| On 8/28/2025, BERNHARDT 18-1 wellhead 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 9/17/2025, indicate the soil sample, WH01, discovered at the wellhead exceeded ECMC Table 915 standards for 1,2,4-Trimethyl-Benzene at 0.0142 mg/kg and 1,3,5-Trimethyl-Benzene at 0.0108 mg/kg. Groundwater was not encountered during decommissioning activities. This location is within the Mule Deer Severe Winter Range, Mule Deer Winter Concentration Area, & Lesser Prairie Chicken Estimated Occupied Range High Priority Habitats.
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