Revised On: March 27, 2023 - 4:30 p.m.

Ambient Groundwater Monitoring Program

20-Year Overview (1995 – 2015) | View Report >

15-Year Overview (1995 – 2009) | View Report >

Agua Fria Basin

2004 – 2006 | View Fact Sheet > | View Report >

Aravaipa Canyon Basin

2003 | View Fact Sheet > | View Report >

Avra Valley Sub-Basin

1998 – 2001 | View Fact Sheet > | View Report >

Big Sandy Basin

2003 – 2004 | View Fact Sheet > | View Report >

Bill Williams Basin

2003 – 2009 | View Fact Sheet > | View Report >

Butler Valley Basin

2008 – 2012 | View Fact Sheet > | View Report >

Cienega Creek Basin

2000 – 2001 | View Fact Sheet > | View Report >

Detrital Valley Basin

2002 | View Fact Sheet > | View Report >

Douglas Basin

1995 – 1996 | View Fact Sheet > | View Report >

Dripping Springs Wash Basin

2004 – 2005 | View Fact Sheet > | View Report >

Fort Valley Septic Study

1997 | View Report > 

Gila Bend Basin

2012 – 2015 | View Fact Sheet > | View Report >

Gila Valley Sub-Basin

2004 | View Fact Sheet > | View Report >

Harquahala Basin

2009 – 2014 | View Fact Sheet > | View Report >

Hualapai Valley Basin

2000 | View Fact Sheet > | View Report >

Lake Mohave Basin

2003 | View Fact Sheet > | View Report >

Lower San Pedro Basin

2000 | View Fact Sheet > | View Report >

Lower Gila Basin

2013 – 2017 | View Fact Sheet > | View Report >

McMullen Valley Basin

2008 – 2009 | View Fact Sheet > | View Report >

Meadview Basin

2000 – 2003 | View Fact Sheet > | View Report >

Pinal Active Management Area

2005 – 2006 | View Fact Sheet > | View Report >

Prescott Active Management Area

1997 – 1998 | View Fact Sheet > | View Report >

Ranegras Plain Basin

2008 – 2011 | View Fact Sheet > | View Report >

Sacramento Valley Groundwater Basin

1999 | View Fact Sheet > | View Report >

Salt River Basin

2001 – 2015 | View Fact Sheet > | View Report >

San Bernardino Valley Basin

2002 | View Fact Sheet > | View Report >

San Rafael Basin

2002 | View Fact Sheet > | View Report >

San Simon Sub-Basin

2002 | View Fact Sheet > | View Report >

Sierra Vista Basin (in conjunction with the USGS)

1996 | View Fact Sheet > | View Report >

Tiger Wash Basin

2014 | View Fact Sheet > | View Report >

Tonto Creek

2002 – 2012 | View Fact Sheet > | View Report >

Upper Hassayampa Basin

2003 – 2009 | View Fact Sheet > | View Report >

Virgin River Basin

1997 | View Fact Sheet > | View Report >

Western Mexican Drainage Basin

2016 – 2017 | View Fact Sheet > | View Report >

Willcox Basin

1999 | View Fact Sheet > | View Report >

Yuma Basin

1995 | View Fact Sheet > | View Report >