"New Hidden Lake Pump Station"(PDF). King County, Department of Natural Resources and Parks, Wastewater Treatment Division. Archived from the original(PDF) on September 22, 2008. Retrieved March 25, 2009.
"Boeing Creek Trunk Sewer Replacement"(PDF). King County, Department of Natural Resources and Parks, Wastewater Treatment Division. Archived from the original(PDF) on September 22, 2008. Retrieved March 25, 2009.
"New Hidden Lake Pump Station"(PDF). King County, Department of Natural Resources and Parks, Wastewater Treatment Division. Archived from the original(PDF) on September 22, 2008. Retrieved March 25, 2009.
"Boeing Creek Trunk Sewer Replacement"(PDF). King County, Department of Natural Resources and Parks, Wastewater Treatment Division. Archived from the original(PDF) on September 22, 2008. Retrieved March 25, 2009.