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Phase II Environmental Site Assessment <br />2534 Kenzie Terrace <br />WSB Project No. R-020198-000 Page 3 <br />1.3 Scope of Work <br />The following tasks were conducted as part of the Phase II ESA: <br />Completed a public utility locate through Gopher State One Call (GSOC) service as well <br />as a private utility locate prior to boring advancement. <br />Advanced four borings to depths ranging from 24 to 28 feet below grade using a push <br />probe drill rig for soil and/or groundwater sample collection. <br />Advanced four borings to depths of 4 feet below grade using a push probe drill rig for soil <br />vapor sample collection. <br />Assessed soil samples for visual and/or olfactory indications of contamination and <br />screened soil samples for organic vapors using a photoionization detector (PID) equipped <br />with a 10.6 electron volt (eV) lamp. Soil types and profiles were recorded on boring logs <br />in general accordance with the Unified Soil Classification System (USCS). <br />Utilized Global Positioning System (GPS) technology to record final boring locations. <br />Collected and submitted select soil samples for analysis of: <br />o Diesel range organics (DRO) by the Wisconsin Modified Method <br />o Gasoline range organics (GRO) by the Wisconsin Modified Method <br />o VOCs by Environmental Protections Agency (EPA) Method 8260D <br />o Resource Conservation and Recovery Act 8 Metals (RCRA 8 Metals) by EPA <br />Method 6020B/7471B <br />Collected and submitted select groundwater samples for analysis of: <br />o DRO by the Wisconsin Modified Method <br />o GRO by the Wisconsin Modified Method <br />o VOCs by EPA Method 8260D <br />o RCRA 8 Metals by EPA Method 6010/7471 (field filtered for analysis of dissolved <br />metals) <br />Collected and submitted soil vapor samples for analysis of: <br />o VOCs by EPA Method TO-15, full scan <br />Sealed all borings in accordance with Minnesota Department of Health (MDH) <br />requirements. <br />Prepared this report detailing field observations, laboratory results, conclusions, and <br />recommendations. <br />Details of the tasks completed during this investigation are discussed in the following sections. <br />General field methods are included as Appendix A. <br />1.4 Work Plan Deviations <br />The work was completed in general accordance with WSB’s scope of work, dated March 31, <br />2022, except for the following deviations: