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UST Case Closure Summary Form <br /> Additional Information: <br /> • Groundwater was not sampled during the investigation pertaining to the two diesel USTs. <br /> However, 2011 groundwater data from the closed LOP site 2969 Loomis Rd., Stockton, which is <br /> located approximately 1000 feet south of 2431 E. Mariposa Rd., reports groundwater at <br /> approximately 47 feet. Additionally, 2014 groundwater data from the LOP site 2132 E. Mariposa Rd., <br /> which is located approximately 1,500 feet northwest of 2431 E. Mariposa Rd., also reports <br /> groundwater at approximately 47 feet. <br /> • Soil samples taken from 40 feet bsg near the diesel USTs were non-detect for TPH-d, benzene, <br /> toluene, ethylbenzene, and total xylenes. It is unlikely contaminants from the diesel USTs had a <br /> significant impact on groundwater. <br /> RWQCB Notification Date Form Sent: yI6�l S <br /> RWQCB Staff Name: James Barton Title: Engineering Geologist <br /> RWQCB Staff Name: Title: <br /> Local Agency Representative <br /> Name: Adrienne Ellsaesser, REHS Title: Program Coordinator <br /> Signature* , Date: y /� <br /> 2014-2015—1_0P Agency Guidebook-Section 9 <br /> 7/16/2014 <br />