(AGENPARL) - Roma, 1 Agosto 2024 - (AGENPARL) – gio 01 agosto 2024 Issued: Aug 1, 2024 (11:35am EDT)
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EPA Region 7 Completes Oversight of Removal Activities at C6-Zero Site in
Marengo, Iowa
Explosion and fire at the site in December 2022 started a multi-agency,
multi-year investigation and cleanup
U.S. Environmental Protection Agency, Region 7 – 11201 Renner Blvd., Lenexa,
KS 66219
Iowa, Kansas, Missouri, Nebraska, and Nine Tribal Nations
LENEXA, KAN. (AUG. 1, 2024) – The U.S. Environmental Protection Agency (EPA)
Region 7 has completed oversight of removal operations by the potentially
responsible party at the C6-Zero Site in Marengo, Iowa.
After the explosion and fire on-site on Dec. 8, 2022, the Iowa Department of
Natural Resources (IDNR) maintained the site through an emergency order while
providing oversight to contractors, hired by C6-Zero Iowa LLC, to perform the
cleanup.
EPA began oversight of removal operations in May 2023 after receiving a
request for federal assistance from IDNR in April 2023. C6-Zero and EPA Region
7 entered into an Administrative Settlement Agreement and Order on Consent for
Removal Action to formalize response and removal operations with defined time
frames and deliverables.
As a result of the explosion and subsequent fire, the primary contaminants of
concern associated with the C6-Zero Site included tetrachloroethylene (PCE),
cis-1,2-dichlorothene (DCE), naphthalene and related chemicals, lead, and
petroleum products, among others.
Removal operations at the site included the categorization, bulking, and
disposal of all waste generated on-site, such as contaminated liquids and
solids.
After the removal of these materials, contractors operating on behalf of
C6-Zero excavated additional areas of the site where bulking and disposal
shipping took place. EPA received the final excavation report, and final
report for removal activities, after confirmation sampling indicated that no
additional soil excavation at the site was warranted.
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Learn more about EPA Region 7
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