sustainable funding source for program King County’s Responsibility

5. King County Agencies and Local Jurisdictions are encouraged to: 1.Develop a list of all septic systems located in King County 2.Update the King County On-site Septic System Management Plan 3.Seek sustainable funding to support a countywide system to oversee the proper management of septic systems. Resolution