Town of
Nassau
Dewey Loeffel Landfill Cleanup

Dewey Loeffel Landfill Cleanup

EPA Update of Dewey Loeffel Landfill Superfund Site: August 25, 2015

The data from the sampling conducted on August 12, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.

Both carbon filter units in the plant are in the process of being replaced to ensure that the plant operates at maximum effectiveness. The first carbon filter unit (known as the lead) was replaced last Thursday, August 20. On Friday, August 21, the second carbon filter unit (known as the lag) was taken out of service. The lag carbon filter will be replaced this Thursday, August 27.

With the lag carbon filter unit now out of service, discharge of treated water from the plant occurs after it has been processed through the specialized treatment system for 1,4-dioxane (the HiPOx unit) and the lead carbon filtration unit. Data collected to date has demonstrated that the HiPOx unit is working effectively. Both of the new carbon filtration units are scheduled to be operational by this Friday, August 28th. The data reflecting this replacement of both carbon filters is expected to be available the week of September 7.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.


EPA Update on Valley Stream Testing - August 19, 2015

 

Supervisor Fleming,

 

I am reaching out to provide you advance notification that GE and S.I. Group’s contractors will be conducting some investigation activities in Valley Stream starting on August 25. The investigation activities will include the installation of three staff gauges which are pipes that will be placed in the stream to measure water levels. There will also be field readings collected in the stream (every 50 feet) to assess water quality parameters.

 

These activities are associated with the landfill and groundwater investigation of the Dewey Loeffel Landfill Site. EPA has given GE and S.I. Group interim approval to conduct a limited set of tasks in advance of EPA’s approval of the Remedial Investigation/Feasibility Study Work Plan (RI/FS). As you are likely aware, some of the tasks detailed in the RI/FS work plan are constrained by the season and conditions so that is why EPA provided this interim approval of this work.  

 

This initial work is expected to completed in about 3 days. The start date is dependent upon GE and S.I. Group retaining access from the property owners. If the schedule changes I will provide you with an update. Please let me know if you have any questions.

 

Jennifer LaPoma

Remedial Project Manager

U.S. Environmental Protection Agency – Region 2

290 Broadway

New York, NY 10007


EPA Update of Dewey Loeffel Landfill Superfund Site: August 18, 2015
 
The data from the sampling conducted on August 5, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.

On June 10, 2015, one of the two carbon filter units in the treatment plant was replaced to address a short-term increase in 1,4-dioxane (up to 6.6 parts per billion) in the treated discharge. Data collected after the carbon filter unit was replaced showed that the concentrations of 1,4-dioxane in the treated discharge had decreased.

Between July 22 and July 29, 2015, the concentration of 1,4-dioxane increased from 0.57 parts per billion to 1.3 parts per billion. Based on the data, the EPA has attributed this most recent increase to the carbon filter unit that was not replaced in June. To ensure that the plant continues to operate at maximum effectiveness, the EPA announced last week that both carbon filter units in the plant will be replaced beginning this Thursday, August 20, 2015. The most recent data for 1,4-dioxane (August 5, 2015), now available on the site webpage, is 2.5 parts per billion.

To prevent cross-contamination of the carbon filter units, the first carbon filter unit (known as the lead) will be replaced this Thursday, August 20. On Friday, August 21, the second carbon filter unit (known as the lag) will be taken out of service until it is replaced on Thursday, August 27. While the lag carbon filter unit is out of service, discharge of treated water from the plant will occur after it has been processed through the specialized treatment system for 1,4-dioxane (the HiPOx unit) and the lead carbon filtration unit. Data collected to date has demonstrated that the HiPOx unit is working effectively. Both carbon filtration units are scheduled to be operational by August 28th. The data reflecting this change-out of both carbon filters is expected to be available the week of September 7.

All of the data collected to date continues to meet the discharge limits set by the New York State Department of Environmental Conservation and show no detectable levels of most compounds tested for. EPA will continue its ongoing oversight of the treatment plant operations.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.


Nassau Lake Testing - August 17, 2015
 
From: "LaPoma, Jennifer" <LaPoma.Jennifer@epa.gov>
To: "david.fleming" <david.fleming@townofnassau.org>
Sent: Monday, August 17, 2015 4:03:47 PM
Subject: RE: Nassau Lake

Supervisor Fleming,

 

Yes, GE and their contractors have started the process to request access from property owners for only the Phase 1 portion of the Remedial Investigation for the surface water drainageways. This process can often take many weeks and months so they are trying to secure access so that sampling can begin in the fall, as discussed in the July 2015 project update.

 

I plan on being up in Nassau the evening of August 26th to meet with UNCAGED to discuss their comments on the Phase 1 Remedial Investigation Work Plan for surface drainageways and also the landfill and groundwater RI/FS Work Plan. UNCAGED previously indicated that the Town of Nassau may also attend that meeting. If you will not be participating in that meeting and have additional questions please let me know and we can set up a time for a discussion.  

 

Thanks,

Jennifer LaPoma
EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: August 11, 2015

The data from the sampling conducted on July 29, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.
To maximize the effectiveness of the carbon filtration system in the plant, both carbon filter units are scheduled to be replaced, beginning on August 20.
The startup of the new groundwater extraction wells also continues. The second of five new extraction wells (EW-5) was brought online on August 3.
 
For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: August 4, 2015
 
Locally added note: Amounts of Discharge of 1,4-dioxane have begun to double once again.

FROM THE EPA: 


The data from the sampling conducted on July 22, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage. For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: July 28, 2015

The data from the sampling conducted on July 15, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage. For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: July 21, 2015

The data from the sampling conducted on July 8, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage. For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: July 14, 2015
 

The data from the sampling conducted on July 1, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.  
 
EPA’s 2012 agreement with GE and SI Group, which required construction of the treatment plant at the Dewey Loeffel site, also called for the installation of five additional groundwater extraction wells (EW-4 to EW-8) along the western edge of the landfill. The new extraction wells will collect additional contaminated groundwater and are located closer to the landfill than the three existing extraction wells. The start-up of the first new extraction well (EW-8) occurred on July 6, 2015. Every four weeks thereafter, an additional well is scheduled to be brought online. All five of the new extraction wells are expected to be operating by November 2015.

EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: July 7, 2015
 

The data from the sampling conducted on June 24, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.  

EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: June 16, 2015
TOWN NOTE: Please note that the discharge of 1,4-dioxane into the Valatie Kill has reached 6.6ppb.

EPA UPDATE -
The data from the sampling conducted on June 3, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.
 

The recent increase in 1,4-dioxane concentrations has been attributed to the carbon filtration system at the plant. To improve the carbon system’s effectiveness, one of the carbon filter units in the plant was replaced last week (June 10).

A sample of treated water was collected after the carbon filter unit was replaced (June 12) and those results are expected to be available next week.

The data show no detectable levels of most other compounds tested for.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.


EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: June 9, 2015
 
Supervisor's note: Please note the discharge has hit a high of 5.7 ppb of 1,4-dioxane.  The full results follow:

 

The data from the sampling conducted on May 27, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage. 

 

The EPA has determined that the recent increase in 1,4-dioxane concentrations is likely attributable to the carbon filtration system at the plant. To improve the carbon system’s effectiveness, one of the carbon filter units in the plant is scheduled to be replaced this week (June 10).

This week’s sample of treated water will be collected after the carbon filter unit has been replaced and those results are expected to be available the week of June 22.

The data show no detectable levels of most other compounds tested for.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.
EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: June 2, 2015

 

The data from the sampling conducted on May 20, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage. For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.


EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: May 28, 2015

 

The data from the sampling conducted on May 13, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage. For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.


EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: May 11, 2015
 

The data from the sampling conducted on April 29, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.  

EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: May 19, 2015

The data from the sampling conducted on May 6, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage. For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

 

Fish Sampling Report Available:

Annual fish sampling in the Valatie Kill and Nassau Lake was conducted by GE, with NYSDEC and EPA oversight, in June and July 2014. A summary report is available under “Additional Documents” on the EPA Dewey Loeffel webpage: http://www.epa.gov/region2/superfund/npl/dewey/docs.html.

 

EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: May 4, 2015

 

The data from the sampling conducted on April 22, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/
EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: April 28, 2015

 

The data from the sampling conducted on April 15, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/
The April 2015 EPA Project Update for the Dewey Loeffel Landfill Superfund Site is available in the documents listed below or by clicking here.

EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: April 14, 2015

 

The data from the sampling conducted on April 1, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/
EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: March 27, 2015

 

The data from the sampling conducted on March 11, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/

EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: March 16, 2015

 

The data from the sampling conducted on March 4, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

EPA Update on the Loeffel Superfund Site: March 2, 2015

Sampling of Treated Water

The data from the sampling conducted on February 18, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

Surface Water and Sediment Sampling Report

During the public meetings held in Nassau and Kinderhook in March 2014, the EPA committed to collecting surface water and sediment samples near the Dewey Loeffel Superfund site and in Kinderhook Lake. Samples were collected by the EPA Region 2 Division of Environmental Science and Assessment, Hazardous Waste Support Branch – Superfund Support Team in May 2014. Approximately ten water and nine sediment samples were collected from locations above (north) and below (south) the water treatment plant on the Valatie Kill; on the Valatie Kill between Nassau Lake and Kinderhook Lake; and in Kinderhook Lake. The Sampling Report, which summarizes the sampling event and results, is available on the EPA Dewey Loeffel Landfill webpage under “Additional Documents”: http://www.epa.gov/region2/superfund/npl/dewey/docs.html.

 


EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: February 23, 2015

 

The data from the sampling conducted on February 11, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

EPA Update on Sampling of Treated Water from the Loeffel Superfund Site: February 17, 2015

 

The data from the sampling conducted on February 4, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.


EPA Update on Sampling at Loeffel - February 9, 2015

 

The data from the sampling conducted on January 29, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.
For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.


EPA Update on Sampling of Treated Water at Loeffel - February 3, 2015

 

 
The data from the sampling conducted on January 21, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.
 
For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

EPA Update on Sampling of Treated Water at Loeffel - January 26, 2015
 
The data from the sampling conducted on January 14, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.
 
For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

EPA Update on Sampling of Treated Water from the Treatment Plant at the Dewey Loeffel Landfill Superfund Site - January 20, 2015

The data from the sampling conducted on January 7, 2015 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.
 
For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

EPA Update on Sampling of Treated Water from the Treatment Plant at the Dewey Loeffel Landfill Superfund Site - January 13, 2015
 
The data from the sampling conducted on December 29, 2014 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

EPA Update on Sampling of Treated Water from the Treatment Plant at the Dewey Loeffel Landfill Superfund Site - January 6, 2015 2:03:15 PM

The data from the sampling conducted on December 22, 2014 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.
The new treatment system (HiPOx) to further address the long-term treatment of the chemical 1,4-dioxane has been added to the plant and was brought online on December 16, 2014. With the new unit in place, the plant has resumed operating at a flow rate of approximately 2 gallons per minute. Additional information about the continued operation of the plant and further increases in flow rate operations can be found at the link below.

For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.
EPA Update on Sampling of Treated Water from the Treatment Plant at the Dewey Loeffel Landfill Superfund Site - December 23, 2014
 
The data from the sampling conducted on December 15, 2014 is now available on EPA's Dewey Loeffel Landfill Superfund Site webpage. The data show no detectable levels of most compounds tested for.
The installation of the new treatment system (HiPOx) has been completed and the system was brought online on December 16, 2014.
The next round of sampling results will be available the week of January 5, 2015. For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

EPA Discharge Update - December 16, 2014 4:48:34 PM

Direct discharge of treated water from the treatment plant at the Dewey Loeffel Landfill Superfund site began on December 2, 2014. The treatment plant was designed to treat the contaminated ground water and liquid that seeps out from the landfill, called leachate. While there are no tanks remaining on site to store the treated water before it is discharged, the treated water continues to be sampled. Sampling of the treated water is being conducted in accordance with the discharge requirements set by the New York State Department of Environmental Conservation, which are designed to be protective of the water body receiving the discharge. There are weekly, biweekly and quarterly sampling requirements. The data from the sampling conducted on December 4, 2014 show no detectable levels of most compounds tested for. The sampling data has been posted online and is available on the EPA's Dewey Loeffel site webpage<http://www.epa.gov/r02earth/superfund/npl/dewey/>.

The new treatment system (HiPOx) is also in the process of being added to the plant to further address the long-term treatment of the chemical 1,4-dioxane. The unit has arrived on site and is being installed. It is expected to be brought online by next week. The existing carbon filter unit in the plant will continue to treat 1,4-dioxane until the additional treatment system is brought online and will remain in place after the new system is installed. The plant is currently operating at a reduced flow rate of 0.5 gallons per minute (gpm). Once the new treatment system is in place the plant will resume operating at approximately 2 gpm. Additional information about the continued operation of the plant and further increases in flow rate operations can be found at the link below.
For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

Larisa W. Romanowski
Public Affairs Specialist
U.S. Environmental Protection Agency
Region 2 Hudson River Field Office

EPA Final Tank Discharge and Update - December 1, 2014

The EPA has completed its review of samples taken from the forty-eighth tank of treated water ("Tank 48") from the Dewey Loeffel Landfill Superfund site located in the town of Nassau. The treatment plant was designed to treat the contaminated ground water and liquid that seeps out from the landfill, called leachate. The data show no detectable levels of most compounds tested for. All compounds were well below the limits set by the New York State Department of Environmental Conservation (NYSDEC) for discharging into the Valatie Kill. Based on this data, the EPA is approving the discharge of Tank 48 for Monday, December 1, 2014.
Tank 48 is the final tank being discharged. All tanks discharged have met the discharge requirements as set by the NYSDEC.

Direct discharge to the Valatie Kill will begin December 2, 2014. The comprehensive sampling program has demonstrated that the treatment plant is working successfully. As announced last July, a new treatment system (HiPOx) is being added to the treatment plant to further address the long-term treatment of the chemical 1,4-dioxane. To date, the granulated activated carbon system in the plant has been effectively treating 1,4-dioxane. The carbon filter system will continue to treat 1,4-dioxane until the additional treatment system comes online and will remain in place after the new system is installed. To provide further assurance to the community, a carbon filter unit in the plant was replaced with fresh, new carbon on November 20. In addition, beginning on December 2, the water treatment plant will operate at a reduced flow rate of approximately 0.5 gallons per minute (gpm) until the new treatment unit for 1,4-dioxane is operating. It is estimated that the equivalent of less than one tank of treated water will be directly discharged during the 2-3 week delivery and installation period. Once the new treatment system is in place the plant will resume operating at approximately 2 gpm. Additional information about the continued operation of the plant and further increases in flow rate operations can be found at the link below.
For more information about the site, and to view the Tank 48 sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

Larisa W. Romanowski
Public Affairs Specialist
U.S. Environmental Protection Agency
Region 2 Hudson River Field Office

EPA update on Dewey Loeffel discharge of treated water - November 17, 2014

The EPA has completed its review of samples taken from the forty-sixth tank of treated water ("Tank 46") from the Dewey Loeffel Landfill Superfund site located in the town of Nassau. The treatment plant was designed to treat the contaminated ground water and liquid that seeps out from the landfill, called leachate. The data show no detectable levels of most compounds tested for. All compounds were well below the limits set by the New York State Department of Environmental Conservation for discharging into the Valatie Kill. Based on this data, the EPA is approving the discharge of Tank 46 for Wednesday, November 19, 2014.
For more information about the site, and to view the Tank 46 sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/

EPA update on Dewey Loeffel discharge of treated water - November 12, 2014 11:02:10 AM
 
The EPA has completed its review of samples taken from the forty-fifth tank of treated water ("Tank 45") from the Dewey Loeffel Landfill Superfund site located in the town of Nassau. The treatment plant was designed to treat the contaminated ground water and liquid that seeps out from the landfill, called leachate. The data show no detectable levels of most compounds tested for. All compounds were well below the limits set by the New York State Department of Environmental Conservation for discharging into the Valatie Kill. Based on this data, the EPA is approving the discharge of Tank 45 for Wednesday, November 12, 2014.
For more information about the site, and to view the Tank 45 sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

Larisa W. Romanowski
Public Affairs Specialist
U.S. Environmental Protection Agency
Region 2 Hudson River Field Office

New document posted - November 8, 2014
 
The Site Characterization Summary Report Last Revised October 29, 2014 has been released and is available on this web page.  Note that this is a very large document - 13,749 pages and 84.6MBytes.
 

EPA update on Dewey Loeffel discharge of treated water - November 4, 2014

The EPA has completed its review of samples taken from the forty-fourth tank of treated water ("Tank 44") from the Dewey Loeffel Landfill Superfund site located in the town of Nassau. The treatment plant was designed to treat the contaminated ground water and liquid that seeps out from the landfill, called leachate. The data show no detectable levels of most compounds tested for. All compounds were well below the limits set by the New York State Department of Environmental Conservation for discharging into the Valatie Kill. Based on this data, the EPA is approving the discharge of Tank 44 for Wednesday, November 5, 2014.

For more information about the site, and to view the Tank 44 sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.
 
Larisa W. Romanowski
Public Affairs Specialist
U.S. Environmental Protection Agency
Region 2 Hudson River Field Office

New document posted - October 28, 2014
 
The Remedial Investigation/Feasibility Study Work Plan dated 6 October 2014 has been posted to the documents list below.

EPA update on Dewey Loeffel discharge of treated water - October 21, 2014
 
The EPA has completed its review of samples taken from the forty-second tank of treated water ("Tank 42") from the Dewey Loeffel Landfill Superfund site located in the town of Nassau. The treatment plant was designed to treat the contaminated ground water and liquid that seeps out from the landfill, called leachate. The data show no detectable levels of most compounds tested for. All compounds were well below the limits set by the New York State Department of Environmental Conservation for discharging into the Valatie Kill. Based on this data, the EPA is approving the discharge of Tank 42 for Wednesday, October 22, 2014.

For more information about the site, and to view the Tank 42 sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

Larisa W. Romanowski
Public Affairs Specialist
U.S. Environmental Protection Agency
Region 2 Hudson River Field Office

Resident Update on Loeffel Toxic Waste Site Concerns – October 1, 2014

The EPA has contacted the Town regarding testing at the Loeffel site and has provided some background information about the inaccurate testing.

EPA provided the following information:

"The labs currently conducting these tests are Pace Analytical , St. Peter's Hospital Environmental Laboratory (BOD 5), and ALS Group (1,4-dioxane). Please note that none of the samples collected at the water treatment plant to date are the subject of the Department of Health (DOH) settlement with Pace Analytical. The DOH settlement referred to testing methodology employed between 2006 and August 29, 2013. The treatment plant began collecting discharge samples in January 2014. It is important to note also that the analysis of volatile organic compounds and 1,4-dioxane was not the subject of the settlement. Pace continues to be certified under the NYSDOH Environmental Laboratory Approval program."

They additionally stated in a community update:

"The EPA has completed its review of samples taken from the thirty-ninth tank of treated water ("Tank 39") from the Dewey Loeffel Landfill Superfund site located in the town of Nassau. The treatment plant was designed to treat the contaminated ground water and liquid that seeps out from the landfill, called leachate. The data show no detectable levels of most compounds tested for. All compounds were well below the limits set by the New York State Department of Environmental Conservation for discharging into the Valatie Kill. Based on this data, the EPA is approving the discharge of Tank 39 for Wednesday, October 1, 2014."

 

For more information about the site, and to view the Tank 39 sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

 
David F. Fleming, Jr., Supervisor
Town of Nassau
29 Church Street, P.O. Box 587
Nassau, New York  12123
518.766.3559 ext. 2
www.townofnassau.org

Loeffel Toxic Site Information Update - September 29, 2014

The New York State Department of Health and the United States EPA have responded to a request for information. As you will note from their responses, they provide little in the way of actual answers to the questions residents have been frequently posing since this recent inaccurate testing settlement was reported by the media.  These responses were sent after 5:00 p.m. on Friday and the EPA promptly contacted the media.  However, other than the email, they have not contacted the Town of Nassau to provide any real answers.   Loeffel Coalition members continue to request details behind this legal settlement.
 
Copies of these letters are located below.
 

Resident Update on Loeffel Toxic Waste Site Concerns – September 26, 2014
 
Many residents have contacted my office regarding news reports of faulty tests conducted relative to contamination at and around the Dewey Loeffel Toxic Waste Site. Please note that these tests involve the New York State Department of Health (DOH) and supervision of the site is the responsibility of the United States EPA (EPA).
As of the date of this notice, neither the EPA nor the DOH has contacted the town of Nassau regarding the failures of oversight at the toxic landfill.  They have not provided the community with the context of this matter of contamination nor any information on how it may have impacted remedial action decisions to date.
We did not learn of this situation until we read about it in the newspaper.
We have contacted both agencies and you may read our letter here.  If we receive any information, we will be sure to share this information with you on this website.
You may read the recent news updates on this matter by clicking the following links.
 
Thank you for your understanding during this difficult situation.
David Fleming, Town Supervisor
 
Documents:
TON EPA letter 3202015 (PDF - 49.0 KB)
Letter to the USEPA from Nassau - March 20, 2015
The following correspondence relates to the comprehensive assessment of remedial options and cost for the Loeffel Superfund Site.
EPA ORDER on Consent (PDF - 1.7 MB)
13070056_Level_1 (PDF - 4.2 MB)
13070057_Level_1 (PDF - 3.6 MB)
DL Soil Borings 070213 (PDF - 12.5 KB)

NYSDEC UPDATE on Groundwater Extraction

The following is the Loeffel 2011 Leachate and Off-site Groundwater Extraction report provided by NYSDEC and completed by the DEC consultant up to the point to when EPA took responsibility to operate the pump and truck systems.  This report is dated December 27, 2011.

 

Permitting Rule Excerpt (PDF - 21.2 KB)

EPA UPDATE – 8/31/2011

EPA recently provided an update on progress at the Dewey Loeffel site. As discussed in their last report, installation of the groundwater monitoring wells began in late June and was completed in mid-July. In August, geophysical evaluation began and further testing of the wells (including sampling) is underway. The groundwater evaluation is schedule to be completed by the end of September.

As you may recall, the Landfill Cap Investigation was initiated in May. The technical report with the results of the investigation is expected by the end of September and will be available on EPA’s website at http://www.epa.gov/region2/superfund/npl/dewey/.

A report summarizing the results of the groundwater investigations is expected at the end of this year. Additional groundwater investigations may be necessary and are dependent on the findings of the investigation.

 

 

The attachment represents a map with the well locations and properties identified for current EPA work on the Loeffel Site.  

EPA has placed 2 wells on property (A. Smith - Block 5 , Lot 20) .  Those are wells 3 and 5 on the attached map.   They have placed 3 wells on property (Block 5 , Lot 21).   Those are wells 1, 2, and 4. 

August 1, 2011 Update on the Loeffel Landfill

Attached is the May, 2011 Groundwater Sampling Event Monitoring Report completed by GE's consultant Tetra Tech Geo (formerly GeoTrans).  The report is dated July 28, 2011.  GE's consultant will conduct their fall groundwater monitoring well sampling in October.  As evidenced by sample results from OMW-222 and OMW-223 (all parameters were non-detect), the groundwater plume has not migrated further in that direction.  This sampling event is a separate effort from the residential well sampling which is conducted by GE's other consultant Arcadis.

 

Also, I would like to report that at the request of EPA, the DEC is now operating the off-site groundwater extraction wells.  You can expect that the number of tanker trips will increase considerably. EPA has completed the installation of five additional off-site monitoring wells and will be performing testing on them shortly. 

 

Mike Komoroske, P.E.
Environmental Engineer 3
NYSDEC
Remedial Bureau B
Division of Environmental Remediation
625 Broadway, 12th Floor
Albany, NY, 12233-7016

Here is the Nassau Lake Dam Technical Inspection report from July 2011 (NLD Tech Inspect T2) with its cover letter.
T&D_Summary_May 2011_2 (PDF - 80.5 KB)
LOEFFEL SITE CLEANUP UPDATE: June 17, 2011

Dear Community Members:

Please find information the Town has requested concerning the tanker trips and loads from the Loeffel Landfill by clicking the above link.  DEC reports that there were 14 tanker trips in the months of April and May.  Their claim is that the leachate composition has not changed.  Additionally, I want to advise you that EPA will begin the off-site monitoring well installation next week.  Their contractors are expected to begin efforts on June 20th.  The actual work is not scheduled to begin until the next day.   GE is also sending consultants out to conduct additional soil and sediment sampling in/near T11A beginning June 22nd.  This sampling is expected to take a few days.


Please let me know if you have any questions. 

Thank you and best regards.

Dave Fleming, Town Supervisor

2010 landfill leachate and off-site groundwater extraction report completed by the state consultant Mactec - posted 28 February 2011.
2010 groundwater sampling results (GE October, 2010 groundwater report) - posted 28 February 2011