beach contamination source identification techniques: physical characteristics of the beach and...
TRANSCRIPT
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Beach Contamination Source Identification Techniques: Physical Characteristics of the Beach
and Surrounding Watershed
Door County Soil and Water
Conservation Department
Vinni Chomeau
Grant Funding Provided by:
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Soil and Water Conservation Department Source Identification
28 Beaches Physical Characteristics
Watershed mapping and land use Impervious surface percentages Proximity to parking lots, storm
water outlets and other facilities Wind and wave action Current direction Near shore morphology Substrate type Rain data Avian use/avian waste
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Substrate
Slope
Distance to Sample
BEACH MORPHOLOGY
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Near Shore Morphology & Substrate Type
Ephraim Beach School House Beach
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BEACH WATERSHED MAPPING
Watershed During the Swim Season
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Water Modeling Software
• Establishes flow channels based on contour lines and quantity of flow channels up gradient.
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Watershed Mapping
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Baileys Harbor Watershed
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Fish Creek Beach Watershed
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Fish Creek Beach Watershed
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Fish Creek Beach Bay Land Use – Impervious Surfaces
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Fish Creek Land Coverage Percentages - Runoff Potential
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Fish Creek Beach Wastewater Treatment Region
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Fish Creek Beach SubstratePlant & Animal Waste Accumulations
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Ephraim Beach Bay Land Use
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Ephraim Beach Land Use
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STORMWATER CONVEYANCE SYSTEMS
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Stormwater Conveyance Systems
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Fish Creek Beach Stormwater Conveyance System
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Fish Creek Beach Impervious Surfaces
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Ephraim Beach Stormwater Conveyance
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Quantification of Physical Characteristics
• Used to create a correlation matrix between physical features and E. coli counts to determine how physical features influence E. coli levels.
•Provide maps that identify location of potential E. coli sources.•Maps can be used to assist in determining future sample sites.
Qualitative Value of Physical Characteristics