COMPLIANCE INFO - Laserfiche WebLink

Home Browse Search

(-' v 1.0 INTRODUCTION/BACKGROUND Walgreen Company retained Bureau Veritas North America, Inc. (Bureau Veritas)to conduct a Limited Subsurface Investigation (LSI)at Walgreen Store#02680 located at 15 West Harding Way in Stockton, California (herein referred to as the"subject property"). This LSI scope of work was developed based on a review of the Phase I Environmental Site Assessment(ESA)that was conducted at the subject property by Bureau Veritas (Project Number 99008-008321.01, dated September 5, 2008)and in accordance with Bureau Veritas Proposal number 0711.08.0806, dated October 23, 2008. The subject property consists of one commercial building located on an approximate 1.1 acre 'L' shaped lot in a mixed commercial/retail and residential area. The subject property was developed with the existing commercial building in about 1972. Additional information pertaining to the historical operations at the subject property is presented in Bureau Veritas' 2008 Phase I ESA. The Phase I ESA noted the following recognized environmental conditions(RECs)in connection with the subject property: • Historical On-site Filling/Service Station (3 and 31/2 West Harding Way/1501 North Center Street)—According to Sanborn maps and city directories, a filling/service station was located on the southeastern portion of the subject property from approximately 1930 to 1950. No records have been identified regarding this facility; therefore, it is unknown whether the USTs were removed or remain at the subject property. Furthermore, it is unknown whether additional hazardous substances(e.g. solvents, petroleum products)or hydraulic lifts were located on the subject property associated with the vehicle service activities. The former on- site filling/service station and the potential presence of USTs located on the subject property are RECs. • Southeast Adjoining Filling Station (16 East Harding Way)—The southeast adjoining and crossgradient filling station has been present since 1955 and reported a release of gasoline impacting groundwater and is currently being monitored and undergoing remediation for total petroleum hydrocarbons (TPH quantified as gasoline (TPH-g), benzene, methyl-tert butyl ether(MTBE), and 1,2-dichloroethane (1,2-DCA). Although no investigations have been conducted on the subject property, it appears that the subject property groundwater may be impacted with 1,2-DCA, based on the most recent groundwater monitoring results collected in January 2008. The closest monitoring wells to the subject property, MW-3A(approximately 135 feet southeast of the subject property)and MW-7A(approximately 160 feet east of the subject property), detected 1.4 micrograms per liter(ug/L)and 1.8 ug/L of 1,2-DCA, respectively,which exceed the Department of Health Service Maximum Contaminant Level (MCL)of 0.5 ug/L. TPH-g was also detected in MW-7A at 97 ug/L; MTBE and benzene were not detected in those two wells in 2008. Based upon available information, the release associated with the southeast adjoining property represents a REC. • Southwestern and Upgradient Adjoining Dry Cleaner(48 West Harding Way)—Cannon Cleaners has been located approximately 100 feet southwest(upgradient)of the subject property since approximately 1960 and was previously located at 130 West Harding Way (approximately 150 feet upgradient)from approximately 1940 to 1955. The presence of the southwest adjoining dry cleaner is a REC based on its lengthy history and upgradient proximity to the subject property. • Historic Nearby Properties—Several other filling stations and dry cleaners were located adjacent or nearby the subject property during various periods since 1935. These properties included filling stations located south of the subject property at 10 West Harding Way from 1965 to 1979, southwest of the subject property at 140 West Harding Way from 1930 to 1970, 1 Project Number 99008-008321.03