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Home My WebLink AboutWS-6367_6367_CA_O_20230413_MW-abandonment-request April 13, 2023 Mr. James W. Brown Regional Supervisor Winston-Salem Regional Office UST Section, Division of Waste Management North Carolina Department of Environmental Quality 450 West Hanes Mill Road, Suite 300 Winston-Salem, North Carolina 27105 RE: Request to Abandon Site Monitoring and Remediation Wells TransMontaigne – Greensboro Terminal 6801 W. Market St., Greensboro, Guilford County, North Carolina NCDENR Incident No. 6367 Dear Mr. Brown: In accordance with the February 17, 2023 letter from the North Carolina Department of Environmental Quality (NCDEQ), Winston-Salem Regional Office (WSRO) to TransMontaigne, this letter presents a request, with rationale, to abandon (a.k.a., decommission) select groundwater monitoring and remediation wells at the TransMontaigne-Greensboro petroleum bulk terminal and transportation terminal referenced above in Greensboro, North Carolina. The site location is shown in Figure 1 (Attachment 1). The site layout, including locations of the fifty-two remaining site groundwater monitoring wells and twenty-six remaining groundwater remediation wells is shown in Figure 2. Well construction details are listed in Table 1 (Attachment 2). A historical summary of groundwater analysis results for current site monitoring wells is provided as Attachment 3. As listed in Table 1, site monitoring and remediation wells range in depth from approximately 15-feet to 127- feet below grade, with well screens and open-hole intervals set within subsurface zones characterized as shallow saprolite, intermediate and deep saprolite, and bedrock. Well diameters range from 2-inches in inside diameter (I.D.) to 6-inches I.D. Wellheads are completed with either stickup protective casings or within flush-mount protective manholes. TransMontaigne and predecessors completed various site assessment and remediation efforts from around the late 1980s through 2017 to address historical site soil and groundwater contamination under NCDEQ Incident No. 6367. Sitewide active soil/groundwater remediation was conducted from 2001 through 2015. Initial efforts from 2001-2009 involved the operation of a combined groundwater/free-product recovery and soil vacuum extraction (SVE) system. Subsequent efforts from 2009-2015 involved the operation of a combined air sparging/SVE system. Request to Abandon Site Monitoring and Remediation Wells TransMontaigne-Greensboro Terminal April 13, 2023 2 PIEDMONT GEOLOGIC, P.C. A New Technology Cleanup Plan (NTCP) was submitted to NCDEQ in May 2017.1 The NTCP provided a proposal to expand the site air sparging system to enhance groundwater remediation in the area of a well with lingering benzene concentrations above the NCDEQ Gross Contamination Level (GCL). The report also stated TransMontaigne’s plan to proceed with NCDEQ requirements for risk-based site regulatory closure per 15A NCAC 2L .0507(d) following achievement of GCL compliance. NCDEQ approval of the May 2017 NTCP was transmitted via a May 22, 2017 letter to TransMontaigne. NCDEQ’s position on risk-based closure was further clarified in a February 5, 2018 letter to TransMontaigne, which stated that NCDEQ “may consider site closure under risk-based rules if no GCL violations are detected in four (4) consecutive quarterly groundwater-monitoring events after shutdown of the active remediation system.” NCDEQ’s position on this matter was subsequently reinforced via a February 7, 2018 email between NCDEQ and Piedmont Geologic, in which NCDEQ agreed that there was no reason being considered that would prevent a risk-based closure implementation following achievement of the GCL compliance per above. Achievement of the stated GCL compliance occurred through quarterly groundwater monitoring events completed from March 2018 to February 2019. Accordingly, TransMontaigne initiated the process of pursuing risk-based site closure. NCDEQ involvement in this process is documented in a series of emails between NCDEQ and Piedmont Geologic from February 21 to March 4, 2019, which reflected NCDEQ’s intentions on issuing a notification of conditional No Further Action (NFA) following: 1) submittal and NCDEQ approval of a Notice of Residual Petroleum (NRP), and 2) execution of a Property Owner Consent to Risk-Based Remediation by Products Pipe Line Company (PPL), who own the terminal property (6367 Burnt Poplar Drive) directly west of the TransMontaigne property. This latter requirement was ostensibly based on the detections of groundwater COCs at concentrations above North Carolina groundwater standards under 15A NCAC 2L .0202 (the “2L standards”) in TransMontaigne monitoring-wells MW-18 and MW-49, in the southwestern portion of the TransMontaigne site property. Following contact by TransMontaigne, PPL declined to cooperate in the process of executing the Property Owner Consent on behalf of TransMontaigne. As a result, TransMontaigne has been blocked from completing the NCDEQ-approved risk-based closure procedure as described above. It is noted that there is no confirmation that encroachment of groundwater COCs from the TransMontaigne property to the PPL property, per above, has occurred. In addition, TransMontaigne has demonstrated that some, if not all, of these southwestern groundwater COC concentrations may be attributable to encroachment of groundwater COCs through the TransMontaigne property from an upgradient site to the east (the GNC Energy site). Accordingly, TransMontaigne has petitioned NCDEQ to waive the Property Owner Consent requirement for risk-based closure in this site-specific case. However, this petition to date has gone unapproved. In early January 2023 TransMontaigne received a request from NCDEQ to complete a groundwater monitoring event for the site. TransMontaigne complied with this request although the need for such monitoring is questioned as the site would already have been issued risk-based regulatory closure with one signature being procured from PPL. 1 Piedmont Geologic, P.C., May 15, 2017, New Technology Cleanup Plan, TransMontaigne-Greensboro Terminal. Request to Abandon Site Monitoring and Remediation Wells TransMontaigne-Greensboro Terminal April 13, 2023 3 PIEDMONT GEOLOGIC, P.C. Results of January 2023 site groundwater monitoring are detailed in a February 3, 2023 letter from Piedmont Geologic to NCDEQ.2 The February 3 letter largely repeats the narrative presented above along with the conclusion that results of the January 2023 site groundwater sampling/analysis indicate no changes in site conditions that would warrant negation of risk-based closure as a continued legitimate site-closure approach for immediate implementation (i.e., with no additional site groundwater monitoring). Accordingly, TransMontaigne requested that NCDEQ allow for abandonment of site monitoring wells per 15A NCAC 2C, under the assurance that no future monitoring well replacements are required for those abandoned, absent of a new release incident. TransMontaigne offered to retain a reasonably limited number of site monitoring wells for potential future contingency purposes, provided that future annual Guilford County permitting fees are waived. NCDEQ, via the February 17, 2023 letter to TransMontaigne, agreed to TransMontaigne’s proposed well abandonment approach, contingent upon submittal and NCDEQ-approval of this proposal. Per above, TransMontaigne requests approval to abandon a total of twenty-nine of the existing fifty-two site monitoring wells plus all twenty-six existing site remediation wells. Site wells to be retained versus site monitoring wells to be abandoned are shown in Figure 3. Rationale behind the proposed abandonment versus proposed retention for each site monitoring/remediation well are included in Table 2. Rationale common between various site wells are summarized as follows. 1. As previous active site remediation efforts were completed to practicable endpoints, no further site remediation is envisioned or warranted, and all site remediation wells will be abandoned. 2. Site monitoring wells with a demonstrated record of no groundwater COC detections, or no COC detections at concentrations above 2L standards, over suitable period of time (i.e., generally eight or more of the most-recent groundwater sampling/analysis events) will be abandoned. 3. Some monitoring wells that are redundant with respect to other nearby retained monitoring wells will be abandoned. Site monitoring-wells MW-19, MW-35, and MW-36 are located along the northern site property boundary, south of West Market Street, and historically have demonstrated groundwater COC concentrations above 2L standards. As shown in the graphs in Attachment 4, the final years of groundwater monitoring for these wells through 2017 demonstrated relatively low COC concentrations and stable COC concentration trends over time. Mann-Kendall statistical analysis (Attachment 4) also indicates no statistically increasing trends. In addition, site monitoring wells on the opposite (i.e., northern) side of West Market Street, downgradient of MW-19/MW- 35/MW-36, including MW-41 and MW-47, have historically demonstrated no groundwater COC concentrations above 2L standards (with one exception from 2003 for MW-47), thus demonstrating no significant offsite migration of groundwater COCs to the north of the site property, and negating the necessity to retain MW-19, MW-35, and MW-36. As it is also desirable to remove site monitoring wells from the Norfolk Southern railroad right-of-way corridor, MW-19, MW-35, and MW-36 will be abandoned. The site monitoring-well network to be retained is shown in Figure 4, with construction details for the wells to be retained wells listed in Table 3. The retained monitoring well network will include wells in all three aquifer 2 Piedmont Geologic, P.C., February 3, 2023, January 2023 Groundwater Monitoring Report, TransMontaigne- Greensboro Terminal. Request to Abandon Site Monitoring and Remediation Wells TransMontaigne-Greensboro Terminal April 13, 2023 4 PIEDMONT GEOLOGIC, P.C. zones as referenced above (i.e., shallow saprolite, intermediate and deep saprolite, and bedrock), allowing for continued characterization of groundwater COC distributions with respect to depth, as warranted, as well as general confirmation of the consistently defined apparent groundwater flow directions delineated repeatedly through routine groundwater monitoring completed from the early-2000s through 2017. Five monitoring wells (MW-5, MW-9, MW-11, MW-56, and SME-9) are being retained for the sole purpose of early release detection (ERD) monitoring by TransMontaigne. Further groundwater monitoring for these wells is considered unnecessary. The proposed well abandonments will be completed by a North Carolina licensed well driller in accordance with 15A NCAC 2C. Following project execution and completion a well-abandonment report will be submitted to NCDEQ. The schedule for completion of the effort will be dependent upon timing of NCDEQ approval of this proposal, plus acquisition of project funding by TransMontaigne. As no such funding has been allocated for 2023, it may be necessary to delay the project until 2024. Once NCDEQ approval is received and project funding is established, TransMontaigne may choose to complete the project in phases, or in parts, over any time frame of its choosing. If completed in phases/parts, well abandonment reports will be submitted for each separate well-abandonment effort. With respect to ongoing monitoring-well permitting fees paid annually to Guilford County DHHS, TransMontaigne objects to such fees on the grounds that, as discussed above, there is no demonstrable need for continued site groundwater monitoring. Accordingly, TransMontaigne again requests a waiver of annual well- permitting fees moving forward, with the exception of monitoring-wells being voluntarily retained by TransMontaigne for ERD monitoring. If this request is denied, then fees for site monitoring-wells MW-57 through MW-60, which serve only to monitor encroachment of groundwater COCs onto the TransMontaigne property from the GNC Energy site to the east, should be the responsibility of the GNC Energy site responsible party, along with any continued monitoring of the wells. Professional certification for this letter is provided in Attachment 5. Should you have any questions or want additional information, please contact the undersigned at (919) 854-9700 or pdressel@piedmontgeologic.com. Sincerely, Peter J. Dressel Peter J. Dressel, P.G. Project Manager cc: Gene Mao, Guilford County DHHS Doug Hall, TransMontaigne Brett Forkner, NGL Energy Partners Attachments Request to Abandon Site Monitoring and Remediation Wells TransMontaigne-Greensboro Terminal April 13, 2023 PIEDMONT GEOLOGIC, P.C. ATTACHMENT 1 FIGURES FIGURE 1 SITE LOCATION MAP TRANSMONTAIGNE-GREENSBORO TERMINAL Groundwater monitoring well LEGEND SVE well Decommissioned groundwater monitoring or GWE / SVE well We s t M a r k e t S t r e e t ( U S 4 2 1 ) X X X XXXXXXXXXXXXXXXXXXXXXXXXXX X X X X X XXXX XXXXXXXXXXXXXXXXXXXXXXXtrack mw36 asphalt Warehouseconc.astastmh mh astmw9 mw11 channelmanifold mw13mw12 concrete mw21mw4 asphalt concrete drivewaymw41 mw42 mw28 mw26 mw2 mw25 sme8 mw34 aw6 aw7 mw33 mw8 driveway asphalt concrete pipes building mw27 track spur mw18 mw17 mw49 fence mw29 mw43 mw44 mw24b wal k mw5 drain pipe mw24a mw39 dike top drain officemw20a mw50 dike dike sme10 mw1 pipeline concrete mw22 mw23mw14 eop oe drain sme12 fence oe metal overhead eop eop oe mw30 mw31/ sme9 mw10 ast dike top oe AST mw15 mw16 drain oe fence ust oe flare unit ast oe disp. mw6 pumps oe oe oe oe fence spur oe oe fence curb curb railroad Merrit Trucking GWE-9 GWE-12 SVE1 SVE3 SVE4 SVE7 SVE2 SVE5 SVE8 GWE8 GWE4 GWE3 GWE7 GWE6 GWE5 GWE1 GWE2 mw51 mw47 mw45 mw46 mw48 dike top drain pipes drain pipe former tank car rack area tbm nail in pole assumed el. = 100.88' Richard's Auto Supply Quality Printing Former PCW tank tank 106 gasoline tank 105 gasoline tank 107 out of service tank 111 gasoline tank 112 ULSD tank 114 gasoline tank 113 gasoline tank 102 ULSD tank 101 ULSD tank 103 ethanol oil/water separator air eliminator area railroad track Stormwater Retention Pond spur track Air Sparging Well tank 104 AS-1 AS-4 AS-6(mw24b) GWE / SVE well - out of service SVE6 / SME13 mw35/ GWE-10 GWE11/ mw-19 SVE Building Compressor building Concrete slab 2 1701 PD 0 120 240 Scale (ft.) TransMontaigne Site Map 6801 W. Market St. Greensboro, N.C. PD PD PIEDMONT GEOLOGIC SMART EARTH SOLUTIONS 12/11/17 Fig 2.dwg mw55 mw56 mw52 mw53 mw54 SVE11 AS-7 mw60 mw57 mw58 mw59 AS-3 AS-8 SVE10 AS-5 AS-2 mw37 mw38 AS-5 AS-2 AS-3 mw37 mw56 mw55 AS-8 SVE10 AS-10 AS-9 Groundwater monitoring well Legend SVE well We s t M a r k e t S t r e e t ( U S 4 2 1 )XXXXXXXXXXXXXXXXXXXXXXXXXXXXX X X X X X XXXX XXXXXXXXXXXXXXXXXXXXXXXtrack asphalt Warehouseconc.astastmh mh astmanifoldconcrete asphalt drivewaydriveway asphalt concrete pipes track spur fence wal koffice dike dike concrete eop oe drain fence oe oe ast oe oe fence ust oe ast oe disp. oe oe oe fence spur oe oe curb curb railroad Merrit Trucking dike top Richard's Auto Supply Quality Printing tank 106 gasoline tank 105 gasoline tank 107 out of service tank 111 gasoline tank 112 ULSD tank 114 gasoline tank 113 gasoline tank 102 ULSD tank 101 ULSD tank 103 ethanol air eliminator area railroad track Stormwater Retention Pond Air Sparging Well tank 104 GWE / SVE well mw35 mw-19 3 2320 PD 0 120 240 Scale (ft.) TransMontaigne Site Map Showing Wells to Abandon vs. Retain 6801 W. Market St. Greensboro, N.C. PD PD 3/29/23 Fig 3.dwg mw57 mw58 mw59 AS-5 mw37 mw38 AS-2 mw37 AS-10 AS-9 Green highlight denotes monitoring well to retain Yellow highlight denotes monitoring well to abandon Red highlight denotes remediation well to abandon mw24b mw49 mw18 mw17 mw15 mw16 mw14 mw5 mw20a mw39 mw56 mw60 mw6 sme10 sme9mw24a mw50 mw47 mw41 mw45 mw46 mw36 mw28 mw27 mw2 mw25 mw10 SVE6 / SME13 sme8 mw1 mw34 mw12 mw8 mw11 mw9 mw23 mw21 mw22 mw4 mw48 mw52 mw53 mw54 mw55 GWE-12 SVE1 SVE2 GWE1 SVE3 AS-1 GWE2AS-3 SVE4 AS-4 AS-8 SVE11 SVE10 AS-7 GWE3 AS-5 SVE5 GWE8 GWE4 GWE5 GWE6 SVE7 mw51 We s t M a r k e t S t r e e t ( U S 4 2 1 )XXXXXXXXXXXXXXXXXXXXXXXXXXXXX X X X X X XXXX XXXXXXXXXXXXXXXXXXXXXXXtrack asphalt Warehouseconc.astastmh mh astmanifoldconcrete asphalt drivewaydriveway asphalt concrete pipes track spur fence wal koffice dike dike concrete eop oe drain fence oe oe ast oe oe fence ust oe ast oe oe oe oe fence spur oe oe curb curb railroad Merrit Trucking dike top Richard's Auto Supply Quality Printing tank 106 gasoline tank 105 gasoline tank 107 out of service tank 111 gasoline tank 112 ULSD tank 114 gasoline tank 113 gasoline tank 102 ULSD tank 101 ULSD tank 103 ethanol air eliminator area railroad track Stormwater Retention Pond tank 104 4 2320 PD 0 120 240 Scale (ft.) TransMontaigne Site Monitoring Wells to be Retained 6801 W. Market St. Greensboro, N.C. PD PD 2/20/23 Fig 4.dwg Site monitoring wells to be retained Legend Green highlight denotes shallow saprolite well Blue highlight denotes intermediate/deep saprolite well Red highlight denotes bedrock well mw57 mw58 mw59 mw24b mw49 mw18 mw17 mw14 mw5 mw20a mw39 mw56 mw60 mw6 sme9 mw24a mw50 mw11 mw9 MW-5, MW-56, and SME-9 are being retained solely for ERD monitoring by TransMontaigne mw15 mw16 mw48 mw51 Request to Abandon Site Monitoring and Remediation Wells TransMontaigne-Greensboro Terminal April 13, 2023 PIEDMONT GEOLOGIC, P.C. ATTACHMENT 2 TABLES TABLE 1 GROUNDWATER MONITORING AND REMEDIATION WELL CONSTRUCTION DETAILS TransMontaigne - Greensboro Terminal 6801 West Market Street Greensboro, North Carolina MONITORING WELLS Well Date Total Outer Casing Outer Casing Casing Well I.D.Screen TOC I.D.Installed Depth (1)Depth (1)I.D. (in.) (2)Stickup (3)(in.) (4)Interval (1)Elev. (5) MW-1 circa 1984 18 NA NA NA 4 unknown 97.50 MW-2 10/17/84 19 NA NA 1.55 4 5-19 97.74 MW-4 10/17/84 19 NA NA 1.45 4 5-19 91.32 MW-5 10/17/84 21 NA NA 1.20 4 7-21 86.71 MW-6 circa 1984 28 NA NA 1.98 4 unknown 100.25 MW-8 2/5/90 27 NA NA 1.80 2 12-27 101.60 MW-9 2/5/90 27 NA NA 2.05 2 12-27 95.20 MW-10 2/6/90 29 NA NA 1.35 2 9-24 98.40 MW-11 2/6/90 24 NA NA 1.95 2 9-24 93.95 MW-12 2/6/90 33 NA NA 2.05 2 18-33 96.07 MW-14 8/23/90 60 NA NA 2.85 2 45-60 91.40 MW-15 8/15/90 22 NA NA 2.05 2 10-22 87.93 MW-16 8/22/90 62 NA NA 2.05 2 46-62 87.16 MW-17 8/15/90 21 NA NA 1.75 2 11-21 86.69 MW-18 8/21/09 61 NA NA 2.00 2 46-61 87.58 MW-19 12/23/02 35 NA NA NA 4 20-35 99.22 MW-20A 9/13/96 60 50 60 2.55 2 57.5-60 88.48 MW-21 12/9/91 20 NA NA 1.95 2 5-20 87.85 MW-22 12/5/91 25 NA NA 2.05 2 17.5-25 88.30 MW-23 12/5/91 20 NA NA 1.90 2 5-20 88.56 MW-24A 12/4/91 59 NA NA 2.25 2 49-59 98.14 MW-24B 12/91 39 NA NA NA 2 36.5-39 NS MW-25 12/3/91 25 NA NA NA 2 5-25 96.81 MW-27 10/26/93 20 NA NA NA 2 10-20 97.45 MW-28 10/26/93 25 NA NA NA 2 15-25 99.74 MW-34 10/28/93 24 NA NA NA 2 13-23 103.17 MW-35 12/23/02 35 NA NA NA 4 20-35 99.71 MW-36 10/28/93 24 NA NA NA 2 19-24 99.62 MW-37 3/3/94 25 NA NA 3.35 2 10-25 96.05 MW-38 3/2/94 27 NA NA 3.85 2 12-27 96.40 MW-39 2/28/94 34 NA NA NA 2 14-34 96.32 MW-41 3/4/94 24 NA NA NA 1 4-24 101.12 MW-45 11/30/98 30 NA NA NA 2 15-30 96.91 MW-46 11/30/98 60 45 6 NA 2 55-60 97.04 MW-47 11/16/98 60 45 6 NA 2 55-60 102.05 MW-48 12/1/98 126 112 6 NA 2 121-126 97.37 MW-49 12/4/98 95 80 6 NA 2 90-95 83.43 MW-50 6/4/99 127 117 6 NA 2 122-127 97.25 MW-51 7/1/99 120 105 6 NA 2 115-120 88.01 MW-52 7/9/13 15 NA NA 2.50 2 5-15 NS MW-53 7/9/13 15 NA NA NA 2 5-15 NS MW-54 7/9/13 15 NA NA NA 2 5-15 NS MW-55 7/9/13 15 NA NA NA 2 5-15 NS MW-56 7/9/13 15 NA NA 2.50 2 5-15 NS MW-57 2/3/17 103 89 6 NA 6 89-103 (6)97.84 MW-58 2/2/17 82 NA NA NA 2 72-82 97.55 MW-59 2/3/17 60 NA NA NA 2 55-60 97.51 MW-60 2/3/17 20 NA NA NA 2 5-20 97.37 SME-8 circa 1985 22 NA NA NA 4 7-22 99.29 SME-9 circa 1985 23 NA NA NA 4 unknown 98.50 SME-10 circa 1985 20 NA NA NA 4 9-20 98.10 SME-13 circa 1985 20 NA NA NA 4 unknown NS shallow saprolite bedrock deep saprolite deep saprolite shallow saprolite shallow saprolite intermed. saprolite bedrock deep saprolite shallow saprolite Geologic Zone Monitored shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite deep saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite deep saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite deep saprolite deep saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite bedrock bedrock shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite interm. saprolite deep saprolite bedrock shallow saprolite shallow saprolite PIEDMONT GEOLOGIC, P.C Page 1 of 2 TABLE 1 (continued) GROUNDWATER MONITORING AND REMEDIATION WELL CONSTRUCTION DETAILS TransMontaigne - Greensboro Terminal 6801 West Market Street Greensboro, North Carolina SOIL VACUUM EXTRACTION WELLS Well Date Total Outer Casing Outer Casing Casing Well I.D.Screen TOC I.D.Installed Depth (1)Depth (1)I.D. (in.) (2)Stickup (3)(in.) (4)Interval (1)Elev. (5) SVE-1 2/26/01 18 NA NA NA 6 8-18 NS SVE-2 2/26/01 15 NA NA NA 2 5-15 NS SVE-3 2/26/01 15 NA NA NA 2 5-15 NS SVE-4 2/27/01 20 NA NA NA 6 5-20 NS SVE-5 3/1/01 20 NA NA NA 6 5-20 NS SVE-7 2/28/01 20 NA NA NA 6 5-20 NS SVE-9 2/27/01 20 NA NA NA 6 5-20 NS SVE-10 9/23/13 18 NA NA NA 2 3-18 NS SVE-11 9/23/13 18 NA NA NA 2 3-18 NS GWE-1 2/26/01 35 NA NA NA 6 5-35 NS GWE-2 2/26/01 35 NA NA NA 6 5-35 NS GWE-3 3/1/01 35 NA NA NA 6 5-35 NS GWE-4 2/27/01 35 NA NA NA 6 5-35 NS GWE-5 3/1/01 35 NA NA NA 6 5-35 NS GWE-6 3/1/01 35 NA NA NA 6 5-35 NS GWE-8 3/1/01 35 NA NA NA 6 5-35 NSGWE-12 9/13/04 25 NA NA NA 6 5-25 NS AIR SPARGING WELLS Well Date Total Outer Casing Outer Casing Casing Well I.D.Screen TOC I.D.Installed Depth (1)Depth (1)I.D. (in.) (2)Stickup (3)(in.) (4)Interval (1)Elev. (5) AS-1 10/5/09 45 NA NA NA 2 40-45 NS AS-2 4/29/11 40 NA NA NA 2 35-40 NS AS-3 4/29/11 35 NA NA NA 2 30-35 NS AS-4 4/28/11 40 NA NA NA 2 35-40 NS AS-5 4/28/11 43 NA NA NA 2 38-43 NS AS-7 9/23/13 35 NA NA NA 2 30-35 NS AS-8 9/24/13 35 NA NA NA 2 30-35 NS AS-9 6/5/17 30 NA NA NA 2 28-30 NSAS-10 6/5/17 30 NA NA NA 2 28-30 NS (1) Measured in feet below grade.(4) All wells constructed of Schedule 40 PVC.I.D. = Inside diameter. (2) All outer casings constructed of carbon steel.(5) Measured in feet relative to site datum.NA = Not applicable. (3) Feet of well casing stickup relative to grade.NS = Well not surveryed. unknown = Well log not available.TOC = Top of casing. shallow saprolite shallow saproliteshallow saprolite intermed. saprolite Geologic Zone Monitored shallow saprolite Monitored shallow saprolite shallow saprolite shallow saprolite intermed. saprolite intermed. saprolite intermed. saprolite intermed. saprolite shallow saprolite intermed. saprolite intermed. saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite Geologic Zone shallow saprolite PIEDMONT GEOLOGIC, P.C Page 2 of 2 TABLE 2 GROUNDWATER MONITORING AND REMEDIATION WELL CONSTRUCTION DETAILS WITH ABANDONMENT VS. RETENTION RATIONALE TransMontaigne - Greensboro Terminal 6801 West Market Street Greensboro, North Carolina MONITORING WELLS Well Total Casing Well I.D.Screen RETAIN OR I.D.Depth (1)Stickup (3)(in.) (4)Interval (1)ABANDON? MW-1 18 NA 4 unknown ABANDON No COCs detected >2L standards from 2008-2017 MW-2 19 1.55 4 5-19 ABANDON No COCs detected >2L standards from 2006-2017 MW-4 19 1.45 4 5-19 ABANDON No COCs detected >2L standards from 2011-2017 MW-5 21 1.20 4 7-21 RETAIN Retain for ERD monitoring MW-6 28 1.98 4 unknown RETAIN Retain well for multi-depth monitoring with MW-24a/24b MW-8 27 1.80 2 12-27 ABANDON No COCs detected >2L standards from 2004-2017 MW-9 27 2.05 2 12-27 RETAIN Retain for ERD monitoring MW-10 29 1.35 2 9-24 ABANDON No COCs detected >2L standards from 2009-2017 MW-11 24 1.95 2 9-24 RETAIN Retain for ERD monitoring MW-12 33 2.05 2 18-33 ABANDON Well is redundant to MW-39 MW-14 60 2.85 2 45-60 RETAIN Retain well for monitoring of deeper MTBE concentrations MW-15 22 2.05 2 10-22 RETAIN Retain for downgradient perimeter monitoring MW-16 62 2.05 2 46-62 RETAIN Retain for downgradient perimeter monitoring MW-17 21 1.75 2 11-21 RETAIN Retain for downgradient perimeter monitoring MW-18 61 2.00 2 46-61 RETAIN Retain for downgradient perimeter monitoring MW-19 35 NA 4 20-35 ABANDON Remove from railroad right of way MW-20A 60 2.55 2 57.5-60 RETAIN Retain well for monitoring of deeper MTBE concentrations MW-21 20 1.95 2 5-20 ABANDON Well is redundant to MW-5 MW-22 25 2.05 2 17.5-25 ABANDON Well is redundant to MW-5. Low historical COC detections MW-23 20 1.90 2 5-20 ABANDON No COCs detected >2L standards from 2015-2018 MW-24A 59 2.25 2 49-59 RETAIN Retain well for multi-depth monitoring with MW-6 and MW-24b MW-24B 39 NA 2 36.5-39 RETAIN Retain well for multi-depth monitoring with MW-6 and MW-24a MW-25 25 NA 2 5-25 ABANDON No COCs detected >2L standards from 1991-2017 MW-27 20 NA 2 10-20 ABANDON No COCs detected >2L standards from 2004-2017 MW-28 25 NA 2 15-25 ABANDON No COCs detected >2L standards from 1998-2017 MW-34 24 NA 2 13-23 ABANDON Well is redundant to MW-60 MW-35 35 NA 4 20-35 ABANDON Remove from railroad right of way MW-36 24 NA 2 19-24 ABANDON Remove from railroad right of way. Low historical COC detections MW-37 25 3.35 2 10-25 ABANDON Well is redundant to MW-39 MW-38 27 3.85 2 12-27 ABANDON Well is redundant to MW- . No COCs detected in Jan. 2023 MW-39 34 NA 2 14-34 RETAIN Historical high COC concentrations MW-41 24 NA 1 4-24 ABANDON No COCs detected >2L standards from 1998-2017 MW-45 30 NA 2 15-30 ABANDON No COCs detected >2L standards from 1998-2017 MW-46 60 NA 2 55-60 ABANDON No COCs detected >2L standards from 2008-2017 MW-47 60 NA 2 55-60 ABANDON No COCs detected >2L standards from 2004-2017 MW-48 126 NA 2 121-126 RETAIN Retain as offsite control point RATIONALE intermed. saprolite deep saprolite shallow saprolite shallow saprolite bedrock deep saprolite deep saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite Geologic Zone Monitored shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite deep saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite deep saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite deep saprolite deep saprolite shallow saprolite shallow saprolite shallow saprolite PIEDMONT GEOLOGIC, P.C Page 1 of 3 TABLE 2 GROUNDWATER MONITORING AND REMEDIATION WELL CONSTRUCTION DETAILS WITH ABANDONMENT VS. RETENTION RATIONALE TransMontaigne - Greensboro Terminal 6801 West Market Street MONITORING WELLS Well Total Casing Well I.D.Screen RETAIN OR I.D.Depth (1)Stickup (3)(in.) (4)Interval (1)ABANDON? MW-49 95 NA 2 90-95 RETAIN Retain for downgradient perimeter monitoring MW-50 127 NA 2 122-127 RETAIN Retain for perimeter bedrock aquifer monitoring MW-51 120 NA 2 115-120 RETAIN Retain as offsite control point MW-52 15 2.50 2 5-15 ABANDON Well is redundant to MW-56. Only low COC conc. historically detected MW-53 15 NA 2 5-15 ABANDON Well is redundant to MT-56. No COCs historically detected MW-54 15 NA 2 5-15 ABANDON Well is redundant to MT-56. No COCs historically detected MW-55 15 NA 2 5-15 ABANDON Well is redundant to MW-56. Only low COC conc. historically detected MW-56 15 2.50 2 5-15 RETAIN Retain for ERD monitoring MW-57 103 NA 6 89-103 (6)RETAIN Retain to monitoring encroaching COCs from upgradient property MW-58 82 NA 2 72-82 RETAIN Retain to monitoring encroaching COCs from upgradient property MW-59 60 NA 2 55-60 RETAIN Retain to monitoring encroaching COCs from upgradient property MW-60 20 NA 2 5-20 RETAIN Retain to monitoring encroaching COCs from upgradient property SME-8 22 NA 4 7-22 ABANDON Well is redundant to SME-9. Only low COC conc. in most-recent samples SME-9 23 NA 4 unknown RETAIN Retain for ERD monitoring SME-10 20 NA 4 9-20 ABANDON Well is redundant to MW-6. Only low COC conc. in final samples SME-13 20 NA 4 unknown ABANDON Well not used historicall for monitoring and is redundant to SME-9 GROUNDWATER EXTRACTION/SOIL VAPOR EXTRACTION WELLS Well Total Casing Well I.D.Screen RETAIN OR I.D.Depth (1)Stickup (3)(in.) (4)Interval (1)ABANDON? SVE-1 18 NA 6 8-18 ABANDON Remediation well not used historically for groundwater monitoring SVE-2 15 NA 2 5-15 ABANDON Remediation well not used historically for groundwater monitoring SVE-3 15 NA 2 5-15 ABANDON Remediation well not used historically for groundwater monitoring SVE-4 20 NA 6 5-20 ABANDON Remediation well not used historically for groundwater monitoring SVE-5 20 NA 6 5-20 ABANDON Remediation well not used historically for groundwater monitoring SVE-7 20 NA 6 5-20 ABANDON Remediation well not used historically for groundwater monitoring SVE-9 20 NA 6 5-20 ABANDON Remediation well not used historically for groundwater monitoring SVE-10 18 NA 2 3-18 ABANDON Remediation well not used historically for groundwater monitoring SVE-11 18 NA 2 3-18 ABANDON Remediation well not used historically for groundwater monitoring GWE-1 35 NA 6 5-35 ABANDON Remediation well not used historically for groundwater monitoring GWE-2 35 NA 6 5-35 ABANDON Remediation well not used historically for groundwater monitoring GWE-3 35 NA 6 5-35 ABANDON Remediation well not used historically for groundwater monitoring GWE-4 35 NA 6 5-35 ABANDON Remediation well not used historically for groundwater monitoring GWE-5 35 NA 6 5-35 ABANDON Remediation well not used historically for groundwater monitoring GWE-6 35 NA 6 5-35 ABANDON Remediation well not used historically for groundwater monitoring GWE-8 35 NA 6 5-35 ABANDON Remediation well not used historically for groundwater monitoring GWE-12 25 NA 6 5-25 ABANDON Remediation well not used historically for groundwater monitoring RATIONALE FOR WELL ABANDONMENT Geologic Zone RATIONALE FOR WELL ABANDONMENTMonitored shallow saprolite Greensboro, North Carolina shallow saprolite shallow saprolite Geologic Zone shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite Monitored shallow saprolite shallow saprolite bedrock shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite bedrock bedrock shallow saprolite shallow saprolite shallow saprolite shallow saprolite shallow saprolite interm. saprolite deep saprolite bedrock shallow saprolite PIEDMONT GEOLOGIC, P.C Page 2 of 3 TABLE 2 GROUNDWATER MONITORING AND REMEDIATION WELL CONSTRUCTION DETAILS WITH ABANDONMENT VS. RETENTION RATIONALE TransMontaigne - Greensboro Terminal 6801 West Market Street Greensboro, North Carolina AIR SPARGING WELLS Well Total Casing Well I.D.Screen RETAIN OR I.D.Depth (1)Stickup (3)(in.) (4)Interval (1)ABANDON? AS-1 45 NA 2 40-45 ABANDON Remediation well not used historically for groundwater monitoring AS-2 40 NA 2 35-40 ABANDON Remediation well not used historically for groundwater monitoring AS-3 35 NA 2 30-35 ABANDON Remediation well not used historically for groundwater monitoring AS-4 40 NA 2 35-40 ABANDON Remediation well not used historically for groundwater monitoring AS-5 43 NA 2 38-43 ABANDON Remediation well not used historically for groundwater monitoring AS-7 35 NA 2 30-35 ABANDON Remediation well not used historically for groundwater monitoring AS-8 35 NA 2 30-35 ABANDON Remediation well not used historically for groundwater monitoring AS-9 30 NA 2 28-30 ABANDON Remediation well not used historically for groundwater monitoringAS-10 30 NA 2 28-30 ABANDON Remediation well not used historically for groundwater monitoring (1) Measured in feet below grade.I.D. = Inside diameter. (2) All outer casings constructed of carbon steel.NA = Not applicable. (3) Feet of well casing stickup relative to grade.TOC = Top of casing. RATIONALE FOR WELL ABANDONMENT shallow saprolite intermed. saprolite intermed. saprolite intermed. saprolite intermed. saprolite intermed. saprolite intermed. saprolite shallow saprolite intermed. saprolite Geologic Zone Monitored PIEDMONT GEOLOGIC, P.C Page 3 of 3 TABLE 3 GROUNDWATER MONITORING WELLS TO BE RETAINED TransMontaigne - Greensboro Terminal 6801 West Market Street Greensboro, North Carolina Well Date Total Outer Casing Outer Casing Casing Well I.D.Screen TOC I.D.Installed Depth (1)Depth (1)I.D. (in.) (2)Stickup (3)(in.) (4)Interval (1)Elev. (5) MW-5 10/17/84 21 NA NA 1.20 4 7-21 86.71 MW-6 circa 1984 28 NA NA 1.98 4 unknown 100.25 MW-9 2/5/90 27 NA NA 2.05 2 12-27 95.20 MW-11 2/6/90 24 NA NA 1.95 2 9-24 93.95 MW-14 8/23/90 60 NA NA 2.85 2 45-60 91.40 MW-15 8/15/90 22 NA NA 2.05 2 10-22 87.93 MW-16 8/22/90 62 NA NA 2.05 2 46-62 87.16 MW-17 8/15/90 21 NA NA 1.75 2 11-21 86.69 MW-18 8/21/09 61 NA NA 2.00 2 46-61 87.58 MW-20A 9/13/96 60 50 60 2.55 2 57.5-60 88.48 MW-24A 12/4/91 59 NA NA 2.25 2 49-59 98.14 MW-24B 12/91 39 NA NA NA 2 36.5-39 NS MW-39 2/28/94 34 NA NA NA 2 14-34 96.32 MW-48 12/1/98 126 112 6 NA 2 121-126 97.37 MW-49 12/4/98 95 80 6 NA 2 90-95 83.43 MW-50 6/4/99 127 117 6 NA 2 122-127 97.25 MW-51 7/1/99 120 105 6 NA 2 115-120 88.01 MW-56 7/9/13 15 NA NA 2.50 2 5-15 NS MW-57 2/3/17 103 89 6 NA 6 89-103 (6)97.84 MW-58 2/2/17 82 NA NA NA 2 72-82 97.55 MW-59 2/3/17 60 NA NA NA 2 55-60 97.51 MW-60 2/3/17 20 NA NA NA 2 5-20 97.37 SME-9 circa 1985 23 NA NA NA 4 unknown 98.50 (1) Measured in feet below grade.I.D. = Inside diameter. (2) All outer casings constructed of carbon steel.TOC = Top of casing. (3) Feet of well casing stickup relative to grade.NA = Not applicable. (4) All wells constructed of Schedule 40 PVC.NS = Well not surveryed. (5) Measured in feet relative to site datum. intermed. saprolite shallow saprolite deep saprolite deep saprolite shallow saprolite deep saprolite deep saprolite shallow saprolite deep saprolite shallow saprolite shallow saprolite Geologic Zone Monitored shallow saprolite shallow saprolite bedrock bedrock shallow saprolite bedrock shallow saprolite shallow saprolite interm. saprolite deep saprolite bedrock bedrock PIEDMONT GEOLOGIC, P.C Page 1 of 1 Request to Abandon Site Monitoring and Remediation Wells TransMontaigne-Greensboro Terminal April 13, 2023 PIEDMONT GEOLOGIC, P.C. ATTACHMENT 3 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-1 3/8/94 2,300 520 1,300 3,400 7,200 NA NA 10/18/94 1,900 340 830 2,300 7,900 NA ND 2/20/98 1,100 240 660 1,400 1,000 <10 130 7/8/98 1,300 <500 850 1,700 1,700 <100 <500 10/7/98 500 280 430 640 330 <10 150 10/28/99 960 <500 840 1,500 <500 <100 1,300 3/1/04 3.1 1.7 8.1 11.8 90.2 <2.0 <2.0 2/23/05 4.2 2.2 36.1 22.7 33.5 <1.0 15.2 2/8/06 7.3 18.7 330 40.9 <5.0 <5.0 304 2/26/07 <1.0 <5.0 12 <3.0 <1.0 <1.0 32 5/30/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 1.4 5/28/09 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 1.1 6/1/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 7/12/11 <1.0 <1.0 <1.0 <2.0 1.4 <1.0 <1.0 5/29/12 <1.0 <1.0 <1.0 <2.0 2.9 <1.0 <1.0 5/9/13 <1.0 <5.0 <1.0 <3.0 5.0 <1.0 <5.0 4/24/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 1.8 5/8/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/31/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <0.34 3/8/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0MW-2 3/10/90 <1 <1 <1 <5 NA NA <10 8/30/90 2 2 0.7 3 NA NA NA 12/12/90 <1 <1 <1 <1 NA NA NA 3/8/94 ND ND 4.8 ND ND NA NA 10/12/94 ND ND ND ND ND NA ND 2/20/98 1 <5 <1 <2 <5 <1 <10 1/22/99 <1 <5 <1 <2 <5 <1 NA 1/6/00 <1.0 <5.0 <1.0 <2.0 <5.0 <1.0 <5.0 1/10/01 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 1/9/02 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 2/6/03 8.2 1.5 7.6 9.3 3.6 <0.50 1.4 2/20/04 <1.0 <2.0 <2.0 <6.0 1.0 <2.0 <2.0 2/18/05 <1.0 <1.0 <1.0 <3.0 33.5 <1.0 15.2 2/6/06 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 2/26/07 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 5/29/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <1.0 5/29/09 <1.0 <1.0 <1.0 <2.0 1.1 <1.0 <1.0 5/25/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 7/12/11 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/30/12 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/8/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 4/23/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/6/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/31/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <0.343/8/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-4 3/10/90 <1 <1 <1 <5 NA NA <10 12/13/90 <1 <1 <1 <5 NA NA NA 3/7/94 ND ND ND ND ND NA NA 10/12/94 ND ND ND ND ND NA ND 2/20/98 <1 <5 <1 <2 <5 <1 <10 1/26/99 <1 <5 <1 <2 <5 <1 NA 1/10/00 <1.0 <5.0 <1.0 <2.0 <5.0 <1.0 <5.0 1/11/01 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 1/9/02 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 PIEDMONT GEOLOGIC, P.C.Page 1 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-4 2/6/03 23.1 3.0 16.4 21.4 <0.50 <0.50 3.7 2/20/04 <1.0 <2.0 <2.0 <6.0 <2.0 <2.0 <2.0 2/23/05 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 2/6/06 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 3/1/07 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 6/4/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <1.0 6/3/09 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 6/3/10 1.1 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 7/18/11 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/30/12 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/9/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 4/22/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/6/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/31/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <0.34 3/8/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0MW-5 3/10/90 86 <1 3 <5 NA NA <10 12/13/91 140 <10 <10 20 NA NA 20 3/7/94 100 2.8 42 65 1,700 NA NA 10/12/94 100 ND ND ND 9,200 NA ND 2/20/98 46 <5 28 2 12,000 7 <10 1/27/99 110 <50 34 23 15,000 12 NA 4/7/99 85 <50 24 <20 18,000 11 <50 7/20/99 55 <5 25 <2 14,000 13 <5 10/28/99 63 <5 26 2 19,000 11 6 1/7/00 57 <50 <10 <20 20,000 <10 <50 4/12/00 41.6 <20.0 26.6 <20.0 18,600 <20.0 <20.0 7/18/00 <0.500 <0.500 10.3 2.25 7,180 5.68 1.660 10/10/00 64.6 <10.0 61.0 <10.0 24,000 <10.0 NA 1/10/01 26.6 16.0 43.5 25.5 16,100 <10.0 <10.0 4/3/01 <200 <200 <200 <200 7,000 <200 NA 7/3/01 <250 <250 <250 <250 10,000 <250 <500 10/11/01 <250 <250 <250 <250 33,000 <250 NA 1/10/02 <250 <250 <250 <250 19,000 <250 <500 5/14/02 22 2.8 13 5.1 21,000 4.3 20 9/5/02 <500 <500 <500 <1,000 17,000 <500 <1,000 12/17/02 22 <50 19 <20 11,000 <10 <50 2/12/03 13.5 0.99 7.9 1.7 3,140 0.74 2.6 2/23/04 57.9 <200 53.9 <600 27,400 <200 <200 5/11/04 <500 <1,000 <1,000 <3,000 47,200 <1,000 <1,000 8/4/04 <20 <40 16.1 21.2 6,560 <40 <40 12/2/04 <500 488 <1,000 <3,000 12,000 <1,000 <1,000 2/23/05 <250 <250 <250 <750 17,300 <250 <500 8/3/05 <100 <100 <100 <300 6,250 <100 <200 2/8/06 5.6 <1.0 4.7 <3.0 4,510 4.6 1.8 8/3/06 37 <100 <20 <60 3,800 <20 <100 2/28/07 6.7 <5.0 <2.0 <3.0 2,400 3.1 <5.0 8/7/07 <1.0 <5.0 1.7 <3.0 1,100 2.7 <5.0 6/4/08 <10.0 <10.0 <10.0 <30.0 1,080 <10.0 <10.0 12/18/08 5.0 <5.0 <5.0 <10.0 821 7.4 <5.0 6/2/09 <5.0 <5.0 <5.0 <10.0 650 <5.0 8.2 11/3/09 44.1 <5.0 <5.0 <10.0 534 10.5 <5.0 6/3/10 19.1 <5.0 <5.0 <10.0 397 11.3 <5.0 11/23/10 60.3 <2.0 <2.0 <4.0 229 6.8 <2.0 7/19/11 2.9 <2.0 <2.0 <4.0 159 3.2 <2.0 PIEDMONT GEOLOGIC, P.C.Page 2 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-5 5/31/12 6.7 <1.0 <1.0 <2.0 179 6.5 <1.0 5/10/13 12 <5.0 2.1 <3.0 220 11 <5.0 4/29/14 6.2 <1.0 2.0 <2.0 452 5.7 <1.0 5/8/15 13.9 <1.0 1.1 4.5 404 1.9 <1.0 6/1/16 25.9 <10.0 <10.0 <10.0 1,490 11.9 <0.34 3/9/17 <10.0 <10.0 <10.0 <10.0 1,610 11.8 <10.0 10/20/18 5.72 3.10 <1.00 <3.00 681 <1.00 <5.001/30/23 42.0 7,560 1,910 11,400 255 <10.0 141 MW-6 3/10/90 5,700 1,200 1,400 2,800 NA NA 340 12/12/91 5,900 350 1,300 1,800 NA NA 410 3/8/94 4,500 210 1,200 1,300 2,700 NA NA 10/17/94 3,700 140 990 1,200 2,700 NA 420 2/20/98 3,800 <500 1,300 1,100 740 <100 220 7/8/98 3,200 <500 1,300 1,000 810 <100 <500 10/7/98 4,000 <500 1,200 720 1,200 <100 <500 1/27/99 3,200 81 900 730 570 <10 180 4/9/99 4,600 <500 1,400 1,000 1,200 <100 720 7/21/99 3,800 73 1,600 980 970 <10 490 10/28/99 5,800 <500 1,800 1,300 1,100 <100 <500 1/7/00 4,600 <500 1,300 810 780 <100 <500 4/13/00 3,610 43.4 976 647 560 <5.00 5.86 7/19/00 2,920 79.2 659 528 502 <5.00 <5.00 10/11/00 3,450 25.2 1,040 498 662 <10.0 NA 1/11/01 4,210 66.9 2,280 1,260 787 <40.0 687 4/4/01 3,700 <100 1,400 750 610 <100 NA 7/3/01 3,800 <100 1,500 650 290 <100 390 10/11/01 3,800 <100 1,700 740 490 <100 NA 1/10/02 3,600 <100 1,600 710 380 <100 370 5/14/02 3,200 <100 1,400 580 430 <100 540 9/5/02 2,900 <100 1,400 680 200 <100 440 12/17/02 770 <25 430 210 92 <5.0 140 2/12/03 1,710 21.9 1,380 689 79.0 <5.0 334 2/24/04 518 9.8 620 253 48.4 <20 158 8/3/04 469 11.0 646 385 55.3 <10 273 12/2/04 657 8.8 852 324 69.8 <20 264 2/23/05 575 <100 723 258 62.8 <10 292 8/1/05 367 <10 543 251 40.9 <10 261 2/16/06 535 <20 701 126 61.0 <20 230 8/3/06 300 <50 750 180 45 <10 260 2/26/07 250 <50 750 230 38 <10 280 8/7/07 120 <50 550 160 31 <10 250 6/5/08 96.9 <5.0 435 105 20.9 <5.0 150 6/4/09 106 <5.0 772 222 13.2 <5.0 280 11/30/09 59 8.6 67.3 62.8 56 1.1 39.9 1/11/10 95 9.4 250 160 56 1.7 75 3/8/10 60 <25 140 81 60 <5.0 74 6/4/10 75.0 <5.0 251 156 95.2 <5.0 120 7/19/11 26.0 <5.0 103 31.6 221 <5.0 44.1 1/12/12 58.7 <2.0 292 131 316 <2.0 176 6/1/12 35.8 <2.0 127 28.8 426 <2.0 70.4 12/28/12 38.7 <4.0 145 23.9 370 <4.0 160 5/10/13 9.8 <5.0 30 14 200 <1.0 45 11/12/13 12.5 <2.0 20.3 7.1 318 <2.0 41.0 4/23/14 4.6 <2.0 24.1 7.1 130 <2.0 92.6 PIEDMONT GEOLOGIC, P.C.Page 3 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-6 10/14/14 8.3 <1.0 25.5 5.7 184 <1.0 105 5/7/15 2.3 <2.0 6.7 4.5 136 <1.0 9.7 11/24/15 2.4 <0.26 15.1 4.2 113 <0.24 <1.5 5/31/16 2.3 <1.0 18.2 4.0 89.5 <1.0 6.1 10/25/16 3.0 <1.0 20.1 4.9 68.8 <1.0 25.3 3/10/17 4.4 1.5 22.5 5.6 105 <1.0 79.5MW-8 3/16/90 <1 <1 <1 <5 NA NA <10 8/30/90 1 2 0.7 3 NA NA NA 12/12/90 <1 3 <1 1 NA NA NA 3/8/94 ND ND ND ND ND NA NA 10/11/94 ND ND ND ND ND NA ND 2/20/98 <1 <5 <1 <2 <5 <1 <10 1/22/99 <1 <5 <1 <2 <5 <1 NA 1/6/00 <1.0 <5.0 <1.0 <2.0 <5.0 <1.0 <5.0 1/10/01 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 1/10/02 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 2/7/03 1.6 0.60 2.2 3.0 <0.50 <0.50 <1.0 2/20/04 <1.0 <2.0 <2.0 <6.0 <2.0 <2.0 <2.0 2/18/05 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 2/7/06 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 2/27/07 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 5/28/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <1.0 5/27/09 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/25/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 7/12/11 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 7/12/11 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/24/12 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/6/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 4/22/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/6/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/25/16 <1.0 <1.0 <1.0 <2.0 3.8 <1.0 <1.53/8/17 <1.0 <1.0 <1.0 <1.0 1.5 <1.0 <1.0 MW-9 3/10/90 <1 <1 <1 <5 NA NA <10 8/30/90 1 2 1 5 NA NA NA 12/12/91 <1 <1 <1 <1 NA NA NA 3/8/94 ND ND ND ND ND NA NA 10/12/94 ND ND ND ND 1 NA ND 2/23/98 6 <5 <1 4 21 <1 <10 1/26/99 3 <5 <1 <2 21 <1 NA 3/1/04 87.4 1.3 <2.0 25.8 70.0 <2.0 5.0 6/4/04 126 1.8 <2.0 45.8 92.4 <2.0 12.5 8/3/04 98.1 0.57 0.98 42.9 75.1 <2.0 11.6 12/2/04 90.4 1.2 <4.0 38.6 74.7 <4.0 9.8 2/18/05 100 <1.0 <1.0 41.0 64.3 <1.0 8.9 8/2/05 115 <1.0 <1.0 53.4 86.0 <1.0 14.7 2/7/06 96.1 <1.0 <1.0 41.3 84.5 <1.0 11.0 8/3/06 84 <5.0 16 61 76 <1.0 18 2/27/07 97 <5.0 <1.0 39 64 <1.0 12 8/7/07 130 <100 <20 <60 63 <20 <100 5/29/08 126 <1.0 <1.0 61.7 116 <1.0 18.1 5/28/09 161 <1.0 <1.0 68.9 133 1.0 18.5 11/2/09 197 0.91 0.46 65.4 127 0.66 22.8 5/25/10 118 <1.0 <1.0 43.2 60.8 <1.0 14.6 7/14/11 77.1 <1.0 <1.0 22.3 47.9 <1.0 9.6 PIEDMONT GEOLOGIC, P.C.Page 4 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-9 1/10/12 68.4 <1.0 <1.0 21.5 45.3 <1.0 12.2 5/24/12 44.0 <1.0 <1.0 13.1 43.1 <1.0 6.6 12/27/12 22.3 <1.0 <1.0 7.3 33.0 <1.0 2.2 5/8/13 18 <5.0 <1.0 5.6 40 <1.0 5.6 11/12/13 10.8 <1.0 <1.0 4.3 26.2 <1.0 3.8 4/22/14 6.9 <1.0 <1.0 3.0 22.2 <1.0 3.4 10/14/14 3.0 <1.0 <1.0 <2.0 15.7 <1.0 1.4 5/6/15 1.7 <1.0 <1.0 <2.0 15.1 <1.0 <1.0 11/24/15 1.2 <0.26 <0.30 <0.69 15.4 <0.24 <1.5 5/25/16 <1.0 <1.0 <1.0 <2.0 10.6 <1.0 <1.5 10/25/16 <1.0 <1.0 <1.0 <1.0 10.0 <1.0 <1.5 3/8/17 <1.0 <1.0 <1.0 <1.0 15.5 <1.0 <1.0 1/17/23 <1.00 <1.00 <1.00 <3.00 9.48 <1.00 <5.00MW-10 3/16/90 3 7 <1 40 NA NA <10 12/12/91 1 <1 1 50 NA NA <10 3/8/94 0.7 ND ND 24 12 NA NA 10/12/94 2 ND 1 49 12 NA 12 2/24/98 2 <5 1 95 <5 <1 <10 1/27/99 1 <5 3 45 <5 <1 NA 1/7/00 1.9 <5.0 1.1 63 <5.0 <1.0 12 1/10/01 10.5 <0.500 7.56 317 2.41 <0.500 98.4 1/10/02 3.8 <1.0 1.6 159 <1.0 <1.0 <2.0 2/7/03 2.2 0.60 1.9 8.9 <0.50 <0.50 2.9 2/20/04 <1.0 <2.0 <2.0 26.1 <2.0 <2.0 9.0 2/18/05 <1.0 <1.0 2.3 52.4 <1.0 <1.0 22.4 2/6/06 <1.0 <1.0 2.9 42.7 <1.0 <1.0 22.5 2/26/07 <1.0 <5.0 <1.0 19 <1.0 <1.0 7 5/28/08 <1.0 <1.0 1.5 36.9 <1.0 <1.0 11.5 5/28/09 <1.0 <1.0 <1.0 2.7 <1.0 <1.0 1.5 5/25/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 1.6 7/12/11 <1.0 <1.0 <1.0 3.7 <1.0 <1.0 2.9 5/25/12 <1.0 <1.0 <1.0 5.3 <1.0 <1.0 4.3 5/8/13 <1.0 <5.0 <1.0 4.5 <1.0 <1.0 <5.0 4/22/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 1.1 5/6/15 <1.0 <1.0 <1.0 2.4 <1.0 <1.0 1.8 5/24/16 <1.0 <1.0 <1.0 2.1 <1.0 <1.0 <1.53/8/17 <1.0 <1.0 <1.0 3.9 <1.0 <1.0 4.1 MW-11 3/10/90 <1 <1 <1 <5 NA NA <10 8/30/90 <0.5 0.6 <0.5 <2 NA NA NA 12/12/91 <1 <1 <1 <1 NA NA NA 3/8/94 ND ND ND ND 1.4 NA NA 10/12/94 ND ND ND ND 1 NA ND 2/23/98 <1 <5 <1 <2 <5 <1 <10 1/26/99 <1 <5 <1 <2 <5 <1 NA 1/7/00 <1.0 <5.0 <1.0 <2.0 <5.0 <1.0 <5.0 1/11/01 <0.500 <0.500 <0.500 0.569 <0.500 <0.500 2.55 1/10/02 <1.0 <1.0 <1.0 <1.0 2.5 <1.0 <2.0 2/7/03 2.5 0.77 2.4 2.9 1.7 <0.50 <1.0 2/20/04 <1.0 <2.0 <2.0 <6.0 6.4 <2.0 <2.0 2/18/05 <1.0 <1.0 <1.0 <3.0 8.5 <1.0 <2.0 2/7/06 <1.0 <1.0 <1.0 <3.0 13.3 <1.0 <2.0 2/27/07 <1.0 <5.0 <1.0 <3.0 7.9 <1.0 <5.0 5/29/08 <1.0 <1.0 <1.0 <3.0 13.2 <1.0 <1.0 5/28/09 <1.0 <1.0 <1.0 <2.0 13.2 <1.0 <1.0 PIEDMONT GEOLOGIC, P.C.Page 5 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-11 5/25/10 <1.0 <1.0 <1.0 <2.0 9.3 <1.0 1.0 7/13/11 <1.0 <1.0 <1.0 <2.0 13.9 <1.0 1.0 5/25/12 <1.0 <1.0 <1.0 <2.0 13.7 <1.0 1.0 5/9/13 <1.0 <5.0 <1.0 <3.0 8.0 <1.0 <5.0 4/23/14 <1.0 <1.0 <1.0 <2.0 3.9 <1.0 <1.0 5/6/15 <1.0 <1.0 <1.0 <2.0 2.4 <1.0 <1.0 5/25/16 <1.0 <1.0 <1.0 <2.0 3.7 <1.0 <1.53/8/17 <1.0 <1.0 <1.0 <1.0 1.3 <1.0 <1.0 MW-12 3/10/90 14,000 24,000 2,000 10,000 NA NA 380 12/13/91 17,000 22,000 2,000 10,000 NA NA 430 3/8/94 14,000 26,000 2,000 9,800 ND NA 340 10/12/94 12,000 23,000 1,700 9,400 ND NA 540 2/20/98 12,000 27,000 2,200 10,000 <500 <100 380 7/8/98 8,900 27,000 2,200 10,000 <400 <80 1,100 10/7/98 9,900 25,000 2,400 11,000 <500 <100 760 1/21/99 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 4/5/99 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 7/19/99 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 10/25/99 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 4/13/00 11,800 39,400 3,040 18,000 56.3 <50.0 <50.0 7/19/00 6,750 18,000 1,860 8,780 <10.0 <10.0 <10.0 10/11/00 13,400 50,800 5,510 29,000 647 <100 NA 1/15/01 10,100 42,300 5,060 25,600 <40.0 <40.0 1,260 4/4/01 7,100 28,000 2,400 12,300 <1,000 <1,000 NA 7/3/01 5,300 26,000 2,500 11,800 <250 <250 600 10/11/01 3,700 18,000 2,200 11,300 <500 <500 NA 1/10/02 3,700 11,000 1,700 8,300 <500 <500 <1,000 5/14/02 3,400 8,300 1,300 5,700 3,800 <500 <1,000 9/5/02 1,700 5,500 980 5,000 <200 <200 <400 12/17/02 130 710 160 800 31 <5.0 71 2/12/03 1,440 5,550 881 4,570 137 <5.0 552 2/24/04 941 6,730 659 5,030 5,440 <200 535 2/23/05 535 6,980 1,090 7,970 7,440 <100 1,100 2/8/06 273 5,920 1,720 10,400 7,080 <50 1,010 3/1/07 63 1,800 850 7,600 3,300 <50 730 5/30/08 21 439 495 3,860 1,040 <20.0 370 12/18/08 25.4 438 399 3,970 1,020 <10.0 868 5/28/09 42.0 743 301 4,860 1,670 <10.0 746 11/2/09 169 1,490 619 7,050 3,840 <20.0 787 6/1/10 292 2,760 1,330 9,230 8,910 <20.0 839 11/22/10 104 3,930 1,150 10,300 8,700 <50.0 817 7/14/11 143 4,470 1,350 10,800 9,670 <50.0 850 1/10/12 147 4,310 1,680 12,000 10,700 <50.0 1,080 5/29/12 <50.0 2,250 1,220 10,700 3,750 <50.0 957 12/27/12 <50.0 2,290 1,250 11,000 3,270 <50.0 1,090 5/14/13 <100 1,300 990 10,000 1,800 <100 760 11/12/13 <25.0 243 497 4,870 199 <25.0 595 4/24/14 <20.0 625 820 9,310 435 <20.0 1,350 10/14/14 27.9 450 636 6,400 255 <25.0 1,120 5/8/15 <20.0 472 777 8,530 179 <20.0 1,310 11/24/15 9.6 255 594 6,690 79.5 <7.5 97.1 6/1/16 <20.0 312 587 6,520 107 <20.0 754 10/25/16 <20.0 165 425 5,210 55.3 <20.0 582 3/10/17 26.0 597 495 5,420 154 <20.0 1,260 PIEDMONT GEOLOGIC, P.C.Page 6 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-12 10/20/18 7.46 112 606 7,810 23.6 <1.00 1,330MW-14 8/30/90 0.6 2 0.6 3 NA NA NA 12/13/91 <1 <1 <1 <1 NA NA NA 3/7/94 ND ND ND ND ND NA NA 10/12/94 ND ND ND ND ND NA ND 2/20/98 2 <5 1 4 <5 2 <10 7/8/98 <1 <5 <1 <2 <5 <1 <5 10/6/98 1 <5 <1 <2 <5 2 <5 1/26/99 2 <5 <1 3 <5 2 NA 4/7/99 2 <5 <1 <2 <5 2 <5 7/20/99 2 <5 <1 <2 <5 3 <5 10/27/99 1 <5 <1 <2 <5 3 <5 1/10/00 1.9 <5.0 <1.0 <2.0 <5.0 2.8 <5.0 4/12/00 1.09 <0.500 <0.500 <0.500 <0.500 2.28 <0.500 7/18/00 4.50 <0.500 0.620 7.30 <0.500 2.11 <0.500 10/10/00 3.50 <0.500 <0.500 <0.500 <0.500 2.70 NA 1/10/01 0.964 <0.500 0.726 <0.500 <0.500 2.52 1.74 4/3/01 18 <1.0 <1.0 2.8 2.7 4.3 NA 1/9/02 <1.0 <1.0 <1.0 <1.0 1.9 2.6 <2.0 2/6/03 3.2 0.71 <0.70 <1.0 11.2 4.0 <1.0 2/25/04 2.1 <2.0 <2.0 <6.0 17.0 3.5 <2.0 5/11/04 4.2 <2.0 <2.0 <6.0 10.5 3.2 <2.0 8/4/04 4.5 <2.0 <2.0 <6.0 15.5 3.4 <2.0 12/2/04 1.8 <2.0 <2.0 <6.0 18.6 3.3 <2.0 2/18/05 3.4 <1.0 <1.0 <3.0 17.5 2.8 <2.0 8/1/05 2.6 <1.0 <1.0 <3.0 31.4 4.0 <2.0 2/17/06 0.78 <1.0 2.4 <3.0 25.9 3.7 <2.0 2/28/07 5.3 <5.0 1.2 4.0 37 2.9 <5.0 6/3/08 2.6 <1.0 <1.0 <3.0 48.8 3.1 <1.0 6/3/09 4.6 <1.0 <1.0 <2.0 79.9 4.3 <1.0 6/3/10 5.7 <1.0 <1.0 <2.0 71.3 4.6 <1.0 7/19/11 4.8 <1.0 <1.0 <2.0 76.7 4.8 <1.0 5/31/12 2.6 <1.0 <1.0 <2.0 61.0 3.9 <1.0 5/8/13 5.1 <5.0 <1.0 <3.0 60 4.5 <5.0 4/29/14 4.7 <1.0 <1.0 <2.0 50.4 4.4 <1.0 5/7/15 5.7 <1.0 <1.0 <2.0 41.5 4.7 <1.0 5/27/16 5.5 <1.0 <1.0 <2.0 40.6 5.9 <0.34 3/9/17 6.2 <1.0 <1.0 <1.0 24.2 4.8 1.21/18/23 19.1 <1.00 <1.00 <3.00 17.6 10.9 <5.00 MW-15 8/30/90 3 <0.5 0.6 3 NA NA NA 12/13/91 25 <1 <1 <1 NA NA NA 3/7/94 ND ND ND ND 4.2 NA NA 9/13/93 ND ND ND ND 27 NA ND 10/12/94 2 ND ND 3 ND NA ND 2/20/98 <1 <5 <1 4 6 <1 <10 7/7/98 <1 <5 <1 <2 7 <1 <5 10/6/98 5 <5 <1 <2 33 <1 <5 1/22/99 <1 <5 <1 <2 <5 <1 NA 4/7/99 <1 <5 <1 <2 <5 <1 <5 7/20/99 1 <5 <1 <2 20 <1 <5 10/27/99 <1 <5 <1 <2 <5 <1 <5 1/5/00 <1.0 <5.0 <1.0 <2.0 <5.0 <1.0 <5.0 4/12/00 <0.500 <0.500 <0.500 <0.500 8.10 <0.500 <0.500 7/18/00 <0.500 <0.500 <0.500 <0.500 18.5 <0.500 <0.500 PIEDMONT GEOLOGIC, P.C.Page 7 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-15 10/10/00 2.16 <0.500 <0.500 1.12 67.2 <0.500 NA 1/9/01 3.19 0.900 <0.500 1.04 54.6 <0.500 1.55 4/5/01 <1.0 <1.0 <1.0 <1.0 7.7 <1.0 NA 1/9/02 <1.0 <1.0 <1.0 <1.0 35 <1.0 <2.0 2/5/03 <0.50 <0.50 <0.70 <1.0 0.57 <0.50 <1.0 2/13/04 <1.0 <2.0 <2.0 <6.0 2.3 <2.0 <2.0 2/16/05 <1.0 <1.0 <1.0 <3.0 1.3 <1.0 <2.0 2/17/06 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 2/28/07 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 6/2/08 <1.0 28.2 <1.0 <3.0 <1.0 <1.0 <1.0 6/5/09 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/24/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 7/12/11 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/25/12 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/7/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 4/21/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/5/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/27/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <0.34 3/9/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.010/20/18 <1.00 <1.00 <1.00 <3.00 <1.00 <1.00 <5.00 MW-16 8/30/90 7 5 2 16 NA NA NA 12/13/91 3 <1 <1 <1 NA NA NA 3/7/94 2.0 1.6 ND ND ND NA NA 10/12/94 ND ND ND ND ND NA ND 2/20/98 1 <5 2 <2 <5 <1 <10 7/7/98 1 <5 <1 <2 <5 3 <5 10/6/98 1 <5 <1 <2 <5 6 <5 1/22/99 1 <5 <1 <2 <5 3 NA 4/7/99 <1 <5 <1 <2 <5 4 5 7/20/99 4 <5 <1 5 <5 4 <5 10/26/99 2 <5 <1 <2 <5 4 <5 1/5/00 1.2 <5.0 <1.0 <2.0 <5.0 3.5 <5.0 4/12/00 1.20 <0.500 <0.500 <0.500 1.7 2.56 <0.500 7/18/00 1.16 <0.500 0.740 <0.500 <0.500 3.06 <0.500 10/10/00 4.50 0.620 9.21 17.7 15.1 3.40 NA 1/9/01 1.21 <0.500 <0.500 <0.500 <0.500 2.99 2.16 4/4/01 8.9 1.7 11 20.2 3.5 1.9 NA 1/9/02 <1.0 <1.0 <1.0 <1.0 <1.0 2.0 <2.0 2/5/03 0.63 0.75 <0.70 <1.0 7.0 1.3 <1.0 2/25/04 <1.0 <2.0 <2.0 <6.0 7.6 0.96 <2.0 2/18/05 <1.0 <1.0 <1.0 <3.0 7.8 <1.0 <2.0 2/17/06 <1.0 <1.0 2.4 <3.0 11.3 0.60 1.3 2/28/07 <1.0 <5.0 <1.0 <3.0 11.0 <1.0 <5.0 6/2/08 <1.0 <1.0 <1.0 <3.0 16.4 <1.0 <1.0 6/1/09 <1.0 <1.0 <1.0 <2.0 20.7 <1.0 <1.0 6/2/10 <1.0 <1.0 <1.0 <2.0 18.2 <1.0 <1.0 7/15/11 <1.0 <1.0 <1.0 <2.0 19.5 <1.0 <1.0 5/31/12 <1.0 <1.0 <1.0 <2.0 22.3 <1.0 <1.0 5/7/13 <1.0 <5.0 <1.0 <3.0 28 <1.0 <5.0 4/28/14 <1.0 <1.0 <1.0 <2.0 49.0 <1.0 <1.0 5/5/15 <1.0 <1.0 <1.0 <2.0 32.2 <1.0 <1.0 5/26/16 <1.0 <1.0 <1.0 <2.0 21.5 <1.0 <1.53/7/17 <1.0 <1.0 <1.0 1.1 21.5 <1.0 1.8 PIEDMONT GEOLOGIC, P.C.Page 8 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-17 8/30/90 <0.5 <0.5 <0.5 <2 NA NA NA 12/13/91 <1 <1 <1 <1 NA NA NA 3/7/94 ND ND ND ND 14 NA NA 10/12/94 ND ND ND ND ND NA ND 2/20/98 2 <5 <1 4 26 <1 <10 7/7/98 <1 <5 <1 <2 33 <1 <5 10/6/98 <1 <5 <1 <2 20 <1 <5 1/22/99 <1 <5 <1 <2 23 <1 NA 4/7/99 <1 <5 <1 <2 18 <1 <5 7/20/99 <1 <5 <1 <2 31 <1 <5 10/27/99 <1 <5 <1 <2 33 <1 <5 1/5/00 <1.0 <5.0 <1.0 <2.0 24 <1.0 <5.0 4/12/00 <0.500 0.540 <0.500 <0.500 21.0 <0.500 1.19 7/18/00 <0.500 <0.500 <0.500 <0.500 24.0 <0.500 <0.500 10/10/00 <0.500 <0.500 <0.500 <0.500 34.6 <0.500 NA 1/9/01 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 4/5/01 <1.0 <1.0 <1.0 <1.0 18 <1.0 NA 1/9/02 <1.0 <1.0 <1.0 <1.0 17 <1.0 <2.0 2/5/03 <0.50 1.5 <0.70 <1.0 16.2 <0.50 <1.0 2/25/04 <1.0 <2.0 <2.0 <6.0 8.3 <2.0 <2.0 2/16/05 <1.0 <1.0 <1.0 <3.0 9.9 <1.0 <2.0 2/17/06 <1.0 <1.0 <1.0 <3.0 18.0 <1.0 <2.0 2/28/07 <1.0 <5.0 <1.0 <3.0 13.0 <1.0 <5.0 6/2/08 <1.0 <1.0 <1.0 <3.0 12.8 <1.0 <1.0 6/5/09 <1.0 <1.0 <1.0 <2.0 14.3 <1.0 <1.0 5/24/10 <1.0 <1.0 <1.0 <2.0 9.4 <1.0 <1.0 7/15/11 <1.0 <1.0 <1.0 <2.0 9.0 <1.0 <1.0 5/25/12 <1.0 <1.0 <1.0 <2.0 5.2 <1.0 <1.0 5/8/13 <1.0 <5.0 <1.0 <3.0 3.7 <1.0 <5.0 4/21/14 <1.0 <1.0 <1.0 <2.0 1.8 <1.0 <1.0 5/5/15 <1.0 <1.0 <1.0 <2.0 1.2 <1.0 <1.0 5/27/16 <1.0 <1.0 <1.0 <2.0 1.2 <1.0 <0.34 3/9/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 10/31/18 <1.00 <1.00 <1.00 <3.00 <1.00 <1.00 <5.001/30/23 <1.00 <1.00 <1.00 <3.00 1.07 <1.00 <5.00 MW-18 8/30/90 <0.5 <0.5 <0.5 <2 NA NA NA 12/13/91 <1 <1 <1 <1 NA NA NA 3/7/94 ND ND ND ND ND NA NA 10/17/94 ND ND ND ND ND NA ND 2/20/98 <1 <5 <1 <2 <5 <1 <10 7/7/98 <1 <5 <1 <2 <5 <1 <5 10/6/98 <1 <5 <1 <2 <5 <1 <5 1/22/99 <1 <5 <1 <2 <5 <1 NA 4/7/99 <1 <5 <1 <2 <5 <1 <5 7/20/99 6 <5 <1 9 <5 <1 <5 10/26/99 <1 <5 <1 <2 <5 <1 <5 1/5/00 <1.0 <5.0 <1.0 <2.0 <5.0 <1.0 <5.0 4/12/00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 0.871 7/18/00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 10/10/00 5.40 1.80 16.4 29.9 13.7 <0.500 NA 1/9/01 <0.500 0.520 <0.500 <0.500 <0.500 <0.500 1.04 4/4/01 12 1.4 13 23.7 <1.0 <1.0 NA 1/9/02 <1.0 1.2 <1.0 <1.0 <1.0 <1.0 <2.0 2/5/03 1.1 0.55 <0.70 <1.0 <0.50 0.81 <1.0 PIEDMONT GEOLOGIC, P.C.Page 9 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-18 2/24/04 0.67 <2.0 <2.0 <6.0 <2.0 <2.0 <2.0 2/18/05 1.6 <1.0 <1.0 <3.0 <1.0 0.77 <2.0 3/17/06 3.9 <1.0 3.0 <3.0 <1.0 1.1 1.6 2/28/07 2.7 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 6/2/08 2.3 <1.0 <1.0 <3.0 6.3 1.3 <1.0 6/1/09 1.3 <1.0 <1.0 <2.0 9.8 1.1 <1.0 6/2/10 1.6 <1.0 <1.0 <2.0 13.2 1.2 <1.0 7/13/11 2.2 <1.0 <1.0 <2.0 31.1 <1.0 <1.0 5/31/12 1.8 <1.0 <1.0 <2.0 26.7 1.8 <1.0 5/8/13 1.6 <5.0 <1.0 <3.0 29 2.0 <5.0 4/28/14 1.2 <1.0 <1.0 <2.0 26.3 2.3 <1.0 5/5/15 2.0 <1.0 <1.0 <2.0 35.2 2.2 <1.0 5/26/16 1.2 <1.0 <1.0 <2.0 27.2 2.1 <1.5 3/7/17 1.9 <1.0 <1.0 <1.0 39.7 2.2 1.51/18/23 <1.00 <1.00 <1.00 <3.00 104 6.29 <5.00 MW-19 8/30/90 14,000 8,600 1,500 6,300 NA NA NA (GWE-11)12/13/91 19,000 1,200 1,700 5,100 NA NA NA 3/8/94 3,600 1,700 2,600 9,400 ND NA NA 10/11/94 2,100 910 940 3,000 280 NA 470 2/23/98 2,000 700 1,100 2,100 160 <10 220 7/8/98 850 250 600 1,000 <50 <10 330 10/7/98 2,600 1,800 1,300 2,700 <500 <100 <500 1/28/99 4,400 1,500 1,200 3,000 740 <100 310 5/13/02 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 9/19/02 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 5/13/03 8,400 1,400 1,800 3,500 5,200 NA NA 9/24/03 5,020 952 2,340 4,010 7,310 <20 815 12/2/03 6,540 1,070 2,610 4,420 10,500 <200 666 3/1/04 5,610 582 2,160 2,810 12,600 <200 455 5/11/04 6,790 356 2,440 2,970 14,000 <400 442 8/3/04 6,520 <20 <20 2,660 12,000 <20 701 2/25/05 407 57.5 257 621 1,250 <20 141 5/24/05 2,190 590 245 739 1,140 45.8 386 8/3/05 3,200 783 1,250 1,410 1,980 <50 280 12/2/05 355 <200 <200 <600 10,400 <200 <400 2/27/06 46.3 5.4 14.1 25.7 157 <1.0 15.9 8/4/06 4,400 860 1,700 2,400 10,000 <50 520 3/2/07 2,600 500 800 1,100 2,200 <10 310 8/9/07 2,400 320 560 1,100 5,000 <20 330 6/5/08 2,660 198 1,650 1,910 5,860 2.7 735 12/19/08 102 <50.0 90.9 255 158 <50.0 192 6/2/09 432 27.5 603 753 440 <2.0 383 11/30/09 148 31.8 162 215 675 <1.0 15.9 11/24/10 3.0 <1.0 3.4 <2.0 11 <1.0 7.2 7/15/11 23.5 <1.0 84.8 12.14 31.1 <1.0 44.3 1/12/12 136 <2.5 595 190 202 <2.5 228 6/1/12 123 <5.0 730 369 240 <5.0 404 12/28/12 71.9 <5.0 537 247 104 <5.0 306 5/13/13 31 <50 270 120 44 <10 100 11/12/13 37.8 <5.0 558 237 27.0 <5.0 301 4/25/14 33.6 <5.0 657 124 23.4 <5.0 342 10/14/14 10.9 <5.0 64.3 <10.0 <5.0 <5.0 126 5/8/15 31.8 <5.0 543 36.3 5.4 <5.0 336 11/24/15 22.9 1.4 415 27.3 26.1 <1.2 14.8 PIEDMONT GEOLOGIC, P.C.Page 10 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-19 6/1/16 9.7 <2.0 249 17.3 <2.0 <2.0 79.9(GWE-11)10/25/16 8.7 <2.0 389 27.4 <2.0 <2.0 96.8 3/10/17 8.0 <2.0 225 17.8 <2.0 <2.0 93.8MW-20A 9/16/96 1,200 <50 <10 210 <50 NA NA 2/23/98 410 <5 4 29 <5 150 15 7/8/98 96 <5 3 6 <5 160 9 10/6/98 210 <50 <10 <20 <50 160 <50 1/27/99 550 <5 6 27 <5 200 NA 4/7/99 320 <5 4 14 14 180 10 7/20/99 390 <50 <10 26 <50 220 <50 10/28/99 610 <5 5 23 <5 170 15 1/7/00 620 <5.0 1.2 32 <5.0 190 18 4/12/00 82.4 1.49 1.94 6.49 16.7 96.6 <0.500 7/18/00 627 <0.500 10.8 17.0 13.1 119 13.2 10/10/00 242 <2.00 7.87 12.3 12.6 70.2 NA 1/10/01 707 4.17 14.7 258 <2.00 76.7 9.88 4/3/01 720 <20 <20 <20 <20 50 NA 1/10/02 1,500 490 <200 <200 <200 <200 <400 2/6/03 1,450 11.6 40.2 42.3 36.8 <0.50 <1.0 3/1/04 1,040 78.4 16.4 79.1 13.4 <40 <40 2/23/05 356 <5.0 3.6 <15 <5.0 49.4 6.9 2/8/06 463 <1.0 0.98 <3.0 48.0 44.4 9.0 8/3/06 440 <50 <10 <30 58 <10 <50 2/28/07 430 <50 1.4 <3.0 41 26 9.0 8/7/07 230 <500 <100 <300 <100 <100 <500 6/4/08 306 <1.0 <1.0 <3.0 65.2 64.9 7.5 12/17/08 197 <2.0 <2.0 <4.0 78.9 67.8 7.8 6/4/09 153 <1.0 <1.0 <2.0 85.1 60.9 5.2 11/3/09 268 <1.0 0.81 <2.0 105 72.4 6.1 6/3/10 103 <1.0 <1.0 <2.0 63.4 87.3 2.2 11/23/10 83.3 <1.0 <1.0 <2.0 83.0 74.5 2.5 7/19/11 56.3 <1.0 <1.0 <2.0 114 97.6 1.6 6/1/12 22.8 <1.0 6.7 2.4 135 82.4 5.5 5/10/13 12 <5.0 <1.0 <3.0 180 60 <5.0 4/29/14 2.7 <1.0 <1.0 <2.0 134 114 <1.0 5/7/15 4.8 <1.0 <1.0 <2.0 194 80.0 <1.0 5/27/16 <1.0 <1.0 <1.0 <2.0 209 86.5 <0.34 3/9/17 2.4 <2.0 <2.0 <2.0 255 56.9 <2.01/18/23 131 <1.00 <1.00 <3.00 368 175 5.03 MW-21 12/13/91 6,500 1,600 1,400 3,300 NA NA 390 3/7/94 3,600 1,900 1,800 5,700 600 NA NA 10/12/94 1,200 1,400 1,400 5,200 560 NA 350 2/23/98 950 250 1,600 3,200 120 <10 370 7/8/98 1,200 450 2,200 4,400 <400 <80 <400 10/6/98 750 390 1,800 3,800 <50 <10 780 1/27/99 690 270 1,400 2,800 67 <10 160 4/7/99 720 230 1,400 2,700 82 <10 300 7/20/99 950 <500 2,100 3,800 <500 <100 680 10/28/99 540 180 1,100 2,400 58 <10 290 1/7/00 1,200 <500 1,900 3,300 <500 <100 370 4/12/00 561 138 1,170 1,910 37.7 <5.00 222 7/18/00 37.5 10.3 98.8 162 13.7 <1.00 25.9 10/10/00 373 79.3 1,080 1,630 47.8 <5.00 NA 1/10/01 788 162 2,040 3,330 <5.00 <5.00 482 PIEDMONT GEOLOGIC, P.C.Page 11 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-21 4/3/01 290 71 660 1,110 22 <20 NA 1/10/02 340 240 1,700 2,210 <20.0 <20.0 290 2/6/03 370 274 1,460 1,900 14.6 <0.50 157 2/24/04 307 140 1,490 1,920 <40 <40 374 2/23/05 264 150 1,590 2,390 <20 <20 492 2/8/06 320 163 2,160 2,400 <50 <50 559 8/3/06 200 100 1,900 2,100 <10 <20 580 2/28/07 180 54 2,200 2,100 <5.0 <5.0 520 8/7/07 190 <50 1,500 1,300 <10 <10 520 5/30/08 160 44.7 1,170 944 8.0 <1.0 376 5/29/09 135 71.5 1,630 1,590 <10 <10 681 6/1/10 153 53.4 1,760 1,570 <10.0 <10.0 543 7/14/11 119 52.9 1,750 1,480 <10.0 <10.0 571 5/29/12 107 43.0 1,620 1,110 <10.0 <10.0 531 5/13/13 120 <120 2,000 1,300 <25 <25 600 4/23/14 75.4 47.8 1,950 1,570 <10.0 <10.0 645 5/7/15 71.6 44.5 1,690 1,080 <10.0 <10.0 509 6/1/16 70.8 41.7 1,930 921 <10.0 <10.0 321 3/10/17 47.1 33.3 1,590 799 <12.5 <12.5 54310/20/18 50.1 33.9 610 702 <5.00 <1.00 539 MW-22 12/13/91 3,800 80 420 40 NA NA 260 3/7/94 690 12 69 ND 94 NA NA 10/12/94 1,100 27 100 41 280 NA 280 2/20/98 1,100 18,000 19 <20 380 <10 160 2/16/05 373 2.0 1.6 <3.0 162 <1.0 15.9 2/7/06 61.1 <1.0 <1.0 <3.0 63.4 <1.0 1.6 3/1/07 58 <5.0 <1.0 <3.0 67 <1.0 <5.0 5/29/08 245 1.2 <1.0 <3.0 218 1.0 7.7 12/17/08 15.8 <2.0 <2.0 <4.0 49.6 <2.0 2.9 5/29/09 50.2 <1.0 <1.0 <2.0 117 <1.0 2.4 11/2/09 1.5 <1.0 <1.0 <2.0 4.9 <1.0 1.1 5/25/10 15.3 <1.0 <1.0 <2.0 67.8 <1.0 1.8 11/22/10 1.1 <1.0 <1.0 <2.0 33.0 <1.0 <1.0 7/13/11 2.0 <1.0 <1.0 <2.0 39.6 <1.0 <1.0 5/25/12 1.7 <1.0 <1.0 <2.0 41.7 <1.0 <1.0 5/9/13 3.8 <5.0 <1.0 <3.0 47 <1.0 <5.0 4/22/14 7.1 <1.0 <1.0 <2.0 80.5 <1.0 1.8 5/7/15 8.7 <1.0 <1.0 <2.0 108 <1.0 3.3 5/27/16 2.8 <1.0 <1.0 <2.0 52.6 <1.0 1.3 3/9/17 8.3 <1.0 <1.0 <1.0 96.3 <1.0 3.510/31/18 3.00 <1.00 <1.00 <3.00 96.9 <1.00 <5.00 MW-23 12/13/91 <2 <2 <2 <2 NA NA NA 3/7/94 ND ND ND ND 41 NA NA 10/12/94 ND ND ND ND 19 NA ND 2/20/98 4 <5 1 6 120 <1 <10 1/10/00 <1.0 <5.0 <1.0 <2.0 47 <1.0 <5.0 1/10/01 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 1/9/02 <1.0 <1.0 <1.0 <1.0 12.0 <1.0 <2.0 2/6/03 <0.50 <0.50 <0.70 <1.0 47.5 <0.50 <1.0 2/13/04 <1.0 <2.0 <2.0 <6.0 72.6 <2.0 <2.0 5/11/04 <1.0 <2.0 <2.0 <6.0 70.2 <2.0 <2.0 8/4/04 <1.0 <2.0 <2.0 <6.0 21.9 <2.0 <2.0 12/1/04 <1.0 <2.0 <2.0 <6.0 39.2 <2.0 <2.0 2/16/05 <1.0 <1.0 <1.0 <3.0 74.0 <1.0 <2.0 PIEDMONT GEOLOGIC, P.C.Page 12 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-23 8/1/05 <1.0 <1.0 <1.0 <3.0 60.5 <1.0 <2.0 2/17/06 <1.0 <1.0 <1.0 <3.0 31.3 <1.0 1.3 3/1/07 <1.0 <5.0 <1.0 <3.0 37 <1.0 <5.0 5/29/08 <1.0 <1.0 <1.0 <3.0 12.2 <1.0 <1.0 5/29/09 <1.0 <1.0 <1.0 <2.0 4.6 <1.0 <1.0 5/25/10 <1.0 <1.0 <1.0 <2.0 6.0 <1.0 <1.0 7/13/11 <1.0 <1.0 <1.0 <2.0 9.2 <1.0 <1.0 5/25/12 <1.0 <1.0 <1.0 <2.0 41.0 <1.0 <1.0 5/9/13 <1.0 <5.0 <1.0 <3.0 18 <1.0 <5.0 4/22/14 <1.0 <1.0 <1.0 <2.0 33.6 <1.0 <1.0 5/7/15 <1.0 <1.0 <1.0 <2.0 12.4 <1.0 <1.0 5/25/16 <1.0 <1.0 <1.0 <2.0 11.5 <1.0 <1.5 3/9/17 <1.0 <1.0 <1.0 <1.0 9.6 <1.0 <1.0 10/31/18 <1.00 <1.00 <1.00 <3.00 3.52 <1.00 <5.00MW-24A 9/16/96 2,300 2,200 980 4,100 <500 NA NA 2/20/98 3,900 840 1,200 4,500 <500 100 290 7/8/98 3,300 1,200 590 2,800 <500 120 <500 10/7/98 4,300 1,900 1,200 4,700 <500 190 <500 1/27/99 3,000 1,400 630 2,400 100 170 NA 4/9/99 4,600 3,400 1,500 5,700 <500 250 660 7/21/99 4,300 2,400 1,200 4,800 <500 <100 510 10/28/99 5,100 4,200 1,400 5,500 340 270 440 1/7/00 5,100 4,300 1,200 5,100 200 280 360 4/13/00 5,840 4,860 1,500 6,680 415 327 536 7/19/00 2,330 1,590 51.5 2,290 316 220 <5.00 10/11/00 4,360 3,990 1,100 4,840 434 251 NA 1/11/01 4,020 3,970 1,080 4,700 402 220 500 4/4/01 3,500 3,000 440 3,100 500 310 NA 1/10/02 3,500 2,900 590 4,100 730 300 470 2/10/03 2,430 1,480 284 2,480 751 210 94.0 2/24/04 1,930 1,590 178 2,050 1,330 272 112 8/3/04 6,450 3,220 1,560 6,630 1,160 <200 258 12/2/04 5,670 1,830 1,060 4,720 1,240 228 374 2/23/05 6,180 1,300 1,400 5,480 1,640 255 444 8/1/05 3,130 525 299 2,680 1,560 256 155 2/9/06 6,410 1,580 1,280 4,590 1,790 313 462 8/3/06 4,100 1,000 890 4,200 1,500 270 440 2/26/07 2,600 1,100 1,100 3,700 1,100 250 360 8/8/07 5,700 1,700 1,400 5,000 1,600 <200 <1,000 6/5/08 5,400 1,260 1,170 4,500 1,800 244 399 12/17/08 5,980 1,650 1,340 4,570 1,890 235 508 6/2/09 9,220 2,960 1,890 7,150 2,540 295 813 11/3/09 1,760 442 217 1,130 1,190 129 259 12/3/09 26.4 5.9 5.2 19.0 33.3 3.1 14.0 1/11/10 900 400 1,100 2,000 65 <25 420 3/8/10 <1.0 <5.0 <1.0 <3.0 85 9.2 <5.0 6/1/10 <1.0 <1.0 <1.0 <2.0 102 6.3 <1.0 11/23/10 3.5 1.2 <1.0 3.1 148 8.2 <1.0 7/18/11 2.5 1.0 <1.0 10.4 209 15.9 <1.0 1/12/12 11.2 2.6 <2.0 9.5 319 21.1 <2.0 5/31/12 29.5 3.0 3.1 8.0 363 27.6 2.6 12/28/12 112 3.2 9.7 10.1 609 40.7 7.3 5/8/13 52 <5.0 4.8 3.4 590 54 5.7 11/12/13 203 3.7 15.4 8.6 917 52.8 23.6 PIEDMONT GEOLOGIC, P.C.Page 13 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-24A 4/29/14 119 3.2 10.8 <4.0 1,200 55.7 16.9 10/14/14 149 <10.0 14.5 <20.0 1,100 52.6 34.3 5/7/15 75.1 <20.0 <20.0 <40.0 1,400 63.0 <20.0 11/24/15 178 7.4 14.3 20.8 1,480 57.0 <1.5 5/31/16 49.7 <10.0 <10.0 <20.0 1,890 30.8 <0.34 10/25/16 278 <10.0 21.3 <10.0 1,950 61.7 18.6 3/10/17 126 <12.5 18.6 <12.5 2,070 69.3 28.5 1/19/23 240 11.8 109 13.4 5,410 15.1 9.31MW-24B 9/16/96 8,300 4,900 1,800 7,100 2,400 NA NA 2/20/98 9,300 3,500 1,800 5,700 3,200 190 420 7/8/98 7,900 3,100 1,500 5,100 4,000 <100 <500 10/7/98 7,000 2,100 1,300 4,100 2,100 160 <500 1/27/99 7,700 2,500 1,700 4,900 2,800 240 NA 1/7/00 8,000 2,600 1,800 5,700 2,800 250 710 1/11/01 5,340 1,880 1,480 5,060 1,360 95.0 <10.0 1/10/02 6,800 2,300 1,400 4,900 2,000 7.9 490 2/10/03 5,220 2,730 1,080 4,180 1,120 149 337 9/24/03 5,260 2,830 1,540 5,380 723 <20 700 12/2/03 7,140 3,760 1,960 7,370 1,050 123 685 2/24/04 6,930 2,650 951 3,820 1,550 151 236 8/3/04 6,010 3,400 2,010 7,130 695 <200 366 12/2/04 4,560 2,250 1,580 5,440 789 82.2 506 2/23/05 6,020 2,730 1,870 5,990 873 81.3 613 8/1/05 3,890 1,970 1,660 4,750 568 74.2 512 2/9/06 3,670 1,580 1,400 4,080 474 58.6 513 8/3/06 1,900 2,200 780 3,000 360 <50 310 2/26/07 2,000 990 1,300 3,700 300 36 550 8/8/07 1,900 <1,200 1,200 3,000 <250 <250 <1,200 5/29/08 1,390 626 1,530 3,020 111 15 444 12/17/08 992 370 1,110 2,180 80.7 10.7 659 5/28/09 1,400 465 1,600 3,130 92.2 9.8 740 11/3/09 1,000 329 1,300 2,400 72.4 7.0 685 11/30/09 1,620 764 769 1,990 99.3 19.9 431 1/11/10 5.9 6.4 39 78 58 6.0 57 3/8/10 370 130 300 660 58 <20 260 6/1/10 1,420 535 1,200 2,630 107 14.2 514 11/23/10 1,060 306 490 1,660 135 12.0 207 7/14/11 483 46.3 39.0 641 144 11.5 68.3 1/12/12 916 311 449 1,090 229 17.8 434 6/1/12 658 230 363 949 204 14.7 372 12/27/12 269 72.9 119 303 136 7.3 277 5/14/13 2.0 <5.0 <1.0 6.6 28 <1.0 65 11/12/13 88.2 26.5 38.1 104 70.8 3.0 88.5 4/23/14 181 45.0 87.0 221 122 4.0 175 10/14/14 189 53.9 105 217 138 3.5 108 5/8/15 81.8 16.1 32.2 81.3 168 2.7 111 11/24/15 41.7 8.2 15.5 28.6 208 2.1 <1.5 5/31/16 10.6 5.1 9.3 20.0 176 <2.0 <0.34 10/25/16 7.7 4.5 6.4 16.1 154 <1.0 2.6 3/10/17 10.6 3.8 6.4 16.5 181 <1.0 2.3 MW-25 12/12/91 <1 <1 <1 <1 NA NA <10 3/8/94 ND ND ND ND ND NA NA 10/12/94 ND ND ND ND ND NA ND 2/20/98 <1 <5 <2 <2 12 <1 <10 PIEDMONT GEOLOGIC, P.C.Page 14 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-25 2/26/07 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 5/28/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <1.0 5/28/09 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/25/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 7/12/11 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/25/12 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/9/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 4/23/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/5/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/24/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.53/8/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-27 11/10/93 ND ND ND ND ND NA NA 10/11/94 ND ND ND ND ND NA ND 3/7/94 ND ND ND ND ND NA NA 2/24/98 <1 <5 <2 <2 <5 <1 <10 1/22/99 <1 <5 <1 <2 <5 <1 NA 1/6/00 <1.0 <5.0 1.5 4.9 <5.0 <1.0 <5.0 1/10/01 <0.500 <0.500 0.765 2.29 <0.500 <0.500 <0.500 1/10/02 <1.0 <1.0 7.1 15.4 <1.0 <1.0 21.0 2/6/03 8.3 1.7 8.2 10.4 <0.50 <0.50 1.2 2/20/04 <1.0 <2.0 <2.0 <6.0 <2.0 <2.0 <2.0 2/17/05 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 2/16/06 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 2/26/07 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 5/28/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <1.0 5/29/09 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/25/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 7/12/11 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/25/12 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/8/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 4/23/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/6/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/25/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.53/8/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-28 11/10/93 ND ND ND ND ND NA NA 3/7/94 ND ND ND ND ND NA NA 10/11/94 ND ND ND ND ND NA ND 2/23/98 <1 <5 <2 <2 <5 <1 <10 2/27/07 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 5/29/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <1.0 5/29/09 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/25/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 7/13/11 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/29/12 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/9/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 4/23/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/5/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 6/1/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <0.343/10/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-34 11/10/93 ND ND 3.3 36 ND NA NA 3/7/94 ND ND 59 890 ND NA NA 10/11/94 ND ND ND 12 ND NA ND 2/20/98 7 <5 <1 18 <5 <1 <10 7/7/98 <1 <5 1 31 <5 <1 550 PIEDMONT GEOLOGIC, P.C.Page 15 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-34 10/6/98 <1 <5 1 19 <5 <1 30 1/22/99 <1 <5 <1 11 <5 <1 <10 4/7/99 <1 <5 <1 13 <5 <1 17 7/21/99 <1 <5 <1 17 <5 <1 49 10/29/99 <1 <5 <1 16 <5 <1 16 1/6/00 <1.0 <5.0 <1.0 15 <5.0 <1.0 12 4/12/00 <0.500 <0.500 <0.500 33.6 <0.500 <0.500 23.7 7/19/00 <0.500 <0.500 1.72 <0.500 <0.500 <0.500 <0.500 10/11/00 1.20 2.07 2.50 93.2 <0.500 <0.500 NA 1/10/01 <0.500 0.563 0.591 44.1 <0.500 <0.500 <0.500 4/5/01 <5.0 <5.0 <5.0 23 <5.0 <5.0 NA 2/6/03 0.50 0.79 <0.70 6.6 <0.50 <0.50 9.8 2/18/04 <1.0 1.2 <2.0 96.8 <2.0 <2.0 44.5 2/17/05 <1.0 <1.0 0.82 63.8 <1.0 <1.0 92.5 2/7/06 <1.0 <1.0 <1.0 29.7 <1.0 <1.0 39.9 2/27/07 <1.0 <5.0 <1.0 28 <1.0 <1.0 25 5/28/08 <1.0 <1.0 <1.0 12.3 <1.0 <1.0 14.3 5/27/09 <1.0 <1.0 <1.0 9.9 <1.0 <1.0 13.3 5/25/10 <1.0 <1.0 <1.0 37.4 <1.0 <1.0 30.7 7/13/11 <1.0 <1.0 <1.0 5.7 <1.0 <1.0 7.7 5/25/12 <1.0 <1.0 <1.0 12.6 <1.0 <1.0 16.4 5/6/13 <1.0 <5.0 <1.0 17 <1.0 <1.0 21 4/22/14 2.3 <1.0 <1.0 50 <1.0 <1.0 50.8 5/6/15 <1.0 <1.0 <1.0 9.0 <1.0 <1.0 16.1 5/25/16 <1.0 <1.0 <1.0 37.3 <1.0 <1.0 10.33/8/17 <1.0 <1.0 <1.0 35.7 <1.0 <1.0 75.6 MW-35 11/10/93 7,200 4,400 1,800 4,400 ND NA NA (GWE-10)3/7/94 32 19 20 61 1.1 NA 290 10/11/94 3,100 1,000 1,400 3,200 320 NA 910 2/23/98 1,200 130 500 690 93 <10 120 1/21/99 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 1/3/00 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 1/8/01 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 1/7/02 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 2/7/03 7,740 3,330 2,090 3,710 1,330 <5.0 659 5/13/03 8,400 1,400 1,700 3,400 5,700 NA NA 9/24/03 4,460 1,360 1,670 2,370 988 <20 748 12/2/03 5,860 1,770 2,140 3,090 1,330 <200 672 3/1/04 3,920 843 1,420 1,740 972 <200 419 5/11/04 6,880 1,830 2,430 3,160 2,040 <200 589 8/3/04 6,350 1,730 1,860 2,640 2,270 <20 768 2/25/05 478 32.3 416 490 54.6 <10 147 5/24/05 7,910 8,380 713 4,780 1,660 245 551 8/3/05 3,010 749 1,270 1,370 1,710 <100 277 12/2/05 5,060 1,570 1,580 2,340 2,450 <100 52.7 2/27/06 2,070 467 956 1,180 1,230 53.5 269 8/4/06 320 <250 93 220 3,600 <50 <250 3/2/07 3,900 890 1,400 1,800 1,600 <10 420 8/9/07 4,600 970 1,400 1,800 2,800 <50 410 6/5/08 1,380 148 554 495 835 <1.0 334 12/19/08 281 <10.0 124 89.6 296 <10.0 44.6 6/2/09 252 9.4 377 274 78.8 <2.0 290 11/30/09 411 98.7 235 297 475 <50 <250 11/24/10 352 7.6 212 166 163 <2.0 161 PIEDMONT GEOLOGIC, P.C.Page 16 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-35 2/8/11 400 <25 390 270 150 <5.0 160 (GWE-10)1/12/12 638 6.2 656 285 295 <5.0 258 12/28/12 808 5.1 852 265 454 <5.0 349 5/13/13 280 <50 270 110 160 <10 87 11/12/13 229 1.9 521 196 156 <1.0 142 4/23/14 152 <5.0 619 162 68.8 <5.0 271 10/14/14 202 <2.5 337 48.7 167 <2.5 137 5/8/15 243 <5.0 536 57.3 172 <5.0 206 11/24/15 159 1.5 539 49.9 113 <1.2 15.9 6/1/16 136 <5.0 515 54.9 150 <5.0 72.3 10/25/16 122 <2.5 458 28.0 141 <2.5 83.9 3/9/17 129 <2.5 254 32.4 340 <2.5 116MW-36 11/10/93 49 45 450 1,400 ND NA NA 3/7/94 110 170 5,600 16,000 ND NA 120 10/11/94 10 ND 160 320 10 NA 280 1/22/99 6 <5 190 57 <5 <1 170 2/27/07 <1.0 <5.0 14 6.4 <1.0 <1.0 46 5/29/08 <1.0 <1.0 29.2 5.6 <1.0 <1.0 84.1 5/29/09 <1.0 <1.0 29.8 2.0 <1.0 <1.0 49.6 5/25/10 <1.0 <1.0 24.6 2.0 <1.0 <1.0 27.4 11/22/10 54.6 <1.0 17.6 3.3 1.2 <1.0 25.2 2/8/11 21 <5.0 36 <3.0 1.1 <1.0 31 7/14/11 33.6 <1.0 35.8 <2.0 1.9 <1.0 23.4 1/12/12 26.7 <1.0 41.6 <2.0 2.2 <1.0 33.8 5/29/12 18.0 <1.0 41.5 4.7 2.3 <1.0 73.2 12/28/12 15.2 <1.0 50.0 3.3 2.3 <1.0 91.3 5/9/13 15 <5.0 44 <3.0 1.8 <1.0 30 11/12/13 10.8 <1.0 26.3 <2.0 1.2 <1.0 24.3 4/23/14 11.7 <1.0 35.7 <2.0 <1.0 <1.0 20.3 10/14/14 35.3 <1.0 372 61.1 10.4 <1.0 219 5/8/15 11.2 <1.0 38.4 <2.0 <1.0 <1.0 28.8 11/24/15 11.5 <0.26 38.9 1.5 0.38 <0.24 3.0 6/1/16 7.4 <1.0 27.0 <2.0 <1.0 <1.0 10.3 10/24/16 7.4 <1.0 33.8 3.4 <1.0 <1.0 16.5 3/10/17 10.3 <1.0 46.8 6.3 <1.0 <1.0 66.7 MW-37 3/8/94 22,000 37,000 3,500 17,000 ND NA NA 10/12/94 19,000 29,000 2,500 14,000 600 NA 1,200 2/20/98 20,000 37,000 2,900 14,000 <500 <100 570 7/8/98 14,000 33,000 2,400 12,000 <400 <80 530 10/7/98 18,000 37,000 3,900 16,000 <5,000 <1,000 <5,000 12/10/98 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 1/21/99 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 4/5/99 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 7/19/99 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 10/25/99 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 1/3/00 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 4/13/00 19,000 39,100 3,380 21,400 <50.0 <50.0 304 7/19/00 9,800 24,600 2,500 13,500 <40.0 <40.0 <40.0 10/12/00 9,560 24,300 2,250 12,600 <100 <100 NA 4/4/01 8,000 23,000 1,900 10,100 <500 <500 NA 7/3/01 10,000 29,000 2,600 13,300 <500 <500 <1,000 10/10/01 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 1/7/02 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 5/13/02 NAPL NAPL NAPL NAPL NAPL NAPL NAPL PIEDMONT GEOLOGIC, P.C.Page 17 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-37 9/19/02 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 12/17/02 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 2/12/03 8,000 35,800 4,540 23,000 <50 <50 3,830 12/1/03 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 2/24/04 4,230 26,000 3,650 21,000 <1,000 <1,000 1,200 8/4/04 8,590 29,000 4,850 27,000 <200 <200 892 12/2/04 5,690 23,700 3,290 18,100 <1,000 <1,000 1,010 2/23/05 8,380 20,700 3,710 18,100 <100 <100 1,020 8/2/05 7,870 16,000 4,060 20,700 <200 <200 744 2/9/06 5,520 23,700 3,910 20,400 <100 <100 1,590 8/3/06 5,100 21,000 3,000 18,000 <200 <200 1,200 3/1/07 5,200 24,000 3,100 18,000 <250 <250 <1,200 8/8/07 3,900 27,000 3,500 21,000 <1,000 <1,000 <5,000 5/30/08 3,280 19,700 3,190 17,600 <20.0 <20.0 1,690 12/18/08 3,050 15,500 2,560 15,500 <100 <100 1,980 5/28/09 2,450 14,200 1,510 10,000 <100 <100 1,040 11/2/09 3,070 17,800 1,770 12,300 <100 14.3 1,520 6/1/10 261 9,180 1,330 9,510 <100 <100 1,580 11/23/10 125 15,300 1,840 13,700 <50.0 <50.0 1,420 7/14/11 112 12,600 2,150 13,600 <50.0 <50.0 1,460 1/10/12 <100 8,210 1,840 11,900 <100 <100 1,570 5/29/12 <100 6,290 1,340 9,410 <100 <100 1,410 12/27/12 61.8 9,150 1,780 13,800 <50.0 <50.0 1,440 5/14/13 <100 6,200 1,400 11,000 <100 <100 1,900 11/12/13 92.7 7,160 2,110 13,900 <50.0 <50.0 1,790 4/24/14 <50.0 4,160 1,270 10,400 <50.0 <50.0 1,400 10/14/14 50.1 5,230 1,670 11,600 <50.0 <50.0 1,630 5/8/15 <50.0 3,810 1,460 10,000 <50.0 <50.0 1,360 11/24/15 30.9 4,020 1,560 9,910 <10.5 <12.0 142 6/1/16 <40.0 3,470 1,620 9,690 <40.0 <40.0 857 10/25/16 <40.0 3,210 1,870 11,400 <40.0 <40.0 1,040 3/10/17 <40.0 3,710 2,240 13,100 <40.0 <40.0 1,980MW-38 3/8/94 ND ND ND ND ND NA NA 10/17/94 ND ND ND ND ND NA ND 2/20/98 <1 <5 <1 <2 <5 <1 <10 1/27/99 <1 <5 <1 <2 <5 1 NA 1/10/00 <1.0 <5.0 <1.0 <2.0 <5.0 1.5 <5.0 1/11/01 <0.500 <0.500 <0.500 <0.500 <0.500 1.70 <0.500 1/10/02 <1.0 <1.0 <1.0 <1.0 <1.0 2.5 <2.0 2/6/03 10.6 1.8 8.2 10.7 <0.50 0.62 1.6 2/20/04 <1.0 <2.0 <2.0 <6.0 <2.0 <2.0 <2.0 2/18/05 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 2/6/06 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 3/1/07 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 5/30/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <1.0 5/29/09 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 6/1/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 7/13/11 20.6 <1.0 <1.0 6.1 <1.0 <1.0 <1.0 5/29/12 288 8.0 10.5 70.9 <1.0 <1.0 3.2 5/13/13 1,900 490 210 1,200 <10 <10 <50 7/12/13 1,100 230 140 780 <20 <20 <100 11/11/13 1,600 268 184 1,040 2.5 <2.0 20.8 4/22/14 449 55.4 64.3 417 <2.0 <2.0 7.1 10/14/14 1,150 139 137 735 <4.0 <4.0 21.5 PIEDMONT GEOLOGIC, P.C.Page 18 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-38 5/8/15 714 60.9 85.2 478 <5.0 <5.0 16.4 11/24/15 424 24.8 46.4 278 1.3 <1.2 <1.5 6/1/16 140 6.4 9.4 66.8 <1.0 <1.0 1.4 10/24/16 172 7.4 10.5 66.7 <1.0 <1.0 2.2 3/8/17 1,010 124 51.8 254 <10.0 <10.0 13.81/19/23 <1.00 <1.00 <1.00 <3.00 <1.00 <1.00 <5.00 MW-39 3/8/94 15,000 25,000 2,400 12,000 ND NA 460 10/12/94 12,000 22,000 1,700 9,500 ND NA 730 2/20/98 12,000 50,000 2,000 9,500 <500 <100 390 7/8/98 8,700 28,000 2,400 11,000 <400 <80 <400 10/7/98 14,000 31,000 3,000 13,000 <5,000 <1,000 <5,000 12/10/98 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 1/21/99 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 4/5/99 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 7/19/99 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 10/25/99 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 1/3/00 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 4/10/00 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 7/17/00 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 10/12/00 11,800 25,300 2,480 13,500 660 <100 NA 1/8/01 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 4/5/01 10,000 28,000 2,400 12,700 <500 <500 NA 7/2/01 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 10/10/01 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 1/7/02 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 5/13/02 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 9/19/02 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 12/17/02 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 12/20/02 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 2/3/03 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 5/12/03 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 9/23/03 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 12/1/03 NAPL NAPL NAPL NAPL NAPL NAPL NAPL 2/24/04 3,110 21,200 3,040 18,600 <500 <500 1,060 2/23/05 3,550 14,300 2,610 14,500 270 <100 908 2/9/06 977 6,140 1,710 11,300 134 <100 980 3/1/07 520 2,600 750 7,800 60 23 520 5/30/08 2,840 6,770 1,580 10,700 358 103 592 12/18/08 2,370 6,190 1,740 14,000 332 100 1,240 6/5/09 4,770 6,710 1,340 10,400 462 206 1,080 11/2/09 2,260 7,220 1,610 15,800 436 74.2 1,080 3/29/10 810 420 470 4,200 990 300 1,000 6/1/10 6,530 6,810 1,100 10,400 812 369 641 11/24/10 4,370 5,530 663 7,210 621 207 868 7/11/11 4,280 7,620 1,210 10,400 332 165 761 1/10/12 4,380 8,810 1,790 11,900 392 169 839 5/29/12 5,810 12,100 1,890 12,500 419 202 895 12/27/12 3,310 5,000 765 6,550 281 119 606 5/14/13 1,800 2,500 500 6,000 200 <100 <500 11/12/13 4,210 5,630 1,350 9,050 290 124 642 4/24/14 2,130 3,010 732 6,670 183 <100 632 10/14/14 3,890 7,760 2,320 12,300 246 105 1,250 5/8/15 4,490 6,120 1,170 8,210 264 124 639 11/24/15 5,870 335 1,510 10,500 335 153 132 PIEDMONT GEOLOGIC, P.C.Page 19 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-39 6/1/16 6,310 9,220 1,620 11,300 344 138 613 10/25/16 8,050 9,790 1,240 7,610 286 134 444 3/10/17 8,180 8,750 1,300 7,890 332 135 678 10/9/17 2,630 1,860 278 3,160 158 75.5 <250 1/2/18 1,630 1,040 303 4,690 147 <50.0 249 3/8/18 4,030 3,420 1,130 9,150 194 <50.0 351 5/30/18 2,200 2,390 788 7,880 138 <50.0 245 8/29/18 1,510 514 535 3,530 102 <50.0 171 11/20/18 1,970 1,190 438 3,680 103 <50.0 328 2/14/19 1,940 983 291 2,100 85.9 <20.0 211 1/30/23 1,070 752 171 742 <50.0 <50.0 <250 MW-41 3/8/94 ND ND ND ND ND NA NA 10/12/94 ns ns ns ns ns ns ns 2/20/98 <1 <5 <1 <2 <5 <1 <10 7/10/98 <1 <5 <1 <2 <5 <1 <5 10/7/98 <1 <5 <1 <2 <5 <1 <5 4/8/99 <1 <5 <1 <2 <5 <1 <5 7/21/99 <1 <5 <1 <2 <5 <1 <5 10/29/99 25 <5 5 7 <5 <1 <5 4/12/00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 7/26/00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 10/12/00 <0.500 1.60 <0.500 1.38 <0.500 <0.500 NA 4/5/01 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 NA 2/10/03 <0.50 2.7 <0.70 2.2 <0.50 <0.50 <1.0 3/9/04 <1.0 <2.0 <2.0 <6.0 <2.0 <2.0 <2.0 5/11/04 <1.0 <2.0 <2.0 <6.0 <2.0 <2.0 <2.0 8/3/04 <1.0 0.91 <2.0 <6.0 <2.0 <2.0 <2.0 12/3/04 <1.0 <2.0 <2.0 <6.0 <2.0 <2.0 <2.0 2/25/05 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 8/2/05 <1.0 <1.0 <1.0 <3.0 1.7 <1.0 <2.0 3/1/07 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <5.0 5/29/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <1.0 7/18/11 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/30/12 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/10/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 4/29/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/8/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 6/1/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <0.343/8/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-45 12/9/98 <1 <5 <1 <2 <5 <1 <10 1/26/99 <1 <5 <1 <2 <5 <1 NA 1/5/00 <1.0 <5.0 <1.0 <2.0 <5.0 <1.0 <5.0 7/18/00 <0.500 <0.500 <0.500 1.06 <0.500 <0.500 <0.500 10/10/00 <0.500 <0.500 1.00 1.62 <0.500 <0.500 NA 1/9/01 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 4/4/01 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 NA 1/9/02 <1.0 1.3 <1.0 1.3 <1.0 <1.0 <2.0 2/5/03 2.1 0.54 <0.70 <1.0 <0.50 <0.50 <1.0 2/20/04 <1.0 <2.0 <2.0 <6.0 <2.0 <2.0 <2.0 2/17/05 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 2/6/06 <1.0 <1.0 5.2 35.0 <1.0 <1.0 22.4 2/27/06 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 5/29/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <1.0 6/2/09 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 PIEDMONT GEOLOGIC, P.C.Page 20 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-45 6/1/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 7/13/11 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/29/12 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/9/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 4/23/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/5/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/25/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.53/8/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-46 12/9/98 <1 <5 <1 <2 <5 <1 <10 1/26/99 <1 <5 <1 <2 <5 <1 NA 1/5/00 <1.0 <5.0 <1.0 <2.0 <5.0 <1.0 <5.0 1/9/01 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 1/9/02 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 2/5/03 10.0 0.57 <0.70 <1.0 5.8 1.1 <1.0 2/24/04 <1.0 <2.0 <2.0 <6.0 5.8 <2.0 <2.0 2/17/05 <1.0 <1.0 <1.0 <3.0 7.2 <1.0 <2.0 2/6/06 <1.0 <1.0 <1.0 <3.0 5.5 <1.0 <2.0 2/27/07 8.3 <5.0 2.2 10.0 3.0 <1.0 <5.0 6/2/08 <1.0 <1.0 <1.0 <3.0 3.6 <1.0 <1.0 6/1/09 <1.0 <1.0 <1.0 <2.0 3.1 <1.0 <1.0 6/2/10 <1.0 <1.0 <1.0 <2.0 1.6 <1.0 <1.0 7/15/11 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/30/12 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/7/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 4/28/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/4/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/26/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.53/28/17 <1.00 <1.00 <1.00 <3.00 <1.00 <1.00 <5.00 MW-47 12/9/98 <1 <5 <1 <2 <5 <1 <10 1/26/99 <1 <5 <1 <2 <5 <1 NA 1/5/00 <1.0 <5.0 <1.0 <2.0 <5.0 <1.0 <5.0 1/9/01 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 1/9/02 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 2/5/03 1.8 0.61 <0.70 <1.0 <0.50 <0.50 <1.0 2/13/04 <1.0 <2.0 <2.0 <6.0 <2.0 0.54 <2.0 2/17/05 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 2/6/06 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <2.0 3/1/07 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 5/28/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <1.0 6/1/09 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 6/2/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 7/15/11 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/30/12 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/7/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 4/28/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/4/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/26/16 <1.0 <1.0 <1.0 <2.0 1.2 <1.0 <1.03/28/17 <1.00 <1.00 <1.00 <3.00 <1.00 <1.00 <5.00 MW-48 12/9/98 380 <5 <1 210 <5 17 20 1/26/99 360 <5 <1 180 <5 14 21 4/7/99 400 <5 <1 270 <5 24 50 7/21/99 740 <5 1 390 <5 32 98 10/26/99 820 <50 <10 440 <50 35 85 1/5/00 340 <50 <10 160 <50 26 <50 PIEDMONT GEOLOGIC, P.C.Page 21 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-48 4/12/00 46.8 <0.500 <0.500 29.4 4.70 18.7 7.21 7/18/00 498 1.17 1.68 208 <0.500 37.0 53.90 10/11/00 442 <2.00 <2.00 88.2 <2.00 <2.00 NA 1/12/01 480 0.940 1.38 126 <0.500 35.0 78.8 4/3/01 470 <10 <10 96 <10 50 NA 1/11/02 77 <2.0 <2.0 <2.0 <2.0 24 <4.0 2/5/03 238 <2.5 <3.5 <5.0 <2.5 24.0 9.2 2/25/04 32.9 <2.0 <2.0 1.4 <2.0 6.5 1.1 2/24/05 39.6 0.53 0.66 5.5 <1.0 21.0 2.9 2/17/06 23.2 <1.0 1.9 3.4 <1.0 19.2 2.7 2/22/07 28 <5.0 <1.0 4.0 <1.0 29 <5.0 6/4/08 18.6 <1.0 <1.0 <3.0 <1.0 52.3 3.2 6/4/09 16.9 <1.0 <1.0 <2.0 <1.0 57.6 1.0 6/3/10 16.1 <1.0 <1.0 <2.0 <1.0 56.6 <1.0 7/18/11 <1.0 <1.0 <1.0 <2.0 <1.0 5.9 <1.0 5/30/12 16.0 <1.0 <1.0 <2.0 <1.0 38.0 <1.0 5/7/13 3.3 <5.0 <1.0 <3.0 <1.0 32 <5.0 4/28/14 2.3 <1.0 <1.0 <2.0 <1.0 36.9 <1.0 5/5/15 1.3 <1.0 <1.0 <2.0 <1.0 32.6 <1.0 5/27/16 1.2 <1.0 <1.0 <2.0 <1.0 24.5 <0.343/7/17 1.2 <1.0 <1.0 <1.0 <1.0 27.0 1.8 MW-49 12/9/98 3 <5 <1 3 <5 <1 <10 1/22/99 <1 <5 <1 <2 <5 <1 NA 1/5/00 <1.0 <5.0 <1.0 <2.0 <5.0 <1.0 <5.0 1/12/01 6.01 <0.500 <0.500 <0.500 20.3 2.10 <0.500 2/5/03 12.4 0.66 <0.70 <1.0 28.5 4.6 <1.0 2/25/04 13.2 <2.0 <2.0 <6.0 37.2 4.8 <2.0 8/5/04 9.1 <2.0 <2.0 <6.0 28.0 4.9 <2.0 12/2/04 11.9 <2.0 <2.0 <6.0 36.7 4.8 <2.0 2/23/05 <1.0 <1.0 <1.0 <3.0 23.4 3.6 <2.0 8/1/05 8.7 <1.0 <1.0 <3.0 29.6 6.2 <2.0 2/17/06 14.0 <1.0 1.4 <3.0 38.0 6.0 1.2 2/22/07 7.1 <5.0 <1.0 <3.0 20 4.2 <5.0 6/3/08 4.5 <1.0 <1.0 <3.0 30.3 5.9 <1.0 6/1/09 4.3 <1.0 <1.0 <2.0 37.2 6.9 <1.0 6/2/10 2.5 <1.0 <1.0 <2.0 29.1 6.3 <1.0 7/18/11 1.8 <1.0 <1.0 <2.0 37.4 8.2 <1.0 5/31/12 1.5 <1.0 <1.0 <2.0 43.5 8.0 <1.0 5/8/13 1.1 <5.0 <1.0 <3.0 50 8.0 <5.0 4/28/14 2.4 <1.0 <1.0 <2.0 69.6 9.1 <1.0 5/5/15 6.8 <1.0 <1.0 <2.0 87.9 11.5 <1.0 5/27/16 15.9 <1.0 <1.0 <2.0 168 12.5 <0.34 3/9/17 17.4 <1.0 <1.0 <1.0 188 14.6 <1.0 11/24/20 2.16 <1.00 <1.00 <3.00 547 34.2 <5.001/18/23 1.15 <1.00 <1.00 <3.00 1,040 45.1 <5.00 MW-50 7/21/99 <1 <5 <1 <2 <5 <1 <5 10/27/99 <1 <5 <1 <2 <5 <1 <5 1/6/00 <1.0 <5.0 <1.0 <2.0 <5.0 <1.0 <5.0 1/12/01 9.17 <0.500 0.690 7.47 <0.500 <0.500 <0.500 1/11/02 4.2 1.8 <1.0 <1.0 <1.0 <1.0 <2.0 2/6/03 11.7 2.0 8.5 11.2 <0.50 <0.50 1.9 2/24/04 <1.0 <2.0 <2.0 <6.0 <2.0 <2.0 <2.0 2/24/05 0.57 0.60 <1.0 <3.0 <1.0 <1.0 <2.0 2/17/06 1.7 0.81 13.5 3.6 <1.0 <1.0 3.5 PIEDMONT GEOLOGIC, P.C.Page 22 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-50 2/22/07 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 6/3/08 <1.0 <1.0 1.2 6.3 <1.0 <1.0 <1.0 6/1/09 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 6/3/10 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 7/15/11 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/30/12 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/7/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <5.0 4/28/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/4/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/26/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.53/28/17 <1.00 1.05 <1.00 <3.00 <1.00 <1.00 <5.00 MW-51 7/20/99 6 <5 <1 <2 7 43 <5 10/26/99 2 <5 <1 <2 <5 45 <5 1/5/00 1.9 <5.0 <1.0 <2.0 <5.0 38 <5.0 1/12/01 1.52 1.14 <0.500 1.13 5.95 33.8 <0.500 2/5/03 <0.50 <0.50 <0.70 <1.0 5.6 25.1 <1.0 2/13/04 <1.0 <2.0 <2.0 <6.0 9.4 32.0 <2.0 2/24/05 <1.0 0.52 <1.0 <3.0 26.2 29.4 <2.0 2/17/06 <1.0 <1.0 1.5 <3.0 12.8 1.4 <2.0 2/22/07 <1.0 <5.0 <1.0 <3.0 100 44 <5.0 6/3/08 <1.0 <1.0 <1.0 <3.0 160 46.9 <1.0 6/1/09 <1.0 <1.0 <1.0 <2.0 224 50.9 <1.0 6/2/10 <2.0 <2.0 <2.0 <4.0 316 70.1 <2.0 7/18/11 <2.0 <2.0 <2.0 <4.0 386 62.4 <2.0 6/1/12 <2.5 21.1 <2.5 <5.0 415 63.1 <2.5 5/10/13 <1.0 <5.0 <1.0 <3.0 320 45 <5.0 4/29/14 <4.0 <4.0 <4.0 <8.0 163 13.0 <4.0 5/5/15 <4.0 <4.0 <4.0 <8.0 215 6.2 <4.0 5/27/16 <4.0 <4.0 <4.0 <8.0 469 15.3 <0.343/9/17 <5.0 <5.0 <5.0 <5.0 829 16.7 <5.0 MW-52 7/12/13 38 <5.0 2.5 26 <1.0 <1.0 <5.0 11/11/13 192 9.4 12.1 128 <1.0 <1.0 3.4 4/22/14 2.3 <1.0 <1.0 3.2 <1.0 <1.0 <1.0 10/14/14 48.9 6.6 15.2 139 <1.0 <1.0 3.9 5/6/15 2.9 <1.0 1.3 17.8 <1.0 <1.0 <1.0 11/24/15 <0.25 <0.26 <0.30 <0.66 <0.21 <0.24 <1.5 5/31/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <0.34 10/24/16 1.1 <1.0 5.0 49.4 <1.0 <1.0 <1.53/8/17 1.5 <1.0 10.9 98.3 <1.0 <1.0 3.0 MW-53 7/12/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <3.0 11/11/13 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 4/22/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 10/13/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/6/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 11/23/15 <0.25 <0.26 <0.30 <0.66 <0.21 <0.24 <1.5 5/25/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.5 10/24/16 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.53/8/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-54 7/12/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 <3.0 11/11/13 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 4/22/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 10/13/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/6/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 11/23/15 <0.25 <0.26 <0.30 <0.66 <0.21 <0.24 <1.5 PIEDMONT GEOLOGIC, P.C.Page 23 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) MW-54 5/25/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.5 10/24/16 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.53/8/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-55 7/12/13 3.4 <5.0 39 74 2.1 <1.0 190 11/11/13 21.4 <5.0 38.6 37.3 <5.0 <5.0 182 4/22/14 <5.0 <5.0 34.7 23.8 <5.0 <5.0 157 10/13/14 2.9 <1.0 31.5 2.6 <1.0 <1.0 24.7 5/6/15 2.4 <1.0 19.5 4.2 <1.0 <1.0 21.8 11/23/15 2.2 <0.26 21.7 5.4 0.63 <0.24 <1.5 5/31/16 3.0 <1.0 25.5 10.1 <1.0 <1.0 19.4 10/24/16 2.0 <1.0 19.0 5.6 <1.0 <1.0 17.23/8/17 1.8 <1.0 18.2 4.1 <1.0 <1.0 27.0 MW-56 7/12/13 <1.0 <5.0 <1.0 <3.0 <1.0 <1.0 110 11/11/13 <10.0 <10.0 <10.0 <20.0 <10.0 <10.0 78.2 4/22/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 27.6 10/13/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 71.0 5/6/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 21.1 11/23/15 <0.25 <0.26 <0.30 <0.66 <0.21 <0.24 <1.5 5/31/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 7.3 10/24/16 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 12.73/8/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 24.6 MW-57 3/6/17 <1.0 <1.0 <1.0 <1.0 4.0 1.4 <1.0 10/9/17 8.49 <1.00 <1.00 <3.00 13.6 3.34 <5.001/18/23 39.9 <1.00 <1.00 3.49 33.6 1.97 10.4 MW-58 3/6/17 161 <1.0 <1.0 50.4 32.8 5.4 24.4 10/9/17 3.19 <1.00 <1.00 <3.00 6.75 3.83 <5.001/19/23 175 <1.00 <1.00 13.4 38.9 3.21 23.3 MW-59 3/6/17 1,280 <10.0 11.2 573 326 21.2 253 10/9/17 1,290 <25.0 <25.0 614 130 <25.0 3271/19/23 903 <1.00 4.01 261 123 9.85 202 MW-60 3/8/17 1,300 67.4 22.2 886 649 <10.0 87.9 10/9/17 1,460 78.9 <50.0 1,020 721 <50.0 <2501/17/23 1,920 28.0 16.9 316 393 1.72 58.2 SME-8 12/12/91 620 1,600 100 660 NA NA 60 2/20/98 13,000 17,000 1,800 12,000 1,100 <100 450 10/12/00 323 362 67.2 239 71.9 <0.500 NA 7/3/01 17,000 12,000 2,800 9,500 12,000 <500 1,100 10/11/01 18,000 15,000 2,800 9,700 12,000 <500 NA 1/10/02 12,000 12,000 2,300 8,990 19,000 <500 6,800 9/5/02 1,100 2,100 <500 5,500 11,000 <500 <1,000 12/17/02 710 960 170 850 8,300 <50 160 2/12/03 3,030 2,870 1,340 7,330 12,400 <100 415 2/24/04 2,110 393 1,460 6,290 10,400 <400 531 2/23/05 969 89.1 1,020 3,400 3,250 <10 534 2/8/06 750 85.8 1,600 5,250 1,640 <100 649 8/3/06 190 <100 870 2,500 520 <20 440 2/27/07 390 <100 1,100 2,800 770 <20 480 5/30/08 211 <5.0 198 605 939 <5.0 75.8 12/18/08 22.9 1.9 55.8 140 108 <1.0 75.8 5/27/09 2.2 <1.0 3.2 6.9 10.6 <1.0 3.2 11/3/09 182 2.1 45.6 121 352 <1.0 44.5 6/4/10 1.6 <1.0 <1.0 2.1 5.4 <1.0 <1.0 11/23/10 2.4 <1.0 1.7 2.0 15.0 <1.0 3.5 7/18/11 1.9 <1.0 1.1 <2.0 16.6 <1.0 <1.0 PIEDMONT GEOLOGIC, P.C.Page 24 of 25 HISTORICAL SUMMARY OF GROUNDWATER ANALYSIS RESULTS: GROUNDWATER MONITORING WELLS TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Well Date Benzene Toluene Ethylbenzene Xylenes MTBE 1,2-DCA Naphthalene (µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L)(µg/L) SME-8 5/30/12 1.6 <1.0 1.1 2.2 20.9 <1.0 <1.0 5/13/13 2.0 <5.0 <1.0 <3.0 13 <1.0 <5.0 4/24/14 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/8/15 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 5/31/16 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <0.343/8/17 1.2 1.5 1.8 2.0 <1.0 <1.0 2.8 SME-9 2/27/07 1,300 <250 540 200 12,000 <50 420 8/8/07 1,000 <2,500 <500 <1,500 14,000 <500 <2,500 5/30/08 423 50 166 <150 6,980 <50.0 144 12/18/08 524 <50 182 <100 7,040 <50.0 186 6/4/09 506 <50 173 <100 4,950 <50.0 183 11/3/09 628 <50.0 304 53.6 5,500 <50.0 255 6/4/10 929 22.5 583 92.0 3,970 <20.0 256 11/24/10 459 13.9 399 43.7 888 <10.0 175 7/14/11 400 16.1 479 56.3 388 <2.5 211 6/1/12 253 13.7 505 52.7 76.5 <4.0 189 5/10/13 140 <25 260 <15 21 <5.0 100 4/24/14 155 7.3 262 <10.0 24.4 <5.0 264 5/8/15 120 5.4 121 <10.0 14.4 <5.0 138 6/1/16 148 6.6 104 <2.0 14.5 <1.0 20.43/10/17 103 7.4 46.4 1.3 12.8 <1.0 152 SME-10 1/28/99 2,200 <50 380 150 <50 <10 NA 1/7/00 1,800 <50 390 150 <50 <10 220 1/15/01 1,850 119 519 251 <5.00 <5.00 311 2/10/03 62.8 27.3 13.9 44.3 4.6 10 13.6 2/24/04 969 147 112 367 14.2 30.5 328 2/23/05 1,410 176 115 669 30.9 <10 313 2/9/06 513 18.4 73.4 166 20.5 13.5 143 8/3/06 4.8 <5.0 35 26 <1.0 <1.0 12 2/27/07 640 11 52 120 17 11 86 8/8/07 710 <1,200 <250 <750 <250 <250 <1,200 5/30/08 44.6 2.3 9.0 20.1 7.6 3.2 15.0 5/27/09 55.4 6.0 2.3 17.6 4.8 4.8 13.9 6/4/10 240 9.0 8.9 102 26.9 10.7 15.8 7/19/11 367 15.0 74.9 320 4.6 5.1 103 5/30/12 107 5.6 59.6 256 3.3 2.5 89.8 5/13/13 24 <5.0 15 86 1.8 1.4 33 4/24/14 26.3 <1.0 13.0 40.7 1.0 1.1 17.7 5/8/15 16.2 <1.0 4.9 29.0 1.0 <1.0 15.2 5/31/16 4.6 <1.0 <1.0 2.4 <1.0 <1.0 <0.343/10/17 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 SME-12 3/1/07 <1.0 <5.0 17 29 <1.0 <1.0 23 NA = Not analyzed. ND = Not detected. NAPL = Well not sampled due to presence of NAPL. PIEDMONT GEOLOGIC, P.C.Page 25 of 25 Request to Abandon Site Monitoring and Remediation Wells TransMontaigne-Greensboro Terminal April 13, 2023 PIEDMONT GEOLOGIC, P.C. ATTACHMENT 4 GRAPHS AND MANN-KENDALL TEST SHEETS MW-19: DISSOLVED COC CONCENTRATIONS vs. TIME TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Dec-02Jun-03Dec-03Jun-04Dec-04Jun-05Dec-05Jun-06Dec-06Jun-07Dec-07Jun-08Dec-08Jun-09Dec-09Jun-10Dec-10Jun-11Dec-11Jun-12Dec-12Jun-13Dec-13Jun-14Dec-14Jun-15Dec-15Jun-16Dec-16Jun-17Date 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 14,000 Dissolved COC Concentration (ug/L)Legend Benzene MTBE Naphthalene MW-35: DISSOLVED COC CONCENTRATIONS vs. TIME TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Dec-02Jun-03Dec-03Jun-04Dec-04Jun-05Dec-05Jun-06Dec-06Jun-07Dec-07Jun-08Dec-08Jun-09Dec-09Jun-10Dec-10Jun-11Dec-11Jun-12Dec-12Jun-13Dec-13Jun-14Dec-14Jun-15Dec-15Jun-16Dec-16Jun-17Date 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 Dissolved COC Concentration (ug/L)Legend Benzene MTBE Naphthalene MW-36: DISSOLVED COC CONCENTRATIONS vs. TIME TransMontaigne - Greensboro Terminal 6801 W. Market St. Greensboro, North Carolina Jun-10Dec-10Jun-11Dec-11Jun-12Dec-12Jun-13Dec-13Jun-14Dec-14Jun-15Dec-15Jun-16Dec-16Jun-17Date 0 25 50 75 100 125 150 175 200 225 Dissolved COC Concentration (ug/L)Legend Benzene Naphthalene Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:Benzene Naphthalene Sampling SamplingEventDate 1 12-Nov-13 37.8 301 2 25-Apr-14 33.6 342 3 14-Oct-14 10.9 126 4 8-May-15 31.8 336 5 24-Nov-15 22.9 336 6 1-Jun-16 9.7 79.9 7 25-Oct-16 8.7 96.8 8 10-Mar-17 8 93.8 9 10 11 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.62 0.58Mann-Kendall Statistic (S):-24 -13 Confidence Factor:99.9%92.9% Concentration Trend:Decreasing Prob. Decreasing Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water, 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com MW-19 CONCENTRATION (ug/L) 21-Mar-23 TransMontaigne-Greensboro MW-19 GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Pete Dressel 2320 1 10 100 1000 05/13 11/13 06/14 12/14 07/15 01/16 08/16 03/17 09/17Concentration (ug/L)Sampling Date Benzene Naphthalene Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:Benzene MTBE Naphthalene Sampling SamplingEventDate 1 12-Nov-13 229 156 142 2 23-Apr-14 152 68.8 271 3 14-Oct-14 202 167 137 4 8-May-15 243 172 206 5 24-Nov-15 159 113 15.9 6 1-Jun-16 136 150 72.3 7 25-Oct-16 122 141 83.9 8 9-Mar-17 129 340 116 9 10 11 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.27 0.48 0.61Mann-Kendall Statistic (S):-16 6 -10 Confidence Factor:96.9%72.6%86.2% Concentration Trend:Decreasing No Trend Stable Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water, 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com MW-35 CONCENTRATION (ug/L) 21-Mar-23 TransMontaigne-Greensboro MW-35 GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Pete Dressel 2320 1 10 100 1000 05/13 11/13 06/14 12/14 07/15 01/16 08/16 03/17 09/17Concentration (ug/L)Sampling Date Benzene MTBE Naphthalene Evaluation Date:Job ID: Facility Name:Constituent: Conducted By:Concentration Units:ug/L Sampling Point ID:Benzene Naphthalene Sampling SamplingEventDate 1 12-Nov-13 10.9 24.3 2 23-Apr-14 11.7 20.3 3 14-Oct-14 35.3 219 4 8-May-15 11.2 28.8 5 24-Nov-15 11.5 3 6 1-Jun-16 7.4 10.3 7 25-Oct-16 7.4 16.5 8 10-Mar-17 10.3 66.7 9 10 11 12 13 14 15 16 17 18 19 20 Coefficient of Variation:0.69 1.47Mann-Kendall Statistic (S):-11 -2 Confidence Factor:88.7%54.8% Concentration Trend:Stable No Trend Notes: 1.At least four independent sampling events per well are required for calculating the trend. Methodology is valid for 4 to 40 samples. 2.Confidence in Trend = Confidence (in percent) that constituent concentration is increasing (S>0) or decreasing (S<0): >95% = Increasing or Decreasing; ≥ 90% = Probably Increasing or Probably Decreasing; < 90% and S>0 = No Trend; < 90%, S≤0, and COV ≥ 1 = No Trend; < 90% and COV < 1 = Stable. 3.Methodology based on "MAROS: A Decision Support System for Optimizing Monitoring Plans", J.J. Aziz, M. Ling, H.S. Rifai, C.J. Newell, and J.R. Gonzales, Ground Water, 41(3):355-367, 2003. DISCLAIMER: The GSI Mann-Kendall Toolkit is available "as is". Considerable care has been exercised in preparing this software product; however, no party, including without limitation GSI Environmental Inc., makes any representation or warranty regarding the accuracy, correctness, or completeness of the information contained herein, and no such party shall be liable for any direct, indirect, consequential, incidental or other damages resulting from the use of this product or the information contained herein. Information in this publication is subject to change without notice. GSI Environmental Inc., disclaims any responsibility or obligation to update the information contained herein. GSI Environmental Inc., www.gsi-net.com MW-36 CONCENTRATION (ug/L) 21-Mar-23 TransMontaigne-Greensboro MW-36 GSI MANN-KENDALL TOOLKIT for Constituent Trend Analysis Pete Dressel 2320 1 10 100 1000 05/13 11/13 06/14 12/14 07/15 01/16 08/16 03/17 09/17Concentration (ug/L)Sampling Date Benzene Naphthalene Request to Abandon Site Monitoring and Remediation Wells TransMontaigne-Greensboro Terminal April 13, 2023 PIEDMONT GEOLOGIC, P.C. ATTACHMENT 5 PROFESSIONAL CERTIFICATION