Public Notice

State 401 Water Quality Certification | Sonoita Creek Restoration Project

Posted On: Nov. 3rd, 2026 - 03:00 pm

On Nov. 4, 2026, the public comment period begins for the preliminary decision to issue a Clean Water Act 401 State Water Quality Certification to The Nature Conservancy for the Sonoita Creek Restoration Project located in Santa Cruz County, Arizona. The comment period ends on Dec. 4, 2026.

Applicant:

Kimberly Schonek, The Nature Conservancy

Project Name:

Sonoita Creek Restoration Project

Project Location:

Southwest of Patagonia, Arizona

Review Documents:

Original Published Public Notice | View Notice >
Draft Clean Water Act 401 Certification | View Cert >
In person at the ADEQ Record Center | Learn How >

Public Comment Period:

Dates: Nov. 4, 2026 – Dec. 4, 2026

Comments may be submitted as follows:

By Email | Email >
By Mail (Must be postmarked or received by Dec. 4, 2026):

ADEQ
Water Quality Division, Surface Water Section
Attn: Rosi Sherrill
1110 W. Washington St.
Phoenix, AZ 85007

Newly Posted Notices

ADEQ posts mandatory public notices in digital format on this webpage and hard copy notice boards located in the Phoenix Main Office and Southern Regional Office lobby areas | See Office Locations >