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University of Idaho

Physical Address:
1031 N. Academic Way,
Suite 242
Coeur d'Alene, ID 83814

Phone: 208-667-2588

Fax: 208-664-1272



U of I CDA Directory Directions

Our Gem

The Our Gem Coeur d’Alene Lake Collaborative is a team of committed and passionate professionals working to preserve lake health and protect water quality by promoting community awareness of local water resources through education, outreach and stewardship.

Our Gem includes local experts from the University of Idaho Community Water Resource Center, Coeur d’Alene Tribe Lake Management Department, Idaho Department of Environmental Quality, Kootenai Environmental Alliance, Kootenai County, Coeur d’Alene Regional Chamber and CDA 2030. 

Study on water quality in Coeur d'Alene Lake 

The National Academy of Science is currently studying the future of water quality in Coeur d'Alene Lake. The Idaho Department of Environmental Quality and Kootenai County requested the assessment to address areas of concern. The study is endorsed by the Coeur d’Alene Tribe and the Our Gem Collaborative. It is expected to be complete by summer 2022. Visit the National Academies page to learn more.

Our Gem Speaker Series

The Our Gem Collaborative Speaker Series features water and development experts from around the state. Any upcoming sessions will be posted here.

Lake Science 101, Sept. 15, 2020

University of Idaho Professor Frank Wilhelm presents Lake Science 101.

Preserving Water Quality, Sept. 17, 2020

David Callahan discusses Kootenai County’s role in preserving water quality.

CDA Lake Management, Sept. 22, 2020

Jamie Brunner, DEQ, and Rebecca Stevens, CDA Tribe, talk about CDA lake management.

Aquatic Invasive Species, Sept. 24, 2020

Kim Holzer with the Idaho Dept. of Agriculture presents on aquatic invasive species.

Stormwater Outfall Reduction, Jan. 26, 2021

City of Coeur d’Alene Engineer Chris Bosley presents on outfall reduction plans.

Cultural Resource Mitigation, Jan. 28, 2021

Peter Mahoney shares cultural preservation efforts from the CDA Tribe.

Atlas Waterfront Project, Feb. 2, 2021

Hilary Anderson, City of Coeur d’Alene, and Phil Boyd, Welch-Comer Engineers, discuss the development.

Gray’s Meadow Restoration, Feb. 4, 2021

Idaho Fish and Game’s David Leptich talks about natural resource restoration at Gray’s Meadow.

Native Willow Nursery, June 1, 2021

Restoration Biologist Tom Biladeau discusses native willow restoration on CDA lands.

Irrigation Efficiency, June 3, 2021

BiJay Adams, Liberty Lake Water and Sewer District, covers landscape irrigation efficiency.

Wolf Lodge Creek Watershed Restoration, June 8, 2021

Idaho DEQ’s Kristen Lowell talks about watershed restoration at Wolf Lodge Creek.

Youth Water Summit Highlights, June 10, 2021

Check out award-winning water research projects completed by North Idaho high school students.


The Coeur d’Alene LakeASyst is a tool for local landowners. LakeASyst for the Coeur d’Alene Basin was developed by the Coeur d’Alene Tribe and Idaho Department of Environmental Quality Lake Management Teams. The manual consists of 11 sections, each addressing a specific topic related to nonpoint sources of pollution. Topics include lawn and garden management, new construction, and household wastewater treatment. Each section contains information related to the topic, a self-assessment, and a resource directory to connect you with more information and professionals that can help. The manual provides a simple reference on ways of minimizing impacts of a variety of activities.


A landowner’s guide to protecting water quality.

Read more (PDF)


The Our Gem Collaborative team regularly contributes data-driven articles to the Coeur d’Alene Press to promote dialogue and community action in caring for Coeur d’Alene Lake.

The Our Gem Collaborative

Learn about the effort to propel the conversation regarding the health and future of Coeur d’Alene Lake

Read More about the Collaborative

Great Lake Debate

Federal, state and tribal leaders share shoreline concerns along Coeur d’Alene Lake.

Read the Great Lake Debate

Stormwater Pollution Prevention

Learn about stormwater’s impact and your part in minimizing the damage.

Read about Stormwater Pollution Prevention

Lawn and Garden Care

Explore strategies for home lawn and garden care that protects our waterways.

Read about Lawn and Garden Care

Boating Best Practices

Prevent pollution and minimize damage while recreating in the Coeur d’Alene basin.

Read about Boating Best Practices

Construction Ahead

Help keep the lake clear in times of growth and change.

Read Construction Ahead

Heavy Metals In Our Watershed

Keeping CDA lake-bottom concerns in check.

Read about Heavy Metals

Clean Drinking Water Is A Community Responsibility

Ensure your home’s water is safe for your family.

Read about Drinking Water

Aquatic Invasive Species

Understand the threat and how to make a difference.

Learn about Aquatic Invasive Species

Bay Watchers

Lake ambassadors provide data and education in support of lake health.

Learn about Bay Watchers

Roads and Driveways

Avoid water pollution with properly constructed and maintained roads.

Learn about erosion concerns

Septic System Care

Protect our watershed starting with system care at home.

Read about septic tanks

Winterizing Boats

Follow this checklist for the sake of your boat and our lakes.

Read about winterizing boats

Advancing Wastewater Treatment

Look back on 115 years of wastewater management in Coeur d’Alene.

Read the history

“Leaf” It Out of the Lake

Find out how fall foliage can damage our aquatic ecosystems.

Read about leaf management

From Snow to Stormwater

Discover how snow maintenance impacts local water resources.

Read about snow management

Local Gem Awards

Nominate a local difference maker for the Gem award.

Read about the honor

Scientific Review of Water Quality

See what led to the National Academy of Science review

Learn about the NAS study

Managing Water Levels

Learn how Avista operations impact CDA Lake and the Spokane River

Read about the dams

Bottom Sediment Risk

Examine the delicate balance of protecting the lake

Learn about benthic flux

Snow Science at Lookout

See the confluence project from the students’ perspective.

Read about the experience

Clean Water Act Impact

Area Water Educator shares successes and challenges with the act

Read more on the law

University of Idaho

Physical Address:
1031 N. Academic Way,
Suite 242
Coeur d'Alene, ID 83814

Phone: 208-667-2588

Fax: 208-664-1272



U of I CDA Directory Directions