The URL can be used to link to this page

Browse Search

Home My WebLink About20174187.tiff'IMI G E I �,.,..... Consulting Engineers and Scientists Soil Sampling and Monitoring Summary Report Aurora Water North Campus Aquifer Recharge and Recovery Site A Fort Lupton, Colorado Submitted to; Aurora Water 15151 E. Alameda Parkway Aurora, CO 80012 Submitted by: GEI Consultants, Inc. 4601 DTC Boulevard, Suite 900 Denver, CO 80237 December 5, 2017 Project 1703410 Thorn. Daigle, P. Project Manager Coornimini cas-i-i O ns I Pal g 2017-4187 PL, r cr a s NORTH CAMPUS ARR. SOIL SAMPLING DECEMBER 2017 Table of Contents I. Introducti' nOWIE 0 mmmmmmmmmmmmmmmmmm .....,a......r......■a,.i,i1i! 1- 1.1 Background •...titiir■■..1-1 1.2 Previous Soil Sampling and Monitoring Activities1-1 2. Field Activities 3WNiliiiiii.■r■+lMnPOI liiirrlriiiiiinit " 2-1 21 Utility Clearance ■ ■ 2-1 2.2 Soil Boring Program 2-"I 2.3 Soil ampling Program ......,w.... .,.2-'1 2.4 Field Observations ..,, -2 2.5 Laboratory Testing ■ ■ . ■ - 2.6 Quality Assurance / Quality Control (QNQC) 2-3 2.7 Decontamination •.+._a.r.._.2-3 2.8 Investigation -Derived Waste 2-4 2.9 Surveying .■2-4 3. Sample Results ■.■.....■..t■...■..■.■■■..lono gong lr mow moo31.1 3.1 Analytical Results ..,.•.■ •.3-1 3.2 Data Management and Validation, 3-1 33 Data Evaluation 3-1 3.4 Future Sampling and Data Analysis .. , ... s3-2 4. Conclusions 5. References ''!!!!!•MiMa�.../ _ riw r■.. ■■ ■..r. Itll+Of•lili:iiid S-1 List of Tables Table 1: Summary of Sampling Rationale and Analyses, City of Aurora North Campus Aquifer Recharge and Recovery Site, Aurora, Colorado 2-6 Table 2: ARR Summary Data Table 3-3 List of Figures Figure 1: Prairie ''maters ARR Site A Location leap r nz.............■'i -2 Figure 2: Sampling Locations ....,...... ...2-5 List of Appendices Appendix A: Boring Logs Appendix B: Laboratory Analytical Report Appendix C: Data Validation Summary Report G E I commas Table of Contents 1 'r NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 Acronym and Abbreviations Used in This Report Ag AFT As Ba bgs Ca City Cr EPA ft ft bgs GEI Hg LPB MDL mg/L Pb PPE QAIQC QAPP RCRA RL Se Site TCLP UNCC USR USR-1582 WCDPHE Silver Aquifer Recharge and Recovery Arsenic Barium Below Ground Surface Cadmium City of Aurora Chromium U.S. Environmental Protection Agency Feet Feet Below Ground Surface GEI Consultants, Inc. Mercury Low Permeable Barrier Method Detection Limit Milligrams per Liter Lead Personal Protective Equipment Quality Assurance/Quality Control Quality Assurance Project Plan Resource Conservation Recovery Act Reporting Limit Selenium Fort Lupton, Colorado Toxicity Characteristic Leaching Procedure Utility Notification Center of Colorado Use by Special Review Prairie Waters Project Weld County Department of Public Health and Environment GEI Consultants, Inc. Table of Contents I ii NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 1. Introduction On behalf of City of Aurora (City) GEL Consultants, Inc. (GEE) conducted soil sampling and monitoring at the Aurora Water Prairie Waters North Campus Aquifer Recharge and Recovery (ARR) Site A located in Weld County in Fort Lupton, Colorado (Site). The sampling was conducted in order to satisfy Condition 3B of the Weld County Use by Special Review (USR) Permit for the Prairie Waters Project (USR-1582). The purpose of the sampling is to assess if metals are accumulating in soils within the Low Permeable Barrier (LPB) boundary at the Site. The Site is located at 2 962 County Road 23, Fort Lupton, CO 80621; just west of the South Platte River and East of Big Dry Creek (Fig. 1). 1.1 Background In October 2013, a Soil Sampling and Monitoring Work Plan was prepared by GEI to address Weld County's concerns about metals accumulating at the Site (GEl, 2013). The work plan was updated for 2017 sampling activities and states that soil samples will be collected from 10 locations within the LPB boundary and will be analyzed for Resource Conservation Recovery Act (RCRA) 8 metals using the Toxicity Characteristic Leaching Procedure (TCLP) analysis. In accordance with the work plan, the City is collecting soil samples from the same 10 locations on an annual basis for the first 5 years of Site operations. If no evidence of metals accumulation in soil is found after 5 years, the City will decrease the sampling frequency to once every 5 years. If there is still no evidence of metals accumulation in soils after 20 years, the City will submit a final report to the Weld County Department of Public Health and Environment (WCDPHE). Baseline samples were collected prior to the start of site operations in 2012. This year's sampling activities represent the fifth and final year of the initial 5 -year annual sampling program approved by WDPHE. 1.2 Previous Soil Sampling and Monitoring Activities In March 2012, CI-I2M Hill conducted the first round of soil sampling at 10 locations within the Site LPB boundary to establish baseline concentrations of RCRA 8 metals using TCLP analysis within the Site's shallow groundwater zone (H Hill, 2012). The initial sampling event was conducted prior to initiating Site operations using a direct push drill rig. Shallow groundwater was generally encountered at approximately 9 to 19 feet below ground surface (bgs) and sample depths ranged from 15 to 30 feet bgs. Baseline sample results did not indicate the presence of any RCRA 8 metals using TCLP analysis at concentrations above the laboratory reporting limit. Introduction I 1-1 NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 'Enc_p r".tr•:#\ t,?_ 3620 Aa1r.<rn `Hater Not', Cimput• ARR'Fiq 1_2017 rrrtd AR R SITE A, PROPERTY BOUNDARY NOTES: I. Figure from Soil Sampling and Monitoring Summary Report, City of Aurora, Aquifer Recharge and Recovery Site, Fort Lupton, Colorado. May 2012 CH2M Hill Legend I II hal 1 U ti -k&&-41' r is At ft of F saiirh1=14'~1 gf5;`-j't Fit Soli Sampling and Monitoring Summary Report North Campus ARR Site A Soil Monitoring Fort Lupton, Colorado Aurora Water Aurora, Colorado Project 1703410 Fig. 1: Prairie Waters ARR Site A Location Map PRAIRE WATERS ARR SITE A LOCATION MAP December 2017 GEl Consultants, Inc. Introduction 11- NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 2. Field Activities All field activities were conducted in accordance with the Soil Sampling and Monitoring Work plan including the site -specific Health and Safety Plan and Quality Assurance Project Plan ('LAPP) prepared by GET GEI, 2017). 2.1 Utility Clearance GEI retained Dakota Drilling, Inc. to perform the subsurface investigation. At least 72 hours prior to performing subsurface work, GE! contacted the Utility Notification Center of Colorado (UNCC) to identify any underground utilities on the Site. Dakota Drilling and +AEI also coordinated with Jason Lee (Site caretaker) to identify any other utilities not located by LTNCC. Boring locations were pre -marked by City surveyors and an on -site utility meeting was held on September 29, 2017. All utilities were cleared by UNCC and drilling activities were conducted on October 12, 2017. 2.2 Soil Boring Program On October 12, 2017, Dakota Drilling advanced ten soil borings at the Site using a Geoprobe® direct push drilling rig and solid stem augers. Soil borings were advanced in the same locations as the previous year in accordance with the sampling plan approved by W DPHE. The locations of the soil borings are illustrated in Fig. 2. Sampling rationale and target depths are summarized in Table 1. Soil cores were collected continuously at 4 -foot intervals from the ground surface to the boring termination depth using a Geoprobe® Macro -Core® sampling device with dedicated acetate liners. The acetate liners were cut open at the surface to expose the soil profile and detailed descriptions of the soil at each boring were recorded on individual boring logs, provided in Appendix A. Soils were classified in accordance with the Unified Soil Classification System and all cores were inspected for gross contamination by visual and olfactory observations. No evidence of gross contamination was observed in any of the soil borings. Soil borings were backfilled with hydrated bentonite chips, sand, and/or cuttings upon completion. Metal t -post stakes were returned to each location upon completion of backfilling to identify the sample site for future sampling events. 2.3 Soil Sampling Program One soil sample was collected from each of the ten boring locations for laboratory analysis. Samples were collected by extracting soil from a one -foot long section of the acetate liner across the target sample depth interval. In circumstances where direct push methods resulted in refusal or no recovery, soil samples were collected from the cuttings produced by 3 -inch F GEI Consul tarils Field Activities 12-1 NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 outer diameter solid stem augers that were advanced through the target sample depth. Soil samples were placed in a laboratory -provided unpreserved 8 -ounce glass jar. Samples were labeled, documented on a chain of custody, and delivered to the laboratory at the completion of field activities. Soil sampling target depths were specified in the initial Soil Sampling and Monitoring Summary Report prepared by CH2M Hill in 2012. The target sample depth was achieved at five out of ten locations during 2017 drilling and sampling. At the remaining five locations, soil sampleswere collected within one to two feet of the target depth. All samples were collected below the observed water table in the saturated zone. 2.4 Field {observations GE! met with Dakota Drilling and the Site caretaker on October 12, 2017 to begin the soil investigation. The Site caretaker provided access to each boring location and provided Site knowledge about utility locations. All ten borings were completed on October 12, 2017. Boring logs and detailed soil descriptions are provided in Appendix A. Soil conditions encountered across the Site ranged from tight clays to dense sand and gravel, In general, higher portions of silt and clay were encountered in shallow soils above the water table with more coarse -grained widely -graded sand and gravel present in the saturated zone generally below a depth of about 10 feet. Groundwater was encountered between 4.0 and 16 feet bgs. All samples were collected below the observed water table in the saturated zone. Soils encountered in this year's investigation were dense, which is similar to previous years. Locations ARR-1, ARR-4, ARR-5, Alm. -8, and ARR-10 did not yield soil recovery using direct push methods within the target sampling depth and soil samples were collected from the cuttings produced by 3 -inch outer diameter solid stem augers as described in Section 2.3 above. GEI Consultants, Inc. Field Activities 12-2 NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 245 Laboratory Testing Laboratory analysis was performed by Test America Laboratories, Inc., located in Arvada, Colorado. Test America is certified by The NELAC Institute. Samples were analyzed for TCLP RCRA 8 metals by U.S. Environmental Protection Agency (EPA) Method 1311 / 6010 / 7471 that include: • Silver (Ag) • Arsenic (As) • Barium (Ba) • Cadmium (Ca) • Chromium {Cr} • Mercury (Hg) • Lead (Pb) • Selenium (Se) The 2017 Analytical Report from Test America is provided in Appendix B. 2.6 Quality Assurance I Quality Control {QA1QC} QA/QC samples including one field duplicate and one equipment blank were collected during the soil sampling program. QA/QC samples were collected to evaluate the quality and consistency of the data and allow confirmation that field and laboratory performance requirements were met. One blind field duplicate was collected from the sample at ARR.-7 by collecting the parent sample then splitting the soil volume equally between two sample jars. One equipment blank was collected by running deionized water through the steel shoe of the Geoprobe Macro - Core® sampling core barrel. The deionized water was collected in a laboratory -provided 1 - liter unpreserved glass jar. The purpose of the equipment blank is to ensure that the down - hole sampling equipment has been properly decontaminated between borings. QA/QCanalysis did not indicate any deviations that would affect the interpretation of the primary data. A data validation report and summary of the QA/QC data is provided in Appendix C. 2.7 Decontamination Decontamination procedures were outlined in the work plan and included cleaning the Geoprobe® Macro -Core® drill stem between borings to minimize cross -contamination of soil samples. Disposable sampling tools were used to collect samples from the acetone liners and did not require decontamination. When solid stem augers were required to complete the boring the augers were decontaminated to minimize cross -contamination of the soil samples. GEI Consultants, Inc Field Activities 12-3 NORTH CAMPUS AFT SOIL SAMPLING DECEMBER 2017 2.8 Investigation -Derived Waste Investigation -derived waste generated during the field sampling activities included soil cuttings, decontamination water, decontamination materials (such as paper towels, buckets), personal protective equipment (PPE), and disposable sample supplies (such as acetate liners) . Gross contamination was not observed during drilling activities (i.e., soil staining, petroleum or chemical odors, etc.) and the soil cuttings and decontamination water were disposed on the ground surface at. least 50 feet away from the boring locations. PPE and disposable sampling supplies (spoons, acetate liners) were handled as routine waste and were disposed of by Dakota Drilling. 2.9 Surveying All soil borings were surveyed and staked using steel T -Posts in 2013 by City personnel. GEI installed each boring within approximately one foot of the surveyed locations and re- inserted the steel survey stakes upon completion of drilling. Future borings are anticipated to be installed within a few feet of the staked boring locations from previous sampling activities. GEI Consultants, Inc. Field Activities 12-4 NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 0:\Erg_Rrojed \132i320 Aurora Watnr Norlh Campus ARRkFrg 2_2C17 rrxd A-11►a SouIhwwesl I nIiltrahon Basin NOTES: Asp A_7 1. Figure from Soil Sampling and Monitoring Summary Report, City of Aurora, Aquifer Recharge and Recovery Site, Fort Lupton, Colorado. May 2012 CH2M Hill, 7.4.1 Sirmliirio tuc. oar Ritsnerstryi•Maos -- All c.kHloth is a EIa.. Etc) Central infiltration Baffin A-4:. ARR-9 Soil Sampling and Monitoring Summary Report North Campus ARR Site A Soli Monitoring Fort Lupton, Colorado Aurora Water Aurora, Colorado Fig. 2: Sampling Locations Project 1703410 SAMPLING LOCATIONS December 2017 Fig 2 GEI Consultants, Inc Field Activities + 2-5 NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 Table 1: Summary of Sampling Rationale and Analyses, City of Aurora North Campus Aquifer Recharge and Recovery Site, Aurora, Colorado Location ID Sample Name Target Sample Interval (ft bgs) Interval Actual Sample (ft bgs) Sample Location Surface Elevation (ft) Sample Type Rationale Analysis Sample Media Sample Location 15-16 16-17 ARR-1 ARR-1-SO-1617-101217 4931.31 Primary Determine in soils LPB boundary if located metals with soils are accumulating the ARR Site A TCLP (EPA Metals Methods 1311/6010C/7470A) Soil 9 ft north of A-10 ARR-2 AFT -2 -SO -2324-101217 Soil 24 ft east of A-16 23-24 23-24 4926.18 Primary Determine in soils LPB boundary located if metals with soils are accumulating the ARR Site A TCLP (EPA Metals Methods 1311/6010C/7470A) ARR-3 ARR-3-SO-2324-101217 Soil 25 ft north of A-22 23-24 23-24 4921.12 Primary Determine in soils LPB boundary if located metals with soils are accumulating the ARR Site A (EPA TCLP Metals Methods 131118010 17470A) ARR-4 ARR-4-SO-3132-101217 Soil 50 ft northeast of A-26 29-30 31-32 4923.7 Primary in Determine LPB soils boundary if located metals with soils are the accumulating ARR Site A (EPA TCLP Metals Methods 1311/6010C/7470A) ARR-5 ARR-5-SO-2930-101217 Soil 44 ft southwest of A-5 27-28 29-30 4939 35 Primary Determine in soils LPB located boundary if metals with soils are accumulating the ARR Site A (EPA TCLP Metals Methods 1311/6010C/7470A) ARR-6 ARR-6-SO-2324-101217 Soil 16 ft south of A-8 23-24 23-24 I 4934 91 TCLP (EPA Metals Methods 1311/6010C/7470A) Primary Determine in soils located LPB boundary if metals with soils are accumulating the ARR Site A ARR-7 ARR-7-S 0-1920-101217 Soil 105 ft southeast of A-13 19-20 19-20 4931 82 Primary Determine in soils LPB located boundary if metals with soils are accumulating the ARR Site A TCLP (EPA Metals Methods 18111801 Q17470A) ARR-7 FD -SO -101217 Soil 105 ft southeast of A-13 19-20 19-20 , 4931.82 Duplicate Show collection precision techniques in field sample TCLP (EPA Metals Methods 1311100100 470A) ARR-8 ARR-8-SO-2628-101217 Soil 32 ft east of A-3 27-28 26-28 Primary in Determine soils LPB boundary located if metals with soils are accumulating the ARR Site A TCLP (EPA Metals Methods 131116010C/7470A) 4928.37 ARR-9 ARR-9-SO-1920-101217 Soil 108 ft southeast of A-4.1 19-20 19-20 4931 07 Primary Determine in sods LPB boundary located if metals with soils are accumulating the ARR Site A TCLP Metals (EPA Methods 1311I0010D17470A ) ARR-10 ARR-10-SO-1718-101217 Soil 89 ft southeast of A-1 4933 69 19-20 17-18 Primary Determine in soils located LPB boundary if metals with soils are accumulating the ARR Site A (EPA TCLP Metals Methods 131118010 17470.) Notes: See Fig_ 2 for sampling locations. ft - feet bgs below ground surface ARR - Aquifer Recharge and Recovery LPB - low -permeable barrier EPA U.S. Environmental Protection Agency GEI Consultants, Inc. Field Activities 2-6 NORTH CAMPUS ARR SOIL SAMPLING OCTOBER 2016 3. Sample Results 3.1 Analytical Results Soil samples collected from all 10 borings at the Site are considered representative of native soil conditions within the saturated zone near the immediate cone of depression surrounding select pumping wells. Soil samples were extracted in the laboratory for TCLP analysis of RCRA 8 metals (As, Ba, Cd, Cr, Pb, Hg, Se, and Ag). The laboratory reporting limit (RL) for all eight metals was set below the TCLP screening levels published by the EPA. No metals were detected above the RL in any sample. Several metals were detected and qualified as `V indicating the results were less than the laboratory RL, but greater than the method detection limit (MDL) and are considered approximate values. Cr was detected in nine samples, but was qualified, T. No other metals were detected above the laboratory reporting limit. All detections of Cr remained well below the TCLP screening level published by the EPA. Analytical results are summarized in Table 2 and are compared to TCLP limits, A copy of the laboratory analytical report is provided in Appendix B. 3.2 Data Management and Validation Data were provided by Test America in electronic format and were imported into +GI's EQuiS database management system. Data were validated using the criteria established in the QAPP that was included in the 2017 Work Plan (GEl, 2017). A data validation summary report is provided in Appendix C and concludes that all data are valid. 3.3 Data Evaluation Data collected in October 2017 indicate that T LP metal concentrations are generally the same or tower as were reported from the previous five year's sampling events (Table 2). All detections were qualified `J' by the laboratory indicating that the results are below the RL, but above the MDL and are considered approximate. GEE did not perform a statistical analysis to assess whether a statistically significant change in the TCLP results can be seen due to the very low concentrations of m eta l s detected and the laboratory `J qualifier indicating the values are approximate. Performing a statistical analysis on approximate data would not yield a high level of confidence in the statistical test results. GEl Sample Results 13-1 NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 Given the extremely low levels of metals detected, and the generally similar concentrations this year compared to last year, GE! concludes that RCRA 8 metals are not accumulating in soils within the LPB at the Site based on TCLP analysis. 34 Future Sampling and Data Analysis This year marks the sixth consecutive annual sampling event. Baseline sampling was performed in 2012 prior to facility operation and five consecutive sampling events have been performed since then. No metals have been detected above laboratory reporting limits during any sampling event, When detections have occurred, they have been qualified `J' by the laboratory indicating that the results are below the RL, but above the MILL and are considered approximate. Therefore, a statistical analysis of the data is not considered viable. The six years of analytical data indicate that there is no evidence of accumulation in soil of TCLP 8 metals within the LPB. Therefore, a decrease in sampling frequency will be implemented to once every 5 years up until a 20 -year total duration as indicated in Section 1.1. The next sampling event is scheduled for 2022 and analytical results will be compared to the EPA TCLP regulatory levels. Unless future data indicate an increase in TCLP concentrations for RCRA 8 metals, subsequent sampling events will occur in 2027 and 2032, at which point the sampling program will be complete. GEI Consultants, Inc. Sample Results 13-2 NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 Table 2: AIR. Summary Data Table Chemical Limit(mg/L) Name Units Arsenic mg/L 5 Barium mg/L 100 Cadmium mg/L 1 Chromium mg/L 5 5 Mercury mg/L 0.2 Selenium mg/L 1 Silver mg/L 5 Lead mglL TCLP Location Sample Date Sample Interval (ft) ARR-01 3/7/2012 15-16 < 0.50 0.15 JB < 0.10 0.035 JB < 0 0020 p < 0.10 < 0.50 < 0.50 ARR-01 10/10/2013 16-17 <0.50 0.11 J <0.10 0.0057) <050 <0.002 0 < 0.10 < 0.50 ARR-01 101712014 15-16 < 0.50 0 30 JB < 0 10 0.0072 J < 0.50 < 0 0020 < 0.10 < 0.50 ARR-01 9/1712015 14.5-15 5 < 0.50 0.25 J < 0,10 < 0.050 0.013 J < 0 0020 < 0.10 < 0.50 ARR-01 9/2712010 15-16 < 0 50 < 1.0 < 0.10 0.0052 J < 0.50 < 0.0020 < 0.10 < 0 50 ARR-01 10112/2017 16-17 <0_50 < 1.0 <0.10 0.0054) <0,50 <0.0020 <0.10 <050 ARR-02 3/6/2012 23-24 < 0.50 0_19 JB B < 0.10 0.0095 JB < 0.50 < 0.0020 < 0.10 < 0.50 ARR-02 10/1112013 23-24 < 0.50 0 12 J < 0.10 < 0.50 < 0.50 < 0.0020 < 0.10 < 0.50 ARR-02 10/712014 23-24 < 0.50 0.20 JB < 0.10 < 0.50 0.066 J < 0.0020 0.040 JB < 0.50 ARR-02 0/18/2015 22-23 < 0.50 0_099J < 0.10 < 0.50 < 0.50 < 0.0020 I < 0.10 < 0.50 ARR-02 9/27/2016 23-24 < 0.50 < 1.0 < 0,10 < 0.50 < 0:50 < 0.0020 < 0.10 < 0.50 ARR-02 10112/2017 23-24 I < 0.50 < 1.0 < 0.10 0.0037 0 < 0.50 < 0.0020 < 0.10 I < 0 50 ARR-03 i 3/6/2012 23-24 < 0.50 0.25 JB < 0.10 0.027 JB < 0r 50 < 0.0020 < 0 10 < 0.50 ARR-03 10/11/2013 23-24 < 0.50 0.16 J < 0.10 < 0 50 < 0.50 < 0.0020 < 0.10 < 0.50 ARR-03 1018/2014 23-24 <0.50 0.25 JB <0.10 0.0062 JB <0.50 <0.0020 <0.10 <050 ARR-03 9118/20/5 23-24 < 0.50 0.28 J < 0.10 0.0035 JB < 0.50 < 0.0020 < 0 10 < 0.50 ARR-03 9/27/2016 23-24 < 0.50 < 1.0 < 0.10 < 0.50 < 0.50 < 0.0020 <010 < 0 50 ARR-03 10/1212017 I 23-24 < 0.50 < 1.0 < 0.10 0.0036 J < 0.50 < 0.0020 < 0 10 < 0.50 ARR-04 3/6/2012 29-30 < 0.50 0.28 .18 < 0.10 0.0081 JB < 0.50 < 0.0020 0.030 J < 0.50 ARR-04 10111/2013 29-30 < 0.50 0.27 J < 0.10 < 0.50 <0_50 <00020 < 0.10 < 0.50 ARR-04 10/8/2O14 29-30 < 0.50 0.29 JB < 0.10 0.0030 J < 0.50 < 0.0020 < 0.10 < 0.50 ARR-04 0/18/2015 29-30 <0.50 023J <0.10 <0,50 <0.50 0_00010 JB <0.10 <0.50 ARR-04 9/27/2010 29-30 < 0.50 < 1 0 0.0021 J < 0.50 < 0.50 < 0.0020 < 0 10 < 0.50 ARR-04 10/12/2017 31-32 < 0.50 < 1 0 < 0 10 < 0.50 < 0.50 < 0.0020 < 0.10 < 0.50 ARR-05 3/6/2012 27-28 < 0 50 0.43 JB < 0.10 0.0086 JB < 0.50 < 0.0020 < 0.10 < 0.50 ARR-05 10110/2013 23-24 < 0.50 0.28 J < 0.10 < 0.50 < 0.50 < 0.0020 < 0.10 < 0.50 GEI Consultants. Inc Sample Results 13-3 NORTH CAMPUS ARIA SOIL SAMPLING DECEMBER 2017 TC Chemical LP Limit (rng/L) Name Units Arsenic m g!L 5 Barium mg/L 100 Cadmium mg/L 1 Chromium mg/L 5 Lead mglL 5 gf L Selenium mg/L Silver mg/L 5 Mercury 1 m 0.2 Location Sample Date Sample Interval (II) ARIA -05 10/8/2014 27-28 < 0.50 0 33 JB 0.0025 J 0 0045 J 0.045 J - < 0 0O20 0.10 < 0.50 < ARR-05 9/17/2015 28-30 < 0.50 0.42 J < 0 10 0.0030 JB < 0 50 0.00011 JB c 0.10 < 0.50 AFT --05 9/27/2016 27-28 < 0 50 < 1 0 < 0.10 0.0031 J < 0.50 < 0 0O20 c 0.10 < 0.50 I ARR-05 10/12/2017 29-30 < 0.50 < 1,0 < 0 10 0.0035 J < 0.50 < 0.0020 < 0.10 < 0.50 ARR-06 31712012 23-24 < 0.50 0.30 JB < 0.10 0.0089 JB < 0.50 < 0.0020 < 0.10 < 0.50 ARR-06 10/10/2013 19-20 < 0.50 0.17 J < 0.10 < 0.50 < 0 50 < 0.0020 < 0.10 < 0.50 ARR-06 10/7/2014 23-24 < 0.50 0.38 JB < 0.10 0.0063 J 0.071 J < 0 0020 < 0.10 0.0049 JB ARR-06 9/17/2015 23-24 < 0.50 0.20 J < 0.10 < 0.50 0.072 J 0.0043 < 0.10 < 0.50 ARR-06 9/27/2016 23-24 < 0.50 < 1.0 < 0 10 < 0.50 < 0.50 c 0,0020 < 0.10 < 0.50 ARR-08 10/12/2017 23-24 < 0.50 < 1.0 < 0.10 0.0049 J < 0.50 c 0.0020 < 0.10 < 0.50 ARR-07 3/6/2012 19-20 < 0.50 0.29 JB < 0.10 0.014 JB < 0.50 < 0.0020 < 0.10 < 0.50 ARR-07 10/11/2013 19-20 < 0.50 0.13 J < 0 10 < 0 50 < 0.50 < 0.0020 < 0.10 < 0.50 ARR-07 DUP 10/11/2013 19-20 < 0.50 0.14 J < 0 10 < 0 50 < 0.50 < 0.0020 < 0.10 < 0.50 ARR-07 10/7/2014 19-20 < 0.50 0 071 JB < 0 10 0.0057 J 0 017 J < 0.0020 < 010 < 0.50 ARR-07 D U P 10/7/2014 19-20 < 0.50 0.096 JB < 0.10 < 0.50 0.015 J < 0.0020 c 0.10 < 0.50 AFT -07 9/17/2015 19-20 0.023 J 0.43 J < 0.10 < 0.50 0 013 J < 0.0020 < 0 10 < 0.50 AFAR -07 D U P 9/17/2015 19-20 0.028 J 0.21 J < 0.10 < 0.50 < 0.50 < 0.0020 < 0.10 < 0.50 ARR-07 9/27/2016 19-20 < 0 50 < 1.0 < 0 10 < 0.50 < 0 50 < 0.0020 < 0.10 < 0.50 ARR-07 D U P 9127/2016 19-20 < 0 50 < 1.0 < 0.10 < 0.50 < 0.50 < 0.0020 < 0.10 < 0.50 AFT -07 10/12/2017 19-20 < 0.50 < 1.0 < 0.10 0.0059 J < 0.50 < 0.0020 < 0.10 < 0.50 AFAR -07 D U P 1011212017 19-20 < 0.50 < 1.0 < 0.10 0.0033 J < 0.50 < 0.0020 < 0.10 < 0.50 ARR-06 3/6/2012 27-28 < 0.50 0.17 JB < 0.10 0.0083 JB < 0.50 < 0.0020 < 0.10 < 0.50 ARR-OS D UP 315/2012 27-28 < O50 0 20 JB < 0.10 0.0085 J B < 0.50 < 0 0020 < 0 10 < 0.50 AFT -08 10/10/2013 27-28 < 0.50 0.13 J < 0.10 < 0.50 < 0.50 < 0.0020 < 0 10 < 0.50 ARIA -08 10/8/2014 27-28 < 0.50 0.20 JB < 0.10 < 0.50 < 0.50 < 0.0020 < 0 10 0.0045 JB ARR-06 9/17/2015 27-28 < 0 50 0.054 J < 0.10 < 0.50 < 0.50 < 0.0020 < 0.10 < 0.50 ARIA -08 9/27/2016 27-28 < 0 50 < 1.0 0.0023 J 0,0081 J < 0.50 < 0.0020 c 0.10 < 0 50 GEI Consultants, Inc_ Sample Results 13-4 NORTH CAMPJS ARR SOIL SAMPLING DECEMBER 2017 Arsenic mg1L 5 Barium mg/L 100 Cadmium mg/L 1 Chromium mg/L 5 Lead mg/L 5 I Mercury mg/L 0.2 Selenium Silver mg/L 5 TCLP Chemical Limit Name Units (mg/L) mg/L 1 Location Sample Date Sample Interval (It) ARR-08 10/1212017 26-28 I < 0.50 < 1.0 < 0.10 < 0.0020 < 0.10 < 0 50 0.0051 J ! < 0.50 I ARR-09 ARR-09 ARR-09 ARR-09 ARR-09 ARR-09 10/10/2013 10/7/2014 9/17/2015 9/27/2016 10/12/2017 3/7/2012 F 19-20 19-20 19-20 19-20 19-20 19-20 < <0.50 < <0.50 < < 0 50 0.50 0.50 0.50 0.12 0.19J 0.38 0.16J < < JB JB 1.0 1.0 < 0.10 <0.10 < 0.10 <0.10 0.0076 < 0.10 J 0.0087 0.0032) 0.0003 0.0033 <0.50 < 0.50 JB J J < <0.50 0.070 0 < < 0.50 10 0.50 0 J 50 J < 0,0020 <0.0020 0.000031 J <0.0020 0,.000063 JB* < 0.0020 < 0 10 <010 < 0.10 <0.10 < 0 10 < 0.10 < <0.50 < <050 < < 0.50 0.50 0 50 0.50 ARR-10 ARR-10 ARR-10 ARR-10 ARR-10 ARR-10 I 10/10/2013 10/12/2017 3/6/2012 10/8/2014 9/17/2015 9/27/2016 < < <050 < < < 0.50 0 50 0.50 0.50 0.50 0.30 0.20 0.23JB 0.32 <1.0 < 1.0 JO J J < <010 <010 < < < 0.10 0.10 0.10 0.10 0.0092 < 0.012) < < 0.0031 0.50 0.50 0.50 JB J < < 0.032) < < < 0.50 0.50 0 50 0.50 0.50 < 0.0020 < 0.0020 <0.0020 < 0 0020 < 0..0020 < 0.0020 < < <0.10 < < < 0.10 0.10 0 10 0.10 0.10 0 0041 < <0,50 < < < 0.50 0.50 0 50 0,50 J 19-20 19-20 19-20 19-20 19-20 17-18 Equipment Blank 10110/2013 10/11/2013 10/12/2017 31712012 101712014 10/8/2014 9/17/2015 9/27/2016 -- -- < 0.50 < 0.50 <0.50 < 0.50 < 0.50 < 0 < 0.510 < 0.50 50 0.021 0.0039 0.0063) 0.0096 0.0076 < 0.0020 < 0.0030 < 1.0 J JB JB J < 0.10 < 0.10 <0.10 < 0.10 < 0.10 < 0.10 < 0.10 < 0.10 0.0062 < 0 50 <0.50 0.0031 < 0.050 < 0.050 < 0.50 < 0.50 J JB i, < < <050 < < < 0.013 0.013 0.50 0.50 0.50 0.50 0.50 JB J < 0.0020 < 0.0020 <0.0020 < 0 < 0.0020 < 0.0020 < 0.0020 < 0.0020 0020 < < <010 < < < < < 0,10 0.10 0.10 0.10 0.10 0 10 0.10 < < <0.50 < < <0.50 < < 0.50 0.50 0.50 0.50 0.50 0.50 Equipment Equipment Equipment Equipment Equipment Equipment Equipment Blank Blank Blank Blank Blank Blank Blank -- =s -- — __ -- Notes: < — analyte concentration is less than reference laboratory reporting limit J - analyte detected less than the reporting limit but greater than or equal to the method detection limit and the concentration is an approximate value_ B - an a lyte detected in method blank * - LCS or LCVSD is outside acceptance limits m01L — milligrams per liter TCLP Toxicity Characteristic Leaching Procedure ft — feet GE1 Consultants, Inc. Sample Results 13-5 NORTH CAMPUS ARR SOIL SAMPLING OCTOBER 2016 4. Conclusions The fifth annual soil sampling occurred in October 2017 within the Low Permeable Barrier at the City of Aurora North Campus Aquifer Recharge and Recovery Site A. Soil samples were collected in the same locations as previous years and were analyzed for TCLP concentrations of RCRA 8 metals to evaluate data trends and assess the possible accumulation of these metals in the soil. All ten samples were collected at the target depth intervals established in 2012 or within one foot of the target depth interval. Analytical results indicate that Cr was detected in nine out of ten samples, however, the results were all qualified as `J' meaning the concentration was less than the reporting limit but greater than or equal to the method detection limit and the concentration is an approximate value. No other metals were detected at TCLP concentrations above the reporting limit. All detected concentrations were well below the TCLP screening level published by the EPA. In general, the concentration of detected metals was similar to the baseline sampling event conducted in 2012 and in the five consecutive years of sampling which began in 2013. A statistical analysis was not performed due to the low levels of metals detected and the laboratory qualifiers indicating that the values are approximate. Given the low levels of metals detected, and the generally similar concentrations this year compared to last year, GEI concludes that TCLP R. 8 metals are not accumulating in soils within the LPB at the Site and recommends moving to a five-year sampling interval as allowed in the USR-1582 permit and subsequent approved sampling plan. The next sampling event is scheduled for 2022. GEI k. 1fa alt ar,1 Conclusions 14-1 NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 5. References CH2M HILL (2012). "Soil Sampling and. Monitoring Summary Report," Prepared for City of Aurora, North Campus Aquifer Recharge and Recovery Site. Fort Lupton, Colorado, May. GEI Consultants, Inc. (2013). "Soil Sampling and Monitoring Work Plan," Prepared for City of Aurora, North Campus Aquifer Recharge and Recovery Site. Fort Lupton, Colorado, September. GEI Consultants, Inc. (2017). "Soil Sampling and Monitoring Work Plan," Prepared for City of Aurora, North Campus Aquifer Recharge and Recovery Site. Fort Lupton, Colorado, September. Weld County Planning Commission, Resolution U SIR 1 82 City of Aurora, Site Specific Development Plan and Special Review Permit for a Major Facility of a Public Utility (Water Resource Project — Aquifer, Recharge and Recovery) In the A (Agricultural) Zone District. GEI References 15-1 NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 Appendix A Boring Logs G E I contuolanu, Boring Logs I Appendix A 0 Ui CL 0 mat CL JI LTL z i3 0 Ca 0 cia 0 cso C� Yr 1 -- BORING INFORMATION STATION: OFFSET: BORING GROUND SURFACE EL. (N): 4931:31 DATE START/END: 10/12/2017 a 10`1212017 VERTICAL DATUM: DRILLING COMPANY: Dakota Drilling ARRA TOTAL DEPTH (ft): 16.0 DRILLER NAME: Rook — LOGGED BY: ALM RIG TYPE: PAGE 1 of 1 — DRILLING INFORMATION HAMMER TYPE: CASING I,D./0.D.: NA/ NA CORE BARREL TYPE: _ AUGER I.0./Q.D.: _ NA / 3.5 inch DRILL ROD 0.D.: CORE BARREL I,D/0.D: NA / NA DRILLING METHOD: Direct Push WATER LEVEL DEPTHS (ft): 12.0 ABBREVIATIONS: Pen a Penetration Rec = Recovery RQD = Rock = Length R = Weight '+1 ?H = Weight Length S = Split Spoon Sample Qp = Pocket Penetrometer Strength NA, NM = Not Applicable, Length C = Core Sample Sv = Pocket Torv+ane: Shy Strength flaws per 6 in, 140 Quality Designation U - Undisturbed Sample LL = Liquid brill of Sound Cores>4 in / Pen s% SC = Sonic Core pt = Piasltciitp� Index inches to drive of Rods DP - Direct Push Sample PIP = Pho:oiq tza'tion Detector split spoon ssrnpler of Hammer HSA = Hollow -Stem Auger 1 WO D = Inside Diameter/Outside Diameter OVM = Organic -lb hammer inch Vapor Not Measured failing -(!.d_ Meter Sample Information Graphic Log Elev. (ft) Depth (ft) Sample No. Depth Pen./ Rec. (in) I Blows per f'i in. or ROD Drilling Remarks! Field Test Data Soil and Rock Description -- - [4,930-- S1 0 to 4 48/18 0 - BA ft: SANDY LEAN CLAY WITH GRAVEL: 50% lean clay, 35% f -c sand, 15% gravel, dark brown, moist. (CL) 52 t 48/24 r 5 B S3 8 48/24 to 12 P:.rZft . .�• ::,'> .•r ''Si T . O flee 'I'S W 8 4 - 12 IDELY GRADED SAND WITH GRAVEL: 80% f -c sand, 20°%a gravel up to 1/4 inch, light brown, moist. (SW) 9120 _ 10 •!. S. a ass a a •. • MO a r . I MIS Y , a • b . IF . . I •S e. - CMS :sr•.:. 15 S4 12 16 48/0 I c • l I; j �! S4 at 12 ft No Recovery - Rock stuck in tip of sampler, wet.to Switch to Auger. ■. ! — 16 Sample Collected �'•4 S8 to 18 24124 ARR-1-SO-1617-101217 . ' - 12 0 - 18 0 feet WIDELY GRADED GRAVEL WITH SILT: 70% gravel, 20% red -brown, ! coarse sand, 1 D �o fines, wet (OW -GM) _— 20 Bottom of boring at depth 16 ft 4910 — NOTES: PROJECT NAME: North Campus AFAR Soil Samplinc CITY/STATE: Fort Lupton, CO GEI PROJECT NUMBER: 1703410 Consultants r w 0 UTJ ale r rrN�� 4.40 V• 1M. y CE CD tie BORING INFORMATION BORING ARR-1 O PAGE 1 of I STATION; OFFSET: GROUND SURFACE EL. (ft): 4916 2 DATE START/END: 10/12/2017 - 10/1212017 VERTICAL DATUM; DRILLING COMPANY: Dakota Drilling TOTAL DEPTH (ft): 20.0 DRILLER NAME: Rock LOGGED BY: ALM RIG TYPE: DRILLING INFORMATION HAMMER TYPE: CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: AUGER I•DJO. D, : NA / 3.5 inch DRILL ROD 0.D.: CORE BARREL I. D)O.D: NA / NA DRILLING METHOD; Direct Push WATER LEVEL DEPTHS (ft): V18 S 0 ABBREVIATIONS: Pert = Penetration Length S = Split Spoon Sample Rec = Recovery Length C = Core Sample ROD = Rock Quality Designation U = Undisturbed Sample = Length of Sound Cores}4 in / Pen ,% SC = Sonic Core WOR = Weight of Rods DP = Direct Push Sample WON = Weight of Hammer HSA = Hollow -Stem Auger Op = Pocket Penetrometer Strength NA, NM = Not Applicable, Sv = Pocket Tarvario Shear Strength Stows per S in 140 LL = Liquid Lineal Oi inches la drive P1 = Ptasticlity Index PIC = Photcdonizatior Detedor splak spoon sampler I D /OD = Inside Diameter/Outside Diameter OVM = Organic Not Measured -lb hammer falling : 2-i nets-O.D. Vapor Meter Elev. (ft) DepthDrilling (ft) Sample Information Graphic Log and Rock Description Sample No. p Depth Pen./ Rec. (in) BlowsSoil per 6 in. or ROD Remarks/ Field Test Data _ S1 0 to 4 48/17 ' \ f iu rY Switch J}. Augers Sample Collected ARR-14-SO-192ig-101217 0 - 4 ft SILT: 80% silt, 20% fine - medium sand, dark brown, moist, trace gravel up to 1/2 inch. (ML) .910— S2 4 to 8 48141 rer8 //de , • . • • 0 A 4 - 8 ft SAND VV1TH SILT: 90% fine sand, 10% silt, light brawn, moist (SP-SINA) S S3 a to 12 48/24 - 14 ft: CLAY: 90 ► clay, 10% fine sand, brown, moist (CL) 10 1 15 �l'�y 1('�, (/'�) Y'V Y S4 12 to 16 48/36 14 - 15 ft GRAVEL WITH SAND: -70% gravel up to 3/4 inch, —30% fine - coarse sand, yellow brown, wet_ (G :e: i • i a•F°.I . . ° 4 r4 .. . a a' .° a •+ r5 r4 ■ , ■ FYI ■ ■ ■ 4 at V Sal . . . . r *.'.. • ■ MIS I I , ■ . • 4 • ■' ••• r . . r ° a V .• • Gig • a°a° Out :.:lie 15 - 20 ft: SAND WITH GRAVEL: 70% medium - coarse sand, 30% gravel up to 3/4 inch, light brown, wet, (SW) 20 S5 16 to 2t 48148 Bottom of boring at depth 20 ft NOTES: PROJECT NAME: North Campus ARR Soil Samplini CITY/STATE: Fort Lupton, CO GE I PROJECT NUMBER: 1703410 Consultants (Ir t9 sr — a_ �u� .'i w 0 2 i cin Ct Lit 0 BORING INFORMATION STATION: OFFSET: BORING GROUND SURFACE EL, (It): 496218 DATE START/END: 10/12/2017 -10112/2017 - VERTtCAL DATUM: DRILLING COMPANY: Dakota Drilling ,I RR•2 TOTAL DEPTH (ftp: 24 0 DRILLER NAME: Rock LOGGED BY: ALM RIG TYPE: PAGE 1 1 _ of DRILLJNG INFORMATION HAMMER TYPE: CASING I.D.JO.D.: NA/ NA CORE BARREL TYPE; AUGER I.D.10.D,: NA / 3.5 inch - DRILL ROD G.D.: CORE BARREL I.D/O.D: NA/ NA DRILLING METHOD: Direct Push WATER LEVEL DEPTHS (ft.); Not rnoasurod ABBREVIATIONS: Pen = Penetration Length S = Split Spoon Sample Qp Rec = Recovery} Length C = Care Sample Sv RQD = Rock Quality Designation U = Undisturbed Sample Li, = Length of Sound Cores>4 in I Pen ,% SC = Sonic Core PI WOR = Weight of Rods DP = Direct Push Sample PID H = Weight of Hammer HSA T Hollow -Stern Auger I D = Pocket Penetrometer Strength NA, NM = Not = Packet Tommie Shear Strength Sys ,per 6 in, = Uquid Limil 30 inches to drive = Plasticity index = Phcloionization Cetectcr split spoon serfpier. 1G D = Inside Diameter/Outside Diameter OVM = Organic Applicable, Not Measured 140 -lb harnmerfalling a 2-i.nch.O. D Vapor Meter Sample Information Drilling Remarks! Field Test Data Graphic Log Soil and Rock Description Elev. Depth Sample No. Depth ft Pena e,.. (in) Blows rs per 6 in. or ROD m , ' if j}jjjjr/ A ' ( 7irier Si at 1 ft Rock stuck in core barrel 0 - 750% ft SANDY LEAN CLAY 35% f -c sand, 15% gravel, dark Switch to Auger WITH GRAVEL: ''EL: lean clay, brown, moist (CL) S1 to 12112 Switch to Augers ' Sample le collected ARR-2-S0-2324-101217-W�: 1 '960 32 1 to 48 5 5 T- 10 83 5 to 10 60 .••/... 0, • :•:•:• r a • 4 • r • i • 4 • N PTV - •a 4 ••t,r r ■ ■ t s t ■ • • .+■;n« lid. 4*•t4 I. 4 I I' it M II IS e' 4 } ■ ■ . .: •i • a ■ ate*r 4 4 P ■'.*• 'a' •.„,,1.r .-a •1 { r • 4 s 4 a+•.■r a i ■ . i , 4 }• a 4 , t r r . • •. _. 15_0 - .* y a4Y i. 4 • 4 stilt r r • ■ ■ • r.,. 4 a an • • •r {1 . I 4 4 t e ••p 1, i i d a 6 { • r . N ■ 4 1 rate .•i_a•• • 4•t• r . r i 4 a t ■ e • 4 i N • . t■#. . • 1 4 sae 4■ •4 0• • a a t • ■ • •4�1 ,,•,4141 a ■ r 54 r a ... • . ■ea::":. a • 4 ••• III • 4 • 1t.{ .• + a 4 i • T i r • { 11 • II t { • •`.•. 7' - 24 Th WIDELY GRADED SAND: 90% f -c sand 10% gravel, brown, moist (SW) , 1 I �j ,,`�, _ 34 10 4J 15 60 18 $6 16 �} 20 640 I 9�a 20 56 20 t• +^�� 25 - 60 - Bottom of boring at depth 24 ft- NOTES: PROJECT NAME: North Campus ARR Soil Sarnplin{ • CITY/STATE: Fort Lupton, CO GEI PROJECT NUMBER: 1703410 Consultants A T T O til y1� 4F! LL C tr L ars V! m BORING INFORMATION BORING A RR -3 PAGE 1 of 1 STATION: OFFSET: GROUND SURFACE EL. (ft): 4921.12 DATE START/END: 10/12/2017 -18112/2017 VERTICAL DATUM: DRILLING COMPANY: Dakota Drilling TOTAL DEPTH (ft): 24.0 DRILLER NAME: Rock LOGGED BY: ALM RIG TYPE: DRILLING IN FORMATION HAMMER TYPE: CASING I•DitO.D.: NA/ NA CORE BARREL TYPE: AUGER I,D.JG. D•: NA 13 5 inch DRILL ROD O.D.: CORE BARREL I, D1O•D: NA 1 NA DRILLING METHOD: Direct Push i WATER LEVEL DEPTHS (ft): a 9_a ABBREVIATIONS: Pen. Rec. ROD V'+OR WOH = Penetration ≥ Recovery - Rock = Length = Weight - Weight Length Quality of Sound of of Length Designation Cores>4 Rods Hammer S = Split Spoon Sample Op C = Core Sample 5v U = Undisturbed Sample LL in / Pan ,% SC = Sonic Core PI DP = Direct Push Sample P'IO HSA = Hollow -Stem Auger I = Packet = Pocket = Liquid = Plegicity = PhotoionizaIion D.1O 0 - Penetrometer Torvare Limit Index Inside Strength NA, NM = Not Shear Strength Blows peat 8 in 30 inches to chye Detector split spo n.sampler*. Diameter/Outside Diameter OVM - Organic Applicable, 14D -lb a 2-inch•O•D. Vapor N©t Measured hammer falling Meter Elea. Depth Sample Information Drilling Remarks/ Field Test Data IGraphic Log rilpti ors Soil I and Rock Description Sample N a� Depth PenJ Rec. (in) Blows per 6 irt. or ROD 1 5tv 48/36 1 ,Ulfitch IVI4t11��7ir Samplecllectet� ARR-3-S tYuers• - 324-101 1 ::•:4a• ' 010% 0 It; 0 .. 6 ft: LEAN CLAY WITH SAND: 70% clay, 20% f -c sand, gravel up to 3/4 inch, dark brown, moist (CL) 25 tc 48140 1 a 6-76 ft' coarse sand, yellowish WIDELY 20% gravel brown, wet (SW) up to 114 inch, 80% trace organic,, - ::::: •••••::•14 r p•. F••i•• sae.• VI ` r• I I. :7221:::: i1Y Fa . i e .'i•M f , •2i lip J w e I i n ••` •e - •••• •i ■ r :■:•;■ ir•?.r t ra+ar• 7�;:•y• * f Ute ,,;4 e • e r no 51 4 • i • t •CIS SON . e i S . eat i . et. •••y a r • w `4`p a •!•M• • • ■ e ea f ■'• St. • r ■ • a ■�i Wag 4 Salt . 6:4;• rri■ s: .. : e .:'■ •• n J g w • ill "II » • ■ t i f r • •e a : . » •r. O • • 4 i r" r 44' i°. �i e • } • r e 5 e i e e i i r II i . i • • • e ■ • i • a e. e ■ • •. S 7.5 - 8 brown ft: SANDY mottling„ SILT u70Q silt, --3O% fine sand, gray with moist. (ML) S3 1 8 I 4813 8 - 24 ft WIDELY GRADED SAND 1 1TH GRAVEL: --70%s m -coarse sand, -30% gravel up to 3/4 inch, trace fine sand, yellowish brown, wet. (SW) 15 4910 sr- �� *{� LJ L� s — 20 - /y 4900 -C �r j _ SS 2 to 24 24 Bottom of boring at depth 24 ft NOTES: PROJECT NAME: North Campus ARR Soir CITY/STATE: Fort Lupton, CO Sampling --��, GE! PROJECT NUMBER: 1703410 Consultants GI NT FILE GPJ GF! ClTA `t`FLIP{ ATP' flit 11/9117 BORING INFORMATION STATION; GROUND SURFACE EL. (ft); 4923.47 VERTICAL DATUM: TOTAL DEPTH (ft): 32.0 LOGGED BY; ALM OFFSET: DATE STA►R_TIEND: 10/12/2017 - 10/12/2017 DRILLING COMPANY: Dakota Drilling DRILLER NAME: Rock RIG TYPE: BORING ARR-4 PAGE 1 of 2 DRILLING INFORMATION HAMMER TYPE: AUGER IID.JO. D.: NA 13.5 inch DRILLING METHOD; Direct Push WATER LEVEL DEPTHS (ft): SI 4.0 CASING I.D./O.D.: NA1 NA DRILL ROD O.D.: CORE BARREL TYPE: CORE BARREL I.DJO D; NA / NA ABBREVIATIONS: Pen - Penetration Length Rec. = Recovery Length ROD = Rock Quality Designation = Length of Sound Cores>4 in I Pen ,% WOR = Weight of Rods WOH = Weight of Hammer S = Split Spoon Sample C = Care Sample U = Undisturbed Sample SC = Sonic Core OP = Direct Rush Sample HSA = Hollow -Stem Auger Qp = Pocket Penetrometer Strength NA, NM = Nat Applicable, Not Measured Sv = Pocket Torvane Shear Strength Slows per 6 in .: 140 -lb hammer falling LL = Liquid Lirnil 30 inches to drive a 2 -inch -0 O PI = Plasticity Index PI D = Photoianizataon Detector split spoon sampler. I D IO D = Inside Diameter/Outside Diameter QVIVr = Organic Vapor Meter Elev, (ft) 920 910 . 900 ^ Depth (ft) 6 10 15 20 Sample Information Sample No. S1 S2 S3 S4 55 Depth (ft) 0 to 4 4 to 9 9 to 14 14 to 19 19 to 24 Peen./ Rec. (in) 48/0 60 60 60 60 Blows per 6 in. or ROD Drilling Remarks/ Field Test Data Hole Collapse Switch to Augers NOTES: J 11 CD • re It ::•. • •0 • 1•• • /! 4 • I. • 4 4 . ••• • ,, H.• • r • • • 4 • 1 4. ., • • : s 4 i .4 1 f It • • 4 4• /F • T • 1 t it • ■ • 6 • • ■ 4 • 6 • • ■ 4 • !'_• • ■ -/: ■ • ■ • a & i ••• 1•• • • 4 1 • ■ • • . • ' • , • • • . ■ 1 • • • Soil and Rock Description 0 - 4 ft: SANDY SILT: - 50% silt, 40% fine - medium sand, *v10°/'© coarse sand, dark brown_ (ML) 4 - 10 ft: WIDELY GRADED SAND WITH GRAVEL: .70% medium -: coarse sand, '-30% gravel up to 1 /2 inch, yellowish brown, wet . (SW) 10 - *6 Ft: SANDY SILT: 70% silt, 30% fine sand, trace gravel, €gray -brown, wet. (ML) 16 - 32 ft. WIDELY GRADED GRAVEL: 90% gravel up to 3/4 inch, 10% coarse sand, yellowish brown, wet (G PROJECT NAME: North Campus ARR Soil Samplinj CITY/STATE: Fort Lupton, CO +GE I PROJECT NUMBER: 1703410 GE Consultants T ©/n 11V WLL w C9 w c. C5 0 -J n_ to st d to re uu STATION: OFFSET: BORING ARR-4 PAGE 2 of 2 GROUND SURFACE EL. CM: 4923 A7 DATE START/END: 10/12/2017 -10/12/2017 VERTICAL DATUM: DRILLING COMPANY: Dakota Drilling Elev. (f) Depth (if) Sample Information Drilling Remarks/ Test Data Graphic Log Soil and Rock Description Sample No. . Depth (ft) Pen./ F e�c, (in) Blows per 6in.Field or RQD 4 ` $6 24 29 60 Sample collected ARR-4-SO-3132-101211 1 ll o .,t 'I is. I it '0 I h+ i• It.tii 241 Ill it. !l, s� R I M bl AI 25 30 S7 28 to 32 36 35 nilLec Bottom of boring at depth 32 ft. r I 4880 40 45 4870 -- 50 55 NOTES: PROJECT NAME: North Campus ARR Soil Samplinl LIII CITY/STATE: Fort Lupton, CO GE I PROJECT NUMBER: 1703410 Consultants a CD 171 BORING INFORMATION STATION: OFFSET; BORING GROUND SURFACE EL. tft): 4939.35 DATE START/END: 10112/2017 -10/1212017 VERTICAL DATUM: DRILLING COMPANY; Drilling ARR-5 ,Dakota TOTAL DEPTH (t): 30.0 DRILLER NAME: Rock _ LOGGED BY: ALM RIG TYPE: PAGE 1 2 of DRILLING INFORMATION HAMMER TYPE: CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: AUGER I.D./O.D.: NA 13,5 inch DRILL ROD O.D.: CORE BARREL I.D/O.D: NA / NA DRILLING METHOD: Direct Push i WATER LEVEL DEPTHS (ft): V 6 CI ABBREVIATIONS: Pen = Penetration Length S = Split Spoon Sample Op = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured Rae = Recovery Length C = Core Sample Sv = Pocket Torvans Shear Strength Blows per 6 in . 140 -lb hammer failing RQ© = Rock Quality Designation U = Undisturbed Sample LL = Liquid Limit = Length of Sound Cares+}4 in I Pen ,% SC = Sonic Care PI = Plasticity Index 30 inches to drive a -iron -f3 D ' OR = Weight of Rods OP -= Direct Push Sample PICT = Photc onization Detector split spoon sampler. WOH = Weight of Hammer HSA = Haliaw-Stern Auger I D IO D = Inside Diameter/Outside Diameter OVM = Organic Vapor Meter Sample Information Drilling Remarks/ Field Test C+R# Graphic Log Soil and Rock Descriptionho Elev. (ft) Depth (ft) Sample . Depth (eft) Pena Rea. (in) Blows perin. or RQD 1 + 0d� po; 9 0 - 6 ft: LEAN CLAY WITH SAND: 85% clay, 16% fine - medium sand, trace coarse sand, dark brown, moist. (CL) s r_ 81 D to 4 48/12 1*}l**•fir. �41►+Ft•** i4�**;"4t ::4#'�#*'+ stow :•44.+4 — — e++. 82��/ it o rrefy6Y LM s - 8 k.:„...„, 1.� ,* `4 0 14.1 Mt 44+F4 Mir **}'�*" e*+�#;+0 +rime t .�*4 4*A ?�.** ++, e•e• M. ;+.+l*+*. ,+f� ik Otte fripAik ifilloes *4.11 Mir e t • to 44Ft+++ .+ k# 4,#• *" e }¢:•+* *4i} 4#ai :4{•#*k+41aii* 4 • •*+ +4+4t e e 4 # , 44,049 10-041— il ,0 *• .4..1' i+i444i 'IonWet +.+ ++ l .. #+++#+ 4es4 • ++f+sir Me M**�4 + #+4+F bett *Er tihi r►*• • •• *4�F.� #,F#_ t+++t+,: t*+t`+## �#*fit+#•F +a+ • . not- -•.vb.- dress tifrot iseee - 6 -1 S ft: Bentonite clay (previous backfill) occasional lease fine grained e.d sand, orange brown, wet141 of _ raj �y _. 4930 tO 1 2 48126 — 10 - - — S4 12 to. 16 48/26 ° - 15 _ — 4920 S5 16 lb*e 48/6 — 20 4— - ,- $620 to 24 �j © rr 'i 8 NOTES: PROJECT NAME: North Campus ARR Soil SamplinI DIT iSTATE: Fort Lupton, CO GEI PROJECT NUM = ER: 1703410 Consultants STATION: OFFSET: BORING ARR-5 PAGE GROUND SURFACE EL. (ft): 4939,35 DATE START/END: 10/12/2017 - 10/12/2017 VERTICAL DATUM; DRILLING COMPANY: Dakota Drilling Elev (ft) I Depth (ft) Drilling Remarks/ Field Test Data Graphic Log Soil and Rock Description Sample Information Sample No Depth Pen I Ree, (in) Blows per or . 6 in ROD 28 57 24 to 28 4810 ' Switch to Augers Sample collected ARR-5-SO-2930-101217 ! 24 - 30 it WIDELY gravel, 20% coarse GRADED GRAVEL WITH SAND: 80% sand, trace fines, brown, wet (GVV) 4910 — .- 30 SB - 28 to 30 24 I I Bottom of boring at depth 30 ft 35 4900 - I- - 40 — 45 .r 4890 — 50 —55 a NOTES: PROJECT NAME: North Campus ARR Soil Samplini L Fort Lupton, GEI PROJECT NUMt 1 G I - W W{� j�uu�tY end 1..1.. W k.1... 0 z C rr ci IL ct 9i Q C U7 a w BORING INFORMATION STATION: OFFSET; BORING GROUND SURFACE EL. (f): 4934_91 DATE START/END: 10/12/2017 - 10/12/2017 VERTICAL DATUM: DRILLING COMPANY; Dakota Drilling ARR6 TOTAL DEPTH (ft): 24.0 DRILLER NAME: Rock LOGGED BY: ALM RIG TYPE: PAGE 1 'I _ of DRILLING INFORMATION HAMMER TYPE: CASING IYD.IO.D.; NA/ NA CORE BARREL TYPE: AUGER 10./O.D.: NA / 3,5 inch _ DRILL ROD O.D.: CORE BARREL I.D/O.D: NA / NA DRILLING METHOD: Direct Push WATER LEVEL DEPTHS PM Not measured ABBREVIATIONS: Pen = Penetration Length S = Split Spoon Sample Qpl = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured Roc = Recovery Length C = Core Sample Sv = Pocket Torvane Shear Strength Blows per 6 infl: 140 -lb hammer falling RQD = Rock Quality Designation U = Undisturbed Sample LL = Liquid Limit 30 inches to drive a 2-inch.O D = Length of Sound Cores>4 in 1 Pen I% SC = Sonic Core PI = Plasticity Index AOR = Weight of Rods DP = Direct Push Sample PID = Photoionizalion Detector split spoon sampler WCH = Weight of Hammer HSA = Hollow -Stem Auger I D /0 D = Inside Diameter{Outside Diameter OVM = Organic Vapor Meter Graphic Log 1 Sample Information Eloul � Depth ft Sto almi Hop a+a th Pen.. Rec. (in) Blows s per 6 in. or ROD Drilling Remarks/ Field Test D8#a Soil and Rock Description Si 0 to 4 48 0 - 4 ft: SANDY SILT: 70% silt, 30% fine sand, dark brown, moist. (ML) ' 030 — 5 S2 4 48 r' 4 - 8 ft LEAN CLAY: 90% clay, 10% fine sand, dark brown, moist. + L 8 rY aY •1 83 8 to 12 8 - 9 ft SILT moist. (ML) WITH SAND: 75% silt, 25% fine sand, brown, 9 Probe refusal 9' S4 60 at Switch to Augers 10 to 14 L1920 -- 15 S5 14 to 60 19 - -v,“,--, Yt o..r r Y yl . r> IT Y• J:5 • . r._ . ..i err/ It V r 11n -:74!:',:s: nt o ..+ I f rn:f 18 - 24 gravel, ft: SAND WITH GRAVEL 90% coarse sand, 10°, brown, moist (SF) _ 56 19 tO 60 L 4 1 �,i b t�i r1Y. y 'tl fiats.' r .Y 20 ' I 24 Semple collected ARR-6-SO-2324-101217 Ic . P\i .t - •_ I :: 1Y¢.. . Y"1 r..lA1. nl °?— 0 ytt t ..� Y: IL :::f,:::: -;;.:4l Y1. i _iI. •• .... ..• Y � _ a .:-:.t.:::: Bottom of boring at depth 24 ft. NOTES: PROJECT NAME: North Campus ARR Soil Semplini 1. CITY/STATE; Fort Lupton, CO GEI PROJECT NUMBER: 1703410 Consultants N- wt. uJ 3 2 W I a. ai g Cc CO IX 5 Lii BORING IN FORMATION BORING A RR -7 PAGE E 1 of 1 STATION: OFFSET: GROUND SURFACE EL. (ft): 4931,82 DATE START/END: 10/12/2017 - 10/12/2017 VERTICAL DATUM: DRILLING COMPANY: Dakota Drilling TOTAL DEPTH 00: 20.0 DRILLER NAME: Rock LOGGED BY: ALM RIG TYPE: DRILLING INFORMATION HAMMER TYPE: CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: AUGER I.DJO.D.: NA 13.5 inch DRILL ROD O.D.: CORE BARREL I.0/0.D: NA / NA DRILLING METHOD; Direct Push WATER LEVEL DEPTHS (ft): V 7 0 ABBREVIATIONS: Pen Rec ROD th = Penetration Length S = Split Spoon Sample Qp = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured = Recovery Length C = Core Sample Sv = Podtel Toiwlers Shear Strength (Blows per $ in . 140 -lb hemmer falling = Rock Quality Designatirxi U = Undisturbed Sample LL j LAW Unlit t 30 'Inches to drive a 2 -inch -0 0, = Length of Sound Cores>4 in ! Pen ,36 SC = Sonic Core Pi = Plasticity lydex R = Weight of Rods DP = Direct Push Sample RD = Pholcionizaban Detector spill spoon sampler H = Weight of Hammer HSA = Hollow -Stem Auger I D /0 0 = Inside Diameter/Outside Diameter CDVM = Organic Vapor Meter Elev. . (ft) Depth (ft) Sample Information Drilling Remarks/ !Field Test Data - a 0 so oil and Roc Description Sample No. Depth ft Pen./ Rec. (in) Blows per in. or ROD �� — ISwitch a 5 51 r- 0 to 12/12 ' Probe refusal at 1 ft. tic to Augers Sample Collected ARR-ARR-7-50-1920-101217 0 - 4 ft: SILT VV1T11 SAND: 70% silt, 20% fine - medium sand, 10% coarse sand, trace gravel up to 112 inch, brown, moist.. (ML} 1 f 32 1 to 6 60 0': `: 1=. 9 r1._. 1 •'` Y -. wn + ` f'I i 1' ,.4 Iv 1 . �_ , u 0 w'1 :1 •11 pl� l 4 - 7 ft: SAND: 80% fine - medium sand, 20% fines, light brown, moist. (SP) 10 S3 to 60 4920 7- : .,_.s. 't•+i L _I 1 • , r I lu. r' r : e a a- 7 • I`w `vI II h_• I ° 3-4i ,:.: 3 •'r :;'sa._°• 'rr i. _ - • w 4 . r 3,- -- �__`,.e,_ _ ‘t y•i °/-0..,.. 'f r, i, '.I,u .r wliIv Y i ,. j'4 ==' wl':•::+ 7 -10 ft: SAND: 90% medium sand, 5% coarse sand, 5% fine sand, light brown, moist, (SP) 15 10 - 20 ft: SAND WITH GRAVEL: 70% medium - coarse sand, 30% gravel up to 1/2 inch, reddish brown, wet. (S 54 11 t' 16 60 — 20 a 55 t6 20 48 - 4910- Bottom of boring at depth 20 ft. • a 1 NOTES: PROJECT NAME: North Campus ARR Soil Samplint ,r- CITY/STATE: Fort Lupton, CO GEt PROJECT NUMBER: 1703410 Consultants I- a a f ri J (15 CLt ff� \-f 4.I [:1 CO O1 BORING INFORMATION STATION: GROUND SURFACE ELa (ft): 428.37 VERTICAL DATUM: TOTAL DEPTH (ft): 28.0 LOGGED BY; ALM OFFSET: DATE START/END: 10/12/2017 -110/12/2017 DRILLING COMPANY: Dakota D rill inc_ DRILLER NAME: Rock RIG TYPE: BORING ARR-8 PAGE 1 of 2 DRILLING INFORMATION HAMMER TYPE; AUGER I•D.1O.D.: NA 13 5 inch DRILLING METHOD: Direct Push WATER LEVEL DEPTHS (ft): V 9.0 CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: DRILL ROD O.Q.: CORE BARREL IID/ODD: NA / NA ABBREVIATIONS: Pen = Penetration Length Rec = Recovery Length ROD = Rock Quality Designation a. Length of Sound Cares>4 in / Pen .% WOR = Weight of Rods WOH = Weight of Hammer S = Split Spoon Sample C = Core Sample U = Undisturbed Sample SC fiot Core DP = Direct Push Sample HSA = Hollow -Stem Auger Op = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured Sv = Pocket T0rv.arse Shear Strength Blows per 8 in. ,a0 -lb rammer falling IL = Liquid Limit 30 inches to drive a 2-i rich -0 D. PI : Plasticity Index PID = Pholodoiim Lion Detector split spoon sampler' I a 10 D = Inside Diameter/Outside Diameter OVM = Organic Vapor Meter Elea„ (ft) • 920 4910 Depth (ft) 5 10 15 20 Sample Information Sample No Si 82 S3 64 S5 $6 Depth (ft) 0 to 4 4 to 8 14 to 19 19 to 24 Pen] Rec. (in) 48/26 48125 12112 60 60 60 Blows per S in. or RQD Drilling Remarks/ Field Test Data Recovery approximately 24", did not stay in sleeve S3 recoved material from previous push. Probe refusal at 9' Switch to Augers NOTES: .. . _ ,• F•t a . • ! r • ... • P4 *•'!'■• P . ■ •• i-•• • •a a P ! ■ • ■ ■ • 1 ! 4 • • 1 I. S. is • i 1'• I 1 •a •. 1 ■ te1• 4 I • 4 • i i ■ • • I • • • i 1 ••■ •• t • ■ • 1 •try _P•••• ' J•• • • • ■ fi■ r'••• 4 • P P • • •••• i 411 YE ■ • ■ i • r O a• .i•-P _ I IS P . P i - e• ■ • • • P • • Tr M■`. • • • i i • • • S 4 • Y S • i r ■ • t • ■ '.'•.• ▪ r _ `= 1 ' s'a'le II a i P `r■• • • • P • P I 4 • • • P $ 4 i } • ■ • a Sa I i • 1 II ' I 11 • 4 • • 4. ••r a• 4 a I e••.6 • a 4 • • t ar•• • •1 a , ■ ■1 • P • • ■ 1 ! r e •• P ' • ' 01 • Sr • • • 4 4 4 • i. • ••ia. • • 4 I r ••1■• + e • • • • • 4 It e if • t. a • • e `• 1.•• • ▪ Y • Soil and Rock Description 0 - 4 ft SANDY SILT: 70% silt, 20% fine sand, 10% grayet, dark brown, moist. (ML) 4 - sit: SILTY SAND OATH GRAVEL: 50% fine - coarse sand, 30% gravel, 20% silt, brown, moist. (61 410 B - 9.5 ft: LEAN CLAY: 90% clay, 10% fine sand, dark grey, wet. (CL) 9.5 - 28 ft SAND: 90% medium - coarse sand, 10% gravel, brown, wet (SW) PROJECT NAME; North Campus ARR Soil Sampiinc CITY /STATE: Fort Lupton, CO GEl PROJECT NUMBER: 1703410 G ElConsultants gira - la - C U) 2 w I- cC w - Q a w a a w. LL H z O CD a G• Lie (405 ent H l BORING ARR-8 PAGE 2 of 2 STATION: GROUND VERTICAL OFFSET: SURFACE DATUM: EL, (ft): 4928.37 _ DATE STARTIEND: COMPANY: 10/12/2017 - 10/12/2017 DRILLING Dakota Drilling Sample in orrnation Elev. Depth Pere. CIO Blows Drilling Remarks/ Graphic L{ (to (to Sample No_ Depth (ft) Rec (in) per 6 in. or ROD Field Test Data Soil and Rock Description • ■ 4 LIE ... al • • • I { i • • • ,. - 25 .•�,••.•, l•• • • i 1 •■ S7 25 i� I 36 28 Sample Collected •,•�.• ••• , :+ a • ARR-8-SD-2628-101217 :;:;:: %Isl. i N a f 4@ r ■aI a • • c I 1 1 It • • r 4900— Bottom of boring at depth 28 ft. 30 890 35 I r 40 45 4880 -- e ,___. 50 55 NOTES: PROJECT CITY/STATE: NAME: North Campus AIR Soil Samplinc Fort Lupton, CO L GEI PROJECT NUMBER: 1703410 Consultants BORING INFORMATION STATION: OFFSET: BORING GROUND SURFACE EL. (ft): 4931 07 DATE START/END: 1 011 2/201 7 - 1p112/20117 VERTICAL DATUM: DRILLING COMPANY: Dakota Drilling ARR-9 TOTAL DEPTH (ft): 20.0 DRILLER NAME: Rack LOGGED BY: ALM RIG TYPE: "1 PAGE 1 of DRILLING INFORMATION HAMMER TYPE: CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: - AUGER I.D.iO. D.: NA / 3,5 inch _ DRILL ROD 0.0.: CORE BARREL I.D/G.D: NA / NA - DRILLING METHOD: Direct Push WATER LEVEL DEPTHS (ft): g 14.0 ABBREVIATIONS: Pen. = Penetration Length Roc. = Recovery Length RQD = Rock Quality Designation Length of Sound Coresn4 in! Pen WOR = Weight of Rods VVOH = Weight of Hammer S = Split Spoon Sample Qp C = Core Sample Sv U = Undisturbed Sample LL ,% SC = Sonic Core PI DP e Direct Push Sample RID= HSA = Hollow -Stem Auger I D = Pocket Penetrometer Strength NA, NM = Not Applicable, = Pocket Tedvane Si,oar Strength Blows per 6 in, 140 = Liquid Limit = Plasticity Index inches toiwe Phoolon nation Detector spiil swan senior KD a = inside Diameler/Outside Diameter OVM = Organic -lb hammer 2 ir�+ct, Vapor Not Measured falling 4 D Meter �raphi� Lag Sample Information Elev (ft) Depth (ft) Sample No, DepthFec. ( Pen./ (in) Blows per or in. ROD Drilling Remarks/ Field Test Datap aid and Rock Description 4930 S1 0 to 48/3 - ;, 4 - 4 5 ft: SILTY SAND: 50% fine - medium sand, 30% silt, 2D% coarse sand, occasionalgrave), brown, moist Shy 4 82 A 48/36 :- .: e 10 ' 4.5 - S ft SAND WITH SILT: 8D fine- medium sand, 10% silt, D 8,a4;sCFF r:I r):::. s 10% gravel up to 1/2 inch, light -brawn, moist. (SW -SIB) ■•1! ••• ■ar lS. • r ,. �f '• i Ii .` a . 4, ;c + a S3 t� 12 40/30 • .,•_. ■r 1 :. };�a ; ;•,.;ai s ; B • ■ r • 5• ■ • • + 8 - 20 ft: SAND WITH GRAVEL: 30% gravel up to 3/4 inch7, light 70% medium - coarse sand, brown, wet. (SW) 920 _ • , • 0 •• 1 � • • • • i a e1••• • :life:: ■ar,•, ■ + a ,ea•ae 1. 54 1 2 1.0• 48/10 dry••• ••i• • �.• P • ■i•r•'r a I. i •:a: ■ • ■ ■•■".ea it. 8::::::: Wet at 14 ft ----- - iy X11 a •r ■■r� •r•a••• S5 16 t�1. 20 a il Sample Collected . 1 • II i i i , 0 • ' ■a■ ■ :fa:: ■•• 1 P • •- 4 •.Si flier 4 ■ r ee �■ .5 • 4 ■ P • • ■Y•e•"• 3•b ."f. ■ • . R • i ••.•• M• "• a a } 20 .• • -- 4910 -- - Bottom of boring at depth 20 ft NOTES: PROJECT NAME: North Campus ARR Soil Sampiinr CITY/STATE: Fort Lupton, CO ,N, GEL PROJECT NUMBER: 1703410 consuitanks NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 Appendix B Laboratory Analytical Report GE I rat :•�t�.�E1i COn'UltinSS Laboratory Analytical Report I Appendix B *1 l * LINKS Review your project results through Total Access f Have a Question? aSkus The gistEX Visit us at: wwt.te s m _ _Kamm_ mm_ TestAmerica THE LEADER IN ENVIRONMENTAL TESTING ANALYTICAL REPORT TestAmerica Laboratories, Inc. TestAmerica Denver 4955 Yarrow Street Arvada, CO 80002 Tel: (303)736-0100 TestAmerica Job ID: 280-102326-1 Client Project/Site: Aurora Water North Campus oil For: GE' Consultants, Inc. 4601 DTC Blvd. Suite 900 Denver, Colorado 80237 Attn: Tom Daigle 911)- 'N Authorized for release by: PM Jamie Ide, Project Manager I (303)736-0126 jamie.ide@testamericainc.com The test results in this report meet all 2003 NELAC and 2009 Tl' l requirements for accredited parameters, exceptions are noted in This report. This report may not be reproduced except in full, and with written approval from the laboratory.. For questions please contact the Project Manager at the eernall address or telephone number fisted on this page. This report has been electronically signed and authorized by the signatory Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. • s 7 9 Client: GEI Consultants, Inc. TestAmeri Job ID: 280-102326-1 Project/Site: Aurora Water North Campus Soils Table of Contents Cover Page . Table of Contents... Definitions ..... , Case Narrative . Detection Summary .. Method Summary.. ... Sample Summary. . Client Sample Results . . QC Sample Results.... QC Association .... . Chronicle Certification Summary . . Chain of Custody . Receipt Checklists . . . 4 a e r • a a • It • ■ • , 1 4 6 a {. ! ! 1 ! + 4} ! 4 14 i d i • a r • • • • • 99999 • • c I a a • • • s M :n • • • r. a• • i 1 . Y a } • a a • ■ • i « I • . I • 4 • • * P • C r 9 • , r e a • e • r r t • t , r • • • 4 .......... 2 3 4 6 8 9 10 15 19 22 26 27 29 TestAmerica Denver Page 2 of 29 10/26/2017 Definitions/Glossary Client: GEI Consultants, Inc. TestAmerica Job ID: 280-102326-1 Project/Site: Aurora Water North Campus Soils Qualifiers Metals Qualifier Qualifier Description B Compound was found in the blank and sample. Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value Glossary Abbreviation These commonly used abbreviations may or may not be present in this report. El Listed under the "D" column to designate that the result is reported on a dry weight basis �ioR Percent Recovery CFL Contains Free Liquid CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Oil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re -analysis, Re -extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) L0D Limit of Detection (DoD/DOE) LOO Limit of Quantitation (DoD/DOE) MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MIL Method Detection Limit ML Minimum Level (Dioxin) NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) PQL Practical Quantitation Limit QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RFD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TED Toxicity Equivalent Quotient (Dioxin) TestAmerica Denver Page 3 of 29 10/26/2017 Case Narrative Client: GPI Consultants, Inc. TestAmerica Job ID: 280-102326-1 Project/Site: Aurora Water North Campus Soils Job ID: 280-102326-1 Laboratory: TestAmerica Denver Narrative CASE NARRATIVE Client: GEI Consultants, Inc. Project: Aurora Water North Campus Soils Report Number: 280-102326-1 With the exceptions noted as flags or footnotes, standard analytical protocols were followed in the analysis of the samples and no problems were encountered or anomalies observed. In addition all laboratory quality control samples were within established control limits, with any exceptions noted below Each sample was analyzed to achieve the lowest possible reporting limit within the constraints of the method In some cases, due to interference or analytes present at high concentrations, samples were diluted. For diluted samples, the reporting limits are adjusted relative to the dilution required Calculations are performed before rounding to avoid round -off errors in calculated results All holding times were met and proper preservation noted for the methods performed on these samples, unless otherwise detailed in the individual sections below. RECEIPT The samples were received on 10/13/2017 11:57 AM; the samples arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was 11 30 C The requested Metals analysis does not require temperature preservation so the laboratory will proceed with the requested analysis unless instructed otherwise by the client. The client was notified on 10116/17. The Chain -of -Custody (COC) was incomplete as received. The field sampler's name is not present, but the COC has been relinquished by the client with a signature, date, and time. The samples were logged and the laboratory will proceed with the requested analysis unless instructed otherwise by the client. The client was notified on 10/16/17 The following samples were received at the laboratory without a sample collection time documented on the Chain of Custody (CDC): ARR-1-SO-1617-101217 (280-102326-1), ARR-2-SO-2324-1 01 21 7 (280-102326-2), ARR-3-SC-2324-101217 (280-102326-3), ARR-4-SO-8102-101217 (280-102326-4), ARR-b-SO-2930-101217 (280-102326-5), ARR-6-SO-2324-101217 (280-102326-6), ARR-7-SG-1920-101217 (280-102326-7), ARR-8-SG-2628-101217 (280-102326-8), ARR-8-SO-2628-101217MS (280-102826-8[MS]) AI R-8-SO-2628-101217MSD (280-102826-8(MSD]), ARR-9-SO-1920-101217 (280-102326-9), ARR-10-SG-1718-101217 (280-102826-10), FD -SO -101217 (280-102326-11) and EB-101217-01 (280-102326-12). Samples AIR -1-3O-1617-101217, ARR-3-SO-2324-101217, AI R -5 -SO -2930-101217, ARR-6-SG-2324-101217, ARR-7-SG-1920-101217, ARIA -8 -SO -2628-101217, ARR-8-SO-2628-101217MS, ARR-8-SO-2628-101217MSD, ARR-9-3O-1020-101217, ARR-10-SO-1718-101217, and EB-101217-01 were logged per sample collection times indictated on their container labels. The remaining samples did not have sample collection times on either the COG or their container labels; therefore, they were logged with a time of 00:00. The laboratory will proceed with the requested analysis unless instructed otherwise by the client. The client was notified on 10/16/17. TCLP METALS Samples AFAR -1 -SO -1617-101217 (280-102826-1), AFAR -2 -SO -2024-101217 (280-102826-2), ARR-3-SO-2324-101217 (280-102326-3), ARR-4-SG-3132-101217 (280-102326-4), ARR-0-So-2930-101217 (280-102826-5), ARR-6-SO-2024-101217 (280-102326-6), ARR-7-SO-1920-101217 (280-102326-7), ARR-8-SO-2628-101217 (280-102026-8), ARR-9-SO-1920-101217 (280-102326-9), ARR-10-SC-1718-101217 (280-102026-10), FD -SO -101217 (280-102026-11) and EB-101217-01 (280-102326-12) were analyzed for TCLP metals in accordance with EPA SW -846 Methods 1311/6010B. The samples were leached on 10/17/2017 and 10/18/2017, prepared on 10/19/2017 and 10/23/2017 and analyzed on 10/20/2017 and 10/23/2017. Barium was detected in method blank LB 280-391882/1-C at a level that was above the method detection limit but below the reporting limit The value should be considered an estimate, and has been flagged If the associated sample reported a result above the MDL and/or RL, the result has been flagged. Barium and Silver were detected in method blank LB3 280-391619/1-B at levels that were above the method detection limit but below the reporting limit. The values should be considered estimates, and have been flagged. If the associated sample reported a result above the MDL and/or RL, the result has been flagged. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. TestAmerica Denver Page 4 of 29 10/26/2017 Case Narrative Client: GEI Consultants, Inc. TestAmerica Job ID: 280-102326-1 Project/Site: Aurora Water North Campus Soils Job ID: 280-102326A (Continued) Laboratory: TestAmerica Denver (Continued) TCLP MERCURY Samples ARR-1-SO-1617-101217 (280-102326-1), ARR-2-SO-2324-101217 (280-102326-2), ARR-3-SO-2324-101217 (280-102326-3), ARR-4-SO-3132-101217 (280-102326-4), ARR-5-SO-2930-101217 (280-102326-5), ARR-6-SO-2324-101217 (280-102326-6), ARR-7 S 1920-101217 (280-102326-7), ARR-8-SO-2628-101217 (280-102326-8), ARR-9-SO-1020-131217 (280-102326-9), ARR-10-SO-1718-101217 (280-102326-13), FD -SO -101217 (280-102326-11) and ES -101217-01 (280-102326-12) were analyzed for TCLP mercury in accordance with EPA SW -846 Methods 131167470A. The samples were leached on 10/17/2017 and 1011812017, and prepared and analyzed on 10/19/2017 and 10/23/2017. No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. TestAmerica Denver Page 5 of 29 10/26/2017 a 9 10 cri 13 14 Detection Summary Client: GEI Consultants, Inc. Project/Site: Aurora Water North Campus Soils Client Sample ID: ARR-1- O-1617-101217 Analyte Barium Chromium Result Qualifier 0.20 JB 0 0054 J RL MDL Unit 10 0.0040 mgfL 0.50 0.0030 mg/L TestAmerica Job ID: 280-102326-1 Lab Sample ID: 280-102326-1 Dil Fac D Method 1 6010E 1 6010E Client Sample ID: ARIA -2 -SO -2324-101217 Analyte Barium Chromium Result Qualifier 0.16 J B 0.0037 J Client Sample ID: ARR-3- O-2324-101217 Analyte Barium Chromium Result Qualifier 023 J U 0,0036 J Client Sample ID: ARR-4-SO-3132-101217 Analyte Barium Result Qualifier 040 J B Client Sample ID: ARR-5-SO-2930-101217 Analyte Barium Chromium Result Qualifier 0.45 J B 0.0035 J Client Sample ID: AFT -6- O-2324-101217 Prep Type TCLP TCLP Lab Sample ID: 280-102326-2 RL MDL Unit 1.0 0,0040 mg/L 0.50 0.0030 mg/L RL 10 0.50 MDL Unit 0.0040 mg/L 0.0030 mg/L RI MDL Unit 10 0 0040 mg/L RL 1.0 0.50 MDL Unit 0.0040 mg/L 0.0030 rng/L Analyte Barium Chromium Result Qualifier 0.35 J B 0.0049 J Client Sample ID: ARR-7-5O.1920-101217 Analyte Barium Chromium Result Qualifier 0,30 J 0.0059 J Client Sample ID: ARR-8-SO-2628-101217 Dil Fac D Method 1 6010E 1 6010E Prep Type TCLP TCLP Lab Sample ID: 280-102326-3 Dil Fac D Method 1 6010B 1 6010B Prep Type TCLP TCLP Lab Sample I D : 280-102326-4 Dil Fac D Method Prep Type 1 6010E TCLP Lab Sample ID: 280-102326-5 RL MDL Unit 10 0.0040 rng/L 0 50 0.0030 mgfL RL 1.0 0 60 Dil Fac D Method 1 6010E l 6010E Prep Type TCLP TCLP Lab Sample ID: 280-102326-6 Dil Fac D Method 1 60108 1 60108 Prep Type TCLP TCLP MIX Unit 0.0040 mg/L 0 0030 mgt L Lab Sample ID: 280-102326-7 Dil Fac D Method 1 6010E 1 6010E Prep Type TCLP TCLP Lab Sample ID: 280-102326-8 Analyte Barium Chromium Result Qualifier 025 JB 0 0051 J RL 1.0 0 50 Client Sample ID: ARR-9- O-1920-101217 Analyte Barium Chromium Result Qualifier 0.063 J B 0 0033 J This Detection Summary does not include radiochemical test results RL 10 0.50 MDL Unit 0.0040 mg/L 0.0030 rng/L Dil Fac D Method 1 60108 1 6010E Prep Type TCLP TCLP MDL Unit 0 0040 mg/L 0.0030 mgfL Lab Sample ID: 280-102326-9 Dil Fac D Method 1 6010E 1 6010B Prep Type TCLP TCLP TestAmerica Denver Page 6 of 29 10/26/2017 Detection Summary Client: GEI Consultants, Inc. Project/Site: Aurora Water North Campus Soils Client Sample ID: ARR-10- o -1x'18-101217 Analyte Barium Chromium Result Qualifier 0.24 J8 0.0031 J Client Sample ID: FD -SO -101217 Analyte Barium Chromium Result Qualifier 0.48 J B 0.0033 J Client Sample ID: EB-101217-01 Analyte Arsenic Barium RL 1.0 0.50 MDL Unit TestAmerica Job ID: 280-102326-1 Lab Sample ID: 280-102326-10 0.0040 mg/L 0.0030 mg/L DII Fac D Method 1 6010E 1 60108 Result Qualifier 0.022 J 0.037 J B This Detection Summary does not include radiochemical test results. RL 1.0 0.50 MDL Unit Prep Type TCLP TCLP Lab Sample ID: 280-102326-11 0.0040 rrig/L 0.0030 rng/L DPI Fac D Method 1 — 601DB 1 60108 Prep Type TCLP TCLP Lab Sample ID: 280-102326-12 RL MDL Unit 0.50 1.0 0.022 mg/L 0.0040 rng/L Dil Fac D Method 1 6010E 1 60108 Prep Type TCLP TCLP TestAmerica Denver Page 7 of 29 10/26/2017 Method Summary Client: GE! Consultants, Inc. TestAmerica Job ID: 280-102326-1 Project/Site: Aurora Water North Campus Soils Method Method Description 601OB Metals (ICP) 7470A Mercury (CVAA) Protocol Laboratory S 848 TAL DEN BW846 TAL DEN Protocol References: SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates, Laboratory References: TAL DEN = TestAmerica Denver, 4955 Yarrow Street, Arvada, CO 80002, TEL (303)736-0100 TestAmerica Denver Page 8 of 29 10/26/2017 Sample Summary Client: GEI Consultants, Inc. Project/Site: Aurora Water North Campus Soils Lab Sample ID 280-102326-1 280-102326-2 280-102326-3 280-102326-4 280-102326-5 280-102326-6 280-102326-7 280-102326-8 280-102326-9 280-102326-10 280-102326-11 280-102326-12 Client Sample ID ARR-1-SO-1617-101217 ARR-2-SO-2324-101217 ARR-3-SO-2324-101217 AI R -4 -SO -3132-101217 ARR-5-SO-2930-101217 ARR-6- SO -2324-101217 AFT -7 -SO -1920-101217 AI R -B -SO -2028-101217 ARR-9-SC-1920-101217 ARR-10-SO-1718-101217 ED -SO -101217 FE -101217-01 Matrix Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Water TestAmerica Job I D : 280-102326-1 Collected 10/12/17 12:25 10/12/17 00:00 10/12/17 16:25 1 011 2/1 7 00:00 10/12/17 10:00 10/12/17 12:00 10112/17 14:32 10/12/17 15:21 10/12/17 11:01 10/12/17 06:35 10/12/17 00:00 10/12/17 14:24 Received 10/13117 11:57 10/13/17 11:57 10/13/17 11:57 10/13/17 11:57 10/13/17 11:57 10/13/17 11:57 10/13/17 11:57 10/13/17 11;57 10113/17 11:57 10/13/17 11:57 10/13/17 11:57 10/13/17 11:57 TestAmerica Denver Page 9 of 29 10/26/2017 Client Sample Results Client: GEI Consultants, Inc. Project/Site: Aurora Water North Campus Sails Method: 6010E - Metals (ICP) - TCLP Client Sample ID: ARR-1-SO-1617-101217 Date Collected: 10112/17 12:25 Date Received: 10/13/17 11:57 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Result Qualifier N D 0.29 JB N D 0.0054 J N D N D N a Client Sample ID: ARR-2-SO-2324-101217 Date Collected: 10/12/17 00:00 Date Received: 10/13/17 11:57 Analyte Arsenic Barium Cadrni urn Chromium Lead Selenium Silver Result Qualifier N D 0.16 JB N D 0.0037 J N D N D N D Client Sample ID: ARR-3-SO-2324-101217 Date Collected: 10/12/17 16:25 Date Received: 10113117 11:57 Anaiyte a iyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Result Qualifier N D 0.23 JB N D 0.0036 J ND ND N D Client Sample ID: ARR-4-SO-3132-101217 Date Collected: 10/12/17 00:00 Date Received: 10/13/17 11:57 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Result Qualifier ND 0,40 JB ND ND ND ND ND Client Sample ID: ARR 5 -SO -2930 101217 Date Collected: 10/12/17 10:00 Date Received: 10/13/17 11:57 Ana lyte Arsenic Barium Result Qualifier N D 0.45 JB RL 0.50 1 0 0.10 0.50 0.50 010 0.50 RL 0.50 1.0 0 10 0 50 0.50 0.10 0.50 RL 0,50 10 0.10 0.50 050 0.10 0,50 RL 0 50 1.0 0.10 0.50 0.50 0.10 0.50 RL 0 :50 1,0 MDL 0.022 0 0040 0.0020 0.0030 0 014 0032 0.0050 MDL 0.022 0,0040 0 0020 0 0030 0.014 0.032 0 0050 MDL 0.022 0.0040 0.0020 0.0030 0.014 0.032 0 0050 MDL 0.022 0 0040 0.0 020 0.0030 0014 0,032 0.0050 Unit mg/L mg/L mg/L mg/L mg/L nng/L mg/L Unit mg/L mg/L mg/L mgfL mg/L mg/L mg1L U nit mg/L mg/L mg/L mg/L mg/L mg/L mg/L Unit mg/L mg/L mg/L mg/L. mg/L mg/L mgfL MDL Unit 0 022 mg/L 0 0040 mg/L TestAmerica Job ID: 280-102326-1 Lab Sample ID: 280-102326-1 Matrix: Solid 0Prepared 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07;24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 Analyzed 10/23117 15:51 10/23117 15:51 10/23/17 15:51 10/23/17 15:51 10/23/17 15:51 10/23/17 15:51 10/23/17 15:51 Dil Fac 1 1 1 1 11 1 1 Lab Sample ID: 280-102325.2 Matrix: Solid D Prepared 10/23117 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10123117 07:24 10/23/17 07:24 Analyzed Dil Fac 10/23/17 15:54 10/23/17 15;54 10/23/17 15:54 10/23/17 15:54 10/23/17 15:54 10/23/17 15:54 10/23/17 07:24 10/23/17 15:54 Lab Sample ID: 280-102326-3 Matrix: Solid D Prepared 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10)23/17 07:24 10123/17 07:24 10/23/17 07:24 Analyzed 10/23/17 15:56 10/23/17 15:56 10/23/17 15:56 10/23/17 15:56 10/23/17 15:56 10/23/17 15:56 Dil Fac 1 1 1 1 1 10/23/17 07:24 10/23/17 15:56 1 Lab Sample ID: 280-102326-4 Matrix: Solid D Prepared 10/23/17 07:24 10/23/17 07:24 10/23)17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 Analyzed 10/23/17 15:59 10/23/17 15:59 10/23/17 15:59 10/23/17 15:59 10/23/17 15:59 10/23/f 7 15:59 Dil Fac 1 1 1 1 10/23/17 07:24 10/23/17 15:50 1 Lab Sample FD: 280-102326-5 Matrix: Solid D Prepared Analyzed Dil Fac 10/23/17 07:24 10/23/17 16:02 1 10123/17 07:24 10/23/17 16:02 1 TestAmerica Denver Page 10 of 29 10/26/2017 Client Sample Results Client: GEI Consultants, Inc. Project/Site: Aurora Water North Campus Soils Method: 6010B - Metals (ICP) - TCLP (Continued) Client Sample ID: A RR -5 -SO -2930 -101217 Date Collected: 10/12/17 10:00 Date Received: 10/13/17 11:57 Analyte Cadmium Chromium Lead Selenium Silver Result Qualifier ND 0.0035 J N D N D N D Client Sample ID: ARR-5 -SO-2324-101217 Date Collected: 10/12/17 12:00 Date Received: 10/13/17 11:57 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver • Result Qualifier N D 0.35 JB N D 0.0049 J ND ND ND Client Sample ID: ARR-7-SO-1920-101217 Date Collected: 10/12/17 14:32 Date Received: 10/13117 11:57 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Result Qualifier N D 0.38 B ND 0.0059 J N D N D ND Client Sample ID: ARR-8-SO-2628-101217 Date Collected: 10/12/17 15:21 Date Received: 10113/17 11:57 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Result Qualifier N D 0.25 JB N D 0.0051 J ND N D N D Client Sample ID: ARR-9-SO-1920-101217 Date Collected: 10/12/17 11:01 Date Received: 10/13/17 11:57 Analyto Arsenic Barium Cadmium Chromium Result Qualifier ND 0.063 J B N D 0.0033 J RL 0.10 0.50 0.50 0.10 050 RL 0 50 1 .0 010 0.50 0.50 0.10 050 RI 050 1.0 0 10 0 50 0 50 0 10 0.50 RL 0 50 10 010 0,50 0.50 0.10 050 RL 0.50 1.0 0 10 0 50 MDL Unit 0 0020 mg/L 0.0030 rng/L 0.014 mg/L 0 032 mg/L 0 0050 rng/L MDL Unit 0.022 mg/L 0 0040 mg/L 0 0020 mg/L 0.0030 rng/L 0.014 mg/L 0.032 mglL 0 005 mg/L MDL Unit 0 022 mg/L 0,0040 mg/L 0.0020 mg/L 0 0030 mg/L 0 014 mg/L 0.032 mg/L 0 0050 mg/L MDL 0.022 0 0040 0.0020 0.0030 0.014 0.032 0.0050 Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/L MDL Unit 0.022 mg/L 0 0040 mg/L 0 0020 mg/L 0.0030 mg/L TestAmerica Job ID: 280-102326-1 Lab Sample ID: 280-102326-5 Matrix: Solid D Prepared Analyzed Dil Fac 10/23/17 07:24 10/23/17 16:02 1 10/23/17 07:24 10123/17 16:02 1 10/23/17 07:24 10/23117 16:02 1 10123/17 07:24 10123/17 16:02 1 10/23/17 07:24 10123117 16:02 1 Lab Sample ID: 280-102326-6 Matrix: Solid D Prepared 10/2.: 3117 07:24 10/23117 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 Analyzed 10/23/17 16:17 10/23/17 16:17 10/23/17 16:17 10/23/17 16:17 10/23/17 16:17 10/23/17 16:17 10/23/17 07:24 10/23/17 16:17 Uil Fac Lab Safnple ID. 280-102326-7 Matrix: Solid D Prepared 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 Analyzed 10/23/17 16:20 10/23117 16:20 10/23117 16:20 10/23/17 16:20 10/23/17 16:20 10/23/17 16:20 10/23/17 07:24 10/23/17 16:20 ail Fac Lab Sample ID: 280-102326-8 Matrix: Solid Prepared 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 Analyzed 10/23/17 16:23 10/23/17 16:23 10/23/17 16:23 10/23/17 16:23 10/23/17 16:23 10/23/17 16:23 10123/17 16:23 Lab Sample ID: 280-102326-9 Matrix: Solid D Prepared Analyzed 10/23/17 07:24 10/23117 16:50 10/23/17 07:24 10/23/17 16:50 10/23/17 07:24 10/23/17 16:50 1 10/23/17 07:24 10/23117 16:50 1 DII Fac 1 1 TestAmerica Denver L 4 s Page 11 of 29 10126/20/7 Client Sample Results Client: GEI Consultants, Inc. Project/Site: Aurora Water North Campus Soils Method: 6010E - Metals (ICP) - Tel.!' (Continued) Client Sample ID: ARR-9-SO-1820-101217 Date Collected: 10/12/17 11:01 Date Received: 10/13/17 11:57 Analyte Lead Selenium Silver TestAmerica Job ID: 280-102326-1 Result Qualifier RL ND 0 50 NO 0•110 N D 050 Client Sample ID: ARR-10-SD-1718-101217 Date Collected: 10/12/17 08:35 Date Received: 10/13117 11:57 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Client Sample ID: FD -SO -101217 Date Collected: 10/12/17 00:00 Date Received: 10/13117 11:57 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Client Sample 1D: EB-101217-01 Date Collected: 10/12/17 14:24 Date Received: 10/13/17 11:57 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Result Qualifier ND 0.24 J B N D 0.0031 J N D N D N D Result Qualifier ND 0.48 ,J B N D 0.0033 J N D ND N D Result Qualifier 0.022 J 0.037 J B N D ND ND ND ND Method: 7470A - Mercury (CVAA) - TCLP Client Sample I D : AFAR -1 -SO -1817-101217 Date Collected: 10/12/17 12:25 Date Received: 10/13/17 11:57 Analyte Mercury RL 0.50 1.0 0 10 0.50 050 0.10 050 RL 0.50 1.0 010 0.50 0.50 0 10 0.50 RL 0.50 1.0 0,10 0.50 050 016 0 50 MDL Unit 0.014 mg/L 0 032 mg/L 0 0050 mg/L MDL 0 022 00040 O0O20 0.0030 0014 0.032 0.0050 MDL 0 022 0 0040 0.0020 0.0030 0014 0 032 00050 MDL 0 022 0.0040 0.0020 0.0030 0014 0,032 0 0050 Result Qualifier RL ND 0.0020 Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/ Unit mg/L mg/L mg/L mg/L mg/L. mg/L mg/ Unit mg/L mgiL mg/L mg/L mg/L mg/L mg/L Lab Sample ID: 280-102326-9 Matrix: Solid D Prepared Analyzed Oil Fac 10/23/17 07:24 10/23/17 16:50 1 10/23/17 07:24 10/23/17 16:50 1 10/23/17 07:24 10123/17 16:50 1 Lab Sample ID: 280-102326-10 Matrix: Solid Ii Prepared 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 Analyzed 10/23/17 16:53 10/23/17 16:53 10/23/17 16:53 10/23/17 16:53 10/23/17 16:53 10123117 16:53 10/23/17 07:24 10/23/17 16:53 Dll Fac Lab Sample ID: 280-102326-11 Matrix: Solid D Prepared 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 Analyzed Oil Fac 1 0/2311 7 16:56 10/23/17 18:56 10/23/17 16:56 10/23/17 16:56 10/23/17 16:56 /0/23117 16:56 1 10/23/17 07:24 10/23/17 16:56 I fi 1 1 Lab Sample ID: 280-102326-12 Matrix: Water D Prepared 10119/17 14:24 10/19/17 14:24 10/19/17 14:24 10/19/17 14:24 10/19/17 14:24 10/19/17 14:24 10/19/17 14:24 Analyzed 1 0120/1 7 00:35 10/20/17 00:35 10/20/17 00:35 10/20/17 00:35 10/20/17 00:35 10/20/17 00:35 10/20/17 00:35 ail Fac 1 1 1 7 MDL Unit 0.000030 mg/L Lab Sample ID: 280-102325-1 Matrix: Solid O Prepared Analyzed Oil Fac 10/23/17 11:09 10/23/17 18:08 1 TestAmerica Denver Page 12 of 29 10/28/2017 Client Sample Results Client: GEI Consultants, Inc. Project/Site: Aurora Water North Campus Soils Method: 7470A - Mercury (CVAA) - TCLP Client Sample ID: ARR-2-SO-2324-101217 Date Collected: 10112/17 00:00 Date Received: 10/13/17 11:57 Analyte Mercury Result Qualifier ND Client Sample ID: ARR-3-SO-2324-101217 Date Collected: 10112/17 16:25 Date Received: 10/13/17 11:57 Analyte Mercury Result Qualifier ND Client Sample ID: ARR-4-SO-3132-101217 Date Collected: 10/12/17 00:00 Date Received: 10/13/17 11:57 Analyte Mercury Result Qualifier ND Client Sample ID: ARR-5-SO-2930-101217 Date Collected: 10/12/17 10:00 Date Received: 10113117 11:57 Analyte Mercury Result Qualifier ND Client Sample ID: ARR-6-SO 2324-101217 Date Collected: 10112117 12:00 Date Received: 10/13/17 11:57 Analyte Mercury Result Qualifier ND Client Sample ID: AR R -7 -SO -1920-101217 Date Collected: 10112117 14:32 Date Received: 10113117 11:57 Analyte Mercury Result Qualifier NO Client Sample ID: ARR-8-SO-2628-101217 Date Collected: 10/12117 15:21 Date Received: 10/13/17 11:57 Analyte Mercury Result Qualifier ND Client Sample ID: ARR-9-SO-1920-101217 Date Collected: 10112117 11:01 Date Received: 10/13/17 11:57 Analyte Mercury Result Qualifier ND Client Sample ID: ARR-10-SO-1718-101217 Date Collected: 10112/17 08:35 Date Received: 10/13/17 11:57 A n a lyte Mercury Result Qualifier ND RL MDL Unit 0 0020 0:000030 mg/L RL MDL Unit 0.0020 0.000030 mg/1 RL MDL Unit 0 0020 0.000030 mg/L RL MDL Unit 0.0020 0.000030 m01L RL MIL Unit 0.0020 0 000030 mgft RL MDL Unit 0 0020 0 000030 mg/L RL MDL Unit 0 0020 0 000030 mg/L RL MDL Unit 0 0020 0 000030 mgfL RL MDL Unit 0 0020 0 000030 mg/L TestArnerica Job ID: 290-102326-1 Lab Sample ID: 280-102326-2 Matrix: Solid skis D Prepared Analyzed Dil Fac 10/23/17 11:09 10/23/17 18:14 1 Lab Sample ID: 280-102328-3 Matrix: Solid D Prepared Analyzed Oil Fac 10/23/17 11:09 1023/17 18:17 1 Lab Sample ID: 280-102326-4 Matrix: Solid O Prepared Analyzed DiI Fac 10/23/17 11:09 10/23/17 18:19 1 Lab Sample ID: 280-102326-5 Matrix: Solid D Prepared Analyzed Oil Fac 10/23/17 11:09 10/23/17 18:21 1 Lab Sample ID: 280-102326-6 Matrix: Solid D Prepared Analyzed DiI Fac 10/23/17 11:09 10/23/17 18:23 1 Lab Sample ID: 280-102326-7 Matrix: Solid D Prepared Analyzed DII Fac 10/23/17 11:09 10/23/17 18:25 1 Lab Sample ID: 280-102326-8 Matrix: Solid D Prepared Analyzed DO Fac 10/23/17 11:09 10/23/17 18:32 1 Lab Sample ID: 280-102326-9 Matrix: Solid 0 Prepared Analyzed Oil Fac 10/23/17 11:09 10/23/17 18:43 1 Lab Sample ID: 280-102326-10 Matrix: Solid D Prepared Analyzed DiI Fac 10/23/17 11:09 10/23/17 18:50 1 TestAmerica Denver Ina r Page 13 of 29 10/26/2017 Client Sample Results Client: G E I Consultants, Inc. Project/Site: Aurora Water North Campus Soils Method: 7470A - Mercury (CVAA) - TCLP Client Sample ID: FD -SO -101217 Date Collected: 10/12/17 00:00 Date Received: 10/13/17 11:57 Analyte Mercury Client Sample ID: BB -101217-01 Date Collected: 10/12/17 14:24 Date Received: 10113/17 11:57 A na iyte Mercury Result Qualifier ND Result Qualifier ND TestAmerica Job I D : 280-102326-1 RL MDL Unit 0.0020 0.000030 mg/L RL MDL Unit 0.0020 0.000030 mg/L Lab Sample ID: 280-102326-11 Matrix: Solid D Prepared Analyzed DII Fac 10123/17 11:09 10/23/17 18:52 1 Lab Sample ID: 280-102326-12 Matrix: Water 0 Prepared Analyzed DO Fac 10(19/17 11:56 10/19/17 18:12 1 TestAmerica Denver Page 14 of 29 10/26/2017 QC Sample Results Client: G EI Consultants, Inc. Project/Site: Aurora Water North Campus Soils Method: 6010B - Metals (ICP) Lab Sample ID: LB3 280-391619/1-B Matrix: Water Analysis Batch: 392065 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver LB3 LB3 Result Qualifier ND 0,00455 J ND ND ND ND 0 00020 J Lab Sample ID: LCS 280-391619/2-B Matrix: Water Analysis Batch: 392065 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Lab Sample ID; LCSD 280-39151913-B Matrix: Water Analysis Batch: 392065 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Lab Sample ID: LB 299-39189211-C Matrix: Solid Analysis Batch: 392465 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver LB LB Result Qualifier N D 0.0543 J N D ND N D N D ND Spike Added 400 12.0 1,10 5 20 550 3.00 1.05 Spike Added 400 120 1 10 5.20 5 50 3 00 1 05 RL 0.50 1.0 0 10 0.50 0.50 010 0 50 RL 0.50 10 010 0 50 0.50 0,10 0 50 MDL 0 022 0.0040 0 0020 0 0030 0,014 0.032 0 0050 TestAmerica Job ID: 280-102326-1 Unit mg/L mg/L nig/L mg/L mg/L mg/L rrsg/L ICS LCS Result Qualifier 4.00 120 1.15 5 07 5 98 3.07 1.17 Unit mg./L mg/L mg/L mg/L mg/L rT g/L mg/L Client Sample I D : Method Blank Prep Type: TCLP Prep Batch: 391898 D Prepared 10/19/17 14:24 10119/17 14:24 10/19/17 14:24 10/19117 14:24 10/19/17 14:24 10/19/17 14:24 10/19/17 14:24 Analyzed 10/19/17 23:46 10/19/17 23:45 10/19/17 23:46 10/19/17 23:40 10/19/17 23:45 10/19/17 23:45 10/19/17 23:46 Oil Fac 1 1 1 1 1 1 1 Client Sample ID: I a b Control Sample Prep Type: TCLP Prep Batch: 391898 %Rec. Limits 80 -120 80 -120 80-120 80.120 80. 120 80 -120 80- 120 D %Rec 101 100 105 97 109 102 112 Client Sample ID: Lab Control Sample Dup Prep Type: TCLP Prep Batch: 391898 LCSD LCSD %Rec. Result Qualifier Unit D %Rae Limits 4.19 mg/L 105 80 -120 12 4 mg/L 104 80 -120 1.19 mg1L 108 80 -120 5,17 mg/L 99 80 - 120 0 14 /rig/L 112 80 -120 3.19 mg/L 106 80_ 120 1.22 mg/L 116 80.120 MDL 0 022 0,0040 0 0020 0 0030 0 014 0.032 0 0050 Unit mg/L mg/L mg/L mg/L mg,/L mg/L mg/L RPD 3 3 3 RPD Limit 20 20 20 2 20 3 20 4 20 4 20 Client Sample ID: Method Blank Prep Type: TCLP Prep Batch: 392186 D Prepared 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 10/23/17 07:24 Analyzed 10/23/17 15:39 10/23/17 15:39 10/23/17 15:39 10123/17 15:39 10/23/17 15:39 10/23/17 15:39 10/23/17 15:39 DPI Fac 1 1 1 I TestAmerica Denver Page 15 of 29 10/26/2017 QC Sample Results Client: GEl Consultants, Inc. Project/Site: Aurora Water North Campus Sods Method: 6010B - Metals (ICP) (Continued) Lab Sample ID: LCS 280-391882/2-C Matrix: Solid Analysis Batch: 392465 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Lab Sample ID: LCSD 280-391882/3-C Matrix: Solid Analysis Batch: 392465 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Lab Sample ID: 280-102326-8 MS Matrix: Solid Analysis Batch: 392465 Analyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Sample Sample Result Qualifier ND 025 JB ND 0.0051 J Na ND ND Lab Sample ID: 280-102326-8 MSD Matrix: Solid Analysis Batch: 392465 Ana lyte Arsenic Barium Cadmium Chromium Lead Selenium Silver Sample Sample Result Qualifier N D 0 25 J B N D 0 0051 3 ND ND ND Spike Added 400 12.0 1 10 5 20 550 3.00 1.05 Spike Added 400 12.0 1.10 5.20 5.50 3.00 1.05 Spike Added 400 12.0 1.10 5 20 5,50 300 1 05 Spike Added 4.00 12.0 110 5.20 5 50 3 00 1.05 TestAmerica Job ID: 280-102326-1 LCS LCS Result Qualifier 4,05 123 1 13 5 -3 8 578 2 93 1.07 LCSD LCSD Result Qualifier 401 11.7 1.11 5.23 5 69 2.84 105 MS Result 3.92 11.7 1.08 5.09 551 2.95 1 02 MSD MSD Result Qualifier 4 05 12.5 1 11 5 27 5 09 3 04 1.05 U nit mg/L rng/L mg/L mg/L mg/L mgf L mg/L Client Sample ID: Lab Control Sample Prep Type: TCLP Prep Batch: 392186 %Rec. Q %Rec Limits 101 80-120 104 80 -120 103 80.120 104 80 -120 105 80 -120 98 80 -120 102 80 -120 Client Sample ID: Lab Control Sample Dup Prep Type: TCLP Prep Batch: 392186 %Rec. RPD D %Rec Limits RPD Limit 100 80-120 1 20 97 80-120 7 20 101 80-120 2 20 100 80-120 3 20 103 80-120 2 20 95 50-120 3 20 100 80-120 2 20 U nit mg/L mg/L mg/L mg/L mgfL mg/L mgfL Client Sample ID: ARR-8-SO-2528-101217115 Prep Type: TCLP Prep Batch: 392186 MS %Rec. Qualifier Unit D %Rec Limits mg1L 98 BO -120 mg/L 96 80 -120 mg/L 98 80 -120 mgfL 98 80 -120 mgfL 100 80 -120 mg/L 98 80 -120 mg/L 97 80 -120 Client Sample ID: ARR-8-SO-2528-101217MSD Prep Type: TCLP Prep Batch: 392186 %Rec. RPD Unit mg/L mg/L mg/L mg/L mg/L mgfL mg/L D %Rec Limits 101 80-120 102 80 -120 101 80-120 101 80-120 103 80 -120 101 80. 120 100 80 -120 RPD Limit 3 20 7 20 3 20 3 20 3 20 3 20 3 20 TestAmerica Denver Page 16 of 29 10/26/2017 QC Sample Results Client: GEI Consultants, Inc. TestAmerica Job ID: 280-102326-1 Project/Site: Aurora Water North Campus Soils Method: 7470A - Mercury (CVAA) Lab Sample ID: LB3 280-391619/1-C Matrix: Water Analysis Batch: 392082 Analyte Mercury LB3 LB3 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac ND 0.0020 0 000030 mg/ 10/19117 11:56 10/19/17 17:28 I Client Sample ID: Method Blank Prep Type: TCLP Prep Batch: 391942 Lab Sample ID: LCS 28a -391619/2-C Matrix: Water Analysis Batch: 392082 Analyte Mercury Lab Sample ID: LCSD 280-391619/3-C Matrix: Water Analysis Batch: 392082 Analyte Mercury Lab Sample ID: LB 280-391882/1-B Matrix: Solid Analysis Batch: 392475 Analyte Mercury LB LB Result Qualifier RL IMIDL Unit D Prepared Analyzed Dil Fac ND 0.0020 0 000030 mg/L 10/23/17 11:09 10123/17 17:59 1 Client Sample ID: Lab Control Sample Prep Type: TCLP Prep Batch: 391942 Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Limits 0.00500 0.00513 mg/L 103 90 -115 Client Sample ID: Lab Control Sample B u p Prep Type: TCLP Prep Batch: 391942 Spike LCSD LCSD %Rec. RPD Added Result Qualifier Unit D %Rec Limits RPD Limit 0.00500 0.00496 mg/L 99 90 -116 - 3 10 Client Sample ID: Method Blank Prep Type: r _ TCLP riep Type: Prep Batch: 392175 Lab Sample ID: LCS 280-391882/2-B Matrix: Solid Analysis Batch: 392475 Analyte Mercury Lab Sample ID: LCSD 280-391882/3-B Matrix: Solid Analysis Batch: 392475 Analyte Mercury Client Sample ID: Lab Control Sample Prep Type: TCLP Prep Batch: 392175 Spike LCS LCS %Rec. Added Result Qualifier Unit D °}%Ree Limits 0 00500 0.00530 mg/L 106 90_ 116 - Client Sample ID: Lab Control Sample Dup Prep Type: TCLP Prep Batch: 392175 Spike LCSD LCSD %Rec. RPD Added Result Qualifier Unit D %Rec Limits RPD Limit 0.00500 0.00503 mg/l_ - - 101 90_116 5 10 Lab Sample ID: 280-102326-8 MS Client Sample ID: ARR-8rSO 2628-1O1217MS Matrix: Solid Prep Type: TCLP Analysis Batch: 392475 Prep Batch: 392175 Sample Sample Spike MS MS %Roc. Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits Mercury ND 0,00500 0.00528 mg/L 106 90.115 Lab Sample ID: 280-102326-8 MSD Client Sample ID: ARR-8-SO-2628-101217MSD Matrix: Solid Prep Type: TCLP Analysis Batch: 392475 Prep Batch: 392175 Sample Sample Spike MSD MSD %Rec. RPD Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits RPD Limit Mercury ND 0.00500 0,00510 mg/L 102 90 , 115 ---- 4 10 TestAmernca Denver Page 17 of 29 10/26/2017 QC Sample Results Client: GEI Consultants, Inc. TestAmerica Job ID: 280-102326-1 Project/Site: Aurora Water North Campus Soils TestAmerica Denver Page 18 of 29 10/26/2017 QC Association Summary Client: GEI Consultants, Inc. Project/Site: Aurora Water North Campus Soils Metals Leach Batch: 391619 Lab Sample ID 260-102326-12 LB3 280-391819/1-B LB3 280-391619/1-C LCS 280-391619/2-B LCS 280-391619/2-C LCSD 280-391619/3-B LCSD 280-391619/3-C Leach Batch: 391882 Lab Sample ID 280-102326-1 280-102326-2 280-162326-3 280-102326-4 280-102326-5 280-102326-6 280-102326-7 280-102326-6 280-102326-9 280-102326-10 280-102326-11 LB 280-391882/1-B LB 280-391882/1-C LCS 280-391882/2-B LCS 280-391682/2-C LCSD 280-391882/3-B LCSD 280-391882/3-C 280-102326-8 MS 280-102326-8 MSD Prep Batch: 391898 Lab Sample ID 280-102326-12 LB3 280-391619/1-B LCS 280-391619/2-B LCSD 280-39161913-B Prep Batch: 391942 Lab Sample ID 280. 602326--12 LB3 280-391619/1-C LCS 280-391619/2-C LCSD 280-391619/3-C Analysis Batch: 392065 Lab Sample ID 280-102326-12 LB3 280-391619/1-B LOS 280-391619/2-B LCSD 280-391619/3-8 Client Sample ID EB-101217-01 Method Blank Method Blank Lab Control Sample Lab Control Sample Lab Control Sample Dup Lab Control Sample Dup Client Sample ID ARR-1-SC-1817-101217 ARR-2-SO-2324-101217 ARR-3-SO-2 324-101217 AR R -4 -SO -3132-101217 ARR-5-SO-2 930-101217 ARR-6-SC-2 324-101217 ARR-7-SC-1920-101217 ARR-8-SO-2628.101217 ARR-9-SO-1920-101217 ARR-10-SO-1718-101217 FD -SO -101217 Method Blank Method Blank Lab Control Sample Lab Control Sample Lab Control Sample Dup Lab Control Sample Dup ARR-8-SC-2628-101217MS A FAR-B-SO-2628-101217MSD Client Sample ID EB-101217-01 Method Blank Lab Control Sample Lab Control Sample Dup Client Sample ID EB-101217-01 Method Blank Lab Control Sample Lab Control Sample Dup Client Sample ID EB-101217-01 Method Blank Lab Control Sample Lab Control Sample Dup Prep Type TCLP TCLP TCLP TCLP TCLP TCLP TCLP Prep Type TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP Prep Type TCLP TCLP TCLP TCLP Prep Type TCLP TCLP TCLP TCLP Prep Type TCLP TCLP TCLP TCLP TestAmerica Job ID: 280-102326-1 Matrix Water Water Water Water Water Water Water Matrix Solid Solid SoUid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Matrix Water Water Water Water Matrix Water Water Water Water Matrix Water Water Water Water Method 1311 1311 1311 1311 1311 1311 1311 Method 1311 1311 1311 1311 1311 1311 1311 1311 1311 1311 1311 1311 1311 1311 1311 1311 1311 1311 1311 Method 3010A 3010A 3010A 3010A Method 7470A 7470A 7470A 7470A Method 60108 6010E 60108 6010B Prep Batch Prep Batch Prep Batch 391619 391619 391619 391619 Prep Batch 391619 391619 391619 391619 Prep Batch 391898 391898 391898 391898 TestAmerica Denver Page 19 of 29 10/26/2017 QC Association Summary Client: GEI Consultants, Inc. Project/Site: Aurora Water North Campus Soils Metals (Continued) Analysis Batch: 392082 Lab Sample ID 280-102326-12 LB3 280-391619/1-C 9/1-C LCS 280-39161912-C LCSD 280-391619/3-C Prep Batch: 392175 Lab Sample ID 260-102326-1 280-102326-2 280-102326-3 280-102326-4 280-102326-5 280-102326-6 280-102326-7 280-102326-a 280-102326-9 280-102326-10 280-102326-11 LB 280-39188211-B LOS 280-39188212-B LCSD 280-391882/3-B 280-102326-8 MS 280-102326-8 MSD Prep Batch: 392186 Lab Sample ID 280-102326-1 280-102326-2 280-102326-3 280-102326-4 280-102326-5 280-102326-6 280-102326-7 280-102326-8 280-102326-9 280-102326-10 280-102326-11 LB 280-391882/1-C LCS 280-391882/2-C LCSD 280-391882/3-C 280-102326-8 MS 280-102326-8 MSD Analysis Batch: 392465 Lab Sample ID 280-102326-1 280-102326-2 280-102326-3 280-102326-4 280-102326-6 280-102326-6 Client Sample ID EB-101217-01 Method Blank Lab Control Sample Lab Control Sample Dup Client Sample ID ARR-1-S O-1617-101217 ARR-2-SO-2324-101217 ARIA -3 -SO -2324-101217 ARR-4-SO-3132-101217 ARR-6-SD-2 930-101217 ARR-6-SO-2 324-101217 ARR-7-SO-1920-101217 ARR-8-SO-2628-101217 ARR-9-SO-1920-101217 ARR-10-SC-1718-101217 FD -SO -101217 Method Blank Lab Control Sample Lab Control Sample Dup A RR-8-SO-2628-101217MS A.RFt-8-SO-2628-101217MSD Client Sample ID ARR-1-SO-1617-101217 ARR-2-SO-2324-101217 ARR-3-SC-2324-101217 ARR-4-SO-313 2-101217 ARR-B-SO-293 0-101217 AR R -6 -SO -2324-101217 ARR-7-SO-192 0-101217 PARR -8 -SO -2628-101217 ARR-9-SO-1920-101217 ARR- 10 -SO -1718-101217 FD -SO -101217 Method Blank Lab Control Sample Lab Control Sample Dup AFT -6 -SO -2628-101217M S A RIB -8 -SO -2628-101217M S D Client Sample ID ARR-1-SO-1617-1012 17 ARR-2-SO-2324-t 01217 ARR-3-SO-2324-101217 ARR-4-SO-3132-10 1217 ARR-B-SO-293 0-101217 AR R -6 -SO -2324-101217 Prep Type TCLP TCLP TCLP TCLP Prep Type TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLF TCLP TCLP TCLP Prep Type TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP Prep Type TCLP TCLP TCLP TCLP TCLP TCLP Matrix Water Water Water Water Matrix Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Matrix Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Matrix Solid Solid Solid Solid Solid Solid TestAmerica Job I D : 280-102326-1 Method 7470A 7470A 7470A 7470A Method 7470A 7470A 7470A 7470A 7470A 7470A 7470A 7470A 7470A 7470A 7470A 7470A 7470A 7470A 7470A 7470A Method 3010A 3010A 3010A 3010A 3010A 3010A 3010A 3010A 3010A 3010A 3010A 3010A 3010A 3010A 3010A 3010A Method 6010E 60108 601013 6010B 6010E 6010E Prep Batch 391942 391942 391942 3919 42 Prep Batch 391882 391882 391882 391882 391882 391882 391882 391882 391882 391882 391882 391882 391882 391882 391882 391882 Prep Batch 391882 391882 391882 391882 391882 391882 391882 391882 391882 391882 391882 391882 391 882 391882 391882 391882 Prep Batch 392186 392186 392186 392186 392188 392186 TestAmerica Denver Page 20 of 29 10/26/2017 QC Association Summary Client: G E I Consultants, Inc. Project/Site: Aurora Water North Campus Soils Metals (Continued) Analysis Batch: 392465 (Continued) Lab Sample ID 280-102326-7 280-102326-8 280-102326-9 280-102326-10 280-102326-11 LB 280-391882/1-C LCS 280-391882/2-C LCSD 280-39188213-C 280-102326-8 MS 280-102326-6 MSD Analysis Batch: 392475 Lab Sample ID 260-102326-1 280-102326-2 280-102328-3 280-102326-4 280-102326-5 280-102326-6 280-102326-7 280-102326-8 280-102326-9 280-102326-10 280-102326-11 LB 280-391882/1-B LCS 280-39188212-R LCSD 280-391882/3-B 280-102326-8 MS 260-102326-8 MSD Client Sample ID ARR-7-SO-1 920-101217 ARR-6-SO-2626-101217 ARR-9-SO-102x-101217 AFAR -10 -SO -1718-101217 FD -SO -101217 Method Blank Lab Control Sample Lab Control Sample Dup ARR-8-SO-2628-101217M S AR.R-8-SO-2628-101217MS D Client Sample ID ARR-1-SO-1617-101217 ARR-2-SO-2 324-101217 ARR-3-SC-2 324-101217 ARR-4-SO-3132-10121 7 ARR-5-SO-2930-101217 ARR-6-SO-2324-101217 ARR-7-SO-1920-101217 ARR-8-SO-262 6-101217 ARR-9-SO-1920-101217 ARR-10-SC-1718-101217 FD -SO -101217 Method Blank Lab Control Sample Lab Control Sample Dup ARR-8-SO-2628-101217MS ARR-8-SO-2628-101217M SD Prep Type TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP Prep Type TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP TCLP Matrix Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Matrix Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid Solid TestAmerica Job ID: 280-102326-1 Method Prep Batch 6010E 392 186 6010E 392166 6010B 392166 60108 392186 60108 392186 6010E 392186 6010B 392186 60106 392186 6010E 392186 8010E 392186 Method Prep Batch 7470A 392175 7470A 392175 7470A 392175 7470A 392175 7470A 392175 7470A 392175 7470A 392175 7470A 392175 7470A 392175 7470A 392175 7470A 392175 7470A 392175 7470A 392175 7470A 392175 7470A 392175 7470A 392175 TestAmerica Denver Page 21 of 29 10/26/2017 Lab Chronicle Client: GEI Consultants, Inc. Project/Site: Aurora Water North Campus Soils Client Sample ID: ARR-1-So-1 17-101217 Date Collected: 10/12/17 12:25 Date Received: 10113/17 11:57 Prep Type TCLP TCLP TCLP TCLP TCLP TCLP Batch Type Leach Prep Analysis Leach Prep Analysis Batch Method 1311 3010A 6010E 1311 7470A 7470A TestAmerica Job ID: 280-102326-1 Dil Run Factor Client Sample ID: ARR-2-SO-2324-101217 Date Collected: 10/12/17 00:00 Date Received: 10/13/17 11:57 Prep Type TCLP TCLP TCLP TCLP TCLP TCLP Batch Type Leach Prep Analysis Leach Prep Analysis Batch Method 1311 3010A 6010E 1311 7470A 7470A 1 1 Dil Run Factor Client Sample ID: ARR-3-SO-2324-101217 Date Collected: 10/12/17 16:25 Date Received: 10/13/17 11:57 Prep Type TCLP TCLP TCLP TCLP TCLP TCLP Batch Type Leach Prep Analysis Leach Prep Anarysis Batch Method 1311 3010A 6010B 1311 7470A 7470A 1 1 Initial Amount g 10 mL 1 0 g 30 mL Initial Amount 1 0 g 10 mL 1-0 g 30 mL Lab Sample ID: 280-102326-1 Matrix: Solid Final Batch Amount Number 1.0 rnL 391682 50 mL 392186 392465 1 0 mL 391882 50 mL 392175 392475 Dil Run Factor Client Sample ID: ARR-4-SO-3132-101217 Date Collected: 10/12/17 00:00 Date Received: 10/13/17 11:57 Prop Type TCLP TCLP TCLP TCLP TCLP TCLP Batch Type Leach Prep Analysis Leach Prep Analysis Batch Method 1311 3010A 6010E 1311 7470A 7470A OH Run Factor 1 Initial Amount 1 0 g 10rnL 1.0g 30 mL Initial Amount 1,0 9 10 mL 1 0 g 30 mL Final Amount 1 0 mL 50 rnL 1 .0 mL 50mL Prepared or Analyzed 10/16/17 19:39 10123/17 07:24 10/23/17 15:51 10/18/17 19:39 10/23/17 11:09 10/23/17 18:08 Analyst DFB1 MLS COIL DFB1 CDH CDH Lab TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN Lab Sample ID: 280-102326-2 Matrix: Solid Batch Number 391882 392186 392465 391882 392175 392475 Prepared or Analyzed 10/18/17 19:39 10/23/17 07:24 10/23/17 15:54 10/18/17 19:39 10/23/17 11:09 10/23/17 18:14 Analyst DFB1 MLS CML DFB1 CDH CDH Lab TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN Lab Sample ID: 280-102326-3 Matrix: Solid Final Batch Amount Number 1 0 rnL 391882 50 mL 392186 392465 1-0 391882 50 mL 392175 392475 Prepared or Analyzed 10/18/17 19:39 10/23/17 07:24 10/23/17 15:56 10/18/17 19;39 10/23/17 11:09 10/23/17 18:17 Analyst DEBI MLS CML DFB1 CDH CDH Lab TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN Lab Sample ID: 280-102326-4 Matrix: Solid Final Batch Amount Number 1.0 mL 391832 50 rnL 392186 392465 1,0 mL 391882 50 mL 392175 392475 Prepared or Analyzed 10/18/17 19:39 10/23/17 07:24 10/23/17 15:59 10/18/17 19:39 10/23/17 11:09 10123/17 18:19 Analyst DFB1 MLS CML DFB1 CDH CDH Lab TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TestArnerica Denver 5 *11 Page 22 of 29 10/26/2017 Lab Chronicle Client: GEI Consultants, Inc. Project/Site: Aurora Water North Campus Soils Client Sample ID: ARR-5-SO-2930-101217 Date Collected: 10/12/17 10:00 Date Received: 10/13/17 11:57 Prep Type TCLP TCLP TCLP TCLP TCLP TCLP Batch Batch D li Type Method Run Factor Leach 1311 Prep 3010A Analysis 6010E 1 Leach 1311 Prep 7470A Analysis 7470A 1 Client Sample ID: ARR SO -232 101217 Date Collected: 10/12/17 12:00 Date Received: 10/13/17 11:57 Prep Type TCLP TCLP TCLP TCLP TCLP TCLP Batch Type Leach Prep Analysis Leach Prep Analysis Batch Method 1311 3010A 60109 1311 7470A 7470A Run Client Sample ID: AFT -7 -SO -1920-101217 Date Collected: 10/12/17 14:32 Date Received: 10/13/17 11:57 Prep Type TCLP TCLP TCLP TCLP TCLP TCLP Batch Batch Type Method Leach 1311 Prep 3010A Analysis 8010E Leach 1311 Prep 7470A Analysis 7470A Run Initial Amount 10g 10rri� 100 30 mL D i!l Factor 1 ail Factor Client Sample ID: AFAR -8 -SO -2628-101217 Date Collected: 10112/17 15:21 Date Received: 10113/17 11:57 Prep Type TCLP TCLP TCLP TCLP TCLP TCLP Batch Batch Type Method Leach 1311 Prep 3010A Analysis 60108 Leach 1311 Prep 7470A Analysis 7470A Run Initial Amount 1.0g 10 mL 1 0 g 30mL Initial Amount 1.0 g 10 mL lag 30 mL Dii Factor 1 Initial Amount 1.0g 10 mi. 100 30 mL TestAmerica Job ID: 280-102326-1 Lab Sample ID: 280-102326-5 Matrix: Solid Final Batch Amount Number 1.0 mL 391882 50 mL 392188 392465 1 0 mL 391982 50 mL 392175 392475 Final Amount 1OmL 50 mL 1.0 mL 50mL Prepared or Analyzed 10/18/17 19:39 10/23/17 07:24 10/23/17 16:02 10/18/17 19:39 10/23/17 11;09 10/23/17 18;21 Analyst DFB1 MLS CML DFB1 CDR CDH Lab TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN Lab Sample ID: 280-102326-6 Matrix: Solid Batch Number 391882 392186 392465 391882 392175 392475 Prepared or Analyzed 10/18/17 19:39 10/23/17 07:24 10/23/17 18;17 10/18117 19:39 10/23117 11:09 10123/17 18:23 Analyst DFB1 MLS CML DFB1 CDH CDH Lab TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN Lab Sample ID: 280-102326-7 Matrix: Solid Final Batch Amount Number 1 0 mL 391882 50 mL 392186 392465 1.0 mL 391882 50 mL 392175 392475 Prepared or Analyzed 10/18/17 19:39 10/23/17 07:24 10/23/17 16:20 10118/17 19:39 10/23/17 11:09 10/23/17 18:25 Analyst DFB1 MLS CML DFB1 CDH CDH Lab TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN Lab Sample ID: 280-102326-8 Matrix: Solid Final Batch Amount Number 1.0 mL 391882 50 mL 392186 392465 1 0 mL 391882 50 mL 392175 392475 Prepared or Analyzed 10/18/17 19:39 10/23/17 07:24 10/23/17 16:23 10/18117 19:39 10/23/17 11:09 10/23/17 18:32 Analyst DFB1 MLS CML DFB1 CDH CDH Lab TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TestAmerica Denver Page 23 of 29 10/26/2017 Lab Chronicle Client: GE I Consultants, Inc, Project/Site: Aurora Water North Campus Soils Client Sample ID: ARR-9-SO-1920-101217 Date Collected: 10/12/17 11:01 Date Received: 10/13/17 11:57 Prep Type TCLP TCLP TCLP TCLP TCLP TCLP Batch Type Leach Prep Analysis Leach Prep Analysis Batch Method 1311 3010A 6010E 1311 7470A 7470A ail Run Factor 1 1 TestAmerica Job ID: 250-102326-1 Lab Sample ID: 280-102326-9 Matrix: Solid Initial Amount 1.0g 10 mL 1 D g 30 mL Client Sample ID: ARIA -10 -SO -1718-101217 Date Collected: 10/12/17 08:35 Date Received: 10/13/17 11:57 Prep Type TCLP TCLP TCLP TCLP TCLP TCLP Batch Type Leach Prep Analysis Leach Prep Analysis Batch Dil Method Run Factor 1311 3010A 5010E 1 1311 7470A 7470A Initial Amount 1.0 g 10 mL 1 0 g 30 mL Final Batch Amount Number 1 0 mL 391882 50 mL 392186 392465 1 0 rnL 391882 50 mL 392175 392475 Prepared or Analyzed 10118/17 19:39 1 0123/1 7 07:24 10/23/17 16:50 10/18/17 19:39 10/23/17 11:09 10/23/17 10:43 Analyst DEB1 MILS CML DFB1 CDH CDH La b TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN Lab Sample ID: 280402326-10 Matrix: Solid Final Batch Amount Number 1.0 mL 391882 50 mL 392186 392465 1.0 mL 391882 50 mL 392175 392475 Client Sample ID: FD -SO -101217 Date Collected: 10/12/17 00:00 Date Received: 10/13/17 11:57 Prep Type TCLP TCLP TCLP TCLP TCLP TCLP Batch Type Leach Prep Analysis Leach Prep Analysis Batch Method 1311 3010A 6010E 1311 7470A 7470A Client Sample ID: EB-101217-01 Date Collected: 10/12/17 14:24 Date Received: 10/13/17 11:57 Prep Type TCLP TCLP TCLP TCLP TCLP TCLP Batch Type Leach Prep Analysis Leach Prep Analysis Batch Method 1311 3010A 60100 1311 7470A 7470A Run Dil Factor 1 Initial Amount 1.O g 10 mL 1 .O g 30 mL Run ail Factor 1 Initial Amount 1,0g 10mL 1 0 g 30 mL Prepared or Analyzed 10/18/17 19:39 10/23/17 07:24 10/23/17 16;53 10/18/17 19:39 10/23/17 11:09 10/23/17 18:50 Analyst DFB1 MLS CML DFB1 CDH CDH Lab TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN Lab Sample ID: 280-102326-11 Matrix: Solid Final Batch Amount Number 1,0 mL 391882 50 mL 392185 392465 1.0 mL 391882 50 mL 392175 392475 Prepared or Analyzed 10/18/17 19:39 10/23/17 07:24 10/23/17 16:56 10/18/17 19:39 10/23/17 11:09 10/23/17 18:52 Analyst DFB1 MLS CML DEB1 CDH CDH Lab TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN Lab Sample ID: 280-102326-12 Matrix: Water Final Batch Amount Number 1.0 mL 391619 50 rnL 391898 392065 1.0 mL 391619 50 mL 391942 392082 Prepared or Analyzed 10/17/17 07:11 10119/17 14:24 10/20/17 00:35 10/17/17 07:11 10/19/17 11;55 10/19117 18:12 Analyst DFB1 MLS CRR DFB1 CDH CDH Lab TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TAL DEN TestAmerica Denver Page 24 of 29 10/26/2017 Lab Chronicle Client: G E I Consultants, Inc. TestAmerica Job ID: 250-102326-1 Project/Site: Aurora Water North Campus Soils Laboratory References: TAL DEN = TestAmerica Denver, 4955 Yarrow Street, Arvada, CO 80002, TEL (303)736-0100 TestAmerica Denver Page 25 of 29 10/26/2017 Client: E I Consultants, Inc. Accreditation/Certification Summary TestAmerica Job ID: 280-1D2326-1 Project/Site: Aurora Water North Campus Soils Laboratory: TestAmerica Denver All accreditations/certifications held by this laboratory are listed. Not all accreditation s/certifications are applicable lo this report. Authority A2LA A2LA Alabama Alaska (UST) Arizona Arkansas DEO California Connecticut Florida Georgia Illinois Iowa Kansas Louisiana Maine Minnesota Nevada New Hampshire New Jersey New York North Carolina (WW/SW) North Dakota Oklahoma Oregon Pennsylvania South Carolina Texas USDA Utah Virginia Washington West Virginia DEP Wisconsin Wyoming (UST) Program DoD FLAP ISO/IEC 17025 State Program State Program State Program State Program State Program State Program NELAP State Program NELAP State Program N ELAP N ELAP State Program N ELAP State Program NELAP NELAP NELAP State Program State Program State Program NELAP N ELAP State Program N ELAP Federal N ELAP N ELAP State Program State Program Stale Program A2LA EPA Region 4 10 9 6 9 1 4 4 5 7 7 6 1 5 9 1 2 2 4 S 6 10 3 4 6 8 3 10 3 5 8 * Accreditation/Certification renewal pending - accreditation/certification considered valid Identification Number 2907 01 2907.01 40730 UST -30 AZD713 88-0687 2513 PH -0686 E87667 N/A 200017 370 E-10166 02096 CO0002 6-999-405 CO0026 205310 CO004 11964 358 R-034 8614 4025 68-00664 72002001 1104704183-16-12 P330-16-00397 C000026 460232 C583 354 9996164 30 2907.01 Expiration Date 10-31-17 10-31-17 09-30-12 * 04-05-18 12-20-17 06-01-18 01-08-18 09-30-18 06-30-18 01-08-18 04-30-18 12-01-18 04-30-18 06-30-18 03-03-19 12-31-17 07-31-18 04-28-18 06-30-18 04-01-18 12-31-17 01-09-18 08-31-18 01-08-18 07-31-18 01-08-18 09-30-18 12-15-19 07-31-18 06-14-18 08-03-18 11-30-17 08-31-18 10-31-17 TestAmerica Denver Page 26 of 29 10/26/2017 6Z 40 L ;Bed 13 -44 TestAmerica Denver 4955 Yarrow Street. Arvada. CO BOOM Phone (303) 736-0100 Fax (303) 431-7171 Chain of Custody Record lestAmerica T l r L FIAKM' IN PFTIVIINONISPIITAL ITSTINCI S rR 1 Lae Ptt erre TractNow CCC P. Client Information Icie, Jamie N 4N4e'nl Contact Torn Daigle Mcrae q - Page jarnie.ide@t er r inc.00rn Page —atom Company. GEI Consultants.. Inc. Anal laFie .; uested Madre:5V. Due Date Requested:4601 _ OTC Blvd, Suite 900 I r Pres ' iatigefe 3: - — City ;Denver TAT hilt# i NOM 1 ,State dip .8Q23?, - F- R -t4 Sb3 Phone, PCI x I - s- Ily a 303-264-TO9O(Tel) tF 21 1 I .p .so.MR .R- ..., `{''r1ii4M'-Y y yy+ayr ��,, Email: tdaigl onsuttanas. IIQ: i�� t ( 1- U- ge `7 I J - —+• • t rfctoct Name: GEi - Aufwa Water North Campus Soils Prowl Or 28010 76 Tidal Numb., of c a r — _ +c�w ss; I a it Sa M Tea "ate 4„....... . t saris per, o•. a�.2 Sampled idenuificauon Sample DM* Ti ne Citaitila w.1.1”...,tar ! . = i I tru ti4r�; T . 1all _ V '5C)F%tOf•i 11-‘ .�.0 ,` L , : } X11./ i L/ { ' 'V Mr" f 1 - e BMA . V -- - r 1 14 rj ( � a 111 Mime t(� ` V7.11 144/ t Irlu� ' � � !, � i ill ll PAZA. "lie SD 4/ i 41) a 4 JO la 1.1 NI _ 1II. I i'Hffiin:J ii, I cf\c,%,Si.)Sy;_Z'C M 12 1 1 ' L , I � ki ' 280-102326 Chain CueIod of _ Ps faiicz, * Le St3 ` a.)?..3.4 !D it L %Ia .�� AgieNgi-47 a SO sh itclai- Dal 1'l A isS-4%t t ‘4 SD r ihis-‘)1.94th r 10121-11 lit 0.A1 A L . i (, VCRs& B r SD s 3,03% • f SI l I 1:' I ! _ A geST`N‘ b u SI; e ab ii3 4 MO I, fierlt) ke) 0 1 -Al RSZN telt 42r 50 c i`i 20 a0all MI, _ Psi siWe Hazard t� Sample Disposal (A Ate PLOY giSSeSSed if samples se retained longer than I month)LiN Non -Hazard Flammable Skin Itnranr Poison B Unknown Ratholoc4,21 Return To Client : OispoSa1 By Lab Arthive FIX _- Months Dalriterable rite : t. r1 iii, IV, O (specify) Special truck /OC Requirements: Empty Kit Relinquished by: - rue►: JT!_I.u1r Shipment I4u03ac mit 'IL - -4 3 ali , /3 i aci d -1 ar ' der - ReifitquiSil fir_ .. (Received by: ��atr�any t�t?c�^I' - =-- — IR.eirnoutried by: � tatelrrene: �'tfrm t iR,�ved by: Q�te+'f�-�t ,�r Cisiskxty Seals Intact: Custody Seal It.: IC'+ooler T wuft) dt end Mat Re Yes AND - t en- „ 6.....r 7 %ch. -. , /II 6e - - , - (03 It - --s _Za z a 6Z 4° 23 868d 2.10 !93/O Sample Type I �c rnci. Grab Analysis Requested TestAmerica '' IF LFADTV •ilk FMinPrOmpierbiTAt Tr $T f x; Rage Prey ration 0 orils; A - B - NaQtl C - En aaroeble E-1' f74 F -I #a t- Amchkr H - Ascorbic Acid I - ins J- DIWat aIK -ETA L- A Other: 72 •T,zr� M s rlapIS Y� j `e ,1.-esJa p erica Denver 4955 Verrow Street Arvada, 0080002 Phone (303) 738.0100 Fax CO3! 431-7171 `Client information Chant Contact Tom Daigle 4601 DTC Blvd. Suite 900 one; 3-264-10 cTe1) Emit 'ttlaiigleagelconsuit8 .com `rte Natnc: GEl - ALMOra Water Seth Campus Sotk arye identification � ve-c ,. aS tIi - t \i Fable a VOI lire Ete:, _, .ar Chain of Custody Record :Due Dale Requested: rib .2)1416 r Pralect ;28010876 Sa rnM+ Sample Date 7[rT t7 1 \\7_,f1 g. octal MA - Henna. N❑ • None T -A s a 2 P - Ma22O&S yyy� r tSO3 S-El2 Tr TSP borate U - Arable Z -WOW (60410Y) rla'tructivn ote° Pio*sibite Hazard identification ification► SampleDisposal sc# (A maybe assessed if samples are fad longethe n en 1 month) ;t4 0 Q Cl$ate isr - r rd Flam bit Skin irr ant meson El Unknow? Radicio9itai Return To Glienr asposaf ey Lab Ardivs for the s Requested: I Ii, DeI' :per bii,. [I IV. Other r� i' ,l � - SSpecialtI'tS'tA�,� = 'tsa'QC . �� _ } � - - -- - t Kit � - het _y► it u �� - - - --- - _ Tom r**ICtst*wnent Pm d by. ' a t1 balm/TireL - , - , i' aysnoz` r 4®_..: _ . .._ .. C4,{i'r . '� _ mi - t � .--1-7 7 p, Y fiemlaftd Ear: Darerlrr-er Ccrntatri Ramass f . company. Received ba.r: �i C 3:tegi '�' ! 'Lr Fe.'rG a ri 4 - - - dust edy Seals In t. Gust Sew I4o.: _cooler T+ 4P l J °C and 064ar 4 ' d uis it Ne AEI mire a -,! ~ e s" Login Sample Receipt Checklist Client: GEI Consultants, Inc. Job Number 280-102326-1 Login Number: 102326 List Number: 1 Creator: True, Joshua A List Source: TestAmerica Denver Question Answer Comment Radioactivity wasn't checked or is </ background as measured by a survey NIA meter. The cooler's custody seal, if present, is intact. True Sample custody seals, if present, are intact. True The cooler or samples do not appear to have been compromised or True tampered with Samples were received on ice. True Cooler Temperature is acceptable. True Cooler Temperature is recorded. True CCC is present. True CCC is filled out in ink and legible. True COC is filled out with all pertinent information. False Refer to Job Narrative for details Is the Field Sampler's name present on COC? False Refer to Job Narrative for details. There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. False Refer to Job Narrative for details. Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. N/A There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is N/A <6mm (1/4"). Multiphasic samples are not present True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A TestAmerica Denver 3 Page 29 of 29 10/26/2017 NORTH CAMPUS ARR SOIL SAMPLING DECEMBER 2017 Appendix C Data Validation Summary Report GEI Data Validation Summary Report I Appendix C Memorandum To Tom Daigle From: Lorie MacKinnon Regarding: Data Validation for Aurora Water North Campus Aquifer and Recharge and Recovery Site A Date: November 1, 2017 Below is a summary of the data quality control and data quality assurance (QA/QC) items reviewed as part of the data verification process associated with the Aurora Water North Campus Aquifer and Recharge and Recovery Site A project. Sample Collection Date — October 12, 2017 Number Samples Collected - 10 Soils Number Sample Duplicates Collected - 1 Soil Number of Equipment Blanks Submitted — 1 Equipment blank sample Sample Delivery Groups - I (Test America Report 280-102326-1) SAMPLES Samples included in this review are listed below: 1 1 1 1 1 AIR 1- 161 101217 ARR-2-SO-2324-101217 2324 101217' -- P ARR-3-SO-2324-101217 ARR 3 S 2324-101217 ARC. -4 -SO -3132-101217 ARR-6-SO-2324-101217 24-101217 ARR-5-SO-2930-101217 O-293 0-101217 ARR-9- O-1920-101217 AIR -7- O-1920-101217 ARC. -8- D-2628- l O 1217 ARC. -1 O- O-1718-101217 FD -SO -101217 EFL -101217-O 1 I Field duplicate of A RR -7 -SO -1920-101217 The samples were analyzed for TOY Metals using SW -846 Methods 1311/6010B/7470A. QA/QC Items Evaluated • Sample receipt condition • Laboratory identified non -conformances • Sampling hold time • Method blanks Lab control spikes Matrix spikes / matrix spike duplicates (MS/MSD) • Samples requiring dilution Equipment Blanks Field duplicates Sample Receipt Condition The sample were received at 11.3 degrees Celsius. Transit time from site to the laboratory was verified by courier as 30 minutes. Validation actions were not taken on this basis as the samples were received on ice and due to short time in transit, the cooler was not able to achieve the temperature of 4 ± 2 degrees. Laboratory Non -Conformance The laboratory did not identify any non -conforming events during sample analysis. Sample Hold Time All samples were analyzed within the method required holding times. Method Blanks All method blanks were free of target anal rtes except where noted below. Batch 391898: Silver (0.00620 .1 mg/L) and barium (0.00455 J mg/L) were detected below the reporting limit (RL) in method blank LB3 280-391619, which was associated with sample ED - 101217 -01. The result for barium in sample EB-10127-01 was qualified as nondetect (U) at the reporting limit. Batch _392186: Barium (0O543 .1 mg/L) was detected below the reporting limit (RL) in method blank LB 280-391882, which was associated with all TCLP samples. The results for barium in Tar' samples A RIA--1- O-1617-101217, A RR -2- O-23 24 -101217, RR -3 - O-23 24-101 17, ARR-4- SO-3132-101217, ARR-5-SO-2930-101217, - O- 93 0 -101 17, ARR-6-SO-2324-101217, 3 24-101 17, ARR-7-SO-1920-101217, ARR- 8- 0-262 8 101217, AIR. -9- O 19 .0 101217, ARRR 1 0 -SO 171 101217, and FD -101217-01 were qualified led as nondetect (U) at the reporting limit. Lab Control Spikes All lab control spike samples recovered within the laboratory specified control limits. Matrix Spike / Matrix Spike Duplicates MS/MSD I D analyses were performed on sample A RR -8- SO 262 8-101217 for ICP metals and mercury. All recovery and precision criteria were met, Samples Requiring Dilution Dilutions were not required. Equipment Blanks The equipment blank sample was free of target analytes except where noted. below. Arsenic (0.022 J mg L) was detected below the reporting limit (RL) in equipment blank sample EB-101 17-01, which was associated with all TCLP samples. Validation actions were not required on this basis as arsenic was not detected in the project samples. Field Duplicates Samples ARR-7-SO-1920-101217 O-1920-101 l 7 and FD -101217-0 I were submitted as the field duplicate pair with this sample set. The following table summarizes the RPD of the detected analyte in the field duplicate pair, which was within the acceptance criteria. Analyte Chromium ARR-7-Std-1920-1 O 1217 (mL) 0.0059) FO -10121741 1 (m L) 0.0033 J RFD (%) 56.5, Within the RL NC — Not calculable Criteria: When both results are ≥5x the RL, RPDs must be <30%. When results are < 5x the RL, the absolute difference between the original and field duplicate results must be C RL Note: Unless qualified for other reasons above, all data qualifiers for analyte concentrations detected between the method detection limit and laboratory reporting limit (J) have been accepted as valid. Client: GEl Consultants, Inc. Proje'Sits: Aurora Water North Campus Soils Metho f:_ 60108 • Metals (ICP) I -LP Client Sample ID: ARRI41-SO.16n4101217 Date Collected: 10/12/17 12:25 Date Received: 10/13/17 11:57 AnePitt. Arsenic Barium Cadmku+m Chromium Leal Selenium Silver Client Sample Results Resu Qualifier ND -0.29 , B Lot) A. ND 0.0054 r NU ND ND Client Sample 1D: AftRat- Q-2324-101217 Date Collected: 10/12/17 00:00 Date Received:10113/17 Arey1e Arsenic Barium Cadmium Chromium Lead Selenium Stier Result Clual ex Nib NO 0-0037 7', 4 ND ND ND Client Sample ID: A RR4 S O 23 24sl uj1217 Date Collected: /0/12117 1615 Date Received: 10113/17 411:57 And Aramaic Barium Cadmium Chromium Lead Selenium Silver Rea uh Qualifier NC -0.23 48 1,w~ . ��jj ND 0.0036 3` • ND NO ND Client Sample ID: ARR-4 0;313240121' Date Collected: 10/121/7 00:00 Date Received: 101/3/17 11:57 Anal Arsenic BOMB Cadmiu Chromium Lead Seietrilum Silver Rena Qualifier 0.4u-44 tdo0 N{1 NO ND ND ND Client Sample ID; ARRAS -SO -2930-101217 Date Collected: 10112117 10:00 Date Received: 10/13/17 11:57 Anatyta Araanlc Barium Result Quatltiert ND 'has 14,Ok.) 0 RL 0450 1.0 0.10 0•150 0.50 0.10 D.50 RL 0 50 1,0 0,10 0,50 0.50 010 050 RI 0.50 1.0 0410 0,50 0.50 0,10 0 50 RL 0.50 1.0 0.10 0.50 050 0.10 0.50 AL 0.50 1.0 Page 10 of 29 TestAmerica Job ID: 280-102328-1 AI. Unit 0,022 mqll. 0,0040 trig/L 0.0020 mg/I 0.0030 mg - 0,014 rng&. 04332 mgA. 0,0050 mg& SQL Unit 0.022 mkt 0.0040 mg/L. 0,01120 lm IL 0.0030 malt. 0.014 rng/I. 0,032 mg& 0,0050 mg11.. NIDL UM 0.022 mg& 0.0040 1T1 0.0020 mg!L 0.0030 mg'J�L. 0.014 mg/L. 0.032 mg/IL 0.0050 mg/ VOL UM 0(022 mgl 0.04 40 mg& 0,0020 mget. 11.0030. rn ii 0,014 mg1L 0.032 met 0-0050 rm , MDL Unit 0,022 mg1L 0-0041 mg"L Lab Sample ID: 280*102326-1 Matrix: Solid Prepared 10/214'17 07,24 10/23417 07.24 10/23/17 07:24 i0/23/17 07:24 10/23/17 07 24 10)23/17 07.24 101217 07.24 zed 10123117 16:51 1 0123 11 7 1541 101 23/17 1715:51 10123/17 15;51 10123/17 15:51 10431'1715:51 13'1715:51 Lab Sample ID: 230A 02326-2 Matrix: Solid D Peel:tared 10/23/17 07:24 1 0123/1 7 07:24 10123/17 07:24 1/23/17 0724 1C1/23/17 07'24 0123117 07:24 10/231/7 07:24 Q Anayae 101231417 15;54 10/23/17 15:54 1 0.'23117 15:54 10123117 15:54 10121715.54 '103/17 15;54 10123117 15; 54 D11 Fac 1 1 1 1 1 1 Lab Sample ID: 280-1023264 Matrix: Solid Prepared .1192.311-j" 074'4 10123/17 (P24 10/23/17 07:24 10/23/17 07:24 10/23117 07:24 13/1707:24 10/23/17 07:24 Analyzed 1023117154% 10117 15:56 10123117 15:56 104311715;56 1 f2j311 ' 1686 10/23/17 15:55 10123117 15:56 Oil Fee 1 1 1 1 1 1 Lab Sample ICI: 210-102326-4 Matrix: Solid D Prepared 16/23/17 07.24 10/23/17 0724 10123117 0724 10/23/17 07:24 10123/17 0724 10/23/17 07:24 1 0/2311 7 0714 Analyzed 10123117 1f5:50 10123/17 15;50 10123117 15.59 10/23/17 15:59 10 123/17 15;59 10/23111715:59 10/23/17 15:59 Lab Sample ID: 280-10232645 Matrixl Solid {7 Prepared Analyzed Oil Fat - 10123117 779.. b._ 0 :24 1043/1' ' '16:02 1W23117 07:24 10/2117 10:02 o•s r s.-- .. 1. I 1 TeStArneifICS Denver 10)26/2017 sal 4111 Client' GEl Consultants, Inc. Project/Site, Aurora Water North Campus Soils Method: 6a10B - Metals (I P) - Tc P (Continued) Client Sample ID: A RR4$0s 3O.101217 Date Collected: 10,1 2117 10:00 Date Received: 10/13117 11:67 Amain. Cadmium Chromium Lead Selenium Silver Brill Qualifier ND 0.0035 , NO ND ND Client Sample 10: A RR -4$O-2 2,14 01217 Date Collected: 1011211712:00 Date Received: 10/13147 11:57 Wyk Sylvania Barium Cadmium Chromium Lead Selenium &thmr Result Qualifier ND -0436-a-Eit Loki ND 0.0049 Y' NO ND ND Client Sample ID: ARR.-740-1920401217 Data Coll : 1011211714:3 2 Data Received: 10/13/1711:47 A — Arsenic Barium Cadmium Chromium Lead Selenium Sih mr Result Qual flea ND 1).50as 4� ND 0,061 3" r 2'E) ND I Client Sample ID ARR-114 -26284+101217 Date CoII c *d:10112/1715:21 Date Received; 10/13/17 11:57 Arista Arsenic Barium Cadmium Chromium Lead Selenium Silver Result Qualifier NO — Levu • (Loom 71* Nth NO NO ND Client Sample ID: ARR4-S -1920-101217 Date Collected: 10112117 11:01 Date Received:10113117/1 :57 Analyla Arsenio Barium Cadmium Ciwomf um Result Qiallffser ND .e.` s 15 i e - ND 0.0033 Client Sample Results Test me rl Job ID: 280-102326-1 RI Oslo 0.50 0.50 010 0.50 MILL Unit 0,0020 m0& 0.0030 ma& 0.0►14 m /L 0.032 mglL 0.0050 m /L DL Unit 0,50 0 022 m�/L 11 0.0040 m11- 0.10 0.0020 mom 0t50 0.0030 rt1g/t. 0.50 0.014 .'mo.. 0,10 T O 0.032 mg 0.50 0.0050 roil. 0.50 1_S 0.10 0.50 0.50 0,10 0.50 350 1.0 0.10 0.80 0.50 0,10 050 RI 0,50 1.0 0,102 0.50 MDL Unit 0,022 mg&L 0,.0040 rg/. �/ 0►. mgfL 0.0030 mg& 0,014 mg& 0.032 mg/... 0,0060 mg/L *DL. Unit 0,022 ms/L. 040040 mg - 0.0020 rrg .. 0.0030 mgal, 0014 nit 0,032 msJL 0.0060 mg& MDL Unit 0,022 mgt.. 0,0040 mg1L 0%0020 m /L 0,0030 mg. Lab Sample ID: 2804023264 Matrix: Solid D prepared 10/2347 /23,17 07:24 10/23/17 07:24 120'`17 07:24 10123/17 07'24 10123/17 07:24 D Anal 10123117 16:02 10/23/17 16:02 10123/17 16:02 13117 18:02 1012311716 02 Dil Fic 1 1 1 1 1 Lab Sample ID: 260-1023264 Matrix: Solid Prepared 123117 07:24 10/23/17 07:24 10123/17 0724 10/23/17 07:24 10123x+17 07°24 10/20'17 011'4 10/2307 07:24 Analyzed 145121/17111 1311718;17 10123/1718217 10/2317 161 7 10123/17 1817 10123117 18,17 1023/171&17 Lab Sample ID: 280-1023266-7 Matrix; Solid Prepared 10123/17 0724 10/23/17 0724 10/23/17 07:24 10/23/17 07'24 103117 07!24 10123117 07:24 1X311107: 4 Adialyvad 1 0/2311 7 16:20 1012301716:20 10/23117 1d:20 10/23117 16:20 1043.1127 18:20 11301718x20 10/23117 18:20 1 I 1 1 1 Lab Sample tO: 2804 023264 Matrix: Solid t7 Prepared Analyzed DO Fag 101423117 07:24 1# 1716:23 1 10/23+''17 07:24 10/21/17 16:23 101.23x'17 07:24 10/23/17 16:23 10123117 07:24 10123/17 143 23 1 10/3117 0724 10/23/17 18:23 1 1C1/23/17 07.24 10/23117 16723 1 10/3117 07:24 10023117 16`23 1 1 Lab Sample ID: 280-10232ea Matrix: Solid D Prepared Analyzed DII Fat 10123117 07_24 1012.3/17 1610 10123117 0724 24 10123/17 18:50 10/23/17 0724 10/23117 118:50 10123/17 0722 10123/17 10 5#1 1 1 1 TestAmerica Denver Page 11 of 29 10/2612017 a Client: El Consultants, Inc. P'roject,Site: Aurora Water North Campus Soils Client Sample Results Method: 60 1 0 .. ..._.,..._...,.7 <....,..,;>..». N ,.... Mims_ 8 Metals (1 5 `T+ LP (Continued) �. �4 �•.�lavwis t� Client Sample ID: A RR 940-1920-1 o 1217 Date Collected:/0112/17 11:01 Date Received: 10/13117 11 :57 Analyte Lard Selenium Sliver Rata Gunnar t4D ND ND Client Sample ID: ARR41 O- O-171 a -101217 Date Collected: 10/1 2117 04:35 Data Received: 10/13/1711:57 Analyt. Arsenic Barium Cadmium Chromium Lead Selenium Silver V NV Client Sample ID: F040-101217 Date Collected: 10112117 00:00 Date Received: 10/13111 11:57 asialyte Arsenic Barium Cadmium Chromi urn Lead Selenium SWv*r Client Sample ID: Ets10121721 Date Colk c : 10/12117 14;24 Date Received; 10/13117 11:57 Anatytar Arsenic Barium Cadnmiurm Chromitffn Lead Selenium Silver Ras u lac ND --4.24 ND 0.0031 ND ND ND 0ualliter lir 1 !00 • • Result tutu full ills r ND -too JO InoJ NO 010033 Y• ND ND ND R Result Qualifier 037 Jae lieu • ND ND ND ND N Method: 7470A -Mercury` (CVAA) - TCLP Client Sample ID: ARRe1 404617401217 Data Collected: 1 0/1 2117 12:25 Date Received: 10113/17 11:57 Amt' Result Qu zPiflarr Mercury ND M1O A,' at 0.50 0-10 0,50 TestAmerica Job ICY 280-102326-1 MDL Unit 0.014 rngiL 0.032 mg& 040050 mg/L. RL PAM, Unit 0.50 0,022 mIL 1,0 0.0040 molls 0.10 0.0020 molt 0.50 0,0030 mg&L 0.50 00114 nn. 0.10 0.032 mg/L 0.50 0.0050 mol... Rt. 0.50 f.0 0.10 0,50 0.50 0.10 0.50 MDL Unit 0.022 rnq/1 0,40 rng,i. 0.0420 mg& 0 0030 lg& 0.014 mg/L 0.032 mg& 0,0050 mg& RL kg% Unit 0450 0.022 m L 1.0 0,004�0&L y mg 0.10 0..0000 milk 0.50 040030 rng/t 0.50 0,014 mg& 0.10 0,032 rrr,WL 0.50 0,0050 mg&L Lab Semple ID: 210 1023264 Matrix: Solid D Prepared Analyzed DO Fat 10123/17 07:4 10O/1718:5 i - - 1 10/23/17 0724 10123117 16:50 10/23117 07:24 10+'23117 16:50 1 1 Lab Sample ID: 2 102326.10 Max: Solid D Prepared 10123/17 07724 10/23/17 07.24 10(23/17 07-24 1012311701:24 10123117 07:24 10123117 07:24 10123/17 07:24 Altelyzed 10123117 16:53 10/231171e:53 10/23/17 16:53 1 0/2311 7 15-53 1t 17 16:53 10123/1716:53 Lab Sample ID: MA02326011 Matrix: Solid Prepared Analyzed OH Fee 10/'23/17 07-24 10/23/17 16:68 1 10/23117 0714 10123117 16:56 1 173117 07':24 10t23117 10:56 1 10/23117 0714 10123/17 16:58 1 10/23/17 07:24 10123117 16:5 6 1 1 3117 0724 10/23/17 16'5 1 1012/117 07.24 10/23117 16:50 1 Lab Sample ID: 280 102326.12 Matrix: Water Prepared Analyzed 10119/11 14:24 I111OF17 Ofit 1W19/17 14:24 10120117 00:35 70/11/17 14:24 10120/17 Gt36 10119/17 1414 101201i7 7 00;35 10119/17 14:24 10/20/17 00:35 10/19/17 14:24 10120'17 00:3.5 7011 9171494 10,20/17 00:35 RL MDL Unit 0,002{3 0,000�3O mg/. Lab Sample ID: 280-'102325-1 Matrix: Solid D Prepared Analyzed Oil Fin 1 Ot2311A7e 1 i .fie iladrrirr18:0a 1 TeatAmerio. Denver Page 12 of 29 10/26/2017 Client: GE, Consultants, Inc. Project/Site. Aurora Water North Campus Soils Method: 7470A - Mercury (CVAA) - TCLP Client Sample ID: ARR- aS -2324.101217 Date Collected: 10/12/17 00:00 Date Retsina! 10113117 11:57 An alyr Mercury Client Sample Results Result Qualifier ND Client Sample ID: RRa3 O-2324-101217 Date Collected: 10112/17 16:25 Date Received: 10/13/1711.57 Ana► rla Mercury Result Qualifier ND Client Sample ID: ARR-4-+ ; 1 32♦1 0 1 2'l 7 Date Collected: 10112117 0000 Date Received: 1011311711:57 Anal Mercury -- Result Qualilliw NO Client Sample ID: AR.R-5-S 9ao4 o 1217 Date Collected: 10/12/17 10:00 Date Received: 10113/17 11 :57 Ant Mercury Result Qualifier NO Client Sample ID: ARR-4$O-23244101217 Date Collected: 10112117 12:0 Q Date Received: 10/13117 11:57 anes Mercury Result Qualifier Client Sample ID: ARK -7404920,101217 1920,101217 Date Collected: 10/12117 14:32 Data Received: 10/13117 11 :57 Amply,* Mercury Result Qualifier ND Client Sample ID: ARR4-4O-2+ 2$4 01217 Date Collected: 1011 211715:21 Date Received: 10/13/17 11:57 Analyte Mercury Result Qualifier NCB Client Simple ID: ARR-940•492o*1o121y Date Collected: 10/12/17 11:01 Date Received: 10/13111 11:57 Ana Marry TestAmarica Job I D : 280-4 0232&m 1 L AWL Unit 3,0020 040000'30 nigi - Rim I'rnit 0,00±dF - i_ �Q, 00s 0D30 mat' JCL MOL Unit 0.0020 o.000656 nit D Lab Sample ID; 280-1023264 Matrix: Solid Prepared Anted D11 Fat 10123117 11 :09 1X311718:1 d Lab Sample ID: 280a102326,E Matrix:. Solid D Prepared Analyzed, Dq Fac 10/23/17 1109 1OI2 1718:1T I 0 Lab Sample ID: 210-102326-4 Matrix: Solld Prepared Analyzed DiP Pao 71-0-/23.111 049 1 3/'17 1x:18 ww 1 Lab Sample ID: 2101023214 Matrix: Solid RL MDL unit _.w 0 Prepared Analyzed DIP Fe 040020 0,000030 milk10/2.311711409 10173117 1! 2! 1 Lab sample ID: 280-1023264 Matrix: Solid RL SOL Unit C1 Prepared Analysed DO Fac 0.0020 0.05 0030 mom- i0/23117 11: 1-01211/17 18:23 i Lab ample 10: 2110-102326-7 Matrix: Solid RL DAM Unit 13 Prepared Analyzed on Fat 0,1)020 04Ci4:41015Ni ntgil. 10/23111 11'. LfQ 10/2-3.017- 18:25 w 1 RL EDL Unit 0� .0020 6.00003+0 mi+L Result Qualifier RL MD1 Unit ND 0.0020 0.obco3Q n t Client Sam pie ID: ARR 1 O$O.171 s-101217 Date Collected: 10/12/17 08:35 Date Received: 10113/17 11:57 Anal httercury Result Quslil'lssr RI WIDL Unit 0,:7020 i'0.00(101O eft0IL Lab Sample ID: 210-1023264 Matrix: Solid D Prepared Analyzed Fac 10/23/17 11:09 1-0123(17 '18!32 Lab Sample ID: 2601.102326-e Matrix: Solid D Prepared Analyzed Oil Fee 10/23/17 111A 11)/23/t wais 1 Lab Sample ID: 280102326-10 Matrix: Solid o Prepared Analyzed DI' Fac 10,23117 t1;00 1 TeatAmerica Denver Page 13 of 29 10/26/201 7 8 Client: + EI Consultants,, Irc. Project/Site: Aurora Water Norril Campus soh Method: 747OA O Mercury ( V .)- T _ LP Client Sample ID: FD -SO -101217 Date Collected: 10112/17 00:00 Date Received: 10113/11 11:57 Anal Memory Client Sample, JD E 10121101 Date Collected 10/12/11 14:24 Date Received: 10113/17.11:57 AnalytQ mammy Client Sample Results flstAmetic. Job ID: 280••102326-1 Result Qualifier —145 Result Qualifier NO RL MDL t Iti 0:00i1) 0.000030 mit RL MDL Unit 0.002-0 6.000030 mutt Page 14 of29 Lab Staple ID: 280240232541 Mablx: Solid 0 Prepared Analyzed Oil Pic 13'17 11:.09 ¶h 18752 I Lob tenpli. ID: 2 102126.12 Maw: Water Prepay Analysed OH Fie ioiiUfat 11:56 iO,19117 18:12 MotArnerict Denver 10/2612017 8 6Z Jo LZ 86ed 0 a 10 TestAinfica Deriver •ir �� V or a Snot sirvidis CC MVO Phlegm (M3-1 7 1 Fiat C*3ti431•4171 itintt-rianwo Ramble Sion a r x'.14 Chain of Custody Record Ant s Requcstoo .a -r So, tsaacc..f Te.stAre�ca W•i+ 1.r++Sire ►*s f A draw to wiwito A-31IrL C-2s&aim 0- JIM Aque E -.4103041 F }Was - ACM -n0+�1 kg Maw D �t - The Dedetainya•artie Y - . a _ •cooduL:sers:-.1.11.1a 111111,"11113"1 *dr Sit r:'allra r ?' y L ry'S a Co Pa 40 r i ear Y .Stud COMM Piticffie N i1w Pin c j .7171 Chant ostar ;tornVVVVVV Otu 'SF LOA,: Arza., 401 Cr%% abild tat rt,t4N, law MAnt-`Water North iikedifitithan LAssierrt Seal l intbrril CcalTh Stall Nett* N Chain of Custody Record Gat Olwrsant AT Rspy+t 4�6 Pit Wet Arnie P4 map OC.11101C_COM 'nit inn.. w�a�.w. - - It-, Haat sate Cs Cbi+shy► M. Tr CI -Arms - Airs ASS a was LODA- V• *es N •Wet - p l Waal - i' S M-L7S►4s4 1'49" Una ;[j'. ICAO * 4'. �► tiocati al linstructionsiltilour, r It -as tsar sittamakar vt• Hello