1. Proposed Expert Consultant Team for Koppers Superfund Siteby
Rick Hutton, P.E.
Water/Wastewater Supervising Engineer
Gainesville Regional Utilities
Gainesville City Commission Meeting
October 25, 2004

2. Cabot/ Koppers Site Superfund sites since 1983 Cabot Site Koppers Site
Pine tar/charcoal facility early 1900s thru 1967
Koppers Site
Wood treating operations since 1916
Contamination from creosote & other wood treating compounds
Gainesville City Commission Meeting October 25,2004, Slide: 2

3. Map Map showing Cabot Carbon / Koppers site and Murphree - JEA
Murphree Water Treatment Plant
Map showing Cabot Carbon / Koppers site and Murphree - JEA
Main Street
NW 23rd Ave.
Cabot Carbon \ Koppers Superfund Site
Gainesville City Commission Meeting October 25,2004, Slide: 3

4. Site Geology
25’ 0’
145’
Gainesville City Commission Meeting October 25,2004, Slide: 4

6. Status Water Supply is Safe & We Want to Keep it that Way
No contamination in GRU wells
Not an immediate threat
Appropriate & Decisive action needed now to ensure long-term protection
Gainesville City Commission Meeting October 25,2004, Slide: 6

7. Status (cont’d) Site geology & contamination complex
Final Remedy may be complex
Beazer proposal may include leaving significant amount of creosote in place
Beazer has expert team working for them
City needs high level expertise to protect its interests:
Appropriate site cleanup
Water supply protected
Confidence in safety of water supply
Gainesville City Commission Meeting October 25,2004, Slide: 7

8. Expert Consultant Team
World Renowned Experts in DNAPL/creosote field
Complimentary skills & strengths
Reliance on more than one opinion
Business Case
Gainesville City Commission Meeting October 25,2004, Slide: 8

9. Expert Consultant Team Tasks
Comprehensive review of site
Review Beazer & EPA Approach
Recommendations for further Actions
Assist in ensuring EPA & Beazer take appropriate actions
Gainesville City Commission Meeting October 25,2004, Slide: 9

10. Summary Water Supply is Safe & We Want to Keep it that Way
Decisive & appropriate action needed now to protect future
Team will assist City in ensuring appropriate & decisive action taken
Estimated Cost of team: $160,000
Estimated value of water supply: Priceless
Gainesville City Commission Meeting October 25,2004, Slide: 10

11. Murphree Capture Zone Map of Site and delineation of capture zone
Pumping Rate = 60 Million Gallons per Day
(Current Pumping Rate = 26 MGD)
Map of Site and delineation of capture zone

12. Murphree Capture Zone Map of Site and delineation of capture zone
Early Warning Network:
Existing
Future