Transcript Pollutant
Only Rain Down the Stormdrain Is this you? Don’t scoop the poop. Don’t clean up spills. Love to fertilize the lawn. How about this? Toss the butts. Leave the leaks. Oil spills & hazardous household chemicals Pet Waste Fertilizers & Pesticides Yard Debris Litter ….or this? So what? What is left on the ground… is picked up by rain… flows to the nearest stormdrain… out to the nearest creek… …then out to our streams, rivers and the ocean. Tyger Where you fish, swim and play The Dirt on Runoff Harms fish and wildlife Cost money Major source of water pollution in SC Difficult to regulate and control Affects drinking water sources Oil from a single automobile engine can produce an eight-acre oil slick. It all starts... A city block generates 9 times more runoff than a woodland area of the same size. Development Impacts on the Water Cycle 0-10% 50% 25% University of Minnesota Extension Service 35% 50% 20% Pavement Woes increase in the amount and rate of flood waters reduced replenishment of groundwater increase in stream temperatures source of contaminants Common Stormwater Pollutants and Their Sources Pollutant: Silt, sand, and clay particles and other debris Sources: construction sites, bare spots, wastewater from washing vehicles on driveways or streets, unprotected streambanks Pollutant: Nutrients Sources: overused or spilled fertilizers, pet waste, grass clippings and leaves left on streets or sidewalks, leaves burned in ditches Pollutants: Disease organisms, nutrients Sources: Animal waste and garbage Pollutants: Vehicle fluids Sources: car, truck, and watercraft leaks and spills of oil, gasoline, and antifreeze Pollutants: Pesticides Sources: over-applied or applied before a rainstorm, spills and leaks Pollutants: Metals (zinc, copper, lead, cadmium) Sources: cars and trucks (brake and tire wear, exhaust); galvanized metal gutters and downspouts Pollutants: Toxic Compounds Sources: Paints, cleaners, thinners, hazardous household products poured down stormdrains Reducing Your Contribution to Runoff Pollution Managing Fertilizers Test soil Apply only what’s needed and when Keep fertilizers off driveways and streets and away from waterways (30 – 50 ft) Go organic or use slow release Homeowners use up to 10 times more pesticides and fertilizers than farmers. Pesky Pests Identify the problem / pest Never “spray first and ask questions later” Use less toxic pest controls Practice Integrated Pest Management Yard Waste and Debris COMPOST! Keep debris off the street and out of the creek Selecting a Lawn Care Company Check for certified or trained technicians Avoid company selling “blanket” applications of fertilizer and pesticides. Ask if they have conducted soil tests and a pest analysis to determine appropriate applications. more… Ask what practices they follow to minimize use of fertilizers and pesticides – Slow release fertilizers, IPM, housekeeping Know to leave a buffer zone between fertilized area and waterbody Your opportunity to educate Impervious Surfaces Materials like cement, asphalt, roofing, and compacted soil prevent percolation of runoff into the ground. UM Extension Service Use porous paving materials in driveways. Photo: SCNEMO ... and walkway construction. reduce the lawn Trees, shrubs and groundcover absorb 14 times more rainwater than turf. Direct roof drains away from foundations and paved surfaces. Rain Barrels…free water! Plants that tolerate wet and dry conditions Rain Gardens Low moisture plants Fluctuating water levels Prince George’s Co. Dept. of Environmental Resources Trees--Nature’s Sponges filter pollutants slow runoff control erosion save money in stormwater costs In Austin, TX tree canopy reduced stormwater flows by up to 28%, saving the city $122 million. Backyard Buffers • • • • • filter pollutants slow runoff control erosion provide habitat for wildlife increase property values Photo: SC NEMO Your Vehicle… recycle oil wash the car on the grass When your washing your car in the driveway, remember your not just washing your car in the driveway. fix leaks clean up spills If you think picking up dog poop is unpleasant try drinking it. Next time the rain falls… out of sight, out of mind not really It’s simple… What’s left on the ground or pavement ends up in the creeks, marshes and rivers. Reduce pollution sources Let rain runoff soak into the ground Your actions are the solution to runoff pollution! Clean water is everyone’s responsibility.