Spatial Analysis of the Impact of Urbanization on the Ground Water in the City of Austin

1. Spatial Analysis of the Impact of Urbanization on the Ground Water in the City of Austin Student: Shipeng Fu Instructor: Dr. David Maidment Department of Civil Engineering University of Texas

2. Austin,1990 Austin,2000

3. Site locations for monitoring wells Monitoring Well Data source: City of Austin

4. Data Source: City of Austin

5. Parameters for Water Quality • Fecal Coliform • Total Phosphorus • pH value

6. Fecal Coliform

7. fecal coliform mean concentrations in Austin, Texas in 1998 and early 90’s

8. fecal coliform mean concentrations in Austin, Texas in1998

9. Normal QQ plot of fecal coliform of 1998

10. Trend Analysis of fecal coliform of 1998

11. Total Phosphorus

12. Total Phosphorus Concentration (mg/l) current total phosphorus concentration distribution

13. Total Phosphorus Animation Total Phosphorus Concentration (mg/l)

14. pH value phanimation.avi

15. current Ph value distribution Ph value

16. Data source: Lower Colorado River Authority Discharge points

17. In Summary The groundwater quality degraded with the growth of population. By using GIS, Total phosphorus and fecal coliform concentration are readily observed to be significantly related to the waste discharge, but pH value is not.

18. Work in progress • Find Population Density Data associated with the area that has relatively worse groundwater quality • Find land use data associated with the area that has relatively worse groundwater quality

19. Thank you