2025-08-28_HYDROLOGY - M1983194 (7)

Home Browse Search

Natural Soda LLC 2024 Project Status Report & Annual Plan of Development 8 January 2025 3.1.4. Regulatory Review (Confidential) NS submitted routine Sundry Notices, monthly, quarterly, and annual reports to the appropriate agencies. The following summarizes other regulatory related activities: Bureau of Land Management (BLM) • March 5, 2024, NS reported an Undesirable Event to the BLM with regards to a pinhole leak in the brine pipeline that leaked sodium bicarbonate brine onto undisturbed ground. NS contained the leaked fluids with a soil berm and cleaned up the affected soil and reclaimed the area per agency guidelines. • In April 2024 NS submitted an APD application package for the 19H-1V and 19H- IR-E proposed production wells. • In May 2024 NS reported two notifications (May 6 and 14th) of migratory waterfowl encounters to the U.S. Fish and Wildlife Service (FWS) at the time of the events. BLM requested to be notified of the same events moving forward and were notified of these events on July 9, 2024. • All required drilling commencement and cementing operational notifications were supplied to the BLM by NS as required for the 18H-1V and 18H-IR-W production well operations in June 2024. • NS submitted BLM a request for the P&A of the 18H-IR-WA production well July 1, 2024, the BLM granted approval July 29, 2024. NS submitted P&A completion documents following the 18H-IR-WA P&A operations in August 2024. • NS submitted an APD application for the 18H-IR-W production well redrill operation in July 2024, the BLM approved the APD on August 1, 2024. The 18H- IR-W production well was redrilled in October 2024. • In August 2024 NS submitted a Use Permit Application to the BLM for Lot Three of Section 36 to maintain access to the proposed 19H East pad location to be constructed in 2025. • Completion data and Form 3160-4 (well completion) were submitted to the BLM for the 18H-1V Slant Production well in December 2024. United States Environmental Protection Agency (EPA) • January 11, 2024, NS sent EPA all documentation for the DS-3 Subsurface Subsidence Monitor Well (SSMW) geophysical logging and analysis required for the 12H and 13H mining intervals. Logging occurred on January 9, 2024, and indicated no subsurface subsidence. • NS submitted an application package to add the proposed 19H-IR-E Horizontal Production well to the NS UIC area permit CO30358-00000 on April 10, 2024. The application was approved by the EPA on June 22, 2024, and assigned injection permit # C030358-12756 to the 19H-IR-E well.