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City of Ramsey <br />Proposal QTB134668 <br />March 15, 2021 <br />Page 2 <br />using Gopher State One Call, and a utility locator will be retained to evaluate the boring locations for <br />potential private utilities. The work will be conducted over two separate mobilizations - one <br />mobilization in April, and one mobilization in November. The scopes of work proposed at each site <br />are described below. <br />B.A. Cylinder Site -14165 Ramsey Blvd NW (MPCA ID# BF0000748) <br />The environmental sampling field work is expected to take one day to complete and will include the <br />following: <br />■ Advance five (5) soil borings at the Site to a depth of approximately 8 feet below ground <br />surface (bgs) for the purpose of collecting soil samples. The soil borings will be advanced <br />using hydraulic probe -type drilling equipment, with continuous soil sampling. One soil boring <br />will be advanced in the location of previous boring SB-4, to delineate the vertical extent of <br />metals contamination identified during the 2018 Phase II ESA. The other four borings will be <br />advanced in four directions approximately 20 feet outwards from SB-4. Following sample <br />collection, the boreholes will be sealed per Minnesota Department of Health (MDH) <br />regulations. <br />■ Conduct environmental monitoring during drilling including visual/olfactory observations of <br />soil samples for evidence of contamination (i.e. odors, staining, intermixed debris, etc.). <br />Collect representative soil samples and submit for analytical testing for the 13 Priority <br />Pollutant Metals using Environmental Protection Agency (EPA) Method 6010. <br />■ Advance four (4) temporary soil vapor probes to a depth of 3 to 5 feet bgs and collect soil <br />vapor samples using Summa Canisters. The soil vapor samples will be collected in April from <br />the locations of previous vapor samples SV-1 through SV-4 (previously sampled in heating <br />season) to provide soil vapor data from the MPCA-defined non -heating season (April through <br />October). The four (4) soil vapor samples will be submitted to a qualified laboratory and <br />analyzed for volatile organic compounds (VOCs) using EPA Method TO-15. <br />Alloy Recovery Site - 7060 142nd Avenue NW (MPCA ID# BF0000749) <br />The environmental sampling field work will be conducted over two separate mobilizations (one in April <br />and one in November) and will include the following: <br />■ Advance nine (9) temporary soil vapor probes to a depth of 3 to 5 feet bgs and collect soil <br />vapor samples using Summa Canisters. <br />■ Five (5) soil vapor samples will be collected in November from the locations of <br />previous vapor samples VP-1 through VP-5 to provide soil vapor data from the MPCA- <br />defined heating season (November through March). <br />■ Two (2) soil vapor samples will be collected in April from the locations of previous <br />vapor samples VP-6 and VP-7 to provide soil vapor data from the non -heating season. <br />■ One (1) soil vapor sample will be collected in November and one (1) in April from <br />within the footprint of the former on -site building to provide soil vapor data from the <br />heating and non -heating seasons (2 total samples). <br />■ The nine (9) soil vapor samples will be submitted to a qualified laboratory and <br />analyzed for VOCs using EPA Method TO-15. <br />BRAUN <br />INTERTEC <br />