Storm Drain

How Storm Drains Work

Storm drains are the backbone of urban water management. When rain hits pavement, rooftops, and other hard surfaces, it can’t soak into the ground like it would naturally. Instead, this runoff flows toward the lowest points, where storm drain inlets collect it.

The system starts with catch basins and grates you see along curbs and in parking lots. These feed into underground pipes that carry water through a network of increasingly larger conduits. Eventually, the water discharges into local waterways, retention ponds, or treatment facilities.

Unlike sanitary sewers that treat wastewater, most storm drains discharge directly into the environment. That’s why what goes down them matters so much for water quality.

Why Property Managers Should Care

Storm drains aren’t just city infrastructure you can ignore. If you manage commercial property, your parking lots, sidewalks, and buildings all connect to this system. When it doesn’t work properly, you’ll know fast.

Clogged storm drains cause flooding. Water backs up in parking lots, seeps into buildings, and creates liability issues. We’ve seen property managers face thousands in damage because a blocked inlet couldn’t handle a routine afternoon thunderstorm.

Beyond immediate flooding risks, storm drain connections make you responsible for what flows off your property. Oil from parking lots, fertilizer from landscaping, and debris from construction all end up in local waterways if your stormwater management isn’t properly maintained.

Common Problems to Watch For

Storm drain systems fail in predictable ways. Catch basins fill with leaves, trash, and sediment. Pipes crack or collapse from age, tree roots, or ground settling. Outlets get blocked by vegetation or debris.

In coastal areas like Bluffton and Charleston, salt corrosion accelerates pipe deterioration. Heavy clay soils common in the Lowcountry can shift and break connections. And our intense summer storms overwhelm systems designed for lighter rainfall.

You’ll notice problems during rain events. Water pooling where it shouldn’t, slow drainage after storms, or backup into buildings all signal storm drain issues that need immediate attention.

Compliance Requirements

South Carolina’s DHEC requires many commercial properties to maintain stormwater permits under the NPDES program. These permits specifically address storm drain discharge quality and quantity.

The Clean Water Act makes property owners responsible for preventing pollutants from entering storm drains. In practice, this means regular maintenance, proper materials handling, and documented inspection records.

Municipalities in our service area, from Savannah to Wilmington, have their own storm drain connection requirements. Many require backflow prevention, specific pipe materials, or regular compliance reporting.

When to Call a Professional

Don’t wait for major problems. If storm drains on your property drain slowly, back up during normal rain, or show obvious damage, get them inspected. Early storm drainage repairs cost far less than emergency flood cleanup.

Regular maintenance prevents most issues. Professional cleaning removes accumulated sediment before it causes blockages. Inspection catches pipe problems before they fail completely.

We own the equipment to handle everything from routine cleaning to complete system replacement. No subcontractors, no delays when weather threatens.