Best Perc Test in Phoenix, AZ

What is a perc test and why do I need one in Arizona?

A perc or soil-absorption test measures how quickly effluent can move through native soil. In Arizona, a qualified soil/site evaluation is required before installing a new onsite system and is reviewed by ADEQ or your delegated county. Technical requirements are set out in 18 A.A.C. 9 as part of ADEQ's onsite wastewater program.

How much does a perc test cost in Arizona?

A perc test in Arizona typically costs $500 to $1,500, including soil profile evaluation. Municipal fees for health officer oversight add $100-$400. Total costs are higher than most states due to AZ's strict regulatory requirements and the involvement of licensed engineers or soil scientists.

What happens if my property fails the perc test in Arizona?

If conventional soil results do not meet 18 A.A.C. 9 requirements, you may be able to install an engineered or alternative onsite system if the site can support it. In dense urban areas, a failing lot may have no viable septic option and may need municipal sewer if available.

Who can perform a perc test in Arizona?

Soil evaluations and perc tests must be completed by a qualified professional (often a registered soil classifier or professional engineer) authorized by ADEQ or your delegated county onsite program. Follow the witnessing and documentation steps your permitting authority requires.