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Appendix B:Previous Environmental Activities <br /> • Vernalis Pum Station: The former Vernalis Pum Station is located at the southeast <br /> P p <br /> corner of Highway 33 and Welty Road. The former pump station, part of the former <br /> OVP system, was investigated by SAIC and others between 1995 and 2008. Five 1 <br /> groundwater monitoring wells associated with the site were properly destroyed by SAIC 1 <br /> in 2009.21 SAIC completed an HHSE of the subject property in 2010, in which results <br /> indicated that the site does not pose a health risk to future residents.22 <br /> • CPS (formerly Western Farm Service): CPS is located at the northwest corner of the <br /> intersection of Highway 33 and Welty Road. CPS has stored and distributed bulk liquid <br /> and dry fertilizers on its facility since 1969. Records indicate this site contained a <br /> 10,000-gallon diesel UST, and 5,000-gallon and 10,000-gallon gasoline USTs. The <br /> USTs were removed in 1987, and their approximate locations are shown on Figure 2 of <br /> the main report. Wells were installed at the CPS facility to monitor concentrations of <br /> agricultural chemicals in groundwater, and from 2005 to 2007 SAIC collected samples <br /> from WFSMW-1 for analysis of the COPCs. <br /> • Former Union Oil Service Station: A service station operated from 1972 to the mid <br /> 1980s at the northeast corner of the intersection of Highway 33 and Welty Road. <br /> Historical records are not available for this site; therefore,the location and status of the I <br /> service station USTs are unknown. <br /> i <br /> 1 <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> 21 SAIC,2009. Groundwater Monitoring Well Destruction Report, Vernalis Pump Station,35500 Welty Road,Vernalis, <br /> California. August. <br /> 22 SAIC-Benham,2010. Human Health Screening Evaluation,Former Vernalis Pump Station, Vernalis,San Joaquin County, <br /> California. September. <br /> B_8 I <br /> SAIE <br /> I <br />