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Work Plan <br /> On January 25, 2022,three monitoring wells were installed at the site as part of a geotechnical <br /> engineering study. The groundwater monitoring wells were constructed of 2"-diameter, schedule 40 <br /> PVC to a depth of 32 feet below the ground surface. These monitoring wells were installed with <br /> downhole datalogger sets to read groundwater measurements. Data has been collected and these <br /> groundwater monitoring wells are no longer needed. <br /> LIES plans to properly abandon these wells by using pressuring grouting methods. V&W Drilling, Inc. has <br /> been hired by UES to complete the abandonment. Tremie pipe will be installed to the total depth of the <br /> wells and displace with neat cement, hold approximately 25 psi on the well for at least five minutes. The <br /> well boxes will be removed and a hole a minimum of 20-inches in diameter will be drilled to a depth of <br /> at least three feet below the ground surface. The well casing shall then be cut off six inches above the <br /> bottom of the excavation and removed. Neat cement used to fill the well will be used to the fill the <br /> excavation, creating a cap of one foot in depth. Native soil will used to fill in the remaining excavation to <br /> the existing ground surface. <br />