Dover Chemical Corporation/Sugar Creek Valley

State TrusteeState of Ohio
AO Bureau

Also Known As

Dover Chemical/Sugar Creek

Incident Type

Chemical

State

Ohio

Case Status

Restoration

Location

Tuscarawas County, Sugar Creek

Authority

Contaminants of Concern Include

Affected DOI Resources Include

Migratory Birds

Case Description

The Dover Chemical Site (the “Site”) occupies approximately 60 acres on the east bank of Sugar Creek, approximately 1 mile above the confluence with the Tuscarawas River in east central Ohio. The Dover Chemical Corporation facility has been in production since 1949, producing chlorinated organic compounds, including dichlorobenzene, trichlorobenzene, tetrachlorobisphenol A (TCBA), and dihydroxybenzophenone by-products (later replaced with chlorinated paraffin by-products). Decades of spills and improper disposal activities have resulted in severe contamination of Site soils, ground water and surface waters of Sugar Creek (including floodplain soils and sediments. The trustees for natural resources are the U.S. Department of the Interior, acting through the Fish and Wildlife Service and the State of Ohio, acting through the Ohio Environmental Protection Agency (OEPA) (the “Trustees”). The Trustees initiated a natural resource damage assessment (NRDAR) in 2009 under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA). Pursuant to the applicable regulations, the Trustees invited the potentially responsible party to join a cooperative assessment, but it declined. The Trustees proceeded to finalize and implement an Assessment Plan in 2010 (See 43 C.F.R. §§ 11.30-11.38) to determine the extent of injuries from the release of hazardous substances. The Trustees concluded that fish and wildlife in Sugar Creek and surrounding habitat have been exposed to hazardous substances, including but not necessarily limited to, polychlorinated dibenzodioxins, polychlorinated dibenzofurans, hexachlorobenzene, and various chlorinated benzenes. The Trustees entered into settlement negotiations with Dover Chemical Corporation to address natural resource injuries, and on February 27, 2023, a Motion to Enter a proposed Consent Decree was entered with the court. The Trustees also prepared a draft Restoration Plan and Environmental Assessment, which was noticed for a 30-day public comment period beginning on October 2, 2022, until November 2, 2022. The Final Restoration Plan and Environmental Assessment was noticed on February 27, 2023. The court approved the Consent Decree on March 31, 2023. The Consent Decree specifies that Dover Chemical Corporation will fund and implement four restoration-based ecological projects valued at $1,045,000 and provide the State of Ohio with $880,000 to fund future groundwater restoration projects.

Site Location Map, Credit: USFWS


Page 1 of 1
 Document TypeDocument NameDocument Date

Agreement

 MOA/MOU Memorandum of Understanding between the Ohio Environmental Protection Agency and the US Department of the Interior for the Dover Chemical Site Tuscarawas County, Ohio 07/22/2009

Administrative

 Admin Record NPL site narrative for Dover Chemical 07/22/1993

Assessment

 Restoration Plan and Environmental Assessment Draft Appendices A to B: Restoration Plan and Environmental Assessment for the Sugar Creek Valley Natural Resource Damage Assessment at the Dover Chemical Corporation Site 11/03/2022
 Restoration Plan and Environmental Assessment Draft Restoration Plan and Environmental Assessment for the Sugar Creek Valley Natural Resource Damage Assessment at the Dover Chemical Corporation Site 10/03/2022
 Restoration Plan and Environmental Assessment Final Appendices A through C: Restoration Plan and Environmental Assessment for the Sugar Creek Valley Natural Resource Damage Assessment at the Dover Chemical Corporation Site 02/24/2023
 Restoration Plan and Environmental Assessment Final Appendices D through K: Restoration Plan and Environmental Assessment for the Sugar Creek Valley Natural Resource Damage Assessment at the Dover Chemical Corporation Site 02/24/2023
 Restoration Plan and Environmental Assessment Final Restoration Plan and Environmental Assessment for the Sugar Creek Valley Natural Resource Damage Assessment at the Dover Chemical Corporation Site 02/24/2023
 FONSI Finding of No Significant Impact Issuance of a Final Restoration Plan an Environmental Assessment for the Sugar Creek Valley Natural Resource Damage Assessment at the Dover Chemical Site 02/27/2023
 Assessment Plan Natural Resource Damage Assessment Plan for Sugar Creek Valley Assessment Area 07/13/2011
 Invitation to Participate Notification of and Invitation to Participate in Dover Natural Resource Damage Site, Tuscarawas County, Ohio 01/12/2010
 PreAssessment Data Report Preassessment Screen and Determination for Natural Resources Damages Related to Releases from the Dover Chemical Corporation Facility, City of Dover, Tuscarawas County, Ohio 12/02/2009

Settlement

 Consent Decree Dover Chemical Final Consent Decree Entered by Court 03/31/2023

Study

 Other Dover Chemical, Sugar Creek Fish, Health Assessment, Contaminant Exposure Analysis Work Plan 04/21/2015
 Other Sugar Creek Valley Assessment Area Study Plan for Sugar Creek and the Tuscarawas River Biological Community Structure and Chemical Exposure Workplan 04/19/2010
 

No publications have been entered for this case.

Map View

Case Contact

Ohio Ecological Services Field Office

Columbus, OH | (614) 416-8993 | http://www.fws.gov/midwest/Ohio/

Case Trustees

AO Bureau
State TrusteeState of Ohio

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