www.valenza-engineering.com 381_R_04_Rev 0 OGNZL_WUG_Phase1_Conceptual_Mitigation 45 Table 8-1 below outlines the proposed piezometer ID and depth. Table 8-1: Proposed Piezometer details Hole ID Piezo ID Down Hole Depth (m) Depth below Stream (m) #1 - Upper Piezo 1-1 1.6 0 Piezo 1-2 21.6 20 #2 - Upper Piezo 2-1 1.5 0.2 Piezo 2-2 21.3 20 #3 - Central Piezo 3-1 39.4 0 Piezo 3-2 59.4 20 #4 - Central Piezo 4-1 4.9 0 Piezo 4-2 24.9 20 #5 - Lower Piezo 5-1 3.00 2.3 Piezo 5-2 20.7 20 #6 - Lower Piezo 6-1 3.7 0 Piezo 6-2 23.7 20 #7 - East Piezo 7-1 1.5 0.5 Piezo 7-2 21.00 20 #8 - East Piezo 8-1 8.6 0 Piezo 8-2 28.6 20 #9 - TBA1 Piezo 9-1 1.9 0 Piezo 9-2 21.0 19 #10 - TBA1 Piezo 10-1 4.0 0 Piezo 10-2 24.0 20 #11 - TBA1 Piezo 11-1 11 0 Piezo 11-2 34 20 #12 - TBA1 Piezo 12-1 6.2 0 Piezo 12-2 26.2 20 8.1.2. EG VEIN PIEZOMETERS The installation of piezometers to further investigate the hydraulic conditions around the EG vein has been proposed by FloSolutions in. “Data Gaps and Field Program Recommendations – WUG Conceptual Model monitoring Program” April 2022 and summarised in Table 8-2. Table 8-2:Proposed EG Vein investigation Piezometers Drill Pad Drillhole Name Easting Northing Elevation Azimuth Dip Depth (m) Type Priority Drill site 4 PAD04S_SP_PZ 1850095 5868559 178.2 0 90 40 Standpipe Piezometer 1 Drill site 4 PAD04D_SP_PZ 1850095 5868559 178.2 0 90 15 Standpipe Piezometer 1
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