Arizona ยท county water record
Water in Navajo County
What the state and federal record says about water here, before you look at any particular piece of ground. Every finding names the agency it came from.
- 9,926 Wells on record across 9,997 square miles
- 390 ft Well depth middle value across 1,014 of 9,997 square miles
- 110 ft Depth to water middle value across 30 of 9,997 square miles
Point at any square mile to read what is on it. Hover the maps below to compare them.
Navajo County by the square mile
Every finding on this page is one number for the whole county. These are the same records placed on the ground they came from.
Wells on record. Every well ADWR has a record of, exempt and non-exempt together.
- none on record (bare ground)
- up to 1
- 2
- 3 to 4
- 5 to 10
- 11 to 40
- over 40
9,997 surveyed sections, drawn 3 by 3 miles to a square. The shading is scaled against every county in Arizona, so a colour means the same thing on any of these pages. The outline is the county boundary from the Census Bureau: ground inside the line and outside the shading is ground nobody has drilled, filed on or addressed. Aerial imagery is the USGS National Map.
Worth knowing
Wells here may be treated as pumping the river
0.8% of the county lies in a subflow zone, where a well is legally drawing surface water and falls under the adjudication rather than under groundwater rules.
Arizona general stream adjudications 1 of 9 counties
0.8% here 1st of 9 One bar per Arizona county from lowest to highest. Point at one to name it.
Stands out
The water table here is falling faster than it used to
Twenty years of monitoring show -0.6 feet of change and the last ten show -2.5. Half the record has produced more than half the drop, so the decline is steepening rather than levelling off. A well drilled to a depth that worked ten years ago has less margin than the twenty-year figure suggests.
ADWR groundwater level change 1 of 10 counties
-0.2 ft/yr here 1st of 10 One bar per Arizona county from lowest to highest. Point at one to name it.
Worth knowing
FEMA has never determined the flood risk for most of this county
68% of the county is FEMA Zone D, which means undetermined hazard. Nobody has looked. That is a different thing from being studied and coming back outside the floodplain, and a lender or an insurer will treat the two differently.
FEMA National Flood Hazard Layer 4 of 15 counties
68% here 4th of 15 One bar per Arizona county from lowest to highest. Point at one to name it.
Context
Wells here have to go a long way down
The typical well is 390 feet deep, across 9,926 wells on record. Drilling is priced by the foot and the casing with it, so depth is the first line of any estimate for putting water on raw land, and it is the number a seller is least likely to volunteer.
ADWR wells registry 7 of 15 counties
390 ft here 7th of 15 One bar per Arizona county from lowest to highest. Point at one to name it.
Stands out
Much of this county is tribal land
69% of the county is tribal land, where water rights are federally reserved and settled separately from the state system.
Arizona general stream adjudications 1 of 13 counties
69% here 1st of 13 One bar per Arizona county from lowest to highest. Point at one to name it.
Context
The land here is sinking where the aquifer was drawn down
33 mapped subsidence features and no confirmed fissures yet. Subsidence is what precedes a fissure, and it is worth knowing about before it becomes one.
AZGS earth fissure and subsidence mapping 8 of 9 counties
33 here 8th of 9 One bar per Arizona county from lowest to highest. Point at one to name it.
This is the county. Your question is probably a property.
None of the above is about a particular parcel. Water is not parcel-shaped: the ditch serving the ground runs through other people's land and the senior right that curtails it sits somewhere else, which is why the state files by survey section rather than by property. Check an address and you get the square mile it sits in, with the wells, the rights and what was actually diverted.
Check a property in Navajo County