Christian Nilsen, PE
Christian Nilsen is a Principal Engineer based in Washington with 20 years of experience focused on stormwater management, water quality, and data science.
Mackenzie Cremeans and Christian Nilsen to Contribute to 2026 Toxic Torts and Environmental Law Seminar
Mackenzie Cremeans, PhD, PG, will present and Christian Nilsen, PE, PMP, will serve on a panel at the Defense Research Institute (DRI) 2026 Toxic Torts Environmental Law Seminar from April 15 through 17, 2026, in Miami, Florida.
Geosyntec Practitioners Contribute to Washington Stormwater Conference
Marc Leisenring, Amy Smith, Ariel Mosbrucker, Christian Nilsen, Adam Tycaster, and Tom Wanzek will speak and moderate at the Managing Stormwater in Washington Conference.
Christian Nilsen Speaks at Google’s Geo for Good Summit
Christian Nilsen, PE, PMP, presented during the session, “Earth Engine and BigQuery Integrations,” at Google’s Geo for Good Summit on August 27, 2025, in New York, New York.
Promotion of New Principals and Senior Principals for 2025
Geosyntec announces our 2025 class of Principals and Senior Principals. These individuals exemplify the values that define the firm: collaboration, inclusion, innovation, safety, and passion for excellence.
Using Passive Sampling to Gather Active Information
In the world of environmental remediation, passive sampling has been a trusted method for detecting dissolved contaminants in water that threaten aquatic life. Will that be the case in stormwater management as new contaminants emerge?
Geosyntec to Speak at MuniCon 2025
Geosyntec practitioners will make major contributions at the Washington State Municipal Stormwater Conference (MuniCon) on May 20 and 21, 2025, in Vancouver, Washington.
The Nature Conservancy Launches New Stormwater Heatmap
The five-year collaboration between The Nature Conservancy's Emily Howe (TNC) and Geosyntec's Christian Nilsen helps jurisdictions achieve more in a shorter timeframe to meet permit requirements, recover ecosystems, and adapt to climate change.
Christian Nilsen to Present at the 2021 Managing Stormwater in Washington Conference
Christian Nilsen, PE (Washington) will present "Developing A Stormwater Management Action Plan" at the Managing Stormwater in Washington Virtual Conference on May 5, 2021.
Bob Anderson, Christian Nilsen and Myles Gray to Present at Managing Stormwater at Managing Stormwater in Washington
Robert Anderson, LHG, CWRE (Washington), Christian Nilsen, PE (Washington), and Myles Gray (Oregon) will be presenting at the Managing Stormwater in Washington at the Greater Tacoma Convention Center in Tacoma, Washington on March 11, 2020.
