Environmental Consultants 7311 W 130th Street 913 681 -0030 and Contractors Suite 100 FAX 913681 -0012
Overland Park. KS 66213 www.scsengineers.com
SCS ENGINEERS
December 22, 2016 Project No. 272l4218.0 1
":'''J: 03-WD5/ d v;,Tat; {'k?49 -sI-e:l. REC'DSCAN
Mr. Bill Sadler, P.G. ADEQ - Solid Waste Management Division DEC 22 2016 5301 Northshore Drive
DOC /01: ? 0 754 North Little Rock, Arkansas 72118 TO:/.61r;reZYa; 8WMD
Subject: NABORS Landfill Third Quarter 2016 Groundwater Monitoring and Gas Monitoring Reports
Mr. Sadler,
In accordance with Contract Number 4600033394, SCS Engineers is submitting the Third Quarter Groundwater Monitoring Report (GWMR) and Third Quarter Gas Monitoring Report summarizing monitoring activities performed in September 2016 at the NABORS Landfill.
If you have questions or comments regarding these reports, please do not hesitate to contact us at (913) 681-0030.
Sincerely,
Dillon Baird, P.E. Floyd Cotter, P.E. Project Engineer Project Manager SCS ENGINEERS SCS ENGINEERS
Enclosure: Third Quarter 2016 Groundwater Monitoring Report Third Quarter 2016 Gas Monitoring Report Third Quarter 2016 Sanitas Database Flat File
Offices Nationwide o
http:www.scsengineers.com
TH IRD QUARTER 2016 NABORS LANDFI LL
GROUNDWATER MONITORING REPORT
Presented to:
Arkansas Department of Environmental Quality
5301 Northshore Drive North Little Rock, AR 72118-5317
501-682-0744
Presented by: SCS ENGINEERS
11219 Richardson Drive North Little Rock, AR 72113
(501) 812-4551
November 21, 2016 File No. 27214218.01
Offices Nationwide www.scsengineers.com
i
T H I R D Q U A R T E R 2 0 1 6 N A B O R S L A N D F I L L
G R O U N D W A T E R M O N I T O R I N G R E P O R T
Presented to: Arkansas Department of Environmental Quality
5301 Northshore Drive
North Little Rock, AR 72118-5317 501-682-0744
Presented by: SCS ENGINEERS
11219 Richardson Drive North Little Rock, AR 72113
(501) 812-4551
November 21, 2016 File No. 27214218.01
i i
Table of Contents Section Page
1 INTRODUCTION ..................................................................................................................................... 1 1.1 SITE DESCRIPTION ........................................................................................................................... 1 1.2 SITE GROUNDWATER MONITORING SYSTEM ......................................................................... 1
2 GROUNDWATER SAMPLING .............................................................................................................. 2 2.1 WATER LEVEL DETERMINATION ................................................................................................... 2 2.2 WELL EVACUATION........................................................................................................................ 3 2.3 EQUIPMENT DECONTAMINATION PROCEDURES .................................................................... 3 2.4 SAMPLE EXTRACTION .................................................................................................................... 3 2.5 FIELD TESTING .................................................................................................................................. 5 2.6 FIELD QA/QC PROCEDURES......................................................................................................... 5 2.7 HANDLING/TRANSPORT/CUSTODY .......................................................................................... 6 2.8 SAMPLE PRESERVATION ................................................................................................................ 6
3 THIRD QUARTER 2016 ASSESSMENT MONITORING EVENT ....................................................... 7 3.1 GROUNDWATER ELEVATION, FLOW DIRECTION & RATE ..................................................... 7 3.2 STATISTICAL EVALUATION ............................................................................................................ 8
3.2.1 Sen’s Slope/Mann-Kendall ............................................................................................. 9 3.2.2 Results of Assessment Monitoring Statistical Analyses ............................................. 10
3.3 LABORATORY ANALYTICAL RESULTS ....................................................................................... 11 3.4 QUALITY ASSURANCE/QUALITY CONTROL RESULTS .......................................................... 12
4 CONCLUSION ...................................................................................................................................... 19 List of Tables Table 1 Assessment Monitoring Constituents (AMC) Table 2 Third Quarter 2016 Field Measurements Table 3 Groundwater Protection Standards - Regulation 22.1205 (h)(I) Table 4 Inorganic Groundwater Quality Results Table 5 Volatile Organic Groundwater Quality Results Appendices APPENDIX A Figures
• Site Location Map • Site Map and Potentiometric Surface Map
APPENDIX B Groundwater Sampling Records APPENDIX C Laboratory Analytical Results APPENDIX D Statistical Database APPENDIX E Statistical Evaluation
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1 INTRODUCT ION This report summarizes the results of the Third Quarter 2016 Groundwater Assessment Monitoring event at the NABORS Landfill. Field work was conducted by personnel from SCS Engineers (SCS) on September 19-21, 2016. This report was prepared under the provisions of Contract No. 4600033394 between the Arkansas Department of Environmental Quality (ADEQ) and SCS. The NABORS Landfill originally operated under Solid Waste Disposal Permit number 0249-S, as issued to RLH, Inc. (RLH) by the Arkansas Department of Environmental Quality (ADEQ) on June 14, 1988. The solid waste permit was transferred to NABORS on August 31, 2005. The NABORS Landfill is currently under Solid Waste Disposal Permit 0249-S1-R2 issued by the ADEQ on August 10, 2006. Although the permit is considered “open”, the landfill is not receiving waste. The ADEQ is currently managing the closure of the site. The analytical work for this sampling event was conducted by Environmental Science Corporation (ESC) of Nashville, Tennessee and groundwater sampling was conducted by SCS.
1 . 1 S I T E D ES C R I P T I ON
The Northwest Arkansas Regional Solid Waste Management District (District) owns both a Class 1 and Class 4 Landfill at the subject site. The NABORS Landfills (herein referred to as Landfill) are located on approximately 700 acres near Three Brothers (Baxter County), Arkansas. The permitted Class 1 area is located in a portion of the SW1/4 of SE1/4 of Section 26, Township 21 North, Range 14 West, and NW1/4 of NE1/4 of Section 35, Township 21 North, Range 14 West. A general geographic location map is included as FIGURE 1 in APPENDIX A. All report Figures are provided in APPENDIX A.
1 . 2 S I T E GR OU N D WA T ER M ON I T OR I N G S Y S T E M
The Landfill groundwater monitoring system has evolved over time into a system of monitoring points including both monitoring wells and local springs. The current Assessment Monitoring Program was triggered by the statistically significant occurrence of certain parameters documented in the original Detection Monitoring System. In turn, the required contingencies for Nature and Extent characterization and other regulatory provisions were addressed through the development of the site. More specifically, the Second Detection Monitoring System for the site that was intended to comply with the provisions of Reg.22.1202 through Reg.22.1204 was approved by ADEQ in 1998. Following the Second Half 2005 sampling event, the ADEQ was notified under the provisions of 22.1204(c) of a statistically significant increase for volatile organic compounds (VOC) at MW-1. These detections were verified during the Second Half 2006 sampling event and the facility began Assessment Monitoring at wells MW-1, MW-2, MW-3, MW-4, MW-5, MW-6, and MW-7 in June of 2006 as required by Regulation 22.1205. At that time these seven wells were the only permitted facility Detection Monitoring wells. The Assessment Monitoring program was later expanded to include all the wells/springs listed below when the new permit was issued in August of 2006 (0249-S1-R2), and when the Nature and Extent Characterization was completed. Monitoring was conducted under this program through the Third Quarter 2012.
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Assessment Monitoring continued on a quarterly basis as per 22.1205(d) based upon: • The presence of VOCs at MW-1 • Detected concentrations of arsenic at various wells, some of which were above the Groundwater
Protection Standard (GWPS) • Vinyl chloride detections at CAO-1 which historically exceed the GWPS.
The current groundwater monitoring system for the NABORS Landfill consists of twenty-four (24) monitoring wells, thirteen (13) springs, and a Leachate sample for a total of thirty-eight (38) Assessment Monitoring points. These sampling points are listed below and are located on FIGURE 2.
NABORS GROUNDWATER ASSESSMENT MONITORING POINTS
MW-1 NAB-1 MW-577 SP-4 NE-6 MW-2 NAB-2 MW-689D SP-5 MW-1R MW-3 NAB-3 MW-633D SP-7 MW-4 NAB-4 TSP-1 Spring A MW-5 NAB-7 TSP-2 Spring B MW-6 CAO-3 TSP-3 Leachate MW-7 NAB-8 TSP-4 NE-2 CAO-1 MW-509D Entrance Seep NE-3 CAO-2 Class I Draw Class IV Draw Spring near NE-3
Note: NAB-1 is damaged at approximately 68 feet below top of casing and is no longer being sampled.
2 GROUNDWATER SAMPL ING The Third Quarter 2016 Assessment Monitoring sampling event was conducted on September 19-21, 2016. A representative of SCS collected samples from twenty-three (23) monitoring wells (MW-1 through MW-7, MW-1R, MW-509D, MW-577, MW-633D, MW-689D, CAO-1, CAO-2, CAO-3, NAB-2, NAB-3, NAB-4, NAB-7, NAB-8, NE-2, NE-3 and NE-6) and five (5) springs (Spring A, Class I Draw Spring, Class IV Draw Spring, SP-7, and the Landfill Entrance Seep). All additional springs were dry, or had been covered by landfill construction and no longer exist. The current Groundwater Sampling and Analysis Plan dated December 2011 (ADEQ document #61474) was utilize for this sampling event. The procedures for obtaining groundwater samples, parameters analyzed, sample preservation and handling are discussed in the following sections.
2 . 1 WA T ER L E V E L D E T ER M I NA T I ON
Prior to evacuating each well for sampling, the depth to water was measured using an electronic water level probe. The measurements were taken to the nearest 0.01-foot from the top of the well casing and the information was used to calculate the volume of water in the well. Because non-dedicated equipment was used to obtain water levels, procedures were instituted to insure the samples were not contaminated. The electronic water level probe is constructed of inert materials and was de-contaminated with distilled water prior to use at each well.
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2 . 2 WE L L EV A C U A T I ON
The water in a well prior to sampling may not be representative of in-situ groundwater quality. Therefore, the groundwater technician used an electric submersible pump with dedicated sampling tubing to purge a minimum of three casing volumes at a rate that did not excessively agitate the recharge water. Since non-dedicated equipment was used to purge the wells, procedures were utilized to insure the samples were not contaminated. Clean, non-powdered, nitrile gloves were worn by the sampling personnel. Measures were taken to prevent surface soils from coming in contact with the purging equipment and lines, which could introduce contaminants to the well.
2 . 3 E QU I P ME N T D EC ON TA M I N A T I ON P R OC ED U R ES
All equipment that was used in the monitoring wells and had contact with the samples was thoroughly cleaned before use. These devices included a water level probe and a submersible pump. The water level probe was washed with potable water and phosphate-free laboratory detergent. Next, the probe was rinsed with potable water and finally, rinsed with distilled water. The water level probe was then placed in a plastic bag to reduce contact with air and transported into the field. After a water level was measured at each well, a paper towel was soaked with distilled water and as the probe was reeled up the tape and probe were wiped clean. The submersible pump was initially flushed with potable water and phosphate-free detergent. Next, the pump was rinsed with potable water, and finally rinsed and flushed with distilled water in a portable decontamination tub prior to use in each well. The pump was transported in a clean, sealed tub to minimize contact with the air prior to use at each well.
2 . 4 S A MP LE EX TR A C T I ON
The technique used to withdraw each groundwater sample from the wells was selected based on consideration of the parameters analyzed in the sample. To insure the groundwater sample is representative of the formation, it is important to minimize physically altering or chemically contaminating the sample during the withdrawal process. In order to minimize the possibility of sample contamination the groundwater technicians did the following:
• Made sure clean sampling equipment was not placed directly on the ground or other contaminated surfaces prior to insertion into the well.
• Gently lowered and retrieved sampling equipment in order to prevent undue disturbance of the
water column. Monitoring wells were purged and samples were collected using a submersible pump. Wells that went dry during purging were allowed to recharge for approximately 24 hours and samples were collected using a disposable bailer.
• Transferred samples to the appropriate containers in a manner that minimized agitation and
aeration.
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Samples were collected and containerized in the order of volatilization sensitivity of the parameters. Spring samples are collected where able, by utilizing a grab sample method by holding the sample bottle within the spring water flow path. The list of parameters analyzed is presented in TABLE 1.
TABLE 1. ASSESSMENT MONITORING CONSTITUENTS (AMC) APPENDIX 1 VOLATILES INDICATOR PARAMETERS INORGANICS
ACETONE CHLORIDE ANTIMONY ACRYLONITRILE pH ARSENIC
BENZENE SULFATE BARIUM BROMOCHLOROMETHANE TDS BERYLLIUM
BROMODICHLOROMETHANE TOC CADMIUM CHROMIUM SPECIFIC CONDUCTANCE CHROMIUM
CARBON TETRACHLORIDE COBALT CARBON DISULFIDE COPPER CHLOROBENZENE LEAD CHLOROETHANE NICKEL CHLOROFORM SELENIUM
DIBROMOCHLOROMETHANE SILVER 1,2, DICHLOROBENZENE THALLIUM 1,4, DICHLOROBENZENE VANADIUM
TRANS- 1,4-DICHLORO-2-BUTENE ZINC 1,1 DICHLOROETHANE IRON 1,2 DICHLOROETHANE MANGANESE
CIS-1,2,-DICHLOROETHYLENE TIN TRANS-1,2-DICHLOROETHYLENE
1,2-DICHLOROPROPANE CIS-1,3-DICHLOROPROPENE
TRANS-1,3-DICHLOROPROPENE ETHYLBENZENE 2-HEXANONE
METHYL BROMIDE METHYL CHLORIDE
METHYLENE BROMIDE METHYLENE CHLORIDE METHYL ETHYL KETONE
METHYL IODIDE 4- METHYL-2-PENTANONE
STYRENE 1,1,1,2-TETRACHLOROETHANE 1,1,2,2,-TETRACHLOROETHANE
TETRACHLOROETHANE TOLUENE
1,1,1-TRICHLOROETHANE 1,1,2-TRICHLOROETHANE
TRICHLOROETHYLENE TRICHLOROFLUOROMETHANE 1,2,3-TRICHLOROPROPANE
VINYL ACETATE VINYL CHLORIDE
XYLENE
The collection order for the common groundwater parameters was as follows:
• Volatile Organic Compounds (VOCs) • Total Organic Carbon (TOC) • Sulfate, Chloride, and Total Dissolved Solids (TDS) • Total Metals
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2 . 5 F I E LD T ES T I N G
Some of the parameters evaluated are physically or chemically unstable and were measured immediately after collection by the SCS representative using a flow cell. Examples of unstable elements or properties include pH and temperature. Although the turbidity and specific conductance (inverse of electrical resistance) of a substance are relatively stable, these parameters were also measured in the field. This information was recorded on Groundwater Monitoring Sampling Records presented in APPENDIX B. A summary of the field measurements for the Third Quarter 2016 Assessment Monitoring sampling event is presented in TABLE 2.
TABLE 2. THIRD QUARTER 2016 FIELD MEASUREMENTS
Well # Date Time TOC Elev.
(fmsl) GW Depth
(ft.) GW Elev.
(fmsl) pH (SU)
Temp. (oC)
Spec. Cond.
(uS/cm) Turbidity
(NTU) MW-1 9/20/2016 1607 1067.26 67.56 999.71 6.72 16.9 1374 10.90
MW-1R 9/20/2016 1629 1067.57 69.62 997.95 6.78 17.1 1304 14.20
MW-2 9/20/2016 1349 1001.21 35.09 966.12 7.95 16.5 520 1.79
MW-3 9/20/2016 1149 994.48 26.74 967.74 6.96 16.9 725 3.26
MW-4 9/20/2016 1256 1012.11 86.64 925.47 8.07 15.9 543 9.20
MW-5 9/20/2016 1324 1004.38 77.65 926.73 7.52 15.1 596 9.71
MW-6 9/20/2016 1422 1000.38 56.51 943.87 7.51 14.3 614 3.89
MW-7 9/20/2016 1448 999.66 8.65 991.01 7.59 17.8 485 4.01
CAO-1 9/20/2016 1853 1026.40 26.51 999.89 6.87 16.2 1205 8.68
CAO-2 9/20/2016 1133 998.80 28.64 970.16 7.07 16.6 595 9.80
CAO-3 9/20/2016 1116 984.20 10.67 973.53 7.79 19.8 428 3.77
NAB-2 9/20/2016 1826 993.98 78.18 915.80 7.31 16.8 612 10.30
NAB-3 9/20/2016 0805 921.49 25.55 895.94 7.37 15.3 565 29.90
NAB-4 9/20/2016 1007 1004.20 108.35 895.85 7.29 16.5 635 5.86
NAB-7 9/20/2016 1544 1012.36 23.16 989.20 7.43 15.9 519 15.10
*NAB-8 9/20/2016 0630 1039.21 77.00 962.21 7.42 17.2 511 17.20
MW-509D 9/20/2016 1800 1014.20 23.38 990.82 7.13 16.5 527 43.70
MW-577 9/20/2016 0834 982.60 42.33 940.27 7.57 15.9 559 7.61
MW-633D 9/20/2016 1052 1050.10 63.56 986.54 7.55 17.6 600 3.56
MW-689D 9/20/2016 0925 966.20 25.96 940.24 7.66 16.55 560 18.10
NE-2 9/19/2016 1240 976.98 53.90 923.08 5.96 18.2 1683 32.10
*NE-3 9/20/2016 0650 846.91 7.61 839.30 7.80 20.1 479 26.80
NE-6 9/20/2016 1212 901.42 9.08 892.34 7.69 18.1 497 1.13
*Note: NAB-8 and NE-3 went dry during purging (at approx. 2 and 5 gallons, respectively)
2 . 6 F I E LD QA / QC P R OC ED U R ES
For QA/QC purposes, a duplicate sample of MW-6 was collected and labeled Dupe. Procedures utilized for collecting the duplicate sample were identical to the sampling protocol detailed in Section 2.4 and collected at the same time as the MW-6 samples. The duplicate sample was collected to verify the consistency and precision of the sampling and testing procedures.
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A field blank was also collected and labeled FB. The field blank consisted of distilled water poured into a sample container under field conditions and returned for laboratory analysis. The SCS field representative prepared the field blank for all the required monitoring parameters. The field blank was used to verify that the sample collection and handling process or ambient conditions, such as airborne materials or other factors unique to the sampling area did not affect the quality of the samples. A volatile organic analyte (VOA) trip blank was also included as part of the field QA/QC procedures. The trip blank was prepared in the laboratory utilizing de-ionized water, transported to the site, handled as a sample (yet never opened in the field), and returned to the laboratory for analysis. Trip blank results are used to verify that the sample containers were adequately prepared/handled in the laboratory, and that the groundwater samples were protected from contamination during transport. An equipment blank, labeled EB, was prepared on site by pouring de-ionized water over the water level probe, gloves, and through a disposable bailer. Equipment blank results are used to verify that proper protocols for collection of samples and decontamination of equipment were followed.
2 . 7 H A ND L I N G/ T R A NS P OR T/ C U S TO D Y
Samples were accompanied by a Chain-of-Custody record that includes the name of the facility, collector's signature, monitoring point identification number, date, time, type of sample, number of containers, and analyses required. Samples collected from the Landfill site were placed in sample containers provided by the Laboratory. Containers were certified clean by the supplier and transported with ice to preserve samples. Attached to the sample container at the time of collection is the sample label. The following information is recorded on the sample label:
• Project or facility name • Sample type • Sample location number (well number) • Preservation type • Sampling date and time • Sample collector’s name or initials
Documentation for the sample collection process and other important information was recorded on the chain of custody. The standard format includes the date, time, type of sample, code for sample analysis, unique sample number, and sampling location. The entries were signed by the sample collector.
2 . 8 S A MP LE P R ES ER V A T I ON
In accordance with the facility’s Sampling and Analysis Plan, the samples were placed in an ice chest for preservation and cooled to approximately 4 degrees Celsius. Custody was retained by a SCS representative from the time of collection until shipment via Federal Express to Environmental Science Corp. (ESC) in Nashville, Tennessee. Laboratory analytical results and a copy of the ESC Chain-of-Custody form are included in APPENDIX C.
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3 TH IRD QUARTER 2016 ASSESSMENT MONITOR ING EVENT
The sampling results summarized in this report are for the Third Quarter 2016 Assessment Monitoring Event. The results for this event, conducted on September 19-21, 2016 are provided in the following sections, tables, and appendices. In addition, all historical groundwater data was evaluated statistically to determine if significant differences exist between compliance and background concentrations at each monitoring point.
3 . 1 GR O U ND WA T ER E L EV A T I ON , F L OW D I R EC T I ON & R A T E
There are currently twenty-three monitoring wells located around the Landfill area. Water level elevations were measured for monitoring wells MW-1R, MW-1, MW-2, MW-3, MW-4, MW-5, MW-6, MW-7, CAO-1, CAO-2, CAO-3, NAB-2, NAB-3, NAB-4, NAB-7, NAB-8, NE-2, NE-3, NE-6, MW-509D, MW-577, MW-689 and MW-633D during the Third Quarter 2016 event. TABLE 2 summarizes the results of the water level and field measurements for this event. The highest water level elevation during this event was measured in monitoring well CAO-1, located east of Area 1-2, and the lowest elevation occurred in monitoring well NE-3, located southeast of Area 1-3. A potentiometric surface map was constructed utilizing the water levels measured during the Third Quarter 2016 Assessment Monitoring Event and is presented as FIGURE 2. As FIGURE 2 indicates, groundwater within the uppermost aquifer was found to flow to the west/northwest in Area 1-2 and generally to the east-southeast in Area 1-3. Based on this flow pattern, monitoring wells MW-1, MW-1R, MW-7, and NAB-7 are upgradient wells, and wells MW-2, MW-3, MW-4, MW-5, MW-6, NAB-2, NAB-3, NAB-4, NAB-8, MW-509D, MW-633D, MW-577, MW-689, CAO-1, CAO-2, and CAO-3 monitor the groundwater downgradient of the landfill. Based on the principles of Darcian flow, the average linear velocity (groundwater flow rate) during the Third Quarter 2016 Assessment Monitoring event was calculated utilizing the following equation:
Vx= (K*i) / ne w h e r e ,
Vx is the average linear velocity (length/time), K is the hydraulic conductivity (length/time), i is the hydraulic gradient (length/length), and ne is the effective porosity (decimal).
The hydraulic gradient in the Area 1-2 portion of the Landfill was calculated by comparing upgradient well, MW-1R, to the most directly downgradient well, MW-5. The change in head of 71.22 feet between the two wells over a distance of approximately 1,432 feet produces a hydraulic gradient of 0.05 (ft/ft). The hydraulic gradient in the Area 1-3 portion of the Landfill was calculated by comparing upgradient well, MW-1R, to the most directly downgradient well, NAB-2. The change in head of 82.15 feet between the two wells over a distance of approximately 693 feet produces a hydraulic gradient of 0.119 (ft/ft).
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Grubbs, Garner, & Hoskyn, Inc. reported an average hydraulic conductivity of 1.0x10-3 cm/sec in the site’s Hydrogeologic and Geotechnical Report (1987). This hydraulic conductivity for the uppermost aquifer was used to aid in the flow rate calculations. SCS utilized an estimated porosity for this report of 10 percent for dolomite bedrock (Freeze and Cherry, 1979). An effective porosity was then determined by multiplying the porosity by 0.90 (90 percent). Effective porosity is always equal to or less than the porosity and utilizing 90 percent is a conservative approach since part of the total porosity is occupied by static fluid held to the mineral surface by surface tension. The effective porosity determined was nine percent. Area 1-2: Vx = [(1.0x10-3 cm/sec)(0.05]/(0.09) = 5.53x10-4 cm/sec or 1.567 ft/day Area 1-3: Vx = [(1.0x10-3 cm/sec)(0.119)]/(0.09) = 1.32x10-3 cm/sec or 3.734 ft/day
3 . 2 S TA T I S T I C A L E V A L U A T I O N
The historical statistical database (provided on CD in APPENDIX D) was first reviewed for anomalies or outliers using the statistical program SANITASTM for Groundwater. There were statistical outliers calculated for arsenic at MW-1, chromium at NAB-2 and NAB-3, nickel at NAB-2, and zinc at NE-6 during the Third Quarter 2016 event. In addition to outlier analysis, parameter concentrations were plotted versus time for each of the parameters. These graphs are included in APPENDIX E. Graphs provide a summary of the historical data that are more easily visualized on graphs than tables. Another important application of these graphs is for detecting possible trends or drifts in the data from a given well. Furthermore, when visually comparing the plots of all the wells for a parameter, it is easy to identify the variability among the wells. This variability may be spatial or due to contamination from an off-site source. An important consideration in any graphical presentation is whether the data is significantly influenced by seasonal changes. If this is the case, then the data should be adjusted for seasonal influences. In order to make such a determination, there should exist at least eight and preferably sixteen observations for each parameter. However, seasonal influences will likely be first suspected from visual observation of the data graphs discussed above. Based on the data generated thus far and as stated in previous reports, it is suspected that concentration levels are significantly influenced by the amount of precipitation and the timing of individual precipitation events in relation to sampling events. The methods used to evaluate the groundwater data for statistically significant increases (SSIs) are based on statistical procedures outlined in the Statistical Analysis of Ground-Water Monitoring Data at RCRA Facilities (Unified Guidance, March 2009) and ASTM D6312-98 Standard Guide for Developing Appropriate Statistical Approaches for Groundwater Detection Monitoring Programs. The SANITASTM for Groundwater program was utilized to statistically evaluate the data for the Third Quarter 2016 sampling event. A brief description of the procedures used in the statistical evaluation is provided on each statistical plot (See APPENDIX E).
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3 . 2 . 1 S e n ’ s S l o p e / M a n n - K e n d a l l
When used in conjunction with one another, the Mann-Kendall test for temporal trend and the Sen’s slope estimate are two types of Evaluation Monitoring Statistics useful in determining the significance of an apparent trend and to estimate the magnitude of that trend. The Sen’s Slope/Mann-Kendall was performed on all detected constituents from each well to determine whether a statistical trend is present in the data. The results of the Sen’s Slope/Mann-Kendall plots associated with the Third Quarter 2016 sampling event are presented in APPENDIX E. A number of constituents presented a false trend due to a change in reporting limits. Only constituents with true statistical trends in detected concentrations are presented below:
Well
Significant Decreasing Trends
Significant Increasing Trends
CAO-1 1,1-dichloroethane, cobalt, manganese,
nickel, zinc arsenic, barium, benzene, chloride, iron, TOC
CAO-2 zinc chloride
CAO-3 sulfate chloride
MW-1 1,1-dichloroethane, barium, chloride, cis-1,2-Dichloroethene,
TDS, iron, nickel, sulfate, TOC, vinyl chloride, zinc MW-1R manganese cis-1,2-Dichloroethene
MW-2 barium
MW-3 chloride, sulfate barium, TDS, iron, nickel, zinc
MW-4 chloride, TDS, sulfate, zinc
MW-5 chloride, TDS, sulfate
MW-6 chloride, TDS, sulfate
MW-7 barium, chloride
MW-509D chloride, sulfate MW-577 barium, sulfate chloride
MW-633D 1,1-dichloroethane, chloride, TDS, sulfate NAB-2 barium, chloride, sulfate, zinc NAB-3 barium, chloride, TDS, iron, sulfate NAB-4 arsenic barium, TDS, zinc NAB-7 barium, chloride, iron, nickel, sulfate, zinc NAB-8 barium, sulfate NE-2 chloride, TDS, sulfate, TOC NE-3 sulfate
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3 . 2 . 2 R e s u l t s o f A s s e s s m e n t M o n i t o r i n g S t a t i s t i c a l A n a l y s e s
Confidence intervals are the recommended statistical strategy for assessment monitoring. The Groundwater
Protection Standards (GWPS) utilized in the statistical evaluation are included in TABLE 3.
TABLE 3. Groundwater Protection Standards (Regulation 22.1205 (h)(I))
Compound MCL** RBSL*** Compound MCL** RBSL*** Total Arsenic 0.01 mg/l Chloroethane (Ethyl Chloride) -- 21,000 ug/l
Total Barium 2 mg/l Vinyl Chloride 2 ug/l
Total Cadmium 0.005 mg/l 1,1-Dichloroethane -- 2.7 ug/l
Total Cobalt -- 0.011 mg/l cis-1,2-Dichloroethene (-ethylene) 70 ug/l --
Total Chromium 0.1 mg/l -- Tetrachloroethene (-ethylene) 5 ug/l
Total Nickel -- 0.039 mg/l 1,4-dichlorobenzene 75 ug/l
Total Zinc -- 6 mg/l Methylene Chloride 5 ug/l
Total Selenium 0.05 mg/l Toluene 1,000 ug/l
Tin -- 12mg/l Trans 1,2-dichloroethylene 100 ug/l
Silver -- 0.094 mg/l Xylene (Total) 10,000 ug/l
Thallium 0.002 mg/l Ethyl Benzene 700 ug/l
Vanadium -- 0.086 mg/l Carbon Disulfide -- 810 ug/l
Antimony 0.006 mg/l Chlorobenzene 100 ug/l
Beryllium 0.004 mg/l Cyanide 200 ug/l
Copper 1.3 mg/l Mercury 200 ug/l
Lead 0.015 mg/l Trichloroethene (-ethylene) 5 ug/l
Benzene 5 ug/l
Available MCL’s will be used as the Groundwater Protection Standard **MCL = Maximum Contaminant Levels (current or proposed) ***RBSL = Risk-Based Screen Levels (EPA Region 6 Human Health Medium Specific Screening Level)
Residential Water (Residential Scenario: Ingestion and Inhalation)
Data evaluation consisted of the establishment of 95% Lower Confidence Limits (LCL), assuming that a minimum of four (4) background samples exist for each parameter and well detected during the Assessment Monitoring Program. If inadequate background data exists, sufficient background data will be collected to provide adequate sample size for statistical analysis. If the 95% LCL of one parameter exceeds action levels defined as Maximum Contaminant Levels (MCLs), if applicable, or a health-based alternate Groundwater Protection Standards (GWPS) as stipulated in Section 22.1205(d)(4), the site will conduct an Assessment of Corrective Measures in coordination with ADEQ. Because the entire monitoring system is currently in the Assessment Monitoring Program, each detected volatile organic compound and metal parameter at each well or spring was evaluated utilizing events from 2011 to present. This number of events was selected based on the interpretation that data population has been generally stable at each monitoring point over this time period. Data prior to these events varied substantially in some cases from the utilized data set. The statistical evaluation was conducted in
N A B O R S C l a s s 1 L a n d f i l l P e r m i t N o . 0 2 4 9 - S 1 - R 2 ; A F I N : 0 3 - 0 0 0 5 1
1 1
accordance with recommended procedures found in the Unified Guidance. Confidence Interval statistical analysis was not performed for indicator parameters. The results of the assessment monitoring statistical evaluations indicated the concentrations of the following parameters at the following wells, statistically exceeded the established Groundwater Protection Standards.
THIRD QUARTER 2016 GWPS EXCEEDANCES MONITORING POINT AMC
CAO-1 1,1-dichloroethane, cobalt, nickel, vinyl chloride
MW-1 arsenic
MW-1R 1,1-dichloroethane, cobalt, nickel, vinyl chloride
NAB-2 arsenic The results of the Third Quarter 2016 Sampling Event indicate that AMC concentrations statistically exceed the GWPS at sample points CAO-1, MW-1, MW-1R, and NAB-2. The results of the confidence interval evaluation associated with the Third Quarter 2016 sampling event are presented in APPENDIX E. In accordance with Regulation 12.1205(d)(4), an Assessment of Corrective Measures Report (June 2015, Document 67822) was submitted to ADEQ for approval.
3 . 3 LA B OR A T OR Y A NA LY T I C A L R E S U L TS
The analytical laboratory results for the Third Quarter 2016 Assessment Monitoring sampling event are summarized in TABLE 4 and TABLE 5. The Tables present a comparison of parameter concentrations from the current sampling event to the applicable Primary Drinking Water Standards-Maximum Contaminant Levels (MCLs) and Secondary Drinking Water Standards (SDWS). The SDWS are set primarily for aesthetic reasons and are generally not considered health-based criteria. Constituents covered by the SDWS are those which may adversely affect the aesthetic qualities of drinking water such as taste, odor, color, and appearance and are not federally enforced.
Primary Drinking Water Standard MCL exceedances noted for well samples consisted of mercury at MW-633D; arsenic at MW-1, MW-1R, CAO-1, and NAB-2; cadmium at MW-509D; 1,1-dichloroethane at MW-1 and MW-1R; and vinyl chloride at MW-1, MW-1R, and CAO-1 (see TABLE 4 and TABLE 5) during the Third Quarter 2016 Assessment Monitoring event.
As shown in TABLE 5, Appendix 1 volatile organic compound (VOC) detections in well samples above the PQL consisted of the following:
• MW-1 – chlorobenzene, 1,1-dichloroethane, trichloroethene, and vinyl chloride • MW-1R – 1,4-dichlorobenzene, 1,1-dichloroethane, cis-1,2-dichloroethene, trichloroethene, and
vinyl chloride
• CAO-1 – benzene, chlorobenzene, 1,1-dichloroethane, and vinyl chloride • MW-633D - 1,1-dichloroethane
Because VOCs are not naturally occurring, detected concentrations above the PQL are considered SSIs.
N A B O R S C l a s s 1 L a n d f i l l P e r m i t N o . 0 2 4 9 - S 1 - R 2 ; A F I N : 0 3 - 0 0 0 5 1
1 2
3 . 4 QU A L I TY A S S U R A NC E/ QU A L I TY C ON TR OL R E S U L TS
A QA/QC comparison for the Third Quarter 2016 Assessment Monitoring event is presented in TABLES 4 and 5. The duplicate sample reported “J” value detections for chromium, copper, lead, nickel, and tin that were reported as non-detect in the representative sample. The field and equipment blank and trip blank had no VOC detections, during the Third Quarter 2016 Assessment Monitoring event
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1 3
TABLE 4. INORGANIC GROUNDWATER QUALITY RESULTS
*Primary Drinking Water Standard-Maximum Contaminant Level (MCL) **Secondary Drinking Water Standard (SDWS) “J” Value= estimated concentration above the MDL but below the PQL Values in bold exceed applicable Primary Drinking Water EPA Standards. Values with a “B” suffix denotes the same analyte is found in the associated blank.
WELL ID pH
(SU) TDS
(mg/L) Sulfide (mg/L)
Cyanide (mg/L)
Cl (mg/L)
SO4 (mg/L)
TOC (mg/L)
Hg (mg/L)
MW-1 6.72 1020
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1 4
TABLE 4 (CONT’D). INORGANIC GROUNDWATER QUALITY RESULTS
WELL ID Sb
(mg/L) As
(mg/L) Ba
(mg/L) Be
(mg/L) Cd
(mg/L) Cr
(mg/L) Cu
(mg/L) Co
(mg/L) MW-1
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1 5
TABLE 4 (CONT’D). INORGANIC GROUNDWATER QUALITY RESULTS
WELL ID Fe
(mg/L) Pb
(mg/L) Mn
(mg/L) Ni
(mg/L) Se
(mg/L) Ag
(mg/L) Tl
(mg/L) Sn
(mg/L) V
(mg/L) Zn
(mg/L)
MW-1 6.3 0.00393 0.73 0.0636
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TABLE 4 (CONT’D). INORGANIC GROUNDWATER QUALITY RESULTS
WELL ID Fe
(mg/L) Pb
(mg/L) Mn
(mg/L) Ni
(mg/L) Se
(mg/L) Ag
(mg/L) Tl
(mg/L) Sn
(mg/L) V
(mg/L) Zn
(mg/L) NE-2 1.67 0.000546 J 0.0656 0.00944
N A B O R S C l a s s 1 L a n d f i l l P e r m i t N o . 0 2 4 9 - S 1 - R 2 ; A F I N : 0 3 - 0 0 0 5 1
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TABLE 5. VOLATILE ORGANIC GROUNDWATER QUALITY RESULTS
WELL ID Acetone (ug/L)
Benzene (ug/L)
CS2 (ug/L)
ChlBenz (ug/L)
ClEthane
(ug/L)
1,4-DCB (ug/L)
1,1-DCE (ug/L)
1,2-DCA
(ug/L)
CisDCEE (ug/L)
TranDCEE
(ug/L)
1,2 DCP (ug/L)
EthylBenz
(ug/L)
TCE (ug/L)
VC (ug/L)
Xylene (ug/L)
MW-1
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TABLE 5 (CONT’D). VOLATILE ORGANIC GROUNDWATER QUALITY RESULTS
WELL ID Acetone (ug/L)
Benzene (ug/L)
CS2 (ug/L)
ChlBenz (ug/L)
ClEthane (ug/L)
1,4-DCB (ug/L)
1,1-DCE (ug/L)
1,2-DCE (ug/L)
Ethylbenzene (ug/L)
CisDCEE (ug/L)
TranDCEE (ug/L)
1,2 DCP
(ug/L)
EthylBenz (ug/L)
TCE (ug/L)
VC (ug/L)
Xylene (ug/L)
NE-3
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1 9
4 CONCLUS ION Based on the results of the Third Quarter 2016 Assessment Monitoring and analytical testing, SCS reached the following conclusions: Groundwater Flow:
• FIGURE 2 represents a potentiometric surface map constructed from water levels measured during the Third Quarter 2016 Assessment Monitoring event. As indicated, groundwater within the uppermost aquifer was found to flow in a west-northwesterly direction in the Area 1-2 portion of the site. This flow relationship is consistent with the flow direction indicated by historical water level measurements. The groundwater flow direction in the Area 1-3 portion of the site is to the east-southeast. The average linear velocity in Area 1-2 is estimated at 5.53x10-4 cm/sec or 1.57 ft/day. The average linear velocity in Area 1-3 is estimated at 1.32x10-3 cm/sec or 3.73 ft/day.
Analytical Results:
• A QA/QC comparison for the Third Quarter 2016 Assessment Monitoring event is presented in TABLES 4 and 5. The duplicate sample reported “J” value detections for chromium, copper, lead, nickel, and tin that were reported as non-detect in the representative sample. The field and equipment blank and trip blank had no VOC detections, during the Third Quarter 2016 Assessment Monitoring event
• Primary Drinking Water Standard MCL exceedances noted for well samples consisted of mercury at MW-633D; arsenic at MW-1, MW-1R, CAO-1, and NAB-2; cadmium at MW-509D; 1,1-dichloroethane at MW-1 and MW-1R; and vinyl chloride at MW-1, MW-1R, and CAO-1 (see TABLE 4 and TABLE 5) during the Third Quarter 2016 Assessment Monitoring event.
• As shown in TABLE 5, Appendix 1 volatile organic compound (VOC) detections in well samples above the PQL consisted of the following:
o MW-1 – chlorobenzene, 1,1-dichloroethane, trichloroethene, and vinyl chloride o MW-1R – 1,4-dichlorobenzene, 1,1-dichloroethane, cis-1,2-dichloroethene, trichloroethene,
and vinyl chloride o CAO-1 – benzene, chlorobenzene, 1,1-dichloroethane, and vinyl chloride o MW-633D - 1,1-dichloroethane
N A B O R S C l a s s 1 L a n d f i l l P e r m i t N o . 0 2 4 9 - S 1 - R 2 ; A F I N : 0 3 - 0 0 0 5 1
2 0
Statistical Evaluation:
• The results of the assessment monitoring statistical evaluations indicated the concentrations of the following parameters at the following wells, statistically exceeded the established groundwater protection standards (TABLE 3).
MONITORING POINT AMC
CAO-1 1,1-dichloroethane, cobalt, nickel, vinyl chloride
MW-1 arsenic
MW-1R 1,1-dichloroethane, cobalt, nickel, vinyl chloride
NAB-2 arsenic
• The results of the Third Quarter 2016 Sampling Event indicate that AMC concentrations statistically exceed the GWPS at sample points CAO-1, MW-1, MW-1R, and NAB-2.
• In accordance with Regulation 12.1205(d)(4), an Assessment of Corrective Measures Report
(June 2015, Document 67822) was submitted to ADEQ for approval. • The next quarterly sampling event is scheduled for December 2016.
APPENDIX A FIGURES
NABORS LANDFILL
SCS ENGINEERS
NOTES:
1. BACKGROUND IMAGERY IS THE MIDWAY
QUADRANGLE ARKANSAS-MISSOURI
7.5-MINUTE SERIES TOPO MAP RETRIEVED
FROM WWW.USGS.GOV ON APRIL 27, 2016.
2. LANDFILL BOUNDARY IS APPROXIMATE.
11219 Richardson DriveNorth Little Rock, Arkansas 72113
PH: (501) 503-4781
FIGURE 1 - SITE LOCATION MAPNABORS LANDFILL
BAXTER COUNTY, ARKANSAS
AutoCAD SHX TextDMB
AutoCAD SHX TextCHK. BY:
AutoCAD SHX TextKV
AutoCAD SHX TextDWN. BY:
AutoCAD SHX TextDMB
AutoCAD SHX TextDSN. BY:
AutoCAD SHX Text--
AutoCAD SHX TextPROJ. NO.
AutoCAD SHX TextCADD FILE:
AutoCAD SHX Text4/27/16
AutoCAD SHX TextPROJ. MGR:
AutoCAD SHX TextDATE:
AutoCAD SHX TextSITE LOCATION MAP.DWG
AutoCAD SHX TextDM
AutoCAD SHX TextFEET
AutoCAD SHX TextSCALE
AutoCAD SHX Text0
AutoCAD SHX Text3000
AutoCAD SHX Text3000
AutoCAD SHX Text6000
AREA 1-2
CLASS 4
AREA 1-3
900920
960
920
920
860
LEGEND:EXISTING 5' MINOR CONTOUR
EXISTING 25' MAJOR CONTOUR
EXISTING ROAD
EXISTING OVERHEAD ELECTRIC
DISPOSAL BOUNDARY (APPROXIMATE)
EXISTING BODY OF WATER
20' GROUNDWATER CONTOUR
EXISTING GROUNDWATER WELL
EXISTING GAS PROBE
NOTES:
1. EXISTING TOPOGRAPHY BASED ON AERIAL SURVEYPERFORMED BY M.J. HARDEN ASSOCIATES, INC ONAUGUST 17, 2010. UPDATES TO THE TOPOGRAPHYAND SITE FEATURES FOR AREA 1-2, AREA 1-3, ANDCLASS 4 DISPOSAL UNITS SURVEYED BYCONSOLIDATED LAND SERVICES, INC BETWEENDECEMBER 2014 AND JANUARY 2015.
2. GROUNDWATER ELEVATIONS TAKEN ON 9/19/16 -9/21/16.
FIGURE 2 - POTENTIOMETRIC MAP3nd QUARTER 2016 GROUNDWATER MONITORING
NABORS LANDFILLBAXTER COUNTY, ARKANSAS
APPENDIX B GROUNDWATER SAMPLING RECORDS
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/19/2016 Well No. MW-1R
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? no lock
Well Depth 78.55 DTW (from TOC) 69.62 Volume H2O in well 1.4
Other Information
Cloudy, 80°
5 mph wind
sub-pump
started purge @ 1614
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1620 1.5 6.90 16.8 0.92 63.5 1306 744
1625 3.0 6.86 17.3 2.11 50.6 1289 184
1629 4.5 6.78 17.1 1.97 41.3 1304 14.2
Sampling Date & Time 9/20/2016 @ 1629
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. MW-1
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 77.20 DTW (from TOC) 67.56 Volume H2O in well 1.5
Other Information
Cloudy, 80°
5 mph wind
sub-pump
started purge @ 1553
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1559 1.5 6.81 17.0 6.48 93.6 1395 39.6
1602 3.0 6.73 17.0 3.47 88.1 1395 12.0
1607 4.5 6.72 16.9 3.01 86.9 1374 10.9
Sampling Date & Time 9/20/2016 @ 1607
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. MW-2
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 49.10” DTW (from TOC) 35.09 Volume H2O in well 2.2
Other Information
Sunny, 90°
5 mph wind
sub-pump
started purge @ 1338
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1343 2.5 8.54 16.5 2.21 75.8 495 20.1
1346 5.0 8.23 16.4 1.22 60.7 514 10.7
1349 7.5 7.95 16.5 0.42 62.3 520 1.79
Sampling Date & Time 9/20/2016 @ 1349
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. MW-3
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 39.60” DTW (from TOC) 26.74 Volume H2O in well 1.2
Other Information
Sunny, 90°
5 mph wind
sub pump
start purging @ 1140
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1145 1.5 7.15 17.2 1.18 31.4 749 4.80
1147 3.0 7.03 17.0 0.80 31.7 748 3.82
1149 4.5 6.96 16.9 0.81 34.0 725 3.26
Sampling Date & Time 9/20/2016 @ 1149
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. MW-4
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 100.60 DTW (from TOC) 86.64 Volume H2O in well 2.2
Other Information
Sunny 90°
5 mph wind
sub-pump
start purging @ 1240
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1246 2.0 9.51 16.0 5.11 58.8 549 110
1249 4.0 9.20 15.8 4.85 50.1 546 110
1252 6.0 8.28 15.9 4.78 49.1 539 43.0
1256 8.0 8.07 15.9 4.68 49.6 543 9.20
Sampling Date & Time 9/20/2016 @ 1256
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. MW-5
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 89.75” DTW (from TOC) 77.65 Volume H2O in well 2.0
Other Information
Sunny 95°
5 mph wind
sub-pump
start purging @ 1306
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1310 2.0 8.20 15.2 4.66 58.0 593 60.8
1313 4.0 7.97 15.1 4.47 50.5 597 70.9
1316 6.0 7.77 15.1 4.32 44.5 595 29.3
1318 8.0 7.66 15.1 4.27 43.7 59 63.7
1320 10.0 7.59 15.0 4.28 42.3 594 86.9
1322 12.0 7.58 15.1 4.29 41.6 595 33.4
1324 14.0 7.52 15.1 4.33 41.0 596 9.71
Sampling Date & Time 9/20/2016 @ 1324
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. MW-6
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 68.90 DTW (from TOC) 56.51 Volume H2O in well 2.0
Other Information
Sunny, 90°
5 mph wind
sub-pump
start purging @ 1413
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1417 2.0 8.52 14.6 2.56 64.9 612 29.6
1419 4.0 7.69 14.3 1.34 62.8 614 11.8
1422 6.0 7.51 14.3 0.59 60.9 614 3.89
Sampling Date & Time 9/20/2016 @ 1422
Notes
Dup @ 1425
F.B @ 1430
E.B @ 1435
T.B @ 1440
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. MW-7
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 23.0 DTW (from TOC) 8.65 Volume H2O in well 2.3
Other Information
Cloudy, 85°
5 mph wind
sub-pump
start purging @ 1442
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1444 2.5 8.35 18.2 2.61 39.0 484 20.6
1446 5.0 7.84 17.9 2.08 40.0 484 10.2
1448 7.5 7.59 17.8 2.86 40.6 485 4.01
Sampling Date & Time 9/20/2016 @ 1448
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. CAO-1
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 37.0 DTW (from TOC) 26.51 Volume H2O in well 1.7
Other Information
Sunny, 80°
5 mph wind
sub-pump
start purging @ 1845
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1849 2.0 7.05 16.2 3.42 55.4 1190 29.6
1851 4.0 6.93 16.2 1.39 49.0 1195 4.10
1853 6.0 6.87 16.2 0.90 42.3 1205 8.68
Sampling Date & Time 9/20/2016 @ 1853
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. CAO-2
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 39.65 DTW (from TOC) 28.64 Volume H2O in well 1.7
Other Information
Sunny 85°
5 mph wind
sub-pump
start purging @ 1125
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1127 2.0 7.59 16.7 0.99 81.7 603 56.2
1129 4.0 7.39 16.7 0.97 79.8 596 46.3
1131 6.0 7.23 16.7 0.72 78.1 596 21.5
1133 8.0 7.07 16.6 0.65 76.8 595 9.8
Sampling Date & Time 9/20/2016 @ 1133
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. CAO-3
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 23.0 DTW (from TOC) 10.67 Volume H2O in well 2.0
Other Information
Sunny 85°
5 mph wind
sub-pump
start purging @ 1110
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1112 2.0 8.03 19.8 1.52 62.0 433 8.07
1114 4.0 7.90 19.8 0.53 60.8 429 2.92
1116 6.0 7.79 19.8 0.38 59.9 428 3.77
Sampling Date & Time 9/20/2016 @ 1116
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. NAB-2
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? no
Well Depth 93.0 DTW (from TOC) 78.18 Volume H2O in well 2.4
Other Information
Cloudy 80°
5 mph wind
sub-pump
start purging @ 1810
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1813 2.5 7.49 16.9 1.60 18.6 571 70.7
1817 5.0 7.36 16.6 0.79 22.4 591 54.3
1821 7.5 7.32 16.5 0.96 19.8 601 39.3
1826 10.0 7.31 16.8 1.32 11.3 612 10.3
Sampling Date & Time 9/20/2016 @ 1826
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. NAB-3
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 47.0 DTW (from TOC) 25.55 Volume H2O in well 3.4
Other Information
Sunny 70°
5 mph wind
sub-pump
start purging @ 0706
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 0714 3.5 7.64 15.4 1.67 57.7 597 186
0718 7.0 7.48 15.0 0.95 54.1 573 54.9
0722 10.5 7.42 14.7 2.25 55.4 578 34.9
0729 14.0 7.47 15.0 6.18 57.2 574 741
0734 17.5 7.44 15.1 6.62 57.6 572 90.1
0741 21.0 7.52 15.2 6.74 55.8 569 304
0748 24.0 7.43 15.2 6.49 56.8 567 306
0805 32.0 7.37 15.3 6.09 55.7 565 29.9
Sampling Date & Time 9/20/2016 @ 0805
Notes Pad is lifted off of the ground.
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. NAB-4
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 132.0 DTW (from TOC) 108.35 Volume H2O in well 3.8
Other Information
Sunny 80°
5 mph wind
sub-pump
start purging @ 0927
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 0956 4.0 7.61 16.5 1.29 58.6 637 150
1001 8.0 7.41 16.5 0.91 58.8 637 26.2
1007 12.0 7.29 16.5 0.61 58.6 635 5.86
Sampling Date & Time 9/20/2016 @ 1007
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. NAB-7
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 44.0 DTW (from TOC) 23.16 Volume H2O in well 3.3
Other Information
Sunny 80°
5 mph wind
sub-pump
start purging @ 1500
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1503 3.5 7.97 15.8 1.90 33.6 521 39.1
1507 7.0 7.59 15.2 0.98 36.0 520 26.5
1513 10.5 7.50 15.3 4.65 37.8 519 75.0
1521 14.0 7.42 15.5 5.61 40.8 519 73.0
1528 17.5 7.42 15.6 5.84 40.0 520 51.0
1541 21.0 7.46 15.9 5.44 38.6 520 41.9
1544 24.5 7.43 15.9 5.33 38.3 519 15.1
Sampling Date & Time 9/20/2016 @ 1544
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/19/2016 Well No. NAB-8
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 95.0 DTW (from TOC) 77.00 Volume H2O in well 2.9
Other Information
Sunny 85°
5 mph wind
Bailer
start purging @ 1341
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/19/2016 1350 3.0 8.09 19.0 3.56 85.3 534 19.5
Dry @ 2 gallons
9/20/2016 0630 7.42 17.2 3.27 88.6 511 17.2
Sampling Date & Time 9/20/2016 @ 0630
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. MW-509D
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 39.65 DTW (from TOC) 23.38 Volume H2O in well 2.6
Other Information
cloudy 80°
5 mph wind
sub-pump
start purging @ 1645
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1650 3.0 8.12 17.0 4.92 -9.6 541 736
1655 6.0 7.36 16.6 4.94 -8.7 525 278
1702 9.0 7.18 16.6 4.55 -5.9 534 435
1709 12.0 7.10 16.4 4.26 -3.8 535 367
1719 15.0 7.06 16.4 4.05 -0.5 538 182
1726 18.0 7.04 16.3 3.79 1.1 539 177
1734 21.0 7.06 16.3 4.00 2.4 532 150
1800 39.0 7.13 16.5 3.59 5.6 527 43.7
Sampling Date & Time 9/20/2016 @ 1800
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. MW-577
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 55.6 DTW (from TOC) 42.33 Volume H2O in well 2.1
Other Information
Sunny 80°
5 mph wind
sub-pump
start purging @ 0820
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 0824 2.0 7.70 16.0 2.65 60.0 599 208
0827 4.0 7.61 16.0 0.55 48.4 594 16.3
0830 6.0 7.58 15.9 0.42 47.5 560 15.1
0834 8.0 7.57 15.9 0.38 46.7 559 7.61
Sampling Date & Time 9/20/2016 @ 0834
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. MW-633D
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well OK Locked? YES
Well Depth 87.92 DTW (from TOC) 63.56 Volume H2O in well 4.0
Other Information
Sunny 85°
5 mph wind
sub-pump
start purging @ 1020
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1032 4.0 7.56 16.8 0.40 55.0 602 36.2
1040 8.0 7.39 16.8 0.27 56.2 601 5.22
1052 12.0 7.55 17.6 0.20 48.5 600 3.56
Sampling Date & Time 9/20/2016 @ 1052
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. MW-689D
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 44.45 DTW (from TOC) 25.96 Volume H2O in well 3.0
Other Information
Sunny 80°
5 mph wind
sub-pump
start purging @ 0845
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 0851 3.0 7.93 16.4 0.92 51.9 545 210
0855 6.0 7.82 16.5 0.45 46.4 551 52.7
0903 9.0 7.86 16.6 2.98 45.1 448 >1000
0912 12.0 7.74 17.4 0.69 43.3 548 348
0918 15.0 7.72 16.4 0.51 41.1 555 106
0921 18.0 7.69 16.5 0.38 41.4 560 64.4
0925 21.0 7.66 16.5 0.33 41.4 560 18.1
Sampling Date & Time 9/20/2016 @ 0925
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/19/2016 Well No. NE-2
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 64.0 DTW (from TOC) 53.90 Volume H2O in well 1.6
Other Information
Cloudy 85°
5 mph wind
bailer
start purging @ 1240
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/19/2016 1240 1.0 5.96 18.2 1.86 159.1 1683 32.1
Sampling Date & Time 9/19/2016 @ 1240
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/19/2016 Well No. NE-3
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 27.7 DTW (from TOC) 7.61 Volume H2O in well 3.2
Other Information
Sunny 85°
5 mph wind
Sub-pump
started purging @ 1300
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/19/2016 1315 3.5 7.39 18.9 1.45 54.2 518 205
Dry @ 5 gallons
9/20/2016 0650 7.80 20.1 5.30 85.5 479 26.8
Sampling Date & Time 9/20/2016 @ 0650
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/20/2016 Well No. NE-6
Sampling Personnel Darren Motley
Casing Diameter 2.0” Condition of well ok Locked? yes
Well Depth 18.15 DTW (from TOC) 9.08 Volume H2O in well 1.4
Other Information
Sunny 90°
5 mph wind
sub-pump
start purging @ 1158
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/20/2016 1201 1.5 7.67 18.5 3.49 7.9 472 4.76
1207 3.0 7.63 18.1 2.68 14.7 498 2.42
1212 4.5 7.69 18.1 2.54 16.1 497 1.13
Sampling Date & Time 9/20/2016 @ 1212
Notes
Revised 3/2016
Field Groundwater Sampling Record
Facility NABORS Date 9/21/2016 Sample. Leachate
Sampling Personnel Darren Motley
Other Information
Sunny 70°
5 mph wind
Date Time Volume (gallons)
pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
9/21/2016 0830 8.06 23.8 4.31 113.3 2627 130
Sampling Date & Time 9/21/2016 @ 0830
Notes
Revised 3/2016
Field Spring Sampling Record
Facility NABORS Date 9/21/2016
Sampling Personnel Darren Motley
Other Information
Sunny 65
5 mph wind
Sample ID Sample Date
Time pH (SU)
Temp (oC)
D.O. (mg/L)
ORP (mV)
S.C (µSm)
Turbidity (NTU)
SP-NE-3 0630 Dry
TSP-3 0635 Dry
TSP-4 0720 Dry
Spring-A 0646 7.99 17.2 5.95 60.2 490 16.2
Class I Draw 0810 8.90 21.6 5.05 55.2 321 30.4
Class IV Draw 0730 8.53 19.6 5.48 58.0 543 8.39
SP-7 0700 8.20 19.5 5.31 54.9 410 31.2
Spring B 0650 Dry
Entrance Sweep 0710 8.13 19.3 4.61 55.2 499 21.6
Notes
APPENDIX C LABORATORY ANALYTICAL RESULTS
ANALYTICAL REPORTOctober 07, 2016
SCS Engineers - Little Rock, AR
Sample Delivery Group: L861275
Samples Received: 09/22/2016
Project Number:
Description: Nabors Landfill
Report To: Stacie Whitmer
11219 Richardson Drive
North Little Rock, AR 72113
Entire Report Reviewed By:
October 07, 2016
[Preliminary Report]
Mark W. BeasleyTechnica l Serv ice Representa t ive
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by ESC is performed per guidance provided in laboratory standard operating procedures: 060302, 060303, and 060304.
12065 Lebanon Rd Mount Jul iet , TN 37122 615-758-5858 800-767-5859 www.esclabsciences.com
October 07, 2016
Mark W. BeasleyTechnica l Serv ice Representa t ive
http://www.esclabsciences.comhttps://www.esclabsciences.com/loginmailto:[email protected]?subject=ESC Lab Sciences SDG: L861275&body=Email regarding SDG: L861275mailto:[email protected]?subject=ESC Lab Sciences SDG: L861275&body=Email regarding SDG: L861275http://www.esclabsciences.commailto:[email protected]?subject=ESC Lab Sciences SDG: L861275&body=Email regarding SDG: L861275
ONE LAB. NATIONWIDE.TABLE OF CONTENTS
¹Cp: Cover Page 1
²Tc: Table of Contents 2
³Ss: Sample Summary 4
⁴Cn: Case Narrative 12
⁵Sr: Sample Results 13
MW-1 L861275-01 13
MW-2 L861275-02 15
MW-3 L861275-03 17
MW-4 L861275-04 19
MW-5 L861275-05 21
MW-6 L861275-06 23
MW-7 L861275-07 25
CAO-1 L861275-08 27
CAO-2 L861275-09 29
CAO-3 L861275-10 31
NAB-2 L861275-11 33
NAB-3 L861275-12 35
NAB-4 L861275-13 37
NAB-7 L861275-14 39
NAB-8 L861275-15 41
MW-509D L861275-16 43
MW-577 L861275-17 45
MW-689D L861275-18 47
MW-633D L861275-19 49
NE-2 L861275-20 51
NE-3 L861275-21 53
NE-6 L861275-22 55
MW-1R L861275-23 57
SP-7 L861275-24 59
SPRING-A L861275-25 61
LANDFILL ENTRANCE SEEP L861275-26 63
CLASS IV DRAW L861275-27 65
CLASS I DRAW L861275-28 67
LEACHATE L861275-29 69
DUPLICATE L861275-30 71
FIELD BLANK L861275-31 73
EQUIPMENT BLANK L861275-32 75
TRIP BLANK L861275-33 76
⁶Gl: Glossary of Terms 77
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Gl
7
Al
8
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
SCS Engineers - Little Rock, AR L861275 10/07/16 11:45 2 of 84
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
SCS Engineers - Little Rock, AR L861275 10/07/16 12:18 2 of 84
ONE LAB. NATIONWIDE.TABLE OF CONTENTS
⁷Al: Accreditations & Locations 78
⁸Sc: Chain of Custody 79
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Gl
7
Al
8
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
SCS Engineers - Little Rock, AR L861275 10/07/16 11:45 3 of 84
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
SCS Engineers - Little Rock, AR L861275 10/07/16 12:18 3 of 84
ONE LAB. NATIONWIDE.SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-1 L861275-01 GW Darren Motley 09/20/16 16:07 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG910771 1 09/25/16 04:14 09/25/16 06:49 JM
Mercury by Method 7470A WG910816 1 09/24/16 06:41 09/26/16 14:58 NJB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 19:37 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911145 1 09/27/16 03:59 09/27/16 03:59 ACG
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:42 09/23/16 12:42 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:15 ASK
Wet Chemistry by Method 9056A WG910772 1 09/24/16 23:09 09/24/16 23:09 CM
Wet Chemistry by Method 9056A WG910772 5 09/24/16 23:24 09/24/16 23:24 CM
Wet Chemistry by Method 9060A WG912826 2 10/05/16 02:03 10/05/16 02:03 SJM
Collected by Collected date/time Received date/time
MW-2 L861275-02 GW Darren Motley 09/20/16 13:49 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG910771 1 09/25/16 04:14 09/25/16 06:49 JM
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 15:56 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 19:40 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911145 1 09/27/16 04:20 09/27/16 04:20 ACG
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:42 09/23/16 12:42 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:16 ASK
Wet Chemistry by Method 9056A WG910772 1 09/24/16 23:39 09/24/16 23:39 CM
Wet Chemistry by Method 9060A WG912826 1 10/05/16 02:15 10/05/16 02:15 SJM
Collected by Collected date/time Received date/time
MW-3 L861275-03 GW Darren Motley 09/20/16 11:49 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG910771 1 09/25/16 04:14 09/25/16 06:49 JM
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 15:59 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 19:43 VSS
Metals (ICPMS) by Method 6020 WG911795 5 09/29/16 13:37 09/29/16 21:03 JDG
Volatile Organic Compounds (GC/MS) by Method 8260B WG911145 1 09/27/16 04:40 09/27/16 04:40 ACG
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:42 09/23/16 12:42 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:17 ASK
Wet Chemistry by Method 9056A WG910772 1 09/24/16 23:55 09/24/16 23:55 CM
Wet Chemistry by Method 9060A WG912129 1 09/29/16 19:04 09/29/16 19:04 AS
Collected by Collected date/time Received date/time
MW-4 L861275-04 GW Darren Motley 09/20/16 12:56 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG910771 1 09/25/16 04:14 09/25/16 06:49 JM
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 16:02 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 19:46 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 02:24 10/01/16 02:24 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:43 09/23/16 12:43 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:18 ASK
Wet Chemistry by Method 9056A WG910772 1 09/25/16 00:10 09/25/16 00:10 CM
Wet Chemistry by Method 9060A WG912129 1 09/29/16 19:38 09/29/16 19:38 AS
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Gl
7
Al
8
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
SCS Engineers - Little Rock, AR L861275 10/07/16 11:45 4 of 84
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
SCS Engineers - Little Rock, AR L861275 10/07/16 12:18 4 of 84
ONE LAB. NATIONWIDE.SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-5 L861275-05 GW Darren Motley 09/20/16 13:24 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911017 1 09/26/16 12:48 09/26/16 13:23 MMF
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 16:05 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 19:50 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 02:47 10/01/16 02:47 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:43 09/23/16 12:43 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:19 ASK
Wet Chemistry by Method 9056A WG910772 1 09/24/16 15:42 09/24/16 15:42 CM
Wet Chemistry by Method 9060A WG912129 1 09/29/16 19:55 09/29/16 19:55 AS
Collected by Collected date/time Received date/time
MW-6 L861275-06 GW Darren Motley 09/20/16 14:22 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911017 1 09/26/16 12:48 09/26/16 13:23 MMF
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 16:08 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 19:53 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 03:11 10/01/16 03:11 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:44 09/23/16 12:44 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:22 ASK
Wet Chemistry by Method 9056A WG910772 1 09/24/16 18:47 09/24/16 18:47 CM
Wet Chemistry by Method 9060A WG912129 1 09/29/16 21:06 09/29/16 21:06 AS
Collected by Collected date/time Received date/time
MW-7 L861275-07 GW Darren Motley 09/20/16 14:48 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911017 1 09/26/16 12:48 09/26/16 13:23 MMF
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 16:11 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 19:56 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 03:34 10/01/16 03:34 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:44 09/23/16 12:44 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:23 ASK
Wet Chemistry by Method 9056A WG910772 1 09/24/16 19:02 09/24/16 19:02 CM
Wet Chemistry by Method 9060A WG912129 1 09/29/16 22:06 09/29/16 22:06 AS
Collected by Collected date/time Received date/time
CAO-1 L861275-08 GW Darren Motley 09/20/16 18:53 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911017 1 09/26/16 12:48 09/26/16 13:23 MMF
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 16:14 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 20:00 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 03:57 10/01/16 03:57 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:44 09/23/16 12:44 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:24 ASK
Wet Chemistry by Method 9056A WG910772 10 09/24/16 20:19 09/24/16 20:19 CM
Wet Chemistry by Method 9056A WG911410 1 09/26/16 23:22 09/26/16 23:22 CM
Wet Chemistry by Method 9060A WG912129 1 09/29/16 22:24 09/29/16 22:24 AS
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Gl
7
Al
8
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
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ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
SCS Engineers - Little Rock, AR L861275 10/07/16 12:18 5 of 84
ONE LAB. NATIONWIDE.SAMPLE SUMMARY
Collected by Collected date/time Received date/time
CAO-2 L861275-09 GW Darren Motley 09/20/16 11:33 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911017 1 09/26/16 12:48 09/26/16 13:23 MMF
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 16:17 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 20:03 VSS
Metals (ICPMS) by Method 6020 WG911795 5 09/29/16 13:37 09/29/16 21:07 JDG
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 04:20 10/01/16 04:20 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:45 09/23/16 12:45 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:25 ASK
Wet Chemistry by Method 9056A WG910772 1 09/24/16 20:34 09/24/16 20:34 CM
Wet Chemistry by Method 9060A WG912129 1 09/29/16 22:36 09/29/16 22:36 AS
Collected by Collected date/time Received date/time
CAO-3 L861275-10 GW Darren Motley 09/20/16 11:16 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911017 1 09/26/16 12:48 09/26/16 13:23 MMF
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 16:20 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 20:06 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 04:43 10/01/16 04:43 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:45 09/23/16 12:45 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:26 ASK
Wet Chemistry by Method 9056A WG910772 1 09/24/16 16:12 09/24/16 16:12 CM
Wet Chemistry by Method 9060A WG912129 1 09/29/16 22:50 09/29/16 22:50 AS
Collected by Collected date/time Received date/time
NAB-2 L861275-11 GW Darren Motley 09/20/16 18:26 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911017 1 09/26/16 12:48 09/26/16 13:23 MMF
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 16:29 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 20:18 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 05:06 10/01/16 05:06 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:45 09/23/16 12:45 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:28 ASK
Wet Chemistry by Method 9056A WG910776 1 09/26/16 12:24 09/26/16 12:24 SAM
Wet Chemistry by Method 9060A WG912129 1 09/29/16 23:06 09/29/16 23:06 AS
Collected by Collected date/time Received date/time
NAB-3 L861275-12 GW Darren Motley 09/20/16 08:05 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911017 1 09/26/16 12:48 09/26/16 13:23 MMF
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 16:32 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 20:22 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 05:29 10/01/16 05:29 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:46 09/23/16 12:46 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:52 ASK
Wet Chemistry by Method 9056A WG910776 1 09/26/16 12:53 09/26/16 12:53 SAM
Wet Chemistry by Method 9060A WG912129 1 09/29/16 23:21 09/29/16 23:21 AS
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Gl
7
Al
8
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
SCS Engineers - Little Rock, AR L861275 10/07/16 11:45 6 of 84
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
SCS Engineers - Little Rock, AR L861275 10/07/16 12:18 6 of 84
ONE LAB. NATIONWIDE.SAMPLE SUMMARY
Collected by Collected date/time Received date/time
NAB-4 L861275-13 GW Darren Motley 09/20/16 10:02 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911017 1 09/26/16 12:48 09/26/16 13:23 MMF
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 16:35 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 20:25 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 05:52 10/01/16 05:52 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:46 09/23/16 12:46 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:53 ASK
Wet Chemistry by Method 9056A WG910776 1 09/26/16 13:21 09/26/16 13:21 SAM
Wet Chemistry by Method 9060A WG912129 1 09/29/16 23:37 09/29/16 23:37 AS
Collected by Collected date/time Received date/time
NAB-7 L861275-14 GW Darren Motley 09/20/16 15:44 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911017 1 09/26/16 12:48 09/26/16 13:23 MMF
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 16:38 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 20:28 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 06:15 10/01/16 06:15 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:46 09/23/16 12:46 KK
Wet Chemistry by Method 9012B WG910505 1 09/27/16 10:05 09/27/16 15:34 ASK
Wet Chemistry by Method 9056A WG910776 1 09/26/16 14:05 09/26/16 14:05 SAM
Wet Chemistry by Method 9060A WG912826 1 10/05/16 02:38 10/05/16 02:38 SJM
Collected by Collected date/time Received date/time
NAB-8 L861275-15 GW Darren Motley 09/20/16 06:30 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911018 1 09/26/16 15:38 09/26/16 16:17 MMF
Mercury by Method 7470A WG910609 1 09/23/16 10:59 09/23/16 16:40 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 20:32 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 06:38 10/01/16 06:38 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:47 09/23/16 12:47 KK
Wet Chemistry by Method 9012B WG910620 1 09/26/16 09:23 09/26/16 16:10 DR
Wet Chemistry by Method 9056A WG910776 1 09/26/16 14:19 09/26/16 14:19 SAM
Wet Chemistry by Method 9060A WG912826 1 10/05/16 02:50 10/05/16 02:50 SJM
Collected by Collected date/time Received date/time
MW-509D L861275-16 GW Darren Motley 09/20/16 18:00 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911018 1 09/26/16 15:38 09/26/16 16:17 MMF
Mercury by Method 7470A WG910664 1 09/23/16 10:58 09/23/16 14:13 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 20:35 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 07:02 10/01/16 07:02 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:47 09/23/16 12:47 KK
Wet Chemistry by Method 9012B WG910620 1 09/26/16 09:23 09/26/16 16:11 DR
Wet Chemistry by Method 9056A WG910776 1 09/26/16 14:33 09/26/16 14:33 SAM
Wet Chemistry by Method 9060A WG912826 1 10/05/16 04:38 10/05/16 04:38 SJM
1
Cp
2
Tc
3
Ss
4
Cn
5
Sr
6
Gl
7
Al
8
Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
SCS Engineers - Little Rock, AR L861275 10/07/16 11:45 7 of 84
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:
SCS Engineers - Little Rock, AR L861275 10/07/16 12:18 7 of 84
ONE LAB. NATIONWIDE.SAMPLE SUMMARY
Collected by Collected date/time Received date/time
MW-577 L861275-17 GW Darren Motley 09/20/16 08:34 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911018 1 09/26/16 15:38 09/26/16 16:17 MMF
Mercury by Method 7470A WG910664 1 09/23/16 10:58 09/23/16 14:22 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 20:38 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 07:24 10/01/16 07:24 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:47 09/23/16 12:47 KK
Wet Chemistry by Method 9012B WG910620 1 09/26/16 09:23 09/26/16 16:13 DR
Wet Chemistry by Method 9056A WG910776 1 09/26/16 14:48 09/26/16 14:48 SAM
Wet Chemistry by Method 9060A WG913063 1 10/06/16 17:28 10/06/16 17:28 CSU
Collected by Collected date/time Received date/time
MW-689D L861275-18 GW Darren Motley 09/20/16 09:25 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911018 1 09/26/16 15:38 09/26/16 16:17 MMF
Mercury by Method 7470A WG910664 1 09/23/16 10:58 09/23/16 14:25 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 20:41 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 07:47 10/01/16 07:47 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:48 09/23/16 12:48 KK
Wet Chemistry by Method 9012B WG910620 1 09/26/16 09:23 09/26/16 16:16 DR
Wet Chemistry by Method 9056A WG910776 1 09/26/16 15:02 09/26/16 15:02 SAM
Wet Chemistry by Method 9060A WG912826 1 10/05/16 05:00 10/05/16 05:00 SJM
Collected by Collected date/time Received date/time
MW-633D L861275-19 GW Darren Motley 09/20/16 10:52 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG911018 1 09/26/16 15:38 09/26/16 16:17 MMF
Mercury by Method 7470A WG910664 1 09/23/16 10:58 09/23/16 14:28 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 20:45 VSS
Volatile Organic Compounds (GC/MS) by Method 8260B WG911146 1 10/01/16 08:11 10/01/16 08:11 JM
Wet Chemistry by Method 4500S2 D-2011 WG910473 1 09/23/16 12:48 09/23/16 12:48 KK
Wet Chemistry by Method 9012B WG910620 1 09/26/16 09:23 09/26/16 16:17 DR
Wet Chemistry by Method 9056A WG910776 1 09/26/16 15:17 09/26/16 15:17 SAM
Wet Chemistry by Method 9060A WG912826 1 10/05/16 05:11 10/05/16 05:11 SJM
Collected by Collected date/time Received date/time
NE-2 L861275-20 GW Darren Motley 09/19/16 12:40 09/22/16 09:00
Method Batch Dilution Preparation Analysis Analyst
date/time date/time
Gravimetric Analysis by Method 2540 C-2011 WG910769 1 09/25/16 04:05 09/25/16 05:34 JM
Mercury by Method 7470A WG910664 1 09/23/16 10:58 09/23/16 14:31 TRB
Metals (ICPMS) by Method 6020 WG911795 1 09/29/16 13:37 09/29/16 18:26 VSS
Volatile Organic Compounds (GC/MS