STORMWATER 101 What is STORMWATER RUNOFF? Stormwater Runoff= - - PowerPoint PPT Presentation

stormwater 101 what is stormwater runoff
SMART_READER_LITE
LIVE PREVIEW

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


slide-1
SLIDE 1

Lexington County Public Works Stormwater Division

STORMWATER 101

slide-2
SLIDE 2

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

slide-3
SLIDE 3

Stormwater: Water Quality

  • Stormwater accumulates

debris, chemicals, sediment or other pollutants from impervious areas

  • Adversely affect water

quality - discharge is untreated.

slide-4
SLIDE 4
slide-5
SLIDE 5

Common pollutants in stormwater runoff?

  • Oils
  • Grease
  • Fertilizer
  • Herbicides
  • Pesticides
  • Construction

Sediment

  • Wastewater
  • Detergents
  • Bacteria
  • Trash
  • Household

Hazardous Waste

  • Heavy Metals
slide-6
SLIDE 6

What goes in….. Comes out…..

slide-7
SLIDE 7

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
slide-8
SLIDE 8
  • 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

slide-9
SLIDE 9

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

slide-10
SLIDE 10

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

slide-11
SLIDE 11

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

slide-12
SLIDE 12

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

slide-13
SLIDE 13

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.