| On 9/29/2025, the potential presence of impacted material(s) was identified via hydrocarbon odor and hydrocarbon staining during the decommissioning at the WERNING 1-2B, wellhead, samples: WH01@4', WH01-S@3', FL01-W-R@3', WC-1 and GW-1 located at the wellhead all in the same excavation. The volume of potentially impacted material(s) is not currently known. Out of an abundance of caution, the operator is submitting notification within 24 hours of the discovery of the potential presence of impacted material(s) soil. Initial soil sampling is underway to determine whether any constituents are present at levels in excess of Table 915-1 standards. Groundwater was encountered during decommissioning activities and a grab sample was collected. this location is located within the Mule Deer Severe Winter Range High Priority Habitat, in addition this location is within 300 feet of waters of the state. All data collected will be submitted on the next Sup Form 27 for REM 19438, due, 10/17/25.
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