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AOC Work Plans would not be issued at this date if the documents were to be submitted. Thi disposition of each tank is as follows: Previous Investigations UST 18820001/18822 UST numbers 18820001 and 18822 are believed to be the same tank,a 10,)00-gallon diesel tank located west of the Electric and Lunch Room Building on the south portio i of the Site(Plate 4.1.2). The UST system failed a precision test on November 18,2001, and the pr duct line was repaired on December 15, 1988. On August 27, 1993,the UST was removed and oversight of the PHS- EHD at which time two confirmation soil samples each were collected from beneath the former UST and product line piping/fuel dispenser. Petroleum impacted soil was identified below the UST and fuel dispenser as a result of the sampling. h1 March 1994,an estimated 880 cubic yards(cy)of soil were removed from the UST area; approximately 700 cy of the soil was reported to be impacted by petroleur.i hydrocarbons. Confirmation samples were collected from the tank area in August 1998 a id case closure was granted by the PHS-EHD in 1999 (AGE, 2001). USTs 18820002 and 18820005 UST 18820002, a 10,000-gallon UST utilized for diesel fuel storage,was ocated west of the former maintenance building on the south portion of the property. A 500gallon waste oil tank (18820005)was located on the east side of the building (Plate 4.1.2). The USTs were removed on May 11, 1988,at which time contaminated soil was encountered in both bink excavations. The maintenance building was removed and over 3,000 cubic yards of impacted soil were excavated and remediated on site prior to disposal off-site. The clean-up level was set at 10,000 mg/kg for TPHd,necessitating long-term ground water monitoring of the site. D&N I began monitoring Draft KB61125 workplan-ESC MACTEC Engineering and Consulting, Inc. 16 September 28,2005