Our Staff
Meet the dedicated team behind Walla Walla County Conservation District—each staff member has a unique role in advancing our conservation mission.


Annie Byerley
District Manager
tel: 509-956-3764
Annie is a graduate of the AgForestry Leadership program and has a Bachelor’s degree in Environmental Geology. She has extensive background in agriculture from years of working on her family farm. Annie is a valuable asset on many riparian and farm plan projects. Come see her in the office to talk about potential projects and get technical advice!

Nells Hannah
VSP Coordinator/Conservation Scientist
tel: 509-956-3747
Nells is our Voluntary Stewardship Program (VSP) Coordinator. He is a former Washington Conservation Corps supervisor and has worked on restoration projects throughout the state. In his free time, you can find him taking nature photos and playing with his sister’s dog.

Joanna Cowles-Cleveland
Riparian Coordinator
tel: 509-956-3760
You may find Joanna knee deep in streams but that’s ok. She monitors water quality in a few of our local streams. As our biologist, she has taken on the Conservation Reserve Enhancement Program (CREP). Joanna oversees and manages a variety of our riparian restoration projects.

Alison Crowley
Project Manager and Outreach Educator
tel: 509-956-3762
Alison is our Mill Creek, K-12 Education, and Community Engagement Program Manager. Alison’s background in Natural Resource Management plus Outreach and Education make her a great choice to lead the Mill Creek Restoration Projects. Alison received her Bachelor of Environmental Studies from Michigan State University and her Masters in Outdoor Education from the University of Idaho.

Jenny Freer
Fiscal Specialist
tel: 509-956-3753
Jenny is our Fiscal Specialist and manages our grants and vouchering. Jenny is a recent graduate of Walla Walla Community College’s Bachelors program for Business Management.

Jake Mantela
Conservation Scientist
tel: 509-956-3758
Jake Mantela is our newest Conservation Scientist at WWCCD. Jake has a broad background in botany, data collection, and geospatial disciplines. He studied Environmental Biology/Plant Biology at Michigan State University and then moved west after graduating. Jake looks forward to making a positive, lasting impact in Walla Walla County.
