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Central Chemical Timeline

RI/FS process kicks off

EPA selects City of Hagerstown for Superfund Redevelopment Initiative Pilot Project.

CC recorded Restrictive Covenants on the Site.

EPA, MDE and PRPs meet to discuss agencies’ comments on the draft Work Plan. PRPs submit written response to comments.

EPA and MDE submit written comments to the PRPs on the draft Work Plan. Draft disapproved based on the PRPs proposed surface soil sampling techniques contained in the plan.

The PRPs submitted a Remedial Investigation Work Plan for review by EPA

EPA designates CC as a Superfund site

EPA entered into agreement with 7 PRPs (potentially responsible parties) to conduct RI/FS at site. As of summer 2000, 16 additional PRPs identified.

CC erects new fence, 15 feet beyond original fence line at EPA’s request. Surface soil beyond fences shown not to pose a health risk.

NPL Listing

MDE discovers site contaminants (DDT) extend beyond existing site facility fence toward residential developments (Brighton Manor West Irvin Heights)

MDE soil and fish samples revealed presence of pesticides

Site Assessment Hazardous Ranking Score (HRS) Established

Site Discovery

Site investigation under MDE supervision.

Unauthorized utility line excavation.

Fertilizer Blending operations cease at the plant.

Various environmental complaints registered against Central Chemical.

US Government bans DDT as a suspected carcinogen.

Fire destroys main blending operations buildings. Fire ends pesticide production on site.

MD Water Control Commission notes dumping of DDT on site. Requires CC to build earthwork around dump areas.

DDT first commercially available

Pesticide production begins. CC receives gov’t contracts for DDT*

CC onsite on Mitchell Avenue


The Cleanup Process
The Superfund cleanup process begins with site discovery or notification to EPA of possible releases of hazardous substances. Sites are discovered by various parties, including citizens, State agencies, and EPA Regional offices. Once discovered, sites are entered into the Comprehensive Environmental Response, Compensation, and Liability Information System (CERCLIS), EPA's computerized inventory of potential hazardous substance release sites. EPA then evaluates the potential for a release of hazardous substances from the site through these steps in the Superfund cleanup process:

• Preliminary Assessment/Site Inspection (PA/SI) - This is the first step in the process and culminates in a Hazard Ranking Score (HRS)- a screening mechanism used to place sites on the National Priorities List. The HRS evaluates not only the substances being released and the impact on the immediate vicinity, but the potential and type of pathway (groundwater, air, etc) for future contamination. The Central Chemical Site Identification occurred in 1987, when a sewer line on the property was illegally excavated.

• National Priority List (NPL) Site Listing Process - This is a list of the most serious sites identified for possible long-term cleanup. After the HRS had been established, Central Chemical was placed on the NPL in 1997. The EPA generated this narrative report. A report on the Central Chemical Hazard Ranking Score is posted on TOSC representative Robin Gilden's page for Hagerstown.

• Remedial Investigation/Feasibility Study (RI/FS) - This step determines the nature and extent of contamination. The RI/FS process has several steps and typically lasts 1-2 years. Although this step has two components, Remedial Investigation and Feasibility Study, they are conducted concurrently. This process is where the bulk of decisions that impact how the site will be used in the future are made. Within the RI/FS process, there are several phases: Scoping, Site Characterization, Development and Screening of Alternative Remediations, Treatablitiy Investigations and Detailed Analysis. The RI/FS process kicked off on March 26, 2003.

At Central Chem, the RI/FS process is managed by the EPA with oversight from the Land Use Committee. A detailed description of the process from the EPA end is posted here. The reports from the Land Use Committee are delivered at periodic public meetings.

• Record of Decision (ROD) - explains which cleanup alternatives will be used at NPL sites. The Record of Decision is essentially a public document that records the findings and outcome of the RI/FS.

• Remedial Design/Remedial Action (RD/RA) - preparation and implementation of plans and specifications for applying site remedies. The length of this process is dependant on the remediation process selected in the RI/FS. The Design phase details the specifics of the project to be undertaken, while the Action phase covers implementation.

• Construction Completion and Post Construction Completion - Identifies completion of cleanup activities after construction to ensure that the response provided for the long-term protection of human health and the environment.

• Operation and Maintenance (O&M) - The final step before • Site Deletion from the NPL. The long-term maintenance and supervision of the remediation process includes inspection, sampling, and reporting, and is the responsibility of either the State or Potentially Responsible Party (PRP).

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