STORMWATER 101 What is STORMWATER RUNOFF? Stormwater Runoff= - - PowerPoint PPT Presentation
STORMWATER 101 What is STORMWATER RUNOFF? Stormwater Runoff= - - PowerPoint PPT Presentation
Lexington County Public Works Stormwater Division STORMWATER 101 What is STORMWATER RUNOFF? Stormwater Runoff= rainwater, water from washing cars, overwatering lawns flows over land or impervious surfaces and does not percolate into the
What is STORMWATER RUNOFF?
Stormwater Runoff= rainwater, water from washing cars,
- verwatering lawns
flows over land or impervious surfaces and does not percolate into
the ground
Impervious surfaces
Parking Lots Streets Roofs
Stormwater: Water Quality
- Stormwater accumulates
debris, chemicals, sediment or other pollutants from impervious areas
- Adversely affect water
quality - discharge is untreated.
Common pollutants in stormwater runoff?
- Oils
- Grease
- Fertilizer
- Herbicides
- Pesticides
- Construction
Sediment
- Wastewater
- Detergents
- Bacteria
- Trash
- Household
Hazardous Waste
- Heavy Metals
What goes in….. Comes out…..
SCDHEC Test Sites Waters that do not meet state water quality standards are placed on DHEC’s Impaired Waters List. Impairments include:
- Fecal coliform
bacteria
- Dissolved oxygen
- Heavy metals
- Sediment
- Macroinvertebrates
- TMDLs are established
for waters on the impaired waters list TMDL Total Maximum Daily Load
- In Lexington
County 40% of
- ur
watersheds are impaired
- All green areas drain to
impacted test sites
Lexington County Initiatives
Stormwater Management
Ordinance
Water Quality/Quantity Water Quality Buffers Encourage Low Impact
Development
Education & Outreach
Mass Media Campaign Storm Drain Tagging Car Wash Fundraiser
Program
Trash the Poop Rainbarrel Workshops
Grants in Lexington County
Initiative to reduce bacteria levels 319 Hollow Creek and Twelve Mile Creek Watershed Projects 60% cost share for conservation plans 60% toward cost of septic repairs Cooking oil recycling program
Grants in Lexington County
Addresses causes of fecal coliform
impairment
Loading from permitted facilities
Sanitary Sewer Overflows
(SSOs)
Loading from land runoff
Agriculture Urban runoff
Loading from Non-Point Sources
Septic Tanks
Minimizing Stormwater Pollution for Homeowners
Landscape
Smart
Properly
Handle Household Hazardous Waste
Manage Yard
Waste and Debris
Properly
maintain your vehicle
Reduce Lawn
Space
Reduce
Stormwater
Questions?
Mission: Provide quality services to our citizens at a reasonable cost. Vision: Planned growth for our communities with abundant opportunities for all in a quality environment.