Completion Of Environmental Baseline Data Consolidation For Fremont Gold Mine Project

VANCOUVER – Lode Gold Resources Inc. announced the completion of a comprehensive consolidation of historical and recent environmental baseline data for the Fremont Gold Mine Project in Mariposa County, California.
The Company engaged an independent environmental consulting firm to compile, review and integrate groundwater and surface water monitoring data collected during prior campaigns in 1986–1987, as well as more recent monitoring programs completed in 2022 and 2025. The work resulted in a unified and validated environmental database that establishes a multi-decade baseline dataset for the Fremont area. Hydrochemical evaluation using Piper diagrams indicates that both groundwater and surface water samples are predominantly classified as calcium-magnesium-bicarbonate type waters. This characterization is consistent with historical data sets.
No material changes in hydrochemical facies were observed relative to previous sampling events, indicating stable baseline geochemical conditions over time.
Metals detected during the monitoring programs included arsenic, copper, manganese, and nickel. Arsenic was detected at low concentrations in one groundwater monitoring well, below the applicable drinking water Maximum Contaminant Level (MCL). In surface water samples, arsenic concentrations were variable across locations, consistent with prior monitoring events and reflective of local geochemical conditions observed historically in the district. All other detected metals were below their respective drinking water MCLs.
Measured pH values were neutral across all groundwater and surface water samples collected during all programs. The consistently neutral pH conditions indicate an absence of acid generation within the monitored system. This geochemical stability is consistent with the carbonate alteration (listwaenitic alteration) of the original ophiolitic host rocks, which provides inherent buffering capacity. In particular, the presence of carbonate minerals such as ankerite contributes to acid neutralization, functioning as a natural geochemical buffer and mitigating potential decreases in pH.
Turbidity levels were elevated in certain groundwater samples, which is considered attributable to well sampling disturbance. Surface water turbidity levels were comparatively low, and total suspended solids concentrations remained below applicable secondary drinking water standards.
The last 2025 monitoring results are consistent with historical baseline data and demonstrate continuity in groundwater and surface water quality conditions across the property. The program further strengthens the environmental baseline database for the Fremont project and provides an expanded, current dataset to support ongoing environmental characterization and future regulatory engagement as project planning advances.
This consolidated environmental baseline will form part of the technical foundation for the Pre-Feasibility Study (PFS) planned for 2026 and early 2027 and is expected to support future environmental permitting processes as Fremont advances.
Wendy T. Chan, CEO, said, “The completion of this multi-decade environmental data consolidation marks another important milestone for Fremont. Establishing a robust and defensible baseline strengthens our technical foundation as we advance toward the PFS stage and demonstrates the steady, methodical progress we are making across engineering, environmental and permitting workstreams. Fremont continues to move forward in a disciplined manner toward development readiness.”