TRENT AVENUE SR290 REALIGNMENT
SPOKANE, SPOKANE COUNTY, WASHINGTON
No apparent public health hazard exists for transient persons living near the Brown Building Materials property who might be exposed to contaminants in soil. Lead and TPH levels in surface soil along Riverside Avenue are elevated, but are below levels of concern.
Exposure to Spokane River surface water and sediment is considered unlikely. However, DOH does not consider the current sediment and surface water sampling sufficient to estimate human health risk should future land use result in increased exposure. This consultation did not consider the potential for ecological impacts on the Spokane River.
No apparent public health hazard exists for workers or customers at the Brown Building Materials exposed to contaminants in surface soil. Although a significant amount of coal gasification byproducts exist at depth, surface soil does not appear to be significantly impacted.
No apparent public health hazard exists for workers who may be potentially exposed to contaminants in surface or sub-surface soil while constructing the Trent Avenue realignment. Workers may excavate some contaminated soil during road construction but exposure is expected to be minimal.
No current public health hazard exists for residents drinking water from public supply wells located near the Brown Building Materials property. Site related contaminants have not been detected and are not anticipated in nearby public supply wells. However, site characterization is currently insufficient to predict the extent of groundwater contamination in the area. Future public supply wells located near the site could be at risk from contaminants originating at the Brown Building Materials property.
DOH recommends further characterization of contaminants at Brown Building Materials relative to their potential impact on the Spokane Valley-Rathdrum Prairie Aquifer. Existing data is not sufficient to determine whether future wells located in this aquifer and near to Brown Building Materials would be at risk for site related contamination.
DOH recommends further characterization of Spokane River sediment and surface water near the Brown Building Materials property if the area is redeveloped for non-industrial purposes.
1. Washington State Department of Transportation. SR 290 Southriver Drive City of Spokane: Division Street to Perry Street. Limited environmental assessment report of known and suspected contaminated sites. No Date.
2. URS Consultants Inc. Screening Site inspection Report for Spokane Gas Manufacturing, Spokane, Washington, CERCLIS NO. WAD981762990. Prepared for United States Environmental Protection Agency/ Region 10. May 8, 1995.
3. Hatheway, A.W. Manufactured Gas Plants: Yesterday's Pride Today's Liability. Civil Engineering. November, 1997.
4. Hatheway, A.W. Analysis of Site & Waste Conditions at Spokane Gas Company FMGP, Spokane, Washington. Submitted to Robert Duff (DOH). March 27, 1998.
5. EMCON. Data package for SR 290 Southriver Drive Alignment Investigation, Spokane, Washington. Prepared for Washington State Department of Transportation. November 19, 1997.
6. Landau Associates Inc. Preliminary Site investigation, Former Spokane Manufactured Gas Plant, Spokane, Washington. Prepared for The Washington Water Power Company, Spokane WA 99220. February 9, 1998.
7. EPA Geographic Information Query System (Version 97.1.8). March 25, 1998.
8. CH2M HILL. Draft #3 City of Spokane, Wellhead Protection Program, Phase I technical assessment report. October, 1997.
9. Washington State Department of Health. Drinking Water Access Information Network. March 25, 1998.
10. Teleconference. Robert Duff (DOH) and Brad Phelps (CH2M HILL). April 2, 1998.
This Health Consultation was prepared by the Department of Health under a cooperative agreement with the Agency for Toxic Substances and Disease Registry (ATSDR). It is in accordance with approved methodology and procedures existing at the time the heath consultation was begun.
Technical Project Officer,
Superfund Site Assessment (SSAB)
Division of Health Assessment and Consultation (DHAC)
The Division of Health Assessment and Consultation, ATSDR, has reviewed this health consultation and concurs with its findings.
Chief,SPS,SSAB, DHAC, ATSDR