Statewide Groundwater Level Changes in AZ, Water Years 1993 to 2013, 2003 to 2013, and 2012 to 2013. T. Davis, J. Dieckhoff, and S. Stuk, 2014. Plate Download OFR-13 Plates.pdf (20 MB). Appendices Download OFR-13 Appendices.xslx (1 MB). Attention: For optimal printing results and Adobe compatibilty, Microsoft Internet Explorer is recommended.