The Horry County Stormwater Department maintains drainage systems in Horry County. They also conduct mosquito spraying and issue stormwater permits.
To report a drainage or water quality problem, please call the hotline: 843-381-8000.
Horry County Code of Ordinances
Relevant Chapters: Revised Stormwater Management Ordinance - effective July 12, 2017 Stormwater Plan Review Fee Calculator - effective July 12, 2017 Chapter 17.7 - Stormwater Management Chapter 18 - Land Development Regulations Chapter 9 - Flood Damage Prevention and Control Chapter 10, Article II - Solid Waste Handling and Disposal Chapter 10, Article II - Exterior property maintenance requirements Chapter 16, Article IV - Obstruction of drainage structures, rights of way Chapter 4, Article III - Migratory Wild Fowl Chapter 13, Article VI - Mining Permits
Mining Activities in Horry County Revised Horry County Stormwater Management Design Manual - effective July 12, 2017 BMP Design Calculator | Water Quality Compliance Calculator | Calculator Instructions Horry County Stormwater Practices Permanent Maintenance Covenants Before July 12, 2017, Horry County Stormwater Management Design Manual Part 1 | Part 2 | Part 3 SC Department of Health and Environmental Control Stormwater BMP Handbook Low Impact Development in Coastal South Carolina: A Planning and Design Guide 208 Water Quality Plan for the Waccamaw Region North Carolina Stormwater BMP Manual North Carolina Low Impact Development Guidebook Georgia Stormwater Management Manual and Coastal Stormwater Supplement
Murrells Inlet Watershed Plan 2014 (scroll down to Water section)
Highways 9 and 57 Drainage Study 2016-2017 Phase 1 Report w/ Appendices - no figures or exhibits Figures Exhibits Part A Exhibits Part B Phase 2 Report - no figures, exhibits, appendices Figures - Part 1 | Part 2 | Part 3 Exhibits Appendix A - Existing Conditions Appendix A - Alternatives Appendices B & C Crystal Lake Alternative Improvements Study 2013 Narrative Report Appendix A (minus soils analysis) Tables Probable Construction Costs Lakewood-Pirateland Swash Drainage Study 2012 Phase II - Drainage Improvement Alternatives Study Narrative Report Figures 1-2 Figure 3 Figure 4 Figures 5-8 Tables Probable Construction Costs Exhibits Phase I - Drainage Study and Technical Model Report and Appendices A-C Appendix D Part 1 Appendix D Part 2 Concept Study of a Flood Reduction Diversion Canal - Waccamaw River - 2009 Report and Appendices A-C Caropines-Deerfield Drainage Studies 2008 Outfall Study: Part 1 | Part 2 | Part 3 | Part 4 | Part 5 2000 Outfall Study: Part 1 | Part 2 | Part 3 Raccoon Run Floodplain Study Horry County Stormwater Beach Outfall Study 2001
Phase 1
Report w/ Appendices - no figures or exhibits Figures Exhibits Part A Exhibits Part B
Phase 2 Report - no figures, exhibits, appendices Figures - Part 1 | Part 2 | Part 3 Exhibits Appendix A - Existing Conditions Appendix A - Alternatives Appendices B & C
Narrative Report Appendix A (minus soils analysis) Tables Probable Construction Costs
Phase II - Drainage Improvement Alternatives Study
Narrative Report Figures 1-2 Figure 3 Figure 4 Figures 5-8 Tables Probable Construction Costs Exhibits
Phase I - Drainage Study and Technical Model
Report and Appendices A-C Appendix D Part 1 Appendix D Part 2
2008 Outfall Study: Part 1 | Part 2 | Part 3 | Part 4 | Part 5 2000 Outfall Study: Part 1 | Part 2 | Part 3
Water Quality Study of Horry County Regional Stormwater Pond 2010 US Army Corps Singleton Swash Report 2009 Report | Appendix Part 1 | Part 2 | Part 3 Briarcliffe Acres Water Quality and Bacteria Study 2011 | Appendix A | Appendices B-F Withers Swash Pilot Study for Genetic Source Tracking of Fecal Indicator Bacteria USGS Report - Relation between Enterococcus concentrations and turbidity in fresh and saline recreational waters, coastal Horry County, South Carolina, 2003-04
Waccamaw Watershed Academy Volunteer Water Monitoring -includes Waccamaw River, Murrells Inlet, and Surfside Beach Coastal Carolina University's Environmental Quality Lab US Geological Survey Real-time Stream Monitoring in SC US Geological Survey Real-time Water Quality Data in SC SC Dept. of Health and Environmental Control Beach Monitoring Beach Monitoring Data Viewer - Coastal Carolina University SC Coastal Water Monitoring Network Visualization Portal - SC Sea Grant Groundwater Monitoring in Briarcliffe Acres - Coastal Carolina University SC DHEC Shellfish Sanitation Water Data at Hobcaw Barony - North Inlet-Winyah Bay National Estuarine Research Reserve WATERS GeoViewer - US EPA National Water Quality Council's Water Quality Portal
South Carolina Rainfall and Climatology Hurricane and Weather Predictions and Tracking NOAA Atlas 14 - Precipitation Frequency Data Server Southeast River Forecast Center Climate Monitoring Stations Community Collaborative Rain, Hail, and Snow Network - Volunteer Rain Monitoring Weather Data at Hobcaw Barony - North Inlet-Winyah Bay National Estuarine Research Reserve
Long Bay Ocean Observing System Long Bay Hypoxia Monitoring - Coastal Carolina University National Oceanic and Atmospheric Administration (NOAA) Tides Southeast Coastal Ocean Observing Regional Association (SECOORA) Data Portal Coastal Ocean Research and Monitoring System - UNC-Wilmington US Ocean Data NOAA's nowCOAST Web Mapping Portal NOAA Ocean Explorer Singleton Swash Beach Camera - Coastal Carolina University White Point Swash Beach Camera - Coastal Carolina University Hobcaw Barony Oyster Landing Camera - North Inlet-Winyah Bay National Estuarine Research Reserve
Horry County GIS Application Georgetown County GIS Columbus County, NC GIS Data Brunswick County, NC GIS Data SC DHEC GIS Data SC DNR GIS Data Resources South Carolina GIS US Geological Survey Landcover Products US Geological Survey National Map Viewer NOAA Digital Coast Geospatial Data Gateway - USDA/NRCS Community Resource Inventory Tool - Clemson University
SC Dept. of Health and Environmental Control Beach Monitoring SC Beach Guide - SC DHEC (includes beach access points) Grand Strand Beach Monitoring Data Viewer - Coastal Carolina University Check My Beach - Grand Strand’s Guide to Swim and Beach Safety
SC Watershed Atlas - SC DHEC WATERS GeoViewer - US EPA Long Bay Hypoxia Monitoring (fishing piers) - Coastal Carolina University Singleton Swash Beach Camera - Coastal Carolina University White Point Swash Beach Camera - Coastal Carolina University
Clean Water Act National Pollutant Discharge Elimination System (NPDES) NPDES Stormwater Stormwater Discharges from Municipal Sources
SC Department of Health and Environmental Control (DHEC) Bureau of Water Laws and Regulations Coastal Zone Laws and Regulations Stormwater Permitting Pollution Control Act Stormwater Management and Sediment Reduction Act (72-300) Water Pollution Control Permits (61-9)
Relevant Chapters: Chapter 17.7 - Stormwater Management Chapter 18 - Land Development Regulations Chapter 9 - Flood Damage Prevention and Control Chapter 10, Article II - Solid Waste Handling and Disposal Chapter 4, Article III - Migratory Wild Fowl Land Development Regulations
US EPA Stormwater Wetlands Constructed Stormwater Wetlands - Minnesota Infiltration Trench - Georgia Builder's Guide to LID - Nat'l Assoc. of Homebuilders Dollars and Sense - LID in Builder Magazine
Microbes and Urban Watersheds #1 - Center for Watershed Protection Microbes and Urban Watersheds #2 - Center for Watershed Protection
Canada Geese Beavers
Homeowner's Guide to Septic Tank Maintenance - US EPA Homeowner's Guide to Septic Tank Maintenance - Clemson
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