| The first indication of a suspected release was detected on May 3, 2020, during the flow lines annual pressure. The pressure check indicated that the dump line from the separator to the storage tank did not hold the pressure. The two wells (Gail #1 and the Gail Smith1) were immediately shut-in. The Operator commenced excavation activities to investigate the suspected leak in the Dump Line, on May 20, 2020. A small hole was found in the dump line approximately mid-way between the separator and the tanks. Impacted soils were excavated and disposed at Buffalo Ridge Landfill. During these activities, a small corrosion area (no indication of oil) at the south side base of the oil storage tank and a small leak at the water tank flex conection (west side). Both the oil and water tanks were moved by the morning of May 22, 2020. Overexcavation of impacted soils and confirmation soil samples were collected. Groundwater samples collected from pit. Clayey soils limited spread of oil. |