ARCHIVED REPORTS XR0000985 - Laserfiche WebLink

Home Browse Search

- © _ _ CLEARWATER ; G R O U P, I N C: INTROD,i3CTION • This report presents the results of recent.field activities- performed' by Clearwater ' ' Group,' Inc. (Clearwater) at the Olivarez 'Property'(formerly Skip's Service Station) located at 304 South California Street"-in Stockton,' California. ' The.tasks performed during this-phase of work included,,the following: • Drilling, logging and sampling three soil borings. • Installation.of,three two-inch diameter monitoring-wells (designated MW-1, MW-2 and MW-3) in the soil borings. • Development and surveying of the 'monitoring wells: 1 5 '. Collection of'groundwater'samples from the wells for. laboratory analysis. 1.1 Site Description and Background The site is located -on the southeast .corner of the intersection of California and . �• Lafayette Streets in a commercial/industrial section of Stockton (Figure 1). The property was formerly -a, gasoline station,' and, is' currently .utilized as a vehicle service center. - Gasoline and diesel fuel were previously dispensed from . underground fuel storage tanks (UST's) located near the northern ,property boundary,. along' Lafayette Street. The site layout including- the location of the former,UST's is presented in Figure 2. '.The five fuel 'UST's and 'one used oil tank were removed from the site - in November 1993. The excavations, remain open. -The ..results of analysis of soil samples collected during tank removal -activities° indicated- -the presence of hydrocarbons in.the subsurface. ; 1.2 Purpose As stated' in the Clearwater Workplan For Pzelim.inary Site Assessment (January-19; 1995), the- purpose of this, phase of investigation was the evaluation of the presence/distribution of fuel hydrocarbons in soil and groundwater beneath the subject site. The workplan was ain'approved by the San JoaquCounty Public Health, tServices/Environmental Health-Division (PHS/,EHD) in, a.fax dated November 9;- 1995.