Wilson Creek Plant Expansion

Project Overview

EXPANSION TO 64 MGD (PLANT II IMPROVEMENTS)

WHY:  To provide additional average daily flow capacity to Plant II

WHAT:  Adding an eight million gallons per day treatment train (two primary clarifiers, one biological nutrient removal basin, one secondary clarifier, four disc-filter units, and one ultraviolet disinfection channel) to Plant II, and replacement of one-half of the existing solids handling building

WHERE:  Located in Allen, serves cities of Allen, Anna, Fairview, Frisco, Lucas, McKinney, Melissa, Parker, Plano, Princeton, Prosper and Richardson

WHEN:  Design began in 2016.  Construction began October 2017.  Anticipated final completion June 2019.

HOW MUCH:  $53 million

 

ADVANCED TREATMENT AND HEADWORKS IMPROVEMENTS (PLANT I IMPROVEMENTS)

WHY:  To provide additional peak flow treatment capacity to Plant I

WHAT:  Adding a BioActflo process for advanced treatment and increased peak flow capacity, expansion of the existing headworks and outfall structure

WHERE:  Located in Allen, serves cities of Allen, Anna, Fairview, Frisco, Lucas, McKinney, Melissa, Parker, Plano, Princeton, Prosper and Richardson

WHEN:  Design began in 2015.  Construction began September 2016.  Anticipated final completion November 2019.

HOW MUCH:  $44 million

 

ELECTRICAL IMPROVEMENTS (PHASE IB & PHASE II)

WHY: To improve operational and maintenance capability by replacing and upgrading the electrical systems of Plant I and II

WHAT: Replace inner (Phase IB) and outer (Phase II) loop electrical distribution systems; Upgrade electrical components (Phase 1B and Phase II); Install emergency generators and parallel switchgear that will sync seamlessly with Oncor system (Phase II)

WHERE: Located in Allen off Orr Rd, serving cities of Allen, Anna, Fairview, Frisco, Lucas, McKinney, Melissa, Parker, Plano, Princeton, Proposer and Richardson

WHEN: Design began in 2014.  Construction began December 2016.  Anticipated final completion July 2018 (Phase IB); Design began in 2017.  Anticipated start of construction July 2018.  Anticipated final completion July 2020 (Phase II)

HOW MUCH: $6 million (Phase 1B) $12 million (Phase II)