As of February 26, 2009, Chrysler has sampled 118 locations for sub-slab and indoor TCE contamination, installed 54 vapor abatement systems, and continues work on 9 vapor abatement systems.
The Behr VOC Plume Site (funded by Chrysler) and the Behr VOC Plume Site (EPA Fund Lead Removal) are simultaneous removal actions at the same site. This website is for the Behr VOC Plume Site (funded by Chrysler). For further information on the Behr VOC Plume Site (EPA Fund Lead Removal) see the following link:
"http://www.epaosc.net/behrvocplumeepafundleadremoval"
The Behr VOC Plume Site is located in Dayton, Ohio at the intersection of Daniel and Lamar Street. At the request of the Ohio EPA, U.S. EPA Region V has initiated a vapor intrusion investigation at the site.
In March 2006, elevated levels of TCE were documented in the groundwater as high as 3,900 ppb. In October 2006, the Ohio EPA documented elevated levels of TCE in soil gas as high as 160,000 ppb. See Documents section for TCE and Vapor Intrusion Fact Sheets.
Vapor Intrusion is the migration of volatile organic compounds from contaminated shallow groundwater to soil gas to indoor air. ATSDR and the Ohio Department of Health (ODH) have established TCE screening and action levels for residential and commercial sub-slab and indoor air. The ATSDR residential indoor air screening level is 0.4 parts per billion (ppb) and the action level is 100 ppb. The ATSDR residential sub-slab screening level is 4 ppb.
In October and November 2006, the U.S. EPA collected sub-slab air samples from eight residences located south of the Behr-Dayton facility along Milburn Avenue, Daniel Street and Leo Street. TCE residential sub-slab concentrations were detected as high as 62,000 ppb. The results of the EPA sub-slab testing indicated that eight samples exceed the ATSDR residential TCE sub-slab screening level of 4 parts per billion by volume (ppbv).
Based on ATSDR and ODH recommendations, the U.S. EPA followed sub-slab air sampling with indoor air sampling at eight locations in November 2006. TCE residential indoor air concentrations were detected at a range of 0.4-260 ppb. The results of the EPA indoor air sampling indicated that eight samples exceed the ATSDR residential TCE indoor air screening level of 0.4 ppbv and three samples exceed the ATSDR residential TCE indoor air immediate action level of 100 ppbv.
On December 19, 2006, an Administrative Order by Consent was signed between U.S. EPA and DaimlerChrysler (former owner of the Behr facility) to conduct a vapor intrusion investigation and mitigation. On December 21, 2006, EPA approved the Daimler Chrysler Phase 1 work plan for sampling and installation of residential TCE vapor abatement systems in up to 21 residences. See POLREP 1 for additional information.
As of February 8, 2007, eight vapor abatement systems have been installed in residences as part of Phase 1. Phase 1 includes sampling and mitigation (if necessary) in 21 residences immediately south of the Behr facility along Leo Street, Daniel Street, and Milburn Avenue.
A U.S. EPA Public Meeting was conducted on February 8, 2007 at Kiser Elementary School, Dayton, OH. See attached links for news articles summarizing the February 8, 2007 public meeting.
As of March 15, 2007, a total of 14 vapor abatement systems have been installed in the 21 Phase 1 Work Plan locations. Three residents are under a quarterly sampling program, one residence has no further action due to sub-slab and indoor air levels below the screening action levels, two residents have “Best Efforts” achieved and one residence is awaiting results from the pre-mitigation sampling. See POLREP #2 for additional information.
On March 16, 2007, the U.S. EPA approved the DaimlerChrysler Phase 2 Work Plan for Indoor Air Sampling Delineation and Mitigation. Phase 2 work includes additional sub-slab and indoor air sampling, and mitigation (if necessary).
May 15, 2007 Update:
DaimlerChrysler has installed a total of 14 vapor abatement systems in residential homes and 2 vapor abatement systems in commercial businesses. The systems are located in an area bordered by Webster Street to the west, Leo Street to the north, Milburn Street to the east and Lamar Street to the south. DaimlerChrysler is conducting verification air sampling in each of the 16 locations where the systems were installed. U.S. EPA is overseeing the installation and reviewing the results of the verification sampling at each location. DaimlerChrysler is currently conducting Phase 2 sampling and have collected air samples from 17 of 43 Phase 2 locations (refer to Phase 2 map).
Kiser and VanCleve at McGuffey Elementary Schools were sampled by U.S. EPA in March 2007 and documented indoor air TCE concentrations less than the ODH and ATSDR indoor air screening level. Both schools are being placed into a quarterly air monitoring program for further sampling.
June 14, 2007 Update:
DaimlerChrysler is currently working in Phase 2 of the project. A total of 45 structures have been sampled to date including 28 residences, 4 commercial structures, and 13 industrial structures. To date, DaimlerChrysler has installed a total of 14 vapor abatement systems in residential homes and 2 vapor abatement systems in commercial businesses.
July 31, 2007 Update:
DaimlerChrysler is currently working in Phase 2 of the project. A total of 49 structures have been sampled to date. To date, DaimlerChrysler has installed a total of 18 vapor abatement systems in residential and commercial structures. DaimlerChrysler initiated installation of a vapor abatement system at Van Cleve Elementary School.
November 5, 2007 Update:
An EPA Public Meeting was conducted on November 15, 2007 at Kiser Elementary School from 6-8 pm. EPA updated the community on the project status and future plans.
November 13, 2007 Update: EPA modified and approved the Chrysler Phase II Work Plan. EPA funded removal action initiated and will include residential sub-slab and indoor air sampling and installation of vapor abatement mitigation systems in southern McCook Field Neighborhood.
December 17, 2007 Update: Chrysler has installed and/or will be installing 32 vapor abatement mitigation systems in residential and commercial businesses.
January 11, 2008 Update: To date, Chrysler has sampled 76 residential and commercial locations. Chrysler has installed and/or will be installing 35 vapor abatement mitigation systems in residential and commercial businesses.
March 4, 2008 Update: EPA approved the Chrysler Phase II Work Plan Addendum Soil Vapor Extraction System Design. The soil vapor extraction system will enhance the TCE vapor mitigation as part of the indoor air removal action within the residential area between Leo Street, Milburn Ave, Daniel Street, and Lamar Street. The SVE system is designed to focus on properties where soil gas concentrations have not been reduced by sub-slab depressurization systems to levels required by ODH and ATSDR.
April 4, 2008 Update: Soil Vapor Extraction System. The soil vapor extraction system as approved by U.S.EPA is currently being installed in the area bounded by Leo Street to the North, Milburn Street to the East, Daniel Street to the West and Lamar Street to the South. Status of the system installation is as follows:
• The well installation is complete.
• The trenching and piping is complete.
• Waiting on weather to place asphalt over trenches.
• Treatment shed will be moved to the southwest corner of the AMVET property after asphalt has been placed.
• Shed configuration will take place during the week of April 14.
• Landscaping / reseeding residents yards will be conducted the end of April depending on the weather.
• System start-up and check will be conducted during the week of April 21, (with a generator).
• The best estimate from DP&L is that power will be available by early May.
May 5, 2008 Update: Chrysler has completed installing the soil vapor extraction system south of the Behr facility in the area bounded by Leo Street to the North, Milburn Street to the East, Daniel Street to the West and Lamar Street to the South.
Chrysler has conducted vapor intrusion sampling at a total of 82 of 132 structures to date. Of those 82 locations which have been sampled, a total of 38 locations require a vapor abatement mitigation system; 9 are in the quarterly monitoring program; and 35 require "No Further Action".
July 14, 2008 Update: Chrysler has completed installing the soil vapor extraction system south of the Behr facility in the area bounded by Leo Street to the North, Milburn Street to the East, Daniel Street to the West and Lamar Street to the South. Electric connection is pending to initiate system operation.
Chrysler has conducted vapor intrusion sampling at a total of 110 of 156 structures to date. Of those 110 locations which have been sampled, a total of 51 locations require a vapor abatement mitigation system; 11 are in the quarterly monitoring program; and 48 require "No Further Action". A total of 50 vapor abatement mitigation systems have been installed to date by Chrysler.
December 29, 2008 Update: Weekly summary reports are posted in the documents section. Reports summarize the number of structures sampled, mitigated, requiring futher action.
May 15, 2009 Update: Chrysler has sampled 118 structures to date and installed 56 vapor abatement mitigation systems.
See POLREP #3 in the documents section for a July 2009 update.
