Oct. 1998 - "Tatlow said the
Department of Water Resources
will begin a subsidence monitoring program
in the Phoenix area by the end of the year.
... the aquifer below will never be able to hold as much water as it
used to, because the sediments have been permanently compacted....
Sun City is dropping 2.8 centimeters per year, and the area around Luke Air Force Base is
subsiding 2 to 3 centimeters a year."
Feb. 1999 - "Cracks Developing in Camelot Canyon"
May 1999 - "Large fissures, caused by the settling of land and pumping of underground water, crisscross the area. It is dangerous for a person to climb into a cracked area to remove debris...."
Oct. 1999 - "More fissures open near Queen Creek"
Aug. 2007 - Earth fissure near Queen Creek is filled in
Oct. 2007 - East Valley builders on shaky ground
Jan. 2008 - 25-foot sinkhole ties up Gilbert intersection
Feb. 2008 - Residents of sinking community seeking answers
June 2008 - Val Vista Drive in south Gilbert closed again
July 2008 - Property assessment shows effects of fissures
Jan. 2011 - Flood district weighs need to brace dams
Jan. 2017 - Arizona Geological Survey finds new fissure
Feb. 2017 - Update at tucson.com
Recharge in Arizona - Info about Central Arizona Project groundwater recharge projects