Landmark Environmental, Inc.
Licensed Professional: Desiree Oyola-Sloan
At a Glance
About Landmark Environmental, Inc.
Serving Littleton and surrounding areas in Colorado, Landmark Environmental, Inc. operates as a radon testing specialist. Holds dual NRPP and NRSB certifications, covering both measurement and mitigation. Specializes in radon measurement and radon testing. Dual national certification demonstrates commitment to professional standards.
Credentials & Verification
NRPP Radon Measurement Professional License
Licensed for professional radon testing and measurement
Issuing Body
National Radon Proficiency Program (NRPP)
License Type
Professional License
Status
Current through January 2028NRPP Multi-Family Mitigation License
Licensed for radon mitigation in multi-family buildings
Issuing Body
National Radon Proficiency Program (NRPP)
License Type
Professional License
Status
Current through January 2028Verified against NRSB, NRPP, RADON_SITE public databases · Last checked April 2026 · Report incorrect information
Contact & Location
Phone
(720) 675-2990
desiree.colon45@gmail.com
Website
www.landmarkenvironmental.com/
Location
7961 Shaffer Pkwy STE 4, Littleton, CO 80127, USA
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