Soil Vapor and Tanks
(503) 241-5444

Roger N Smith Associates, Inc. (RNSA) Specializing in groundwater and environmental professional services in the Portland, Oregon area.

Roger N. Smith Associates, Inc. (RNSA)
2424 SE Caruthers St
Portland, OR 97214

Office: (503) 241-5444
Fax: (503) 241-1441


Soil Vapor & Tanks

Water Rights and Water Quality


RNSA has resolved many issues for clients related to underground storage tanks, including the following:

  • Risk- Based Closures (RBCA’s) requiring:
    • Groundwater Testing
    • Soil Vapor Testing
    • Monitoring Well Registration
    • Risk-Based Report Writing
    • Professional Certification

Environmental Tank TestingRNSA staff stays current with technical and regulatory changes by attending professional conferences, taking training classes and submitting technical papers for publication (see resumes for publications).

Vapor Testing

Vapor TestingRNSA has the equipment and expertise to collect vapor samples needed where elevated concentrations of pollutants are inaccessible. More than 34 DEQ closures have obtained in the past 6 years.

  • Certificates and Licenses
    • Registered Geologist (OR, WA & ID)
    • Individual tank supervisor license (OR)
    • Certified and bonded monitoring well constructor license (OR)
    • Certified HazMat 40-hr supervisor


Roger N Smith Associates, Inc. (RNSA)
2424 SE Caruthers St, Portland, OR 97214
Office: (503) 241-5444 Fax: (503) 241-1441

Specializing in Groundwater & Environmental
Professional Services in Portland, Oregon

Licensed - Bonded - Insured

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