Skip to main content

Olson Environmental is now Riparia Environmental – delivering the same trusted service with a fresh new look.

Solving Problems
Is In Our Nature

Contact Us

Part of an HOA?
Click here.

WHAT WE DO

We offer a full range of natural resource-based environmental services for residential, commercial, public works, and retail development. Choose a service badge below to learn more.

Deep community roots and expert service that’s always down-to-earth. For us, helping our clients just comes naturally.
An employee laughs with his crew on-site at a project.

WHO WE ARE

Riparia Environmental, formerly Olson Environmental and now a subsidiary of MacKay Sposito, has a longstanding history of serving the Pacific Northwest with trusted expertise in environmental compliance, ecological restoration, stormwater management, and landscape services. Our experienced team is dedicated to building resilient ecosystems through responsible solutions. By collaborating with MacKay Sposito’s engineers, scientists, surveyors, and construction managers, we integrate a broad range of disciplines to meet clients’ diverse needs.

Meet the team Join the team
 An environmental specialist kneeling down in the grasses of a wetland area, reading the results of a water quality test

DOING IT
THE RIGHT WAY.
NATURALLY.

WHAT SETS US APART

  • We have powerful support

    As a subsidiary of an award-winning consulting engineering firm, we offer an integrated approach with a proven track record for success throughout our region.

  • We know what’s at stake

    Our client-centered approach means we collaborate closely with you, tailoring services to your specific project needs and goals.

  • We know the landscape

    With 30 years of experience, we have the certifications, qualifications, and knowledge for all of your regulatory compliance needs.