ARCHIVED REPORTS_XR0011287 - Laserfiche WebLink

Home Browse Search

Geological Technics Inc. Page 2 Site Conceptual Model 16 Project No. 989.2 December 17,2003 ' The William J. Hunter & Associates report: Interim Report Covering Results of Soil Contamination Investigation Valley Wholesale Drugs — October 11, 1995 discusses the installation of three (3) monitoring wells and three (3) soil borings at the site. In an attempt to further define the limits of soil and groundwater contamination three (3) ' GeoProbe borings were placed on the site on August 25, 1998. The results of the work are outlined in the William J. Hunter & Associates report: Interim Report Covering Results of Site Investigation: Placement of Soil/Water Probes— September 28, 1998. ' On August 15, 2000, three (3) additional groundwater-monitoring wells were installed at the site. Details of the work are discussed in William J. Hunter & Associates report: Interim Report Covering Results of Site Investigation; Placement of Soil/Water Probes & Groundtivater Monitoring Results Valley Wholesale Drug Co. —October, 2000. On October 5, 2001, Mr. Jeffrey Wong of San Joaquin PHS/EHD issued a directive requiring that a work plan be developed that will define the extent of the contamination plume. ' On October 5, 2001, Paul Souva of Valley Wholesale Drug Company, Inc. (VWDC), received a directive from Jeffrey Wong, Senior REHS of the San Joaquin County Department of Public Health Services Environmental Health Division (SJCPHS-EHD). The letter required VWDC to define the extent of the contamination plume and submit a work plan. to SJCPHS-EHD by November 20, 2001. ' On November 1, 2001, Geological Technics requested an extension for the work plan submittal. On November 5, 2001, Mr. Wong granted the extension to December 5, 2001. The work plan was submitted on November 21, 2001 and was approved by Mr. Wong in a letter dated February 27, 2002. Beginning in July 2002, Geological Technics Inc. performed the following scope of work: • Installed one deep monitoring well to 42 feet below grade (MW-101) ' • Installed three shallow monitoring wells to 22 feet below grade (MW-7, MW-8 and MW-9) • field screened soil samples and collected samples for laboratory analysis. ' • Developed the new monitoring we1ls • Measured depth-to-water, purged wells and collected groundwater samples for laboratory analysis. ' • GPS Survey of all monitoring wells on and off site as required under AB2886. • Conducted routine quarterly groundwater monitoring events • Prepared and submitted quarterly groundwater monitoring reports I