1. Eastham Water System Water Supply Investigations Status Update Board of Selectmen September 21, 2009

3. Project Coordination Activities Meeting with Cape Cod National Seashore – August 27 Meeting with Cape Cod National Seashore – August 27 Cape Cod Commission Cape Cod Commission USDA Meeting – September 16 USDA Meeting – September 16

4. Nauset Regional High School Drill Site

5. Drill Site at NRHS

6. Mud System

7. Drill Cuttings - Aquifer Zone

8. Well Screen

9. Well Development

10. Nauset High School Hydrogeologic Conditions Deep boring installed to 400’ Water table at 50’ Good material to 105’ Silts and clays below Installed well at 90’

11. District H

12. Hydrogeologic Conditions Summary Deep boring: 405’ bgs Deep boring: 405’ bgs DTW – 30’ bgs DTW – 30’ bgs Potentially productive zones: Shallow 106-116’ bgs Intermediate 207-217’ bgs Potentially productive zones: Shallow 106-116’ bgs Intermediate 207-217’ bgs Freshwater/Saltwater Interface 343 feet Freshwater/Saltwater Interface 343 feet

13. District H Well Installations Deep well: 346’ Intermediate well: 207’ Shallow well: 116’

14. District H Well Development

15. District H Well Development

16. District H Drill Log Potentially productive aquifer zone (sand) 80-218’ Fresh Water/Salt water interface: 143’ bgs Specific Capacity Shallow: 33 gpm/ft Intermediate: 5-10+ gpm/ft Water quality: Shallow – excellent Intermediate – Waiting on data Silt and Clay Sand Fresh Water Salt Water

17. District H Hydrogeologic Issues Response of salt water transition zone with pumping Response of salt water transition zone with pumping Proximity of vernal pools Proximity of vernal pools Groundwater/vernal pool interaction Groundwater/vernal pool interaction

18. District H Deep Test Well Tidal influences on water level in deep test well

19. Vernal Pools Single Family Residential > 80,000 sq. ft. General Business General Industrial Single Family Residential 40,000-79,999 sq. ft. Conservation/ Passive Recreation

20. District G Drill Site Drill site and 400’ buffer entirely within Town-owned land Currently installing deep boring Site has available land for more than one test site

21. Eastham Water Supply Investigations Updated Schedule

22. Discussion