Delineation of Ordinary High Water Mark & Ordinary High Water Line
Course ID: HYD-405 ( 2 days )
December 9 - 10, 2009, 8:30 a.m. - 5:00 p.m.
EOS Alliance (NWETC) - Headquarters
650 South Orcas Street, Suite 220
Seattle, WA 98108
PHONE: (206) 762-1976 | FAX: (206) 762-1979

Instructor: Alan Wald; Applied Hydrology NW, Hydrogeologist
Sarah Cooke; Cooke Scientific, Wetland Ecologist, Botanist

Steve Boessow; WA Dept of Fish & Wildlife, field instructor


Register Online | Directions | Accommodations | Course Catalog | Course Brochure (pdf)

Description: This course is intended for River and Wetland Scientists, Biologists, Hydrologists, Surveyors, Engineering Consultants, Permit Reviewers, and anyone else who makes Ordinary High Water Mark (OHWM) and Ordinary High Water Line (OHWL) delineations on aquatic shorelines. The OHWM is a cornerstone of public trust responsibility and essential to protection of natural resources on rivers, lakes, and marine shorelines. The OHWM is an ecological boundary delineated by scientific methods using field criteria (water, soils, and vegetation) set forth in federal and state statutes.

The class is designed to educate attendees on comparative OHWM/OHWL delineation techniques using standard indicators. Discussion will include new developments and emerging methods for using online hydrologic data, StreamStats, and on-the-ground soil survey techniques. It includes documenting and defending current delineations. This will be a two-day course with one day of lecture and discussion followed by a day of hands on delineation exercises in the field.
We will spend time doing delineation exercises on both a large lake and a marine shoreline.

Course Topics:

Introduction

- What is ordinary high water?
- How ordinary is ordinary?
- How high do you look?
- Why is it important to get it right?
- Essential elements of teamwork

Streams and Rivers

- From headwaters to estuaries
- Natural systems, modified systems

Flow Factors
- Hydrologic regimes
- High flows
- Regulated rivers

Soil Factors

- Gravel bars and islands
- Islands
- Stream banks and ATTZ
- Soil characteristics
- Floodplain deposits
- Scour lines

Vegetation Factors

- Indicator species
(freshwater and estuarine)
- Riparian communities
- Floodplain communities
- Outliers

Associated Wetlands

Overview of field delineation methodology
- Data to collect before you go into the field
- Field protocols, field notes
Documenting your determination
- Useful information available on the web
- Format for Reports

Additional Considerations
- Introduction to large lakes and marine shorelines; tidal factors, FETCH, bluff geology
- Lakes and wetlands: adjusting for long time steps
- Comparison of OHWM with "bank full width"
- Geographic considerations
- Team approach: nature doesn't fit in a box

Field Trip

- Tour of fields sites
- field delineation exercises

About the Instructors:
Alan Wald
has 30 years experience in applied hydrology. He has a Master's Degree in Forest Hydrology from the University of Washington and a Bachelor's Degree in Renewable Natural Resources from the University of California, Davis. He is a professional hydrogeologist licensed in Washington.


Sarah Spear Cooke has over 23 years of experience in the field of Wetland Science in Washington State. She has a PhD in Forestry, Geobotany, and Soils and a Masters Degree in Botanical Taxonomy from the University of Washington and a Bachelors Degree in Geology and Botany from McGill University. She is a professional Wetland Scientist and Fellow with the Society of Wetland Scientists.

Steve Boessow is the Water Rights Biologist with the Habitat Program of the Washington Department of Fish and Wildlife. Steve earned his Bachelor’s Degree in Environmental Science from The Evergreen State College in 1987 and has over 20 years experience in field reviews and studies on instream flows, habitat, fish age & abundance, and stream surveys.

Prerequisites: Educational experience in one of the following: hydrology and streamflow measurements, general soil characteristics and classifications, or wetlands and riparian vegetation identification is very useful but is not required for this class. Field experience in stream surveys, measuring distances on the ground, and recording observations is also helpful but is not required. Office experience in preparing records of field work, scale drawings, draft technical reports with references, and final reports and illustrations would be helpful, but is not required. The ability to work with others in collaborative field studies and provide scientific materials for interdisciplinary reporting is required.

Intended Audience: This course is intended for professionals seeking an improved understanding of Ordinary High Water Mark and Ordinary High Water Line delineations.

Course Materials: Attendees will receive a binder containing workshop proceedings and reference material.

Continuing Education Units:

What to Bring: Please bring a pen or pencil, notepad or laptop and a water bottle (to reduce waste). We will be inside on the first day of class. There are restaurants within walking distance for lunch. The second day involves an outdoor field trip. For the field day, please dress for the December weather and bring rubber boots or work boots, pen/pencil, warm rain gear, water bottle, and anything else you need to be comfortable in the field. Lunch will be provided for the field day.

Registration: $545 ($445 reduced rates*)
You may register via the link below or by calling the Northwest Environmental Training Center at 206-762-1976. (*reduced tuition is available for Native American tribes; government employees; nonprofits; students; and NAEP, NEBC, NWAEP members).

Cancellation Policy: Registration fees are fully refundable up to 30 days prior to the event and 50 percent refundable (or 100% credit) thereafter up to 5 business days prior to the event. No refunds are issued for cancellations occurring less than 5 business days before the start day. Course registration fees and cancellation policy are subject to change without notice.

Disability Accommodations: To request disability accommodations, please contact us at info@nwetc.org or (206) 762-1976 at least 30 days prior to the event.

Register Online | Directions | Accommodations | Course Catalog | Course Brochure (pdf)

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Northwest Environmental Training Center
A 501(c)(3) non-profit program of EOS Alliance
650 S. Orcas Street, Suite 220, Seattle, Washington 98108
Phone: (206)762-1976, Fax: (206)762-1979

www.nwetc.org