Inspection, cleaning and maintenance of stormwater best management practices, from ponds and swales to filters and underground structures.

Most calls about stormwater BMP maintenance in Marble Falls come from an HOA board at Meadowlakes or a property manager near Horseshoe Bay who just watched a forebay stay full three days after a storm that ended Tuesday morning. Someone finally walks the pond, sees cattails where the inlet used to be visible, and starts dialing contractors.
Granite country does specific things to a basin. Runoff off pink granite outcrops moves fast and carries less clay but more coarse sediment than black-land soil, so forebays here fill with grit rather than silt, and they fill quicker than the design charts assume. Lake-adjacent lots around Horseshoe Bay and Gregg Ranch often have thin topsoil over rock, which means embankment slopes stay bare longer after construction and erode in sheets during a hard rain instead of absorbing it. Add a few seasons of neglect and you get volunteer hackberry and cedar rooting into the dam face, an outlet structure half-choked with granite fines, and a drawdown time that has quietly doubled.
Working with Corral Bros starts with a site walk, not a sales pitch. We look at the pond, the swales feeding it, any underground structure, and tell you plainly what is functioning and what is not. From there we handle the cleaning, the vegetation and slope work, and the drainage inspection on a schedule that fits your property, and we leave you with compliance-ready documentation for your files and your engineer.
We're a local, family-built company that treats your Marble Falls property like our own, tidy crews, clear pricing, and stormwater bmp maintenance that holds up to Burnet 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 of your call, and walk the pond, swales, and any inlet or outlet structures with you or your onsite contact. You get a plain-language read on condition and a scope before any work starts. No obligation to proceed, and no guessing over the phone about a basin we have not seen.
Most of the properties we see need a full inspection and cleaning once or twice a year, with a closer look after any major storm event. Granite-shed runoff moves sediment into forebays faster than clay-soil sites, so a pond that looked fine in spring can show a silted inlet by fall. Age of the development and how established the vegetation is on the slopes also factor in.
We coordinate timing with your property manager or board ahead of the visit, whether that means working a retail center before opening hours or scheduling around a community event at a Highland Lakes neighborhood. We stage equipment to avoid blocking resident or tenant parking and keep the footprint tight, especially on lots where space around the pond is already limited by rock outcrops.
Thin soil over pink granite means less natural filtration before runoff reaches your pond, so forebays and filtration structures do more work and need cleaning more often than in deeper-soil parts of the Hill Country. Bare or rocky embankment slopes also erode faster in a hard rain, which is why slope and vegetation checks are part of every visit, not an add-on.
The main factors are how much sediment has accumulated, how overgrown the embankment and slopes have gotten, whether underground structures need confined-space cleaning, and how accessible the pond is on a given lot. A granite outcrop or a tight lakeside access road can add time compared to a flat, open site, and we account for that during the walk, not after.
Free, no-pressure estimate from a local crew. Call (737) 404-9343 or request a quote online.