1. A Design-Build Success Story Dick Sprague HDR, Inc. Landfill Gas Migration Control

2. Purpose & Background Design-Build Project Delivery –Emerging delivery system in public sector –Single source of responsibility Faster, less contentious delivery Not necessarily cheaper Landfill –Historic landfill cell began in early 1950s –New, lined landfill cell began in late 1990s –Landfill gas migration discovered in 2001

3. Landfill Site

4. Landfill Gas Migration Anaerobic decomposition –Predominantly methane and carbon dioxide March 2001 monitoring –High concentrations of Lfg at property boundary –>1,000 feet beyond property boundary May 2001 –Issued engineering RFP –Informed state agency & neighbors

5. Extent of Contamination

7. Design-Build Project Too little time for traditional design-bid-build 2-part contract –Several form contracts –AGC, AIA, EJCDC –DBIA is fairest to all parties –2-Part form contract includes: Terms & Conditions Scope Price & Schedule

8. Design-Build Project (cont.) Part I - Concept Design & Proposal –30% Design –Proposal for Part II Firm, fixed price based on bids Drilling subcontractor Equipment supplier Balance of construction contractor –Documents Belong to Owner Negotiate with Part I contractor Bid the work Cancel the project

9. Design-Build Project (cont.) Part II –Final Design –Construction, Start-up & Warantee –Firm schedule based on WES commitments Contract (part II) signed on September 27 Completion planned for December 14 –“Best Value” Selection

10. Design-Build Project (cont.)

11. Performance –Drilling subcontractor failed to perform Primarily his lower tier subs Third lower tier sub required to complete project –Flare station operational December 14, accepted December 18 –60 percent of wells operational on December 18; met commitment to state agency –Final completion January 18

12. Design-Build Project (cont.)

16. EventPlannedActual Engineering Contract June 18July 20 Construction Contract October 1September 27 Begin Construction October 15October 2 System StartupDecember 18 System CompleteDecember 15January 18

17. Design-Build Project (cont.) Lump Sum Price Change Orders Net Price

18. Design-Build Project (cont.) Lump Sum Price Change Orders Net Price $929,367 ($ 25,129) _________ $904,238

19. Questions?

20. Design-Build Project (cont.)