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HomeMy WebLinkAboutRA-2069_12609_CA_RPTS_19950206_ CSAI I I I I I I I I I I I I I I I I I I LAW ENGINEERING AND ENVIRONMENTAL SERVICES COMPREHENSIVE SITE ASSESSMENT REPORT CONOCO STORE NO. 33047 1122 NORTH RALEIGH STREET ROCKY MOUNT, EDGECOMBE COUNTY, NORTH CAROLINA Prepared for: Conoco Inc. Houston, Texas r·----- 1 . ' ' FEB 7 1995 1 !:.J by: Law Engineering, Inc. Charlotte, North Carolina February 6, 1995 Law Engineering Project 56-4533 I I I I I I I I I I I I I I I I I I I j. ..:~=N=GI:..:N=~:..;R.:_IN_G_A_N_D_E_N_VI_R_ON_M_E_N-TA_L_S_E_R-VI_C_ES_ February 6, 1995 Ms. Milessa Tilford Conoco Inc. -Remediation Technology Ponca Building, P03028 600 North Dairy Ashford Houston. Texas 77079 Subject: Comprehensive Site Assessment Report Conoco Store No. 33047 1122 North Raleigh Street Rocky Mount, Edgecombe County, North Carolina Law Engineering Project 56-4533 Dear Ms. Tilford: As authorized by your acceptance of our Proposal for Comprehensive Sile Assessment Activities and Corrective Action Plan Preparation, dated October 11, 1994, Law Engineering, Inc. (LAW) is pleased to submit this Comprehensive Site Assessment Report for the Conoco Store No. 33047 in Rocky Mount, North Carolina. Included in this report are the results of assessment activities performed at the site to date. This report has been prepared as required under the North Carolina Administrative Code, Title 15A, Subchapter 2N (Criteria and Standards Applicable to Underground Storage Tanks) section .0706 (Investigations for Soil and Ground-Water Cleanup), and in general accordance with the North Carolina Department of Environment, Health and Natural Resources, Division of Environmental Management (NCDEHNR) Groundwater Section Guidelines for the Investigation and Remediation of Soils and Groundwater (March 1993), Section 15.1 (Comprehensive Site Assessment). LAW ENGINEERING, INC. 280 YOAKMONT ROAD, SUITE 100 • CHAALOTIE, NC 28208 P.O. BOX 11297 • CHARLOTTE, NC 28220 (704) 357·8600 • FAX (704) 357·8639 ONE OF THE LAW COMP ... NIES (i) Ms. Milessa Tilford February 6, 1995 Page 2 LAW appreciates the continuing opportunity to provide our professional services to Conoco Inc. Please contact us if there are any questions regarding the Comprehensive Site Assessment Report or regarding the subject site. Sincerely, LAW ENGINEERING, INC. ./J,(}J]w (() . r vpd.~ Sharon M. Tyndall. E.I.T. Project Engineer ~ ,,,ucuu,,, I ,,, Po''••, ., 'I' ,, , •• •o•• (./IJt:. .,, w.t.J'. ~-, • c.E Ns~0 .. "? '.::. Christopher L. Corbi~ P.p. SEAL \ \ Prmctpal : 0 : lOIS i § Registered, NC #lOti~"\., " :/::::; ~-P.•Y(; ":>'""-' ..,_,~;·· .. 9L QG\ .... ··~ l SMT/KJM:CLC:clp •,,, Op,;[··--;-· <;_,<0 ,••' .,, I 1. R \... , ..... ''•• ··~ .... ,,,,,, Enclosures /Uf!//l~ Kelly J. McBride Staff Geologist I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I COMPREHENSIVE SITE ASSESSMENT REPORT CONOCO STORE NO. 33047 1122 NORTH RALEIGH STREET ROCKY MOUNT, EDGECOMBE COUNTY, NORTH CAROLINA Prepared for: Conoco Inc. Houston, Texas by: Law Engineering, Inc. Charlotte, North Carolina February 6, I995 Law Engineering Project 564533 -----------------·----· --·------- I I I I I I I I I I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 TABLE OF CONTENTS February 6, 1995 Final LIST OF TABLES................................................................................................. iv LIST OF FIGURES ................................................................................................ iv I .0 SITE HISTORY AND SOURCE CHARACTERIZATION ........................................ 1-1 2.0 POTENTIAL RECEPTORS AND MIGRATION PATHWAYS ................................. 2-1 2.1 WATERWELLSURVEY ..................................................................... 2-1 2.2 AREA WATER SUPPLY ........................................................................ 2-1 2.3 SUBSURFACE UTILITIES ..................................................................... 2-2 3.0 AREA GEOLOGY ........................................................................................... 3-1 4.0 FIELD EXPLORATION ................................................................................... 4-1 4.1 SOIL TEST BORINGS AND MONITORING WELL INSTALLATION ............. 4-1 5.0 SUBSURFACE CONDITIONS ................. · .......................................................... 5-1 6.0 SOIL AND GROUND-WATER SAMPLING AND TESTING ................................. 6-1 6.1 SOIL SAMPLING AND ANALYSIS ......................................................... 6-1 6.2 GROUND-WATER SAMPLING AND ANALYSIS ...................................... 6-1 6.3 INFLOW PERMEABILITY TESTS ........................................................... 6-2 7.0 TEST RESULTS AND EVALUATION ................................................................ 7-1 7.1 SOIL ANALYTICAL RESULTS .............................................................. 7-1 7.2 GROUND-WATER ANALYTICAL RESULTS ............................................ 7-1 7.3 HYDRAULIC CONDUCTIVITY ............................................................. 7-1 7.4 GROUND-WATER MOVEMENT ......................................................... 7-2 8.0 SUMMARY OF COMPREHENSIVE SITE ASSESSMENT ACTIVITIES ..................... 8-1 8.1 SOIL .................................................................................................. 8-1 8.2 GROUND WATER ................................................................................ 8-1 ii Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 TABLE OF CONTENTS-Continued February 6, 1995 Final 9.0 QUALIFICATION OF REPORT ......................................................................... 9-l 10.0 REFERENCES ............................................................................................. lO-t TABLES FIGURES APPENDIX A: TARGET SOIL GAS SURVEY REPORT-AUGUST 1994 APPENDIX B: Boring Logs APPENDIX C: Monitoring Well Installation Records APPENDIX D: Laboratory Analytical Data for Soil and Chain-of-Custody Records APPENDIX E: Laboratory Analytical Data for Ground Water and Chain-of-Custody Records APPENDIX F: Calculations lll I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 LIST OF TABLES Table Area Property Owners 2 Soil Analytical Results 3 Ground-Water Elevation Data 4 Ground-Water Analytical Results 5 Ground-Water Analytical Results -Additional Detected Constituents LIST OF FIGURES Figure Site Location Map 2 Site Plan 3 Area Property Ownership Map 4 Area Water Supply Well/Off-Site Monitoring Well Location Map 5 Subsurface Utilities Map 6 Subsurface Cross Section A-A' 7 Subsurface Cross Section B-B' 8 Geoprobe Collection Points 9 Total BTEX Isopleth Map I 0 Benzene Isopleth Map II MTBE Isopleth Map 12 Ground-Water Contour Map iv February 6, 1995 Final Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 February 6, 1995 Final 1.0 SITE IDSTORY AND SOURCE CHARACTERIZATION Conoco Store No. 33047 is located at 1122 North Raleigh Street adjacent to East Grand Avenue in Rocky Mount, Edgecombe County, North Carolina. A 7. 5-minute United States Geological Survey (USGS) topographic quadrangle map denoting the site is provided as Figure I. The site is bounded to the north and northeast by East Grand Avenue (Figure 2). Across East Grand Avenue northeast of the site is a Hardees Restaurant. A gasoline station/convenience mart is located diagonally across the intersection of East Grand Avenue and North Raleigh Street, southeast of the site. Located southeast of the site across North Raleigh Street is an Edgecombe County Alcoholic Beverage Control Store. To the south of the site across North Raleigh Street is a vacant lot which may have been formerly occupied by a self service car wash facility. Adjacent to the site in a westerly direction is a private residence. A list of area property owners is provided in Table I; the properties described above are identified on Figure 3. Currently, located on site are three 10,000-gallon fiberglass underground storage tanks (USTs) containing unleaded, unleaded plus and super unleaded fuels. A 5,000-gallon UST which had contained kerosene fuel, and four gasoline dispensers were removed and replaced at the site in March 1994. The kerosene UST was replaced with a 4,000-gallon double-walled fiberglass UST. Law Engineering, Inc. (LAW) was requested by Conoco in March 1994 to observe the excavation and removal of the former UST and dispensers. As detailed in LAW's Underground Storage Tank System Closure Report, dated August 3, 1994, a LAW field representative on site during field activities observed the removal of the kerosene UST. Results of the laboratory analysis of soil samples collected during removal activities indicated that the soils in the vicinity of the kerosene UST had been impacted by hydrocarbons above North Carolina allowable limits. Soils excavated from the basin and from beneath the dispensers were transported to the Stalite Environmental facility in Salisbury, North Carolina for recycling; approximately 55 tons of soil was transported and recycled. Results of laboratory analyses of a ground-water sample collected from the UST basin during removal activities indicated that ground water in the vicinity of the basin had not been impacted by hydrocarbons at levels above North Carolina standards. 1-1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 February 6, I 995 Final At the request of Conoco, representatives of LAW visited the site on April 27, 1994. The store manager reponed the occurrence of free product in the subsurface in the vicinity of the gasoline dispenser area. Free product was observed at the edge of the concrete pad underneath the canopy and flowing across the pavement. A leaking shear valve in gasoline pump No. I was thought to be the source of product, and was subsequently replaced on April 27, 1994. The valve was later tested for tightness and maintained pressure. On April 28, 1994, a pressure test was performed on the gasoline product lines. This test indicated a leak was present in one line near gasoline pump No. 4. This leak was subsequently repaired. As an initial abatement activity, LAW excavated a temporary sump at the downgradient edge of the concrete pad/dispenser area. Subsequently, a four foot deep collection well, consisting of two feet of PVC slotted well screen and two feet of PVC riser pipe, was installed in the hole. A locking cap and a flush-mounted well vault were installed over the well. Product recovery activities were initially performed twice a week. A representative from our LAW office in Raleigh, North Carolina visited the site to measure the depth -of product in the well, remove by bailing any accumulated product, and emptying the product into a 55-gallon storage drum located on site. Due to lesser amounts of product being recovered, site visits to bail product were reduced to a weekly basis and subsequently to a monthly schedule. Approximately 15 gallons of product have been recovered from the collection well to date. LAW has subsequently discontinued product recovery activities at the request of Conoco. In July 1994, Target Environmental Services (Columbia, Maryland) performed a soil/gas survey and collected soil and ground-water samples utilizing a Geoprobe. Results of the soil gas survey are detailed in the report of Soil Gas Survey and Soil and Groundwater Sampling, prepared by Target, dated August 1994 (included as Appendix A). As detailed in the report, two areas on site were indicated to have high concentrations of volatiles in soils: the vicinity of the current UST basin, and the northeast corner of the property. The geoprobe activities performed included collection of soil and ground-water samples for laboratory analysis. Results of the laboratory analyses of soil samples collected during geoprobe activities indicated that the areas of hydrocarbon-impact in soils were in the vicinity of the UST basin. Results of analysis of ground- water samples collected during geoprobe activities indicated that the ground water has been impacted by hydrocarbons at levels above North Carolina standards. 1-2 Conoco Store No. 33047-Comprehensive Site Assessment Repon Law Engineering Project 56-4533 February 6, 1995 Final Presently, eight monitoring wells installed by LAW, MW -1 through MW -8 (Figure 2), are located on site. Wells MW-1 through MW-8 were installed between November 22, 1994 and December I, 1994. These wells were installed to delineate the horizontal and vertical extents of impacted ground water. l-3 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 February 6, 1995 Final 2.0 POTENTIAL RECEPTORS AND MIGRATION PATHWAYS 2.1 WATER WELL SURVEY The immediate vicinity of the Conoco site located in the North Raleigh Street/East Grand Avenue area of Rocky Mount, North Carolina is serviced by city water, according to Mr. Paul Blount, the director of the City of Rocky Mount Water Resources Department. During a telephone conversation between Mr. Blount and Ms. Kelly McBride of LAW on January 17, 1995, Mr. Blount stated that this particular area was probably one of the first areas in Rocky Mount to be serviced with public water, but he was unsure of the date of incorporation. Mr. Blount also stated that to his knowledge there are no private water-supply wells located within the city limits. In order to verify this information, a survey of water-supply wells potentially located within a I ,500-foot radius of the Conoco site was performed on November 30, 1994 by a LAW representative. No confirmed water-supply wells were noted at the residences or businesses located within the 1 ,500-foot radius during the survey of the area. The area appears to be primarily residential with some commercial businesses. The area of the water well survey is shown on Figure 4. 2.2 MONITORING WELL SURVEY A survey of off-site monitoring wells within a 1 ,000-foot radius of the Conoco site was performed November 22, 1994 by a LAW representative. During this survey, nineteen monitoring wells were identified on properties surrounding the site. The locations of these wells are denoted on Figure 4. 2.3 AREA WATER SUPPLY According to Mr. Paul Blount with the City of Rocky Mount Water Resources Department, the city receives water from the Tar River Reservoir or directly from the Tar River. The Tar River Reservoir is approximately eight miles southwest of the site (Figure 1). The Tar River flows within 4,000 feet of the site at its closest point. The river is located downgradient of the site to the north. 2-1 Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 2.4 SUBSURFACE UTILITIES February 6, 1995 Final Water mains, catch basins and gas lines observed in the vicinity of the Conoco site are noted on Figure 5. These locations are approximate and the depth of burial of these lines is not known. The location of the water main was taken from a portion of a map provided by the City of Rocky Mount (date unknown). The location of the gas line was verified by Mr. Ike Fowler, Gas Superintendent of Rocky Mount, in a telephone conversation with Ms. Kelly McBride of LAW on January 26. 1995. No building basements are located on the properties located immediately adjacent to the site. No basement is located at the Conoco site. 2-2 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 0 I Conoco Store No. 33047 -Comprehensive Site Assessment Report Law Engineering Project 56-4533 3.0 AREA GEOLOGY February 6, /995 Final The project site is located in the Atlantic Coastal Plain Physiographic Province. In general, the sediments of the Coastal Plain consist of interbedded sands, clays, calcareous clays, shell beds, sandstone, and limestone (LeGrand, 1959). These sediments are generally layered in interfingering sand beds and clay lenses that gently dip and thicken to the east. In the Rocky Mount area, the Coastal Plain sediments are about I 00 to 300 feet thick and apparently overlie igneous and metamorphic basement rocks of the Piedmont Physiographic province. These sediments were apparently deposited in marine or near-marine environments. According to the Geologic Map of North Carolina (1985), the site is located in the Yorktown Formation which consists of fossiliferous clay with varying amounts of fine-grained sand. It is typically bluish gray with shelly material commonly found in lenses. The Yorktown Formation is underlain by the Duplin Formation which consists of shelly medium to coarse sand, sandy marl and limestone. The site is also located near the Tar River where the underlying Cape Fear Formation is exposed due to erosion of the overlying sediments. This formation consists of yellow gray to bluish gray, mottled red to yellowish orange graded sands that are locally indurated (NCGS, 1985). In general, downward movement of ground water within Coastal Plain sediments is obstructed by the presence of clay layers in Coastal Plain formations and consequently most of the ground-water recharge migrates laterally toward discharge areas through the surficial aquifer (Heath, 1980). In the Rocky Mount area, sediments deposited in marine or near-marine environments are about I 00 to 300 feet thick and overlie igneous and metamorphic basement rocks according to the 1985 Geologic Map of North Carolina. The aquifers of the Rocky Mount area are the surficial and the Cape Fear aquifers. They are separated by less permeable clay and silt beds (confining units) that may impede the flow of ground water between the aquifers. The surficial aquifer in the northern portion of the Coastal Plain consists of Pleistocene deposits that are comprised of fine to coarse sand and silty sand grading to a clayey sand or sandy clay at depth (Winner and Coble, 1989). The surficial aquifer is relatively shallow in this area and commonly extends to depths of 10 to 40 feet. This unit is typically not used for water supply in the area. 3-1 Conoco Store No. 33047-Comprehensive Site Assessment Repo11 Law Engineering Project 56-4533 February 6, 1995 Final There are two principal water-supply aquifers for the area surrounding the site. The Yorktown aquifer occurs beneath the surficial aquifer and consists of fine sand, silty sand and clay and is characterized by pervasive shells and shell beds. This aquifer overlies the Upper Cape Fear aquifer which consists of alternating beds of clay and sand. The upper Cape Fear confining unit separates the Yorktown aquifer from the underlying Upper Cape Fear aquifer. The confining unit generally consists of nearly continuous clay, silty clay and sandy clay beds. Water levels in wells tapping the surficial aquifer vary seasonally. The surficial aquifer receives more recharge in the winter than in the summer when much of the water evaporates or is transpired by plants before it can reach the water table. Therefore, the water table generally is highest in the winter months and lowest in the summer or early falL 3-2 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I D I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 4.0 FIELD EXPLORATION February 6, 1995 Final The field exploration conducted at the site included performing a soil gas survey, collecting soil and ground-water samples using a geoprobe, and installing eight monitoring wells. Collection points for soil/gas samples were chosen by Target; soil/gas samples were collected and analyzed for hydrocarbons by Target personneL Procedures and results of activities are detailed in Target's Report of Soil/Gas Survey and Soil and Ground Water Sampling (attached as Appendix A). Geoprobe sample collection points were selected by LAW personnel and Conoco based on preliminary soil/gas survey data and site accessibility. The results of these activities were detailed in LAW's Preliminary Assessment Repon, dated November 22, 1994. The boring locations for the eight monitoring wells were selected in the field by LAW personneL These locations were selected based on existing site conditions, estimated ground-water flow direction and accessibility of the drill rig. The locations are shown on Figure 2. Following installation, the wells were located in the field and elevations for the wells were measured using a level and graduated rod. These elevations· were referenced to an assumed site datum (top of casing of well MW-7 = 100 feet). The locations and elevations for the borings and wells should be considered accurate only to the degree indicated by these methods. 4.1 SOIL TEST BORiNGS AND MONlTORlNG WELL INSTALLATION Eight soil test borings have been performed at the site. Borings MW-1 through MW-8 were drilled by LAW. The borings were drilled using a truck-mounted drill rig employing continuous flight hollow-stem augers to advance the boreholes. During drilling, soil sampling and penetration testing were performed in general accordance with ASTM 0-1586. At regular intervals, soil samples were obtained with a standard 1.4-inch 1.0., 2-inch 0.0., split-spoon sampler. 4-1 Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 February 6, 1995 Final Representative portions of the soil samples recovered from the borings were scanned with an organic vapor analyzer (OVA) and classified in the field by LAW personnel. Test boring records showing the soil descriptions and penetration resistances for each boring are included in Appendix B. To reduce the potential for cross-contamination between borings, downhole drilling equipment was steam cleaned prior to drilling each boring. Type II (shallow) ground-water monitoring wells were installed in boreholes MW-1 through MW-4 and MW-6 through MW-8 to depths ranging from 19 feet to 24 feet. A Type III (deep) monitoring well was installed in borehole MW-5 to a depth of 53 feet in order to assess the vertical extent of hydrocarbon impact. The Type II ground-water monitoring wells (MW-1 through MW-4 and MW-6 through MW-8, Figure 2) consist of two-inch diameter PVC pipe (Schedule 40 with flush-threaded joints) inserted into ten-inch diameter augered boreholes. The bottom 15-foot section of each monitoring well is a manufacntred well screen with 0.010-inch slots. The well screens were set to intercept the saturated/unsaturated zone interface encountered at the time of drilling. Washed sand backfill was placed around the outside of the pipe to approximately one-foot above the top of the well screen. The sand backfill is used to stabilize the fortnation and to help yield a less turbid ground-water sample. A bentonite seal (minimum one-foot thick) was installed on top of the sand backfill to seal the monitoring well at the desired level. The borehole was then grouted with a Portland cement/bentonite mixture to the ground surface. A lockable well cap was installed and a flush mounted protective steel cover was cemented in-place over each monitoring well. The Type III monitoring well (MW-5) consists of a ten-inch diameter augered borehole advanced through the overburden soils to a depth of 45 feet below the ground surface using hollow stem augers. Four-inch diameter PVC pipe was installed to the tertnination depth of the borehole. The annular space between the borehole and the four-inch PVC pipe was grouted with a cement/bentonite grout to near ground-surface and allowed to cure for 24 hours. After the grout around the four-inch PVC casing had cured, a four-inch diameter borehole was then advanced to approximately eight feet below the bottom of the four-inch casing using rotary wash drilling procedures. Two-inch diameter PVC casing with a five-foot (0.010-inch slots) 4-2 I I I I I I I I I I I I I I I I I I I I I I I I I I 0 I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 February 6, /995 Final manufactured screened section at the bottom was installed through the four-inch casing and into the washed borehole. A sand-pack was constructed around the pipe to several feet above the screen, followed by an approximately two-foot thick bentonite seal. Above the bentonite. the annular space was filled with grout to the ground surface. The monitoring well installation records for Type ll and Type lli wells are provided in Appendix C. Measuring point and ground-water elevations were determined by measuring the top of each PVC well casing relative to an on-site datum, measuring the water level in each monitoring well and computing the reference elevation of the ground water at the time of measurement. A summary of the ground-water elevation data is included as Table 3. 4-3 Conoco Store No. 33047-Comprehensive Site Assessment Repo11 Law Engineering Project 56-4533 5.0 SUBSURFACE CONDITIONS February 6, 1995 Final Eight soil test borings (MW-1 through MW-8, Figure 2) and ten geoprobe borings (GP-1 through GP-10; Figure 8) have been performed at the site. The eight soil test borings were subsequently completed as monitoring wells; the geoprobe borings were performed in order to estimate the extent of the hydrocarbon-impacted soil on the site. -The soil analytical results are summarized in Table 2. The borings generally encountered residual soils from ground surface. The residual soils encountered generally consisted of loose to firm sands, firm to very stiff clays and stiff to hard silts. Partially weathered rock was encountered in boring MW -5 between 39 and 45 feet below ground surface. Subsurface profiles detailing subsurface conditions are provided as Figures 6 and 7. Ground-water levels were measured in the monitoring wells on December 16, 1994. The ground- water measurements are summarized in Table 3. Ground-water levels may fluctuate several feet with seasonal and rainfall variations and with changes in the water level of adjacent drainage features. Normally, the highest ground-water levels occur in late winter and spring. The lowest levels occur in late summer and fall. Ground-water measurements for monitoring wells screened in the surficial, unconfined aquifer are presented on the ground-water contour map on Figure 12. The above descriptions provide a general summary of the subsurface conditions encountered. The test boring records (Appendix A) contain detailed information recorded at each boring and include our interpretation of the subsurface conditions based on examination of the field samples. The lines designating interfaces between strata represent approximate boundaries and the transition between strata may be gradual. 5-1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I B I • I I I I I I Conoco Store No. 33047 · Comprehensive Site Assessment Report Law Engineering Project 56-4533 February 6, 1995 Final 6.0 SOIL AND GROUND-WATER SAMPLING AND TESTING The following sections detail soil and ground-water sampling and testing activities performed at the site. 6.1 SOIL SAMPLING AND ANALYSIS Soil samples for laboratory analysis were not collected during well installation due to the collection of numerous soil samples during geoprobe activities performed at the site in August 1994. Soil samples were obtained from borings GP -1 through GP-10 (Figure 8). The samples were analyzed for total petroleum hydrocarbons-volatile constituents (EPA 5030/8015M). Selected samples were also analyzed for total petroleum hydrocarbons semi-volatile constituents (EPA 3550/8015M). The results were originally submitted as part of LAW's November 22. 1994 report; they are reproduced in Table 2; the laboratory analytical report and chain-of-custody laboratory records are provided in Appendix D. 6.2 GROUND-WATER SAMPLING AND ANALYSIS Following stabilization of the water levels in the monitoring wells. water levels were measured in each well with an electric water-level indicator to determine depth to the water surface. The measured water depth was used in conjunction with the total casing depth to determine the height of the water column and the volume of water standing in each monitoring well. The monitoring wells were developed by bailing until the water's turbidity was reduced and it was determined that each monitoring well was functioning properly. Bailing was continued until a volume of water equal to at least six times the volume of water in the well casing under static conditions was removed or until all accessible well water was evacuated. The monitoring wells were sampled on December 16, 1994. A trip blank prepared in the laboratory was maintained for quality assurance purposes. The ground-water samples and trip blank were placed on ice and sent via overnight carrier to Law Environmental National Laboratories in Kennesaw, Georgia for laboratory analysis. The ground-water samples from the 6-1 Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 February 6, 1995 Final December 16, 1994 sampling event were analyzed for benzene, toluene, ethylbenzene and xylenes (BTEX), methyl-tertiary-butyl ether (MTBE) and isopropyl ether (IPE) by EPA Method 602; purgeable halocarbons by EPA Method 601; ethylene dibromide (EDB) by EPA Method 504; and lead by EPA Method 30306. Laboratory test results for the sampling event are summarized in Tables 4 and 5. The laboratory analytical report and chain-of-custody records are provided in Appendix E. 6.3 INFLOW PERMEABILITY TESTS Inflow permeability tests were performed on monitoring wells MW-3 and MW-8 to estimate the hydraulic conductivity of the formation materials exposed to the screened interval at the monitoring well location. Hydraulic conductivity is a constant of proportionality relating to the ease with which a fluid passes through a porous medium. The field procedure to calculate the hydraulic conductivity is as follows: • Measure the depth to the ground water; • remove water from the borehole by bailing; and • measure the ground-water recovery rate. The field tests were conducted on December 16, 1994. Results of the field testing are discussed in Section 7.3; calculations are included in Appendix F. 6-2 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 7.0 TEST RESULTS AND EVALUATION The following sections discuss the results of soil and ground-water analyses. 7.1 SOlL ANALYTICAL RESULTS February 6, /995 Final Soil samples collected during geoprobe activities in August 1994, were analyzed for TPH-volatile constituents: selected soil samples were analyzed additionally for TPH semi-volatile constituents, as discussed in Section 6.!. Levels of hydrocarbons were above North Carolina allowable levels at one collection point, GP-3. The results of the analyses are summarized in Table 2. These results were also detailed in our Preliminary Assessment Report, dated November 22. 1994. 7.2 GROUND-WATER ANALYTICAL RESULTS Ground-water samples collected during the sampling event on December 16, 1994, were analyzed as detailed in Section 6.2. The results of the analyses are summarized in Tables 4 and 5. The results of the analyses indicate that ground water at this site has been impacted by hydrocarbons and other chlorinated compounds. A total BTEX isopleth map, a benzene isopleth map and an MTBE isopleth map are provided as Figures 9, 10 and II, respectively. Concentrations of benzene, toluene, ethylbenzene and xylenes above North Carolina ground-water standards (as listed in NCAC Title 15A, Subchapter 2L, and provided in Table 4) were detected in wells MW-1, MW-2, MW-3 and MW-7. Only the ground-water standard for benzene was exceeded in wells MW-1 and MW-3. MTBE was detected at a concentration above the North Carolina ground-water standard in wells MW-2, MW-7 and MW-8. Hydrocarbons were non- detectable or below ground-water standards in wells MW-5, MW-6 and MW-8. Concentrations of lead exceeded North Carolina ground-water standards in wells MW-3 and MW-8. Chloroform was detected above the North Carolina standard in well MW-5. Tetrachlorethene was detected above the North Carolina standard in well MW-2. 7-1 Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 7.3 HYDRAULIC CONDUCTIVITY February 6, 1995 Final The hydraulic conductivity of the formation materials was estimated at 2 x 10·3 to 2 x 104 em/sec based on data recorded during field testing on December 16, 1994. The test results are as follows: MW-3 94.05 -79.05 MW-8 91.98-76.98 NOTE: silty CLAY /clayey SAND clayey silty SAND · :'~ ~~~,:~Y~r~~~~-~;;-·:_·;~:-~. .. Conductivi!y.c(K); · .: :·.(~in/sec )f. •• "<• ,_ - Data were reduced and the hydraulic conductivities computed using techniques described in Bouwer (1989) and, Bouwer and Rice (1976). Calculations for hydraulic conductivity are included in Appendix F. 7.4 GROUND-WATER MOVEMENT Ground-water movement is often related to topography, lithology, elevation of recharge and discharge areas and man-made influences. Referenced ground-water elevations were determined by measuring the top of the monitoring well casing relative to a nearby, on-site datum elevation (top of casing of well MW-7 = 100 feet), measuring the water level in the monitoring well, and computing the reference elevation of the ground water at the time of measurement. Directions of ground-water flow were interpolated between monitoring wells by comparing the ground-water elevations at those locations considering the factors listed above. Ground-water levels typically fluctuate with seasonal and rainfall variations. 7-2 I I I I I I I I I I, I I I I I I I I I I I I I I I I I I I I I I I D I I I Conoco Store No. 33047-Comprehensive Site Assessment Reporl Law Engineering Project 56-4533 February 6, 1995 Final Ground-water elevation data for the December 16, 1994 sampling event were plotted and a ground- water contour map of the surficial aquifer was prepared (see Figure 12). The generalized direction of the ground-water flow at the site is to the northwest as shown on Figure 12. The data points used to prepare the ground-water contour map (ground-water elevations in site monitoring wells) are summarized in Table 3. Hydraulic gradients were determined by dividing the difference in ground-water elevation at two locations by the horizontal distance between the two locations. The average hydraulic gradient at the site was computed to be approximately 0.0605 foot/foot. In addition to hydraulic gradients (i), the rates of ground-water movement (v) are a function of hydraulic conductivity (k) and effective porosity (ne), as indicated by the equation v=ki/ne. The effective porosity can be expected to be approximately 20 to 30 percent for the silty clays and clayey sands at this site. Based on those parameters, the average lateral ground-water movement in the silts at the site can be expected to be between approximately 42 to 64 feet per year. The rate of migration of the dissolved organic constituent(s), however, may be substantially slower than ground water itself, due to retardation and intrinsic aerobic biodegradation. Hydraulic calculations are provided in Appendix F. 7-3 Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 February 6, 1995 Final 8.0 SUMMARY OF COMPREHENSIVE SITE ASSESSMENT ACTIVITIES 8.1 SOIL Results of the assessment activities performed to date indicate that soils at the site have been impacted by hydrocarbons at levels above North Carolina Standards; however, the area of impact appears to be limited to the vicinity of the former kerosene UST. 8.2 GROUND WATER Based on the results of the assessment activities performed to date, it appears that ground water at the site has been impacted by hydrocarbons at levels above North Carolina allowable levels. The highest concentrations of compounds were detected in wells MW-2 and MW-7. The plume of impacted ground water appears to be sufficiently defined in the horizontal direction to the northeast, east, southwest and south. The plume of impacted ground water appears to be defined in the vertical direction. 8-1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 9.0 QUALIFICATION OF REPORT February 6, 1995 Final The activities and evaluative approaches used in this report are consistent with those normally employed in hydrogeological assessment and remediation projects of this type. Our evaluation of site conditions has been based on our understanding of the site, project information provided to us and data obtained in our exploration. The general subsurface conditions utilized in our evaluation have been based on interpolation of subsurface data between borings. 9-1 Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 10.0 REFERENCES February 6, 1995 Final Bouwer, H. and R.C. Rice, 1976, "A Slug Test for Determining Hydraulic Conductivity of Unconfined Aquifers with Completely or Partially Penetrating Wells," Water Resources Research, Vol. 12, No. 3, pp. 423-428. Bouwer, H., 1989, "The Bouwer & Rice Slug Test-An Update," Groundwater, Vol. 27, No.3, pp. 304-309. Fetter. C.W., Jr., 1980, Applied Hydrogeology, Charles Merrill Publishing Company, Columbus, Ohio. Freeze, R.A., and Cherry, J.A., 1979, Groundwater, Prentice-Hall, Inc., Englewood Cliffs, New Jersey. 10-1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Conoco Store No. 33047 ~ Comprehensive Site Assessment Report Law Engineering Project 56-4533 TABLES February 6, 1995 Final I I I I I I I I u I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineen'ng Project 56-4533 TABLE 1 AREA PROPERTY OWNERS Map Owner's Property Number Name Location** 3860.17 George F. Rose A 3860.17 Alice Battle B 3860.17 Alice Battle c 3860.17 Fenners Warehouse, Inc. D First City Bank 3860.17 Fenners Warehouse Inc. E 3860.17 Peter P. Williams F 3860.17 L.W. Locke G 3860.17 Alcoholic Beverage H Control Board 3860.17 James P. Neville, Jr. 3860.17 Marvin H. Proctor J 3860.17 Chesley H. Proctor K February 6, 1995 Final Street Address of Property 34 through 38 Freeman Street 1100 North Raleigh Street Ill 0 North Raleigh Street 1200 North Raleigh Street 1210 North Raleigh Street address not available 1217 North Raleigh Street Raleigh Street and H wy. 64 1115 North Raleigh Street 1111 North Raleigh Street 1101 North Raleigh Street Prepared/Date: .....~..:.!6::;;,-:.M:....::...____::J.--!--/'..:./.,;9,5' ____ _ Checked/Date: -"-'ful"-'-'-r--...::.:J--'-/-"I£'-'/'-'9-=-s ___ _ Notes: I) Property information obtained from Edgecombe County Tax Office. 2) Mailing addresses of property owners were not available. **See Figure 3 for corresponding property locations Conoco Store No. 33047-Comprehensive Site Assessment Report February 6, 1995 I Law Engineering Project 56-4533 Final I TABLE 2 I SOIL ANALYTICAL RESULTS Sample TPH TPH I Sample Depth Date Volatiles Semi-Volatiles+ !54 Location (feet. bgs) Sampled (5030/8015M) (3550/8015M) I GP-1 4-5 08/07/94 ND NA I GP-1 9-10 08/07/94 ND NA GP-2 4-5 08/07/94 ND NA I GP-2 9-10 08/07/94 ND NA I GP-3 4-5 08/07/94 ND 82(d) I GP-3 9-10 08/07/94 ND ND GP-4 4-5 08/06/94 ND NA I GP-4 9-10 08/06/94 ND NA I GP-5 4-5 08/06/94 ND 10(d) I GP-5 9-10 08/06/94 ND ND GP-6 4-5 08/06/94 ND NA I GP-6 9-10 08/06/94 ND NA I GP-7 4-5 08/06/94 ND NA I GP-7 9-10 08/06/94 ND NA GP-8 4-5 08/06/94 ND NA I GP-8 9-10 08/06/94 ND NA I GP-9 4-5 08/06/94 ND NA I GP-9 9-10 08/06/94 ND NA I Page 1 of 2 I I I I I I I I n I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report · Law Engineering Project 56-4533 TABLE 2 SOIL ANALYTICAL RESULTS Sample TPH Sample Depth Date Volatiles Location (feet, bgs) Sampled (5030/80l5M) GP-10 4-5 08/06/94 NO GP-10 9-10 08/06/94 NO February 6, 1995 Final TPH Semi-Volatiles+ 154 (3550/80l5M) NA NA Prepared/Date: --'-'K'::'Ji-'-M....:..___.:Z-:J./--'1...1./_,q7:;-__ _ Checked/Date: _""ii.J.clm.Ll..l.[ _ _c_J-.:..:1 /f"--'-/9'--?'--__ NOTES: l. NO = Not Detected 2. Concentrations reported in milligrams per kilogram (mg/kg). 3. NCDEHNR Action Levels for soil are 10 mg/kg for volatiles and 40 mg/kg for semi-volatiles. 4) (d) = Tentatively identified as diesel. 5) TPH = Total Petroleum Hydrocarbons 6) bgs = below ground surface Page 2 of2 Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 TABLE3 GROUND-WATER ELEVATION DATA Elevation of Depth to Well Top of Pipe Ground Water Number (feet) (feet) MW-1 92.72 7.80 MW-2 100.74 16.58 MW-3 102.64 14.23 MW-4 102.77 14.56 MW-5 102.86 4.39 MW-6 99.81 11.83 MW-7 100.00 14.81 MW-8 97.66 13.22 February 6, 1995 Final Ground-Water Elevation (feet) 84.92 84.16 88.41 88.21 98.47 87.98 85.19 84.44 Prepared/Date:,<)"~ z. f, I q r Checked/Date: "mlr ;l-/y /9<J NOTES: 1) Ground-water elevation data collected on December 16, 1994. 2) Elevations referenced to an assumed site datum (top of casing MW-7 = 100 feet). 3) MW -5 is a deep, Type Ill well. I I I I I I I I I I I I I I I I I I I I I I I I I I I I g I D I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineen·ng Project 56-4533 TABLE 4 February 6, 1995 Final GROUND-WATER ANALYTICAL RESULTS-TOTAL BTEX AND MTBE Well Benzene Toluene Ethylbenzene Xylenes Number (ug/1) (ug/1) (ug/1) (ug/1) MW-1 9.6 ND ND 23 MW-2 3,900 5,700 780 3,200 MW-3 7.2 1.3 ND ND MW-4 NS NS NS NS MW-5 ND 1.3 NO ND MW-6 NO 2.3 1.9 13 MW-7 8,500 10,000 1,300 5,000 MW-8 ND NO NO 27 Trip Blank NO 2.2 NO NO NCGWS 1000 29 530 Notes: I) Samples collected for analysis on December 16, 1994. 2) MTBE = methyl-tertiary-butyl ether. 3) NO = Not Detected 4) NS = Not sampled due to heavy product sheen TotalBTEX MTBE (ug/1) (ug/1) 32.6 67 13,580 15,000 8.5 7.4 NS NS 1.3 NO 17.2 35 24,800 34,000 27 2,200 2.2 NO 200 Prepared/Date: --'lc..::V.,__M,;__..,z..~..../-f'l/,_9 J:...~ Checked/Date: ___,'fl'lJ"'-'-'r---"r-'-1 v,._._/ 9...,!5'_ 5) NCGWS = North Carolina Ground-Water Standards, NCAC Title 15, Subchapter 2L, Section . 0202(g). Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 TABLE 5 GROUND-WATER ANALYTICAL RESULTS ADDITIONAL DETECTED CONSTITUENTS Well IPE EDB Chloroform Tetrachloroethene Number (ug/1) (ug/l) (ug/1) (ug/1) MW-1 ND ND ND ND MW-2 600 ND ND 3. l MW-3 ND ND ND ND MW-4 NS NS NS NS MW-S ND ND 49 ND MW-6 9.6 ND ND ND MW-7 760 ND ND ND MW-8 38 ND ND ND Trip Blank ND ND ND ND NCGWS NL 4.0 X l0-4 0.19 0.70 February 6, 1995 Final Lead (mg/1) ND ND 0.076 NS ND ND ND 0.21 NA O.OlS Prepared/Date: _,_t<-"":J'-'""'-.:..::.___:...Z-.;..(..:.,I..J./...J1""S ____ _ Checked/Date: ___ ']m-"'"-,_,_1_')-"-'-'/yw/'-'q-"'1) ____ _ Notes: 1) Samples collected for anlaysis on December 16, 1994. 2) NS = Not Sampled, due to heavy product sheen 3) ND = Not Detected; NA = Not Analyzed 4) NCGWS = North Carolina Ground-Water Standards, NCAC Title !SA, Subchapter 2L. S) NL = No Standard Listed (NCAC Title !SA, Subchapter 2L Section .0202(g)) where no standard is established, standard is taken as the laboratory detection limit. I I I I I I I I I • 0 I I I I I I I I ·----·------- I I I I I I I I I I I I I I I I I I I Conoco Store No. 33047 ~ Comprehensive Site Assessment Report Law Engineering Project 56-4533 FIGURES February 6, 1995 Final I I I I I I I I I I n I I I I I I I I I I I I I I I I I I I I I / / / \ \ \ \ \ \ A \ \ MW- i ~ ~ -'< REF., SlltPLAN BY CONOCO. SHELT o~. 33047. DAlED ID-29-92. ·-.. ·-,,_ ·--...., . PUMP WITH LEAKY VALVE -~ \ \\ \\ \ ) I ~\ I \ \. MWf.-6 /~ I I I / -~-I \ \ \ I I / -·~- ~----------, 1 I L __________ l i/~-~/1 f " L .. c::>J (1) = 0 • EXPLANATION PROPERTY LINE APPROXIMATE LOCATION OF UNDERGROUND STORAGE TANKS AREAS WITH CONCRETE COVER PUMP ISLAND (NUMBER) CEDAR PRIVACY FENCE TYPE II MONITORING WIELL TYPE Ill MONITORING WIELL MONITORING WIELL INSTALLED BY OTHERS APPROXIMATE LOCATION OF FREE PRODUCT COLLECTION WIELL SUBSURFACE CROSS-SECTION (REFER TO FIGURES 6 AND 7) 30 0 30 Ia ~~'!'AND EN~RONWENTAL ~= QIARLOTTE. NORlH CAROliNA SITE PLAN CONOCO STORE NO. 33047 1122 NORTH RALEIGH ST. -ROCKY MOUNT, N.C. OlEO< EO 56-4533 FIGURE 2 I I I I I I I I I I I I I I I I I I I \ ' \ I . . \ \ \ / _.--" / / / / ··- A EXPLANATION OWNER DESIGN A nON PROPERTYTO TABLE 1) (REFER 200 100 0 200 -------~~~~~~~ME~m~•mn~----=----APPROXIIIATE / LAW \IIR<»>IIENTAl SERVICES ENGINEERING ANON~\H CAROUNA CHAALOTlE. I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I "' Q I ~ ,;; "' ~ I "' N ' 5 "' Q I 8 N / "' "' "' .. "' REF.: "' / I -'; ) /~ PROPERTY IAAPS OF EDGECOI.tBE COUNTY, NORTH CAROLINA, MAP N 1 7 . A 1 I --~~~DI4S _.. -'"I --. i-..._ """"..-I \· .._ ,.. -·------·-.\ ......... / \". ....... ....... \~:-, ', \ .:-, ....... '.;·, ' 1000' RADIUS ···<··, \\ \_ ·.l _..--------..... ..... -----· ' ' ' ' ' ' \ \ \ I I I I I I I I -, , LJ ·. /t.?/ )(1)1 I I I ,-----J I I ·~'-. /t;Y ·, ___ I 1/ I \.I I '1. 1\ I I I EXPLANATION 0 APPROXIMATE LOCATIONS OF MONITORING WELLS NOTE: 1) NO AREA WATER SUPPLY WELLS NOTED WITHIN 1500' RADIUS OF SITE. 0 APPROXIIlATE SCALE IN FEET ~ ~~AND EN"'RONIIENTAl SER"'CES CHARLOTTE, NORni CAROUNA AREA WATER SUPPLY WELL I OFF SITE IIONITORING WELL LOCATION IIAP CONOCO STORE NO. 33047 1122 NOR':"H RALEIGH ST. -ROCKY MOUNT, N.C. CHEO<EO 56-4533 FlGURE 4 I I I I I I I I I I I I I I I I I I I ~ / / \ \ \ \ \ \ REF.: SITEPLAN BY CONOCO. SHEET NO. 33047. DATED lG-29-92. STORM WATER CATCH BASIN " " ) /~ / / /0 ./ MW-8 ./ PUMP WITH LEAKY VALVE \ \ /~ i / I ) ' I .f ----f-ro;; WATER ~~~"!£~ "i CAT ~·.- \ . -.:...-;-- -·~- ~----------- ' ~----------1 r ........ /· / ... / ./ ... " ... /1 r· // / ... / .. /I ( 1) = 0 • EXPLANATION PROPERTY LINE APPROXIMATE LOCA nON OF UNDERGROUND STORAGE TANKS AREAS WITH CONCRETE COVER PUMP ISLAND (NUMBER) CEDAR PRIVACY FENCE TYPE II MONITORING WELL TYPE Ill MONITORING WELL MONITORING WELL INSTALLED BY OTHERS APPROXIMATE LOCA nON OF FREE PRODUCT COLLECnON WELL 30 0 APPROXIIIATI! SCAlE IN l'EET 30 l. ~~'!'AND EN~ONMENTAL ~CES OiARLOTTE, NORTH CAROUNA SUBSURFACE UTILITIES MAP CONOCO STORE NO. 33047 1122 NORTH RAlEIGH ST. -ROCKY MOUNT, N.C. PREPAREIIv BY ~ JOB NO. 56-4533 nGURE ------- I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ~, ~ ~ "' I I I 1 l i i l I I ' ~ ::l ., • 100 90 ;:::-w w .... ~ z 0 F <( > 80 w --' w w f- <( :::; x 0 "' a. "-70 <( 60 50 A MW-5 MW-4 ----------------MW-2 ___ --------- ... .. . -=- BT BT 00 00 00 00 00 00 00 oo oo 00 00 BT PROFILES ~..-...--GROUND- WATER ELEVATION EXPLANATION SCREENED ---t~Y: INTERVAL BT BORING TERM INA TED --------GROUND-SURFACE --- ---GROUND-WATER ELEVATION A' -----------___ MW-6 - BT SOIL SYMBOLS FILL SANDY CLAY SAND CLAYEY SAND CLAY SILTY CLAY SILT • ASPHALT SANDY SILT CLAYEY SILT 100 90 80 70 60 50 ;:::-w w .... ~ z 0 F <( > w --' w w f- <( :::; x 0 "' a. "-<( 10 APPROXIMATE SCALE (FEET) 20 J& ~~~AND EN~~~TAL SER~CES OiARLOTlE, NORlH CAROUNA CROSS·SECTION A·A' CONOCO STORE NO. 33047 1122 NORTH RALEIGH ST. -ROCKY MOUNT. N.C. PREPARED,, , BY l\ DAlE }\[! l% OiEa<EO Cte.- ~ ~-~ 6 ~~----------------------------------------------------------------------------------~----~------~----------~ PARTIALLY WEATHERED ROCK SILTY SAND JOB NO. FIGURE I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I "' , " .., .. I ~ "' ~ .. N ' I i5 "\ "' "' 0 « I ;l-.., .., "' .. ; I ., B 100 90 ~ w w "-~ z 0 F < > w 80 --' w I!! < "' x 0 0:: Q. Q. < 70 60 50 --------------~~5 EXPLANATION PROFILES M,_,___ GROUND- WATER ELEVATION SCREENED --4-"11 INTERVAL --- BT BORING TERMINATED --------GROUND-SURFACE --- --- ---GROUND-WATER ELEVATION ------___ MW-7 BT SOIL SYMBOLS FILL SAND CLAY SILT • SANDY SILT SILTY SAND ------ SANDY CLAY CLAYEY SAND SILTY CLAY ASPHALT CLAYEY SILT PARTIALLY WEATHERED ROCK B' ---MW-8 - BT PREP BY 100 90 80 70 60 50 ~ >--w w ~ z 0 F < > w --' w w >--< "' x 0 0:: Q. Q. < 10 APPROXIMATE SCALE (FEET) 20 ..£,~~AND EN'IIR<»>IIENTAL SERVICES CHARlOTTE. NORTH CAROLINA CROSS·SECTION B·B' CONOCO STORE NO. 33047 1122 NORTH RALEIGH ST. -ROCKY MOUNT, N.C. CHECKED ac.... 56-4533 FIGUR£ I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ~ "' ~ ~ :8 \ \ / / \ \ 0 \ GP-2 \ \/) \ \ \ 0 \JAPPROX. EXTENT , MW-70 GP-8 \ MW-2 OF FORMER ~/';:--~ 0 · /"' \ m~~~~~JANK '. / /'~·</?/"'>---. GP-9 \ \ ~· ' --~ jF>////&7 ~//--o \,\ · .. , .,.-\ I Q # 33047. / // 0 / // //!)</ / • )';--·~ ', ~fu~tti~~--\-\-I\ '-t:;'::.·::;::·<<~:.· .. ::.:·;:·.~;:~; ) > \\\ .. /. / / ./ ./ / / / / .1 . -s.,.. !// ..... /.---//,.,,, I . ~---\.,) ,\ ,. \ \ .: ... ... / ::."'\ .-,· / / .... / / '1 ' 1 n1i ~R~. . MW-4 '.:.....(/ /;::; ,/·, ~ //. • // 0' \~1 r .~ I ·, 0 OGP-5 -<..:···· .· / // / / / /.. M.W'-6 . \.---" , . / v"\ 0MW-5 / ' // / .;;yjj /'1 U/ /I//.·. , /'/ ____ 1 <::_·_'j-ij•/·//• GP-10_ .. / _/ \ \//r _./ //--·' /1 1 GP 7 • . foJ/J ( , 1/ / /..--/ • I I -""-...( •] y/·· /.,_,/"'..2: .. / \ \ ~ ,/ I \ \ \ -y- \ \LOCATION OF N~ ~ I i \ \KEROSENE UST 1 ---~~::y ~~VE ,_-----j- \ ~ . --.,'--- \ \·. G GPP--6600 ~ ·.J sr{'"00£1: \ \ ~M~ ~-_j t t'-Ci . rP-4.. \~ "R~L£\Gt\ __.. ~o"Rrtt\ -;; REF.: SllEPI.AN BY CONOCO. SHEET NO. 33047, DAlEO lD-29-92. \ ) -·~- ,----------~ I I !_ __________ I ( 1) c:::::J 0 • 0 GP-1 EXPLANATION PROPERTY LINE APPROXIMATE LOCATION OF UNDERGROUND STORAGE TANKS AREAS v.lTH CONCRETE COVER PUMP ISLAND (NUMBER) CEDAR PRIVACY FENCE TYPE II MONITORING WELL TYPE Ill MONITORING WELL MONITORING WELL INSTALLED BY OTHERS APPROXIMATE LOCATION OF FREE PRODUCT COLLIECTION WELL APPROXIMATE LOCATION AND NUMBER OF GEOPROBE BORING/WELL JO 0 JO £ ~~'!AND EN"RONIIENTAL SER"CES OiARLOT!E. NORTH CAROLINA GEOPROBE COLLECTION POINTS CONOCO STORE NO. 33047 1122 NORTH RALEIGH ST. -ROCKY MOUNT, N.C. PRa'ARED BY I JOB NO. 56-4533 8 I I I I I I I I I I I I I I I I I I I g 0 ~ ~ ~ ... :g \ \ / / \ \ \ \ ~ REF.: SI'TEPLAN BY CONOCO. SHEET NO. 33047, DATED 1Q-29-92. / / ! - . .!g-- ~----------- ' I ~----------: ( 1) = 0 • (8.5) so------ EXPLANATION PROPERTY LINE APPROXIMATE LOCATION OF UNDERGROUND STORAGE TANKS AREAS WITH CONCRETE COVER PUMP ISLAND (NUMBER) CEDAR PRIVACY FENCE TYPE II MONITORING WELL TYPE Ill MONITORING WELL MONITORING WELL INSTALLED BY OTHERS APPROXIMATE LOCATION OF FREE PRODUCT COLLECTION WELL TOTAL BTEX CONCENTRATION (ug/1, 12/16/94) TOTAL BTEX ISOPLETH (ug/1, 12/16/94) (DASHED WHERE INFERRED) PREP BY 30 0 30 ~~!,'!AND EN"'RONWENTAL SER"'CES O<ARLOTlE. NORTH CAROliNA TOTAL BTEX ISOPLETH MAP CONOCO STORE NO. 33047 1122 NORTH RALEIGH ST. -ROCKY MOUNT, N.C. 0-IEO<ED 56-4533 FIGURE 9 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I \ \ / / \ \ \ \ \ (3:0) 4000~W­ ~ \ KEROSENE \ DISPENSER---1 ----I.)Si I . I £.J>.I \ v·~· "'1 '"""'-----~W-4 \,.--%} / 0~~-5 \ I -\/\--I / /'v<.-::::: / /l1 \ ~~/1---7 / I I '///. \ \ \ I I \LOCATION OF NEW)., ~ \ \KEROSENE UST_./-I--- \ 400 ./ I ! 1 ~ I I I __ ....---J- . \ -·~- ~----------, I I ._ __________ ! (1) = 0 • (3900) EXPLANATION PROPERTY LINE APPROXIMATE LOCATION OF UNDERGROUND STORAGE TANKS AREAS WITH CONCRETE COVER PUMP ISLAND {NUMBER) CEDAR PRIVACY FENCE ;TYPE II MONITORING WELL TYPE 111 MONITORING WELL MONITORING WELL INSTALLED BY OTHERS APPROXIMATE LOCATION OF FREE PRODUCT COLLECTION WELL BENZENE CONCENTIRATION (ug/1, 12/16/94) \ 4000--------BENZENE ISOPLETH {ug/1, 12/16/94) \ \ 1 / _.//···-' 0 JO APPROXIIIATB SCALE IN I'EET Ia ~~'Y AND EN~~WENTAL SER~CES OiARLOTTE. NORlH CAROI.JNA BENZENE ISOPLETH MAP I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I / \ \ \ \ \ \ I' ' ~ ~ • :g / \ 10,00 ~--- (15,000) 0 MW-2 ~ REF.: SITEPLAN BY CONOCO, SHEET NO. 33047, OAl[ll lQ-29-92. / r / (2200) /0 /. MW-8 / __ ./ EXPLANATION --· ~ --PROPERTY LINE / NOlES: \ j ./ ) . ,----------, I I !.._ __________ , ( 1) c=::J 0 • (8.5) 100------ 1) GROUND-WAlER SAMPLES COLLECTED FOR ANALYSIS ON DECEMBER 16, 1994. 2) CONTOUR INlERVAL AS SHOWN. 3) CONCENTRATIONS GIVEN IN ( ug/1) 4) MONITORING WELL MW-4 WAS NOT SAMPLED DUE TO A HEAVY PRODUCT SHEEN. 5) DEEP TYPE Ill WELL MW-5 NOT USED IN CONTOURING. APPROXIMA lE LOCATION OF UNDERGROUND STORAGE TANKS AREAS WITH CONCRElE COVER PUMP ISLAND (NUMBER) CEDAR PRIVACY FENCE TYPE II MONITORING WELL TYPE Ill MONITORING WELL MONITORING WELL INSTALLED BY OTHERS APPROXIMA lE LOCATION OF FREE PRODUCT COLLECTION WELL MTBE CONCENTRATION (ug/1, 12/16/94) MTBE ISOPLETH (ug/1, 12/16/94) (DASHED WHERE INi'ERRED) 30 0 30 ~ ~~'Y AND EN~MENTAL SER~CB OiARLOTlE. NOR1H CAROUNA PREP BY IITBE ISOPLETH IIAP CONOCO STORE NO. 33047 1122 NORTH RALEIGH ST. -ROCKY YOUNT, N.C. OiEO<ED 56-4533 F1GURE 11 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I \ \ / / \ \ \ \ --~- 1 ----------- I !_ __________ I 1>;<<~1 (1) =::::J 0 EXPLANATION PROPERTY LINE APPROXIMATE LOCATION OF UNDERGROUND STORAGE TANKS AREAS WllH CONCRETE COVER PUMP ISLAND (NUMBER) CEDAR PRIVACY FENCE TYPE II MONITORING WELL TYPE Ill MONITORING WELL MONITORING WELL INSTALLED BY OlHERS \ \ ~ (84.16) 0 MW-2 . 8.5 ~~:Z~t;;~~~'i:?~r-j\~'~\\. . 86 • \ APPROXIMATE LOCATION OF FREE PRODUCT COLLECTION WELL GENERALIZED GROUND-WATER FLOW DIRECTION ~ ! ~ :l! 85 \(88.41) \ 0MW-3 88 \ -1---. \ _;_----' ~ REf., SllEPLAN BY Cotmco. SHEET NO. 33047, DAlEO lQ-29-92. PUMP WllH LEAKY VALVE (87.98) 0' w:...6 r~:t88 // I I I 87 '\ \ / / (85.21) GROUND-WATER ELEVATION (FT., 12/16/94) 85-------. GROUND-WATER CONTOUR (FT., 12/16/94) JO 0 JO APPROXIIIATB SCALE IN t'E£1' NOTES: I. ~~'Y AND EN~~WENTAL ~= OiARLOTlE. NORTH CAROliNA 1) GROUND-WATER MEASUREMENTS MADE IN WELLS ON DECEMBER 16, 1994. ·J--------------------i 2) DEEP TYPE Ill WELL, MW-5, NOT USED IN CONTOURING. 3) CONTOUR INTERVAL = 1.0 FT. 4) GROUND-WATER ELEVATIONS REFERENCED TO AN ASSUMED SITE DATUM (TOP OF CASING MW-7 = 100.00 FT.) GROUND·WATER CONTOUR MAP CONOCO STORE NO. 33047 1122 NORTH RALEIGH ST. -ROCKY MOUNT, N.C. a-tEO< ED 56-4533 FlGUR£ 12 I I I I I I I I I I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 APPENDIX A TARGET SOIL GAS SURVEY REPORT-AUGUST 1994 February 6, 1995 Final I I I I I I I I I I I I I I I I I I I :: 't ·,~!. :., L- \ -·· SOIL GAS SURVEY & SOIL & GROUNDWATER SAMPLING CONOCO STORE #33047 ROCKY MOUNT, NORTH CAROLINA PREPARED FOR LAW ENVIRONMENTAL 2801 YORKMONT ROAD, SUITE 300 CHARLOTTE, NORTH CAROLINA 28208 PREPARED BY '· - TARGET ENVIRONMENTAL SERVICES, INC. 9180 RUMSEY ROAD COLUMBIA, MARYLAND 21045 (410) 992-6622 AUGUST 1994 TABLE OF CONTENTS EXECUTIVE SUMMARY Introduction Sample Collection and Analysis Quality Assurance/Quality Control (QA/QC) Evaluation Results Summary Figure I. Sample Locations Figure 2. Total FID Volatiles FIGURES TABLES Table I. Analyte Concentrations via GC/FID APPENDICES APPENDIX A -Field Procedures APPENDIX B -Laboratory Procedures APPENDIX C -Delectability & Terminology tt l 2 3 4 I I I I I I I I I I I I I I I I I I I I, I I I I I I I I I I I I I I I I I I I EXECUTIVE SUMMARY From July 14 to August 6, 1994, TARGET Environmental Se1vices, Inc. (TARGE1) conducted a soil gas survev and subsequent soil and groundwater sampling at the Conoco Slol'e #33047 on Raleigh Street in Rocky Mount, North Carolina. A total of 23 soil gas samples were manually collected from a depth of 4 feet. Direct-push, multiple-depth soil and groundwater sample collection was then guided by the results of the soil gas data and performed using a van- mounted hydraulic probe. The samples were analyzed on a gas chromatograph equipped with a flame ionization detector (GC/FID) for petroleum hydrocarbons. The objective of the survey was to determine the identity and concentrations of volatile petroleum hydrocarbons within the subsurface. Mapped analysis results indicate that there are high concentrations of petroleum hydrocarbons east of the pump islands and moderately low concentrations extending northwest from this location for 75 feet along East Grand Avenue. Moderate concentrations of petroleum hydrocarbons were also observed on the east side of the gasoline UST area with moderately low concentrations extending southeast toward North Raleigh Street. In the same areas, individual analyte concentrations were observed at proportions of Total FlO Volatiles concentrations which suggest gasoline contamination. tl TARGET Project MLC4 Introduction Law En vi ron mental ( L~w) contracted TARGET Envinmmental Setvices, Inc. (TARGET) to perform a soil gas survev and subsequent soil and groundwater sampling at the Conoco Stol'e #3304 7 on Raleigh Street in Rocky Mount, North Carolina. The site is an operating gas station and convenience store with associated gasoline and kerosene underground storage tank (UST) systems. The objective of the survey was to determine the identity and concentrations of volatile petroleum hydrocarbons within the subsurface. The soil gas survey was designed by TARGET upon arrival to cover the site wtth regard to potential sources of petroleum hydrocarbons within the subsurface. Samples were to be collected at a depth of 4 feet. Subsequent soil and groundwater sampling locations and depths were determined by LAW using soil gas analysis results. The field phase of the survey and follow-up sampling was conducted from July 14 to August 6, 1994. Sample Collection and Analvsis Soil gas samples were collected at a total of 23 locations at the site, as shown in Figure I. These soil gas samples were collected at the proposed depth of 4 feet. After soil gas sample analysis, subsequent sampling included 30 soil samples and 12 groundwater samples. A detailed explanation of the sampling procedures is provided in Appendix A. All of the samples collected during the field phase of the survey were analyzed according to EPA Method 8020 (modified) on a gas chromatograph equipped with a flame ionization detector (GC/FID), and using direct injection. Analytes selected for standardization were: I I I I I I I I I I I I I I I I I I I I -'-"""----. -----~--~------- I I I I I benzene toluene ethyl benzene meta-and para-xylene ortho-xylene TARGET Project HLC4 These compounds were chosen because of their utility in evaluating the presence of petroleum I products such as fuels, lubricating oils, and non-halogenated solvents. An explanation of the laboratory procedures is provided in Appendix B. I The tabulated results of the laboratory analysis of the soil gas samples are reported in I micrograms per liter (11g/l) in Table I. Although "micrograms per liter" is equivalent to "parts I per billion (v/v)" in water analyses, they are not equivalent in gas analyses, due to the difference in the mass of equal volumes of water and gas matrices. The xylenes concentrations reported I' in the data table are the sum of the m-and p-xylene and the o-xylene concentrations for each I sample. Soil and groundwater samples were submitted to Law on site for independent laboratory I analysis. I Qualitv Assurance/Qualitv Control (QA/Qq Evaluation I Soil Gas Field QA/QC Samples I Field control samples were collected at the beginning and end of each day's field activities and after every twentieth soil gas sample. These QA/QC samples were obtained by filtering I ambient air through a dust and organic vapor filter cartridge and encapsulating as described in I the "Field Procedures" in Appendix A. The laboratory results are reported in Table I. Concentrations of all analytes were below the reporting limit in all field control samples. I I 2 TARGET Project MLC4 Soil :md Groundwate•· Field QA/QC Samples Field control samples were collected at the beginning and end of each day's field activities. These QA/QC samples were obtained by rinsing distilled water through the decontaminated bailer or sampling tube into sample vials. These samples were submitted along with the others as described in the "Field Procedures" in Appendix A. Laborato1v QA/QC Samples To document analytical repeatability, a duplicate analysis was performed on every tenth field sample. A laboratory blank of nitrogen gas was also analyzed after the tenth field sample. The results of these analyses are reported in Table I. The duplicate analyses were within acceptable limits. Concentrations of all analytes were below the reporting limit in all laboratory blanks. Results In order to provide graphic presentation of the results, Total FID Volatiles concentrations in Table I have been mapped and contoured to produce Figure 2. Dashed contours are used where patterns are extrapolated into areas of less complete data, or as auxiliary contours. Map sample points with no data shown indicate that the analyte concentrations in the sample were below the reporting limit. An explanation of the terminology used in this report is provided in Appendix C. Total FID Volatiles (Figure 2) were observed at a high concentration in Sample 4-11, which was collected east of the pump islands. Moderately low concentrations were observed for 75 feet northwest of Sample 4-11 along East Grand Avenue. Moderate Total FID Volatiles concentrations were sampled on the east side of the gasoline UST area, and moderately low concentrations extending southeast of this area towards North Raleigh Street were also observed. 3 I I I I I I I I I I I I I I I I I I I -.-----.~- I I I I I I I I I I I I I I I I I I I TARGET Project MLC4 In the same areas, individual analyte concentrations were observed at proportions of Total FID Volatiles concentrations which suggest gasoline contamination. Sun1marv • • • Mapped analysis results indicate that there are high concentrations of petroleum hydrocarbons east of the pump islands and moderately low concentrations extending northwest from this location for 75 feet along East Grand Avenue. Moderate concentrations of petroleum hydrocarbons were also observed on the east side of the gasoline UST area with moderately low concentrations extending southeast toward North Raleigh Street. In the same areas, individual analyte concentrations were observed at proportions of Total !'10 Volatiles concentrations which suggest gasoline contamination. 4 • 4--21 \ • 4--22 PROPERlY UNE • 4--20 APPROXII.IA 1E EXlENT Of FORI.IER KEROSENE TANK EXCAVATION • 4--23 ~ 4--18. e 4--19 \--\~TOR~ I I 1...../, KEROSENE I --' DISPENSER~~---,\ FENCE i-"11 I II 1 \ \ \ . \. .-\t~H ~·~~it\ . ._ 3 , I TANK1 \ ___ _, I \AREA I I 11 APPROXIMA TIE \ I 1_-J 1--· V EXlENT NEW e ;:;· ----.-, 1KEROSENE TANK --...., ._51 \ EXCAVATION CONCRETIE \ I \ \ 0 15 30 ~iii' -'~1 \.----' . ~ 4--6 • 4--7 • 4--14 « • 4--13 • 4--15 0 PUMP ISLANDS PUMP WITH UEAKY VALVE 0 • 4--8 -- • 4--12 0 • 4--16 ~ I.IW I FEET FIGURE 1. Sample Locations e SOIL GAS SAMPUE LOCATION ~ MONITORING v.aL 8 EIIWIOIIKINTAL SER'IICJ:!I, INC. N 1 CONOCO #33047 ROCKY MOUNT, NORTH CAROLINA I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I .. 4-21 \ \ -- . .. 4-20 " ) I • 4-22 0 15 30 1~1~1 F£ET .. 4-23 e SOIL GAS SAMPLE LOCATION ~ MONITORING WELL e ENVIROIIKZIITAL SJ:RVIC!:!!, INC. PROPERlY UNE / 7 159 I I :1./ \ ~ • 4-7 \ \ .. .2+0 : J .rx>O ' \ \ 2 .J47 .. ,, 4-8 FIGURE 2. Total FID Volatiles (calc'd 1'9/1) N t CONOCO #33047 ROCKY MOUNT, NORTH CAROLINA TARGET Project MLC4 TABLE 1 ANALYTE CONCENTRATIONS VIA GC/FID (\-IQ/1) ETHYL-TOTAL FlO SAMPLE BENZENE TOLUENE BENZENE XYLENES VOLATILES" REPORTING LIMIT 1.0 1.0 1.0 1.0 10 4-1 <1.0 <1.0 <1.0 <1.0 10 4-2 <1.0 <1.0 <1.0 <1.0 <10 4-3 14 191 11 17 2,140 4-4 305 993 139 85 45,360 4-5 <1.0 3.9 <1.0 <1.0 640 4-6 11 9.7 5.4 17 2,820 4-7 40 91 173 79 6,060 4-8 <1.0 1.0 <1.0 <1.0 2,347 4-9 <1.0 <1.0 <1.0 <1.0 95 4-10 <1.0 <1.0 <1.0 <1.0 <10 4-11 8,260 19,800 1,142 4,690 338,152 4-12 128 931 342 2,060 13,000 4-13 1.3 26 2.8 12 1,240 4-14 1.2 8.2 1.8 11 59 4-15 34 49 5.9 19 653 4-16 21 86 38 11 4,270 4-17 <1.0 1.8 <1.0 1.7 13 4-18 <1.0 1.1 <1.0 1. 7 <10 4-19 <1.0 <1.0 <1.0 1.2 <10 4-20 <1.0 3.4 <1.0 1.2 72 4-21 <1.0 1 .1 <1.0 <1.0 <10 4-22 <1.0 1 .1 <1.0 1.4 <10 4-23 <1.0 <1.0 <1.0 <1.0 <10 FIELD CONTROL SAMPLES 4-101 <1.0 <1.0 <1.0 <1.0 <10 4-102 <1.0 <1.0 <1.0 <1.0 <10 4-103 <1.0 <1.0 <1.0 <1.0 <10 ~ CALCULATED USING THE SUM OF THE AREAS OF AlL INTEGRATED CHROMATOGRAM PEAKS AND THE INSTRUMENT RESPONSE FACTOR FOR TOLUENE 1-1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I TARGET Project MLC4 TABLE 1 ANALYTE CONCENTRATIONS VIA GC/FID (~gil) ETHYL- SAMPLE BENZENE TOLUENE BENZENE REPORTING LIMIT 1.0 LABORATORY DUPLICATE ANALYSIS 4-7 4-7R 4-17 4-17R LABORATORY BLANKS 4-78 4-178 40 39 <1.0 <1.0 <1.0 <1.0 1.0 91 88 1.8 1.7 <1.0 <1.0 1.0 173 164 <1.0 <1.0 <1.0 <1.0 TOTAL FlO XYLENES VOLATILEs• 1.0 79 64 1.7 1.9 <1.0 <1.0 10 6,060 5,850 13 15 <10 <10 • CALCULATED USING THE SUM OF THE AREAS OF ALL INTEGRATED CHROMATOGRAM PEAKS AND THE INSTRUMENT RESPONSE FACTOR FOR TOLUENE 1-2 APPENDIX A FIELD PROCEDURES Soil Gas To·collect the samples a 112 inch hole was produced to a depth of approximately 4 feet by using a drive rod. Where pavement was present, a rotary hammer was employed for penetration :ior to using the drive rod. The entire sampling system was purged with ambient air drawn through an organic vapor filter cartridge, and a stainless steel probe was inserted to the full depth of the hole and sealed off from the atmosphere. A sample of in-situ soil gas was then withdrawn through the probe and used to purge atmospheric air from the sampling system. A second sample of soil gas was withdrawn through the probe and encapsulated in a pre-evacuated glass vial at two atmospheres of pressure (IS psi g). The self-sealing vial was detached from the sampling system, packaged, labeled, and stored for laboratory analysis. Prior to the day's field activities all sampling equipment, slide hammer rods and probes were decontaminated by washing with soapy water and rinsing thoroughly. Internal surfaces were flushed dry using pre-purified nitrogen or filtered ambient air, and external surfaces were wiped clean using clean paper towels. Soil To collect the samples, a van-mounted hydraulic probe was used to advance a 12" long 1- 5/8" OD steel sampling tube (equipped with an acetate liner and a piston stop tip) attached to connected 3-foot sections of 1-3/8" OD threaded steel casing (EW rod) down to the sampling depth. An electric hammer drill was used to penetrate pavement where necessary. The piston stop was then released and the pipe driven an additional foot, allowing soil to enter the sample tube. The sampling tube was retrieved and the liner removed from the casing·. The sample was relinquished in the liner to the client for analysis by an independent laboratory. The sampling I I I I I I I I I I I I I I I I I I I I I APPENDIX A I tube was decontaminated by rinsing with a solution of Alconox and distilled water prior to reuse. I I I I I I I I I I I I I I I I Gmundwatet· To collect the samples a the hydraulic probe was used to advance E\V rod to the sampling depth. An electric hammer drill was used to penetrate pavement where necessary. Where borehole collapse was not a problem, the steel casing was removed and a 5-foot section of I" diameter slotted PVC pipe connected to one or more 5-foot sections of PVC riser pipe was inserted to the full depth of the hole. The pipe was allowed to sit for a period of time to allow groundwater to fill the pipe. Where borehole collapse was a problem, once the steel casing was in place, groundwater was allowed to fill the pipe. With either method, a water level sensor was used to detect the surface of the groundwater table and to ensure that a sufficient amount of water was present to complete a sample. The water level sensor was removed and a 21" long by 7/16" 0.0. stainless steel bailer was used to collect the sample. Samples were placed in 40 ml, teflon septum-sealed glass vials and acidified to pH 2 using a 50% hydrochloric acid solution, sealed, labeled and relinquished to the client for independent analysis. Prior to the day's field activities and after collection of each sample, the steel casing and the bailer apparatus were decontaminated by washing with Alconox (a biodegradable, laboratory grade detergent), rinsing with distilled water and drying with filtered ambient air to ensure discrete sampling. New PVC was used for each sample. APPENDIX B LABORATORY PROCEDURES The analytical equipment was calibrated using a 3-point instrument-response curve and injection of known concentrations of the target analytes. Retention times of the standards were used to identify the peaks in the chromatograms of the field samples, and their response factors were used to calculate the analyte concentrations. Total FID Volatiles values were generated by summing the areas of all integrated chromatogram peaks and calculated using the instrument response factor for toluene. Injection peaks, which also contain the light hydrocarbon methane, were excluded to avoid the skewing of Total FID Volatiles values due to injection disturbances and biogenic methane. For samples with low hydrocarbon concentrations, the calculated Total FID Volatiles concentration is occasionally lower than the sum of the individual analytes. This is because the response factor used for the Total FID Volatiles calculation is a constant, whereas the individual analyte response factors are compound specific. It is important to understand that the Total FID Volatiles levels reported are relative, not absolute, values. I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I APPENDIX C DETECfABILITY & TERMINOLOGY Detectabilitv The soil gas survey data presented in this report are the result of precise sampling and measurement of contaminant concentrations in the vadose zone. Analyte detection at a particular location is representative of vapor, dissolved, and/or liquid phase contamination at that location. The presence of detectable levels of target analytes in the vadose zone is dependent upon several factors, including the presence of vapor-phase hydrocarbons or dissolved or liquid concentrations adequate to facilitate volatilization into the unsaturated zone. Teominology In order to prevent misunderstanding of certain terms used in TARGETs reports, the following clarifications are offered: Analyte refers to any of the hydrocarbons standardized for quantification in the chromatographic analysis. Anomaly refers to an area where hydrocarbons were measured in excess of what would normally be considered "natural" or "background" levels. Elevated and significant are used to describe concentrations of analytes which indicate the existence of a potential problem in the soil or ground water. Featul'e is used in reference to a discernible pattern in the contoured data. It denotes a contour form rather than a definite or separate chemical occurrence. Indicates is used when evidence dictates a unique conclusion. Suggests is used when several explanations of certain evidence are possible, but one in particular seems more likely. As a result, "indicates" carries a higher degree of confidence in a conclusion than does "suggests." APPENDIX C Occun-ence is used to indicate an area where chemical compounds are present in sufficient concentrations to be detected by the analysis of soil vapors. The term is not indicative of any speciftc mode of occurrence (vapor, dissolved, etc.), and does not necessarily indicate or suggest the presence of "free product" or "phase-separated hydrocarbons." Repo1ting Limit refers to the minimum concentration reported for each analyte. · 'adose zone represents the unsaturated zone between the ground water table and the ground surface. The terms "low", "moderate" and "high" levels, when applied to Total flO Volatile petroleum hydrocarbons, are relative terms based on TARGETs analysis of thousands of soil gas samples from hundreds of sites. Less than I 00 Jlg/1 can be considered very low. Levels between 0 and I 000 Jlg/1 can be considered typical "background" levels often observed at fuel handling facilities. "Moderate" levels include concentrations in the range of 25,000 to 50,000 Jlg/1. Levels greater than I 00,000 Jlg/1 are deemed "high", while those greater than 750,000 11gll are considered to be very high. I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 APPENDIXB BORING LOGS February 6, I 995 Final ·-----·--·--------·--- I I I I I I I I I I I I I I I I I I I KEY TO CLASSIFICATION & SYMBOLS CORRELATION OF PENErRATION RESISTANCE WITH RELATIVE DENSITY AND CONSISTENCY No. of Blowa, N Relative Dcnaity• No. of Blowt, N Conaiaency• .. 0-4 . Vcry-Loo.c.::·· ••••••••••••••• •• ·o >t•••···••• Very SoiL•·· 5 -10 L<>ooe SILTS 2 -4 Soft •••••• IF20•···· Firm·:··:··· ••••••• so• a•· Fum:·:::. SANDS 21 -30 Very Finn AND 9 -15 Stiff 0 31:50 I· · ... · . i· 16ho, ·:.:. Vcry·Sdrf::::·:·· I •.. Dei'l&·.··:·· .. CLAYS 50+ Very Dente 30+ Hard SYMBOLS DESCRIPTIONS I Undiaturbcd Sarrq:~le (UD) Recovered Ill Undillturbed Sample (UD) Attempted, Not Recovered 5012" No. of Blowa (50) to Drive the Split-Tube Sampler a Number of lnchca (2) BQ,BX(BW},NQ,NX(NW), Coring Bit SW:a 'Which Yield Corea of Diameter 1-7/16, 1-21/32, HQ,PQ 1-7/8, 2-5132.2-1/1, and 3-ll/32lnchca. Rcapcctivcfy REC Recovery -Length of Con: Recovered Divided by Lcngt.b Cored (Percent) Rocl:lc Quality DcaipaUoo-Lcogtb of R=ovcrcd Core Cooaiaing of RQD Moderately Hard or Harder Core Scrmcau 4 or More lncbu Looa Divided by lhc Length Cored (Perccm) -Water Table Approximately 24 Houn or More After Drilling ----Water Table at T.L.rDe of Drilling (Within 1 Hour) ~ Lou of Drilling fluid Grout r ~ ~ Bemonitc k ~ r..::: WELL DIAGRAM 1: \;; I·•••· ILl Saod hl 12 [:; Slotted Screen OVM Orpnic Vapor Mcuuremem PPM Partl PeT Million ND Not Dctcctcci SAMPLING PROCEDURES The Standanl Penetration Resistance is the Number of Blows of a 140-Pound Hammer Falling 30 Inches To Drive a 2-Inch O.D .• 1.4-lnch LD. Split-Tube Sampler One Foot. • Terminology may be altered if presence of gnvel, cobbles or boulders interferes with accurate measurement of standard penetration resistance. TEST BORING RECORD ELEVATION DEPTH OVM IFEETl IFEETl DESCRIPTION WELL DIAGRAM PPM l 92.97 ; ; 3.5 ~?o~e U'!_h_tGray Sllghtlvc;layoy Flna to Medium SAND-Some Organics 87.97-- 8.5 ~i_rm Lig.!'t. Gray Fine to Medium SAND Strong Odor I 82.97-- J13.5 Loose Light Gray Medium to Coarse SAND 77.97- 18.5 ~~~m Whl:•s~:~vFCiayoy SiLT 07 on = -~ ~;>d~_o T I o<.20.0 Foot Monitoring Well Installed to 19.0 Feet Ground Water Measured at 7.8 Feet on 1 2/16/94 67.97- 62.97-- 57.97-- 52.97 REMARKS: See attached Key Sheet for explanation of symbols and abbreviations used above. ~ 2 ·····.1~ I~ / I~ .· 1 [::::1 ,· - 1:::: jtl~ 36 I= Iii lxl~l \ :· ,:::: 1:::: 1:::: ':::: 1:::: 1:::: 35 1:::: I~ 1:::: 1:::: 1:::: 1:::: !;;; I 22 DRILLED BY LOGGED BY CHECKED BY PAGE 1 OF 1 Law Eng. KJM CLC I I I I I I I DATUM ELEVATION: 92.72 Ft. HEIGHT OF RISER: ·0.25 Ft. PENETRATION-BLOWS PER FOOT I I I ~ ,.-i I I I I ' I 1·-: : I i ' ' I I ! i I I I I I I I I i ' I I I ; I ' ' i I I I ..... j - ' ' BORING NUMBER DATE STARTED DATE COMPLETED JOB NUMBER ~ --------- -- --- ' ! I ! i ' I I ! ! I I I I I I ' I I I I I I I i I I .... ···-·· -·· i ! ' I I 1 I ' i i I ' ' I I I ' I I I I ' I ' MW-1 12/01/94 12/01/94 56-4533 ' ' Law Engineering ~ I I I 6 I I 1 I 6 I I 6 I I I I I I I I I I I I I ! ; ~ I I I I I I I I I I I I I I I I I TEST BORING RECORD ELEVATION DEPTH (FEETI !FEET! DESCRIPTION 100.80 3.5 Firm Tan Gray CLAY l5.80-- 8.5 Very Stiff Tan Gray Micaceous Clayey SILT QO RO - 113.5 ~'-~ Brown Gray Medium to Coarse SAND Odor o• on j18.5 Vo,y Stiff G'ay Clayey SILT 80.80- 123.5 Hard White Gray Clayey SILT ; on. 25 Boring Terminated at 25.0 Feet Monitoring Well Installed to 24.0 Feet Ground Water Measured at 16.58 Feet on 12/16/94 70.80- R5 on - 60.80 REMARKS: See attached Key Sheet for explanation of symbols and abbreviations used above. OVM WELL DIAGRAM PPM 220 >: ·.·· 440 t§i : ( ..•• 1=: • 1=: 1=: == == == == != I= 178 1=: 1=: I= 1=: - 1=: 1=: 1=: 1=: I= 1=: 20 I== = :=: I~ 1=: 1=: L= DRILLED BY LOGGED BY CHECKED BY 4 PAGE 1 OF 1 Law Eng. KJM CLC I I I ! I I DATUM ELEVATION: 100.74 Ft. HEIGHT OF RISER: -0.06 Ft. PENETRATION-BLOWS PER FOOT 16 20 •o 60 ! i I : I I I ! I I . I I • . i ! I I I I I I ' ! I I I I I I i J I I ; ! I I I ! I I I ' I ' ' ' . i I I I ' i ' I I I i i I I ' ' I ' -·----I -·-_i _____ , --·--··-···- I I I I i I ' ' I I I ' i J I • ' ' ! ! ! I ' i I I I ' I I BORING NUMBER DATE STARTED DATE COMPLETED JOB NUMBER I I ! ' I I I ' ! I I ' I . ; : I ' I I I I I i I I I J I ! I I I ! i ! I ! ! ' MW-2 11/30/94 11/30/94 56-4533 Law Engineering 7 J 0 ' ' 6 ' 0 ~ ~ ' TEST BORING RECORD ELEVATION DEPTH OVM IFEETJ (FEET) DESCRIPTION WELL DIAGRAM PPM U./ I. B Inches Asphalt 3.5 Fill-Clay, Wood, Roots oo n<. 5. Firm Brown Gray Slightly Silty CLAY 900 8.5 I' . Very Stiff White Brown Gray Slightly Silty I= 355 "' n< CLAY 1::: 1::: 1::: I= 1::: 1::: I= 13.5 Very Firm White Brown Gray Slightly Clayey 1::: 1::: 7 158 Fine Grained SAND I~ 38.05-- 1::: I= I= 1::: 1::: j18.5 . 1::: ~-ery Firm Brow~ -~ed Gray Slightly Clayey 1::: Fine Grained SAND )··I= 145 R10~ -1::: • !::: ,. 1-= 1::: 1::: 1::: 1::: [23.5 1::: Firm White Gray Clayey SILT I= 7o n<. h< 2 ~~ri~g I i j at25.0 Feet Monitoring Well Installed to 24.0 Feet Ground Water Measured at 14.23 Feet on 12/16/94 70 - 68.05-- 63.05 REMARKS: See attached Key Sheet for explanation of symbols and abbreviations used above. DRILLED BY LOGGED BY CHECKED BY PAGE 1 OF 1 1------ Law Eng. KJM CLC ! I I I DATUM ELEVATION: 102.64 Ft. HEIGHT OF RISER: -0.41 Ft. PENETRATION-BLOWS PER FOOT , E I I ' I I I ! I I I I I , ' . ; . -;·- I I i ' I I i I i j I 1 I I I ! i i i I I I I I I I ' ' I I I ' ' ! I I I ' I ! I i I I ! ' I I ' I i PI ' i I i I I ' I I i ' I I I I I I I ' i ' ' ' • I I~ I I ' i I I ! I ' i ' ' I ' I ' ' I I I I I I i I ' I ' I I J i -. :--i ' -- i . ; , I ' I i I ' I I I I I i I BORING NUMBER DATE STARTED DATE COMPLETED JOB NUMBER ------== ::' ~ i I i I ' ! ' I I i ' i i I ! i i ' : I ' I I I ' i I I I ! MW-3 11/22/94 11/22/94 56·4533 • • Law Engineering ------------------------------ ,, 8 2 2 2 I I I I I 6 I .I I I 'I I I I I I I I I I I ~ I ) l ~ I ~· I I I I I I I I I I I I I I I TEST BORING RECORD ELEVATION DEPTH OVM (FEET! (FEET! DESCRIPTION WELL DIAGRAM PPM J103.04 oo. QO oo n. 0 _4 ~Inch Asphalt 0.8 1 ~ lnchas 5 Inches Base -Crushed Stone 4 ·0 rum Brown Gray Silty CLAY - /:: I 8·5 1----,Hc;---ard;-;1 G:--ray•,-;:;-c: Bm-:c:-wn1-;:c Sll=ightl;:-:-;:-yS:-:an::;dy:-:, c=lay:-::-;eyS::;;IL-:;:T,...-jl 1=1 ' 1:: ' 1:: 1:: 1::: - 3 · 5 f->. :;::::~rr::-y,:-;::: Fir=-'m, W~h;;:-ite:Z: G •ra::-y:-;Co;o::a:;:rs::a-;t-;:o-;:M;;:e:;;d;;:iu;;:m::----J Silty SAND 1::: 1::: I= @ 1::: 1:: 1::: I= 1:: ., 04 -I~··· ', 8 · 5 1--=-Fll rm ---,G::-r-ay--=c-oa-r-sa--=G-ra71 n-e-:d-=c Sill .,-tYI-;:-S A=ND;:----1 1 . \ ~~ t:: I 1::: . . I:::: ln·~~~~-==-------1 ~----Very Stiff Gray Clayey SILT 7R 04 125 73.04-- 68.04-. 63.04 ~~ri~g 1 at 25.0 Feet Monitoring Well Installed to 24.0 Feet Ground Water Measured at 14.56 Feet on 12/16/94 ' 1::: 1::: 1::: I= 852 693 "2075 REMARKS: See attached Key Sheet for explanation of symbols and abbreviations used above. DRILLED BY LOGGED BY CHECKED BY PAGE 1 OF 1 Law Eng. KJM CLC I DATUM ELEVATION: 102.77 Ft. HEIGHT OF RISER: ·0.27 Ft. PENETRATION-BLOWS PER FOOT I I I ! .. i ' i I : I ' i I I I i i I I ',.-+ I I ' ' ! : I ! I i ' I I I I I I r I I T' ' . II I I 'I I I. I I I ' I I I I I I I I I ! I I I I I BORING NUMBER DATE STARTED DATE COMPLETED JOB NUMBER I I I , I i I I I I ! I I I I I I ' ! i I I I MW·4 11122/94 1 1122/94 56·4533 Law Engineering ' I 6 " 0 ~ u " 0: m 3 ~ " M m ~ " M m • m ~ TEST BORING RECORD ELEVATION OEPTH (FEETJ (FEETJ DESCRIPTION WELL DIAGRAM OVA PPM 103.01 No Samples Taken 98.01-- 93.01- 88.01-- 83.01-- 78.01-- ZB. S f--::-S::-:tif7t ;:-W;;-h.::-oto--cG::-,-ay--::::CI-ay_o_y 75;:-IL:;-T -w.,-it;-h 75,-ho-;:-11---l Fragments. 73.01-- 68.01- 63.01 33 5 r--. ------. Stiff White Grey Clayey SILT with Shell Fragments. - 385h-------· Herd White Gray Clayey SILT with Very Weathe ad Rock Material. REMARKS: - 16 2.5 17 DRILLED BY LOGGED BY CHECKED BY PAGE 1 OF 2 DATUM ELEVATION: 102.86 Ft. HEIGHT OF RISER: -0.15 Ft. PENETRATION-BLOWS PER FOOT I 0 6 10 16 20 40 60 so 100 I I I I I I ' I I I I : ' I I I I ! ' I ' ' ! ' .! j _____ !. ! ! ' ! i ! I I I I I I I i '1 I ' I ! I i I i I ! I I i I I I I I l-H i I I i Iii I I I 1---t--+---1' 1-----1 ! -~-! -~ I I ~--, . I ' . ' ' I ' . I ! I I ' ! . ! • j i I I I I I I 1 ! I ' I I ' i I i ! i I I I i I ! ' I ' ---,--! T-, ---~-·:-T! -~~---i-- 1 I I I I I (T I ! II i i i ' I ! ' ' ' 1 __ --JI_.....JI __ [_[ ___ L_L~_i _I I_ i ! I i i I I i I I i i 1,: I i I ~ I I I I i i I I I I i ! I I I I I I ! i ! ----~---+ T ·; T ~---:--r··; I i il 'II I ill 11'-I I f'--1 I j I I I I I I I I I I 'I I 44 I LAW JKM CLC BORING NUMBER DATE STARTED DATE COMPLETED JOB NUMBER MW-5 11/28/94 1 11/30/94 56-4533 I LAW ENGINEERING I I I I " I ~ ~ , " " • I ~ " • • • ~ " I I I I I I I I I I I I I I TEST BORING RECORD ELEVATION DEPTH !FEET) !FEET) DESCRIPTION OVA WELL DIAGRAM PPM 63.01 us~ - - - - - - -' Very Dense White Brown Gray Partially Weather d 13 58.01- 53.01-- Rock MateriaL Micaceous with Some Clay. Four Inch PVC Casing Installed to 40 Feet. No Samples Collected to Termination Depth. 53 . 0 +--.,.....,..,-,-,T,.,--,.. Boring erminated at 53.0 Feet. = 48.01- 43.01-- 38.01- 33.01- 28.01- 23.01 REMARKS: Monitoring Well Installed to 53.0 Feet Ground Water Measured at 4.39 Feet on 1 2/16/ 4. DRILLED BY LOGGED BY CHECKED BY PAGE 2 OF 2 PENETRATION-BLOWS PER FOOT 0 s 10 16 20 40 60 90 100 I i -ni-t-1--i----il-t--+-1 Hp·- 1 I , ! I I I I t ! i I i i I I I I i ! I I I i I I 1----j---:---i---·-----:-·-~-~-!-l~--- i I [1 I I i i' I i I I i I I I I l---t-l---t--1:---1-H-l i ; I I l LAW JKM CLC I I I I I I I H ~~~-- 1 I I I 1 I -n- 1 I 1 I I 1 i I I ' I I I I I i I I I ! 1 I I i l I I I I I : 1-i-~~+t-1~- i I i I I i I BORING NUMBER DATE STARTED DATE COMPLETED JOB NUMBER MW-5 11/28/94 11/30/94 56-4533 f--.-.-:: • ' LAW ENGINEERING TEST BORING RECORD ELEVATION DEPTH OVM !FEET! \FEET! DESCRIPTION WELL DIAGRAM PPM ~ 100.08 0.7 ~/2 Inches Asphalt 5 Inch Base 4 ·0 Very Stiff White n Gray Silty CLAY ~ ~ ; s 95.08-- i ' 90.08- 85.08- 80.08- r ....•.•... ·-·· !E .-· ~~~~~~~~A-f---j•;:u:11~=r 8·5 l Very Stiff 'Gray Silty CLAY /[~1 ,. ·. \?i l:=:r I I= - 3 ·5 1--:-Lo-:-o-:s-:-e""T"'a~n= G 'ra=y-:C;:-o:::a=rs=e-:, S;:;lh:::;:i 'gh~tlly -:-,;:-;;; s 'il t =Y,-;;-; S A-;:;;:ND;--j - I= I= ~ = ;= ·= = i= I= I= I~ I= ~=-~~~~--~~~~~~~· I= 8 ·5 l=irrn Gray Very Coarse Grained Silty SAND !=: -...... I I= I= I= ~ 1 23·5 Firm Grey Clayey SILT 75.08-1""· T "" 25o F ;•" ~?"~g at . eet Monitoring Well Installed to 22.0 Feet Ground Water Measured at 11.83 Feet on 12/16/94 70.08-- REMARKS: See attached Key Sheet for explanation of symbols and abbreviations used above. Note: No OVMs collected PAGE 1 OF 1 DRILLED BY LOGGED BY CHECKED BY DATUM ELEVATION: 99.81 Ft. I HEIGHT OF RISER: ·0.27 Ft. PENETRATION·BLOWS PEA FOOT I ~ '0 60 I i : I I : I ' I I ' I I I I i I I ' ' I I I I I I ' I ' : ... 2 'I ! ;-I ' • i ' I ' 1 i ri-1 --+-': I 1-----:+ .. : ...... : ..... I ,I I 1--+--~-i-tl -H--t--+-f----H-T--t--1 " I I 1--i--11-++--- Law Eng. KJM CLC I I I ' 1 ' ' ' ' I i ' I I ' I 1 I ' ' I ;--j ... BORING NUMBER DATE STARTED DATE COMPLETED JOB NUMBER --.=: .:::.. ----- -:' "': I I ' ' i i ' I I I I I I !-_! I I I ' ' I I I ' I ! I ' MW-6 11/22/94 11/22/94 56-4533 " '" Law Engineering I 'I I I I I I I I I I I I ~ ~ ~ ~ ~- ~ \. ~ I I I I I I I I I I I I I I I I TEST BORING RECORD ELEVATION DEPTH IFEETI lFEETI DESCRIPTION 1100.20 0.4 "'-2 1_12 Inches As£halt 1.7 2 1/2 lnchas 1 Foot Base • Sand and Gravel Mx 3.5 Stiff Red/Brown Gray Silty CLAY 95.20-- 8.5 Very Firm White Gray"' Slightly Silty Clayey Fine to Medium SAND QO ?0· - 13.5 Loose Tan Grav Fine to Medium SAND i 85.20 118.5 Loose White Gray Slightly Clayey Medium SAND 80.20- 123.5 Stiff White Gray Clayey SILT 7" 20· 15 ~~ri~_g Terminated at 23.00 teet Monitoring Well Installed to 22.0 Feet Ground Water Measured at 14.81 Feet on 12/16/94 I 70.20 "" ?0 - 60.20 REMARKS: See attached Key Sheet for explanation of symbols and abbreviations used above. OVM WELL DIAGRAM PPM 448 I 'I= <~ 1=1· El i 525 = = I= i' ·r= -I= I= I~ 1::: I=' _,;327 I=' 1::: I= '=' = = I= I=:= I= 30 I=' ltl=. I= I I=' l.= 5 DRILLED BY LOGGED BY CHECKED BY PAGE 1 OF 1 Law Eng. KJM CLC i ' I . : I i i DATUM ELEVATION: 100.00 Ft. HEIGHT OF RISER: -0.20 Ft. PENETRATION-BLOWS PER FOOT e -' I I I I ,, I I I I I I , i I I ' I I I I ' I I i I I I I .. .. _,_ .!. i I ' ' ; ' I ~ . ; -' I I I I I ' ' l i I I I I I BORING NUMBER DATE STARTED DATE COMPLETED JOB NUMBER --~-- --- ' I i I I i ' t ' I .. ! I ' I ' I I ' I I ; : I I I I i I I I I I ---!----!--· i ' I I , I I I I I i I I I ' I MW-7 11/29/94 11/29/94 56-4533 . . Law EnQineering 2 ' • 12 TEST BORING RECORD ELEVATION DEPTH (FEET) !FEET) DESCRIPTION l 97.98 1.0 _ 3 1/2 Inches Asphalt 8 Inches Base-Send end Gravel Mix ~ ; 3.5 ; Loose Gray Tan Micaceous Slightly Clayey ! : 92.98-Fine to Medium SAND 8.5 ~i~~-~~ite Tan. G~ay Clayey Medium Grained SAND Strong Hydrocarbon Odor, Some Rock 87.98--Fragments J13.5 ~~~~n8ed;AND n Slightly Silty Medium 82.98-Odor 18.5 Very Firm Gray Medium Grained SAND No Odor 77.98- 122.0 Boring Terminated at 22.0 Feet Monitoring Well Installed to 21 .0 Feet Ground Water Measured at 13.22 Feet on 12/16/94 72.98- 67.98-- 62.98-- 57.98 REMARKS: See attached Key Sheet for explanation of symbols and abbreviations used above. OVM WELL DIAGRAM PPM I 612 I. :.~ I=· . ··-.···· ~~ . ::: < :::1 I~ 503 I ~~~ . I= I= j::: I= I= - I= I= 58 1::: ::: ::: ::: ::: :~ 1::: ·•· 1::::: ~····· { 1::: 21 1/ ~ DRILLED BY LOGGED BY CHECKED BY PAGE 1 OF 1 Law Eng. KJM CLC I I DATUM ELEVATION: 97.66 Ft. HEIGHT DF RISER: -0.32 Ft. PENETRATION·BLOWS PER FOOT I I i i ' i l I I I ' i t--: ! I i 1 r I I ! I I I I ! i i ' i I I I BORING NUMBER DATE STARTED DATE COMPLETED JOB NUMBER ~"C. ------::' "=; I I I I I I I I I I : i : I I I I I I i I ! I I i I I I I ! I I I ' I I I I l 60 80 ! I I I i ' i I I L ' ! I ' I I I ! i I I I I i I ! i ' ! ! . I I I I I ' I I I I I I I I I I I • I I I II 1 I I i I ' I ' ' I ! I I L MW·8 11/29/94 11/29/94 56-4533 • • Law Engineering I I I 7 I I 1 I 8 I I ,.. I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 APPENDIXC MONITORING WELL INSTALLATION RECORDS NCDEHNR FORM GW-1 February 6, 1995 Final I I I I I I I I I I I I I I I I I I I NORTti CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES DIVISION OF ENVIRONMENTAL MANAGEMENT. GROUNDWATER SECTION P.O. BOX 27687 ·RALEIGH. NC 27611·7687 PHONE {919)733·3221 WELL CONSTRUCTION RECORD DRILLING CONTRACTOR --'L::.:U.:..:W..:_.::..tr'-"1g,_.,.:..:n-"'ee,_,_(_,_/ (1'--93-------- DRILLER REGISTRATION NUMBER ~32.. 1 WELL LOCATION: (Show sketch at the locatiOn below) Nearest Town: Rock'i Mourd , N .(. ~Road. Commumty. or Subdivision and Lot No.) ,, "C "' 2. OWNER ·-0'" lC lllv' ADDRESS I)O"J;;Wo (;00 rloV!i<-Ql).il't f;~fljvlci- J.., . (Street QJ Route No_) ,)'1-.?tviV l ~ 11D7'j City or Town State Zio Code 3. DATE DRILLED 12./1 ( 94 USE OF WELL G'-W .N\tndon ll ~ '· TOTAL DEPTH \q ted CUTTINGS COLLECTED [j(J Yes 0 No 5. DOES WELL REPLACE EXISTING WELL? 0 Yes [8l No 6. STATIC WATER LEVEL: 1oi? FT. 0 above TOP OF CASING. , ~ !i!:l below TOP OF CASING IS ~o,·,_•o FT. ABOVE LAND SURFACE. 7. YIELD [gpm): ~fr METHOD OF TEST liJt -"-'.l..---,, ('; -'-"'------ 8. WATER ZONES [depth):---'-"'-'-'-------------- 9. CHLORINATION: Type --'N"'-ft'----Amount 10. CASING: 11. From 0 From From GROUT: From Watl Thickness Depth Diameter or Weight/Ft. Material To 19 --'--'---F 1. .::2__:_1 ;_::11L:o:..h,_ ~( H .lj 0 To ---FL--- To ---FI.--- Deeth Material 0 To 1<"1 N liJX (Urn' ll r FI. __ -'---- Pvc. MethOd i'rem 'e-p, pe From ____ To ___ FI. _____ _ 12. SCREEN: Deotl'l Diameter Slot Size Material From __ 4_,__ To-'l._g,___ Fl. _2 __ in. 0. 0 I 0 in. Pvc. From----To ___ Ft. ___ in. ___ 1n. __ _ From ____ To ___ Ft.----in. ___ ,n. 13. GRAVEL PACK: Deoth From___c3 __ To 20 Size fine("l) F I. --'='-'---'-- From ____ To ___ Ft. _____ _ Material Slltlct /\i\W-1 FOR OFFICE USE ONLY Quad. No.-------Serial No.---- Lai. _______ Long. ____ Pc __ Minor Basin-------------- Basin Code--------------Header Ent. _______ GW-1 Ent. __ _ STATE WELL CONSTRUCTION N" PERMIT NUMBER: '"' County: fdqecambe Depth DRILLING LOG From To Formation Description 3'12 +i SH \oc;e llljllt g,-~,~ ',lt~l'ltl~ CIC!W'I Qilf to rnell0u •\'1 StJ.11 d 8''~ ·H iJ!\. ·flr11'1li\ih+ gt'l.l-'1 f111e -~nedltil\1 9\Nl.i !3'tl H. iSfl I UC>k ( l~ht G(CLj lnfillv,\'1 ·CI)VW ~~~~0 IB'Ilh 20H firm 1~n1!t Q1A\I Cll~e~ SILT lf additional soace is needed use oack of term. LOCATION SKETCH (Show direction and distance tram at least two State Roads. or other mao reterence points) 14. REMARKS:------------------------------------------- 1 DO HEREBY CERTIFY THAT THIS WELL WAS STANDARDS. AND THAT A COPY OF THIS RECORD CW-1 REVISED 2i90 Submit anginal to Division of Environmental Management and copy to well owner. NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH AND NAT\JRAL RESOURCES DIVISION OF ENVIRONMENTAl MANAGEMENT • GROUNOWA TER SECTION P.O. BOX 27687· RALEIGH, NC 27611·7687 PHONE (919)733·3221 WELL CONSTRUCTION RECORD DRILLING CONTRACTOR _,_lt,,_l W:;:......::tc:..:n:;.y.c:l f1.:.:t:.:<r:..:lc:._cl:..;;jl------ ~~-1 DRILLER REGISTRATION NUMBER -'--'-'1--:::__ ______ _ i. WELL LOCATION: (Show sk.etcn of !he locanon below] Nearest Town: KGCk~ Movnr N.C . ~Roaa. Commun1ty. or Subdivision ana LOt No.l 2. OWNER CONL\0 :fut-· ADDRESS yO:?OtVQ I jt00 f'}, \:Uin~;,P"JhJ-v(~ ;.L., -1"\s tStreel or u1e No.) nclht11V 1 ~ 1101 y Citv or Town State Zio Coae 3. DATE DRILLED \\{~Qjq.q USE OF WELL (;W 1\\DndO(In'J 4 TOTAL DEPTH 2LJ -\l'e._j CUTTINGS COLLECTED ~Yes 0 No 5. DOES WELL REPLACE EXISTING WELL? 0 Yes ~No 6. STATIC WATER LEVEL: li!•')~ TOP OF CASING IS ~ 0• 01, FT. 0 above TOP OF CASING. ~below FT. ABOVE LAND SURFACE. 7. YIELD (gpm J: __,Nc:l\,_ ___ METHOD OF TEST __,IIJu.fr.__ ___ _ 8. WATER ZONES (depth): ---'-'N'-'1.;,.\-___________ _ 9. -CHLORINATION: Type NA Amount 10. CASING: Wall Thickness Depth Diameter or We1gnt1Ft. Matenal 0 From----To 24 Ft. 21nth ~'CH 40 PVL From----To Ft. From----To Ft. ll. GROUT: Depth Matenal Method MW-2 FOR OFFICE USE ONLY Quad. No.------Serial No.---- Lat. ______ Long.----Pc __ Minor Basin------------- Basin Code------------- Header Ent. GW-1 Ent. STATE WELL CONSTRUCTION PERMIT NUMBER: County: f<Jgec.ombe. Deeth DRILLING LOG From To F ormat1on DescriPtion '3 ''2. n SH TifM l:t~n ~~ CLAy 3'1z {·t IDH 1'Ctl4 ·Sllf!' ~ i0.11 1)17'#, (1'\\(~uV'-Cl~f!:j I I I I I I I Slt.:l I~ ''z ft \Sf\ I icm llr\lw iJ ~a~ lllW\~m CuCV\,(1 SANP \3 112. ft LOf-t Vel'~ S\i((' -fld\!j Cl!1~e01 SILl I 13112 fr.;H 11•\Vll ~\Jt\\i( Cj 1~ (~~ S1L1 _ ____ ___}I I' ===::;";,a~d:;;d';;;-ti;;;on~a;;,l,;;s;;;pa;;;c;.;e:,:l;;s.;,n:;•;;ed;;;e;.;d:,:u;;;s:;•.;";;a;;c;;k.;o;;f.;lo;;rm;;;;,. ===~ LOCATION SKETCH I (Show 01rection and distance tram at least two State Roads. or other mao reference oo1nts} I From 0 To2• 9 Ft. Nto.tCCmirJt--rrem•e. p;'l"'- From To Ft. 12. SCREEN: 13. t4. Deptn Diameter Slot Size Material From 9 To 24 Ft. 2 in. 0.010 in. eve From To Ft. '"· '"· From To Fl. in. in. GRAVEL PACK: Depth Size Material From l To 24 Ft. flat 1~1) SG\tlg From To Ft. REMARKS: 1 DO HEREBY CERTIFY THAT THIS WELL WAS CONST STANDARDS. ANO THAT A COPY OF THIS RECORD see Site plM I I I I I GW·l REVISED 2i90 Submn anginal to Division of Environmental Management and copy to well owner. I I I I NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES DIVISION OF ENVIRONMENTAL MANAGEMENT • GROUNDWATER SECTION P.O. BOX 27887 • RAL.£1GH, NC 27611•7687 PHONE (9191733·3221 WELL CONSTRUCTION RECORD I DRILLER REGISTRATION NUMBER I I I I I I I I I I I I 1. WELL LOCATION: (Show sketch ol the locatiOn below) Nearest Town: ReCK~ Movf\t , tJ .C . ~Roaa. Commumtv. or Subdivision ana Lot No.) 2. owNER ~onoco J()c, ADDREss 9o'?lo.z.0 1 too f'} • ·uaif~ A~SvaL I. l...... _ LStreet or ReuS No.l 0 •oiL'?rV~--' --y=y; 1?D-il City or ro..!n State Zio Code ' :;)ATE DRILLED 11122194 USE OF WELL G-W MOt"iit0(1()8 2iJ ftef CUTTINGS COLLECTED ~Yes 0 No .l TOTAL DEPTH 5. DOES WELL REPLACE EXISTING WELL? 0 Yes _g) No 5. STATIC WATER LEVEL: \({,1!,?1 FT. 0 above TOP OF CASING. \il below TOP OF CASING IS -0Hjl FT. ABOVE LAND SURFACE. 7. YIELD Cgpm 1: _:_N:...:I\-.:.._ ___ METHOD OF TEST _:_:j\).:,fr'------- 8. WATER ZONES (deeth): __ ,_,JIJ'-'1\-'-------------- 9. CHLORINATION: Typo -...L(I)"-'-'i\-__ Amount 10. CASING: Wall Thickness Death Diameter or We1gnttFt. Matenal 0 From ___ To -·=-2Li-'---Ft.-=2:..:.t'c::nc"-h'--S[)-1 40 Pvc From ---To ___ Ft. __ _ From ----To Fl.---- 11. GROUT: Deotn Matenai Method From 0 To-5'---_Ft. NW L~m<n t lr~m~ Pie& From ----To ___ Ft. ------ 12. SCREEN: 13. 14. From Deotn -~-To ZL! Cj Diameter Slat Size Material Ft._Z=---;n.U.0/0 in. PVC. From ----To, ___ Ft. ___ in. ___ 'n. From ----To ___ Ft. ___ in. ___ in. GRAVEL PACK: Deotn Size Material From 7 __:. __ ToZ4.1 Ft. hne ( 111) SQ.t\d From ----To ___ Ft. _____ _ REMARKS: 1 DO HEREBY CERTIFY THAT THIS WELL WAS CONSTR ST ANOAROS. AND THAT A COPY OF THIS RECORD H FOR OFFICE USE ONLY Quad. No.------Serial No.---- Lat. Long. Pc __ Minor Basin------------- Basin Coda------------- Header Ent. _______ GW-1 Ent. __ STATE WELL CONSTRUCTION PERMIT NUMBER: County: tctse(ornbe oeoth DRILLING LOG From To Formation Description 3 ltzf1 Sf-\-. 3'1z tj \\)( t. )'l".d1. ISH. l?.!''t.H lG4. B''z. 1\ iS{ l. 11 additional so ace IS needed use back of form. LOCATION SKETCH (Show direCtion anel distance tram at least two State Roads. or other mao reference oomtsl 5 NCAC 2C. WELL CONSTRUCTION EA.!ld. r GW-1 REVISED 2190 Submit anginal to Division at Environmental Management and cooy to well owner. ':\!:1' .. I I 1'40RT1i CAROLINA DEPARTUENT OF ENVIRONMENT, HEAL Ttl AND NATURAL RESOURCES DIVISION OF EHVIRONUENTAL MANAGEMENT • GROUNDWATER SECTION P.O. BOX 27e87 ·RALEIGH. NC 27611·7687 PHONE (919)733·3221 WELL CONSTRUCTION RECORD DRILLING coNTRAcToR Lttw En~Jnee.rtl\q DRILLER REGISTRATION NUMBER '}32- 1 WELL LOCATION: (Show sketch of the locatton Oetow) Nea~es< Town, Rock~ M0v11t 1 IJ.C. :Road. Communtty, or Subdivision and Lot No.l 2. OWNER C!Jl\OW 1fi£-· City or Town State Zio Code 3 DATE DRILLED .1 TOTAL DEPTH 1112Z.I94 usE oF WELL GW Mbndunng 2L{ [Ce_f CUTTINGS COLLECTED ~Yes 0 No 5. DOES WELL REPLACE EXISTING WELL' 0 Yes i8J No 6. STATIC WATER LEVEL \<j,!}\> FT 0 above TOP OF CASING. (! below TOP OF CASING IS -Oe'!-"1 FT. ABOVE LAND SURFACE. 7. YIELD (gpml' N A-METHOD OF TEST -'-N'-'fr'------ B. WATER ZONES (dePth), ----"'1.)-'-'----------- 9. -CHLOAINA T!ON: 10. CASING: Type lJ ft DePth F•om _0 ___ To Z4 Fl. Amount wau Thickness Diameter or Weight/Ft. -2!:.!1-"'nr.h::..:. S'C H 40 F1om ____ To ___ Fl. ___ _ From ----70 Fl.--- 11. GROUT: DePth Matenal Material Pvc Method FOR OFFICE USE ONLV Ouad. No.------Serial No. ---- Lat. Lon;. Pc -- Minor Basin------------- Basin Code------------- Header Ent. _______ GW-1 Ent.-- STATE WELL CONSTRUCTION ''A, PERMIT NUMBER: '" County: Edgecomb e Deoth DRILLING LOG From To Formation Description ~H I;{.f 3''2ft· \\H 1~'12 H ISH. I B'tzJi. lCH. z~1'2 n .2SH I I I I I I I ·fl~Wi!A/ C&cw smiocd Silt"'( ye.v~ Sl i R 9Y\Vi ClO:\j~\1 ~IL\' ----1 ----1 It additional so ace is needed use back of form. LOCATION SKETCH (Show direction and distance tram at least two State Roads, or other mao reference OOintS) I I From 0 To 6• 6 Ft. ~leu Um1nt -rrem I e.. e 'C"-s1ie r lOJ'\ see 12. 13. 14. From To Ft. SCREEN' Deeth Diameter Slot Size Matenal From 9 To 2A Fl. 2. in. 0.010 in. Pvc From To ___ Ft. 1n. 1n. From To Ft. 1n. in. GRAVEL PACK, Deeth Size Material From l To Z4. B Fl. fifle (111) So.nd From To ___ Fl. REMARKS' I DO HEREBY CERTIFY ,'HAT THIS WELL WAS CONSTR STANDARDS. AND THAT A COPY OF THIS RECORD H GW·1 REVISED 2.190 Submit anginal to Division of Environmental Management and cooy to well owner. I I I I I I I I I NORTti CAROLINA DEPARTMENT OF ENVIRONMENT. HEALTH AND NATURAL RESOURCES DIVISION OF ENVIRONMENTAL MANAGEMENT· GROUNDWATER SECT10N P.O. BOX 271587 • RALEIGH, NC 27611·7687 PHONE 1919)733·3221 WELL CONSTRUCTION RECORD I DRILLING coNTRAcToR --"L""'t\""w'--'t"'. \'ltQ'-'1 (\,_,_( c,_:r-'-'1'\-c;~l------I DRILLER REGISTRATION NUMBER ) ~-.z._ I 1. WELL LOCATION: (Show sketch of the locatiOn below) NeareSI Town' RI!X.K'{ ;\,lov.1t , 1'J {. ~Roaa. Commumty. or Subdivision ana Lot No.) tonclo T.-1c I 2. OWNER ADDREss Po :3,12 for I -11J7{/ I I I I I I I I I I I i Hcvs.tcn City or Town State Zip Code J. DATE DRILLED 11//.31'14 USE OF WELL G-v.J .'\,\ul'\llvfln~ CUTTINGS COLLECTED [8l Yes 0 No J TOTAL DEPTH S 3 --"'-=--- s. DOES WELL REPLACE EXISTING WELL? 0 Yes i&No 6. STATIC WATER LEVEL' 4.,:,4 FT. 0 above TOP OF CASING. ~below TOP OF CASING IS ____ FT. ABOVE LAND SURFACE. 7. YIELD [gpm], _.::N:!!A"'---METHOD OF TEST --"\-Jc::A::_ ___ _ 8. WATER ZONES [deothl' _,_IJ_A--'---------------- 9. -CHLORINATION' 10. CASING' From 0 i=rom 0 From 11. GROUT' Type NA Amount Wall Thickness DePth Diameter or We1ght/Ft. To 45 Ft. 41()<1:J SCH4a "'., ·21"Ch SC~4o To "" Ft. To Ft. DePth Mater~al From c. ~--To 4 3 Ft. OCOJ lfillt>1 t From ____ To Ft.------ 12. SCREEN' Deotn Diameter Slot Size From ¥.3 To S3 Ft. 2 in. 0,010 in. From To Ft. 1n. ---in. From To Ft. 1n. 1n. 13. GRAVEL PACK' Material f)V(, PVC Material PVL Depth Size Material 14. From 4JI To ss Ft. 11·rw (u I) St.v>d From To ___ Ft. REMARKS' I DO HEREBY CERTIFY THAT THIS WELL WAS CONSTR STANDARDS. AND THAT A COPY OF THIS RECORD H lv\ w-r; FOR OFFICE USE ONLY Quad. No.------Serial No.---- Lat. Long. Pc -- Minor Basin------------- Basin Code------------- Header Ent. GW-1 Ent STATE WELL CONSTRUCTION PERMIT NUMBER: County: Deeth From Z\3 11l-!l ~:S'-211 33'1z q 4~'tz,-n To :sell 1SH IJD{i 4~£j DRILLING LOG F ormat1on Descnotion 1\() Silt110fS CCJ!ie.cted ~0 femtlrnfro, ()CQt\\ 11 additional soace 1s needed use oack ot form. LOCATION SKETCH (Show direct•on ana distance tram at least two State Roads. or other mao reference oomtsl I I GW-1 REVISE 0 2190 Submit anginal to Division ot Environmental Management and cooy to well owner. ! NORT1-I CAROLINA DEPARlVENTOF EHVIRONMEHT. HEAL Tli AND NAT\JRAL RESOURCES DIVISION OF ENVIRONMENTAL MANAGEMENT· GROUNDWATER SECTION P.O. BOX 27887 ·RALEIGH, NC 27611·7687 PHONE (919)733·3221 WELL CONSTRUCTION RECORD DRILLING CONTRACTOR l.o.W t(\91f1tert flg DRILLER REGISTRATION NUMBER ~12.- 1. WELL LOCATION: (Show sketch of the location below) ,earest Town R<XJ<._1 Mount 1 /JOrih WrvlifK'- ':Roaa. Communny, or SubdiviSIOn ana Lot No.) 2. owNER ____ ~C~·c~N~O~w~·1-~-~n~"-·--------------------~ A ooRE s s _ _,_P-=-o1J"'o'-'fl)"-'0'--t-, --'*11"'-0o":-:-'oN'-""*'ri""'.*' ~v"-'cu;::.·'-tlr~'-'-lb=.ctllVi=-:..:.:rCL"---',_0, ., _ _,_0 LStreet or Route No.l q n "'-" n n 1101 J. DATE DRILLED City or Town ) State Zio Code 11122 I q4 USE OF WELL G-W r\tOYitiOrt "@ 22 Jeei CUTTINGS COLLECTED i:8:l Yes 0 No J. TOTAL DEPTH 5. DOES WELL REPLACE EXISTING WELL? 0 Yes i8l No 6. STATIC WATER LEVEL 1Jo0'.3 FT. 0 above TOP OF CASING . • )-w ~ below TOP OF CASING IS JD<'v• FT. ABOVE LAND SURFACE. 7. YIELD (gpmlo __ N=' fr'-----METHOD OF TEST N A- N ~~----- 8. WATER ZONES (deptnlo ---'-'UJ..------------ 9. CHLORINA TIONo Type __ !-'N"-/t!,__ Amount 10. CASING: Wall Thickness Depth Diameter or Weight/Ft. Mate nat From 0 To -=:,__Ft. llnth SCH 40 2'2 Pvc From To _____ Ft. ____ __ From To ---FL----- 11. GROUTo Deoth Matenal Method FOR OFFICE USE ONLY Quad. No.------Serial No.---- Lat. Long. Pc __ Minor Basin------------- Basin Code------------- Header Ent. GW-1 Ent. STATE WELL CONSTRUCTION PERMIT NUMBER: countv tdgeccfYII?e Deeth From L\H 3''zH. \1'/l +:J l\3ttz/i n'':dl To S-It 10H. IS·H. 20-fi 2Sft DRILLING LOG Formatton oescnotion V ~ V1.j $I I (( 11 ([/ bf() W t1 Q ti1.Aj lw~e jo.1 0t~t C~C><'<;( .;.tr9htl"' S1 11'1 .SANQ ' I I I I I I I ---~1 \1 additional soace is needed use back of lorm. LOCATION SKETCH (Show Q1rect10n and distance from at least two State Roads. or other mao reterence oomtsl I I I From ---'0"-----To '3, '5 Ft. NW.tC~rMn !-lremie-r'ee. see ~,te pl().rl From ____ To Ft. _____ _ 12. SCREENo 13. 14. From DePth -'---To n I Diameter Slot Size Ft.__:2:;__;n_ 0.010 ;n. Matenal Pvc From ____ To _____ Ft. _____ on. ____ on. __ _ From ____ To Ft. ____ in. ___ ,n. GRAVEL PACKo Oeoth --'-'-''---To 11. g FromLj_q Size Ft. -fine (lli) From ______ To _____ Ft. __________ _ REMARK So Matenal SOJld I DO HEREBY CERTIFY THAT THIS WELL WAS CONSTR STANDARDS. ANO THAT A COPY OF THIS RECORD H I I I I I GW·1 REVISED 2190 DATE Submit original to Division of Environmental Management and copy to well owner .• I I I r-iQRTH CAROLINA DEPARTMENT OF ENVIRONMENT. HEALTH AND NATURAL RESOURCES DIVISION OF ENVIROHUENTAL MANAGEMENT • GROUNDWATER SECTlON P.O. BOX 27687 • RALE1GH. NC 27611-7687 PHONE {919}7'33·3221 WELL CONSTRUCTION RECORD I DRILLING coNTRAcToR LClw B\910eeno9 I DRILLER REGISTRATION NUMBER "332- I \. WELL LOCATION: (Show sketch of the location below) ~earest Town RfJJc'i .AA.ovnt Nurih (UO\l(lC\. ·:Roaa. Commumty. or Subdivision and Lot No.) I 2 OWNER CONOW :r:iJL-· A D D R E s s _ ____,_r;:_o-.'-'' o'-',~"'0--1-__,_1 "'( o;;:;o::-:N7o,.,.r t:.,IJ,..,tu.~i~r 'fi:---'A_,_..;,"-n"'}.:..:vt'-iL __ 11..-.n, > lStreet or Route No.J I I I I I 1 ov-':>\Dn n 77079 City or Town DATE DRILLED ii/Z9194 o.1 TOTAL DEPTH 22 -teet State Zio Code usE oF wELL G-W MOI\dortns CUTTINGS COLLECTED l8:J Yes 0 No 5. DOES WELL REPLACE EXISTING WELL? 0 Yes .8J No 6. STATIC WATER LEVEL' \tj,e,t FT. 0 above TOP OF CASING. (!. below TOP OF CASING IS -D•'i-0 FT. ABOVE LAND SURFACE. 7. YIELD (gpm), --'-'(\J"-f'r;..._ ___ METHOD OF TEST _;1V_:_:_(\-____ _ 8. WATER ZONES (depth): _...otJ.:..:..:tr ____________ _ 9. CHLORINATION: Type r.iir Amount tO. CASING: Wall Thickness DePth Diameter or We•ghtiFt. Matenal From 0 To 22 Ft. 21 0(1\ ~CH40 PVC :=rom To Ft. From To Fl. 11. GROUT' Matenal Method FOR OFFICE USE ONLY Quad. No.------Serial No.---- Lat. Lono. Pc __ Minor Basin------------- Basin Code------------- Header Ent. GW-1 Ent. STATE WELL CONSTRUCTION NA PERMIT NUMBER: Deeth From To SH S'izfl 10fl iSH 2.0H DRILLING LOG FormatiOn Descnption Sti (l i'ed br1)W~ ~(% ~~~~ LU\l{ e fir"' WhiH C1r \C.O~? -iutl (Jif1l( f\rU' -DW1ljwvt SAN? ll additional soace is needed use back of form. LOCATION SKETCH (Show direction and distance from at least two State Roads. or other mao reference oo•nts) I Depth From _O::.___To '3,"1 F .. -'-N'-'I:::IJJ...::C~I m~<.:.:.n .:__t llemie.-pire D I I I , I I I From ____ To ___ Ft. ------ 12. SCREEN: t3. 14. Depth Diameter Slot Size Matenal From 1 To 21-Fl. 2-in. 0.010 in. pyc_ From To ___ Fl. •n. in. From To Fl. !n. •n. GRAVEL PACK: Depth Size Matenal From s To n. Ft. fill~ (lit) ~Md From To ___ Fl. REMARKS: 1 DO HEREBY CERTIFY THAT THIS WELL WAS CONSTR ST ANOAROS. AND THAT A COPY OF THIS RECORD HA DATE GW·1 REVISED 2190 Submit anginal to Division of Environmental Manaoement and copy to well owner. NORTH CAROLINA OEPARl'UENT OF ENVIRONMENT, HEALnt AND NATIJRAL RESOURCES DIVISION OF EHYIRONIIENTAL MANAGEMENT • GROUNDWATER SECTION P.O. BOX 27A7· RALEIGH. NC 27611·7687 PHONE (919)133·3221 WELL CONSTRUCTION RECORD DRILLING coNTRAcToR Lu.w (ng1oeennq DRILLER REGISTRATION NUMBER :Bz 1. WELL LOCATION: (Show sketcn at the 1ocanon below) Nearest Town: ROCNJ Movl\t 1 Mldh CwtJ\ItW-- ~Roao. Communny, or Subdivis1on and Lot No.) 2 owNER CoND:.v sn~· .ADDREss P0101Z.0 (;DO N lf(rf\ -vcur~ A:,hlul~ 1J.....-,,t.J-1 lStreel or Route N .) 9 riD"--'tCYI =fX 7707 City or Town State Zip Code Atw-s FOR OFFICE USE ONLY Quad. No.------Serial No.---- Lat. ______ Lono. ----Pc __ Minor Basin------------- Basin Code------------- Header Ent. STATE WELL CONSTRUCTION NA PERMIT NUMBER: GW-1 Ent. countv t:=dgeccm be, Deeth DRILLING LOG From To I '" Formation Oescriotion ?''z{f <-;,{1 3 'I f . <!. j 10 fl. I I I I I I IJ>''z It iSH. , :ATE DRILLED ~~~~q j<J4 USE OF WELL c.w J\AOr\ifurtll@ 21-feet CUTTINGS COLLECTED Q1:l Yes 0 No J iOTAL DEPTH Ck~ '-'<1 'W _Slllhl Sill I 1\\C(l\~A) ~10-li\Cti Si\NQ 5. DOES WELL REPLACE EXISTING WELL? 0 Yes KJ No 5. STATIC WATER LEVEL: 1'!>.'/.-'l--FT. 0 above TOP OF CASING. n ~below · TOP OF CASING IS ~o•·o!J-FT. ABOVE LAND SURFACE. 7. YIELD (gpm ): ....c:Nc:.ft-:_ ___ METHOD OF TEST -'-i\J..:.(\--;_ ___ _ 8. WATER ZONES (death): __ i,__,N..:.i\-;_ ___________ _ 9. ·cHLORINATION: Type i\i~ Amount 10. "- CASING: From 0 rrom From GROUT: Depth Wall Thickness Diameter or We1gnt1Ft. To 21 -='--Ft. lif\ch SCH 40 To ___ ft. __ _ To ---Fl.---- Material Matenal Pvc Method Depth From ---'0'---To Q•I.J F .. -'-N'-"ea1=-. .::c e::.!rlw:.:.-11!.-'-t-_ J(em~e.. p, ~e. From ____ To ___ F!. _____ _ i2. SCREEN: Deotn From __::.b __ To 2.1 Diameter Slot Size Ft.__,2.~_;n. 0.010 ;n. From ----To ___ Ft. ___ 1n in. From To Ft. ___ ,n. ___ ,n. 13. GRAVEL PACK: Material WL Material oeotn Size From__,4c..___To 21 Ft. Hne (Iii) ~MO From ____ To ___ Ft. _____ _ 15'iz.f1 t.G ff If additionat so ace IS needed use back of form. LOCATION SKETCH (Show direction and distance lrom at least two State Roads. or other mao reference oomts l see s1-te pi(itl I I I I I I I 14. REMARKS: _______________________________________________________________ _ STANDARDS. ANO THAT A COPY OF THIS RECORD EEN 0 EQ'Tq;JHE §IJtOI)'!IEJI. , _,;-- I DO HEREBY CERTIFY THAT THIS WELL WAS CONST CTEO ~N CCORDAN. CE_ WITH t5 NCAC 2C. WELL CONSTRUCTION '/d : !-(/,'\;, f/j f/1 [7. 7-? f!J I GW·' REVISED 2190 Submit ongtnal to Division of Environmental Management and copy to well owner. I -----------,=cc==---- I I I I I I I I I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 APPENDIXD February 6, 1995 Final LABORATORY ANALYTICAL DATA FOR SOIL AND CHAIN-OF-CUSTODY RECORDS ---· ·-·· I I I I I I I I I I I I I I I I I ' August 15, 1994 Sharon Tyndall Law Environmental, Inc. 2801 Yorkmont Rd. Charlotte, NC 28208 LAW ENGINEERING AND ENVIRONMENTAL SERVICES Subject: Chemical analysis of samples received on 08/09/94 Project Number: 56-4533 Dear Ms. Tyndall: Law Environmental National Laboratories has completed its analysis of your samples and reports the results on the following pages. These results relate only to the contents of the samples as submitted. This report shall not be reproduced except in full without the approval of Law Environmental National Laboratories. If there are any questions, please do not hesitate to contact us. Sincerely, LAW ENVIRONMENTAL NATIONAL LABORATORIES px._~ ~ Patrick Kelley Hydrocarbon-Supervisor PK:so Enclosures: Data Report Invoice LAW ENVIRONMENTAL, INC. NATIONAL LABORATORIES 112 TOWN PARK DRIVE • KENNESAW, GA 30144 (404) 421-3400 • FAX (404) 421-3486 ONE Of 'OlE LAW COMPAHIES (i} Date Page 08/16/94 1 Lab Number Project No. Project Name Manager: Station ID Matrix Type Collector Remarks LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-15 56-4533 CONOCO #33047 SHARON TYNDALL GP-1 (4-5') so GRAB RTB ---Project Information --- Cust. No. ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- 08/07/94 13:00 08/09/94 08:53 RTB/JA 0 1 Parameter .............................. Method .... Units PQL ....... Results ... Test Date --SAMPLE PREPARATION RESULTS Moisture (oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.% 1 5030/8015M mg/kg 5 16 08/11/94 TH ND 08/11/94 TH I I I I I I I I I I I I I I I I I I I I I I I I I I Date 08/16/94 Page 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-16 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-1 ( 9-10') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- 08/07/94 13:05 08/09/94 08:53 RTB/JA 0 1 I Parameter .............................. Method .... Units PQL ....... Results ... Teat Date Analy I I I I R I I I --SAMPLE PREPARATION RESULTS Moisture (oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.% 1 23 08/11/94 TH 5030/8015M mg/kg 5 ND 08/11/94 TH Signed ~uC,. Date Page 08/16/94 1 Lab Number Project No. Project Name Manager: Station ID Matrix Type Collector Remarks LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-17 56-4533 CONOCO #33047 SHARON TYNDALL GP-2 (4-5') so GRAB RTB ---Project Information --- Cust. No. ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- I I I I I 08/07/94 12:20 08/09/94 08:53 I RTB/JA 0 1 I I Parameter .............................. Method .... Units PQL •••••.. Results •.. Test Date Anal~~ --SAMPLE PREPARATION RESULTS Moisture (oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.% 1 20 5030/8015M mg/kg 5 ND Signed '/ir;t-I ~ 08/11/94 TH I 08/11/94 TH I I I I I I I I I I I I I I I I I Date 08/16/94 Page 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-18 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station IO Matrix Type Collector Remarks GP-2 (9-10') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- 08/07/94 12:25 08/09/94 08:53 RTB/JA 0 1 I Parameter ...•.......•••.......•........ Method ..•• Units PQL ....... Results ... Test Date Analy I I I I I I --SAMPLE PREPARATION RESULTS Moisture (oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.% 1 7.9 08/11/94 TH 5030/8015M mg/kg 5 NO 08/11/94 TH Signed Date 08/16/94 Page 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-19 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL station ID Matrix Type Collector Remarks GP-3 (4-5') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers *THE CHROMATOGRAM IS IN THE RANGE OF DIESEL WITH HEAVIER CONSTITUENTS. ---Test Data --- 08/07/94 11:00 08/09/94 08:53 RTB/JA 0 2 Parameter .............................. Method .... Units PQL ....... Results ... Test Date --SAMPLE PREPARATION RESULTS EXT/TPH-Semi-Volatile/So/ EPA 3550M NA 08/10/94 JMK Moisture (oven dried @lOSe) D2216M wt.% 1 16 08/10/94 JMK --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile 5030/8015M mg/kg 5 NO 08/12/94 TH --TPH-SEMI-VOLATILE I PAH ANALYSIS RESULTS TPH-Semi-Volatile EPA 8015M mg/kg 10 82• 08/10/94 TH I I I I I I I I I I I I I I I I I I I I I I I I I I Date 08/16/94 Page 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-20 56-4533 CONOCO #33047 ---Project Information --- Cuat. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-3 ( 9-10') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- 08/07/94 08/09/94 RTB/JA 0 2 11:05 08:53 II Parameter .............................. Method .... Units PQL ....... Results ... Test Date Analy --SAMPLE PREPARATION RESULTS I EXT/TPH-Semi-VolatilefSof EPA 3550M NA 08/10/94 JMK Moisture (oven dried @lOSe) D2216M wt.% 1 19 08/10/94 JMK --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile 5030/8015M mgfkg 5 ND 08/12/94 TH I --TPH-SEMI-VOLATILE I PAH ANALYSIS RESULTS I TPH-Semi-Volatile EPA 8015M mgfkg 10 ND 08/10/94 TH I I I I I signed ylr..,...L. /(ab~ Date Page 08/16/94 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-01 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-4 (4-5') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of C~stody Number of Containers J ---Test Data --- 08/06/94 16:00 08/09/94 08:53 RTB/JA 0 1 Parameter .............................. Method .... Units PQL ....... Results ... Test Date --SAMPLE PREPARATION RESULTS Moisture {oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.% 1 5030/8015M mgfkg 5 20 08/11/94 TH ND 08/11/94 TH I I I I I I I I I I I I I I I I I I I I I I I I I I Date 08/16/94 Page 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-02 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-4 ( 9-10') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- 08/06/94 08/09/94 RTB/JA 0 1 16:05 08:53 I Parameter .............................. Method .... Units PQL ....... Results ... Test Date Analy I I I I I I I --SAMPLE PREPARATION RESULTS Moisture (oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Vo1atile D2216M wt.% 1 17 08/11/94 TH 5030/8015M mgfkg 5 ND 08/11/94 TH Signed {2C:;.Jv.._ #Lt<~-- Date Page 08/16/94 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-03 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-5 (4-5') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers *THE CHROMATOGRAM IS IN THE RANGE OF DIESEL WITH HEAVIER CONSTITUENTS. ---Test Data --- I I I I I 08/06/94 14:30 08/09/94 08:53 I RTB/JA 0 2 I I Parameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method. . . . Units PQL .....•• Results ... Teat Date --SAMPLE PREPARATION RESULTS EXT/TPH-Semi-Volatile(So/ Moisture (oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile EPA 3550M D2216M wt.% 1 5030/8015M mgfkg 5 --TPH-SEMI-VOLATILE / PAH ANALYSIS RESULTS TPH-Semi-Volatile EPA 8015M mg/kg 10 NA 24 ND 10* 08/10/94 JMK I 08/10/94 JMK 08/11/94 TH I 08/10/94 TH I I I I I I I I I I Date Page .I ', I I I I I 08/16/94 1 Lab Number Project No. Project Name Manager: Station ID Matrix Type Collector Remarks LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-04 56-4533 CONOCO #33047 SHARON TYNDALL GP-5 ( 9-10') so GRAB RTB ---Project Information --- Cuat. No. ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- 08/06/94 08/09/94 RTB/JA 0 2 14:35 08:53 I Parameter .............................. Method .... Units PQL ....... Results ... Test Date Analy --SAMPLE PREPARATION RESULTS I EXT/TPH-Semi-VolatilefSof EPA 3550M NA 08/10/94 JMK Moisture (oven dried @lOSe) D2216M wt.% 1 17 08/10/94 JMK --TPH-VOLATILE ANALYSIS RESULTS I TPH-Volatile 5030/8015M mgfkg 5 ND 08/11/94 TH --TPH-SEMI-VOLATILE I PAH ANALYSIS RESULTS TPH-Semi-Volatile EPA 8015M ( I mg/kg 10 ND 08/10/94 TH I I I I I Signed Date 08/16/94 Page 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-05 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-6 (4-5') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- 08/06/94 13:30 08/09/94 08:53 RTB/JA 0 1 Parameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method. . . . Units PQL ....... Results ... Test Date --SAMPLE PREPARATION RESULTS Moisture (oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.% 1 17 5030/8015M mg/kg 5 NO Signed ~L.., "lt'T 08/11/94 TH 08/11/94 TH I I I I I I I I I I I I I I I I I I I I I I I I I I Date 08/16/94 Page 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-06 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-6 (9-10') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- 08/06/94 13:35 08/09/94 08:53 RTB/JA 0 1 I Parameter .............................. Method .... Units PQL ....... Results ... Test Date Analy I I I I I I I I I I I I --SAMPLE PREPARATION RESULTS Moisture (oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.% 1 19 08/11/94 TH 5030/8015M mg/kg 5 NO 08/11/94 TH Signed '<·:!' •\: i Date Page 08/16/94 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-07 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-7 (4-5') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- I I I I I 08/06/94 08:30 08/09/94 08:53 I RTB/JA 0 1 I I Parameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method. . . . Units PQL ....... Results •.. Test Date Anal' --SAMPLE PREPARATION RESULTS Moisture (oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.% 1 5030/8015M mgfkg 5 Signed 18 ND 08/11/94 TH I 08/11/94 TH I I I I I I I I I I I I I I I I I Date Page 08/16/94 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-08 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-7 (9-10') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- 08/06/94 08:35 08/09/94 08:53 RTB/JA 0 1 II Parameter .............................. Method .... Units PQL ....... Results ... Test Date Analy --SAMPLE PREPARATION RESULTS I I I I I I I Moisture (oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.'t 1 14 08/11/94 TH 5030/8015M mgfkg 5 ND 08/11/94 TH Signed <;jl .. ,.I ' Date 08/16/94 Page 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-09 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-8 (4-5') so GRAB RTB ---sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- 08/06/94 09:20 08/09/94 08:53 RTB/JA 0 1 Parameter .............................. Method .... Units PQL ....... Results ... Test Date --SAMPLE PREPARATION RESULTS Moisture (oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.% 1 5030/8015M mgjkg 5 Signed 19 08/11/94 TH ND 08/11/94 TH I I I I I I I I I I I I I I I I I I I I I I I I I I Date Page 08(16/94 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-10 56-4533 CONOCO #33047 ---Project Information --- Cuat. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-8 (9-10') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- 08/06/94 09:25 08/09/94 08:53 RTB/JA 0 1 I Parameter .............................. Method .... Units PQL ....... Results ... Test Date Analy I I I I I I I I I --SAMPLE PREPARATION RESULTS Moisture (oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.% 1 9.3 08/11/94 TH 5030/8015M mg/kg 5 NO 08/11/94 TH Signed :.,.I' ''.--. i Date Page 08/16/94 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-11 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-9 ( 4-5') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- 08/06/94 10:30 08/09/94 08:53 RTB/JA 0 1 Parameter .............................. Method .... Units PQL ....... Results ... Test Date --SAMPLE PREPARATION RESULTS Moisture (oven dried @lOSe} --TPH-VOLATILE ANALYSIS RESULTS TPH-Volati1e D2216M wt.% 1 5030/8015M mg/kg 5 Signed 20 08/11/94 TH ND 08/11/94 TH I I I I I I I I I I I I I I I I I I I I I I I I I I Date Page 08/16/94 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-12 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-9 ( 9-10' ) so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Teat Data --- 08/06/94 10:35 08/09/94 08:53 RTB/JA 0 1 I Parameter .............................. Method .... Units PQL ....... Results ... Test Date Analy I I I I I I I --SAMPLE PREPARATION RESULTS Moisture (oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.% 1 8.3 08/11/94 TH 5030/8015M mg/kg 5 ND 08/11/94 TH .:~'~'\i .. I Date Page 08/16/94 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-13 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-10 ( 4-5') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- I I I I I 08/06/94 12:30 08/09/94 08:53 I RTB/JA 0 1 I I Parameter .............................. Method .... Units PQL ....... Results ... Test Date Analt --SAMPLE PREPARATION RESULTS Moisture {oven dried @lOSe) --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.% 1 20 5030/8015M mg/kg 5 NO 08/11/94 TH I 08/11/94 TH I I I I I I I I I I I I I I I I I Date Page 08/16/94 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-8722-14 56-4533 CONOCO #33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector Remarks GP-10 ( 9-10') so GRAB RTB ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers ---Test Data --- 08/06/94 12:35 08/09/94 08:53 RTB/JA 0 1 I Parameter .............................. Method .... Units PQL ....... Results ... Test Date Analy I I I I I I I I I .I II --SAMPLE PREPARATION RESULTS Moisture (oven dried @lOSe} --TPH-VOLATILE ANALYSIS RESULTS TPH-Volatile D2216M wt.% 1 7.8 08/11/94 TH 5030/8015M mg/kg 5 ND 08/11/94 TH Signed LAW ENGINEERING 5710 OLEANDER DRIVE SUITE110 CHAIN OF CUSTODY RECORD Wlli~INGTON, NORTH CAROLINA 28403 (91 0) 452·1185 FAX (910) 791-1338 SAMPLING INFORMATION 114 ~ 0 ~0 G-P -5 ( l( I -'3' ) l lYro " ~" IG-: -5 ( Ll '-s') I NAME OF FACILITY: ( ()/li>C()Yf:_ ~:s 04-] sTREET ADDREss: U~.J. tJ~~ ~.,._1eiif 'S+ CITY/STATE: Rec G M;v/I£}JC ZIP': 1)5'/?o( -a 2. llf3S 1' <;o6-V-5(Cl 1 -l~') I I --o,; fl-l ~.J....,!~~ 51\-BI--~~"'-t--r:-G-;-P.-------=-=c;~(r?<.: q.--1_--,-l O-::-=:-').---+-'---l-t-t--t--t-+-t--+--t-t--t--t-t-t--t-t--t-:-l-t--t--t--t-+-t-t--1 -ot;,f l3'30 h ~ G-D -h(lf'-S') J I -as AA RECEIV£0 BY: RELINQUISHED BY: {SIGNATURE) (SIGNATURE) RELINQUISHEd av: DATE/TIME RECEIVED BY: RELINQUISHED BY: (SIGNATURE) I (SIGNATURE) {SIGNATURE} DISTRIBUTION: REMARKS: - DATE/TIME RECEIVED BY1 I {SIGNATURE) .--?f"'!E/TIME RECIEVED .'jtT ~ABORA"'JRY: ~f(( 1{)553 I"' M c..--zr,rz:..' r ': ) (SIGNATURE) '"SOURCII CODES: RECOVERY WELL· RW RCRA MONITORING WELL· MW SOIL/SEDIMENT· SO SLUDGE-SL NPDES DISCHARGE· NO DRINKING WATER· OW HAZARDOUS WASTE· HW -._,.CE-R---- ~~ Iiiii --- - - - - - - --__ ..,. __ LAW ENGINEERING CHAIN OF CUSTODY RECORD fj ~ ov-Lj 5710 OLEANDER DRIVE SUITE110 WILMINGTON, NORTH CAROLINA 28403 .---------------------~~~~~~~~------. NAME OF FACILITY: lfilll<JC(J :t;t: ~ 3 b4 ~ SAMPLING INFORMATION (91 0) 452-1185 FAX (910) 791-1338 sTREET AooR.g;s: i \ :::!~ Npr~t._ _&I e~ s+. r;,cr-1(72'2---ciTY/STATE: ___!i_~ MouAt-. N(. z1~: d_7JiOJ RELINQUISH~BY: DATE/TIME {SIGNATURE) I RECEIVED BY: RELINQUISHED BY: DATE/TIME RECIEVED A1\_LABORATORY: {SIGNATURE) -----=-=~c=--ll,{?hyjo8n"-p,., -"' -,/,h-~ ~-~?s/ (SIGNATURE} ;-'(t: ___)__ {SIGNATURq •soURCI: TAINED BY SAMPLERS. CODES: RECOVERY WELL· RW RCRA MONITORING WELL-MW SOIL/SEDIMENT· SO SLUDGE· SL NPOES DISCHARGE-NO DRINKING WATER-OW HAZARDOUS WASTE-HW SURFACE WATER-SW - TIME \045 II c 0: " ~~~:lt\ LAW ENGINEERING 5710 OLEANDER DRIVE SUITE110 WILMINGTON, NORTH CAROLINA 26403 (910) 452-1165 FAX (910) 791-1336 t,-_" y 'f* ~ llj_ ~'(Ti/TIME (SIGri ATURE) l•qilllt57 RELINQUISHED BY! DATE/TIME (SIGNATURE) I REMARKS: - CHAIN OF CUSTODY RECORD P03of i SAMPLING INFORMATION RECEIVED BY: (SIGNATURE) RECEIVED BY: (SIGNATURE) NAME OF FACILITY: _L.&1_0_w_ # 3 30'-/]_ STREET ADDRE);S: \ \ :;l, :?. N.) r-{i, IV>.~ <:;;'f CITY/STATE: flu(W /L1;;,/!L_J:)_L Zl~: <-<7160{ RELINQU ISHEO BY; (SIGNATURE} RELINQUISHED BY: {SIGNATURE) ll DATE/TIME RECEIVED BY1 I {SIGNATURE) *SOURCI: CODES: RECOVERY WELL· RW RCRA MONITORING WELL· MW SOIL/SEDIMENT-SO SLUDGE-SL NPDES DISCHARGE-NO DRINKING WATER-OW HAZARDOUS WASTE-HW -~CE-R---- iiiil -------- --LAW ENGINEERING 5710 OLEANDER DRIVE SUITE 110 CHAIN OF CUSTODY RECORD WILMINGTON, NORTH CAROLINA 28403 '(910) 452-1185 SAMPLING INFORMATION FAX (910) 791-1338 6V-S 12-Z- I Is RECEIVED BY: {SIGNATURE) RELINQUISHED fly; DATE/TIM£ RECEIVED BY: {SIGNATURE) I (SIGNATURE) REMARKS: NAME OF FACILITY: ( Ml. :.0 'ff= S '3C)lJ-:J STREET ADDR~S: I I c A Nru-t\, (~c..l.e-!<;.(, <>'h. CITY/STATE: ~.:k:H. J!JJ_~ {\J(_ VZII':;). 790( RELINQUISHED BY: (SIGNATURE) RELINQUISHED BY; (SIGNATURE) -17 -IS J --1'1 ~;c; I -z.;; \ _-z_ u -z 7 -2 :;/ -z_ '/ DATE/TIME RECEIVED BY1 l (SIGNATURE) DATE/TIME RECIEVED ATA LABORATORY: <tJ,~vj , .. ~ o lb~ w1JI.iC..1' 'f1flt '1. 'iJ b j_ {SIGNATURE) RECOVERY WELL· RW • SOURC& CODES: RCRA MONITORING WELL-MW SOIL/SEDIMENT· SO SLUDGE-SL NPDES DISCHARGE· NO DRINKING WATER· OW HAZARDOUS WASTE-HW SURFACE WATER -SW - SAMPLE RECEIPT RECORD SAMPLING INFORMATION NPDES NUMBER PROJECT NAM~~6eo 4{ 3Xf/1 I J5-b~5>J ls;sAOJMMP;;:LEERRS~ISit;le~r~4A~T~U~~~~--:::; .?~--~~.r~?:__~~-A---'---"-:_::--=--=--~ ~ , __________ -;f-L"TL--~/-~~--~-~~'-'~---------lg~ ,_ ~ «: SAMPLING DATE v-_ / _ f· / ;"' ~ ~-----,--,-7T---,~D~~~~~y-----------------l~8 ~ ~ •SOJRC£ CODE TIME SAMPLE STATION DESCRIPTION "' 8 lx l.z.- NAME OF FACILITY: ---------------------- STREET ADDRESS: LENL LAB NO. RECEIVED BY LABORATOAY: • DAT~E I TIME ~~-.Lb_-L_-'--'G"'f ~ 211lS<;3 ' -) (SIGNATURE) I~ .... 8/%}": ------------------- PROJ(lT NAME "t<,._ "'· ----------LAW ENVIRONMENTAL, INC. NATIONAL LABORATORY SAMPLE RECEIPT RECORD 112 TOWN PARK DRIVE SAMPLING NAME OF FACILITY: KENNESAW, GEORGIA 30144 INFORMATION (404) 421-3400 r:'(-pz,-z_, NPDES NUMBER STREET ADDRESS: ~u:. # 3:::f(N·? J J~lo. -.2"2"3-3 f<, ~<., ~'l."' ~~~ ---- SAMPLERS !SIGNAl! IRE~-•""J-<f..:<'~ ~"' Oa: i<.,'<-'l.V'" ~c. ""!iii ""'""' ~ "'" s '< " ~~ «""' & ~'\ ~ ¢~ ~'b,~ c:i~ <:::::_.~ sS ~~ ~ ""(Q ~(Q~ ~\;;)"' Sc::, is-{,'f "'r:Q 'I} z- SAMPLING DATE ~"' ~~~~,, ~~~~~ ~ 8-7-'fV "' .... ,_z oo " " 'l' 'l' " <;,,0 <Q ~ .. . " " " e-'-' ~ "' ·sruRCE SAMPLE STATION DESCRIPTION ~ ~ ~ <:, «" q'-' <( ......, <X'-' ~-$'. 'i:::-() o'"v :>v· :\.· :>v· o"'" LENL LAB NO. TIME "' "' ~ ~ ,v ,"-" ,-v ,-..... ,v ,..S ,'v ~ -<....~ "'::'\. t:t:Jo ~o '\.c '1>. a: 0 CODE "' u /IOD :X (,J ;f &i.voa:-0 z... ""2..-&-!-'67'Z¥)i RECEIVED BY LABOAAT~ DATE I TIME ~.u..v.o .J. _,.\, v:J.7!1t.J ~vla55J ~-(SIGNATURE) - i li ll LAW ENVIRONMENTAL, INC . SAMPLE RECEIPT RECORD • NATIONAL LABORATORY 112 TOWNPARK DRIVE KENNESAW, GEORGIA 30144 (404) 421-3400 SAMPLE STATION DESCRIPTION I SAMPLING INFORMATION NPDES NUMBER ·z. -z. .. NAME OF FACILITY --------------·---------- STREET ADDRESS:-----------------·--------- LENL LAB NO. ~----+-~~--+------------------------t~--t--r~-r-t-t~--~--1--~+--t-~-r--t--~-+-t---------- I~EIVED BY LABOAA.AO ORRlY: .I /l DATE /TIME 1 ~_,_p.a).Qkwmr<V '#ivtt.b'55 ~ ) (SIGNATURE) ' I ----- --- -- - ---- ---- __ -_1:.~-------------- -- --LAW ENVIRONMENTAL, INC. NATIONAL LABORATORY 112 TOWN PARK DRIVE KENNESAW. GEORGIA 30144 (404) 421-3400 SAMPLE RECEIPT RECORD . ; ' SAMPLING INFORMATION NPDES NUMBER PRq.jECT NAME /}' I JOB NO f. iH? Mo A'(;{j-v(_ .::# :3 3Z"f'1 !Jj,JI) .t.. 3 ~~SS.A~M~P~L~EjR~S~(~~I~G~~~~·~TI~IR~o~)~~~~~--~0~==~~~~~-----~~~ 1--:---,.-----------------'?_\t--'7"-"'f5:::.....r_:J._l;;._-_____ -l g ~ SAMPLING DATE ~ ;:': 8'-)-'1:/ 515 f----,.----.,---,--,.=:::.--r--...:.... ____________ -1,__"' ~ ~ ·soooo: TIME = o CODE "' u SAMPLE STATION DESCRIPTION NAME OF FACILITY: ----------------------- STREET ADDRESS:---------------------- LENL lAB NO. RECEIVED BY LABORATCJ,.RY: DATE 1 TIME ~ .av,~·,-"<.< .i::i>C. W15k# §4My", I v«-::J .._ 3 (SIGNATURE) ~V'-"..:l-J - I I I I I I I I I I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 APPENDIXE February 6, 1995 FinaL LABORATORY ANALYTICAL DATA FOR GROUND WATER AND CHAIN-OF-CUSTODY RECORDS I I I I I I I I I I I I I I I I I' I I, December 28. 1994 Sharon Tyndall Law Environmental, Inc. 2801 Yorkmont Rd. Charlotte, NC 28208 LAW ENGINEERING AND ENVIRONMENTAL SERVICES Subject: Chemical analysis of samples rL'Ceived on 12/17/94 Project Number: 56-4533 TOOO Dear Ms. Tyndall: Law Environmental National Laboratories has completed its analysis of your samples and reports the results on the following pages. These results relate only to the contents of the samples as submitted. This report shall not be reproduced except in full without the approval of Law Environmental National Laboratories. If there are any questions. please do not hesitate to contact us. Sincerely, LAW ENVIRONMENTAL NATIONAL LABORATORIES Patrick Kelley Hydrocarbon Supervisor PK:so Enclosures: Data Report Invoice LAW ENVIRONMENTAL, INC. NATIONAL LABORATORIES 112 TOWN PARK DRIVE • KENNESAW. GA 30144 (404)421-3400 • FAX (404) 421-3486 ONE OF ~E LAW COMPANIES@ ! .:•·I ' ! Date 12/28/94 Page 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-9269-02 56-4533 TOOO CONOCO 33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL station ID Matrix Type Collector MW-1 w GRAB SMT ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers I I I I I 12/16/94 14:50 12/17/94 08:55 I DSG/JA 29384 1 I Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --GC ANALYSIS (BTEX) RESULTS Methyl-Tertiary-Butyl Ether Benzene Toluene Ethylbenzene Xylene, Total Isopropyl Ether Remarks: DL = Detection Limit EPA 602 EPA 602 EPA 602 EPA 602 EPA 602 EPA 602 ug/1 5.0 67 12/23/94 PK ug/1 1.0 9.6 12/23/94 PK ug/1 1.0 NO 12/23/94 PK ug/1 1.0 NO 12/23/94 PK ug/1 2.0 23 12/23/94 PK ug/1 1.0 NO 12/23/94 PK NO = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry weight. Signed [Zt:"J.. ~ I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Date Page 12/28/94 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-9269-03 56-4533 TODD CONOCO 33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector MW-2 w GRAB SMT ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers 12/16/94 14:55 12/17/94 08:55 DSG/JA 29384 1 Parameter .............................. Method .... Units OL ........ Results ... Test Date Analy --GC ANALYSIS (BTEX) RESULTS Methyl-Tertiary-Butyl Ether EPA 602 ug/1 355 15000 12/23/94 PK Benzene EPA 602 ug/1 71 3900 12/23/94 PK Toluene EPA 602 ug/1 71 5700 12/23/94 PK Ethylbenzene EPA 602 ug/1 71 780 12/23/94 PK Xylene, Total EPA 602 ug/1 142 3200 12/23/94 PK Isopropyl Ether EPA 602 'ug/1 71 600 12/23/94 PK Remarks: DL = Detection Limit NO = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry weight. Signed ~"t;"..J, ~ I Date 12/28/94 Page 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-9269-04 56-4533 TOOO CONOCO 33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL ---Sample Information --- Station ID MW-3 Sampled Date/Time Matrix w Received Date/Time Type GRAB Received From/By Collector SMT Chain of Custody Number of Containers I I I I I 12/16/94 13:40 12/17/94 08:55 I DSG/JA 29384 1 I Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --GC ANALYSIS (BTEX) RESULTS Methyl-Tertiary-Butyl Ether Benzene Toluene Ethylbenzene Xylene, Total Isopropyl Ether Remarks: EPA 602 EPA 602 EPA 602 EPA 602 EPA 602 EPA 602 ug/1 5.0 7.4 ug/1 1.0 7.2 ug/1 1.0 1.3 ug/1 1.0 ND ug/1 2.0 ND ug/1 1.0 ND DL = Detection Limit ND = Not Detected at the DL 12/23/94 PK 12/23/94 PK 12/23/94 PK 12/23/94 PK 12/23/94 PK 12/23/94 PK unless otherwise noted, all soil test results are calculated based on dry weight. Signed r{lt-..d, ~ I I I I I I I I I I I I I I I I I I I I I I I I I I I I Date Page 12/28/94 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-9269-05 56-4533 TOOO CONOCO 33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector MW-5 w GRAB SMT ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers 12/16/94 13:50 12/17/94 08:55 DSG/JA 29384 1 Parameter .............................. Method .... Units OL ........ Results ... Test Date Analy --GC ANALYSIS (BTEX) RESULTS Methyl-Tertiary-Butyl Ether EPA 602 ug/1 5.0 NO 12/24/94 PK Benzene EPA 602 ug/1 1.0 NO 12/24/94 PK Toluene EPA 602 ug/1 1.0 1.3 12/24/94 PK Ethylbenzene EPA 602 ug/1 1.0 NO 12/24/94 PK Xylene, Total EPA 602 ug/1 2.0 NO 12/24/94 PK Isopropyl Ether EPA 602 ug/1 1.0 NO 12/24/94 PK Remarks: DL = Detection Limit ND = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry weight. Signed I i I Date Page 12/28/94 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-9269-06 56-4533 TOOO CONOCO 33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector MW-6 w GRAB SMT ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers I I I I I 12/16/94 14:10 12/17/94 08:55 I DSG/JA 29384 1 I Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --GC ANALYSIS (BTEX) RESULTS Methyl-Tertiary-Butyl Ether Benzene Toluene Ethylbenzene Xylene, Total Isopropyl Ether Remarks: EPA EPA EPA EPA EPA EPA 602 ug/1 602 ug/1 602 ug/1 602 ug/1 602 ug/1 602 ug/1 5.0 35 12/24/94 PK l.O ND 12/24/94 PK 1.0 2. 3 12/24/94 PK 1.0 1.9 12/24/94 PK 2.0 13 12/24/94 PK l.O 9.6 12/24/94 PK DL = Detection Limit NO = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry weight. Signed I I I I I I I I I I I I I I I I I I I I I I I I I I I I I LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT Date Page 12/2B/94 1 Lab Number Project No. Project Name Manager: Station ID Matrix Type Collector 64-9269-07 56-4533 TODD CONOCO SHARON MW-7 w GRAB SMT 33047 TYNDALL ---Project Information --- Cust. No. ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody 12/16/94 14:40 12/17/94 OB:55 DSG/JA 293B4 Number of Containers 1 Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --GC ANALYSIS (BTEX) RESULTS Methyl-Tertiary-Butyl Ether EPA 602 ug/1 850 34000 12/24/94 PK Benzene EPA 602 ug/1 170 8500 12/24/94 PK Toluene EPA 602 ug/1 170 10000 12/24/94 PK Ethylbenzene EPA 602 ug/1 170 1300 12/24/94 PK Xylene, Total EPA 602 ug/1 340 5000 12/24/94 PK Isopropyl Ether EPA 602 ug/1 170 760 12/24/94 PK Remarks: DL = Detection Limit ND = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry weight. Signed ftt:wt, ~ ! I i Date 12/28/94 Page 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 64-9269-08 56-4533 TOOO CONOCO 33047 ---Project Information --- Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector MW-8 w GRAB SMT ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers I I I I I 12/16/94 14:35 12/17/94 08:55 I DSG/JA 29384 1 I Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --GC ANALYSIS (BTEX) RESULTS Methyl-Tertiary-Butyl Ether EPA 602 ug/1 39 2200 12/24/94 PK I Benzene EPA 602 ug/1 7. 7 ND 12/24/94 PK I Toluene EPA 602 ug/1 7.7 NO 12/24/94 PK Ethylbenzene EPA 602 ug/1 7. 7 ND 12/24/94 PK Xylene, Total EPA 602 ug/1 15 27 12/24/94 PK Isopropyl Ether EPA 602 ug/1 7.7 38 12/24/94 PK I I I I I I I Remarks: I DL = Detection Limit NO = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry weight. I Signed I I I I I I I I I I I I I I I I I I LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT Date 12/28/94 Page 1 Lab Number Project No. Project Name 64-9269-09 56-4533 TOOO CONOCO 33047 Manager: SHARON TYNDALL Station ID Matrix Type Collector TRIP BLANK w GRAB ---Project Information --- Cust. No. ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody 12/16/94 12/17/94 08:55 DSG/JA 29384 Number of Containers 2 Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --GC ANALYSIS (BTEX) RESULTS Methyl-Tertiary-Butyl Ether EPA 602 ug/1 5.0 ND 12/24/94 PK Benzene EPA 602 ug/1 1.0 ND 12/24/94 PK Toluene EPA 602 ug/1 1.0 2.2 12/24/94 PK Ethylbenzene EPA 602 ug/1 1.0 ND 12/24/94 PK Xylene, Total EPA 602 ug/1 2.0 ND 12/24/94 PK Isopropyl Ether EPA 602 ug/1 1.0 ND 12/24/94 PK Remarks: DL = Detection Limit ND = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry weight. Signed J / / January 9, 1995 Sharon Tyndall Law Environmental, Inc. 2801 Yorkmont Rd. Charlotte, NC 28208 LAW ENGINEERING AND ENVIRONMENTAL SERVICES Subject: Chemical analysis of samples received on 12/17/94 Project Number: 56-4533 TOOO Dear Ms. Tyndall: Law Environmental National Laboratories has completed its analysis ol' your samples and reports the results on the following pages. These results relate only to the contents or the samples as submitted. This report shall not be reproduced except in full without the approval of Law Environmental National Laboratories. If there are any questions, please do not hesitate to contact Rhonda K. Arnwine at (404)-421- 3306. Sincerely, LAW ENVIRONMENTAL NATIONAL LABORATORIES c;y-~,,J W. Paul Brafford Laboratory Manager WPB:pah Enclosures: Data Report Invoice LAW ENVIRONMENTAL, INC. NATIONAL LABORATORIES 112 TOWN PARK DRIVE • KENNESAW, GA 30144 (404) 421 ·3400 • FAX (404) 421·3486 ONE OF n!E l.AW COMPANIES @ I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT Date 01/09/95 Page 1 Lab Number Project No. Project Name 94-9646-01 56-4533 TOOO CONOCO 33047 Manager: SHARON TYNDALL Station ID Matrix Type Collector MW-1 w GRAB DSG ---Project Information --- Cust. No. ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers 12/16/94 12/17/94 DSG/JA 29384 5 14:50 08:55 Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --METALS PREP RESULTS -- Metals Prep: Acid Extracted SM 3030C EXTRACTED 12/17/95 cw ---SERIES 39000 Lead, Extractable EPA 6010 mg/1 0.032 NO 12/19/94 SDE --GC ORGANIC ANALYSIS RESULTS 1,2-Dibromoethane (EDB) EPA 504 ug/1 0.02 NO 12/23/94 DCE Ext/1,2-Dibromoethane (EDB) EPA 504 EXTRACTED 12/22/94 BT --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- Dichlorodifluoromethane EPA 601 ug/1 0.59 NO 12/29/94 vz Chloromethane EPA 601 ug/1 0.47 NO 12/29/94 vz Vinyl Chloride EPA 601 ug/1 0.53 NO 12/29/94 vz Bromomethane EPA 601 ug/1 0.48 NO 12/29/94 vz Chloroethane EPA 601 ug/1 0.52 NO 12/29/94 vz Trichlorofluoromethane EPA 601 ug/1 0.86 NO 12/29/94 vz 1,1-Dichloroethene EPA 601 ug/1 0.67 NO 12/29/94 vz Methylene Chloride EPA 601 ug/1 2.0 NO 12/29/94 vz trans-1,2-Dichloroethene EPA 601 ug/1 0.73 NO 12/29/94 vz 1,1-0ichloroethane EPA 601 ug/1 0.78 NO 12/29/94 vz Chloroform EPA 601 ug/1 0.75 NO 12/29/94 vz 1,1,1-Trichloroethane EPA 601 ug/1 1.8 NO 12/29/94 vz Carbon Tetrachloride EPA 601 ug/1 0.75 NO 12/29/94 vz 1,2-Dichloroethane EPA 601 ug/1 0.89 NO 12/29/94 vz Trichloroethane EPA 601 ug/1 0.83 NO 12/29/94 vz 1,2-Dichloropropane EPA 601 ug/1 0.74 NO 12/29/94 vz Bromodichloromethane EPA 601 ug/1 0.81 NO 12/29/94 vz 2-Chloroethylvinyl ether EPA 601 ug/1 1.9 NO 12/29/94 vz cis-1,3-Dichloropropene EPA 601 ug/1 0.69 NO 12/29/94 vz trans-1,3-Dichloropropene EPA 601 ug/1 0.84 NO 12/29/94 vz Remarks: HC LAB # 64-9269 DL = Detection Limit NO = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry weight. tJ?/AtcA?J Signed ·"~ '1 /I I Date 01/09/95 Page 2 Lab Number Project No. 94-9646-01 56-4533 TOOO LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT Parameter .............................. Method .... Units DL ........ Results ... Test Date --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- 1,1,2-Trichloroethane EPA 601 ug/1 0.86 ND 12/29/94 Tetrachloroethane EPA 601 ug/1 0.91 ND 12/29/94 Oibromochloromethane EPA 601 ug/1 0.85 ND 12/29/94 Chlorobenzene EPA 601 ug/1 0.82 ND 12/29/94 Bromoform EPA 601 ug/1 0.80 ND 12/29/94 1,1,2,2,-Tetrachloroethane EPA 601 ug/1 1.1 ND 12/29/94 1,3-Dichlorobenzene EPA 601 ug/1 1.5 ND 12/29/94 1,4-Dichlorobenzene EPA 501 ug/1 1.2 ND 12/29/94 1,2-Dichlorobenzene EPA 501 ug/1 1.2 ND 12/29/94 Signed I I I Analy I vz I vz vz vz I vz vz vz vz I vz I I I I I I I I I I I I I I I I I I I I I I I I I I I I ···I I, LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT Date Page .01/09/95 1 ---Project Information --- Lab Number Project No. Project Name 94-9646-02 56-4533 TOOO CONOCO 33047 Manager: SHARON TYNDALL Cust. No. ---Sample Information --- Station IO Matrix Type Collector MW-2 w GRAB DSG Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers 12/16/94 12/17/94 DSG/JA 29384 6 14:55 08:55 Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --METALS PREP RESULTS -- Metals Prep: Acid Extracted ---SERIES 39000 Lead, Extractable --GC ORGANIC ANALYSIS RESULTS 1,2-Dibromoethane (EDB) Ext/1,2-Dibromoethane (EDB) SM 3030C EPA 6010 EPA 504 EPA 504 --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- Oichlorodifluoromethane EPA 601 Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride 1,2-Dichloroethane Trichloroethane 1,2-Dichloropropane Bromodichloromethane 2-Chloroethylvinyl ether cis-1,3-Dichloropropene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Remarks: DL = Detection Limit EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 mg/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 0.032 0.02 0.59 0.47 0.53 0.48 0.52 0.86 0.67 2.0 0.73 0.78 0.75 1.8 0.75 0.89 0. 83 0.74 0.81 1.9 0.69 0.84 0.86 EXTRACTED 12/17/95 CW ND 12/19/94 SDE ND 12/24/94 DCE EXTRACTED 12/22/94 BT ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz 12/31/94 vz ND = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry Signed / I Date Page 01/09/95 2 Lab Number Project No. 94-9646-02 56-4533 TOOO LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT I I I I Parameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method. . . . Units DL ........ Results ... Test Date Analy --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- Tetrachloroethane EPA 601 ug/1 0.91 3.1 12/31/94 vz I Dibromochloromethane EPA 601 ug/1 0.85 ND 12/31/94 vz Chlorobenzene EPA 601 ug/1 0.82 ND Bromoform EPA 601 ug/1 0.80 ND 1,1,2,2,-Tetrachloroethane EPA 601 ug/1 1.1 ND 12/31/94 vz I 12/31/94 vz 12/31/94 vz 1,3-Dichlorobenzene EPA 601 ug/1 1.5 ND 12/31/94 vz 1,4-0ichlorobenzene EPA 601 ug/1 1.2 ND 1,2-0ichlorobenzene EPA 601 ug/1 1.2 ND 12/31/94 vz I 12/31/94 vz I I I I I I I I I Signed I I I I I I I I I I I I I I I I LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT Date Page 01/09/95 1 Lab Number Project No. Project Name 94-9646-03 56-4533 TOOO· CONOCO 33047 Manager: SHARON TYNDALL Station ID Matrix Type Collector MW-3 w GRAB DSG ---Project Information --- Cust. No. ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers 12/16/94 13:40 12/17/94 08:55 DSG/JA 29384 6 Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --METALS PREP RESULTS -- Metals Prep: Acid Extracted SM 3030C EXTRACTED 12/17/95 cw ---SERIES 39000 Lead, Extractable EPA 6010 mg/1 0.032 0.076 12/19/94 SDE --GC ORGANIC ANALYSIS RESULTS 1,2-Dibromoethane (EDB) EPA 504 ug/1 0.02 ND 12/24/94 DCE Ext/1,2-Dibromoethane (EDB) EPA 504 EXTRACTED 12/22/94 BT --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- Dichlorodifluoromethane EPA 601 ug/l 0.59 ND 12/29/94 vz Chloromethane EPA 601 ug/l 0.47 ND 12/29/94 vz Vinyl Chloride EPA 601 ug/l 0.53 ND 12/29/94 vz Bromomethane EPA 601 ug/l 0.48 ND 12/29/94 vz Chloroethane EPA 601 ug/l 0.52 ND 12/29/94 vz Trichlorofluoromethane EPA 601 ug/l 0.86 ND 12/29/94 vz 1,1-Dichloroethene EPA 601 ug/l 0.67 ND 12/29/94 vz Methylene Chloride EPA 601 ug/l 2.0 ND 12/29/94 vz trans-1,2-Dichloroethene EPA 601 ug/l 0.73 ND 12/29/94 vz 1,1-Dichloroethane EPA 601 ug/l 0.78 ND 12/29/94 vz Chloroform EPA 601 ug/l 0.75 ND 12/29/94 vz 1,1,1-Trichloroethane EPA 601 ug/l 1.8 ND 12/29/94 vz Carbon Tetrachloride EPA 601 ug/l 0.75 ND 12/29/94 vz 1,2-Dichloroethane EPA 601 ug/l 0.89 ND 12/29/94 vz Trichloroethane EPA 601 ug/l 0.83 ND 12/29/94 vz 1,2-Dichloropropane EPA 601 ug/l 0.74 ND 12/29/94 vz Bromodichloromethane EPA 601 ug/l 0.81 ND 12/29/94 vz 2-Chloroethylvinyl ether EPA 601 ug/l 1.9 ND 12/29/94 vz cis-1,3-Dichloropropene EPA 601 ug/l 0.69 ND 12/29/94 vz trans-1,3-Dichloropropene EPA 601 ug/l 0. 84 ND 12/29/94 vz 1,1,2-Trichloroethane EPA 601 ug/l 0.86 ND 12/29/94 vz Remarks: DL = Detection Limit ND = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry Signed . i : I i . / Date Page 01/09/95 2 Lab Number Project No. 94-9646-03 56-4533 TOOO LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT Parameter .............................. Method .... Units DL ........ Results ... Test Date --GC VOLATILE ORGANIC ANALYSIS (AQ) Tetrachloroethane Dibromochloromethane Chlorobenzene Bromoform 1,1,2,2,-Tetrachloroethane 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,2-Dichlorobenzene RESULTS -- EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 ug/1 0.91 ug/1 0.85 ug/1 0.82 ug/1 0.80 ug/1 1.1 ug/1 1.5 ug/1 1.2 ug/1 1.2 Signed ND 12/29/94 ND 12/29/94 ND 12/29/94 ND 12/29/94 ND 12/29/94 ND 12/29/94 ND 12/29/94 ND 12/29/94 I I I I Analy vz I vz vz vz I vz vz vz vz I I I I I I I I I I I I I I I I I I I I I I I I I I I LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT Date 01/09/95 Page 1 Lab Number Project No. Project Name 94-9646-04 56-4533 TOOO CONOCO 33047 Manager: SHARON TYNDALL Station ID Matrix Type Collector MW-5 w GRAB DSG ---Project Information --- Cust. No. ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers 12/16/94 12/17/94 DSG/JA 29384 6 13:50 08:55 Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --METALS PREP RESULTS -- Metals Prep: Acid Extracted SM 3030C EXTRACTED 12/17/95 cw ---SERIES 39000 Lead, Extractable EPA 6010 mg/1 0.032 ND 12/19/94 SDE --GC ORGANIC ANALYSIS RESULTS 1,2-Dibromoethane (EDB) EPA 504 ug/1 0.02 ND 12/24/94 DCE Ext/1,2-Dibromoethane (EDB) EPA 504 EXTRACTED 12/22/94 BT --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- Oichlorodifluoromethane EPA 601 ug/1 0.59 ND 12/29/94 vz Chloromethane EPA 601 ug/1 0.47 ND 12/29/94 vz Vinyl Chloride EPA 601 ug/1 0.53 ND 12/29/94 vz Bromomethane EPA 601 ug/1 0.48 ND 12/29/94 vz Chloroethane EPA 601 ug/1 0.52 ND 12/29/94 vz Trichlorofluoromethane EPA 601 ug/1 0.86 ND 12/29/94 vz 1,1-Dichloroethene EPA 601 ug/1 0.67 ND 12/29/94 vz Methylene Chloride EPA 601 ug/1 2.0 ND 12/29/94 vz trans-1,2-Dichloroethene EPA 601 ug/1 0.73 ND 12/29/94 vz 1,1-Dichloroethane EPA 601 ug/1 0.78 ND 12/29/94 vz Chloroform EPA 601 ug/1 0.75 49 12/29/94 vz 1,1,1-Trichloroethane EPA 601 ug/1 l.S ND 12/29/94 vz Carbon Tetrachloride EPA 601 ug/l 0.75 ND 12/29/94 vz 1,2-Dichloroethane EPA 601 ug/1 0.89 ND 12/29/94 vz Trichloroethane EPA 601 ug/1 0.83 ND 12/29/94 vz 1,2-Dichloropropane EPA 601 ug/1 0.74 ND 12/29/94 vz Bromodichloromethane EPA 601 ug/1 0.81 ND 12/29/94 vz 2-Chloroethylvinyl ether EPA 601 ug/1 1.9 ND 12/29/94 vz cis-1,3-Dichloropropene EPA 601 ug/1 0.69 ND 12/29/94 vz trans-1,3-Dichloropropene EPA 601 ug/1 0.84 ND 12/29/94 vz 1,1,2-Trichloroethane EPA 601 ug/1 0.86 ND 12/29/94 vz Remarks: DL = Detection Limit ND = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry weight. Signed e' --1V' P'h?, c&d Date 01/09/95 Page 2 Lab Number Project No. 94-9646-04 56-4533 TOOO LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT Parameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method. . . . Units DL ........ Results ... Test Date --GC VOLATILE ORGANIC ANALYSIS (AQ) Tetrachloroethane Dibromochloromethane Chlorobenzene Bromoform 1,1,2,2,-Tetrachloroethane 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1,2-0ichlorobenzene RESULTS -- EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 ug/1 0.91 ND 12/29/94 ug/1 0.85 ND 12/29/94 ug/1 0. 82 ND 12/29/94 ug/1 0.80 ND 12/29/94 ug/1 1.1 ND 12/29/94 ug/1 1.5 ND 12/29/94 ug/1 1.2 ND 12/29/94 ug/1 1.2 ND 12/29/94 Signed I I I vz I vz vz vz I vz vz vz vz I I I I I I I I I I I I I I I I I I I I I I I I I I I I I LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT Date 01/09/95 Page 1 Lab Number Project No. Project Name 94-9646-05 56-4533 TOOO CONOCO 33047 Manager: SHARON TYNDALL Station ID Matrix Type Collector MW-6 w GRAB DSG ---Project Information --- Cust. No. ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers 12/16/94 12/17/94 DSG/JA 29384 6 14:10 08:55 Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --METALS PREP RESULTS -- Metals Prep: Acid Extracted SM 3030C EXTRACTED 12/17/95 cw ---SERIES 39000 Lead, Extractable EPA 6010 mg/1 0.032 NO 12/19/94 SDE --GC ORGANIC ANALYSIS RESULTS 1,2-Dibromoethane (EDB) EPA 504 ug/1 0.02 NO 12/24/94 DCE Ext/1,2-Dibromoethane (EDB) EPA 504 EXTRACTED 12/22/94 BT --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- Oichlorodifluoromethane EPA 601 ug/1 0.59 NO 12/30/94 vz Chloromethane EPA 601 ug/1 0.47 NO 12/30/94 vz Vinyl Chloride EPA 601 ug/1 0.53 NO 12/30/94 vz Bromomethane EPA 601 ug/1 0.48 NO 12/30/94 vz Chloroethane EPA 601 ug/1 0.52 NO 12/30/94 vz Trichlorofluoromethane EPA 601 ug/1 0.86 NO 12/30/94 vz 1,1-0ichloroethene EPA 601 ug/1 0.67 NO 12/30/94 vz Methylene Chloride EPA 601 ug/1 2.0 NO 12/30/94 vz trana-1,2-Dichloroethene EPA 601 ug/1 0.73 NO 12/30/94 vz 1,1-Dichloroethane EPA 601 ug/1 0.78 NO 12/30/94 vz Chloroform EPA 601 ug/1 0.75 NO 12/30/94 vz 1,1,1-Trichloroethane EPA 601 ug/1 1.8 NO 12/30/94 vz Carbon Tetrachloride EPA 601 ug/1 0.75 NO 12/30/94 vz 1,2-Dichloroethane EPA 601 ug/1 0.89 NO 12/30/94 vz Trichloroethane EPA 601 ug/1 0.83 NO 12/30/94 vz 1,2-Dichloropropane EPA 601 ug/1 0.74 NO 12/30/94 vz Bromodichloromethane EPA 601 ug/1 0.81 NO 12/30/94 vz 2-Chloroethylvinyl ether EPA 601 ug/1 1.9 NO 12/30/94 vz cis-1,3-Dichloropropene EPA 601 ug/1 0.69 NO 12/30/94 vz trans-1,3-Dichloropropene EPA 601 ug/1 0.84 NO 12/30/94 vz 1,1,2-Trichloroethane EPA 601 ug/1 0.86 NO 12/30/94 vz Remarks: DL = Detection Limit ND = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry weight. Signed A-af cTVJr c~=:l ..... Date Page 01/09/95 2 Lab Number Project No. 94-9646-05 56-4533 TOOO LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT I I I I Parameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method. . . . Units DL ........ Results ... Test Date Analy --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- Tetrachloroethane EPA 601 Oibromochloromethane EPA 601 Chlorobenzene EPA 601 Bromoform EPA 601 1,1,2,2,-Tetrachloroethane EPA 601 1,3-Dichlorobenzene EPA 601 1,4-Dichlorobenzene EPA 601 1,2-Dichlorobenzene EPA 601 ug/1 0.91 ug/1 0.85 ug/1 0.82 ug/1 0.80 ug/1 1.1 ug/1 1.5 ug/1 1.2 ug/1 1.2 Signed ND 12/30/94 vz I ND 12/30/94 vz ND ND ND 12/30/94 vz 12/30/94 vz I 12/30/94 vz ND 12/30/94 vz ND ND 12/30/94 vz 12/30/94 vz I I I I I I I I I I I d-;V~,~J· I I I I I I I I I I I I I I I I I LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT Date Page 01/09/95 1 Lab Number Project No. Project Name 94-9646-06 56-4533 TOOO CONOCO 33047 Manager: SHARON TYNDALL Station IO Matrix Type Collector MW-7 w GRAB DSG ---Project Information --- Cust. No. ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers 12/16/94 14:40 12/17/94 08:55 DSG/JA 29384 6 Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --METALS PREP RESULTS -- Metals Prep: Acid Extracted SM 3030C EXTRACTED 12/17/95 cw ---SERIES 39000 Lead, Extractable EPA 61ilO mg/1 0.032 ND 12/19/94 SDE --GC ORGANIC ANALYSIS RESULTS 1,2-Dibromoethane (EDB) EPA 504 ug/1 0.02 ND 12/24/94 DCE Ext/1,2-Dibromoethane (EDB) EPA 504 EXTRACTED 12/22/94 BT --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- Dichlorodifluoromethane EPA 601 ug/1 0.59 ND 12/31/94 vz Chloromethane EPA 601 ug/1 0.47 ND 12/31/94 vz Vinyl Chloride EPA 601 ug/1 0.53 ND 12/31/94 vz Bromomethane EPA 601 ug/1 0.48 ND 12/31/94 vz Chloroethane EPA 601 ug/1 0.52 ND 12/31/94 vz Trichlorofluoromethane EPA 601 ug/1 0.86 ND 12/31/94 vz 1,1-Dichloroethene ,EPA 601 ug/1 0.67 ND 12/31/94 vz Methylene Chloride EPA 601 ug/1 2.0 ND 12/31/94 vz trans-1,2-Dichloroethene EPA 601 ug/1 0.73 ND 12/31/94 vz 1,1-Dichloroethane EPA 601 ug/1 0.78 ND 12/31/94 vz Chloroform EPA 601 ug/1 0.75 ND 12/31/94 vz 1,1,1-Trichloroethane EPA 601 ug/1 1.8 ND 12/31/94 vz Carbon Tetrachloride EPA 601 ug/1 0.75 ND 12/31/94 vz 1,2-Dichloroethane EPA 601 ug/1 0.89 ND 12/31/94 vz Trichloroethane EPA 601 ug/1 0.83 ND 12/31/94 vz 1,2-Dichloropropane EPA 601 ug/1 0.74 ND 12/31/94 vz Bromodichloromethane EPA 601 ug/1 0.81 ND 12/31/94 vz 2-Chloroethylvinyl ether EPA 601 ug/1 1.9 ND 12/31/94 vz cis-1,3-Dichloropropene EPA 601 ug/1 0.69 ND 12/31/94 vz trans-1,3-Dichloropropene EPA 601 ug/1 0.84 ND 12/31/94 vz 1,1,2-Trichloroethane EPA 601 ug/1 0.86 ND 12/31/94 vz Remarks: DL = Detection Limit NO = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry Signed , .. Date 01/09/95 Page 2 Lab Number Project No. 94-9646-06 56-4533 TOOO LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT I I I I Parameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method. . . . Units DL ........ Results ... Test Date Analy --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- Tetrachloroethane EPA 601 Dibromochloromethane EPA 601 Chlorobenzene EPA 601 Bromoform EPA 601 1,1,2,2,-Tetrachloroethane EPA 601 1,3-Dichlorobenzene EPA 601 1,4-Dichlorobenzene EPA 601 1,2-0ichlorobenzene EPA 601 ug/1 0.91 ug/1 0.85 ug/1 0.82 ug/1 0.80 ug/1 1.1 ug/1 1.5 ug/1 1.2 ug/1 1.2 Signed ND 12/31/94 vz I ND 12/31/94 vz ND ND ND 12/31/94 vz 12/31/94 vz I 12/31/94 vz ND 12/31/94 vz ND ND 12/31/94 vz I 12/31/94 vz I I I I I I I I I I f!-af~r~ I I I I I I I I I I I I I I I I I I I Date 01/09/95 Page 1 Lab Number Project No. Project Name LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT 94-9646-07 56-4533 TODD CONOCO 33047 ---Project Information Cust. No. Manager: SHARON TYNDALL Station ID Matrix Type Collector MW-8 w GRAB DSG ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers 12/16/94 12/17/94 DSG/JA 29384 6 14:35 08:55 Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --METALS PREP RESULTS -- Metals Prep: Acid Extracted ---SERIES 39000 Lead, Extractable --GC ORGANIC ANALYSIS RESULTS 1,2-Dibromoethane (EDB) Ext/1,2-Dibromo9thane (EDB) SM 3030C EPA 6010 EPA 504 EPA 504 --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- Dichlorodifluoromethane EPA 601 Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Methylene Chloride. trans-1,2-Dichloroethene 1,1-0ichloroethane Chloroform 1,1,1-Trich1oroethane Carbon Tetrachloride 1,2-0ichloroethane Trichloroethane 1,2-0ichloropropane Bromodichloromethane 2-Chloroethylvinyl ether cis-1,3-0ichloropropene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Remarks: DL = Detection Limit EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 EPA 601 I!PA 601 EPA 601 mg/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 ug/1 0.032 0.02 0.59 0.47 0.53 0.48 0.52 0.86 0.67 2.0 0.73 0.78 0.75 1.8 0.75 0.89 0.83 0.74 0.81 1.9 0.69 0. 84 0.86 EXTRACTED 12/17/95 CW 0.21 12/19/94 SDE ND 12/24/94 DC!! EXTRACTED 12/22/94 BT ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz 12/30/94 vz NO = Not Detected at the OL Unless otherwise noted, all soil test results are calculated based on dry weight. Signed / Date 01/09/95 Page 2 Lab Number Project No. 94-9646-07 56-4533 TOOO LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT Parameter .............................. Method .... Units OL ........ Results ... Test Date --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- Tetrachloroethane EPA 601 ug/1 0.91 ND 12/30/94 Dibromochloromethane EPA 601 ug/1 0. 85 ND 12/30/94 Chlorobenzene EPA 601 ug/1 0.82 ND 12/30/94 Bromoform EPA 601 ug/1 0.80 ND 12/30/94 1,1,2,2,-Tetrachloroethane EPA 601 ug/1 1.1 ND 12/30/94 1,3-Dichlorobenzene EPA 601 ug/1 1.5 ND 12/30/94 1,4-Dichlorobenzene EPA 601 ug/1 1.2 ND 12/30/94 1,2-Dichlorobenzene EPA 601 ug/1 1.2 ND 12/30/94 I I I vz I vz vz vz I vz vz vz vz I I I I I I I I I I Signed I ~~ /;u(Cft\ __ L. I I I I I I I I I I I I I I I I I I li I I LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT Date 01/09/95 Page 1 Lab Number Project No. Project Name 94-9646-08 56-4533 TOOO CONOCO 33047 Manager: SHARON TYNDALL Station ID Matrix Type Collector TRIP BLANK w GRAB ---Project Information --- Cust. No. ---Sample Information --- Sampled Date/Time Received Date/Time Received From/By Chain of Custody Number of Containers 11/16/94 12/17/94 08:55 DSG/JA 29384 10 Parameter .............................. Method .... Units DL ........ Results ... Test Date Analy --GC ORGANIC ANALYSIS RESULTS 1,2-0ibromoethane (EDB) EPA 504 ug/1 0.02 ND 12/23/94 DCE Ext/1,2-Dibromoethane (EDB) EPA 504 EXTRACTED 12/22/94 BT --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- Dichlorodifluoromethane EPA 601 ug/l 0.59 ND 12/29/94 vz Chloromethane EPA 601 ug/l 0.47 ND 12/29/94 vz Vinyl Chloride EPA 601 ug/l 0.53 ND 12/29/94 vz Bromomethane EPA 601 ug/l 0.48 ND 12/29/94 vz Chloroethane EPA 601 ug/l 0.52 ND 12/29/94 vz Trichlorofluoromethane EPA 601 ug/l 0.86 ND 12/29/94 vz 1,1-Dichloroethene EPA 601 ug/l 0.67 ND 12/29/94 vz Methylene Chloride EPA 601 ug/l 2. 0 ND 12/29/94 vz trans-1,2-Dichloroethene EPA 601 ug/l 0.73 ND 12/29/94 vz 1,1-Dichloroethane EPA 601 ug/l 0.78 ND 12/29/94 vz Chloroform EPA 601 ug/l 0.75 ND 12/29/94 vz 1,1,1-Trichloroethane EPA 601 ug/l 1.8 ND 12/29/94 vz Carbon Tetrachloride EPA 601 ug/l 0.75 ND 12/29/94 vz 1,2-Dichloroethane EPA 601 ug/l 0.89 ND 12/29/94 vz Trichloroethane EPA 601 ug/l 0.83 ND 12/29/94 vz 1,2-Dichloropropane EPA 601 ug/l 0.74 ND 12/29/94 vz Bromodichloromethane EPA 601 ug/l 0.81 ND 12/29/94 vz 2-Chloroethylvinyl ether EPA 601 ug/l 1.9 ND 12/29/94 vz cis-1,3-Dichloropropene EPA 601 ug/l 0.69 ND 12/29/94 vz trans-1,3-Dichloropropene EPA 601 ug/l 0. 84 ND 12/29/94 vz 1,1,2-Trichloroethane EPA 601 ug/l 0.86 ND 12/29/94 vz Tetrachloroethane EPA 601 ug/l 0.91 ND 12/29/94 vz Dibromochloromethane EPA 601 ug/l 0.85 ND 12/29/94 vz Chlorobenzene EPA 601 ug/l 0.82 ND 12/29/94 vz Bromoform EPA 601 ug/l 0.80 ND 12/29/94 vz 1,1,2,2,-Tetrachloroethane EPA 601 ug/l 1.1 ND 12/29/94 vz 1,3-Dichlorobenzene EPA 601 ug/l 1.5 ND 12/29/94 vz Remarks: DL = Detection Limit ND = Not Detected at the DL Unless otherwise noted, all soil test results are calculated based on dry weight. ~ Signed L--;{]1 ~~ Date Page 01/09/95 2 Lab Number Project No. 94-9646-08 56-4533 TOOO LAW ENVIRONMENTAL NATIONAL LABORATORIES TEST DATA REPORT I I I Parameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Method. . . . Units DL ........ Results ... Test Date --GC VOLATILE ORGANIC ANALYSIS (AQ) RESULTS -- 1,4·Dichlorobenzene 1,2-Dichlorobenzene EPA 601 EPA 601 ug/1 ug/1 1.2 1.2 Signed NO NO 12/29/94 12/29/94 vz vz I I I I I I I I I I I I I e-4/~e;-J I -z· --~---~..._-- - - - - - - - - --. - - - LAW ENVIRONMENTAL, INC. NATIONAL LABORATORY 112 TOWN PARK DRIVE KENNESAW, GEORGIA 30144 (404) 421-3400 INTRA-LABORATORY SAMPLE TRANSFER RECORD SAMPLERS(~ SAMPLING INFORMATION NPDES NUMBER 1:J~ 0~ rS~A-M-PL-IN-G~D-A_T_E ______________________ -1~~ ~--~~~/.~~--~~~6~?~'V __________ ~§! TIME ~ ~ • SllJRCf: f§ 8 CODE SAMPLE STATION DESCRIPTION J</1('--~ 50 5,12-1 12- /'(JV )C w ?lf_iJ-I I ) I Ncr } lA I ~~~--;l I J /3Li<J y rr.f "111 "'-' -3 I I 13so X' VJ .ntt.J-_f-.1 I /'/tu w-{;J M'M-/, I I )/~ r tJ ( ?1/tu-( I I 1'135"' ,( (,..) /If w-t I I -:::J(f )f /,J --1_ ~ ~ .k. z... '-- 1/ NAME OF FACILITY:-------------------- STREET ADDRESS: ------------------- LENL LAB NO. I I ~oz. -of.t -of --·--i~t~ -- LAW ENVIRONMENTAL, INC. NATIONAL LABORATORY 112 TOWNPARK DRIVE KENNESAW, GEORGIA 30144 CHAIN OF~etJSTODV RECORD N~ 29384 (404) 421-3306 ,- v WATER·W i.J I 'MATRIX SOIL I SEDIMENT· SO SAMPLE STATION DESCRIPTION Y~MJ--L -3 -5 ,vtMJ-6 t'VtMJ -l VlvW -a DATE I TIME SLUDGE· SL OTHER· NA REMARKS SAMPLING INFORMATION 7 1 5 7 ~ 1 ..., 3 3 7 3 7 '3 3> NAME OF FACILITY: ---=-=-"--'-'-2..~--'-"'=--'-L------------­ STREET ADDRESS:---.---,.---...,..,.---;--------------- DATE I TIME RELINQUISHED BY: PINK COPY RETAINED BY SAMPLERS. YELLOW COPY RETAINED BY LABORATORY. - I I I I I I I I I I I I I I I I I I I Conoco Store No. 33047-Comprehensive Site Assessment Report Law Engineering Project 56-4533 APPENDIXF CALCULATIONS February 6, 1995 Final I I I I I I I I I I I I I LAW ENGINEERING AND ENVIRONMENTAL SERVICES p• •• :' }, -' (\ ·. D • :;o r~_,J~~-o~L.II75f:. 34t>f+ L e " ~::79·£'1, n -( IJ, Zz+. ~2) 8.4btt !.-vr > '?~.! :r<oft ~t = .40 f€\'..t t ~ 7. S fr\1 n t_ =. 1. s min. ; -4 2 X I 0 C<t»f Sec.- JOB NO. C:i; · U ;;;; ] SHEET----'----OF_/,__ __ JOBNAME~C~&~~O~l~O~~-;,~:·,_J~~·;_· _______ __ BY SdY!1" DATE __ci...:_}.:::.:;,.:.J.y-'-/-'-q~::...:;' ___ _ CHECKEDBY ~ DATE ___:_o_I/.=_2C):....c/_q_t; __ _ r _ , r. , ell/ ". ~ ' '.A; ? ' ~ ... 10.3(., I.-e. -)&-fff_ ~ 2~ -( 14. 23 +' 41) 10' 3t.. t.,v..; , itvn ,: " t " IS m'n 1~------------------------~---------- FORM 17 LAW ENGINEERING TESTING COMPANY JOBNAME 0-otJvu !J'JO'i7 JOB NO. 5'(, • </.f"J3 BY ]5g j/11 l DATE /2.-·11.-9'1 CK _____ DATE ____ SHEET.2.:.oF..]_ 0 .5 1-J I -::;;.:. ( ;..-..:,;-----4.!-f ;-. -AI{~~If'o --. I t.j. I 0 ..... ______ _ , ~ ~ ·-_ I . 0 \?J•~t---__ ._Lp~ __ 0~~-v__ __ _ __ ---, ·-------- 1. 5 ______ H·(P'9 _______ .~P:. ______ _ ' 0 __ \?: tp} ----~Lf_L __ ---\'lJ·lf-~--------1---·~P -------·---------. f----- )..5 3-0 3.5 ---· -·-- -.. -· -· -------+----- / -~--~-___,\.:.L.'.'?:>· s__:_q --t--'---' 0LL/1_-+___._.__,_L{ ?:::_____ _______________________ _ ___:_<+:_::..5_-+------l-----+----------------------------------------~ ~v~-~"-4----\1~·~~-~~~r-~·~3~·~~/--~-·~~~o ____ +---------·-··----------~ ____ 7. ~---t-----.,---------t-----,----+-----:-------------·· 1[f0 s~--_\.___.'?~·<?:..cll'-------1-----' H ____ ·~3 __ -----------------------~--------_-_ ----- -~:_'!_ __ ---------1-------------------- jD'fl"-,o:~--------i------------lr _l\_ _____ /3. 53 __ -3_1 ____ I-_0S_--t---------- ~Jooq__J_l~!!._---1-'7-----t----+-------l---------------- ID! [;J. CJ'I • ?--q .33 --------------'"------------------------------------- I I I I I I I I I I I I 1 ?-~~ ~H --_13·~'1...!_1 ___ --+-_ .• ~?-::..-'.6 ---1-----..1.:-=--g --1-------------------------------I ------I --------· --·--·--··- . --------------------1---------l------1-----· ------------------------- -------~-----·--- -------------+-----+-------1---------------··. -· --------. --------I ----------------------------·-··· -------- ·-----------------------· -----I I ·------------·-----t---------1-------------···----------·-.......... --- I ,f:. -- ~0-163~ (7n0W :)h,"'t,. ;;,~ O'i7 . ::·182 I I I I I ' ' ' ' ' ' ' ' ' ' ' ' ' ' I ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' I ' I I ' ' ' ' ' ' ' ' ' I b. I >--. -.,- ~ i::. I " "" ~ I ~\:' ~~ It'-.) -..I I ~ I 1 I I .u I ':') Semi-Lo!l.arUhmlc 2 Cycles :1 10 to the Inch ''I 10 I if'--· . . -,1/) 8/tfSIP().: "ii1146,t(l'ft,.,rres) . -.,)':.:·~ ,. -··; .. ·.·,· ·"{.'·f:'/:' ··· . I ('cnow 1< '3304 1 jPROJNAME: PROJ NO: Sb--.2jS"3~_-' I I I i 1 HYDRAULIC CONDUCTIVITY CALCULATION WORKSHEET ~Monitoring Well: MW-8 I Test Date: ___ --::01-o'2::-'-I0'-60::-9::-'4=---- Prepared by:~KM:'-':0----------­ Checked by:_,_JL,_G"------------ I I I Test Type: ___ _,S00L00U'-'G'--O=UT_,_ __ _ I I < -EOUATIONVARIABLES rc = n= rw= Le = Lw= H= yo= yt= t= Sand Pack= 0.083 (ft) 0.30 0.417 (ft) 8.46 (fi) 8.46 (ft) 50.0 (fi) 0.47 (ft) 0.40 (ft) 2.5 (min) YES -. -EQUATIONS rc (adJUSted)= Lelrw = ln(Lw/rw)= ln(Relrw)= ---9)_'1_ (11) 20.29 3.01 \. 78 (see below) 1----:-:---;-;--:--;:--:--:=---,----:-:-=--:-:-:-:-:c-:---:--------i K-[(rc'2ln(Re/rw))/2LcJ"(l/t)ln(yo/yt) I I I ! K= 4E-04 (ft/min) K= 2E-04 (em/sec) ' J I ' I I I I I Table of Coefficients (dimensionless) Lelrw A B c ~-----~~~~~~~~~~~~~----~----~~-~C~a~lc~u~la~t~io~n_,o~f~C~o=cffi~•~•~ic~n~ts=-~~-----~' Value range for Le/Rw from Table of Coefficients Le/rw I A I B 1 C 4 1.75 0.25 0.75 5 1.76 0.25 0.85 20 2.23 0.29 25 2.40 0.31 175j_ 1.9 6 1.77 0.25 0.90 7 1.80 0.25 1.00 I-------:;-----7-~----';'-:-:'-------':"::-::-J--------'In"-t"'e'-""ro<o'i-'la"'te-,d,_V=alucs of A Band C for Lc/Rw 20.291 2.241 0.291 1.76! 8 1.83 0.25 1.10 9 1.90 0.25 1.20 10 1.95 0.25 1.30 IS 2.10 0.27 1.50 I I j 20 2.23 0.29 175 25 2.40 OJ! 1.90 30 2.50 0.35 2.10 Where: Lw < H: Calculation of ln(Rc/nvl_ __ --··-----~ 40 2.75 0.45 2.45 ----------·--1, 50 3.00 0.50 270 ln((H-Lw)lrw)= __ _ 6.00 • 60 3.45 0.52 3.00 70 3.70 0.60 3.40 • Effective upper limit is 6 (Bouwcr and Rice, 1976) 80 3.90 0.65 3.60 90 4.20 0.70 3.85 100 4.50 0.75 4.20 I ln(Rc/rw)"' { 1.1/ln(Lwlrw)) • {A • Btn[(H·Lw)lrw]}I(Lcirwl J"·l ISO 5.45 0.98 5.70 1.78 200 6.10 1.20 7.00 250 6.70 1.30 8.00 7.10 1.50 ~----------------------------------1 ~-----~~----~~----~~------~~ 300 8.80 Where: Lw = H; 400 7.75 1.90 9.90 500 8.20 2.20 10.60 600 8.50 2.33 11.10 ln(Re/rw) = (l.llln(Lwlrw)+C/(Lc/rw)J"·l I 700 8.70 2.50 11.50 800 8.90 2.70 11.80 900 9.00 2.75 12.00 =calculation Not Appropriate (Lw not equal to H) I 1000 9.20 2.83 12.40 1500 9.50 3.18 12.90 e ercnces: ouwer ( ), ouwer an tee ( 1976) =-=======111 I I I I I I I I I I I I I I I I I I I LAW ENGINEERING TESTING COMPANY JOBNAME ____ ~U~N~o~w~}~7a~~~7 ____ JOBNO. 5~-f5J~ BY DS~i! siVl r DATE CK _________ DATE _______ SHEET 5 OF_]_ J . 5 {. J /.( i}-· D ~·S ~.o :?·S ~.o ,LOC.AT/0/..J : !VIMJ-J 1/•L./1 .......... _ ?:'2-~ __ J,O _ Ill· q1_ _____ ')_• .U. __ • 9£ ..... __ . I?'. 07 _____ _. 8 'f • 7._y, 11-/·7~ .s;-.11 --·--.. --·---··-_.. ... .. ---.. - lt./•LPV . :S7 I L{, '-( q . lio ......... -.. ·I--..... IL/·44 .21 ----.. f-· -...... ----.. -·. .. ___ ··-·-··------·--------- -· ---·"' .. --.. --........... ---· <J,O . ---1-------'--+----+----1--·----.. -· ·-···----·------ ··------\------+-----+-----!--· .. ---...... _ -·----·------------- .. -·-·-· ----------1---·-.. -· ·-----______ .. ___ .. ________ _ -------+-------· .. ·--· .. -··---------r- ··--------·--------· ----. ·--·----........ -----!------+----+------+--____ .. ______ _ ---------· --------1----·---r--·------+-----.. ------.. ·------------- ...... -···----------+--............... _ ... ____ -----· _ .. --... -........ , __ --------·------- ---_ .. _,,_ .... ----.. ·-· ··-·--" -----------f-------·--1-------·-- .. ----1----...... --r-· .. ---------1-------·--- -----------+-------+-----+-----.... _ ... ----·-. ··--.. -··· .. ----- -------1-------!--·"--·--·· .. ----· ----------·· ..... -----------·!-----·---+--------1--- ·0.':· . :.;; n. ~-~rltbmic I 2 Cycles :a: 10 to the inch I I I I I I I I I I I I I ' I ' I I 0 1 r:· 11'\uf-:3 I I I I I I I I I I I I I ' 10 11 ., lt.:··· -~~' 1 .. T/11116, (( ""'"rres) 6w-l./633 ~h!t+ b o+ 1 CoNow ?we. 37o'\l I I I I I I I I I ! ' I I I I I I I I I I I I I I I I I( I~ 11. .... I Sl>ett 1 Ot 7 c. PROJNAME: \. ()\1uL0 .tt ??V41 PROJ NO: Gi.,_· 4c;;_33. -! I ' I HYDRAULIC CONDUCTIVITY CALCULATION WORKSHEET ' ! I ' Monitoring Well: MW-3 Prepared by: KM I Test Date: 12-16-94 Checked by: JLG Test Type: SLUG-OUT I I I I .·.,,, EOUATIONVARIABLES· :'// i i'. I , ··•: •::. ,. EQUATIONS I I I rc = 0.083 (fi) rc (adjusted)= 0.24 (!\) I n= 0.30 Le/rw-24.84 I rw= 0.417 (ft) ln(Lw/rw)= 3.21 i I Le= 10.36 (ft) ln(Re/rw)= I. 95 (sec below) I Lw= 10.36 (ft) H= 50.0 (f\) K -l(rcA2 ln(Re/rw))/2Lcl"(l/t)ln(yo/yt) i yo= 3.20 (!\) I I yt= 1.00 (ft) K= 4E-t13 (ft/min) I t= 1.5 (min) i K= ~I An (em/sec ·1 Sand Pack= YES ----~------~---··-_I I I I I I Table of Coefficients (dimensionless) Calculation of Cocffi.ci~.:nts I ----------.. ·-·-·· Value range for Le/R w from Table of Cocllicicnts I Lc/rw A B c Le/rw I A_ ....... L. 13 .1 ... c i 4 1.75 0.25 0.75 20 2.23 0.29 ··------1:75 i ·---··--· 1.90-i 5 1.76 0.25 0.85 25 2.40 0.31 6 1.77 0.25 0.90 Interpolated Values of A, 13 and C for Lc/Rw I : I I 7 1.80 0.25 1.00 24.841 2.391 o_, t I 1.90 8 1.83 0.25 1.10 I 9 1.90 0.25 1.20 I I 10 1.95 0.25 1.30 ' I 15 2.10 0.27 1.50 i 20 2.23 0.29 1.75 Calculation of ln(Re/rw): ' ----- 25 2.40 0.31 1.90 l I 30 2.50 0.35 2.10 Where: Lw < H: ' I 40 2.75 0.45 2.45 50 3.00 0.50 2.70 ln((li-Lw)frw)= 6.00 . I 60 3.45 0.52 3.00 70 3.70 0.60 3.40 • Effective upper limit is 6 (Bouwcr and Rice, 1976) 80 3.90 0.65 3.60 i 90 4.20 0.70 3.85 ln(Rc/rw) ::: {I. 11\n(Lwtm)} • {A • Blni(H-Lw)tm·l)i(Lcim} 1"·1 I 100 4.50 0.75 4.20 150 5.45 0.98 5.70 = 1.95 200 6.10 1.20 7.00 . 250 6.70 1.30 8.00 I 300 7.10 1.50 8.80 Where: Lw = H; 400 7.75 1.90 9.90 500 8.20 2.20 10.60 ln(Relrw) :c (1.1/ln(Lwlrw)•C/(Lcirw)j" -I 600 8.50 2.33 11.10 I 700 8.70 2.50 11.50 =Calculalion Nt~_E!2P.rialc (Lw not cguallo H) 800 8.90 2.70 11.80 900 9.00 2.75 12.00 I 1000 9.20 2.83 12.40 1500 9.50 3.18 12.90 c erenccs: ouwcr ( ICC ( I ouwcr an . I I FORM 17 LAW ~terr01ne. h~drM lie. gro..dle()t --" 1.0 f-\ I i3f+ ' 0 Ol!oq ft./ ft i.Oft/12H ·0.0833H/ft. I. 0 H I '2.4 H' ' il' 041" f+ I H 10 HI Z.S ft ~ o. 04QQ H /H. A\itrO-ge gro.d1et1t ' O,O(,OS H /ft./ I JOB NO. 56 -4S'B SHEET I OF _____::2:.___ JOB NAME Conoto j$ 35047 BY l{[fNI DATE _,1+"130~1--"%"----- CHECKED BY 6i....L.--DATE I /~1/ "}S Ckknmne. grwnd wo..ftr velou~ : hydrli.Uill condodWit'{ ( dt-ttrm,r.ed dun119 ~reviDU~ ~eld -ieSt1ng ,SPe Cttto.c.h~d P0-9~ b.l x 10 -b fes ./ ) ~ tff"e C.h ve. poru~lfl.j (0-ypi'O'lJ N\O.:ie.t~) : 0 .lo -to 0 >30 ~=-(" 1 x m·ow)(O.Obosf!IH.) (bOsec)(born,"H'2.4hr)(3bSdf!.16) (o. 30) (I rv11r\) ( 1 llr) (I d~) (I~() Y· 4l.~ f+/~r / v = (b l x 10 ·"fed (0_()60£ Rift) (bo sec.)(b0mi")(Z41w-) (3bl;doA(s) (o,to) . (I fnlll)( I hr.) ( 1 cl~) ( \~,..) v ' b~. q . f+ (~( / h c.. Cotlduc.tivlt 53. 3 fl. r I I I I I I I I I I I I :.I I I I I I I !:! ~ ~ ~ :8 \ \ / / \ \ \ \ \ \ ~ 85 ~ (84. 1 6) 0 MW-2 88 ~ REF.: SITEPl.AN BY caroco. SHEET NO.-33047, DAl[l) 1D-29-92. . -? ' - . <a~,\ ~ \ / ,/ / EXPLANATION --· .lg--PROPERTY UNE .z ~-----------; APPROXIMATE LOCATION OF I I !... __________ 1 UNDERGROUND STORAGE TANKS ~~:>:--<<1 AREAS WITH CONCRETE COVER 6 PUMP ISLAND (NUMBER) ----· CEDAR PRIVACY FENCE 0 TYPE II MONITORING WELL 0 TYPE Ill MONITORING WELL • MONITORING WELL INSTALLED BY OTHERS • (85.21) 85------ APPROXIMATE LOCATION OF FREE PRODUCT COLLECTION WELL GENERAUZED GROUND-WATER FLOW DIRECTION GROUND-WATER ELEVATION (FT., 12/16/94) GROUND-WATER CONTOUR (FT., 12/16/94) 0 .APPBOIIII.t.ft SCALI Ill J'DT NOTES: 1) GROUND-WATER MEASUREt.AENTS MADE IN WELLS ON DECEMBER 16, 1994. 1--------------------1 2) DEEP TYPE Ill WELL. MW-5, NOT USED IN CONTOURING. 3) CONTOUR INTERVAL = 1.0 FT. 4) GROUND-WATER ELEVATIONS REFERENCED TO AN ASSUMED SITE DATUM (TOP OF CASING MW-7 = 100.00 FT.) GROUND-WATER CONTOUR MAP CONOCO STORE NO. 33047 1122 NORTH RAlEIGH ST. -ROCKY MOUNT, N.C. PREPARED BY JOB NO. DAlE 56-4533 DAlE RGURE 12