1. Haley & Aldrich, Inc. 1 Preliminary Draft Community Advisory Board West Van Buren WQARF Site WVB Working Group - Draft Final Feasibility Study Work Plan April 15, 2013 Haley & Aldrich, Inc.

2. 2 TOPICS 1.West Van Buren Working Group 2.Feasibility Study Objectives 3.Feasibility Study Process 4.WQARF Procedure 5.Draft Final Feasibility Study Work Plan Status 6.Public Notice

3. Haley & Aldrich, Inc. 3  Air Liquide Specialty Gases, LP;  Arizona Public Service Company;  City of Phoenix;  Dolphin, Inc.;  Freescale Semiconductor, Inc.;  Penn Racquet Sports;  Holsum Bakery, Inc.;  Honeywell International, Inc.; WEST VAN BUREN WORKING GROUP  ITT Corporation;  Laundry and Cleaners Supply, Inc.;  Maricopa Land and Cattle Company;  Milum Textile Services Co.;  Prudential Overall Supply, Inc.;  Salt River Project Agricultural Improvement and Power District;  Shuff Steel Company;  Univar USA Inc. Unincorporated association of parties that are key regional stakeholders;

4. Haley & Aldrich, Inc. 4 FS OBJECTIVES Identify a Reference Remedy, and a Less Aggressive and More Aggressive Remedy that: Appear to be capable of achieving the Remedial Objectives; Comply with Arizona Revised Statutes § 49-282.06, Remedial Action Criteria; and Comply with Arizona Administrative Code, Title 18 - Environmental Quality, Chapter 16 – Department of Environmental Quality Water Quality Assurance Revolving Fund Program, Article 4 – Remedy Selection.

5. Haley & Aldrich, Inc. 5 No Action Monitoring Source Control Controlled Migration Containment Plume Remediation [R18-16-407(F)] [R18-16-407(G)] Remedial Strategies Potential Alternatives [R18-16-407(E)(3)] [R18-16-407(H)(1-2)] Less Aggressive Reference More Aggressive Comparison Criteria [R18-16-407 (H)(3)] Criteria [R18-16-407(H)(1-3)] 1Achieve ROs 2Consistency with Water Management Plans of Providers 3Practicability 4Risk 5Cost 6Benefit / Value FS PROCESS

6. Haley & Aldrich, Inc. 6 WQARF PROCEDURE FS Working Agreement with ADEQ – 01/15/13 Draft Final FS Work Plan – 03/01/13 Public Comment Period (30 Days – Started 04/05/13 ) Public Comment Period (30 Days – Started 04/05/13 ) Proposed Remedial Action Plan (typically developed by ADEQ) Public Comment Period Responsiveness Summary and Record of Decision (ADEQ) Responsiveness Summary and Record of Decision (ADEQ) Final FS Work Plan Approval Feasibility Study

7. Haley & Aldrich, Inc. 7 Draft FS Work Plan – submitted to ADEQ in September 2011; FS Working Agreement with ADEQ – January 15, 2013; ADEQ Comments Received – February 1, 2013; Draft Final FS Work Plan – submitted to ADEQ on March 1, 2013; FS Work Plan 30-Day Public Comment Period – April 5 to May 6, 2013. DRAFT FINAL FS WORK PLAN STATUS

8. Haley & Aldrich, Inc. 8 Provides information on how to: Obtain a copy of the Draft Final FS Work Plan; Provide comments to ADEQ. PUBLIC NOTICE – DATED APRIL 5, 2013

9. Haley & Aldrich, Inc. 9 DRAFT FS REPORT STATUS Questions?