Town of
Nassau
Dewey Loeffel Landfill Cleanup - 2016

Dewey Loeffel Landfill Cleanup - 2016

The data from the sampling conducted on December 21 and December 28, 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.  

 

The EPA will hold a public information meeting for the Dewey Loeffel Landfill Superfund Site on Wednesday, January 25 in Nassau. See page 1 of the Winter 2017 Community Update for more meeting information: https://semspub.epa.gov/work/02/458653.pdf.


The data from the sampling conducted on December 14, 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. 

Summary Report on Loeffel Superfund Drainage Ways - December 9, 2016
Any community comments on the following report should be directed to the Supervisor's office by December 27, 2016.  Thank you
 

The data from the sampling conducted on December 7, 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.  

 
Loeffel Superfund EPA Update - November 23, 2016

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 upcoming or recently completed site activities.

·         Landfill/Groundwater Investigation:

o   As part of the investigation of shallow groundwater, the installation of overburden and shallow bedrock wells is scheduled to begin the week of December 5, 2016. A total of 37 wells will be installed at 19 locations both inside and immediately adjacent to the landfill (see the attached figure). Consistent with the approved investigation work plan, the locations and depths of these new wells were selected based upon the results of the direct-sensing investigation and the discrete groundwater and soil sampling conducted earlier in 2016. Following installation and development, these wells will be sampled to help determine the nature and extent of shallow groundwater impacts.

o   As part of the investigation of deep bedrock groundwater, the installation of three new deep bedrock boreholes is scheduled to begin in the next two months. The first borehole (DBH-01) will be located to the southwest of the landfill and its installation is scheduled to begin the week of November 28, 2016. The second borehole (DBH-02) will be located south of the landfill and its installation is scheduled to begin in January 2017. The third borehole (DBH-03) will be located near Valley Stream and its installation is scheduled to begin the week of December 5, 2016. The attached figure shows the approximate locations of these 3 new bedrock boreholes. Several different sampling and testing activities will be conducted within the three bedrock boreholes before they are ultimately converted into multi-level monitoring wells and sampled to help determine the nature and extent of deep groundwater impacts. Subject to property owner approval, a sample is also scheduled to be collected from a private well located near Valley Stream to obtain additional information in support of the bedrock groundwater evaluation. The collection of near-continuous water level monitoring data from the three pairs of groundwater wells installed near Valley Stream was completed in early November 2016.

o   As part of the investigation of vapor intrusion, the installation of three shallow groundwater monitoring wells was completed in August 2016. The three wells will be sampled once a sufficient quantity of groundwater is available within the wells. One well was installed at a property along Central Nassau Road and two wells were installed at a property along Mead Road. Consistent with the approved investigation work plan, the results of the sampling of the shallow wells will be used to evaluate the potential for vapor intrusion.

o   Some of the abovementioned activities may be visible along Mead Road, Central Nassau Road and Curtis Hill Road. The Respondents have indicated that traffic control measures may be required for some of these activities and will be implemented, if needed.

·          Drainageways Investigation:

o   No field work expected in the next month.

·         Monitoring and Other Activities:

o   The next residential well monitoring event is scheduled for February 2017 and will include residential wells monitored on a quarterly basis.

o   The sampling of surface water from 14 locations within the Valatie Kill and Tributary T11A is conducted annually in 3 separate sampling events. The first of the three events was conducted in June, the second event was conducted in October and a third event is scheduled to be completed in December 2016.

 

New Deep Bedrock Borehole Locations

New Overburden and Shallow Bedrock Monitoring Well Locations

 


EPA Update on Loeffel Sampling - November 9, 2016-November 22, 2016

The data from the sampling conducted on November 9, 16 and 22, 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.  


Friday, November 18, 2016 1:22 PM
Subject: Dewey Loeffel - Upcoming RI Field Activities

As discussed during our telephone conversation yesterday, OBG and its subcontractors will be performing drilling and well installation activities in the vicinity of the Landfill beginning on November 28, and, pending approval by USEPA, down by Valley Stream in early December. These activities are expected to continue through December and January and into early February, with some breaks around the holidays and for any harsh weather. As part of this work, vehicles operated by OBG’s subcontractors and vendors will occasionally traverse Mead Road to access the Landfill and nearby drilling locations. Consistent with previous activities, large vehicle operations along Mead Road will be performed in accordance with the existing Traffic Management Plan.

Following approval by USEPA, the drilling at the location down near Valley Stream will be accessed via Curtis Hill Road. As we discussed, there isn’t a posted weight limit for this road or the culvert under Valley Stream. However, as you suggested, the drilling rig(s) used for this work will be unloaded from the trailer and driven over this culvert, rather than transported across the culvert on the trailer.

As for the prior drilling near Valley Stream, a weight exclusion permit from the Rensselaer County Highway Department will be obtained for overweight vehicles (if any) traversing Central Nassau Road (aka CR 16) associated with the upcoming drilling activities.

Wednesday, November 16, 2016 5:00:44 PM
Subject: EPA Update on Sampling of Treated Water from the Treatment Plant at the Dewey Loeffel Landfill Superfund Site Located in Nassau, Rensselaer County

The data from the sampling conducted on October 26, 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.  

Larisa W. Romanowski, Public Affairs Specialist, U.S. Environmental Protection Agency


The data from the sampling conducted on November 2, 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.  


Wednesday, November 9, 2016 5:53:09 PM
Subject: Dewey Loeffel Landfill Superfund Site: Drainageways Site Characterization Summary Report

Supervisor Fleming,

 

Attached is the draft Site Characterization Summary Report for the surface drainageways at the Dewey Loeffel Landfill Superfund site. Please note that it is a draft report, and remains under EPA review. The draft report includes the results of sampling conducted in the Valatie Kill, Nassau Lake, Tributary T11A and Valley Stream in late 2015, as well as a summary of previous investigations and remedial actions conducted in the surface drainageways. As Larisa indicated to you last week, we plan to provide an update to the community in the early 2017 timeframe. The update will consist of a general project update and will include a summary of the information presented in the draft Site Characterization Summary Report. We will be in touch soon regarding a date.

 

Click here for the Report.

 

Thank you.


EPA Loeffel Superfund Update - November 2, 2016 - 2:43pm

Just to clarify, the information that I conveyed to you should not be construed as a “system failure” as referred to in your email. As indicated in my email yesterday, water was recirculated within the treatment system following the failure of the metering pump, which occurred on 10/29, and the discharge was ceased until GE was able to restart the metering pump on 10/31. What I didn’t include in my message to you yesterday, and in response to your second question, is that when the metering pump stopped working, the system automatically entered alarm mode, as designed, resulting in the immediate recirculation of water and the cessation of the discharge to the Valatie Kill. 

In response to your first question, I was initially notified of the issue with the metering pump via email mid-day on Monday. I was in the field without email access at the time and did not see it until my return to the office later in the day. I was not able to get in touch with GE to find out more information until Tuesday morning, and subsequently shared the information with you later on Tuesday.


Dewey Loeffel Superfund Site EPA Update - November 1, 2016 - 4:18pm

The results of the sampling of the treated water from the plant conducted on October 12, 2016 and October 19, 2016 were received earlier today and will be posted on EPA’s Dewey Loeffel Landfill Superfund Site webpage shortly. For the October 12th treated effluent sample, 1,4-dioxane was not detected. The treated effluent result for 1,4-dioxane on October 19th was 0.023 J parts per billion (ppb). Over the past couple of weeks, the laboratory has been experiencing longer than usual turnaround times due to new reporting equipment. It is anticipated that we will soon get back to the normal turnaround time of approximately 2 weeks from the time of sample collection.

On October 29th, the metering pump that is used to add hydrogen peroxide to the HiPOx unit stopped working. GE and SI Group discontinued the discharge to the Valatie Kill and recirculated water within the system until they were able to restart the pump on October 31st. The existing metering pump was replaced with a spare earlier today as a precautionary measure and the treatment system has resumed normal system operations.


October 25, 2016
EPA Update - Subject: Dewey Loeffel Landfill Superfund Site: Recent and Upcoming Field Work


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 upcoming or recently completed site activities.

·         Landfill/Groundwater Investigation:

o   Near-continuous water level monitoring will continue for the three pairs of groundwater wells installed near Valley Stream. Monthly spot measurements will also be collected at the staff gauges and monitoring wells in the vicinity of Valley Stream. Some of these activities may be visible along Central Nassau Road and Curtis Hill Road.

o   As part of the investigation of vapor intrusion, the installation of three shallow groundwater monitoring wells was completed in August 2016. The three wells will be sampled once development activities are completed. One well was installed at a property along Central Nassau Road and two wells were installed at a property along Mead Road. Consistent with the approved investigation work plan, the results of the sampling of the shallow wells will be used to evaluate the potential for vapor intrusion.

·          Drainageways Investigation:

o   No field work expected in the next month.

·         Monitoring and Other Activities:

o   The next residential well monitoring event is scheduled for November 2016 and will include residential wells monitored on a quarterly, semi-annual or annual basis.

o   Water level measurements and groundwater chemistry samples will be collected from wells located both inside and outside of the landfill during the upcoming month.

o   The sampling of surface water from 14 locations within the Valatie Kill and Tributary T11A is conducted annually in 3 separate sampling events. The first of the three events was conducted in June, and the remaining two events will be completed later in 2016.


EPA Updates for September 22-October 5, 2016 on Loeffel Superfund Site

 

The data from the sampling conducted on September 21, 2016 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.

On September 22, both carbon filter units in the plant were replaced. The next sampling event, after the carbon filters were replaced, occurred on September 28. The September 28 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.  

 

The data from the sampling conducted on September 28, 2016 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.

 

The lab results from the sampling conducted on October 5, 2016 are forthcoming and will be provided 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.  


September 29, 2016
Subject: Dewey Loeffel Landfill Superfund Site: Surface Drainageways


As part of the phase 1 investigation of the surface drainageways at the Dewey Loeffel Landfill Superfund Site, General Electric (GE) collected sediment and soil samples from the Valatie Kill, Nassau Lake, Valley Stream and their associated floodplain areas. Within the next week or so, it is anticipated that GE will be mailing letters to the owners of properties where soil and/or sediment samples were collected. The letters will include the results of the sampling conducted on their property, as well as contact information for both EPA and GE representatives. Depending on their results, EPA will also be reaching out to some property owners to discuss their results further and answer any questions they may have. In the event that you receive any questions or concerns regarding the letters, please do not hesitate to share EPA’s contact information (below).

 

Shortly after letters are received by property owners, the draft Site Characterization Summary Report will be made available. This report includes a summary of existing data for the surface drainageways, including the data collected as part of the phase 1 drainageways investigation, as well as the identification of additional data needed in order to assess risks to human health and the environment and evaluate potential cleanup alternatives for the drainageways.

 

I will be in touch over the next couple of weeks. Feel free to contact me in the meantime should you have any questions.

 

EPA Contact Information

 

Joseph Battipaglia

Remedial Project Manager

Hudson River Field Office
187 Wolf Road, Suite 303
Albany, NY 12205


September 29, 2016
EPA UPDATE: Dewey Loeffel Landfill Superfund Site: Recent and Upcoming Field Work

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 upcoming or recently completed site activities.

·         Landfill/Groundwater Investigation:

o   As part of the investigation of vapor intrusion, the installation of three shallow groundwater monitoring wells was completed in August 2016 and the sampling of those wells is scheduled to be completed in the upcoming month. One well was installed at a property along Central Nassau Road and two wells were installed at a property along Mead Road. Consistent with the approved investigation work plan, the results of the sampling of the shallow wells will be used to evaluate the potential for vapor intrusion.

o   Three pairs of groundwater wells recently installed near Valley Stream were sampled in July 2016. The results of the sampling indicate that volatile organic compounds and 1,4-dioxane were not detected. To help inform the location of a future deep bedrock well to be installed in the vicinity of Valley Stream, several samples were also collected from an existing well located near Valley Stream in mid-September. Near-continuous water level monitoring will continue for the three pairs of groundwater wells. Monthly spot measurements will also be collected at the staff gauges and monitoring wells in the vicinity of Valley Stream. Some of these activities may be visible along Central Nassau Road and Curtis Hill Road.

·          Drainageways Investigation:

o   No field work expected in the next month.

·         Monitoring and Other Activities:

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

o   Water level measurements will be collected from wells located at the landfill during the upcoming month.

o   The annual fish sampling in the Valatie Kill, Tributary T11A and Nassau Lake was initiated in June 2016 and completed in July 2016.

o   The sampling of surface water from 14 locations within the Valatie Kill and Tributary T11A is conducted annually in 3 separate sampling events. The first of the three events was conducted in June, and the remaining two events are scheduled to be completed over the next two months.

 

 


EPA Update on Loeffel Superfund Site - September 22, 2016 through October 5, 2016

 

The data from the sampling conducted on September 21, 2016 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.

On September 22, both carbon filter units in the plant were replaced. The next sampling event, after the carbon filters were replaced, occurred on September 28. The September 28 results are expected next week.

 

The data from the sampling conducted on September 28, 2016 is now available on EPA’s Dewey Loeffel Landfill Superfund Site webpage.

The lab results from the sampling conducted on October 5, 2016 are forthcoming and will be provided 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.  


The September 2016 Project Update for the Dewey Loeffel Landfill Superfund Site is also available on EPA’s project webpage: https://semspub.epa.gov/src/collection/02/SC31269.

 

DEWEY LOEFFEL LANDFILL SUPERFUND SITE                                                                      

SEPTEMBER 2016 PROJECT UPDATE

WATER TREATMENT PLANT & NEW EXTRACTION WELLS

A 2012 agreement with GE and SI Group required the construction and operation of a water treatment plant at the Dewey Loeffel Landfill Superfund site, as well as the installation of five additional groundwater extraction wells along the western edge of the landfill. The water treatment plant has been constructed and operating since late 2013, and the five additional extraction wells were brought online between July and October 2015. The additional extraction wells are located closer to the landfill than three previously-installed wells, and serve to collect additional contaminated groundwater for treatment. Since the last of the five new extraction wells was brought online, the water treatment plant has been operating at a flow rate of approximately 6 gallons per minute. Regular weekly sampling of the treated water continues, and the results indicate that the plant continues to work effectively, and in compliance with the discharge limits that were established by the State of New York.

To ensure the maximum effectiveness of the treatment plant, the first carbon filter unit (known as the lead carbon filter) was last replaced on July 7, 2016 and both carbon filter units are scheduled to be replaced on September 22, 2016. Sampling data from the treated water at the plant is available on the EPA Dewey Loeffel site webpage: 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.  

REMEDIAL INVESTIGATION/FEASIBILITY STUDY (RI/FS): SURFACE DRAINAGEWAYS

EPA approved the Phase 1 Remedial Investigation Work Plan for the Drainageways in August 2015. The associated field work began in September 2015 and concluded in December 2015 following a delay due to weather conditions. The sampling activities included the collection and analysis of samples from the surface drainageways, including but not limited to the Valatie Kill, Nassau Lake and Valley Stream.

GE submitted the Site Characterization Summary Report in June 2016. This report includes a summary of existing data for the surface drainageways, including the data collected in 2015, as well as the identification of additional data needed in order to assess risks to human health and the environment and evaluate potential cleanup alternatives for the drainageways. Following EPA’s approval of the Site Characterization Summary Report, GE will submit a work plan detailing the steps necessary for the completion of the study of the drainageways (Phase 2).

REMEDIAL INVESTIGATION/FEASIBILITY STUDY (RI/FS): LANDFILL - GROUNDWATER

In October 2015, EPA approved the revised RI/FS Work Plan for the Landfill-Groundwater, which requires the investigation of groundwater, soil, and the landfill, including an assessment of the integrity of the existing slurry wall. The RI/FS Work Plan is available on the EPA’s Dewey Loeffel site webpage under “Additional Reports and Documents.”

The collection of shallow soil and groundwater samples, located both inside and outside of the landfill, began in July 2016 and was completed in August 2016. The results of this sampling will be used to guide the locations and depths of permanent shallow groundwater monitoring wells, which would be installed later in the investigation.

Three pairs of groundwater wells recently installed in the vicinity of Valley Stream were sampled in July 2016. An existing well located near Valley Stream is scheduled to be sampled in September 2016. The data collected from these wells will be used to determine the location of a deep groundwater well, which would be installed later in the investigation.

As part of an investigation of the potential for vapors to migrate from the subsurface into indoor air (referred to as “vapor intrusion”), three groundwater wells were installed in August 2016. The wells will be sampled in fall 2016 and the sampling results will be used to further evaluate whether the potential for vapor intrusion exists.

RESIDENTIAL WELL SAMPLING PROGRAM

Residential wells with individual treatment systems are sampled on a quarterly basis. Residential wells without treatment systems are either sampled on a semi-annual, annual or every-other-year basis depending on their location in relation to impacted groundwater areas, and location relative to the direction of groundwater flow. Residential wells monitored on a quarterly basis were sampled in August 2016 and the results will be distributed by GE and SI Group following their receipt from the laboratory. The current schedule for the next sampling event is as follows: wells sampled quarterly (November 2016); wells sampled semi-annually (November 2016); wells sampled annually (November 2016); wells sampled every-other-year (fall 2017). Upcoming sampling events are subject to change based on the resident’s availability.

FISH MONITORING

Annual fish sampling in the Valatie Kill and Nassau Lake was completed in June and July 2016. A report summarizing the results of the 2016 fish sampling will be submitted to EPA after the analytical results are received from the laboratory.  The report summarizing the results of the 2015 fish sampling (2015 Biological Monitoring Data Summary Report) is available on the EPA’s Dewey Loeffel webpage under “Additional Reports and Documents.”

SURFACE WATER MONITORING

Surface water from the Valatie Kill and Tributary T11A is sampled annually on three occasions during the summer and fall. The first of the three 2016 sampling events was conducted in June 2016, and the remaining two events are scheduled to be completed during the next quarter.

SAMPLING OF VALATIE KILL IN VILLAGE OF NASSAU

In 2014, the EPA collected surface water and sediment samples in the Valatie Kill in the vicinity of the Dewey Loeffel site, in the Valatie Kill between Nassau Lake and Kinderhook Lake, and in Kinderhook Lake. In response to a request from the Village of Nassau, the EPA collected several additional surface water and sediment samples from the Valatie Kill in April 2016 and July 2016. The results of the 2016 sampling are now available and have been posted on the EPA’s Dewey Loeffel site webpage under “Additional Reports and Documents, along with a figure showing the sampling locations.  

 

For more information about the Dewey Loeffel Landfill Superfund Site, contact:


 

Joseph Battipaglia

Remedial Project Manager

Hudson River Field Office
187 Wolf Road, Suite 303
Albany, NY 12205

(518) 407-0400

battipaglia.joseph@epa.gov

 

Larisa Romanowski
Community Involvement Coordinator
Hudson River Field Office
187 Wolf Road, Suite 303
Albany, NY 12205

(518) 407-0400
romanowski.larisa@epa.gov


 

www.epa.gov/superfund/dewey-loeffel-landfill


EPA Update on Loeffel Superfund Site:  August 16, 2016
 

The data from the sampling conducted on August 3, 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 Discharge Update on the Loeffel Superfund Site: August 9, 2016
 
The data from the sampling conducted on July 27, 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 Field Work Update - July 26, 2016
 

Supervisor Fleming and Superintendent McCagg,

 

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   The collection of discrete-interval soil and groundwater samples both inside and outside of the landfill began in mid-July and is expected to continue into August. Consistent with the approach in the approved investigation work plan, the sampling locations for this work are based upon the results of the direct-sensing investigation completed in April 2016. The discrete-interval soil and groundwater sampling may be visible from Mead Road both inside the landfill and on adjacent properties.

o   The sampling of three pairs of groundwater wells near Valley Stream was completed in mid-July. The data from the sampling of these three well pairs will be used to determine the location of a deep bedrock well to be installed in the vicinity of Valley Stream in the future. Near-continuous water level monitoring will continue for the three pairs of groundwater wells. Monthly spot measurements will also be collected at the staff gauges and monitoring wells in the vicinity of Valley Stream. Some of these activities may be visible along Central Nassau Road and Curtis Hill Road.

o   The installation of three shallow groundwater monitoring wells is scheduled to begin at two properties in mid-August. One well will be installed at a property along Central Nassau Road and two wells will be installed at a property along Mead Road. A private utility mark-out will also be performed in advance of the well installation to locate underground utilities and structures at the planned locations of the monitoring wells. These activities may be visible along Central Nassau Road and Mead Road. Consistent with the approved investigation work plan, the results of the sampling of the shallow wells will be used to evaluate the potential for vapor intrusion.

·          Drainageways Investigation:

o   No field work expected in the next month.

·         Monitoring and Other Activities:

o   For residential wells monitored on a quarterly or semi-annual basis, sampling was completed in <

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)