Paper read at the 2014 AAG Annual Meeting in Tampa, FL | April 11th, 2014

1. Interactivity. Privacy. Uncertainty.
Mapping drinking water quality in Wisconsin
Roth. Severtson. Mead. Sack.
reroth@wisc.edu | @RobertERoth
Annual Meeting of the AAG
Tampa, FL | 11 April 2014

2. source UW Extension
Land Use
Soils/Surface Deposits
Depth to Bedrock
Geology/Aquifers
Groundwater Quality 101

3. from Groundwater to Drinking Water in WI

4. this is VGI…

5. this is VGI…
…with a COST

6. this is VGI…
…with a COST
✓test kit

7. this is VGI…
…with a COST
✓test kit
✓tax assessment

8. this is VGI…
…with a COST
✓test kit
✓tax assessment
✓well replacement

9. this is VGI…
…with a COST
✓test kit
✓tax assessment
✓well replacement
✓death

10. website http://gissrv2.uwsp.edu/cnr/gwc/pw_web/

12. discrete (D1) vs.
continuous (D2)
smooth (D3) vs.
abrupt (D4)

13. after: MacEachren & DiBiase (1991)

15. “well samples”

16. “extent of
contamination”

17. “source of
contamination”

18. “spread of
contamination”

19. access (D5)
privacy (D6)
aggregation (D7)

20. county: n>=25

21. township: n>=10

22. section: n>=5

23. accuracy (U1)
precision (U2)
trustworthiness
(U3-U9)

24. interrelatedness (U8)
credibility (U6)
currency (U3)

25. thematic map
types (R1-R4)

26. classification (R6)
mapped
statistic (R5)
scale (R8)

27. township=average

28. township≠maximum

29. section=maximum

30. operators (I3-I14)

31. retrieve (I11)
zoom (I14)

32. township=average

33. zoom-in; section=maximum

34. zmximumzoom-out; township=average

35. overlay (I6)
search (I12)

37. Interactivity. Privacy. Uncertainty.
Maps. Maps. Maps. Maps. Maps. Maps. Maps.
Roth. Severtson. Mead. Sack.
reroth@wisc.edu | @RobertERoth
Annual Meeting of the AAG
Tampa, FL | 11 April 2014