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Reports & Studies

Below you will find digital copies of recent monthly site status reports and groundwater monitoring reports.

You can also visit the public library in Orrington in person where there is an archive of significant documents that Mallinckrodt US LLC (Mallinckrodt) has submitted to the Maine Department of Environmental Protection (DEP). 
Site Status Reports
Every month, Mallinckrodt submits progress reports on the Orrington Site to the Maine DEP discussing all the tasks and actions completed. 
Groundwater Monitoring Reports (Short Term Comprehensive Monitoring Plan Data Reports)
Each quarter, Mallinckrodt conducts groundwater quality sampling and other monitoring activities as required in plans approved by the Maine DEP.  These results are reported in the Short Term Comprehensive Monitoring Reports. 
Investigation & Studies
Investigations at the Orrington Remediation site began when the HoltraChem site was still in operation, and have culminated in the current design plans for final remediation of the Site.. The key reports below provided the preliminary quantitative and qualitative information regarding characterization of the Site. 
Site Demolition Activities
Mallinckrodt began site dismantling activities by removing process materials and equipment from the former HoltraChem operations buildings. Once this work was completed, the demolition of manufacturing buildings, followed by support buildings and infrastructure was completed. The only building now remaining from the HoltraChem era is a storage building which is continuing to be used for storage and offices as part of the ongoing remedial work.  
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