|
News staff writer
April 26,
2006
The Oregon Department of Environmental Quality (DEQ) invites the
public to comment on its No Further Action finding for the
former Oak Street Gas Stop, aka “The Station,” at 403 Oak St. in
Hood River.
DEQ has reviewed the closure report for the facility submitted
on behalf of the owners of the property referencing past
remedial activities and documenting the investigative results
from soil and groundwater sampling. Based upon the report and
previously submitted information, DEQ finds that the facility
meets the requirements of Oregon Administrative Rules that
govern the remediation of petroleum product contamination from
underground storage tanks (USTs).
In September 1998, Sheldon Petroleum Service LLC (Sheldon) of
Pendleton discovered petroleum contaminated soil on the property
during underground storage tank (UST) upgrading activities.
Following excavation of 11.27 tons of contaminated soil
surrounding a 10,000-gallon UST, Sheldon initiated cleanup of
remaining petroleum-contaminated soil.
The discovery of gasoline impacted soil and groundwater at
depths greater than 9.5 feet in July 2004, during sanitary sewer
construction a half block east of The Station, required
additional sampling at the facility. The sewer excavation
sampling revealed that all soil and groundwater sample
concentrations were below any required cleanup level and
indicative of very old gasoline.
During April 2005, Mark Yinger Associates conducted three
borings, one near two USTs and two along Oak Street, at the
facility. The UST borings did not have any detectable gasoline
or detectable volatile organic compounds (VOC) constituents. The
boring near the northeast corner of the property had no
detectible gasoline and two VOCs at very low concentrations. The
other boring was near the dispenser island and had gasoline
present at 1,530 milligram/kilogram with eight detectable VOCs.
In December 2005, the two USTs were decommissioned. One was
removed and the other left in place due to its location near the
sidewalk and street. Soil samples taken had no detectable
gasoline. Groundwater sampling revealed gasoline and detectable
VOCs. Soil samples from under the fuel dispensers had low levels
of detectable VOCs.
Exposure pathways for urban residents (e.g., apartment
dwellers), occupational workers (e.g., retail business
employees) and excavation workers were evaluated. Evaluation of
exposure pathways to single-family homes was not necessary given
that zoning precludes residences in the immediate area. The
remaining gasoline and VOCs are either below risk-based cleanup
values or the exposure pathways are incomplete.
For additional information, contact DEQ project manager O.J.
Roman at (541) 298-7255 ext 25 or via e-mail, at
roman.bud@deq.state.or.us.
The MYA report, documents describing past remedial activities
and project files are available for public review by appointment
at DEQ’s Eastern Region The Dalles office, 400 E. Scenic Dr.,
Ste. 2.307, The Dalles, OR 97058. To review the site files in
person, contact Liz Clark at the The Dalles office at (541)
298-7255 ext 21.
Written comments may be submitted via e-mail to
roman.bud@deq.state.or.us or
sent to O.J. Roman, DEQ The Dalles office, 400 E. Scenic Dr.,
Ste. 2.307, The Dalles, OR 97058. Comments must be received by 5
p.m., Wednesday, May 3. |
