Storm Water
Sammy the Salamander As Greenville County grows, the demand on our limited water resources grow. Good water resource management starts with good storm water management. Managing storm water runoff as it comes off your roof or parking lot in a manner that protects the water quality of our streams and lakes is of vital importance to the sustainability of our community.


Greenville County Residents - Ways You Can Help
Storm Water runoff in Greenville County affects and is affected by everyone who lives here. To help protect the water quality of our streams and lakes you can...
  • Report non-emergency pollution problems to the Greenville County Soil and Water Division at 864.467.4610.
  • Never dump anything down storm drains since they drain to our streams and lakes.
  • Wash your car on the lawn instead of the driveway.
  • Do not use chemicals on your lawn before rain is expected.
  • Use organic lawn and garden fertilizers.
  • Make sure air conditioners are in good working order and are not leaking harmful chemicals.
  • Do not attempt to block the natural path of water or divert water onto another property.
  • Call the Soil and Water Division at 467.2755, ext. 103, and get involved in volunteer projects!

Why Worry About Storm Water?
The EPA now considers storm water pollution to be one of the most significant sources of contamination in our nation's waters. Storm water from developed areas erodes stream banks and smothers streambeds with sediment. Accumulated chemicals and bacteria flush off the land and into streams. Poor storm water management can destroy stream life, pollute drinking water, increase flooding and damage property.


Pollution Prevention - A Guide For The Construction Industry
Construction Guide Greenville County believes that reducing pollution is critical to maintaining the community's quality of life. One of the goals of our Stormwater Program is to ensure that precious resources such as clean water are never compromised.

We are partnering with the construction industry to help promote Best Management Practices (BMPs), or methods used on construction sites to keep pollution out of our storm drains and to protect receiving waters.

By providing you with the tools to create an efficient and environmentally safe construction site, we hope to make your job easier while keeping our streams clean.

Included in this brochure is valuable information on important BMPs, right-of-way permitting and Greenville’s inspection and enforcement program. We hope you find it useful.

Together, we have the ability to preserve and improve the quality of life in Greenville.

Brochure (PDF - 12.6MB)

Watershed Prioritization
Watersheds in Greenville County, also known as management units, have been prioritized with respect to their respective water quality problems. A method was developed to prioritize these management units based on the following:
  1. Impaired water bodies for which TMDLs have been established
  2. Waters identified on various EPA water quality lists (303(d), 304, 305(b), 314(a), 319(a), etc.)
  3. Water bodies showing known signs of impairment, with no TMDLs
  4. Waters draining urbanized areas
  5. Drinking water supply sources
  6. Highly Sensitive Waters
  7. Management units containing RCRA sites
  8. Management units containing NPDES permitted facilities and municipalities.

The watershed prioritization will be used to direct the County's efforts and funds in applying BMPs to address water quality problems.

  1. What is NPDES?

  2. What is the ultimate goal of NPDES permitting?

  3. What happens if the County does nothing or refuses to comply with the permit?

  1. What is the County doing about illegal dumping into the storm drains?

  2. Do catch basins and storm drains get cleaned out?

  3. Why doesn’t the County install filters or screens in front of catch basins?

  4. How do I report storm water problems (erosion, flooding, dumping) etc.?

  1. What is a catch basin?

  2. What is a watershed and how do I know which watershed I’m located in?

  3. What is a storm drain?

  4. What is a storm drain system?

  1. What is an NPDES permit?

  2. What is a point source?

  3. What is a water of the United States?

  4. What is a pollutant?

  5. Is it legal to have wastewater coming out of a pipe into my local receiving water (e.g., lake, stream, river, wetland)?

  6. What are Sanitary Sewer Overflows?

  7. What is an Illicit Discharge?

  8. Who is considered responsible for an Illicit Discharge?

  9. How to Report an Illicit Discharge:

  10. How are Illicit Discharges Classified?

HOA Information - Detention Ponds
Detention ponds are used to safeguard the quality of urban water runoff from roads, parking lots, residential neighborhoods, commercial areas, and industrial sites. Detention ponds help to reduce peak stormwater runoff rates by providing temporary storage during storm events.

For detention pond education and maintenance tips, click here .

Single Family Residential Erosion/Sediment Control Standards
Erosion/Sediment Control This booklet contains standard plans and procedures sufficient for typical residential building construction; it is not intended to address all circumstances. All projects that will clear, grade or otherwise disturb the site must provide erosion and sediment control measures to prevent the transport of sediment from the site to drainage facilities, streams, lakes, wetlands, adjacent properties, and streets. The primary objection is perimeter control with best management practices (BMP's) being utilized to prevent erosion and minimize sediment from leaving the site. Additionally, since streets are conduits for storm water, it is important to keep mud and sediment off the streets. The building permit holder is responsible for ensuring that adequate BMP's are in place and functioning until the construction project is brought to a close.

Booklet (PDF - 1.85MB)