Investigative journalist Michael Collins alerted us to this news about newly disclosed TCE detects in Runkle Canyon near where KB Homes has plans to build:

KB Homes had hoped to build 461 residences in the 1,595-acre canyon, but those plans have been delayed since the summer of 2006 when Southwick and a cadre of residents who call themselves the "Radiation Rangers" (See: "Dirty Business," Nov. 1, 2007) questioned the safety of the project.

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The Reporter has obtained a December 2007 study of offsite pollution around SSFL prepared by an Arcadia-based environmental engineering firm MWH for Boeing, NASA and the Department of Energy which shows that TCE has been detected in approximately 10 percent of several dozen groundwater samples collected on Runkle Canyon property.

[…]

Around 1.73 million gallons of TCE were used at [Santa Susana Field Laboratory] as a solvent to hose down rocket engines, as the Reporter first revealed during its investigation of the Runkle Canyon-adjacent Ahmanson Ranch development. That project tanked over toxic troubles in 2003 before becoming state park land (See: "Air Apparent," Feb.13, 2003). Approximately 530,000 gallons of the carcinogen, which is a volatile organic compound, have seeped into the area's groundwater. With the current rate of remediating TCE being less than 10 gallons a year at SSFL, it will take more than 50,000 years to clean up.

Read more in Down the Test Tubes at the Ventura County Reporter (CA). For additional documents that Michael uncovered and ongoing developments in the Runkle Canyon story, see his investigative environmental news website at EnviroReporter.com.