Phase 1 Update: Mayo Tank Replacement Moves Toward Construction

Anne Arundel County will soon bid out the construction work for Phase 1 of the Mayo Tank Replacement Project and then will select a contractor. Septic Tank Effluent Pump (STEP) tank replacements in the Phase 1 communities, Glebe Heights and River Club Estates, are planned to begin in spring 2027.

Where things stand

The County's Department of Public Works and its engineer are preparing the necessary documents required to put the Phase 1 construction work out for bid. Once the bids are reviewed, the County will select a contractor to replace the older fiberglass tanks with modern HDPE STEP tanks and update the electrical control panels that run them. We will share the contractor's name and a more detailed schedule closer to the start of work.

Phase 1 is the first of 12 phases that will carry the project through 2038.

The process for Phase 1 homeowners

Each Phase 1 homeowner has the opportunity to take part in four meetings. You know your property best, so your input shapes the plan.

  1. Planning Meeting

    This spring impacted homeowners were invited to a Planning Meeting with McCrone Engineering, the County's engineering consultant. Current property conditions were noted for items such as tank location, landscaping, fencing, and structures, and access concerns for equipment. The Planning Meetings are important because as-built drawings on file may not reflect changes made over the years, and this meeting captures today's conditions.

  2. Pre-Construction Meeting

    Before any physical work begins in the spring of 2027, you will review the Replacement Project Plan Document prepared for your property with the Contractor and the County’s Inspector. You confirm access points and work areas, flag special considerations for landscaping or structures, and agree on how we will communicate during construction. Inspection staff and construction representatives may join.

  3. Construction

    Crews will remove your existing tank and install the new one. Expect clearly marked work areas, safety fencing, temporary changes to yard access or driveway use, and equipment noise during work hours. Most replacements take one to several days, depending on site conditions and weather. Disturbed areas are seeded and strawed.

  4. Post-Construction Meeting

    The team will walk the finished work with you, confirm the installation is complete, address remaining questions, and ask you to sign the Replacement Project Plan Document, noting any next steps.

If an issue comes up after construction, report it to the project team so it can be reviewed and resolved.

  Stay Informed

The Mayo Tank Replacement Project page is the official source for schedules, maps, and updates. 

We encourage you to subscribe to project emails. Emails will be sent individually to impacted communities as they enter active phases.