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Home My WebLink AboutCenco_Annual Monitoring Reports (December 2001 and 2002)-OCRDECEMBER 2002 ANNUAL GROUNDWATER MONITORING REPORT HONBARRIER INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA GROUNDWATER INCIDENT NO.: 8440 Prepared For: Honbarrier, Inc. Post Office Box 7072 High Point, North Carolina 27263 Prepared by: Mid-Atlantic Associates, Inc. Post Office Box 669004 Charlotte, North Carolina 28266-9004 January 24, 2003 MP?;~J:1t4NTJ.~ Environmental Solutions ID-ATLANTIC A S S 0 C I AT E S, P. /\. E111·iro11mc11tal Sol11tin111 January 24, 2003 /'u /:.. .. , : I: Mr. Andrew H. Pitner North Carolina Department of Environment And Natural Resources Division of Water Quality Mooresville Regional Office 91 9 North Main Street Mooresville, North Carolina 28115 Subject: DECEMBER 2002 ANNUAL GROUNDWATER MONffORING REPORT HONBARRIER, INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA GROUNDWATER INCIDENT NO.: 8440 MID-ATLANTIC JOB NO.: C262 Dear Mr. Pitner: On behalf of Honbarrier, Inc., Mid-Atlantic Associates, Inc. is pleased to submit this December 2002 Annual Groundwater Monitoring Report for the Honbarrier, Inc. facility located in Charlotte, North Carolina. If there are any questions or comments concerning this report, please contact us at (704) 398-9112. Sincerely, MID-ATLANTIC ASSOCIATES, INC. ~~~~~ ··-Douglas R. Rowles hrrL Environmental Scientist Pc: Mr. Max Towry -Honbarrier, Inc., High Point, NC ID-ATLANTIC A S S 0 C I AT E S, P.A. F 11 1·iro11 111 1• 111 a I So I u r ions I ,,111 I DECEMBER 2002 ANNUAL GROUNDWATER MONITORING REPORT HONBARRIER, INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROUNA GROUNDWATER INCIDENT NO.: 8440 January 24, 2003 Mid-Atlantic Job No.: C262 Prepared For: Prepared By: Honbarrier, Inc. MID-ATLANTIC ASSOCIATES, INC. Post Office Box 7027 High Point, North Carolina 27263 D~;t:w~~~ " , Environmental Scientis~ ' · ·, : · . . TABLE OF CONTENTS 1 .0 INTRODUCTION ....................................................................................... 1 2.0 SITE HISTORY .......................................................................................... 1 3.0 FIELD ACTIVITIES ..................................................................................... 2 4.0 GROUNDWATER FLOW ............................................................................ 2 5.0 ANALYTICAL RESUl TS ............................................................................ 2 6.0 SUMMARY AND CONCLUSIONS ................................................................ 3 DRAWINGS Drawing 1.1 Drawing 2.1 Drawing 5.1 TABLES Table 3.1 Table 3.2 Table 5.1 APPENDICES Appendix A Appendix B Appendix C Topographic Site Map Estimated Shallow Groundwater Flow Map Total VOC Concentration Map Physical Characteristics of Existing Monitoring Wells Summary of Groundwater Field Parameters Summary of Chemical Constituents Detected in Groundwater May 7, 2002 NCDENR Letter Laboratory Report and Chain-of-Custody Record Historical Groundwater Sample Results and Site Map l\1P?:~!l~7N!7Y Enrironm,·n:al Sr-if;iti.J•:'< 1.0 INTRODUCTION Mid-Atlantic Associates, Inc. (Mid-Atlantic) is pleased to present this report summarizing the December 2002 annual groundwater sampling activities conducted at the Honbarrier, Inc. (Honbarrier) facility located at 600 Melynda Road in Charlotte, North Carolina (Drawing 1.1). Groundwater sampling was conducted according to the North Carolina Department of Environment and Natural Resources (NCDENR), Division of Water Quality (DWQ) correspondence dated May 7, 2002 and titled, Modification of Sampling Plan. As per the revised sampling plan, monitoring wells MW-2, MW-13, and MW-19 will be sampled on an annual basis and the groundwater samples will be analyzed for volatile organic compounds {VOCs) according to EPA Method 601. In addition, monitoring well MW-7 will be sampled on an annual basis and the groundwater sample will be analyzed for VOCs according to EPA Methods 601 and 602. A copy of the May 7, 2002 NCDENR letter is contained in Appendix A. 2.0 SITE HISTORY Honbarrier provided bulk-hauling services to a variety of industries. The entire site consists of 30 acres, approximately six acres of which were actively used for terminal operations. The terminal operations began in 1969, under the name Central Transport Incorporated. The site had been farmed prior to its purchase. The facility consisted of a terminal office, maintenance garage, truck wash bays, a boiler house for steam production, a wastewater pretreatment system, former waste treatment lagoons, and parking facilities for empty tank trucks. The site included a facility for cleaning the inside of empty tank trucks following delivery of bulk chemicals. Rinse waters that were generated from these washing operations were collected and treated prior to discharge to the Charlotte Mecklenburg Utility District treatment plant in accordance with permit number 0188. Historically, two on-site impoundments were used to treat tank truck rinse waters. During the 1970s and 1980s, site operations resulted in the release of contaminants into the soil and groundwater. Use of the impoundments was terminated in 1985 when a new pretreatment system commenced operation. Closure of the impoundments began in 1991. The impoundments closed as a landfill in 1992 and are capped to meet Resource Conservation and Recovery Act requirements. Drawing 2.1 shows the location of site surface features, the regulated unit (closed landfill), and seven site monitoring wells installed during the contamination assessment process. Monitoring wells MW-9, MW-10, MW-11, MW-12, MW-14, MW-15, and MW-17 were abandoned on May 15, 1999 in compliance with NCDENR's Recommended Site Activities, and are no longer represented on the site map. Terminal operations at the site ceased in approximately 1 995 and the property was vacated. Based on field observations made during the December 2002 sampling event, the subject site is currently leased and utilized as a truck storage terminal. Fr:\ i.'1.>rt.?:~·nrt<l Solution!\ December 2002 Annual Groundwater Monitoring Report Honbarrier, Inc. Facility Charlotte, North Carolina 3.0 FIELD ACTIVITIES January 24, 2003 Page 2 Mid-Atlantic mobilized to the site on December 30, 2002 to conduct the groundwater sampling activities. The four monitoring wells sampled during the annual event included MW-2, MW-7, MW-13, and MW-19 (Drawing 2.1 ). Mid-Atlantic noted that monitoring well MW-6 had been destroyed by apparent mowing activities. Prior to purging the wells of at least three volumes of water using new disposable bailers, Mid- Atlantic measured the depth to water in each well using a decontaminated electric water level indicator. A new pair of protective, non-reactive gloves was donned at each well prior to collecting water level measurements. The measured depths were subtracted from the casing elevations to determine the groundwater elevation relative to Mean Sea Level. The physical characteristics of the site monitoring wells and groundwater elevation data are summarized in Table 3.1. After purging the wells, water samples were collected from the same bailers used to purge each well and decanted into laboratory-supplied containers. The containers were placed into an ice- filled cooler and transported under chain-of-custody to Test America, Inc. of Charlotte, North Carolina. At the laboratory, the four groundwater samples were analyzed for VOCs according to EPA Method 601. The groundwater sample collected from monitoring well MW-7 was also analyzed for VOCs according to EPA Method 602. In addition, groundwater field measurements were collected for pH, electrical conductivity, and temperature (Table 3.2). 4.0 GROUNDWATER FLOW Groundwater flow direction in the surficial aquifer was estimated based on water level data obtained from the monitoring wells on December 30, 2002 (Drawing 2.1 ). Interpretation of the relative water table elevations suggests that groundwater flows generally to the south across the site. This flow direction is consistent with previously interpreted flow determinations. 5.0 ANALYTICAL RESULTS The laboratory analytical results for the groundwater samples collected on December 30, 2002 are contained in Appendix B and summarized in Table 5.1. As summarized, concentrations of cis-1,2-dichloroethene (cis-1,2-DCE) (99.8 micrograms per liter {~1g/L)), trichloroethene (TCE) (4.4 µg/L), and vinyl chloride (21.3 µg/L) were detected in the groundwater sample collected from MW-2 which exceeded their respective North Carolina Groundwater Quality Standards (NCGWQS}. Two additional VOCs were detected in the groundwater sample collected from MW-2 in concentrations below their respective NCGWQS. M ID-ATLANTIC .\ S S 0 Cl .\TE S. P. A, En;·ironn:e11ftJl So!urinn., December 2002 Annual Groundwater Monitoring Report Honbarrier, Inc. Facility Charlotte, North Carolina January 24, 2003 Page 3 The groundwater sample collected from monitoring well MW-7 revealed the presence of benzene, chlorobenzene, and vinyl chloride in concentrations of 56 ~19/L, 246~tg/L, and 55.8 ~1g/L, respectively, which exceeded their respective NeGWQS. Six additional voes were detected in the groundwater sample collected from MW-7 in concentrations below their respective NeGWQS. Vinyl chloride was detected in the groundwater samples collected from monitoring wells MW-13 (8.4 µg/L) and MW-19 (2.8 ~tg/L) in concentrations that exceeded their respective NeGWQS. Four additional voes were detected in the groundwater sample collected from MV.J-13 in concentrations below their respective NeGWQS. Two additional VOes were detected in the groundwater sample collected from MW-19 in concentrations below their respective NeGWOS. A total voe concentration map, showing total detectable voes, is provided as Drawing 5.1. Historical groundwater sample results and a site map showing existing and previously abandoned monitoring wells is presented in Appendix e. 6.0 SUMMARY AND CONCLUSIONS Based on the field and laboratory analytical results, Mid-Atlantic offers the following conclusions and recommendations. • Shallow groundwater flow is directed toward the south across the site. • The water sample collected from monitoring well MW-2 exhibited concentrations of cis-1,2-DeE, TeE, and vinyl chloride which exceeded their respective NeGWQS. • The groundwater sample collected from monitoring well MW-7 revealed the presence of benzene, chlorobenzene, and vinyl chloride in concentrations that exceeded their respective NeGWOS. • Vinyl chloride was detected in the groundwater samples collected from monitoring wells MW-13 and MW-19 in concentrations that exceeded their respective NeGWQS. • Monitoring well MW-6 has been destroyed by apparent mowing act1v1t1es. This well was utilized as a background point and had not exhibited groundwater contamination. • Total dissolved voes detected in the groundwater samples collected from the four monitoring wells in December 2002 have decreased by 306 µg/L since the sampling event conducted in December 2001. This represents a decrease of approximately 32 percent. M ID-ATLANTIC <:: ' C"'. " 'f' ~ ,-. :l._:c__" 0 \ ! ,, , I:. :, . P. A. F 11ri1 .111 m ,·n rd l Sol u r ion.\ DRAWINGS TABLES TABLE 3.1 PHYSICAL CHARACTERISTICS OF EXISTING MONITORING WELLS HONBARRIER, !NC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA MID-ATLANTIC PROJECT NO.: C262 WELL SCREEN GROUND TOC DEPTH TO GROUNDWATER WELL ID DEPTH (ft INTERVAL SURFACE ELEVATION GROUNDWATER ELEVATION ELEVATION BLS) (ft-BLS) lft-MSU (ft-MSL) {ft-TOC)* (ft-MSL) MW-2 24 14-24 769.8 771.59 18.23 753.36 MW-6 35.5 25-35 769.6 772.17 NA NA MW-7 39 29-39 768.7 768.71 17.95 750.76 MW-13 29 19-29 759.5 761.74 13.40 748.34 MW-16 76 66-76 759.7 761.81 NM NM MW-18 130 110-130 768.95 768.81 NM NM MW-19 14 4-14 746.92 746.87 2.45 744.42 NOTES: ft-BLS Feet below land surface ft-MSL Feet above mean sea level TOC Top of casing ft-TOC Feet below top of casing * Measured on December 30, 2002 NA Not applicable; well destroyed NM Not measured; well not included as part of this sampling event; deep well TABLE 3.2 SUMMARY OF GROUNDWATER FIELD PARAMETERS HONBARRIER, INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA MID-ATLANTIC PROJECT NO.: C262 WELL ID FIELD PARAMETERS pH (SU} Temperature (C0 ) EC (µSiem) MW-2 5.81 17.8 784 MW-6 NA NA NA MW-7 6.17 18.4 1,333 MW-13 6.32 16.6 925 MW-16 NM NM NM MW-18 NM NM NM MW-19 5.72 14.8 1 742 NOTES: SU Standard Units co Degrees Celsius EC Electrical Conductivity µSiem Microsiemens per centimeter NA Not applicable; well destroyed NM Not measured; well not included as part of this sampling event Measured on December 30, 2002 TABLE 5.1 SUMMARY OF CHEMICAL CONSTITUENTS DETECTED IN GROUNDWATER HONBARRIER, INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA MID-ATLANTIC PROJECT NO.: C262 CONSTITUENT MONITORING WELL IDENTIFICATION NCGWQS MW-2 MW-7 MW-13 MW-19 Benzene NS 56 NS NS 1 Chlorobenzene ND 246 4.6 ND 50 1,2-Dichlorobenzene ND 2.9 ND ND 620 1,3-Dichlorobenzene ND 5.1 ND ND 620 1,4-Dichlorobenzene ND 33.2 1.8 ND 75 1, 1-Dichloroethane 16.4 ND 2 4.3 700 cis-1,2-Dichloroethene 99.8 18.4 43.1 6.9 70 trans-1,2-Dichloroethene 1.2 1 ND ND 70 Ethylbenzene NS 27 NS NS 29 ITrichloroethene 4.4 ND ND ND 2.8 Vinyl Chloride 21.3 55.8 8.4 2.8 0.015 Xylenes NS ND NS NS 530 Total voes 143.1 445.4 59.9 14.0 NA NOTES: IAll concentrations in micrograms per liter (µg/L) or parts per billion NS Not sampled for this constituent ND Not detected in a concentration at or above the laboratory Practical Quantitation Limits NA Not applicable NCGWQS North Carolina Groundwater Quality Standard BOLD Exceeds the NCGWQS Samples collected on December 30, 2002 APPENDIX A MAY 7, 2002 NCDENR LETTER APPENDIX B LABORATORY REPORT AND CHAIN-OF-CUSTODY RECORD • Te mer a INCORPORATED l/ 7 /03 MID ATLANTIC ASSOCIATION 2113 JOHN REUSCHER P.O. BOX 669004 CHARLOTTE, NC 28266 This report includes the analytical certificates of analysis for all samples listed below. These samples relate to your project C262 HONBARRIER,INC .. The Laboratory Project number is 315051. An executed copy of the chain of custody, the project quality control data, and the sample receipt form are also included as an addendum to this report. Sample Identification MW-2 MW-7 MW-13 MW-19 Lab Number 02-A213680 02-A213681 02-A2l3682 02-A213683 Page l Collection Date 12/30/02 12/30/02 12/30/02 12/30/02 These results relate only to the items tested. This report shall not be reproduced except in full and with permission of the laboratory. Report Approved By: Paul E. Lane, Jr., Lab Director Michael H. Dunn, M.S., Technical Director Johnny A. Mitchell, Dir. Technical Serv. Eric S. Smith, Assistant Technical Director Roxanne L. Connor, Technical Services Date: 1/ 7/03 Gail A. Lage, Technical Serv. Glenn L. Norton, Technical Serv. Kelly s. Comstock, Technical Serv. Pamela A. Langford, Technical Serv. Laboratory Certification Number: 387 2960 FOSTER CREHillTO:\ DRIVE I N,\Sll\'ILLE, TN 37204 I 615-726-0177 I f'.\.\: 615-726-0954 I 800-765-0980 • Te mer1ca PROJECT QUALITY CONTROL DATA Project Number: C262 Project Name: HONBARRIER,INC. Page: 1 Laboratory Receipt Date: 12/31/02 Matrix Spike Recovery INCORPORATED Note: If Blank is referenced as the sample spiked, insufficient volume was received for MS/MSD analysis for that method and the method requirements for MS/MSD analysis could not be met. Analyte **UST ANALYSIS** Benzene Toluene Ethylbenzene Xylenes, total units mg/l mg/l mg/l mg/l orig. Val. l.19 l.60 l.63 0.367 BTEX/GRO surr., a,a,a-TFT % Recovery Matrix Spike Recovery Note: If Blank is referenced as the sample spiked, MS Val 2.19 2.58 2.57 0 .458 insufficient and the method requirements for MS/MSD analysis could not Analyte units Orig. Val. MS Val ---------------------------------- **VOA PARAMETERS** Chlorobenzene mg/l < 0.00100 0.0202 l,2-Dichlorobenzene mg/l < 0.00100 0.0188 l,3-Dichlorobenzene mg/l < 0.00100 0.0192 1,4-Dichlorobenzene mg/l < 0.00100 0.0195 Bromodichloromethane mg/l < 0.00100 0.0210 Bromoform mg/l < 0.00100 0.0200 Bromomethane mg/l < 0.00100 0.0101 Carbon tetrachloride mg/l < 0.00100 0. 0178 Chloroethane mg/l < 0.00100 0.0142 2-Chloroethylvinylether mg/l < 0.00100 0.00150 Chloroform mg/l < 0.00100 0.0160 Chloromethane mg/l < 0.00100 0.0191 Dibromochloromethane mg/l < 0.00100 0.0208 Ethylene Dibromide mg/l < 0.00100 0.0208 Project QC continued Spike Cone Recovery Target Range Q.C. Batch Spike Sample l.00 l.00 l. 00 2.00 100 98 94 5# 107 39. -150. 46. -148. 32. -160. 70. -123. 69 -132 6462 6462 6462 6462 6462 02-A2l37l5 02-A2l37l5 02-A2l37l5 02a2l37l5 volume was received for MS/MSD analysis for that method be met. Spike Cone Recovery Target Range Q.C. Batch Spike Sample ----------------------------------------------------- 0.0200 101 55. -135. 8662 02-A2l3942 0.0200 94 37. -154. 8662 02-A2l3942 0.0200 96 50. -141. 8662 02-A2l3942 0.0200 98 42. -143. 8662 02-A213942 0.0200 105 42. -172. 8662 02-A213942 0.0200 100 13. -159. 8662 02-A2l3942 0.0200 50 l. -144. 8662 02-A2l3942 0.0200 89 43. -143. 8662 02-A2l3942 0.0200 7l 46. -137. 8662 02-A213942 0.0200 8# 14. -186. 8662 02-A2l3942 0.0200 80 49. -133. 8662 02-A213942 0.0200 96 l. -193. 8662 02-A213942 0. 0200 104 24. -191. 8662 02-A213942 0.0200 104 73. -127. 8662 02-A213942 2960 FOSTER CREH;HTO\ DRIVE I NASll\'ILl.E, TN 37204 I 615-726-0177 I F:\.\: 615-726-0H54 I 800-765-0HBO Te QUALITY CONTROL DATA Number: C262 PROJECT Project Project Name: HONBARRIER,INC. Page: 2 Laboratory Receipt Date: 12/31/02 Matrix Spike Recovery • mer1ca INCORPORATED Note: If Blank is referenced as the sample spiked, insufficient volume was received for MS/MSD analysis for that method and the method requirements for MS/MSD analysis could not be met. Analyte units Orig. Val. MS Val Spike Cone Recovery Target Range Q.C. Batch Spike Sample Vinyl chloride mg/l Dichlorodifluoromethane mg/l 1,1-Dichloroethane mg/l 1,2-Dichloroethane mg/l l,l-Dichloroethene mg/l cis-1,2-Dichloroethene mg/l trans-1,2-Dichloroethene mg/l 1,2-Dichloropropane mg/l cis-1,3-Dichloropropene mg/l trans-1,3-Dichloropropene mg/l Methylene chloride mg/l l,l,2,2-Tetrachloroethane mg/l Tetrachloroethene mg/l 1,1,l-Trichloroethane mg/l l,l,2-Trichloroethane mg/l Trichloroethene mg/l Trichlorofluoromethane mg/l < 0.00100 < 0.00100 < 0.00100 < 0.00100 < 0.00100 < 0.00100 < 0.00100 < 0.00100 < 0.00100 < 0.00100 < 0.00500 < 0.00100 < 0.00100 < 0.00100 < 0.00100 < 0.00100 < 0.00100 0.0196 0.0154 0.0176 0.0190 0.0163 0.0189 0.0156 0.0201 0.0193 0.0197 0.0192 0.0204 0.0205 0.0170 0.0199 0.0190 0.0180 Laboratory Control Data Analyte **UST PARAMETERS** Benzene Toluene Ethylbenzene Xylenes, total Project QC continued . . . units mg/l mg/l mg/l mg/l Known val. Analyzed val 0.100 0.100 0.100 0.200 0.0956 0.0944 0.0936 0.184 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 0.0200 98 77 88 95 82 94 78 100 96 98 96 102 102 85 100 95 90 28. -163. 43. -170. 47. -132. 51. -147. 28. -167. 75. -123. 38. -155. 44. -156. 22. -178. 22. -178. 25. -162. 8. -184. 26. -162. 41. -138. 39. -136. 35. -146. 21. -156. % Recovery Target Range Q.C. Batch 96 94 94 92 39 -150 46 -148 32 -160 74 -119 6462 6462 6462 6462 8662 8662 8662 8662 8662 8662 8662 8662 8662 8662 8662 8662 8662 8662 8662 8662 8662 2960 FOSTER CREl(;f!TO:\ DRIVE I N:\Sll\ ILl.E,TN 37204 I 615-726-0177 I F'\X: 615-726-0954 I 800-765-0980 02-A213942 02-A213942 02-A213942 02-A213942 02-A213942 02-A213942 02-A213942 02-A213942 02-A213942 02-A213942 02-A213942 02-A213942 02-A213942 02-A213942 02-A213942 02-A213942 02-A213942 Te QUALITY CONTROL DATA Number: C262 PROJECT Project Project Name: HONBARRIER,INC. Page: 3 Laboratory Receipt Date: 12/31/02 BTEX/GRO Surr., a,a,a-TFT % Recovery Laboratory Control Data Analyte units Known Val. ------------------------- **VOA PARAMETERS** Chlorobenzene mg/l 0.0200 Chlorobenzene mg/1 0.0500 l,2-Dichlorobenzene mg/1 0.0200 l,3-Dichlorobenzene mg/1 0.0200 l,4-Dichlorobenzene mg/1 0.0200 Bromodichloromethane mg/1 0.0200 Bromof orm mg/1 0.0200 Bromomethane mg/1 0.0200 Carbon tetrachloride mg/l 0.0200 Chloroethane mg/l 0.0200 2-Chloroethylvinylether mg/l 0.0200 Chloroform mg/l 0.0200 Chloromethane mg/l 0.0200 Dibromochloromethane mg/l 0.0200 Ethylene Dibromide mg/l 0.0200 Vinyl chloride mg/l 0.0200 Dichlorodifluoromethane mg/l 0.0200 l,1-Dichloroethane mg/l 0.0200 l,2-Dichloroethane mg/l 0.0200 l,l-Dichloroethene mg/l 0.0200 cis-1,2-Dichloroethene mg/l 0.0200 trans-1,2-Dichloroethene mg/1 0.0200 1,2-Dichloropropane mg/1 0.0200 cis-1,3-Dichloropropene mg/l 0.0200 trans-l,3-Dichloropropene mg/1 0.0200 Methylene chloride mg/1 0.0200 1,1,2,2-Tetrachloroethane mg/1 0.0200 Tetrachloroethene mg/l 0.0200 Project QC continued . • mer1ca INCORPORATED 97 69 -132 6462 Analyzed Val % Recovery Target Range Q.C. Batch ------------------------------------------- 0.0181 90 55 -135 8662 0.0542 108 55 -135 282 0.0181 90 37 -154 8662 0.0169 84 50 -141 8662 0.0186 93 42 -143 8662 0.0199 100 42 -172 8662 0.0200 100 13 -159 8662 0.0145 72 l -144 8662 0.0195 98 43 -143 8662 0.0160 80 46 -137 8662 0.0195 98 14 -186 8662 0.0181 90 49 -133 8662 0.0264 132 l -193 8662 0.0200 100 24 -191 8662 0.0202 101 78 -124 8662 0.0226 113 28 -163 8662 0.0413 206 # 61 -170 8662 0.0178 89 47 -132 8662 0.0192 96 51 -147 8662 0. 0172 86 28 -167 8662 0. 0192 96 78 -122 8662 0.0154 77 38 -155 8662 0.0215 108 44 -156 8662 0.0173 86 22 -178 8662 0.0174 87 22 -178 8662 0.0168 84 25 -162 8662 0.0155 78 8 -184 8662 0.0177 88 26 -162 8662 2960 F'osnm CRE1<;11ro'\ DRIVE I NASH\'ILLE,TN 37204 I 615-726-0177 I F' \.\: 615-726-0954 / 800-765-0980 Te QUALITY CONTROL DATA Number: C262 PROJECT Project Project Name: HONBARRIER,INC. Page: 4 Laboratory Receipt Date: 12/31/02 Laboratory Control Data Ill mer1ca INCORPORATED Analyte units Known Val. Analyzed Val % Recovery Target Range Q.C. Batch 1,1,1-Trichloroethane 1,1,2-Trichloroethane Trichloroethene Trichlorofluoromethane Analyte **UST PARAMETERS** Benzene Toluene Ethylbenzene Xylenes, total Analyte **UST PARAMETERS** BTEX/GRO Surr., a,a,a-TFT Analyte **VOA PARAMETERS** Chlorobenzene Project QC continued ----------------------------------------------------- mg/l 0.0200 0.0184 92 41 -138 8662 mg/l 0.0200 0.0192 96 39 -136 8662 mg/l 0.0200 0.0225 112 35 -146 8662 mg/l 0.0200 0.0203 102 21 -156 8662 Blank Data Blank Value units Q.C. Batch Date Analyzed Time Analyzed <: 0.0005 mg/l 6462 1/ 1/03 19:55 < 0.0006 mg/l 6462 1/ 1/03 19:55 < 0.0006 mg/l 6462 1/ 1/03 19:55 < 0.0010 mg/l 6462 1/ 1/03 19:55 Blank Data Blank Value Units Q.C. Batch Date Analyzed Time Analyzed --------------------------------------------------------- 97. % Recovery 6462 l/ l/03 19:55 Blank Data Blank Value Units Q.C. Batch Date Analyzed Time Analyzed .< O. 00100 mg/l 8662 1/ 3/03 19:15 2960 Fosn:R CRE1<:1no:'\ DRIVE I NASH\ILLE.TN 37204 I 615-726-0177 I F\.X: 615-726-0B54 I 800-765-0BBO QUALITY CONTROL DATA Number: C262 PROJECT Project Project Name: HONBARRIER,INC. Page: 5 Laboratory Receipt Date: 12/31/02 Blank Data Analyte Blank Value units ------------------------------------ Chlorobenzene < 0.00100 mg/l 1,2-Dichlorobenzene < 0.00100 mg/l 1,3-Dichlorobenzene < 0.00100 mg/l 1,4-Dichlorobenzene < 0.00100 mg/l Bromodichloromethane < 0.00100 mg/l Bromof orm < 0.00100 mg/l Bromomethane < 0.00100 mg/l Carbon tetrachloride < 0.00100 mg/l Chloroethane < 0.00100 mg/l 2-Chloroethylvinylether < 0.00100 mg/l Chloroform < 0.00100 mg/l Chloromethane < 0.00100 mg/l Dibromochloromethane < 0.00100 mg/l Ethylene Dibromide < 0.00100 mg/l Vinyl chloride < 0.00100 mg/l Dichlorodifluoromethane < 0.00100 mg/l l,l-Dichloroethane < 0.00100 mg/l l,2-Dichloroethane < 0.00100 mg/l 1,1-Dichloroethene < 0.00100 mg/l cis-1,2-Dichloroethene < 0.00100 mg/l trans-1,2-Dichloroethene < 0.00100 mg/l l,2-Dichloropropane < 0.00100 mg/l cis-1,3-Dichloropropene < 0.00100 mg/l trans-1,3-Dichloropropene < 0.00100 mg/l Methylene chloride < 0.00500 mg/l l,l,2,2-Tetrachloroethane < 0.00100 mg/l Tetrachloroethene < 0.00100 mg/l l,l,l-Trichloroethane < 0.00100 mg/l l,l,2-Trichloroethane < 0.00100 mg/l Trichloroethene < 0.00100 mg/l Trichlorofluoromethane < 0.00100 mg/l Project QC continued INCORPORATED Q.C. Batch Analysis Date Analysis Time ------------------------------------ 282 l/ 6/03 18:02 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 8662 l/ 3/03 19:15 29GO Fosn:R CrmH:11ro'\ DtmE I NAs11v11,1.r:,TN 37204 I 615-726-0177 I F\X: 615-726-0954 I 800-765-0980 Te PROJECT QUALITY CONTROL DATA Project Number: C262 Project Name: HONBARRIER,INC. Page: 6 Laboratory Receipt Date: 12/31/02 Hall Surr., 2-chloropropane 102. Hall Surr., chloroprene 89. Hall surr., l-chloro-3-fluorobenzene 94. End of Report for Project 315051 % Rec % Rec % Rec ® mer1ca INCORPORATED 8662 8662 8662 l/ 3/03 l/ 3/03 l/ 3/03 19:15 19:15 19:15 2960 Fosn:R CR1rn;11ro'\ DRIVE I NASll\ILLE,TN 37204 I 615-726-0177 IF\.\: 615-726-0954 / 800-765-0980 APPENDIX C HISTORICAL GROUNDWATER SAMPLE RESULTS AND SITE MAP TABLE S-1 SUMMARY OF voes DETECTED IN GROUNDWATER -MW-2 HON BARRIER, INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA MID-ATLANTIC PROJECT NO.: C262 CONSTITUENT SAMPLE COLLECTION DATE DL 5/8/97 12/19/97 4/28/98 5/18/99 6/29199 12/16199 6/27/00 12/11/00 6/15/01 12/5/01 12/30/02 Benzene NS NS NS ND NS ND ND ND NS ND NAC 10 Chtorobenzene NS NS NS 2 NS ND ND ND NS ND ND 1 2-Chlorotoluene NS NS NS ND NS 17.8 18 ND NS 7 ND 1 1 ,3-Dichlorobenzene NS NS NS ND NS ND ND ND NS ND ND 1 1 ,4-Dichlorobenzene NS NS NS ND NS ND ND ND NS ND ND 1 1 , 1-Dichloroethane NS NS NS 40 NS 35.6 28 22 NS 26 16.4 1 1 , 1-Dichlroethene NS NS NS ND NS ND ND ND NS ND ND 1 cis-1,2-Dichloroethene NS NS NS 194 NS 169 110 85 NS 110 99.8 1 trans-1,2-Dichloroethene NS NS NS ND NS 2.3 ND ND NS ND 1.2 1 1,2,4-Trichlorobenzene NS NS NS ND NS ND ND ND NS ND ND 1 Trichloroethene NS NS NS 3 NS 2.2 6.3 ND NS ND 4.4 1 Vinyl Chloride NS NS NS 53 NS 43.1 28 12 NS 18 21.3 1 Xylenes NS NS NS ND NS ND ND ND NS ND NAC 10 Tetrachloroethene NS NS NS ND NS ND ND ND NS ND ND 1 TotalVOCs NA NA NA 292 NA 270 190.3 119 NA 161.3 143.1 NA NOTES: All concentrations in micrograms per liter (µg/L) or parts per billion ND Not detected in a concentration at or above the laboratory detection limits (DL) DL Detection limit from last sampling event NA Not applicable NS Not sampled on this date NAC Not analyzed for this constituent TABLE S-1 SUMMARY OF voes DETECTED IN GROUNDWATER -MW-7 HONBARRIER, INC. FACILITY CHARLOTIE, MECKLENBURG COUNTY, NORTH CAROLINA MID-ATLANTIC PROJECT NO.: C262 CONSTITUENT SAMPLE COLLECTION DATE DL 5/8/97 12/19197 4/28/98 5/18/99 6/29199 12116199 6/27/00 12/11/00 6/15/01 12/5/01 12/30/02 Benzene 96 25 28 23 NS 34.4 48 87 NS ND 56 10 Chlorobenzene 630 110 180 190 NS 230 290 420 NS 300 246 1 2-Chlorotoluene ND ND ND ND NS ND ND ND NS ND ND 1 1 ,2-Dichlorobenzene ND ND ND ND NS ND ND ND NS ND 2.9 1 1 ,3-Dichlorobenzene ND 5.1 ND 8 NS 6.6 8.9 19 NS 13 5.1 1 1,4-Dichlorobenzene ND 29 46 59 NS 55.8 53 110 NS 87 33.2 1 1, 1-Dichloroethane ND ND ND 3 NS 7.7 ND 5.1 NS ND ND 1 1 , 1-Dichlroethene ND ND ND ND NS 5.4 ND ND NS ND ND 1 cis-1,2-Dichloroethene 430 250 280 530 NS 406 140 220 NS 160 18.4 1 trans-1,2-Dichloroethene ND ND ND 6 NS 4.9 ND 5.1 NS ND 1 1 1,2,4-Trichlorobenzene ND ND ND 20 NS 18.2 13 18 NS 7.5 ND 1 Trichloroethene 13 ND ND ND NS 21 21 6.1 NS ND ND 1 Vinyl Chloride 160 160 100 90 NS 120 70 160 NS 110 55.8 1 Xylenes 14 ND ND 3 NS 4.3 ND ND NS ND ND 10 Ethylbenzene 39 ND ND ND NS ND ND ND NS ND 27 10 Toluene 17 ND ND 2 NS ND ND ND NS ND ND 10 T etrachloroethene ND ND ND ND NS 21.3 21 ND NS 7.9 ND 1 TotalVOCs 1,399 579.1 634 934 NA 935.6 664.9 1,050.3 NA 685.4 445.4 NA NOTES: All concentrations in micrograms per liter (~tg/L) or parts per billion ND Not detected in a concentration at or above the laboratory detection limits (DL) DL Detection limit from last sampling event NA Not applicable NS Not sampled on this date TABLE S-1 SUMMARY OF voes DETECTED IN GROUNDWATER. MW-8 HON BARRIER, INC. FACILITY CHARLOTIE, MECKLENBURG COUNTY, NORTH CAROLINA MID-ATLANTIC PROJECT NO.: C262 CONSTITUENT SAMPLE COLLECTION DATE DL 5/8/97 12/19/97 4/28198 5/18/99 6/29/99 12/16/99 6127100 12/11/00 6/15/01 12/5/01 12/30/02 Benzene ND ND ND A A A A A A A A 5 Chlorobenzene ND ND 7.4 A A A A A A A A 5 2-Chlorotoluene ND 79 76 A A A A A A A A 5 1 ,3-Dichlorobenzene ND ND ND A A A A A A A A 5 1,4-Dichlorobenzene ND ND ND A A A A A A A A 5 1 , 1-Dichloroethane 36 110 74 A A A A A A A A 5 1, 1-Dichlroethene ND 5.4 ND A A A A A A A A 5 cis-1,2-Dichloroethene 37 590 220 A A A A A A A A 5 trans-1,2-Dichloroethene ND 8.2 ND A A A A A A A A 5 1 ,2,4-Trichlorobenzene ND ND ND A A A A A A A A 5 Trichloroethene ND 54 ND A A A A A A A A 5 Vinyl Chloride 48 180 190 A A A A A A A A 10 Xylenes ND ND ND A A A A A A A A 5 Ethylbenzene ND ND ND A A A A A A A A 5 Toluene ND ND ND A A A A A A A A 5 Tetrachloroethene ND ND ND A A A A A A A A 5 TotalVOCs 121 1,026.6 567.4 NA NA NA NA NA NA NA NA NA NOTES: All concentrations in micrograms per liter (µg/L) or parts per billion ND Not detected in a concentration at or above the laboratory detection limits (DL) DL Detection limit from last sampling event NA Not applicable NS Not sampled on this date A Well abandoned TABLE S-1 SUMMARY OF voes DETECTED IN GROUNDWATER. MW-9 HON BARRIER, INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA MID-ATLANTIC PROJECT NO.: C262 CONSTITUENT SAMPLE COLLECTION DATE DL 5/8/97 12/19/97 4/28/98 5/18/99 6/29/99 12/16/99 6127100 12/11/00 6/15/01 12/5/01 12/30/02 Benzene NS ND NS A A A A A A A A 5 Chlorobenzene NS ND NS A A A A A A A A 5 2-Chlorotoluene NS ND NS A A A A A A A A 5 1 ,3-Dichlorobenzene NS ND NS A A A A A A A A 5 1,4-Dichlorobenzene NS ND NS A A A A A A A A 5 1, 1-Dichloroethane NS ND NS A A A A A A A A 5 1, 1-Dichlroethene NS ND NS A A A A A A A A 5 cis-1,2-Dichloroethene NS ND NS A A A A A A A A 5 trans-1,2-Dichloroethene NS ND NS A A A A A A A A 5 1,2,4-Trichlorobenzene NS ND NS A A A A A A A A 5 Trichloroethene NS ND NS A A A A A A A A 5 Vinyl Chloride NS ND NS A A A A A A A A 10 Xylenes NS ND NS A A A A A A A A 5 Ethylbenzene NS ND NS A A A A A A A A 5 Toluene NS ND NS A A A A A A A A 5 Tetrachloroethene NS ND NS A A A A A A A A 5 Total VOCs NA ND NA NA NA NA NA NA NA NA NA NA NOTES: All concentrations in micrograms per liter (µg/L) or parts per billion ND Not detected in a concentration at or above the laboratory detection limfts (DL) DL Detection limft from last sampling event NA Not applicable NS Not sampled on this date A Well abandoned TABLE S-1 SUMMARY OF voes DETECTED IN GROUNDWATER. MW-10 HON BARRIER, INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA MID-ATLANTIC PROJECT NO.: C262 CONST1TU ENT SAMPLE COLLECTION DATE DL 5/8/97 12/19/97 4128198 5/18/99 6/29199 12116199 6127100 12/11/00 6/15/01 12/5/01 12/30/02 Benzene NS ND NS A A A A A A A A 5 Chlorobenzene NS ND NS A A A A A A A A 5 2-Chlorotoluene NS ND NS A A A A A A A A 5 1,3-Dichlorobenzene NS ND NS A A A A A A A A 5 1 ,4-Dichlorobenzene NS ND NS A A A A A A A A 5 1, 1-Dichloroethane NS ND NS A A A A A A A A 5 1, 1-Dichlroethene NS ND NS A A A A A A A A 5 cis-1,2-Dichloroethene NS ND NS A A A A A A A A 5 trans-1,2-Dichloroethene NS ND NS A A A A A A A A 5 1,2,4-Trichlorobenzene NS ND NS A A A A A A A A 5 Trichloroethene NS ND NS A A A A A A A A 5 Vinyl Chloride NS ND NS A A A A A A A A 10 Xylenes NS ND NS A A A A A A A A 5 Ethylbenzene NS ND NS A A A A A A A A 5 Toluene NS ND NS A A A A A A A A 5 Tetrachloroethene NS ND NS A A A A A A A A 5 TotalVOCs NA ND NA NA NA NA NA NA NA NA NA NA NOTES: All concentrations in micrograms per liter (p.g/L) or parts per billion ND Not detected in a concentration at or above the laboratory detection limits (DL) DL Detection limit from last sampling event NA Not applicable NS Not sampled on this date A Well abandoned TABLE S-1 SUMMARY OF voes DETECTED IN GROUNDWATER. MW-13 HON BARRIER, INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA MID-ATLANTIC PROJECT NO.: C262 CONSTITUENT SAMPLE COLLECTION DATE DL 518197 12119/97 4/28198 5118/99 6/29/99 12/16/99 6127100 12/11100 6115101 12/5/01 12/30/02 Benzene ND ND ND ND NS ND ND ND NS ND NAC 10 Chlorobenzene 12 13 15 14 NS 12.1 15 13 NS 14 4.6 1 2-Chlorotoluene ND ND ND ND NS ND ND ND NS ND ND 1 1,3-Dichlorobenzene ND ND ND ND NS ND ND ND NS ND ND 1 1,4-Dichlorobenzene ND 6.4 6.8 ND NS 4.4 5.2 ND NS ND 1.8 1 1, 1-Dichloroethane 10 16 9.6 5 NS 7.5 ND ND NS ND 2 1 1, 1-Dichlroethene ND 13 6.9 5 NS 4.1 ND ND NS ND ND 1 cis-1,2-Dichloroethene 130 150 140 131 NS 138 83 84 NS 83 43.1 1 trans-1,2-Dichloroethene ND ND ND ND NS ND ND ND NS ND ND 1 1,2,4-Trichlorobenzene ND ND ND ND NS 2.1 ND ND NS ND ND 1 T richloroethene ND 6 ND 2.5 NS ND ND ND NS ND ND 1 Vinyl Chloride 18 36 29 20 NS 13.5 12 10 NS 16 8.4 1 Xylenes ND ND ND ND NS ND ND ND NS ND NAC 10 Ethylbenzene ND ND ND ND NS ND ND ND NS ND NAC 10 Toluene ND ND ND ND NS ND ND ND NS ND NAC 10 Tetrachloroethene ND ND ND ND NS ND ND ND NS ND ND 1 Total VOCs 170 240.4 207.3 177.5 NA 181.7 115.2 107 NA 113 59.9 NA NOTES: All concentrations in micrograms per liter (µg/L) or parts per billion ND Not detected in a concentration at or above the laboratory detection limits (DL) DL Detection limit from last sampling event NA Not applicable NS Not sampled on this date NAC Not analyzed for this constituent "' TABLE S-1 SUMMARY OF voes DETECTED IN GROUNDWATER. MW-16 HON BARRIER, INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA MID-ATLANTIC PROJECT NO.: C262 CONSTITUENT SAMPLE COLLECTION DATE DL 5/8/97 12/19/97 4128/98 5/18/99 6/29199 12116199 6127100 12111/00 6/15/01 12/5/01 12/30/02 Benzene ND ND ND ND NS ND ND ND NS ND NS 5 Chlorobenzene ND ND ND ND NS ND ND ND NS ND NS 5 2-Chlorotoluene ND ND ND ND NS ND ND ND NS ND NS 5 1 ,3-Dichlorobenzene ND ND ND ND NS ND ND ND NS ND NS 5 1,4-Dichlorobenzene ND ND ND ND NS ND ND ND NS ND NS 5 1 , 1-Dichloroethane ND ND ND ND NS ND ND ND NS ND NS 5 1 , 1-Dichlroethene ND ND ND ND NS ND ND ND NS ND NS 5 cis-1,2-Dichloroethene 9.7 12 9.1 ND NS 9 5.4 5.2 NS 7.6 NS 5 trans-1,2-Dichloroethene ND ND ND ND NS ND ND ND NS ND NS 5 1,2,4-Trichlorobenzene ND ND ND ND NS ND ND ND NS ND NS 5 Trichloroethene ND ND ND ND NS ND ND ND NS ND NS 5 Vinyl Chloride ND ND ND ND NS ND ND ND NS ND NS 10 Xylenes ND ND ND ND NS ND ND ND NS ND NS 5 Ethylbenzene ND ND ND ND NS ND ND ND NS ND NS 5 Toluene ND ND ND ND NS ND ND ND NS ND NS 5 Tetrachloroethene ND ND ND ND NS ND ND ND NS ND NS 5 TotalVOCs 9.7 12 9.1 ND NA 9 5.4 5.2 NA 7.6 NA NA NOTES: All concentrations in micrograms per liter (µg/L) or parts per billion ND Not detected in a concentration at or above the laboratory detection limits (DL) DL Detection limit from last sampling event NA Not applicable NS Not sampled on this date TABLE S-1 SUMMARY OF voes DETECTED IN GROUNDWATER. MW-18 HON BARRIER, INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA MID-ATLANTIC PROJECT NO.: C262 CONSTITUENT SAMPLE COLLECTION DATE DL 5/8/97 12/19/97 4/28/98 5/18/99 6/29/99 12116/99 6127100 12/11/00 6/15/01 12/5/01 12/30/02 Benzene NS NS NS ND NS ND ND ND NS ND NS 5 Chlorobenzene NS NS NS ND NS ND ND ND NS ND NS 5 2-Chlorotoluene NS NS NS ND NS ND ND ND NS ND NS 5 1,3-Dichlorobenzene NS NS NS ND NS ND ND ND NS ND NS 5 1,4-Dichlorobenzene NS NS NS ND NS ND ND ND NS ND NS 5 1, 1-Dichloroethane NS NS NS ND NS ND ND ND NS ND NS 5 1, 1-Dichlroethene NS NS NS ND NS ND ND ND NS ND NS 5 cis-1,2-Dichloroethene NS NS NS ND NS ND ND ND NS ND NS 5 trans-1,2-Dichloroethene NS NS NS ND NS ND ND ND NS ND NS 5 1,2,4-Trichlorobenzene NS NS NS ND NS ND ND ND NS ND NS 5 Trichloroethene NS NS NS ND NS ND ND ND NS ND NS 5 Vinyl Chloride NS NS NS ND NS ND ND ND NS ND NS 10 Xylenes NS NS NS ND NS ND ND ND NS ND NS 5 Ethylbenzene NS NS NS ND NS ND ND ND NS ND NS 5 Toluene NS NS NS ND NS ND ND ND NS ND NS 5 Tetrachloroethene NS NS NS ND NS ND ND ND NS ND NS 5 TotalVOCs NA NA NA ND NA ND ND ND NA ND NA NA NOTES: All concentrations in micrograms per liter (µg/L) or parts per billion ND Not detected in a concentration at or above the laboratory detection limits (DL) DL Detection limit from last sampling event NA Not applicable NS Not sampled on this date TABLE S-1 SUMMARY OF voes DETECTED IN GROUNDWATER. MW-19 HON BARRIER, INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA MID.ATLANTIC PROJECT NO.: C262 CONSTITUENT SAMPLE COLLECTION DATE DL 5/8/97 12/19/97 4128198 5/18/99 6/29199 12/16199 6/27/00 12/11/00 6/15/01 12/5/01 12/30/02 Benzene NP NP NS ND ND ND ND ND ND ND NAC 10 Chlorobenzene NP NP NS ND ND ND ND ND ND ND ND 1 2-Chlorotoluene NP NP NS ND ND ND ND ND ND ND ND 1 1 ,3-Dichlorobenzene NP NP NS ND ND ND ND ND ND ND ND 1 1,4-Dichlorobenzene NP NP NS ND ND ND ND ND ND ND ND 1 1 , 1-Dichloroethane NP NP NS 11 3.5 7.5 9.1 5.6 8.4 ND 4.3 1 1 , 1-Dichlroethene NP NP NS 9.4 ND 5.5 7.3 ND 4.2 ND ND 1 cis-1,2-Dichloroethene NP NP NS 26 16.3 18.5 23 8.3 21.9 8.7 6.9 1 trans-1,2-Dichloroethene NP NP NS ND ND ND ND ND ND ND ND 1 1,2,4-Trichlorobenzene NP NP NS ND ND ND ND ND ND ND ND 1 T richloroethene NP NP NS ND ND ND ND ND ND ND ND 1 Vinyl Chloride NP NP NS ND ND ND ND ND 6.2 ND 2.8 1 Xylenes NP NP NS ND ND ND ND ND ND ND NAC 10 Ethylbenzene NP NP NS ND ND ND ND ND ND ND NAC 10 Toluene NP NP NS ND ND ND ND ND ND ND NAC 10 Tetrachloroethene NP NP NS ND ND ND ND ND ND ND ND 1 TotalVOCs NA NA NA 46.4 19.8 31.5 39.4 13.9 40.7 8.7 14.0 NA NOTES: All concentrations in micrograms per liter (µg/L) or parts per billion ND Not detected in a concentration at or above the laboratory detection limits (DL) DL Detection limit from last sampling event NA Not applicable NS Not sampled on this date NP Not present at this time NAC Not analyzed for this constituent January 31, 2002 Mr. Andrew H. Pitner ID-ATLANTIC A S S 0 C I AT E S, P.A. Environmental Soi11rio11s NJ lioxMi900./ !Char/ol/e /North C11mli111i !782fif>.'JIHi./ Sl!i!-750-0298I704-398-9/12 I 704-398-'JJ !-I 1;1ni111il,- lVWH:maaonline.c<m1 North Carolina Department of Environment and Natural Resources Division of Water Quality Mooresville Regional Office 91 9 North Main Street Mooresville, North Carolina 2811 5 Subject: ANNUAL GROUNDWATER MONITORING REPORT HONBARRIER, INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA GROUNDWATER INCIDENT NO.: 8440 MID-ATLANTIC JOB NO.: C262 Dear Mr. Heller: On behalf of Honbarrier, Inc., Mid-Atlantic Associates is pleased to submit this Annual Groundwater Monitoring Report for the Honbarrier, Inc. facility located in Charlotte, North Carolina. This report summarizes the results of the annual groundwater sampling event conducted in December 2001 . If there are any questions concerning this report, please contact me at (704) 398- 9112. We look forward to your response regarding our recommendation. Sincerely, MID-ATLANTIC ASSOCIATES Douglas R. Rowles Environmental Scientist Pc: Mr. Max Towry -Honbarrier, Inc., High Point, NC ANNUAL GROUNDWATER MONITORING REPORT HONBARRIER INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA GROUNDWATER INCIDENT NO.: 8440 Prepared For: Honbarrier, Inc. Post Office Box 7072 High Point, North Carolina 27263 Prepared by: Mid-Atlantic Associates, P.A. Post Office Box 669004 Charlotte, North Carolina 28266-9004 January 31, 2002 En\·ironmental Solutions ID-ATLANTIC A S S 0 C I AT E S, P.A. E11viro11me11tal So/utions PO Box669004 !Charlotte /North Camlinu /282M-9004 8110-750-02981704-398-91121704-398-9114 f'(1ni111ile H-'W\1~maaonline.co111 ANNUAL GROUNDWATER MONITORING REPORT HONBARRIER, INC. FACILITY CHARLOTTE, MECKLENBURG COUNTY, NORTH CAROLINA GROUNDWATER INCIDENT NO.: 8440 January 31, 2002 Mid-Atlantic Job No.: C262 Prepared For: Prepared By: Honbarrier, Inc. MID-ATLANTIC ASSOCIATES, P.A. Post Office Box 7027 High Point, North Carolina 27263 J~-IZ~ TABLE OF CONTENTS 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 SITE HISTORY........................................................................................ 1 3.0 FIELD ACTIVITIES ................................................................................... 1 4.0 GROUNDWATER FLOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 5.0 ANALYTICAL RESULTS........................................................................... 2 6.0 CONCLUSIONS AND RECOMMENDATIONS ................................................. 3 DRAWINGS Drawing 1.1 Topographic Site Map Drawing 2.1 Estimated Shallow Groundwater Flow Map Drawing 5.1 Total VOC Concentration Map TABLES Physical Characteristics of Existing Monitoring Wells Summary of Groundwater Field Parameters Table 3.1 Table 3.2 Table 5.1 Summary of Chemical Constituents Detected in Groundwater APPENDICES Appendix A Laboratory Report and Chain-of-Custody Record Appendix B Historical Groundwater Sample Results and Site Map MP?;{\fr1A4-N!J~ Enl'ironrnental Solutions 1.0 INTRODUCTION Mid-Atlantic Associates, P.A. (Mid-Atlantic) is pleased to present this report summarizing the annual groundwater sampling activities conducted at the Honbarrier, Inc. (Honbarrier) facility located at 600 Melynda Road in Charlotte, North Carolina (Drawing 1 .1). Groundwater sampling was conducted according to the requirements of the North Carolina Department of Environment and Natural Resources (NCDENR), Division of Water Quality (DWQ) in correspondence dated May 3, 1999 and entitled, Recommended Site Activities. 2.0 SITE HISTORY Honbarrier provided bulk-hauling services to a variety of industries. The entire site consists of 30 acres, approximately six acres of which were actively used for terminal operations. The terminal operations began in 1969, under the name Central Transport Incorporated. The site had been farmed prior to its purchase. The facility consisted of a terminal office, maintenance garage, truck wash bays, a boiler house for steam production, a wastewater pretreatment system, former waste treatment lagoons, and parking facilities for empty tank trucks. The site included a facility for cleaning the inside of empty tank trucks following delivery of bulk chemicals. Rinse waters that were generated from these washing operations were collected and treated prior to discharge to the Charlotte Mecklenburg Utility District treatment plant in accordance with permit number 0188. Historically, two on-site impoundments were used to treat tank truck rinse waters. During the 1 970s and 1980s, site operations resulted in the release of contaminants into the soil and groundwater. Use of the impoundments was terminated in 1985 when a new pretreatment system commenced operation. Closure of the impoundments began in 1991. The impoundments closed as a landfill in 1992 and are capped to meet Resource Conservation and Recovery Act requirements. Drawing 2.1 shows the location of site surface features, the regulated unit (closed landfill), and seven site monitoring wells installed during the contamination assessment process. Monitoring wells MW-9, MW-10, MW-11, MW-12, MW-14, MW-15, and MW-17 were abandoned on May 15, 1999 in compliance with NCDENR's Recommended Site Activities, and are no longer represented on the site map. Terminal operations at the site ceased in approximately 1995 and the property is currently vacant. 3.0 FIELD ACTIVITIES Mid-Atlantic mobilized to the site on December 5, 2001 to conduct the groundwater sampling activities. The seven monitoring wells sampled during the annual event included MW-2, MW-6, MW-7, MW-13, MW-16, MW-18, and MW-19 (Drawing 2. 1). Prior to purging the wells of at least three volumes of water using new disposable bailers, Mid-Atlantic measured the depth to water in each well using a decontaminated electric water level indicator. A new pair of protective, non-reactive gloves was E11dru11me11tal Solutions Annual Groundwater Monitoring Report Honbarrie~ Inc. Facflfty Charlotte, North Carolina January 31, 2002 Page 2 donned at each well prior to collecting water level measurements. The measured depths were subtracted from the casing elevations to determine the groundwater elevation relative to Mean Sea Level. The physical characteristics of the site monitoring wells and groundwater elevation data are summarized in Table 3.1. After purging the wells, water samples were collected from the same bailers used to purge each well and decanted into laboratory-supplied containers. The containers were placed into an ice-filled cooler and transported under proper chain-of-custody to Pace Analytical Services, Inc. of Huntersville, North Carolina. At the laboratory, the seven groundwater samples were analyzed for volatile organic compounds (VOCs) in accordance with SW-846 Method 8260. In addition, groundwater field measurements were collected for pH, electrical conductivity, and temperature (Table 3.2). The dissolved oxygen meter was inoperable at the time of sampling. 4.0 GROUNDWATER FLOW Groundwater flow direction in the surficial aquifer was estimated based on water level data obtained from the monitoring wells on December 5, 2001 (Drawing 2.1 ). Interpretation of the relative water table elevations suggests that groundwater flows generally to the south across the site. This flow direction is consistent with previously interpreted flow determinations. 5.0 ANALYTICAL RESULTS The laboratory analytical results for the groundwater samples collected on December 5, 2001 are contained in Appendix A and summarized in Table 5.1. As summarized, groundwater samples collected from monitoring wells MW-6 and MW-18 did not exhibit VOCs in concentrations at or above the laboratory Practical Ouantitation Limits (PQLs). No VOCs were detected in the groundwater samples collected from MW-16 and MW-19 in concentrations which exceeded established North Carolina Groundwater Quality Standards (NCGWQS). Several VOCs were detected in the groundwater samples collected from monitoring wells MW-2, MW-7, and MW-13 in concentrations which exceeded their respective NCGWQS (Table 5.1 ). These VOCs included cis-1,2-dichloroethene (cis-1,2-DCE), tetrachloroethene (PCE), vinyl chloride, chlorobenzene, and 1,4-dichlorobenzene. A total VOC concentration map, showing total detectable VOCs, is provided as Drawing 5.1. Historical groundwater sample results and a site map showing existing and previously abandoned monitoring wells is presented in Appendix B. Assessment activities prior to 1997 were performed by various consulting firms. Therefore, Mid-Atlantic does not have access to all site information prior to this date. Historical laboratory analytical results were previously forwarded to Mr. Matt Heller of the NCDENR in correspondence from Mid-Atlantic dated March 25, 1999. MID-ATLANTIC ASSOCIATES, P.A. F:!:!':'ro11menta/ Solutions Annual Groundwater Monitoring Report Honbarrier, Inc. Facility Charlotte, North Carolina 6.0 CONCLUSIONS AND RECOMMENDATIONS January 31, 2002 Page 3 Based on the field and laboratory analytical results Mid-Atlantic offers the following conclusions and recommendations. • Shallow groundwater flow is directed toward the south across the site. • The water samples collected from monitoring wells MW-6 and MW-18 did not exhibit concentrations of voes at or above the POLs. No voes were detected in the groundwater samples collected from MW-16 and MW-19 in concentrations which exceeded established NeGWQS. • Groundwater samples collected from monitoring wells MW-2, MW-7, and MW-13 exhibited concentrations of voes which exceeded established NeGWQS. ehlorobenzene, 1,4-dichlorobenzene, cis-1,2-DeE, PeE, and vinyl chloride were detected at concentrations above their respective NeGWOS. • Based on the information presented above, as well as historical analytical results, Mid-Atlantic recommends collecting groundwater samples from monitoring wells MW-2, MW-7 I MW-13, and MW-19 for analysis of voes according to EPA Method 601 in December 2002. E11l'iro11mental Solutions DRAWINGS TABLES APPENDIX A LABORATORY REPORT AND CHAIN-OF-CUSTODY RECORD APPENDIX B HISTORICAL GROUNDWATER SAMPLE RESULTS AND SITE MAP Table 2 Historical Monitoring Data for Well MW-7 10/89 06/90 12/90 3/07/91 3/21/91 6/91 9/91 2/93 6/93 CATEGORY PARAMETER {unfit!.) (unfilt.) (unfit!.) (unfilt.) {unfit!.) (unfilt.) (unfilt.) (unfilt.) (unfilt.) Metals Aluminum 340 90.4 48 6.9 21 < 0.1 28 7.2 30 {ppm) Arsenic 0.1 0.13 < 0.01 < 0.01 < 0.01 < 0.01 < 0.005 < 0.005 0.012 Barium 1.14 0.87 < 0.1 < 0.1 0.12 0.82 < 0.05 0.2 2 Beryllium NO ND 0.02 0.05 0.1 0.17 0.15 < 0.05 0.01 Cadmium NO ND 0.02 < 0.01 0.01 < 0.01 < 0.01 < 0.01 < 0.01 Calcium 117 85.9 59 57 68 140 140 57 380 Chromium 0.58 0.21 0.06 0.05 0.04 0.13 < 0.01 0.01 0.49 Cobalt 0.33 0.11 0.06 0.03 0.13 0.34 0.05 < 0.05 0.31 Copper 5.11 1.02 0.38 0.02 0.02 0.75 0.32 0.04 2.3 Iron 743 104 60 19 63 38 38 11 290 Lead 1.45 0.32 0.17 0.02 0.08 0.05 0.04 < 0.05 1.1 Magnesium 185 68.7 45 43 57 120 96 34 140 Manganese 5.7 4.49 5.0 5 5.7 9.5 2.7 1.5 4.8 Nickel 0.29 0.11 0.07 0.03 0.04 0.27 0.05 < 0.05 0.26 Potassium 71 15.0 7.1 4.8 5.7 6.8 9.6 6 41 Silver NO 0.15 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 Sodium 298 212 190 190 170 76 110 92 140 Vanadium 1.97 ND 0.2 0.03 0.2 0.2 0.13 < 0.05 1.2 Zinc 1.05 0.34 0.19 0.09 0.17 0.25 0.07 0.04 1.1 Cvanide 0.01 NT < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 Base/Neutral Di-n-Butyl Phthalate (ppb) 28 B 1 ND ND ND ND ND NO ND Acid Naphthalene (ppb) 8 2 ND ND NO ND NO NO 11 Extractables Bis (2-ethylhexyl) Phthalate (ppb) ND NO ND NO NO ND ND NO NO (ppb) 1.3-Dichlorobenzene NO 3 3 NO ND ND ND ND ND N-Nltrosodlphenylamlne ND ND ND ND ND ND NO NO ND Phenol (ppb) ND ND ND NO ND ND ND NO 17 2.4-0imethylphenol (ppb) NO 9 4 ND 5 5 5 NO 54 1 4-Dichlorobenzene ND ND ND NO 7 7 17 NO 50 Volatile Vinyl Chloride NO ND NO NA 110 110 88 NO NO Organic Acetone NT ND ND ND NO ND ND NO ND Compounds Benzene (ppb) 570 190 ND 110 42 42 ND 110 ND (ppb) 1, 1 ·Dlchloroethylene (ppb) 790 NO NO ND NO ND 700 ND ND 1.2-0lchlorobenzene (ppb) 3 NO NO ND ND NO NO ND NO Ethylbenzene (ppb) 640 ND ND 30 37 37 110 100 ND Methylene Chloride ND NO ND ND ND NO ND ND ND Toluene (ppb) 360 ND ND NO ND NO 11 9 ND 1.2.4-Trichlorobenzene (ppb) 5 ND ND NO 11 11 ND NO ND 1. 1, 1 ·Trichloroethane ND ND ND ND 11 11 ND ND ND m-Xylene (ppb) 510 ND ND ND ND ND ND ND ND Xylenes (ppb) ND 1500 ND 59 81 81 ND 56 ND 1.2-Dlchtoroethene ND 31 ND ND 64 64 ND 6 ND Chloroform (ppb) NO ND ND NO ND ND NO NO NO 1, 1 Dichloroethane NO ND ND NA NO ND ND NO ND Chloroethane NO 23 ND Chlorobenzene ND 8 NA Miscellaneous Chloride NA NA 140 140 110 220 230 160 NA (ppm) MPN Total Coliforms NA NA >= 1600 < 2 < 2 2 200 40 NA Color NA NA 20 > 70 30 30 50 15 NA Solids NA NA 720 740 760 1100 900 710 940 Fluoride NA NA 0.3 0.3 < 0.2 0.3 0.2 0.6 NA Surfactants (MBAS) NA NA < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.1 NA Nitrate NA NA < 0.02 0.07 0.03 0.04 0.02 < 0.05 NA Nitrite NA NA < 0.02 0.05 < 0.02 < 0.02 0.04 < 0.05 NA pH NA NA 6.8 6.6 6.4 6.6 6.3 7 7.7 Sulfate NA NA 110 24 35 51 82 19 NA frmtd Table 3 Hlstorlcal Monitoring Data for Well MW-8 10/89 06190 12/90 3/07191 3/21/91 5/91 9/91 2193 6/93 CATEGORY PARAMETER (unfilt.) (unfilt.) (unfilt.) (unfilt.) (unfilt.) (unfilt.} (unfilt.) (unfilt.) (unfitt.} Metals Aluminum 320 1.83 220 22 180 NA 130 86 14 (ppm) Arsenic 0.04 ND < 0.01 < 0.01 < 0.01 NA < 0.005 < 0.005 < 0.025 Barium 2.11 0.10 0.56 1.7 0.12 NA < 0.05 0.5 1 Beryllium ND ND 0.22 0.09 0.39 NA 0.31 < 0.05 < 0.05 Cadmium ND ND 0.01 < 0.01 0.02 NA < 0.01 < 0.01 < 0 01 Calcium 91 24.7 150 170 160 NA 77 64 110 Chromium 2.65 ND 1.8 0.06 1.28 NA 1.2 0.92 1.3 Cobalt 0.62 ND 0.41 0.24 0.49 NA 0.23 0.11 0.23 Copper 2.48 0.01 1.7 0.61 1.73 NA 1.3 0.97 1.4 Iron 820 4.02 260 19 170 NA 180 140 210 Lead 0.06 ND < 0.02 < 0.02 < 0.02 NA < 0.03 0.14 0.13 Magnesium 375 17.8 260 93 230 NA 140 92 150 Manganese 12.5 0.41 10 9.6 12 NA 5.4 3.3 5.1 Mercury < 0.0005 0.005 0.001 Nickel 1.08 ND 0.84 0.09 0.7 NA 0.45 0.12 0.42 Potassium 37.4 3.42 15 7 12 NA 12 5 10 Silver ND 0.08 < 0.01 < 0.01 < 0.01 NA < 0.01 < 0.01 < 0.01 Sodium 59 16.2 44 59 58 NA 52 43 41 Vanadium 1.93 ND 0.68 0.17 0.52 NA 0.53 0.42 0.59 Zinc 0.84 0.05 0.67 0.09 0.57 NA 0.33 0.23 0.33 Cvanide ND NT < 0.01 < 0.01 < 0.01 NA < 0.01 < 0.01 < 0.01 Base/Neutral Di-n-Butyl Phthalate (ppb) ND ND ND ND NO ND ND ND NO Acid Naphthalene (ppb) NO NO ND NO NO ND NO NO NO Extractables Bis (2-elhylhexyl) Phthalate (ppb) ND ND ND ND ND NO NO ND NO (ppb) 1,3-0ichlorobenzene ND ND NO ND NO NO ND ND NO N-Nitrosodlphenylamlne ND ND ND ND ND ND ND NO ND Phenol (ppb) ND ND ND NO ND ND NO NO ND 2.4-Dimethylphenol (ppb) NO ND ND NO NO ND ND ND ND 1 4-Dichlorobenzene NO ND ND ND ND ND ND ND NO Volatile Vinyl Chloride ND ND ND ND ND ND NO NO ND Organic Acetone NT ND 43 ND ND NO ND ND ND Compounds Benzene (ppb) ND ND NO ND ND 32 ND ND ND (ppb) 1.1-0ichloroethylene (ppb) ND ND ND ND ND 5 ND ND ND 1.2-Dlchlorobenzene (ppb) ND NO ND ND ND ND ND ND ND Ethylbenzene (ppb) NO NO ND ND NO NO NO NO ND Methylene Chloride ND 13 ND NO NO ND NO NO ND Toluene (ppb) ND NO ND NO NO ND NO NO ND 1.2.4-Trichlorobenzene (ppb) ND NO ND NO ND ND ND ND ND 1, 1, 1-T rlchloroethane ND NO NO ND 16 ND ND NO ND Tetrachloroethene ND 320 130 T richloroethylene NO 190 87 m-Xylene (ppb) NO NO NO NO NO ND NO ND ND Xylenes (ppb) NO ND ND ND NO NO ND NO NO 1,2-Dlchloroethene (total) (ppb) ND ND ND ND NO ND NO NO ND Chloroform (ppb) ND NO NO NO NO ND NO NO ND 1 1 Dichloroethane ND ND ND ND 13 4 12 ND ND Miscellaneous Chloride NA NA 93 90 100 NA 74 31 NA (ppm) MPN Total Coliforms NA NA 13 < 1 < 2 NA 500 < 10 NA Color NA NA 20 70 70 NA 70 10 NA Solids NA NA 530 510 540 NA 550 430 430 Fluoride NA NA 0.3 0.2 0.2 NA 0.2 0.3 NA Surfactants (MBAS) NA NA < 0.01 < 0.01 < 0.01 NA < 0.01 < 0.01 NA Nitrate NA NA < 0.02 < 0.02 0.08 NA O.D3 < 0.05 NA Nitrite NA NA < 0.02 < 0.02 < 0.02 NA 0.04 < 0.05 NA pH NA NA 6A 5.9 6.1 NA 6.2 7 6.8 Sulfate NA NA 64 48 53 NA 36 52 NA frmtd Table 4 Historical Monitoring Data for Well MW-9 10/89 06190 12190 3121/91 6191 9/91 2193 6/93 CATEGORY PARAMETER (unfilt.} (unfilt.) (unfilt.) (unfilt.) (unfill.) (until!.) (unfilt) (unfilt.) Metals Aluminum 39 1.63 3.2 4.9 2.5 13 0.4 0.4 (ppm) Arsenic ND ND < 0.01 < 0.01 < 0.01 < 0.005 < 0.005 < 0.025 Barium 0.28 0.1 < 0.1 < 0.1 < 0.05 < 0.05 < 0.1 < 0.1 Beryllium ND ND 0.06 0.07 0.05 0.1 < 0.05 < 0.05 Cadmium ND ND 0.04 0.01 < 0.01 < 0.01 < 0.01 < 0.01 Calcium 33.9 26 26 28 28 28 19 23 Chromium 0.06 ND 0.02 < 0.01 0.02 < 0.01 < 0.01 < 0.01 Cobalt 0.04 0.01 0.02 0.02 0.01 0.02 < 0.05 < 0.05 Copper 0.06 ND 0.03 < 0.01 0.05 0.01 < 0.01 < O.Q1 Iron 195 3.63 6.2 12 1.4 29 0.96 0.83 Lead ND ND < 0.02 < 0.02 < 0.02 < 0.03 < 0.05 < 0.05 Magnesium 51.1 18 19 22 15 26 15 17 Manganese 2.78 0.41 0.44 0.88 0.36 0.74 0.16 0.46 Nickel 0.04 ND 0.05 < 0.02 < 0.02 0.03 < 0.05 < 0.05 Potassium 11.9 4.33 3.4 3.5 < 0.5 2.8 < 5 < 5 Silver ND 0.07 < 0.01 0.01 < 0.01 < 0.01 < 0.01 < 0.01 Sodium 15.6 16.7 14 14 12 13 14 14 Vanadium 0.19 ND 0.02 0.04 0.02 0.06 < 0.05 < 0.05 Zinc 0.12 0.02 0.05 0.04 0.02 0.04 0.04 0.02 Cvanide ND NT < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 Base/Neutral Di-n-Butyl Phthalate (ppb) NO NO NO ND ND NO ND ND Acid Naphthalene (ppb) NO ND ND ND ND ND ND NO Extractables Bis (2-ethylhexyQ Phthalate (ppb) ND ND ND ND ND ND ND NO (ppb) 1,3-Dlchlorobenzene ND ND ND ND NO ND ND ND N-Nitrosodiphenylamine ND ND NO NO NO ND ND NO Phenol (ppb) NO NO NO NO ND ND NO ND 2,4-Dimethylphenol (ppb) ND ND ND NO ND NO ND ND 1 4-Dichlorobenzene ND ND ND NO ND ND ND ND Volatile Vinyl Chloride ND ND ND ND ND ND ND ND •rganlc Acetone NT ND ND NO ND ND ND ND >mpounds Benzene (ppb) ND ND ND ND ND ND ND ND ,ppb) 1, 1-Dichloroethytene (ppb) ND ND ND ND ND ND ND ND 1,2-Dlchlorobenzene (ppb) ND ND ND ND ND NO NO ND Ethylbenzene (ppb) ND ND ND ND ND ND ND NO Methylene Chloride ND ND NO ND ND ND ND ND Toluene (ppb) ND ND ND ND ND ND ND NO 1,2,4-Trichlorobenzene (ppb) ND ND NO NO NO NO NO ND 1, 1, 1-Trlchloroethane ND ND NO ND NO NO ND ND m-Xylene (ppb) ND ND ND ND ND ND ND ND Xylenes (ppb) NO ND NO ND ND NO NO ND 1,2·Dichloroethene (total) (ppb) NO ND ND NO ND ND NO ND Carbon Disulfide NO 6 ND Chloroform (ppb) ND ND NO ND ND ND ND NO 1 1 Oichloroethane ND ND NO ND ND ND NO ND Miscellaneous Chloride NA NA 8 7 7 9 9 NA (ppm) MPN Total Coliforms NA NA >= 1600 < 2 < 2 23 10 NA Color NA NA 20 10 20 40 15 NA Solids NA NA 190 180 230 210 260 200 Fluoride NA NA 0.2 < 0.2 < 0.2 < 0.2 0.1 NA Surfactants (MBAS) NA NA < 0.01 < 0.01 < 0.01 < 0.01 < 0.1 NA Nitrate NA NA < 0.02 0.07 0.06 < 0.03 0.06 NA Nitrite NA NA 0.03 < 0.02 0.02 0.06 < 0.05 NA pH NA NA 7 6.6 7.1 6.8 7.4 7.4 Sulfate NA NA 81 12 26 47 16 NA Table 5 Historical Monitoring Data for Well MW-10 10/89 06190 12190 3/21191 5191 I 9/91 I 2193 6193 CATEGORY PARAMETER (unfilt.) (unfilt.l (unfilt.) (unfilt.) (unfilt.) I (unfilt.) (unfilt.) (unfilt.) Metals Aluminum 100 8.48 15 1.5 34 8.5 2.6 12 {ppm) Arsenic 0.04 ND < 0.01 < 0.01 < 0.01 < 0.005 < 0.005 < 0.025 Barium 0.48 0.16 < 0.1 < 0.1 <. U.U;) < 0.05 < 0.1 < 0.1 Beryllium ND ND 0.09 0.05 0.13 0.07 < 0.05 < 0.05 Cadmium ND ND 0.01 0.01 < 0.01 < 0.01 < 0.01 < 0.01 Calcium 36.5 25.0 25 22 69 26 19 24 Chromium 0.17 0.04 0.02 < 0.01 0.05 < 0.01 < 0.01 0.01 Cobalt 0.12 0.02 0.02 < 0.01 0.04 0.01 < 0.05 < 0.05 Copper 0.55 0.05 0.04 0.02 0.19 0.06 0.02 0.01 Iron 200 7.24 12 0.84 34 7.6 2.7 4.4 Lead 0.15 0.02 0.03 < 0.02 0.04 < 0.03 < 0.05 < 0.05 Magnesium 34.7 13.5 14 12 27 14 11 14 Manganese 2.29 0.19 0.28 0.16 4.6 0.22 0.07 0.08 Nickel 0.05 0.02 0.04 < 0.02 0.03 0.02 < 0.05 < 0.05 Potassium 7.6 3.24 1.7 2.2 3.6 3.3 < 5 < 5 Silver ND 0.04 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 Sodium 14.5 15.5 14 13 9.9 13 14 14 Vanadium 0.66 ND 0.04 0.02 0.15 0.03 < 0.05 < 0.05 Zinc 0.15 0.09 0.07 0.01 0.07 0.02 0.04 0.02 Cvanide ND NT < 0.01 < 0.01 < 0.01 < 0.01 ND < 0.01 Base/Neutral Di-n-Butyl Phthalate (ppb) ND ND ND ND ND ND ND ND Acid Naphthalene (ppb) ND ND ND ND NO NO ND NO Extractables Bis (2-ethylhexy~ Phthalate (ppb) ND ND ND ND ND ND ND ND {ppb) 1.3-Dichlorobenzene ND ND ND ND ND ND ND ND N-Nitrosodiphenylamine ND ND ND NO ND ND ND ND Phenol {ppb) NO NO NO NO ND ND ND ND 2.4-Dimethylphenol (ppb) ND ND ND ND ND ND NO ND 1 4-Dichlorobenzene ND ND ND ND ND ND ND ND Volatile Vinyl Chloride ND ND ND ND ND ND ND ND "lrganlc Acetone NT ND ND NO NO ND NO NO ompounds Benzene (ppb) NO ND ND ND NO ND ND NO (ppb) 1, 1-0ichloroethylene (ppb) ND NO NO NO ND ND ND ND 1,2-0ichlorobenzene (ppb) ND ND NO ND NO ND ND ND Ethylbenzene (ppb) ND ND ND ND ND NO ND ND Methylene Chloride ND ND ND ND ND ND ND ND Toluene (ppb) ND NO ND NO ND ND ND ND 1,2,4· Trlchlorobenzene (ppb) ND ND ND ND ND ND ND ND 1, 1, 1 ·Trichloroethane ND ND ND NO ND ND ND ND m-Xylene (ppb) ND ND ND ND ND ND ND ND Xylenes (ppb) ND ND ND ND ND ND ND ND 1.2-Dichloroethene (total) (ppb) ND ND ND ND ND ND ND ND Carbon Disulfide ND 10 ND Chloroform (ppb) ND NO ND ND ND ND ND ND 1 1 Dichloroethane ND ND ND ND NO ND ND ND Miscellaneous Chloride NA NA 11 12 13 12 13 NA (ppm) MPN Total Coliforms NA NA >= 1600 < 2 < 2 17 20 NA Color NA NA 10 30 20 60 10 NA Solids NA NA 270 180 710 240 290 200 Fluoride NA NA < 0.2 < 0.2 < 0.2 < 0.2 0.2 NA Surfactants (MBAS) NA NA < 0.01 < 0.01 < 0.01 < 0.01 < 0.1 NA Nitrate NA NA 0.81 1.18 1.15 1.01 1.2 NA Nitrite NA NA < 0.02 < 0.02 < 0.02 0.16 < 0.05 NA pH NA NA 7.0 6.5 7 7 7.2 7.2 Sulfate NA NA 35 12 13 22 31 NA rnntd Table 6 Historical Monitoring Data for Well MW-11 10/89 06/90 12/90 3/21/91 6/91 9/91 2/93 CATEGORY PARAMETER (unfilt.) (unfilt.) (unfilt) (unfilt.) (unfilt.) (unfilt.) (unfilt.) Metals Aluminum 4.1 10.4 89 12 130 17 14 (ppm) Arsenic ND NO < 0.01 < 0.01 < 0.01 < 0.005 < 0.005 Barium 0.19 0.37 0.65 0.2 < 0.05 < 0.05 0.1 Beryllium ND NO 0.24 0.07 0.29 0.09 < 0.05 Cadmium ND ND 0.01 0.01 0.01 < 0.01 < 0.01 Calcium 70 157 72 74 140 58 42 Chromium ND 0.16 0.2 0.04 0.78 < 0.01 0.04 Cobalt ND 0.02 0.17 0.05 0.22 0.03 < 0.05 Copper 0.02 0.06 0.53 0.11 0.47 0.09 0.08 Iron 2.23 8.52 98 16 160 16 15 Lead NO 0.04 0.1 < 0.02 0.03 < 0.03 < 0.05 Magnesium 4.1 9.81 58 25 140 22 15 Manganese 1.79 0.88 16 7.3 6.2 2.3 2.5 Nickel ND 0.03 0.19 0.03 0.48 0.03 < 0.05 Potassium 10.2 61.7 14 8.4 8.7 5.6 < 5 Silver ND 0.04 < 0.01 < 0.01 < 0.01 < 0.01 < 0.01 Sodium 24.4 33.6 5.2 12 4.6 13 17 Vanadium 0.46 ND 0.38 0.1 0.51 0.06 0.07 Zinc ND 0.07 0.28 0 05 9.5 0.05 0.07 Cvanide ND NT < 0.01 < 0.01 < 0.01 < 0.01 Base/Neutral Di-n-Butyl Phthalate (ppb) ND ND NO ND ND ND NO Acid Naphthalene (ppb) ND NO ND NO ND NO NO Extractables Bis (2-ethylhexyl) Phthalate (ppb) ND ND NO NO ND ND ND (ppb) 1.3-0ichlorobenzene ND NO NO NO NO NO ND N-Nitrosodiphenylamine ND ND ND ND ND ND NO Phenol (ppb) ND ND ND ND ND ND ND 2,4-Dimethylphenol (ppb) ND ND ND ND ND ND ND 1 4-Dichforobenzene ND ND ND ND ND ND ND .>la tile Vinyl Chloride ND ND ND ND ND ND ND Organic Acetone NT 11 ND ND ND ND ND Compounds Benzene (ppb) ND ND ND ND ND ND ND (ppb) 1, 1-Dichloroethylene (ppb) ND ND ND ND ND ND ND 1,2-Dichlorobenzene {ppb) ND ND NO NO ND ND ND Ethylbenzene (ppb) ND NO ND ND NO ND ND Methylene Chloride ND ND ND ND ND ND ND Toluene (ppb) ND ND NO ND ND ND ND 1.2.4-Trichlorobenzene (ppb) ND ND ND ND ND ND ND 1, 1, 1-Trichloroethane ND ND NO ND ND ND ND m-Xylene (ppb) NO ND ND NO NO ND ND Xylenes (ppb) ND NO ND ND NO NO ND 1.2-0ichloroethene (total) (ppb) ND ND NO ND NO ND ND Chloroform (ppb) ND NO ND NO ND ND NO 1 1 Dichloroethane ND ND NO NO NO NO ND Miscellaneous Chloride NA NA 11 13 13 17 13 (ppm) MPN Total Coliforms NA NA >= 1600 17 900 500 12 Color NA NA 20 60 40 50 10 Solids NA NA 220 290 330 320 380 Fluoride NA NA < 0.2 < 0.2 < 0.2 < 0.2 < 0.1 Surfactants (MBAS) NA NA < 0.01 < 0.01 < 0.01 < 0.01 < 0.1 Nitrate NA NA 0.11 0.04 0.07 < 0.03 0.13 Nitrite NA NA 0.03 < 0.02 0.02 0.05 < 0.05 pH NA NA 7.4 6.8 7.3 7 7.3 Sulfate NA NA 86 15 49 57 47 frmtd v Table 7 'Historical Monitoring Data for Well MW-13 5/91 9/91 2193 6/93 CATEGORY PARAMETER ( unfilt.) (unfilt.) (unfilt.} (unfilt.) Metals Aluminum 28 56 36 63 (ppm} Arsenic < 0.01 < 0.005 < 0.005 < ("'\ f"'l.f' c v.VV..J Barium < 0.05 < 0.05 0.3 0.4 Beryllium 0.1 0.23 < 0.05 < 0.05 Cadmium < 0.01 < 0.01 < 0.01 < 0.01 Calcium 140 78 120 160 Chromium 0.22 0.36 0.28 0.43 Cobalt 0.07 0.08 <· 0.05 0.07 Copper 0.13 0.16 0.18 0.36 Iron 28 77 52 87 Lead ???? < 0.03 0.09 0.13 Magnesium 60 65 55 80 Manganese 3 1.7 2.2 3 Nickel 0.12 0.22 0.12 0.2 Potassium 5 5.4 5 6.3 Silver 0.01 0.01 0.01 0.01 Sodium 22 9.2 27 31 Vanadium 0.13 0.21 0.18 0.25 Zinc 4 0.96 1 1. 7 Cyanide < 0.01 < 0.01 < 0.01 Base/Neutral Di-n-Butyl Phthalate (ppb) ND ND ND NO Acid Naphthalene (ppb) ND ND ND ND Extractables Bis (2-ethylhexyl) Phthalate (ppb) ND ND ND ND tppb) 1,3-Dichlorobenzene ND ND ND ND N-Nitrosodiphenylamine ND ND ND ND Phenol (ppb) ND ND ND ND 2,4-Dimethylphenol (ppb) ND ND ND ND 1.4-Dichlorobenzene ND ND ND ND Volatile Vinyl Chloride ND ND ND ND Organic Acetone ND ND ND ND Compounds Benzene (ppb) ND ND ND ND (ppb) 1, 1-Dichloroethylene (ppb) ND ND ND ND 1,2-Dichlorobenzene (ppb) ND ND ND ND Ethylbenzene (ppb) ND ND ND ND Methylene Chloride ND ND ND ND Toluene (ppb) ND ND ND ND 1.2.4-Trichlorobenzene (ppb) ND ND ND ND 1, 1, 1-Trichloroethane ND ND ND ND m-Xylene (ppb) ND ND ND ND Xylenes (ppb) ND ND ND ND 1,2-Dichloroethene (total) (ppb} ND ND ND ND Chloroform {ppb) ND ND ND ND 1, 1 Dichloroethane ND ND ND ND Miscellaneous Chloride 65 31 81 NA (ppm) MPN Total Coliforms 170 240 < 10 NA Color 70 60 10 NA Solids 490 460 610 620 Fluoride 'I < 0.2 < 0.2 < 0.1 NA Surfactants (MBAS) < 0.01 < 0.01 < 0.1 NA Nitrate 0.02 < 0.03 < 0.5 NA Nitrite < 0.02 0.05 < 0.5 NA pH 7.7 6.9 7.3 7.3 Sulfate 67 23 30 NA frmtd Table 8 Historical Monitoring Data for Well MW-14 3/07/91 3/21/91 CATEGORY PARAMETER (unfilt.) ( unfilt.) Metals Aluminum 2.6 4.6 (ppm) Arsenic < 0.01 < 0.01 Barium < 0.1 < 0.1 Beryllium 0.04 0.07 Cadmium 0.01 < 0.01 Calcium 16 16 Chromium 0.05 < 0.01 Cobalt 0.03 0.03 Copper 0.04 0.05 Iron 2.1 4.2 Lead < 0.02 < 0.02 Magnesium 7.8 8.4 Manganese 0.36 0.51 Nickel < 0.02 < 0.02 Potassium 1.5 2.8 Silver < 0.01 < 0.01 Sodium 11 11 Vanadium < 0.01 0.02 Zinc 0.02 0.04 Cyanide < 0.01 < 0.01 Base/Neutral Di-n-Butyl Phthalate (ppb) ND ND Acid Naphthalene (ppb) ND ND Extractables Bis (2-ethylhexyl) Phthalate (ppb) ND ND (ppb) 1,3-Dichlorobenzene ND ND N-Nitrosodiphenylamine ND ND Phenol (ppb) ND ND 2,4-Dimethylphenol (ppb) ND ND 1,4-Dichlorobenzene ND ND Volatile Vinyl Chloride ND ND Organic Acetone ND ND Compounds Benzene (ppb) ND ND (ppb) 1, 1-Dichloroethylene {ppb) ND ND 1,2-Dichlorobenzene (ppb) ND ND Ethylbenzene {ppb) ND ND Methylene Chloride ND ND Toluene {ppb) ND ND 1,2,4-Trichlorobenzene (ppb) ND ND 1, 1, 1-T richloroethane ND ND m-Xylene {ppb) ND ND Xylenes (ppb) ND ND 1,2-Dichloroethene (total) (ppb) ND ND Chloroform (ppb) ND ND 1, 1 Oichloroethane ND ND Miscellaneous Chloride 9 8 (ppm) MPN Total Coliforms < 2 < 2 Color 70 > 70 Solids 120 140 fluoride < 0.2 < 0.2 Surfactants (MBAS) ·< 0.01 < 0.01 Nitrate 0.53 0.49 Nitrite < 0.02 < 0.02 pH 6.4 6 Sulfate 50 19 frmtd Table 9 Historical Monitoring Data for Well MW-15 2/93 6/93 CATEGORY PARAMETER (unfilt.) (unfilt.) Metals Aluminum 0.3 0.7 (ppm) Arsenic < 0.005 < 0.005 Barium 0.1 0.2 Beryllium < 0.05 < 0.05 Cadmium < 0.01 < 0.01 Calcium 72 71 Chromium < 0.01 0.02 Cobalt < 0.05 < 0.05 Copper 0.01 0.02 Iron 1.2 2.3 Lead < 0.05 < 0.05 Magnesium 15 13 Manganese 0.81 2.8 Nickel < 0.05 < 0.05 Potassium 6 5.3 Silver < 0.01 < 0.01 Sodium 16 15 Vanadium < 0.05 < 0.05 Zinc 0.11 0.06· Cvanide < 0.01 Base/Neutral Di-n-Butyl Phthalate (ppb) ND ND Acid Naphthalene (ppb) ND ND Extractables Bis (2-ethylhexyl) Phthalate (ppb) ND ND (ppb) 1,3-Dichlorobenzene ND ND N-Nitrosodiphenylamine ND ND Phenol (ppb) ND ND 2,4-Dlmethylphenol (ppb) ND ND 1 4-Dichlorobenzene ND ND Volatile Vinyl Chloride ND ND Organic Acetone ND ND Compounds Benzene (ppb) ND ND (ppb) 1, 1-Dichloroethylene (ppb) ND ND 1,2-Dichlorobenzene (ppb) ND NO Ethylbenzene (ppb) ND ND Methylene Chloride ND ND Toluene (ppb) ND ND 1,2,4-Trichlorobenzene (ppb) ND NO 1, 1, 1-Trichloroethane ND ND m-Xylene (ppb) ND ND Xytenes (ppb) ND ND 1,2-Dichloroethene (total) (ppb) ND ND Chloroform {ppb) ND ND 1, 1 Dichloroethane ND ND Miscellaneous Chloride 12 NA (ppm) MPN Total Coliforms < 1 NA Color 5 NA Solids 310 350 Fluoride -< 0.1 NA Sorfactants (MBAS) NA Nitrate 0.33 NA Nitrite 0.33 NA pH 6.9 7.1 Sulfate 15 NA frmtd Table 10 Historical Monitoring Data for Well MW-16 5/91 9/91 2193 6/93 CATEGORY PARAMETER (unfilt.) (unfilt.) (unfilt.) (unfilt.) Metals Aluminum 3.9 4.1 < 0.1 < 0.1 (ppm) Arsenic < 0.01 < 0 005 < 0.005 < 0.005 Barium < 0.05 < 0.05 < 0.1 < 0.1 Beryllium 0.04 0.05 < 0.05 < 0.01 Cadmium 0.01 < 0.01 < 0.01 < 0.01 Calcium 57 51 44 45 Chromium 0.09 < 0.01 < 0.01 < 0.01 Cobalt < 0.01 < 0.01 < 0.05 < 0.05 Copper 0.07 0.03 < 0.01 < 0.01 Iron 16 4.5 0.49 0.21 Lead 0.03 < 0.03 < 0.05 < 0.05 Magnesium 11 11 10 9.4 Manganese 0.47 0.15 0.13 < 0.05 Nickel 0.02 < 0.02 < 0.05 < 0.05 Potassium 6.5 4 < 5 < 5 Silver < 0.01 < 0.01 < 0.01 < 0.01 Sodium 16 12 14 13 Vanadium < 0.01 < 0.01 0.42 < 0.05 Zinc 0.72 0.22 0.23 0.02 Cyanide < 0.01 < 0.01 < 0.01 Base/Neutral Di-n-Butyl Phthalate (ppb) ND NO ND ND Acid Naphthalene (ppb) ND ND ND ND Extractables Bis (2-ethylhexyl) Phthalate (ppb) ND ND ND ND (ppb) 1,3-Dichlorobenzene ND ND ND ND N-Nitrosodiphenylamine ND ND ND ND Phenol (ppb) ND ND ND ND 2,4-Dimethylphenol (ppb) ND ND ND ND 1 4-Dichlorobenzene ND ND ND ND Volatile Vinyl Chloride ND ND ND ND Organic Acetone ND ND ND ND Compounds Benzene (ppb) ND ND ND ND (ppb) 1, 1-Dichloroethylene (ppb) ND ND ND ND 1,2-Dichlorobenzene (ppb) ND ND ND ND Ethylbenzene (ppb) ND 25 ND ND Methylene Chloride ND ND ND ND Toluene (ppb) ND ND ND ND 1,2,4-Trichlorobenzene (ppb) ND ND ND ND 1, 1, 1-Trichloroethane ND ND ND ND m-Xylene (ppb) ND ND ND ND Xylenes (ppb) ND ND ND ND 1,2-Dichloroethene (total) (ppb) ND ND NO ND Carbon Disulfide NO ND ND ND Chloroform (ppb) ND ND ND ND 1 1 Dichloroethane ND ND ND ND Miscellaneous Chloride 9 9 13 NA (ppm) MPN Total Coliforms 500 220 < 1 NA Color 60 20 10 NA Solids " 220 300 0 370 Fluoride < 0.2 ·< 0.2 < 0.1 NA Surfactants (MBAS) < 0.01 < 0.01 < 0.1 NA Nitrate < 0.02 < 0.03 0.62 NA Nitrite 0.08 < 0.02 < 0.05 NA pH 7,79 7.4 7.9 8 Sulfate 29 34 12 NA Table 11 Historical Monitoring Data for Well MW-17 2193 6/93 CATEGORY PARAMETER (unfitt.) (unfilt.) Metals Aluminum 91 13 (ppm) Arsenic < 0.005 < 0.005 Barium 0.3 0.6 Beryllium < 0.05 < 0.01 Cadmium < 0.01 < 0.01 Calcium 76 120 Chromium 0.22 0.26 Cobalt 0.1 0.13 Copper 22 2.6 Iron 91 130 Lead 0.57 0.71 Magnesium 54 91 Manganese 1.7 2.4 Nickel 0.09 0.14 Potassium 19 13 Silver 0.01 0.01 Sodium 34 34 Vanadium 0.52 0.63 Zinc 0.33 0.49 Cyanide < 0.01 Base/Neutral Di-n-Butyl Phthalate (ppb) NA ND Acid Naphthalene (ppb) NA ND Extractables Bis (2-ethylhexyl) Phthalate (ppb) NA ND (ppb) 1, 3-Dichlorobenzene NA ND N-Nitrosodiphenylamine NA ND Phenol (ppb) NA ND 2,4-Dimethylphenol (ppb) NA ND 1 4-Dichlorobenzene NA ND Volatile Vinyl Chloride NA ND Organic Acetone NA ND Compounds Benzene (ppb) NA ND (ppb) 1, 1-Dichloroethylene (ppb) NA 6 1,2-Dichlorobenzene (ppb) NA ND Ethylbenzene (ppb} . NA ND Methylene Chloride NA ND Toluene (ppb) NA ND 1,2,4-Trichlorobenzene (ppb) NA ND 1, 1, 1-T richloroethane NA ND m-Xylene (ppb) NA ND Xylenes (ppb) NA ND 1,2-Dichloroethene (total) (ppb) NA 38 Chloroform (ppb) NA ND 1 1 Oichloroethane NA ND Miscellaneous Chloride NA NA (ppm) MPN Total Coliforms NA NA Color NA NA Solids NA 1100 F-"luoride NA NA Surfactants (MBAS) NA NA Nitrate NA NA Nitrite NA NA pH NA 6.8 Sulfate NA NA frmtd Table 12 Historical Monitoring Data for Well MW-18 6/93 CATEGORY PARAMETER (unfilt.) Metals Aluminum 44 (ppm) Arsenic < 0.005 Barium 0.3 Beryllium < 0.01 Cadmium < 0.01 Calcium 79 Chromium 0.12 Cobalt < 0.05 Copper 0.16 Iron 49 Lead 0.18 Magnesium 52 Manganese 1.4 Nickel 0.08 Potassium 35 Silver < 0.01 Sodium 21 Vanadium 0.13 Zinc 4.9 Cyanide < 0.01 Base/Neutral Di-n-Butyl Phthalate (ppb) ND Acid Naphthalene (ppb) ND Extractables Bis (2-ethylhexyl) Phthalate (ppb) ND (ppb) 1,3-Dlchlorobenzene ND N-Nitrosodiphenylamine ND Phenol (ppb) ND 2.4-Dimethylphenol (ppb) ND 1.4-Dichlorobenzene ND Volatile Vinyl Chloride ND Organic Acetone 11 B Compounds Benzene (ppb) ND (ppb) 1, 1-Dichloroethylene (ppb) ND 1,2-Dichlorobenzene (ppb) ND Ethylbenzene (ppb) ND Methylene Chloride ND Toluene (ppb) 6 1,2.4-Trichlorobenzene (ppb) ND 1, 1, 1-Trichloroethane ND m-Xylene (ppb) ND Xylenes (ppb) ND 1,2-Dichloroethene (total) (ppb) ND Chloroform (ppb) ND 1, 1 Dichloroethane ND Miscellaneous Chloride 25 (ppm) MPN Total Coliforms > 1000 Color 60 'I Solids 520 Fluoride < 0.1 Surfactants (MBAS) < 0.1 Nitrate < 0.05 Nitrite 0.07 pH 7.7 Sulfate 45 TABLE 4.2 {Page 1 of 11} HISTORICAL GROUNDWATER SAMPLE RESULTS HONBARRiER~ INC. CHARLOTTE, NORTH CAROLINA . ANALYTICAL RESULTS FOR MW-6 COMPOUNDS DL 9/27/94 12/20/94 3/2/95 9/18/95 3/21 /96 5/8/97 12/19/97 4/28/98 Volatile (ug/L) Methylene Chloride 5.0 BDL BDL BDL 2.7JTV BDL BDL BDL BDL Semi-Volatile {ug/L) Bis{2-ethylhexyl) phthalate 10.0 BDL 140V BDL BDL BDL BDL BDL BDL Metals (mg/L) Aluminum 0.1 11.2 7.34 1.58 0.849 0.341 21 1.5 0.68 Barium 0.01 0.134 0.112 0.901 0.109 0.0838 BDL 0.077 0.091 Calcium 0.1 41.4 37 39.8 42.5 37.4 30 33 39 Chromium 0.01 0.0196 0.01 55 0.0029J BDL BDL .04 BDL BDL Cobalt 0.01 0.0086J 0.0074J BDL BDL BDL BDL BDL BDL Copper 0.01 0.059 0.0328 0.0054J BDL BDL .104 0.020 BDL Iron 0.05 10.2 6.58 1.08 0.904 0.345 14 1. 5 0.88 Lead 0.005 0.0086 0.0068 0.0027J BDL BDL BDL BDL BDL Magnesium 0.2 27 23.3 23.3 26.2 24.4 21 16 21 Manganese 0.01 0.168 0.125V 0.0111 0.0122 0.0058J .384 0.039 0.015 Mercury 0.0002 0.000047J BDL BDL 0.000043J BDL BDL BDL BDL Potassium 1.0 2.83J 2.02J 3.34J 1.8J 1.73J BDL 3.1 2.5 Sodium 0.2 27 24.2V 24.2 26.8 28.6 26 19 26 Vanadium 0.01 0.0516 0.0277 0.0074J 0.0089J 0.0039J .06 0.01 BDL Zinc 0.01 0.0279 0.0238J 0.1168 0.0201 0.0277 .06 0.24 0.23 TABLE 4.2 (Page 2 of 11) HISTORICAL GROUNDWATER SAM.PLE RESULTS HON BARRIER~ INC. ·•· :: . : CHARLOTTE, NORTH CAROLINA ·: './.:·:-::.':< : : :ANALYTICAL RESULTS FOR MW-7 > ,":·· .: COMPOUNDS :. DL 9/27/94 12/20/94 3/2/95 9/18/95 3/21/96 5/8/97 12/19/97 4/28/98 Volatile !~g/l) Benzene 5 190 84 31 98 60 96 25 28 Chlorobenzene 5 180 240 300 300 240 630 110 180 cis-1, 2-Dichlorethene 5 200 35 47 120 35 430 250 280 1,3-0ichlorobenzene 5 BOL BDL BDL BOL BDL BOL 5.1 BOL 1 ,4-0ichlorobenzene 5 BDL BDL BDL BDL BDL BOL 29 46 Ethyl benzene 5 260 47 19 96 47 39 BDL BDL Toluene 5 29 BDL BDL 12V BDL i 7 BDL BDL Trichloroethene 5 40 4.6J BDL 12 4.6J 13 BDL BDL Vinyl Chloride 10 110 13 20 58 13 160 160 100 Xylenes, Total 5 670 190 15 68 190 14 BDL BDL Semi-Volatile (gg/Ll 1,2,4-Trichlorobenzene 10 BOL BDL BDL BDL 26 BDL BDL 13 1 , 3-Dichlorobenzene 10 3.5J BDL BDL BDL 8.3J BDL 5.1 BDL 1 ,4-Dichlorobenzene 10 29 28J 44J 12J 130 83 29 33 2,4-Dimethylphenol 10 28 8.6J BDL BOL BOL SOL SOL SOL 2-Methylnaphthalene 10 4J SOL SOL BOL SOL SOL BDL SOL 4-Chloroaniline 20 6.8J BOL BDL SDL BOL BOL BDL BDL Bis(2-Ethylhexyl) phthalate 10 SOL SOL BDL BDL SOL 22 SOL 19 Di-n-butyl phthalate 10 SOL 51V BDL 60 BDL BDL BDL BDL Naphthalene 10 16 6.2J BDL SOL BDL BDL BDL BDL -···= TABLE 4.2 (Page S of 11} HISTORICAL GROUNDWATER SAMPLE RESULTS HONBARRIEF( INC. ' ,,, CHARLOTIE~ NORTH CAROLINA _ANALYTICAL RESULTS FOR MW-13 COMPOUNDS DL 3/2./95, 9/18195 4/28198 9/27/94 12/20/94 3/21/96 5/8/97 12/19/97 Volatile {k{g/L) 1 , 1-Dichloroethane 5 6 5 4.4J BDL 6.8 10 16 9.6 1 , 1-Dichloroethene 5 3.5J 2.4J BDL BDL 5.1 BDL 13 6.9 -- Benzene 5 BDL BDL BDL BDL 1.3J BDL BDL BDL -- Chlorobenzene 5 1.9J 1.6JD 2.2J BDL 9.5 12 13 15 -- 1 ,4-Dichlorobenzene 5 BDL BDL BDL BDL BDL BDL 6.4 6.8 -- cis-1,2-Dichlorethene 5 18 16 18 1.5J 110 130 150 140 -- trans-1,2-Dichloroeth me 5 BDL BDL BDL BDL 1J BDL BDL BDL -- Trichloroethene 5 5 3.2J 3.4J BDL 3.8J BDL 6 BDL -- Vinyl Chloride 10 3.3J 2.2J 2.5J BDL 17 18 36 29 ---- Semi-Volatile (k{g{L) Bis(2-ethyhexyl) phthJlate 10 13 19V BDL BDL BDL BDL BDL BDL Di-n-butyl phthalate 10 BDL BDL BDL 36J BDL BDL BDL BDL .· ... TABLE 4.2 {Page 9 of 11) < HISTORICAL GROUNDWATER SAMPLE RESULTS . HONBARRIER, INC. CHARLOTIE, NORTH CAROLINA ANALYTICAL RESULTS FOR MW-13 (Con't) COMPOUNDS DL 9/27/94 12/20/94 3/2/95 9/18/95 3/21/96 5/8/97 12/19/97 4/28/98 Metals (mg/L) Aluminum 0.1 3,740 4,710 4,310 1,800 1 .4 1.3 0.83 0.99 Barium 0.01 0.156 0.128 0.127 0.167 0.158 .3 0.18 0.20 Calcium 0.1 159 136 133 162 152 160 140 140 Chromium 0.01 0.0272 0.0417 0.0268 0.010 0.0102 BDL 0.011 0.011 Cobalt 0.01 BDL BOL BOL SOL 0.007 j SOL SOL BDL Copper 0.01 0.0228 0.0208 0.0156 0.0152 0.0227 .05 0.016 0.021 Iron 0.05 4.97 6.9 5.42 2.17 2.3 4.4 1.4 2.2 Lead 0.005 0.0037 0.003J 0.0032J BOL BOL BDL SOL BDL Magnesium 0.2 45.5 38.8 40.5 44.9 444 45.8 46 42 Manganese 0.01 2.37 1.96V 2.01 2.55 2.8 3.63 3.6 3.5 Nickel 0.04 SOL 0.021J NA 0.0134J 0.014J SOL BOL 0.008 ·- Potassium 1.0 5.97 6.03 5.37 5.53 5.54 5 6.4 6.0 Sodium 0.2 37.2 34.5V 43.3 47.7 48.2 46 45 48 Thallium 0.002 SOL BOL BDL 0.0058 0.0046J SOL BDL SOL Vanadium 0.01 0.0143 0.0081 J 0.0159 0.0114 0.0076J BDL BOL BOL Zinc 0.01 0.113 0.128V 0.0913 0.0496 0.075 .4 0.036 0.029