What December 22, 2010 Taught Laguna Beach About Rain

Every December I think about the same date: December 22, 2010. If you lived anywhere near Laguna Beach that morning you remember it. A storm stalled over hillsides that were already soaked, Laguna Creek came up faster than anyone could react, and by dawn there was as much as four feet of water moving through downtown. The local paper called it a hundred-year rainfall. Around ninety homes and seventy businesses took damage, the cleanup bill ran past twelve million dollars, and a big piece of the trouble traced back to a storm drain at Beach Street that could not swallow what the canyon sent down.

Source The Laguna Beach Independent's coverage is still online and worth ten minutes of your winter: Laguna Besieged by 100-year Rainfall.

I bring this up every winter, not to be grim, but because that flood is the best free education a South Orange County homeowner will ever get. The lesson is simple: in hill towns, water problems are speed problems. Rain that would soak harmlessly into a flat Midwest yard arrives here all at once, from above, carrying whatever the slope was holding. Your house's defenses are small, boring things, and they only work if someone checks them before the storm, not during it.

The rainy-season checklist I run on my own house

This is the walk-through I do every year before the first serious storm, and the one we run for the hillside cottages we service in Laguna Beach. None of it needs a plumber. All of it needs a ladder, gloves, and an honest hour.

The part a plumber should look at

Two items are worth professional eyes on older hillside homes. First, yard and area drains that have never been jetted are usually part-full of sediment, and their real capacity is a fraction of their pipe size. Second, on lots where the city main sits above the house, check whether the sewer has a working backwater valve, because when streets flood, sewers surcharge, and the lowest fixture in the house becomes the neighborhood's relief point. That is as unpleasant as it sounds, and it is preventable with one valve.

I will add the honest caveat: no checklist stops a hundred-year storm. Downtown flooded in 2010 because a creek exceeded everything built to contain it, and no hose bib maintenance changes that. What the checklist changes is the ordinary storm, the two-inch night that turns into a flooded garage purely because a drain grate was wearing a leaf blanket. Those are the floods I get called to every winter, and nearly every one was an hour of October work away from not happening.

If you want the professional version of this walk-through, Aliso Viejo Plumbing Pros runs a 24-hour emergency plumber line all storm season, but the better call is the calm one in fall. Free estimates, upfront pricing, and a genuine preference for preventing the emergency over billing for it.