top of page



Historical Environmental Information Retrieval System

HEIRS    is an address-indexed proprietary database that was developed, and is maintained, exclusively by OMNICON Environmental Management.


The database was created in the late 1980s, when we realized that all of the historical occupancy information that we were obtaining for individual Phase 1 Environmental Site Assessments would likely be useful in the future for assessments conducted at nearby sites.


The HEIRS    database contains historical occupancy information derived from a wide variety of sources, including historical:


  • city directories

  • US Post Office rural delivery route instructions

  • fire insurance maps

  • real estate listing maps

  • Oregon Department of Transportation maps

  • county tax roll information

  • aerial photographs

  • ground-level photographs

  • newspaper articles

  • topographical maps

  • city and county development, building permit, and underground tank records

The database is designed to include primarily sites of potential environmental contamination interest (i.e., commercial and industrial occupancies), but also includes sites that serve as historical occupancy markers (which are particularly useful in areas where street addressing has only recently been utilized).

The areas in Oregon that are covered by the HEIRS    database include:

  • Eugene (all)

  • Springfield (all)

  • Veneta (most)

  • Cottage Grove (selected areas)

  • Junction City (primarily downtown area, and areas along and adjacent to Highway 99)

  • Florence (selected areas, primarily along Highways 101 and 126)

  • Oakridge (very limited areas)

  • Creswell (very limited areas)

  • rural Lane County (most areas along primary state highways)

  • Roseburg (selected areas)

  • Medford (selected areas)

  • Corvallis (very limited areas)

  • Albany (selected areas)

  • Harrisburg (selected areas)

  • Coquille (very limited areas)

  • rural Linn and Benton Counties (selected areas)

  • Salem (very limited areas)

  • Portland (very limited areas)

The HEIRS    database is used as a tool for rapidly screening properties for potential environmental impacts, and can become the foundation for developing occupancy histories when conducting transaction screens, environmental reviews, and environmental assessments.

Information in the HEIRS    database can be accessed by our clients for a nominal fee.








 746 Alvadore Street


  DATE                                                               OCCUPANT


  2015                         woodworking shop - SE corner of bldg
  2015, 2013               Cave Man Brewing (micro-brewery, craft beer; NE corner

                                      of bldg)
  2015, 2013, 2012     Morrie's Auto Repair (north and NW portion

                                      of building)
  2006                         Willamette Kitchen & Bath (stone & tile countertop

                                      fabrication: NE corner of bldg)
  2003, 2001               Ted's Body Works (autobody repair & painting)

                                      (SW part of bldg)
  98                             Pacific Coast Crushers
  93                             Glass Crushers Inc; Pacific Coast Crushers (manufacture

                                      glass crushing machinery)
  91                             Warehouse Service Center
  87                             Discount Tire Company (Pacific Industrial Supply also

                                       in 1987; see # 1904 East 7th Avenue)
  85, 82                       no listings for address
  78, 76, 75                 Warehouse Service Center; Arnie's Tire Warehouse
  73                             (April 1973, City Chronicle) Warehouse Service Center,

                                      want ad for person qualified in front end alignment,

                                      shock absorber installation, and tire mounting
  76, 71                       IR Equipment Corporation / Ingersoll-Rand Company
  67, 63, 55, 49           Loggers & Contractors Machine Company

                                      (heavy machinery manufacturing, and sales & service)

  49                             County records: on-site building constructed on

                                      previously undeveloped land

                           {City records show a 9,000 "crude oil" UST, and a 800 gallon

                             gasoline UST installed 12/2/49; gasoline tank reportedly

                             abandoned as of  9/87, but “crude oil” tank still in use at

                             that time.  City records show a 1,000 gallon gasoline UST,

                             and a 10,000 gallon fuel oil UST removed  4/19/91}

I'm a paragraph. Click here to add your own text and edit me. It's easy.

bottom of page