This section provides clear answers to the most common questions about the Mayo Tank Replacement Project.

Many tanks were installed in the 1980s and are nearing the end of their service life, so they are being proactively replaced to improve reliability and protect the system.

A STEP tank, or Septic Tank Effluent Pump tank, moves wastewater from individual homes into the community sewer system for treatment.

Schedules are based on tank age, system condition, community grouping, and the need to coordinate work efficiently across the peninsula.

Your tank will be replaced according to the Phase your community is in.  

Check Schedule

Properties outside named neighborhoods are evaluated individually and will be grouped with neighboring communities.  

Existing electrical lines will be reviewed during the planning process and accommodated to minimize disruption (likely using directional drilling) while maintaining safety and code requirements.

The project team verifies tank location, reviews site conditions, and documents any property-specific considerations shared by the homeowner.

Most tank replacements are expected to take one to several days, though timing can vary based on site conditions and weather.

Residents can contact the project manager assigned to this project with concerns by emailing pwmoor11@aacounty.org or the general customer service team at pwcust00@aacounty.org

You should share information about your property, including landscaping, access concerns, past changes, and anything that may affect construction.

This meeting is used to confirm site details, review planned work areas, and discuss any special needs before construction begins.

Any post-construction concerns should be reported to the project team so they can be reviewed and resolved as appropriate.