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Home My WebLink About10036_South End Transit_Bell Property - Phase II Report FINAL-OCR DELIVERING SUSTAINABLE SOLUTIONS IN A MORE COMPETITIVE WORLD Phase II Environmental Site Assessment Bell Property 140 Remount Road Charlotte, North Carolina December 2006 ERM NC, PC 8000 Corporate Center Drive Suite 200 Charlotte, North Carolina 28226 www.erm.com Cherokee Investment Partners Phase II Environmental Site Assessment Bell Property 140 Remount Road Charlotte, Mecklenburg County, North Carolina December 2006 Project No. 55685 ________________________________ Alan Martin, P.G. Project Manager _________________________________ Thomas M. Wilson, P.G. Principal-In-Charge ERM NC, PC 8000 Corporate Center Drive Suite 200 Charlotte, North Carolina 28226 (704) 541-8345 (702) 541-8416 (fax) http://www.erm.com ERM NC, PC i REMOUNT ROAD PHASE II REPORT FINAL.DOC TABLE OF CONTENTS 1.0 INTRODUCTION 1 1.1 BACKGROUND 1 2.0 PHASE II ASSESSMENT ACTIVITIES 2 3.0 ASSESSMENT RESULTS 5 4.0 SUMMARY AND CONCLUSIONS 7 LIST OF FIGURES Figure 1 Topographic Site Location Map Figure 2 Site Layout Map Figure 3 Soil Sample Results Map Figure 4 Groundwater Sample Results Map LIST OF TABLES Table 1 Monitor Well Construction Table 2 Soil Sample Analytical Results Table 3 Groundwater Sample Analytical Results LIST OF APPENDICES APPENDIX A: Soil Boring Logs APPENDIX B: Laboratory Analytical Data Sheets ERM NC, PC 1 REMOUNT ROAD PHASE II REPORT FINAL.DOC 1.0 INTRODUCTION On October 16 through 18, 2006, ERM NC, PC (ERM) performed a Phase II Environmental Site Assessment (ESA) on behalf of Cherokee Investment Partners at the Bell property (hereafter referred to as “the subject site“ or “the subject property”) located at 140 Remount Road, in Charlotte, Mecklenburg County, North Carolina. The purpose of the Phase II site investigation was to investigate potential areas of concern identified during a previous Phase I ESA of the site conducted by ERM in October 2005, as discussed below. 1.1 BACKGROUND A Phase I ESA was conducted by ERM at the subject property in October 2005. As indicated in the Phase I report, the property was most recently occupied by Colorcraft Printing Company (1996 to 2004) with the two story office tower leased to Action Staffing. Prior to 1996, the facility was owned by The Pritchard Corporation and operated as Pritchard Paint and Glass. The Pritchard Corporation constructed the facility in 1960 and retained operations on-site until mid-1995. Prior to development by the Pritchard Company the site was undeveloped. The location of the subject property is presented on Figure 1. Figure 2 presents the current site layout. The Phase I ESA identified the following potential environmental concerns: • A fuel oil underground storage tank (UST), located adjacent to the boiler room on the east side of the facility building, was closed in place in the early 1980s. This UST was not listed in the regulatory database search. No further information regarding the closure or size of this tank is available. Because of the lack of information on this fuel oil UST and potential releases, the fuel oil UST is a potential environmental concern. • A former fuel oil aboveground storage tank (AST) was present east of the boiler room. Any undocumented spills from this AST may have affected soil or groundwater quality in this area. • Significant equipment maintenance activities were previously conducted in the maintenance building at the north side of the property. It is possible that undocumented spills of petroleum hydrocarbons or degreasing compounds may have affected soil or groundwater quality in this area. Intermittent staining was observed ERM NC, PC 2 REMOUNT ROAD PHASE II REPORT FINAL.DOC in the asphalt paved parking area. This area was paved in approximately 1997 when Colorcraft obtained the facility. • Based on the long-term storage of turpentine and varsol at the subject property by the Pritchard Paint and Glass Company, it is possible that undocumented releases of these solvents may have affected soil or groundwater quality beneath the subject property. • Several properties within a ¼ mile radius of the subject site were listed in the database search as sites with documented groundwater or soil contamination. The topography and suspected regional shallow groundwater flow direction indicates contamination from these site should migrate away from the subject site, however, there is potential for off-site contamination to adversely impact the subject site. 2.0 PHASE II ASSESSMENT ACTIVITIES On October 16, 2006, ERM supervised the installation of five direct push (Geoprobe®) soil borings. Three of the direct push soil borings were converted to temporary monitor wells for purposes of collecting groundwater samples and identifying the depth to the water table. Three soil samples (RR-SB-1 through RR-SB-3) and three groundwater samples (RR-GW-2, RR-GW-4, and RR-GW-5) were collected and submitted for laboratory analysis. The direct push soil borings and temporary monitor wells were installed by Probe Technology, Inc. of Concord, North Carolina, using direct push, or Geoprobe® drilling and sampling equipment. The direct push sampling method uses a small truck or all terrain vehicle mounted hydraulic jack mechanism to drive a 2-inch diameter hollow steel probe (macro-core) with a polyethylene soil-sampling sleeve into the ground to the desired depth prior to sampling. Using the macro-core sampler, soil samples were collected continuously until the target soil sampling depth was reached or refusal was met. All downhole sampling equipment was cleaned via a high-temperature/high-pressure water wash (steam cleaner) before and between each boring. Soils were logged in the field by an ERM geologist and screened for the presence of volatile organic compounds (VOCs) via a photo-ionization detector (PID) and the headspace field screening method. Soil boring logs and field screening data and can be referenced in Appendix A. Soil samples intervals for laboratory analyses were chosen based on PID ERM NC, PC 3 REMOUNT ROAD PHASE II REPORT FINAL.DOC readings, visual and olfactory observations and the suspected depth of the potential concern. Soil borings RR-SB-1 and RR-SB-2 was advanced along the southeastern wall of the site structure in the area of the UST and boiler to assess potential impacts to soil and groundwater in this area. A soil sample was collected at approximately 0.25 to 2 feet below ground surface at RR-SB-1 and 2 to 4 feet at RR-SB-2. A third soil boring (RR-SB-3) was advanced adjacent to the former vehicle maintenance building. A soil sample was collected from 2 to 4 feet below ground surface at this location. Two additional soil borings (RR-SB-4 and RR-SB-5) were advanced along the northwestern property boundary for the purpose of assessing potential impacts to groundwater from off-site sources. In general, the shallow soils at the site were comprised of clayey silts grading to fine sandy silts at depth. Soil samples were placed in laboratory-supplied sample containers and then placed in a cooler with ice for storage and delivery to Prism Laboratories of Charlotte, North Carolina for analyses. ERM and Prism Laboratories adhered to appropriate chain-of-custody procedures. Soil samples RR-SB-1 and RR-SB-2 were analyzed for diesel range organics (DRO) and gasoline range organics (GRO) by Method 8015B. Soil sample RR-SB-3 was analyzed for: VOCs by Method 8260, Metals by EPA Methods 6010B and 7471, and semi-volatile organic compounds (SVOCs) by Method 8270. Following the completion of soil sample collection where applicable, temporary monitor wells were installed in the RR-SB-2, RR-SB-4, and RR-SB-5 borings. The temporary monitor wells were installed at depths of 9 feet below ground surface in boring RR-SB-2 and 14 feet at RR-SB-4 and RR-SB-5. These depths represent where the direct push probe encountered saturated soil for groundwater sampling. Each temporary monitor well was installed with 1-inch diameter PVC well screen and riser, filter sand and bentonite seal in general accordance with North Carolina Well Construction Standards (15A NCAC 2C). Each well was fitted with locking, expandable well caps. Following construction, all new monitor wells were developed by purging a minimum of five well bore volumes from the well utilizing a combination of a new, disposable bailer and previously decontaminated peristaltic pump. After development, all monitor wells were sampled using low-flow sampling methods to minimize turbidity present in the samples and to minimize the volume of groundwater potentially requiring special handling and disposal procedures. Prior to purging and sampling, depth-to- ERM NC, PC 4 REMOUNT ROAD PHASE II REPORT FINAL.DOC groundwater data were recorded for each monitor well. Monitor well construction details and groundwater elevation data are presented in Table 1. The depth-to-groundwater ranged from 16.2 feet below ground surface in RR-GW-4 to 18.7 feet in RR-GW-5. Based on the groundwater elevation data and local land surface topography, the groundwater flow direction beneath the subject property appears to be to the southwest toward the Remount Road/Dunavant Street intersection. Groundwater samples collected from temporary monitor wells RR-GW-4 and RR-GW-5 were analyzed for VOCs by Method 8260B and Metals by Methods 6010B and 7471. The groundwater sample collected from the temporary monitor well RR-GW-2 was analyzed for VOCs by Method 8260B and SVOCs by Method 8270. Samples collected from each temporary well were labeled with an identification of GW, i.e., the sample collected and labeled RR-GW-2 is the groundwater from the boring labeled RR-SB-2. ERM NC, PC 5 REMOUNT ROAD PHASE II REPORT FINAL.DOC 3.0 ASSESSMENT RESULTS Soil analytical results are summarized in Table 2 and groundwater analytical results are summarized in Table 3. Sample locations and analytical results are illustrated in Figures 3 and 4 for soil and groundwater, respectively. Soil boring logs including field screening values are presented in Appendix A. The laboratory analytical data reports are presented in Appendix B. For comparison purposes, the soil results are compared to the North Carolina Department of Environment and Natural Resources (NCDENR) Division of Water Quality – Aquifer Protection Section’s Soil-to- Groundwater Cleanup Levels, Division of Waste Management (DWM) UST Section’s Maximum Soil Contaminant Concentrations (MSCCs) or Division of Waste Management – Superfund Section’s Inactive Hazardous Sites Branch Remediation Goals (IHSB RG) levels. ERM also compared the metals concentrations in soils to the common range of naturally occurring metals in soils, as published in EPA’s Hazardous Waste Land Treatment, SW- 874, Table 6.46, dated April 1983. Also presented for comparison purposes are naturally occurring concentrations of common metals in the eastern United States as reported by the United States Geological Survey (USGS). These values are shown in Table 2 of this report, as applicable. Groundwater analytical results are compared to the North Carolina Groundwater Standards (NC 15A NCAC 2L 0.0202(g)) which are identified in Table 3. Soils Soil samples (RR-SB-1 and RR-SB-2) were submitted to the laboratory for diesel range organics and gasoline range organics analyses. Diesel range organics were detected in the RR-SB-1 soil sample at 370 milligrams per kilogram (mg/kg). The NCDENR DWM UST Section’s action level for diesel range organics is 10 mg/kg. No GRO was detected in either soil sample. Soil sample RR-SB-3 was submitted to the laboratory for VOC, SVOC, and metals analyses. No VOCs or SVOCs were detected in the sample. Low concentrations of metals were detected in the soil sample. Chromium (total) was detected at 47 mg/kg which is in excess of the NCDENR Aquifer Protection Section’s Cleanup Level and DWM UST Section’s MSCC of 27 mg/kg for this naturally occurring mineral. No potential source of chromium has been identified in this area and the concentration detected in the RR-SB-2 soil is within the range of naturally occurring concentrations in Piedmont soils. No other metals were detected at levels above the applicable Clean-Up Levels. ERM NC, PC 6 REMOUNT ROAD PHASE II REPORT FINAL.DOC Groundwater The groundwater levels in temporary monitor wells RR-GW-2, RR-GW-4, and RR-GW-5 ranged from 16.2 to 18.7 feet below ground surface. Groundwater samples collected from the temporary wells RR-GW-4 and RR-GW-5 were submitted to the laboratory for VOC and metals analyses. Xylene, toluene, and 1,3-dichlorobenzene were detected in RR-GW-5 at levels below the applicable North Carolina Groundwater Standards. No other VOCs were detected in these groundwater samples. No on site source of the VOCs detected in the groundwater at the subject property has been identified. Low concentrations of mercury, barium, chromium, and lead were detected in the groundwater samples in concentrations below the applicable North Carolina Groundwater Standards. No on-site source of these metals has been identified at the subject property. These metals were detected in the site soils and their presence in the groundwater samples may be attributed to their natural occurrence in site soils. The groundwater sample collected from the temporary well RR-GW-2 was submitted to the laboratory for VOC and SVOC analysis. No VOCs or SVOCs were detected in this groundwater sample. 4.0 SUMMARY AND CONCLUSIONS On October 16-18, 2006, ERM conducted a Phase II ESA to evaluate subsurface conditions at the Bell property located at 140 Remount Road, Charlotte, Mecklenburg County, North Carolina. A summary of the findings of the Phase II ESA is provided below. Three soil samples were collected via direct push methods to evaluate soil quality at the subject property. Diesel range organics were detected in one sample at 370 mg/kg which exceeds the NCDENR UST Section Action Level of 10 mg/kg. This sample was collected adjacent to the closed-in-place UST located along the southeast corner of the building. The elevated concentration of DRO reported in this soil sample indicates that a release of petroleum hydrocarbons has occurred in the vicinity of the former heating oil UST. These data should be presented to the owner/ operator of the UST for submittal to the NCDENR UST Section for their review. Additional soil sampling in the vicinity of the former UST may be required by NCDENR to evaluate the horizontal and vertical extent of the petroleum-affected soil. Chromium was detected in one sample at 47 mg/kg which slightly exceeds the NCDENR Aquifer Protection Section’s Cleanup Level and DWM UST Section’s MSCC of 27 mg/kg. No potential source of chromium has been identified in this area and the detected concentration is within the range of naturally occurring concentrations of chromium in Piedmont soils. No additional investigation or remediation of the chromium detected in the soil in this area is warranted. No other metals, VOCs, DRO, or GRO were identified in excess of applicable NCDENR Cleanup Levels. Three groundwater samples were collected from temporary monitor wells installed at the soil boring locations. The groundwater flow direction beneath the site appears to be to the southwest. No VOCs, SVOCs or metals were detected in the groundwater samples in excess of the North Carolina Groundwater Standards. ERM NC, PC 7 REMOUNT ROAD PHASE II REPORT FINAL.DOC Figures Source: Charlotte East, NC 7.5 Minute Topographic Quadrangle; 1988; Contour Interval = 10 feet Figure ERM NC, PC CHARLOTTE, NORTH CAROLINA BELL PROPERTY 140 REMOUNT ROAD SITE LOCATION MAP 1 0 0.1 0.2 0.3 0.4 0.5 mi SITE Not To Scale FIGURE ERM NC, PC 3CHARLOTTE, NORTH CAROLINA SOIL SAMPLE LOCATIONS & RESULTS BELL PROPERTY 140 REMOUNT ROAD Former UST Location Closed in Place UST Former Vehicle Maintenance Building Property Line RR-SB-1 (Depth in Feet) RG Detected soil contaminant concentrations in mg/kg with regulatory standards (Maximum Soil Contaminant Concentrations). Concentrations above regulatory standards shown in bold font. RR-SB-1 (0.25-2) RG Diesel Range Organics 370 10 Gasoline Range Organics ND 10 RR-SB-2 (2-4) RG Diesel Range Organics ND NE Gasoline Range Organics ND NE Soil Sample Location ND Not Detected NE Not Established RR-SB-3 (2-4) RG Metals Arsenic Barium Cadmium Chromium Lead Silver Mercury VOCs SVOCs 0.51J 30 1.8 47 18 0.089J 0.048 ND ND NE 848 NE 27 270 NE NE NE NE Not To Scale FIGURE ERM NC, PC 4CHARLOTTE, NORTH CAROLINA GROUNDWATER SAMPLE LOCATIONS & RESULTS BELL PROPERTY 140 REMOUNT ROAD RR-GW-1 Results Summary 2L STD Detected groundwater contaminant concentrations in µg/L with regulatory standards. Concentrations above regulatory standards shown in bold font. VOCs Metals Mercury Barium Chromium Lead All other metals RR-GW-4 2L STD ND 0.15 0.260 4.1 3.4 ND NE 1.05 2,000 50 15 NE VOCs 1,3-Dichlorobenzene Xylenes Toluene All other VOCs Metals Mercury Barium Chromium Lead RR-GW-5 2L STD 2.5 0.66 J 1.1 ND 0.09 J 9.4 19 3.3 J 170 530 1,000 NE 1.05 2,000 50 15 RR-GW-2 2L STD VOCs SVOCs ND ND NE NE Groundwater Sample Location ND Not Detected NE Not Established Former UST Location Closed in Place UST Former Vehicle Maintenance Building Property Line Tables TA B L E 1 MO N I T O R W E L L C O N S T R U C T I O N BE L L P R O P E R T Y 14 0 R E M O U N T R O A D CH A R L O T T E , M E C K L E N B U R G C O U N T Y , N O R T H C A R O L I N A Mo n i t o r We l l I D Da t e In s t a l l e d Da t e W a t e r Le v e l Me a s u r e d We l l C a s i n g De p t h (f e e t B G S ) Sc r e e n e d In t e r v a l (f e e t B G S ) Bo t t o m o f We l l (f e e t B G S ) Gr o u n d Su r f a c e Ele v a t i o n (f e e t ) To p - o f - C a s i n g El e v a t i o n (f e e t ) De p t h t o Wa t e r (f e e t B G S ) De p t h t o Wa t e r (f e e t B T O C ) Gr o u n d w a t e r Ele v a t i o n (f e e t ) Fr e e Pr o d u c t Th i c k n e s s (f e e t ) Comments RR - G W - 2 1 0 / 1 6 / 0 6 1 0 / 1 8 / 0 6 9 9- 2 4 2 4 9 6 . 6 9 9 8 . 2 4 1 7 . 1 8 1 8 . 7 3 7 9 . 5 1 N o n e 1 - i n c h P V C t e m p o r a r y m o n i t o r w e l l RR - G W - 4 1 0 / 1 6 / 0 6 1 0 / 1 8 / 0 6 1 4 1 4 - 2 4 2 4 9 5 . 7 7 9 7 . 4 7 1 6 . 2 0 1 7 . 9 0 7 9 . 5 7 N o n e 1 - i n c h P V C t e m p o r a r y m o n i t o r w e l l RR - G W - 5 1 0 / 1 6 / 0 6 1 0 / 1 8 / 0 6 1 4 1 4 - 2 4 2 4 9 7 . 2 0 9 7 . 4 5 1 8 . 6 7 1 8 . 9 2 7 8 . 5 3 N o n e 1 - i n c h P V C t e m p o r a r y m o n i t o r w e l l El e v a t i o n s r e f e r e n c e d t o t e m p o r a r y b e n c h m a r k a s s i g n e d a n e l e v a t i o n o f 1 0 0 . 0 0 f e e t a b o v e m e a n s e a l e v e l . Te m p o r a r y b e n c h m a r k l o c a t e d a t t o p - o f - c a s i n g o f t e m p o r a r y m o n i t o r w e l l S B - G W - 2 / S B - S B - 2 l o c a t e d a t 2 5 0 8 / 2 5 2 2 S o u t h B o u l e v a r d TA B L E 2 SO I L S A M P L E A N A L Y T I C A L R E S U L T S BE L L P R O P E R T Y 14 0 R E M O U N T R O A D CH A R L O T T E , M E C K L E N B U R G C O U N T Y , N O R T H C A R O L I N A Sa m p l e I D D a t e De p t h (f e e t B G S ) Arsenic Barium Cadmium Chromium LeadSilver RR - S B - 1 1 0 / 1 6 / 0 6 0 . 2 5 ' - 2 ' 3 1 . 3 37 0 ND -- - - -- - - - - - - - - - - - - RR - S B - 2 1 0 / 1 6 / 0 6 2 ' - 4 ' < 1 N D N D -- - - -- - - - - - - - - - - - - RR - S B - 3 1 0 / 1 6 / 0 6 2 ' - 4 ' - - - - - - N D N D 0 . 5 1 J 3 0 1 . 8 47 18 0 . 0 8 9 J 0 . 0 4 8 10 1 0 N E N E N E 8 4 8 N E 2 7 2 7 0 N E N E 40 1 0 N E N E N E 8 4 8 N E 2 7 2 7 0 N E N E NE N E N E N E 0 . 3 9 0 5 , 3 7 5 3 7 . 0 2 1 1 4 0 0 3 9 1 6 . 1 1 NE N E N E N E 1 . 5 9 6 6 , 5 7 7 4 5 1 4 4 8 8 0 0 5 , 1 1 0 6 1 . 6 Na t u r a l l y O c c u r r i n g M e t a l s C o n c e n t r a t i o n 4 - M e a n -- - - - - - - 4 . 8 2 9 0 N E 3 3 1 4 N E 0 . 0 8 1 Na t u r a l l y O c c u r r i n g M e t a l s C o n c e n t r a t i o n 4 - R a n g e -- - - - - - - < 0 . 1 - 7 3 1 0 - 1 , 5 0 0 N E 1 - 1 , 0 0 0 < 1 0 - 3 0 0 N E 0 . 0 1 - 3 . 4 Tr a c e E l e m e n t C o n t e n t o f N a t u r a l S o i l s 5 - A v e r a g e -- - - - - - - 5 4 3 0 0 . 0 6 1 0 0 1 0 0 . 0 5 0 . 0 3 Tr a c e E l e m e n t C o n t e n t o f N a t u r a l S o i l s 5 - R a n g e -- - - - - - - 1 - 5 0 1 0 0 - 3 , 0 0 0 0 . 0 1 - 0 . 7 1 - 1 , 0 0 0 2 - 2 0 0 0 . 0 1 - 5 0 . 0 1 - 0 . 3 On l y d e t e c t e d c o m p o u n d s a r e s h o w n i n t a b l e J - E s t i m a t e d v a l u e b e t w e e n R e p o r t i n g L i m i t a n d M e t h o d D e t e c t i o n L i m i t mg / k g = M i l l i g r a m s p e r k i l o g r a m 1 - N C D E N R U S T S e c t i o n A c t i o n L e v e l BG S = B e l o w g r o u n d s u r f a c e 2 - N C D E N R A q u i f e r P r o t e c t i o n S e c t i o n C l e a n U p L e v e l ND - N o t D e t e c t e d a t M e t h o d D e t e c t i o n L i m i t 3 - E P A R e g i o n 9 P r e l i m i n a r y R e m e d i a t i o n G o a l NE = N o t e s t a b l i s h e d 4 - U S G S P r o f e s s i o n a l P a p e r 1 2 7 0 " E l e m e n t a l C o n c e n t r a t i o n s I n S o i l s a n d S u r f i c i a l M a t e r i a l s o f t h e C o n t e r m i n o u s - - = N o t A n a l y z e d U n i t e d S t a t e s " , H . T . S h a c k l e t t e a n d J . G . B o e r n g e n , 1 9 8 4 . V a l u e s f o r E a s t e r n U n i t e d S t a t e s p r e s e n t e d TP H = T o t a l P e t r o l e u m H y d r o c a r b o n s 5 - B a c k g r o u n d c o n c e n t r a t i o n s o f m e t a l s p e r T a b l e 6 . 4 6 o f E P A S W - 8 7 4 , p a g e 2 7 3 . Re s u l t s s h o w n i n b o l d e x c e e d R G l e v e l s o r S o i l - G r o u n d w a t e r C l e a n u p L e v e l , w h e r e a p p l i c a b l e EP A R e g i o n 9 P R G I n d u s t r i a l / C o m m e r c i a l 3 NC D E N R U S T S e c t i o n A c t i o n L e v e l 1 So i l - G r o u n d w a t e r C l e a n u p L e v e l 2 EP A R e g i o n 9 P R G R e s i d e n t i a l 3 Field Screening Volatile organic compounds - ppm (PID) ME T A L S M e t h o d 6 0 1 0 B ( m g / k g ) MERCURY by EPA Method 7471 (mg/kg) Volatile Organic Compounds Method 8260 (mg/kg) Semi-Volatile Organic Compounds Method 8270 (mg/kg) Diesel Range Organics (DRO) TPH Method 8015B (mg/kg) Gasoline Range Organics (GRO) TPH Method 8015B (mg/kg) TA B L E 3 SU M M A R Y O F G R O U N D W A T E R S A M P L I N G R E S U L T S BE L L P R O P E R T Y 14 0 R E M O U N T R O A D CH A R L O T T E , M E C K L E N B U R G C O U N T Y , N O R T H C A R O L I N A Sa m p l e ID D a t e RR - G W - 2 1 0 / 1 8 / 0 6 N D N D N D N D N D - - - - - - N D -- RR - G W - 4 1 0 / 1 8 / 0 6 N D N D N D N D - - 2 6 0 4 . 1 J 3 . 4 J N D 0 . 1 5 J RR - G W - 5 1 0 / 1 8 / 0 6 2 . 5 0 . 6 6 J 1 . 1 N D - - 9 4 1 9 3 . 3 J N D 0 . 0 9 J NC 2 L G r o u n d w a t e r S t a n d a r d 1 7 0 5 3 0 1 , 0 0 0 N E NE 2, 0 0 0 5 0 15 NE 1 . 0 5 On l y d e t e c t e d c o m p o u n d s a r e s h o w n i n t a b l e NE = N o t e s t a b l i s h e d µg / L = M i c r o g r a m s p e r l i t e r - - = N o t A n a l y z e d BG S = B e l o w g r o u n d s u r f a c e J - E s t i m a t e d v a l u e b e t w e e n R e p o r t i n g L i m i t a n d M e t h o d D e t e c t i o n L i m i t ND - N o t D e t e c t e d a t M e t h o d D e t e c t i o n L i m i t Re s u l t s s h o w n i n b o l d e x c e e d N o r t h C a r o l i n a G r o u n d w a t e r S t a n d a r d ( 2 L ) 1,3-Dichlorobenzene Xylenes Toluene Chromium All Other Compounds SEMI VOLATILE ORGANIC COMPOUNDS Method 8270 (µg/L) VO L A T I L E O R G A N I C C O M P O U N D S b y E P A 8 2 6 0 B ( µ g / L ) MERCURY by EPA Method 7471 (µg/L) Barium Lead ME T A L S Me t h o d 6 0 1 0 B ( µ g / L ) All Other Compounds Appendix A Soil Boring Logs Stratigraphy Legend Abbreviations Asphalt/Gravel HA - Hand auger silty CLAY GP - Geoprobe clayey SILT TD - Total Depth of Boring silty SAND BGS - Below Ground Surface clayey SAND DTW- Depth to Water sandy SILT - Designates location of soil sample for lab analysis CLAY SILT Water table level Logged by:Thomas Fisher - ERM Boring I.D. Depth Interval (feet) VOCs (ppm)Gr a p h i c L o g Sample Description RR-SB-1 0-0.25 31.3 Asphalt 10/16/2006 0.25-4 3.1 Red to orange CLAY fill odor 0-4' HA 4-5.5 <0.1 Brown clayey SILT loose to slightly plastic, dry 4'-16' GP 5.5-10 <0.1 Red clayey SILT slightly plastic, dry manganese deposits <0.1 10-16 <0.1 Brown fine sandy SILT slightly plastic at 15.5, manganese deposits, saprolite <0.1 <0.1 Boring terminated at 16' BGS. RR-SB-2 0-0.25 <0.1 Asphalt 10/16/2006 0.25-2 <0.1 Red CLAY fill slightly plastic, dry, manganese deposits 0-4' HA 2-4 <0.1 Red clayey SILT with manganese deposits, dry and slightly plastic. 4'-24' BGS <0.1 Lt. Brown SILT, dry, loose, large manganese deposits <0.1 Grey to brown fine sandy SILT, slightly moist, loose, large manganese deposits <0.1 saprolitic, micaceous Screen <0.1 Interval <0.1 brown SILT with sand, saprolitic, becoming moist at 14' 9'-24' 16-24 <0.1 Brown fine sandy SILT manganese deposits, saturated <0.1 Boring terminated at 20' BGS and the well installed at 24' BGS. DTW = 18.73 on October 18, 2006. RR-SB-3 0-5 <10 Red CLAY 10/16/2006 <10 0-4 HA 5-10 <10 Red silty SAND 4-10 GP <10 <10 SOIL BORING LOGS - 140 Remount Rd., Charlotte, Mecklenburg County, North Carolina Mo n i t o r W e l l Soil sample collected at 1' bgs 140 Remount Rd boring.xls:Boring Log Page 1 of 2 12/27/2006 Boring I.D. Depth Interval (feet) VOCs (ppm)Gr a p h i c L o g Sample DescriptionMo n i t o r W e l l RR-GW-4 0-5 <10 Red CLAY with some silt. 10/16/2006 <10 0-4 HA 5-7.5 <10 4'-25' GP 7.5-15 <10 Lt. brown silty SAND <10 <10 <10 Screen 15-25 <10 Interval <10 14'-24'<10 <10 <10 RR-GW-5 0-0.25 <0.1 Asphalt 10/16/2006 0.25-2 <0.1 Red CLAY fill 0-4' HA 2-5 <0.1 Red to orange clayey SILT slightly plastic, dry 4'-24' GP 5-8 <0.1 Lt Brown SILT slightly plastic, dry, manganese deposits, micaceous, saprolite 8-12 <0.1 Brown micaceous fine sandy SILT slightly plastic, moist, manganese deposits, saprolite 12-24 <0.1 Light brown micaceous fine sandy SILT manganese deposits, slightly plastic, moist <0.1 saprolite, saturated at 16.5'. <0.1 <0.1 <0.1 Boring terminated at 24' BGS and the well installed at 24' BGS. DTW = 18.92' on October 18, 2006. Screen Interval 14' - 24' Reddish clayey SILT micaceous Yellowish brown sandy SILT Boring terminated at 24' and well installed. DTW = 17.90 on October 18, 2006 140 Remount Rd boring.xls:Boring Log Page 2 of 2 12/27/2006 Appendix B Laboratory Analytical Data Sheets PRISM LABORATORIES,INC. Date: 11/02/06 Company: ERM NC, PC Contact: Jennifer Gliem Address: Suite 200 8000 Corporate Center Drive Charlotte, NC 28226 #: Result outside of the QC limits. DO: Compound diluted out. E: Estimated concentration, calibration range exceeded. Client Project ID: Prism COC Group No: Collection Date(s): Lab Submittal Date(s): J: The analyte was positively identified but the value is estimated below the reporting limit. H: Estimated concentration with a high bias. L: Estimated concentration with a low bias. M: A matrix effect is present. S. Blvd. G1006535 10/18/06 10/19/06 Case Narrative Notes: This report should not be reproduced, except in its entirety, without the writtten consent of Prism Laboratories, Inc. The results in this report relate only to the samples submitted for analysis. 449 Springbrook Road, P.O. Box 240543, Charlotte NC 28224-0403 Phone: 704/529-0364 Toll Free: 800/529-0364 Fax: 704/529-0409 ~al Full Service Analytleel & EnYlronmnntzll Solutlons ERM NC, PC Attn: Jennifer Gliem Suite 200 8000 Corporate Center Drive Charlotte, NC 28226 NC Certification No. 402 SC Certification No. 99012 NC Drinking Water Cert. No. 37735 Project ID: P v._j e i 5 B \a 11. l }(_~~/ ftus\__ S. Blvd. Level II QC Report 11/2/06 COC Group Number: G1006528 Date/Time Submitted: 10/19/06 12:50 This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P .0. Box 240543 -Charlotta, NC 28224-0543 Phone: 704/529-6364 -Toll Free Number: 1-800/529-6364 -Fax: 704/525-0409 Page 4 of9