Superfund Site:

NORTHWEST PIPE & CASING/HALL PROCESS COMPANY
CLACKAMAS, OR

Superfund Site Profile

Site Contacts

Remedial Project Manager
Anne Christopher
(503) 326-6554

View all site contacts »

Site Location

Street Address:
SE MATHER RD AT SE INDUSTRIAL, CLACKAMAS, OR 97015

Background

The 53-acre Northwest Pipe & Casing/Hall Process Company Superfund site is located in an industrial park in Clackamas, Oregon. The company manufactured and coated pipes at the site from 1956 to 1985. Improper waste disposal contaminated the soil and groundwater with solvents, primers, coal tar, coal-tar residues, polychlorinated biphenyls (PCBs), and oils. The site was added to EPA’s National Priorities List 1992. Site cleanup included:

  • Demolition and removal of all site infrastructure
  • Removal and off-site disposal of contaminated soils
  • Placement of a 2-foot clean soil cap over contaminated areas of soil
  • Treatment of contaminated groundwater on site