ARCHIVED REPORTS_XR0002988 - Laserfiche WebLink

Home Browse Search

i 6ETTL ER RYAN INC. Apn1 12, 1999 Mr David Camille Tosca Marketing Company 2000 Crow Canyon Place, Suite 400 San Ramon, California 94583 Subject: Underground Storage Tank and Product Piping Replacement Report for Tosco 76 Branded Facility No. 11193, 3202 West Hammer Lane, Stockton, California. Dear Mr Camille At the request of Tosco Marketing Company, Gettler-Ryan Inc (GR) conducted a soil investigation during underground storage tank (UST) and product piping replacement activities at the subject site The purpose was to assess if petroleum hydrocarbons have impacted the soil near the gasoline USTs and beneath the product lines GR's scope of work included observing removal of the USTs, obtaining permits and observing the destruction of one groundwater monitoring well, collecting soil and groundwater samples from the UST pit, collecting soil samples from the former product piping • trenches, and from the soil stockpiles for disposal characterization, collecting groundwater samples for characterization of discharged water from gasoline UST pit, submitting soil and groundwater samples for analysis, coordinating disposal of soil stockpiles, and preparing a report of the field activities and analytical results Construction activities were performed by Paradiso Mechanical, Inc (Paradiso) of San Leandro, California SITE DESCRIPTION The subject site is a service station located on the southwest comer of the intersection of West Hammer Lane and Kelley Drive in Stockton, California (Figure 1) Aboveground facilities consist of a building, canopy and two dispenser islands Two new gasoline USTs share a common pit at the location of the former USTs, east of the existing building Six groundwater monitoring wells and one vapor extraction well are present at and in the vicinity of the site Pertinent site features are shown on Figure 2 FIELD WORK Sampling was performed by GR personnel in accordance with GR's Field Methods and Procedures (attached) All soil and groundwater samples collected during this investigation were submitted under chain-of-custody to Sequoia Analytical Laboratory located in Walnut Creek, California (ELAP #1271) and Sacramento, California (ELAP #1624) Analytical methods and results are summarized in Tables 1 and 2 Soil sample locations are shown on Figure 2 Copies of the laboratory analytical reports and chain-of-custody records are attached Representatives of the San Joaquin County Public Health 14� 140205 02 6747 Sierra Court , Suite J Dublin , California 94568 • { 925 ) 551 - 7555