| On 5/12/2025, Stroh N35-10 flowline decommissioning activities were completed. During the completion of the activities, no potential presence of impacted material(s) was observed/smelled. Consistent with Rule 912, samples were collected and analyzed to determine whether any constituents are present at levels in excess of Table 915-1 standards. Final laboratory analytical results received on 6/13/2025 indicate that soil samples, FLR01-W, discovered the wellhead flowline riser, exceeded ECMC Table 915 standards for naphthalene at 0.0114 mg/kg, 1-methylnaphthalene at 0.0605 mg/kg, and 2-methylnaphthalene at 0.0689 mg/kg. Groundwater was not encountered during decommissioning activities. This site is within Mule Deer Severe Winter Range and the municipality of Milliken. |