Town of
Nassau
Dewey Loeffel Landfill Cleanup

Dewey Loeffel Landfill Cleanup

EPA Update on Loeffel Superfund Activities: June 20, 2016 - 9:19AM
 
Below is a summary of the upcoming field work that is anticipated to occur outside of the landfill property itself, as well as some other notable site activities.

·         Landfill/Groundwater Investigation:

o   Discrete-interval soil and groundwater samples are scheduled to be collected both inside and outside of the landfill in July and August. Consistent with the approach in the approved investigation work plan, the sampling locations for this next phase of work are based upon the results of the direct-sensing investigation completed in April 2016.

o   Three pairs of groundwater wells, which were installed in the vicinity of Valley Stream in February 2016, are scheduled to be sampled once GE and SI Group’s contractors are able to secure access to one of the wells located behind Central Nassau Cemetery. Data from the sampling of the three well pairs are needed to determine the location of a deep bedrock well to be installed in the vicinity of Valley Stream. The sampling of these wells is an important part of the groundwater investigation and obtaining access to the well is critical to the project schedule.

o   While GE is unable to sample the three pairs of wells (mentioned in the above bullet) until access to one of the well pairs is secured to allow for sampling, GE and SI Group’s contractors may still be observed in the area, but not on the cemetery property, related to the collection of continuous water level measurements.

·          Drainageways Investigation:

o   No field work expected in the next month. The draft Site Characterization Summary Report was submitted for EPA review in June 2016. This report includes a summary of existing data for the surface drainageways, including the recently collected data collected from late 2015, as well as an evaluation to determine if more information is needed for the study of the drainageways. Following EPA’s approval of this report, GE will submit a work plan detailing the steps necessary for the completion of the study of the drainageways (Phase 2).

·         Monitoring and Other Activities:

o   Annual fish and surface water sampling throughout Tributary T11A, Valatie Kill, and Nassau Lake is scheduled for June/July 2016.

o   For residential wells monitored on a quarterly or semi-annual basis, sampling was completed in May 2016. The next monitoring event will be scheduled for August 2016 and will include residential wells monitored on a quarterly basis.

o   EPA collected 4 surface water and 4 sediment samples from the Valatie Kill adjacent to Donald P Sutherland Elementary School on April 11th. The results have been received from the laboratory and are under review.

o   Groundwater sampling and water level monitoring will be conducted in wells located inside and outside of the landfill. There are approx. 29 wells located outside of the landfill on properties along Mead Road and Central Nassau Road where water level measurements will be collected.

 


EPA SAMPLING AT LOEFFEL SUPERFUND SITE: Wednesday, June 15, 2016 8:00:19 AM

The data from the sampling conducted on June 1, 2016 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 www.epa.gov/superfund/dewey-loeffel-landfill. The sampling data is now located in the middle of the Dewey Loeffel homepage in the “Topics in Focus” text box. 


Dewey Loeffel Landfill Superfund Site - June Project Update
 

EPA Update on PFOA at Loeffel Site: May 31, 2016

Supervisor Fleming,

 

Thank you for your patience in awaiting our response to your request for additional sampling for perfluorinated compounds at the Dewey Loeffel site. Please see the attached letter, which will be mailed in hard copy later today, from Walter Mugdan, the director of EPA Region 2’s Emergency and Remedial Response Division (Superfund).

 

The document may be found here.


EPA Update on Sampling of Treated Water from the Treatment Plant at the Dewey Loeffel Landfill Superfund Site: May 25, 2016

 

The data from the sampling conducted on May 11, 2016 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 www.epa.gov/superfund/dewey-loeffel-landfill. The sampling data is now located in the middle of the Dewey Loeffel homepage in the “Topics in Focus” text box. 


EPA Update on Loeffel Superfund Site - May 17, 2016
 
The data from the sampling conducted on May 4, 2016 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 www.epa.gov/superfund/dewey-loeffel-landfill. The sampling data is now located in the middle of the Dewey Loeffel homepage in the “Topics in Focus” text box. 


 
EPA Update on Loeffel Superfund Site - May 12, 2016

Below is a summary of the upcoming field work that is anticipated to occur outside of the landfill property itself.

·         Landfill/Groundwater:

o   The direct-sensing investigation work on and adjacent to the landfill was completed in April 2016. Following EPA’s review of the results of the direct-sensing investigation, additional soil and groundwater samples are scheduled to be collected outside of the landfill later this summer.

o   Surface water sampling in the southeast drainage ditch and upper portions of the northwest drainageway is scheduled for today, May 12th. See my email from yesterday for more details.

o   Three wells in the vicinity of Valley Stream, which were installed in February 2015, are scheduled to be sampled once GE and SI Group’s contractors are able to access one of the wells (located behind Central Nassau Cemetery). The three wells are located slightly to the west of Valley Stream between Curtis Hill Road and Mead Road. The sampling of the three wells is a critical path item and continues to impact the project schedule.

o   While GE is unable to sample the three wells (mentioned in the above bullet) until access to the well located behind the cemetery property is secured to allow for sampling, GE and SI Group’s contractors may still be observed in the area, but not on the cemetery property, related to the collection of continuous water level measurements.

·          Drainageways:

o   No field work expected in the next month; however, the Site Characterization Summary Report is expected later this spring. This report will include a summary of existing data for the surface drainageways, including the recently collected data collected from late 2015, as well as an evaluation to determine if more information is needed from the study of the drainageways. Following EPA’s approval of this report, GE will submit a work plan for the completion of the study of the drainageways (Phase 2).

o   Annual fish and surface water sampling throughout Tributary T11A, Valatie Kill, and Nassau Lake is scheduled for summer 2016

·         Monitoring and Other Activities:

o   For residential wells monitored on a quarterly or semi-annual basis, sampling is scheduled for May 2016. The next monitoring event will be scheduled for August 2016 and will include residential wells monitored on a quarterly basis.

o   EPA successfully collected 4 surface water and 4 sediment samples from the Valatie Kill adjacent to Donald P Sutherland Elementary School on April 11th. EPA is awaiting the receipt of the analytical results from the laboratory.

o   Groundwater sampling and water level monitoring will be conducted in wells located inside and outside of the landfill. There are approx. 29 wells located outside of the landfill on properties along Mead Road and Central Nassau Road where water level measurements and/or groundwater samples will be collected.

 
EPA Update on Loeffel Superfund Site - May 11, 2016
 
I expect to have my regular email summarizing upcoming field work associated with the Loeffel Landfill sent out within the next couple of days. In the meantime, I wanted to let you know that some of the surface water sampling associated with the landfill-groundwater investigation has been moved up from June 2016 to tomorrow due to drier-than-average weather conditions.

Surface water sampling in the southeast drainage ditch and upper portions of the northwest drainageway was originally scheduled for June 2016. Because these surface water bodies are relatively small with little to no flow during the dry season, there may not be sufficient surface water to complete the sampling in June if dry weather conditions continue. To ensure that a delay in the schedule is avoided, the sampling has been rescheduled for tomorrow, Thursday, May 12th. While it is anticipated that this field work can be completed tomorrow in one day, it may extend into next week (weather permitting). Much of the sampling will be conducted from private properties near the landfill, but some of the work may be visible from Mead Road and Central Nassau Road.  

 


EPA response to PFOA levels
 
From: "Joseph Battipaglia"
Sent: Tuesday, May 10, 2016 4:59:53 PM
Subject: Dewey Loeffel: March 23, 2016 Perfluorinated Compound Sampling Results

Supervisor Fleming,

 

In response to your February 1, 2016 letter asking whether the groundwater and treated effluent from the treatment plant at the Dewey Loeffel Landfill Superfund site had been sampled for perfluorooctanoic acid (PFOA), the EPA committed to collecting samples from the site for PFOA analysis. On March 23, 2016, the EPA collected two samples from the site for the analysis of perfluorinated compounds. The samples were collected from the groundwater influent to the treatment plant and from the treatment plant effluent. The two samples were analyzed for 18 perfluorinated compounds, including PFOA. The results of the sampling are now available and are summarized below.

 

The data was subjected to standard EPA Region 2 validation procedures and protocols and, as a result of that process, it was determined that two detections of perfluorinated compounds were present in the groundwater influent sample and one detection of a perfluorinated compound was present in the treated effluent sample. For the sample collected from the groundwater influent to the treatment plant, PFOA was detected at an estimated concentration of 2.6 parts per trillion (ppt)1 and perfluorobutanoic acid (PFBA) was detected at a concentration of 84 ppt. Note that these compounds were not detected in the treated effluent. For the sample collected from the treated effluent, perfluorobutanesulphonic acid (PFBS) was detected at a concentration of 2 ppt although it was not detected in the groundwater influent sample. The detections of PFOA, PFBA and PFBS are summarized in the table below and discussed further in the text below. A complete table summarizing the analytical results for perfluorinated compounds is also attached.  Click here for the complete table.

 

 

Groundwater Influent

Treated Effluent

PFOA

2.6 J ppt

ND

PFBA

84 ppt

ND

PFBS

ND

2 ppt

ND- Not Detected

J- The analyte is an estimated quantity and the associated numerical value is the approximate concentration of the analyte in the sample.                        

 

EPA is using the best science to develop a lifetime health advisory level for PFOA, which the agency expects to release in spring 2016. Lifetime health advisories serve as guidance and are benchmarks for determining if concentrations of chemicals in tap water from public utilities are safe for public consumption. Health advisories provide federal, state, local and tribal governments with non-regulatory guidance to make decisions in cases when a chemical is not federally regulated. When issued, the lifetime health advisory for PFOA will supersede the provisional health advisory of 400 ppt for PFOA issued in 2009.

 

EPA recommended that people in the Town of Hoosick and the Village of Hoosick Falls who have private wells at which PFOA has been found to be present at a level greater than 100 ppt not use that water for drinking or cooking, and instead use bottled water. EPA’s advice was a result of specific circumstances that existed in that community, including the fact that: 1) free bottled water was being made available to everyone in the community; and 2) the state health department had already offered to test, for PFOA, the private well of everyone in the Town who requested such testing. EPA’s recommendation was also based on site specific information as well as information in the most recent EPA report on PFOA toxicity which underwent external peer review in August 2014.

 

The detection of PFOA in the groundwater influent sample at 2.6 ppt is significantly below both the provisional health advisory level of 400 ppt issued by EPA in 2009 for short-term exposure to PFOA in drinking water, as well as the value of 100 ppt recommended to residents of the Town of Hoosick and the Village of Hoosick Falls. PFOA was not detected in the treated effluent sample.

 

For PFBA, the EPA has not developed a provisional health advisory level for the consumption of drinking water; however, several state agencies have developed values for PFBA under their respective state programs, which are discussed below to provide context for the concentration of PFBA detected in the groundwater influent sample. The Minnesota Department of Health has developed the most stringent of those values with a health risk limit of 7,000 ppt for the lifetime consumption of PFBA in drinking water2. The detection of PFBA at a concentration of 84 ppt in the groundwater influent sample is significantly lower than the health risk limit of 7,000 ppt developed by the Minnesota Department of Health. PFBA was not detected in the treated effluent sample.

 

For PFBS, a detection was observed in the treated effluent, but not in the groundwater influent sample. This is not atypical and could occur under several different scenarios. Two potential explanations include variability of influent groundwater concentrations and desorption of PFBS from the treatment system’s activated carbon units as more highly-sorptive chemicals compete for adsorption sites and adsorb to the activated carbon while displacing PFBS3. PFBS was detected in the treated effluent sample at a concentration of 2 ppt. The treated effluent discharges to the Valatie Kill, which is not utilized as a drinking water source. While a surface water quality standard does not exist that can be applied to the Valatie Kill, adverse effects to human health would not be expected for recreational exposure to PFBS at a concentration of 2 ppt based upon the lower toxicity of short-chained perfluorinated compounds, such as PFBS. Because the variability of influent groundwater concentrations is one potential explanation for the detection of PFBS in the effluent, but not in the influent, PFBS may be present in site groundwater at low concentrations. While the EPA has not developed a provisional health advisory level for the consumption of PFBS in drinking water, as with PFBA discussed above, several state agencies have developed values for PFBS under their respective state programs, which are discussed below to provide context for the sampling results at the site. The Minnesota Department of Health has developed the most stringent of those values with a health risk limit of 7,000 ppt for the lifetime consumption of PFBS in drinking water2. The detection of PFBS at 2 ppt in the treated effluent sample is significantly lower than the health risk limit of 7,000 ppt developed by the Minnesota Department of Health.

 

In summary, the detections of PFOA and PFBA in the groundwater influent, as well as the detection of PFBS in the treated effluent, are not believed to pose an unacceptable risk to human health based upon the best available science. The toxicity of perfluorinated compounds, such as PFOA, PFBA and PFBS, is an area of continuing active scientific investigation. Federal and state regulators are currently working to develop toxicity assessments and regulatory levels for the evaluation of these chemicals. The EPA will continue to monitor scientific progress on these chemicals and provide additional information as it becomes available.

 

If you have any questions or would like to discuss the results further, please feel free to contact me at 518-407-0400.

 

Thank you,

Joe

 

 

1-    Estimated due to data validation

2-    Human Health-Based Water Guidance Table. Minnesota Department of Health, n.d. Web. 10 May 2016. http://www.health.state.mn.us/divs/eh/risk/guidance/gw/table.html

3-    PFCs in Minnesota’s Ambient Environment: 2008 Progress Report. January 2009. Report Coordinator: Summer Streets, Primary Contributors: Mindy Erickson, PhD, Mark Ferrey, Paul Hoff, Laura Solem, PhD, Summer Streets. 520 Lafayette Road, Saint Paul, MN 55155. www.pca.state.mn.us

 


EPA Update on Loeffel Superfund Site - May 10, 2016
 
The data from the sampling conducted on April 27, 2016 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.

On April 28, the first carbon filter unit in the plant (known as the lead) was replaced. The next sampling event, after the carbon filter was replaced, occurred on May 4. The May 4 results are expected next week.

For more information about the site, and to view the most recent sampling results, visit www.epa.gov/superfund/dewey-loeffel-landfill. The sampling data is now located in the middle of the Dewey Loeffel homepage in the “Topics in Focus” text box. 

 

EPA Update on Loeffel Superfund Site - March 22, 2016
 
The data from the sampling conducted on March 9, 2016 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 Loeffel Toxic Site Discharge: Tuesday, March 8, 2016

The data from the sampling conducted on February 24, 2016 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 Loeffel Toxic Site Discharge: Tuesday, March 1, 2016

The data from the sampling conducted on February 17, 2016 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 Loeffel Toxic Site Discharge: Tuesday, February 23, 2016

The data from the sampling conducted on February 10, 2016 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.

 
On February 11, the first carbon filter unit in the plant (known as the lead) was replaced. The next sampling event, after the carbon filter was replaced, occurred on February 17. The February 17 results are expected next week.  For more information about the site, and to view the most recent sampling results, visit http://www.epa.gov/r02earth/superfund/npl/dewey/.

EPA report of increasing discharges at Loeffel Site - February 9, 2016 3:25:28 PM

The data from the sampling conducted on January 27, 2016 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.

The first carbon filter unit in the plant (known as the lead) is scheduled to be replaced this Thursday, February 11.  

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 Loeffel Toxic Site Discharge: Tuesday, February 2, 2016
 
The data from the sampling conducted on January 20, 2016 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.
The first carbon filter unit in the plant (known as the lead) is scheduled to be replaced next Thursday, February 11.  
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 Treatment Plant at the Dewey Loeffel Landfill Superfund Site: January 27, 2016 
 
The data from the sampling conducted on January 13, 2016 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 Treatment Plant at the Dewey Loeffel Landfill Superfund Site: January 19, 2016
 
The data from the sampling conducted on January 6, 2016 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 Treatment Plant at the Dewey Loeffel Landfill Superfund Site: January 12, 2016
 
The data from the sampling conducted on December 29, 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 Treatment Plant at the Dewey Loeffel Landfill Superfund Site: January 5, 2016
 
The data from the sampling conducted on December 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 Treatment Plant at the Dewey Loeffel Landfill Superfund Site: December 29, 2015
 
The data from the sampling conducted on December 16, 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 Treatment Plant at the Dewey Loeffel Landfill Superfund Site: December 21, 2015
 
The data from the sampling conducted on December 9, 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 Treatment Plant at the Dewey Loeffel Landfill Superfund Site: December 15, 2015
 
The data from the sampling conducted on December 2, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.

On December 3, the first carbon filter unit in the plant (known as the lead) was replaced. The next sampling event, after the carbon filter was replaced, occurred on December 9. The December 9 results are expected next week.

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 Treatment Plant at the Dewey Loeffel Landfill Superfund Site: December 8, 2015
 
The data from the sampling conducted on November 24, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.

The first carbon filter unit in the plant (known as the lead) was replaced last Thursday, December 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 Treatment Plant at the Dewey Loeffel Landfill Superfund Site: December 3, 2015

The data from the sampling conducted on November 18, 2015 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.

The first carbon filter unit in the plant (known as the lead) was replaced todayThursday, December 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 Treatment Plant at the Dewey Loeffel Landfill Superfund Site: November 24, 2015
 
The data from the sampling conducted on November 11, 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 Treatment Plant at the Dewey Loeffel Landfill Superfund Site: November 17, 2015
 
The data from the sampling conducted on November 4, 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 Treatment Plant at the Dewey Loeffel Landfill Superfund Site: November 10, 2015
 
The data from the sampling conducted on October 28, 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 Treatment Plant at the Dewey Loeffel Landfill Superfund Site: November 3, 2015

 

The data from the sampling conducted on October 21, 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/.

Also, a reminder that the EPA will hold a Public Information Meeting for the Dewey Loeffel Landfill Superfund Site tomorrow, November 4. Meeting details are below.

EPA Update on Treatment Plant at the Dewey Loeffel Landfill Superfund Site: October 27, 2015
 
The data from the sampling conducted on October 14, 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/.
 

The April 2012 agreement with the Potentially Responsible Parties (GE and SI Group) for the construction and operation of the water treatment plant also required the companies to install five additional groundwater extraction wells along the western edge of the landfill (EW-4 to EW-8). The new extraction wells collect additional contaminated groundwater for treatment at the plant and are located closer to the landfill than the three pre-existing extraction wells. The first of the new extraction wells came online on July 6, 2015. Each of the remaining wells came online in four-week cycles. The fifth, and final, extraction well came online yesterday, October 26.

The EPA will hold a public information meeting for the Dewey Loeffel Landfill Superfund Site on Wednesday, November 4 in Nassau. See page 1 of the Fall 2015 Community Update for more meeting information: http://www3.epa.gov/region02/superfund/npl/dewey/pdf/deweyloeffel_communityupdate_fall2015_final_v2.pdf.


Community Meeting on Wednesday, Nov. 4
 
The EPA invites the public to a community meeting on Wednesday, Nov. 4 to discuss the work that is underway as part of a comprehensive investigation of the contamination associated with the Dewey Loeffel site. 

An “open-house” information session will be held between 6 and 7 p.m. Members of the project team will be available for one-on-one dialogue to provide information and answer questions about current and planned project activities. 

The presentation portion of the meeting will begin at 7 p.m. During the meeting, EPA and GE will give a presentation that will include information about the steps in the Superfund cleanup, the  scope  of  the  investigation, upcoming field work, and treatment plant operations.   
 

EPA Correspondence (to Supervisor Fleming): October 21, 2015
 

EPA approved the Remedial Investigation and Feasibility Study Work Plan for the Landfill and Groundwater at Dewey Loeffel today.

A hardcopy of the work plan will be sent to the township office.

 

In the meantime, you can view the work plan on our website at: http://www3.epa.gov/region02/superfund/npl/dewey/pdf/dewey_rifs_wp_v2_final.pdf

 

As was discussed in Larisa’s email yesterday, a community update that announces the November meeting information will be distributed later this week. In that update we will also be provide notification that the work plan has been finalized.

 


EPA Update on Treatment Plant at the Dewey Loeffel Landfill Superfund Site: October 20, 2015
 
The data from the sampling conducted on October 7, 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/.
 

The EPA is planning a public information meeting for the Dewey Loeffel Landfill Superfund Site on the evening of Wednesday, November 4 in Nassau. During the meeting, representatives from EPA and GE will provide an update on project activities and upcoming field work. A Community Update fact sheet, which includes the meeting information, will be distributed later this week. 


EPA Update on Treatment Plant at the Dewey Loeffel Landfill Superfund Site: October 13, 2015
 
The data from the sampling conducted on September 30, 2015 is now available on EPA’s
Links:
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
Fleming-R2-16-000-3855 (PDF - 766.2 KB)