Remedial Action Progress Report

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Remedial Action Progress Report — January 2009 through December 2009

UNC Chapel Hill Airport Road Waste Disposal Area Chapel Hill, North Carolina

July 2010

Table of Contents

1. Introduction 1-1

2. Groundwater Remediation System 2-1

2.1 Treatment System Operation and Maintenance 2-1

2.2 Treatment System Sampling 2-2

2.2.1 Monthly OWASA Discharge Permit Sampling 2-2

2.2.2 Air Discharge Effluent Sampling 2-3

3. Annual Groundwater and Surface Water Sampling Event 3-1

3.1 Groundwater Flow Direction 3-1

3.2 Groundwater Parameters 3-2

3.3 Groundwater Sample Analytical Results 3-2

3.4 Historical Groundwater Analytical Trends 3-3

3.5 Surface Water Analytical Results 3-4

4. Summary 4-1

4.1 Groundwater Remediation System O&M 4-1

4.2 Groundwater Remediation System Monthly OWASA Sampling 4-1

4.3 Air Discharge Effluent Sampling 4-1

4.4 Groundwater Sampling 4-2

4.5 Surface Water Sampling 4-2

4.6 Conclusions 4-3

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Table of Contents

Tables

1 Groundwater Remediation System Sampling and Operation and Maintenance Record, October 2006 through December 2009

2 Summary of Groundwater Treatment System Effluent Sample Results

3 Summary of Air Stripper Discharge Sample Results

4 Summary of VER Discharge Sample Results

5 Summary of Monitor Well and Recovery Well Construction Details

6 Water-Level Elevations in Monitor Wells and Recovery Wells, November 2, 2009

7 Historical Groundwater Elevation Data

8 Groundwater Sampling Data for Samples Collected from Monitor Wells in November 2009

9 Summary of Analytical Results for Groundwater Samples Collected in November 2009

10 Historical Groundwater Analytical Data

11 Summary of Analytical Results for Surface Water Samples Collected in November 2009

Figures

1 Site Location

2 Monitor Well and Recovery Well Location Map

3 Groundwater Potentiometric Surface of the Shallow Aquifer - November 2009

4 Groundwater Potentiometric Surface of the Bedrock Aquifer - November 2009

5 Benzene Isoconcentration Contour Map of the Shallow Aquifer - November 2009

6 Chloroform Isoconcentration Contour Map of the Shallow Aquifer -November 2009

7 Methylene Chloride Isoconcentration Contour Map of the Shallow Aquifer -November 2009

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Table of Contents

8 Diethyl Ether Isoconcentration Contour Map of the Shallow Aquifer -November 2009

9 Benzene Isoconcentration Contour Map of the Bedrock Aquifer -November 2009

10 Chloroform Isoconcentration Contour Map of the Bedrock Aquifer -November 2009

11 Diethyl Ether Isoconcentration Contour Map of the Bedrock Aquifer -November 2009

12 Benzene Isoconcentration Cross Section - November 2009

13 Diethyl Ether Isoconcentration Cross Section - November 2009

Appendices

A Discharge Monitoring Reports

B Laboratory Analytical Data Reports for Groundwater Samples

C Laboratory Analytical Data Reports for Air Discharge Samples

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Introduction

1. Introduction

ARCADIS G&M of North Carolina, Inc. (ARCADIS) prepared this report on behalf of the University of North Carolina at Chapel Hill (UNC) to document remedial action progress and performance of the groundwater remediation system at the UNC Airport Road Waste Disposal Area (the site). The site is located near the intersection of Municipal Drive and Animal Shelter Road and is shown on Figure 1.

This site is being remediated under the Registered Environmental Consultant (REC) Program. As required by the REC program implementation guidance, this report is the seventh Remedial Action Progress Report submitted since certification of the Groundwater Remediation System Construction Completion Report on October 25, 2006. As four consecutive quarterly reports were submitted in 2007, REC program guidelines allows for submittal of a single annual report detailing all groundwater remedial activities over the past year. This report is the second annual report and covers the reporting period of January 2009 through December 2009.

This report discusses the operation and maintenance (O&M) of the groundwater remediation system for the period, along with results of the required groundwater effluent sampling and air discharge sampling. The selected remedial option for the site consists of groundwater extraction using electric submersible pumps and dual phase (groundwater/soil vapor) recovery utilizing vacuum-enhanced recovery (VER). Treated groundwater is discharged to the Orange Water and Sewer Authority (OWASA) sewer system under OWASA discharge permit #010. The groundwater remediation system became fully operational on October 5, 2006.

This report also contains the results of the November 2009 annual groundwater and surface water monitoring event. The samples were collected from 28 monitor wells, 4 vapor extraction and recovery wells, 6 recovery wells, and 5 surface water sample locations to evaluate overall effectiveness of the groundwater remediation efforts.

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Groundwater Remediation System

2. Groundwater Remediation System

The groundwater remediation system was installed at the site in the summer of 2006, and the system became fully operational on October 5, 2006. The groundwater remediation system consists of four vapor extraction and recovery (VER) wells (designated VER-1 through VER-4), three shallow recovery wells (designated as SRW-1 through SRW-3) and three deep recovery wells (designated as DRW-1 through DRW-3) as shown on Figure 2. Groundwater from the VER wells and shallow recovery wells is pumped into a settling tank, followed by bag filtration. This flow then joins groundwater pumped from the deep recovery wells and the combined flow enters the air stripper. Following treatment by the air stripper, the water is pumped to OWASA Manhole 47C4001 where it is discharged into the OWASA sewer system.

2.1 Treatment System Operation and Maintenance

The groundwater remediation system is inspected by ARCADIS personnel on a monthly basis. System operational information recorded during the site checks includes readings from the various pressure and flow gauges located on the bag filter, influent flow meters, air stripper, VER system, effluent pump, and effluent totalizer. Minor adjustments are made to keep the system operating as efficiently as possible. Maintenance activities include changing of the cloth bag filter. Monthly O&M activities include collecting readings from the various flow meters and pressure gauges at each well head, as well as cleaning of the air stripper and removal of accumulated sediment from the settling tank.

A record of system O&M activities conducted from October 2006, when the system was first activated, through December 2009 is included in Table 1. The information presented on Table 1 includes descriptions of the activities and the dates on which the activities were performed.

The groundwater remediation system and recovery wells were generally operational between January 2009 and December 2009, with the exception of approximately 1.5 weeks in March 2009. During this time the system was partially operational due to faulty motor starters associated with the groundwater treatment system air stripper. The starters were replaced on March 12, 2009 and the system restarted. There were no major repairs performed during this period beyond normal cleaning.

Based on the totalizer reading recorded at the treatment system on December 21, 2009, approximately 19,397,452 gallons of impacted groundwater have been extracted from




the site and treated and discharged since the system was first activated on October 5, 2006.

2.2 Treatment System Sampling

Treatment system sampling consists of collection of groundwater effluent samples to monitor the quality of water entering the OWASA system and also collection of air discharge samples from the air stripper and VER system. The following sections describe the sampling in greater detail.

2.2.1 Monthly OWASA Discharge Permit Sampling

Following start up of the groundwater remediation system, monthly collection of treated groundwater samples was performed as per the requirements of the OWASA discharge permit #010, which became effective on June 1, 2006. The permit requires monthly discharge sampling and monthly reporting for the first year of system operation followed by monthly sampling and quarterly reporting for subsequent years. The first year of operation was completed as of October 2007 and as such the reporting frequency was adjusted to quarterly. Monthly effluent sampling will continue for the duration of the permit.

The treatment system effluent samples were analyzed for volatile organic compounds (VOCs) and arsenic, chromium, copper, lead, zinc and mercury. Samples designated for analysis of VOCs, arsenic, chromium, copper, lead, and zinc were submitted to TestAmerica in Savannah, Georgia for analysis. Samples designated for analysis of mercury were submitted to TestAmerica in Pensacola, Florida for analysis.

System effluent samples were collected on January 15, 2009, February 13, 2009, March 18, 2009, April 6, 2009, May 18, 2009, June 5, 2009, July 21, 2009, August 13, 2009, September 18, 2009, October 12, 2009, November 20, 2009, and December 21, 2009, for reporting to OWASA.

The analytical results from all effluent monitoring events (Table 2) indicate the groundwater treatment system is effectively treating the extracted groundwater. In 2009, all parameters were in compliance with OWASA discharge limits for the respective monitoring period.

Quarterly discharge monitoring reports (DMR) were generated for the January to March 2009 monitoring period, April to June 2009 monitoring period, July to




September 2009 monitoring period and October to December 2009 monitoring period. Copies of the DMRs are included in Appendix A. The laboratory analytical reports associated with the groundwater treatment system effluent samples are included in Appendix B.

2.2.2 Air Discharge Effluent Sampling

In addition to the OWASA effluent sampling, air discharge samples were collected from the air stripper and VER system on a regular basis upon commencement of system operations. Samples were collected during the monitoring period on April 6, 2009. The sampling frequency is semi-annual as outlined in the schedule for the monitoring program contained in the Construction Completion Report: Groundwater Remediation System dated October 2006. However, only one air discharge sampling event was conducted in 2009 due to an oversight.

Air samples collected in the field remained in the custody of an ARCADIS employee until hand delivered to the laboratory. Air sample analytical services were provided by Research Triangle Park Laboratories. All air samples were analyzed for VOCs by EPA Method TO-15.

The analytical results from the air discharge sampling events associated with the air stripper and the VER system are presented in Table 3 and Table 4, respectively. The analytical data were converted to daily mass flow in pounds per day using the raw data and the air flow information collected during each monitoring event. The converted data indicates a total average of 0.33 pounds per day of volatile organics for the combined discharge from both the air stripper and VER system for the period of January 2009 through December 2009. Extrapolated for a year, this average would be 120 pounds per year or approximately 0.06 tons. This volume is well below the 5 tons per year required for an air quality permit.

Monitoring of air quality from the air stripper and VER system will continue on a semi-annual basis through the next reporting period as per the monitoring schedule contained in the Construction Completion Report: Groundwater Remediation System dated October 2006. Copies of the air quality laboratory reports are included in Appendix C.



Annual Groundwater and Surface Water Sampling Event

3. Annual Groundwater and Surface Water Sampling Event

The results of the field measurements collected from the site monitor wells are presented in this section along with the analytical results for the November 2009 groundwater and surface water sampling event. The locations of the site monitor wells, recovery wells, and surface water sample points are shown on Figure 2. The construction details for site monitor wells and recovery wells are listed on Table 5.

3.1 Groundwater Flow Direction

Water-level measurements from tops of casings were collected from the site wells on November 2, 2009, to determine the groundwater flow direction at the site. The water-level measurements were converted to water-level elevations using existing monitor well top of casing elevation data. The depth-to-water measurements and the converted water-level elevations for the November 2009 gauging event are listed on Table 6.

The water-level elevations in the shallow monitor wells ranged from 448.64 feet above mean sea level (ft msl) in downgradient well MW-25 to 479.18 ft msl in upgradient well MW-3, located near the source area. In the bedrock aquifer, water-level elevations ranged from 386.69 ft msl in downgradient monitor well MW-35 to 474.10 in monitor well MW-28 which is located upgradient of the source area.

The water-level elevations in the monitor wells adjacent to, or near, recovery wells are most directly affected by the active pumping of the recovery wells. Since the activation of the recovery wells in October 2006, water-level elevations in site monitor wells located near the recovery wells have decreased slightly to significantly depending on the proximity of the monitor well relative to the recovery wells. Historical depth-to-water measurements and groundwater elevation data for the site monitor wells are presented in Table 7.

Water-level contour maps for the November 2009 sampling event were prepared for the surficial and bedrock aquifers using the water-level elevation data from the wells (Figures 3 and 4, respectively). Based on the information presented on Figures 3 and 4, the overall groundwater flow direction in the surficial and bedrock aquifers is generally towards the north and northeast. In comparing the groundwater flow map created with the November 2009 water-level elevation data to the numerous historic potentiometric surface maps that have been created for the site, it is apparent that the groundwater recovery system has altered the groundwater flow pattern at the site.




Based on the November 2009 water level data, the capture zone created by the groundwater extraction wells extends from the VER wells north/northwest to the SRW series of recovery wells and northeast toward deep recovery wells DRW-2 and DRW-3.

3.2 Groundwater Parameters

The field groundwater parameters for temperature, pH, and specific conductance were measured for samples collected from monitor wells during the November 2009 sampling event. The last set of temperature, pH, and specific conductance measurements that were recorded prior to sampling the monitor wells are presented in Table 8. The temperature, pH, and specific conductance ranges for the monitoring wells were as follows: 14.90 to 19.90 (degrees Celsius), 5.28 to 9.69 (standard units), and 87 to 2,175 (µmhos), respectively. The temperature, pH, and specific conductance measurements collected during the November 2009 sampling event are consistent with the measurements collected during previous monitor well sampling events.

3.3 Groundwater Sample Analytical Results

Groundwater samples were collected from 28 monitor wells, 4 vapor extraction and recovery wells, and 6 recovery wells during the November 2009 groundwater sampling event. The analytical results for the November 2009 groundwater sampling event are summarized in Table 9. A copy of the laboratory analytical data report associated with this sampling event is included in Appendix B.

Based on the laboratory data report for the November 2009 sampling event, benzene, chloroform, chloromethane, 1,2-dichloroethane, diethyl ether, methylene chloride, methyl turt-butyl ether (MTBE), 1,1,2,2-tetrachloroethene, trichloroethene, vinyl chloride, and xylene were reported at concentrations above North Carolina Groundwater Standards. The highest concentrations of these compounds were seen in monitor wells MW-1 and MW-2, located immediately downgradient of the source area, with decreasing concentrations further downgradient. The one exception was MTBE which was only detected in one monitor well (bedrock well MW-36) which is located approximately 1,000 feet lateral gradient of the waste disposal area and within approximately 100 feet of Airport Road (now referred to as Martin Luther King Jr. Boulevard). Based on the fact that MTBE has never been detected at the site in any other wells, and that the timeframe for use of MTBE began in the 1980s (well after burial activities were suspended at the waste disposal area), it appears that the




detection of MTBE in well MW-36 is likely related to an offsite release of gasoline. It is possible that a gasoline release on or near Airport Road (now referred to as Martin Luther King Jr. Boulevard) is the cause of the MTBE detections in well MW-36.

Contaminant isoconcentration contour maps for benzene, chloroform, methylene chloride, and diethyl ether are presented for the shallow unconsolidated aquifer in Figures 5, 6, 7, and 8, respectively. Isoconcentration contour maps for benzene, chloroform, and diethyl ether are presented for the bedrock aquifer in Figures 9, 10, and 11, respectively. The maps were created using the data from the November 2009 sampling event, and historical data was also considered in the placement of the contours. Isoconcentration contour cross section maps for benzene and diethyl ether have been prepared and are included as Figures 12 and 13, respectively. Historical groundwater analytical data for site monitor wells are presented in Table 10.

Overall the groundwater analytical data from the November 2009 groundwater sampling event indicates that the existing monitor well network has defined the extent of impacted groundwater at the site.

3.4 Historical Groundwater Analytical Trends

The groundwater analytical data obtained during the November 2009 sampling event indicate localized decreases in specific VOC concentrations since activation of the groundwater remediation system. VOC concentration reductions have been observed primarily in the shallow monitor wells MW-1, MW-2, MW-6 and MW-12, and the bedrock monitor wells MW-11, MW-15 and MW-31. Monitor wells MW-1 and MW-2 are located in close proximity to the VER wells, downgradient of the source area, while monitor well MW-12 is located between SRW-2 and SRW-3. Monitor wells MW-11 and MW-15 are adjacent to DRW-2 and DRW-1 respectively. The general decrease in VOC concentrations, especially in monitor wells located in the vicinity of recovery wells, suggests the groundwater remediation system is effectively reducing groundwater contaminant concentrations at the site. The analytical results for these wells will be further evaluated during future monitoring events to determine if these trends continue. In addition, the groundwater at well MW-36 will continue to be monitored for the presence of MTBE and the potential source of the MTBE will be further evaluated.




3.5 Surface Water Analytical Results

Surface water samples were collected from sample locations SW-2, SW-3, SW-4, SW-5, and SW-6 and analyzed for VOCs during the November 2009 monitoring event. Surface water sample locations are shown on Figure 2 and tabulated analytical results are displayed on Table 11. Analytical results indicate that no VOCs were detected above laboratory reporting limits in any of the surface water samples collected.



Summary

4. Summary

This section provides a summary of the groundwater remediation system O&M activities and system sampling activities conducted for the performance monitoring period of January 2009 through December 2009. This section also provides a summary of the analytical results for the groundwater and surface water sampling event conducted at the site in November 2009. The data collected during the performance monitoring period documented in this report indicate that the groundwater remediation system is effectively extracting and treating impacted groundwater, and that the impacted groundwater plume at the site is adequately defined by the existing monitor well network.

4.1 Groundwater Remediation System O&M

The groundwater remediation system is inspected by ARCADIS personnel on a regular basis. System operational information recorded during the site checks includes readings from the various pressure and flow gauges located on the bag filter, influent flow meters, air stripper, VER system, effluent pump, and effluent totalizer. Minor adjustments are made to keep the system operating as efficiently as possible. Regular maintenance activities include changing of the cloth bag filter. Monthly O&M activities include collecting readings from the various flow meters and pressure gauges at each well head, as well as cleaning of the air stripper and effluent transfer pump.

Based on the totalizer reading at the treatment system on December 21, 2009, approximately 19,397,452 gallons of impacted groundwater have been pumped from the site recovery wells and treated and discharged since the system was activated on October 5, 2006.

4.2 Groundwater Remediation System Monthly OWASA Sampling

The sampling of the effluent entering the OWASA system was conducted on a monthly basis. The analytical data from the monthly sampling events indicate the groundwater treatment system is sufficiently removing the constituents of concern from the discharge. In 2009, all parameters were in compliance with the OWASA discharge limits.

4.3 Air Discharge Effluent Sampling

The air discharge sampling performed on the effluent discharge of the air stripper and the VER system during the operational period indicated that on average, 0.33 pounds



Summary

per day of VOCs are being generated from the groundwater remediation system. This value extrapolated over a period of a year indicates the total VOC discharge will be approximately 0.06 tons which is well below the 5 tons per year limit for an air discharge permit.

4.4 Groundwater Sampling

Water-level measurements were collected from site monitor wells and recovery wells during the November 2009 monitor well sampling event. The depth-to-water measurements and the converted water-level elevation data for the shallow and bedrock monitor wells indicate that groundwater is flowing north and northeast across the site.

The groundwater flow pattern derived using the November 2009 water level elevation data indicates that the groundwater recovery system has altered groundwater flow at the site in comparison to previous static water-level elevation measurement events. The groundwater extraction system has created a capture zone that extends from the VER wells north/northwest to the SRW series of recovery wells and northeast toward deep recovery wells DRW-2 and DRW-3.

Groundwater samples were collected from 28 monitor wells, 4 vapor extraction and recovery wells, and 6 recovery wells during the November 2009 annual sampling event and the samples were analyzed for VOCs. The analytical results from the November 2009 groundwater sampling event indicate that benzene, chloroform, chloromethane, 1,2-dichloroethane, diethyl ether, methylene chloride, MTBE, 1,1,2,2-tetrachloroethene, trichloroethene, vinyl chloride, and xylene were reported at concentrations above North Carolina Groundwater Standards. The concentrations of some of these constituents have been reduced at specific well locations due to the operation of the groundwater remediation system. The detection of MTBE in well MW-36 will continue to be monitored and the potential source of the MTBE will be further evaluated.

4.5 Surface Water Sampling

Surface water samples were collected from sample locations SW-2, SW-3, SW-4, SW-5, and SW-6 and analyzed for VOCs during the November 2009 sampling event. Analytical results indicate that no VOCs were detected above laboratory reporting limits in any of the surface water samples collected.



Summary

4.6 Conclusions

The data generated for the UNC Airport Road Waste Disposal Area during 2009 continues to indicate that the extent of impacted groundwater is well understood, and that the impacted groundwater plume is contained onsite. Furthermore, the active groundwater remediation system appears to be effective at containing and recovering the impacted groundwater and reduced contaminant concentrations have been observed at several monitor well locations. Operation of the groundwater remediation system will continue through 2010 with the next Remedial Action Progress Report being submitted in the first quarter of 2011.



Tables

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Table 1. Groundwater Remediation System Sampling and Operation and Maintenance Record October 2009 through December 2009, UNC Airport Road Waste Disposal Area, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.

Date Personnel On-Site Maintenance Activity/Comments System Status Samples Collected System Totalizer Reading

(gallons)

Gallons Pumped During

Period (gallons)

OWASA Totalizer Reading

Average Daily Flow for Period (gallons)

Period Start Period End

10/5/2006 A. Pinnix Groundwater remediation system startup. Water extracted from the Running No 0 system's recovery wells was treated by the system air stripper and pumped into a frac tank to allow for testing prior to discharge to the OWASA sanitary sewer system.

10/6/2006 A. Pinnix Sample collection - Discharge #1 was obtained with all wells online Running - Shut Effluent (VOCs and Mercury) 0 except for DRW-1, SRW-2 and SRW-3. Discharge #2 was obtained down end of day with all wells online except DRW-1

10/12/2006 A. Pinnix Permission obtained from OWASA to commmence discharge of Not running No 0 water from frac tank into the sanitary sewer system connection.

10/13/2006 A. Pinnix Completed pumping 11,000 gallons of water from the frac tank into Running No 11,000 Not Recorded the OWASA system. Groundwater remediation system was restarted and treated water was discharged directly into OWASA system. Water level sensor issue on LRP knock out tank -progressive cavity pump is not shutting off when low level water sensor is activated - LRP was shut down.

10/26/2006 A. Pinnix On-site to collect samples for weekly sampling program. Collect Running Air Stripper and LRP (EPA Method 18) Not recorded NA Not Recorded VER and air stripper discharge samples.

11/3/2006 C. Kalinowski On-site to collect samples for weekly sampling program. All Running Effluent (VOCs, Metals, Mercury) 328,945 328,945 Not Recorded 11342.93 10/5/2006 11/3/2006 shallow wells and DRW-3 were off when I arrived (wells were shut Transfer Tank (Metals) off by UNC). These wells were turned on for sampling. Noticed Air Stripper Vapors (VOCs) that low level switch in settling tank was activating transfer pump erratically due to waves in tank. Resolved by briefly turning hand switch to off, then restarting. UNC reported problem with this as well, and that a fault in the pump had caused a high level alarm earlier in the day. We will need to install 1/4"-sampling port on air stripper influent and purchase a handpump to collect vapor samples from LRP effluent. DRW-3 and SRW wells turned off after sampling.

11/15/2006 C. Kalinowski On-site to collect samples for weekly sampling program, perform Running Effluent (VOCs, Metals, Mercury) 531,530 202,585 W. Rawls system check, and record water level readings at site monitor wells. Influent (VOCs, Metals, Mercury)

Larry has reported some problems with improper activation of the Transfer Tank (Metals) high level switch for the settling tank and the low level switch in the Air Stripper Vapors (TO-15) KO Pot. Will need to check/repair floats and clean air stripper LRP Vapors (TO-15) during next O&M event with SAEDACCO.

11/21/2006 C. Kalinowski On-site to collect samples for weekly sampling program. Larry is Running Effluent (VOCs, Metals, Mercury) 623,680 92,150 599,930 not operating DRW-1 (pump in off position) and VER-1. All other Influent (VOCs, Metals, Mercury) systems operating properly. Still need to repair vac gauge for VER- Transfer Tank (Metals) 4. Air Stripper Vapors (VOCs) Larry added approx. 2 gallons of oil to LRP. VER Discharge (VOCs)

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Date

11/27/2006

11/30/2006

12/8/2006

12/14/2006

12/15/2006

12/22/2006

Personnel On-Site

C. Kalinowski

A. Pinnix J. Shilliday

C. Kalinowski

C. Kalinowski L. Daw

SAEDACCO

C. Kalinowski L. Daw

SAEDACCO

W.Rawls Adam Tripp

Maintenance Activity/Comments

On-site to collect samples for weekly sampling program. All wells (except VER-1) are turned on. System appears to be operating properly.

On-site to meet with contractors for source removal and to check water levels.

On-site for weekly system check

On-site for monthly system O&M and to adjust water level sensors in the recovery wells. Cleaned air stripper; disassembled knockout tank and KO tank filter. (KO tank and filter were clean). Air stripper had some fairly significant buildup of iron "sludge", but impact on performance of air stripper was likely minimal (holes in trays still open). Suggest cleaning every 2-3 months.

Finished changing water level sensor depths in DRW-1, DRW-3, SRW-1, SRW-2, and SRW-3. Poured concrete pad inside well vault for VER-3 to try to stop air leaks around well head. Lots of iron buildup in SRW-1 which required cleaning of Grundfos pump impellers - suggest performing on quarterly basis. New water level sensors appear to have helped recovery at shallow wells. DRW-1 left off.

On-site for weekly O&M

System Status Samples Collected

Running Effluent (VOCs, Metals, Mercury) Influent (VOCs, Metals, Mercury) Transfer Tank (Metals) Air Stripper Vapors (VOCs) VER Discharge (VOCs)

Running None

Running None

Running/Deactivated Air Stripper Vapors (VOCs) VER Discharge (VOCs)

Deactivated/Restarte None d

Running Air Stripper Vapors (VOCs) VER Discharge (VOCs)

System Totalizer Reading

(gallons)

752,770

790,355

874,105

972,670

972,670

1,093,200


Period (gallons)

129,090

37,585

83,750

98,565

0

120,530


720,270

754,575

832,470

Not Recorded

Not Recorded

1,034,000



1/5/2007

1/10/2007

1/26/2007

1/31/2007

2/6/2007

C. Kalinowski

C. Kalinowski

W.Rawls

SAEDACCO, L. Daw

W.Rawls

On-site for weekly O&M and system vapor sampling and OWASA Sampling. Pitot tube for air stripper exhaust was clogged with moisture - worked correctly after cleaning.

Weekly O&M and vapor sampling


Monthly O&M.

Effluent sampling

Running

Running

Running

Running

Effluent (VOCs, metals, mercury) Air Stripper Vapors (VOC

Air Stripper Vapors VER Discharge Air Stripper Vapors VER Discharge

Effluent (VOCs, RCRA metals, and Mercury)

1,327,125

1,403,150

1,645,133

Not recorded

Not recorded

233,925

76,025

241,983

NA

NA

1,244,780

Not Recorded

1,527,650

Not recorded

Not recorded


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(gallons)


Period (gallons)




2/16/2007

2/27/2007

2/28/2007

W.Rawls

SAEDACCO, L. Daw

W.Rawls


SAEDACCO on-site for monthly O&M. Air stripper was pressure washed and level switch in settling tank was repaired. Effluent sampling and system check

Running

Running

Air Stripper Vapors VER Discharge

Effluent (VOCs, RCRA metals, and Mercury)

Not recorded

Not recorded

2,208,915

NA

NA

563,782

Not recorded

Not recorded

Not recorded 17,084 1/26/2007 2/28/2007

3/2/2007 W.Rawls Weekly O&M and vapor sampling Running Air Stripper Vapors VER Discharge

2,249,085 40,170 Not recorded 20,085 2/28/2007 3/2/2007

3/9/2007 W.Rawls Weekly O&M Running None 2,381,465 132,380 Not recorded 18,911 3/2/2007 3/9/2007

4/2/2007

4/3/2007

W.Rawls, PRM

PRM

System check; PRM on-site to replace oil-leak from LRP

Richard Byers completed repairs to LRP. Should have been covered under waranty.

Running

Running

Effluent (VOCs, RCRA metals, and Mercury); Air Stripper Vapors, and VER discharge None

2,834,060

Not recorded

452,595

-

2,548,700

Not Recorded

18,858 3/9/2007 4/2/2007

4/24/2007

4/30/2007

SAEDACCO, L. Daw

W.Rawls

Monthly O&M - repairs to influent manifold, replace hoses. New pressure gauge on progressive cavity pump, purchase/install new light bulbs for equipment room. Effluent sampling, AS & VER discharge sampling, system check

Running

Running

None

Effluent (VOCs, RCRA metals, and Mercury); Air Stripper Vapors, and VER discharge

Not recorded

3,359,217

-

525,157

Not Recorded

2,982,180 18,756 4/2/2007 4/30/2007

5/8/2007

5/15/2007

L. Daw

W.Rawls

VER-1 line has become plugged with silt/sediment and is turned off. Larry would like SAEDACCO to blow line out with water/compressed air. Level sensors in KO tank are OK, but may need to replace with a float tree assembly in the future. Effluent sampling, system check

Running

Running

None

Effluent (VOCs, RCRA metals, and Mercury);

Not recorded

3,638,735

NA

279,518

Not Recorded

3,208,190 18,635 4/30/2007 5/15/2007

5/31/2007

6/8/2007

C. Kalinowski, L.Daw, SAEDACCO

W.Rawls, J.Tillotson

System O&M. Blow out VER lines. Clean out pumps at SRW1 and SRW2. Pressure wash air stripper. Will install new float tree tomorrow. Effluent sampling, air discharge sampling, system check

Running

Running

None

Effluent (VOCs, RCRA metals, and Mercury); Air stripper and VER discharge samples

3,932,340

4,081,200

293,605

148,860

3,441,050

3,558,820

18,350

18,608

5/15/2007

5/31/2007

5/31/2007

6/8/2007

6/26/2007

7/13/2007

8/9/2007

SAEDACCO, L. Daw

J. Tilotson

W.Rawls, SAEDACCO

Monthly system O&M. Installed new float tree on KO tank. Progressvie cavity pump needs new stator. Effluent Sampling

Monthly system check. Measured water levels in VERs and piezometers in disposal area. Met Saedacco on-site.

Running

Running

Running

None

Effluent (VOCs, RCRA metals and Mercury) Effluent (VOCs, RCRA metals and Mercury)

Not recorded

4,669,480

5,074,568

NA

588,280

405,088

Not Recorded

4,015,671

4,505,574

16,808

15,003

6/8/2007

7/13/2007

7/13/2007

8/9/2007

9/6/2007 9/13/2007

SAEDACCO, L. Daw D. Twamley

SAEDACCO on-site for monthly O&M. On-site to collect monthly effluent and vapor samples

Running Running

None Effluent (VOCs, RCRA metals and Mercury), AS Vapors, SVE Vapors

Not recorded 5,394,169

-319,601

Not Recorded 4,638,212 9,131 8/9/2007 9/13/2007


of 7



(gallons)


Period (gallons)




10/3/2007

10/19/2007

10/31/2007

11/15/2007

12/19/2007

D. Twamley and A. Tripp On-site for groundwater sampling event. Collected effluent samples and performed plant check.

L. Daw The LRP shut off and appears to have blown a fuse in the control panel. Larry contacted SAEDADDO and they will be making repairs. Expected to be up and running on 10/31/07

OWASA OWASA changed out meter Old meter # 06906224 (4995200 gallons) New Meter# 06908005 (0 gallons)

D. Twamley On-site to collect monthly effluent and vapor samples. Remediation system check.

SAEDACCO, L. Daw Monthly O&M, and panel repairs (replaced hour meter on LRP)

Running

Running/LRP off

Running

Running

Effluent (VOCs, RCRA metals and Mercury), AS Vapors, SVE Vapors None


5,562,749

Not recorded

Not recorded

5,973,268

Not recorded

168,580

-

410,519

-

4,782,600

Not Recorded

4,995,200

157,180

Not Recorded

8,429

9,547

9/13/2007

10/3/2007

10/3/2007

11/15/2007

12/26/2007 D. Twamley On-site to collect monthly effluent and vapor samples. Remediation system check.

Running Effluent (VOCs, RCRA metals and Mercury), AS Vapors, SVE Vapors

6,496,010 522,742 623,990 12,750 11/15/2007 12/26/2007

1/16/2008 D. Twamley On-site to collect monthly effluent and vapor samples. Remediation system check.


6,819,605 323,595 909,230 15,409 12/26/2007 1/16/2008

1/18/2008 SAEDACCO, L. Daw On-site for monthly system O&M. Cleaned and replaced gaskets on the air stripper. Clean SRW-1 pump.

Running None Not recorded - Not Recorded

2/11/2008

2/21/2008

D. Twamley

SAEDACCO

On-site to collect monthly effluent and vapor samples. Remediation system check. On-site for monthly system O&M.

Running

Running


7,331,289

Not recorded

511,684

-

1,287,884

Not Recorded

19,680 1/16/2008 2/11/2008

3/5/2008

3/7/2008

D. Twamley

SAEDACCO

On-site to collect monthly effluent and vapor samples. Remediation system check. On-site for monthly system O&M.

Running

Running


7,723,300

Not recorded

392,011

-

1,632,800

Not Recorded

17,044 2/11/2008 3/5/2008

4/3/2008

4/8/2008

D. Twamley

SAEDACCO

On-site to collect monthly effluent samples. Remediation system check. On-site for monthly system O&M.

Running

Running

Effluent (VOCs, RCRA metals and LL Mercury) None

8,185,117

Not recorded

461,817

-

2,108,650

Not Recorded

15,925 3/5/2008 4/3/2008

5/1/2008

5/20/2008

D. Twamley

SAEDACCO

On-site to collect monthly effluent samples. Remediation system check. On-site for monthly system O&M.

Running

Running


8,642,522

Not recorded

457,405

-

2,571,369

Not Recorded

16,336 4/3/2008 5/1/2008

6/13/2008

7/2/2008

D. Twamley

A.Tripp

On-site to collect monthly effluent samples. Remediation system check. On-site to resample effluent due to copper detection from 6/13.

Running

Running

Effluent (VOCs, RCRA metals and LL Mercury) Effluent (copper only)

9,316,430

9,604,900

673,908

288,470

3,243,730

Not Recorded

15,672

15,183

5/1/2008

6/13/2008

6/13/2008

7/2/2008

7/8/2008 A. Tripp On-site to collect totalizer readings Running None 9,707,500 102,600 3,626,032 17,100 7/2/2008 7/8/2008

7/14/2008 SAEDACCO On-site for monthly system O&M. Running None Not recorded - Not Recorded

8/14/2008 SAEDACCO On-site for monthly system O&M. Running None Not recorded - Not Recorded


of 7



(gallons)


Period (gallons)




8/20/2008 D. Twamley On-site to collect monthly effluent samples. Remediation system check.

Running Effluent (VOCs, RCRA metals and LL Mercury)

10,209,366 501,866 4,119,210 11,671 7/8/2008 8/20/2008

9/2/2008 SAEDACCO, L. Daw On-site for monthly system O&M. Cleaned air stripper trays. Replaced Influent flow gauge.

Running None Not recorded - Not Recorded

9/5/2008

9/22/2008

10/9/2008

D. Twamley

D. Twamley, L. Daw

D. Twamley

On-site to collect monthly effluent samples. Remediation system check.

On-site to collect semiannual vapor samples. Check valve in LRP allowing oil to pass into knock out tank. LRP shutdown and SAEDACCO called for maintenance.

On-site to collect monthly effluent samples. Remediation system check.

Running

Running

Running

Effluent (VOCs, RCRA metals and LL Mercury)

Air Stripper and VER Discharge (TO-15)

Effluent (VOCs, RCRA metals and LL Mercury)

10,417,805

10,601,100

10,918,030

208,439

183,295

316,930

4,321,245

4,499,230

4,805,300

13,027

10,782

18,643

8/20/2008

9/5/2008

9/22/2008

9/5/2008

9/22/2008

10/9/2008



11,435,535 517,505 5,284,410 17,845 10/9/2008 11/7/2008

11/11/2008 SAEDACCO On-site for monthly system O&M. Cleaned air stripper trays. Running None Not recorded - Not Recorded



12,025,325 589,790 5,823,215 18,431 11/7/2008 12/9/2008

12/11/2008 SAEDACCO On-site for monthly system O&M. Cleaned air stripper trays Running None Not recorded - Not Recorded

1/12/2009 SAEDACCO On-site for monthly system O&M. Cleaned air stripper trays Running None Not recorded - Not Recorded

1/15/2009 D. Twamley On-site to collect monthly effluent samples. Remediation system check. LRP is down for repairs.


12,782,895 757,570 6,500,590 20,475 12/9/2008 1/15/2009

2/3/2009

2/13/2009

3/4/2009

D. Twamley, SAEDACCO On-site to gauge infiltration gallery wells. SAEDACCO onsite to fix and restart LRP.

D. Twamley On-site to collect monthly effluent samples. Remediation system check.

D. Twamley On-site to drop off lower gasket for LRP. LRP was running but shallow and deep recovery wells are shutdown due to an electrical problem. SAEDACCO has been called for diagnostics. System probably went down on 3/1/09.

Running

Running

Not running/LRP on

None


13,143,125

13,355,250

13,692,535

360,230

212,125

337,285

6,812,030

7,002,180

7,299,570

18,959

21,213

17,752

1/15/2009

2/3/2009

2/13/2009

2/3/2009

2/13/2009

3/4/2009

3/11/2009 SAEDACCO On-site for monthly system cleaning and O&M. AS trays cleaned. Electrical problem with recovery well pump motors. Motor starters are malfunctioning, parts ordered for expedited delivery.

Not running/LRP on None 13,692,535 0 7,299,571 0 3/4/2009 3/11/2009

3/12/2009 SAEDACCO Replaced 4 contactors and 1 overload protector. Tim (SAEDACCO) replaced motor starters at control panel. System was restarted.

Not running /Running

None 13,692,535 0 7,299,572 0 3/11/2009 3/12/2009


of 7



(gallons)


Period (gallons)






13,858,810 166,275 7,445,950 11,877 3/4/2009 3/18/2009

4/6/2009 D. Twamley / SAEDACCO

On-site to collect monthly effluent and vapor samples. Remediation system check. SAEDACCO on-site to perform monthly system cleaning and O&M activities.


14,284,308 425,498 7,816,150 22,395 3/18/2009 4/6/2009

5/13/2009 SAEDACCO On-site for monthly system cleaning and O&M. AS trays descaled and recovery well pumps cleaned.

Running None NR NR



15,226,410 942,102 132,410 22,431 4/6/2009 5/18/2009


Running None NR NR



15,599,300 372,890 322,700 20,716 5/18/2009 6/5/2009

7/19/2009 D. Twamley On-site for remediation system check. Running None 16,532,370 933,070 872,200 21,206 6/5/2009 7/19/2009



16,570,731 38,361 896,280 19,181 7/19/2009 7/21/2009


Running None NR NR


Running None NR NR



16,981,425 410,694 1,157,660 17,856 7/21/2009 8/13/2009


Running None NR NR



17,516,125 534,700 1,501,970 14,853 8/13/2009 9/18/2009


Running None NR NR



17,891,015 374,890 1,758,720 15,620 9/18/2009 10/12/2009


Running None NR NR



18,608,120 717,105 2,199,740 18,387 10/12/2009 11/20/2009


of 7



(gallons)


Period (gallons)





Running None NR NR



19,397,452 789,332 2,629,315 25,462 11/20/2009 12/21/2009


of 7

Table 2. Summary of Groundwater Treatment System Effluent Sample Results, UNC Airport Road Waste Disposal Area, The University of North Carolina at Chapel Hill, North Carolina.

OWASA Maximum Allowable Discharge

Parameter Concentration Groundwater Treatment System Effluent Samples

10/6/2006* 11/3/2006 11/15/2006 11/21/2006 11/27/2006 1/5/2007 2/6/2007

Benzene (µg/L) 100 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0

Chloroform (µg/L) 100 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0

1,2-Dichloroethane (µg/L) 71 3.4 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0

Methylene Chloride (µg/L) 930 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0

1,1,2,2-Tetrachloroethane (µg/L) 30 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0

Arsenic (µg/L) 16 -- < 10 < 10 < 10 < 10 < 10 < 10

Chromium (µg/L) 50 -- < 10 < 10 < 10 < 10 < 10 < 10

Copper (µg/L) 60 -- < 20 < 20 < 20 < 20 < 20 43

Lead (µg/L) 49 -- < 5.0 < 5.0 < 5.0 6.6 < 5.0 < 5.0

Zinc (µg/L) 535 -- 74 58 33 94 73 82

Mercury (ng/L) 50 9.7 2.0 18.0 0.59 6.0 1.2 1.5

* No samples collected on October 6, 2006 for arsenic, chromium, copper or lead µg/L Micrograms per liter ng/L Nanograms per liter

of 7




2/28/2007 4/2/2007 4/30/2007 5/15/2007 6/8/2007 7/13/2007 8/9/2007

Benzene (µg/L) 100 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0

Chloroform (µg/L) 100 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0

1,2-Dichloroethane (µg/L) 71 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0



Arsenic (µg/L) 16 < 10 < 10 < 10 < 10 < 10 < 10 < 10

Chromium (µg/L) 50 < 10 < 10 < 10 < 10 < 10 < 10 < 10

Copper (µg/L) 60 23 <20 <20 <20 <20 69 / <20** <20

Lead (µg/L) 49 7.4 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0

Zinc (µg/L) 535 86 41 20 <20 55 83 <20

Mercury (ng/L) 50 2.3 5.6 1.0 7.3 3.6 0.6 <0.5

** Resample data from August 8, 2007 µg/L Micrograms per liter ng/L Nanograms per liter

of 7




9/13/2007 10/3/2007 11/15/2007 12/26/2007 1/16/2008 2/1/2008 2/11/2008

Benzene (µg/L) 100 < 1.0 < 1.0 2.2 <1.0 < 1.0 -- < 1.0

Chloroform (µg/L) 100 < 1.0 < 1.0 3.9 <1.0 1.0 -- < 1.0

1,2-Dichloroethane (µg/L) 71 < 1.0 < 1.0 11 <1.0 1.3 -- 1.8

Methylene Chloride (µg/L) 930 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 -- < 10

1,1,2,2-Tetrachloroethane (µg/L) 30 < 1.0 < 1.0 < 1.0 <1.0 < 1.0 -- < 1.0

Arsenic (µg/L) 16 < 10 < 10 < 10 <10 < 10 -- < 10

Chromium (µg/L) 50 < 10 < 10 < 10 <10 < 10 -- < 10

Copper (µg/L) 60 25 48 < 20 <20 89 < 20 < 20

Lead (µg/L) 49 16 43 < 5.0 <5.0 8.8 -- < 5.0

Zinc (µg/L) 535 < 20 32 34 31 190 -- 20

Mercury (ng/L) 50 < 0.50 2.9 4.6 0.95 0.56 -- 4.8

µg/L Micrograms per liter ng/L Nanograms per liter

of 7




3/5/2008 4/3/2008 5/1/2008 6/13/2008 7/1/2008 8/20/2008 9/5/2008

Benzene (µg/L) 100 < 1.0 < 1.0 < 1.0 < 1.0 -- < 1.0 < 1.0

Chloroform (µg/L) 100 < 1.0 < 1.0 < 1.0 < 1.0 -- < 1.0 < 1.0

1,2-Dichloroethane (µg/L) 71 < 1.0 < 1.0 < 1.0 1.8 -- < 1.0 < 1.0

Methylene Chloride (µg/L) 930 < 5.0 < 5.0 < 5.0 < 5.0 -- < 5.0 < 5.0

1,1,2,2-Tetrachloroethane (µg/L) 30 < 1.0 < 1.0 < 1.0 < 1.0 -- < 1.0 < 1.0

Arsenic (µg/L) 16 < 10 < 10 < 10 < 10 -- < 10 < 10

Chromium (µg/L) 50 < 10 < 10 < 10 < 10 -- < 10 < 10

Copper (µg/L) 60 < 20 < 20 < 20 100 22 < 20 < 20

Lead (µg/L) 49 < 5.0 < 5.0 < 5.0 22 -- < 5.0 < 5.0

Zinc (µg/L) 535 < 20 < 20 21 250 -- < 20 < 20

Mercury (ng/L) 50 1.2 0.63 2.5 *** 0.5 -- < 0.50 0.53

*** Sample collected on 5/12/2008. NM Not Measured µg/L Micrograms per liter ng/L Nanograms per liter

of 7




10/9/2008 11/7/2008 12/9/2008 1/15/2009 2/13/2009 3/18/2009 4/6/2009

Benzene (µg/L) 100 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0

Chloroform (µg/L) 100 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0

1,2-Dichloroethane (µg/L) 71 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0



Arsenic (µg/L) 16 < 10 < 10 < 10 < 10 < 10 < 10 < 10

Chromium (µg/L) 50 < 10 < 10 < 10 < 10 < 10 < 10 < 10

Copper (µg/L) 60 < 20 < 20 < 20 < 20 < 20 < 20 < 20

Lead (µg/L) 49 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0 < 5.0

Zinc (µg/L) 535 < 20 < 20 < 20 < 20 < 20 31 < 20

Mercury (ng/L) 50 0.68 0.6 1.2 0.54 0.65 2.4 3.2


of 7




5/18/2009 6/5/2009 7/21/2009 8/13/2009 9/18/2009 10/12/2009 11/20/2009

Benzene (µg/L) 100 < 1.0 < 1.0 15 < 1.0 < 1.0 < 1.0 < 1.0

Chloroform (µg/L) 100 < 1.0 < 1.0 1.2 < 1.0 < 1.0 < 1.0 < 1.0

1,2-Dichloroethane (µg/L) 71 < 1.0 < 1.0 41 < 1.0 1.1 < 1.0 < 1.0



Arsenic (µg/L) 16 < 10 < 20 < 20 < 20 < 20 < 20 < 20

Chromium (µg/L) 50 < 10 < 10 < 10 < 10 < 10 < 10 < 10

Copper (µg/L) 60 < 20 < 20 < 20 < 20 < 20 < 20 < 20

Lead (µg/L) 49 < 5.0 < 10 < 10 < 10 < 10 < 10 < 10

Zinc (µg/L) 535 < 20 39 < 20 < 20 < 20 < 20 24

Mercury (ng/L) 50 0.83 4.9 0.62 0.68 1.7 < 0.50 < 0.50


of 7




12/21/2009

Benzene (µg/L) 100 < 1.0

Chloroform (µg/L) 100 < 1.0

1,2-Dichloroethane (µg/L) 71 1.6

Methylene Chloride (µg/L) 930 < 5.0

1,1,2,2-Tetrachloroethane (µg/L) 30 < 1.0

Arsenic (µg/L) 16 < 20

Chromium (µg/L) 50 < 10

Copper (µg/L) 60 < 20

Lead (µg/L) 49 < 10

Zinc (µg/L) 535 < 20

Mercury (ng/L) 50 0.67


Table 3. Summary of Air Stripper Discharge Sample Results, UNC Airport Road Waste Disposal Area, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina. Page 1 of 3

Sample ID.: Air Stripper Air Stripper Air Stripper Air Stripper Air Stripper Air Stripper Air Stripper Air Stripper Discharge Discharge Discharge Discharge Discharge Discharge Discharge Discharge

Constituents Date Sampled: 10/26/2006 11/3/2006 11/15/2006 11/21/2006 11/27/2006 12/14/2006 12/22/2006 1/5/2007

Air Stripper Discharge Pipe (6 inch diameter) Vapor Flow Rate (cfm) 385 385 385 420 360 360 360 360 Vapor Temperature (degrees celcius) 20 20 20 20 20 20 20 20 Vapor Flow Rate (m3/day) 16632 16632 16632 18144 15552 15552 15552 15552 Discharge Velocity (ft/sec) 8.17 8.17 8.17 8.91 7.64 7.64 7.64 7.64

Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Volatile Organics (ppbv) Molecular Weight Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate (USEPA Method TO-15 GC/MS) (g/mol) ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day

Dichlorodifluoromethane (Freon 12) 120.91 1,2-Chloro-1,1,2,2-Tetrafluorethane 170.92 Chloromethane 50.49 Vinyl chloride 62.50 1,3-Butadiene 54.09 Bromomethane 94.94 0.56 0.00 0.00 Cloroethane 64.51 Trichloromonofluoromethane 137.37 8.10 0.0 0.00 1.43 0.0 0.00 1.65 0.0 0.00 1,1-Dichloroethene 96.94 1,1,2-Trichloro-1,2,2-trifluoroethane 187.38 Ethanol 46.07 37.55 0.1 0.00 Carbon Disulfide 76.14 Isopropyl alcohol 60.10 31.60 0.1 0.00 9.85 0.0 0.00 10.20 0.0 0.00 22.54 0.1 0.00 7.32 0.0 0.00 5.68 0.01 0.00 Methylene Chloride 84.93 1,042.19 3.6 0.13 88.31 0.3 0.01 18.91 0.1 0.00 367.94 1.3 0.04 33.5 0.12 0.00 Acetone 58.08 872.78 2.1 0.08 232.42 0.6 0.02 269.51 0.6 0.02 226.68 0.5 0.02 173.06 0.4 0.01 451.53 1.1 0.04 59.25 0.1 0.00 25.91 0.06 0.00 t-1,2-dichloroethene 96.94 Hexane 86.18 7.59 0.0 0.00 1.49 0.01 0.00 Methyl-t-butyl ether (MTBE) 88.15 4.84 0.0 0.00 1,1-Dichloroethane 98.96 Vinyl acetate 86.09 3.18 0.0 0.00 1.86 0.0 0.00 1.50 0.0 0.00 cis-1,2-dichloroethene 96.94 Cyclohexane 84.18 9.17 0.0 0.00 12.16 0.04 0.00 Chloroform 119.38 339.43 1.7 0.06 265.93 1.3 0.05 263.52 1.3 0.05 65.90 0.3 0.01 14.78 0.1 0.00 99.69 0.5 0.02 23.70 0.1 0.00 11.29 0.06 0.00 Ethyl Acetate 88.10 3.90 0.0 0.00 4.54 0.0 0.00 5.76 0.0 0.00 11.61 0.0 0.00 8.34 0.0 0.00 4.31 0.0 0.00 4.95 0.02 0.00 Tetrahydrofuran 72.11 854.74 2.5 0.09 281.96 0.8 0.03 28.75 0.1 0.00 7.25 0.0 0.00 32.91 0.1 0.00 239.50 0.7 0.02 3.69 0.0 0.00 1.73 0.01 0.00 1,1,1-Trichloroethane 133.40 Carbon Tetrachloride 153.82 2-Butanone 72.11 Heptane 100.2 4.45 0.0 0.00 2.37 0.0 0.00 Benzene 78.11 112.86 0.4 0.01 237.71 0.8 0.03 183.41 0.6 0.02 50.31 0.2 0.01 68.40 0.2 0.01 99.58 0.3 0.01 24.78 0.1 0.00 5.51 0.02 0.00 1,2-Dichloroethane 98.96 66.28 0.3 0.01 130.96 0.5 0.02 12.54 0.1 0.00 7.90 0.0 0.00 34.51 0.1 0.00 51.26 0.2 0.01 Trichloroethylene 131.39 10.14 0.1 0.00 17.16 0.1 0.00 13.14 0.1 0.00 4.51 0.0 0.00 2.57 0.0 0.00 7.12 0.0 0.00 2.98 0.0 0.00 4.90 0.03 0.00 1,2-Dichloropropane 112.99 Bromodichloromethane 163.83 1,4-Dioxane 88.11 32.77 0.1 0.00 21.07 0.1 0.00 16.17 0.1 0.00 Cis-1,3-Dichloropropene 110.97 Toluene 92.14 9.73 0.0 0.00 13.90 0.1 0.00 10.79 0.0 0.00 8.37 0.0 0.00 11.19 0.0 0.00 5.25 0.0 0.00 4.10 0.02 0.00 4-Methyl-2-pentanone (MIBK) 100.16 12.25 0.1 0.00 57.71 0.2 0.01 7.72 0.0 0.00 9.19 0.0 0.00 17.99 0.1 0.00 7.74 0.03 0.00 t-1,2-dichloropropene 110.97 Tetrachloroethylene 165.83 1,1,2-Trichloroethane 133.40 Dibromochloromethane 208.28 1,2-Dibromoethane 187.86 2-Hexanone 100.16 Ethylbenzene 106.17 1.43 0.01 0.00 Chlorobenzene 112.56 5.56 0.0 0.00 2.17 0.0 0.00 2.27 0.0 0.00 5.06 0.0 0.00 m/p-Xylene 106.17 5.70 0.0 0.00 4.66 0.0 0.00 9.94 0.0 0.00 6.78 0.0 0.00 3.76 0.0 0.00 5.91 0.0 0.00 4.88 0.0 0.00 1.78 0.01 0.00 o-Xylene 106.17 1.60 0.0 0.00 1.46 0.0 0.00 2.38 0.0 0.00 1.51 0.0 0.00 1.26 0.0 0.00 0.41 0.00 0.00 Styrene 104.15 3.68 0.0 0.00 5.88 0.0 0.00 0.41 0.0 0.00 0.34 0.0 0.00 0.14 0.00 0.00 Tribromomethane 252.73 9.68 0.1 0.00 14.34 0.1 0.01 0.95 0.0 0.00 1.63 0.0 0.00 0.89 0.01 0.00 1,1,2,2-Tetrachloroethane 167.85 1.41 0.01 0.00 1-Ethyl-4-Methylbenzene 120.19 1,3,5-Trimethylbenzene 120.19 1.94 0.0 0.00 0.80 0.0 0.00 1.28 0.0 0.00 0.94 0.0 0.00 0.86 0.0 0.00 1.56 0.0 0.00 0.29 0.00 0.00 1,2,4-Trimethylbenzene 120.19 2.54 0.0 0.00 1.09 0.0 0.00 1.78 0.0 0.00 2.06 0.0 0.00 1.32 0.0 0.00 1.84 0.0 0.00 0.39 0.00 0.00 1,3-Dichlorobenzene 147.01 7.93 0.0 0.00 1.26 0.0 0.00 0.45 0.00 0.00 1,4-Dichlorobenzene 147.01 Benzyl Chloride 126.59 1,2-Dichlorobenzene 147.01 1,1,2,3,4,4-hexachloro-1,2-butadiene 260.76 1,2,4-Trichlorobenzene 181.45

total lbs/day 0.40 0.18 0.12 0.05 0.04 0.15 0.02 0.02

Calculated values *Conversion from ppvb to mg/m3: mg/m3 = (ppbv/1000)*(MW)/24.45 mg/m3 milligrams per cubic meter lbs/day pounds per day cfm cubic feet per minute m3/day cubic meters per day ft/sec feet per second ppbv parts per billion by volume

Average air stripper discharge 0.08 lbs/day average based on 2006-2009 data

Calculated Average Discharge of Volatile Organics Summary of air discharge calculations

0.08 lbs/day - Air Stripper Effluent Discharge 3.78 lbs/day - VER System Effluent Discharge 3.87 lbs/day -Total Discharge from Air Stripper and VER System

1411 lbs/year or 0.71 tons/year baed on 2006-2009 data

G:\ENV\UNIVNC\Airport Road\NC000239.0018\2009 Remedial System Report\Tables\Tables 3 and 4 Air Quality Data.xlsx


Sample ID.: Air Stripper Air Stripper Air Stripper Air Stripper Air Stripper Air Stripper Air Stripper Air Stripper Air Stripper Discharge Discharge Discharge Discharge Discharge Discharge Discharge Discharge Discharge

Constituents Date Sampled: 1/10/2007 1/26/2007 2/16/2007 3/2/2007 4/2/2007 4/30/2007 6/8/2007 8/9/2007 9/13/2007

Air Stripper Discharge Pipe (6 inch diameter) Vapor Flow Rate (cfm) 360 360 360 360 360 360 440 500 500 Vapor Temperature (degrees celcius) 20 20 20 20 20 20 20 20 20 Vapor Flow Rate (m3/day) 15552 15552 15552 15552 15552 15552 19008 21600 21600 Discharge Velocity (ft/sec) 7.64 7.64 7.64 7.64 7.64 7.64 9.34 10.61 10.61

Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Volatile Organics (ppbv) Molecular Weight Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate (USEPA Method TO-15 GC/MS) (g/mol) ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day

Dichlorodifluoromethane (Freon 12) 120.91 1,2-Chloro-1,1,2,2-Tetrafluorethane 170.92 Chloromethane 50.49 Vinyl chloride 62.50 1,3-Butadiene 54.09 Bromomethane 94.94 0.30 0.00 0.00 4.84 0.02 0.00 2.40 0.01 0.00 1.49 0.01 0.00 Cloroethane 64.51 Trichloromonofluoromethane 137.37 1,1-Dichloroethene 96.94 1,1,2-Trichloro-1,2,2-trifluoroethane 187.38 Ethanol 46.07 38.63 0.07 0.00 19.07 0.04 0.00 17.9 0.03 0.00 Carbon Disulfide 76.14 Isopropyl alcohol 60.10 9.09 0.02 0.00 20.94 0.05 0.00 25.29 0.06 0.00 2.69 0.01 0.00 19.49 0.05 0.00 6.05 0.01 0.00 8.80 0.02 0.00 14.69 0.04 0.00 14.74 0.04 0.00 Methylene Chloride 84.93 385.93 1.34 0.05 84 0.29 0.01 80.77 0.28 0.01 289.06 1.00 0.03 11.27 0.04 0.00 Acetone 58.08 403.38 0.96 0.03 301.36 0.72 0.02 32.81 0.08 0.00 16.61 0.04 0.00 334.31 0.79 0.03 72.32 0.17 0.01 78.98 0.19 0.01 87.91 0.21 0.01 130.76 0.31 0.01 t-1,2-dichloroethene 96.94 Hexane 86.18 29.51 0.10 0.00 1.77 0.01 0.00 2.70 0.01 0.00 3.57 0.01 0.00 9.84 0.03 0.00 43.67 0.15 0.01 Methyl-t-butyl ether (MTBE) 88.15 8.11 0.03 0.00 1,1-Dichloroethane 98.96 Vinyl acetate 86.09 cis-1,2-dichloroethene 96.94 Cyclohexane 84.18 9.53 0.03 0.00 22.05 0.08 0.00 19.39 0.07 0.00 70.27 0.24 0.01 7.99 0.03 0.00 3.56 0.01 0.00 7.03 0.02 0.00 7.35 0.03 0.00 7.22 0.02 0.00 Chloroform 119.38 126.54 0.62 0.02 6.66 0.03 0.00 7.59 0.04 0.00 22.88 0.11 0.00 74.83 0.37 0.01 2.77 0.01 0.00 3.08 0.02 0.00 6.16 0.03 0.00 3.63 0.02 0.00 Ethyl Acetate 88.10 6.50 0.02 0.00 11.61 0.04 0.00 10.19 0.04 0.00 29.68 0.11 0.00 4.54 0.02 0.00 4.75 0.02 0.00 7.29 0.03 0.00 6.99 0.03 0.00 3.59 0.01 0.00 Tetrahydrofuran 72.11 369.50 1.09 0.04 156.50 0.46 0.02 8.16 0.02 0.00 15.40 0.05 0.00 367.80 1.08 0.04 12.57 0.04 0.00 6.01 0.02 0.00 0.64 0.00 0.00 4.99 0.01 0.00 1,1,1-Trichloroethane 133.40 Carbon Tetrachloride 153.82 0.78 0.00 0.00 2-Butanone 72.11 18.54 0.05 0.00 Heptane 100.2 324.20 1.33 0.05 Benzene 78.11 32.62 0.10 0.00 3.67 0.01 0.00 3.55 0.01 0.00 23.61 0.08 0.00 23.42 0.07 0.00 3.88 0.01 0.00 1.79 0.01 0.00 3.06 0.01 0.00 6.57 0.02 0.00 1,2-Dichloroethane 98.96 20.74 0.08 0.00 4.30 0.02 0.00 5.38 0.02 0.00 34.92 0.14 0.00 1.61 0.01 0.00 Trichloroethylene 131.39 6.11 0.03 0.00 10.72 0.06 0.00 5.03 0.03 0.00 1,2-Dichloropropane 112.99 Bromodichloromethane 163.83 1,4-Dioxane 88.11 12.46 0.04 0.00 36.31 0.13 0.00 2.23 0.01 0.00 13.00 0.05 0.00 11.64 0.04 0.00 Cis-1,3-Dichloropropene 110.97 Toluene 92.14 4.01 0.02 0.00 6.37 0.02 0.00 16.92 0.06 0.00 25.47 0.10 0.00 20.13 0.08 0.00 2.13 0.01 0.00 5.45 0.02 0.00 11.13 0.04 0.00 4-Methyl-2-pentanone (MIBK) 100.16 5.30 0.02 0.00 30.44 0.12 0.00 28.96 0.12 0.00 113.61 0.47 0.02 339.64 1.39 0.07 23.7 0.10 0.00 t-1,2-dichloropropene 110.97 Tetrachloroethylene 165.83 1,1,2-Trichloroethane 133.40 Dibromochloromethane 208.28 1,2-Dibromoethane 187.86 2-Hexanone 100.16 Ethylbenzene 106.17 1.66 0.01 0.00 3.32 0.01 0.00 3.52 0.02 0.00 2.17 0.01 0.00 1.94 0.01 0.00 1.74 0.01 0.00 Chlorobenzene 112.56 3.42 0.02 0.00 2.68 0.01 0.00 m/p-Xylene 106.17 2.13 0.01 0.00 3.96 0.02 0.00 4.49 0.02 0.00 5.50 0.02 0.00 3.16 0.01 0.00 3.11 0.01 0.00 5.95 0.03 0.00 3.52 0.02 0.00 2.26 0.01 0.00 o-Xylene 106.17 0.94 0.00 0.00 1.14 0.00 0.00 1.46 0.01 0.00 1.07 0.00 0.00 0.96 0.00 0.00 1.89 0.01 0.00 0.97 0.00 0.00 0.76 0.00 0.00 Styrene 104.15 1.52 0.01 0.00 0.61 0.00 0.00 0.87 0.00 0.00 1.65 0.01 0.00 0.62 0.00 0.00 3.54 0.02 0.00 1.46 0.01 0.00 Tribromomethane 252.73 1.00 0.01 0.00 7.48 0.08 0.00 2.74 0.03 0.00 3.75 0.04 0.00 4.14 0.04 0.00 8.21 0.08 0.00 5.06 0.05 0.00 1,1,2,2-Tetrachloroethane 167.85 1.25 0.01 0.00 2.24 0.02 0.00 1.34 0.01 0.00 1-Ethyl-4-Methylbenzene 120.19 0.27 0.00 0.00 0.70 0.00 0.00 1.13 0.01 0.00 0.84 0.00 0.00 1.64 0.01 0.00 1,3,5-Trimethylbenzene 120.19 0.84 0.00 0.00 1.48 0.01 0.00 2.52 0.01 0.00 1.65 0.01 0.00 0.83 0.00 0.00 1,2,4-Trimethylbenzene 120.19 0.93 0.00 0.00 1.69 0.01 0.00 3.04 0.01 0.00 1,3-Dichlorobenzene 147.01 2.29 0.01 0.00 1.60 0.01 0.00 0.59 0.00 0.00 1,4-Dichlorobenzene 147.01 2.41 0.01 0.00 Benzyl Chloride 126.59 1,2-Dichlorobenzene 147.01 1,1,2,3,4,4-hexachloro-1,2-butadiene 260.76 1,2,4-Trichlorobenzene 181.45

total lbs/day 0.15 0.08 0.03 0.08 0.13 0.01 0.04 0.09 0.04



https://ppbv/1000)*(MW)/24.45


Sample ID.: Air Stripper Air Stripper Air Stripper Air Stripper Air Stripper Air Stripper Air Stripper Air Stripper Discharge Discharge Discharge Discharge Discharge Discharge Discharge Discharge


Air Stripper Discharge Pipe (6 inch diameter) Vapor Flow Rate (cfm) 250 470 450 500 500 400 320 320 Vapor Temperature (degrees celcius) 20 20 20 20 20 20 20 20 Vapor Flow Rate (m3/day) 10800 20304 19440 21600 21600 17280 13824 13824 Discharge Velocity (ft/sec) 5.31 9.97 9.55 10.61 10.61 8.49 6.79 6.79

Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Volatile Organics (ppbv) Molecular Weight Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate (USEPA Method TO-15 GC/MS) (g/mol) ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day

Dichlorodifluoromethane (Freon 12) 120.91 7.7 0.04 0.00 1,2-Chloro-1,1,2,2-Tetrafluorethane 170.92 Chloromethane 50.49 35.28 0.07 0.00 Vinyl chloride 62.50 5.54 0.01 0.00 1,3-Butadiene 54.09 Bromomethane 94.94 1.41 0.01 0.00 6.13 0.02 0.00 3.86 0.01 0.00 18.23 0.07 0.00 4.93 0.02 0.00 28.55 0.11 0.00 Cloroethane 64.51 Trichloromonofluoromethane 137.37 3.95 0.02 0.00 1.13 0.01 0.00 1,1-Dichloroethene 96.94 1,1,2-Trichloro-1,2,2-trifluoroethane 187.38 Ethanol 46.07 2.24 0.00 0.00 Carbon Disulfide 76.14 3.60 0.01 0.00 Isopropyl alcohol 60.10 14.72 0.04 0.00 8.06 0.02 0.00 Methylene Chloride 84.93 512.17 1.78 0.08 110.97 0.39 0.02 15.42 0.05 0.00 Acetone 58.08 76.81 0.18 0.00 109.21 0.26 0.01 123.99 0.29 0.01 219.92 0.52 0.02 28.81 0.07 0.00 90.88 0.22 0.01 55.07 0.13 0.00 14.81 0.04 0.00 t-1,2-dichloroethene 96.94 1.11 0.00 0.00 0.76 0.00 0.00 0.98 0.00 0.00 Hexane 86.18 30.68 0.11 0.00 8.09 0.03 0.00 0.74 0.00 0.00 Methyl-t-butyl ether (MTBE) 88.15 0.58 0.00 0.00 0.97 0.00 0.00 3.38 0.01 0.00 1,1-Dichloroethane 98.96 Vinyl acetate 86.09 1.34 0.00 0.00 1.12 0.00 0.00 1.53 0.01 0.00 0.78 0.00 0.00 0.75 0.00 0.00 cis-1,2-dichloroethene 96.94 Cyclohexane 84.18 3.16 0.01 0.00 13.05 0.04 0.00 15.35 0.05 0.00 1.68 0.01 0.00 7.83 0.03 0.00 Chloroform 119.38 4.26 0.02 0.00 136.3 0.67 0.03 26.57 0.13 0.01 10.58 0.05 0.00 3.90 0.02 0.00 8.00 0.04 0.00 1.44 0.01 0.00 4.83 0.02 0.00 Ethyl Acetate 88.10 4.93 0.02 0.00 2.52 0.01 0.00 4.21 0.02 0.00 3.37 0.01 0.00 Tetrahydrofuran 72.11 8.11 0.02 0.00 162.83 0.48 0.02 32.94 0.10 0.00 2.22 0.01 0.00 2.24 0.01 0.00 7.51 0.02 0.00 6.14 0.02 0.00 4.28 0.01 0.00 1,1,1-Trichloroethane 133.40 Carbon Tetrachloride 153.82 0.79 0.00 0.00 2-Butanone 72.11 Heptane 100.2 0.59 0.00 0.00 2.02 0.01 0.00 8.95 0.04 0.00 126.57 0.52 0.02 49.92 0.20 0.01 Benzene 78.11 6.51 0.02 0.00 65.27 0.21 0.01 10.49 0.03 0.00 5.51 0.02 0.00 8.08 0.03 0.00 6.70 0.02 0.00 1.85 0.01 0.00 3.43 0.01 0.00 1,2-Dichloroethane 98.96 74.64 0.30 0.01 24.18 0.10 0.00 Trichloroethylene 131.39 7.05 0.04 0.00 20.58 0.11 0.00 18.9 0.10 0.00 12.28 0.07 0.00 9.91 0.05 0.00 1,2-Dichloropropane 112.99 Bromodichloromethane 163.83 1,4-Dioxane 88.11 13.32 0.05 0.00 8.42 0.03 0.00 9.71 0.03 0.00 20.62 0.07 0.00 1.83 0.01 0.00 4.5 0.02 0.00 Cis-1,3-Dichloropropene 110.97 Toluene 92.14 6.1 0.02 0.00 5.64 0.02 0.00 4.9 0.02 0.00 3.65 0.01 0.00 3.56 0.01 0.00 9.06 0.03 0.00 1.53 0.01 0.00 6.35 0.02 0.00 4-Methyl-2-pentanone (MIBK) 100.16 25.93 0.11 0.00 27.27 0.11 0.01 30.21 0.12 0.01 15.46 0.06 0.00 58.84 0.24 0.01 12.26 0.05 0.00 t-1,2-dichloropropene 110.97 Tetrachloroethylene 165.83 1,1,2-Trichloroethane 133.40 Dibromochloromethane 208.28 1,2-Dibromoethane 187.86 2-Hexanone 100.16 Ethylbenzene 106.17 1.89 0.01 0.00 1.9 0.01 0.00 1.88 0.01 0.00 1.91 0.01 0.00 1.60 0.01 0.00 2.41 0.01 0.00 1.5 0.01 0.00 3.17 0.01 0.00 Chlorobenzene 112.56 12.23 0.06 0.00 5.58 0.03 0.00 4.69 0.02 0.00 6.85 0.03 0.00 3.38 0.02 0.00 4.33 0.02 0.00 m/p-Xylene 106.17 2.77 0.01 0.00 2.73 0.01 0.00 3.73 0.02 0.00 2.51 0.01 0.00 2.20 0.01 0.00 5.08 0.02 0.00 1.73 0.01 0.00 7.38 0.03 0.00 o-Xylene 106.17 0.72 0.00 0.00 0.72 0.00 0.00 1.06 0.00 0.00 1.74 0.01 0.00 Styrene 104.15 3.6 0.02 0.00 2.21 0.01 0.00 0.53 0.00 0.00 3.25 0.01 0.00 Tribromomethane 252.73 5.78 0.06 0.00 13.19 0.14 0.01 8.65 0.09 0.00 19.76 0.20 0.01 13.58 0.14 0.01 1,1,2,2-Tetrachloroethane 167.85 1-Ethyl-4-Methylbenzene 120.19 1,3,5-Trimethylbenzene 120.19 1.18 0.01 0.00 1,2,4-Trimethylbenzene 120.19 1.12 0.01 0.00 1,3-Dichlorobenzene 147.01 1,4-Dichlorobenzene 147.01 Benzyl Chloride 126.59 1,2-Dichlorobenzene 147.01 1,1,2,3,4,4-hexachloro-1,2-butadiene 260.76 1,2,4-Trichlorobenzene 181.45 1.71 0.01 0.00

total lbs/day 0.01 0.19 0.07 0.05 0.03 0.04 0.01 0.03



https://ppbv/1000)*(MW)/24.45

Table 4. Summary of VER Discharge Sample Results, UNC Airport Road Waste Disposal Area, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina. Page 1 of 3

Sample ID.: VER Discharge VER Discharge VER Discharge VER Discharge VER Discharge VER Discharge VER Discharge VER Discharge


VER Discharge Pipe Dia. (4 inch diameter) Vapor Flow Rate (cfm) 70 70 90 80 80.00 70 70 70 Vapor Temperature (degrees farenheit) 148 148 146 144 145.00 162 162 162 Vapor flow Rate (m3/day) 3,024 3,024 3,888 3,456 3,456 3,024 3,024 3,024 Discharge Velocity (ft/sec) 3.3 3.3 4.3 3.8 3.82 3.3 3.3 3.3

Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Volatile Organics (ppbv)* Molecular Weight Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate (USEPA Method TO-15 GC/MS) (g/mol) ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day

Dichlorodifluoromethane (Freon 12) 120.91 51.24 0.3 0.0 1,2-Chloro-1,1,2,2-Tetrafluorethane 170.92 48.35 0.3 0.0 Chloromethane 50.49 Vinyl chloride 62.50 1,3-Butadiene 54.09 Bromomethane 94.94 28.24 0.1 0.0 11.28 0.0 0.0 Cloroethane 64.51 Trichloromonofluoromethane 137.37 2,014.73 11.3 0.1 3,310.69 18.6 0.1 625.44 3.5 0.0 750.13 4.2 0.0 307.59 1.7 0.0 1,186.29 6.7 0.0 1,639.32 9.2 0.1 940.09 5.3 0.0 1,1-Dichloroethene 96.94 148.21 0.6 0.0 25.62 0.1 0.0 36.04 0.1 0.0 1,1,2-trichloro-1,2,2-trifluoroethane 187.38 78.81 0.6 0.0 Ethanol 46.07 Carbon Disulfide 76.14 269.54 0.8 0.0 Isopropyl alcohol 60.10 2,226.81 5.5 0.0 5,411.62 13.3 0.1 5,203.49 12.8 0.1 Methylene Chloride 84.93 110,808.20 384.9 2.6 322,444.00 1120.0 7.5 41,896.92 145.5 1.2 37,561.13 130.5 1.0 92,956.34 322.9 2.5 102,640.90 356.5 2.4 258,626.80 898.4 6.0 211,456.40 734.5 4.9 Acetone 58.08 28,745.96 68.3 0.5 14,091.05 33.5 0.2 5,235.86 12.4 0.1 5,558.48 13.2 0.1 10,282.80 24.4 0.2 7,730.38 18.4 0.1 13,546.58 32.2 0.2 12,469.65 29.6 0.2 t-1,2-dichloroethene 96.94 117.89 0.5 0.0 17.25 0.1 0.0 27.75 0.1 0.0 17.90 0.1 0.0 75.53 0.3 0.0 Hexane 86.18 535.81 1.9 0.0 1,683.52 5.9 0.0 848.76 3.0 0.0 5,711.71 20.1 0.2 1,044.22 3.7 0.0 1,482.35 5.2 0.0 13,178.74 46.5 0.3 2,876.33 10.1 0.1 MTBE 88.15 194.86 0.7 0.0 38.03 0.1 0.0 139.35 0.5 0.0 1,1-Dichloroethane 98.96 94.69 0.4 0.0 Vinyl acetate 86.09 58.01 0.2 0.0 35.36 0.1 0.0 95.11 0.3 0.0 48.98 0.2 0.0 303.06 1.1 0.0 108.37 0.4 0.0 cis-1,2-dichloroethene 96.94 88.27 0.3 0.0 20.72 0.1 0.0 Cyclohexane 84.18 965.34 3.3 0.0 Chloroform 119.38 55,260.17 269.8 1.8 117,007.40 571.3 3.8 44,109.44 215.4 1.8 55,026.13 268.7 2.0 35,561.23 173.6 1.3 43,846.02 214.1 1.4 99,890.10 487.7 3.3 71,732.84 350.2 2.3 Ethyl Acetate 88.10 191.91 0.7 0.0 418.40 1.5 0.0 166.65 0.6 0.0 33.82 0.1 0.0 178.97 0.6 0.0 86.82 0.3 0.0 316.63 1.1 0.0 156.59 0.6 0.0 Tetrahydrofuran 72.11 5,051.33 14.9 0.1 11,325.57 33.4 0.2 4,414.91 13.0 0.1 4,910.49 14.5 0.1 5,069.83 15.0 0.1 4,440.78 13.1 0.1 8,460.90 25.0 0.2 6,504.76 19.2 0.1 1,1,1-Trichloroethane 133.40 Carbon Tetrachloride 153.82 18.64 0.1 0.0 65.60 0.4 0.0 69.63 0.4 0.0 56.36 0.4 0.0 2-Butanone 72.11 Heptane 100.2 89.71 0.4 0.0 435.93 1.8 0.0 292.76 1.2 0.0 2,239.29 9.2 0.1 463.23 1.9 0.0 452.46 1.9 0.0 16,516.05 67.7 0.5 4,014.70 16.5 0.1 Benzene 78.11 24,986.34 79.8 0.5 62,496.05 199.7 1.3 20,195.29 64.5 0.6 27,333.68 87.3 0.7 20,995.18 67.1 0.5 18,762.18 59.9 0.4 53,647.78 171.4 1.1 29,388.81 93.9 0.6 1,2-Dichloroethane 98.96 1598.12 6.5 0.0 3,700.12 15.0 0.1 1,285.25 5.2 0.0 1,504.23 6.1 0.0 1,077.90 4.4 0.0 1,518.24 6.1 0.0 3,406.64 13.8 0.1 2,765.92 11.2 0.1 Trichloroethylene 131.39 1,053.68 5.7 0.0 2,997.67 16.1 0.1 1,133.49 6.1 0.1 2,793.73 15.0 0.1 1,468.41 7.9 0.1 1,239.19 6.7 0.0 2,727.57 14.7 0.1 1,116.75 6.0 0.0 1,2-Dichloropropane 112.99 Bromodichloromethane 163.83 49.40 0.3 0.0 1,4-Dioxane 88.11 224.70 0.8 0.0 408.95 1.5 0.0 217.29 0.8 0.0 307.47 1.1 0.0 269.25 1.0 0.0 361.86 1.3 0.0 263.52 0.9 0.0 235.42 0.8 0.0 Cis-1,3-Dichloropropene 110.97 Toluene 92.14 360.77 1.4 0.0 171.94 0.6 0.0 240.69 0.9 0.0 279.44 1.1 0.0 273.44 1.0 0.0 670.14 2.5 0.0 393.92 1.5 0.0 4-Methyl-2-pentanone (MIBK) 100.16 13.60 0.1 0.0 143.36 0.6 0.0 28.48 0.1 0.0 17.51 0.1 0.0 36.35 0.1 0.0 15.17 0.1 0.0 32.32 0.1 0.0 36.76 0.2 0.0 t-1,2-dichloropropene 110.97 Tetrachloroethylene 165.83 117.89 0.8 0.0 28.41 0.2 0.0 23.97 0.2 0.0 50.60 0.3 0.0 29.90 0.2 0.0 1,1,2-Trichloroethane 133.40 Dibromochloromethane 208.28 43.92 0.4 0.0 1,2-Dibromoethane 187.86 46.29 0.4 0.0 2-Hexanone 100.16 Ethylbenzene 106.17 610.63 2.7 0.0 Chlorobenzene 112.56 104.70 0.5 0.0 256.15 1.2 0.0 71.30 0.3 0.0 92.47 0.4 0.0 96.07 0.4 0.0 119.79 0.6 0.0 251.79 1.2 0.0 188.61 0.9 0.0 m/p-Xylene 106.17 187.32 0.8 0.0 540.34 2.3 0.0 221.37 1.0 0.0 402.20 1.7 0.0 351.41 1.5 0.0 385.57 1.7 0.0 764.26 3.3 0.0 365.91 1.6 0.0 o-Xylene 106.17 97.94 0.4 0.0 220.31 1.0 0.0 75.94 0.3 0.0 106.65 0.5 0.0 98.96 0.4 0.0 126.30 0.5 0.0 232.08 1.0 0.0 133.53 0.6 0.0 Styrene 104.15 45.27 0.2 0.0 5.87 0.0 0.0 5.77 0.0 0.0 6.08 0.0 0.0 3.97 0.0 0.0 Tribromomethane 252.73 46.61 0.5 0.0 6.81 0.1 0.0 4.00 0.0 0.0 1,1,2,2-Tetrachloroethane 167.85 37.54 0.3 0.0 151.93 1.0 0.0 41.75 0.3 0.0 38.34 0.3 0.0 52.41 0.4 0.0 45.89 0.3 0.0 94.29 0.6 0.0 80.32 0.6 0.0 1-Ethyl-4-Methylbenzene 120.19 14.70 0.1 0.0 1,3,5-Trimethylbenzene 120.19 26.01 0.1 0.0 77.99 0.4 0.0 16.93 0.1 0.0 15.29 0.1 0.0 24.74 0.1 0.0 16.63 0.1 0.0 19.32 0.1 0.0 1,2,4-Trimethylbenzene 120.19 35.20 0.2 0.0 95.44 0.5 0.0 25.47 0.1 0.0 31.38 0.2 0.0 20.63 0.1 0.0 26.58 0.1 0.0 1,3-Dichlorobenzene 147.01 54.75 0.3 0.0 1,4-Dichlorobenzene 147.01 57.73 0.3 0.0 Benzyl Chloride 126.59 1,2-Dichlorobenzene 147.01 60.90 0.4 0.0 1,1,2,3,4,4-hexachloro-1,2-butadiene 260.76 80.91 0.9 0.0 1,2,4-Trichlorobenzene 181.45 40.44 0.3 0.0

Total lbs/day 6 14 4 4 5 5 12 9

Calculated values *Conversion from ppvb to mg/m3: mg/m3 = (ppbv/1000)*(MW)/24.45 Average VER dicharge mg/m3 milligrams per cubic meter lbs/day pounds per day cfm cubic feet per minute m3/day cubic meters per day ft/sec feet per second ppbv parts per billion by volume


3.78 lbs/day average based on 2006-2009 data

https://ppbv/1000)*(MW)/24.45


Sample ID.: VER Discharge VER Discharge VER Discharge VER Discharge VER Discharge VER Discharge VER Discharge VER Discharge VER Discharge

Constituents Date Sampled: 2/16/2007 3/2/2007 4/2/2007 4/30/2007 6/8/2007 8/9/2007 9/13/2007 10/3/2007 11/15/2007

VER Discharge Pipe Dia. (4 inch diameter) Vapor Flow Rate (cfm) 70 70 70 70 90 125 70 130 100 Vapor Temperature (degrees farenheit) 162 162 162 162 150 150 162 150 146 Vapor flow Rate (m3/day) 3,024 3,024 3,024 3,024 3,888 5,400 3,024 5,616 4,320 Discharge Velocity (ft/sec) 3.3 3.3 3.3 3.3 4.3 6.0 3.3 6.2 4.8

Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Converted Daily Mass Air Volatile Organics (ppbv)* Molecular Weight Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration Concentration Flow Rate Concentration (USEPA Method TO-15 GC/MS) (g/mol) ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv mg/m3 lbs/day ppbv

Dichlorodifluoromethane (Freon 12) 120.91 6.89 0.0 0.0 1.47 0.0 0.0 1,2-Chloro-1,1,2,2-Tetrafluorethane 170.92 3.29 0.0 0.0 Chloromethane 50.49 Vinyl chloride 62.50 1,3-Butadiene 54.09 Bromomethane 94.94 26.61 0.1 0.0 2.86 0.0 0.0 16.26 0.1 0.0 44.08 Cloroethane 64.51 Trichloromonofluoromethane 137.37 754.74 4.2 0.0 544.74 3.1 0.0 277.09 1.6 0.0 260.15 1.5 0.0 301.81 1.7 0.0 81.12 0.5 0.0 5.02 0.0 0.0 173.05 1,1-Dichloroethene 96.94 1,1,2-trichloro-1,2,2-trifluoroethane 187.38 Ethanol 46.07 65.58 0.1 0.0 209.67 Carbon Disulfide 76.14 Isopropyl alcohol 60.10 136.60 0.3 0.0 107.42 0.3 0.0 46.51 0.1 0.0 39.34 Methylene Chloride 84.93 145,001.70 503.7 3.4 74,410.91 258.5 1.7 29,666.07 103.0 0.7 32,983.59 114.6 0.8 25,072.29 87.1 0.7 8,688.38 30.2 0.4 127,971.60 Acetone 58.08 10,018.84 23.8 0.2 5,836.91 13.9 0.1 5,751.67 13.7 0.1 8,002.55 19.0 0.1 9,485.78 22.5 0.2 813.23 1.9 0.0 1,475.10 3.5 0.0 9,687.64 23.0 0.3 21,126.28 t-1,2-dichloroethene 96.94 3.03 0.0 0.0 4.82 0.0 0.0 13.42 0.1 0.0 49.17 Hexane 86.18 1,303.18 4.6 0.0 2,038.94 7.2 0.0 749.61 2.6 0.0 456.55 1.6 0.0 217.84 0.8 0.0 46.53 0.2 0.0 1,530.28 5.4 0.0 31.15 0.1 0.0 5,981.54 MTBE 88.15 70.16 0.3 0.0 25.68 0.1 0.0 26.27 0.1 0.0 85.33 1,1-Dichloroethane 98.96 Vinyl acetate 86.09 46.12 0.2 0.0 14.11 0.0 0.0 19.51 0.1 0.0 14.65 0.1 0.0 17.86 0.1 0.0 cis-1,2-dichloroethene 96.94 Cyclohexane 84.18 830.86 2.9 0.0 1,488.76 5.1 0.0 73.04 0.3 0.0 128.10 0.4 0.0 146.39 0.5 0.0 38.60 0.1 0.0 8.93 0.0 0.0 296.56 1.0 0.0 361.15 Chloroform 119.38 46,632.79 227.7 1.5 35,426.21 173.0 1.2 16,835.53 82.2 0.5 16,667.96 81.4 0.5 13,228.42 64.6 0.6 4,219.30 20.6 0.2 199.93 1.0 0.0 3,937.09 19.2 0.2 7,873.85 Ethyl Acetate 88.10 119.31 0.4 0.0 543.01 2.0 0.0 37.80 0.1 0.0 46.83 0.2 0.0 49.37 0.2 0.0 30.42 0.1 0.0 52.02 0.2 0.0 83.96 0.3 0.0 195.14 Tetrahydrofuran 72.11 5,399.04 15.9 0.1 4,482.47 13.2 0.1 3,964.35 11.7 0.1 4,884.12 14.4 0.1 3,390.80 10.0 0.1 1,452.56 4.3 0.1 63.85 0.2 0.0 897.25 2.6 0.0 1,171.41 1,1,1-Trichloroethane 133.40 Carbon Tetrachloride 153.82 7.85 0.0 0.0 5.66 0.0 0.0 3.19 0.0 0.0 8.52 0.1 0.0 2-Butanone 72.11 Heptane 100.2 1,463.24 6.0 0.0 5,026.07 20.6 0.1 33.13 0.1 0.0 31.48 0.1 0.0 12.79 0.1 0.0 36.24 Benzene 78.11 16,422.23 52.5 0.3 16,090.90 51.4 0.3 7,594.05 24.3 0.2 8,169.80 26.1 0.2 5,027.73 16.1 0.1 1,328.50 4.2 0.1 67.15 0.2 0.0 1,013.30 3.2 0.0 1,256.72 1,2-Dichloroethane 98.96 2,186.04 8.8 0.1 1,749.70 7.1 0.0 911.33 3.7 0.0 1,076.38 4.4 0.0 584.44 2.4 0.0 187.44 0.8 0.0 8.45 0.0 0.0 146.90 0.6 0.0 337.50 Trichloroethylene 131.39 645.02 3.5 0.0 639.15 3.4 0.0 268.46 1.4 0.0 264.35 1.4 0.0 307.71 1.7 0.0 109.98 0.6 0.0 11.64 0.1 0.0 188.42 1.0 0.0 364.79 1,2-Dichloropropane 112.99 Bromodichloromethane 163.83 1,4-Dioxane 88.11 161.30 0.6 0.0 140.41 0.5 0.0 134.03 0.5 0.0 251.01 0.9 0.0 200.41 0.7 0.0 153.29 0.6 0.0 8.43 0.0 0.0 126.76 0.5 0.0 81.64 Cis-1,3-Dichloropropene 110.97 Toluene 92.14 306.47 1.2 0.0 850.56 3.2 0.0 150.11 0.6 0.0 225.89 0.9 0.0 146.33 0.6 0.0 39.21 0.1 0.0 8.58 0.0 0.0 216.28 0.8 0.0 98.12 4-Methyl-2-pentanone (MIBK) 100.16 37.24 0.2 0.0 60.04 0.2 0.0 162.61 0.7 0.0 277.49 1.1 0.0 257.18 1.1 0.0 3.63 0.0 0.0 31.35 0.1 0.0 36.47 t-1,2-dichloropropene 110.97 Tetrachloroethylene 165.83 1,1,2-Trichloroethane 133.40 Dibromochloromethane 208.28 1,2-Dibromoethane 187.86 2.68 0.0 0.0 2-Hexanone 100.16 Ethylbenzene 106.17 134.42 0.6 0.0 222.38 1.0 0.0 52.00 0.2 0.0 8.91 0.0 0.0 2.90 0.0 0.0 47.67 0.2 0.0 43.84 Chlorobenzene 112.56 114.80 0.5 0.0 87.98 0.4 0.0 27.45 0.1 0.0 6.45 0.0 0.0 3.34 0.0 0.0 48.14 m/p-Xylene 106.17 206.62 0.9 0.0 629.81 2.7 0.0 71.26 0.3 0.0 143.34 0.6 0.0 111.02 0.5 0.0 11.52 0.1 0.0 6.33 0.0 0.0 145.58 0.6 0.0 69.67 o-Xylene 106.17 79.70 0.3 0.0 183.73 0.8 0.0 32.46 0.1 0.0 69.94 0.3 0.0 50.68 0.2 0.0 7.86 0.0 0.0 2.30 0.0 0.0 44.63 0.2 0.0 29.47 Styrene 104.15 8.35 0.0 0.0 57.36 0.2 0.0 13.09 0.1 0.0 3.10 0.0 0.0 6.82 Tribromomethane 252.73 6.93 0.1 0.0 8.95 0.1 0.0 4.70 0.0 0.0 1,1,2,2-Tetrachloroethane 167.85 54.15 0.4 0.0 58.17 0.4 0.0 26.27 0.2 0.0 48.49 0.3 0.0 34.04 0.2 0.0 12.25 0.1 0.0 32.33 1-Ethyl-4-Methylbenzene 120.19 1,3,5-Trimethylbenzene 120.19 116.02 0.6 0.0 35.73 0.2 0.0 32.79 0.2 0.0 1.55 0.0 0.0 2.47 0.0 0.0 37.92 0.2 0.0 22.00 1,2,4-Trimethylbenzene 120.19 110.47 0.5 0.0 15.84 0.1 0.0 41.79 0.2 0.0 43.25 0.2 0.0 1.79 0.0 0.0 3.37 0.0 0.0 44.20 0.2 0.0 24.67 1,3-Dichlorobenzene 147.01 1,4-Dichlorobenzene 147.01 Benzyl Chloride 126.59 1,2-Dichlorobenzene 147.01 1,1,2,3,4,4-hexachloro-1,2-butadiene 260.76 1,2,4-Trichlorobenzene 181.45

Total lbs/day 6 4 2 2 2 1 0 0.67



https://ppbv/1000)*(MW)/24.45


Sample ID.: VER Discharge VER Discharge VER Discharge VER Discharge VER Discharge VER Discharge

Constituents Date Sampled: 12/26/2007 1/16/2008 2/11/2008 3/5/2008 9/5/2008 4/6/2009

VER Discharge Pipe Dia. (4 inch diameter) Vapor Flow Rate (cfm) 90 90 90 65 90 65 Vapor Temperature (degrees farenheit) 145 146 146 150 152 152 Vapor flow Rate (m3/day) 3,888 3,888 3,888 2,808 3,888 2,808 Discharge Velocity (ft/sec) 4.3 4.3 4.3 3.1 4.3 3.1

Converted Daily Mass Converted Daily Mass Converted Daily Mass Converted Daily Mass Converted Daily Mass Converted Daily Mass Converted Daily Mass Volatile Organics (ppbv)* Molecular Weight Concentration Flow Rate Concentration Flow Rate Concentration Flow Rate Concentration Flow Rate Concentration Flow Rate Concentration Flow Rate Concentration Flow Rate (USEPA Method TO-15 GC/MS) (g/mol) mg/m3 lbs/day mg/m3 lbs/day mg/m3 lbs/day mg/m3 lbs/day mg/m3 lbs/day mg/m3 lbs/day mg/m3 lbs/day

Dichlorodifluoromethane (Freon 12) 120.91 6.69 0.0 0.0 1,2-Chloro-1,1,2,2-Tetrafluorethane 170.92 Chloromethane 50.49 Vinyl chloride 62.50 1,3-Butadiene 54.09 16.53 0.0 0.0 Bromomethane 94.94 0.2 0.0 11.05 0.0 0.0 207.11 0.8 0.0 Cloroethane 64.51 Trichloromonofluoromethane 137.37 1.0 0.0 135.97 0.8 0.0 163.64 0.9 0.0 92.47 0.5 0.0 805.20 4.5 0.0 56.74 0.3 0.0 1,1-Dichloroethene 96.94 293.00 1.2 0.0 0.41 0.0 0.0 1,1,2-trichloro-1,2,2-trifluoroethane 187.38 Ethanol 46.07 0.4 0.0 Carbon Disulfide 76.14 Isopropyl alcohol 60.10 0.1 0.0 556.30 1.4 0.0 368.42 0.9 0.0 27.37 0.1 0.0 Methylene Chloride 84.93 444.5 4.2 4,468.04 15.5 0.1 4,798.26 16.7 0.1 1,964.44 6.8 0.1 124.27 0.4 0.0 56,917.76 197.7 1.2 3,191.29 11.1 0.1 Acetone 58.08 50.2 0.5 529.33 1.3 0.0 680.63 1.6 0.0 279.43 0.7 0.0 117.56 0.3 0.0 12,464.22 29.6 0.2 19.76 0.0 0.0 t-1,2-dichloroethene 96.94 0.2 0.0 Hexane 86.18 21.1 0.2 106.82 0.4 0.0 103.20 0.4 0.0 66.07 0.2 0.0 1,398.72 4.9 0.0 27.32 0.1 0.0 MTBE 88.15 0.3 0.0 20.35 0.1 0.0 1,1-Dichloroethane 98.96 Vinyl acetate 86.09 8.84 0.0 0.0 24.06 0.1 0.0 19.30 0.1 0.0 2.89 0.0 0.0 45.17 0.2 0.0 1.02 0.0 0.0 cis-1,2-dichloroethene 96.94 Cyclohexane 84.18 1.2 0.0 213.33 0.7 0.0 159.94 0.6 0.0 187.62 0.6 0.0 107.50 0.4 0.0 1,107.80 3.8 0.0 34.28 0.1 0.0 Chloroform 119.38 38.4 0.4 6,303.25 30.8 0.3 6,767.81 33.0 0.3 4,430.33 21.6 0.2 723.56 3.5 0.0 74,648.23 364.5 2.3 4,727.79 23.1 0.1 Ethyl Acetate 88.10 0.7 0.0 44.41 0.2 0.0 21.73 0.1 0.0 83.66 0.3 0.0 4.33 0.0 0.0 91.27 0.3 0.0 Tetrahydrofuran 72.11 3.5 0.0 1,288.15 3.8 0.0 1,443.78 4.3 0.0 1,116.27 3.3 0.0 295.69 0.9 0.0 7,417.13 21.9 0.1 1,324.48 3.9 0.0 1,1,1-Trichloroethane 133.40 Carbon Tetrachloride 153.82 15.28 0.1 0.0 10.50 0.1 0.0 2-Butanone 72.11 Heptane 100.2 0.1 0.0 27.04 0.1 0.0 31.64 0.1 0.0 22.39 0.1 0.0 118.95 0.5 0.0 1,933.18 7.9 0.0 79.58 0.3 0.0 Benzene 78.11 4.0 0.0 839.76 2.7 0.0 1,129.96 3.6 0.0 643.64 2.1 0.0 414.00 1.3 0.0 73,269.52 234.1 1.4 1,960.98 6.3 0.0 1,2-Dichloroethane 98.96 1.4 0.0 240.92 1.0 0.0 309.18 1.3 0.0 204.79 0.8 0.0 55.24 0.2 0.0 3,038.24 12.3 0.1 269.10 1.1 0.0 Trichloroethylene 131.39 2.0 0.0 248.56 1.3 0.0 297.51 1.6 0.0 190.21 1.0 0.0 126.06 0.7 0.0 3,747.68 20.1 0.1 176.41 0.9 0.0 1,2-Dichloropropane 112.99 Bromodichloromethane 163.83 1,4-Dioxane 88.11 0.3 0.0 111.88 0.4 0.0 115.63 0.4 0.0 86.66 0.3 0.0 85.83 0.3 0.0 51.00 0.2 0.0 124.15 0.4 0.0 Cis-1,3-Dichloropropene 110.97 Toluene 92.14 0.4 0.0 48.09 0.2 0.0 6.91 0.0 0.0 14.18 0.1 0.0 414.27 1.6 0.0 4-Methyl-2-pentanone (MIBK) 100.16 0.1 0.0 45.65 0.2 0.0 13.18 0.1 0.0 264.56 1.1 0.0 368.30 1.5 0.0 t-1,2-dichloropropene 110.97 Tetrachloroethylene 165.83 1,1,2-Trichloroethane 133.40 Dibromochloromethane 208.28 1,2-Dibromoethane 187.86 2-Hexanone 100.16 Ethylbenzene 106.17 0.2 0.0 8.44 0.0 0.0 10.69 0.0 0.0 6.53 0.0 0.0 8.42 0.0 0.0 317.98 1.4 0.0 11.79 0.1 0.0 Chlorobenzene 112.56 0.2 0.0 14.76 0.1 0.0 330.00 1.5 0.0 19.35 0.1 0.0 m/p-Xylene 106.17 0.3 0.0 13.10 0.1 0.0 15.31 0.1 0.0 10.63 0.0 0.0 15.86 0.1 0.0 368.81 1.6 0.0 13.67 0.1 0.0 o-Xylene 106.17 0.1 0.0 7.67 0.0 0.0 9.29 0.0 0.0 5.90 0.0 0.0 8.17 0.0 0.0 122.64 0.5 0.0 5.61 0.0 0.0 Styrene 104.15 0.0 0.0 5.68 0.0 0.0 6.53 0.0 0.0 5.60 0.0 0.0 16.71 0.1 0.0 Tribromomethane 252.73 6.47 0.1 0.0 8.16 0.1 0.0 12.77 0.1 0.0 19.04 0.2 0.0 1,1,2,2-Tetrachloroethane 167.85 0.2 0.0 15.06 0.1 0.0 26.48 0.2 0.0 15.89 0.1 0.0 22.57 0.2 0.0 45.98 0.3 0.0 1-Ethyl-4-Methylbenzene 120.19 1.17 0.0 0.0 1,3,5-Trimethylbenzene 120.19 0.1 0.0 1,2,4-Trimethylbenzene 120.19 0.1 0.0 3.07 0.0 0.0 2.58 0.0 0.0 1,3-Dichlorobenzene 147.01 1,4-Dichlorobenzene 147.01 Benzyl Chloride 126.59 1,2-Dichlorobenzene 147.01 1,1,2,3,4,4-hexachloro-1,2-butadiene 260.76 1,2,4-Trichlorobenzene 181.45

Total lbs/day 5.44 0.52 0.56 0.35 0.06 5.64 0.30



https://ppbv/1000)*(MW)/24.45

Table 5. Summary of Monitor Well and Recovery Well Construction Details, UNC Airport Road Waste Disposal Area, Univesity of North Carolina at Chapel Hill, Chapel Hill, North Carolina.

Measuring Depth of Monitor Point Elevation Surface Total Drilled Screened

Well Date of (Top of Casing) Casing Depth Interval Identification Installation (ft msl) (ft bls) (ft bls) (ft bls)

MW-1 INA 483.11 NA 28.3 INA MW-2 INA 484.30 NA 29 INA MW-3 INA 483.34 NA 20 INA MW-4 INA 472.18 NA 24.6 INA MW-5 INA 454.62 NA 15 INA MW-6 4/11/1995 472.55 NA 22 12.0-22.0

* MW-7 4/21/1995 475.01 22 48 38.0-48.0 * MW-9 4/21/1995 476.25 NA 43.5 20.0-35.0 * MW-11 4/18/1995 472.78 NA 36 26.0-36.0

MW-12 4/13/1995 464.21 NA 22 12.0-22.0 * MW-13 4/19/1995 467.60 NA 23 13.0-23.0 * MW-14 8/11/1995 481.67 29 175 165.0-175.0 * MW-15 7/20/1995 465.04 40 60.5 50.0-60.0 * MW-16 7/21/1995 467.14 16 82 22.0-42.0 * MW-17 7/24/1995 478.99 26 71 60.0-70.0

MW-18 7/19/1995 467.96 NA 16 5.0-15.0 MW-19 7/19/1995 473.90 NA 10 5.0-10.0 MW-20 7/27/1995 475.03 NA 25 14.0-24.0

* MW-21 7/21/1995 463.28 NA 22 11.0-21.0 MW-22 7/26/1995 460.78 NA 10 5.0-10.0

* MW-23 8/17/1995 458.92 17 89 78.0-88.0 * MW-24 1/19/1996 465.32 105 200 175.0-195.0

MW-25 1/23/1996 458.74 NA 15 5.0-15.0 * MW-26 2/5/1996 458.79 20 180 75.0-95.0 * MW-28 1/15/1996 480.40 NA 46 36.0-46.0 * MW-29 11/14/1996 480.73 55 170 160.0-170.0 * MW-30 11/12/1996 468.57 NA 40 25.0-40.0 * MW-31 11/13/1996 468.45 50 90 75.0-90.0 * MW-32 11/12/1996 462.06 NA 43 28.0-43.0 * MW-33 11/13/1996 461.46 50 85 70.0-85.0 * MW-34 7/6/2004 464.65 NA 85 70.0-85.0 * MW-35 7/6/2004 452.45 NA 75 60.0-75.0 * MW-36 7/7/2004 466.90 NA 84 69.0-84.0 * MW-37 7/6/2004 460.29 100 125 115.0-125.0

SRW-1 4/4/2006 460.98 NA 25 10.0-25.0 SRW-2 4/13/2006 464.20 NA 35 20.0-35.0 SRW-3 4/4/2006 462.76 NA 35 20.0-35.0

* DRW-1 4/2/1998 466.11 20 80 Open Borehole * DRW-2 4/7/2006 461.90 20 80 Open Borehole * DRW-3 4/7/2006 459.20 20 150 Open Borehole

VER-1 4/4/2006 483.08 NA 25 5.0-25.0 VER-2 3/26/1998 482.20 NA 25 5.0-25.0 VER-3 4/4/2006 480.11 NA 25 5.0-25.0 VER-4 4/4/2006 478.83 NA 25 5.0-25.0

* Bedrock wells - This designation indicates that the entire screened interval or open borehole interval is in bedrock. ft msl Feet above mean sea level. NA Not Applicable. ft bls Feet below land surface. INA Information not available. Note: Monitor Wells MW-8, MW-10, and MW-27 were not installed.

G:\ENV\UNIVNC\Airport Road\NC000239.0018\2009 Remedial System Report\Tables\Table 5 Well Construction.xlsx

Table 6. Water Level Elevations in Monitor Wells and Recovery Wells, November 2, 2009, UNC Airport Road Waste Disposal Area, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.

Monitor Measuring Point Depth Groundwater Well Elevation to Water Elevation

Identification (ft msl) (ft toc) (ft msl)

MW-1 483.11 18.20 464.91 MW-2 484.30 20.35 463.95 MW-3 483.34 4.16 479.18 MW-4 472.18 18.27 453.91 MW-5 454.62 5.40 449.22 MW-6 472.55 18.02 454.53 *MW-7 475.01 23.34 451.67 *MW-9 476.25 15.25 461.00

*MW-11 472.78 34.88 437.90 MW-12 464.21 12.20 452.01

*MW-13 467.60 -- --*MW-14 481.67 28.62 453.05 *MW-15 465.04 22.90 442.14 *MW-16 467.14 7.12 460.02 *MW-17 478.99 18.47 460.52 MW-18 467.96 4.79 463.17 MW-19 473.90 4.63 469.27 MW-20 475.03 Dry --

*MW-21 463.28 16.00 447.28 MW-22 460.78 5.18 455.60

*MW-23 458.92 17.99 440.93 *MW-24 465.32 13.37 451.95 MW-25 458.74 10.10 448.64

*MW-26 458.79 28.04 430.75 *MW-28 480.4 6.30 474.10 *MW-29 480.73 15.01 465.72 *MW-30 468.57 32.50 436.07 *MW-31 468.45 34.58 433.87 *MW-32 462.06 24.97 437.09 *MW-33 461.46 27.98 433.48 *MW-34 464.65 26.21 438.44 *MW-35 452.45 65.76 386.69 *MW-36 466.90 20.86 446.04 *MW-37 460.29 24.07 436.22 VER-1 483.08 8.48 474.60 VER-2 482.20 17.64 464.56 VER-3 480.11 15.67 464.44 VER-4 478.83 6.80 472.03 SRW-1 460.98 13.55 447.43 SRW-2 464.20 25.70 438.50 SRW-3 462.76 23.65 439.11

*DRW-1 466.11 21.00 445.11 *DRW-2 461.90 44.30 417.60 *DRW-3 459.20 35.20 424.00

ft toc Feet below top of casing. ft msl Feet above mean sea level.

* Bedrock Wells - This designation indicates that the entire screened interval or open borehole interval is in bedrock. Dry Well dry at time of gauging NA Not available. NM Not measured.

G:\ENV\UNIVNC\Airport Road\NC000239.0018\2009 Remedial System Report\Tables\Table 6 GW Elevations.xls

Table 7. Historical Groundwater Elevation Data, UNC Airport Road Waste Disposal Area, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.

Date Measured: 7/19/04 1/10/07 4/16/07 7/11/07 10/1/07 10/20/08 11/2/09 Monitor

Well ID

TOC (ft msl)

Depth GW to WL Elevation (ft toc) (ft msl)







MW-1 483.11 12.40 470.71 20.17 462.94 19.08 464.03 19.57 463.54 21.20 461.91 18.79 464.32 18.20 464.91 MW-2 484.30 13.60 470.70 21.10 463.20 20.60 463.70 21.58 462.72 24.24 460.06 20.25 464.05 20.35 463.95 MW-3 483.34 5.30 478.04 3.37 479.97 3.79 479.55 8.22 475.12 12.42 470.92 6.01 477.33 4.16 479.18 MW-4 472.18 14.75 457.43 11.58 460.6 9.88 462.3 15.29 456.89 20.21 451.97 14.88 457.30 18.27 453.91 MW-5 454.62 4.75 449.87 1.84 452.78 1.71 452.91 14.83 439.79 Dry <439.62 6.50 448.12 5.40 449.22 MW-6 472.55 9.70 462.85 9.04 463.51 10.34 462.21 14.55 458.00 18.03 454.52 14.74 457.81 18.02 454.53 *MW-7 475.01 9.10 465.91 13.41 461.6 19.40 455.61 22.93 452.08 24.50 450.51 21.80 453.21 23.34 451.67 *MW-9 476.25 8.90 467.35 10.97 465.28 11.24 465.01 12.60 463.65 16.95 459.30 13.38 462.87 15.25 461.00

*MW-11 472.78 19.57 453.21 32.94 439.84 33.38 439.4 34.96 437.82 35.60 437.18 34.01 438.77 34.88 437.90 MW-12 464.21 6.77 457.44 9.74 454.47 14.45 449.76 18.62 445.59 24.43 439.78 12.65 451.56 12.20 452.01

*MW-13 467.60 6.98 460.62 9.18 458.42 9.08 458.52 22.95 444.65 Dry <444.60 19.10 448.50 8.20 459.40 *MW-14 481.67 16.17 465.5 23.60 458.07 27.06 454.61 29.02 452.65 30.38 451.29 27.18 454.49 28.62 453.05 *MW-15 465.04 1.77 463.27 10.95 454.09 20.33 444.71 23.37 441.67 23.41 441.63 21.13 443.91 22.90 442.14 *MW-16 467.14 6.42 460.72 4.72 462.42 4.93 462.21 7.09 460.05 8.69 458.45 6.40 460.74 7.12 460.02 *MW-17 478.99 10.97 468.02 15.52 463.47 17.54 461.45 19.28 459.71 20.88 458.11 17.06 461.93 18.47 460.52 MW-18 467.96 4.54 463.42 2.90 465.06 2.95 465.01 4.80 463.16 6.41 461.55 4.37 463.59 4.79 463.17 MW-19 473.90 NM NM NM NM NM NM 4.74 469.16 6.97 466.93 3.84 470.06 4.63 469.27 MW-20 475.03 18.58 456.45 16.36 458.67 10.44 464.59 18.85 456.18 Dry <450.03 20.30 454.73 Dry --

*MW-21 463.28 5.52 457.76 8.31 454.97 8.23 455.05 13.84 449.44 16.86 446.42 11.30 451.98 16.00 447.28 MW-22 460.78 4.44 456.34 3.47 457.31 3.23 457.55 7.60 453.18 10.32 450.46 5.06 455.72 5.18 455.60

*MW-23 458.92 3.09 455.83 13.32 445.60 13.33 445.59 12.61 446.31 24.34 434.58 13.39 445.53 17.99 440.93 *MW-24 465.32 2.20 463.12 9.62 455.70 12.29 453.03 13.65 451.67 14.85 450.47 10.62 454.70 13.37 451.95 MW-25 458.74 6.60 452.14 4.32 454.42 3.31 455.43 11.69 447.05 Dry <443.74 11.22 447.52 10.10 448.64

*MW-26 458.79 6.45 452.34 27.55 431.24 37.63 421.16 48.86 409.93 53.78 405.01 21.66 437.13 28.04 430.75 *MW-28 480.40 7.18 473.22 4.88 475.52 4.67 475.73 7.69 472.71 10.57 469.83 6.48 473.92 6.30 474.10 *MW-29 480.73 10.60 470.13 13.57 467.16 12.80 467.93 15.15 465.58 18.92 461.81 14.23 466.50 15.01 465.72 *MW-30 468.57 17.70 450.87 32.18 436.39 30.45 438.12 32.11 436.46 35.84 432.73 30.33 438.24 32.50 436.07 *MW-31 468.45 17.00 451.45 35.63 432.82 35.13 433.32 38.46 429.99 41.31 427.14 34.19 434.26 34.58 433.87 *MW-32 462.06 17.07 444.99 18.12 443.94 15.81 446.25 22.61 439.45 28.59 433.47 21.19 440.87 24.97 437.09 *MW-33 461.46 15.00 446.46 24.39 437.07 23.18 438.28 27.35 434.11 30.01 431.45 26.60 434.86 27.98 433.48 *MW-34 464.65 21.54 443.11 19.49 445.16 17.61 447.04 22.91 441.74 28.35 436.30 22.41 442.24 26.21 438.44 *MW-35 452.45 64.18 388.27 58.12 394.33 55.78 396.67 53.97 398.48 52.42 400.03 56.67 395.78 65.76 386.69 *MW-36 466.90 27.31 439.59 17.69 449.21 16.28 450.62 20.44 446.46 23.66 443.24 20.40 446.50 20.86 446.04 *MW-37 460.29 13.98 446.31 18.95 441.34 17.26 443.03 21.61 438.68 31.14 429.15 21.07 439.22 24.07 436.22 VER-1 483.08 -- -- NM -- NM -- NM -- NM -- NM -- 8.48 474.60 VER-2 482.20 -- -- NM -- NM -- NM -- NM -- NM -- 17.64 464.56 VER-3 480.11 -- -- NM -- NM -- NM -- NM -- NM -- 15.67 464.44 VER-4 478.83 -- -- NM -- NM -- NM -- NM -- NM -- 6.80 472.03 SRW-1 460.98 -- -- NM -- NM -- NM -- NM -- NM -- 13.55 447.43 SRW-2 464.20 -- -- NM -- NM -- NM -- NM -- NM -- 25.70 438.50 SRW-3 462.76 -- -- NM -- NM -- NM -- NM -- NM -- 23.65 439.11

*DRW-1 466.11 -- -- NM -- NM -- NM -- NM -- NM -- 21.00 445.11 *DRW-2 461.90 -- -- NM -- NM -- NM -- NM -- NM -- 44.30 417.60 *DRW-3 459.20 -- -- NM -- NM -- NM -- NM -- NM -- 35.20 424.00

TOC Top of Casing WL Water Level GW Groundwater NM Not measured. ft toc Feet below top of casing. ft msl Feet above mean sea level.

* Bedrock Wells - This designation indicates that the entire screened interval or open borehole interval is in bedrock. Dry Well dry at time of gauging

G:\ENV\UNIVNC\Airport Road\NC000239.0018\2009 Remedial System Report\Tables\Table 7 Historical GW Elevations.xlsx

Table 8. Groundwater Sampling Data for Samples Collected from Monitor Wells and Recovery Wells in November 2009, UNC Airport Road Waste Disposal Area, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.

Gallons Temperature pH Specific Date per Well Gallons (Degrees (Standard Conductance Sampling

Well No. Sampled Volume Purged Celsius) Units) (µmhos/cm) Method

MW-1 11/5/2009 1.9 2.6 to dry 18.00 6.09 1,833 bailer MW-2 11/4/2009 1.6 5.0 15.90 6.71 2,175 bailer MW-3 11/4/2009 2.6 7.0 to dry 18.94 6.30 645 bailer MW-4 11/3/2009 1.2 3.7 15.46 5.73 271 bailer MW-5 11/3/2009 1.7 5.0 16.91 5.95 112 bailer MW-6 11/4/2009 0.8 2.0 to dry 16.48 5.28 299 peristaltic MW-7 11/4/2009 4.1 6.0 to dry 16.16 6.01 833 grundfos MW-9 11/4/2009 4.8 10.0 15.60 6.17 353 bailer

MW-11 11/2/2009 0.7 2.1 14.90 6.95 468 bailer MW-12 11/3/2009 1.3 4.0 17.61 5.81 230 bailer MW-14 11/5/2009 24.0 60.0 16.19 7.02 473 grundfos MW-15 11/5/2009 6.4 19.0 15.44 6.22 853 grundfos MW-16 11/5/2009 5.9 15.0 to dry 17.72 6.67 708 grundfos MW-17 11/2/2009 8.4 25.0 15.98 6.42 1,496 grundfos MW-21 11/5/2009 1.3 4.0 15.84 6.94 190 grundfos MW-22 11/3/2009 0.8 3.0 18.17 6.03 1,417 bailer MW-23 11/2/2009 11.3 33.0 15.32 7.00 277 grundfos MW-24 11/3/2009 120.0 150.0 18.01 9.69 165 grundfos MW-25 11/2/2009 1.1 3.5 16.62 6.05 87 bailer MW-26 11/2/2009 11.4 11.0 to dry 15.75 7.50 370 grundfos MW-28 11/4/2009 6.4 19.0 19.90 6.75 370 grundfos MW-29 11/4/2009 25.0 75.0 17.38 6.53 523 grundfos MW-30 11/3/2009 1.5 3.0 to dry 15.01 6.57 424 bailer MW-31 11/3/2009 9.1 28.0 15.39 6.48 309 grundfos MW-32 11/4/2009 3.2 5.0 to dry 16.63 6.53 293 grundfos MW-33 11/4/2009 9.0 30.0 16.04 6.69 304 grundfos MW-35 11/4/2009 1.6 5.0 15.20 6.76 976 bailer MW-36 11/3/2009 10.0 15.0 to dry 17.07 6.29 452 grundfos

Notes: µmhos/cm micromhos per centimeter.

G:\ENV\UNIVNC\Airport Road\NC000239.0018\2009 Remedial System Report\Tables\Table 8 Field Parameters.xls

of 3

Table 9. Summary of Analytical Results for Groundwater Samples Collected in November 2009, UNC Airport Road Waste Disposal Area, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.

Dup-1 Sample ID: MW-1 MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 (MW-7) MW-9 MW-11 MW-12 MW-14 MW-15

Constituent Date Sampled: 11/5/2009 11/4/2009 11/4/2009 11/3/2009 11/3/2009 11/4/2009 11/4/2009 11/4/2009 11/4/2009 11/2/2009 11/3/2009 11/5/2009 11/5/2009

NCAC 2L GW

Volatile Organics Standard (USEPA Method 8260) µg/L

Acetone 6,000 Benzene 1 Bromobenzene 88* Chlorobenzene 50 Chloroform 70 Chloromethane 3 1,4-Dichlorobenzene 6 1,1-Dichloroethane 6 1,2-Dichloroethane 0.4 cis-1,2-Dichloroethene 70 trans-1,2-Dichloroethene 100 Diethyl ether 7,300* Ethylbenzene 600 Methyl tert-butyl ether 20 Methylene Chloride 5 1,1,2,2-Tetrachloroethane 0.2 Tetrachloroethane 0.7 Toluene 600 Trichloroethene 3 Trichlorofluoromethane 2,000 Vinyl chloride 0.03 Xylenes, Total 500

25,000 U 25,000 U 15,000

1,000 U 1,000 U

49,000 1,000 U 1,000 U 1,000 U 2,700 1,000 U 1,000 U

54,000 1,000 U

10,000 U 37,000

1,000 U 1,000 U 1,000 U 1,000 U 1,000 U 1,000 U 2,200

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 200 6.9

1 39

1 U 1 U 1 U

18 1.8 3.3

4,700 D 1 U

10 U 25

1 U 1 U 1 U

6.5 1.3

1 U 2 U

2,500 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U

4,300 100 U

1,000 U 500 U 100 U 100 U 100 U 100 U 100 U 100 U 200 U

2,500 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U

5,000 100 U

1,000 U 500 U 100 U 100 U 100 U 100 U 100 U 100 U 200 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

95 D 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U

1.5 1.9

1 U 1 U 1 U

8.3 1 U 1 U

290 D 1 U

10 U 5 U 1 U 1 U 1 U

1.9 1.3 1.4

2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

500 U 54 20 U 20 U 20 U 20 U 20 U 20 U 27 20 U 20 U

880 20 U

200 U 100 U

20 U 20 U 20 U 20 U 20 U 20 U 40 U

2,500 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 150 100 U 100 U

4,400 100 U

1,000 U 500 U 100 U 100 U 100 U 100 U 100 U 100 U 200 U

14,000 1,000 U 1,000 U

28,000 1,000 U 1,000 U 1,000 U 1,400 1,000 U 1,000 U

44,000 1,000 U

10,000 U 19,000

1,000 U 1,000 U 1,000 U 1,000 U 1,000 U 1,000 U 2,000 U

NCAC 2L North Carolina Administrative Code 2L Groundwater Standard ug/L Micrograms per liter. U Constituent was not detected above the reporting limit. D Constituent concentration was quantitated using a secondary dilution. * USEPA Risk-Based Concentration (RBC) for tap water (no NCAC 2L Groundwater Standard exists).

Indicates that the reported concentration exceeds the NCAC 2L Groundwater Standard or RBC.

G:\ENV\UNIVNC\Airport Road\NC000239.0018\2009 Remedial System Report\Tables\Table 9 GW analytical.xlsx

of 3


Sample ID: MW-16 MW-17 MW-21 MW-22 MW-23 MW-24 MW-25 MW-26 MW-28 MW-29 MW-30 MW-31 MW-32 Constituent Date Sampled: 11/5/2009 11/2/2009 11/5/2009 11/3/2009 11/2/2009 11/3/2009 11/2/2009 11/2/2009 11/4/2009 11/4/2009 11/3/2009 11/3/2009 11/4/2009

Volatile Organics (USEPA Method 8260) µg/L

NCAC 2L GW

Standard

Acetone 6,000 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U Benzene 1 1 U 1.3 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Bromobenzene 88* 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Chlorobenzene 50 1 U 1.7 1 U 4.6 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Chloroform 70 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Chloromethane 3 1 U 1 U 3 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1,4-Dichlorobenzene 6 1 U 3.3 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1,1-Dichloroethane 6 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1,2-Dichloroethane 0.4 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U cis-1,2-Dichloroethene 70 1 U 5.9 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U trans-1,2-Dichloroethene 100 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Diethyl ether 7,300* 10 U 37 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 14 10 U Ethylbenzene 600 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Methyl tert-butyl ether 20 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U Methylene Chloride 5 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 1,1,2,2-Tetrachloroethane 0.2 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Tetrachloroethane 0.7 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Toluene 600 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Trichloroethene 3 1 U 1.5 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Trichlorofluoromethane 2,000 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Vinyl chloride 0.03 1 U 4.6 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Xylenes, Total 500 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U




of 3


Sample ID: MW-33 MW-35 MW-36 VER-1 VER-2 VER-3 VER-4 SRW-1 SRW-2 SRW-3 DRW-1 DRW-2 DRW-3 Constituent Date Sampled: 11/4/2009 11/4/2009 11/3/2009 11/3/2009 11/3/2009 11/3/2009 11/3/2009 11/3/2009 11/3/2009 11/3/2009 11/3/2009 11/3/2009 11/3/2009

Volatile Organics (USEPA Method 8260) µg/L

NCAC 2L GW

Standard

Acetone 6,000 25 U 25 U 25 U 25 U 2,500 U 6,200 U 25 U 25 U 250 U 250 U 1200 U 25 U 25 U Benzene 1 1 U 1 U 1 U 1 U 750 310 1 U 1 U 10 U 10 U 50 U 1 U 1 U Bromobenzene 88* 1 U 1 U 1 U 1 U 100 U 250 U 1 U 1 U 10 U 10 U 50 U 1 U 1 U Chlorobenzene 50 1 U 1 U 1 U 1 U 100 U 250 U 1 U 6.5 10 U 10 U 50 U 1 U 1 U Chloroform 70 1 U 1 U 1 U 2 3,700 800 1.8 1 U 10 U 10 U 50 U 1 U 1 U Chloromethane 3 1 U 1 U 1 U 1 U 100 U 250 U 1 U 1 U 10 U 10 U 50 U 1 U 1 U 1,4-Dichlorobenzene 6 1 U 1 U 1 U 1 U 100 U 250 U 1 U 2 10 U 10 U 50 U 1 U 1 U 1,1-Dichloroethane 6 1 U 1 U 1 U 1 U 100 U 250 U 1 U 1 U 10 U 10 U 50 U 1 U 1 U 1,2-Dichloroethane 0.4 1 U 1 U 1 U 1 U 250 250 U 1 U 1 U 55 13 120 1.7 1 U cis-1,2-Dichloroethene 70 1 U 1 U 1 U 1 U 100 U 250 U 1 U 1 U 10 U 10 U 50 U 1 U 1 U trans-1,2-Dichloroethene 100 1 U 1 U 1 U 1 U 100 U 250 U 1 U 1 U 10 U 10 U 50 U 1 U 1 U Diethyl ether 7,300* 10 U 10 U 10 U 10 U 3,500 13,000 10 U 31 1,600 D 860 3,800 D 59 18 Ethylbenzene 600 1 U 1 U 1 U 1 U 100 U 250 U 1 U 1 U 10 U 10 U 50 U 1 U 1 U Methyl tert-butyl ether 20 10 U 10 U 120 10 U 1000 U 2500 U 10 U 10 U 100 U 100 U 500 U 10 U 10 U Methylene Chloride 5 5 U 5 U 5 U 5 U 1,500 1,500 5 U 5 U 50 U 50 U 250 U 5 U 5 U 1,1,2,2-Tetrachloroethane 0.2 1 U 1 U 1 U 1 U 110 250 U 1 U 1 U 10 U 10 U 50 U 1 U 1 U Tetrachloroethane 0.7 1 U 1 U 1 U 1 U 100 U 250 U 1 U 1 U 10 U 10 U 50 U 1 U 1 U Toluene 600 1 U 1 U 1 U 1 U 100 U 250 U 1 U 1 U 10 U 10 U 50 U 1 U 1 U Trichloroethene 3 1 U 1 U 1 U 1 U 190 250 U 1 U 1 U 10 U 10 U 50 U 1 U 1 U Trichlorofluoromethane 2,000 1 U 1 U 1 U 1 U 100 U 250 U 1 U 1 U 10 U 10 U 50 U 1 U 1 U Vinyl chloride 0.03 1 U 1 U 1 U 1 U 100 U 250 U 1 U 1 U 10 U 10 U 50 U 1 U 1 U Xylenes, Total 500 2 U 2 U 2 U 2 U 200 U 500 U 2 U 2 U 20 U 20 U 100 U 2 U 2 U




1

Page 1 of 12

Table 10. Historical Groundwater Analytical Data, UNC Airport Road Waste Disposal Area, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.

Constituent Sample ID:

Date Sampled: MW-1

07/22/04 MW-1

01/11/07 MW-1

04/18/07 MW-1

07/11/07 MW-1

10/03/07 MW-1

10/22/08 MW-1

11/05/09 MW-2

07/21/04 MW-2

01/11/07 MW-2

04/18/07 MW-2

07/11/07 MW-2

10/03/07 MW-2

10/22/08 MW-2

11/04/09

Volatile Organics (USEPA Method 8260) ug/L

Acetone Benzene Chlorobenzene Chloroform 1,4-Dichlorobenzene 1,1-Dichloroethane 1,2-Dichloroethane Cis-1,2-Dichloroethene Trans-1,2-Dichloroethene Diethyl ether Ethylbenzene Methyl tert-butyl ether Methylene chloride 1,1,2,2-Tetrachloroethane Tetrachloroethene Toluene Trichloroethene Trichlorflouromethane Vinyl chloride Xylenes, Total

NCAC 2L GW

Standard

6,000 1

50 70 6 6

0.4 70

100 7,300*

600 20 5

0.2 0.7 600

3 2,000 0.03 500

260,000 100,000 1,000 U 190,000 1,000 U 1,000 U 9,900

1000 U1

NA 290,000 140,000

NA 8,000

1,000 U 1,000 U 1,000 U 14,000 1,000 U 1,000 U 2,300

20,000 27,000 D

330 55,000 D

100 U 100 U 100 U 100 U 100 U

85,000 D 2,600 NA

36,000 D 4,300 140

100 U 5,300 100 U 100 U 1,700

50,000 U 26,000 2,000 U 49,000 2,000 U 2,000 U 2,000 U 2,000 U 2,000 U 110,000 2,000 U

NA 41,000 3,600

2,000 U 2,000 U 3,700

2,000 U 2,000 U 4,000 U

10,000 U 19,000 400 U 37,000 400 U 400 U 1,800 400 U 400 U 40,000 1,100 NA

29,000 3,300 400 U 400 U 2,900 400 U 400 U 1,100

5,000 U 31,000

560 51,000 D

200 U 200 U 200 U 200 U 200 U

53,000 D 1,700 NA

27,000 3,400 200 U 200 U 3,200 200 U 200 U 2,400

25,000 U 25,000 1,000 U 28,000 1,000 U 1,000 U 1,000 U 1,000 U 1,000 U 39,000 1,000 U

10,000 U 18,000 1,000 U 1,000 U 1,000 U 1,200

1,000 U 1,000 U 2,000 U

25,000 U 14,000 1,000 U 28,000 1,000 U 1,000 U 1,400

1,000 U 1,000 U 44,000 1,000 U 1,000 U 19,000 1,000 U 1,000 U 1,000 U 1,000 U 1,000 U 1,000 U 2,000 U

50,000 U 25,000 2,000 U 130,000 2,000 U 2,000 U 2,000 U 4,000 U1

NA 130,000 58,000

NA 2,000 U 2,000 U 2,000 U 2,000 U 2,000 U 2,000 U 2,000 U 4,000 U

39,000 27,000 D

380 120,000 D

100 U 100 U 4,900 100 U 100 U

96,000 D 2,400 NA

48,000 D 190

100 U 2,600 490

100 U 100 U 12,000

50,000 U 23,000 2,000 U 94,000 2,000 U 2,000 U 4,700

2,000 U 2,000 U 130,000 2,000 U

NA 52,000 2,000 U 2,000 U 2,000 U 2,000 U 2,000 U 2,000 U 54,000

98,000 28,000 1,000 U 110,000 1,000 U 1,000 U 4,300

1,000 U 1,000 U 72,000 2,400 NA

55,000 1,000 U 1,000 U 4,800

1,000 U 1,000 U 1,000 U 13,000

60,000 32,000

630 110,000 D

500 U 500 U 5,700 500 U 500 U

64,000 D 3,400 NA

39,000 500 U 500 U 6,400 630

500 U 500 U 18,000

25,000 U 16,000 1,000 U 47,000 1,000 U 1,000 U 1,000 U 1,000 U 1,000 U 42,000 1,100

10,000 U 19,000 1,000 U 1,000 U 1,000 U 1,000 U 1,900

1,000 U 3,900

25,000 U 15,000 1,000 U 49,000 1,000 U 1,000 U 2,700

1,000 U 1,000 U 54,000 1,000 U

10,000 U 37,000 1,000 U 1,000 U 1,000 U 1,000 U 1,000 U 1,000 U 2,200

NCAC 2L North Carolina Administrative Code 2L Groundwater Standard ug/L Micrograms per liter. U Constituent was not detected above the reporting limit. D Constituent concentration was quantitated using a secondary dilution. NA Not analyzed.

Cis-1,2-Dichloroethene & trans-1,2-Dichloroethene were analyzed as one constituent (Cis/Trans-1,2-Dichloroethene). USEPA Risk-Based Concentration (RBC) for tap water (no NCAC 2L Groundwater Standard exists).* Indicates that the reported concentration exceeds the NCAC 2L Groundwater Standard or RBC.

G:\ENV\UNIVNC\Airport Road\NC000239.0018\2009 Remedial System Report\Tables\Table 10 Historical Data Summary.xlsx

1

Page 2 of 12



Date Sampled: MW-3

07/21/04 MW-3

01/11/07 MW-3

04/18/07 MW-3

07/11/07 MW-3

10/03/07 MW-3

10/22/08 MW-3

11/04/09 MW-4

07/20/04 MW-4

10/01/07 MW-4

10/20/08 MW-4

11/03/09 MW-5

11/03/09


NCAC 2L GW

Standard

Acetone 6,000 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U Benzene 1 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Chlorobenzene 50 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Chloroform 70 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1,4-Dichlorobenzene 6 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1,1-Dichloroethane 6 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1,2-Dichloroethane 0.4 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Cis-1,2-Dichloroethene 70 2.0 U1 1 U 1 U 1 U 1 U 1 U 1 U 2.0 U1 1 U 1 U 1 U 1 U Trans-1,2-Dichloroethene 100 NA 1 U 1 U 1 U 1 U 1 U 1 U NA 1 U 1 U 1 U 1 U Diethyl ether 7,300* 16 U 2 U 10 U 10 U 10 U 10 U 10 U 2 U 10 U 10 U 10 U 10 U Ethylbenzene 600 5 U 1 U 1 U 1 U 1 U 1 U 1 U 5 U 1 U 1 U 1 U 1 U Methyl tert-butyl ether 20 NA NA NA NA NA 10 U 10 U NA NA 10 U 10 U 10 U Methylene chloride 5 1 U 5 U 5 U 5 U 5 U 5 U 5 U 1 U 5 U 5 U 5 U 5 U 1,1,2,2-Tetrachloroethane 0.2 1 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Tetrachloroethene 0.7 1 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Toluene 600 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Trichloroethene 3 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Trichlorflouromethane 2,000 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Vinyl chloride 0.03 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U Xylenes, Total 500 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U




1

Page 3 of 12



Date Sampled: MW-6

07/21/04 MW-6

02/06/07 MW-6

04/18/07 MW-6

07/12/07 MW-6

10/02/07 MW-6

10/21/08 MW-6

11/04/09 MW-7

07/21/04 MW-7

01/11/07 MW-7

04/18/07 MW-7

07/12/07 MW-7

10/02/07 MW-7

10/21/08 MW-7

11/04/09



NCAC 2L GW

Standard

6,000 1

50 70 6 6

0.4 70

100 7,300*

600 20 5

0.2 0.7 600

3 2,000 0.03 500

1,200 U 910 50 U 470 50 U 50 U 50 U

200 U1

NA 12,000

390 NA

50 U 50 U 50 U 50 U 28 J 50 U 50 U

100 U

500 U 920 20 U 510 20 U 20 U 42

20 U 20 U

10,000 D 20 U NA 490 20 U 20 U 20 U 25

20 U 20 U 40 U

2,500 U 690

100 U 370

100 U 100 U 100 U 100 U 100 U

20,000 D 100 U

NA 500 U 100 U 100 U 100 U 100 U 100 U 100 U 200 U

2,500 U 960

100 U 250

100 U 100 U 100 U 100 U 100 U 8,400 100 U

NA 500 U 100 U 100 U 100 U 100 U 100 U 100 U 200 U

130 U 790 5 U 20 5 U 5 U 5 U 13 12

20,000 D 5 U NA

25 U 5 U 5 U 5 U 18 5 U 5 U

10 U

1,200 U 170 50 U 50 U 50 U 50 U 50 U 50 U 50 U 2,700 50 U

500 U 250 U 50 U 50 U 50 U 50 U 50 U 50 U

100 U

25 U 200

1 39 1 U 1 U 18 1.8 3.3

4,700 D 1 U

10 U 25 1 U 1 U 1 U 6.5 1.3 1 U 2 U

5 U 2.7 U 8.3

6.9 U 1 U 1 U 49

2.0 U1

NA 2,300 5 U NA 1 U 1 U 1 U 1 U 4.2 1 U 5.5 2 U

250 U 10 U 14

10 U 10 U 10 U 52

10 U 10 U

3,400 D 10 U NA

50 U 10 U 10 U 10 U 10 U 10 U 10 U 20 U

6,300 U 250 U 250 U 250 U 250 U 250 U 250 U 250 U 250 U 19,000 250 U

NA 1,300 U 250 U 250 U 250 U 250 U 250 U 250 U 500 U

2,500 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 8,200 100 U

NA 500 U 100 U 100 U 100 U 100 U 100 U 100 U 200 U

25 U 2.5 5.6 1.2 1 U 1 U 38 7.9 12

10,000 D 1 U NA 5 U 1 U 1 U 1 U 18 1 U 5.9 2 U

1,200 U 50 U 50 U 50 U 50 U 50 U 50 U 50 U 50 U 3,300 50 U

500 U 250 U 50 U 50 U 50 U 50 U 50 U 50 U

100 U

2,500 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 4,300 100 U

1,000 U 500 U 100 U 100 U 100 U 100 U 100 U 100 U 200 U




1

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Date Sampled: MW-9

07/22/04 MW-9

10/03/07 MW-9

10/21/08 MW-9

11/04/09 MW-11 07/22/04

MW-11 01/11/07

MW-11 04/17/07

MW-11 07/12/07

MW-11 10/03/07

MW-11 10/21/08

MW-11 11/02/09



NCAC 2L GW

Standard

6,000 1

50 70 6 6

0.4 70

100 7,300*

600 20 5

0.2 0.7 600

3 2,000 0.03 500

25 U 1 U 1 U 1 U 1 U 1 U 1.2

2.0 U1

NA 140 5 U NA 1 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

110 D 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

50 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 110 2 U

20 U 10 U 2 U 2 U 2 U 2 U 2 U 2 U 4 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

95 D 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

1,200 U 50 U 50 U 50 U 50 U 50 U 56

100 U1

NA 3,100 250 U

NA 50 U 50 U 50 U 50 U 50 U 50 U 50 U

100 U

130 U 5 U 5 U 5.1 5 U 5 U 26 5 U 5 U

1,300 D 5 U NA

25 U 5 U 5 U 5 U 5 U 5 U 5 U

10 U

630 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 25 U 1,100 25 U NA

130 U 25 U 25 U 25 U 25 U 25 U 25 U 50 U

250 U 10 U 10 U 10 U 10 U 10 U 10

10 U 10 U 420 10 U NA

50 U 10 U 10 U 10 U 10 U 10 U 10 U 20 U

25 U 1 U 2.8 4.8 1 U 1 U 17 1.1 1 U

610 D 1 U NA 5 U 1 U 1 U 1 U 4.0 1 U 2.2 2 U

250 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 340 10 U 10 U 50 U 10 U 10 U 10 U 10 U 10 U 10 U 20 U

25 U 1 U 1.5 1.9 1 U 1 U 8.3 1 U 1 U

290 D 1 U

10 U 5 U 1 U 1 U 1 U 1.9 1.3 1.4 2 U




1

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Date Sampled: MW-12 07/21/04

MW-12 01/11/07

MW-12 04/18/07

MW-12 07/11/07

MW-12 10/02/07

MW-12 10/21/08

MW-12 11/03/09

MW-13 07/21/04

MW-13 01/10/07

MW-13 04/17/07

MW-13 07/12/07



NCAC 2L GW

Standard

6,000 1

50 70 6 6

0.4 70

100 7,300*

600 20 5

0.2 0.7 600

3 2,000 0.03 500

500 U 470 23 21

20 U 20 U 360

40 U1

NA 13,000 100 U

NA 20 U 20 U 20 U 20 U 35

20 U 20 U 40 U

130 U 5 U 5 U 5 U 5 U 5 U 19 5 U 5 U

720 D 5 U NA

25 U 5 U 5 U 5 U 5 U 5 U 5 U

10 U

130 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 300 5 U NA

25 U 5 U 5 U 5 U 5 U 5 U 5 U

10 U

25 U 1 U 1 U 1 U 1 U 1 U 3.6 1 U 1 U 150 1 U NA 5 U 1 U 1 U 1 U 3.1 1 U 1 U 2 U

25 U 1.5 1 U 3.4 1 U 1 U 14 1 U 1 U

360 D 1 U NA 5 U 1 U 1 U 1 U 4.4 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1.6 1 U 1 U 94 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

120 U 22 8.2 5 U 5 U 5 U 96

10 U1

NA 4,200 25 U NA 5 U 5 U 5 U 5 U 5 U 5 U 5 U

10 U

25 U 16 1 U 1.9 1 U 1 U 3.2 1 U 1 U

330 D 1 U NA 5 U 1 U 1 U 1 U 1.1 1 U 1 U 2 U

130 U 6.8 5 U 5 U 5 U 5 U 5 U 5 U 5 U 450 5 U NA

25 U 5 U 5 U 5 U 5 U 5 U 5 U

10 U

500 U 20 U 20 U 20 U 20 U 20 U 20 U 20 U 20 U 990 20 U NA

100 U 20 U 20 U 20 U 20 U 20 U 20 U 40 U




1

Page 6 of 12




MW-14 01/11/07

MW-14 04/18/07

MW-14 07/11/07

MW-14 10/03/07

MW-14 10/22/08

MW-14 11/05/09

MW-15 07/21/04

MW-15 01/11/07

MW-15 04/18/07

MW-15 07/11/07

MW-15 10/02/07

MW-15 10/21/08

MW-15 11/05/09



NCAC 2L GW

Standard

6,000 1

50 70 6 6

0.4 70

100 7,300*

600 20 5

0.2 0.7 600

3 2,000 0.03 500

170 190 5 U 53 5 U 5 U 50

40 U1

NA 1,800 25 U NA 5 U 5 U 5 U 5 U 10 5 U 5 U

10 U

130 U 190 5 U 46 5 U 5 U 42 5 U 5 U

3,100 5 U NA

25 U 5 U 5 U 5 U 9.3 5 U 5 U

10 U

2,500 U 230

100 U 100 U 100 U 100 U 100 U 100 U 100 U 5,400 100 U

NA 500 U 100 U 100 U 100 U 100 U 100 U 100 U 200 U

1,300 U 260 50 U 50 U 50 U 50 U 50 U 50 U 50 U 2,500 50 U NA

250 U 50 U 50 U 50 U 50 U 50 U 50 U

100 U

1,300 U 210 50 U 50 U 50 U 50 U 50 U 50 U 50 U 1,800 50 U NA

250 U 50 U 50 U 50 U 50 U 50 U 50 U

100 U

500 U 59

20 U 20 U 20 U 20 U 20 U 20 U 20 U 800 20 U

200 U 100 U 20 U 20 U 20 U 20 U 20 U 20 U 40 U

500 U 54

20 U 20 U 20 U 20 U 27

20 U 20 U 880 20 U

200 U 100 U 20 U 20 U 20 U 20 U 20 U 20 U 40 U

1,600 930 50 U 180 50 U 50 U 380

100 U1

NA 14,000 250 U

NA 50 U 50 U 50 U 50 U 50 U 50 U 50 U

100 U

250 U 10 U 10 U 10 U 10 U 10 U 190 10 U 10 U

9,800 D 10 U NA

50 U 10 U 10 U 10 U 24

10 U 10 U 20 U

5,000 U 200 U 200 U 200 U 200 U 200 U 200 U 200 U 200 U 10,000 200 U

NA 1,000 U 200 U 200 U 200 U 200 U 200 U 200 U 400 U

2,500 U 150

100 U 100 U 100 U 100 U 110

100 U 100 U 5,300 100 U

NA 500 U 100 U 100 U 100 U 100 U 100 U 100 U 200 U

25 U 130 15 1.6 1 U 1.7 120 2.8 3.2

4,700 D 1 U NA 5 U 1 U 1 U 1 U 15 1 U 2.7 2 U

2,500 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 4,200 100 U

1,000 U 100 U 100 U 100 U 100 U 100 U 100 U 100 U 200 U

2,500 U 100 U 100 U 100 U 100 U 100 U 150

100 U 100 U 4,400 100 U

1,000 U 500 U 100 U 100 U 100 U 100 U 100 U 100 U 200 U




1

Page 7 of 12




MW-16 10/02/07

MW-16 10/21/08

MW-16 11/05/09

MW-17 07/20/04

MW-17 10/02/07

MW-17 10/22/08

MW-17 11/02/09

MW-21 07/19/04

MW-21 11/05/09



NCAC 2L GW

Standard

6,000 1

50 70 6 6

0.4 70

100 7,300*

600 20 5

0.2 0.7 600

3 2,000 0.03 500

25 U 1 U 1 U 1 U 1 U 1 U 1 U

2.0 U1

NA 3.5 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 221

NA 110 5 U NA 1 U 1 U 1 U 1 U 1.3 1 U 20 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 8.8 1 U 39 1 U NA 5 U 1 U 1.3 1 U 2.5 1 U 5.1 2 U

25 U 1.2 1.3 1 U 2.6 1 U 7.3 7.3 1 U 43 1 U

10 U 5 U 1 U 1.3 1 U 2.0 1 U 5.7 2 U

25 U 1.3 1.7 1 U 3.3 1 U 1 U 5.9 1 U 37 1 U

10 U 5 U 1 U 1 U 1 U 1.5 1 U 4.6 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U1

NA 2 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U




1

Page 8 of 12




MW-22 10/02/07

MW-22 10/21/08

MW-22 11/03/09

MW-23 07/20/04

MW-23 10/01/07

MW-23 10/20/08

MW-23 11/02/09

MW-24 07/22/04

MW-24 11/03/09

MW-25 07/21/04

MW-25 01/10/07

MW-25 04/17/07

MW-25 07/12/07

MW-25 11/02/09



NCAC 2L GW

Standard

6,000 1

50 70 6 6

0.4 70

100 7,300*

600 20 5

0.2 0.7 600

3 2,000 0.03 500

50 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U 5 U NA 5 U 5 U 5 U 5 U 5 U 5 U

10 U 5 U

25 U 1 U 3.3 1 U 1 U 1 U 1 U 1 U 1 U 26 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 11 1 U 2.8 1 U 1 U 1 U 1 U 12 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 4.6 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

50 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U 5 U NA 2 U 2 U 2 U 2 U 2 U 2 U 2 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1.1 1 U 1 U 1 U 1 U 1 U 1 U 1 U 6

1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U

2.0 U1

NA 45 5 U NA 1 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U




1

Page 9 of 12




MW-26 01/10/07

MW-26 04/17/07

MW-26 07/12/07

MW-26 10/02/07

MW-26 10/23/08

MW-26 11/02/09

MW-28 10/02/07

MW-28 10/22/08

MW-28 11/04/09

MW-29 07/21/04

MW-29 11/04/09



NCAC 2L GW

Standard

6,000 1

50 70 6 6

0.4 70

100 7,300*

600 20 5

0.2 0.7 600

3 2,000 0.03 500

25 U 1 U 1 U 1 U 1 U 1 U 1 U

2.0 U1

NA 2 U 5 U NA 1 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1.1 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U

2.0 U1

NA 2 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U




1

Page 10 of 12




MW-30 01/10/07

MW-30 04/17/07

MW-30 07/11/07

MW-30 10/01/07

MW-30 10/20/08

MW-30 11/03/09

MW-31 07/20/04

MW-31 01/10/07

MW-31 04/17/07

MW-31 07/11/07

MW-31 10/01/07

MW-31 10/20/08

MW-31 11/03/09



NCAC 2L GW

Standard

6,000 1

50 70 6 6

0.4 70

100 7,300*

600 20 5

0.2 0.7 600

3 2,000 0.03 500

25 U 1 U 1 U 1 U 1 U 1 U 1 U

2.0 U1

NA 2 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1.3 4.1 2.1 1 U 1 U 25

2.0 U1

NA 2,000 5 U NA 1 U 1 U 1 U 1 U 5.0 1 U 5.4 2 U

25 U 1 U 2.4 2.5 1 U 1 U 14 1.0 1 U

640 D 1 U NA 5 U 1 U 1 U 1 U 3.0 1 U 2.4 2 U

250 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 10 U 400 10 U NA

50 U 10 U 10 U 10 U 10 U 10 U 10 U 20 U

50 U 2 U 2 U 2 U 2 U 2 U 4.5 2 U 2 U 160 2 U NA

20 U 2 U 2 U 2 U 2 U 2 U 2 U 4 U

25 U 1 U 1 U 1.4 1 U 1 U 3.7 1 U 1 U

120 D 1 U NA 5 U 1 U 1 U 1 U 1.3 1 U 1 U 2 U

25 U 1 U 1 U 1.2 1 U 1 U 1.6 1 U 1 U 39 1 U

10 U 5 U 1 U 1 U 1 U 1.3 1.5 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 14 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U




1

Page 11 of 12




MW-32 01/10/07

MW-32 04/17/07

MW-32 07/11/07

MW-32 10/01/07

MW-32 10/20/08

MW-32 11/04/09

MW-33 07/20/04

MW-33 01/10/07

MW-33 04/17/07

MW-33 07/11/07

MW-33 10/01/07

MW-33 10/20/08

MW-33 11/04/09



NCAC 2L GW

Standard

6,000 1

50 70 6 6

0.4 70

100 7,300*

600 20 5

0.2 0.7 600

3 2,000 0.03 500

25 U 1 U 1 U 1 U 1 U 1 U 1 U

2.0 U1

NA 2 U 5 U NA 1 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 2.4 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U

2.0 U1

NA 30 5 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 28 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 16 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U




1

Page 12 of 12




MW-35 10/01/07

MW-35 10/21/08

MW-35 11/04/09

MW-36 07/20/04

MW-36 10/01/07

MW-36 10/20/08

MW-36 11/03/09



NCAC 2L GW

Standard

6,000 1

50 70 6 6

0.4 70

100 7,300*

600 20 5

0.2 0.7 600

3 2,000 0.03 500

25 U 1 U 1 U 1 U 1 U 1 U 1 U

2.0 U1

NA 2 U 5 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U

10 U 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U

2.0 U1

NA 2 U 5 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U NA 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U 45 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U

25 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U 1 U

10 U 1 U 120 5 U 1 U 1 U 1 U 1 U 1 U 1 U 2 U




of 1

Table 11. Summary of Analytical Results for Surface Water Samples Collected in November 2009, UNC Airport Road Waste Disposal Area, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.

Sample ID: SW-2 SW-3 SW-4 SW-5 SW-6 Constituent Date Sampled: 11/03/09 11/03/09 11/03/09 11/03/09 11/03/09

Volatile Organics (USEPA Method 8260) ug/L ND ND ND ND ND

ug/L Micrograms per liter. ND Constituent was not detected above the reporting limit.

G:\ENV\UNIVNC\Airport Road\NC000239.0018\2009 Remedial System Report\Tables\Table 11 SW analytical.xlsx


Figures

SW-6

MW-20 MW-34 MW-35

MW-32MW-37

MW-33SW-5

MW-5 MW-36

MW-27 (Abandoned)DRW-3

MW-23MW-21 MW-26

MW-25SW-4 MW-30 MW-4

DRW-2 MW-31

SW-1 MW-11 MW-13

GROUNDWATER TREATMENTMW-24SRW-3 MW-15 SYSTEMMW-19

MW-6SW-3 DRW-1 SRW-1 MW-12

MW-9MW-7SRW-2

MW-22

VER-4 VER-3MW-14

SW-2 VER-2 MW-1MW-16

VER-1MW-18

MW-2 MW-3

MW-28

MW-17

MW-29FORMER UNC AIRPORT ROAD WASTE DISPOSAL AREA

MONITOR WELL AND RECOVERY WELL LOCATION MAP

FIGURE

2

455

450

046

460

470 475

465

470

475

452.14 454

MW-20 MW-34 MW-35Dry

MW-32MW-37

MW-33 MW-5

449.22 MW-36 MW-27 (Abandoned)

DRW-3 450

MW-23 MW-26MW-21 455MW-25

448.64 MW-30 MW-4 453.91

DRW-2 MW-31

MW-11 MW-13

MW-24MW-15SRW-3MW-19 439.11469.27 MW-6 452.01 DRW-1 454.53

SRW-1 MW-12 447.43 MW-9MW-7SRW-2

438.50MW-22 455.60

VER-4 VER-3 472.03MW-14 464.44

VER-2 MW-1MW-16 464.56 464.91 VER-1

MW-18 474.60463.17

MW-2 MW-3463.95 479.18 MW-28

MW-17

MW-29

GROUNDWATER POTENTIOMETRIC SURFACE OF THE SHALLOW AQUIFER

NOVEMBER 2009 FIGURE

3

440

435

445

450

435

440

445

450

455

460 455

465 460

465

452.14 454

MW-20 MW-34

438.44 MW-35

386.69

MW-37 436.22

MW-32 437.09

MW-33 433.48 MW-5

MW-36

DRW-3 MW-27 (Abandoned) 446.04

424.00 MW-23MW-21 MW-26440.93447.28 430.75MW-25

MW-4MW-30 436.07DRW-2 MW-31

417.60 433.87 MW-11

437.90MW-13 MW-24MW-15SRW-3MW-19 451.95442.14 MW-6

DRW-1 MW-12 445.11SRW-1

SRW-2 MW-7 451.67

MW-9 461.00

MW-22

VER-4 MW-14 VER-3 453.05

MW-16 VER-2 MW-1 460.02

VER-1MW-18

MW-2 MW-3

MW-28 474.10

MW-17 460.52

MW-29 465.72

GROUNDWATER POTENTIOMETRIC SURFACE OF THE BEDROCK AQUIFER

NOVEMBER 2009 FIGURE

4

1 10

100

1,00010,000

920 100

NS

MW-20 MW-34 MW-35NS

MW-32MW-37

MW-33 MW-5 <1.0 MW-36


MW-23MW-21 MW-26

MW-25 <1.0 MW-30 MW-4

<1.0 DRW-2 MW-31

MW-11 MW-13

MW-24MW-15SRW-3MW-19 <10NS MW-6 DRW-1 200

MW-12SRW-1 <1.0<1.0 MW-9MW-7SRW-2

<10MW-22 <1.0

VER-4 VER-3MW-14

VER-2 MW-1MW-16 14,000

VER-1MW-18

NS MW-2 MW-3

15,000 <1.0 MW-28

MW-17

MW-29

BENZENE ISOCONCENTRATION CONTOUR MAP OF THE SHALLOW

AQUIFER - NOVEMBER 2009 FIGURE

5

1

10 100

1,000

10,000

920 100

NS

MW-20 MW-34 MW-35NS

MW-32MW-37

MW-33 MW-5 <1.0 MW-36


MW-23MW-21 MW-26

MW-25 <1.0 MW-30 MW-4

<1.0 DRW-2 MW-31

MW-11 MW-13


MW-12SRW-1 <1.0<1.0 MW-9MW-7SRW-2

<10MW-22 <1.0

VER-3 VER-4

MW-14

VER-2 MW-1MW-16 28,000

VER-1MW-18

NS MW-2 MW-3

49,000 <1.0 MW-28

MW-17

MW-29

CHLOROFORM ISOCONCENTRATION CONTOUR MAP OF THE SHALLOW


6

5

10

100

1,000

10,000

920 100

NS

MW-20 MW-34 MW-35NS

MW-32MW-37

MW-33 MW-5 <5 MW-36


MW-23MW-21 MW-26

MW-25 <5 MW-30 MW-4

<5 DRW-2 MW-31

MW-11 MW-13


MW-12SRW-1 <5<5 MW-7SRW-2

MW-9

<50MW-22

<5 VER-4

VER-3MW-14

VER-2 MW-1MW-16 19,000

VER-1MW-18

NS MW-2

37,000 MW-3 <5

MW-28

MW-17

MW-29

METHYLENE CHLORIDE ISOCONCENTRATION CONTOUR MAP OF

THE SHALLOW AQUIFER-NOVEMBER 2009 FIGURE

7

10

1001,000

10,000

920 100

NS

MW-20 MW-34 MW-35NS

MW-32MW-37

MW-33 MW-5 <10 MW-36


MW-23MW-21 MW-26

MW-25 <10 MW-30 MW-4

<10 DRW-2 MW-31

MW-11 MW-13

MW-24MW-15SRW-3MW-19 860 MW-6NS DRW-1 4,700

SRW-1 MW-12 <10 MW-931 MW-7SRW-2

1,600MW-22 <10

VER-4 VER-3MW-14

VER-2 MW-1MW-16 44,000

VER-1MW-18

NS MW-2 MW-354,000 <10

MW-28

MW-17

MW-29

DIETHYL ETHER ISOCONCENTRATION CONTOUR MAP OF THE SHALLOW

AQUIFER-NOVEMBER 2009 FIGURE

8

1

10

920 100

NS

MW-20 MW-34 MW-35 NS <1.0

MW-32MW-37 <1.0NS MW-33 <1.0 MW-5

MW-36 <1.0

MW-27 (Abandoned)DRW-3 <1.0

MW-23MW-21 MW-26<1.0<1.0 <1.0MW-25

MW-30 MW-4 <1.0

DRW-2 MW-31 <1.0 <1.0

MW-11 MW-13 <1.0

<100 NSMW-24MW-15SRW-3MW-19 <1.0 MW-6

DRW-1 SRW-1 MW-12 <50

MW-9MW-7SRW-2 <1.0<100 MW-22

MW-16

VER-4 VER-3MW-14

59 VER-2 MW-1

<1.0 VER-1

MW-18

MW-2 MW-3

MW-28 <1.0

MW-17 1.3

MW-29 <1.0

BENZENE ISOCONCENTRATION CONTOUR MAP OF THE BEDROCK


9

10 1

920 100

NS

MW-20 MW-34 MW-35 NS <1.0

MW-32MW-37 <1.0NS MW-33 <1.0 MW-5

MW-36 <1.0

MW-27 (Abandoned)DRW-3 <1.0

MW-23MW-21 MW-26<1.0<1.0 <1.0MW-25

MW-30 MW-4 <1.0

DRW-2 MW-31 <1.0 <1.0

MW-11 MW-13 1.9

<100 NSMW-24MW-15SRW-3MW-19 <1.0 MW-6

DRW-1 SRW-1 MW-12 <50

MW-9MW-7SRW-2 <1.0<100 MW-22

VER-4 VER-3MW-14

MW-16 <1.0

VER-1

<20VER-2 MW-1

MW-18

MW-2 MW-3

MW-28 <1.0

MW-17 <1.0

MW-29 <1.0

CHLOROFORM ISOCONCENTRATION CONTOUR MAP OF THE BEDROCK


10

1,000

100

10

920 100

NS

MW-20 MW-34 MW-35 NS <10

MW-32MW-37 <10NS MW-33 <10 MW-5

MW-36 <10

MW-27 (Abandoned)DRW-3 18

MW-23MW-21 MW-26<10<10 <10MW-25

MW-30 MW-4 <10

DRW-2 MW-31 59 14

MW-11 MW-13 2904400 NSMW-24MW-15SRW-3MW-19 <10

MW-6 DRW-1

SRW-1 MW-12 3800 MW-9MW-7SRW-2 954300

MW-22

VER-4 VER-3MW-14

880 VER-2 MW-1MW-16

<10 VER-1

MW-18

MW-2 MW-3

MW-28 <10

MW-17 37

MW-29 <10

DIETHYL ETHER ISOCONCENTRATION CONTOUR MAP OF THE BEDROCK


11

MW-23

10,0001,000

100

1

SOUTH NORTH

SRW-1 <1.0

MW-24 VER-2 <1.0

750 DRW-1 MW-29 MW-28

<1.0 <1.0 MW-3 <1.0

MW-1 14,000

MW-14 54

<50 MW-15 < 100

MW-12 <1.0 MW-21

<1.0

Cross Section Location MW-20

MW-34 MW-35

MW-32MW-37

MW-33SW-5

MW-5 MW-36North MW-27 (Abandoned)

MW-23MW-21 MW-26

MW-25 MW-30SW-4 MW-4

MW-31

MW-11 MW-13

MW-15 MW-24 SRW-3

SW-3 MW-6 DRW-1

MW-12 (CH-2) MW-7 MW-9

MW-22

VER-3VER-4

(CH-1)

MW-16 MW-1

MW-14

VER-2 VER-1

MW-2

MW-3

MW-28

WASTE DISPOSAL MW-29

AREA South

Not to Scale

190

100

BENZENE ISOCONCENTRATION CROSS SECTION - NOVEMBER 2009

FIGURE

12

MW-23

10,000

5,000

1,000

100

SOUTH NORTH

SRW-1 31

MW-24 <10VER-2

3,500 DRW-1 MW-29 MW-28 MW-1 3,800MW-3 MW-14 MW-15<10 <10 <10 44,000 880 4,400

MW-12 MW-21<10 <10

Cross Section Location MW-20

MW-34 MW-35

MW-32MW-37

MW-33SW-5

MW-5 MW-36North MW-27 (Abandoned)

MW-23MW-21 MW-26

MW-25 MW-30SW-4 MW-4

MW-31

MW-11 MW-13

MW-15 MW-24 SRW-3

SW-3 MW-6 DRW-1

MW-12 (CH-2) MW-7 MW-9

MW-22

MW-14 VER-3VER-4 (CH-1)

MW-16 MW-1VER-2 VER-1

MW-2

MW-3

MW-28

WASTE DISPOSAL MW-29

AREA South

Not to Scale

190

100

DIETHYL ETHER ISOCONCENTRATION CROSS SECTION - NOVEMBER 2009

FIGURE

13

Appendix A

Discharge Monitoring Reports

Appendix B

Laboratory Analytical Data Reports for Groundwater Samples

ANALYTICAL REPORT

Job Number: 680-52310-1

Job Description: UNC Airport Road

For: ARCADIS U.S., Inc.

801 Corporate Center Drive Suite 300

Raleigh, NC 27607-5073

Attention: Mr. Alan Pinnix

_____________________________________________

Approved for release. Kathryn Smith Project Manager I 11/16/2009 10:28 AM

Kathryn Smith Project Manager I

[email protected] 11/16/2009

cc: Mr. Adam Tripp

The test results in this report meet NELAP requirements for parameters for which accreditation is required or available. Any exceptions to the NELAP requirements are noted. Results pertain only to samples listed in this report. This report may not be reproduced, except in full, without the written approval of the laboratory. Questions should be directed to the person who signed this report.

Savannah Certifications and ID #s: A2LA: 0399.01; AL: 41450; ARDEQ: 88-0692; ARDOH; CA: 03217CA; CO; CT: PH0161; DE; FL: E87052; GA: 803; Guam; HI; IL: 200022; IN; IA: 353; KS: E-10322; KY EPPC: 90084; KY UST; LA DEQ: 30690; LA DHH: LA080008; ME: 2008022; MD: 250; MA: M-GA006; MI: 9925; MS; NFESC: 249; NV: GA00006; NJ: GA769; NM; NY: 10842; NC DWQ: 269; NC DHHS: 13701; PA: 68-00474; PR: GA00006; RI: LAO00244; SC: 98001001; TN: TN0296; TX: T104704185; USEPA: GA00006; VT: VT-87052; VA: 00302; WA; WV DEP: 094; WV DHHR: 9950 C; WI DNR: 999819810; WY/EPAR8: 8TMS-Q

TestAmerica Laboratories, Inc.

TestAmerica Savannah 5102 LaRoche Avenue, Savannah, GA 31404

Tel (912) 354-7858 Fax (912) 352-0165 www.testamericainc.com

Page 1 of 102

mailto:[email protected]

http://www.testamericainc.com

METHOD SUMMARY

Client: ARCADIS U.S., Inc.

Description

Matrix Water

Lab Location Method

Job Number: 680-52310-1

Preparation Method

Volatile Organic Compounds (GC/MS)

Purge and Trap

TAL SAV

TAL SAV

SW846 8260B

SW846 5030B

Lab References:

TAL SAV = TestAmerica Savannah

Method References:

SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its

Updates.

TestAmerica Savannah

Page 2 of 102

METHOD / ANALYST SUMMARY

Client: ARCADIS U.S., Inc. Job Number: 680-52310-1

Method Analyst Analyst ID

SW846 8260B Bearden, Robert RB

SW846 8260B Lanier, Carolyn CL


Page 3 of 102

SAMPLE SUMMARY


Date/Time Date/Time

Lab Sample ID Client Sample ID Client Matrix Sampled Received

680-52310-1 MW-25 Water 11/02/2009 1350 11/05/2009 1013

680-52310-2 MW-23 Water 11/02/2009 1500 11/05/2009 1013

680-52310-3 MW-11 Water 11/02/2009 1550 11/05/2009 1013

680-52310-4 MW-26 Water 11/02/2009 1330 11/05/2009 1013

680-52310-5 MW-17 Water 11/02/2009 1745 11/05/2009 1013

680-52310-6 SRW-1 Water 11/03/2009 0845 11/05/2009 1013

680-52310-7 SRW-2 Water 11/03/2009 0850 11/05/2009 1013

680-52310-8 SRW-3 Water 11/03/2009 0855 11/05/2009 1013

680-52310-9 DRW-1 Water 11/03/2009 0900 11/05/2009 1013

680-52310-10 DRW-2 Water 11/03/2009 0905 11/05/2009 1013

680-52310-11 DRW-3 Water 11/03/2009 0910 11/05/2009 1013

680-52310-12 MW-4 Water 11/03/2009 0957 11/05/2009 1013

680-52310-13 MW-36 Water 11/03/2009 1005 11/05/2009 1013

680-52310-14 SW-6 Water 11/03/2009 1010 11/05/2009 1013

680-52310-15 MW-30 Water 11/03/2009 1107 11/05/2009 1013

680-52310-16 MW-31 Water 11/03/2009 1114 11/05/2009 1013

680-52310-17 SW-5 Water 11/03/2009 1122 11/05/2009 1013

680-52310-18 MW-5 Water 11/03/2009 1150 11/05/2009 1013

680-52310-19 SW-2 Water 11/03/2009 1240 11/05/2009 1013

680-52310-20 MW-12 Water 11/03/2009 1536 11/05/2009 1013

680-52310-21 MW-22 Water 11/03/2009 1601 11/05/2009 1013

680-52310-22 MW-24 Water 11/03/2009 1647 11/05/2009 1013

680-52310-23 VER-1 Water 11/03/2009 1640 11/05/2009 1013

680-52310-24 VER-2 Water 11/03/2009 1645 11/05/2009 1013

680-52310-25 VER-3 Water 11/03/2009 1650 11/05/2009 1013

680-52310-26 VER-4 Water 11/03/2009 1655 11/05/2009 1013

680-52310-27 MW-3 Water 11/04/2009 1125 11/05/2009 1013

680-52310-28 MW-2 Water 11/04/2009 1016 11/05/2009 1013

680-52310-29 MW-29 Water 11/04/2009 1137 11/05/2009 1013

680-52310-30 MW-28 Water 11/04/2009 1145 11/05/2009 1013

680-52310-31TB trip blank Water 11/04/2009 0000 11/05/2009 1013


Page 4 of 102

Analytical Data


Client Sample ID: MW-25

Lab Sample ID: 680-52310-1 Date Sampled: 11/02/2009 1350

Client Matrix: Water Date Received: 11/05/2009 1013

8260B Volatile Organic Compounds (GC/MS)

Method: 8260B Analysis Batch: 680-153299 Instrument ID: MSO2

Preparation: 5030B Lab File ID: o2810.d

Dilution: 1.0 Initial Weight/Volume: 5 mL

Date Analyzed: 11/12/2009 2036 Final Weight/Volume: 5 mL

Date Prepared: 11/12/2009 2036

Analyte Result (ug/L) Qualifier RL

1,1,1,2-Tetrachloroethane 1.0 U 1.0

1,1,1-Trichloroethane 1.0 U 1.0



1,1-Dichloroethane 1.0 U 1.0

1,1-Dichloroethene 1.0 U 1.0

1,1-Dichloropropene 1.0 U 1.0

1,2,3-Trichlorobenzene 1.0 U 1.0

1,2,3-Trichloropropane 1.0 U 1.0


1,2,4-Trimethylbenzene 1.0 U 1.0

1,2-Dibromo-3-Chloropropane 1.0 U 1.0

1,2-Dibromoethane 1.0 U 1.0

1,2-Dichlorobenzene 1.0 U 1.0


1,2-Dichloroethene, Total 2.0 U 2.0

1,2-Dichloropropane 1.0 U 1.0






2-Butanone 10 U 10

2-Chlorotoluene 1.0 U 1.0

2-Hexanone 10 U 10


4-Methyl-2-pentanone 10 U 10

Acetone 25 U 25

Benzene 1.0 U 1.0

Bromobenzene 1.0 U 1.0

Bromochloromethane 1.0 U 1.0

Bromodichloromethane 1.0 U 1.0

Bromoform 1.0 U 1.0

Bromomethane 1.0 U 1.0

Carbon disulfide 2.0 U * 2.0

Carbon tetrachloride 1.0 U 1.0

Chlorobenzene 1.0 U 1.0

Chloroethane 1.0 U 1.0

Chloroform 1.0 U 1.0

Chloromethane 1.0 U 1.0

cis-1,2-Dichloroethene 1.0 U 1.0

cis-1,3-Dichloropropene 1.0 U 1.0

Dibromochloromethane 1.0 U 1.0

Dibromomethane 1.0 U 1.0

Dichlorodifluoromethane 1.0 U 1.0

Ethyl ether 10 U 10

TestAmerica Savannah Page 5 of 102

Analytical Data












Ethylbenzene 1.0 U 1.0

Hexachlorobutadiene 1.0 U 1.0

Isopropylbenzene 1.0 U 1.0

Methyl tert-butyl ether 10 U 10

Methylene Chloride 5.0 U 5.0

m-Xylene & p-Xylene 2.0 U 2.0

Naphthalene 5.0 U 5.0

n-Butylbenzene 1.0 U 1.0

N-Propylbenzene 1.0 U 1.0

o-Xylene 1.0 U 1.0

p-Isopropyltoluene 1.0 U 1.0

sec-Butylbenzene 1.0 U 1.0

Styrene 1.0 U 1.0

tert-Butylbenzene 1.0 U 1.0

Tetrachloroethene 1.0 U 1.0

Toluene 1.0 U 1.0

trans-1,2-Dichloroethene 1.0 U 1.0

trans-1,3-Dichloropropene 1.0 U 1.0

Trichloroethene 1.0 U 1.0

Trichlorofluoromethane 1.0 U 1.0

Vinyl acetate 2.0 U 2.0

Vinyl chloride 1.0 U 1.0

Xylenes, Total 2.0 U 2.0

Surrogate %Rec Qualifier Acceptance Limits

4-Bromofluorobenzene 100 75 - 120

Dibromofluoromethane 96 75 - 121

Toluene-d8 (Surr) 104 75 - 120


Analytical Data


































2-Butanone 10 U 10


2-Hexanone 10 U 10



Acetone 25 U 25

Benzene 1.0 U 1.0




Bromoform 1.0 U 1.0













Ethyl ether 10 U 10


Analytical Data





















o-Xylene 1.0 U 1.0



Styrene 1.0 U 1.0



Toluene 1.0 U 1.0













Analytical Data


























1,2-Dichloroethane 8.3 1.0








2-Butanone 10 U 10


2-Hexanone 10 U 10



Acetone 25 U 25

Benzene 1.0 U 1.0




Bromoform 1.0 U 1.0




Chlorobenzene 1.5 1.0


Chloroform 1.9 1.0







Ethyl ether 320 E 10


Analytical Data





















o-Xylene 1.0 U 1.0



Styrene 1.0 U 1.0



Toluene 1.0 U 1.0



Trichloroethene 1.9 1.0

Trichlorofluoromethane 1.3 1.0


Vinyl chloride 1.4 1.0







Analytical Data









Date Analyzed: 11/13/2009 1324 Run Type: DL Final Weight/Volume: 5 mL

















1,2-Dichloroethane 7.3 D 5.0

1,2-Dichloroethene, Total 10 U 10







2-Butanone 50 U 50


2-Hexanone 50 U 50



Acetone 120 U 120

Benzene 5.0 U 5.0




Bromoform 5.0 U 5.0


Carbon disulfide 10 U * 10











Ethyl ether 290 D 50


Analytical Data
















Methylene Chloride 25 U 25

m-Xylene & p-Xylene 10 U 10

Naphthalene 25 U 25



o-Xylene 5.0 U 5.0



Styrene 5.0 U 5.0



Toluene 5.0 U 5.0





Vinyl acetate 10 U 10


Xylenes, Total 10 U 10






Analytical Data


































2-Butanone 10 U 10


2-Hexanone 10 U 10



Acetone 25 U 25

Benzene 1.0 U 1.0




Bromoform 1.0 U 1.0













Ethyl ether 10 U 10


Analytical Data





















o-Xylene 1.0 U 1.0



Styrene 1.0 U 1.0



Toluene 1.0 U 1.0













Analytical Data



























1,2-Dichloroethene, Total 6.2 2.0





1,4-Dichlorobenzene 3.3 1.0


2-Butanone 10 U 10


2-Hexanone 10 U 10



Acetone 25 U 25

Benzene 1.3 1.0




Bromoform 1.0 U 1.0








cis-1,2-Dichloroethene 5.9 1.0





Ethyl ether 37 10


Analytical Data





















o-Xylene 1.0 U 1.0



Styrene 1.0 U 1.0



Toluene 1.0 U 1.0






Vinyl chloride 4.6 1.0







Analytical Data


Client Sample ID: SRW-1






























1,4-Dichlorobenzene 2.0 1.0


2-Butanone 10 U 10


2-Hexanone 10 U 10



Acetone 25 U 25

Benzene 1.0 U 1.0




Bromoform 1.0 U 1.0













Ethyl ether 31 10


Analytical Data





















o-Xylene 1.0 U 1.0



Styrene 1.0 U 1.0



Toluene 1.0 U 1.0













Analytical Data








Dilution: 10 Initial Weight/Volume: 5 mL




1,1,1,2-Tetrachloroethane 10 U 10

1,1,1-Trichloroethane 10 U 10



1,1-Dichloroethane 10 U 10

1,1-Dichloroethene 10 U 10

1,1-Dichloropropene 10 U 10

1,2,3-Trichlorobenzene 10 U 10

1,2,3-Trichloropropane 10 U 10


1,2,4-Trimethylbenzene 10 U 10

1,2-Dibromo-3-Chloropropane 10 U 10

1,2-Dibromoethane 10 U 10

1,2-Dichlorobenzene 10 U 10

1,2-Dichloroethane 55 10


1,2-Dichloropropane 10 U 10






2-Butanone 100 U 100

2-Chlorotoluene 10 U 10

2-Hexanone 100 U 100



Acetone 250 U 250

Benzene 10 U 10

Bromobenzene 10 U 10

Bromochloromethane 10 U 10

Bromodichloromethane 10 U 10

Bromoform 10 U 10

Bromomethane 10 U 10


Carbon tetrachloride 10 U 10

Chlorobenzene 10 U 10

Chloroethane 10 U 10

Chloroform 10 U 10

Chloromethane 10 U 10

cis-1,2-Dichloroethene 10 U 10

cis-1,3-Dichloropropene 10 U 10

Dibromochloromethane 10 U 10

Dibromomethane 10 U 10

Dichlorodifluoromethane 10 U 10



Analytical Data












Ethylbenzene 10 U 10

Hexachlorobutadiene 10 U 10

Isopropylbenzene 10 U 10




Naphthalene 50 U 50

n-Butylbenzene 10 U 10

N-Propylbenzene 10 U 10

o-Xylene 10 U 10

p-Isopropyltoluene 10 U 10

sec-Butylbenzene 10 U 10

Styrene 10 U 10

tert-Butylbenzene 10 U 10

Tetrachloroethene 10 U 10

Toluene 10 U 10

trans-1,2-Dichloroethene 10 U 10

trans-1,3-Dichloropropene 10 U 10

Trichloroethene 10 U 10

Trichlorofluoromethane 10 U 10


Vinyl chloride 10 U 10







Analytical Data






Method: 8260B Analysis Batch: 680-153416 Instrument ID: MSO




















1,2-Dichloroethane 79 D 20













Acetone 500 U 500

Benzene 20 U 20




Bromoform 20 U 20






Chloroform 20 U 20









Analytical Data


















Naphthalene 100 U 100



o-Xylene 20 U 20



Styrene 20 U 20



Toluene 20 U 20













Analytical Data







































Acetone 250 U 250

Benzene 10 U 10




Bromoform 10 U 10






Chloroform 10 U 10







Ethyl ether 860 100


Analytical Data


















Naphthalene 50 U 50



o-Xylene 10 U 10



Styrene 10 U 10



Toluene 10 U 10













Analytical Data


Client Sample ID: DRW-1





































Acetone 1200 U 1200

Benzene 50 U 50




Bromoform 50 U 50






Chloroform 50 U 50









Analytical Data





















o-Xylene 50 U 50



Styrene 50 U 50



Toluene 50 U 50













Analytical Data







































Acetone 2500 U 2500

Benzene 100 U 100




Bromoform 100 U 100






Chloroform 100 U 100









Analytical Data





















o-Xylene 100 U 100



Styrene 100 U 100



Toluene 100 U 100













Analytical Data


























1,2-Dichloroethane 1.7 1.0








2-Butanone 10 U 10


2-Hexanone 10 U 10



Acetone 25 U 25

Benzene 1.0 U 1.0




Bromoform 1.0 U 1.0













Ethyl ether 59 10


Analytical Data





















o-Xylene 1.0 U 1.0



Styrene 1.0 U 1.0



Toluene 1.0 U 1.0













Analytical Data


































2-Butanone 10 U 10


2-Hexanone 10 U 10



Acetone 25 U 25

Benzene 1.0 U 1.0




Bromoform 1.0 U 1.0













Ethyl ether 18 10


Analytical Data





















o-Xylene 1.0 U 1.0



Styrene 1.0 U 1.0



Toluene 1.0 U 1.0













Analytical Data


































2-Butanone 10 U 10


2-Hexanone 10 U 10



Acetone 25 U 25

Benzene 1.0 U 1.0




Bromoform 1.0 U 1.0













Ethyl ether 10 U 10


Analytical Data





















o-Xylene 1.0 U 1.0



Styrene 1.0 U 1.0



Toluene 1.0 U 1.0













Analytical Data


































2-Butanone 10 U 10


2-Hexanone 10 U 10



Acetone 25 U 25

Benzene 1.0 U 1.0




Bromoform 1.0 U 1.0













Ethyl ether 10 U 10


Analytical Data















Methyl tert-butyl ether 120 10






o-Xylene 1.0 U 1.0



Styrene 1.0 U 1.0



Toluene 1.0 U 1.0













Analytical Data


Client Sample ID: SW-6
































2-Butanone 10 U 10


2-Hexanone 10 U 10



Acetone 25 U 25

Benzene 1.0 U 1.0




Bromoform 1.0 U 1.0













Ethyl ether 10 U 10


Analytical Data





















o-Xylene 1.0 U 1.0



Styrene 1.0 U 1.0



Toluene 1.0 U 1.0













Analytical Data


































2-Butanone 10 U 10


2-Hexanone 10 U 10



Acetone 25 U 25

Benzene 1.0 U 1.0




Bromoform 1.0 U 1.0













Ethyl ether 10 U 10


Analytical Data





















o-Xylene 1.0 U 1.0



Styrene 1.0 U 1.0



Toluene 1.0 U 1.0













Analytical Data


































2-Butanone 10 U 10


2-Hexanone 10 U 10



Acetone 25 U 25

Benzene 1.0 U 1.0




Bromoform 1.0 U 1.0













Ethyl ether 14 10
