Wylie Water Treatment Plant Upgrades

Project Overview

The Wylie Water Treatment Plant consists of four individual plants at one location.

  1. Wylie WTP I (70 MGD)  Built in 3 Phases: 1956-1965
  2. Wylie WTP II (280 MGD)  Built in 4 Phases: 1972-1988
  3. Wylie WTP III (280 MGD)  Built in 3 Phases: 1995-2003
  4. Wylie WTP IV (140 MGD)  Built in 2008; Expansion underway

Currently, we have several different projects taking place as we expand and upgrade our plants.

 

PLANT I REHABILITATION & UPGRADES

WHY: To rehabilitate our 60-year-old water treatment plant and bring it up to modern standards, and fully utilize the capacity of existing storage at the Wylie Water Treatment Plant

WHAT: Rehabilitate clearwells and pump station; Install new interior lining; Replace junction gates, influent gates, and isolation valves; Install new pumping units, pipelines, and electrical instrumentation

WHERE: Located at the NTMWD Water Treatment Plant in Wylie

WHEN: Design began in 2014. Construction started in August 2016. Anticipated completion in 2018. Other upgrades planned for 2018 at additional cost.

HOW MUCH: $11.5 million

 

PLANT II FILTER REHABILITATION

WHY: To improve the water treatment filtration process at Plant II and convert the system to Biologically Active Filters (BAF) to improve water quality

WHAT: Install biologically active filters; Replace 55 valves ranging from 12-36 inches in diameter; Replace filter underdrains; Install deeper filter media; Raise wash water troughs and gullet walls; Sandblast and coat filter walls

WHERE: Located at the NTMWD Water Treatment Plant in Wylie

WHEN: Board approved in Oct. 2012. Construction started in Dec. 2014. Completion expected in early 2019.

HOW MUCH: $15.6 million

 

PLANTS I & II SLUDGE HANDLING IMPROVEMENTS

WHY: To rehabilitate our 37-year-old sludge handling pump station and bring it up to modern standards and improved functionality

WHAT: Rehabilitate pump station; Install new submersible pumps, lagoon discharge lateral, suction and discharge piping; Replace discharge valves on existing sludge lagoon laterals; upgrade electrical instrumentation

WHERE: Located at the NTMWD Water Treatment Plant in Wylie

WHEN: Design began in 2014. Construction started in December 2016. Anticipated completion in 2017.

HOW MUCH: $1.8 million

 

PLANT IV EXPANSION

WHY: To increase treatment capacity for the regional water system to meet future water demands

WHAT: 70 MGD expansion project will increase total treatment capacity to 840 MGD; New pumped rapid mix facilities; New flocculation and sedimentation basins; 10 new filters; New ozone disinfection facility; Additional chemical storage and feed facility

WHERE: Located at NTMWD Water Treatment Plant in Wylie

WHEN: Construction started in January 2017. Completion expected in 2019.

HOW MUCH: $88.5 million