StormwaterStormwater

The Horry County Stormwater Department maintains drainage systems in Horry County. They also conduct mosquito spraying and issue stormwater permits.


Stormwater Nav Bar

To report a drainage or water quality problem, please call the hotline: 843-381-8000.

Residents' Corner

How To & Educational Videos

How to make a rain barrel

Rainwater stored in rain barrels has many uses. Some people find it mostly useful for watering their landscapes and gardens. If you’re harvesting rainwater with rain barrels to use for watering your landscaping, the rainwater can help to improve the health of your gardens, lawns, and trees. Rain is a naturally soft water and devoid of minerals, chlorine, fluoride, and other chemicals. For this reason, plants respond very well to rainwater. After all, it’s what plants in the wild thrive on! Also,  This extra water can have a significant impact on your water bill.


How to identify wetlands

Wetlands help regulate the quantity of water moving through a watershed by retaining water during wet periods and releasing it during dry periods. A watershed may have a few large wetlands, many smaller ones, or any combination that provides the necessary storage capacity. All wetlands, small or large, are essential to the proper functioning of a watershed. Your wetland, however small, is valuable both for its own intrinsic merits and for its contributions to your watershed.



How to install french drains for yard drainage

When houses are located in low-lying or flat areas, homeowners might need to install some type of lawn drainage to prevent flooding, standing water and damage to the home’s foundation. There are many types of lawn drainage systems, and many houses already have built-in systems. If the house doesn’t have a natural method of removing water from the yard, such as drainage slopes or drainage ditches, the homeowner might consider installing French drains, channel drains, or an underground drainage system.


How to install a rain garden

With the go green mantra spreading in every nook and corner of the world, it is the moment to bring a revolution even in our homes. Rain gardens are the excellent options for making a difference in water quality in our communities. Homeowners in many parts of the country are catching on to rain gardens – land-scaped areas planted to wild flowers and other native vegetation that soak up rain water, mainly from the roof of a house or other building. The rain garden fills with a few inches of water after a storm and the water slowly filters into the ground rather than running off to a storm drain



How to install pervious pavers for driveways and patios for drainage 

Using pervious pavers, pavement or material for patios, walkways, driveways and parking areas allows rainwater to soak into the ground before it becomes polluted stormwater runoff and flows into sewers and storm drains. Result: healthier urban waterways.


Introduction to Storm Water Management



LID Low Impact Development



Floating Wetlands/Islands



HOA Tips!

Volunteer Opportunities

Perhaps the first and biggest benefit people get from volunteering is the satisfaction of incorporating service into their lives and making a difference in their community and country. The intangible benefits alone—such as pride, satisfaction, and accomplishment—are worthwhile reasons to serve. In addition, when we share our time and talents we:

        • Solve problems
        • Strengthen communities
        • Improve lives
        • Connect to others
        • Transform our own lives

While it might be a challenge to coordinate everyone’s schedules, volunteering as a family has many worthwhile benefits. Children watch everything you do. By giving back to the community, you show them firsthand how volunteering makes a difference and how good it feels to help others and enact change. It’s also a valuable way for you to get to know organizations in the community and find resources and activities for your children and family. Here are a few to consider:


Storm Drain Marking
Coastal Waccamaw Stormwater Education Consortium
 
Adopt-a-Landing and Community Cleanups
Waccamaw Riverkeeper
 
Water Quality Monitoring
Waccamaw Watershed Academy at Coastal Carolina University
 
 Community Cleanups Keep Horry County Beautiful - Palmetto Pride  
Community Cleanups and Water Monitoring Murrells Inlet 2020
 
Stormwater Advisory Board
Horry County
 
Rainfall Monitoring
Community Collaborative Rain, Hail and Snow Network
 
Homeowner Practices, Tips, and Information

Drainage Maintenance

Development projects are designed with specific drainage patterns. Homeowners should maintain and not interfere with any planned drainage patterns. For a short write-up about drainage disputes in Horry County, click here.

Easements and Encroachments

Drainage easements are put in place to maintain drainage infrastructure, some of which may be underground. Drainage easements may be public or private and afford the easement holder the right to access and repair or maintain drainage infrastructure. The landowner maintains ownership of the property. The size of an easement is determined by the type of infrastructure within the easement and the type of equipment or materials that may be needed to fix a problem.
Encroachments into an easement may interfere with easement access and must be specifically permitted by the easement holder. If you would like to do some work in a easement assigned to the county as a public easement,  click here for an Horry County encroachment permit form.

Septic System Operation and Maintenance

Many homes in Horry County use a septic system for household wastewater disposal. In South Carolina, the SC Department of Health and Environmental Control regulates the installation and operation of septic systems.

To prevent pollution of nearby waterways and sewage backups, it is important to ensure that septic systems are operating properly. Most septic systems need to be pumped out every 2-5 years. For more information about proper installation, operation and maintenance of septic systems, please see the following links.

SC Department of Health and Environmental Control - Septic Tanks
US Environmental Protection Agency - Septic Systems

Nuisance Wildlife

Nuisance Wildlife Removal - SC DNR
Feral Hog Management - SC DNR
Beaver Management and Control - SC DNR
Beaver Control for Landowners - SC DNR
Canada Goose Information and Control Permit - SC DNR
Island Applesnail - Flyer Alert

Educational Resources

Stormwater Education in Northeastern South Carolina - Coastal Waccamaw Stormwater Education Consortium
Carolina Yards Program- Clemson Extension
Carolina Rain Garden Initiative - Clemson Extension
Stormwater Pond Management
Home and Garden Information Center - Clemson Extension

Low Impact Development Atlas for SC

Do's and Don'ts

  • Do keep ditches and swales clear of debris, yard waste, and trash
  • Do keep storm drains free of leaves and other blockages
  • Don't install sheds, fences, landscaping, or other structures in drainage easements, drainage swales or ditches, or around storm drains
  • Don't regrade yards in a way that blocks drainage swales or ditches
  • Don't place wire or other barriers over the ends of pipes as this may cause a debris trap
  • Don't dispose of paint, oil, grease, chemicals or other wastes in storm drains - it is not treated before it drains to streams, rivers or the ocean
  • Don't connect septic tanks, washing machines, or other plumbing to the drainage system, including ditches
  • Do report any drainage problem or illegal discharge to the Horry County Road and Drainage Hotline at 843-381-8000.
Encroachment Permit Form
The Horry County Storm Water Department reviews such requests individually and, upon approval, issues an encroachment permit for the placement of items within the County's outfall easement. Encroachment permits are issued at no charge by the Storm Water Department. If you have trouble displaying the form online, we will be happy to mail a copy OR you can stop by the Storm Water Department to pick one up.

Encroachment Permit Form

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