Wetland Delineation Training 2022

Actions Panel

Wetland Delineation Training 2022

Basic Wetland Delineation is a 40-hour training course that focuses on procedures used to delineate wetland boundaries.

When and where

Date and time


Bay Conference Center, EOS Center, SF State 3152 Paradise Dr Tiburon, CA 94920

Map and directions

How to get there

Refund Policy

Refunds up to 30 days before event
Eventbrite's fee is nonrefundable.

About this event

Basic Wetland Delineation is a 40-hour training course that focuses on procedures used to delineate wetland boundaries using the 1987 Corps Wetland Delineation Manual (Technical Report Y-87-1) and the Regional Supplement: Arid West Region (2008). The course will also discuss the Regional Supplement: Western Mountains, Valleys, and Coast Region (2010). The main objective of this training is to provide participants with a comprehensive and hands-on introduction to delineation of jurisdictional wetlands in California. Field demonstrations of proper procedures to identify wetland vegetation, hydric soils, and wetland hydrology indicators will be covered. Examples of challenging delineations will be discussed - atypical situations, problem areas, difficult wetland situations in the Arid West, and delineations for restoration projects. This course will consist of 50% lecture and 50% field excursions and laboratory exercises, emphasizing a hands-on approach. Participants will work closely with instructors in small groups to learn how to delineate extent of jurisdictional wetlands in the field. Various approaches to delineation of different wetland types and sizes will be discussed and demonstrated. After successful completion of this course, participants will receive certification that documents 40-hours of training in the use of the 1987 Corps of Engineers Wetlands Delineation Manual and two Regional Supplements: Arid West Region/Western Mountains, Valleys, and Coast Region.


To be able to complete a wetland delineation using the guidelines and methods used by the Corps of Engineers according to Section 404 of the Clean Water Act.


1. Understand and apply the delineation methods provided by the Corps

2. Understand the field observations necessary to recognize the three wetland indicators and complete a delineation

3. Develop an awareness of the issues that affect jurisdictional determinations and identify how these issues may affect the outcome of a delineation

Lastly, we will present examples from actual delineations and permitting scenarios to demonstrate successful techniques to get a verified delineation and discuss the “grey areas” of regulatory permitting.

—please bring questions-


Justin Semion has more than 20 years of experience navigating the complex world of wetland delineation and permitting in California. He focuses his work on guiding public and private clients to outcomes that benefit organizational goals and contribute to environmental sustainability. As Technical Services Director, he provides oversight and training over the delivery of all of WRA’s services. His technical expertise is rooted in wetland and riparian ecology, but has grown to include eelgrass and subtidal estuarine habitats, ecosystem functions and services evaluation, stream and riparian habitat assessments, rare and endangered species surveys, wildlife corridor evaluation, vegetation ecology, and fisheries ecology. He routinely manages projects involving the most challenging wetland issues, as well as CEQA and NEPA documentation, coastal permits, wetland and endangered species act permits. He has led and completed wetland delineations throughout California, including desert, coastal, montane and inland grassland environments. He is an expert in the delineation of disturbed and problematic sites.

Aaron Arthur has 15 years of experience performing wetland delineations as well as, vegetation & habitat mapping, rare plant surveys, botanical assessments, and vegetation change analysis. His project work is focused in vineyard development, single-family development, and mitigation/conservation banking. As Senior Biologist, he coordinates and leads teams of wetland delineators and botanical surveyors to perform in-field biological studies, culminating in reports submitted to the U.S. Army Corps of Engineers, California Department of Fish and Wildlife, and numerous local municipalities. His technical expertise is rooted in botanical resources and vegetation ecology, but through his professional work includes seasonal wetlands, tidal wetlands, riparian habitats, and freshwater marshes. He regularly manages projects involving multiple sensitive natural resources such as wetlands and streams, riparian habitats, rare plants, and special-status wildlife. He has led and completed wetland delineations throughout the Coast Ranges, the Great Valley, and Sierra Nevada Foothills.

1st three days will be primarily classroom and lab based in Tiburon.

4th and 5th days we will visit sites in Marin County to apply discussion topics to real situations as well as perform a delineation in teams.

Following SFSU Covid policy, proof of vaccination and daily health screening will be required to enter the EOS Center Campus and participate in the training. Current campus mask mandates and social distancing will be followed.

What are my transport/parking options getting to the training?

Public transportation does not easily access the Tiburon Center, carpooling is encouraged.

Personal vehicles are required for traveling to the sites. A signed liability waiver is required (waiver provided at first class meeting). You will receive an email registration confirmation that will include detailed agenda, relevant materials and necessary information.

 What do I need to bring?

Water bottle, sunscreen, hat, shoes that can get muddy, and lunch.

Binoculars, hand lens and/or camera are nice to have but not needed.

What is provided?

All course materials will be made available electronically.

 Where can I contact the organizer with any questions?

Coastal Training Program Coordinator-Aimee Good, wetlands@sfsu.edu, 415-819-2073

 What is the refund policy?

If you cancel prior to 10/1, registration fees will be refunded.  We cannot refund registration fees for cancellation after this date. However, please let us know if you cannot attend, so others have the opportunity to register.  If you pre-register but do not pay by 10/1, 5 p.m., we cannot guarantee your spot.  We reserve the right to cancel or postpone this event should we receive insufficient registration by 10/1. In that event we cancel the training we will remit a full refund.