Wastewater Treatment Facility Phase 2 Expansion

The Town of Dundee built it’s first WWTF in 1999 as part of a multi-phase sewer system development project. Envisors was the engineer working for the Town on all the phases of this project, in which Envisors prepared and processed a $3.5 million USDA grant and loan application. Since the completion of the Phase I WWTF, the Town’s wastewater customer base continued to increase, and the Town requested Envisors to expand the treatment and disposal capacity of its recently constructed 0.09 MGD Wastewater Treatment Facility (WWTF) to 0.7 MGD. In order to help finance this expansion, Envisors assisted the Town in collecting over $5 million in prepaid WWTF impact fees from developers. As a result, this Project was financed 100% by developers with no direct cost to the Town.

The Town desired to expand its 0.09 MGD extended aeration WWTF to 0.7 MDG. As part of this expansion, Envisors scope of work encompassed the planning, design, permitting, bidding, and construction of:

• New headworks structure with screen and splitter box;
• Two aeration tank/clarifier packaged plants with steel walls;
• Conversion of previous packaged plants to digesters;
• New chlorine contact chamber and liquid chlorination facilities;
• Percolation pond improvements to handle additional flow; and
• New operations building.

These improvements have been designed and permitted, and construction was completed in March of 2006. Envisors completed their design in five months and secured FDEP permit approval in three months. This extremely rapid design and permitting schedule was necessary to provide service to several developments that needed wastewater service immediately.