Gregg Manor Road
Ground Storage Tank and Pressurization Facility Improvements
Project Overview
The Gregg Manor Road Ground Storage Tank and Pressurization Facility Improvements Project expanded the City of Manor water distribution system to improve storage capacity, operational control and system reliability. Located in Manor, Texas, the project was designed in 2023 and constructed between 2024 and 2025, reaching substantial completion in November 2025.
The 1,440-square-foot facility includes two 250,000-gallon ground storage tanks, a 10,000-gallon hydropneumatic tank, a 1,000-gpm pump station, a chemical feed system, Supervisory Control and Data Acquisition (SCADA) controls and an emergency generator with an automatic transfer switch. The pump station is expandable to 1,500 gpm to accommodate future system demands.
The primary purpose of the project was to increase ground storage capacity and provide a more effective facility for receiving wholesale water service. By incorporating additional storage and pressurization infrastructure, the City can better manage system pressure while improving overall reliability within the water distribution network.
Initial Challenge
The City was required to construct a ground storage tank to meet contractual requirements associated with its wholesale water service. Previously, water from the wholesale provider entered the distribution system directly at full system pressure.
This arrangement limited operational flexibility and required greater energy to deliver water to the City’s system. It also provided no separation between the wholesale provider’s system and the City’s distribution network.
A new approach was needed to allow the City to receive water more efficiently while maintaining operational control and meeting contract obligations.
Engineering Solution
The project addressed these challenges by introducing ground storage tanks to receive wholesale water at a lower pressure. This configuration reduces the energy required to deliver water to the City and enables the system to accept larger volumes at higher rates.
Water delivered from the wholesale provider is stored in the new ground storage tanks before being pumped through the pressurization facility. The pump station then repressurizes the water to the pressure required for filling the City’s elevated storage tanks and serving the distribution system.
The facility includes a dual-control system that allows the City to operate the pump station through local hydropneumatic controls or through the City’s SCADA system using the water level in the west elevated storage tank. This flexible control strategy provides multiple operational options for managing system pressure and pump station performance.
Project Complexity and Coordination
One of the most complex aspects of the project involved integrating the pump station controls with other operational infrastructure. The control system needed to function in coordination with another pump station and the west elevated storage tank.
To address this, a stepped control narrative was developed to allow two pump stations to operate in parallel while maintaining operational flexibility through SCADA controls. This approach ensures the system can respond effectively to changing water demands and operating conditions.
Construction Challenges
The project experienced delays related to changes in standards from the electrical service provider, which had the potential to increase costs and impact the schedule. GBA worked closely with the electrical provider, City staff and the contractor to address these changes and maintain project progress without additional cost.
Another challenge involved electrical equipment lead times that threatened to delay completion. The project team coordinated with the contractor and City staff to modify electrical gear configurations, reducing the impact of equipment availability on the schedule.
Despite these challenges, the project was completed within budget and delivered before the City’s contractual deadline for bringing the pump station online.
Team Collaboration and Implementation
GBA supported the project from initial concept through construction. The team helped negotiate the wholesale water agreement, developed the project concept, designed the facility, obtained permits, managed the bidding process, and provided construction phase services.
During project implementation, GBA staff participated in system testing, startup, and commissioning. Working closely with City staff ensured the facility was configured to meet current operational needs and that operations personnel were familiar with system functionality.
Community Impact
The Gregg Manor Road facility improves the City’s ability to supply water to the community. The added ground storage capacity increases system reliability, while the pump station provides greater control over system pressure and operational efficiency.
By enabling the City to receive more water from the wholesale provider and manage distribution more effectively, the project strengthens the overall performance of the municipal water system and supports continued community growth.