What is the Engineering Review Program

The Engineering Review Program (ERR) conducts technical reviews of various infrastructure projects in Arizona that are related to ADEQs drinking and groundwater premits.

Drinking Water

The Drinking Water Program approves new drinking water wells, water distribution systems and point-of-use (POU) water systems.
Learn more on Engineering Review for drinking water | View ERR for drinking water  >


The Groundwater Program approves subdivisions, sewage collection systems, on-site wastewater (septic) systems, public/semi-public swimming pools and alternative on-site wastewater treatment products.  
Learn more on Engineering Review for ggroundwater | View ERR for groundwater >

Not sure who to submit your Engineering Review documents and applications to?

See ADEQs listing of Delegated Agencies | View Listing >