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Area of Concern 40
Chronology of Actions/Investigations

Year	Month	Action/Results	Action performed by	Project Number
1995
	May	Geophysical survey was conducted at all the “open” areas within a 2,000-foot radius of well 16, including AOC 40. Found one anomaly that may be caused by an overhead power line or subsurface disturbance.	Parsons ES	Order 67
	June-July	Nine soil-gas survey samples collected and analyzed for chlorinated and aromatic volatile organics. PCE was the only target analyte detected.	Parsons ES	Order 67
2000	January	Collected 5surface soil samples (SS1-5) and analyzed for PCE, TCE and DCE.	Parsons ES O’Brien & Gere	DO5068
2002	May	Final RCRA Facility Investigation Closure Report submitted.	Parsons	NA
2002	August	TCEQ issued approval of site closure.	TCEQ	NA