Environmental Protection Agency
Skip common site navigation and headers
United States Environmental Protection Agency
Waste Site Cleanup & Reuse in New England
  Serving Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont & 9 Tribal Nations
Begin Hierarchical Links EPA Home > EPA New England > Cleanup > Find NE Sites > YAWORSKI WASTE LAGOON End Hierarchical Links


 

   
Table of Contents:
 Advanced Search
 Site Type: Long Term/National Priorities List (NPL) Click to see more about Site Type and how it is used?

  YAWORSKI WASTE LAGOON


Map this site in Cleanups in My Community
 Canterbury Township,  Connecticut
 Windham County
 Street Address: PACKER ROAD
 Zip Code: 06331
 Congressional
 District(s):

02
 EPA ID #: CTD009774969
 Site ID #: 0100125
 Site Aliases:

 Site Responsibility: Federal, State

 NPL LISTING HISTORY
 Proposed Date 12/30/1982
 Final Date 09/08/1983

Site Description
[Back to Top]

The Yaworski Waste Lagoon is a dewatered and backfilled lagoon, approximately 800 feet by 300 feet and 12 feet deep. From about 1948 to 1973, drummed material and bulk wastes including textile dyes, solvents, resins, acids, caustics, stillbottom sludges, and solvent-soaked rags were disposed of in the lagoon. Periodically, flammable liquid waste was burned in several pits in the lagoon area until 1965, when the Connecticut Department of Health ordered a halt to on-site burning of waste. The combined efforts of local residents and State and local officials concerned about adverse human health and environmental effects from disposal operations at the site led to the end of all dumping at the site in 1973. In 1976, the Connecticut Department of Environmental Protection (CTDEP) directed the site owner to assess the environmental hazard posed by the site. The owner was required to install monitoring wells adjacent to the lagoon. Sampling of these wells detected contaminated groundwater. In 1980, the CTDEP ordered the site owner to employ a professional engineering firm to conduct an environmental study of the property. The firm recommended closing the lagoon by covering the waste and, in 1982, the CTDEP ordered that the lagoon be closed in accordance with the engineering firm's report. After a fire in 1982, the EPA decided that additional information was needed about the site to better assess the potential threats to human health and the environment. The nearest residence that uses groundwater is located 1,600 feet upgradient from the site and across the Quinebaug River. The site is surrounded by agricultural land and bordered by the Quinebaug River. It lies within the 100-year flood plain.

Threats and Contaminants
[Back to Top]

Groundwater samples taken from the areas immediately adjacent to the lagoon revealed the presence of volatile organic compounds (VOCs) and heavy metals. Inorganic contaminants were found in the sediments in the wetlands area just south of the lagoon. Soil samples taken from areas immediately adjacent to the lagoon had revealed the presence of low levels of VOCs. Contaminants have also been detected across the Quinebaug River in groundwater.

Cleanup Approach
[Back to Top]

The site is being addressed through a long-term remedial phase focusing on cleanup of the entire site.

Response Action Status
[Back to Top]

Entire Site The potentially responsible parties contained waste in the lagoon by building an impermeable cover and improving the dike around the lagoon to ensure it would withstand flooding. The lagoon was covered in the summer of 1990 and a permanent vegetative cover was added in 1991. The EPA approved lagoon closure in early 1992. The remedy includes establishing a groundwater protection standard known as Alternative Concentration Limits (ACLs) and thirty years of monitoring to ensure that the ACLs and other standards are met. The remedy also provides for the investigation and potential cleanup of groundwater contamination across the Quinebaug River. The potentially responsible parties installed monitoring wells from 1990 to 1992, and began monitoring the groundwater, surface water, and sediment in 1993 to collect data and ensure protectiveness of human health and the environment. Potentially responsible parties also worked with the EPA on a plan to investigate the groundwater contamination across the river. In December 1996, the EPA made a decision to take over all site work. EPA has continued quarterly monitoring.

Site-wide monitoring EPA conducted site-wide monitoring from December 1996 through July 2011. Monitoring currently occurs three times a year. In March 2011, EPA, in conjunction with CT DEP, eliminated surface water sampling from the monitoring program. EPA also revised the sediment sampling program; the need for future sediment sampling will be assessed by evaluating the levels of certain contaminants of concern in groundwater at the point-of-compliance wells.

Transfer to CT DEEP In September 2011, EPA transferred the responsibility for site-wide operation and maintenance (O&M) to the Connecticut Department of Energy & Environmental Protection (CT DEEP, renamed from CT DEP). CT DEEP is now responsible for all O&M activities, including site-wide monitoring.

Enforcement HighlightsThe companies and individuals responsible for the cleanup under the 1990 Consent Decree had notified EPA that they were no longer able to conduct the work. EPA took over all cleanup activities in December 1996. EPA and the U.S. Department of Justice filed a complaint in federal district court against Pervel Industries, Inc., the generator of more than 90% of the waste, and its parent corporation, the Bemis Company. A separate complaint was also filed against the Yaworski's, owners/operators of the lagoon. Both cases were settled and final cash payments were placed in a Site-specific Special Account; Special Account monies were used for monitoring activities at the site until the account was exhausted in 2011.

Environmental Progress
[Back to Top]

After adding this site to the NPL, the EPA assessed site conditions and determined that the site contamination did not pose an immediate threat to area residents and the surrounding environment while waiting for long-term cleanup actions to be completed at the Yaworski Waste Lagoon site. The construction of an impermeable cover and improvements to the dike have eliminated the threat of residents coming into direct contact with contaminants from the lagoon. Site-wide monitoring began in 1993 and is ongoing.

Current Site Status
[Back to Top]

The first portion of the remedy, a multi-layer cap and improvement of the dike surrounding the lagoon, was completed in late 1990s. The second portion consists of setting Alternate Concentration Limits (ACL) as the groundwater protection standard; monitoring and institutional controls as well as taking corrective action, such as pumping and treating of groundwater, as conditions render necessary. EPA set final ACLs for the site in September 2000. Groundwater contaminants were also discovered across the river from the lagoon; EPA conducted field investigations in 1998 and determined that an engineered remedy is unwarranted given the expected decrease in contamination by natural attenuation. Ongoing monitoring of groundwater includes measurements to evaluate the effectiveness of natural attenuation and determine any changes in the configuration of the lagoon plume; recent monitoring results indicate that natural attenuation was effective in reducing the levels of contaminants in groundwater across the river.

Long-term groundwater monitoring continues. EPA conducted extensive sediment sampling in 2009 to further evaluate the impact of groundwater contaminants to sediment. In March 2011, EPA, in conjunction with CT DEP, eliminated surface water sampling from the monitoring program. EPA also revised the sediment sampling program; the need for future sediment sampling will be assessed by evaluating the levels of certain contaminants of concern in groundwater at the point-of-compliance wells.

In September 2011, EPA transferred the responsibility for all operation & maintenance (O&M) activities at the site, including site-wide monitoring, to CT DEEP.

Site Photos
[Back to Top]


Links to Other Site Information
[Back to Top]
Disclaimer Instructions about PDF

Newsletters & Press Releases:
Press Releases about this project  

Federal Register Notices:
Final NPL Listing  

Administrative Records:
Administrative Record Index, OU 01 Record of Decision (ROD), September 29, 1988 (397 KB)  
Administrative Record Index, De Minimis Settlement, May 15, 1997 (436 KB)  

Reports and Studies:
Five Year Review Report, September 29, 1998 (428KB)  
Preliminary Close Out Report (PCOR), September 20, 2000 (1.23 MB)  
Second Five Year Review Report, September 30, 2003 (898KB)  
Third Five Year Review Report, September 29, 2008 (5.47 MB)  
Fourth Five Year Review Report, September 3, 2013 (6.37 MB)  

Decision Documents:
View Records of Decision (RODS) on-line (EPA HQ)  
Record of Decision (ROD), September 29, 1988 (4.98 MB)   
Institutional Controls at this site  

Other Links:
NPL Site Narrative at Listing:  
Site Progress Profile  

Site Repositories
[Back to Top]

Canterbury Public Library, 1 Municipal Drive, P.O. Box 757, Canterbury, CT 06331 (860) 546-9022
Hours: Monday - Wednesday 10:00am - 7:00pm, Thursday 10:00am - 8:00 pm, Saturday 10:00am - 4:00 pm

OSRR Records and Information Center, 1st Floor, 5 Post Office Square, Suite 100 (HSC), Boston, MA 02109-3912 (617) 918-1440


Contacts
[Back to Top

EPA Remedial Project Manager: Anni Loughlin
Address: US Environmental Protection Agency
5 Post Office Square, Suite 100
Mail Code: OSRR07-1
Boston, MA 02109-3912
Phone #: 617-918-1273
E-Mail Address: loughlin.anni@epa.gov

EPA Community Involvement Coordinator: Kate Renahan
Address: US Environmental Protection Agency
5 Post Office Square, Suite 100
Mail Code: ORA01-1
Boston, MA 02109-3912
Phone #: 617-918-1491
E-Mail Address: renahan.kate@epa.gov

State Agency Contact: Mark Lewis
Address: CT Dept. of Energy and Environmental Protection
79 Elm Street
Hartford, CT 06106-5127
Phone #: 860-424-3768
E-Mail Address: mark.lewis@ct.gov

 


Serving Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont, & 9 Tribal Nations
 
Begin Site Footer

EPA Home | Privacy and Security Notice | Contact Us

Last updated on Wednesday, October 30th, 2013
URL: http://www.epa.gov/region1/superfund/sites/yaworski