SR0085508 (2) - Laserfiche WebLink

Home Browse Search

PES Environmental , Inc . The scope of work for Supplemental Investigation Workplan includes the following activities : ( 1 ) field preparation tasks ; (2) collection of subsurface data ; and (3 ) data evaluation and reporting . The proposed scope of work to be conducted is presented below . 2 . 2 Field Preparation Activities The following activities will be performed prior to the commencement of field sampling activities : • Modify the site - specific Health and Safety Plan (HASP) in accordance with applicable occupational safety and health requirements ; • Obtain drilling permits as required from the San Joaquin County Environmental Health Department (SJCEHD ) and the local Reclamation District ; • Contact Underground Services Alert for public utility clearance ; • Retain and schedule drilling and laboratory subcontractors ; and • Perform utility clearances at sampling locations . 2 . 3 Field Investigation 2 . 3 . 1 Grab - Groundwater Investigation 2 . 3 . 1 . 1 Grab - Groundwater Locations Grab - groundwater locations have been selected to evaluate the nature and extent of groundwater conditions in the vicinity of MWP - 4 west of OIP - 14 and MWP4 g Y where LNAPL has been observed towards the White Slough , and in the vicinity of ( ) g Y Well No . 2 where recent ' petroleum hydrocarbon constituents have been detected in water supply system monitoring samples . As shown on Plate 1 , sampling locations are proposed as follows : ( 1 ) one sampling location roughly between MWP - 4 and MWP - 9 where an aboveground fuel storage tank (AST) is suspected to have been formerly located ; (2) one sampling location between MWP - 1 and the White Slough to assess shallow groundwater conditions ; and (3 ) one sampling location east of Well No . 2 (the on- site water supply well) to assess shallow groundwater conditions at the adjacent boat repair facility . 2 . 3 . 1 . 2 Grab - Groundwater Sampling and Analytical Methods A direct-push rig equipped with a displacement point attached to the bottom of the drive casing will be used to advance the grab groundwater borings . Continuous soil cores will not be collected to reduce costs associated with the limited groundwater investigation activities . PES , 2021 . Second Semi Annual Groundwater Monitoring Report, Paradise Point Marina, 8095 Rio Blanco Road, Stockton, California . February 1 . 148400101W006 . docx 2 D R A F T