Agenda - Council - 10/10/2017 - Laserfiche WebLink

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City of Ramsey Project B1700969 March XX, 2017 Page 4 DRAFT ■ Installed five temporary monitoring wells in five of the soil borings (S-1, S-4, S-6, S-8, and S-9) and collected groundwater samples. ■ Installed three temporary soil vapor probes (SG-1 through SG-3) and collected soil vapor samples. ■ Conducted environmental monitoring during drilling and screened soil samples collected from the borings for the presence of organic vapors using a photoionization detector (PID). Visual and olfactory observations regarding potential contamination were also made and recorded. ■ Analyzed representative samples of soil, vapor, and groundwater for one or more of the following parameters: Volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs), gasoline range organics (GRO), diesel range organics (DRO), and Resource Conservation and Recovery Act (RCRA) metals. ■ Evaluated the data and prepared this report. Investigation locations are shown on Figure 2 and soil boring logs are included in Appendix A. D. Deviations from Work Plan/Proposal The proposal included 12 soil borings: 5 to be completed as temporary monitoring wells and 7 to be advanced by the former fueling dispensers. However, sampling under the dispensers was conducted as part of the concurrent tank removal activities. Instead of the 7 dispenser borings, 4 shallow (8 feet deep) soil borings were advanced for general coverage of the Site. E. Investigation Methods and Procedures The field work relating to the Phase II ESA investigation was conducted on March 13, 2017. Prior to beginning the field investigation, public utilities were cleared through Gopher State One Call and private utilities were cleared through a subcontracted private utility locator. Soil boring rationale and analytical testing parameters are summarized in Section E.1.c. The locations and ground surface elevations of soil borings, temporary monitoring wells, and soil vapor probes were BRAUN INTERTEC