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70-92 Boston Street - Supplemental Site Investigation Summary Report and Appendix A - November 2005 rac Customer-Focused Solutions SUPPLEMENTAL SITE INVESTIGATION SUMMARY REPORT FORMER FLYNNTAN MANUFACTUPJIN G COMPANY SITE 70-92 BOSTON STREET SALEM, MASSACHUSETTS MADEP RTN 3-24618 IRA Status Report No. 2 Prepared for: City of Salem Salem,Massachusetts Prepared by: TRC Environmental Corporation Boott Mills South 116 John Street Lowell,Massachusetts 01852 (978)970-5600 November 2005 x LETTER OF TRANSMITTAL N O V 0 7 Z 005 aoap6auan0 DEPT.O a1aOBaua09a0a0QaaaaOa00000 %I ilti�rynlsl`iT(D1-'';;-L0Pis11EN T a a ""77...---..- Boott Mills South- 116 John Street Lowell, Massachusetts 01852 Tel. No: (978) 970-5600 Fax No: (978)453-1995 NOVEMBER 4f 2005 SEND TO: Lynn Duncan Director Planning&Community Development City of Salem City Hall Annex 120 Washington Street—3`d Floor Salem, Massachusetts 01970 SuBJEcr: Supplemental Site Investigation Summary Report(IRA Status Report No. 2) Former Flynntan Site - 70-92 Boston Street Salem, Massachusetts 01970 REMARKS: • Enclosed please find one (1)copy of the above referenced report for supplemental &IRA work conducted at the former Flynntan site located at 70—92 Boston Street in Salem, Massachusetts. If you have any questions please contact)] Calla ect Manager at(978) 656-3645. CC: Carlie Brandt- EPA TRC Environmental Corp. file LETTER OF TRANSMITTAL TRC noeea°°uua°tl uea °�� p��a°a°aaeea°do°a° Boott Mills South - Foot of John Street Lowell, Massachusetts 01852 Tel. No: (978) 970-5600 Fax No: (978)453-1995 NOVEMBER 4, 2005 SEND TO: Massachusetts Department of Environmental Protection Bureau of Waste Site Cleanup Northeast Regional Office One Winter Street Boston,Massachusetts 02108 SUBJECT: Immediate Response Action Status Report No. 2 Former Flynntan Site 70-92 Boston Street Salem, Massachusetts 01970 RTN 3-24618 REMARKS: • Enclosed please find one original copy of the Immediate Response Action Status Report No. 2 for the former Flynntan site located at 70—92 Boston Street in Salem, Massachusetts. If you have any questions please contact JJ Callahan, Project Manager at(978) 656-3645. CC: Lynn Duncan —City of Salem TRC Environmental Corp. file i SUPPLEMENTAL SITE INVESTIGATION SUMMARY REPORT FORMER FLYNNTAN MANUFACTURING COMPANY SITE 70-92 BOSTON STREET SALEM, MASSACHUSETTS MADEP RTN 3-24618 IRA Status Report No. 2 Prepared for: City of Salem Salem, Massachusetts Prepared by: TRC Environmental Corporation Boott Mills South 116 John Street Lowell, Massachusetts 01852" (978) 970-5600 November 2005 i EXECUTIVE SUMMARY TRC Environmental Corporation("TRC") has performed a' supplemental site investigation at the former Flynntan Manufacturing Company site located at 70-92 Boston Street in Salem, Massachusetts (the "Site"). TRC performed this supplemental Site investigation on behalf of the City of Salem(the"City"), as part of the City's Brownfields Pilot Program funded by a grant from the United States Environmental Protection Agency("EPA"). This supplemental Site investigation was conducted to further characterize Site conditions discovered during the initial subsurface Site investigation conducted in November 2004. A scope of work for TRC's additional Site investigation activities was set forth in the EPA-approved Quality Assurance Project Plan, Addendum C ("QAPP'), dated June 2, 2005. This supplemental Site investigation was also conducted as part of a Massachusetts Contingency Plan("MCP") Immediate Response Action("IRA") to evaluate the extent of light non-aqueous phase liquid ("LNAPL") detected in well MW-1, which was installed during the initial Site investigation. The detection of LNAPL in MW-1 triggered a 72-hour release.notification requirement under the MCP. The City of Salem notified the Massachusetts Department of Environmental Protection("MADEP") on December 30, 2004 and the Site was assigned Release Tracking Number("RTN") 3-24618. On February 28, 2005, the City submitted an IRA Plan to the MADEP to assess the extent of the LNAPL in the area of MW-1. In addition, the City submitted the first IRA Status Report for this release to the NL DEP on May 9, 2005. This Supplemental Site Investigation Summary Report is intended to also meet the requirements for an IRA Status Report pursuant to the MCP. Supplemental Site investigation activities included a soil boring program conducted using GeoProbe direct-push drilling technology and a limited test pitting investigation in order to confirm the presence of suspect underground storage tanks ("USTs"). Drilling efforts included installation of thirteen(13) soil borings with the completion of seven(7) of the borings as groundwater monitoring wells. The drilling program was subsequently followed by the collection of groundwater samples from the newly installed wells. As a result of the above- referenced additional investigation, the following was observed by TRC: • The Site is underlain by layers of fine to coarse sand and fine to medium gravel fill material including limited amounts of anthropogenic (brick, concrete,wood, ash) material. Refusal occurred due.to buried debris likely from a former on-Site building in the northern portion of the Site, in the area west of previously installed soil boring SB-1/MW-1. Nine(9)attempts were conducted to install proposed soil boring/monitoring well B-103/MW-103 in this area and refusal was encountered at approximately one foot below existing ground surface ("bgs"). Thus proposed soil boring/monitoring well B-103/MW-103 was not installed. ' • Depth to groundwater at the Site and within the immediate vicinity, as measured by TRC on October 11, 2005, ranged from approximately 8.8 feet bgs on the western side of Goodhue Street in MW-107 to approximately 36.7 feet bgs on the northwestern portion of the Site in MW-105. Based on the groundwater elevation survey performed by TRC personnel, groundwater appears to flow to the east-northeast. t L.2005487 ES-1 r • One(1) approximately 20,000-gallon No. 6 fuel oil containing UST was located in the northwestern portion of the Site during test pitting activities. Based on field measurements conducted by TRC personnel and based on the tank's geometry, approximately 3,000 to 4,000 gallons of oil and water remain in the UST. • Benzo(a)anthracene, benzo(a)pyrene,benzo(b)fluoranthene, and indeno(1,2,3-cd)pyrene were detected at concentrations exceeding their respective Massachusetts Contingency Plan ("MCP") S71/GW-2 or S-1/GW-3 standards in the field duplicate of soil sample B-101. Soil boring B-101 was installed on the western side of Goodhue Street. The detection of these compounds in soil in MW-101 does not appear to be related to the release of LNAPL detected in on-Site well MW-L. No other EPH or other analyzed constituents were detected in excess of their respective MCP Method 1 S-1/GW-2 or S-1/GW-3 standards in Site or immediate vicinity soil samples.collected during this supplemental investigation. • LNAPL was detected at MW-1 as well as in the newly installed MW-105, located immediately adjacent to the potential source,the 20,000-gallon No. 6 fuel oil UST. LNAPL was not detected in wells MW-101 and MW108 installed in Goodhue Street to the northeast of on-Site well MW-1. Based on this information, LNAPL does not appear to'be migrating from the property.to downgradient locations. TRC recommends that the 20,000-gallon No. 6 fuel oil UST be emptied of its contents, decontaminated and removed and disposed off-Site under local and state regulations. UST decommissioning activities should be conducted, specifically, under the April 9, 1996 MADEP Policy#WSC-402-96 (Commonwealth of Massachusetts Underground Storage Tank Closure Assessment Manual). TRC also recommends that groundwater monitoring wells MW-1,MW-101,MW-102,MW-104, MW-105 and MW-108 be monitored monthly to observe levels and/or migration of LNAPL. Based on the groundwater elevation contours developed as part of this supplemental investigation, an additional two (2) groundwater monitoring wells should be installed within Goodhue Street, immediately east of MW-1 in an effort to further evaluate the potential for off- Site migration of LNAPL.. Due to prior Site filling practices and difficult sloping terrain, TRC recommends that additional test pitting/trenching be conducted with track-mounted heavy excavation equipment in order to evaluate the presumed migration path of LNAPL from the on-Site 20,000-gallon UST. According to the City, the proposed future end use of the Site is unclear at this time. Any future Site redevelopment plans must include provisions for the management of Site.soils and remedial measures to address Site LNAPL under the rules and regulations stipulated in the MCP. A Phase I Initial Site Investigation Report and Tier Classification for the Site is required to be submitted to the MADEP by December 28, 2005 in accordance with Section 310 CMR 40.0403(3) of the MCP. L2005-487 ES-2 I TABLE OF CONTENTS EXECUTIVESUMMARY ...................................................................................................... ES-1 1.0 INTRODUCTION........................................................................................................... 1-1 I.I. Objective...................................................................................................................... 1-1 1.2. Background..................... ..... .... ........................................................................ 1-1 1.3. Potential Source Areas................................................................................................. 1-5 2.0 TECHNICAL APPROACH.............................................................................................2-1 2.1 Soil Boring Program .............2-1 2.2 IRA Assessment Activities Status ...............................................................................2-5 2.2.1 Site Description....................................................................................................2-5 2.2.2 Release Description.......................................................................:.....................2-6 2.2.3 Summary of IRA Activities.................................................................................2-6 2.2.4 Management of Remediation Wastes..................................................................2-7 ! 2.2.5 Federal, State and Local Permits .....................2-7 2.2.6 Future IRA Activities...........................................................................................2-7 2.3 Groundwater Sampling................................................................................................2-7 2.4 Location and Elevation Survey....................................................................................2-8 2.5 MCP Reporting Requirements.....................................................................................2-8 3.0 RESULTS OF INVESTIGATION..................................................................................3-1 3.1 Subsurface Conditions.................................................................................................3-1. 3.2 Nature and Extent of Contamination...........................................................................3-2 3.2.1 Soil.......................................................................................................................3-2 3.2.2 Groundwater ........................................................................................................3-8 . 3.3 Data Usability Assessment..........................................................................................3-8 4.0 CONCLUSIONS...............................................................................................................4-1 5..0 RECOMMENDATIONS...................................................................................................5-1 TABLES Table 1-1: Potential Contaminant Source Area.......................................................................... 1-5 Table 2-1: Summary of Samples Collected and Chemical Analytical Parameters.....................2-3 Table 3-1: Monitoring Well Construction/Groundwater Elevation Data Table 3-2: Soil Analytical Results..............................................................................................3-4 Table 3-3: Groundwater Analytical Results .........3-9 ...................................................................... L2005-487 I November2005 i FIGURES Figure1-1: Site Location Map................................................................................................ 1-2 Figure1-2: Site Plan............................................................................................................... 1-3 Figure 2-1: Boring and Monitoring Well Sampling Location Plan........................................2-2 Figure 3-1: Groundwater Elevation Contours for Sampled Monitoring Wells......................3-3 APPENDICES Appendix A Soil Boring Logs and Well Construction Diagrams Appendix B Immediate Response Action Transmittal Form Appendix C Test Pit Boring Logs Appendix D Analytical Data Reports Appendix E Data Usability Assessment L2005-487 u. November 2005 1.0 INTRODUCTION 1.1. Objective TRC Environmental Corporation("TRC") has performed a supplemental site investigation at the :former Flynntan Manufacturing Company Site located at 70-92 Boston Street in Salem, Massachusetts (the"Site"). TRC performed this supplemental Ste investigation on behalf of the City of Salem(the"City"), as part of the City's Brownfields Pilot Program funded by a grant from the United States Environmental Protection Agency("EPA"). This supplemental Site investigation was conducted to further characterize Site conditions discovered during the initial subsurface Site investigation conducted in November 2004. A scope of work for TRC's additional Site investigation activities was set forth in the EPA-approved Revised Quality Assurance Project Plan, Addendum C ("QAPP"), dated June 2, 2005. This supplemental Site investigation was also conducted as part of a Massachusetts Contingency Plan("MCP") Immediate Response Action("IRA") to evaluate the extent of light non-aqueous phase liquid("LNAPL") detected in well MW-1, which was installed during the initial Site investigation. The detection of LNAPL in MW-1 triggered a 72-hour release notification requirement under the MCP. The City of Salem notified the Massachusetts Department of Environmental Protection("MADEP") on December 30, 2004 and the Site was assigned Release Tracking Number("RTN") 3-24618. On February 28, 2005, the City submitted an IRA Plan to the MADEP to assess the extent of the LNAPL in the area of MW-1. In addition, the City submitted the first IRA Status Report for this release to the MADEP on May 9, 2005. This Supplemental Site Investigation Summary Report is intended to also meet the requirements for an IRA Status Report pursuant to the MCP. 1.2. Background Figure 1-1 shows the location of the Site in Salem, Massachusetts. Figure 1-2 ("Site Plan") depicts the Site layout including general features. The Site is currently owned by the City of Salem. The Site is approximately 1.9 acres in size and is bordered to the north and east by Goodhue Street, to the south and west by Boston Street and residential property to the northwest. Commercial property(auto body shop and Dunkin' Donuts abuts the Site to the southeast. The Site currently contains four separate, vacant buildings, three of which are enclosed by fences with locking gates, and the fourth securely. locked. Available records indicate the site was historically occupied by commercial and manufacturing operations from prior to 1900 until approximately 1999. Flynn and Sons operated a leather tannery on Site from approximately 1922 until approximately 1988. Based on an interview.with Thomas St. Pierre of the City of Salem Public Property Department during the preparation of an October 2001 Phase I Environmental Site Assessment("ESA")by TRC, "small commercial operations"reportedly were conducted on the property until 1999, including a small metals recycling business. . Site buildings include the main factory building("Main Building), the main factory storage building annex("Storage Building Annex"), an additional storage building("Storage Building"), L2005-487 1-1 November 2005 •C =- • �. t "i.... •i ::<f olf G-ours '-- �_�,�y .._. ,G�,, '' 7�: �'- ,�;- � r• �• �,�,p] '� � 5 '�, (\\may 4 — _! i „ yh•ate T •a' F?.: �� �-""'k l _ �•' ��'_ rJ` ,i � ��[ tl ter.-�Lt t � f '��.5 - { �.` � �•4•••mayL, Y :- - e"`fi�' '�"• - .:} to. _�� - � _ s:s:'ti' •'~� -- � � p�� 1• r ,2�^q.� is - -R i ■ � ■ � d 4 IF f 3 1 it `► t '���1 ff ht €_ F i, � �s + j8(�S ' .� *�ti-:,�.. ,,fit •° _ ''`—"{�- �40,P01 .�, � i� � tits � -• _03Lff era f rrp � ," ;�,..,., tit,�t sd � `.. � f t1. � ,•€. � 9T � our pit • • (`1. ,: z` r f ;\ -f � I 1! � �� �� �j 1. • 1 _ - :`� �t �- .i _ t •J LC e:i'. d,'';, ..� >>k� :� mil! �,�.. .��^,�.-�.. _�>:� .� ;>` ;...�.s�:�� � ..>,...�•r. BASE MAP IS A PORTION OF THE FOLLOWING 7.5'X 15'USGS TOPOGRAPHIC QUADRANGLES: SALEM,MA,1985 FORMER FLYNNTAN SITE 70-92 BOSTON STREET SALEM,MASSACHUSETTS 0 1000 2000 3000 " SITE LOCATION MAP Boott Mills South me Lowell, John Street scale in feet QUADRANGLE sia-si �� Z FIGURE LOCATION DRAWN:MAN SCALE AS SHOWN 28M7/FORMER FLYNNfMPO CHECKED,ISH Date 03/2S/05 APPROXIMATE l LOCATION OF LEGEND FORMER SITE BUILDING ■—■ ■� SITE BOUNDARY • (DEMOLISHED AND ---------------- -- PARKING AREA BOUNDARY FILLED LATE 1990s) — X— x— x— FENCE • e-101/Mw-101 � S T E 1, "� C I_____�_= SUBSURFACE STRUCTURES RESIDENTIAL �-7� \ B-108/Mw-1o8 w e MONITORING WELL (ORIGIN UNKNOWN) VACANT S INSTALLED PRIOR TO 1990 FENCE ,�, BUILDING sB- 6-1 MONITORING WELL (TRC, NOV 2004) B-108/MW-108 V . Z MONITORING WELL (TRC, JUNE 2005) SOIL BORING TRC NOV 2004 L ENTRANCE a-110 SOIL BORING (TRC, JUNE 2005) At N STORAGE,\ �s UILOI�YC3%.`� el'r GEOPHYSICAL (GPR) SURVEY AREA (TRC, 2004) \ Mw s/� rP-3 CATCH BASIN ® TEST PIT (TRC, JUNE 2005) �• MONITORING WELL APPROXIMATE LOCATION OF (� \ OBSERVED STAINED SOIL 20,000 GALLON \ i SINGLE CAR GARAGE N0. 6 FUEL OIL UST �`� -9/Mw-9`.\\ '� iB-107/MW-107 � � / SECONDARY/ BULLI�IW ��^ ti >T FILL/VENT PIPE O ENTRANCES `:. ' - COMMERCIAL j FREIGHT ```fie l�s > 8-112 NN y� / ELEVATOR � , t,; \ STORAGE ss-3/Mw-3 (PUBLIC STORAGE FACILITY) MAIN \���. SB-s BUILDING E ' , `ENTRANCE � -111 ANNEX G1� 11 y SS-2/MW-2 v n FORMER a-113 0 1 f o I ` WASHTANK �� O o ' SECONDARY ✓/ SB-10 9GJU, ' �G . /� ENTRANCE \�t L/VENT PIPE A pmC� �1 Cv`V t LOADING DOCK ASPHALT . • 0. r, COMMERCIAL ' �` PUBLIC STORAGE FACILITY \ COVERED s� ( ) t PARKING f- \• y0 AREA B-110 CL 190 CL , S Qj F7i] • DUNKIN' 1 9� ST DONUTS Z FORMER FLYNNTAN SITE 70-92 BOSTON STREET D 30' so' SALEM, MASSAC H U S ETTS APPROXIMATE SCALE IN FEET SITE PLAN h it t0 Mills elT c a1 IOwe Street 11, Massachus etts 01952 FIGURE (97a) 870-5600 DRAWN BY: RWB 1 —2 CHECKED BY: JSH GATE: 10/25/05 and a 4-car garage. The main entrance to the Site is located on Boston Street. Parking areas and secondary entrances are located on the northwest, southeast and the northeast portions of the Site. North of the Main Building is a built-up vegetated area reportedly filled with materials generated from the demolition of a former Site building located in the immediate vicinity. The building was reportedly demolished in the 1990s. No additional information was available regarding the building demolition. The area surrounding the Site is comprised primarily of commercial and residential properties. ' The North River, an inlet to Salem Harbor, is located approximately%2 mile northeast of the Site. Strongwater Brook, a feeder canal to the North River, runs east to west approximately 500 feet north of the Site. Salem's downtown center is located approximately 3/4 mile east of the Site. The nearest Site sensitive receptors are adjacent residential dwellings located northwest of the property. Due to the Site's prime location,the City of Salem plans to redevelop the Flynntan property with new buildings consisting of mixed-use residential and retail spaces that will serve as part of a revitalized corridor representing the"entrance"to the City. On November 17 and 18, 2004, TRC performed an initial Site subsurface investigation,which included the installation of ten(10) soil borings via Geoprobe®direct push drilling technology. Six(6) of the soil boring were converted into I"-diameter polyvinyl chloride("PVC") .groundwater monitoring wells. On December 28 and 29, 2004, TRC returned to the Site to collect groundwater samples and discovered approximately 1.5 feet of LNAPL on top of the groundwater surface in monitoring well MW-1, located on the eastern side of the Site, north of the Storage Building. As required by the MCP (310 CMR 40.0300), the City notified the MADEP of the separate phase hydrocarbon in MW-1 on December 30, 2004. The MADEP assigned the Site RTN 3-24618 for the release. As a result of the LNAPL discovery and subsequent reporting to the MADEP,the City was required to prepare an IRA Plan. The IRA Plan was prepared and submitted to the MADEP on February 28, 2005 and included assessment tasks designed to evaluate the source and extent of the LNAPL detected in MW-I. Exceedances in MADEP Reportable Concentrations ("RCs")were also discovered in Site soil and groundwater samples collected during the initial November 2004 Site investigation,which also required reporting to the MADEP. Tasks performed as part of this supplemental Site investigation were designed to fin-ther assess both the exceedances of hazardous constituents discovered in Site soil and groundwater during the initial Site investigation as well as the IRA condition. ; L,2005-487 14 November 2005 a 1.3. Potential Source Areas Table 1-1 presents a list of potential contaminant source areas that were identified at the Site. These source areas were identified in TRC's May 2005 "Site Investigation Summary Report" and were based on our findings from field efforts conducted at the Site including a ground penetrating radar("GPR"), hazardous materials survey, review of previously unavailable EPA Site records and the November 2004 installation of soil borings and groundwater monitoring wells, with groundwater samples being collected in December 2004. Potential source areas generated as a result of the initial Site investigation are provided below: Table 1-1: Potential Contaminant Source Area Potential Potential Source Area Location/Description Media Contaminants of Concern In acted Tannery and leather Previous Site manufacturing operations on Soil industrial uses Site(1922-1988). Metals . Groundwater VOCs,VPH,EPH,PCBs,Metals recycling business and mixed commercial uses 1988-1999. Filled areas Former Site building area. Soil,Groundwater VPH,EPH,Metals Western portion of Site,loading dock on south side of main USTs building, and east of storage Soil, VPH, EPH,Metals building annex. Contents,tank Groundwater condition and size, all required further evaluation. 9 LNAPL Eastern portion of Site—MW-1; Groundwater VPH, EPH need to evaluate source&extent t • Empty drums located in several Drums areas around the Site;potential Soil, PCBs for past leaking of wastes or Groundwater chemicals. Impacts due to potential discharges from belowground Site structures,including USTs, Groundwater sumps, and drainage conduits. Groundwater VOCs,VPH,Metals Exceedances detected during initial Site investigation. 4 .VPH — Volatile Petroleum Hydrocarbons EPH — Extractable Petroleum Hydrocarbons VOCs — Volatile Organic Compounds PCBs — Polychlorinated Biphenyls USTs — Underground Storage Tanks LNAPL — Light Non-Aqueous Phase Liquid L2005-487 1-5 November 2005 2.0 TECHNICAL APPROACH This section describes the activities performed as part of this project and include investigative field work to address the Site IRA condition. Unless otherwise specified, all work was performed in accordance with the EPA-approved QAPP Addendum C (dated June 2, 2005) for the City of Salem Brownfields Pilot Program and the February 25, 2005 IRA Plan. 2.1 Soil Boring Program TRC's soil boring program was performed on June 14 and 15, 2005. Figure 2-1 shows the locations of the soil borings that were advanced during this project. Table 2-1 lists the samples that were submitted for laboratory analysis. Appendix A contains the soil boring logs and groundwater monitoring well construction diagrams. The program consisted of the placement of thirteen soil borings advanced via Geoprobe®direct- push drilling technology with seven(7) of the borings converted to groundwater monitoring wells. Excluding groundwater monitoring well("MW") MW-105, groundwater monitoring wells were constructed with two-inch diameter polyvinyl chloride ("PVC") 0.010-slot screen and riser. MW-105 was constructed using one-inch diameter PVC materials. Borings were completed to depths ranging from approximately 5 feet bgs to approximately 37 feet bgs. For each soil boring, continuous five-foot acetate-lined cores were collected from the ground surface to the groundwater interface or refusal, whichever was reached first. Soil samples were screened in the field for the presence of volatile organic compounds ("VOCs") using a RAE Systems MutliRAE Plus multi-gas meter equipped with a photoionization detector("PID"). Samples exhibiting elevated PID readings as well as other field indications (visual and olfactory) of contamination were submitted to a Commonwealth of Massachusetts-certified analytical ;laboratory for environmental testing as set forth in the project QAPP (Addendum Q. PID readings are provided on the soil boring logs presented in Appendix A. Soil samples as well as Site worker breathing zones were also periodically monitored for hydrogen sulfide. Hydrogen sulfide concentrations were not detected during the soil boring program. The proposed soil boring and groundwater monitoring well to be installed as 13-103/MW-103 was not completed due to refusal at approximately one feet bgs at nine(9) locations. In addition, the locations for soil borings B-104 and B-106 were adjusted due to push refusal at their originally proposed locations. Table 2-1 presents a list of soil samples collected as well as the chemical analyses performed on each sample. L.2005=487 2-1 November 2005 — APPROXIMATE LE G E N D LOCATION OF FORMER SITE BUILDING(DEMOLISHED AND SITE BOUNDARY �■��■�■ • FILLED LATE 1990s) ------------------- PARKING AREA BOUNDARY x-- *— x— FENCE ,a, —,o, SITE --_ - N �;; __ r== SUBSURFACE STRUCTURES • \ -;� ♦ / RESIDENTIAL , W / % E + MONITORING WELL (ORIGIN UNKNOWN) VACANT � \ -� B-,oe/Mw �oe s se-1/Mw-, INSTALLED PRIOR TO 1990 FENCE �j//� BUILDING MONITORING WELL (TRC, NOV 2004) 8-108/MW-108 • �/, i / - MONITORING WELL (TRC, JUNE 2005) s13-8 `� •��j' _ - SOIL BORING (TRC, NOV 2004) ENTRANCE B-1,o ♦ -� — ='- ^\ -fit SOIL BORING (TRC, DUNE 2005) e^Y ;M\ GEOPHYSICAL (GPR) SURVEY AREA (TRC, 2004) MVM`' CATCH BASIN TP® < MONITORING TEST PIT (TRC, JUNE 2005) / ` �— TO -APPROX MATE LOCATION OF OBSERVED STAINED SOIL 20AM GALLON SINGLE CAR GARAGE NO.6 FUEL OIL LIST - -9/MN6�� , Y8-107/Mw-1 \ SECONDAR \ FILL/VENT PIPE E O� .� Y BUILQt�I�;����� s a ENTRANCE --// .;, ;���K", `\ 13- COMMERCIAL N FREIGHT �\�` o\BD9 `� +r B-112 ELEVATOR I. STORAGE sB-3/Mw-.3 (PUBLIC STORAGE FACILITY) MAIN - B-s BUILDING $ ENTRANCE —111 ANNEX ` SB-2/Mw-2 V " FORMER e-t t 3 } O I •..,� WASHTANK SECONDARY se-,o ENTRANCE LOADING DOCK COVERED • 'Fa ', COMMERCIAL ., PAWNG \` �Lk, (PUBLIC STORAGE FACILITY) AREA X. - \• ��, / 8-110 I o: s/O��ji 2 �♦ DUNKIN' 1' � DONUTS �< `�. FORMER FLYNNTAN SITE 70-92 BOSTON STREET 0 30' so' SALEM, MASSACHUSETTS m - APPROXIMATE SCALE IN FEET BORING & MONITORING WELL SAMPLING LOCATION PLAN_ Baotl M1113 South TRc 118 John Street Lowell, Mommachuseft 01852 FIGURE (978) 970-5670-3800 DRAWN BY: RWB 2- 1 DATE: 10/25/05 CHECKED BY: JSH l 0 •ry N O � O w� �00 p � P;cl >. v l X x X ca R rn c Cd T >ad V *, x r� a 2 U W yC x X X � a CO) b y M N ci c °x`°x 00 b� a� O 4-4 Q+ 00 00 ml � 00 � �O T�•.^y p 4 4 O O O O 'mot N N a y cl Un O U 0 0 � o 00 o 0 0 0 0 0 a 110 b b vi W t� W a1 a1 GQ GQ Aa I� _ w w X � H z o is N j � z a a U y d a o c � h c Cd u ^l ed 0 �j .� N Q! O 00 Gn 00 ta 00 CO +r u t O T u b Cl � �-i Cm Cd ao 0 b A't7 $ u+ o 0 0 Co 0 0 0 o o 0 0 000 0 r� b b x 6 a� Ux � eaca � V� oq O' O b � .� cdwx X S9 � > A y 114 W GO xx 2 >o � w z e� ea 00 N d' v1 1�0 n 00 n b o 0 0 0 0 0 o a A A o 2.2 IRA Assessment Activities Status On behalf of the City and as required by the MADEP, TRC performed Immediate Response Action("IRA") assessment activities at the Site during this supplemental Site investigation. As such, this section of this report will serve as the required IRA Status Report in order to update the MADEP on the status of the IRA assessment conducted on Site. As previously indicated in this report, a release of LNAPL was discovered in monitoring well MW-1, located on the eastern portion of the site, during initial Site investigation groundwater sampling activities conducted on December 28, 2004. The discovery prompted a 72-hour release notification to the MADEP,which was provided on December 30, 2.004. The Site was assigned Release Tracking Number("RTN'.') 3-24618. This report section serves as the second IRA Status Report submitted for this release. A completed IRA Transmittal Form(form BWSC-105)is attached. A copy.of the IRA transmittal form is provided in Appendix B. Site information: Former Flynntan Manufacturing Site 70-92 Boston Street Salem, Massachusetts RTN 3-24618 The party performing the response actions for the Site: The City of-Salem, Massachusetts Attention: Ms. Lynn Duncan Director of Planning and Community Development City Hall Annex 120 Washington Street—3rd Floor Salem, Massachusetts 01970 The Licensed Site Professional ("LSP") overseeing this IRA is: Mr. Mark Casey,.PE, LSP TRC Environmental Corporation Boott Mills South 116 John Street. Lowell,Massachusetts 01852 2.2.1 Site Description j The Site description is provided in Section 1.2. f 1 L2005-487 2-5 November 2005 2.2.2 Release Description On December 28, 2004, approximately 1.49 feet of LNAPL was measured in groundwater monitoring well MW-1 located along the eastern perimeter of the Site as shown on Figure 2-1. The LNAPL discovery triggered a 72-hour release notification condition under the MCP. On behalf of the City of Salem, Mark Casey of TRC verbally notified the MADEP of the release on December 30,2004 at approximately 10:00 a.m. Mr. Casey was given authorization to undertake IRA assessment activities and provide the MADEP with a written IRA Plan within 60 days of verbal notification. At the time of release notification, the MADEP issued the Site RTN 3-24514. On February 9, 2005, Mr.Paul Giddings of the MADEP informed TRC that the Department had mistakenly assigned RTN 3-24514 to two separate releases, and that the correct RTN for the subject release is RTN 3-24618. On February 28, 2005, TRC submitted a Release Notification Form(RNF) and written IRA Plan to the MADEP for this release. 2.2.3 Summary of IRA Activities IRA assessment activities were performed on June 14 and 15, 2005 and included the installation of five (5) soil borings (B-101/MW-101, B-102/MW-102, B-104/MWt04,B-105/MW-105 and B-I08/MW108) and four(4)test pits (TP-1, TP-2, TP-3 and TP-4) at the locations shown on Figure 2-1. Each soil boring was completed as a groundwater monitoring well. Soil borings/groundwater monitoring wells were installed as described in Section 2.1. Attempts to install proposed soil boring and groundwater monitoring well B-103/MW-103 west of existing groundwater monitoring well MW-1 were unsuccessful as refusal on what is believed to be former on-Site building demolition debris used as Site fill material was encountered. Soil samples were collected from the soil borings as noted on Table 2-1. No soil samples were collected from the test pits. IRA assessment activities were also monitored with a multi-gas meter equipped with a PID and hydrogen sulfide probe. PID readings are provided on the soil boring logs presented in Appendix A. Hydrogen sulfide concentrations were not detected during test pitting or soil boring installation activities. Under the direction of TRC, test-pitting activities were performed by City of Salem Department of Public Works personnel on the northwestern portion of the Site, in a former paved parking area. One(1)approximately 20,000-gallon No. 6 fuel oil containing UST was located in the area: Based on field measurements conducted by'TRC personnel and based on the tank's geometry., approximately 3,000 to 4,000 gallons of oil and water remain in the UST. Test pit logs are provided in Appendix C. LNAPL was discovered on the groundwater surface at existing groundwater monitoring well MW-1 and neAy installed well MW-105 at a thickness of 3.6 and 7.9 feet, respectively. LNAPL was not detected in wells MW-101 or MW-108 installed within Goodhue Street to the northeast(i.e., downgradient).of well MW-1: No LNAPL or any contaminants in excess of current Massachusetts Contingency Plan('MCP')Method 1 Standards were detected in the j remaining groundwater monitoring wells installed as part of the IRA assessment program. Based on this information LNAPL does not appear to have migrated significantly from the subject t 7 L2005-481. 2-6 November 2005 i i I property. A summary of soil and groundwater analytical results is provided in Tables 3-2 and 3- 3, respectively. Groundwater analytical results are discussed in greater detail in Section 3.2.2. 2.2.4 Management of Remediation Wastes No remediation waste has been generated to date as a result of the IRA assessment program. 2.2.5 Federal,State and Local Permits Permits required for implementation of this IRA assessment program included notification to Dig Safe System, Inc. (Dig Safe and obtaining a City of Salem Street Opening Permit to install groundwater monitoring wells in a public roadway. No other federal, state or local permits or approvals were necessary for the implementation of this IRA assessment program. 2.2.6 Future IRA Activities The IRA assessment activities discussed in this report were funded by an EPA Brownfields Assessment Grant. At the time of this report's submittal, funding is no longer available to the City for continued IRA assessment activities, and TRC's contract with the City has expired. Therefore, the performance of future IRA activities at this Site is uncertain. Should additional fi.mding be obtained by the City, TRC recommends that that future IRA activities_include monthly gauging of well MW-1, MW-101, MW-102, MW-104,MW-105 and MW-108 to observe groundwaterfLNAPL levels and to monitor for the potential migration of LNAPL from the property. TRC also recommends that the 20,000-gallon No. 6 fuel oil UST be emptied of its contents, decontaminated and removed and disposed off-Site under local and state regulations. UST decommissioning activities should be conducted, specifically;under the April 9, 1996 MADEP Policy#WSC-402-96 (Commonwealth of Massachusetts Underground Storage Tank Closure Assessment Manual). Finally, further evaluation of the extent of LNAPL at the property should be performed as well as an evaluation of potential LNAPL removal alternative for the Site. Based on the groundwater elevation contours developed as part of this supplemental investigation, an additional two (2) groundwater monitoring wells should be installed within Goodhue Street, immediately east of MW-1 in an effort to fitrther evaluate the potential for off- Site migration of LNAPL. 2.3 Groundwater Sampling Figure 2-1 depicts the groundwater monitoring wells installed by TRC. The conversion of soil borings to monitoring wells included the installation of a.two-inch outside diameter PVC 0.010- slot screen and riser pipe into the boring upon completion. Due to difficult subsurface conditions at MW-105, a one-inch diameter well was.constructed. On June 22 and 23,2005, TRC returned to the Site to collect groundwater.samples from the newly installed groundwater monitoring wells. Separate phase petroleum hydrocarbons, as noted L.2005-487 2-7 November 2005 above, were observed in monitoring wells MW-1 and MW-105 at a thickness of approximately 3.6 and 7.9 feet,respectively. Separate phase hydrocarbons were not observed in wells MW-101 F or MW-108 installed within Goodhue Street to the north(i.e.,downgradient) of well MW-1, or in the remaining on-Site groundwater monitoring wells. Table 2-1 presents a list of groundwater samples collected as well as the chemical analyses performed on each sample. Well installation and sampling activities were conducted in accordance with the EPA-approved QAPP Addendum C. 2.4 Location and Elevation Survey On June 22, 2005, TRC performed a relative elevation survey of the newly installed monitoring wells in an effort to evaluate the direction of groundwater flow across the Site. Well casing elevations and groundwater table elevations were measured relative to arbitrary benchmark elevation (permanent ink marked designation) of 100 feet, located on a boulder on the slope located north of the Main Building and west of MW-I. 2.5 MCP Reporting Requirements The laboratory analytical results from this supplemental Site investigation were compared with MCP Method 1 Standards for category S-1/GW-2 (S-1 category soil within a GW-2 categorized groundwater area) and S-1/GW-3 soils, and GW-2 and GW-3 groundwater. Analytical results from the November 2004 initial Site investigation were also compared to these standards. Summaries of detected compounds from both Site investigations are provided on Tables 3-2 and 3-3, and are discussed in Section 3.0. L2005-487 2-8 November 2065 3.0 RESULTS OF INVESTIGATION 3.1 Subsurface Conditions Appendix A contains copies of the soil boring logs and well construction diagrams for the borings and monitoring wells that were completed at the Site as part of TRC's additional investigation. The subsurface descriptions provided below are based on observations made during the soil boring program completed as part of this supplemental investigation. The Site is underlain by layers of fine to coarse sand and fine to medium gravel fill material including limited amounts of anthropogenic (brick, concrete,wood, ash)material. Ash/slag was observed in the 2-4 bgs soil boring interval at boring location SB-1 04/MW-104. Refusal occurred due to buried debris likely from a former on-Site building in the northern portion of the Site, in the area west of previously installed soil boring SB-1/MW-1. Nine (9) attempts were performed in this area with refusal encountered at approximately one foot bgs during .unsuccessful attempts to install the proposed soil boring B-1 03/MW-103. 3 Depth to groundwater at the Site and within the immediate vicinity, as measured by TRC on j October 11, 2005, ranged from approximately 8.8 feet bgs at MW=107 to 36.7 feet bgs at MW- 105. Table 3-1 presents a summary of monitoring well construction and groundwater elevation data for TRC's wells. Figure 3-1 depicts the direction of groundwater flow based on these data. Table 3-1: Monitoring Well Construction/Groundwater Elevation Data Former Flyuntan Manufacturing Company Site 70-92 Boston Street Salem, Massachusetts Elevation of Monitoring Depth of Well PVC Depth to Depth to Groundwater Well Screen Riser Pipe Groundwater SPH Elevation Designation (feet) (feet) (feet) (feet) (feet) Monitoring Wells Installed by TRC on November 17 and 18, 2004 MW-1 5— 15 96.36 12.30 8.70 N/A MW-2 18—28 113.98 21.30 --- 92.68 MW-3 5— 15 99.18 Not'measured' N/A N/A MW-4 12.5--22.5 N/A Destroyed „ N/A N/A MW-5 2-7 99.81 Perched,not N/A N/A considered MW-6 5— 15 99.86 Not measured' N/A N/A i Monitoring Wells Installed by TRC on June 14 and 15, 2005 MW-101 2 - 12 95.20 6.65 --- 88.55 MW-102 5 - 15 98.97 10.72 --- 88.25 J L.2005-487 3-1. November 2005 1 Table 3-1: Monitoring Well Construction/Groundwater Elevation Data Former Flynntan Manufacturing Company Site 70-92 Boston Street Salem, Massachusetts Monitoring Wells Installed by TRC on June 14 and 15, 2005 (cont'd) MW-104 2 - 12 98.50 10.10 -- 88.40 MW-105 17-37 119.05 36.70 28.80 N/A MW-106 5 - 15 96.88 8.90 --- 87.98 MW-107 5 - 15 93.30 8.80 --- 84.50 MW-108 3 - 13 93.46 5.28 --- 88.18 Notes: 1 -Facility building inaccessible N/A-Not applicable Based on groundwater elevations collected on October 11, 2005, groundwater is interpreted to flow to the east-northeast as shown on Figure 3-1. -3.2 Nature and Extent of Contamination Appendix D contains copies of the laboratory analytical reports. 3.2.1. Soil Table 3-2 presents a summary of the results of chemical analyses for soil samples collected at the Site during the initial and this supplemental phase of the Site investigation. Note that this table lists only those analytes that were detected in the samples collected. Volatile Organic Compounds(VOCs): VOCs were not detected in excess of their respective MCP Method 1 S-1/GW-2 or S-1/GW-3 standards during this supplemental investigation. Volatile Petroleum Hydrocarbons(VPH): VPHs were not detected in excess of their respective MCP Method 1 S-1/GW-2 or S-1/GW-3 standards during this supplemental investigation. Extractable Petroleum Hydrocarbons(EPH): Benzo(a)anthracene,benzo(a)pyrene, benzo(b)fluoranthene, and indeno(1,2,3-cd)pyrene were detected at concentrations exceeding their respective MCP S-1/GW-2 or S-1/GW-3 standards in the field-duplicate of soil sample B- 101. Soil boring B-101 was installed on the western side of Goodhue.Street. The detection of these compounds in soil in MW-101 is not considered to be related to the release of LNAPL identified in well MW-1. No other EPH constituents were detected in excess of their respective MCP Method 1 S-1/GW-2 or S-1/GW-3 standards in Site or immediate vicinity soil samples collected during this supplemental investigation. U005-487 3-2 November 2005 APPROXIMATE LEGEND LOCATION OF FORMER SITE BUILDING �.. .�. (DEMOLISHED AND SITE BOUNDARY • ' . . FILLED LATE 1990:) ------------------- PARKING AREA BOUNDARY '� a '-� — X— x— ■— FENCE B-101/Mw-101 N GROUNDWATER CONTOUR / 88.55 w ` ' E 88.18 GROUNDWATER ELEVATION RESIDENTIAL ' B_,�a/►r�,�n�. 8 % ----�__ VACANT S SUBSURFACE STRUCTURES L--- -- �18 BUILDING FENCE • MONITORING WELL (ORIGIN UNKNOWN) INSTALLED PRIOR TO 1990 _ sB—i/Mw-1 o MONITORING WELL (TRC, NOV 2004) B-108/MW-108 •/ MONITORING WELL (TRC, JUNE 2005) REAR E.. ;- ; ENTRANCE ,- ✓ �Tp� �- : • \ 5 G SILDI13-8 SOIL BORING (TRC, NOV 2004) B-110 (o YE 5B 8 -C SOIL BORING (TRC, JUNE 2005) `,/ \ M 5^ CATCH BASIN `—MONITORINGWELL LOCATION OF GEOPHYSICAL (GPR) SURVEY AREA (TRC, 2004) OBSERVED STAINED SOIL TP-3 20,000GALLON , SINGLE CAR GARAGE ® TEST PIT (TRC, JUNE 2005) NO.6 FUEL OIL UST 6`�. B-1o7/MW-10T O� SECONDARY \ ` 84.5D FILL/VENT PIPE BU��� � COMMERCIAL •. 8- FREIGHT ��B � B BB-3 MW-3 (PUBLIC STORAGE FACILITY BFVATOR / `�i {�. `�. STORA 1 ) M MAN CB-5 G ENTRANCE `�; — ANN 8.0 a `` SB-2/MW-2 N \ O FORMER 13 � ` Q N \ WASHTANK • ` O I --� SECONDARY S13-10 - ` �. �G _�= !./� m - ENTRANCE `vV ~\ \ T COMMERCIALUMMMUNG,DOCK E �� PAING (PUBLIC STORAGE FACILITY) \ AREA 8-„0 ` 1 � / 190 >• ��� s, o,1 V• DUNKIN' Z DONUTS �01 Ix a FORMER FLYNNTAN SITE 70-92 BOSTON STREET 0 30, 60' \� SALEM, MASSACHUSETTS I GROUNDWATER ELEVATION CONTOURS APPROXIMATE SCALE IN FEET FOR SAMPLED MONITORING WELLS ott Mllls South 'oh �tr.�wM „s 01852 Bo7s (911) 970-5600 FIGURE 3- 1 DRAWN BY: RWB DATE: 10/25/05 CHECKED BY: JSH Table 3-2 Summary of Detected Compounds in Soil Former Flynntan Manufacturing Company Site 70-92 Boston Street Salem,Massachusetts Analysis Analyte MCP Method 1 Sample ID: SB1-8 SB2-2 SB3-6 SB4-14 SB5-2 SB7-2 SB8-2 SB9-8 SB9-8 S1310-2 B-101 B-101 B-102 Field Duplicate Field Duplicate Depth(feet): 8,5-8"' 2,0-5t2) 6,4-7t2) 14, 10-15"' 2,0-5t�1 0-5 2,0-3.5t�1 8,5-10"' 8,540M 2,0-5t21 4-8 4-8 4-8 S-1/GW-2 S-1/GW-3 Date sampled: 11/17/04 11/18/04 11/17/04 11/18/04 11/17/04 11/17/04 11/17/04 11/17/04 11/17/04 11/18/04 06/15/05 06/15/05 06/14/05 VOCs Trichlorofluoromethane NS NS 0.002 J NA 0.001 J 0.005 U 0.003 J NA 0.001 J 0.001 U 0.002 J 0.005 .0 NA NA NA (mg/kg) Acetone 60 60 0.042 NA 0.094 0.012 0.014 NA 0.006 0.041 0.035 0.005 U NA NA NA Carbon Disulfide NS NS 0.004 U NA 0.004 U 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA Methylene Chloride 100 100 0.008 NA 0.007 0.006 0.010 NA 0.004 0.006 0.012 0.007 NA NA NA 2-Butanone 40 40 0.004 U NA 0.022 0.005 U 0.006 U NA 0.004 U 0.007 0.007 0.005 U NA NA NA Benzene 40 40 0.008 NA 0.004 U 0.005 U 0.006 U NA 0.004 U 0:004 U 0.004 U 0.005 U NA NA NA Trichloroethene 20 70 0.004 U NA 0.002 J 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U. NA NA NA 1,2-Dichloropropane 0.2 8 0.037 NA 0.004 U 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA Toluene 500 500 0.004 U NA 0.007 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA Tetrachloroethene 20 20 0.040 NA 0.034 0.010 0.025 NA 0.007 0.013 0.010 0.004 J NA NA NA Chlorobenzene 80 40 0.004 U NA 0.004 U 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA Ethylbenzene 500 500 0.098 J NA 0.004 U 0.005 U 0.006 U NA 0.004 U 0.004 U 0.001 J 0.005 U NA NA NA m,p-Xylene 500 500 0.160 J NA 0.980 0.001 J 0.003 J NA 0.004 U 0.002 J 0.004 U 0.005 U NA NA NA o-Xylene 500 500 0.046 J NA 0.290 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA Xylene(Total) 500 500 0.210 J NA 1.3 0.001 J 0.003 J NA 0.004 U 0.002 J 0.001. J 0.005 U NA NA NA Isopropylbenzene too([)_ 10011, 1.2 NA 0.170 J 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA n-Propylbenzene too([) 100'" 2.2 NA 0.004 U 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA 1,3,5-Trimethylbenzene 100(,, too(') 0.960 NA 84 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.003 J NA NA NA tert-Butylbenzene 100 01 100 11) 0.150 J NA 2.8 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA 1,2,4-Trimethylbenzene 100 t" 100 t" 1.1 NA 120 0.005 U 0.002 J NA 0.004 U 0.004 U 0.004 U 0.006 NA NA NA sec-Butylbenzene 10011) 100'" 2.9 NA 1.8 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA 4-Isopropyltoluene too(,) 10011, 1.4 NA 14 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA 1,3-Dichlorobenzene 100 100 - 0.230 U NA 0.110 J 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA 1,4-Dichlorobenzene 40 40 0.230 U NA 0.190 J 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA n-Butylbenzene 100 t'1 100 t" 3.1 NA 0.004 U 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA Hexachlorobutadiene 3 5 0.073 J NA 0.004 U 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA Naphthalene 100 100 0.230 U NA 2.7 0:005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA 1,2,3-Trichlorobenzene NS NS 0.170 J NA 0.004 U 0.005 U 0.006 U NA 0.004 U 0.004 U 0.004 U 0.005 U NA NA NA VPH C5-C8 Aliphatics 100 100 24 5.0 U 19 5.6 U 6.5 U NA 4.8 U 8.4 U 5.9 U 5.6 U 11 B 13 B 11 B (mg/kg) C9-C10 Aromatics 100 100 240 6.0 720 5.6 U 8.2 NA 5.4 8.4 U 7.8 6.4 5 U 5.8 U 5.1 U C9-C12 Aliphatics 1,000 1,000 240 5.0 U 1,100 5.6 U 6.5 U NA 4.8 U 8.4 U .5.9 U 5.6 U 5 U 5.8 U 5.1 U Ethylbenzene 500 500 3.5 0.25 U 13 0.28 U 0.32 U NA 0.24 U 0.42 U 0.30 U 0.28 U 0.25 U 0.29 U 0.26 U Toluene. 500 500 1.3 0.25 U 0.33 U 0.28 U 0.32 U NA 0.24 U 0.42 U 0.30 U 0.28 U 0.25 U 0.29 U 0.26 U o-Xylene 500 500 3.4 0.25 U 16 0.28 U 0.32 U NA 0.24 U 0.42 U 0.30 U 0.28 U 0.25 U 0.29 U 0.26 U m,p-Xylene 500 500 0.41 0.25 U 1.8 0.28 U 032 U NA 0.24 U 0.42 U 0.30 U 0.28 U 0.25 U 0.29 U 0.26 U Naphthalene 100 100 0.31 0.25 U 0.33 U 0.28 U 0.32 U NA 0.24 U 0.42 U 0.30 U 0.28 U 0.25 U 0.29 U 0.26 U FPH C9-Cis Aliphatics 1,000 1,000 2,700 10 U 57 28 11 U NA 14 12 U 12 U 15 58 U 59 U 57 U (mg/kg) C19-C3c Aliphatics 2,500 2,500 3,500 45 53 62 120 NA 70 260 35 80 58 U 59 U 57 U CI-C22 Aromatics 800 800 1,500 31 61 65 59 NA 130 75 30 160 58 U 99 57 U 2-Methylnaphthalene 500 500 8.4 0.52 U 0.55 U 0.52 U 054 U NA 0.58 U 0.59 U 0.58 U 0.53 U 0.58 U 0.59 U 0.57 U Acenaphthylene 100 100 4.1 0.52 U 0.55 U 0.52 U 0.54 U NA 0.58 U 0.59 U 0.58 U 0.53 U 0.58 U 0.59 U 0.57 U Phenahthrene 1,000 100 5.0 0.52 U 0.55 U 0.52 U 0.54 U NA 5.0 0.59 U 0.58 U 0.53 U 0.58 U 0.74 0.57 U Anthracene 1,000 1,000 0.54 U 0.52 U 0.55 U 0.52 U 0.54 U NA 1.8 0.59 U 0.58 U 0.53 U 0.58 U 0.59 U 057 U Fluoranthene 1,000 1,000 1.1 0.52 U 0.55 U 0.52 U 0.66 NA 8.6 0.59 U 0.58 U 0.98 0.78 2.4 0.57 U Pyrene 700 700 1.1 0.52 U 0.55 U 0.52 U 0.71 NA 8.0 0.59 U 0.58 U 0.97 0.99 2.5 0.57 U Benzo(a)anthracene 0.7 0.7 0.54 U 0.52 U 0.55 U 0.52 U 0.54 U NA 3.8 0.59 U 0.58 U 0.53 U 058 U 1.4 0.57 U Chrysene 7 7 0.54 U 0.52 U 055 U 0.52 U 0.54 U NA 4.2 0.59 U 0.58 U 0.53 U 0.58 U 1.5 0.57 U Benzo(b)fluoranthene 0.7 0.7 0.54 U 0.52 U 0.55 U 0.52 U 0.54 U NA 4.5 0.59 U 0.58 U 0.53 U 0.58 U 2.1 0.57 U Benzo(k)fluoranthene 7 7 0.54 U 0.52 U 0.55 U 0.52 U 0.54 U NA 1.7 059 U 0.58 U 0.53 U 0.58 U 0.89 0.57 U Benzo(a)pyrene 0.7 0.7 0.54 U 0.52 U 0.55 U 0.52 U 0.54 U NA 33 0.59 U 0.58 U 0.53 U 0.58 U 1.6 0.57 U Indeno(1,2,3-cd)pyrene 0.7 0.7 0.54 U 0.52 U 0.55 U 0.52 U 054 U NA 1.6 0.59 U 0.58 U 0S3 U 0S8 U 13 0.57 U Benzo(ghi)perylene 1,000 1,000 0.54 U 0.52 U 0.55 U 0.52 U 0.54 U NA 1.4 0.59 U 0.58 U 053 U 0.58 U 1.1 0.57 U Supplemental Site Investigation Summary Report 34 October 2Ob5 Table 3-2 Summary of Detected Compounds in Soil Former Flynntan Manufacturing Company Site 70-92 Boston Street Salem,Massachusetts Analysis Analyte MCP Method I Sample ID: SB1-8 S132-2 S133-6 SB4-14 SB5-2 I S137-2 S138-2 S139-8 1 SB9-8 SB10-2 1 B-10t B-101 B-102 Feld Duplicate Feld Duplicate Depth(feet): 8,5-8a1 2,0-5t�1 6,4-7") 14,10-15(2) 2,0-5t21 0-5 2,0-3.5t�1 8,5-10(2) 8,5-10(Z) 2,0-5(2) 4-8 4-8 4-8 S-I/GW-2 S-1/GW-3 Date sampled: 11/17/04 11/18/04 11/17/04 11/18/04 11/17/04 11/17/04 11/17/04 11/17/04 11/17/04 11/18/04 06/15/05 06/15/05 06/14/05 VOCS Naphthalene 100 100 0.360 U 0.340 U 0.800 0.340 U 0.360 U NA 0.380 U 0.390 U 0.380 U 0.350 U NA NA NA (mg/kg) 2-Methylnaphthalene 500 500 16 0.340 U 0.180 J 0.340 U 0.360 U NA 0.073 J 0.390 U 0.380 U 0.350 U NA NA NA 2,4,6-Trichlorophenol 40 40 0.360 U 0.340 U 0.093 J 0.340 U 0.360 U NA 0.380 U 0.390 U 0.380 U 0.350 U NA NA NA Acenaphthylene 100 100 0.360 U 0.340 U 0.360 U 0.340 U 0.095 J NA 0.380 U 0.390 U 0.380 U 0.350 U NA NA NA Acenaphthene 1,000 1,000 0.360 U 0.340 U 0.360 U 0.340 U 0.360 U NA 0.600 0.390 U 0.380 U 0.350 U NA NA NA Dibenzofuran NS NS 0.750 0.340 U 0.360 U 0.340 U 0.360 U NA 0.340 J 0.390 U 0.380 U 0.350 U NA NA NA Huorene 1,000 1,000 1.5 0.340 U 0.360 U 0.340 U 0.038 J NA 0.830 0.390 U 0.380 U 0.350 U NA NA NA Phenanthrene 1,000 100 3.9 0.340 U 0.074 J 0.095 J 0.280 J NA 7.0 0.390 U 0.380 U 0.360 NA NA NA Anthracene 1,000 1,000 0.360 U 0.340 U 0.360 U 0.340 U 0.250 J NA 2.7 0.390 U 0.380 U 0.100 J NA NA 'NA Carbazole NS NS 0.360 U 0.340 U 0.360 U 0.340 U 0.360 U NA 0.950 0.390 U 0.380 U 0.350 U NA NA NA Fluoranthcne 1,000 1,000 0.220 J 0.340 U 0.360 U 0.110 J 2.6 NA 10 0.390 U 0.380 U 0.720 NA NA NA Pyrene 700 700 1.3 0.340 U 0.085 J 0.086 J 2.4 NA 8.0 0.390 U 0.380 U 0.830 NA NA NA Benzo(a)anthracene 0.7 0.7 0.260 J 0.340 U 0.360 U 0.340 U 2.2 NA 4.7 0390 U 0.380 U 0.450 NA NA NA Chrysene 7 7 - 0.790 0.340 U 0.360 U 0:340 U 2.4 NA 4.8 0.390 U 0.380 U 0.530 NA NA NA bis(2-Ethylhexyl)phthalate 200 200 1.4 U 0.071 J 0.120 J 0.073 J 0.070 J NA 0.088 J 0.091 J 0.069 J 0.078 J NA NA NA Benzo(b)fluoranthene 0.7 0.7 0.160 J 0.340 U 0.360 U 0.046 J 2.7 NA 5.1 0.390 U 0.380 U 0.600 NA NA NA Benzo(k)fluoranthene 7 7 1.4 U 0.340 U 0.360 U 0.340 U 1.3 NA 2.2 0.390 U 0.380 U 0.330 J NA NA NA Benzo(a)pyrene 0.7 0.7 1.4 U 0.340 U 0.360 U 0.340 U 2.4 NA 3.6 0.390 U 0.380 U 0.420- NA NA NA Indeno(1,2,3-cd)pyrene 0.7 0.7 1.4 U 0.340 U 0.360 U 0.340 U 0.960 NA 1.0 0.390 U 0.380 U 0.120 J NA NA NA Dibenzo(a,h)anthracene 0.7 0.7 1.4 U 0.340 U 0.360 U 0.340 U 0.320 J NA 0.360 J 0390 U 0.380 U 0.350 U NA NA NA Benzo(g,h,i)perylene 1,000 1,000 1.4 U 0.340 U 0.360 U 0.340 U 0.990 NA 0.970 0.390 U 0.380 U 0.140 J NA NA NA PCBs(mg/kg) Aroclor-1254 2 2 0.036 U 0.034 U NA NA 0.100 0.210 0.038 U 0.039 U 0.038 U 0.048 NA NA NA Metals Antimony 10 10 1.1 U 1.5 1.0 U 0.94 U 1.1 U NA 2.3 1.1 U 1.1 U 1.2 NA NA NA (mg/kg) Arsenic 30 30 1.1 U 1.0 U 1.0 U 0.94 U 2.1 NA 1.1 U 1.9 2.1 3.6 NA NA NA Barium 1,000 1,000 19.2 33.7 22.3 17.5 25.4 NA 60.5 11.7 13.5 43.3 NA NA NA Beryllium 0.7 0.7 0.32 U 0.25 U 0.30 U 0.28 U 0.32 U NA 0.50 0.34 U 0.33 U 0.29 U NA NA NA Cadmium 30 30 2.0 2.5 1.6 1.5 1.2 NA 3.3 1.2 1.1 2.1 NA NA NA Chromium 1,000 1,000 46.3 13.1 12.4 9.3 243 NA 29.4 469 564 17.5 NA NA NA Lead 300 300 7.8 12.9 11.1 9.2 40.5 NA 58.1 10.1 7.6 111 NA NA NA Nickel 300 300 10.3 13.3 10.6 8.0 8.6 NA 55.4 7.9 8.0 12.4 NA NA NA Silver 100 100 6.1 7.0 5.9 4.6 4.0 NA 11.0 4.0 4.1 6.7 NA NA NA Vanadium 400 400 21.1 23.8 18.5 14.8 12.3 NA 233 13.9 13.4 25.4 NA NA NA Zinc 2,500 2,500 33.3 43.6 26.1 32.5 52.2 NA 108 41.7 30.0 48.7 NA NA NA Mercury 20 20 0.036 U 0.033 U 0.033 U 0.032 U 0,044 NA 0.25 0.034 U 0.035 U 0.062 NA NA NA Cyanide(mg/kg) 100 100 1.1 U NA 6.2 0.99 U 1.0 U NA 1.1 U 1.2 1.1 U 0.98 U NA NA NA exavalent Chromium(mg/kg) 200 200 NA NA NA NA 4.33 U NA NA 8.14 9.11 .NA NA NA NA PH(s.u.) NS NS 7.86 NA 7.87 9.30 8.55 NA 7.79 9.24 NA 8.18 NA NA NA Oxidation-reduction Potential(mV) NS NS -43.4 NA 82.8 128.6 99.1 NA 91.9 -30.1 NA 340.7 NA NA NA Notes: All units in mglkg unless otherwise specified- mg/kg-milligrams per kilogram(dry weight)or parts per million(ppm) sm.-standard pH units mV-millivolts NA-Sample not analyzed for the listed analyze. NS-No MADEP listed standards exist for this compound U-Compound was not detected at specified quantitation limit J-estimated value B-Compound detected in method blank E-Exceeds upper limit of calibration Values in Bold indicate the compound detected equal to or exceed the listed MCP Method I standards. VOCs-Volatile Organic Compounds VPH-Volatile Petroleum Hydrocarbons EPH-Extractable Petroleum Hydrocarboos PCBs-Polychlorinated Biphenyls SVOCs-Semivolatile Organic Compounds 11)-Per the MCP VOC Analytical Method requirements,the results for these compounds are compared to the Method 1 standards for C9-CIO aromatic hydrocarbons. (2)-The rust number indicates the depth of VOC and VPH sample collection. The second number range indicates the homogenized sample interval for the remaining analyses. Supplemental Site Investigation Summary Report 3-5 October 2005 Table 3-2 Summary of Detected Compounds in Soil Former Flynntan Manufacturing Company Site 70-92 Boston Street Salem,Massachusetts Analysis Analyte MCP Method I Sample ID: B-104 13-104 B-105 B-107 B-107 B-109 13-110 B-111 B-112 B-113 Field Duplicate Field Duplicate Depth(feet): 2-4 2-4 17-20 2-6 2-6 2-6 4-8 0-3 0-3 0-3 S-1/GW-2 S-I/GW-3 Date sampled: 06/15/05 06/15/05 06/15/05 06/15/05 06/15/05 06/14/05 06/14/05 06/14/05 06/14/05 06/14/05 VOCs Trichlorofluoromethane NS NS NA NA NA 0.004 U 0.003 U NA NA NA NA NA (mg/kg) Acetone 60 60 NA NA NA 0.043 B 0.052 B NA NA NA NA NA Carbon Disulfide NS NS NA NA NA 0.0008 J 0.002 J NA NA NA NA NA Methylene Chloride 100 100 NA NA NA 0.011 B 0.01 B NA NA NA NA NA 2-Butanone 40 40 NA NA NA 0.004 U 0.003 U NA NA NA NA NA Benzene 40 40 NA NA NA 0.004 U 0.003 U NA NA NA NA NA Trichloroethene 20 70 NA NA NA 0.004 U 0.003 U NA NA NA NA NA 1,2-Dichloropropane 0.2 8 NA NA NA 0.004 U 0.003 U NA NA NA NA NA Toluene 500 500 NA NA NA 0.004 U 0.003 U NA NA NA NA NA Tetrachloroethene 20 20 NA NA NA 0.004 U 0.003 U NA NA NA NA NA Chlorobenzene 80 40 NA NA NA 0.011 0.003 U NA NA NA NA NA Ethylbenzene 500 500 NA NA NA 0.024 0.003 U NA NA NA NA NA m,p-Xylene 500 500 NA NA NA 0.004 U 0:003 U NA NA NA NA NA o-Xylene 500 500 NA NA NA 0.004 U 0.003 U NA NA NA NA NA Xylene(Total) 500 500 NA NA NA 0.004 U 0.003 U NA NA NA NA NA Isopropylbenzene too(]) 100"' NA NA NA 0.18 E 2.4 J NA NA NA NA NA n-Propylbenzene 10011, 10011, NA NA NA 4.8 J 6.8 J NA NA NA NA NA 1,3,5-Trimethylbenzene 10011' 100t" NA NA NA 0.18 E 0.003 U NA NA NA NA NA tert-Butylbenzene 100(') 100(') NA NA NA 0.004 U 0.16 E NA NA NA NA NA 1,2,4-Trimethylbenzene too(,) 100"' NA NA NA 8.4 J 32 NA NA NA NA NA sec-Butylbenzene 100 in too(,) NA NA NA 6.0 J 6.9 J NA NA NA NA NA 4-Isopropyltoluene loot" 100"' NA NA NA 3.6 J 9.3 J NA NA NA NA NA 1,3-Dichlorobenzene 100 100 NA NA NA 0.005 0.008 NA NA NA NA NA 1,4-Dichlorobenzene 40 40 NA NA NA 0.017 0.021 NA NA NA NA NA n-Butylbenzene too([) too(,) NA NA NA 6.2 J 7.9 J NA NA NA NA NA Hexachlorobutadiene 3 5 NA NA NA 0.004 U 12 U NA NA NA NA NA Naphthalene 100 100 NA NA NA 0.012 0.004 NA NA NA NA NA 1,2,3-Trichlorobenzene NS NS NA NA NA 0.004 U 12 U NA NA NA NA NA VPH C5-Cs Aliphatics 1 100 100 NA NA NA NA NA NA 10 B NA NA NA mg/kg) C9-CIO Aromatics 100 100 NA NA NA NA NA NA 4.8 U NA NA NA C9-C12 Aliphatics 1,000 1,000 NA NA NA NA NA NA 4.8 U NA NA NA Ethylbenzene 500 500 NA NA NA NA NA NA 0.24 U NA NA NA Toluene 500 500 NA NA NA NA NA NA 0.24 U NA NA NA o-Xylene 500 500 NA NA NA NA NA NA 0.24 U NA NA NA m,p-Xylene 500 500 NA NA NA NA NA NA 0.24 U NA NA NA Naphthalene 100 100 NA NA NA NA NA NA 0.24 U NA NA NA EPH C9-Clg Aliphatics 1,000 1,000 NA NA NA NA NA NA 51 U NA NA NA +'mg/kg) C19-C36 Aliphatics 2,500 2,500 NA NA NA NA NA NA 51 U NA NA NA Ctt-C22 Aromatics 800 800 NA NA NA NA NA NA 51 U NA NA NA 2-Methylnaphthalene 500 500 NA NA NA NA NA NA 0.51 U NA NA NA Acenaphthylene 100 100 NA NA NA NA NA NA 0.51 U NA NA NA Phenanthrene 1,000 100 NA NA NA NA NA NA 0.51 U NA NA NA Anthracene 1,000 1,000 NA NA NA NA NA NA 0.51 U NA NA NA Fluoranthene 1,000 1,000 NA NA NA NA NA NA 0.51 U NA NA NA Pyrene- 700 700 NA NA NA NA NA NA 0.51 U NA NA NA Benzo(a)anthracene 0.7 0.7 NA NA NA NA NA NA 0.51 U NA NA NA Chrysene 7 7 NA NA NA NA NA NA 0.51 U NA NA NA Benzo(b)fluoranthene 0.7 0.7 NA NA NA NA NA NA 0.51 U NA NA NA Benzo(k)fluoranthene 7 7 NA NA NA NA NA NA 0.51 U NA NA NA Benzo(a)pyrene 0.7 0.7 NA NA NA NA NA NA 0.51 U NA NA NA Indeno(1,2,3-cd)pyrene 0.7 0.7 NA NA NA NA NA NA 0.51 U NA NA NA Benzo(ghi)perylene 1,000 1,000 NA NA NA NA NA NA 0.51 U NA NA I NA jj Supplemental Site Investigation Summary Report 3-6 October 2005 Table 3-2 Summary of Detected Compounds in Soil Former Flynntan Manufacturing Company Site 70-92 Boston Street Salem,Massachusetts Analysis Analyte MCP Method 1 Sample ID: B-104 B-104 B-105 B-107 B-107 B-109 B-110 B-111 B-112 B-113 Feld Duplicate Field Duplicate C Depth(feet): 2-4. 2-4 17-20 2-6 2-6 2-6 4-8 0-3 0-3 0-3 S-1/GW-2 S-1/GW-3 Date sampled: 06/15/05 06/15/05 06/15/05 06/15/05 06/15/05 06/14/05 06/14/05 06/14/05 06/14/05 06/14/05 'VOCS Naphthalene 100 100 NA NA NA NA NA NA NA NA I NA NA (mg/kg) 2-Methyl naphthalene 500 500 NA NA NA NA NA NA NA NA NA NA 2,4,6-Trichlorophenol 40 40 NA NA NA NA NA NA NA NA NA NA Acenaphthylene 100 100 NA NA NA NA NA NA NA NA NA NA Acenaphthene 1,000 1,000 NA NA NA NA NA NA NA NA NA NA Dibenzofuran NS NS NA NA NA NA NA NA NA NA NA NA Fluorene 1,000 1,000 NA NA NA NA NA NA NA NA NA NA Phenanthrene 1,000 100 NA NA NA NA NA NA NA NA NA NA Anthracene 1,000 1,000 NA NA NA NA NA NA NA NA NA NA Carbazole NS NS NA NA NA NA NA NA NA NA NA NA Fluoranthene 1,000 1,000 NA NA NA NA NA NA NA NA NA NA Pyrene 700 700 NA NA NA NA NA NA NA NA NA NA Benzo(a)anthracene 0.7 0.7 NA NA NA NA NA NA NA NA NA NA Chrysene 7 7 NA NA NA NA NA NA NA NA NA NA bis(2-Ethylhexyl)phthalate 200 200 NA NA NA NA NA NA NA NA NA NA Benzo(b)fluoranthene 0.7 0.7 NA NA NA NA NA NA NA NA NA NA Benzo(k)fluoranthene 7 7 NA NA NA NA NA NA NA NA NA NA Benzo(a)pyrene 0.7 0.7 NA NA NA NA NA NA NA NA NA NA Indeno(1,2,3-cd)pyrene 0.7 0.7 NA NA NA NA NA NA NA NA NA NA Dibenzo(a,h)anthracene 0.7 0.7 NA NA NA NA NA NA NA NA NA NA Benzo(g,h,i)perylene 1,000 1,000 0.032 U 0.03 U NA NA NA NA NA NA NA NA PCBs(mg/kg) Aroclor-1254 2 2 0.032 U 0.03 U NA NA NA NA NA 0.18 0.12 0.031 U Metals Antimony 10 10 1.5 NA 1.0 U 0.93 U 0.96 U 1.0 U 0.91 U NA NA NA (mg/kg) Arsenic 30 30 15.2 NA 3.8 7.4 5.4 3.9 3.2 NA NA NA Barium 1,000 1,000 451 NA 1 10.6 18.7 17.5 10 U 17.1 NA NA NA Beryllium 0.7 0.7 0.32 U NA 0.3 U 0.28 U 0.29 U 0.31 U 0.28 U NA NA NA Cadmium 30 30 0.32 U NA 0.3 U. 0.28 U 0.29 U 0.31 U 0.28 U NA NA NA Chromium 1,000 1,000 53 NA 5.1 67.1 46.5 8.9 7.8 NA NA NA Lead 300 300 288 NA 3.9 14.2 16.3 4.1 5.2 NA NA NA Nickel 300 300 9.2 NA 7.2 9.3 12 8.7 7.2 NA NA NA Silver 100 100 2.4 NA 2.0 1.7 2.3 1.6 2.0 NA NA NA Vanadium 400 400 18.3 NA 21.3 19.1 23.2 12.3 16 NA NA NA Zinc 2,500 2,500 219 NA 17.7 31.2 36.5 20.7 27.3 NA NA NA Mercury 20 20 NA NA NA NA NA NA NA NA NA NA Cyanide(mg/kg) 100 100 NA NA NA NA NA NA NA NA NA NA Hexavalent Chromium(mg/kg) 200 200 NA NA NA NA NA NA NA NA NA NA pH(S.u.) NS NS 8.93 NA 8.87 9.32 NA 9.10 8.83 NA NA NA udation-reduction Potential(mV) NS NS 182.4 NA 149.9 127.5 NA 113.3 163.3 NA NA NA Notes: All units in mgJkg unless otherwise specified. mg/kg-milligrams per kilogram(dry weight)or parts per million(ppm) s.u_-standard pH units mV-millivolts NA-Sample not analyzed for the listed analyte_ NS-No MADEP listed standards exist for this compound. U-Compound was not detected at specified quantitation limit. I-estimated value B-Compound detected in method blank E-Exceeds upper limit of calibration Values in Bold indicate the compound detected equal to or exceed the listed MCP Method 1 standards. VOCs-Volatile Organic Compounds VPH-Volatile Petroleum Hydrocarbons EPH- Extractable Petroleum Hydrocarbons PCBs-Polychlorinated Biphenyks S VOCs-Semivolatile Organic Compounds (1)-Per the MCP VOC Analytical Method requirements,the results for these compounds are compared to the Method 1 standards for C9-C10 aromatic hydrocarbons. (2)-The first number indicates the depth of VOC and VPH sample collection- The second number range indicates the homogenized sample interval for the remaining analyses. Supplemental Site Investigation Summary Report 3-7 October 2005 i Polychlorinated Biphenyl(PCB)Aroclors: PCB Aroclors were not detected in excess of their respective MCP Method 1 S-1/GW-2 or S-1/GW-3 standards during this supplemental investigation. Metals: As indicated in Table 3-2,no metals were detected in excess of their respective MCP Method 1 S=1/GW-2 or S-1/GW-3 standards in Site soil samples collected during this supplemental investigation. 3.2.2 Groundwater Table 3-3 presents a summary of the results of chemical analyses for groundwater samples collected at the Site during the initial and additional Site investigations. Note that this table lists only those analyses that were detected in the samples. . Volatile.Organic Compounds(VOCs): No VOCs were detected in excess of their respective MCP Method 1 GW-2 or GW-3 standards during the additional investigation. Volatile Petroleum Hydrocarbons (VPH): No VPHs were detected in excess of their respective MCP Method 1 GW-2 or GW-3 standards during the additional investigation. Extractable Petroleum Hydrocarbons (EPH): No EPHs were detected in excess of their respective MCP Method 1 GW-2 or GW-3 standards during the additional investigation. Metals: No MCP metals were detected in excess of their respective MCP Method.1 GW-2 or GW-3 standards during the additional investigation. 3.3 Data Usability Assessment TRC conducted a data usability assessment of the data. In general, the precision, accuracy and completeness of the data were considered acceptable for the purposes of this project. The results ' of the data usability assessment are provided in Appendix E. i a a L2005-487 3-8 November 2005 Table 3-3 Summary of Detected Compounds in Groundwater Former Flynntan Manufacturing Company Site 70-92 Boston Street Salem,Massachusetts Analysis Analyte MCP Method 1 Sample ID: MW-2 MW-3 MW-5 MW-6 MW-6 MW-101 MW-101 MW-102 MW-104 MW-106 MW-107 MW-107 MW-108 Field Dup Field Dup Field Dup GW-2 GW-3 Date sampled: 12/29/04 12/29/04 12/28/04 12/29/04 12/29/04 06/23/05 06/23/05 06/24/05 06/24/05 06/23/05 06/23/05 06/23/05 06/23/05 VOCs Chloroethane NS NS 5 U I J 5 U 5 U 5 U NA NA NA NA i NA 5 U 5 U NA (ug/L) Acetone 50,000 50,000 2 J 4 J 5 U 5 U 5 U NA NA NA NA NA 2 J 5 U NA Methyl tert-butyl ether 50,000 50,000 1 J 5 U 5 U 5 U 5 U NA NA NA NA NA 2 J 1 J NA Chlorobenzene 1,000 500 64 5 U 5 U 5 U 5 U NA NA NA NA NA 18 18 NA m,p-Xylene 6,000 50,000 5 U 34 5 U 5 U 5 U NA NA NA NA NA 5 U 5 U NA o-Xylene 6,000 50,000 5 U 11 5 U 5 U 5 U NA NA NA NA NA 5 U 5 U NA Xylene(Total) 6,000 50,000 5 U 45 5 U 5 U 5 U NA NA NA NA NA 5 U 5 U NA Isopropylbenzene 5,000(`) 4,000(`) 15 4 J 5 U 5 U 5 U NA NA NA NA NA 57 56 NA n-Propylbenzene 5,000( 4,000(`) 24 5 U 5 U 5 U 5 U NA NA NA NA NA 68 68 NA 1,3,5-Trimethylbenzene 5,000(`) 4,000(`) 5 U 470 5 U 5 U 5 U NA NA NA NA NA 5 U 5 U NA tert-Butylbenzene 5,000 4,000(`) 8 10 5 U 5 U 5 U NA NA NA NA NA 11 11 NA 1,2,4-Trimethylbenzene 5,000(`) 4,000(`) 180 1200 2 J 5 U 5 U NA NA NA NA NA 82 80 NA sec-Butylbenzene 5,000(1) 4,000(`) 14 10 5 U 5 U 5 U NA NA NA NA NA 26 25 NA 4-Isopropyltoluene 5,000(`} 4,000(1) 4 J 44 5 U 5 U 5 U NA NA NA NA NA 5 U 5 U NA 1,3-Dichlorobenzene 10,000 8,000 5 U 5 U 5 U 5 U 5 U NA NA NA NA NA 1 J 1 J NA 1,4-Dichlorobenzene 30,000 8,000 1 J 2 J 5 U 5 U 5 U NA NA NA NA NA 4 J 4 J NA n-Butylbenzene 5,000(`) 4,000(`) 9 5 U 5 U 5 U 5 U NA NA NA NA NA 12 12 NA 1,2-Dichlorobenzene 10,000 8,000 2 J 6 5 U 5 U 5 U NA NA NA NA NA 5 U 5 U NA Naphthalene 6,000 6,000 1 13 54 5 U 5 U 5 U NA NA NA NA NA 1 J 1 J NA VPH C9-CIO Aromatics 5,000 4,000 750 3,800 100 U 100 U 100 140 120 100 U NA NA NA NA 100 U (ug/L) C9-C12 Aliphatics 1,000 20,000 620 1,100 100 U 100 U 100 U 100 U 100 U 100 U NA NA NA NA 100 U Ethylbenzene 30,000 4,000 62 5 U 5 U 5 U 5 U 5 U 5 U 5 U NA NA NA NA 5 U o-Xylene 6,000 50,000 8 12 5 U 5 U 5 U 5 U 5 U 5 U NA NA NA NA 5 U m,p-Xylene 6,000 50,000 5 U 36 5 U 5 U 5 U 5 U 5 U 5 U NA NA NA NA 5 U Naphthalene 6,000 6,000 11 48 5 U 5 U 5 U 5 U 5 U 5 U NA NA NA NA 5 U EPH C9-C18 Aliphatics 1,000 20,000 200 U 430 200 U 200 U 200 U 200 U 200 U 200 U 240 270 NA NA 200 U (ug/L) C19-C36 Aliphatics NS 20,000 200 U 200 U 200 U 200 U 200 U 200 200 U 200 220 200 U NA NA 200 U Cl l-C22 Aromatics 50,000 30,000 100 100 U 260 120 100 U 220 240 100 100 U 150 NA NA 100 U Naphthalene 6,000 6,000 5 U 19 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U NA NA 5 U Fluorene NS 3,000 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 8 NA NA 5 U SVOCs(ug/L) 2,4,6-Trichlorophenol 40,000 10,000 NA NA 19 10 U 10 U NA NA NA NA NA NA NA NA PCBs Aroclors(ug/L) NS 0.3 NA NA NA 0.2 U NA NA NA NA NA NA NA NA NA Metals Arsenic NS 400 20 U 20 U 20 U 20 U 20 U NA NA 20 U 21.9 20 U 24.2 24.9 NA Chromium NS 2,000 1 1 20 U L 20 U 25.6 20 U 20 U NA NA 1 20 U1 20 U 139 20 U 20 U NA Notes: All units in ug1L unless otherwise specified. ug1L-micrograms per liter NS-No Method 1 GW-2/GW-3 standards exist for this compound. U-Compound was not detected at specified quantitation limit J-estimated value Values in Bold indicate the compound was detected equal to or exceed the listed MCP Method 1 standards. (1)- Per the MCP VOC Analytical Method requirements,the results for these compounds are compared to the Method 1 standards for C9-C10 aromatic hydrocarbons_ VOCs-Volatile Organic Compounds VPH-Volatile Petroleum Hydrocarbons EPH- Extractable Petroleum Hydrocarbons SVOCs-Semivolatile Organic Compounds PCBs-Polychlorinated Biphenyls Supplemental Site Investigation Summary Report 3-9 October 2005 { 4.0 CONCLUSIONS The results of TRC's supplemental investigative activities are as follows: • The Site is underlain by layers of fine to coarse sand and fine to medium gravel fill material including limited amounts of anthropogenic (brick, concrete, wood, ash)material. Refusal occurred due to buried likely former building materials in the northern portion of the Site, in the area west of previously installed soil boring SB-1/MW-1. Nine(9) attempts were performed in this area with refusal encountered at approximately one foot bgs during unsuccessful attempts to install the proposed soil boring B-103/MW-103. • Depth to groundwater at the Site and within the immediate vicinity, as measured by TRC on October 11, 2005,ranged from approximately 8.8 feet bgs on the western side of Goodhue Street in MW-107 to approximately 36.7 feet bgs on the northwestern portion of the Site in MW-105. Based on the groundwater elevation survey performed by TRC personnel, groundwater appears to flow to the east-northeast. • One (1) approximately 20,000-gallon No. 6 fuel oil containing UST was located in the northwestern portion of the Site during test pitting activities. Based on field measurements conducted by TRC personnel and based on the tank's geometry, approximately 3,000 to 4,000 gallons of oil and water remain in the UST. • Benzo(a)anthracene,benzo(a)pyrene, benzo(b)fluoranthene, and indeno(1,2,3-cd)pyrene were detected at concentrations exceeding their MCP S-1/GW-2 or S-1/GW-3 standards in the field duplicate of soil sample B-101. Soil boring B-101 was installed on the western side of Goodhue Street. The detection of these compounds in soil in MW-101 does not appear to be related to the release of LNAPL detected in on-Site well MW-l. No other EPH or other analyzed constituents were detected in excess of their respective MCP Method 1 S-1/GW-2 or S-1/GW-3 standards in Site or immediate vicinity soil samples collected during this supplemental investigation. • LNAPL was again detected in MW-1 as well as in the newly installed MW-105, located i immediately adjacent to the potential source, the 20,000-gallon No. 6 fuel oil UST. LNAPL was not detected in wells MW-101 and MW108 installed in Goodhue Street to the northeast of on-Site well MW-1. Based on this information, LNAPL does not appear to be migrating from the property to downgradient locations. • Other than the detection of LNAPL in two Site groundwater monitoring wells,no other laboratory analyzed constituents were detected in Site or immediate vicinity groundwater above their respective GW-2 or GW-3 standards. l L-2005-487 4-1 November 2005 I 1 5.0 RECOMMENDATIONS The following recommendations are presented based on the results of TRC's supplemental investigative activities: f TRC recommends that the 20,000-gallon No. 6 fuel oil UST be emptied of its contents, decontaminated and removed and disposed off-Site under local and state regulations. UST decommissioning activities should be conducted, specifically,under the April 9, 1996 MADEP Policy#WSC-402-96 (Commonwealth of Massachusetts Underground Storage 1 Tank Closure Assessment Manual). • TRC also recommends that groundwater monitoring wells MW-1,MW-101,MW-102, MW- 104, MW-105 and MW-108 be monitored monthly to observe groundwater levels and the potential for migration of LNAPL from the property. • Based on the groundwater elevation contours developed as part of this supplemental investigation, an additional two (2) groundwater monitoring wells should be installed within Goodhue Street, immediately east of MW-1 in an effort to further evaluate the potential for off-Site migration of LNAPL. • Due to prior Site filling practices and difficult sloping terrain, TRC recommends that additional test pitting/trenching be conducted with track-mounted heavy excavation equipment in order to evaluate the presumed migration path of LNAPL from the on-Site 20,000-gallon UST. According to the City, the proposed future end use of the Site is unclear at this time. Any future i Site redevelopment plans must include provisions for the management of Site soils and remedial measures to address Site LNAPL under the rules and regulations stipulated in the MCP. A Phase I Initial Site Investigation Report and Tier Classification.for the Site is required to be submitted to the MADEP by December 28, 2005 in accordance with Section 310 CMR 40.0403(3) of the MCP. i L2005-487 5-1 November2005 I APPENDIX A SOIL BORING LOGS & WELL CONSTRUCTION DIAGRAMS E Supplemental Site Investigation Summary Report November 2005 ? BORING LOG ' RC PROJECT NUMBER 28367-0110-00000 BORINGIWELL NUMBER B-101/MW-101 LOCATION Former FlYnntan Site DATE DRILLED 6/14/05 DRILLING CONTRACTOR ADH CASING TYPEIDIAMETER 2-in.sch.40 PVC DRILLING METHOD Geoprobe Direct-Push SCREEN TYPE/SLOT 2"dia.PVC/0.010 slot SAMPLING METHOD Acetate Liner FILTER PACK TYPE Silica Sand GROUND ELEVATION SEAL TYPE TOP OF RISER — DEPTH TO WATER(Feet) 5.50 LOGGED BY R.Niles GROUND WATER ELEVATION REMARKS In Goodhue Street.'westem side F=� �Z > m J a(7 "o c E Ea n m JO Z) O o a O LITHOLOGIC DESCRIPTION n E WELL DIAGRAM . o't2 MO U c 2 u_ a U �` N 0 co JZ 21 • Bithuminous Concrete(Asphalt) 0 Uoncre e Gray,fine to medium Sand and crushed stone(Pavement surface seal - base fill Bentonite Dry,dark brown,fine to medium Sand,some fine gravel 1 b•:� 2-in.dia.PVC ri-Q- riser 2 3 ; 4 5 •�: Wet,tan/grey,fine to coarse Sand 0 Go 6 -101-4-8 0 m Sand 7 2-in.dia.PVC with 0.010 slot screen 36 8 i 9 10 11 12 PAGE 1 OF 1 I RC BORING LOG PROJECT NUMBER 28367-0110-00000 BORING/WELL NUMBER B-104/MW-104 LOCATION Former Flynntan Site DATE DRILLED 6/14/05 DRILLING CONTRACTOR ADH CASING TYPEIDIAMETER 2-in.sch.40 PVC DRILLING METHOD Geo robe Direct-Push SCREEN TYPE/SLOT 2"dia.PVC10.010 slot SAMPLING METHOD Acetate Liner _ FILTER PACK TYPE Silica Sand GROUND ELEVATION _ SEAL TYPE TOP OF RISER DEPTH TO WATER(Feet). 6.00 LOGGED BY . R.Niles GROUND WATER ELEVATION REMARKS South of SB-1/MW-1 north of"storage building" U) tr U a` J �ZCL w � w =O a�� m w m O UO a O0 LITHOLOGIC DESCRIPTION m a 16 E WELL DIAGRAM U Lu Q LL0 n � m Z �r Dry,tan,fine to medium Sand,trace gravel,ash/slag oncre a sea noted at approx.2'-4'interval Bentonite 1 30 o: a:Q: 0 2 Q° Z:z 3 : : � `li 104-2-4 o o.( m .4 �*° 5 .o: Moist-Wet,grey,fine to medium Sand,hydrocarbon odor and soil staining noted at 7.5'-8.5'interval 6 36 1 53.5 Sand 7 2-in.dia.PVC .with 0.010 slot screen 8 9 10 11 12 PAGE 1 OF 1 BORING LOG ITR� 7 PROJECT NUMBER 28367-0110-00000 BORING/WELL NUMBER B-106/MW-106 LOCATION Former Flynntan Site _ DATE DRILLED _6/14/05 DRILLING CONTRACTOR ADH CASING TYPE/DIAMETER 2-in.sch.40 PVC DRILLING METHOD Geo robe Direct-Push _ _ SCREEN TYPEISLOT 2"dia.PVC/0.010 slot SAMPLING METHOD Acetate Liner _ _ FILTER PACK TYPE Silica Sand GROUND ELEVATION SEAL TYPE 1 TOP OF RISER DEPTH TO WATER(Feet) _8.00 _ LOGGED BY R.Niles _ GROUND WATER ELEVATION REMARKS Asphalt covered parking area east of main bldg.garage door cn o U -- Uj c w Co >O cLi a ° O LITHOLOGIC DESCRIPTION n E WELL DIAGRAM o mo W•� < � LL 0 Z co m J Crushed concrete b..a:.o. Concrete seal nrc. Soil Cuttings 3 a.•. . Moist,tan,medium to coarse Sand,trace fine gravel 3 Bentonite ;•Q� 2-in.dia.PVC riser 5 48 a. :�. Moist,tan-gray, fine to medium Sand,hydrocarbon odor 4.3 noted 6 a. 7 8 � � s i 9 � Sand li•:• i 10 48 154 2-in.dia PVC i with 0.010 slot j screen 11 I i 12 i 13 14 I 15 PAGE 1 OF 1 RC BORING LOG PROJECT NUMBER 28367-0110-00000 -- BORINGIWELL NUMBER B-108/MW-108 LOCATION Former FI nntan Site DATE DRILLED 6/14/05 DRILLING CONTRACTOR ADH _ CASING TYPE/DIAMETER 2-1n.sch.40 PVC DRILLING METHOD Geo robe Direct-Push _ SCREEN TYPE/SLOT 2"dia. PVC/0.010 slot SAMPLING METHOD Acetate Liner — FILTER PACK TYPE Silica Sand GROUND ELEVATION SEAL TYPE TOP OF RISER _ DEPTH TO WATER(Feet) 5.50 LOGGED BY R.Niles -- GROUNDWATER ELEVATION _ REMARKS East side of Goodhue Street in roadway r � a-ca p m O OU c 0- �O LITHOLOGIC DESCRIPTION a j WELL DIAGRAM U Lu < C5 Z J • 3"of Asphalt,crushed stone underlying,some dry grey �•� sand. Concrete seal •�• Soil cuttings 1 Damp,tan-dark brown,fine to coarse Sand Bentonite 2 •24n.dia.PVC riser 3 4 36 2.2 Damp,dark brown,fine Sand and wood fragments(fill) 5 Wet,brown,fine to medium sand,trace gravel,trace wood ;b fragments(fill) 6 Sand 2-in.dia.PVC with 0.010 slot f 7 A:.: screen f 48 .7 8 0• Wet,brown,fine to medium Sand,trace silt 9 I 10 PAGE.1 OF 1 �RC BORING LOG PROJECT NUMBER 2836T-0110-00000 _ BORING/WELL NUMBER B-110 LOCATION Former Flynntan Site _ DATE DRILLED 6/14/05 DRILLING CONTRACTOR ADH _ CASING TYPEIDIAMETER DRILLING METHOD Geo robe Direct-Push _ SCREEN TYPE/SLOT SAMPLING METHOD Acetate Liner _ FILTER PACK TYPE GROUND ELEVATION SEAL TYPE _ TOP OF RISER DEPTH TO WATER(Feet) Not Encountered LOGGED BY N.Satam GROUNDWATER ELEVATION REMARKS Southeastern aved arkin area accessed from Boston Street � I � � U a� H-C7 Z > J =( '^ Q'Z5 Q.CO —1 p O 0 a Q O LITHOLOGIC DESCRIPTION 6 0 1O E WELL DIAGRAM p m0 W.� w P a CO ■ Asphalt i Moist,-tan,fine to medium Sand a 1 2 48 0 3 4 5 zD t- Xlight tan,fine to medium Sand,trace fine gravel 6 110-4-8 d.� o 41: ao T : :Q: 8 48 0 d' 9 10 PAGE 1 OF 1 RC BORING LOG PROJECT NUMBER 28367-0110-00000 BORINGIWELL NUMBER _B-112 LOCATION Former FI nntan Site _ DATE DRILLED _6/14/05 DRILLING CONTRACTOR ADH _ CASING TYPE/DIAMETER DRILLING METHOD Geo robe Direct-Push SCREEN TYPEISLOT SAMPLING METHOD Acetate Liner FILTER PACK TYPE _ GROUND ELEVATION __ _ SEAL TYPE TOP OF RISER _ DEPTH TO WATER(Feet) Not Encountered LOGGED BY N.Satam GROUNDWATER ELEVATION REMARKS Ad acent to SB-7 drum stora a area alongnorthern side of storage bldg.annex exterior w 00 Z) O o d n O LITHOLOGIC DESCRIPTION a E m E WELL DIAGRAM 0 m0 'U.5 2 9-� ii T a ran O c11 m Z J .¢' Concrete t- Moist,gray-black,fine to medium Sand,trace fine gravel, trace brick(fill),hydrocarbon odor and staining noted 1 0 36 -112-0-3 cv m 2 182 3 i 4 - 5 PAGE f OF 1