DRAFT—SUBJECT TO CHANGE

1. Newtown model DRAFT—SUBJECT TO CHANGE 1

2. Newtown model Grid: 222 rows 234 columns Cells: 10 feet in centers near wells 50 feet 100 feet 400 feet near edge DRAFT—SUBJECT TO CHANGE 2

3. Newtown model inactive area Time: An initial SS stress period Transient with 144 stress periods Begin: 7/25/07 midnight End: 8/7/2007 midnight Hourly stress period length at start (when pumps turned on) and end (pumps turned off) of test. After start, lengths vary from 4 hours to 8 hours to 4 hours. Includes about 1.5 days of no pumping before test and 4 days of no-pumping recovery time. 3 DRAFT—SUBJECT TO CHANGE

4. Newtown model Streams: 39 segments Used average conductance from original model (3,369 ft2/d) as a constant and also proportioned it by cell size. inactive area Constant head cells: Head in cell equals land surface minus 10 feet 4 DRAFT—SUBJECT TO CHANGE

5. Newtown model Hydraulic conductivity: Used surface materials shape file and set sand and gravel = 60 ft/d: all else = 15 ft/d. Will use updated K zone polygon map when available. 5 DRAFT—SUBJECT TO CHANGE

6. Newtown model Wells: Used variable pumping rates during test from report. Well 3 = average 113 gpm or 21,753 ft3/d Well 7 = average 460 gpm or 88,550 ft3/d Well 3 Well 7 6 DRAFT—SUBJECT TO CHANGE

7. Newtown model K = 60 ft/d Depth= 85 ft 7 DRAFT—SUBJECT TO CHANGE

8. Newtown model K = 60 ft/d Recharge event Depth= 80 ft Dist= 114 ft 8 DRAFT—SUBJECT TO CHANGE

9. Newtown model K = 60 ft/d Recharge event Depth= 20 ft Dist= 114 ft 9 DRAFT—SUBJECT TO CHANGE

10. Newtown model K = 60 ft/d Recharge event Depth= 92 ft Dist= 180 ft 10 DRAFT—SUBJECT TO CHANGE

11. Newtown model K = 60 ft/d Recharge event Depth= 14 ft Dist= 180 ft 11 DRAFT—SUBJECT TO CHANGE

12. Newtown model K = 60 ft/d Recharge event Depth= 41 ft Dist= 159 ft 12 DRAFT—SUBJECT TO CHANGE

13. Newtown model K = 15 ft/d Depth= 63 ft 13 DRAFT—SUBJECT TO CHANGE

14. Newtown model K = 15 ft/d Recharge event Depth= 23 ft Dist= 200 ft 14 DRAFT—SUBJECT TO CHANGE

15. Newtown model K = 15 ft/d Recharge event Depth= 47 ft Dist= 215 ft 15 DRAFT—SUBJECT TO CHANGE

16. Newtown model K = 15 ft/d Recharge event Depth= 42 ft Dist= 71 ft 16 DRAFT—SUBJECT TO CHANGE

17. Newtown model K = 15 ft/d Recharge event Depth= 33 ft Dist= 71 ft 17 DRAFT—SUBJECT TO CHANGE

18. Newtown model K = 15 ft/d Recharge event Depth= 34 ft Dist= 280 ft 18 DRAFT—SUBJECT TO CHANGE

19. Approach for contributing area delineation: Hoping to use box models to match pumping tests. Incorporate aquifer properties from box model in regional model. Then use regional model to delineate contributing areas. If not, then use hydraulic properties from box model match of pump tests in developing regional model, then go back to box models and use fluxes from regional model at the box model boundaries, then delineate contributing areas with the box models. 19 DRAFT—SUBJECT TO CHANGE

20. Newtown model Preliminary contributing areas: Steady state model North wells registered rate: well 3; 270 gpm = 51,975 ft3/d well 7; 467 gpm = 89,898 ft3/d Recharge rate: 24 in/yr = 0.0054790 ft/d for sand and gravel Still to try: 24 in/yr for sand and gravel and 8 in/yr for till 20 DRAFT—SUBJECT TO CHANGE

21. Newtown model Preliminary contributing areas: Steady state model Recharge rate: 24 in/yr Well 3 goes dry at rates above 22,000 ft3/d 21 DRAFT—SUBJECT TO CHANGE

22. Newtown model Recharge rate: 24 in/yr = 0.0054790 ft/d Check on pumping rate versus recharge rate and resulting contributing area: Well 7 Well 3 Rate in model: 89,898 ft3/d 22,000 ft3/d Resulting polygon contributing area: 16,290,000 ft2 3,970,000 ft2 Calculated pumping rate (contributing area * recharge rate): 89,253 ft3/d 21,752 ft3/d 22 DRAFT—SUBJECT TO CHANGE

23. Newtown model Still need (for whole basin): -Hydraulic conductivity zone polygons -Latest recharge zone polygons -Finalize approach for delineation of contributing areas 23 DRAFT—SUBJECT TO CHANGE

24. United model 24 DRAFT—SUBJECT TO CHANGE

25. inactive area United model Grid: 222 rows 224 columns Newtown Cells: 10 feet in centers near wells 50 feet 100 feet 400 feet near edge United inactive area 25 DRAFT—SUBJECT TO CHANGE

26. United model Time: An initial SS stress period Transient with 161 stress periods Begin: 8/25/07 midnight End: 9/5/2007 midnight Stress period length at 4 hours until 9/1/07 midnight, then hourly before, during, and after test (9/4 to 9/5). 26 DRAFT—SUBJECT TO CHANGE

27. United model Streams: 34 segments Used average conductance from original model (3,369 ft2/d) as a constant and also proportioned it by cell size. Constant head cells: Head in cell equals land surface minus 10 feet 27 DRAFT—SUBJECT TO CHANGE

28. United model Hydraulic conductivity: Used surface materials shape file and set sand and gravel = 60 ft/d: all else = 15 ft/d. DRAFT—SUBJECT TO CHANGE 28

29. United model Wells: Used variable pumping rates during test from report. Well 2 = average 570 gpm or 110,000 ft3/d Registered rate = 144,375 ft3/d 29 DRAFT—SUBJECT TO CHANGE

30. United model 30 DRAFT—SUBJECT TO CHANGE