Congressional District # 18
REILLY TAR & CHEMICAL CORP. (DOVER PLANT)EPA ID# OHD980610042
Last Updated: September, 2011
The Reilly Tar and Chemical Company site is a 3.66 acre parcel of land situated in Dover, Ohio, on Third Street, southeast of the junction of State Route 211 and State Route 39, three-quarters of a mile north of the junction of Sugar Creek and the Tuscarawas River. The site operated from 1932 to 1956 as a coal tar refinery. During that time, coal tar wastes accumulated on the ground from spillage and other site activities. The site is bordered on the northeast by an abandoned canal turning basin, which functions today as a drainage ditch directing storm water runoff from the city of Dover into the Tuscarawas River. Current land use adjacent to the study area is mainly commercial and residential north of the site toward the Dover downtown area, and industrial to the west and southwest. Public power and sewage facilities are immediately east of the site, and an open and undeveloped industrial area south of the site is currently used for fill and borrow disposal.
The site is currently inactive, is fenced, and is located on the sand and gravel deposits of the Tuscarawas River basin. The aquifer in the deposits is the sole source of drinking water for approximately 28,700 people served by the municipal water systems of Dover and New Philadelphia. An additional 4,000 people obtain drinking water from private wells within three miles of the site.
Site ResponsibilityThis site is being addressed through potentially responsible party (PRP) actions with oversight by the U.S. EPA in consultation with Ohio EPA.
Threats and ContaminantsGroundwater and soil are contaminated with petrochemicals from coal tar wastes. Potential health threats include ingesting or coming into direct contact with contaminated groundwater or soil. Potential contact with hazardous substances is limited, because the site is fenced and contaminated groundwater is not used for drinking or other purposes.
Reilly Industries removed 1,442 tons of coal tar and asphalt materials from the site during June/July, 1990, under a Unilateral Administrative Order dated March 29, 1989. Three types of surficial coal tar materials were encountered during the Expedited Response Action.
A Record of Decision for the site was signed on March 31, 1997, selecting the following remedial response actions: institutional controls; excavation and off-site thermal treatment of drainage ditch and river sediments, surface soils, and contaminated material from the collection trench installation; off-site disposal of solidified tarry materials; excavation and on-site disposal of surface water drainage ditch and river sediments and surface soils; a Resource Conservation and Recovery Act Subtitle D cap over on-site disposed materials; a soil cover over the remainder of the site; hydraulic control and collection of perched groundwater; natural attenuation and long-term monitoring of shallow groundwater; and continued sampling and analysis of river sediments to monitor long term ecological effects.
Implementation of the remedy was completed in September 2000. Tarry material and construction debris was transported off-site and reclaimed. Approximately 4,100 cubic yards of contaminated soil was thermally treated and disposed of at the Lafarge Corporation facility in Buffalo, Iowa. Approximately 2,350 cubic yards of lesser contaminated waste was transported to and disposed of at the Limball Landfill in Dover, Ohio. A 400 foot groundwater recovery trench was installed to capture, treat and dispose of contaminated groundwater in the perched aquifer. Treated groundwater is piped to the Dover Publicly Owned Treatment Works. After removal of the contaminated soil and installation of the recovery trench, 20,700 tons of common burrow fill was brought to the site for grading. A flexible membrane liner and Subtitle D cap was installed over the old building foundation. The site was reseeded and fenced.
Long-term monitoring of the groundwater continues. A five year review of the remedy was performed in 2005. The review concluded that the site is protective of human health and the environment in the short term, but additional information is needed to determine long-term protectiveness. Currently, a revised long-term monitoring plan is being developed which will include installation and monitoring of additional groundwater wells to determine if the remedy is protective of human health and the environment in the long-term.
Also in 2005 and 2006, additional sediment samples were collected from the Tuscarawas River for chemical analysis. The results of the analysis indicate that further work is necessary to determine if sediments and surface water in the river pose a risk to aquatic organisms such as fish and the animals that live in and on the sediments. The additional work will be performed as part of a baseline ecological risk assessment to determine if site-related contamination in the river pose risks to aquatic organisms.
In May 2010, the second five year review for the site was completed. It concluded that the remedy at the site was protective in the short term because there are no unacceptable human or ecological exposures to site contaminants, and that the remedy would not be protective in the long term until site cleanup goals are met. Since the five year review was completed, an analysis of groundwater data has demonstrated that one of the remedial action objectives for the site, hydraulic control of the perched aquifer, is not being achieved by the remedy. U.S. EPA has requested that the PRP revise the remedial design work plan for the site to address this issue.
The site is currently covered and fenced to keep the general public out; this will continue as long-term operation of the remedy continues.
ContactsRemedial Project Manager, U.S. EPA
david linnear (email@example.com)
Community Involvement Coordinator, U.S. EPA
AliasesREILLY TAR & CHEM CORP
REILLY TAR & CHEMICAL(DOVER PLANT)
REILLY TAR & CHEMICAL CORP (DOVER PLANT)