Water & Wastewater

Cooling systems, water supply, wastewater, reuse, and conservation.

Representative photograph of cooling infrastructure at a data center in Mesa, Arizona. Not Project Mustang. Photo: Rsparks3 / Wikimedia Commons (CC0 1.0).

The August 7 plan contains the most specific Project Mustang water and wastewater figures identified to date, while expressly stating that final numbers will be established during site-plan review.

Last verified September 5, 2026

What the Current Project Records Show

Official submittal

Closed-loop cooling proposed

The EC Plan says building HVAC systems are to use closed-loop cooling for industrial use, with system water volume not to exceed 5 million gallons of reuse water per building HVAC system for initial fill.

Proposed / documented
Official submittal

125,000 GPD reuse-water estimate

The submitted water table gives an anticipated total reuse-water demand of approximately 125,000 gallons per day and states an intent to use reuse water for as many uses as possible.

Approximate proposal
Official submittal

13,450 GPD domestic-water estimate

The plan estimates approximately 13,450 gallons per day of domestic water and approximately 60,200 gallons per day of sanitary flow returned to the wastewater treatment plant.

Approximate proposal
Official submittal

City utility service anticipated

Domestic water is anticipated from an existing 8-inch City water line north of the property; wastewater and reclaimed-water service are anticipated from the southwest. Final utility improvements are deferred to later engineering and City coordination.

Proposed / documented
Proposed / documented

Four customary domestic wells

The hearing and planning materials describe four domestic wells for customary domestic use in addition to planned City/reuse-water infrastructure.

Proposed / documented
Proposed / documented

Initial cooling-system fill from reuse water

The concept calls for reuse water for initial closed-loop cooling-system fill, with the plan limiting initial fill to no more than 5 million gallons per building HVAC system. City Manager approval may allow domestic water if reuse service is not yet available.

Proposed / documented

Important Qualification

The submittal itself says these water numbers are approximate and that final figures will be established during the site-plan phase. The current figures therefore should not be treated as final enforceable maximums unless later approvals or agreements make them binding.

What Is Still Unknown

  • Final campus-wide water demand at full buildout.
  • Final capacity and routing of reclaimed-water, water and wastewater improvements.
  • Whether the approximate daily figures become enforceable caps.
  • How water demand changes if the final cooling design changes.
  • Responsibility and cost allocation for required utility improvements.
Official recordFinal figures unresolved

Primary sources: Project Mustang Employment Center Plan Submittal, Kimley-Horn, August 7, 2026, City of Taylor case PZ-2026-2715; and August 18, 2026 Taylor Planning & Zoning hearing disclosures. Proposed figures remain subject to later engineering, permitting and site-plan review. Documents & sources →