STORMWATER STORMWATER ISSUES & SOLUTIONS ISSUES & SOLUTIONS St. Andrew Catholic School St. Andrew Catholic School Mrs. Dunne Mrs. Dunne ’ ’ s 8 s 8 th th Grade Science Class Grade Science Class September 21, 2006 September 21, 2006 Karen Fuss Education Coordinator of Coastal Waccamaw Stormwater Education Consortium
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
BlueBlue--green algae that green algae that fish will not eatfish will not eat
Found in turbid and Found in turbid and nutrient rich waternutrient rich water
Prefer high temperaturesPrefer high temperatures(>25(>25ooC or >77C or >77ooF) F)
Increasing occurrenceIncreasing occurrence
Some produce toxinsSome produce toxins
Can affect humans and dogsCan affect humans and dogsSkin Skin -- rash, hives, or blistersrash, hives, or blisters
Inhaling Inhaling -- sore throat, asthmasore throat, asthma--like like symptoms, or allergic reactionssymptoms, or allergic reactions
Swallowing water Swallowing water –– gastroenteritis, gastroenteritis, liver and kidney toxicity, numbnessliver and kidney toxicity, numbnessand tingling, dizzinessand tingling, dizziness
What is a Best Management What is a Best Management Practice (BMP)?Practice (BMP)?
SC DHEC says a BMP isSC DHEC says a BMP is……a management and conservation a management and conservation practice that has been demonstrated practice that has been demonstrated to effectively control movement of to effectively control movement of pollutants, prevent degradation of soil pollutants, prevent degradation of soil and water resources, and are and water resources, and are compatible with the land usecompatible with the land use
Strategy for coping with polluted runoffStrategy for coping with polluted runoffStrategy for coping with polluted runoff
Types of Stormwater Types of Stormwater BMPsBMPs
Infiltration (pervious surface materials and sand Infiltration (pervious surface materials and sand filters)filters)
Filtering (Filtering (bioretentionbioretention areas and rain gardens)areas and rain gardens)
Open Channel (grassed swales)Open Channel (grassed swales)
Stormwater WetlandsStormwater Wetlands
InIn--line Devices (trash traps line Devices (trash traps and pollutant and pollutant adsorbersadsorbers))
Stormwater PondsStormwater PondsStormwater Ponds
Photo: Susan LibesPhoto: Dan Hitchcock
Photo: Dan Hitchcock Photo: Dan Hitchcock
Functions of Functions of StormwaterStormwater PondsPondsTo hold and move waterTo hold and move water
Manage Manage stormwaterstormwater quantity,quantity, but NOT but NOT qualityquality
Remove sediment and solids, but NOT Remove sediment and solids, but NOT nutrientsnutrients