Alex Becker specializes in environmental assessment and remediation projects for commercial and industrial facilities. This includes conducting Phase I and Phase II environmental site assessments to evaluate contamination and establish baseline conditions. Becker also manages environmental remediation projects, which may involve excavating and treating contaminated soil, in-situ remediation techniques, abatement/demolition, monitored natural attenuation, and engineering and institutional controls. Figure 1 shows a proposed excavation area and extent of contamination at a project site.

1. AN INTRODUCTION TO ALEX BECKER WITH

2. SPECIALIZING IN COMMERCIAL-SIZED ENVIRONMENTAL ASSESSMENT AND REMEDIATION PROJECTS Commercial Facilities : gas stations dry cleaners auto service centers metal finishers asbestos/mold

3. SPECIALIZING IN COMMERCIAL-SIZED ENVIRONMENTAL ASSESSMENT AND REMEDIATION PROJECTS Industrial Facilities: manufacturers petroleum production sites railroads mining / aggregate operations

4. SPECIALIZING IN COMMERCIAL-SIZED ENVIRONMENTAL ASSESSMENT AND REMEDIATION PROJECTS Land Development / Redevelopment: retail centers oil fields agriculture

5. FIGURE 1 PROPOSED SOIL EXCAVATION AND TREATMENT AREA 11584 Wilson Cir. Parker, CO 80134 FN: BECKER DOCUMENT NO. EXCAVATION AREA PROPOSED BY OTHERS 8/08 LANDSCAPING COMPANY 33415 Highway 6 Edwards, Colorado 1/06/09 PROJECT NO. B&B Excavating LEGEND WETLANDS SPRING LAKE PROPOSED SOIL EXCAVATION PROPOSED SOIL STOCKPILE AREA PROPOSED SOIL TREATMENT AREA DIESEL SOURCE AREA SCALE: FEET 0’ 200’ 400’

6. ENVIRONMENTAL SITE ASSESSMENTS Phase I: Testing for contamination where it is most likely to exist Compare results to applicable standards for anticipated land use Phase II: Evaluate for recognized environmental conditions

7. ENVIRONMENTAL REMEDIATION Design / Permitting / Costing Regulatory Negotiations Prepare Corrective Action Plans (CAPs) and Voluntary Cleanup Plans (VCUPs) Project management Contracting and oversight Reporting and closure requests Planning Implementation

8. ASTM PHASE I KEY TERM Recognized Environmental Condition: “ the term means the presence or likely presence of any hazardous substances or petroleum products under conditions that indicate an existing release, a past release, or a material threat of a release of any hazardous substances or petroleum products into structures on the property or into the ground, ground water, or surface water of the property”

10. ADDITIONAL ENVIRONMENTAL CONSIDERATIONS Asbestos-containing building materials Radon Lead-based paint Lead in drinking water Wetlands Regulatory compliance Cultural and historic resources Industrial hygiene Health and safety Ecological resources Endangered species Indoor air quality Biological agents Mold Vapor intrusion

11. PHASE II ENVIRONMENTAL SITE ASSESSMENTS Well installation and groundwater monitoring Soil and soil vapor sampling Establish baseline conditions

12. PHASE II ENVIRONMENTAL SITE ASSESSMENTS Identify applicable regulatory standards Reporting / No Further Action (NFA) requests Long-term groundwater quality monitoring

13. ENVIRONMENTAL REMEDIATION Excavation

14. ENVIRONMENTAL REMEDIATION In-Situ Remediation

18. FIGURE 1 PROPOSED TACO BELL EXCAVATION AREA 11584 Wilson Cir. Parker, CO 80134 FN: BECKER DOCUMENT NO. SCALE: FEET 0’ 40’ 6390 Sheridan Blvd. Arvada, Colorado 10/20/08 PROJECT NO. MEIN LEGEND 9 MAXIMUM DEPTH OF CONTAMINATION (FEET) 8 8 11 10 MAXIMUM EXTENT OF CONTAMINATION EXTENT OF PROPOSED EXCAVATION LOCATIONS IDENTIFIED FOR TREATMENT BY OPS 15 10 11 11 10 10 12 9 10 11 14.5 10 SOIL CONTAMINATION BELIEVED TO BE EXCAVATED DURING CONSTRUCTION IN 2001. 11 14.5

21. ENVIRONMENTAL REMEDIATION Abatement / Demolition

24. ENVIRONMENTAL REMEDIATION Monitored Natural Attenuation Engineering and Institutional Controls

26. REVIEW RECORDS Standard Historical Sources: Historical Aerial Photographs

31. tanks (USTs), derricks, piping, pump stations, wells Petroleum Equipment

32. Used Batteries

33. may leak hazardous materials into the environment Drums

34. may indicate current or past groundwater contamination monitoring Monitoring wells can be associated with offsite sources i.e. gas stations, dry cleaners, industrial processes

50. Robin Fryberger , P.E. – 303-699-7870 [email_address] Alex Becker IV, P.G. – 303-345-1129 [email_address] www.sundanceenv.com