Removal of water, sediment, sludge, trash and debris from underground detention vaults and the stormwater components tied to them.
Underground detention vaults around Cibolo do a quiet job until they don't. These systems sit below parking lots and common areas in Bentwood Ranch, Falcon Ridge, and Buffalo Crossing, catching runoff before it leaves the site. The expansive clay soil under most of Guadalupe County sheds fine sediment fast once a storm hits, and that sediment has to go somewhere. Usually it ends up in the vault, settling into layers that a visual drive-by from the parking lot will never show you.
Open the hatch on a vault that has gone a couple of years without attention and the signs are consistent. A forebay silted in tighter than it was built for. Drawdown that takes two or three days longer than it used to after a hard rain. Trash and organic debris caught at the outlet, sometimes enough to back water up into the pipe runs. Because so much of Cibolo's development is newer, with landscaping and ground cover still establishing on slopes and embankments, loose soil washes into the system more readily than it will once those areas mature. None of this is unusual. It is just what clay ground and young subdivisions do to a stormwater system over time.
Working with Corral Bros on this scope starts with a straightforward look, not a sales pitch. We walk the vault with you or your maintenance contact, check sediment depth and water levels, and give you a clear scope before anything is scheduled. The crew handles dewatering, sediment and sludge removal, trash cleanout, and the connected pipes and chambers, working under confined-space safe practices throughout. You get a system that drains the way it was built to drain, and a point of contact who already knows your site when it is time to check it again.
We're a local, family-built company that treats your Cibolo property like our own, tidy crews, clear pricing, and underground detention vault cleaning that holds up to Guadalupe County conditions. Available as a one-time project or part of an ongoing plan.
We schedule a free on-site visit, usually within 48 hours, and open the vault to look at sediment depth, standing water, and the condition of inlet and outlet pipes before quoting anything. For sites in Bentwood Ranch or Falcon Ridge with limited access hatches, we confirm equipment staging during that same visit. You get a straightforward scope and price, not a guess over the phone.
Most vaults serving newer subdivisions need cleanout every two to three years, but clay-heavy runoff can silt a forebay faster than that. If your board or management company has noticed slower drawdown after storms, standing water that lingers for days, or a maintenance letter from the county, that is usually the trigger to move the schedule up rather than wait for a fixed date.
We coordinate access and staging with the property manager or HOA ahead of time so parking and walkways near the vault stay usable. Most of the work happens around the hatch and any staging area for the dewatering and debris removal, not throughout the property. For retail centers and apartment communities we schedule to limit disruption to tenants and visitors during business hours.
Cibolo sits on expansive clay that moves with wet and dry cycles, so it carries heavy sediment into vaults during the area's hard, fast summer storms. That shows up as thick sludge layers in the forebay, slower drawdown than the system was designed for, and sometimes a partially blocked outlet pipe. Newer developments where landscaping is still filling in tend to see more loose soil wash in until ground cover matures.
The biggest factors are how much sediment and sludge has accumulated, whether connected pipes and chambers also need cleaning, and how much standing water has to come out before we can get to the solids. Access also matters: a vault with a tight hatch or limited equipment staging at a site in Buffalo Crossing takes longer than one with open access. We confirm all of this during the site walk before quoting.
Free, no-pressure estimate from a local crew. Call (737) 404-9343 or request a quote online.
