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2.0 SITE DESCRIPTION AND BACKGROUND 2.1 Site Setting The site is an active service station and car wash located in a mixed residential and commercial neighborhood, at the northwest corner of the intersection of Ryde Avenue and Country CIub Boulevard It is our understanding that the site operated as an Exxon-Branded service station (No 7-3708) until December 1995 New West Petroleum operated the service station between January 1996 and November 1997, Palisades purchased the property from New West Petroleum at this time In March 1994, three single-walled gasoline USTs used to store gasoline (one 6,000-gallon capacity, one 8,000-gallon capacity, and one 10,000-gallon capacity) and the gasoline product lines and fuel pump islands were removed from the northeastern portion of site A waste oil UST, formerly located in the northwestern portion of the property, was also removed at this time Double-walled fiberglass USTs (diesel and gasoline) were subsequently installed in a new cavity located in the east central portion of the site A new fuel dispenser island, located in the southeastern portion of the property, was also constructed The locations of the former and current USTs and pump islands, and the configuration of the facility, are shown on Figure 2 Motor vehicle fuels were also released to the subsurface at 2725 Country Club Boulevard, an active 7-11 service station (#14117) situated immediately west of the Palisades service station Soil and groundwater beneath this 7-11 facility are impacted with TPHG, BTEX, MTBE, and TBA The location of 7-11 station #14117 is shown on Figure 3 A Shell station formerly operated at 2575 Country Club Boulevard, approximately 450 feet east of the site Soil and groundwater beneath this property is also impacted with TPHG, BTEX, MTBE, and TBA A pump and treat groundwater remediation system is currently being operated on behalf of Shell The location of this former Shell station is illustrated on Figure 4 22 Topography and Surface Conditions Topography in the vicinity of the site is generally flat, at an elevation of approximately one foot above mean sea level Asphalt and concrete cover a majority of the subject property Landscaped planters are situated near the perimeter of the property 2 2 1 Drainage The retail facility building footprint, UST sump covers, and asphalt/concrete finishes are elevated above the crown of Country Club Boulevard and Ryde Avenue Rainwater appears to flow into storm drains located in the curb area of Country Club Boulevard and Ryde Avenue The nearest surface water body is Smith Canal, situated approximately 1,300 feet south of the site There are no ponds, lagoons, or drainage ditches used at the site K IDSA Gasohne10835\Reportslusan5-scm assessment report doo Page 3 5MATUS