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<br /> <br /> <br />ii <br />DRAFT for review purposes only. Use of contents on this sheet is subject to the limitations specified at the end of this docu ment. <br />Red Creek Quarry Baseline Water Information 20230907 <br />Table of Contents <br />Executive Summary .................................................................................................................................... vii <br />1. Introduction .........................................................................................................................................1-1 <br />1.1 Baseline Water Investigation Objectives ...............................................................................1-2 <br />1.2 Baseline Water Investigation Scope of Work ........................................................................1-2 <br />2. Background .........................................................................................................................................2-3 <br />2.1 Major Land Features that Influence Water Quality and Quantity ........................................2-3 <br />3. Data Collection ...................................................................................................................................3-1 <br />3.1 Site Geology and Hydrogeology..............................................................................................3-1 <br />3.2 Monitoring Well Installation ...................................................................................................3-3 <br />3.3 Groundwater Elevations .........................................................................................................3-6 <br />3.4 Slug Test ..................................................................................................................................3-6 <br />3.4.1 Data Usability and Corrections ................................................................................3-6 <br />3.4.2 Analysis Methods .....................................................................................................3-7 <br />3.4.3 Slug Test Analysis Methods .....................................................................................3-7 <br />3.5 Groundwater Modeling ...........................................................................................................3-8 <br />3.6 Surface Water Reconnaissance.............................................................................................3-8 <br />3.7 Surface Water Flume Installation ....................................................................................... 3-12 <br />4. Water Quality Monitoring ...................................................................................................................4-1 <br />4.1 Baseline Monitoring Program ................................................................................................4-1 <br />4.2 Groundwater Well Purging and Field Parameters.................................................................4-2 <br />4.3 Surface Water Sampling Methods .........................................................................................4-4 <br />4.4 Water Quality Sample Collection ...........................................................................................4-5 <br />4.4.1 Filtration and Preservation ......................................................................................4-5 <br />4.4.2 Parameters ...............................................................................................................4-5 <br />4.5 Quality Assurance/Quality Control and Data Validation .......................................................4-6 <br />4.5.1 Duplicates .................................................................................................................4-6 <br />4.5.2 Equipment Blanks ....................................................................................................4-6 <br />4.5.3 Data Validation and Data Review Procedures ........................................................4-7 <br />5. Presentation of Results ......................................................................................................................5-8 <br />5.1 Groundwater and Surface Water Quality Field Measurements ...........................................5-8 <br />5.2 Groundwater Level Assessment ............................................................................................5-8 <br />5.3 Flow Monitoring Results .........................................................................................................5-9 <br />5.4 Water Quality Measurements ............................................................................................. 5-12 <br />5.4.1 Data Validation ...................................................................................................... 5-12 <br />5.4.2 Summary of Analytical Results ............................................................................. 5-13 <br />6. Interpretation of Results ....................................................................................................................6-1