Environmental Services
(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



RNSA has managed large multi-year groundwater remediation projects, private and corporate tank closures and multiple construction project permits. This experience is summarized in three categories:

Environmental Management

  • Municipal hydrocarbon groundwater cleanup over-site
  • 14-years of groundwater solvent remediation monitoring
  • Characterization and monitoring of Union Carbide site
  • Installation of remediation wells groundwater cleanup
  • Installation of state-of-art multi-port monitoring wells

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Soil Vapor and Tanks

  • 34 closures based on soil vapor sampling
  • Vapor sampling based on EPA methods
  • National and local oil company tank site closures
  • American Petroleum Institute research in vapor venting

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Construction Industry

  • 1200-C NPDES permits
  • 1200-Z NPDES permits
  • Health and safety plan development
  • Environmental monitoring on construction sites
  • HUD NEPA Environmental Assessments

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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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