1. 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:

2. 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

3. Substrate Slope Distance to Sample BEACH MORPHOLOGY

4. Near Shore Morphology & Substrate Type Ephraim Beach School House Beach

6. BEACH WATERSHED MAPPING Watershed During the Swim Season

7. Water Modeling Software Establishes flow channels based on contour lines and quantity of flow channels up gradient.

11. Watershed Mapping

12. Baileys Harbor Watershed

13. Fish Creek Beach Watershed

15. Fish Creek Beach Bay Land Use – Impervious Surfaces

16. Fish Creek Land Coverage Percentages - Runoff Potential

17. Fish Creek Beach Wastewater Treatment Region

18. Fish Creek Beach Substrate Plant & Animal Waste Accumulations

20. Ephraim Beach Bay Land Use

21. Ephraim Beach Land Use

22. STORMWATER CONVEYANCE SYSTEMS

23. Stormwater Conveyance Systems

24. Fish Creek Beach Stormwater Conveyance System

25. Fish Creek Beach Impervious Surfaces

26. Ephraim Beach Stormwater Conveyance

27. 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