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Twelfth Phase V Cover Letter draftApril 2, 2009 Ms. Teri Anderson CITY OF NORTHAMPTON MAYOR’S OFFICE OF ECONOMIC DEVELOPMENT Room 12 EMAIL DELIVERY 210 Main Street TAnderson@northamptonma.gov Northampton, MA 01060 (413) 587-1249 RE: Former Staab’s Service Station/Pleasant Street Cleanup 459, 480 & 492 Pleasant Street, Northampton DEP Site No. 1-0705, RFA 09092 Dear Ms. Anderson: I have attached a digital copy of our twelfth Phase V Status Report, Remedial Monitoring Report and Remedy Operation Status Submittal for the remediation of the gasoline contamination at the former Staab’s Service Station located along Pleasant Street (Route 5) in Northampton (“the site”). The report was electronically submitted to the Department of Environmental Protection (“the DEP”) on April 2, 2009. As of January 1, 2009, our bi-annual reports must be submitted to the DEP electronically. This was the first electronic submission for the site. Digital copies have been provided to everyone that was sent copies of this letter. If anyone would prefer a hardcopy, please call me. The report was prepared for the period from September 1, 2008 to February 28, 2009. It describes the extension of the treatment systems across Route 5; the operation and maintenance of the treatment systems; the sampling of the soil and groundwater; and the installation of an anti-foaming system. Currently there are no Imminent Hazards or Conditions of Substantial Release Migration at the site. Therefore a Remedial Monitoring Report is only due every six months in accordance with the most current, December 14, 2008 versions of 310 CMR 40.0027 and 40.0892. On May 15, 2003, we submitted a combined Phase III Remedial Action Plan and Phase IV Remedy Implementation Plan to the DEP in which we proposed the installation of groundwater and soil treatment systems on the properties located at 459, 480, and 492 Pleasant Street for purposes of cleaning up contamination under Pleasant Street. The site had been assessed since June 1984 when tanks were removed from 459 Pleasant Street. Free-phase gasoline had been measured floating on the groundwater up to one foot thick. No substantial remediation had ever been conducted at the site. In June 2003, we installed only the portions of the systems located at 459 Pleasant Street because we were unable to locate the product pipes that reportedly crossed Route 5. On June 25, 2003, we began operating the groundwater treatment system at 459 Pleasant Street. On September 9, 2003, we began operating the soil vapor extraction system at 459 Pleasant Street. On September 15, 2003, we submitted a combined Final Inspection Report and a Phase IV Completion Statement to the DEP for the installation of the portion of the treatment systems at 459 Pleasant Street. As a result, the site achieved Phase V status. The two systems were operated continuously until June 30, 2006 with shutdowns for maintenance, high groundwater, and low groundwater. We treated a total of 2,214,239 gallons of groundwater and recovered 729 gallons of gasoline that was recycled off-site. Significant gasoline remained under Route 5 that could not be effectively removed by the treatment systems at 459 Pleasant Street. We had determined that a majority of the gasoline contamination remained under the adjacent section of Route 5 which is owned by the Commonwealth of Massachusetts and controlled by the Massachusetts Highway Department (MHD). In December 2005, the MHD applied for a Brownfields Grant from the Environmental Protection Agency (EPA). On May 12, 2006, we were notified that the EPA awarded a $200,000 grant to MHD On March 4, 2008, we were notified that the MHD had entered into an agreement with the City of Northampton to administer the grant. On September 5, 2008, the City entered into a contract with Penney Engineering to extend the treatment systems across Route 5 and operate the systems for 11 months. In November 2008, we were able to run new pipes across Route 5 and complete the installation of the the new treatment systems at 480 and 492 Pleasant Street in order to remediate the gasoline contamination under Route 5. The treatment systems have been designed to adequately remediate the gasoline contamination in the soil and groundwater at the site over time in order to achieve a permanent solution. The systems shall be operated in accordance with 310 CMR 40.0891 and all applicable permits, approvals and licenses. The operation and maintenance of the completed treatment systems is now considered a Comprehensive Remedial Action by the DEP. We have met the requirements of Remedy Operation Status in accordance with 310 CMR 40.0893. The attached document includes an As-Built Plan, a Final Inspection Report, a Phase IV Completion Statement for the installation of the entire treatment systems and a Remedy Operation Status Opinion in order to achieve Remedy Operation Status. By achieving Remedy Operation Status the deadline to achieve a Response Action Outcome within five years is suspended, the subsequent annual compliance fees are reduced from $2,000 to $800, and the need to annually extend the Tier II classification is eliminated. The first four sections of the attached Phase V Status Report, Remedial Monitoring Report, and Remedy Operation Status Submittal summarize our previous findings. Section 5.0 describes the initial installation of a portion of the treatment systems and the recent extension of the groundwater and soil treatment systems across Route 5. Section 6.0 describes the operation, maintenance and monitoring of the treatment systems for the most recent period from September 1, 2008 to February 28, 2009. Section 7.0 discusses Remedy Operation Status. Section 8.0 describes the public notification process. A Locus Map; a March 5, 2009 BWSC Site Scoring Map; sixteen tables of results; five figures showing the groundwater contours and the extent of the contamination; a Sampling Plan; photographs of the recent installation; four charts showing the gasoline recovered during the prior regeneration of the vapor phase carbon; four charts showing the historical results for the influent, MW-9, MW-10, and MW-12; and a regression chart showing a plot of the ratio of gasoline recovered to the duration of system operation are included in the Figures section. Appendix A includes a completed Comprehensive Response Action Transmittal Form (BWSC-108), two CRA Remedial Monitoring Reports, a Notice of Environmental Sampling (BWSC-123), and copies of the current Fire Department permit to store flammable liquids, the October 6, 2008 Massachusetts Highway Department permit to cross Route 5, the October 21, 2008 Trench Permit from the City of Northampton, the November 1, 2008 Right of Entry Authorization from the owners of the properties at 480 and 492 Pleasant Street and the Electrical Permit received on December 13, 2008. Appendix B includes copies of our monitoring logs that have been completed from December 15, 2008 to March 1, 2009. Appendix C includes copies of our Monitoring Well Sampling Logs and the laboratory analysis reports for the groundwater samples collected on September 18, 2008, February 13, and February 28, 2009. Appendix D includes a copy of the laboratory analysis report for the soil samples collected on November 5, 2008 during the installation of Recovery Well RW-2 at 480 Pleasant Street. A full size, as-built Remedial Action Site Plan is included in the rear of the document. All the documents have been converted to Adobe PDF format and combined into one file. They are presented in the order listed in the Table of Contents at the beginning of the report with one exception. The signed and certified DEP form BWSC-108 is presented as a “thumbnail” on the left side of the document due to the security parameters added to the form by the DEP after they receive it. The form has been certified by Mr. Kalish and me. Copies of the laboratory analysis reports for all the samples collected from 480 and 492 Pleasant Street, along with the DEP transmittal form, are included in the attached document. As of December 14, 2007, 310 CMR 40.1403(10)(b)(1) requires us to notify the owners of other properties where we intend to sample and provide them with copies of the analysis reports. By this letter and attached document we are providing all our results to Quickbeam Realty Trust as the owner of the properties at 480 and 492 Pleasant Street. Please call me if you have any questions or comments. Again, thank you for all your assistance with remediating this very old site. Yours truly, Ralph P. Penney, PE, LSP President Attachment ecc: (w/attachment) James Byrne – EPA Region One Richard Masse – Mass Highway District Two Robert P. Kalish – Robert P. Kalish, Inc Matthew M. Pitoniak – Quickbeam Realty Trust Michael Scherer - DEP Ms. Teri Anderson April 2, 2009 Page 2 PENNEY ENGINEERING, INC PENNEY ENGINEERING, INC Environmental/Civil Engineers & Scientists 125 High Street, Mansfield, MA 02048 (508) 261-1288 FAX (508) 261-1208 web: www.PenneyEngineering.com email: sales@PenneyEngineering.com