MARIETTA - The Ohio EPA has issued a final hazardous waste permit modification for Cytec Industries Inc. at 1405 Greene St. authorizing Cytec to correct contamination issues at its hazardous waste site.
The agency's proposal for the landfill is to anchor a clay slurry wall into bedrock along its west and south sides to prevent ground water from flowing in. The existing soil and clay cap would be primarily augmented along the east side with additional soil and a synthetic liner. A clay berm or equivalent barrier along the northeast portion of the landfill would protect against infiltration of water during floods.
These efforts and hydraulic control for ground water should expedite ground water cleanup, the agency said.
Also the agency will identify the area as having waste remaining in place, forbid the cap or its components from disturbance without consent and restrict ground water use. Long-term monitoring would assess the remedy's adequacy.
The proposed remedies for the other areas include periodic stream and sediment monitoring in Duck Creek, excavation of contaminated soils at the east storage pad, and continuation of a waste cap in the concrete tank saddle area. Based on recent soil sampling, Ohio EPA believes no further action is required at the drainage swale.
The Cytec site has a long history of industrial use. Specialty chemicals were manufactured there until 1996. Prior to modern environmental laws, some industrial process waste chemicals were disposed of on site in ponds, landfills and other areas.
Some of the most contaminated areas at the site have been addressed.
In 2004, Ohio EPA issued Cytec a hazardous waste permit that required the company to investigate and clean up contamination. Two ponds were cleaned and capped, several landfills and disposal areas were excavated and some contaminated soil and piping was removed.
Issuance of the permit can be appealed to the Ohio Environmental Review Appeals Commission. Appeals generally must be filed within 30 days of issuing the final action; therefore, Ohio EPA recommends that anyone wishing to file an appeal contact ERAC at (614) 466-8950 for more information.
Copies of the final permit modification may be viewed along with related documents online; at Ohio EPA's Southeast District Office, 2195 Front St., Logan, Ohio 43138 (740) 385-8501 or 800-686-7330; and at the Division of Materials and Waste Management, 50 W. Town St., Suite 700, Columbus, (614) 644-2917. Interested parties also may write to Ohio EPA at the Logan address for more information.