When a new subdivision is developed, the impact of those residents on the area's existing drinking water delivery and wastewater collection and treatment must be considered. As a result, subdivision developers are required to submit to ADEQ information on sanitary facilities that will serve their future residents.

This information includes the type of sanitary sewer collection system in place, information on the drinking water supply for the subdivision, and the number of potential connections to each system. ADEQ's water quality engineering and permitting staff works closely with developers to ensure that the systems to be used follow state requirements covering aquifer protection and drinking water distribution.

All subdivisions must obtain a Certificate of Approval of Sanitary Facilities for Subdivisions from ADEQ or its delegated agency before a public report can be issued by the Department of Real Estate. These requirements apply whether a subdivision is to be served by existing facilities or will use a new on-site treatment facility.

Contact the appropriate delegated authority listed below for specific information about Certificates of Approval of Sanitary Facilities for Subdivisions:

• City of Flagstaff Engineering Division, (928) 779-7650
• Kingman City Engineer, (928) 753-8122
• Sierra Vista, Development Services (520) 458-3315
• Maricopa County Environmental Services, Engineering Section (602) 506-6666
• Pima County Department of Environmental Quality (520) 740-6501
• Yavapai County Environmental Services Department (928) 771-3214

Guidance and Forms
If the subdivision is not located in any of the above listed areas, the application must be submitted to ADEQ using one of the following:

• Approval of Sanitary Facilities for Subdivisions

For general information on wastewater collection and treatment or drinking water:

• Wastewater Design Review
• Technical Engineering and Plan Reviews