| On 08/08/2025, the potential presence of impacted material(s) was identified via hydrocarbon odor, and hydrocarbon staining during decommissioning activities at the Land JG 31-12Dwellhead, samples: WH01, WH01-W located at the wellhead in the same excavation and are considered one release. 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 not encountered during decommissioning activities. This location is within the Aquatic Native Species Conservation Waters and Mule Deer Migration Corridor High Priority Habitats. Final analytical results will be included as part of the supplemental Form 19 submission.
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