Drying a building where the water table starts close to the slab

Water in a West Memphis building rarely has far to fall. The city stands on more than a hundred feet of river-laid sediment with a seasonally high water table, and heavy Sharkey clay under the yards holds what the sky drops. Drying here is about moving water out mechanically, not about waiting for it to find its own way down.

Four different sources, four different jobs

The first question on any callback is where the water came from, because the answer sets the entire scope. A supply line or water heater failure produces clean water and a building that can often be dried in place. A sewer or drain backup is contaminated from the first minute. Rain entering through a roof or window opened by wind sits in between and turns dirtier the longer it sits in insulation. Water that arrives across the ground from outside — a swollen ditch, a field, a river backwater event — is treated as grossly contaminated Category 3 regardless of how clear it looks.

That last category is the one this city's history keeps producing. Backwater flooding hit the town site in 1912 and 1913, when the private levees here stood only three or four feet, and again in 1927 and 1937. Modern mainline levees have held since 1927, but flat ground still moves surface water into buildings during any hard rain. On December 25, 1987, twelve inches fell on a city already opened up by a tornado eleven days earlier, and the interior damage from that rain outweighed a great deal of the wind damage that preceded it.

1. You callOne number per county. The dispatcher takes the address, the ZIP and a short description of what happened.
2. A local crew calls backAn independent restoration contractor already working that county rings you directly and sets a time.
3. They look, then scope itNothing is priced from a phone call. The crew walks the building, takes readings, and writes a scope you can hand to your adjuster.

What Category 3 water costs you in materials

Contaminated water is not a drying problem, it is a removal problem. Carpet and pad that took river or sewer water come out. Wet fiberglass batt insulation comes out. Drywall is cut above the visible line, usually to the next practical seam, because gypsum wicks moisture upward well past where the surface looks wet. Solid wood framing, concrete slab and masonry can generally be cleaned, dried and kept.

The framing and the slab are then dried under controlled conditions with air movement and dehumidification, monitored with meter readings rather than by feel, until the wood and the slab return to a stable moisture content matched against dry standards taken from unaffected parts of the same building. If anyone in the building is worried about what exposure to contaminated water means for them personally, that is a question for a doctor, not for a restoration crew.

Slab houses, warehouse floors and dock doors

Most of the residential stock here is built on slab. That removes the crawl space from the equation and puts the water directly on finished flooring, baseboard and the bottom of the wall cavity. The bottom plate stays wet after the surface looks dry, and wall cavities on interior partitions hold humid air with no path out. Drilling weep holes at the base of the drywall or removing baseboard to open the cavity is normal practice, and it is far less destructive than a full tear-out.

The commercial side is a different animal. Distribution and trucking buildings around the I-40 and I-55 interchange have thousands of square feet of open slab, racking loaded with product, and roof decks that can hold standing water above an insulated ceiling. Dock doors give a crew good equipment access but also let humid outside air straight back in, so containment and door discipline matter as much as the number of dehumidifiers. In the East Broadway brick storefronts the reverse applies: access is narrow, walls are shared, and moisture that enters one unit surfaces in the next one over.

Where the water in the ground comes from

West Memphis Utilities has drawn the city's supply from groundwater wells since 1940, disinfected with hypochlorite, serving roughly 20,138 people through the same city-owned commission that runs sewer and electric. Knowing the supply is well-based rather than surface-fed matters less than knowing who to call to shut a main, and that the water, sewer and electric sides are one organization here.

On the river side, the city's exposure is being addressed from outside the property line. A $16 million federal PROTECT grant awarded in 2024 funds the restoration of riverfront wetlands intended to hold floodwater back from the interstates. None of that changes what happens inside a building during a rain event, which is why the practical defense for most owners remains gutters that discharge away from the slab, graded soil, and a working sump or floor drain where one exists.

Questions people actually ask

Use the number above and the contractor will take it from there.