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Red Creek Quarry Baseline Water Investigation Table of Contents v DRAFT for review purposes only. Use of contents on this sheet is subject to the limitations specified at the end of this document. Photo 4-1. Example of the low-flow purging methods used in 3Q 2022 sampling events ..................4-2 Photo 4-2. Example of the bailing purging methods used for sampling events ...................................4-3 Photo 4-3. Example of the water level collection methods ....................................................................4-3 Photo 4-4. Example of methods used for collecting surface waters .....................................................4-4 Photo 4-5. Example of methods used for field filtering samples ...........................................................4-5 Photo 4-6. Example of collecting the equipment blank ..........................................................................4-6 Photo 6-1. Surficial mineralization within the Red Creek drainage .......................................................6-8 Photo 6-2. Surface water location SW RC1 .......................................................................................... 6-11 List of Tables Table 3-1. Details on RCQ Groundwater Wells ........................................................................................3-5 Table 4-1. Timing of RCQ Baseline Water Quality Monitoring ................................................................4-1 Table 6-1. Naturally Occurring Elevated Constituents Summary Statistics ....................................... 6-14 Table 6-2. Hydraulic Conductivity .......................................................................................................... 6-15 Table 6-3. RCQ Groundwater Rates Model Results ............................................................................. 6-16 Table 7-1: Interim Analyte Lists ................................................................................................................7-4