2023-10-03_REVISION - M1977344 ‎(22)‎

• Permit No: M1977344
• IBM Index Class Name: Revision
• Doc Date: 10/3/2023
• Doc Name Note: App 4.5 Red Creek Quarry Baseline Water Information
• Doc Name: Request For Amendment To Permit
• From: Holcim ‎(US)‎ Inc.
• To: DRMS
• Type & Sequence: AM2
• Email Name: TC1
• Email Name: MAC
• Media Type: D
• Archive: No

Red Creek Quarry Baseline Water Investigation Table of Contents

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DRAFT for review purposes only. Use of contents on this sheet is subject to the limitations specified at the end of this docu ment.
Red Creek Quarry Baseline Water Information 20230907
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. Hydraulic Conductivity .......................................................................................................... 6-14
Table 6-2. RCQ Groundwater Rates Model Results ............................................................................. 6-15
Table 7-1: Interim Analyte Lists ................................................................................................................7-3