Drinking Water Engineering Review | Licensing Time Frames | ADEQ
Revised On: Aug. 1st, 2025 - 10:32 pm
Licensing time frames and processes are the number of business days (excluding weekends and State holidays) that ADEQ has to process the application and come to a final decision.1 Counting of days may be stopped for requesting additional information from the applicant. Licensing time frames are summarized as follows:
| License Category |
Administrative Completeness Review |
Substantive Review |
Overall Time Frame |
| Standard drinking water treatment facility, project or well approval to construct (ATC) |
16 |
37 |
53 |
| Complex drinking water treatment facility, project or well approval to construct (ATC) |
16 |
67 |
83 |
| Standard drinking water treatment facility, project or well approval of construction (AOC) |
16 |
37 |
53 |
| Complex drinking water treatment facility, project or well approval of construction (AOC) |
16 |
67 |
83 |
| Standard drinking water new source approval (NSA) |
16 |
37 |
53 |
| Complex drinking water new source approval (NSA) |
16 |
67 |
83 |
| Drinking water time extension approval |
16 |
16 |
32 |
1Per R18-1, Article 5
