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HomeMy WebLinkAboutWI0400164_Application_20101028State of North Carolina ` Department of Environment and Natural Resources Division of Water Quality APPLICATION FOR PERMIT TO CONSTRUCT AND/OR USE A WELL(S) FOR INJECTION Type 5I Wells —In Situ Groundwater Rem ediation 1 Type 5T Wells — Tracer Injection • Do not use this form for remediation systems that extract contaminated groundwater, treat it, and reinject the treatA groundwater. • Submit TWO copies of the completed application and all attachments to the address on the last page of this form. -t • Any changes made to this form will result in the application package being returned. a I. H. Application Number (to be completed by DWQ): GENERAL INFORMATION: i . Applicant's Naine (generally the responsible party): TA Operating Corp. 2. Signing Official's Name*: Peter Ward Title: Senior Vice President. Construction * Signing Official must be in accordance with instructions in part VI on page 7. 3. Mailing address of applicant: 24601 Center Ridge Road City: Westlake State: Ohio Zip: 44145 Telephone number: 440 808 9100 Fax number: 440 808 3307 4. Property Owner's Name (if different from Applicant): IIPT TA Properties Trust _ 5. Property Owner's mailing address: 24601 Center Ridge Road City: Westlake State: Ohio Zip: 44145 f 6. Name and address of contact person who can answer questions about the proposed injection project: Name: Kent Littlefield Title: _ Sr. Hy_drogeologist-Program Manager Company: Benham Companies, LLC - SAIC Address: 63110 Allentown Boulevard City: Harrisburg State: PA "Lip: 17112 Telephone number: 717 9018843 Fax number: 717 901 8103 Email Address: kent.v.littlefieldgsaic.com PERMIT INFORMATION: 1. Project is: X New ( Modification of existing permit ( Renewal of existing permit without modification ( Renewal of existing permit with modification 2. if this application is being submitted for renewal or modification to an existing permit, provide: existing permit number and the issuance date For renewal without modifications, rill out sections I & 1I only, sign the certification on the last page of this form, and obtain the property owner's signature to indicate consent (if the applicant is not the owner). For all renewals, submit a status report including monitoring results ofall injection activities to date. Revised 6109 UIC-5I/5T Page I of 7 APPLICATION FOR PERF TO CONSTRUCT AND/OR USE A N L(S) FOR INJECTION Type SI Wells —In Situ Groundwater Remediation 1 Type 5T Wells —Tracer Injection Ill. INCIDENT & FACILITY DATA A. FACILITY INFORMATION 1. Facility name: TravelCenters of America -Greensboro Travel Center 2. Complete physical address of the facility: 1101 NC Highway 61 City: Whitsett County: Guilford State: North Carolina Zip: 27377 8, INCIDENT DESCRIPTION 1. Describe the source of the contamination: Diesel Fuel Dispensers, Soil impact discovered during diesel fuel dispenser replacements. 2. List all contaminants present in soils or groundwater at the site (contaminants maybe listed in groups, e.g., gasoline, diesel, jet fuel, fuel ❑i1, chlorinated ethenes, chlorinated ethanes, metals, pesticides/herbicides, etc): Diesel 3. Has LNAPL or DNAPL ever been observed at the site (even if outside the injection zone)? X Yes If yes, list maximum measured separate phase thickness 0.01 feet (N❑ If no, list maximum concentration of total VOCs observed at site: ppb 4. Agency managing the contamination incident: ( UST Section ( Superfund Section (including REC Program and DSCA sites) ( DWQ Aquifer Protection Section ( Solid Waste Section ( Hazardous Waste Section X Other: _Guilford County Environmental Health Department S. Incident managers name Mindy Lenard and phone number 336 6413771 6. Incident number or other site number assigned by the agency managing the contamination incident: Incident #30318 C. PERMITS List all permits or construction approvals that have been issued for the facility or incident, including those not directly related to the proposed injection operation: I. Hazardous Waste Management program permits under RCRA: None 2. DWQ Non -Discharge or NPDES permits: 3. County or DEH subsurface wastewater disposal permits: 4. Other environmental permits required by state or federal law:_ UST Certificate # 2010044780 Facility ID # 0-029186 Revised 6109 UIC-5115T Page 2 of 7 APPLICATION FOR PE__-_1T TO CONSTRUCT AND/OR USE A WELL(S) FOR INJECTION Type 51 Wells —In Situ Groundwater Remediation 1 Type 5T Wells —Tracer Injection IV. INJECTION DATA A. INJECTION FLUID DATA 1. List all proposed injectants. NOTE: Anv substance to be injected as a tracer or to promote in situ remediation must be reviewed by the Occupational and Environmental Epidemiology Section {GEES} of the Division of Public Health, Department of Health and Human Services. Review the list o 'cry ruved in evian or contact the UIC Program to determine if the injectants you are proposing have been reviewed by OEES Injectant: Regenesis, Oxygen Releasing Compound (ORC) (magnesium peroxide solid in fabric sock) Concentration at point of injection: 15pounds in each of two wells Percent if in a mixture with other injectants: Inj ectant: Concentration at point of injection: Percent if in a mixture with other injectants: Inj ectant: Concentration at point of injection: Percent if in a mixture with other injectants: Injectant: Concentration at point of injection: Percent if in a mixture with other injectants: 2. Source of fluids used to dilute or chase the injectants listed above: X None ( Municipal water supply ( Groundwater from private well or any well within '/4 mile of injection site ( Air ( Other: 3. If any well within '/{ mile of injection site, a private well, or surface water is to be used as the fluid source, supply the following information: See Attached Table a. LocationllD number of source:See Attachment A: Corrective Action Plan (CAP) b. Depth of source: See Attached c. Formation: See Attached d. Rock/Sediment type: See Attached e. In Attachment C, provide a current, complete chemical analysis of the water from the source well, including analyses for all contaminants suspected or historically recognized in soil or groundwater on the site. NOTE: If contaminated groundwater is to be used as the dilution or chase fluid, this is not the proper permit application form. You must apply for a closed -loop groundwater remediation permit using applicut_ion.lbrin G IVRS. Revised 6109 UIC-5115T Page 3 of 7 APPLICATION FOR PE..,..IT TO CONSTRUCT AND/OR USE A WELL(S) FOR INJECTION Type 5I Wells — In Situ Groundwater Remediation / Type 5T Wells — Tracer Injection B. PROPOSED OPERATING PARAMETERS Duration of Injection: 1 Event a. Maximum number of separate injection events: 1 b. Expected duration of each injection event: 1 year c. Expected duration between events (if more than one event): 2. Injection rate per well: 0 gallons per minute (gpm) 3. Total Injection volume: 0 gallons per day (gpd); 15pounds per event if separate events) 4. Injection pressure: 0 pounds/square inch (psi) 5. Temperature at point of injection: Ambient Temp.._ °F 6. Briefly describe how the above parameters will be measured and controlled: Semiannual groundwater samNine will be conducted at wells CSAMW-1. CSAMW-2. CSAMW-3, CSAMW4 , and DDMW- 2. Water quality measurements will be recorded. 7. Estimated hydraulic capacity of the well: 0.5 gpm C. INJECTION WELL CONSTRUCTION DATA Injection will be via: X Existing well(s) proposed for use as an injection well. Provide the data in (2) through (6) below to the best of your knowledge. { Proposed well(s) to be constructed for use as an injection well. Provide the data in (2) through (6) below as proposed construction specifications. 2. Well Drilling Contractor's Name: Landprobe.LLC _ NC Well Contractor Certification number: 2858 3. Date to be constructed: 3/25/2009 Number of borings: 2 Approximate depth of each boring (feet): CSAMW-3, 25ft DDMW-2, 30ft 4. Screened interval/injection interval of injection wells: Depth: 10 to 25 feet below ground surface (if multiple intervals, indicate shallowest and deepest depth). Depth: 15 to 30 feet below ground surface (if multiple intervals. indicate shallowest and deepest depth), 5. Well casing (N/A if injection is through direct push rods): Type: X PVC ( Stainless steel( Other: Casing depth: 0 to 10 ft. Casing depth: , 0 to 15 ft. 6. Grout (NIA if injection is through direct push rods): Type: (X) Cement ( X) Sentonite ( Other: Grout depth: 0 to 7.5 ft. Revised 6/09 UIC-51/5T Page 4 of 7 APPLICATION FOR PERMIT TO CONSTRUCT AND/OR USE A WELL(S) FOR INJECTION Type 5I Wells -- In Situ Groundwater Remediation / Type ST Wells — Tracer Injection V. ATTACHMENTS As required in Section V. of the Application to use Type 51 Wells for Injection, Additives, Tracers, the following items are provided in Attachment A: Corrective Action Plan (CAP). Greensboro Travel Center, Incident Number 30318, by Benham Companies LLC, dated May 28, 2010. The CAP was prepared, signed, and sealed by a licensed geologist by as required by G.S. 89E-13. SITE HISTORY Page ES-1 and 2 and Pages 1-4 provide a brief description of the site history including: (1) site usage historically and present. (2) origin of the contamination, (3) previous remedial action(s). HYDROGEOLOGIC DESCRIPTION Pages 1, 9-12, Figures 3-5, Table 4, and Appendix A provide a hydrogeologic description, soils description, and cross section of the subsurface to a depth that includes the known or projected depth of contamination including: (1) the regional geologic setting; (2) significant changes in lithology; (3) the hydraulic conductivity, transmissivity, and specific yield of the aquifer to be used for injection, including a description of the test(s) used to determine these parameters; and (4) the depth to the mean seasonal high water table. INJECTION FLUID COMPOSITION Pages 16-17 and Page 19 describes the methodology of the proposed placement of powdered magnesium peroxide in fabric socks called oxygen releasing compound (ORC). Magnesium peroxide is a fine white to off-white powder that releases oxygen by breaking down at a controlled rate in water. Magnesium peroxide is environmentally benign and widely used in the cosmetic, QLncultural, pharmaceutical, and environmental industries. Magnesium peroxide is used in the hioremediation of contaminated so) 11 and to reduce contaminant levels in groundwater. Attachment B contains Material Safety Data Sheet (MSDS) for magnesium peroxide. INJECTION RATIONALE Pages 13-17 discuss the rationale for selecting the injectants. Pagesl8-20 and Appendix B specify the concentrations proposed for injection, including: (1) goals of the injection project; (2) explanation and/or calculations of how the proposed injectant volume and concentration were determined; (3) a description of the reactions between the injectants and the contaminants present including specific breakdown products or intermediate compounds that may be formed by the injection; and (4) summary results of modeling or testing performed to investigate the injectant's potential or susceptibility to change (biological, chemical or physical) in the subsurface. INJECTION PROCEDURE AND EQUIPMENT There is no system construction proposed; therefore, no plans or lists of materials are necessary. Pages 18-20 provide a detailed description of all planned activities related to the proposed injection including: (1) operation procedures; and (2) injection schedule. Revised 6/09 UIC-5I/5T Page 5 of 7 APPLICATION FOR PERMIT TO CONSTRUCT AND/OR USE A WELL(S) FOR INJECTION Type 5I Wells — In Situ Groundwater Remediation 1 Type 5T Wells — Tracer Injection MONITORING PLAN Page 19 provides a plan for monitoring the results and effectiveness of the injection, including: (1) a list of existing and proposed monitoring wells to be used; (2) a list of monitoring parameters and analytical methods to be used; and (3) a schedule for sampling to monitor the proposed injection. WELL DATA Tables 3 and 4 and Attachment C provide a tabulation of existing or abandoned wells within '/, mile of the injection well. Attachment C details site monitoring wells and wells proposed for use as injection wells. Tables include a description of each well's use and available information of depth, screened or open depth interval, and well construction as available. MAPS The figures 1-9 in the CAP include scaled site -specific maps: (1) Location map }used on most recent USGS 7.5' topographic map of the area (Figure 1 }. (2) Site map including: a. generalized property boundaries and buildings (Figure 2); b. existing injection wells CSAAV-3 and DDMW-2 (Figures 2 and Figures 6-9); c. a separate on -site diesel groundwater plume is present in the underground storage tankfield backfill, and being remediated under Incident 20054; No other (offsite) existing sources of potential or known groundwater contamination, waste storage, treatment, or disposal systems are known within %4 mile of the injection wells. d. surface water bodies within'/4 mile of the injection wells include two unnamed tributaries to Little Alamance Creek to the south and east (Figure 2); and e. existing wells within ''/a mile of the injection well(s) which penetrate the proposed injection zone are shown (Figure 2) including monitoring wells and wells proposed for use as injection wells. No abandoned wells are known to exist. (3) Potentiometric surface map(s) (Figures 7 and 8) including: a. direction of groundwater movement b. existing and proposed monitoring wells c. existing and proposed injection wells (4) Contaminant plume map(s) (Figure 9) including: a. the horizontal extent of the contaminant plume, including isoconcentration lines b. existing monitoring wells and proposed injection wells c. no additional monitoring or injection wells are proposed (5) Cross -sections) are shown on Figures 4 and 5. These show the depths of: a. major changes in lithology b. existing monitoring wells and proposed injection wells c. conceptual horizontal and vertical extent of the contaminant plume is shown on Attachment D. Attachment A: Corrective Action Plan (CAP), Greensboro Travel Center, Incident Number 30318; Attachment B: Material Safety Data Sheet (MSDS) for magnesium peroxide; Attachment C: Tabulation of existing or abandoned wells within 'k/4 mile of the injection well; and Attachment D: Conceptualized horizontal and vertical extent of the contaminant plume in cross-section. Revised 6/09 UIC-5I15T Page 6 of 7 V APPLICATION FOR PERMIT TO CONSTRUCT AND/OR USE A WELL(S) FOR INJECTION Type 51 Wells — In Situ Groundwater Remediation / Type 5T Wells — Tracer Injection VI. CERTIFICATION (to be signed as required below or by that person's authorized agent) NCAC 15A 2C .0211(b) requires that all permit applications shall be signed as follows: 1. for a corporation: by a responsible corporate officer 2. for a partnership or sole proprietorship: by a general partner or the proprietor, respectively 3. for a municipality or a state, federal, or other public agency: by either a principal executive officer or ranking publicly elected official 4. for all others: by the well owner. If an authorized agent is signing on behalf of the applicant, then supply a letter signed by the applicant that names and authorizes their agent. I hereby certify under penalty of law that I have personally examined and am familiar with the information submitted in this document and all attachments therein, and that, based on my inquiry of those individuals immediately responsible for obtaining said information, I believe that the information is true, accurate, and complete. I am aware that there are penalties, including the possibility of fines and imprisonment, for submitting false information. I agree to construct, operate, maintain, repair, and if applicable, abandon the injection well(s) and all related appurtenances in accordance with the approved specifications and conditions of the Permit. Printed Name and Title: L WIC �_ V (,3 SYAVCV0A) C K Signature: / Date: I &Y-0 VII. CONSENT OF PROPERTY OWNER (if the property is not owned by the applicant) ("Owner" means any person who holds the fee or other property rights in the well being constructed. A well is real property and its construction on land shall be deemed to vest ownership in the land owner. in the absence of contrary agreement in writing.) As owner of the property on which the injection well(s) are to be constructed and operated, I hereby consent to allow the applicant to construct each injection well as outlined in this application and agree that it shall be the responsibility of the applicant to ensure that the injection well(s) conform to the Well Construction Standards (Title 15A NCAC 2C .0200). John G. Murray President Printed Name and Title: Signature - / Date: Submit TWO copies of the completed application package, including all attachments, to: UIC Program Aquifer Protection Section North Carolina DENR-DWQ 1636 Mail Service Center 1 Raleigh, NC 27699-1636 Telephone (919) 733-3221 Revised 6109 UIC-5115T -� Pao 7of7 AT, �67, NCDENR North Carolina Department of Environment and Natural Resources Beverly Eaves perdue, Governor Division of Waste Management Dee Freeman, Secretary tJSI" Section Dexter R. Matthews, Director July 12, 2010 TravelCenters of America Attu: Mr. James Schenker 24601 Center Ridge Road, Suite 200 Cleveland, OH 44145 Re: Notice of Regulatory Requirements 15A NCAC 2L .0407(b) Risk -based Assessment and Corrective Action For Petroleum Underground Storage Tanks TravelCenters of Amcrica-B 1101 NC 61, Whitsett Guilford County Risk Classification: High Flanking: 180D Dear Mr. Schenker: The Corrective Action Plan (CAP) received on June 3, 2010 has been reviewed by the UST Section, Winston-Salem Regional Office. The plan and the schedule are hereby approved, with the following modifications. groundwater samples are to be analyzed by EPA methods 602 and 625 annually and by MADEP EP11 and VPH methods semiannually, If EPA methods 602 or 625 detect contaminants above the 2L standards, that analysis method will be required during semiannual sampling. Failure to implement the plan and schedule in the manner and time specified may result in the assessment of civil penalties and/or the use of other enforcement mechanisms. if coverage under the Leaking Petroleum Underground Storage Tank Cleanup Funds (Funds) has preNrio►esly gr nited or is anticipated, failure to implement the plan and schedule in the manner and time specified in Vx CAP may result in potential loss of coverage. failure to practice cost effective implevientatior_ .)f the plan, including soil and groundwater monitoring and operation and maintenance of any rc—meoini systeri(s) until the date oa which cleanup goals are met, will also jeopardize reimbursement of reasoual-Ic and :iecessary costs from the Funds. Effective October 1, 2004, the Department requires that all work following the submittal of the Limited Site Assessment Report (Title 15A NCAC 2L .0405) be preapproved if State Trust Fund reimbursement is anticipated. To comply with this requirement, a completed Prcapproval/Claim Authorization Form, encompassing the required remedial activities, must be received in this office within 14 days of the dale of this letter. Upon completion of the preapproved activities, you should submit your claim promptly. Reimbursement funds are budgeted based on completed preapprovals, but lengthy delays in reimbursement can occur if claims are not submitted immediately following work completion. An Equal Qpportan ly I AtfirnvM Actor Employer • 54 % Rei*;1ed l 46 % PW Q)iv1_tu",,.r Paper If you have any questions regarding trust fund eligibility or reimbursement from the Commercial or Nonconomercial L.ealaing Petroleum (Underground Storage'rank Cleanup Funds, please contact the UST Smtion Trust Fund Branch at (919) 733-8486. if you have any questions regarding the actions that must be taken or the ruins mentioned in this letter, please contact Mindy L,epard at (336) 641-5557 or the address listed below for Guilford County Environmental Health_ Sincerely, Cindye.Rirttoul, L.G. Regional Supervisor Winston-Salem Regional Office i.1ST Regional Offices Asheriile (A RU) - 2440 US Highway 70, Swannanoa, NC 28778 (828) 296-4500 F *vpttevil) e i FA VI - 225 Green Strcet, Suite 714, Systel Building, Fayetteville- 14C 28301 (910) 433-3300 Mooresville (SX-R) - • 610 East Center Avenue, Suite 301, Mooresville, 111C 28115 (704) 663-16" ,. Raleigh (RRO) - 1628 Mail Service Center, Raleigh, NC 27699 (919) 7914200 Washington (WA5) - 943 Washington Square Mail, Washington, NC 27889 (252) 946-6481 Wilmington (HVQ.)- 127 Cardinal Drive Extension, Wilmington, NC 28405 (910) 796-7215 Winston-Salem (W5) - 585 Woughtown Street, Winston-Salem, NC 27107 (336) 771 5000 Guilford Cnaoty Eeviroamental Health, 400 West Marker Street, Suite 300, Greensboro, NC 27401, (336) 641-3771 FTP7 CAP appn­.ai NOR0209,dol An Equal Wpotinity 1 A#frrma4ve Action Employer . 50 %. Racyded l 10 % Post Consumbr Paper eBSPJHAM an SAIL company D December 13, 2010 c mC � W rn -jk= Mr. David Goodrich Ca _J� Aquifer Protection Program North Carolina DENR a. C] 2728 Capital Boulevard DO Raleigh, NC 27604 r, RE: Application for Permit to Use a Well for Injection Greensboro Travel Center 1101 NC 61, Whitsett, Guilford County, NC Incident Number 30813 Dear Mr. Goodrich: On behalf of TravelCenters of America (TA), Benham Companies, LLC submits two requested copies of the Permit to Construct and/or Use a Well(s) for Injection (the Application) and Corrective Action Plan (CAP) for remediating a diesel fuel release at the captioned property. The geologic information requested in Section V of the Application is contained by the relevant passages in the CAP as cited in the Application. We trust submittals will meet your approval. Please respond to the undersigned with any questions or your approval. Respectfully, BENHAM COMPANIES, LLC Kent V. Littlefield, P. G. cc: Ms. Emily F. Gloeckler, P.G., TravelCenters of America 6310 Allenlown BoulevardlHarrishurg, PA 171121Phone 717-901-88431Fax 717-901-81031www.saic.com State of North Carolina Department of Environment and Natural Resources Division of Water Quality APPLICATION FOR PERNIIT TO CONSTRUCT AND/OR USE A WELL(S) FOR INJECTION Type 51 Wells — In Situ Groundwater Remediation l Type 5T Wells — Tracer Injection ■ Do not use this form for remediation systems that extract contaminated groundwater, treat it, and reinject the treated groundwater. • Submit TWO copies of the completed application and all attachments to the address on the last page of this form. • Any changes made to this form will result in the application package being returned. Application Numher (Io be rurnplered by DWQ): _ 1. GENERAL INFORMATION: C—) =�-c r�-3 I . Applicant's Name (generally the responsible party): TA Operating Corp. 2. Signing Official's Name': Peter Ward Title: Senior Vice President, Construction r" * Signing Official must be in accordance with instructions in part VI on page 7. -�-r 3. Mailing address of applicant: 24601 Center Ridge Road rV Ln City: Westlake State: Ohio Lip: 44145'7' "' Telephone number: 440 808 9100 Fax number: 440 808 3307 4, Property Owner's Name (ifdillicrent from Applicant): lIPT_TA Properties '1' 5. Property Owner's ma it ing address: 24601 Center Ridgf Road City: Westlake State: Ohio Zip: 44145 b. Name and address of contact person who can answer questions about the proposed injection project: Name: Kent Littlefield Title: Sr. Hydrogeoiogist-Program Manager Company: Benham Companies, LLC - SAIC Address: 6310 Allentown Boulevard City:w Harrisburg State: PA Zip: 17112 -telephone number: 717 901 8843 Fax number: 717 901 8103 Email Address: kent.v.littlefieidC�7saic.com It. PERMIT INFORMA"rION: I. Project is: X New ( Modification of existing permit ( Renewal of existing pennit without modification ( Renewal of existing permit with modification 2. If this application is being submitted for renewal or modification to an existing permit, provide: existing permit number and the issuance date For renewal without modifications, fill out sections I & AI only, sign the certification on the last page of this form, and obtain the property owner's signature to indicate consent (if the applicant is not the owner). For all renewals, submit a status report including monitoring results of all injection 'activities to date. Revised 6109 UIC-5115T Page 1 cif 7 APPLICATION FOR PERMIT TO CONSTRUCT AND/OR USE A W ELLtSy FOR MECTION Type 51 Welts — in Situ Ground% ater Remediation / Type 5T Wells — Tracer Injection M. INCIDENT & FACILITY' DATA A. FACILITY INFORMATION I . Facility name: Tra elCenters of America -Greensboro Travel Center 2. Complete physical address of the facility: _I101 NC_Hi hway 61 City: whitsett County: Guilford State: North Carolina /;p: 27377 B. INCIDEN'f_DES!RI_PTION I. Describe the source of the contamination: Diesel Fuel Dispensers; Soil impact discovered during diesel fuel dispenser replacements. _ 2. List all contaminants present in soils or groundwater at the site (contaminants may be listed in groups, e.g., gasoline, diesel,_jet fuel, fuel oil, chlorinated ethenes, chlorinated ethanes, metals, pesticides/herbicides, etc): Diesel 3, Has LNAPL or DNA PI, ever been observed at the site (even if outside the injection zone)" X Yes If yes, list maximum measured separate phase thickness 0.01 feel ( No If no, list maximum concentration of total VOCs observed at site: 4. Agency managing the contamination incident: ppb ( UST Section ( Superfund Section (including REC Program and DSCA si(es} ( DWQ Aquifer Protection Section ( Solid Waste Section ( Hazardous Waste Section X Other: Guilford County Environmental Hen lth Depsrimen1 5, Incident managers name Mindy Legurd and phone number 336 6413771 6. Incident number or other site number assigned by the agency managing the contamination incident: Incident #30318 C. PFRMITS List all permits or construction approvals that have been issued for the facility or incident, including those not directly related to the proposed injection operation: L Hazardous Waste Management program permits under RCRA: None 2. DWQ Nun -Discharge or NPDES permits: 3. County or DE subsurface wastewater disposal permits: 4. Other environmental permits required by state or Federal law: _ LST Certificate # 20_1.0044780 Facility I # 0-0j9186 Revised 6/09 UIC-51/5T Page 2 of'7 APPLICATION FOR PER14IT TO CONSTRUCT AND/OR USE A WELL(S) FOR INJECTION Type 51 Wells — In Situ Groundwater Retnediarion 1 Type 5T Wells —Tracer Injection IV. INJECTION DATA A. [NJECTION FLUID DA TA L List all proposed injectants. .VOTE: .4ny ,suh.stance to be in)Ected as rx tracer or to promote in situ remediation must be reviewed by the Oc•cupationa' and Environmental Epidemiology Section iOEESI of the Division nl'Public Health. Department of Health ap,d !Human Services. Review the lirr rr r�titirr�vvLl r►rie�et�trrt.► ear contact [he [alC' Prrrgrum to rlctermirre if' the injectants vou are proposing have been reviewed by GEES. Injectant: Regenesis, Oxygen Releasing Cote and (ORC) (mx nesium pEroxide solid in fabric sock Concentration at point of injection: 15 Aaunds in each of two wells _ Percent if in a mixture with other injectants: Injectant: Concentration at point of injection: Percent if in a mixture with other injectants: Injectant: Concentration at point of injection: Percent if in a mixture with other injectants: Injectant: Concentration at F-ilint of injection: Percent if in c mixture with other injectants; Source of fluids used to dilute or chase the injectants listed above: X None ( Municipal water supply ( Groundwater from private well or any well within '/. mile of injection site ( Air ( Other: 3. If any well within '/4 mile of injection site, a private well, or surface water is to be used as the fluid source, supply the following information. See Attached Table a. Location/ID number of source: See Attachment A: Correctise Action Plan C'AP b. Depth of source: See Attached T c. Formation: See Attached d. RocklSediment type: See Attached e. In Attachment C, provide a current, complete chemical analysis of the water from the source well, including analyses for all contaminants suspected or historically recognized in soil or groundwater on the site. .VOTE If contaminated groundwater is to he used us the dilution or chase fluid, this is not the proper permit application form. You must applyfor a closed -loop groundwater remediation permit using (U)nlicutwq urm (;11'R.Y. Revised h,09 UIC•5115T Page 3 of 7 APPLICATION FOR PERMIT TO CONSTRUCT AND/OR USE A WELL(S) FOR INJECTION Type 51 Wells — In Siru Groundwater Remediation I Type 5T Wells —Tracer Injection Ei. PROPOSED OPERATING PARAMETERS 1. Duration of Injection: _ I Event a. Maximum number of separate injection events: I b. Expected duration of each injection even[: I year c. Expected duration between events (if more than one event): 2. Injection rate per well. 0 gallons per minute (gpm) 3. Total Injection volume: 0 gallons per day (gpd), 15 ounds per event (it separate events) 4. Injection pressure:_0. pounds/square inch (psi) 5. 1'emperature at point of injection: Ambient Temp. _ `F 6. Briefly describe how the above parameters will be measured and controlled: _Semiannual groundwater sampliag will be conducted at we_lsCSAMW-1, CSAMW-2, CSAMW-3, C'SA.%IW-4 , and Dl)NIW- 2s Water gualitY measurements will be recorded._ 7. Estinldted hydraulic capacity of the well' 0.5 gpm C. INJECTION WELL CONSTRUCTION DATA 1. Injection will be via: x Existing wells) proposed for use as an injection well. Provide the data in (2) through (6) below to the best of your knowledge. ( Proposed well(s) to be constructed fir use as an injection well. Provide the data in (2) through 1.6) below as proposed construction specifications. 2. Well Drilling Contractor's Name: Landprobe, LLC NC Well Contractor Certification number. 2858 3. Date to be constructed: 3/25/2004 Number of borings: 2 Approximate depth of each boring (feet): CSAMW-3 25ft DDMW-2 0 t 4. Screened intervalltnjection interval of injection wells: Depth: _ 10 to 25 feet below ground surface (it'multiple intervals, indicate shallowest and deepest depth). Depth: to 30 feet below ground surface (if multiple in(ervals, indicate shallowest and deepest depth]. 5. Well casing (NIA if injection is through direct push rods): Type: X PVC ( Stainless steel( Other: Casing depth: _ Q to 10 ft. Casing depth: 0 to 15 ft. 6. Grout (NIA if injection is through direct push nods): Type: ( x) cement ( x) 8entonite ( Other. Grout depth: 0 to 7.5 ft. Revised 6-04 UIC-5115T Page 4 of 7 APPLICATION FOR PERMIT TO CONSTRUCT AND/OR USE A WELL(S) FOR INJECTION Type 51 Wells — In Situ Groundwater Rernediation /'Type 5T Wells — Tracer Injection V. i TACHMF.NTS As required in Section V. of the Application to use Type 51 Wells for Injection, Additives, Tracers, the following items are provided in Attachment A: CorrEe.•rive .Anion Plan (CAP). Gree►tyburo Travel Cenrer, Incident ,Vumber .10318, by Benham Companies LLC, dated May 28, 2010. The CAP was prepared, signed, and sealed by a licensed geologist by as required by G.S. 89EE-13. SITE HISTORY Page ES-1 and 2 and Pages ] A provide a brief description ofthe site history including: (1) site usage historically and present, (2) origin of the contamination, (3) previous remedial action(s). IiYDROGEOLOGIC DESCRIPTION Pages 1, 9-12, Figures 3-5. Table 4, and Appendix A provide a hydrogeologic description, soils description, and cross section of the subsurface to a depth that includes the known or projected depth of contamination including: (I) the regional geologic setting; (2) significant changes in lithology; (3) the hydraulic conductivity, transmissivity, and specific yield of the aquifer to be used For injection, including a description of the test(s) used to determine these parameters; and (4) the depth to the mean seasonal high water table. INJECTION FLUID COMPOSITION Pages 16-17 and Page 19 describes the methodology of the proposed placement of powdered magnesium peroxide in fabric socks called oxygen releasing compound (ORC). Magnesium peroxide is a fine white to off-white powder that releases oxMgn by breaking down at a controlled rate in water. Magnesium peroxide is environmentally benign and widely used in the cosmetic, .tat�uligrA, phinruceutic:tl, and environmental industries. Magnesium peroxide is used in the bitiremediiation rf contaminated soil and to reduce contaminant levels in Upund" ater. Attachment B contains Material Safety Data Sheet (MSDS) for magnesium peroxide. INJECTION RATIONAL Pages 13-17 discuss the rationale for selecting the injectants. Pages 18-20 and Appendix B specify the concentrations proposed for injection, including: (1) goals of the injection project; (2.) explanation and/or calculations of how the proposed injectant volume and concentration were determined; (3) a description of the reactions between the injectants and the contaminants present including specific breakdown products or intermediate compounds that may be formed by the injection; and (4) summary results of modeling or testing performed to investigate the injectant's potential or susceptibility to change (biological, chemical or physical) in the subsurface. INJECTION PROCEDURE AND E UIPMENT There is no system construction proposed; therefore, no plans or lists of materials are necessary. Pages 1 S-20 provide a detailed description of all planned activities related to the proposed injection including: (1) operation procedures; and (2) injection schedule. Revised t),09 UIC-5I/5T Page 5 of 7 APPLICATION FOR PERMITTO CONSTRUCT AND/OR USE A WELL(S) FOR INJECTION Type 51 Wells — In Situ Groundwater Rernediatioa 1 Type 5T Wells — Tracer Injection MONITORING PLAN Page 19 provides a plan for monitoring the results and effectiveness of the injection. including: (1 ) a list of existing and proposed monitoring wells to be used; (2) a list of monitoring parameters and analytical methods to be used; and (3) a schedule for sampling to monitor the proposed injection. WELL DATA Tables 3 and 4 and Attachment C provide a tabulation of existing or abandoned ►%ells within `/4 mile of the injection well. Attachment C details site monitonng wells and wells proposed for use as injection wells. Tables include a description of each well's use and available information of depth. screened or open depth interval, and well construction as available. MAPS Ilse figures [ 1-9] in the CAP include scaled. site -specific maps: (1) Location map based on most recent USGS 7.5- topographic map of the area (Figure I ) (2) Site map including: a. generalized property boundaries and buildings (Figure 2); L existing injection wells CSAW-3 and DDMW-2 (Figures 2 and Figures 6-9); c, a separate on -site diesel groundwater plume is present in the underground storage tanklield backfi11. and being remediated under Incident 20054; No other (offsite) existing sources of potential or known groundwater contamination, waste storage, treatment, or disposal systems are known within 'I, mile of the injection wells. d. surface water bodies within 'A mile of the injection wells include two unnamed tributaries to Little Alamance Creek to the south and east (Figure 2), and e. existing wells within'/. mile of the injection we]l(s) which penetrate the proposed injection zone are shown (Figure 2) including monitoring wells and wells proposed for use as injection wells. No abandoned wells are known to exist. (3) Potentiometric surface map(s) (Figures 7 and 3) including: a. direction of groundwater movement b. existing and proposed monitoring wells c, existing and proposed injection wells (4) Contaminant plume map(s) (Figure 9) including. a. the horizontal extent of the contaminant plume, including isoconcentration lines b. existing monitoring wells and proposed injection wells c. no additional monitoring or injection wells are proposed (5) Cross -sections) are shown on Figures 4 and 5. These show the depths of: a. major changes in lithology b. existing monitoring wells and proposed injection wells c. conceptual horizontal and vertical extent of the contaminant plume is shown on Attachment D. Attachment A. Corrective Action Plan (CAP), Greensboro Travel Center, Incident Number 30318; Attachment B. Matenal Safety Data Sheet (MSDS) for magnesium peroxide; Attachment C: Tabulation ❑fcxisting or abandoned wells within '/+ mile of the injection Weil; and Attachment D: Conceptualircd horizontal and vertical extent of the contaminant plume in cross-section. Revised 6/09 UIC-51/5T Page 6 of 7 APPLICATION FOR PERMIT'f O CONSTRUCT AND/OR USE A WELL(S) FOR INJECTION Type 51 Wells — In Sirs Groundwater Remediation / Type 5T Wells — Tracer IoJection VI. CERTIFICATION (to be signed as required below or by that person's authorized agent) NC'AC 15A X _021 1(b) requires that all permit applications shall be signed as follows: l . for a corporation: by a responsible corporate officer 2. for a partnership or sole proprietorship: by a general partner or the proprietor, respectively 3, for a municipality or a state, federal, or other public agency: by either a pnncipal executive officer or ranking publicly elected official 4. for all others: by the well owner. If an authorized agent is signing on behalf of the applicant, then wppl} a letter Signed by the applicant that names and authorizes their agent. 1 hereby certify under penalty of law that I have personally examined and am familiar with the intormation submitted in this document and all attachments therein:, and that, based on my inquiry of those individuals immediately responsible for obtaining said information, I believe that the information is true, accurate, and complete. I am aware that there are penalties, including the possibility of tines and imprisonment, for submitting false information. I agree to construct, operate, maintain, repair, and if applicable, abandon the injection well(s) and all related appurtenances in accordance with the approved specifications and conditions of the Permit. Printed Name and "Title: Lk P• 4(11 �V1 Signature: Date: `11111(e) VII. CONSENT OF PROPERTY OWNER (if the property is not owned by the applicant) ("Gxriier - uwans army person who holds the fee or other property rights in the well being construc•ted..4 well is real properry and its construction on land shall he deemed to vest vwnerchip in the land owner, in the absence Qf contrary agreement in wrifing. ) As owner of the property on which the injection well(s) are to be constructed and operated, I hereby consent to allow the applicant to construct each injection well as outlined in this application and agree that it shall be the responsibility of the applicant to ensure that the injection well(s) conform to the Well Construction Standards (Title 15A NCAC 2C ,0200). John G. Murray President Printed Name and Title: ,y Signature, - Date: Submit TWO copies of the completed application package, including all attachments, to., a UIC Program •• �. Aquifer Protection Section Olt to North Carolina DENR-DWQ � 1636 Mail Service Center Raleigh, NC 27699-1636 Telephone (919) 733-3221 Revised 6109 UIC-51i5T Page 7 of 7 31 $ t � s } r I.In.11wl (*@4) 1p 1,111111' 11111J1�,�1�1��111JIJ,��� �� i Illlll,lj�1�1�111JI1'l 11 i l ,�-}-f-:fi,- i , - 1�����,,�,��1l1JIJ1l� +t �IJ111J1J 11'I�J11,l,Jili 1JIl1JIJllr1'1�l '- : � • + sIJ'11111'1111J,J1JIl1J11111 1 1' 11111 �{ ' + ; r I IJ1J,1,1,+1 l 11J,I,1,I11111J1j1�,�,�1� ii i�� i 1111111111�Jllll'J1J J�II JJIJ �:+ � `•+ { IJ111JIJ11'Iy I111111111111jIj 1111111J ,; i � + illllllll JJl11Jl�Jj,,1,+,•+ l I l l I J l,l j�l 11 11111 �1�11I,� � 1,! ii � 111111 I,111111' + 1�IJj111111'ljlll/'JIIIIIJ1J11j��1111111r �! � i ! + ,11JJ� �11111 Jllli:+•• � 111,11111J•11111 Jl I IIIlJ1111 jrlllJ11111 J1Jllll'l'Jrlll'1'Jr�-i-`�i'a i IIJIl1 J`J111111111111111 :+ � •+ Il1rI J111/11 Y ! 11111111/jljllllllllllll I ! • + 11111 jl','1111111,1,1,1111J1J1�1�1 j1�1� + I;1 �1�I�111 J'111'J'Jti li 1� 1� 11 �1�1 �10/v 11'1'll�'1'�r�l'1'J'17 VI �I111111,11J,J,J111 �111,,1�11J111111 I,;: Il 11J11,J, ��'� 11 11 1 1',l,'r,JI Jll J �Jllrl�llllllJ; � �lili�I J111 J1l'1�1 ';'j l�llllJ111� � �1�1�1 1 ��111111 `II;�JIJ I1 �r111�J1 J111 J'i 1111 � 111 1 r1 , 1 1 1111; � � 1 111'l'1'l �l'l1 J1 111111IlIJIIIIJJJl1 '1'lJl'1'llllll J I l l l 1111 1111,,,,11- +1111JII1J�l11i�i11JillllllJ'1'lll��'I�: � aC 0 M w n r w V x BErJHAM an aA1C company CORRECTIVE ACTION PLAN SITE IDENTIFICATION DATE OF REPORT: 5/28/ 10 - FACILITY I.D.: 0-029185 ; INCIDENT NO.: 30318 SITE NAME: TravelCenters of America -Greensboro Travel Center LOCATION: 1101 NC Highway 51, Whitsett, Guilford County, North Carolina SITE PRIORITY RANK: Hieh (due to water supply well within 1.000 feet of the site) LAND USE CATEGORY: Commercial CURRENT UST OWNER, OPERATOR, AND OCCUPANT: TA Operating CoM. ADDRESS: 24601 Center Ridge Road, Westlake, Ohio 44145 PHONE: 440-808-7358 PROPERTY OWNER: HPT TA Properties Trust ADDRESS: 24601 Center Ridge Road, Westlake, Ohio 44145 PHONE: 440-808-7358 CONS U LTANTIC ONT RACTOR : Benham Companies, LLC ADDRESS: 6310 Allentown Boulevard Harri sbuEg. PA 17112 PHONE: 717-901-8100 RELEASE INFORMATION DATE OF RELEASE: LATITUDE: LONGITUDE: ESTIMATED QUANTITY OF RELEASE: SOURCE OF RELEASE: June 20 2006 330 03' 51" N 790 33' 50"W Unknown Diesel Fuel Dispensers (Soil impact discovered durinE diesel fuel disnenser replacements) SIZE AND CONTENTS OF UST SYSTEMS FROM WHICH THE RELEASE OCCURRED: Five 10 000- aflon diesel fuel USTs I, Kent V. Littlefield, a licensed geologist for The Benham Companies. LLC, do certify the information in this report is correct and accurate to the best knowledge. t 0,4 �o�re&�r}etiy. I * �41 9 (Signature & Seal) P � • '.f aGC L13 i_II��°tie°ti The Benham Companies, LLC - an SAIC company 6310 Allentown Boulevard Harrisburg, PA 17112 i tel: 717.901.8100 1 www.saic.com Corrective Action Plan TravelCenters of America Greensboro Travel Center 11 0 1 NC Highway 61 Whitsett, Guilford County, North Carolina Incident No.: 30318 Facility I.D.: 0-429186 Priority Rank: HIGH Benham Project 4501010051 1 1000 Prepared for: TravelCenters of America 24601 Center Ridge Road Westlake, OH 44145 May 2010 Respectfully submitted: The Benham Companies, LLC kent V. Littlefield, L.G. r Project Manager The Benham Companies, LLC - an SAIL company TABLE OF CONTENTS Page EXECUTIVESUMMARY.............................................................................I...................... ES-1 1.0 INTRODUCTION................................................................................................................1 1.I Purpose...............................................................................•---...................................... 1 1.2 Location and Setting..................................................................................................... 1 2.0 SITE HISTORY AND CHARACTERIZATION............................................................. 2 2.1 Site Development.......................................................................................................... 2 2.2 Storage Tanks................................................................................................................ 2 2.2.1 Underground Storage Tanks(USTs).................................................................. 2 2.2.2 Aboveground Storage Tanks (ASTs)................................................................. 2 2.2.3 Oil/Water Separators.......................................................................................... 3 2.2.4 Former Tanks..................................................................................................... 3 2.3 Release History and Site Characterization.................................................................... 3 2.4 Receptor Information.................................................................... ................ 4 2.4.1 Water Supply Wells........................................................................................... 4 2.4.2 Public Water Supplies.................................................................. ............ 4 2.4.3 Surface Water..................................................................................................... 4 2.4.4 Wellhead Protection Areas... .............................................................................. 5 2.4.5 Subsurface Structures......................................................................................... 5 2.4.6 Land Use and Property Owner and Occupants .................................................. 5 2.5 Previous Reports........................................................................................................... 5 2.6 Initial Abatement and Corrective Actions.................................................................... 6 2.6.1 Soil Excavation.................................................................................................. 6 2.6.2 Liquid -Phase Hydrocarbon (LPH) Gauging and Recovery ............................... 6 3.0 SUMMARY OF SITE ASSESSMENT INFORMATION ............................................... 7 3.1 Dispenser Upgrade Soil Sampling................................................................................ 7 3.2 Limited Site Assessment............................................................................................... 7 3.3 Comprehensive Site Assessment......................................................................... 3.3.1 Soil Borings........................................................................................................ 7 3.3.2 Monitoring Wells............................................................................................... 8 3.4 Groundwater Modeling....................................................................................... ..... 9 3.4.1 Fate and Transport Model... ............................................................................... 9 3.4.2 Input Data......................................................................................................... 10 3.4.3 Results and Discussion..................................................................................... 11 4.0 EVALUATION OF CORRECTIVE ACTIONS............................................................13 4.1 Alternatives.................................................................................................................13 4.1.1 Bioremediation................................................................................................. 13 4.1.2 Soil Vacuum Extraction/Bioventing................................................................ 14 4.1.3 Soil Excavation and Removal.......................................................................... 14 4.2 Alternatives Cost Estimate......................................................................................... 15 4.3 Discussion of Remedial Options................................................................................. 16 The Benham Companies, LLC- an SAIL company 5.0 PROPOSED CORRECTIVE ACTION...........................................................................18 5.1 Basis of Recommendation................................................................... .. 18 5.2 Methodology............................................................................................................... 18 5.3 Remedial Effectiveness Monitoring........................................................................... 19 5.4 Remedial Schedule..................................................................................................... 20 5.5 Public Notification...................................................................................................... 20 6.0 REFERENCES...................................................................................................................21 The Benham Companies, LLC - an SAIC company LIST OF FIGURES Figure 1, Site Location Map.....................................................................................Following Text Figure 2, Site Plan.....................................................................................................Following Text Figure 3, Site Geology Map......................................................................................Following Text Figure 4, East—West Geologic Cross Section...........................................................Following Text Figure 5, North —South Geologic Cross Section........................................................Following Text Figure 6, CSA Soil Sampling Results - March 2009................................................ Following Text Figure 7, Groundwater Contour Map - April 28, 2009............................................. Following Text Figure 8, Groundwater Contour Map - May 28, 2009..............................................Following Text Figure 9, Groundwater Sample Results....................................................................Following Text LIST OF TABLES Table 1, UST/AST Owner/Operator and Other Responsible Party Information ...... Following Text Table 2, Site -wide UST/AST and Other Release Information ................................. Following Text Table 3, Public and Private Water Supply Well and Other Receptor Information... Following Text Table 4, Adjacent Property Owners/Occupants........................................................Following Text Table 5, Groundwater Elevations and Product Thickness........................................Following Text Table 6A, Groundwater Sampling Results - BTEX and PAHs ................................Following Text Table 613 Groundwater Sampling Results - MADEP VPH and EPH.......................Following Text Table 6C, Groundwater Sampling Results - Field Parameters .................................Following Text LIST OF APPENDICES Appendix A, Groundwater Modeling Documentation and Results ..........................Following Text Appendix B, CAP Calculations................................................................................ Following Text The Benham Companies. LLC - an 5AIC company Corrective Action Plan WP116331TA' rtslGreensboro Incident 3031 S-CAP Greensboro Travel Center - Incident 30318 - ES 1 - May 2010 EXECUTIVE SUMMARY On behalf of TravelCenters of America (TA), The Benham Companies, LLC (Benham) prepared this Corrective Action Plan (CAP) for TA's Greensboro facility located at 1101 North Carolina Highway bl in Whitsett, Guilford County, North Carolina (the facility). A CAP was required by a Notice of Regulatory Requirements (NRR) letter from the North Carolina Department of Environment and Natural Resources (DENR) dated March 1, 2010. This CAP reviews site history; summarizes subsurface investigation findings; sets objectives for corrective action; evaluates alternatives for meeting those objectives; and recommends enhancement of the existing bioremediation process and maintenance of the facility paving to prevent direct human contact and limit dissolution into groundwater. The subject of this CAP is the facility diesel fuel dispensing pad, where impacted soil was discovered during TA's diesel dispenser and piping upgrades in April 2006. TA removed 102.5 tans of hydrocarbon -impacted soil, and DENR assigned Incident No. 30318 for the release. As no active leakage was present, the source of the release was likely from fuel dispensing operations. TA followed up with a Limited Site Assessment (LSA) of the diesel dispenser pad using four sail borings and one monitoring well (DDMW-2). The February 2007 LSA reported no soil impact; however, groundwater was impacted by hydrocarbons at DDMW- 02. The LSA report documented residential supply wells within 1,500 feet, which designated the facility a high risk classification. TA further investigated the diesel dispenser pad with a Comprehensive Site Assessment (CSA) using 19 sail borings and 4 monitoring wells. Of the 40 soil samples collected by the CSA, only 4 locations exceeded the Soil to Groundwater Maximum Soil Contaminant Concentration (MSCC) limits. The CSA report and addenda, dated .Tune 29, 2009, October 2, 2009, and January 29, 2010, detected benzene and C9-C22 aromatics above 2L Standards at DDMW-2 and 2-methyl naphthalene and C9-C22 above 2L Standards at CSAMW-3. Benzo(b)fluoranthene was measured above solubility limits at various wells (CSAMW-1, CSAMW-2, and CSAMW-4) but was believed to be adsorbed to colloidal particles and not representative of dissolved concentrations. Liquid -phase hydrocarbon (LPH) was measured in DDMW-2 on The Benham Companies, LLC - an SAIC company Corrective Action Plan WPI16331TA\ rts\Greensboro Incident 30318-CAP Greensboro Travel Center - Incident 30318 - ES 2 • May 2010 March 31, 2009, amounting to 1.3 fluid ounces, all of which was recovered. No LPH recurred in April or May 2009, or during purging in September and December 2009. The CSA also confirmed the active presence of contanunant-degrading bacteria in soil and groundwater. The impervious surface covering (pavement) at the site prevents direct exposure to the impacted soil and hydrocarbon dissolution by water infiltration. Site hydraulic gradient and hydraulic conductivity contribute to very slow (0.025 feet per day) groundwater migration as expected for the saprolitic soils. Target hydrocarbons attenuate to below 2L Standards less than 30 feet from the source. The property line is 220 feet from the source, so there is no risk to water supply wells. Favorable conditions for microbial populations with capability to degrade hydrocarbons were confirmed. These characteristics combine to make bioremediation a feasible corrective action, as indicated by the lack of hydrocarbon impact in downgradient wells MW-15, CSAMW-1, and CSAMW-2. However, the single instance of LPH suggested a hydrocarbon film on the inner well surfaces of DDMW-2. This CAP used the data collected by the LSA and CSA to propose corrective action by enhanced bioremediation. It recommends a single application of dilute (5 percent) hydrogen peroxide in DDMW-2 to address the residual hydrocarbon film on the inner well surfaces; installation of Oxygen Releasing Compound (ORC) within DDMW-2 and CSAMW-3 to stimulate the existing bioremediation; monitoring remedial effectiveness by semiannual groundwater sampling; and maintaining facility pavement to prevent direct contact with soil and limit dissolution into groundwater. Cleanup goals for the CAP are DENR's current 2L Standards. Upon attainment of this goal, the site is eligible for incident closure. The Benham Companies, LLC - an SAIC company Corrective Action Plan WPI16331TAV lslGreensborc Incident 30318-CAP Greensboro Travel Center • Incident 30318 - 1 - May 2010 1.0 INTRODUCTION 1.1 Purpose On behalf of TravelCenters of America (TA), The Benham Companies, LLC ( Benham) submits this Corrective Action Plan (CAP) for the Greensboro, North Carolina facility. This CAP responds to the April 2006 discovery of impacted soil at the diesel fuel dispensing pad, which was assigned Incident No. 30318 by North Carolina Department of the Environment and Natural Resources (DENR). This CAP summarizes subsurface investigation findings; sets corrective action objectives; evaluates remedial alternatives; and recommends a remedial option. 1.2 Location and Setting The facility is situated on a 27.93-acre parcel at 1101 North Carolina Highway 61 in Whitsett, Guilford County, North Carolina (Figure 1). It is bordered by Greeson Road to the north, Pace Drive and Interstate 85 to the south, Route 6I to the west, and undeveloped land and an unnamed tributary to Alamance Creek to the east (Figure 2). The facility features automotive and truck fueling; a restaurant and motel; convenience store; and truck maintenance shop. The facility is served by public water and sewer. The facility lies in the Carolina Slate Belt of the Central Piedmont Physiographic Province of North Carolina at a surface elevation of approximately 640 feet above mean sea level (AMSL). Figure 3 provides the site geology, and Figures 4 and 5 illustrate the subsurface profile based on soil borings around the diesel dispenser pad. The surface is predominated by impervious cover and landscaped areas, and it slopes south toward Alamance Creek approximately 4,600 feet distant. The diesel dispenser pad is located at a topographic high on the property. The Benham Companies, LLC - an 5AIC company Corrective Action Plan WP116331TA xtslGreensboro Incident 30318-CAP Greensboro Travel Center - Incident ,j0318 -2- May 2010 2.4 SITE HISTORY AND CHARACTERIZATION 2.1 Site Development The site was undeveloped until the 1987 construction of a truck fueling facility by Pace Oil Company. It was purchased by BP ail Company and then sold to TA in 1993 (Table 1). The 1987 underground storage tank (UST) system currently remains in service- 2.2 Storage Tanks 2.2.1 Underground Storage Tanks (USTs) Table 2 and Figure 2 provide the relevant storage tank information. Located on the southwestern corner of the facility, the UST field consists of eight single -walled 10,000-gallon fiberglass -coated steel USTs. Five USTs contain diesel fuel, and three contain unleaded gasoline. The diesel UST system is associated with the diesel fuel dispenser pad in the northwestern portion of the facility. The gasoline USTs serve the automobile fueling area in the south-central portion of the facility. The USTs are protected with impressed current and overfill protection. UST leak detection is by an automatic tank gauging (ATG) system. All pressurized product pipelines from the USTs to the dispensers are double -walled, fiberglass -reinforced plastic (FRP). 2.2.2 Aboveground Storage Tanks (ASTs) The facility has two aboveground storage tanks {ASTs} located southeast of the service station and restaurant (Figure 2). These are for new motor oil and used motor oil. The ASTs were installed in 1987 and are inside a concrete basin capable of holding 4,800 gallons of fluid. These tanks are not associated with any releases at the facility. The Benham Companies. LLC --- an SAIC company Corrective Action Plan WP116331TA11 1slGreensboro Incident 30318-CAP Greensboro Travel Center - Incident 30318 - 3 • May 2010 2.2.3 Oil[Water Separators A below -grade oil/water separator (OWS) is adjacent to the ASTs (Figure 2). Surface water runoff from the diesel fuel dispensing pad flows through the OWS. 2.2.4 Former Tanks The Comprehensive Site Assessment (CSA) report for Incident No. 6113 (June 1999) states that the facility formerly contained one 550-gallon fuel oil, one 550-gallon used fuel oil, and one 3,000-gallon diesel fuel USTs, which were removed in 1990. 2.3 Release History and Site Characterization There were four historic releases and incident numbers at the facility. BP is responsible for a 1990 gasoline release near the gasoline dispensers (Incident No. 6113) (Figure 2). Eagle Transport Corporation (Eagle) was responsible for a diesel release at the UST field in 2007. TA is responsible for a 1999 diesel release at the USTs (Incident No. 20054). TA is also responsible for the April 2006 hydrocarbon -impacted soil discovered during a diesel dispenser and piping upgrade at the diesel dispenser pad (Incident No. 30318), which is the subject of this CAP. No active leakage was present which indicated the source was dispensing spills. The quantity of diesel fuel released is unknown. TA removed 102.5 tons of impacted soil from the shallow subsurface and conducted a Limited Site Assessment (LSA) of the diesel dispenser pad with four soil borings and one monitoring well (DDMW-2). The February 2007 LSA report documents residential water wells within 1,500 feet (Table 3), which designated the facility a high risk classification, although these wells are outside of the groundwater pathway from the facility. The LSA did not detect any soil impact; however, groundwater had hydrocarbon impact at DDMW-02. In 2009, TA further investigated the diesel dispenser pad with a CSA of 19 soil borings and 4 monitoring wells. Of the 40 soil samples collected by the CSA, only 4 were above the The Benham Companies. UC - an SAiC company Corrective Action Plan WP116331TA rtslGreensboro Incident 30318-GAP Greensboro Travel Center - incident 30318 - 4 . May 2010 Soil -to -Groundwater Maximum Soil Contaminant Concentration (MSCC) limits (Figure 6). Soils were characterized as a clay -rich residuum of weathered bedrock (saprolite) extending from approximately 1 foot below grade (fbg) to bedrock at 7 to 20 fbg. The bedrock is metamorphosed quartz diorite. Depth to groundwater was measured from 0 to 19.05 fbg. Groundwater hydrologic gradient is toward the south (Figures 7 and 8). Groundwater samples detected benzene, 2-methylnaphthalene, and C9-C22 aromatics above 2L Standards (Figure 9), while benzo(b)fluoranthene was not believed representative of dissolved concentrations. Hydraulic gradient and hydraulic conductivity contributed to a very slow (0.025 feet per day) groundwater velocity. 2.4 Receptor Information 2.4.1 Water Supply Wells Public water is supplied to the facility and surrounding residential and commercial properties by the City of Gibsonville. Telephone discussions with the City of Gibsonville, review of previous reports for the facility, and a reconnaissance of the surrounding areas determined that 8 private water wells exist within 1,500 feet of the release (Table 3). However, these wells are located outside of the groundwater pathway from the facility and at an elevation equivalent to or higher than the facility (Figure 1). 2.4.2 Public Water Supplies No public water supply wells or reservoirs are located within 2,500 feet of the release. 2.4.3 Surface Water The nearest surface water body to the facility is an intermittent tributary to Alamance Creek on the southwest property margin. This stream flows southeast through a culvert under North Carolina Highway 61 (Figure 1) and emerges on the south side of Pace Drive, where it enters The Benham Companies, LLC — an 5AIC company Corrective Action Plan WP116331TAV rtslGreensboro Incident 30318-CAP Greensboro Travel Center - f ncident 3031 B . 5 - May 2010 another culvert under 1-85. South of 1-85, it combines with another unnamed stream and flows into Alamance Creek/Lake Macintosh about 4,600 feet south. 2.4.4 Wellhead Protection Areas No wellhead protection areas are known to exist within the area of this release. 2.4.5 Subsurface Structures A survey of utilities located along Route 61 and Pace Drive and at the facility was conducted. Underground utilities, storm drains, and electrical conduits were located by visual inspection, site maps, and the One Call System. These were screened with a photoionization detector (PID) capable of detecting organic vapors. The buildings at the facility were not screened as they do not have basements. No elevated PID measurements were present during the screening, and no evidence of impact was present in surface or storm water structures. 2.4.6 Land Use and Property Owner and Occupants The facility is zoned and used as a commercial property. It is surrounded by residential, agricultural, and commercial/industrial zoned properties. The adjacent property to the east is undeveloped and is zoned as commercial. North, south, and west of the facility are residential properties. A list of property owners adjacent to the facility is included as Table 4. 2.5 Previous Reports The following report listing records the actions to date for Incident No_ 30318: Report Title Date Source/Authors Soil Sampling Services (Dispenser Closure Report) Limited Site Assessment Report Comprehensive Site Assessment Work Plan Comprehensive Site Assessment Report Comprehensive Site Assessment Report Addendum I Comprehensive Site Assessment Report Addendum 2 June 22, 2006 February 19, 2007 March 10, 2008 .tune 29, 2009 October 2, 2009 January 29, 2010 Sierra Piedmont Sierra Piedmont SAIC SAIC SAIC Benham The Benham Companies, LLC - an SAIC company Corrective Action Plan WP116331TA1 rtslGreensbcro Incident 30318-CAP Greensboro Travel Center - Incident 30318 - 6 - May 2010 2.6 Initial Abatement and Corrective Actions 2.6.1 Sail Excavation Initial abatement began upon the discovery of the release during the diesel dispenser replacements in 2006. Approximately 102.5 tons of diesel fuel -impacted soil was removed from the diesel dispenser pad. The excavation and post -excavation soil sampling are described in the June 22, 2006, Soil Sampling Services Report and February 11, 2007, LSA. 2.6.2 Liquid -Phase Hydrocarbon (LPH) Gauging and Recovery No liquid -phase hydrocarbon (LPH) was reported in soil during dispenser replacements. The February It, 2007, LSA reported no LPH observed on groundwater (monitoring well DDMW-2) or in soil borings of October 2006. Other than a single instance of LPH measured in and recovered from DDMW-2 in March 2009 (Table 5), no LPH was present. No LPH recurred in DDMW-2 during gauging in April and May 2009 or purging in September and December 2009. The Benham Companies, LLC — are SAIC company Corrective Action Plan WP116331TA MslGreensboro Incident 30318-CAP Greensboro Travel Center . Inciauri(,Ml8 .7 - May 2010 3.0 SUMMARY OF SITE ASSESSMENT INFORMATION 3.1 Dispenser Upgrade Soil Sampling In April -May 2006, TA replaced the diesel dispensers at the site as described in the June 22, 2006, Soil Sampling Services Report. Soil samples were collected from 24 locations, and 102.5 tons of impacted soil were removed from the diesel dispenser pad. Soil sampling conducted after hydrocarbon -impacted soil removal indicated soil concentrations above MSCC limits. 3.2 Limited Site Assessment In October 2006, TA installed four soil borings (DB-01, D13-02, ❑B-03, and D13-04) and one monitoring well (DDMW-2) for the LSA. The borings penetrated silty clay and clayey silt to bedrock (6 to 15 fbg), and the soil samples did not detect evidence of impact. A groundwater sample of DDMW-2 contained volatile organic compounds (VOCs) and extractable petroleum hydrocarbons (EPH) above the 2L and Gross Contamination Levels (GCL) Standards (Table 6). The LSA reported that private supply wells were present within 1,500 feet of the site. As a result, a CSA investigation was required by the DENR to delineate the extent of soil and groundwater impact. 3.3 Comprehensive Site Assessment 3.3.1 Soil Borings In March 2009, TA conducted a CSA by installing 19 soil borings and 4 monitoring wells surrounding the diesel fueling dispenser pad. A total of 40 soil samples were collected using direct -push methods. No LPH or groundwater was observed in the borings, and refusal (bedrock) varied from 6.5 to 12 fbg. Sail samples were collected and analyzed for benzene, toluene, ethylbenzene, and xylenes (BTEX) and polyaromatic hydrocarbons (PAHs). Five soil samples were analyzed for volatile petroleum hydrocarbons/extractable petroleum hydrocarbons The Benham Companies, LLC - an SAIC company Corrective Action Plan WP116331TA1 rts\Greensboro Incident 30318-CAP Greensboro Travel Center - h6cle;u jo318 - 8 . May 2010 (VPHJEPH) according to the Massachusetts Department of Environmental Protection (MADEP) method. Three soil samples were analyzed for grain size, permeability, bulk density, and fractional organic carbon. Additionally, three soil samples were collected and analyzed for total heterotrophs, contaminant -degrading organisms, nitrates, and phosphates. Of the 40 soil samples collected by the CSA, only 4 were above the Soil -to -Groundwater MSCCs, as summarized on Figure 6. The geotechnical analyses of the saprolite reported hydraulic conductivity ranging from 6.277E-05 feet per day (ftlday) (2.39E-08 centimeters per second [cmis]) to 3.37E-03 ftlday (1.19E-06 cm/s). The fine texture and low hydraulic conductivity of the saprolite inhibits hydrocarbon infiltration. Bacteria colonies with enzymatic capabilities to degrade hydrocarbons were measured. The relatively neutral sail pH and number of colonies indicated a healthy and diverse contaminant -degrading bacteria population is present in soil. 3.3.2 Monitoring Wells Four monitoring wells were installed around the diesel dispenser islands (CSAMW-1, CSAMW-2, CSAMW-3, and CSAMW-4) for the CSA. Weathered bedrock was encountered between 6.5 and 12 fbg, with no indication of groundwater above bedrock. Groundwater was encountered in bedrock at 15 to 20 fbg at CSAMW-3 and CSAMW-1, respectively, Equilibration of groundwater levels took approximately one week. No groundwater was encountered at CSAMW-2 and CSA.MWA so these wells were drilled to approximately 75 fbg where the boreholes remained dry. Equilibration of groundwater levels in these wells took approximately one month. Groundwater levels were monitored monthly from March to May 2009 and again in September and December 2009. Groundwater gradient slopes south (Figures 7 and 8) generally following the surface topography. Groundwater sampling of the wells surrounding the diesel fuel dispensers (MW-4, CSAMW-1, CSAMW-2, CSAMW-3, CSAMW-4, and MW-15) was conducted in March, April, September, and December 2009. DDMW-2 contained LPH in March 2009, which was recovered, but the well was not sampled. Thereafter, LPH did not accumulate in DDMW-2, even after purging to sample in September and December 2009. Groundwater samples were analyzed for BTEX, The Benharn Companies. f_LC - an SAIC company Corrective Action Plan WP116331TA1 Is6reensboro Incident 30318-CAP Greensboro Travel Center - Incident su318 - 9 - May 2010 PAHs, VPHIEPH, total heterotrophs, benzene -degrading organisms, methyl tertiary -butyl ether (MTBE)-degrading organisms, nitrates, and phosphates. The CSA and addenda, dated June 29, 2009, October 2, 2009, and January 29, 2010, reported benzene and C9-C22 aromatics above 2L Standards at DDMW-2 and 2-methyl naphthalene and C9-C22 above 2L Standards at CSAMW-3. Benzo(b)fluoranthene was measured above solubility limits at various wells (CSAMW-1, CSAMW-2, and CSAMW-4) but was believed to be adsorbed to colloidal particles and not representative of dissolved concentrations. Slug testing of DDMW-2, CSAMW-1, CSAMW-2, CSAMW-3, CSAMW4, and MW-15 measured a low mean hydraulic conductivity of 0.03I fit/day (0.232 gallons per day per square foot [gpd/ft2]). This results in a low groundwater velocity of 0.025 ft/day, or 3.3 ft/year. Petroleum hydrocarbons migrate at an even slower rate in groundwater, which indicates little migration from the diesel dispensers, as confirmed by attainment of 2L Standards at the downgradient wells MW-15, CSAMW-I, and CSAMW-2. On this basis, there is no potential for hydrocarbon migration to receptors. Bacteria with enzymatic capabilities to biodegrade hydrocarbons were measured in groundwater. The relatively neutral groundwater pH and moderate dissolved oxygen levels are conducive to a healthy and diverse microbial population in groundwater. Soil and groundwater sampling indicate bioremediation is occurring. Slow groundwater migration and bacterial viability indicate a potential for bioremediation of the hydrocarbons and lowering the risk classification. The default remedial goals for soil and groundwater are the lower of the soil -to -groundwater or residential MSCCs or the 2L Standards. Upon attainment of this goal, the site is eligible for incident closure. 3.4 Groundwater Modeling 3.4,1 Fate and Transport Model Groundwater fate and transport modeling was conducted to assess the potential future extent of regulated substances in groundwater. Specifically, the modeling was used to predict the extent The Benham Companies, LLC - an SAIC company Corrective Action Plan WRI6331TA1 1$s Greensboro Incident 30318-CAP Greensboro Travel Center - tncideni au318 -14 - May 2010 of regulated substances in groundwater up to 10 years in the future. The modeling was completed using Quick Domenico (QD), a Microsoft Excel spreadsheet application of An Analytical Model for Multidimensional Transport of a Decaying Contaminant Species, by P.A. Domenico (Journal of Hydrology, 91 [ 19871, pp 49-58). This model is a peer -reviewed three-dimensional solute transport model for predicting concentrations in the groundwater in the future. It was used to calculate the concentration of target hydrocarbons downgradient of the source and determine where groundwater will be above the 2L Standards ( Appendix A). 3.4.2 Input Data The source of groundwater impact is releases of diesel fuel from fueling at the diesel dispenser pad. The downgradient property boundary is located at a distance of approximately 220 feet to the southwest of the diesel dispenser pad. Target hydrocarbon substances exceeding 2L Standards in groundwater at the site in 2009 included benzene, benzo(b)fluoranthene, 2-methylnaphthalene, and C9-C22 aromatics detected in groundwater by monitoring wells CSAMW-3 and DDMW-2. other hydrocarbons were detected above 2L Standards in 2006; however, these were not modeled because they no longer exceed 2L Standards. To be protective, the model was run at maximum concentrations detected by the CSA with the assumption of no reduction of source concentration with time. Additionally, the retardation effects of fractional organic carbon (FDC) were set as insignificant (0.05 percent) relative to the higher measured FQC concentration (2.56 percent). The model required both site- and compound -specific input from the investigation or as recommended in the model documentation: • Ax (longitudinal dispersivity): Recommended by model documentation as 0.1 *distance from the source to the location of concern (property line): 0.1*220 feet = 22 feet. • AY (transverse dispersivity): Recommended by model documentation as Ax13 = 22 feet/3 = 7.33 feet. • Az (vertical dispersivit: Recommended by model documentation as Ax120 = 22 feet120 = 1.1 feet. The Benham Companies. LLC - an SAIC company Corrective Action Plan WP115331TA' )rtsiGreenshoro Incident 30318-CAP Greensboro Travel Center - Incident j0318 - 11 - May 2010 * Source Width (maximum width of the area of contaminated soils): This value was set at 40 feet based on the characterization groundwater chemistry data and assuming a source between DDMW-2 and CSAMW-3. * Source Thickness (the thickness_ of contaminated soils plus the groundwater smear Zane): This value was set at 10 feet based on the fluctuation of groundwater. ■ Hydraulic Conductivity: Based on the slug testing, the geometric mean of hydraulic conductivity value at the site is 0.031 feet/day. ■ Hydraulic Gradient: An average gradient measurement of 0.073 fVft was set using the historic groundwater elevation measurements. ■ Porosity: Using an estimate of effective porosity for the silt and clay beneath the site, a value of 10% was set. * Soil Bulk Density: A value of 1.33 was utilized for the soils. ■ Fractional Organic Carbon: A value of 0.05% was used to be conservative. The measured value for the site soils was 2.56%. The following shows the input data utilized for benzene as an example. Other targets were modeled with their specific input 1 fisted on the model output page: ■ Source Concentration: The maximum benzene concentration detected over the past sampling events was 0.0015 milligrams per liter (mg1L) and was used in the modeled source area. * Receptor Concentration: The 0.001 mg/L benzene 2L Standard was used. * Lambda (first order decay constant): The published benzene attenuation lambda is 0.000959 days t. * KQHC (organic carbon partition coefficient): The value listed in the United States Environmental Protection Agency (EPA) guidance for benzene is 98. 3.4.3 Results and Discussion The results of the modeling are summarized on the QD model spreadsheets included in Appendix A. Model predictions were calculated for 10 years to assess the potential The Benham Companies, L L C -an SA IC company Corrective Action Plan WP116331TA' wis\Greensboro Incident 30318-CAP Greensboro Travel Center - Incident j0316 -12 - May 201 D configuration and extent of the contaminant plume. Of the four target hydrocarbons, benzene is the most mobile and has the lowest 2L Standard. The modeling indicates that benzene will not migrate more than approximately 20 feet before dropping below the 2L Standard. As the distance to the downgradient property line is 220 feet, benzene will not migrate off the property at a detectable concentration in groundwater. This is due primarily to the fact that benzene is present at a relatively low concentration (1.5 micrograms per liter [pg/L]) and the rate of groundwater migration is exceedingly slow. Although higher in concentration, the C9-C22 aromatics will not migrate beyond 12 feet distance before dropping in concentration below 2L Standards, which indicates low mobility. Even less mobile, 2-methylnaphthlene attenuates and drops below 2L Standards in a distance of approximately eight feet. Benzo(b)fluoranthene is not representative of a dissolved -phase impact but is immobile, migrating less than one foot. The absence of dissolved hydrocarbons in groundwater samples from the three downgradient wells (MW-15, CSAMW-1, and CSAMW-2) south of the diesel -dispensing canopy supports the modeling results. Lack of migration owes mainly to low source concentrations, low hydraulic conductivities, and low hydrocarbon mobility, which translate to no potential risk to receptors. A Iack of mobility discourages pump and treat for the CAP but supports in -place treatment of hydrocarbons using bioremediation. The Benham Companies, LLC - an SAIC company Corrective Action Plan WP116331TX rctslGreensborc Incident 30318-CAP Greensboro Travel Center - lncld D318 -13 . May 2010 4.0 EVALUATION OF CORRECTIVE ACTIONS 4.1 Alternatives The default remedial goals for soil and groundwater are the lower of the soil -to -groundwater or residential MSCCs, as required in the March 1, 2010, Notice of Regulatory Requirements (NRR) letter to TA. Upon attainment of this goal, the site is eligible for incident closure. A variety of corrective action alternatives exists to address the hydrocarbons in the soil and groundwater to meet these goals. Potentially viable alternatives were evaluated with respect to factors such as ability to meet remedial goals, expected influence of site -specific characteristics, timeliness, and cost. The following is a discussion of the potential alternatives that could be applied to mitigate the hydrocarbons for Incident No. 30318. 4,13 Bioremediation Bioremediation relies on microorganisms (bacteria) to metabolize and degrade hydrocarbon contaminants into harmless products, primarily carbon dioxide and water. Once the contaminants are degraded, the bacteria population will decline. The effectiveness of bioremediation for attaining the remedial goals is dependent upon site -specific factors of nutrient availability, size and type of microbial populations, oxygen availability, pH, and temperature of the substrate. Recent analyses have shown that hydrocarbon -degrading bacteria are present in both the soil and groundwater and the pH and nutrient availability are favorable. Depressed dissolved oxygen concentrations in CSAMW-1, CSAMW-3, and DDMW-2 groundwater, relative to other wells with little or no dissolved hydrocarbons, show bioremediation is ongoing. Oxygen consumption is due to the fact that hydrocarbon -degrading bacteria are aerobic. The impervious surface paving prevents direct human contact with contaminated soil but also precludes infiltration of oxygen -rich meteoric water. The Benham Companies, LLC - an SA1C company Corrective Action Plan WPIl6331TA1i rts\Greensboro Incident 36318-CAP Greensboro Travel Center - Incident 30318 14 - May 2416 4.1.2 Soil Vacuum Extraction/Bioventing Soil vacuum extraction (SVE) physically removes hydrocarbon vapors from soil by creating airflow through the soil with a vacuum pump piped to a well network. SVE is most applicable to sites with volatile hydrocarbons, such as gasoline, and porous permeable soil. The subject site does not meet these criteria. A modification of SVE for less volatile hydrocarbons is bioventing, which inoves lower rates of air through the soil. Bioventing provides oxygen to assist aerobic bacteria in hydrocarbon remediation. Hydrocarbon vapors that are released are treated using granular -activated carbon (GAQ, and the treated air is subsequently discharged. Bioventing below the groundwater (air sparging) can be accomplished by pumping air into the subsurface below the groundwater. Groundwater in the vicinity of the diesel dispensing pad is in bedrock; therefore, relatively shallow treatment by SVE/bioventing will not influence groundwater without the air sparging component of bioventing. 4.1.3 Soil Excavation and Removal Upon discovery of impacted soil at the dispenser pad, 102.5 tons of impacted soil were removed from the subsurface under the pad. Subsequent soil samples indicated the remaining soil impact was limited to shallow depths because of low soil permeability. Water infiltration and direct contact with soil are precluded by paving over the area. The remedial goals for soil might be attained by additional excavation and soil removal, but groundwater will not be treated by soil excavation. Excavation/removal would necessitate the existing product piping be removed, which would put the facility out of service for one month or more. Pre -excavation or soil stockpile samples may be necessary, depending on the disposal/treatment facility chosen. Based on the spacing of soil borings and an assumption of a 5- to 10-foot excavation depth where. MSCCs are attained, 600 to 800 cubic yards of soil may be generated. At approximately 1.8 tons per cubic yard, approximately 1,080 to 1,440 torts may be produced by excavation. Soil sampling prior to backfilling is recommended to document the The Benham Companies, LLC - an SAIC company Corrective Action Plan WPI16331TA} rts\Greensboro Incident 30318-CAP Greensboro Travel Center - Incident :i0318 15 May 2010 removal of the impacted soil. An equal quantity of soil backfill will replace the impacted soils removed from the subsurface. Excavated contaminated soils are removed from the site to a permitted landfill or treatment facility. Landfilling of impacted soil reduces landfill capacity unless it can be used for daily cover. Treatment involves thermal desorption, asphalt blending, or bioremediation. Positive considerations for landfilling and recycling include a relatively short time to complete the operation and no on -site storage necessity. Disadvantages include additional transportation and treatment expenses. As with all ex -situ methods, this alternative requires replacement of the removed soils and backfilling with proper compaction. 4.2 Alternatives Cost Estimate Benham developed cost estimates for evaluating remediation alternatives by bioremediationlnatural attenuation, bioventing, and soil excavation and removal. The cost estimates were based on the following assumptions: 1. Currently, the facility pavement and natural soil properties prevent direct human contact with hydrocarbons and inhibit water infiltration and migration of impacted groundwater. Bioremediation preserves that isolation status with no additional cost. 2. Bioventing alone does not treat groundwater; therefore, air sparging below the groundwater would be necessary. All piping for bioventing and air sparging must be underground. 3. The volume and weight of the impacted soil to be excavated and treated (or disposed) are cost drivers that can be estimated, but the loss of business due to removal of the product piping are primary costs that are difficult to estimate. 4. For excavation/removal, the dispenser pad would have to be shut down and piping removed, Excavation would involve removal/replacement of the product piping and electric utilities disturbed by soil removal and post -remedial soil samples. Backfill would need to be The Benham Companies, LLC - an SAIC company Corrective Action Plan WP116331TA rts\G re e n sboro Incident 30318-CAP Greensboro Travel Center - Inciaeni j0318 -16 - May 2010 purchased and installed. Pavement and concrete will need to be replaced with the capacity to support weight. Based on Benham's experience in remediation, and the assumptions stated above, the estimated costs to address the three soil altematives are: • Option 1: Bioremediation: $20K - $30K. • option 2: SVElbioventing: $95K - $125K (not recommended). • Option 3: UST removal and installation and off -site soil treatment by recycling: $320K - $370K (not recommended due to additional potential exposure and costs). 4.3 Discussion of Remedial Options Based on site factors and the relative decrease in hydrocarbon concentrations since 2006, bioremediation has been and is presently occurring. In the most recent sampling, groundwater already meets the 2L and GCL Standards except for C9-C22 aromatics in DDMW-2. The CSA data indicate hydrocarbon degraders are present and conditions are conducive for bioremediation to meet the remedial goal. Groundwater data from the CSA demonstrate that no hydrocarbon impact is migrating from the diesel dispenser pad on the site. The relatively depressed concentrations of dissolved oxygen will slow the process of bioremediation. Therefore, to speed the process of bioremediation oxygen releasing compound (CRC), a magnesium peroxide additive, can be applied in wells. CRC increases dissolved oxygen concentrations in soil and groundwater promoting aerobic metabolism of the hydrocarbon residuals. Bioremediation enhanced with CRC is the lowest cost alternative and is recommended. The Benham Companies, LLC - an SAIC company Corrective Action Plan WPIl6331TA11 -tskGreensboro Incident 30318-CAP Greensboro Travel Center - incident ju318 - 17 - May 2010 Remediation of soil Gould be enhanced by bioventing using this alternate means of adding oxygen. However, the low volatilization potential and the presence of impacted groundwater in bedrock suggest that the technique would also require air sparging. Based on the additional costs and limitations of treatment area by the low permeability soil and bedrock, bioventing is not recommended at this time. Soil excavation is unnecessary because current conditions isolate the soil and groundwater from direct contact and infiltrating water. Soil excavation would expose soil for direct contact and water infiltration and would result in significant costs beyond those for other alternatives. The product piping system and other underground utilities would need to be shut down, removed, and reinstalled, creating the potential for an accidental release. Site data demonstrate no potential for migration to receptors, so this level of effort and cost is unreasonable. Finally, excavation would not remediate groundwater because groundwater is in bedrock. As soil removal is not justified and has a host of significant disadvantages, it is not recommended. The Benham Companies, LLC - an SAIC company Corrective Action Plan WPI1M331TA11 ls\Greensboro Incident 30318-CAP Greensboro Travel Center - Incident 30318 -18 - May 2010 5.0 PROPOSED CORRECTIVE ACTION 5.1 Basis of Recommendation Compared to the historical groundwater sampling results of 2006, the September and December 2009 groundwater sample results indicate a significant reduction in hydrocarbon concentrations. The relatively reduced dissolved oxygen concentration in groundwater further supports that natural processes are degrading the hydrocarbons. As a result of degradation and low hydraulic conductivity, groundwater downgradient of the diesel dispenser pad meets the 2L and GCL standards. Groundwater and hydrocarbon migration rates are slow, and surrounding receptors are hundreds of feet away and topographically higher. As a result, no hydrocarbon -impacted groundwater has migrated from the dispenser area, and the potential of impact to receptors is low. 5.2 Methodology Based on the conditions measured, which support an active community of hydrocarbon degrading organisms and lack of impact downgradient, enhanced bioremediation will be used to address the remaining hydrocarbon impact from the 2006 diesel fuel release. This methodology has been well established and accepted by the state and federal agencies and the regulated community. Prior to implementing enhanced bioremediation, a single dose of dilute (5 percent) hydrogen peroxide in water will be applied to DDMW-2. This amendment will serve to oxidize the residual hydrocarbon film expected to reside as a coating of the inner well casing and screen walls and to increase the dissolved oxygen. The dissolved phase in the well and residuals on the well casing are conservatively estimated at a sum of approximately 4.2 grams (Appendix B). The hydrogen peroxide required to complete the reaction with hydrocarbons is a ratio of 2.17:1; therefore, using that ratio, a total of 9.1 grams is required. To be conservative, a safety factor of three times the required reaction amount or 27.3 grams hydrogen peroxide will allow for treatment of the filter pack and formation skin just outside the well screen. A liter of retail 5 The Benham Companies, LLC - an SAIC company Corrective Action Plan WN6331TA1 VGreensboro Incident 30318-CAP Greensboro Travel Center - Incident JU318 - 19 - May 2010 percent hydrogen peroxide contains 71.5 grams; therefore, 4.4 liter of 5 percent hydrogen peroxide will be introduced to DDMW-2 for this purpose. The current population of hydrocarbon -degrading bacteria will be enhanced by increasing the dissolved oxygen concentrations in groundwater south of the diesel dispenser pad using ORC socks placed in DDMW-2 and CSAMW-3. A total of 15 feet of 2-inch ORC socks (5.5 kilograms) will be installed in the groundwater in each well. The reaction of the magnesium peroxide in the socks and water in the well will produce approximately one kilogram of oxygen over approximately one year. The oxygen will diffuse into the groundwater surrounding the well and be available to enhance the bacterial decomposition of the hydrocarbons. If necessary, based on continued presence of hydrocarbons above the 2L Standards, the socks will be replaced in kind at the end of one year. 5.3 Remedial Effectiveness Monitoring Semiannual groundwater sampling will be conducted at wells CSAMW-1, CSAMW-2, CSAMW-3, CSAMW-4, and DDMW-2 to document remedial effectiveness. if LPH is present, it will be removed from the well and a modification in the remedial method may be considered. No groundwater sample will be acquired from a well with LPH. Monitoring wells will be purged and sampled in accordance with American Society for Testing and Materials (ASTM) Method D-4448. During purging, water quality data will be recorded with field instruments including pH, temperature, oxidation reduction potential (ORP), dissolved oxygen, salinity, and specific conductance. All purge water will be discharged to the facility OWS. Groundwater samples will be collected from each well with dedicated disposable bailers, placed in laboratory -provided glassware, and preserved according to ASTM Method D-3694. Samples will be submitted for analysis of C9—C22 aromatics by MADEP VPHIEPH. Following the groundwater sampling and receipt of laboratory reports from each semiannual sampling event, a brief remedial effectiveness monitoring report will be prepared, which will compare the results of the groundwater monitoring to the 2L Standards. Upon attainment of the 2L Standards, a no further action (NFA) approval will be sought. The Benham Companies, LLC - an SAIC company Corrective Action Plan WPM MTA11 rtslGreensboro Incident 30318-CAP Greensboro Travel Center - Incident JU318 - 20 - May 2010 5.4 Remedial Schedule Upon approval of the CAP by the DENR, the remedial schedule will include initial hydrogen peroxide and ORC introduction in the first month. A semiannual schedule of remedial evaluation monitoring and reporting will then commence, with sampling six months after ORC introduction. Laboratory analyses from the semiannual sampling will be done on a normal turnaround, which is approximately two weeks. Reports of the results of sampling will be submitted within one month of the receipt of laboratory reports. 5.5 Public Notification As the CAP proposes corrective action by enhanced bioremediation and does not propose remediation to an alternate cleanup standard, no public notification is required under 15A NCAC 2L .[14Q9(a). The Benham Companies, LLC — an 5AIC company Corrective Action Plan WP1l63MMI 1slGreensboro Incident 30318-CAP Greensboro Travel Center - Incident ju318 - 21 May 2010 6.0 REFERENCES CRA Services/Engineering, Inc., Comprehensive Site Assessment Addendum, Incident No. 6113, June 1999. North Carolina Department of Environmental and Natural Resources, Guidelines far Assessment and Corrective Action for UST Releases, July 1, 2001, and July 15, 2008. Rintoul, Cindy, North Carolina Department of Environmental and Natural Resources, Notice of Regulatory Requirements Letter, March 1, 2010. Sierra Piedmont, Limited Site Assessment Report, Incident No. 30318, February 19, 2007, Science Applications International Corporation (SAIL), Comprehensive Site Assessment, Incident No. 30318, June 2009. SAIC, Comprehensive Site Assessment Addendum, Incident No. 30318, September 2009. The Benham Companies, LLC - subsidiary of SAIC, Comprehensive Site Assessment Addendum, Incident No. 30318, January 2010. The Benham Companies, CLC - an SAIC company FIGURES The Benham Companies, LLC - an SAiC company -�.ILCIO -- At 1 }� j ,� Greesan Road UST System e �-85 O � may{'}► + �� ffr2ryy •� 'may`-� ; ! k � �'��e+state 85 Nate. The base map is from the USGS Gihsanvilte 7.5 min. Quadrangle. Legend 0 250 500 1,000 - Surface Water Feet Property Boundary TRAVELCENTERS OF AMERICA Onsite Buildings GREENSBORO FACILITY N i 101 NC 111GHWAY 61, WHITSETT, NC - Site Location Map ' drawn r:h-cR Z- xpptv.ed xa� �l JGYL_ iigurc no. x 5 ldaw x /a Aau �Q rile nri xx-xxu•xct-xxsn•ux date recision 8� ErJMM K:IGIS_Data1TAlWhitsett. NCTrajects=813 - CAPTigI-Topomap.mxd 5 ,�6 WASS �1i1►-f rRucu soy,Es Raw 4AIMCIN01 zn DDM► g is z1 4 -12Q -1419 0 a ` cNAW-2 _1-1 tRt" A, GWAGE GAT mv-16 jo.mv- 1 v VEW-1 UL�FN3F v WCE MTRW " ® AND REvAUR,Wr ,/WA1ER SEPAUTOR DUMPSTER ti m -1 SHM .00 4 mw W Rip s r-85 LEGEND BMW-1 (MONITORING WELL +VP-1 SOIL VAPOR IMPLANT +DP-1 DUAL PHASE EXTRACTION WELL S U$TMW--1 UST FIELD (MONITORING WELL UST UNDERGROUND STORAGE TANK AST ABOVEGROUND STORAGE TANK -------OE-- OVERHEAD ELECTRIC LINE —+ �7 UNDERGROUND TELEPHONE LIFE 11 STORM SEWER LINE -55 SANITARY SEWER LINE DRAIN LINE DIESEL FUEL DISPENSER UNE T. TRENCH DRAIN LINE 0MH MANHOLE DROP INLET 150' 0 150' SCALE IN FEET �lp �r r' e+ Nole: The base map is from the USGS Gibsonvilie 7.5 min. Quadrangle. Legend Cross Section Axes PzZg - Metamorphosed Quartz Diorite Property Boundary N Onsite Buildings - - Surface Water 1-1 ■ "Aa i J , •ter !� 0 250 500 1.000 Feet TRAVELCENTERS OF AMERICA GREENSBORO FACILITY 1101 NC HIGHWAY 61. WH1TSETT, NC Site Geology Map KSL -PIP-,• 5110110 dart de[c rtie n7 ■ 3 K:IGIS_ IMTA%Whitsett, NclProjeds130813 - CAPTig3-Geo1ogy.mxd 0 IOU so MW-4 CSASS-7 CSASB•S CSAMW-3 DOMW-2 CSASS-5 CSASB-3 zxm_ CSASB-4 CSAMW-1 C- ter..--... -. F � � ..• -"_� r ..r . r � � r....r ..ter r � .. -r rY � .=�� f lorixontal Scale i " = 40'. Groundwater He►'alion (ft) hasM on •112812004 data. Howell nog available for• NIW-4. We►'atiaus based upon an arhit1-M-. da(aul. -< )i X X - Asphalt & Gravel �� - 13rtirack - • Sapronite (Satiny Clay &Clay) Geologic Cross-section North to South at dispenser pad. FIGURE 4 Elevation (feet) I 0 i4 0 O n- a Illllll� m n �111 n x s 1 1,11 iJ} 6 nr 11111111111111111111, � j�,� I� I I II l� y111�1111111111 1111�111�1j1�111111�����1�lj�jll �,�,11111111111111111111 � 11 � n � d ;111111111111111111111��� 11111 11111111111111111111111111�1�1�11,1,1,1,111�1�1�1�1�1�111111111,1,11 q ',I,I jllll 11111111 1111 � 11111111111111111111 _TL-111111111111 ,� •� 11111111111,1,1,llllllllllllllllllllll11111 =r1111111111111111111111111j1j1111111111111 111111 WX 11111111111111111 l l jl jljlillli l �lllllllll�llllllljl j111i1111111111111111111111� � Illlll,,llllll 111111111111 CL 11 l 11 1 1 Illllllllllllll,�,�,�,�,lll�lll�l�l�l�llllllll�llll, l � I 1� i i i� CD1 1i1 CD X A�1�I�llll CD x x tz+�+''' X b 3 C r � ul a 3 n R 7 S v� D a to 6 A 0 W GRASS CSA-SB8 1-2' Compound Result B = 0,910 x = 5.54 LEGEND S MW-5 MONITORING WELL COMPREHENSIVE SITE ASSESSMENT SCSAMW-1 MONITORING WELL ,CSA—SB1 COMPREHENSIVE SITE ASSESSMENT SOIL BORING isMW-4 STORM SEWER LINE TRUCK SCALES DRAIN LINE DIESEL FUEL DISPENSER LINE LIMITED SITE ASSESSMENT SOIL BORING (2007) [APPROXIMATE LOCATION] p [3 CSA-SB8 & l .11 p an IACSA-S810 ° CSA-S811 CSA-SB7 1 v 1 v ■CSA-SB12 CSA-SB13 CSAMW--3 �� ° CSAMW-4 CSA-S814 CSA-SB5 DDMW-2 O ! ° CSA-S815 CSA-SB4 t a ° CSA-sets l CSA-583 ■ v CSA-SO17 � -0n -4' CSA-S82 CSA-S816 CSA—SB2 3 Compound Result C4 -C22 Ar 61. 43 *MW-15 CSA-581 yfCSA-5818 �GSAMW-2 sCSAW Y TRUCK DIESEL FUELING DISPENSERS AND CANOPY SA—SB17 273 Compound Result 8 = 0.047J N = 7.3 2—Mn 17 -CIB N = 11,040 -22 k = 2,220 CSA--SB18 1-2 Com ound Result 2—Mn = 12 CSA—SB18 5-5 Compound Result N = 1.2 2—Mn = 4.6 � t L TRUCK GARAGE WELL ID DEPTH Cam ound B = Benzene x = x enes N = Na htholene 2-Mn 2-Meth no hthcIene -CIS k = C9-C18 Ali hotics -C22 Ar - Cg-C22 Aromatics ALL RESULTS MEASURED IN MILLIGRAMS PER KILOGRAMS (mg/kg) ONLY RESULTS EXCEEDING THE MSCCS ARE SHOWN 40' 0 40, MENI SCALE IN FEET Qum 1n a CSA-588 CSA—ss7 ■ CSAMW-s a5.cy r CSA—Sm DDM1P-2 19'.i 93.45 1 93 cSA--Sa4 A CSA—SB3 A 91 CSA—SB1 BMW-15 �7 �g "89.1 TRUCK SCALES CSA—S89 ,CSA—SB10 -�— TRUCK DIESEL FUELING oisPCrlss=Rs AND CwaaPr CSA—SB1T LCSA—SB12 CSA—SU13 ISCSAMW-4 1�5.93 . CSA-5814 - yo,■CSA—SBi9 r — jC-SlMW-2 5 3.7i LEGEND epMW-5 MONITORING WELL — CSAMW-1 COMPREHENSIVE SITE ASSESSMENT S MONITORING WELL ■CSA—SB1 COMPREHENSIVE SITE ASSESSMENT SOIL BORING (MARCH 2O09) STORM SEWER LINE DRAIN LINE DIESEL FUEL DISPENSER LINE LIMITED SITE ASSESSMENT SOIL BORING (2007) [APPROXIMATE LOCATION] GROUNDWATER ELEVATION IN FEET _ f GROUNDWATER ELEVATION CONTOUR IN FEET ELEVATION NOT USED IN CONTOURING 40' 0 40' SCALE IN FEET & MW-4 92, 7,} CSA--SB9 ° �CSA-SB1O SA -See &CSA-sBt t CSA-5B7 00 TRUCK SCALES TRUCK DIESEL FUELING o1SPENSERS AND CANOPY ° ■CSA-SB12 CSA-SB13 CSAMW-4 CSA-S88 CSAM9P-3 S& 95.21 CSA-S814 -SB5 CSA-5815 89.7.1 CSA-SB16 CSA-SB4 , . 4 ' CS S CSA-se17 an e r GSA—SB1B CSA—S82 �'I fl CSA-SB49 csA-sat ,. ° _ r 9173 -2 19CSAMr�-1 994 .53 + 95 s NNW-15 ca co (m :.y.. co c } 1 i L TRUCK GARAGE LEGEND s MW-5 MONITORING WELL CS,M jib— J COMPREHENSIVE SITE ASSESSMENT S MONITORING WELL ■CSA-SB1 COMPREHENSIVE SITE ASSESSMENT SOIL BORING (MARCH 2O09) STORM SEWER LINE DRAIN LINE DIESEL FUEL DISPENSER LINE LIMITED SITE ASSESSMENT SOIL BORING (2007) [APPROXIMATE LOCATION] GROUNDWATER ELEVATION IN FEET —95-- GROUNDWATER ELEVATION CONTOUR IN FEET (DASHED WHERE INFERRED) INTERPRETED GROUNDWATER FLOW DIRECTfON 40' 0 40 SCALE IN FEET LEGEND S M1W--5 MONITORING WELL CSAMW-1 COMPREHENSIVE SITE ASSESSMENT S MONITORING WELL ,CSA-SB1 COMPREHENSIVE SITE ASSESSMENT SOIL BORING BMW-4 STORM SEWER LINE TRUCK SCALES DRAIN LINE DIESEL FUEL DISPENSER LINE LIMITED SITE ASSESSMENT SOIL BORING (2007) [APPROXIMATE LOCATION] f e �ACSA—SB10 u� 1 CSA-S68 A. � °11 goM 1° CSA--SB1 1 CSA—S97 : l °t I CSAMW- 3 ACSA-SB 12 Cam ound Result 2-Mn = 70 csA-sB13 -M k = 1,820 CSA--SBs CSAMW-4 1-M k= 1,300 CSAMW-3 S ° CSR-5814 CSA—S85 CSA—SB15 mn ° DDMW—S S l4 ° NS = CSA—SB1fi CSA—SB4 , I ° CSA_Sa, ���A-S817 CSA-Ss2 :'l °Il L�°CSA-58,8 GSA-SE31 ` CSAMW-1-1 CSAMW-1 SMW-15 CompoundCompoundl Result NID Bhf = 1 2 CSA-SB19 TRUCK DIESEL ET]EUNG DISPENSERS AND CANOPY M ICSAMW-2 Com ound ICSAMW-2 Com ound Result B b f = 2 TRUCK GwGE WELL ID om ound 8 b f = Benao b fluoranthene 2-Mn 2-Meth naphthalene -12 Arm C9-C22 Aromatics 1-0 k= C11-C22 Aromatics NO NON -DETECT OR BELOW THE 2L STANDARDS Ivy NOT SAMPLED; LIQUID PHASE HYDROCARBON (LPH) PRESENT AT TIME OF SAMPLING ALL RESULTS MEASURED IN MICROGRAMS PER LITER (pg/L) NOTES: 1. ONLY RESULTS EXCEEDING THE 2L STANDARDS ARE SHOWN. 2. DUPLICATE GROUNDWATER SAMPLE OF CSAMW--1 INDICATES NO DETECTION OF BENZO(B)FLUORANTHENE 40' 0 40' SCALE IN FEET TABLES The Benham Companies, LLC - an SAIC company TABLE 1 USTlAST Owner/Operator and other Reponsib le Part►• Information TravelCenters of America 1101 NC Highway 61 Whitsett, Guilford County, North Carolina Facility I.D.. 0-029186 Incident Number.: 30813 UST ID Number 1 through 8 Facility ID Number 0-029186 AST ID Number 19 and 10 Name of Owner Dates of Operation I iPT TA Properties Trust December 15, 1993 to Present Address ITelephone 24601 Center Ride Road, Westlake, OH 44145 440-808-4431 Name of ❑ erator Dates of Operation TA Operating Corporation IDecernber 15, I993 to Present Address Telephone 24601 Center Ride Road, Westlake, OH 44145 440-808-4431 Incident Numbers 30813 20054 Name of Responsible Part Dates of Releases TA Operating Corporation Incident 30813-April 2006 ❑iesel Fuel Release Incident 20054 in 1999 (Diesel Fuel Release Address ITelephone 24601 Center Ridge Road, Westlake, OH 44145 440-908-4431 UST 1D Number 1 throu h 8 Facility ID Number 0-029186 T AST ID Number 9 and 10 - Name of Owner Dates of Operation BP Oil Company l 9S. 7-1093 Address Tole hone 28100 Torch Parkway, Warrenville, IL 60555 630-836-5000 Name of O erstor jDates of Operation BP Oil Com an 1987-1993 Address Telephone 28100 'Porch Parkway, Warrenville, IL 60555 630-836-5000 Incident Number 61 13 Name of Responsible Part Dates of Releases BP Oil Company Incident 6113-1999 (Gasoline Release) Address ITelephone 28100 Torch Parkway, Warrenville, IL 60555 630-836-5000 TABLE 2 Site -wide USTIAST Information and Other Release Information TravelCenters of America 1101 NC Highway 61 Whitsett, Guilford County, North Carolina Facility 1.D.. 0-029186 Incident Number.: 30813 UST ]ID Current -Last Previous Construction Description of Date Tank Current Leak Corrosion Spill Prevention/ Overfill Was Incident No. 30813 Release Contents Contents Capacity Capacity Tank Dimensions Associated Piping; UST location Installed Status Detection Protection Protection Associated With UST System. and Pumps Single -walled, UST Field - 1 Diesel Not 10,000 gal Fiberglass -coated, 96 inches in 3 inch diameter Southwest side 1987 In -Service ATG system Cathodic Protectian- Spill bucket, flow restrictor Yes Applicable Steel diameter double -walled FRP of Site Impressed Current Single -walled, UST Field - 2 Diesel Not 10,000 gal Fiberglass -coated, 96 inches in 3 inch diameter Southwest side 1987 In -Service ATG system Cathodic Protection- Spill bucket, flow restrictor Yes Applicable Steel diameter double -walled FRP of Site Impressed Current Not Single -walled, 96 inches in 3 inch diameter UST Field - Cathodic Protection- 3 Diesel 10,000 gal Fiberglass -coated, Southwest side 1987 In -Service ATG system Spill bucket, flow restrictor Yes Applicable Steel diameter double -walled FRP of Site Impressed Current Single -walled, UST Field - 4 Diesel Nat 10,000 gal Fiberglass -coated, 96 inches in 3 inch diameter Southwest side 1987 In -Service ATG system Cathodic Protection- Spill bucket, flow restrictor Applicable Steel diameter double -walled FRP of Site Impressed Current Not Single -walled, 96 inches in 3 inch diameter UST Field - Cathodic Protection- s Diesel 10,000 gal Fiberglass -coated, diameter double -walled FRP Southwest side I987 In -Service ATG system Impressed Current Spill bucket, flow restrictor Yes Steel of Site Unleaded Not Single -walled, 96 inches in 3 inch diameter UST Field - Cathodic Protection- 6 Gasoline Applicable 10,000 gal Fiberglass -coated, diameter double -walled FRP Southwest side 1987 In Service ATG system Impressed Current Spill bucket, flow restrictor No Steel of Site Unleaded Not 96 inches in 3 inch diameter UST Field - Cathodic Protection- ? Gasoline Applicable 10,000 gal Single -walled Steel diameter double -walled FRP Southwest side 1987 In Service ATG system Impressed Current Spill bucket, flow restrictor No of Site Unleaded Not 96 inches in 3 inch diameter UST Field- Cathodic Protection- 8 Gasoline Applicable 14,000 gal Single -walled, Steel diameter double -walled FRP Southwest side 1987 In Service ATG system Impressed Current Spill bucket, flow restrictor No of Site AST ]m Current -Last Previous Capacity Construction Tank Tank Dimensions Description of kssoriated Piping UST Location Date Tank Current Secondary Containment Was Incident No. 30813 Release Contents Contents Details Status Associated With UST System? and Pumps AST #9 Bulk Oil Not 8,000 1 � Painted Steel Unknown None Southeast of Service Station & 1987 In Service Bath ASTs are surrounded by one concrete dike No Applicable Restaurant (dimensions 20 ft by 33 ft by 3 ft) with 4,800 gallon capacity AST #10 Used Motor Not 4,000 gal Painted Steel Unknown None UST Field -Southwest side of 1987 In Service No OiI A licable Site Incident Material Date of [kscription of Release Number Released Release 6113 Gasoline 1990 BP is responsible for the 1990 gasoline release. In May 1999, diesel fuel seeped into a surface water body. The release was reported to DENR and assigned Release # 20054, but the quantity of diesel fuel released was unknown. An October 1999 investigation conducted by ARCADIS Geraghty & Mil ter (Arcadis) confirmed soil and groundwater impact, including liquid -phase hydrocarbons (LPH) within 35 feet of the Facility USTs. The investigation recognized the source as broken seals in the UST drop tubes and identified a preferred pathway for discharge of diesel to a storm sewer near the USTs. That pathway was a 4-inch drain pipe, which was subsequenity closed. As a result of the release 13,212 gallons of liquid -phase hydrocarbon (LPH) were recovered and 300 tons o f contamin ated soils were removed. A 20054 Diesel Fuel 1999 CAP was previously proposed by Sierra Piedmont Engineers and Geologists and approved by DENR in September 2003. It consisted of quarterly Aggressive Fluid and Vapor Recovery (AFVR) for one year with two AFVR events the following year. Groundwater samples were to be collected one week after each AFVR event. Between March 2003 and November 2004, three AFVR events removed a total of 3,194 gallons of water and 133 gallons of LPH. In November 2004, DENR reclassified the release to a lower risk and TA suspended remediation, but in September 2007 DENR raised the risk level and required TA to implement the approved September 2003 CAP. The April 2006 release was manifested as soil impact by diesel fuel under the diesel dispenser pad discovered during a dispenser replacement project. The quantity of diesel fuel released was unknown. The vicinity of the diesel dispenser pad was investigated by 30813 Diesel Fuel April 2006 a LSA dated February 2007. The LSA did not detect a soil impact at the locations of the soil borings; however, well DDMW-02 con firmed a groundwater impact west of the dispenser pad. The site risk is high due to wells within 1,500 feet of the Site and as a result a CSA is being prepared. None Diesel Fuel 2047 Eagle Transport Corporation was responsible for the 2007 release, which was caused by overfills of the diesel Fuel USTs. Approximately 6.79 tons of soil, one AFVR event on MW-12, a quarterly monitoring and groundwater sampling of MW-12 was conducted. Assi ed This release was not assigned an incident number, and was issued a Notice of No Further Action by DENR in September 2008. NOTES: 1) UST -Underground Storage Tank 2) FRP-Fiberglass Reinforced Plastic 3) ATG-Automatic Tank Gauging TABLE 3 Public and Private Water Supply Well and Other Receptor Information TravelCenters of America 1101 NC Highway 61 Whitsett, Guilford County, North Carolina Facility 1.D.: 0-029186 Incident Number.: 30813 13'cll l D/Propert} Phone Well Casing Depth Well Screen Distance and Direction from Well Owner & User Well Location Address Wcll Use Well Depth (ft hgs) Type of Well Up or Dongradient Parcel tiuirtber Number ft h s Interval ft b s source area of release ft 02-02-0080-0-008 1 -00- Clapps Chapel AME Church 1301 Piney Grove Road, 336-273-5757 drinking ; Unknown Unknown Unknown 530 to the southwest Duwitgracii011t 018 Owner and User Whitsett, NC 27377 02-02-0080-0-0081-00- George, Timmy & Amy- 7207 Greeson Road, 336-449-5796 drinking, irrigation 18-1 Unknown Unknown Unknown 620 to the north Upgradient 048 Owner and User Whitsen, NC 27377 02-02-0080-0-0081-00- Mr. James David & Frances 1010 Highway 61 N., 336-449-5124 drinking 400 Unknown Unknown Unknown 910 to the northwest Upgradient 022 P. Workman-OwnerfUser Whitsett, NC 27377 02-02-0080-0-0081-00- Mr. Ronald Lee Key- 1017 Highway 61 N., drinking & household 336-449-754D >Iaa Unknown Unknown l:nlcno.,� ii 650 to the north Upgradient 042 Owner/User Whitsett, NC 27377 use 02-02-0080-0-0081-00- Mr. Donald R. and Bernice 1015 Highway 61 S., drinking, irrigation, 336-445-03I9 Unknown Unknown Unknown Unknown 830 to the north Upgradient 043 Emmons-OwnerfUser Whitsett, NC 27377 livestock 02-02-0080-0-0081-00- Ms. Etta L. Ingle- 10I9 NC Highway 61 S., 336-446-0263 drinking Unknown Unknown Unknown Unknown 410 to northwest Upgradient 050 Owner/User Whitsett, NC 27377 02-02-0080-0-0081-00- Mr. Charles Baxter Smith- 1205 NC Highway 61 S., Unknown drinking Unknown Unknown Unknown Unknown 1,000 feet to the south Downgradient 014 Owner/User Whitsett, NC 27377 02-02-0080-0-008 1 -00- Mr. David Ingle- 1008 NC Highway 61, Unknown nknnwn Not Used Unknown Unknown Unknown Unknown 960 to the northwest Upgradient Owner/User Whitesett, NC 27377 Other Receptors Receptor I❑ Description Location Contact Phone Number Usage Distance and Direction from Up or Downgradient o source area of release ft Diesel Fuel Pipelines Fueling i lines from UST field to dispensers West Side of diesel fueling canopy (Figure 2) Jim Schenker (TA) 404-808-7368 Diesel fueling At source area Downgradient USTs UST field Southeastern corner of property Jim Schenker TA 404-808-7368 Diesel fueling 150 feet southwest Downgradient OilfWater Seperator Drains lead into seperator prior to discharge Southwestern side of Service Station Jim Schenker (TA) 404-808-7368 Oil[Water 300 feet southeast Upgradient Se ration Water SuRply Line Gibsonville Water Supply Lines Along Greeson Road (Figure 2) City of Gibsonville 339-449-4144 Water Sum& 200 feet north UpEadicnt Drain Lines Drains and piplines from diesel fuel dilLensing area Onsite-throughout (Figure 2 Jim Schenker TA 404-808-7368 Drains At source area Down & Crossgradient Storm Sewer Storm drains along Route 61 and in landscaped area at Site Southwestem border of Site Unknown Unknown Roadway Drains 170 feet south Downgradient Retention Pond Pond for collection of storm water runoff Southeastern border of Site Jim Schenker (TA) 404-808-7368 Collection of 1000 feet southeast Upgradient runoff Un-named tributa Un-named, intermittent tributary to Alamance Creek Eastern border of Site Unknown Unknown I Stream 1000 feet east Upgradient NOTES: 1) ft bgs-feet below grade surface 2) Sources: February 2007 Limited Site Assessment Report for Incident #30813 and August 13, 2003 Corrective Action Report for Incident #20054. H:1JobslTA 0peratinglGreensboro, NClirtcident 303181CAPITable 3-Water Supply Well Information 4-12-10.xIs 5/21/2010 12:38 PM TABLE 4 Adjacent Property Owners/Occupants TravelCenters of America 1101 NC Highway 61 Whitsett, Guilford County, North Carolina Facility I.O.: 0-029186 Incident Number.: 30613 Map ID Tax Parcel Qwner/Occupont Name Property Address Contact/Mailing Address Current Property Use NumbertMep ID (Last, First MI) 02-02-0080-d 1019 NC Highway 61, PO Box 24. Whitsett, NC 1 0081 00 050 Ingle, Etta L. Whitsett, NC 27377 27377 Residential 2 02-02-0080-0- Ingle, G. D. 7205 Greeson Road, PO Box 142. Whitsett, NC Residential 0081-00-067 Whitsett, NC 27377 27377 3 02-02-0080-0- George, Timmy &Amy 7207 Greeson Road, 7201 Greeson Road, Residential 0081-00-048 Whitsett, NC 27377 Whitsett, NC 27377 4 02-02-0080-0- Davis, Kibble T. & Karen 7211 Greeson Road, 7211 Greeson Road, Residential 0081-00-020 G. Whitsett, NC 27377 Whitsett. NC 27377 5 02-02.0080-0- Pierre, Earlene S. 7217 Greeson Road, 6903 Stone Bridge Court, Residential 0081 00 04❑ Whitsett, NC 27377 Alexandria, VA 22406 6 02-02-0080-0- Rehm, Deryn B. & Angela 7223 Greeson Road, 7223 Greeson Road, Residential 0081-00-038 C. Whitsett, NC 27377 Whitsett, NC 27377 7 02-02-0080-0- Monoghan, Ernest G., Jr. & Ernest 7225 Greeson Road, 7225 Greeson Road, Residential 0081-00-035 Noppanit Whitsett, NC 27377 Whitsett, NC 27377 8 02.02-0080-0- Norton, Steven F. & Diane 7227 Greeson Road, 7227 Greeson Road, Residential 0081-00-032 L. Whitsett, NC 27377 Whitsett, NC 27377 9 02-02-0080-0- Crafton, Morris L. & Pace 7230-7232 Greeson Road, 150 Stratford Court, VacanVUndeveioped (Wooded 0081-00-051 Distributing Co., Inc. Whitsett, NC 27377 Winston Salem, NC 27103 and fields) 10 02-02-0080-A- Jarrell, Barbara H. 8 T.R. 1638-R12 Wheeler Bridge 3694 Davis Cup Dr., Vacant/Undeveloped 0081-00-011 Humphrey Road, Whitsett, NC 27377 Greensboro, NC 27406 (Wooded) 02-02-0080-A- Jarrell, Barbara H. & T.R. 1638-R13 Wheeler Bridge 3694 Davis Cup Dr., Vacant/Undeveloped 11 0081-00-012 Humphrey Road. Whitsett, NC 27377 Greensboro, NC 27406 (Wooded) 02-02-0080-0- 1201-1203 NC Highway 61 PO Box 341. Burlington, Vacant/Undeveloped 12 0081-00 062 Cara LP S, Whitsett, NC 27377 NC 27216 (Wooded) 13 02-05-0303-0- Gipple, Mary S. 1025 Penn-LO ❑r, 1500 Hobbs Road, Vacant/Undeveloped❑112-00-005 Whitsett, NC 27377 Greensboro, NC 27410 14 02-D2-0080-0- Clapps Chapel AME 1122.1124 NC Highway 61 1301 Piney Grove Read, VacantlUndeveloped (Fields) 0061-00-018 Church S, Whitsett, NC 27377 Whilsett, NC 27377 02-02-0080-0- Haley, Kimberly W. & C.G. 1100-1120 NC Highway 61 7210 Whitsett Paris Road, Residential and 15 0081-00-021 Wheeler S. Whitsett, NC 27377 Whitsett, NC 27377 VacanVUndeveloped (Wooded and Fields) TABLE 5 Groundwater Elevation and Product Thickness TravelCenters of America 1101 NC Highway 61 Whitsett, Guilford County, North Carolina Facility I.U.: 0-O29186 Incident Number.: 30813 Well11) Date Screened Interval (top of screen to bottom of screen in feet Depth to Water- Uncorrected [feet] Free Product 'Thickness (feet) Depth to Water- Corrected Top of Casing Elevation (feet) Groundwater Surface Elevation feet 3/18/2008 5.15 7.52 7-52 100.00 92.48 4/1/2009 01 0+ 100-00 >100.00 MW-4 4/28/2009 5.03 5.03 100.00 94.97 5/28/2009 7.21 7.21 100.00 92.79 911/2009 10.93 10.93 10(.00 89.07 12/22/2009 0+ 10.93 100.00 >100.00 3/2712009 4-14 2.84 2,84 92.24 89.40 4/28/2009 3.05 3.05 92.24 89.19 MW-15 5/28/2009 3.53 3.53 92.24 88.71 9/112009 5.37 -- 5.37 92.24 86.87 12/22/2009 1.83 - 1.83 92-24 90.41 3/24/2009 16-31 24.80 - 24.80 94.18 69.38 361/2009 7-72 -- 7.72 94.18 86.46 4/1/2009 7.69 -- 7.69 94.18 86.49 CSAMW-1 4/28/2009 8.50 -- 8.50 94.18 85.68 5/28/2009 9.01 -- 9.01 94.18 85.17 9/1/2009 9.82 -- 9.82 94A8 84.36 12/22/2009 6.87 6.87 94AS 87.31 3/31/2009 60-70 18.05 18.05 97.75 79.70 4/28/2009 44.15 44.15 97.75 53.60 CSAMW-2 5/28/2009 3.22 3.22 97.75 94.53 9/1/2009 19.06 19.06 97.75 78.69 12/2212009 15.70 15.70 97.75 82.05 3/31/2009 10-25 5.48 5.48 98.39 9191 4/1/2009 2.79 2.79 98.39 95.60 CSAMW-3 4/28/2009 3.30 3.30 98.39 95.09 5/28/2009 3.18 3.18 98.39 95.21 9/1/2009 9.88 9.88 98.39 88.51 12/22/2009 3.05 3.05 98.39 95.34 3/31/2009 65.75 53.10 53.10 99.09 45.99 4/28/2009 3.56 3.56 99.09 95.53 CSAMW4 5/28/2009 3.31 3.31 99.09 95.78 9/1/2009 13.37 13.37 99.09 85.72 12/27/2009 9.97 9.97 99.09 89.12 10/3/2006 15.28-29.65 16.94 1&94 101.22 84.28 3/31/2009 4.29 = 4.33 97.78 93.45 DDMW-2 4/28/2009 5.54 5.54 97.78 92.24 5/28/2009 8.05 8.05 97.78 89.73 9/1/2009 10.43 10.43 97.78 87.35 12/22/2009 4.28 4.28 97.78 93.50 NOTES: 1) ft bgs-Feet below grade surface 2) Top of casing elevations based on a arbitraury datum of l00 feet. 3) Top of casing elevations measured on March 3I, 2009. 3) 0+ indicates the well began flowing after the compression cap was removed. TABLE. 6A Summary of Groundwater Sampling Results TravelCenters of America 1101 NC Highway 61 Whitsett, Guilford County, North Caro Iin2 Facility 1.D.. "29186 Incident Number.: 30813 Contaminent of Concern $e gene IF.Ih%I benzcrte toluene \ 1ene5 Ace- rta hthene :1rc- na hth, lene Anthracene IBednzo(a)- amhracenc Benzo(a)- rcnc Benzo(b)- fluoranthene Benzo(g.h,i)- lene Benzo(ky- fluoranthenc C:h acne Dibenzo(a,h)- andtrcene Fluor- antkrene Fluorenc Indeno(1.2,3- cd - rene Na hthaleue Phcnan- [hrenc Pwcne 4Ie[hrl- a t hihalcnc 2-llethyl- na h[haleae Sacrrplr ID Dare C'ollecteri Source Area Incident Phase CSAMW-1 4/112009 Diesel Dispensers CSA <0.18 <0.2 <0.25 <0.22 <0.067 0.84 <0-046 <0.11 <0.047 2 <O 17 0.13 J <0.073 <0-14 <0.054 1 <0.18 <0.099 <0.062 <0.038 <0.074 <0.056 CSAMW-1-D 41112M Diesel Dispensers CSA <0.18 <0.2 <0.25 <0.22 <0.067 <0.057 <0.046 <0.1 I <0.047 <0.095 <0.17 i <0-072 <0-073 <0.14 <0.054 1 <OA8 <0.099 <0.062 <0.038 <0.074 <0.056 CSAMW-2 41I12009 Diesel Dispensers CSA <0.18 <0.2 <0.25 <0.22 <0.067 <0.057 <0.046 <0.11 <0.047 2 <0.17 0.14 J o0.073 <0.14 <0.054 0.98 <0.18 <0.099 <0-062 <0.038 <0.074 <0.056 CSAMW-3 4/1/2009 Diesel Dispensers CSA 0.96 J 4.9 2.7 73 <0.067 <0.057 <0.046 <DA l <0.047 <O.D95 1 <0.17 <0.072 <0.073 1 <0.I4 <0.054 <0.07 <0.18 <0.099 14 4.2 64 70 CSAMW4 4/1/2009 Diesel Dispensers CSA <0-18 <0.2 <0.25 <0.22 <0-067 <0-057 0.11 <0.11 <0.047 2 <0.17 0.I4 J <0.073 <0.14 <0.054 1.1 <0.18 <0.099 <0.062 <0-038 <0.074 <0.056 MW4 4/1/2009 Diesel Dispensers CSA <O.ig <0-2 <0.25 <0.22 <0.067 <0.057 <0.046 <0.11 <0,047 <0.095 <0-17 <0,072 <0.073 <0.14 <0.054 0.96 <0.18 <0.099 <0.062 <0.038 <0.074 <0.056 MW-15 3127120D9 Diesel Dispensers CSA <O.18 <0.2 <0.25 <0.22 <0.067 <0.057 <0.046 <0.11 <0.047 <0.095 <OA7 <0.072 <0.073 <0.14 <0.054 1 <0.07 <0.18 <O.D99 <0.062 <0-038 <0.074 <0.056 DDMW-2 10/3/2006 Diesel Dispensers LSA 1.6 4.7 2.5 8.9 260 4,100 450 140 1 19 u Nit NR NR NR 950 450 NR 770 620 230 NR NR DDMW-2 9/2/2009 Diesel Dispensers CSA Ls <0.16 <037 <0-24 <0-I1 <0-084 <0.59 <0.}1 <0.13 <0.13 <0.17 <0.17 <0A5 <0.19 <0.19 <0.11 <0.16 <0.061 <O.13 <0.074 <1099 <0.076 DDMW-2 12122/2009 Diesel Dispensers CSA <0.39 <0.48 <0.37 <1.8 <1A <0.84 <5.9 <l.l 1 <1.3 <1.3 <1.7 <1.7 1 <1.5 <L9 <1.9 <Li <I.6 <0.61 <13 tl <0.89 <0.76 2L Standard 1 550 1 000 530 8O 210 2 10D 0.0479 O.OD479 0.D479 210 OA79 4.79 0.0047 280 280 0.047 21 210 70 NA 14 GCL L 5,ODD 84,500 257,500 87,500 2,120 1,965 2,100 22 L5 0.6 210 OA 4.79 1 0-25 28O 950 31 15,500 _ 410 30,DDO NA 12,500 NC 2B Standard or EPA National Groundwater CnWia (pg/L)i 5 700.0 1,000 10,000 NA NA NA NA 0.2 NA NA NA NA I NA NA NA NA NA NA NA NA NA Notes: GCL-Gross Contamination Levels 2L Standard=North Carolina Groundwater Quality Standards (GWQS) Results reported in pg/L & reporting limits are at the method detection limit (MDL) pg/L-milligrams per liter J-Estimated value between the reporting limit and MD NA -Not Applicable Groundwater standards taken from July 15, 2008 Guidelines for Assessment and Corrective Action far UST Releases Bald value indicates detections Bold and shaded values indicate exceedance of the Soil to Groundwater MSCC EPA -Environmental Protection Agency BRL-Below Reporting Limit Analytical method 8021E used for volatile organic compounds analyses on March 2009 Analytical method 8270C used for polynuclear hydrocarbon analyses on March 2009 CSAMW-I-D is a duplicate sample ofCSAMW-I DDMW-2 not sampled due to liquid phase hydrocarbons ZLPH) TABLE 6B Summary of Groundwater Sampling Results TravelCenters of America 1101 NC Highway 61 Whitsett, Guilford County, North Carolina Facili l.D.: 0-029186 incident Number.: 30813 Analytical Meth MADEP Volatile Petroluem H drocarbons (VPH) MADEP Extractable Petroluem Hy drocarbons EPH C9-C22 Aromatics Ad usted C9-C18 Aliphatics (Ad rusted) Contarninent of Concern C5-C8 Aliphatics xl C9-Ct0 Aromatics (c) C9-C12 Ali hatics fa C11-C22 Aromatics d C19-06 Ali hatics C9-Ct8 Aliphatics h Sample if] Date Collected Source Area Inruluu i+llase CSANIN-1 4/1/2009 Diesel Dis ensen CSA 9. 1.1 7.1 J 110 J <36 16.1 110.1 23 J CSANI'<'<'-1-1) 4/1/2009 Diesel Dispensers CSA <9.7 ].I 3 1001 <36 <6.4 1003 1Z CSAMW-2 41I12009 Diesel Dispensers CSA <9.7 <1.1 193 130 J 49 J 8.7 J 1303 28.1 CSAMW-3 4/1/2009 Diesel Dispensers CSA 17 J 520 Soo ] 00 1,200 3,900 1,920 39960 CSAMW-4 4/1/2009 Diesel Dispensers CSA <9.7 al.l <6.3 140 J 50 J <6.4 140 J <12 MW-4 4/1/2009 Diesel Dispensers CSA <9.7 29 151 1303 <36 <6.4 159 J <6.4 M W-15 3/27/2009 Diesel Dispenser, CSA <9.7 <Ll <6.3 86 J <36 <6.4 86 J <12 DDMW-2 10/3/2006 Diesel Dis users LSA NR 530 880 800,000 1.90010M 6.400.000 800.530 400 0 DDMW-2 9/2/2009 Diesel Dispense" CSA [9.7 too 210 360 <36 S? .1 460 162 DDMW-2 12/M212009 I Diesel Dis users CSA <9.7 50 400 1,600 700 2.800 1,650 3,150 2L Standard 420 NA NA 210 42,000 4,200 210 4,200 GCL NA NA NA NA NA NA NA NA NC 2B Standard or EPA National Criteria (p L NA NA NA NA NA NA NA NA Notes: GCL-Grass Contamination Level! 2L Standard=North Carolina Groundwater Quality Standards (GWQS' Results reported in pg/L 8t repotting limits are at the method detection limit (MDL pg/L-milligrams per liter J-Estimated value between the reporting limit and MDL NA -Nat Applicable/Not Analyzed Groundwater standards taken from July 15, 2008 Guidelines For Assessment and Corrective Action for UST Releases Bold value indicates detections Bold and shaded values indicate exceedance of the Soil to Groundwater MSCC EPA -Environmental Protection Agency C9-C22 Aromatic (Adjusted)=c+d C9•C18 Aliphatics (Adjusted)=(a-c)+b Sample MW-16-D is a duplicate sample of MW-16 BRL-Below Reporting Limir CSAMW-I-D is duplicate sample ofCSAMW-I DDMW-2 not sampled due to liquid phase hydrocarbons (LPH) NR-Not reported Table 6C Groundwater Physical Parameters TravelCenters of Amcrica 1101 NC Highway 61 Whitsett, Guilford County, North Carolina Facility 1.D.: 0-029196 Incident Number.: 30813 Temperature Conductivity D.U. TDS Redox Location Date °C nH Slcm m *Il. mgAL mV 5:alinity % CSAMW-1 41112009 18.2 6.43 0.751 3.09 260 114 0.03 CSAMW-2 4/1/2001 18.6 6.77 0.970 8.96 515 239 0.04 CSAMW-3 4/1/2009 17.6 6.69 3.79 3.47 1,950 64 0.19 CSAMW-4 4/1/2009 18.7 7.27 0.903 6.84 275 23 0.04 MW4 4/1/2009 16A 7.05 0.381 4.79 168 138 0.01 MW-15 3/27/2009 17.4 6.44 1 0.594 1 5.09 j 271 1 109 0.03 DDMW-2 9/2/2009 19.6 6.16 0.92 3.51 440 -29 0 DDMW-2 12/23/2009 16.9 6.30 0.432 NA 290 -33 0 Notes: . °C-degrees Celsuis 7. DDMW-2 not sampled due to the presence of product 2. Slem- per centimeter 8. Ali wells were purged by hand bailing 3. mg/L-milligrams per liter 9. Total Dissolved Solids (TDS) 4. mV-millivolts measured by laboratory for all samples 5. Meet 10. D.O.-Dissolved Oxygen 6. MW-4 was a flowing well at the time of sampling. 11. NA -Not applicable APPENDIX A Groundwater Modeling Documentation and Results The Benham Companies, LLC - an SAIC company INTRODUCTION — Revised 3108* Quick Domenico.xis (QD) is a Microsoft Excel spreadsheet application of "An Analytical Model For Multidimensional Transport of a Decaying Contaminant Species", by P.A. Domenico, Journal of Hydrology, 91 (1987), pp 49-58. QD solves the following equation with two modifications to be discussed below: � I erfc [x — 1 +4 v2 gu81+4�Il C(x,y,z,t)=) I2� 11 �J erf[(y+Y12)124t-ii]—e+---Y12)12�c-4xjj�erf��z+ZI2)2�ax]—e+—ZJ2)12�]} where: x = distance from planar source to the location of concern (i.e. property line) along the center line of the plume. C(x,y,z,t) = the concentration of the Contaminant at location x, y, z from the source at time t. Q, = source concentration - the highest concentration of the contaminant in the groundwater at the source. a,,=dispersivity in the x direction. ay = dispersivity in the y direction . a,, = dispersivity in the z direction. erf = error function erfc = complementary error function k= hydraulic conductivity. i = hydraulic gradient ne = effective porosity (entered as a decimal fraction - (i.e..25) v = specific discharge. (kiln,) k =1st order decay constant. SW = width of source area. SZ = depth of source area. x,y,z - these are the spatial coordinates in the horizontal, transverse and vertical directions that define the point or points where concentration information is desired. t - this is time since the plume source started moving In QD this equation has been modified in two ways_ First, "v" has been modified to include a retardation factor defined as 1+ (KOC*foc*pt,l nj. where: KOC = the organic carbon partition coefficient foc = fraction of organic carbon expressed as a decimal percent pe= the dry bulk density of the aquifer matrix and n, = effective porosity. Secondly, the term "Z12" in the last two error function terms of the equation have been replaced by "Z" as described by Domenico (1987), page 53, to account for dispersion in the vertical axis in only the downward direction, as would occur with contaminants at the water table in a thick uniform aquifer and the source geometry for which this application is designed. SYSTEM REQUIREMENTS IBM Compatible PC Windows 3.1 or later Microsoft Excel 5.0 or later - with Analysis Too] Pack running. (On menu bar, click Tools, AddIns, Analysis ToolPak) Intel 486 (or comaptible) or later processor recommended. General Application Information Overview Quick Domenico(QD) calculates the concentration of contaminant species at any point and time downgradient of a source area of known width, thickness and strength. The kinds of contaminants for which QD is intended are dissolved organic contaminants whose fate and transport are can be described or influenced by first order decay and reaction with organic carbon in the soil. The model allows for first order decay, retardation and three dimensional dispersion, which will be discussed below. In addition, QD calculates the concentrations in a two dimensional 5x 10 grid whose length and width are set by the user. The output of the grid is plotted on an Excel chart each time the any element of the input data is changed. This allows users to see almost immediately the effects of changes in input data. Upon selection and input of the final input parameters, the output can be printed on any Windows compatible printer using a pre-set print area. Limitations QD is based on the Domenico analytical model referenced above. Only a single value of any one of the 20 or so flow and transport parameters required by the model are allowed at any one time. Therefore the model should not be used where any of these parameters vary significantly in direction or magnitude over the model domain. Further, QD uses physical properties of the soil such as dry bulk density and fraction organic carbon which are difficult to relate to or determine for fractured bedrock aquifers. Therefore QD should be used with caution in these environments. Q❑ is primarily intended for use in unconsolidated (soil) aquifers with reasonably uniform physical and hydrogeologic properties. QD is primarily intended for use with dissolved organic compounds and radioactive compounds that may react with organic carbon in the soil and/or may be subject to biodegradation or reaction that can be described by 1 st order decay. The fu^st order decay constant (lambda) should be set to zero where the biodegradability of the compound or its decay rate is questionable. (e.g. MTBE). QD is not appropriate for use with organic compounds that are undergoing transformation to daughter compounds (e.g. TCE to DCE). QD considers compounds individually and assumes no reaction between compounds. Despite these many limitations, the Domenico model has been successfully applied to actual data from contaminated sites. In addition, QD has application as a "conceptual" model where hypothetical or "worst case" conditions are investigated. By using conservative input assumptions, QD may be useful in Pennsylvania's Land Recycling Program in providing quantitative support to qualitative fate and transport analyses based solely on professional experience or opinion at sites which do appear to justify the time, expense and data requirements associated with more rigorous numerical modeling efforts. Color Scheme The cells in the spreadsheet have been color coded to assist in use and understanding. Light Green - these cells allow the user to enter data. Light Yellow - these cells are locked and calculated by the spreadsheet. Other Colors - these cells are used for labels and other information not critical to use of the application. Units Where input requires a certain unit of measurement, it has been indicated. Because the spreadsheet contains internal formulas that depend on the units of the input data, use of improper units will result in spurious results. Cell By Cell Description - Input Data The following section discusses the information that is input cell by cell. The discussion will emphasize conservative selection of parameters where appropriate. 132: D2 Enter project name B3 Enter the date that application was prepared. A9 Source Concentration in mgll - QD allows one source concentration which is applied to the entire width and thickness dimensions of the source. The source is presumed to be continuous, which makes QD inherently conservative for use at sites where sources have been removed or remediated. For conservative use, enter the highest concentration in the groundwater determined from the site characterization. B9 Distance to Location of Concern (x) (in feet) - this is the distance measured from the source, perpendicular to the water table contours, to the point where a concentration is desired. C9 Longitudinal Dispersivity - (Ax) - dispersion parallel to the direction of groundwater flow and water table. D9 Transverse Dispersivity - (Ay) - dispersion perpendicular to the direction of groundwater flow and parallel to the water table. E9 Vertical Dispersivity - (Az) - dispersion perpendicular to the direction of groundwater flow and water table. In QD, only vertical dispersion downward below the water table is considered. These parameters are dispersion terms which describe the extent to which contaminants spread out from the source into areas that cannot be accounted for by advective transport alone. Initially these parameters are often estimated and then adjusted in order to calibrate a model to better fit actual field conditions. Several relationships have been proposed for initial estimates of Ax, Ay, and Az. These are: Ax- Xl10 where X is the distance a contaminant has traveled by advective transport (i.e. velocity x time) Ay = Axl1 Q Az = Ax120 to Axll q00. In general, it is recommended for conservative use of QD to use a very small vertical dispersion of .001, unless vertical monitoring and calibration can reliably justify a larger number. Because of the way QD is set up, a vertical dispersion of zero cannot be used. A value of about .001 is suggested for initial uncalibrated or conceptual applications. F9 Lambda (days) - this is the first order decay constant. It is determined by dividing .693 by the half-life of the compound (in days). The value is determined from literature or by calibration to existing data. Dispersivity values and lambda are the two most important calibration terms available in this application. QD is very sensitive to the lambda term. For conservative use of QD, use the lowest lambda from the range of values listed in literature references. For compounds that are not biodegradable or at sites where biodegradation is not occurring use a lambda of zero. For initial estimates of lambda, see Appendix A, Table 5 of the Act 2 regulations. G9 Source Width (R) - enter the maximum width of the area of contaminated soils that have been impacted, or the maximum width of free product or smear zone of contamination measured perpendicular to the direction of groundwater flow. Data should be based on and justified by site characterization data. H9 Source Thickness - typically this is the thickness of contaminated soils that contribute contamination to the water table plus the water table fluctuation that creates a smear zone. A 14 Hydraulic Conductivity (k)(fllday) - the hydraulic conductivity of a geologic material is a measure of it's ability to transmit water. The hydraulic conductivity is determined from pumping or slug tests or, sometimes, laboratory tests using standard ASTM or other methods described in numerous hydrogeology text books. QD allows only one hydraulic conductivity measurement to be input. For conservative use, use the highest conductivity value measured at the site. B14 Hydraulic Gradient (ft/ft)- this is the slope of the water table in the direction of ground water flow. QD assumes horizontal flow and a uniform hydraulic gradient (planar water table). Hydraulic gradient of the water table should be measured at each site. A minimum of three wells drilled to the same depth into the geologic formation is required to determine the hydraulic gradient. C14 Effective Porosity - (decimal fraction- e.g..25) — effective porosity is the dimensionless ratio of volume of interconnected void spaces in a geologic material to the total volume of material. Effective Porosity can be determined by sending soil samples to a laboratory or, if the texture of the material is well described, by estimating the value from text books or literature references. For conservative use of QD use a reasonably low effective porosity value from the range of measured or estimated values. D 14 Soil Bulk Density -(Pb) (glcm3) - this is the dry weight of a sample divided by its total volume in an undisturbed state. QD is not particularly sensitive to this parameter. Samples can be sent to a lab for measurement or a value of 1.8 is often estimated. E 14 KOC - this is the organic carbon partition coefficient and is chemical specific. During formulation of the Act 2 regulations, the Department went to considerable time and expense, using outside expertise, to develop the most up-to-date KOC values. These are provided in Appendix A, Table 5, of the Act 2 regulations. Use these KOC values unless the KOC value is determined for the specific site. F14 Fraction Organic Carbon (foc) - (decimal fraction) - this is the organic carbon content of the soil. This value can be determined by a soil laboratory using ASTM methods. Samples for organic carbon should be taken from the same soil horizon in which the contaminant occurs, but from an area that has not been impacted. For conservative use of QD, use the lowest of the range of values determined or estimated. One/half of one per cent (.005) is a commonly estimated value. G14 Retardation - the spreadsheet calculates this value automatically. It is defined as 1 + (KOC* foc *pbtn). H 14 Velocity (V) - (ftlday) - is the rate of groundwater flow. The spreadsheet calculates this value automatically from the previous inputs. A18 This cell is automatically filled by transfer of the `X' coordinate in B7. The value is repeated here simply to facilitate the view of the x, y and z coordinates for which the spreadsheet calculates a solution. 1318 `y' (ft) This is the `y' coordinate for which a solution is desired. For a solution on the centerline of the plume downgradient from the source, y would be set equal to zero. Otherwise'y' is equal to distance that the location of concern is offset from the centerline along a line perpendicular to the centerline. Both positive or negative values may be entered; however, because QD provides a symmetrical solution, there is no difference in the values obtained. C 18 `z' (R)This is the `z' coordinate in the vertical axis at x,y of the location of concern. For most applications this should be left at zero since this value will yield the highest concentration which is at the water table. D18 `t' - (days) - this is the time (in days), after a contaminant began moving in the groundwater, for which a solution is desired. By adjusting the spreadsheet with the scroll bars so that both the grid, graphic chart and time can be seen at the same time on the screen, adjusting the time progressively upward provides a graphical way to determine at what time steady state is reached for the particular set of input conditions represented by the input data. C26:C27 These cells are where the user sets the grid dimensions for the 5 by 10 grid that appears in cells C29::K33. By setting length at 500 ft and width at 50 feet, for example, the grid would cover a length of 500 feet and a width of 50 feet on either side of the source origin. Concentrations in the plume are calculated increments of lengthl10 or 50 feet in this example, and for width/ 2 or 25 feet. By changing grid sizes, the user will very quickly see how grid dimensions are affected. Output Data A22:B22 These cells contain the source concentration calculated for the specific location and time defined in A 18 through D 18_ B29:K33 These cells contain the output for the grid defined by the grid dimension input in A26 and A27. For the grid output, z is fixed at zero by the spreadsheet. The output from the grid is automatically displayed in a Microsoft Excel chart located above the grid. The following data is the minimum that should be derived from the site characterization for use in many models although specific models may require more: Source Geometry and Concentration Groundwater Flow Direction Hydraulic Conductivity Hydraulic Gradient Fraction Organic Carbon unless assumed to be .001 The following data may be derived from literature values or estimated based on other site characteristics : Organic Partition Coefficient (Koc) First -Order Decay Coefficient (Lambda) Soil Bulk Density Effective Porosity * Revised 3-08 to correct the porosity term (n) to effective porosity (ne ) Benzene ADVECTIVE TRANSPORT WITH THREE DIMENSIONAL DISPERSION, 1ST ORDER DECAY and RETARDATION - WITH CALIBRATION TOO Prole--t: i A - reenS oro, ❑ate: 511112010Prepared by Kent Littletield Contaminant lBenzone NEW QUICK_DOMENICOJXLS SOURCE Ax Ay Az LAMBDA SOURCE SOURCE Time(days) SPREADSHEET APPLICATION OF CONC 01) (ft) UP WIDTH THICKNESS 8 5 "AN ANALYTICAL MODEL FOR (MOIL) a=.001 day-1 tit (fI) MULTIDIMENSIONAL TRANSPORT OF A 0.0015 2.20E+01 7.33E+0U 1.10E+00 0.001 40 10 3650 DECAYING CONTAMINANT SPECIES" P.A. Domenico (1987) Hydraulic lHydraulic I IS011 Bulk I lFrac. Retard- V Modified to Include Retardation Cond Gradient Pvraslty I Denslty I KOC 10ra. Carb. lation (=K*Vn'RI Point Concentration F- x y z 220 0 0 x Conc. At 2201 0 at 36501 days = MODEL DOMAIN Length (ft) 40 Idth �tt) 40 4 8� 40 0-000 0-000 20 0-001 0.001 0 0.001 0.001 -20 0-001 0-001 -40 0-000 0-000 Field Data: Centerline C Concentration Distance from Source Centerline Plot (linear) 0-00 o-oa 0-00 u 0.00 0 0-Do I'll 0.00 0.00 0 16' - - - - 20 40 distance 20 omo 9 dl 0.000 0.000 0.000 0.000 0-001 0.000 0-000 0-000 0.000 0.000 0.000 0.000 Page 1 60 241 0.000 O.00D Centerline Plot slog] 1.000 , Model output 0.100 +Fkcu Data Alo 0.001 ♦ ♦ 0.000 0 10 2d9istance30 40 50 28 321 36 40 0.000 0.000 0-00D 0.000 0.000 0.000 0.000 0.000 O.D00 0.000 0.000 0-000 0.000 0.000 0-000 0.000 0.000 0.000 0.000 0.000 2-Methyinaphthaiene ADVECTIVE TRANSPORT WITH THREE DIMENSIONAL DISPERSION, IST ORDER DECAY and RETARDATION -WITH CALIBRATION Proyect: reerl5 or0, Date: 511112010 Prepared by Kent Littlelielcl Contaminant 2-Methylnaphthalene i- TOO NEW QUICK_DOMENICO.XLS - SPREADSHEET APPLICATION OF "AN ANALYTICAL MODEL FOR MULTIDIMENSIONAL TRANSPORT OF A DECAYING CONTAMINANT SPECIES" P.A. Domenico (1987) Modified to Include Retardation SOURCE Ax Ay Az LAMBDA ISOURCE SOURCE Time ay5 CONC {ftj (ftj (ft) IWIDTH THICKNESS ay5 (MG1L) a=.001 day-1 (ft) RQ 0.07 2.20E+01 7.33E+00 1.10E+00 0 40 10 3650 Hydraulic Hydraulic I ISoil Bulk I I Frac. a IV Cond Gradient jPorosity jDansity I KOC jOrg. Carb. lation (=K`Iln•R) (ifldayj (ftlft) (dec. frac.) cm R {ftldayi 3.10E-02 0.073 0.1 1.33 16000 5.00E-0+t 107A 0-000210708 1.000 0-100 L Centerline Plot (log) ♦ MOM output f Field • Dat, Point Concentration Centerline Plot (linear) 0.03 MOM output 0.02 Field # u0.02 Data 00.01 001 0.00 0 20 40 60 distance - 76 26 24 71 X y 1 z 220 Q d x x Conc- Al 220 0 at 3650 days = 0.000 AREAL MODEL DOMAIN Length (ft 40 Length I 40 4 81 _ 12 0 10 2@stance 30 40 50 281 32 36 40 40 0.000 0.000 0-000 0-000 0.000 0-000 0.000 0.000 _ 0.000 0.000 20 0.010 0.004 0-001 0-000 0.000 0-000 0.000 0.000 0.0D0 0.000 0 D.020 O.007 .002 0.000 0.000 O.00D D.000 0.000 0-000 0-000 -20 0-010 0.004 0.001 0.000 O.DOO 0.000 D.000 0.000 0.000 0.000 -40 0.000 0-000 0-000 0-000 0.000 0.000 0.000 0.000 0.060 0-000 Field Data: Centerline C Concentration Distance from Source Page 1 ADVECTIVE TRANSPORT WITH THREE DIMENSIONAL DISPERSION - reen5 oro, NG _Project: Date: 511112010 Prepared by Kent Littletiela Contaminant C9-C22 Aromatics SOURCE Ax Ay Az LAMB CONC 00 00 (it) (MGIL) a=.001 day-1 1.82 2.20E+01 7.33E+00 1.10E+00 Hydraulic Hydraulic Soil Bulk Cand Gradient Porosity Density KOC Mdayf iwftj dec. frac. glcm 3-1DE-02 0.073 0.1 1.33 (Point Concentration 0 [..onC. At at dais = MODEL DOMAIN Length (tt) 40 jVvidth40 4 8 40 O.Dfl3 0.013 20 0.350 0.196 0.693 0.366 _-20 0.350 0.196 -40 0.003 0.013 Field Data: Centerline C Concentration Distance from Source C9-C22 Aromatics 1ST ORDER DECAY and RETARDATION - WITH CALI Frac. Centerline Plot (linear) 0.s0 0.70 0-60 „0.50 0 0.40 n 0.30 0-2a 0.10 0-00 0 - 20 40 distance 60 0. 12 16 20. 24 0.012 0.006 0.D03 0.001 0.090 0.034 0.010 0.0031 0.156 0-055 0.016 .00 0.090 0-034 0-010 0.003 0.012 0.006 0.003 0.001 Page 1 NEW QUICIG_DOMENICO.XLS SPREADSHEET APPLICATION OF "AN ANALYTICAL MODEL FOR MULTIDIMENSIONAL TRANSPORT OF A DECAYING CONTAMINANT SPECIES" P.A. Domenico (1987) Modified to Include Retardation Centerline Plot (log) 1,D00 + * • D.1 DD , 0.010 08)01 D 000 0.000 D 10 `tT1stance30 40 5o 28 32 36 40I 0.000 0.000 0.000 0.000 0.000 0.000 D.000 0-000 0-001 -0 00 0.000 0.000 0.000 0.000 0.000 o.000 0.1OD 0.000 0-000 APPENDIX B CAP Calculations The Benham Companies, LLC - an SAIC company Appendix B Greensboro Travel Center, Whitsett, NC TravelCenters of America Calculation of Hydrogen Peroxide Oxidation Reaction for Residual Hydrocarbons in Well ❑DMW-2 Estimate of Residual Petroleum Hydrocarbon in DDMW-2: ❑DMW-2 is 2-inch well with 25 feet of water = 15 L Dissolved Concentration 4.8 mg/L EPH X 15 L = 0.073 g Minimum Detectable Free Product* at <0.01' = 4.1 g Total Hydrocarbons = 4.2 g Molecular Weight Petroleum Fuel (C15-H32): 237 glmole Hydrogen Peroxide (H2-02): 34 glmole Reaction Balance: If: Then: 15 1-12-02 + C15-H32 = 30 H20 + 15 CO2 15 moles H2O2 X 34 glmole = 510 g H2-02; and 1 mole C15-H32 X 235 glmole = 235 g C15-H32 Ratio of 1-12-02 to C15-H32 far complete reaction Amount of Hydrogen Peroxide for Complete Reaction: Using the Ratio of 2.17 H2-02 to C15-H32, the approximate 1-12-02 for complete reaction is: As a safety factor and to assure treatment of the DDMW-2 filter pack as well as the well internal surfaces assume a 3X amount of 1-12-02 at: Hydrogen Peroxide density = Hydrogen Peroxide at 5% dilution contains: 2.17:1 9.1 g 27.3 g 1430 g1L 71.5g/L Therefore: approximately 0.4 Liter 5% Hydrogen Peroxide is needed. * currently no free product has been detected for over 1 year. Oxygen Release Compound (ORC*) MATERIAL SAFETY DATA SHEET (MSDS) Last Revised: September 14, 2009 Section 1 - Material Identification Supplier: REGENESIS 1011 Calle Sombra San Clemente, CA 92673 Phone: 949.366.8000 Fax: 949.366.8090 E-mail: infn(rr_regentsis,com Chemical Description: A mixture of Magnesium Peroxide (M902), Magnesium Oxide (MgO), and Magnesium Hydroxide [Mg(OH)�1 Chemical Family: Inorganic Chemical Trade Name: Oxygen Release Compound (ORC ] Product Use: Used to remediate contaminated soil and groundwater (environmental applications) Section 2 — Chemical Identification CAS# Chemical 14452-57-4 Magnesium Peroxide (Mg02) 1309-48-4 Magnesium Oxide (MgO) 1309-42-8 Magnesium Hydroxide [Mg(OH)�1 7758-11-4 Dipotassium Phosphate (11K204P) 7778-77-0 Monopotassium Phosphate (H2K04P) Assay: 25-35% Magnesium Peroxide (Mg02) 110perations\MSDS10RC Page 1 Regenesis - ORC MSDS Section 3 - Physical Data Melting Point: Not Determined (ND) Boiling Point: ND Flash Point: Not Applicable (NA) Self -Ignition Temperature: NA Thermal Decomposition: Spontaneous Combustion possible at = 150°C Density: 0.6 — 0.8 glcc Solubility: Reacts with Water pH: Approximately 10 in saturated solution Appearance: White Powder Odor: None Vapor Pressure: None Hazardous Decomposition Not Known Products: Hazardous Reactions: Hazardous Polymerization will not occur Further Information: Non-combustible, but will support combustion Section 4 -- Reactivity Data Product is stable unless heated above 150 °C. Magnesium Stability: Peroxide reacts with water to slowly release oxygen. Reaction by product is Magnesium Hydroxide Conditions to Avoid: Heat above 150 °C. Open Flames. Incompatibility: Strong Acids. Strong Chemical Agents. Hazardous Polymerization: None known. J:\0pera1ions\MSDS''k0RC MSDS PaLe 2 Regenesis - ORC MSDS Section 5 - Regulations Permissible Exposure Not Established. Should be treated as a nuisance dust. Limits in Air Section 6 - Protective Measures, Storage and Handling Technical Protective Measures Stora^c: Keep in tightly closed container. Deep a►►a} from combustible material. Handling: Use only in well ventilated areas. Personal Protective Equipment (PPE) Respiratory Protection: Recommended (HEPA Filters) Hand Protection: Wear suitable gloves. Eye Protection: Use chemical safety goggles. Other: NA Industrial Hygiene: Avoid contact with skin and eyes Protection Against Fire & NA Explosion: Disposal: Dispose via sanitary landfill per state/local authority Further Information: Not flammable, but may intensify a fire After Spillage/Leakage/Gas Collect in suitable containers. Wash remainder with copious Leakage: quantities of water. Extinguishing Media: NA Suitable: Carbon Dioxide, dry chemicals, foam Self contained breathing apparatus or approved gas mask Further information: should be worn due to small particle size. Use extinguishing media appropriate for surrounding fire. After contact with skin, wash immediately with plenty of First Aid: water and soap. In case of contact with eyes, rinse immediately with plenty of water and seek medical attention. Section 7 - Information on Toxicology JA(VerationslMSDS10RC MSDS Page 3 Regenesis - DRC MSDS Toxicity Data: Not Available Section 8 - Information on Ecology M'ater Pollution Hazard 0 Raging (WGK): Section 9 - Further Information After the reaction of magnesium peroxide with water to form oxygen, the resulting material, magnesium hydroxide, is mildly basic. The amounts of magnesium oxide (magnesia) and magnesium hydroxide in the initial product have an effect similar to lime, but with lower alkalinity. The information contained in this document is the best available to the supplier at the time of writing, but is provided without warranty of any kind. Some possible hazards have been determined by analogy to similar classes of material. The items in this document are subject to change and clarification as more information become available. ]:1OperationslMSDS\ORC MSDS Page 4 � r j a s• }mom ' ' � Gremweson Road �2 .� UST System + �� r � ' �•, `� �� — ��- Pa�ceprive y� inrerstate 85 -� � r � I O <1 _.. .,- Note: The base map is from the USGS Gibsonvitle 7.5 mrn. Quadrangle. Legend 0 250 5w 1.000 - - - Surface Water Fee[ i Property Boundary TRAVELCENTER5 OF AMERICA GREENSBORO FACILITY ❑nsite Buildings N I ini NC Krr1IWAY 61, W111TSErr. N Site Location Nap Imo., AIiI . It'i'osr4 pp P74 "'urr rno Ie 5•Io•lo Jr1r dme O I ro. fl.nu _I GIB re.eon K:�GIS_Oa1MTXWhi1sett. 616ProodsGM13 - CARFig1-Topomap.rrmxd a 0 f ti r* r • Note: The base map is from the USGS Gibsonville 7.5 min. Quadrangle. Legend 0 250 5w I.DOO Cross Section Axes Fee[ PzZg - Metamorphosed Quartz Diorite TRAVELCENTERS OF AMERICA GREENSBORO FACILITY Property Boundary N 1101 NC IIIGH WAY 61. wrtlTSFTT. 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I,11111111,1,1,1,1,�llll�lyl,l ;, •; • ; ;; :; f�ri/i'1'I 1j1;1111111JIJ111J,1 ,Illll'lllll�ll�j,flll+i�i�!i� �i�!� I �JIJ111I111111,1,Jjljlj�ri�ji+�•E�j�+ In ti Ei= LEGEND MW-1 MONITORING WELL MVP-1 SOIL VAPOR IMPLANT +DP--1 DUAL PHASE ExTRAGFIoN WELL SUST W-1 UST FIELD MONITORING WELL UST UNDERGROUND STORAGE TANK AST ABOVEGROUND STORAGE TANK �E OVERHEAD ELECTRIC LINE UT--- UNDERGROUND TELEPHONE LINE I r- V STORM SEWER LINE —SS— SANITARY SEWER LINE DRAIN LINE DIESEL FUEL DISPENSER LINE --TD-- TRENCH DRAIN LINE OMH MANHOLE DROP INLET 150' D 150' pill SCALE IN FEET A a Mw-4 CSASB-7 CSASB-S CSAMw-3 DONW-3 C3ASB-3 CSASS-5 CSASB-4 CaAMw-i :.. .. — .. _ — CSASB-2 .01 met Horizontal Scale I" = 40'. x X X - Asphah & Gravel Groundwater Eb:valian (0) based on 1r2WO09 dala. Bedrock !Nowell W& available for .%P%-d. He►mliom bused upon an arhitmin dAtutn. _ —T ' tiaprvlilr {lands I'Ir� ti( lad � Geologic Crass -section North to South at dispenser pad. FIGURE 4 N Elevation (fret) G 111111111lr11 11111111y111 fllllllll'Ill rill yt l'1 y 11 ! 1 11111 , , i 1 , , ,1111 rfllllrl'1'1'1'1'Illlrlrlrlllrlilili' ! ! i lllljljl jll 111 � 1111 11111111111�11111111 � ,,,,,11111jtl1/11'1'f`t:i�� 1 r l,,, l l 11'1'1'111'1'1 rl'1 �I'1'1'111'11 � 111 l 1 i ,I,f1l1111�11111'l 1111111 1111111 rllll jl/11'1'11 /'1 jljl jlj111111/rll�llr Jrlll'lllrllljljlj,i � � i � i � ,llllrf l l � 1111 t r l l r l rfllll'1'111'1'1'1�1�1�I�I�rilili�rjrj'j'j'1'1'1'llf�l�l�l�l�lilili� �llllll Illllllllllllr Illlll �:,�;� l 1 ! 111111111,111 jljlj1111�1�1�1�111Illllll�l�l�l�l�l�flll�lllfj'jll l � � � � ; ; ' ,!,lllltlrl�l'1'l'11 � I l l l l 111 111 ,rlrlllrll,l,,/ll'��'1111 � .,. �Iflll111 . t 11llllll f111111'IIl'1'1'l'1'l 11 � l l l l l l l lrfj 1111 11111 , i : � : , JI1 I1111111111'I'lrlrlrt11111111Illlll ,,11 :,,� .1111r11lr/ 11111 ! ! 1111111tllltl1111'1'1'1rl'111'1'r'1'11 j!/ I l l l l I jlllllllrljljlllrflf : � 11 1 111 r 111'l'Ir 1 1 1 l' r l l' 11' r 11 �Illlrlllllllllllllllllllllllll/IIIIIII�I1111111I i �,1,l,',f ; Irlll'�l�l�llr'llllrl,',I,1'l'11f111I1�r�r�lllrl f1I,1,'111''I,II',1,�'�I�IIr' ; SOF t111111111111111 ] / 11 Il11111111111111111111 11111111'lltltlll, ���r��! �1111111111111111�1111111111111111111111111�11Irlllllllllllll i�t i'•'. �1111111 111111111111111' fillll/!1 ':,��ii Ifllllllllllllllll1111 111111111111111111111 I11111t11I111111111111111 1111111 1ill�Illllll 11111 IIIIIIIIIIIIIlllj1111llllllllfll I :,:, 1111111111t11111 "� I l l l l l '1'I'Ir''' Illlll Ill 1 Illlll � �111111111111111 1 ! 11 l 1111 flljljlj full � � i 11111111 l 11111111111j1jlj�l�l�l�t�llllllll�l�/�I�I�I�Illlljl jl,lll I t 11,11' l l :� ,,lrllll!'lllillll tI,,,Irlfllllllllll,,,rr11lf/l111! ��,:, rlll�lrl,J,I,I, l l ,,,,111 I 1 !Illlll 1,1,lililililrlrjrjllll'1'1'lrlll�l�lililililillll jl jllllll'I'lllll�l�lilili �' ; `; I�I�IIIIrIII,I, jlllllllf l 111111 111111111111'l'1'/'1'111'I�I�Ijljljllllll�l�'�'j'1'1'1'Itl'I�f�ljljljllllll�l � � i � i r11I1lllll�l11111111 ! 1 r r 1111111111111I11111111'1'1,1�1�11111111�,�,�1�,111111111'1,1'I�I�II/tllll�l�l�l�llll j� i i f111111,111'11111tI11111f11t1,I11,IlI IIIIIII111111t1111f11r11111111I111111 rlflll11lllrl,,,,1r111111111 11111 /11lllll,/,/il � � �!; ll 1 11 I11111111'J'llllrlll llllr l ��' ,f11r fllllll�lrl'11111111 , r t t, l l r llllrl'1'1'1'1'Irl�l�l�l�rililil�jlj'j'�'1'1'1'Ir1�1�1�1�lilililijljlj1�t111 ��; `• i rl�lll/11I1111 111111111111111111I11'llflllfylllll�iiiilllllllllll��iiilllllll,l 1 11111111"rrr1111�����r"'rll,'1'111 ' I ;i. 1 jljllll l l l l l l l l l _ 1111 111 lllllllllllililllllllllrl1111� t111r 11 11t11 i:i: lllllflll flll'1'll�l�l'1 Jl'l�l�l�t111,111� I�I,I11,Ir11�1't�l'1'l�l�ll,11111� f�1,111,11�11111J1't�t , i 0 0 a W 9 LEGEND s MW-5J MONITORING WELL CSA"-1 COMPREHENSIVE SITE ASSESSMENT MONITORING WELL .CSA--SB' COMPREHENSIVE SITE ASSESSMENT SOIL BORING 9MW-4 STORM SEWER LINE TM)CK SCALES DRAIN LINE DIESEL FUEL DISPENSER LINE LIMITED SITE ASSESSMENT SOIL BORING (2007) [APPROXIMATE LOCATION] CSA-SB9 CSA-S88 1- 2' CSA-S81 u Compound Result B = 0.910 I x = 5.54 csA-SBB � i CSA-SF17 � CSA-SB11 3 ■CSA-SB12 f _ CSA-SB13 CSA-SB6 CSAMW-3; CSAI(W-4 CSA-S85 CSA-SO14 r csA-sees LCSA-SB?6 CSA-SB4 f csA-5817 cSA-sB3 � f s -- TRUCK DIESEL FUELING DISPENSM AND CANOPY CSA-SB17 2-3 Compound Result B = 0.047,1 N = 7.3 2-Mn 17 -4,18 R 11,040 M Ar 2,220 I CSA-SB2 3-4 CSA-5B2 csA-sB1B �; CSA-SB18 1-2 am nd Result ound Result C9 -(72 k 61.43 I CSA-Se19 = 3.2 CSA-SB1 Al 9 CSAIM-1 f,MH 4-OW-2 CSA-SB18 5 6 Result nMn 1.2 4.6 A-� WELL 10 DEPTH compoun B = Benzene x = Xylenes IN = Naphthalene 2---Mn 2—Meth na hthalene -L18 Al C9—C18 Ali hatics -M k C9—C22 Aromatics ALL RESULTS MEASURED IN MILLIGRAMS PER KILOGRAMS (mg/kg) ONLY RESULTS EXCEEDING THE MSCCS ARE SHOWN 40' 0 40' SCALE IN FEET i I GRASS Cn CSANW-3 95.09 CSA-5� l DDMW-3 'f 93.45 CSA-SEI4 CSA-m 1 1 CSA-SBs ■I �]tw—fib �� �9 �89.19 _sra+I- TRUCK DIESEL FUEUNG DISPENSERS AND dWOPY CSA-SBII LCSA-S912 CSA-5813 ISCSAMW--4 95.53 CSA--SBI4 iA-San CSA-SB19 f' LEGEND s MW-5 MONITORING WELL CSAMW-1 COMPREHENSIVE SITE ASSESSMENT S MONITORING WELL ■C5A-SBf COMPREHENSkVE SITE ASSESSMENT SOIL BORING (MARCH 2O09) STORM SEWER LINE DRAIN LINE DIESEL FUEL DISPENSER LINE LIMITED SITE ASSESSMENT SOIL BORING (2007) [APPROXIMATE LOCATION] 85.68 GROUNDWATER ELEVATION IN FEET GROUNDWATER ELEVATION CONTOUR IN FEET • ELEVATION NOT USED IN CONTOURING 4 ' 0 Q. SCALE IN FEET LEGEND SMW-5 ,MONITORING WELL SCSAMW-1 COMPREHENSIVE SITE ASSESSMENT MONITORING WELL �� ■CSA-S81 COMPREHENSIVE SITE ASSESSMENT SOIL BORING (MARCH 2OG9) 9MW-4 STORM SEWER LINE 92.79 TRUCK SCALES DRAIN LINE DIESEL FUEL DISPENSER LINE . LIMITED SITE ASSESSMENT SOIL BORING (2007) (APPROXIMATE LOCATION] 95.78 GROUNDWATER ELEVATION IN FEET o �95 GROUNDWATER ELEVATION CONTOUR csA_s89 r IN FEET (DASHED WHERE INFERRED) INTERPRETED GROUNDWATER FLOW DIRECTION CSA-SB10 TRUCK MESEi FUMUNG DWENSUM AND CANOPY 1 k ACSA-sa11 CSA -Se7 �1 i • ACSA-SB12 CSA-SB13 92 CSA-sae 1 C5AMW-4 C$AMW-3 + 95.78 95.21 CSA-SR14 CSA-Sa1S — 89-73 CSA-SO16 — GSA 1 I f CySA-SO17 4 O 40' ' 1 - scmz IN FEET sale �► _ CSA-SB2 r CSA-Sat TRAVELCENTERS OF AMERICA r- �..._ - �- 1141 NC HIGHWAY fit, WHITSETT. NC f ocsAmw-1 94 a � Y ' 53 GROUNDWATER CONTOUR MAP j 85.17 o, t , f `0� MAY 28, 2009 i GMW-15 cn c ,1m Bt71 co Iv6 "° 01-ISM-04-7884-M co uH Me "O' 7880-: 02.dwg t LEGEND &MW-5 MONITORING WELL 9CSAMW-1 MONITOR E WELL SITE ASSESSMENT .CSA-SB1 COMPREHENSIVE SITE ASSESSMENT SOIL BORING B-4 STORM SEWER LINE -MUCK SCALES DRAIN LINE DIESEL FUEL DISPENSER LINE LIMITED SITE ASSESSMENT SOIL BORING (2007) [APPROXIMATE LOCATION] I � CSA-S89 &csA-se,o 4 � 4 l - CSA-sea CSA-SB7 ACSA-SB11 W-3 Result �CSA-selx 70 y E24182❑ CSA-SB6 1,300 CSAMW , 7 csA-sets CSAU -4 TRUCK DIESEL FUELING WENSERS AND CANOPY EC5AIMW-4 om ound Result B h f = 1 2 CSA-SB14 CSA-SB5 CSA-S81s DD�[1I—� 9' = �� y- -- NS 1 CSA-SB16 CSA-SB4 CSA-S817 CSA-sea A CSA-S81a ' CSA-SB1f49 A4 9 CSAIEW-2 tauac *CSA-mw-1 — GARAGE CSAMW-1 CSAMW-2 _ � �1[1I-15 om ound Result om aund Result r' ND Bbf = 2 Bbf= 2 WELL. ID om ound 6 b f = Benxv h fluoranthene 2-Mn 2-Math na htholene -@ k= Cg-C22 Aromatics -0 k = C11-C22 Aromatics ND NON -DETECT OR BELOW THE 2L STANDARDS NS NOT SAMPLED; LIQUID PHASE HYDROCARBON (I,PH) PRESENT AT TIME OF SAMPLING ALL RESULTS MEASURED IN MICROGRAMS PER LITER (pg/L) NOTES: 1. ONLY RESULTS EXCEEDING THE 2L STANDARDS ARE SHOWN. 2. DUPLICATE GROUNDWATER SAMPLE OF CSAMW-1 INDICATES NO DETECTION OF BEN20(B)FLUORANTHENE 4 ' 0 40' SCALE IN PEEP XWA NCDENR North Carolina Department of Environment and Natural Resources Division Oi Water Quality Beverly -aver Perdue I.-oleen H. Suiltns :;overno` Director February 10, 20 11 Peter Ward, Senior Vice President of Construction TA Operating Corporation 24601 Center Ridge Road Westlake. Ohio 44145 Ref; Issuance of Injection Permit M'10400164 TravelCenters of America - Greensboro Travel Center Whitsett. Guilford County. North Carolina, Dear Mr. Ward: Dee Freeman Secretan In accordance with the application and supporting data received on November 17, 2010, we are forwarding permit number W10400164. This permit is to inject Regenisis Oxygen Releasing Compound (magnesium peroxide) to remediate groundwater contaminated with diesel fuel at the facility referenced above. This permit shall be effective from the date of issuance until January 31, 2013, and shall be subject to the conditions and limitations stated therein, including the requirement to submit a final project evaluation as stated in PART VII - MONITORING AND REPORTING REQUIREMENTS. Please note that some of the monitoring requirements have changed from your application. Please read the entire permit to ensure that you are aware of all compliance requirements of the permit. You will need to notify this office by telephone 48 hours prior to initiation of operation of the facility. in order to continue uninterrupted legal use of the injection facility for the stated purpose, you must submit an application to renew the permit 120 days prior to its expiration date. Please contact me at (919) 715-6162 or david.goodrichCamcdetingov if you have any questions about your permit. }}Best Regards, David L. Goodrich Hydrogeologist II cc: Sherry Knight. Winston-Salem Regional Office Kent Littlefield, Benham Companies. LLC — SAIC. 631 tl Allentown Boulevard, Hatrisbu gg. PA 17112 Mindy Lepard. Incident Manager. Guilford County Environmental Health Department. 400 West Market Street, Suite 300. Greensboro. NC 27401 W10400164 Permit File I WFER PROT=710N SECTON 1635 Mail Service ::enter, Ralergrs, Noun Carolina 27,599.1636 Lowian. 2"28 Capital Boulevard, Raleigh. NoMh Camana27S4 pnome 91G-'33.32?1 1 FAX t 919.715-058£ FAX 2 9*-715-GM3' :Otvr,=_r krvice interne wwn ncwa ual .o uuai 'j=rrtjrw gins aiaE_ iwn ,r zmr9,sv►, Cinv NorthCarohna F. /wl'r rllp &r ANr.:.�.CC...� HCDGNR Nolh 1. al ohna Depart1T ent of Environment ar d Natural ResnurGu5 DIvislorl ,f VVate- Qualliv aevei I =ave- Perctic L O'r,`E1l h sullim Savcmc- Drector December 9. 2010 Peter ❑V and TA Operating Corporation 24601 Center Ridge Rd. VA ",�tlake. OH 44145 Subjects Acknowledgement of Application No. W/0400164 Travel Centers of America -Greensboro Travel t_ ,onter Infection In situ Groundwater Remediation Well 01) Guilford Dear Mr. Ward: Lr,.0 : r-2-a The Aquifer Protection Section of the Division of Water Quality (Division) acknowledges receipt of your pen -nit application and supporting, materials on November 12. 2010. This application package has been assigned the number listed above and will be reviewed by David Goodrich. The reviewer will perform a detailed review and contact you with a request for additional information if necessary. To ensure the maximum efficiency in processing permit applications. the Division requests your assistance in providing a timely and complete response to any additional information requests. Piease be aware that the Division's Regional Office. copied below, must provide recommendations prior to final action by the Division. Please also note at this time. processing permit applications can take as long as 60 - 90 days after receipt ❑ra complete application. If you have any questions, please contact David Goodrich at 910-715-6162, or via e-mail at dat,id.gnodrich(u'ncdenr.grn If the reviewer is unavailable, you may leave a message. and they will respond promptly. Also note that the Division has reorganized. To review our new organizational than, go to httn:. 'IC"o,enr.stase.nc.us! docu mcnis, d \v q— rhsn.pdf: PLEASE REFER TO THE ABOVE APPLICATION NUMBER WHFN MAKING INQUIRIES ON THIS PROJECT. Sinc Iv. For Debra J. WIts Supervisor cc- Winston-Salem Regional Office. Aquifer Protection Section Kent Littlefield (Benham Companies. LLC — SAIC. 6310 Allentown Bouievard. Harrisburg. PA 1711=`) Permit Application File W !'04001 t,4 . , _.sti .��I ? , _ . _ .�'-I�:.. I�'. ..'.::•inn-.. � •tk an SAIC company November 11. 2010 Mr. Thomas Slusser, L.G. Underground Injection Control Program Manager North Carolina DENR-DWQ 1636 Mail Service Center Raleigh, NC 27699-1636 RE: Application for Permit to Use a Well for Injection Greensboro Travel Center 1101 NC 61, Whitsett, Guilford County, NC Incident Number 30813 Dear Mr. Slusser: n On behalf of TravelCenters of America (TA), Benham Companies, LLC submits the attached Corrective Action Plan (CAP) for remediating a diesel fuel release and the Permit to Construct and/or Use a Well(s) for Injection {the Application} at the captioned property. The CAP, prepared for and approved by the NCDENR Division of Waste Management UST Section, proposes Oxygen Releasing Compound (ORC) in two groundwater monitoring wells to enhance biodegradation of petroleum hydrocarbons in groundwater. The Application requests permission from the North Carolina Department of Environment and Natural Resources (NCDENR) to place ORC in the groundwater of two wells. These submittals are in response to your letter of November 3, 2010 requesting information addressing Section V of the Application. The geologic information requested in Section V of the Application are contained by the relevant passages in the CAP as cited on the Application We trust submittals will meet your approval. Please respond to the undersigned with any questions or your approval. Respectfully, BENHAM COMPANIES, LLC .�T Kent V. LittIefield, L. G. 6310 Allentown BoulevardlHarrisburg, PA 171121Phone 717-901-8843/Fax 717-901-81031www. saic. com eBEIV HAM an 5AIC company October 25, 2010 U IC Program Aquifer Protection Section North Carolina DENR-DWQ 1636 Mail Service Center } Raleigh, NC 27699-1636 RE: Application for Permit to Use a Well for Injection Greensboro Travel Center 1101 NC 61, Whitsett, Guilford County, NC Incident Number 30813 To Whom It May Concern: On behalf of TravelCenters of America (TA), Benham Companies, LLC submits the attached Application for Permit to Construct and/or Use a Weil(s) for Injection at the captioned property. The purpose of this application is to obtain permission from the North Carolina Department of Environment and Natural Resources (NCDENR) to place Oxygen Releasing Compound (ORC) in two groundwater monitoring wells to enhance biodegradation of petroleum hydrocarbons in groundwater. ORC is powdered magnesium peroxide in a porous fabric sock manufactured by Regenesis. About 15 pounds will be placed in each of two wells to be treated. On immersion in water ORC gives off oxygen in a slow bubbling action over about one year. The material increases dissolved oxygen in soil and groundwater and promotes aerobic bacteria metabolism of the hydrocarbon residuals. Bioremediation enhanced with ORC was recommended in the May 28, 2010 Corrective Action Plan (CAP) for Incident Number 30813. The CAP was prepared for and approved by the NCDENR Division of Waste Management UST Section on July 12, 2010, We trust this explanation and UIC application will meet your approval and are prepared to implement it upon your direction. Please respond to the undersigned with any questions or your approval. Respectfully, BENHAM COMPANIES, LLC rt Kent V. Littlefield, L. G. t cc: Cindy H. Rintoul, L. G., NCDENR, Division of Waste Management UST Section Emily L. Gloeckler, P.G., TravelCenters of America 63 10 Allentown BoulevardlHamsburg, PA 171121Phone 717901-88431Fax 717-901-81031www.salc.com AVA NCDENR North Carolina Department of Environment and Natural Resources Beverty Eaves Perdue. Govemor Civision of Waste Management Dee Freeman, Secretary UST Seal Dexter R Matthews. Director TravelCentcrs of America Attn: Mr. James Schenker 24601 Center Ridge Road, Suite 200 Cleveland, OH 44145 July 12, 2010 Re: Notice of Regulatory Requirements 15A NCAC 211-0407(b) Risk -based Assessment and Corrective Action For Peimlcum Underground Storage Tanks TravelCenters of America-H 1101 NC 61, Whitsett Guilford County Risk Classification: High Ranking: 190D Dear Mr. Schenker. The Corrective Action Plan (CAA) received on June 3, 2010 has been reviewed by the UST Section, Winston-Salem Regional Office. The plan and the schedule are hereby approved, with the following modifications: groundwater samples are to be analyzed by EPA methods 602 and 625 annually and by MADEP EY11 and VP1l methods semiannually. If EPA methods 602 or 625 detect contaminants atmve the 2L standards, that analysis method will be required during serniarrnual sampling. Failure to implement the plan and schedule in the manner and time specified may result in the assessment of civil penalties anchor the use of other enforcement mechanisms. If coverage under the Leaking Petroleum Underground Storage Tank Cleanup Funds (,Funds) tsar been previously granted or is anticipated, failure to implement the plan and schedule in the manner and time specified in the CAP may result in potential loss of coverage. Failure to practice cost effective implementation of the plan, including soil and groundwater monitoring and operation and maintenance of any rear celial system(s) until the dale on which cleanup goals arc met, will aJso jeopardise reimbursement of reasonable and accessary costs from the Funds. Effective October 1, 2004, the Department requires that all work following the submittal of the Limited Site Assessment Report (T?tle 15A NCAC 2L .0405) be preapproved if State Trust Fund •rimbursement is anticipated. To comply with this requirement, a completed PreapprovsllCiaim Au[horiration For n, encompassing the required remedial activities, must be received in this office within 14 days of the date of this letter. Upon completion of the preapproved activities, you should submit your claim promptly. Reimbursement funds are budgeted based on completed preapprovals, but lengthy delays in reimbursement can occur if claims are not submitted immediately following wont completion. An EgtW GPPWur.dy e A ftrnaM Aden EI olWer i.;O % Rft- rL o I IO % Post f.cnsu"-r PSpW If you have any questions regarding trust fund eligibility or reimbursement Crorn the Commercial or Noncommercial Leaking Petroleum Underground Storage Tank Cleanup Funds, please contact the UST Section Trost Fund Branch at (919) 733-9486. if you have any questions regarding the actions that must be taken or the rules mentioned in this letter, please contact Mundy Lepard at (336) 641-5557 or the address listed below for Guilford County Environmental Health. Sincerely, Cindy . Rirnoul, L.G. [regional Supervisor '.'Vinton -Salem Regional Office UST Regional Offices Asheville (ARt7) - 2090 US Highway 70. Swannanoa, NC 28778 (978) 296450 Fayetteville (FAY) - 225 Green Street, State 714, Systel Building, Fayetteville, NC 28301 (910) 433-3300 Mooresville (Pat 0R) -- bl U East Ce tter Avenue Suite 301, Mooresville, NC 281 15 (704) 663-16" Raleigh (RRO) - 1628 Mail Service Center, Raleigh. NC 27699 (919) 7914290 Washington (WAS) - 943 Washington Square Mali, Washington, NC 27889 (252) 9464481 Wilmlogtoo (WIL) - 127 Cardinal Drive Extension, Wilmington, NC 28405 (910) 7%-7215 Winston-Salern (WS) 58S Waughtown Street, Winston-Salem, NC 27107 (336) 771-5000 Gutiford County E o virea moats I Realth, 400 West Market Street, Suite 300. GreR]Sboro, NC 27401, (336) 641-3771 FTP CAP;tppra%ai NOR0209.dot Ar,Epual OPPAL PIV 1 ARr nnft A;,ntpn Emooyer 50'4 aet)tied 10 w Post t;onJww PW _A[a r AFER PROTECTION SECTION_ APPLICATION REVIEW REQUEST FORM Date: December 28, 2010 To; ❑ Landon Davidson, ARO-APS ❑ Art Barnhardt, FRO-APS ❑ Andrew Pitner, MRO-APS ❑ Jay Zimmerman, RRO-APS ❑ David May, WaRO-APS ❑ Charlie Stehman, W iRO-APS X Sherri Knight, WSRO-APS From: David Goodrich, Land Application Unit Telephone: (919) 715-616? Fax. 919 715-6048 E Marl: david.g_oodrichAncdenr. oo A. Permit Number: WI0400164 B. Owner: TA Operating Comoration C. Facility/Operation: Travel Centers of America — Greensboro Travel Center X Proposed ❑ Existing X Facility X Operation D. Application: 1. Permit Type: ❑ AnimaI ❑ Surface Irrigation ❑ Reuse ❑ H-R Infiltration ❑ Recycle ❑ I/E Lagoon X GW Remediation: 5I Injection Wells ❑ UIC - (5A7) open loop geothermal For Residuals: ❑ Land App. ❑ D&M ❑ Surface Disposal ❑ 503 ❑ 503 Exempt ❑ Animal 1. Project Type: X New ❑ Major Mod. ❑ Minor Mod. II Renewal ❑ Renewal w/ Mod. E. Comments/Other Information: ❑ I would like to accompany you on a site visit. Statutory Date: Attached. you will find all information submitted in support of the above -referenced application for your review, comment, and/or action. Within 30 calendar days, please take the following actions: X Return a Completed APSARR Form. - Please comment ❑ Attach Well Construction Data Sheet. ❑ Attach Attachment B for Certification by the LAPCU. ❑ Issue an Attachment 13 Certification from the RO.* Remember that you will be responsible for coordinating site visits and reviews, as well as additional information requests with other RO-APS representatives in order to prepare a complete Attachment B for certification. Refer to the RPP SOP for additional detail. When you receive this request form, please write your name and dates in the spaces below, snake a copy of this sheet, and return it to the appropriate Central Office -Aquifer Protection Section contact person listed above. RO-APS Reviewer: Date: FORM: APSARR 07/06 Page 1 of 1 AQUIFER PRrECTIQN REGIONAL STAFF REP0111, prat orrSedioRi JAN 11 2011 Date: January 21, 2411 County: Guilford To: Aquifer Protection Central Office Permittee: TA Operating Corp - Central Office Reviewer: David Goodrich Project Name: Travel Centers of America -Greensboro Regional Login No: Application No.: W]I0400164 L GENERAL INFORMATION 1. This application is (check all that apply): ® New ❑ Renewal ❑ Minor Modification ❑ Major Modification ❑ Modification ❑ Surface Irrigation ❑ Reuse ❑ Recycle ❑ High Rate Infiltration ❑ Evaporation/Infiltration Lagoon ❑ Land Application of Residuals ❑ Attachment B included ❑ 503 regulated ❑ 503 exempt ❑ Distribution of Residuals ❑ Surface Disposal ❑ Closed -loop Groundwater Remediation ® Other Injection Wells (including in situ remediation) Was a site visit conducted in order to prepare this report? ® Yes or ❑ No. a. Date of site visit: January 21, 2011 b. Person contacted and contact information: Kent Littlefield, consultant, 717-901-8843 and Steve Sutton, the store manager. c. Site visit conducted by: Shuying Wang, WSRO d. Inspection Report Attached: ❑ Yes or ® No. 2. Is the following information entered into the BIMS record for this application convect? ❑ Yes or ® No. If no, please complete the following or indicate that it is correct on the current application. For Treatment Facilities: a. Location: b. Driving Directions: c. USGS Quadrangle Map name and number: d. Latitude: Longitude: e. Regulated Activities 1 Type of Wastes (e.g., subdivision, food processing, municipal wastewater): For Disposal and Infection Sites: (If muitiule sites either indicate which sites the information applies to, copy and -paste_ a new section into the document for each site or attach additional pages for each site a. Location: 1101 NC Hwy 61, Whitsett, NC 27377, Guilford b, Driving Directions: From WSRO. take I-40 east, through Greensboro for total of about 40 miles., exit at exit# I 38/Gibsonville/Whitsett toward Gibsonville for 0.3 miles the site will be on the right c. USGS Quadrangle Map name and number: Gibsonville d. Latitude: 33 03 51 N Longitude: 79 33 50 W IL NEW AND MAJOR MODIFICATION_ A_ PPLICATIONS (this section not needed for renewals_ or minor modifications, skip to next section Description Of Waste(S) And Facilities 1, Please attach completed rating sheet. Facility Classification: FORM: 20110121- W 10400 t 64 AQUIFER PRu fECTION REGIONAL STAFF REPORT IV INJECTION WELL PERMIT APPLICATIONS (Complete these two sections for all systems that use injection wells, including closed -loop groundwater remediation effluent injection wells, in situ remediation injection wells, and heat pump injection wells.) Desciription Of Well{SAnd Facilities — New, Renews! And Modification 1. Type of injection system: ❑ Heatinglcooling water return flow (5A7) ❑ Closed-Ioop heat pump system (5QMl5QW) ® In situ remediation (5I) ❑ Closed-Ioop groundwater remediation effluent injection (5LP Non -Discharge") ❑ Other (Specify: 2. Does system use same well for water source and injection? ❑ Yes ® No 3, Are there any potential pollution sources that may affect injection? ® Yes ❑ No What is/are the pollution source(s)? Onsite diesel and gasoline underground storage tanks. piping. and disRensers What is the distance of the injection well(s) from the pollution source(s)? at the source area 4. What is the minimum distance of proposed injection wells from the property boundary? 100 -150 feet 5. Quality of drainage at site: ❑ Good ® Adequate ❑ Poor 6. Flooding potential of site: ® Low ❑ Moderate ❑ High 7. For groundwater remediation systems, is the proposed andlor existing groundwater monitoring program (number of wells, frequency of monitoring, monitoring parameters, etc.) adequate? ❑ Yes ® No. Attach map of existing monitoring well network if applicable. If No, explain and recommend any changes to the groundwater monitoring program: The sampling plan proposed in the CAP attached with the application does not meet the need of the Aquifer Protections Section. To monitor whether the injection will have any adverse impact on the groundwater quality and the migration of the plume, and to monitor reactions between injectant and contaminants, field parameters, including pH, temperature, specific conductance, and dissolved oxygen, in CSAMW-3, CSAMW-4 and DDMW-2 should be measured before injection, weekly for the first month and then monthly for the first three months after injection. Samples for lab analytical parameters should be collected one and three months, respectively, after the injection. A complete report summarizing injection and monitoring activities and results should be submitted to the Aquifer Protection Section Winston-Salem Regional Office within 60 days after all samples are collected. (If central office needs one, request another cony)• 8. Does the map presented represent the actual site (property lines, wells, surface drainage)? ® Yes or ❑ No. If no or no map, please attach a sketch of the site. Show property boundaries, buildings, wells, potential pollution sources, roads, approximate scale, and north arrow. FORM: 20110121-W 10400164 AQUIFER PRu fECTION REGIONAL STAFF REPORT V. EVAL UATIONAND RECOMMENDATIONS 1. Provide any additional narrative regarding your review of the app] ication:. 2. Attach Well Construction Data Sheet - if needed information is available 3. Do you foresee any problems with issuance/renewal of this permit? ❑ Yes E No. 4. List any items that you would like APS Central Office to obtain through an additional information request. Make sure that you provide a reason for each item: Item Reason 5. List specific Permit conditions that you recommend to be removed from the permit when issued. Make sure that you provide a reason for each condition: Condition Reason 6. List specific special conditions or compliance schedules that you recommend to be included in the permit when issued, Make sure that you provide a reason for each special condition: Condition Reason Look at Section IV, item 7 See Section IV Item 7. However, if the Central Office does not think it is necessary to monitor the process of reactions between injectant and contaminants, I am not going to argue. 7. Recommendation: ❑ Hold, pending receipt and review of additional information by regional office; ❑ Hold, pending review of draft permit by regional office; ❑ Issue upon receipt of needed additional information; Issue; ❑ Deny. If deny, please state reasons, 8. Signature of report preparers): Signature of APS regional super Date: + z I l FORM: 20110121-WI0400164 6 AQUIFER PRu i'ECTION REGIONAL STAFF REPORT ADDITIONAL REGIONAL STAFF RE VIEW ITEMS The site is an outsized gas station. Its large part is specifically for huge trucks. The contamination area is right located in middle of a very long _pumping island. Traffic is so busy at the site and the area to be treated with infection of ORC. Therefore. safety may be an issue that needs to be addressed before and during the infection. FORM: 201 1012 l - W ] U4QD 1 b4 North Carolina Department of Health and Human Services Division of Public Health • Epidemiology Section Occupational & Environmental Epidemiology Branch 1912 Mail Service Center . Raleigh, North Carolina 27699-191? Tel 919-707-59W • Fax 919-870-4810 l Iichad F. Easley. Governor Carmen Hooker Odom, Secretanp August S, 2005 MEMORANDUM C cr► _ TO: Evan Kane C) _ Underground injection Control Program o� Aquifer Protection Section —4 FROM: Luanne K. Williams, Pharm.D., ToxicologistA '�� Medical Evaluation and Risk Assessment Unit =1 G- Occupational and Environmental Epidemiology Branch rn co n- North Carolina Department of Health and Human Services SUBJECT: Use of a Nan -Biological Product Oxygen Release Compound —Advanced (ORC- AdvancedTm) by Regenesis to Enhance Biodegradation of Soil Contaminated with Petroleum Compounds at LC Industries in Durham, North Carolina i am writing in response to a request for a health risk evaluation regarding the use of use of a non -biological product Oxygen Release Compound — Advanced ) by Regenesis to enhance biodegradation of soil contaminated with petroleum compounds at LC Industries in Durham, North Carolina. Based upon my review of the information submitted, I offer the following health risk evaluation: PRECAUTIONS DURING APPLICATION 1. Some effects or hazards reported to be associated with the chemicals proposed for use are a: follows: Exposure can cause irritation and burns to the skin, eyes, nose and throat (Medical Management, Micromedex TOMES Plus System CD-ROM Database, Volume 65, 2005) 2. if the products are released into the environment in a way that could result in a suspension of fine solid or liquid particles (e.g., grinding, biending, vigorous shaking or mixing), then it is imperative that proper personal protective equipment be used. The application proem should be reviewed by an industrial hygienist to ensure that the most appropriate personal protective equipment is used. COI_omtLon: 5505 Six forks Road. ?n+ 19oor. Rtmim D1 0 Raleigh, N.0 '?.76M An Ec?ual Opportunity Employer Persons working with this product should at least wear goggles or a face shield, gloves, and protective clothing. Face and body protection should be Used for anticipated splashes or sprays. Again, consult with an industrial hygienist to ensure proper protection. 4. Eating, drinking, smoking, handling contact lenses, and applying cosmetics should never be permitted in the application area during or immediately following application. Safety controls should be in place to ensure that the check valve and the pressure delivery systems are working properly. 5. The Material Safety Data Sheets should be followed to prevent adverse reactions and injuries. 6. Access to the area of application should be limited to the workers applying the product. In order to minimize exposure to unprotected individuals, measures should be taken to prevent access to the area of application. 7. According to the information submitted, the area is served by a public water supply. However, a domestic water supply well is located approximately 2,000 feet from the site along Slater Road. Also, an unnarned small creek is located approximately 1,000 feet south of the site. The creek drains into an unnamed pond north of Airport Road. Efforts should be made to prevent contamination of existing or future wells and nearby surface waters that may be located near the application area. Please do not hesitate to call me if you have any questions at (919) 707-5912. cc: Mr. Rick Stalling, LC Industries, 18 10 E. Main Street, Durham, NC 27703 Mr. Ed Mackey, Weston Solutions Inc., 4917 Waters Edge, Raleigh, NC 27606 Mr. Michael Ranck, NCDENR, Aquifer Protection Section, 1636 Mail Service Center, Raleigh, NC 27699-1636 Mr. Gene Burke, Vironex, Inc., 530 McCormick Drive Suite A, Glen Burnie, MD 21061 Mr. Everett Poore, Nortel Networks, 3001 East Chapel Hill, RT P, NC 27705 RECEIVED I0ENRJ DMI 1l+FFR pIG!iTi 7"10'J fiFMION AQ OCT 12 ?011 From Science to Solutions— SENT VIA FEaEx October 5, 2011 Ms. Mindy Lepard Guilford County Environmental Health 1203 Maple Street Greensboro, NC 27405 Re: Groundwater Monitoring Report 1101 NC 61, Whitsett, Guilford County, NC Greensboro Travel Center Incident No. 30318 Injection Permit W10400164 Dear Ms. Lepard: On behalf of TravelCenters of America (TA), SAIC Energy, Environment, & Infrastructure, LLC (SAIC) is submitting this Groundwater Monitoring Report to the North Carolina Department of Environment and Natural Resources (DENR) for Corrective Action Plan (CAP) implementation and Oxygen Releasing Compound (ORC) installation at the diesel dispenser pad of above - referenced facility (Figure 1). The July 12, 2010 CAP approved ORC installation in wells CSAMW-3 and DDMW-2 and required semi-annual sampling of the wells around the facility diesel dispenser pad (CSAMW-1, CSAMW-2, CSAMW-3, CSAMW-4, and DDMW-2) until the groundwater meets DENR's 2L Standards. Semi-annual sampling was first conducted in October 2010. The second sampling was delayed from April 2011 to July 2011, with DENR permission, to order that an underground injection control (UIC) permit be issued for the ORC and so the ORC affects could be evaluated. This report covers the period through July 14, 2011. METHODS AND ❑BSERVATIONS After receipt of the UIC permit, SAIL installed socks containing approximately 15 pounds ORC each in wells CSAMW-3 and DDMW-2 on April 14, 2011. SAIL measured water levels (Table 1) and groundwater field parameters, pH, temperature, oxidation reduction potential (ORP), dissolved oxygen (DO), and specific conductance (Table 2), in the dispenser pad wells prior to ORC installation. SAIC measured water levels and field parameters again June 11, 2011 and July 14, 2011. On July 14, 2011, SAIL gauged the monitoring wells at the site, including those for the diesel dispenser pad prior to sampling. No liquid -phase hydrocarbon (LPH) was measured or observed on the groundwater in any monitoring well. The hydrologic gradient was south, consistent with that reported previously (Figure 2). SAIL Energy, Environment, & Infrastructure, LLC 6310 Allentown Boulevard I Harrisburg. PA 17112 1 tel: 7'17, 901, 8100 I www.saic.com r Ms- Mindy Lepard - 2 - October 5, 2011 Five monitoring wells (CSAMW-1, CSAMW-2, CSAMW-3, CSAMW-4, and DDMW-2) were purged and sampled in accordance with ASTM Method D-4448. Groundwater samples were collected, placed in laboratory -provided glassware, and preserved according to ASTM Method D-3694. They were submitted to Accutest Laboratory for analysis of Massachusetts Department of Environmental Protection (MADEP) volatile petroleum hydrocarbons (VPH) and extractable petroleum hydrocarbons (EPH) in accordance with EPA publication SW-846. Analytical results are compared to historical results and 2L Standards on Table 3. Copies of laboratory reports are included as Attachment A. FINDINGS The July 14, 2011 groundwater sample results at the diesel dispenser pad indicated a significant reduction in hydrocarbon concentrations compared to the historical groundwater sampling results. The groundwater at monitoring wells was non -detect for C9-C18 Aliphatics (adjusted) and C9-C22 Aromatics (adjusted) at all wells except DDMW-2. Groundwater from DDMW-2 was less than the 2L Standards for C9-C 18 Aliphatics (adjusted), but exceeded the 2L Standards for C9-C22 Aromatics (adjusted). The introduction of ORC into DDMW-2 and CSAMW-3 boosted their DO concentrations by 2.1 milligrams per liter (mglL) and 8.5 mglL, respectively, over previous DO measurements. This higher DO was available to support biodegradation of the hydrocarbons. Groundwater migration rates are slow, and the downgradient wells indicate compliance with 2L Standards. These conditions and the fact that surrounding receptors are hundreds of feet away and topographically higher than the site indicates no potential of impact to these wells from the site. Based on the conditions measured, which document a decreasing impact at groundwater at the diesel dispenser pad, lead SAIL and TA to recommend continued semi-annual monitoring for Incident No. 30318. The next scheduled semi-annual sampling will be in October, 2011, Please contact the undersigned at (717) 901-8843 should you have any questions or concerns. Respectfully submitted, SAIC ENERGY, ENVIRONMENT, & INFRASTRUCTURE. UC.AL ... 829 4 Kent V. Littlefield, P.G.LOG Enclosures se f••y Lill cc: Emily Gloeckler, P.G. (TravelCenters of America} 14181Je4i„r. Cindy H. Rintoul, L.G. (NCDENR) David L. Goodrich, (NCDENR-Aquifer Protection Section) FiECFiVrO I t_.;:PIR 1 OWU AQUfF�R pPnT«T3�h! ScCT34ll OCT 19 2011 SRtC Energy, Environment, & Infrastructure, LLC FIGURES SAIC Enemy, Environment, & Infrastructure, LLC f 4F � , `. I� r r Diesel Di L15T System 1-1 I Note: The base map is from the U5G5 Gibsonville 7.5 min. quadrangle Legend - - - Surface Water Property Boundary Onsite Buildings N r Y",,_ nser Pad 0 250 500 1.000 Feet TRAVELCENTERS OF AMERICA GREENSBORO FACILITY 1101 N(L HIGHWAY 61, %VHITSLTT, NC Site Location Map Jr,un KBL oh"ked figure no- d— ° ] (I ] u dxe Jazr nh nn f Ic nn. ti\-Y.Y\\ C\lC\ti!f-1 Y� K:1G15_Data1TMVVhitsett, Nc1Pro}ects130813 - CAPT i g 1 -Topornap. rnxd E"H" w yl[71-I6 1�GENI3 &UW-6 wwwamp. rni — - S CSAMW—1 I.airfmiE W sm ►WSS" WO "Wl wu Mft %cwf, , WE DO& V! OM cuts owuslo IM LAM SW l4RERElif SO4 83W IXO?) IAFMX&Olt MAIUY] 99.66 FELATNEGROUNDOvATEP ELErATOPI G ROU H DAATEF -MN TOU F =AF4 YATCS A.OJ USTEO, ii S--: IS ALIP RATCS JkDJU-TEO wlil IR Pm TABLES SAIL Energy. Environment, & Infrastructure, LLC TABLE Groundwater Elevation and Product Thickness TravelCenters of America 1101 NC Highway 61 Whitsett, Guilford County, North Carolina Facility 1.D.:0-0291S6 Incident dumber.: 30913 Well 1D hate Screened Interval (top of screen to bottom of screen b rest Depth to Water- Uncorrected [Feet] Free Product Thickness {feet) Depth to Water- Corrected Cap afCasing Elevation [feet) Groundwater 5urrace Elevation feet 3;18i2008 1 7.5 7,52 100-00 92A8 4/1/2009 0 • 0+ 100.00 > 100,00 MW-4 4/29/2009 5.03 5,03 100,00 94.97 5/29/2009 7.21 T21 100.00 92.79 9/1/2009 10.93 10.93 100,00 89.07 12/22/2009 0+ - 10.93 100.00 >100.00 3/27/2009 4-14 2.84 2,84 92,24 89.40 4/28/2009 3.05 3.05 9124 89.19 MW-15 5/28/2009 3,53 3,53 9124 88.71 9/1/2009 5.37 5.37 92.24 86.87 17/22/2009 1.83 1.83 92.24 90Al 3/24/2009 1 n- ;1 24.80 24.80 94.18 69.38 3/31/2009 7.72 7,72 94.18 86,46 4/1/2009 7.69 7.69 94,18 86A9 4/28/2009 K50 8.50 94.18 85.68 CSAMW-1 5/28/2009 9.01 9.01 94.18 85.17 9/1/2009 9.82 9.82 94.18 84.36 12122/2009 6.87 6A7 94,18 87.31 10/412010 IU3 1U3 94.18 83.95 116/2011 11.00 11.00 94,18 83.18 4/14/2011 6,81 6,81 94,18 87,37 3/31/2009 60--fY 1&05 18.05 97,75 79.70 4/28/2009 44.15 44.15 97.75 53.60 5/28/2009 3.22 3,22 97,75 94.53 CSAMW-2 9/1/2009 19.06 19.06 97.75 78.69 12/22/2009 15.70 15.70 97.75 82.05 10/4/2010 16.44 16,44 97,75 81.31 l/612011 17.65 17.65 97.75 80.10 -4/14/2011 1 L52 11.52 97.75 86,23 3/31/2009 10-25 5.48 5.48 98.39 92.91 4/1/2409 2.79 - 2.79 98.39 95.60 4/28/2009 3.30 -- 3.30 98,39 95.09 5/28/2009 3.18 -- 3,18 98,39 9511 CSAMW-3 9/1/2009 9.88 - 9.88 98.39 88.51 12/22/2009 3.05 - 105 98.39 95,34 10)4i2010 7.57 T57 98.39 90.82 1/6i2011 10.51 10.51 98.39 87.88 4/14/201 1 5,12 5.12 98,39 93.27 3/31i2009 65-75 53,10 53.10 99.09 45,99 4/28/2009 3.56 3.56 99.09 95.53 5/28/2009 3.31 3,31 99.09 95.78 CSAMW-4 9/1/2009 12/22/2009 13,37 9.97 13.37 9.97 99.09 99,09 85.72 89.12 10/4/2010 1174 1174 99,09 95,35 1/6/2011 16.56 16.56 99.09 82.53 4/14/2011 15.15 15,15 99,09 83.94 10/3/2006 15.28-29.65 16.94 16.94 I01.22 94.28 3/31/2009 4.29 0. U �1 4.33 97.78 93.45 4/28/2009 5.54 5.54 97,78 92.24 5/28/2009 8.05 8.05 97.78 89.73 DDMW-2 91112009 10,43 10.43 97,79 87.35 12/22/2009 4.28 4.28 9T78 93.50 10/4/2010 9,56 9,56 97.78 88.22 1/6/21011 10.64 10,64 97.78 87-I4 4/14/2011 6115 6.65 1 97.78 1 91A3 NOTES: 1) ft bgs-feet below grade surface 2) Top of casing elevations based on a arbitraury datum of 100 feet. 3) Top of casing elevations measured on March 31. 2009. 3) 0+ indicates the well began flowing after the compression cap was removed. Table 2 Groundwater Physical Parameters TravelCenters of America 1101 NC Highway 61 Whitsett, Guilford County, North Carolina Facility I.D.: 0-029186 Incident Number.: 30813 Location Date Temperature °C pH Conductivity Slcm D.D. mg/L Redos mV CSAMW-1 4/1/2009 18.2 6.43 0.751 3.09 -114 10/5/2010 21.3 6.86 0.610 2.95 -20 7/14/2011 20.5 6.64 0.597 1.79 NA CSAMW-2 4/1/2001 18.6 6.77 0.970 8.96 -239 1.01512010 19.5 693 1.100 1.86 -60 7/14/2011 20.2 6.69 1.280 2.66 NA CSAMW-3 4/112009 17.6 6.69 3.79 3.47 -64 10/5/2010 20.1 6.44 1.22 3.99 -37 4/14/2011 20.2 6.54 0.44 4.11 -253 6/18/201 I 22.5 9,12 0.50 7.21 NA 7/14/2011 20.6 7.16 1.45 12.62 NA CSAMW4 4/1/2009 18.7 7.27 0.903 6.84 -23 1015J2010 18.8 8.05 0.505 1.52 -170 7/14/2011 21.5 6.63 0.652 3.94 NA MW4 4/1/2009 16A 7.05 0.381 4.79 -138 MW-1 3/27/2009 17.4 6.44 0.594 5.09 -109 I)DMW-2 9/2/2009 19.6 6.16 0.92 3.51 -29 12/23/2009 16.9 6.30 0.432 NM -33 10/5/2010 19.6 6.60 0.624 12.05 -290 4/14/2011 17.99 6.54 1.05 1.73 -133 6/18/2011 22,77 6.14 0.091 6.37 NA 7/14/2011 20.63 6.95 1.01 3.87 NA Notes: 1. IC -degrees Celsuis 6. MW4 was a flowing well at time of sampling, 2. SJcm- per centimeter 7. All wells were purged by hand bailing 3. mg/L-milligrams per liter 8. Total Dissolved Solids [TDS] 4. mV-millivolts 9. D.O.-Dissolved Oxygen 5. ft-feet 10. NM -Not measured TABLE 3 Summary of Groundwater Sampling Results 7YavelCenters of America 1101 NC Highway 61 Whitsett, Guilford County, North Carolina Facility 1.D.: 0-029186 Incident Number.: 30813 Arial�rical Melhoc MADEP Volatile Petroleum Il drocarbons (VPI I) MADEP Extractable Petroluum Il drocarbons (EP11) C9-C22 Aromatics Adjusted C9-C18 Aliphaties Adjusted Contaminant ufConcern ( I. C5-C8 Aliphalies x) C9 C10 Aromatics c C'4-C 12 Ali liaties a) C 1 I-C.22 Aromatics (d) C 19-C36 Ali phatics C9-C 18 Aliphalies h Sample 1 D Dale Collected Source Area Incident Phase 4/1/2009 Diesel Dispemers CSA <9.7 ¢ 1.1 7.1 J 110 J <36 161 110,1 23 J CSAMW-1 10/5/2010 Diesel Dispensers CSA NA <2.9 NA <90 NA NA <92.9 NA 7/14/2011 Diesel Dispensers CSA <35 <35 <35 <130 <85 <67 <135 <67 4/1/2009 Diesel Dis nsers USA <9.7 < 1.1 19 J 130 J 49 J 8.7 J 130 J 28 J CSAMW-2 10/5/2010 Diesel Dispensers C :NA NA <2.9 NA r90 NA NA ¢92.9 NA 7/14/2011 Diesel Dispensers CSA <35 <35 <35 <87 <56 <44 r 122 <44 4/1/2009 Diesel Dispensers CSA 173 520 580 1,300 1,200 3,900 11820 3,960 CSAMW-3 I01512010 Diesel Dis nsers CSA NA 1 9.9 NA 680 NA NA 699 NA 7/14/2011 Diesel Dispensers (",A ; <35 <35 <87 <56 <44 <122 <44 CSAMW-4 4/1/2009 Diesel Dispensers CSA �9.7 <1 A <6,3 140 J 50 J <6.4 140 J <12 101512010 Diesel Dispensers CSA NA Q.9 NA 110 J NA NA l l0 J NA 7/14/2011 Diesel Dispensers CSA <35 <35 <35 <87 <56 <44 <122 <44 MW4 4/1/2009 Diesel Dispensers C5A <9,7 29 15 J 130 J <36 <6.4 159 J <6A MW-15 3/27/2009 Diesel Dispensers CSA <9.7 <1.1 <63 86 J <36 ¢6,4 86 J <12 10/3/2006 Diesel Dispensers LSA NR 530 880 8()0,000 1 000 6.400,000 806,530 6,400,530 9/2; 2009 Diesel Dispensers CSA <9.7 100 210 360 <36 521 460 162 DDMW-2 12i22!2004) Diesel Dispensers CSA <9.7 50 400 1,600 700 2,800 I,650 3,150 101512010 Diesel Dispensers CSA NA 61 NA 230 NA NA 291 NA 7/14/2011 Diesel Dispensers CSA <35 205 160 503 201 409 708 363 21- Standard ( L) 420 NA NA 21 a 42,000 4,200 210 4,200 GCL( L1 NA NA NA NA NA NA NA NA NC 2B Standard ur EPA National Criteria (P /L) NA NA NA NA NA NA NA NA Notes: (WI. -Gross Contamination Level 2L Standard=Noil li Carolina Groundwater Quality Standards (CiWQS: Results reposed in pg11. & reporting limits are at the melhod deice Iion limit 1MDL pgll: micrograms per liter J-Estimated value hetwee n the reporting limit and M171. NA -Not AppiicableNot AnalyxedlNnt Available Groundwater standards taken from July 15, 2008 Guidelines for Assess meal and Corrective Aclion for UST Releases Bold value indicates detections Bold and shaded values indicate exceedancc of the Soil to Groundwater MSCC EPA -Environmental Protection Agency C9-1222 Aromatic (Adjusted)=c+d C9-C 18 AIiphatics (Adjusted)---(a-c)+h BR1: Below Reporting I.imii NR-Not reported ATTACHMENT A Laboratory Reports SAIC Energy. Environment, & Infrastnicture, LLC e-H ardcopy 2.0 Automated Report . Southeast a,o.cC;uTEsT L r, f] [] R A T❑ 1= I E S Technical Report for Travel Centers of America SAICPAH: TA -Greensboro; 1101 NC Hwy 61, Whitsett, NC Accutest Job Number: F84283 Sampling Date: 07/14/11 Report to: Science Applications Int' l Corp 6310 Allentown Blvd Harrisburg, PA 17112 Iltdefieldk@s.aic.com ATTN: Kent Littlefield Total number of pages in report: 36 �H ACCOR A� F4 x fi�' I Test results contained within this data package meet the requirements arry Behzadi, Ph.D. of the National Environmental Laboratory Accreditation Conference Laboratory Director and/or state specific certification programs as applicable. Client Service contact: Muna Mohammed 407-425-6700 Certifications: FL (E83510), LA (03051), KS (EA0327). ]A (366), IL (200063), NC (573). NJ (FLO02), SC (96038001) DoD ELAP (L,-A-El L2229), CA (04226CA), TX (T1O4704404), AK, AR, GA, KY, MA, NV, OK, UT, VA, WA, WI This report shall not be reproduced, except in its entirety, without the written approval of Accutest Laboratories. Test results relate only to samples analyzed. Southeast • 4405 Vineland Road - Suite C-15 • Orlando, FL 32811 • let: 407-425.67DO , fax: 407.425-0707 - http://www.accutest.com 1 of 36 Accutest Laboratories is the sole authority far authorizing edits or modifications to this �• C>-u-rES`f: document. Unauthorized modification of this report is strictly prohibited. F84283 ••�,, M ACCLJ-T'EST I. A H 0 R A Y (] g I F. S October 4, 2011 Mr. Kent Littlefield Science Applications Int'l Corp 6310 Allentown Blvd Harrisburg, PA 17112 RE: Accutest job F84283 Reissue Dear Mr. Littlefield, The final report for job number F84283 has been edited to reflect requested corrections. These edits have been incorporated into the revised report. MIL lowered. Accutest apologies for any inconvenience this may have caused. Please feel free to contact us if we can be of further assistance. Sincerely, Accutest Laboratories, SE Florida • 4405 Vineland Road i Suite C-15 •Orlando, FL 32811 4 tel: 407 425-6700 • tau: 447 425-0707 r htpp:hLs .accutest.canq ■i 2 of 36 aACCLJTE=—B'T. F84283 `"'.-.-" ' Table of Contents Section 1: Sample Summary.............................1.................................................................... Section2: Sample Results........................................................................................................ 2.1: F84283-1: CSAMW-1.................................................................................................. 2.2: F84283-2: CSAMW-2.................................................................................................. 2.3: F84283-3: CSAMW-3.................................................................................................. 2.4: F84283-4: CSAMW-4.................................................................................................. 2.5: F84283-5: DDMW-2.................................................................................................... 2.6: F84283-6: TRIP BLANK............................................................................................. Section3: _Ilisc. Forms............................................................................................................ 3.1: Chain of Custody........................................................................................................... Section 4: GC Volatiles - QC data Summaries..................................................................... 4.1: Method Blank Summary........................................................................... .................... . 4.2: Blank Spike/Blank Spike Duplicate Summary .............................................................. 4.3: Matrix Spike/Matrix Spike Duplicate Summary........................................................... Section 5: Misc. Forms (.4ccutest Labs of lie►`= England, Inc.) ............................................ 5.1: Chain of Custody........................................................................................................... Section 6: GC Semi-volatiles - QC Data (Accutest Labs of New England, Inc.) ................ 6.1: Method BIank Summary ................................................................................................ 6.2: Blank Spike/Blank Spike Duplicate Summary.............................................................. 6.3: Matrix Spike/Matrix Spike Duplicate Summary ........................................................... Sections: 4 5 6 8 10 12 14 16 17 18 20 21 24 27 30 31 33 34 35 36 an 3 of 36 0 A"MMu-rr=OM F84283 .....,o„�. t Accutest Laboratories Sample Summary Travel Centers of America Job No: F84283 SAICPAH: TA -Greensboro; 1101 NC Hwy 61, Whitsett, NC Sample Collected Matrix Client Number Date Time By Received Code Type Sample ID F84283-1 07/ 14/ 11 11: 10 LA 07/ 15/ 11 AQ Ground Water CSAMW-1 F84283-2 07/ 14/ 11 15:20 LA 07/ 15/ 11 AQ Ground Water CSAMW-2 F84283-3 07/ 14/ 11 10:35 LA 07/ 15/ 11 AQ Ground Water CSAMW-3 F84283-4 07/ 14/ 11 15:05 LA 07/ 15/ I 1 AQ Ground Water CSAMW4 F84283-5 07/ 14/ 11 10:40 LA 07/ 15/ 11 AQ Ground Water DDMW-2 F84283-5 07/ 14/ 11 00:00 LA 07/ 15/ 1 1 AQ Trip Blank Water TRIP BLANK 1"i 4of36 � ACCI.._lT�ST, FS4287 Section 2 Southeast ACC�LJTEST L A R❑ R A T❑ R I E S Sample Results Report of Analysis on 5 of 36 w ACC UTEST. F94283 ` .......... F Accutest Laboratories Report of Analysis Client Sample ID: CSAMW-1 Lab Sample ID: F84283-1 Date Sampled: 07/14/11 ,Matrix: AQ - Ground Water Date Received: 07/ 15/ 11 Method: MADEP VPH REV 1. l Percent Solids: nla Project: SAICPAH. TA -Greensboro: 1101 NC Hwy 61, Whitsett, NC j Page 1 of I File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #i UV046334.D 1 07/27/11 CP nla n: a GUV2646 Run #2 Purge Volume Run #1 5.0 ml Run #2 MADEP VPH List CAS No. Compound Result RL MDL Units Q C5- C8 Aliphatics (Unadj.) ND 100 35 ug/l C9- C12 Aliphatics (Unadj.) ND 100 35 ug/i C9- CIO Aromatics (Unadj.) ND 100 35 ug/l CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 BFB 77% 70-130% 460-00-4 BFB 82% 70-1300/a ND = Not detected MDL - Method Detection Limit RL = Reporting Limit E = Indicates value exceeds calibration range = Indicates an estimated value B = Indicates analyte found in associated method blank N = Indicates presumptive evidence of a compound E—, 6 of 36 ACCLJT��T F8428] Accutest Laboratories Report of Analysis Client Sample ID: CSAMW-1 Lab Sample 1D: F84283-1 Date Sampled: 07/14/11 Matrix: AQ - Ground Water Date Received: 07/ 15111 Method: MADEP EPH REV 1.1 SW846 3510C Percent Solids: nla Project: SAICPAH: TA -Greensboro; 1 101 NC Hwy 61, Whitsett. NC N Page i of 1 File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 a BJ429&D 1 07/26/11 AMA 07i2lil l M:GP25610 M:GBJ177 Run #2 Initial Volume Final Volume Run #1 80.0 ml 2.0 ml Run #2 Extractable TPHC Ranges CAS No. Compound Result RL MDL Units Q C I I-C22 Aromatics (Unadj. ) ND 1300 130 ugll C9-C 18 Aliphatics ND 1300 67 uglt C19-C36 Aliphatics ND 1300 85 uglt CAS No. Surrogate Recoveries Run# I Run# 2 Limits 84-15-1 o-Terphenyl 80% 40-140% 321-60-8 2-Fluorobiphenyl 79% 40-140% 3386-33-2 1-Chlorooctadecane 56°/a 40-140% 580-13-2 2-Bromonaphthalene 55% 40-140% [a] Analysis performed at Accutest Laboratories, Marlborough, MA. ND = Not detected MDL - Method Detection Limit RL = Reporting Limit E = Indicates value exceeds calibration range J = Indicates an estimated value B = Indicates analyze found in associated method blank N = Indicates presumptive evidence of a compound ME 7 of 36 .AM C LJTEST. F84283 Accutest Laboratories Report of Analysis Client Sample ID: CSAMW-2 Lab Sample I D: F84283-2 Date Sampled: 07/ 14/ 11 Matrix: AQ - Ground Water Date Received: 07/ 15/ 11 Method: MADEP VPH REV 1.1 Percent Solids: Wa Project: SAICPAH: TA -Greensboro; i 101 NC Iiwy 61, Whitsett, NC irs Page 1 of 1 File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 UV0463131) 1 07/26/11 CP nla n/a GUV2645 Run #2 Purge Volume Run #1 5.0 ml Run #2 MADEP VPH List CAS No. Compound Result RL MDL units Q C5- C8 Aliphatics (Unadj.) N❑ too 35 ugll C9- C 12 Aliphatics (Unadj.) ND 100 35 ugll C9- C 10 Aromatics (Unadj.) ND 100 35 ugll CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits 460-004 BFB 79% 70-130% 460-00-4 BFB 90% 70-130% ND = Not detected MDL - Method Detection limit RL = Reporting Limit E = Indicates value exceeds calibration range J = Indicates an estimated value B = Indicates analyte found in associated method blank: N = Indicates presumptive evidence of a compound ■■ 8 of 35 0 ACCtJTEt3T. F9/263 •......""" r Accutest Laboratories Report of Analysis Client Sample ID: CSAMW-2 Lab Sample ID: F84283-2 Date Sampled: 07/ 14/ 11 Matrix: AQ - Ground Water Date Received: 07/ 15/ 11 Method: MADEP EPH REV I.1 SWW 3510C Percent Solids: nla Project: SAICPAH: TA -Greensboro: 1101 NC Hwy 61, Whitsett, NC N N Page l of l File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run 41 $ B]4359.D 1 07127i11 AMA 07/21/11 M:OP25610 M:GBd179 Run #2 Initial Volume Final Volume Run #1 120 mi 2.0 ml Run #2 Extractable TPHC Ran -es CAS No. Compound Result RL iMDL Units Q CI I-C22 Aromatics [Unadj,] N❑ 830 87 ug11 C9-C18 Aliphatics ND 830 44 ugjl C 19-C36 Aliphatics ND 830 56 ugll CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits 84-15-1 o-Terphenyl 62% 40-140% 321-60-8 2-Fluorobiphenyl 78% 40-1409'6 3386-33-2 1-Chlorooetadecane 43% 40-140% 580-13-2 2-Bromonaphthalene 59% 40-140% (a) Analysis performed at Accutest laboratories, Marlborough, MA, ND = Not detected MDL - Method Detection Limit RL = Reporting limit E = Indicates value exceeds calibration range = Indicates an estimated value B = Indicates analyte found in associated method blank N = Indicates presumptive evidence of a compound a , 9of36 N ACCLl-rEST F84283 ........ ...... Accutest Laboratories Report of Analysis Client Sample ID: CSAMW-3 Lab Sample ID: F84283-3 Date Sampled: 07/14/11 Matrix: AQ - Ground Water Date Received: 07/ 15/ 11 Method: MADEP VPH REV I.1 Percent Solids: nla Project: SAICPAH: TA -Greensboro; 1101 NC Hwy 61, Whitsett, NC N w Page 1 of 1 File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 UV046314.D 1 07/26/11 CP Na nla GUV2645 Run #2 Purge Volume Run #I 5.0 ml Run #2 MADEP VPH List CAS No. Compound Result RL MDL Units Q C5- C8 Aliphatics (Unadj.) ND 100 35 ugll C9- C12 Aliphatics (Unadj.) ND 100 35 ugll C9- C 10 Aromatics (Unadj.) N❑ 100 35 ugll CAS No. Surrogate Recoveries Run# I Run# 2 Limits 460-00-4 BFB 77% 70-130% 460-00-4 BF B 82% 70-130% ND = Not detected MDL - Method Detection Limit RL = Reporting Limit E = Indicates value exceeds calibration range I = Indicates an estimated value B = Indicates analyte found in associated method blank N = Indicates presumptive evidence of a compound 10of36 (♦ L.CCUTEzST. Accutest Laboratories Report of Analysis w Page 1 of 1 Client Sample 1D: CSAMW-3 Lab Sample ID: F84283-3 Date Sampled: 07/14/11 Matrix: AQ - Ground Water Date Received: 07/ 15/ 11 Method: MADEP EPH REV 1.1 SW846 3510C Percent Solids: Na Project: SAICPAH: TA -Greensboro; 1101 NC Hwy 61, WhitseM NC File 1D DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 a 6]4301. D 1 07126/ 11 AMA 07121/ 11 M:QP25610 M:GE J 177 Run #2 Initial Volume Final Volume Run # l 120 nil 2.0 ml Run #2 Extractable TPHC Ranges CAS No. Compound Result RL MDL CII-C92 Aromatics (Unadj.) ND 830 87 C9-C l8 Aliphatics ND 830 44 C I9-C36 Aliphatics ND 830 56 CAS No. Surrogate Recoveries Run# 1 Run# 2 84-15-1 o-Terphenyl 6g% b 321-60-8 2-Fluorobiphenyl 81% 3386-33-2 1-Chlorooctadecane 48% b 580-13-2 2-Bromonaphthalene 67% (a) Analysis performed at Accutest Laboratories, Marlborough, MA. (b) Surrogate recovery manually corrected for double spiking. Units Q ugl l ugll ugJl Limits 40-l40% 40-140% 40-140% 40-140% ND = Not detected MDL - Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyze found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound me 11 of 36 ■.4CCUTES-F F84283 `^•...... •, Accutest Laboratories Report of Analysis Client Sample ID: CSAMWA Lab Sample ID: F84283-4 Date Sampled: 071141 i l Matrix: AQ - Ground Water Date Received: 07/ 15/ 11 Method: MADEP VPH REV 1. I Percent Solids: nla Project: SAICPAH: 'TA -Greensboro; 1101 NC Hwy 61, Wlvtsett, NC sv Page 1 of l File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 UV046363.1) 1 07128/ 11 CP nla nla GUV2647 Run #2 a UV046315.D 1 07/26/11 CP n/a nla GUV2645 Purge Volume Run #1 5.0 m1 Run #2 5.0 ml MADIEP V PH List CAS No. Compound Result C5- C8 Aliphatics (Unadj.) ND C9- C12 Aliphatics (Unadj.) ND C9- C 10 Aromatics (Unadj.) N❑ CAS No. Surrogate Recoveries Rung 1 460-00-4 BFB 85% 460-00-4 BFB 91 % (a) Confirmation run. (b) Outside control limits. ND = Not detected MDL - Method Detection Limit RL = Reporting Limit E = Indicates value exceeds calibration range RL MDL [Units Q too 35 ugll too 35 ugll 100 35 ugll Run# 2 Limits 68% b 70-130% 71% 70-130% J = indicates an estimated value B = Indicates analyte found in associated method blank N = Indicates presumptive evidence of a compound ■'7 12 of 36 M ACCUTEST- F04283 ..4,..a,... Accutest Laboratories Report of Analysis Client Sample ID: CSAMWA Lab Sample ID: F84283-4 Date Sampled: 07/ 14/ 11 Matrix: AQ - Ground Water Date Received: 07/ 15/ 11 !Method: MADEP EPH REV 1.1 SW846 3510C Percent Solids: nla Project: SAICPAH; TA -Greensboro; l 101 NC Hwy 61. Whitsett, NC Page l of I File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 a BJ4302. ❑ 1 07/26/ 11 AMA 07/21/ 11 M:OP25610 M:GBJ 177 Run #2 Initial Volume Final Volume Run #1 120 ml 2.0 ml Run Q Extractable TPHC Ranges CAS No. Compound Result RL MDL Units Q Cl I-C22 Aromatics (Unadj.) N❑ 830 87 ug/1 C9-C 18 Aliphatics ND 830 44 ug/1 C 19-C36 Aliphatics ND 830 56 ugjl CAS No. Surrogate Recoveries Run# I Run# 2 Limits 84-15-1 o-Terphenyl 7t% 40-140% 321-60-8 2-Fluorobiphenyl 83% 40-140% 3386-33-2 1-Chlorooctadecane 49°/a 40-14011/6 580-13-2 2-Bromonaphthalene 67% 40-140% (a) Analysis performed at Accutest Laboratories, Marlborough, MA. ND = Not detected MDL - Method Detection Limit RL = Reporting Limit E = Indicates value exceeds calibration range J = Indicates an estimated value B = Indicates analyte found in associated method blank N = Indicates presumptive evidence of a compound �- 13 of 36 (* ACCIJTE�T 0 Accutest Laboratories Report of Analysis Client Sample ID: DDMW-2 Lab Sample ID: F84283-5 Date Sampled: 07/14/11 Matrix: AQ - Ground Water Date Received: 07/ 15/ 11 Method: MADEP VPH REV 1.1 Percent Solids: nla Project: SAICPAH: TA -Greensboro; 1101 NC Hwy 61, Whitsett, NC w ire Page I of 1 File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 UV046316.D 1 07/26/11 CP n./a nia GUV2645 Run #2 Purge Volume Run # 1 5.0 ml Run #2 MADEP VPH List CAS No. Compound Result RL MDL Units Q C5- C8 Aliphatics (Unadj.) ND 100 35 ug11 C9- C 12 Aliphatics (Unadj.) 160 100 35 ugll C9- C 10 Aromatics (Unadj.) 205 100 35 ug11 CAS No. Surrogate Recoveries Run# 1 Run# 2 Limits 460-00-4 BFB 78% 70-130% 460-00-4 BFB 83% 70-130% ND = Not detected MDL - Method Detection Limit RL = Reporting Limit E = Indicates value exceeds calibration range I = Indicates an estimated value B = Indicates analyte found in associated method blank N = Indicates presumptive evidence of a compound M■ 14 of 36 ACCU-rEST. F84283 "•�•, " •• t 4 Accutest Laboratories Report of Analysis Client Sample ID: DDMW-2 Lab Sample 1 D: F84283-5 Date Sampled: 07/ 14/ 11 ?Matrix: AQ - Ground Water Date Received: 07/ 15/ 11 Method: MADEP EPH REV 1.1 SW846 3510C Percent Solids: nla Project: SAICPAH: TA -Greensboro; 1101 NC Hwy 61, Whitsett, NC N LSI Page 1 of 1 File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 a 13J4303.1) 1 07/26/1) AMA 07/21/11 M:OP25610 M:GBJ177 Run #2 Initial Volume Final Volume Run #1 1210 nil 2.0 nil Run #2 Ex -tractable TPHC Ranges CAS No. Compound Result RL NIDL CI I-C2? Aromatics (Unadj.) 503 830 87 C9-C 18 Aliphatics 408 830 44 C19-06 Aliphatics 201 830 56 CAS No. Surrogate Recoveries Run# 1 Run# 2 8445-1 o-Terphenyl 62% 321-60-8 2-Fluorobiphenyl 841/1a 3386-33-2 1-Chlorooetadecane 41% 580-13-2 2-Bromonaphthalene 65% (a) Analysis performed at Accutest Laboratories, Marlborough, MA. ND = Not detected MDL - Method Detection Limit RL = Reporting Limit E = indicates value exceeds calibration range Units Q ugll J ugli J uwl J Limits 40-140% 40-140% 40-140% 40-140% J = Indicates an estimated value B = Indicates analyte found in associated method blank N = Indicates presumptive evidence of a compound ■-• 15of36 E.4CCtJTEST. Accutest Laboratories Report of Analysis Client Sample ID: TRIP BLANK Lab Sample 1D: F84283-6 Date Sampled: 07/ 14/ 11 Matrix: AQ - Trip Blank Water Date Received: 07/ 15/ 11 Method: MADEP VPH REV 1. I Percent Solids: nla Project: SAICPAH: TA -Greensboro; 1101 NC Hwy 61. Whitsett, NC N Page 1 of 1 File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 IN046317.D 1 07/27/11 CP nla nla GUV2645 Run #2 Purge Volume Run #1 5.0 ml Run #2 MADEP VPH List CAS No. Compound Result C5- C8 Aliphatics (Unadj.) ND C9- C 12 Aliphatics (Unadj.) N❑ C9- C10 Aromatics (Unadj.) ND CAS No. Surrogate Recoveries Run# 1 460-00-4 BF B 7 l % 460-00-4 BF B 76% ND = Not detected MDL - Method Detection Limit RL = Reporting Limit E = Indicates value exceeds calibration range RL NIDL Units Q 100 35 ug", I 100 35 ugd 100 35 ug/l Run# 2 Limits 70-130% 70-130% ] = Indicates an estimated value B = Indicates analyte found in associated method blank N = Indicates presumptive evidence of a compound 16 of 36 � ACCt_JT�ST F83:83 •••"•••"•••• Section 3 M Southea N,gn.cC;u-rEE3 L A 9 Q R AT OR I E Misc. Farms Custody Documents and Other Forms Includes the following where applicable: • Certification Exceptions • Certification Exceptions (NC) • Chain of Custody 1�. 17 of 36 ACCIJTEST F84283 a 4404 Vineland Rd. Suite C-15 Orlando Fi 32811 ❑1-1 A ccuresr Accteresr Lab �� Fi.gls.l a Chace of Cvatody Izeown gas Wcllearear NO CYpry Ramk: s C mku6� owtls �+ C � f�!¢71ee11d I�fil}�Ei6 AOOM� 0.750 Aartlwm BRO ftantadixp PA I1P. 1T112 ■ e i y PAd�elFsc 71'I.9p1 {9�y/r17-pp,-aloT wr Cy rtw�l L�hMMO Enos kd�.k eW*�accan Pere NartwMa. YA-GnMUGdv Sie Hrn.w,.nro ' TA�G�e SRa Lou" S, 01 fiC Mi.Y 61 1Nh4re NC F84283: Chain of Custodv Page 1 of 2 18 of 36 ACCLI"TEST. F84283 �"•'�"•�'«"' ACCCgUT��E5T LABORATORIES SAMPLE RECEIPT CONEIRMATION ACCIPIESrSJOB NIJMBER:�a ➢� CLIENT: 5 �(- PROJECT: 1. DATE/ITi,IERECEIVED: 11 00 : tp �& Y 24:OD) NDdBBROF COOLERS RECEIVED: 1 METHOD OF DELIVERY: LIPS ACCUTBST CO[1RIER Q GREYHOUND DELIVERY OTHER AIRBILL NUMBERS: 1ol1 51 19 1��a COQ ER INEOMUON CUSTODY SCAT. NOT PRESENT OR NOT INTACT CHAIN OF CUSTODY NOT RECEIVED [COC] ANALYSIS REQUESTED IS UNCLEAR OR MISMQG SAMPLE DATES OR TI RS UNCLEAR OR MISSING ERATURE CRITERIA NOT MET ll�RT ICE PRESENT TRIP BLANK NFORMATIaN TRIP BLANK PROVIDED TRIP BLANK NOT PROVIDED TRIP BLANK NOT ON COC TRIP BLANK INTACT TRIP BLANK NOT [NTACT IVHD WATER TRIP BLANK L_jRECEIVED SOIL TRIP BLANK 1 1 i mr. i 0 NUMBER OF ENCORES? 23-GRAM SRAM NUMBER OF 5035 FIELD KITS 7 NUMBER OF LAB FILTERED METALS 7 TEAVEX&,1Rk-INFORMATIQI+i j THERM ID 1 CORIL FACTOR OBSERVED TEMPS: CORRECTED TEMPS: i SAMPLE INFO&MATIOH SAMPLE LABELS PRESENT ON ALL BOTTLES INCORRECT NUMBER OF CONTAINERS USED SAMPLE RECEIVED IMPROPERLY PRESERVED INSUFFICIENT VOLUME FOR ANALYSIS ATESRIMES ON COC DO NOT MATCH SAMPLE LABEL S ON COC DO NOT MATCH LABEL VOC VIALS HAVE HEADSPACE (MACRO BUBBLES) BOTTLES RECEIVED BUT ANALYSIS NOT REQUESTED O BOTTLE RECEIVED FOR ANALYSIS REQUESTED UNCLFAR FILTERING OR COMPOSTIING OUi'RUCTIONS SAMPLE CONTAINEWSj RECEIVED BROKEN % SOLIDS JAR NOT RECEIVED 9 5035 FIELD SIT FROZEN WSTHIN 48 HOUR' S S[AL'AL CHLORINE PRESENT WFICARLE TO EYA 6W Ski IRS ORNORT13 CAROLINAt7RGAMC'JI C-j LW 9Lm0AARYOFCOMMENTS: Wc. rich i rCr,�+� vials lifP+? all dR14- F& TEcEmc" SIGNATURFmATE k-:-T )-% Is ' \k REVIEWER SIGMA NF 12110 receipt confirmation 122910.)ds F84283: Chain of Custody Page 2 of 2 �■ 19 of 36 ACCLJTE�T. Section 4 Southeast /N C; C; 7F F— E3 TT L A B❑ R A T 0 R I E S GC Volatlles QC Data Summaries Includes the following where applicable. • Method Blank Summaries • Blank Spike Summaries • Matrix Spike and Duplicate Summaries ■ 20 of 36 F84283 ...Ong•• r 0 y t Method dank Summary Job Number: F84283 Account: TRAVELSS Travel Centers of America Project: SAICPAH: TA -Greensboro; 1101 NC IIwy 61, Whitsett, NC Page l of I Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch GUV26,45-MB UV046309, D 1 07/26/11 CP ttla n: a GUV2645 The QC reported here applies to the following samples: F84283-2. F84283-3, F84283-5, F84283-6 Method: MADEP VPH REV 1.1 CAS No. Compound Result RL MDL Units Q C5- C8 Aliphatics (Unadj.) ND too 35 ug/I C9- C12 Aliphatics (Unadj.) N❑ too 35 ugll C9- C 10 Aromatics (Unadj.) ND 100 35 ug/1 CAS No. Surrogate Recoveries Limits 460-00-4 BFB 82% 70-130% 460-00-4 13FB 90% 70-130% MM 29 of 36 ACCLJ-rE�T. F54283 I..... "" 0 } 1 Method Blank Summary Job Number: F84283 Account: TRAVELSS Travel Centers of America Project: SAICPAH: TA -Greensboro; 1101 NC I Iwy 61, Whitsen, NC Page I of i Sample File LD DF Analyzed By Prep Date Prep Batch Analytical Batch G1UV2646-MB UV046329.D 1 07/27/ 11 CP nla nla GUV2646 The QC reported here applies to the following samples: F 84-83- I Method: MADE P VP H REV 1. 1 CAS No. Compound Result RL MDL Units Q C5- C8 Aliphatics (Unadj.) ND 100 35 ugll C9- C12 Aliphatics (Unadj.) ND 100 35 ugll C9- Cl0 Aromatics (Unadj.) ND 100 35 ug/l CAS No. Surrogate Recoveries Limits 460-00-4 BFB 80% 70-130% 460-00-4 BEB 97% 70-130% A s ■ 22 of 36 E.4CC1--fTE=-ST. F84283 •"•" 9 1 4 ! Method Blank Summary Page 1 of I Job Number: F84283 Account: TRAVELSS Travel Centers of America Project: SAICPAH: TA-Greensburo; 1101 NC Hwy 61. Whitsett, NC Sample File 1D aF Analyzed By Prep Date Prep Hatch Analytical Batch GUV2647-MB UV046371.D 1 07/28/11 CP nla Wa GUV2647 The QC' reported here applies to the following samples: Method: MADEP VPII REV 1. 1 F84283-4 CAS No. Compound Result RL MD1- Units Q C5- C8 Aliphatics (Unadj.) ND 100 35 ugll C9- C 12 Aliphatics (Unadj. ) ND 100 35 ugll C9- C10 Aromatics (Unadj.) ND 100 35 ugll CAS No. Surrogate Recoveries Limits 460-00-4 BFB 73% 70-130% 460-00-4 BFB 75% 70-130% 23 of 36 F84281 r0, a Blank Spike/Blank Spike Duplicate Summary Page I of I Job Number: F84283 Account: TRAVELSS Travel Centers of America Project: SAICPAH: TA -Greensboro; 1 101 NC Hwy 61, Whitsett. NC Sample File 1D ❑F Analyzed By Prep Date Prep Batch Analytical Batch GUV2645-BS UV046298.D 1 07126/ 11 CP nla n/a GUV2645 GUV2645-BSD UV046299. D 1 07126/ 11 C P nla nla GUV2645 The QC reported here applies to the following samples: Method: MADEP VPH REV 1. I F84283-2, F84283-3, F84283-5, F84283-6 Spike BSP BSP BSD BSD Limits CAS No. Compound ugll ugll % ugll % RPD Rec/RPD C5- C8 Aliphatics (Unadj.) 480 543 113 575 120 6 70-130125 C9- C 12 Aliphatics (Unadj.) 640 714 112 728 114 2 70-130125 C9- C10 Aromatics (Unadj.) 240 247 103 250 104 1 70-130/25 CAS No. Surrogate Recoveries BSP BSD Limits 460-00-4 BFB 94% 97% 70-130% 460-00-4 BFB 103% 108% 70-130% 24 of 36 �.4CCLFT�ST F84283 9 Blank Spike/Blank Spike Duplicate Summary Page i of I ,lob Number. F84283 Account: TRAVELSS Travel Centers of America Project: SAICPAH: TA -Greensboro; 1101 NC Hwy 61, Whitsett, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch GUV2646-BS UV046327. D 1 07/27/ 11 CP nia nla GUV2646 GUV2646-BSI] UV046328.D1 07/2711I CP nla nla GUV2646 The QC reported here applies to the follo► hig samples: Method: MADEP VPH REV 1. 1 F84283-1 Spike BSP BSP BSD BSD limits CAS No. Compound ugll ugll % ugll % RPD Rec/RPD C5- C8 Aliphatics (Unadj.) 480 544 113 561 117 3 70-130125 C9- C 12 Aliphatics (Unadj.) 640 709 111 721 113 2 70-130125 C9- C l 0 Aromatics (Unadj.) 240 244 102 245 102 0 70-130125 CAS No. Surrogate Recoveries BSP BSD Limits 460-004 BFB 94% 98% 70-130°/a 460-00-4 BFB 102% 108% 70-130% 25 of 36 ACCL-j-r. T. F84283 `"'O"'"•• . ; % a Blank Spike/Blank Spike Duplicate Summary Page I of I Job Number: F84283 Account: TRAVELSS Travel Centers of America Project: SAICPA-H: TA -Greensboro; 1101 NC Hwy 61, W'hitsett. NC Sample File 1D DF Anaiyaed By Prep Date Prep Batch Analytical Batch GUV2647-BS UV046360.13 1 07/28/11 CP n/a Wa GUV2647 GUV2647-BSD UV046361.D 1 07/28/11 CP n/a nla GUV2647 The QC reported here applies to the following samples: Method: MADE VPI I REV 1. 1 F84283-4 Spike BSP BSP BSD BSD Limits CAS No. Compound ugll ug11 % ugll % RPD Rec/RPD C5- C8 Aliphatics (Unadj. ) 480 553 115 552 115 0 70-130/25 C9- C 12 Aliphatics (Unadj. ) 640 745 116 725 113 3 70-130/25 C9- C 10 Aromatics (Unadj.) 240 250 104 245 102 2 70-130125 CAS No. Surrogate Recoveries BSP BSD Limits 460-00-4 BFB 96% 990/0 70-130% 460-00-4 BFB 107% 107% 70-i30°Io �i 26 of 36 ACCUT>=ST. . , k . Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 1 .lob Number: F84283 Account: TRAVELSS Travel Centers of America Project: SAICPAH: TA -Greensboro; i 101 NC llwy 61. Whitsett- NC Sample File ID DF Analyzed By Prep Date Prep batch Analytical Batch F84283-4MS UVO46321.D 1 07/27/ 11 CP n/a n/a GUV2645 F84283-4MSD UV046322.D 1 07/27/11 CP n/a n/a GUV2645 F84283-4" UV046315,D 1 07/26/11 CP n/a n/a GUV2645 The QC reported here applies to the following samples: Method: MADEP VP11 REV 1, 1 F84283-2, F84283-3, F84283-5, F84283-6 F84283-4 Spike MS MS MSD MSD Limits CAS No. Compound ugll Q ugll ugll % ugll % PPD Ree/RPD C5- C8 Aliphatics i Unadj.) ND 480 493 103 520 108 5 70-130150 C9- C 12 Aliphatics (Unadj.) ND 640 634 99 666 104 5 70-130150 C9- C 10 Aromatics tUnadj.) ND 240 219 91 227 95 4 70-130150 CAS No. Surrogate Recoveries MS MSD F84283-4 Limits 460-004 BFB 92% 92% 68%* b 70-130% 460-00-4 BFB 100°/a 102% 71% 70-130°1v (a) Confirmation run. (b) Outside control limits. 27 of 36 (♦ ACCiJTt<F�—T- F84283 Matrix Spike/Matrix Spike Duplicate Summary Page i of I Job Number: F84283 Account: TRAVELSS Travel Centers of America Project: SAICPAI l: TA -Greensboro; 1 101 NC Hwy 61, Whitsett, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch F84283-1MS UV046352.D1 07/28/11 CP nla ri.'.l GUV264b F84283-1 MSD UV046353. D 1 07/28/11 CP nla nia GUV2646 F84283-1 UV046334.D1 07/27/11 CP nla nla GUV2646 The QC reported here applies to the following samples: Method: MADEP VPI1 REV 1.1 F84283-1 F84283-1 Spike MS MS MSD MSD Limits CAS No. Compound ug11 Q ugll ugll % ugll % RPD Rec/RPD C5- C8 Aliphatics (Unadj.) ND 480 541 113 542 113 0 70-130/50 C9- C12 Aliphatics (Unadj. ) N❑ 640 693 108 708 111 2 70-130150 C9- C10 Aromatics (Unadj. ) N❑ 240 248 103 254 106 2 70-130150 CAS No. Surrogate Recoveries MS MSD F84283-1 Limits 460-00-4 BFB 94% 99% 77% 70-130% 460-004 BFB 103% 10800 82% 70-130% 28 of 36 accuTlsT F84283 ...•�..•... ..•.• , . 0, • Matrix Spike/Matrix Spike Duplicate Summary Job Number: F84283 Account: TRAVELSS Travel Centers of America Project: SAICPAH: TA -Greensboro: 1 101 NC Hwy 61, Whitsett, NC Sample File ID DF F84397-15MS UV046390.D i F84397-15MSD UVO46391.D l F84397-15 UVO46385.D 1 Analyzed BY Prep Date 07/29/ 11 CP n/a 07/29J I I CP n/a 07/ 29/ 11 CP n/a Page I of I Prep Batch Analytical Batch n/a GUV2647 Na GUV2647 n.la GUV2647 ! The QC reported here applies to the following samples: Method: MADEP VPH REV 1.1 F84283-4 F84397-15 Spike MS NIS MSD MSD Limits CAS No. Compound ugll Q ugll ugll % ugll % RP❑ Rec1RPD C5- C8 Aliphatics (Unadj.) 5I.5 1 480 602 115 587 112 3 70-130150 C9- C12 Aliphatics (Unadj.) N❑ 640 748 117 710 111 5 70-130150 C9- C 10 Aromatics (Unadj. ) ND 240 253 105 238 99 6 70-130/50 CAS No. Surrogate Recoveries MS ,MSD F84397-15 Limits 460-004 BFB 87% 86% 700/a 70-130% 460-00-4 BFB 95% 91% 740% 70-13011/a 29 of 36 E AC U-rE=-B-V F84283 ......I-- a ,% Section 5 Southeast AGCUTE�T L ABCFIATORIES Misc. Forms Custody Documents and Other Forms (Accutest Labs of New England, Inc.) Includes the following where applicable: • Chain of Custody J ■ 30 of 3s � ACCUTEST. F84283 . ,, F84283: Chain of Custody Page I of 2 Accutest Labs of New England, Inc. ■ 31 of 36 F84M `.....1-"" i, r .h ACCLJTEST �,ioeAATo�rF. Accutest Laborat Accutest Job Numbar: F84283 CUSS: APSE Dote [Time Received: 711912011 Delivery Method, Project: — — No. Coolers: Cooler saurkv Y or N Y or N 1 Cuslocy Seals Present: ® ❑ 3. COG Present. 2 ❑ 2 Custody Seals Intact ® ❑ 4 Smpl DateslTime OK ® [] Cooler Temperature Y or t Tamp criteria achieved [a N ❑ 2 Cooler temp venficabon. Inrared gun 3 Cooler media: Ice (bag) QqsffbLQ9WuLEm2ntsk Y or N NIA ❑ 1 Trip Blank present I cooler ❑ 2. Trip Blank hated on COC. ❑ 3. Samples pressived properly ® ❑ 4 VOCs headsoace free ® ❑ U Comments A--X—i Lahrnuvriea v 508 481 62M ories Sample Receipt Summary Immediate Client Services Action Required: No Client Service Action Required at Login: NO Alrbill Vs: 1 Sample lapels presert on t)ortles n ❑ 2 Container labeling complete 2 3. Sample container label I CCC agree 0 ❑ $ample Irtftr y - Cenditjvp Y or N 1 $ample recvd wilhn HT 0 ❑ 2. All containers accounted for 6a ❑ 3 cond-lion of sample Intact__ Samplelntearlty- Instructions 1 Analysis requesled is clear Y ® or N MA ❑ 2. Bottles received for unspecified tests ❑ 12 3. Suft"rit Volume recvd W analysis ® ❑ 4 Compositing instructions clear ❑ ❑ 5 FiHering rnslructions clear. ❑ ❑ 8 195 Te lino" Cener VVMt. 6mg 0r F 508481?1. Vs r:Gcro�gr, MA •rm. accuiesi rom F84283: Chain of Custody Pagel 2 of 2 ■ 32 of 36 ■ acCZ; u-rEsT , Section 6 . Southeast E ACc;LJTE,u- -r LAB0rtAT0RIES GC Semi-volatiles QC Data Summaries (Accutest Labs of New England, Inc.) Includes the following where applicable: • Method Blank Summaries • Blank Spike Summaries • Matrix Spike and Duplicate Summaries ME 33 of 36 M ACCLJTEST. F84283^•e.�.•.r. Method Blank Summary Page l of 1 Job Number: F84283 Account: AL.SE Accutest Laboratories Southeast, Inc. Project: TRAVELSS: SAICPAH: TA -Greensboro: l 101 NC Hwy 61, Whitsent NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch GP25610-MB BJ4256. D 1 07123/ 11 AL 07/21 / l 1 OP25610 G8J 176 The QC reported here applies to the fallowing samples: Method: MADEP EPH REV l.1 F84283-1, F84283-2, F84283-3, F84283-4, F84283-5 CAS No. Compound Result RL MDL Units Q C l i -C22 Aromatics (Unadj, ) ND 100 too ugll C4-C18 Aliphatics ND too 10o ugll C 14-C36 Aliphatics ND too 100 ugll CAS No. Surrogate Recoveries Limits 84-15-1 o-Terphenyl 62% 40-140% 321-60-8 2-Fluorobiphenyl 75% 40-1401/0 3386-33-2 1-Chlorooetadecane 43% 40-140% 580-13-2 2-Bromonaphthalene 71% 40-140% 34 of 36 ACCIJT�ST. F84283 r, IF Blank Spike/Blank Spike Duplicate Summary Page I of I Job Number: F84283 Account: ALSE Accutest Laboratories Southeast, Inc. Project: TRAVELSS: SAICPAH: TA -Greensboro; 1 101 NC Hwy 61, Whitsett, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch OP2561 Q-BS B]4257. D 1 07/23/ 11 AL 07/21/ 11 ❑P25610 GBJ 176 OP25610-8SD B]4258. D 1 07/23/ 11 AL 07/21/11 OP25610 GBJ 176 The QC reported here applies to the folloFring samples: Method: MADEP EPH REV l,1 F84283-1. F84283-2, F84283-3, F84283-4, F84283-5 Spike BSP BSP BSD BSD Limits CAS No. Compound ugll ug/l % ug/1 % RPD RccIRPD CII-C22 Aromatics (Unadj.) 800 647 81 a 632 79 It 2 40-140125 C9-C18 Aliphatics 300 N❑ 27* b ND 27* b 2 40-140/25 C19-C36 Aliphatics 400 2165 fib 271 68 2 40-14W25 CAS No. Surrogate Recoveries BSP BSD Limits 84-15-1 o-Terphenyl 70% 68% 40-140% 321-60-8 2-Fluorobiphenyl 73% 71% 40-140% 3386-33-2 1-Chlorooctadecane 40% 4I% 40-140% 580-13-2 2-Bromonaphthalene 71% 65% 40-140% Sample Compound Col #1 Col #2 Breakthrough Limit OP25610-13S 2-Methy1naphthalene 17.9 0.51 2.8% 5.0 ❑P25610-BS Naphthalene 19.8 1.2 5.7°/n* 5.0 OP25610-13SD 2-Methylnaphthalene 17.9 0.99 5.2%* 5.0 OP25610-BSD Naphthalene 19.9 2A 9.5%* 5.0 (a) Aromatic breakthrough (naphthalene and/or 2-methyinaphthalene) exceeded 5% method limit. Results confirmed by refractionation. (b) Recovery of n-nonane was < 30% for laboratory control sample. on 35 of 36 ACCLJTEST. A .a Matrix Spike/Matrix Spike Duplicate Summary Page I of I Job Number: F84283 Account: ALSE Accutest Laboratories Southeast, Inc, Project: TRAVELSS: SAICPA14: TA -Greensboro; 1101 NC Hwy 61, Whitsett. NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch ❑P25610-MS BJ4259, D 1 07/23/ 11 AL 07/21; 11 OP25610 GBJ 176 OP25610-MSD BJ4260, D 1 07/23/ 11 AL 07/21/ 11 OP25610 GBJ 176 MC2029-1 BJ4261. D 1 07/23/ 11 AL 07/21/ 11 OP25610 GBJ 176 The QC reported here applies to the foll(minh samples: Method: MADEP EPH REV 1.1 F84283-1. F84283-2, F84283-3, F84283-4, F84283-5 MC2029-1 Spike MS MS MSD MSD Limits CAS No. Compound owl Q ug/1 ug/l % ug/l % RPD Rec/RPD Cl l-C22 Aromatics (l.Inadj. ) ND 800 656 82 659 82 0 40-140/25 C9-C18 Aliphatics ND 300 159 53 146 49 9 40-140/25 C19-06 Aliphatics ND 400 314 79 286 72 9 40-140/25 CAS No. Surrogate Recoveries MS MSD MC2029-1 Limits 84-15-1 o-Terphenyl 68% 66% 63% 40-140% 321-60-8 2-Fluorobiphenyl 74% 73% 76% 40-140% 3386-33-2 1-Chlorooctadecane 26%* a 27%* 8 240/;* 8 40-140% 580-13-2 2-Bromonaphthalene 64°/6 70% 70% 40-1401% (a) Outside control limits due to possible matrix interference. Confirmed by Matrix Spike/Matrix Spike Duplicate. IN 36 of 36 ■accu-FF—s--r F84287 °•