REMOVAL 2009 - Laserfiche WebLink

Home Browse Search

• GE T TL ER • -RYAN INC. LIMITED SUBSURFACE INVESTIGATION REPORT for City of Ripon / Madsen Sunrise Dairy 239 South Stockton Street Ripon, California Report No. 25-948223.1-3 1.0 INTRODUCTION This report summarizes the results of the recent subsurface investigation performed by Gettler-Ryan . (GR) Inc at the subject site. The work was performed at the request of the City of Ripon n order to evaluate the degree and extent ofpetroleum hydrocarbon -impacted soil and groundwater beneath the site. This scope of work was Proposed in GR's report number 257948223.1-2, titled Work Plan Addendum to Limited Subsurface Assessment Work Plan dated June 8, 2010, and approved by the San Joaquin County Environmental Health Department (SJCEHD) in a letter to the City of Ripon dated June 21, 2010. The scope of work included: preparing a site- specific safety plan, obtaining the required drilling permit, advancing four Geoprobe@ borings, collecting and submitting soil and grab groundwater samples for chemical analysis, and preparing a report summarizing the findings of the investigation. 2.0 SITE DESCRIPTION 2.1 General The subject site is a vacant lot located on the northwest comer of the intersection of South Stockton Street and 2nd Street in Ripon, California (Figure 1). Ile site was Previously used as a dairyproduct distribution facility. One 12,000,gallon diesel underground storagetank (UST) was previously located in the northeast portion of the site. Pertinent site features are shown on Figure ( 2. Land use in the vicinity of the site includes residential housing, industrial and small businesses. The Stanislaus River is located approximately 4000 feet east of the subject site. The property to the south across 2nd Street was formerly a service station (Theimann Service Station) end is currently occupied by an auto repair business. Six groundwater monitoring wells are located at the former Thiemann Service Station site. 2.2 Previous Environmental Work On November 5, 1993, three fuel USTs (two 8,000 gallon and one 6,000 gallon) were removed from the site. No holes were observed in the USTs at the time of removal. Six soil samples were collected from beneath the fuel USTs at depths ranging from ] 4 to 15 feet below ground surface (bgs). The soil samples from the beneath the 140009.02-2 6747 Sierra Court, Suite J • Dublin, CA 94568 •(925)551-7555 • Fax (925) 551-7888 3140 Gold Camp Drive, Suite 170 • Rancho Cordova, CA 95670 • (916). 631-1300 • Fax (916) 631-1317