Data Center Cooling and Water Systems in Friendswood, Texas

Cooling is the largest consumer of water and space on a data center site, and in Friendswood the water question comes with a flood question attached. We design the mechanical yard first: chillers or dry coolers, pumps, piping, treatment and backup, all placed on ground that stays dry and drains well. The data hall comes after we know where the heat will go.

Friendswood covers about 21 square miles, nearly all land, and its southern side lies in Galveston County while the northern side reaches into Harris County. Clear Creek divides the school districts and also drives the major flooding the city has seen, including the damage from Hurricane Harvey in 2017. For a data center, that history is a design input. Any cooling plant, generator yard or electrical room has to sit above the flood line and be reachable when roads are wet.

We plan, estimate and schedule the work, and we supervise the mechanical, electrical and civil trade partners who build it. Our commissioning plan then proves the cooling system under heat load before the operator takes the keys.

A mechanical yard holds water, chemicals, fuel and high-voltage motors. We separate those hazards, provide containment and spill control, and write procedures for filling, flushing and treating systems. Confined-space entry and hot work on piping need written permits.

Flood and storm safety is part of the plan. We secure materials before heavy rain, keep excavations pumped and braced, and set equipment on elevated pads. Our construction cleanliness and safety program also keeps mud and debris out of pipes and electrical gear until start-up.

In June 2024 the city council approved, 5 to 2, a tax increment zone covering 326 acres on FM 528 and lasting through the end of 2054. The stated reasons included a thin road network, no regional lift station for wastewater and both water and sewer service said to be near capacity. A cooling plant is a real user of both, so we read that finding closely. For a cooling plant that needs makeup water and a discharge path, that matters directly.

We ask the city early what water and sewer capacity is truly available for a mission-critical use and when improvements are planned. If supply is tight, we compare closed-loop and air-cooled designs that use far less water. The decision is made with numbers on the table, not after a surprise at tap-in.

The same capacity problem affects discharge. Blowdown from cooling towers and flush water from commissioning must go somewhere, and a sewer system with no spare capacity cannot take it. We plan temporary storage and hauling where needed, and we describe the discharge in the permit submittal so reviewers see it before the first fill.

AI and GPU cloud operators run dense racks that push cooling to its limit, and they care about liquid distribution, heat rejection and water use. Enterprise owners in healthcare and energy have smaller rooms but still need dependable chilled water and clear commissioning records.

Edge operators want compact packaged cooling that sits on a pad and needs minimal makeup water. We describe the cooling options in terms of cost, noise, water and risk, and we let the operator choose. Many owners in this part of the Houston area also ask how the plan holds up in a storm: whether the plant can keep running on backup power, whether fuel deliveries can reach the yard and whether staff can reach the building. We answer those questions on the drawings, with the access roads and the flood line shown.

Our mechanical scope covers grading and drainage, pads and structure, underground and above-ground piping, electrical feeds, water service, treatment, controls and the connection to the data hall. We also coordinate noise screening and landscape requirements with the city.

At the end we test. Pipes are pressure tested and flushed, pumps and chillers are started under the vendor's supervision, controls are verified and load banks put heat into the system. The owner's agent witnesses each step. The staged tests are described under integrated systems commissioning.

Cooling work usually involves chiller and cooling plant pads, cooling water supply and reuse lines and liquid cooling infrastructure coordination for dense halls.

Stormwater design is closely tied to all three,, and detention basins, outfalls and grading are what keep a yard dry. A yard that drains poorly can flood pumps and electrical rooms, so we design detention and outfalls before we finalize equipment locations.

Friendswood City Center, a mixed-use project of 106 acres at FM 528 and Bay Area Boulevard, broke ground on April 18, 2024. Its plan calls for a retail component of 150,000 square feet, medical offices and clinics totaling 200,000 square feet, 500 apartments and a station for the fire department, so the site will draw many new neighbors. In western League City and southern Friendswood, the county also agreed to sell 21 acres to the state for $3 million to help finish the Grand Parkway, reported in December 2024.

New development adds load on water, sewer and power, and it adds neighbors who will notice noise. We design for both: low-noise equipment, screening and a clear story about where water comes from and goes. At the commissioning stage the cooling plant is the system that takes the longest to prove, because it has to be filled, treated, run and loaded in sequence, and we hold time in the schedule for each step. Skipping a step to save a week usually costs a month later.

Nearby markets include Pearland, Pasadena and Baytown, and we compare them with Friendswood on cooling water availability, flood exposure and schedule.

Send the parcel, the planned load and any water information you have. We will return a mechanical yard layout, a flood review and a cooling options comparison for Friendswood.

How much water does a data center cooling plant use?

It depends on the design. Air-cooled and closed-loop systems use little. Evaporative systems use more, especially in hot weather. We ask the utility about capacity and design to fit.

How do you design for flood risk?

We review flood mapping, set equipment above the expected water level, route drainage away from critical rooms and plan access for wet conditions. Where a parcel cannot meet those needs, we say so early.

What is commissioning of a cooling plant?

It is a series of tests: pressure tests, flushing, equipment start-up, controls verification, load bank tests and integrated tests with the electrical system. The owner's agent witnesses each step.

Can liquid cooling be added later?

Often, if the plan allows for it. We size pipe headers, structure and electrical feeds for future loads and leave valved connections so the added cooling can be tied in without a shutdown.

Will cooling equipment disturb neighbors?

It can, which is why we select quieter equipment, place it away from property lines and add screening. Noise limits are reviewed with the city during permitting.