|Click to View Photo||Picture Date||Caption||Size|
|View Photo||04/04/2006||FIGURE 1: Site location depicted on a 1:100,000 USGS topo map||881 Kb|
|View Photo||04/04/2006||FIGURE 2: Site location depicted on an ODOT highway map||393 Kb|
|View Photo||04/04/2006||FIGURE 3: Site location depicted on a 2003 City of Portland aerial photograph||700 Kb|
|View Photo||04/04/2006||FIGURE 4: Prominent site feature: Albers Mill Building||746 Kb|
|View Photo||04/04/2006||FIGURE 5: Site diagram depicting locations of soil borings and test pits from July and August 1988||213 Kb|
|View Photo||04/04/2006||FIGURE 6: Site diagram depicting pushprobe locations where soils and groundwater samples were collected in July 2003||269 Kb|
|View Photo||04/04/2006||FIGURE 7: Site diagram depicting locations where wells (B-1 through B-3) and soil borings were advanced in 2004||141 Kb|
|View Photo||04/04/2006||FIGURE 8: Site diagram depicting soil and groundwater sampling locations in January and April 2005||261 Kb|
|View Photo||04/04/2006||FIGURE 9: Diagram depicting areas of the neighboring Waterfront Pearl Condo Construction site where initial excavation activities encountered contaminated subsurface soils||116 Kb|
|View Photo||04/04/2006||FIGURE 10: Diagram depicting areas where significantly-elevated concentrations of subsurface soil contaminants were detected just beyond the Albers Mill Property's northwest property line.||150 Kb|
|View Photo||04/04/2006||FIGURE 11: Diagram depicting the locations and character of subsurface debris encountered on the Albers Mill Property in August 1988 and February 2004.||133 Kb|
|View Photo||04/04/2006||FIGURE 12: Diagram depicting the locations and character of subsurface debris encountered on the Albers Mill Property in July 2003.||267 Kb|
|Site ID: 4590||Site Name: Albers Mill Property||CERCLIS No:|
|Address:||1200 NW Naito Pkwy. Portland 97209|
|County: Multnomah||Region: Northwest|
|Other location information:||1200 NW Naito Parkway (Tax Lot 100; T1N/R1E-S34BA), Portland, OR 97209 Located in Northwest Portland, between NW Front Avenue / NW Naito Parkway on the southwest, and the Willamette River on the northeast. The Broadway Bridge is located along the site's southeastern boundary; the Waterfront Pearl Condominium Construction site (ECSI #4535) is located along the site's northwestern boundary.|
|Investigation Status:||Suspect site requiring further investigation|
|Brownfield Site: No||NPL Site: No||Orphan Site: No||Study Area: No|
|Property:||Twnshp/Range/Sect: 1N , 1E , 34||Tax Lots: 100 (1N1E34BA)|
||Site Size: 3.22 acres|
|Other Site Names:||
|General Site Description:||
The 5-story Albers Mill Building, a former cereal and grain mill listed on the National Register of Historic Places, is located on the southeastern third of the site, and is now used as a commercial office building. The northwestern two-thirds of the site is occupied by a partially-landscaped, asphalt-paved, pay parking lot associated with the Albers Mill Building. The Willamette River forms the site’s northeastern boundary; NW Naito Parkway forms the site’s southwestern boundary. The Waterfront Pearl Condominium Construction site (ECSI #4535) lies along the site’s northwestern property line; an elevated section of the Broadway Bridge overlooks the site at its southern boundary. The McCormick Pier Condominiums are located along the south side of the Broadway Bridge.
The Union Station Agricultural Marketing Center site (also known as Union Station Parcel A North) (ECSI #1962) is located directly across NW Naito Parkway, southwest of the site. The upstream boundary of Portland Harbor federal superfund cleanup site (ECSI #2068) lies 1.9 miles downstream from the site.
The Albers Mill Company at one time operated the largest cereal and grain manufacturing company on the Pacific Coast. The Portland mill was originally constructed in 1909-1911. At least as far back as 1889, the site was occupied by docks and grain storage warehouses that were constructed on pilings.
The warehousing was demolished in 1965-1966. Addition of 5-30 foot of fill to the northwest end of the site was begun in 1966. The fill may have included concrete-steel bow sections of scrapped Liberty ships. Aerial photographs indicate that additional fill may have been placed along the river and northwest property line sometime after 1980. The mill itself was renovated in 1989 for use as a commercial office building.
A 1,000 gallon PS300 fuel oil storage tank installed at the northwest corner of the mill building in 1963 was decommissioned in December 1988 by filling with cement grout. Soil with low-level petroleum-contamination (172 ppm) near the tank was left in place. Six other USTs (one 12,000 gallon, four 1,000 gallon, and one 500 gallon) installed beneath the Broadway Bridge in 1950 were removed by the Port of Portland in January 1989. Approximately 1,200 cubic yards of petroleum-contaminated soil was removed; 3-4 cubic yards of soil containing up to 636 ppm petroleum was left in place along the Albers Mill Building foundation.
The northwestern two-thirds of the site was paved with asphalt, and is used as parking for the Albers Mill Building, as well as a pay-parking lot.
In October 2005, excavation was begun on property adjoining the northwest edge of the site for construction of the Waterfront Pearl Condominiums. Design plans originally specified construction of four 10-story buildings on undeveloped portions of three adjoining tax lots. Two buildings were to be constructed on the two northwestern tax lots (Tax Lots 300 and 400), owned by the H. Naito Corp; two were to be constructed on the parking lot area on the northwestern two-thirds of Tax Lot 100 (the Albers Mill Property), owned by the Albers Mill Building Partnership. However, a sales agreement between the two property owners had not been reached by May 2005, so construction proceeded only on the two northwestern buildings. Construction plans at the Albers Mill Property remain unclear at this time.
Soils containing limited heavy petroleum contamination (3-4 cubic yards containing up to 636 ppm of PS-300) were left in place along the southeast foundation of the Albers Mill Building following a 1989 underground storage tank (UST) removal.
Low level petroleum contamination (172 ppm) was also detected when a 1,000 gallon PS-300 UST was decommissioned in place at the northwest corner of the Albers Mill Building in 1988.
A pushprobe boring (P-12) advanced about 135 feet northwest of the Albers Mill Building in July 2003 encountered soils with a heavy oil concentration of 905 ppm at 8-12 feet below ground surface (bgs). The full vertical and horizontal extent of this contamination was not defined. The boring was located about 200 feet north of the heating oil tank decommissioned at the northwest corner of the mill building in 1988, and appears unlikely to be related to the minor tank release detected in 1988.
Groundwater sampled from a temporary well (B-1) near the middle of the site's southwestern property line in April 2005 contained copper at a concentration of 88 ppb. The Federal Recommended freshwater Contaminant Maximum Criterion for copper is 13 ppb.
Various borings advanced on the northwestern two-thirds of the site encountered fill debris, including bricks, concrete, wood, metal, glass, and organics, at depths ranging from 0- to 25 feet bgs (borings B-5 from August 1988, and B-3 through B-8 from February 2004; Figure 11)(pushprobes P-6 and P-10 through P13 from July 2003; Figure 12) . Similar debris was encountered in fill on the Waterfront Pearl Condominium Construction site (ECSI #4535), just beyond the Albers Mill Property's northwestern property line. Elevated concentrations of metals and polynuclear aromatic hydrocarbons (PAHs) appear to be associated with debris buried on the Waterfront Pearl site.
Soils initially excavated just northwest of the Albers Mill Property contained concentrations of PAHs that exceed residential soil Preliminary Remediation Goals (PRGs) (see Figures 9 and 10). Elevated concentrations of arsenic (up to 16 ppm) were also detected in some of the initially-excavated soils. Subsurface soil samples collected across the two Waterfront Pearl tax lots in October 2005 through February 2006 contained concentrations of copper, lead, mercury, and nickel above local background concentrations, although lead was the only metal detected at a concentration that exceeded residential soil PRGs; lead concentrations exceeded the residential soil PRG in less than 3-percent of the samples, though.
Like the neighboring Waterfront Pearl Condominium Construction site, buried debris has frequently been encountered in subsurface at the Albers Mills site. Contaminants have also been detected in the Albers Mill site's subsurface soils and groundwater, although it is not known if the character and extent of contamination is similar to that found at the nearby Waterfront Pearl or Union Station Parcel A North sites. Subsurface soils and groundwater at the nearby Union Station Parcel A North site (ECSI #1962) are contaminated with elevated concentrations of petroleum (PAHs) and metals; PCBs are also present in subsurface soils at the Union Station Parcel A North site.
|Manner and Time of Release:||Subsurface contamination at the site may be attributable to historic fill. Some or all of the site's groundwater contamination might originate from the upgradient Union Station Parcel A North site (see Comprehensive Soil and Groundwater RI Report, Union Station, Parcel A North, prepared for Portland Developm,ent Commission, by AGRA Earth & Environmental, Inc., February 1998), although further investigation is needed to verify that groundwater contamination originated off-site.|
|Hazardous Substances/Waste Types:||
Petroleum (as heavy oil) in subsurface soils and metals in groundwater (predominantly copper, but also chromium and zinc).
Potential PAHs, arsenic, lead, mercury, PCBs, asbestos in soils and/or groundwater.
Subsurface soil and groundwater contamination is present beneath a portion of the site that is largely covered by an asphalt-paved parking lot. Contaminated groundwater on this portion of the site could eventually discharge to the Willamette River, and adversely affect aqauatic life within the river.
A stormwater sewer line that discharges to the Willamette River is located along the northwest side of the Albers Mill building. The stormwater line and bedding could act as a preferential migration pathway for contaminated groundwater to reach the river.
The site's subsurface contamination could also represent a potential human health threat to future utility trench workers or future construction workers if the property is redeveloped for condominium construction.
The planned Waterfront Pearl condominiums will have underground parking structures that will likely require a long term groundwater dewatering system. Dewatering activities at the Waterfront Pearl site could intercept or otherwise alter groundwater contamination at the Albers Mill Property, or a potential groundwater contamination plume originating at the nearby Union Station Parcel A North site. Further investigation is needed to define the source and extent of groundwater contamination beneath the Albers Mill Property.
The parcel immediately north of the Albers Mill site is being redeveloped for residential use; residential redevelopment has also been proposed for the northwestern two-thirds of the Albers Mill site. Contaminated subsurface soils exposed during potential future excavating activities at the Albers Mill site could represent a potential health threat to residents, as well as to future construction workers and utility trench workers.
Contaminated groundwater at the site could represent a potential ecological threat to freshwater aquatic life in the Willamette River.
|Status of Investigative or Remedial Action:|
Site Screening, Albers Mill Property, prepared by Geotechnical Resources, Inc., for Norcrest China Co., November 11, 1988 (Appendix B to February 2003 River Queen Redevelopment Project Phase I Report).
Preliminary Site Assessment, River Queen Restaurant Site, prepared by GRI Geotechnical & Environmental Consultants, for Norcrest China Co., November 8, 1991 (Appendix B to February 2003 River Queen Redevelopment Project Phase I Report).
Seismic and Preliminary Foundation Consultation, River Queen Site, prepared by GRI Geotechnical & Environmental Consultants, for Ankrom Moisan Associated Architects, November 22, 2002.
Proposal for Phase I Environmental Site Assessment, River Queen Project, prepared by GRI Geotechnical & Environmental Consultants, for Tonkon Torp, LLC, December 10, 2002 (Appendix A to February 2003 River Queen Redevelopment Project Phase I Report).
Phase I Environmental Site Assessment, River Queen Redevelopment Project, prepared by GRI Geotechnical & Environmental Consultants, for Tonkon Torp, LLC, February 5, 2003.
Phase II Environmental Site Assessment, River Queen Project, prepared by GRI Geotechnical & Environmental Consultants, for Tonkon Torp, LLC, August 12, 2004.
Waterfront Pearl, Supplemental Groundwater Test Results, FAX report prepared by GRI Geotechnical & Environmental Consultants, for Otak, Inc., February 3, 2005.
Geotechnical Investigation, Waterfront Pearl Project, prepared by GRI Geotechnical & Environmental Consultants, for Pemcor, February 24, 2005.
Portland Waterfront Pearl, FAX report prepared by GRI Geotechnical & Environmental Consultants, for Otak, Inc., May 4, 2005.
Additional Water and Soil Environmental Test Results, FAX report prepared by GRI Geotechnical & Environmental Consultants, for Otak, Inc., May 5, 2005.
Responses to Site Development Checklist, Waterfront Pearl Project, prepared by GRI Geotechnical & Environmental Consultants, for City of Portland, Bureau of Development Services, May 20, 2005.
Work Plan for Site Closure, Waterfront Pearl Site (ECSI #4535), prepared by EVREN Northwest, Inc., for Waterfront Pearl Limited Partnership, March 7, 2006.
Comprehensive Soil and Groundwater RI Report, Union Station, Parcel A North (ECSI #1962), prepared by AGRA Earth & Environmental, Inc., for Portland Development Commission, February 1998.
|Substance||Media Contaminated||Concentration Level||Date Recorded|
|CHROMIUM||Groundwater||42 ppb in groundwater at temporary well B-3||4/24/2005 4:41:30 PM|
|COPPER||Groundwater||88 ppb in groundwater at temporary well B-1.||4/24/2005 4:29:02 PM|
|OIL - WASTE||Soil||905 ppm heavy oil (heavier than 30-weight motor oil) in soils at pushprobe boring P-12 at 8-12 feet bgs||7/24/2003 4:51:03 PM|
|ZINC||Groundwater||65 ppb in groundwater at temporary well B-1|
|Action||Start Date||Compl. Date||Resp. Staff||Lead Pgm|
|Remedial Investigation recommended (RI) (Primary Action)||04/10/2006||04/10/2006||Stephen Fortuna||SAS|
|View Full Report Showing Action History|
Key to Certain Acronyms and Terms in this Report:
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