Document Summaries (Phase I Release)

• 01. EGLE Correspondence & Orders (2023–2024): State directives, site inspection reports, and compliance actions concerning Ludington WWTP and OxyChem South Pond.
• 02. On-Site Work Notices (EQP3801, 2022–2025): Field notifications filed under environmental permit EQP3801 documenting sampling and remedial operations.
• 03. BEA / VIAP (2019–2022): Baseline Environmental Assessment and Vapor Intrusion Action Plan filings defining conditions at Harbor View and Dow parcels.
• 04. Audit, Violations & Responses (2023–2024): Compliance audits and responses to EGLE deficiency letters.
• 05. Maps, Tables & Elevations: Groundwater contour maps, sampling locations, and elevation data from Dow/Oxy and city monitoring.
• 06. FAR: Cover & TOC: Title pages and table of contents from the 2023–24 Field Activities Report (FAR) summarizing exfiltration fieldwork.
• 07. FAR Text: Executive → CSM: Executive summary through conceptual site model from the 2023 FAR, detailing pond leakage and plume pathways.
• 08. FAR Appendices A–C: Supporting tables, lab methods, and QA/QC validation from the FAR package.
• 09–10. Lab Results: Ammonia / Chloride / TDS (Sets 1–2): Raw analytical data verifying ionic loading from South Pond discharges.
• 11. Lab Results: PFAS & QA/QC: Confirmatory PFAS analyses and split-sample results between EGLE and Occidental labs.
• 12. Mixing Zone / FAV Keys: Calculations and correspondence defining permissible mixing ratios for outfall discharges under NPDES MI0003026.
• 13. On-Site Air Sparge Logs: Field logs documenting groundwater vapor mitigation and air-sparge system performance.
• 14. USPS Notice & Proof: Certified mailing receipts verifying official notice of submittals to regulatory agencies.
• 15. Mini: PFAS Exceedances (Tight): Condensed summary of detections exceeding state groundwater criteria.
• 16. PFAS Exceedance Summary (pp. 840–860): Detailed tabulation of PFAS exceedances by sample point and date.
• 17. PFAS Lab Sheets (pp. 920–967): Original laboratory printouts from Trace Analytical confirming EGLE-verified results.
• 18. PFAS QA/QC (pp. 880–900): Quality assurance worksheets documenting calibration, blanks, and recovery data.