Read Our Brochure:
Recent Updates:
July 1, 2011
As of May 2011, preliminary soils data show that 176 of 185 quarter-acre grids on the Site had achieved all Site Remediation Goals. Four of the remaining nine grids (all on the West Site) continued to exceed cleanup levels for dioxins and have been the subject of additional excavation and sampling in June. The five remaining grids are still being used for haul roads and a staging area and will be excavated and tested once the other grids are clean.
NPS anticipates that EQIS will re-mobilize in late June to conduct additional excavation in any of the four West Site grids that continue to have dioxin-contaminated soil. If soil sampling results support the conclusion that the contaminated soil has been removed from these grids, then it is anticipated that EQIS will re-mobilize to remove haul roads and excavate and sample in the five remaining grids on the West Site that have been used for haul roads and staging.
EQIS is developing plans for grading and revegetating the East Site. Once those plans are approved by NPS and all sampling results have been confirmed, EQIS will survey and begin grading the East Site, most likely in the fall of 2011. Plans for West Site grading and revegetation will begin as soon as all West Site grids achieve the cleanup levels. East and West Site revegetation may be complete by the spring of 2012.
September 10, 2010
Soil excavation and cleanup verification sampling continue on both the East Site and West Site, as well as erosion control and other site maintenance activities. Much of the current activity at the site is related to the removal of accumulated sediments in the sediment control structures, particularly in the West Site ravine. Sediment removal will increase the capacity of storm water control and sediment retention as a protective measure for area surface waters. While it was hoped that excavation activities for the East Site would be completed this summer, remediation goal exceedances were identified requiring additional excavation and sampling. Once all remediation goals have been achieved, all disturbed areas will be graded and seeded, possibly in late fall 2010 or spring 2011. Grading and revegetation will include the creation of approximately three acres of wetlands, primarily on the East Site, to mitigate for past wetland losses at the site.
March 9, 2010
From August 2009 to the end of February 2010, the Krejci Site contractor performed additional soil excavation in those portions of the Site where sampling indicated continued exceedance of the remediation goals. Following each round of excavation, cleanup verification sampling (CVS) was performed to determine where remediation goals had been met and where additional excavation was needed. This process will continue until all remediation goals have been met in all areas of the Site. Although final data reports are pending, it appears that the East Site (the area of the Krejci Site southeast of I-271) is nearing completion. Once data reports have been approved by the National Park Service and an area of the Site is considered "clean" (i.e., all remediation goals have been attained), then regrading and revegetation plans will be developed by the Site contractor, including plans for wetland restoration. Given current information, it is anticipated that regrading and revegetation of the East Site is likely to occur in the summer or fall of 2010, followed by vegetation monitoring and erosion maintenance.
August 5, 2009
After the West Site entrance and staging pad construction was completed in December 2008, the Site contractor began work on enhancing erosion control structures on both the West and East Sites. The Site contractor is completing a round of cleanup verification sampling (CVS). CVS generates data that is then analyzed and used to identify areas of the Site where Remediation Goals have not been met and, therefore, where additional excavation is needed. The Site contractor and the National Park Service have been reviewing the CVS data as it is generated, and while all data is not yet in, at this time it appears that a significant area of the Site will require additional excavation. For this reason, the Site contractor has developed a plan to initiate additional soil excavation on August 17, 2009. The excavation will begin on the portion of the East Site to the north of Hines Hill Road, then move to the portion of the East Site south of Hines Hill Road. The Site contractor and the National Park Service are making every effort to limit interference with the traffic flow on Hines Hill Road during the excavation, loading, and transportation of material to and from the Site. As the excavation of the East Site continues, another round of CVS will follow. Excavation and further sampling will continue until Remediation Goals have been met. It is anticipated that excavation of the West Site will begin in October 2009, and be completed by the end of the calendar year or soon thereafter. Grading, revegetation, and final road repairs will follow, but such activities cannot begin until all excavation has been completed.
May 14, 2009
During the winter and spring months, contractors at the Krejci Dump Site have been removing accumulated sediment from the catch basins and performing maintenance activities on the other erosion control structures, such as replacing hay bales and silt fencing and placing seed for temporary vegetation cover. Over the course of the last 12 months, soil samples have been collected and analyzed to determine whether or not the Site Remediation Goals (RGs, or cleanup levels) have been met. Although contaminant concentrations were significantly reduced by the first round of soil and debris removal, a significant portion of the Site continues to exceed the cleanup levels. Consequently, preparations are underway for additional soil removal from both the East and West Sites. A staging pad was built on the West Site in December 2008, and East Site staging pads will be installed this summer. Trees have been selectively removed recently from some of the areas that will be subject to the upcoming soil excavation. It is anticipated that additional soil removal will begin in August 2009 and continue for 2 to 3 months. Soil sampling will be performed as areas are excavated to determine the need for further excavation to meet cleanup levels. The same safety measures and traffic patterns will be used during these activities as were used during the 2005 to 2007 soil removal. Site regrading and revegetation can begin once site cleanup levels have been attained and no further soil removal is necessary, which NPS projects will be sometime in 2010.
March 24, 2009
Upcoming site activities include tree cutting in some areas to facilitate excavation and the removal of accumulated sediments from the sediment control structures within the site. Sediment removal had been delayed by the weather and site conditions. These activities are expected to occur over the next few weeks. Verification sampling tests are still being evaluated to determine whether remediation goals have been met across the site. After these tests are complete, the extent of further excavation at the site will be known.
Reports:
Krejci Dump Site Cleanup and Restoration Public Notification Policy
Krejci Dump Remedial Action Work Plan to Address Village of Boston Heights Issues
FAQ about the Krejci Dump Site Cleanup
Project Documents:
For More Information:
Contact Kevin Skerl at (330) 650-5071 ext. 4, or e-mail us.
