2024-12-19_PERMIT FILE - M2024059 ‎(6)‎

• Permit No: M2024059
• IBM Index Class Name: Permit File
• Doc Date: 12/19/2024
• Doc Name: Application
• From: Western Slope Materials
• To: DRMS
• Email Name: TJ1
• Email Name: THM
• Email Name: EL1
• Media Type: D
• Archive: No

Contents
Introduction 1
1. Background Information 2
1.1. Site Description 2
1.2. Baseline Groundwater Characterization 4
2. Predicted Impacts to Hydrologic Balance 6
3. Groundwater Monitoring Plan 7
3.1. Groundwater Points of Compliance 7
4. Sampling Methods 8
4.1. Sampling Location 8
4.2. Sampling Frequency 8
4.3. Sampling Parameters 8
4.4. Sampling Procedure • 10
4.5. Analytical Procedures 12
4.6. State Water Quality Standards 12
4.7. Reporting 13
4.8. Sampling Quality Assurance Project Plan (QAPP) 13
Appendix 1 - Map 14
Appendix 2 - Baseline Groundwater Quality Data 15
Appendix 3 — CDWR Permits 18
Appendix 4 — Industry Standard Field Sampling Sheet 19
Appendix 5 —Sample Data Report 20
North Hangs GW Monitoring
Plan Lewicki& Associates
December 2024