Protecting Public Health and the Environment.

CDA 5K Summer Series for Rathdrum Prairie Aquifer

The CDA 5K Summer Series Race #2 and #3 have been canceled due to degraded air quality conditions.

The annual CDA 5K Summer Series for Rathdrum Prairie Aquifer takes place on three consecutive Thursdays in August. This race is an all-ages community event focused on highlighting the significance of the Rathdrum Prairie Aquifer and why the water we drink and use every day is so important.


Starting location is at North Idaho College in Coeur d’Alene at the College Drive and River Avenue Intersection.

  • All ages and speeds are welcome
  • Chip-timed event by Nomadz Racing
  • Race bibs will be handed out at 5:15 p.m. on race day with race starting at 6 p.m.
  • Complimentary race t-shirt for first 100 participants to register for all three races
  • Ribbons for top 3 per age group
  • Overall winner prizes for top male and female of each race and top male and female combined race times for all three races
  • Aid station with water
  • Edible aquifers at the finish line

Entries are limited. The cost for each race is $5, cash or check only. Send your completed registration form by the Wednesday before each race to Alyssa Gersdorf at the DEQ Coeur d'Alene Regional Office, 2110 Ironwood Parkway, Coeur d'Alene, ID 83814. Race day registration will also be available until 5:15 p.m. on the day of the race.


Race Route

The out and back course starts at North Idaho College, heads north on the North Idaho Centennial Trail to the 1.5 mile turnaround point, then back on the trail to North Idaho College for the finish. This flat, fast, course allows runners and walkers to take in the sights of the Spokane River and to remind us of the pristine water we drink every day from the Rathdrum Prairie Aquifer.

5K Race Route


Parking will be available in the lots adjacent to the starting line.


Results will be posted at

Staff Contacts

Rathdrum Prairie Aquifer Hydrogeologist
Seth Oliver
DEQ Coeur d'Alene Regional Office
2110 Ironwood Parkway
Coeur d'Alene, ID 83814
(208) 666-4601

Race Sponsors

Related Pages

Rathdrum Prairie Aquifer