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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 b :
Y
GEI Consultants, Inc.
4601 DTC Boulevard, Suite 900
Denver, CO 80237
November 16, 2015
Project 1329620
1 ≥7 Thom Daigle, P.
Project Manager
6mm.H,n 1c a vrla 2015-3726
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
Table of Contents
1 . Introduction 1 -1
1 . 1 Background 1 -1
1 .2 Previous Soil Sampling and Monitoring Activities 1 -1
2. Field Activities 2-1
2. 1 Utility Clearance 2-1
2.2 Soil Boring Program 2-1
2.3 Soil Sampling Program 2-1
2.4 Field Observations 2-2
2.5 Laboratory Testing 2-3
2.6 Quality Assurance / Quality Control (QA/QC) 2-3
2.7 Decontamination 2-3
2.8 Investigation-Derived Waste 2-4
2.9 Surveying 2-4
3. Sample Results 3-1
3. 1 Analytical Results 3-1
3.2 Data Management and Validation 3-1
3.3 Data Evaluation 3-1
3.4 Future Sampling and Data Analysis 3-2
4. Conclusions 4-1
5. References 5-1
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 Waters ARR Site A Location Map 1 -2
Figure 2: Sampling Locations 2-5
List of Appendices
Appendix A: Boring Logs
Appendix B: Data Validation Summary Report
Appendix C: Laboratory Analytical Report
Table of Contents I i
E Consult. „t,
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2014
Acronym and Abbreviations Used in This Report
Ag Silver
ARR Aquifer Recharge and Recovery
As Arsenic
Ba Barium
bgs Below Ground Surface
Ca Cadmium
City City of Aurora
Cr Chromium
EPA U .S. Environmental Protection Agency
ft Feet
ft bgs Feet Below Ground Surface
GEI GEI Consultants, Inc.
Hg Mercury
LPB Low Permeable Barrier
MDL Method Detection Limit
mg/L Milligrams per Liter
Pb Lead
PPE Personal Protective Equipment
QA/QC Quality Assurance/Quality Control
QAPP Quality Assurance Project Plan
RCRA Resource Conservation Recovery Act
RL Reporting Limit
Se Selenium
Site Fort Lupton , Colorado
TCLP Toxicity Characteristic Leaching Procedure
UNCC Utility Notification Center of Colorado
USR Use by Special Review
USR-1582 Prairie Waters Project
WCDPHE Weld County Department of Public Health and Environment
WSR Wilcoxon Signed-Rank
GEI Consultants, Inc. Table of Contents I ii
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
1 . Introduction
MEM
On behalf of City of Aurora (City) GEI Consultants, Inc. (GEI) 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 whether metals are accumulating in soils within the Low Permeable
Bather (LPB) boundary at the Site.
The Site is located at 2962 County Road 23, Fort Lupton, CO 80621 . It is located 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 (GEI, 2013). The work plan
was updated for 2015 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 third year of the initial 5-year annual sampling program
approved by WCDPHE.
1 .2 Previous Soil Sampling and Monitoring Activities
In March, 2012 CH2M 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 (CH2M Hill, 2012). The initial
sampling round was conducted prior to initiating the 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.
GEIIntroduction 11 -1
onsultants
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2014
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Summary Report, City of Aurora, Aquifer AS' Ift
Recharge and Recovery Site, Fort Lupton,
Colorado May 2012. CH2M Hill E 148th Ave
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North Campus ARR Site A Soil Monitoring PRAIRE WATERS ARR
Fort Lupton, Colorado SITE A LOCATION MAP
Aurora Water GE I Consultant;
Aurora , Colorado Project 1329620 November 2014 Fig 1
O Eng prolecIs11329620Aurora Water North Campus ARP Fig 1 mxd
Fig. 1 : Prairie Waters ARR Site A Location Map
GEI Consultants, Inc. Introduction 11 -2
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
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
(QAPP) prepared by GEI (GEI, 2014).
2.1 Utility Clearance
GEI retained Dakota Drilling, Inc. to perform the subsurface investigation. At least 72 hours
prior to performing subsurface work, GEI contacted the Utility Notification Center of
Colorado (UNCC) to identify any underground utilities on the Site. Dakota Drilling and GEI
also coordinated with Jason Lee (Site caretaker) to identify any other utilities not located by
UNCC.
Boring locations were pre-marked by City surveyors and an on-site utility meeting was held on
September 11 , 2015. All utilities were cleared by UNCC and drilling activities began on
September 17, 2015.
2.2 Soil Boring Program
On September 17 — 18, 2015 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
WCDPHE. 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 (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 cuttings were spread on the ground surface at least 50 feet away from the boring location.
Soil borings were backfilled with hydrated bentonite chips upon completion and boring
locations were staked to identify them 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. The soil was placed in a laboratory-provided
GEIField Activities 12-1
onsultants
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2014
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
all ten locations during 2015 drilling and sampling. Soil samples at ARR-5, ARR-7, and
ARR-9 were collected off of 3-inch outer diameter solid stem auger when soil recovery was
not achieved with direct push methods. All samples were collected below the observed water
table in the saturated zone.
2.4 Field Observations
GEI met with Dakota Drilling and the Site caretaker on September 17, 2015 to begin the soil
investigation. The Site caretaker provided access to each boring location and provided Site
knowledge about utility locations. Seven borings were completed on September 17, 2015
(ARR-1 , ARR-5, ARR-6, ARR-7, ARR-8, ARR-9, and ARR- 10) and the remaining three
borings were completed on September 18, 2015 (ARR-2, ARR-3, and ARR-4).
Boring logs and detailed soil descriptions are provided in Appendix A. Soil conditions
encountered across the Site ranged from tight clays to loose 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 4.5 and 26 feet bgs in all borings. All samples were
collected below the observed water table in the saturated zone.
Soils encountered in this year's investigation were less tight than in previous years. Direct
push drilling methods achieved the targeted sample depth at all locations except ARR-5 and
ARR-7 where solid stem augers were used to achieve the sample depth. Location ARR-9 did
not yield soil recovery using direct push methods and solid stem augers were used to achieve
sample depth.
GEI Consultants, Inc. Field Activities 12-2
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2014
2.5 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)
2.6 Quality Assurance / Quality Control (QA/QC)
QA/QC samples including one field duplicate and two equipment blanks 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. Two equipment
blanks (one per field day) were 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/QC analysis 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 B.
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.
GEI Consultants, Inc. Field Activities 12-3
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2014
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 by Dakota
Drilling.
2.9 Surveying
All soil borings were surveyed and staked 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 2-4
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2014
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NOTES:
1 . Figure from Soil Sampling and Monitoring
Summary Report. City of Aurora, Aquifer
Recharge and Recovery Site, Fort Lupton,
Colorado. May 2012. CH2M Hill.
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North Campus ARR Site A Soil Monitoring SAMPLING LOCATIONS
Fort Lupton, Colorado r I
Aurora Water C `-°'•s�Itant>
Aurora. Colorado Project 1329620 November 2014 Fig . 2
O1Eng_protects\1329620 Aurora Water North Campus ARR1Fig 2 mxd
Fig. 2: Sampling Locations
GEI Consultants, Inc. Field Activities 12-5
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
Table 1 : Summary of Sampling Rationale and Analyses, City of Aurora North Campus Aquifer Recharge and Recovery Site, Aurora, Colorado
Sample
Target Actual Location
Sample Sample Surface
Location Sample Sample Interval Interval Elevation Sample
ID Sample Name Media Location (ft bgs) (ft bgs) (ft) Type Rationale Analysis
Determine if metals are accumulating TCLP Metals
ARR-1 ARR-1 -SO-14.5-15.5-091715 Soil 9 ft north of A-10 15-16 15-16 4931 .31 Primary in soils located with the ARR Site A (EPA Methods 1311 /6010C/7470A)
LPB boundary soils
Determine if metals are accumulating TCLP Metals
ARR-2 ARR-2-SO-2223-091815 Soil 24 ft east of A-16 23-24 23-24 4926. 18 Primary in soils located with the ARR Site A (EPA Methods 131116010C/7470A)
• LPB boundary soils
Determine if metals are accumulating TCLP Metals
ARR-3 ARR-3-SO-2324-091815 Soil 25 ft north of A-22 23-24 23-24 4921 . 12 Primary in soils located with the ARR Site A (EPA Methods 1311/6010C/7470A)
. LPB boundary soils
Determine if metals are accumulating TCLP Metals
ARR-4 ARR-4-SO-2930-091815 Soil 50 ft northeast of A-26 29-30 29-30 4923.47 Primary in soils located with the ARR Site A (EPA Methods 1311/6010C/7470A)
LPB boundary soils
Determine if metals are accumulating TCLP Metals
ARR-5 ARR-5-SO-2830-091715 Soil 44 ft southwest of A-5 27-28 27-28 4939.35 Primary in soils located with the ARR Site A (EPA Methods 1311 /6010C/7470A)
LPB boundary soils
Determine if metals are accumulating TCLP Metals
ARR-6 ARR-6-SO-2324-091715 Soil 16 ft south of A-8 23-24 23-24 4934.91 Primary in soils located with the ARR Site A (EPA Methods 1311 /6010C/7470A)
LPB boundary soils
Determine if metals are accumulating TCLP Metals
ARR-7 ARR-7-SO-1920-091715 Soil 105 ft southeast of A-13 19-20 19-20 4931 .82 Primary in soils located with the ARR Site A (EPA Methods 1311 /6010C/7470A)
• LPB boundary soils
ARR-7 FD-SO-091415 Soil 105 ft southeast of A-13 19-20 19-20 4931 .82 Duplicate Show precision in field sample TCLP Metals
collection techniques (EPA Methods 1311/6010C/7470A)
Determine if metals are accumulating TCLP Metals
ARR-8 ARR-8-SO-2728-091715 Soil 32 ft east of A-3 27-28 27-28 4928.37 Primary in soils located with the ARR Site A (EPA Methods 1311 /6010C/7470A)
LPB boundary soils
Determine if metals are accumulating TCLP Metals
ARR-9 ARR-9-SO-1920-091715 Soil 108 ft southeast of A-4. 1 19-20 19-20 4931 .07 Primary in soils located with the ARR Site A (EPA Methods 1311 /6010O/7470A)
• LPB boundary soils
Determine if metals are accumulating TCLP Metals
ARR-10 ARR-10-SO-1920-0917-15 Soil 89 ft southeast of A-1 19-20 19-20 4933.69 Primary in soils located with the ARR Site A (EPA Methods 1311/6010C/7470A)
LPB boundary soils
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 12-6
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2014
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.
Sample ARR-06 detected 0.0043 mg/L of Mercury which is above the RL, but well below
the TCLP level of 0.2 mg/L. No other metals were detected above the RL in any sample.
Several metals were detected and qualified as `J' indicating the results were less than the
laboratory RL, but greater than the method detection limit (MDL) and are considered
approximate values.
Concentrations of Cd, Cr, Se, and Ag were not detected in any samples. As was detected in
one sample, but were qualified T. Pb was detected in four samples, but was quantified T.
Ba was detected in ten samples, but were quantified T .
All detections 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 C.
3.2 Data Management and Validation
Data were provided by Test America in electronic format and were imported into GEI's
EQuIS database management system. Data were validated using the criteria established in
the QAPP that was included in the 2015 Work Plan (GEI, 2015). A data validation summary
report is provided in Appendix B and concludes that all data are valid.
3.3 Data Evaluation
Data collected in September 2015 indicate that TCLP metal concentrations are generally the
same or lower than were reported from the previous year's sampling event (Table 2). All but
one detection were qualified `J' by the laboratory indicating that the results are below the RL,
but above the MDL and are considered approximate.
GEI 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 metals detected and the
laboratory `J' qualifier indicating the values are approximate. Performing a statistical
GEISample Results 13-1
onsultants
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
analysis on approximate data would not yield a high level of confidence in the statistical test
results.
Given the extremely low levels of metals detected, and the generally similar concentrations
this year compared to last year, GEI concludes that RCRA 8 metals are not accumulating in
soils within the LPB at the Site based on TCLP analysis.
3.4 Future Sampling and Data Analysis
A fifth sampling event is tentatively scheduled for October 2016. After the fifth sampling
event the viability of a statistical analysis will be evaluated. If it is considered appropriate, a
statistical analysis will be conducted to assess whether a statistically significant change in the
TCLP results is seen between the sampling events.
Future statistical analyses should consist of either a paired t-test or a Wilcoxon Signed-Rank
(WSR) test. The paired t-test is appropriate for use when the differences (between events)
are normally distributed, but more likely the nonparametric (no distributional assumption
necessary) WSR test will be used to test whether an overall shift occurs from one event to
another (or between the initial event and any subsequent event). Some practitioners use the
WSR test regardless of distribution to promote consistent comparisons for all constituents.
Should the association of locations between events become unreliable, the paired approach
could be discarded, and non-paired approaches such as the nonparametric WRS test can be
employed.
If future statistical analysis indicates that there is no evidence of accumulation in soil of
TCLP 8 metals within the LPB, then 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 . If
accumulation of TCLP 8 metals does occur between annual sampling events, then the
monitoring will continue on an annual basis and the results will be compared to the EPA
TCLP regulatory levels.
GEI Consultants, Inc. Sample Results 13-2
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
Table 2: ARR Summary Data Table
Chemical Name Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Units mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L
TCLP Limit (mg/L) 5 100 1 5 5 0.2 1 5
Sample Interval
Location Sample Date (ft)
ARR-01 3/7/2012 15-16 < 0.50 0. 15 JB < 0. 10 0.036 JB < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-01 10/10/2013 16-17 < 0.50 0. 11 J < 0. 10 0.0067 J < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-01 10/7/2014 15-16 < 0.50 0.30 JB < 0. 10 0.0072 J < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-01 09/17/2015 14.5-15.5 < 0.50 0.25 J < 0. 10 < 0.050 0.013 J < 0.0020 < 0. 10 < 0.50
ARR-02 3/6/2012 23-24 < 0.50 0. 19 JB < 0. 10 0.0095 JB < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-02 10/11 /2013 23-24 < 0.50 0. 12 J < 0. 10 < 0.50 < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-02 10/7/2014 23-24 < 0.50 0.20 JB < 0. 10 < 0.50 0.066 J < 0.0020 0.040 JB < 0.50
ARR-02 9/18/2015 22-23 < 0.50 0.099 J < 0. 10 < 0.50 < 0.50 < 0.0020 _ < 0. 10 < 0.50
ARR-03 3/6/2012 23-24 < 0.50 0.25 JB < 0. 10 0.027 JB < 0.50 < 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 10/8/2014 23-24 < 0.50 0.25 JB < 0. 10 0.0062 JB < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-03 9/18/15 23-24 < 0.50 0.28 J < 0. 10 0.0035 JB < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-04 3/6/2012 29-30 < 0.50 0.28 JB < 0. 10 0.0081 JB < 0.50 < 0.0020 0.030 J < 0.50
ARR-04 10/11 /2013 29-30 < 0.50 0.27 J < 0. 10 < 0.50 < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-04 10/8/2014 29-30 < 0.50 0.29 JB < 0. 10 0.0030 J < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-04 9/18/18 29-30 < 0.50 0.23 J < 0. 10 < 0.50 < 0.50 0.00010 JB < 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 10/10/2013 23-24 < 0.50 0.28 J < 0. 10 < 0.50 < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-05 10/8/2014 27-28 < 0.50 0.33 JB 0.0025 J 0.0046 J 0.045 J < 0.0020 < 0. 10 < 0.50
ARR-05 09/17/2015 28-30 < 0.50 0.42 J < 0. 10 0.0030 JB < 0.50 0.00011 JB < 0. 10 < 0.50
ARR-06 3/7/2012 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 9/17/15 23-24 < 0.50 0.20 J < 0. 10 < 0.50 0.072 J 0.0043 < 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 < 0. 10 < 0.50
ARR 07 DUP 10/7/2014 19-20 < 0.50 0.096 JB < 0. 10 < 0.50 0.015 J ` 0.0020 < 0. 10 < 0.50
ARR 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
GEI Consultants, Inc. Sample Results 13-3
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
Chemical Name Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Units mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L
TCLP Limit (mg/L) 5 100 1 5 5 0.2 1 5
Sample Interval
Location Sample Date (ft)
ARR-08 3/6/2012 27-28 < 0.50 0. 17 JB < 0. 10 0.0083 JB < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-08 DUP 3/6/2012 27-28 < 0.50 0.20 JB < 0. 10 0.0085 JB < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-08 10/10/2013 27-28 < 0.50 0. 13 J < 0. 10 < 0.50 < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-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-08 9/17/2015 27-28 < 0.50 0.054 J < 0. 10 < 0.50 < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-09 3/7/2012 19-20 < 0.50 0. 12 JB < 0. 10 0.0087 JB < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-09 10/10/2013 19-20 < 0.50 0. 19 J < 0. 10 0.0032 J < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-09 10/7/2014 19-20 < 0.50 0.38 JB < 0. 10 0.0063 J 0.070 J 0.000031 J < 0. 10 < 0.50
ARR-09 9/17/2015 19-20 < 0.50 0. 16 J < 0. 10 < 0.50 0. 10 J < 0.0020 < 0. 10 < 0.50
ARR-10 3/6/2012 19-20 < 0.50 0.30 JB < 0. 10 0.0092 JB < 0.50 < 0.0020 < 0. 10 0.0041 J
ARR-10 10/10/2013 19-20 < 0.50 0.20 J < 0. 10 < 0.50 < 0.50 < 0.0020 < 0. 10 < 0.50
ARR-10 10/8/2014 19-20 < 0.50 0.23 JB < 0. 10 0.012 J 0.032 J < 0.0020 < 0. 10 < 0.50
ARR-10 09/17/2015 19-20 < 0.50 0.32 J < 0. 10 < 0.50 < 0.50 < 0.0020 < 0. 10 < 0.50
Equipment Blank 3/7/2012 -- < 0.50 0.021 J < 0. 10 0.0062 J < 0.50 < 0.0020 < 0. 10 < 0.50
Equipment Blank 10/10/2013 -- < 0.50 0.0039 J < 0. 10 < 0.50 < 0.50 < 0.0020 < 0. 10 < 0.50
Equipment Blank 10/11 /2013 -- < 0.50 0.0063 J < 0. 10 < 0.50 < 0.50 < 0.0020 < 0. 10 < 0.50
Equipment Blank 10/7/2014 -- < 0.50 0.0096 JB < 0. 10 0.0031 JB < 0.50 < 0.0020 < 0. 10 < 0.50
Equipment Blank 10/8/2014 -- < 0.50 0.0076 JB < 0. 10 < 0.050 < 0.50 < 0.0020 < 0. 10 < 0.50
Equipment Blank 09/17/2015 -- < 0.50 < 0.0020 < 0. 10 < 0.050 < 0.50 < 0.0020 < 0. 10 <0.50
Notes:
< analyte concentration is less than referenced 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 analyte detected in method blank
mg/L milligrams per liter
TCLP -- Toxicity Characteristic Leaching Procedure
ft feet
GEI Consultants, Inc. Sample Results 13-4
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
4. Conclusions
A fourth round of soil samples was collected in September 2015 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 the previous year 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.
Analytical results indicate that As, Ba, and Pb were detected in at least one sample, 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. Sample ARR-06 detected 0.0043 mg/L of Hg. All detected
concentrations were well below the TCLP screening level published by the EPA. Cd, Cr, Se,
and Ag were not detected in any sample. In general, the concentration of detected metals
was similar to the baseline sampling event conducted in 2012. 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 RCRA 8 metals are not accumulating in soils
within the LPB at the Site.
GEIConclusions 14-1
onsultants
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
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. (2015). "Soil Sampling and Monitoring Work Plan," Prepared for
City of Aurora, North Campus Aquifer Recharge and Recovery Site. Fort Lupton,
Colorado, September.
GEIReferences 15-1
onsultants
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
Appendix A Boring Logs
RIF
G "
Boring Logs I Appendix A
Consultants
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
Appendix B Data Validation Summary Report
rar
G "
Data Validation Summary Report I Appendix B
Consultants
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
Appendix C Laboratory Analytical Report
rar
G "
Laboratory Analytical Report I Appendix C
Consultants
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
Appendix A Boring Logs
RIF
G "
Boring Logs I Appendix A
Consultants
BORING INFORMATION
NORTHING: 261937.23 EASTING: 184267.91 BORING
GROUND SURFACE EL. (ft): 4931 .3 DATE START/END: 9/17/2015 - 9/17/2015
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling ARR-1
TOTAL DEPTH (ft): 16.0 DRILLER NAME: Dan May
LOGGED BY: A. Misgen RIG TYPE: Geoprobe (R) PAGE 1 of 1
DRILLING INFORMATION
HAMMER TYPE: NA CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: NA
AUGER I.D/O.D.: 3 inch / NA DRILL ROD O.D.: NA inch CORE BARREL I.D./O.D.: 2.25 inch / 3 inch
DRILLING METHOD: Direct Push
WATER LEVEL DEPTHS (ft): V 13.5
ABBREVIATIONS: Pen. = Penetration Length S = Split Spoon Sample Qp = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured
Rec. = Recovery Length C = Core Sample Sv = Pocket Torvane Shear Strength Blows per 6 in.: 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 / Pen.,% SC = Sonic Core PI = Plasticity Index
WOR = Weight of Rods DP = Direct Push Sample PID = Photoionization Detector split spoon sampler.
WOH = Weight of Hammer HSA = Hollow-Stem Auger I.D./O.D. = Inside Diameter/Outside Diameter
Sample Information o
J
Elev. Depth Pen./ Blows Drilling Remarks/ 0
(ft) (ft) Sample Depth Field Test Data a Soil and Rock Description
No. (ft) Rec. per 6 in.
(in) or RQD c�
S-1 0 48/27 :;•.. 0 - 0.7 ft. WIDELY GRADED SAND with SILT and GRAVEL:
to 4 vi Mostly sand, fine to medium grained; 30% gravel, up to 1/2"; r
10% fines, nonplastic; moist; brown. (SW-SM)
0.7 - 8 ft. SANDY CLAY: Mostly fines, low plasticity; 35% sand,
fine to medium grained; 10% gravel; moist; dark brown. (CL)
S-2 to 48/48
5 8
S-3 8 48/23 Casing lost in hole 8-12 ft :: :• 8 - 13.5 ft. WIDELY GRADED SAND with GRAVEL: Mostly
to below ground surface. sand, medium to coarse grained; 15% gravel, subrounded, up
12 Move hole 1 ft south, Auger ;:;:; to 3/4 inch; <5% fines, nonplastic; moist. (SW)
4921 10 to 12 feet. Push probe • ,.
• . .
12-16 feet. • •: •
•
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S..•.
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.;.;.•
S-4 to 48/48 '.. .:...
S..•.
16 V •:•:•:• 13.5 - 16 ft. WIDELY GRADED SAND with GRAVEL: Mostly
sand, medium to coarse grained; 20% gravel, up to 1 inch; <5%
Sample collected ` ;';; fines; wet; light brown. (SP)
LO 15
ARR 1-SO 14.5-15.5-091715..'...:::.
Bottom of boring at depth 16 ft.
o Borehole backfilled with bentonite chips.
0
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o CITY/STATE: Fort Lupton, CO
o GEI PROJECT NUMBER: 1329620
0
GEI Consultants, Inc.Denver, CO 303.662.0100 G F, I
Q Consultants
BORING INFORMATION
NORTHING: 262411 .36 EASTING: 185994.59 BORING
GROUND SURFACE EL. (ft): 4926.2 DATE START/END: 9/18/2015 - 9/18/2015
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling ARR-2
TOTAL DEPTH (ft): 24.0 DRILLER NAME: Dan May
LOGGED BY: A. Misgen RIG TYPE: Geoprobe (R) PAGE 1 of 1
DRILLING INFORMATION
HAMMER TYPE: NA CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: NA
AUGER I.D/O.D.: NA / NA DRILL ROD O.D.: NA inch CORE BARREL I.D./O.D.: 2.25 inch / 3 inch
DRILLING METHOD: Direct Push
WATER LEVEL DEPTHS (ft): Q 6.0
ABBREVIATIONS: Pen. = Penetration Length S = Split Spoon Sample Qp = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured
Rec. = Recovery Length C = Core Sample Sv = Pocket Torvane Shear Strength Blows per 6 in.: 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 / Pen.,% SC = Sonic Core PI = Plasticity Index
WOR = Weight of Rods DP = Direct Push Sample PID = Photoionization Detector split spoon sampler.
WOH = Weight of Hammer HSA = Hollow-Stem Auger I.D./O.D. = Inside Diameter/Outside Diameter
Sample Information O)
0
J
Elev. Depth Pen./ Blows Drilling Remarks/ 2
(ft) (ft) Sample Depth Field Test Data a Soil and Rock Description
No. (ft) Rec. per 6 in. Co
(in) or RQD O
S-1 0 48/40 0 - 6 ft. CLAYEY SAND: Mostly sand, fine to medium grained;
to 30% fines, medium plasticity; 10% gravel, up to 1 inch; moist;
4 dark brown. (SC)
S-2 4 48/41 % 4 - 8 ft. LEAN CLAY with SAND: Mostly fines; low plasticity;
5 to 20% sand, fine grained; moist; dark brown. (CL) Wet beyond 6
8 feet.
S-3 8 48/23 Casing Clogged. Pull :-:•:• 8 - 16 ft. SAND: Mostly sand, fine to coarse grained; 10%
to casing, reset and sample. gravel, up to 1/2 inch; moist; light brown. (SW)
12 •:.•.
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. .
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4916 10
. . .:.•.
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o S-5 16 48/6 : 16 - 20 ft: SILTY SAND: Mostly sand, fine to coarse grained;
o to :• 20% fines, nonplastic; 10% gravel, up to 0.5 inch; wet; light
O 20 brown. (SM)
ui
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w4906 20 S-6 20 48/40 a. 20 - 24 ft: SANDY GRAVEL: Mostly gravel, up to 1 inch; 40%
O to r sand, medium to coarse grained; wet; light brown. (GW)
-, 24
O. •►•
O o Sample collected r•
w ARR-2-SO-2223-091815 •he
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www Bottom of boring at depth 24 ft.
Borehole backfilled with bentonite chips.
w
o NOTES: PowerProbe 9630 Pro on F450 PROJECT NAME: North Campus ARR Soil Samplinf Lit)
o CITY/STATE: Fort Lupton, CO
w GEI PROJECT NUMBER: 1329620
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cr GEI Consultants, Inc.Denver, CO 303.662.0100 G F, I
Q Consultants
BORING INFORMATION
NORTHING: 261484.27 EASTING: 186930.41 BORING
GROUND SURFACE EL. (ft): 4921 .1 DATE START/END: 9/18/2015 - 9/18/2015
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling ARR-3
TOTAL DEPTH (ft): 26.0 DRILLER NAME: Dan May
LOGGED BY: A. Misgen RIG TYPE: Geoprobe (R) PAGE 1 of 2
DRILLING INFORMATION
HAMMER TYPE: NA CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: NA
AUGER I.D/O.D.: NA / NA DRILL ROD O.D.: NA inch CORE BARREL I.D./O.D.: 2.25 inch / 3 inch
DRILLING METHOD: Direct Push
WATER LEVEL DEPTHS (ft): V 2.5
ABBREVIATIONS: Pen. = Penetration Length S = Split Spoon Sample Qp = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured
Rec. = Recovery Length C = Core Sample Sv = Pocket Torvane Shear Strength Blows per 6 in.: 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 / Pen.,% SC = Sonic Core PI = Plasticity Index
WOR = Weight of Rods DP = Direct Push Sample PID = Photoionization Detector split spoon sampler.
WOH = Weight of Hammer HSA = Hollow-Stem Auger I.D./O.D. = Inside Diameter/Outside Diameter
Sample Information O)
0
J
Elev. Depth Pen./ Blows Drilling Remarks/ O
(ft) (ft) Sample Depth Field Test Data a Soil and Rock Description
No. (ft) Rec. per 6 in. Co
(in) or RQD O
S1 0 48/37 0 - 2.5 ft. LEAN CLAY with SAND: Mostly fines, low to medium
to plasticity; 20% sand, fine to coarse grained; 10% gravel, fine;
4 moist; brown. (CL)
V
2.5 - 7 ft. FAT CLAY with SAND: Mostly fines, medium to high
plasticity; 20% sand, fine grained; wet; black. (CH)
to
I S2 4 48/38
::•:• 7- 8 ft. SAND: Mostly sand, fine to coarse grained; 10% fines,
_ nonplastic; wet; brown. (SW) 4 inch lense of orange silt.
S3 8 48/24 8 - 11 ft. CLAY: Mostly fines, low to medium plasticity; 10%
to sand, fine grained; wet; blue gray. (CL) 1 inch lenses of orange
12 silt.
4911 10
11 - 16 ft. SAND with SILT: Mostly sand, fine to coarse
grained; 20% fines, nonplastic; occasional gravel; wet; brown.
S4 12 48/27 (SM)
16
LO 15
v
o I- S5 16 48/33 iii.11."
16 - 26 ft. SAND with GRAVEL: Mostly sand, fine to coarse
o to grained; 30% gravel, fine grained; 10% fines, nonplastic; wet;
O 20 brown. (SW)
ui . . .
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24 sample for 23-24 ft sample ::::
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o CITY/STATE: Fort Lupton, CO
Lu o GEI PROJECT NUMBER: 1329620
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Q Consultants
NORTHING: 261484.27 EASTING: 186930.41 BORING
GROUND SURFACE EL. (ft): 4921 .1 DATE START/END: 9/18/2015 - 9/18/2015 ARR-3
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling
PAGE 2 of 2
Sample Information cn
O
J
Elev. Depth Pen./ Blows Drilling Remarks/ r Soil and Rock Description
(ft) (ft) Sample Depth Rec. per 6 in. Field Test Data p
No. (ft) (in) or RQD c.9
Bottom of boring at depth 26 ft.
Borehole backfilled with bentonite chips.
4891 30
35
4881 40
45
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o CITY/STATE: Fort Lupton, CO
o GEI PROJECT NUMBER: 1329620
GEI Consultants, Inc.Denver, CO 303.662.0100 GEI
Q Consultants
BORING INFORMATION
NORTHING: 260205.85 EASTING: 187066.92 BORING
GROUND SURFACE EL. (ft): 4923.5 DATE START/END: 9/18/2015 - 9/18/2015
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling ARR-4
TOTAL DEPTH (ft): 30.0 DRILLER NAME: Dan May
LOGGED BY: A. Misgen RIG TYPE: Geoprobe (R) PAGE 1 of 2
DRILLING INFORMATION
HAMMER TYPE: NA CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: NA
AUGER I.D/O.D.: NA / NA DRILL ROD O.D.: NA inch CORE BARREL I.D./O.D.: 2.25 inch / 3 inch
DRILLING METHOD: Direct Push
WATER LEVEL DEPTHS (ft): Q 4.5
ABBREVIATIONS: Pen. = Penetration Length S = Split Spoon Sample Qp = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured
Rec. = Recovery Length C = Core Sample Sv = Pocket Torvane Shear Strength Blows per 6 in.: 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 / Pen.,% SC = Sonic Core PI = Plasticity Index
WOR = Weight of Rods DP = Direct Push Sample PID = Photoionization Detector split spoon sampler.
WOH = Weight of Hammer HSA = Hollow-Stem Auger I.D./O.D. = Inside Diameter/Outside Diameter
Sample Information O)
O
Elev. Depth Pen./ Blows Drilling Remarks/ 0
(ft) (ft) Sample Depth Field Test Data a Soil and Rock Description
No. (ft) Rec. per 6 in. Co
(in) or RQD O
S1 0 48/31 0 - 4 ft. SILT with SAND: Mostly fines. nonplastic; 20% sand,
to fine grained; moist, brown. (ML)
4
S2 4 48/22 V 4 - 14 ft. SAND: Mostly sand, fine to coarse grained; 10%
5 to gravel, fine; brown; wet. (SW) 4 inch lense of medium plasticity
8 clay at 3 ft.
S3 8 48/0 No recovery. Probe stuck Sampler is wet from 8 -12 ft.
to in casing.
12
4914 10
S4 to 48/48
16
14 - 18 ft. LEAN CLAY with SAND: Mostly fines, low plasticity;
15 20% sand; fine to coarse grained; 10% gravel, fine; gray; wet.
LO (CL)
0
I-o S5 16 48/24
O 20
ui
Q -
a. - 18 - 30 ft. SILTY SAND: Mostly sand, fine to medium grained;
20% fines, nonplastic; wet; yellow brown. (SM)
Q
0 4904 20
iTi S6 20 48/29
a.
-, 24
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o NOTES: PowerProbe 9630 Pro on F450 PROJECT NAME: North Campus ARR Soil Samplinf citaii)
o CITY/STATE: Fort Lupton, CO
w GEI PROJECT NUMBER: 1329620
o
GEI Consultants, Inc.Denver, CO 303.662.0100 G F, I
Q Consultants
NORTHING: 260205.85 EASTING: 187066.92 BORING
GROUND SURFACE EL. (ft): 4923.5 DATE START/END: 9/18/2015 - 9/18/2015 ARR-4
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling
PAGE 2 of 2
Sample Information cn
O
J
Elev. Depth Pen./ Blows Drilling Remarks/ r Soil and Rock Description
(ft) (ft) Sample Depth Rec. per 6 in. Field Test Data p
No. (ft) (in) or RQD O
28
S8 28 24/24
30 Sample collected
4894 30 ARR-4-SO-2930-091815
Bottom of boring at depth 30 ft.
Borehole backfilled with bentonite chips.
35
4884 40
45
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0
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o CITY/STATE: Fort Lupton, CO
o GEI PROJECT NUMBER: 1329620
GEI Consultants, Inc.Denver, CO 303.662.0100 GEI
Q Consultants
BORING INFORMATION
NORTHING: 259611 .27 EASTING: 184009.09 BORING
GROUND SURFACE EL. (ft): 4939.4 DATE START/END: 9/17/2015 - 9/17/2015
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling ARR-5
TOTAL DEPTH (ft): 32.0 DRILLER NAME: Dan May
LOGGED BY: A. Misgen RIG TYPE: Geoprobe (R) PAGE 1 of 2
DRILLING INFORMATION
HAMMER TYPE: NA CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: NA
AUGER I.D/O.D.: 3 inch / NA DRILL ROD O.D.: NA inch CORE BARREL I.D./O.D.: 2.25 inch / 3 inch
DRILLING METHOD: Direct Push
WATER LEVEL DEPTHS (ft): V 19.0
ABBREVIATIONS: Pen. = Penetration Length S = Split Spoon Sample Qp = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured
Rec. = Recovery Length C = Core Sample Sv = Pocket Torvane Shear Strength Blows per 6 in.: 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 / Pen.,% SC = Sonic Core PI = Plasticity Index
WOR = Weight of Rods DP = Direct Push Sample PID = Photoionization Detector split spoon sampler.
WOH = Weight of Hammer HSA = Hollow-Stem Auger I.D./O.D. = Inside Diameter/Outside Diameter
Sample Information o
J
Elev. Depth Pen./ Blows Drilling Remarks/ 0
(ft) (ft) Sample Depth Field Test Data a Soil and Rock Description
No. (ft) Rec. per 6 in. Co
(in) or RQD O
S1 0 48/24 7 0 _ 8 ft. LEAN CLAY with SAND: Mostly fines, medium
to / plasticity; 20% sand, coarse grained; slightly moist; brown. (CL)
4
S2 to 48/48
5 8
-
S3 8 48/42 8 - 12 ft. SILT with SAND: Mostly fines, nonplastic; 30% sand,
to fine to medium grained; moist; tan to orange. (ML)
12
4929 10
S4 12 48/32 ::•:• 12 - 20 ft. SAND: Mostly sand, fine to medium grained; 10%
to .:•:• coarse grained sand; occasional gravel, fine; moist; tan to
16 " '
orange. (SW)
..•-.
:•....
— . . . .
At 14 ft, 2 inch lense nonplastic fines.
::.•.
to 15
:. •
. .
v •:•:•:
•....
o - •.•::
S5 16 48/20 ..........
. .
I- .
c.9 20 .., .
:..•.
u; .......
Q •.•::
a ... .
ui V ::.•.
w •. .
~ •••::•' At 19 ft, 2 inch lense medium plasticity fines; wet.
LQ •.
I.-•.:•e
0 4919 20
I S6 20 48/0 No recovery. 7. 20 - 32 ft. CLAYEY SAND with GRAVEL. Mostly sand, fine to
0 to 24 . . coarse grained; 30% fines, medium plasticity; 20% gravel, fine;
-, wet; orangeish brown. (SC)
0 •.
o
om
.�/ ,
a.
a
www S7 24 48/0 No recovery.
to
w
o NOTES: PowerProbe 9630 Pro on F450. 3 inch solid stem augers PROJECT NAME: North Campus ARR Soil Samplinf kJ)
o CITY/STATE: Fort Lupton, CO
Lu o GEI PROJECT NUMBER: 1329620
O
GEI Consultants, Inc.Denver, CO 303.662.0100 G F, I
Q Consultants
NORTHING: 259611 .27 EASTING: 184009.09 BORING
GROUND SURFACE EL. (ft): 4939.4 DATE START/END: 9/17/2015 - 9/17/2015 ARR-5
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling
PAGE 2 of 2
Sample Information cn
O
J
Elev. Depth Pen./ Blows Drilling Remarks/ r Soil and Rock Description
(ft) (ft) Sample Depth Rec. per 6 in. Field Test Data p
No. (ft) (in) or RQD 0
28
S8 28 48/0 No Recovery. Switch to
to augers, collect sample from
32 auger twists.
4909 30 ySample collected •
ARR-5-SO-2890-091715 lrl
Bottom of boring at depth 32 ft.
Borehole backfilled with bentonite chips.
35
4899 40
45
0
0
r
H
a
w 4889 50
Q
J
d
2
UJ
I-
Q
O
Q.
ci
0
55
w
m
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a
O
w
w
o NOTES: PowerProbe 9630 Pro on F450. 3 inch solid stem augers PROJECT NAME: North Campus ARR Soil Samplinc Liti)
o CITY/STATE: Fort Lupton, CO
o GEI PROJECT NUMBER: 1329620
GEI Consultants, Inc.Denver, CO 303.662.0100 GEI
Q Consultants
BORING INFORMATION
NORTHING: 261000.42 EASTING: 185072.90 BORING
GROUND SURFACE EL. (ft): 4934.9 DATE START/END: 9/17/2015 - 9/17/2015
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling ARR-6
TOTAL DEPTH (ft): 24.0 DRILLER NAME: Dan May
LOGGED BY: A. Misgen RIG TYPE: Geoprobe (R) PAGE 1 of 1
DRILLING INFORMATION
HAMMER TYPE: NA CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: NA
AUGER I.D/O.D.: NA / NA DRILL ROD O.D.: NA inch CORE BARREL I.D./O.D.: 2.25 inch / 3 inch
DRILLING METHOD: Direct Push
WATER LEVEL DEPTHS (ft): Q 7.0
ABBREVIATIONS: Pen. = Penetration Length S = Split Spoon Sample Qp = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured
Rec. = Recovery Length C = Core Sample Sv = Pocket Torvane Shear Strength Blows per 6 in.: 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 / Pen.,% SC = Sonic Core PI = Plasticity Index
WOR = Weight of Rods DP = Direct Push Sample PID = Photoionization Detector split spoon sampler.
WOH = Weight of Hammer HSA = Hollow-Stem Auger I.D./O.D. = Inside Diameter/Outside Diameter
Sample Information o
J
Elev. Depth Pen./ Blows Drilling Remarks/ 0
(ft) (ft) Sample Depth Field Test Data a Soil and Rock Description
No. (ft) Rec. per 6 in. Co
(in) or RQD o
S1 0 48/30 0 - 4 ft. SANDY SILT: Mostly fines, nonplastic; 30% sand, fine
to grained; dark brown; moist. (ML)
4
S2 4 48/48 r 4 - 10 ft. LEAN CLAY: Mostly fines, low to medium plasticity;
5 to 10% sand, fine grained; dark brown; moist. (CL)
8
V
Wet beyond 7 ft.
S3 t8o 48/34
12
4925 10
10 - 11 ft. SILTY SAND: Mostly sand, fine grained; 20% fines,
nonplastic; brown; wet. (SM)
r11 - 15.5 ft. LEAN CLAY: Mostly fines, low plasticity; wet;
S4 to 12 48/18
j gray-brown. (CL)
16
LO 15
15.5 - 24 ft. SAND with GRAVEL: Mostly sand, fine to coarse
o S5 16 48/24 grained; 30% fines, medium plasticity; 20% gravel up to 1 .5
o to •:•:•:. inch; wet; brown. (SW)
q 20 .
., •
• •
. •
W : e.
.. .. . .
Q S., .
S. •
.
a .
S..•.
w .. .•.
•.•..•
i •.•. .
O 4915 20 S•.•••
:::.
iTi S6 to 48/46
. . . .
.. . .
24 ••••• .
. • •
O . . .
.. . .
r^ .•.•. .
S.o .•.
...•.
-' ::.•.
w . . .
o Sample collected ••..•...•.a ARR-6-SO-2324-091715
o
Bottom of boring at depth 24 ft.
o Borehole backfilled with bentonite chi s.
w
o NOTES: PowerProbe 9630 Pro on F450 PROJECT NAME: North Campus ARR Soil Samplinf kJ)
o CITY/STATE: Fort Lupton, CO
o GEI PROJECT NUMBER: 1329620
O
a GEI Consultants, Inc.Denver, CO 303.662.0100 G F, I
Consultants
a
BORING INFORMATION
NORTHING: 261748.29 EASTING: 185452.85 BORING
GROUND SURFACE EL. (ft): 4931 .8 DATE START/END: 9/17/2015 - 9/17/2015
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling ARR-7
TOTAL DEPTH (ft): 20.0 DRILLER NAME: Dan May
LOGGED BY: A. Misgen RIG TYPE: Geoprobe (R) PAGE 1 of 1
DRILLING INFORMATION
HAMMER TYPE: NA CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: NA
AUGER I.D/O.D.: 3 inch / NA DRILL ROD O.D.: NA inch CORE BARREL I.D./O.D.: 2.25 inch / 3 inch
DRILLING METHOD: Direct Push
WATER LEVEL DEPTHS (ft): Q 6.5
ABBREVIATIONS: Pen. = Penetration Length S = Split Spoon Sample Qp = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured
Rec. = Recovery Length C = Core Sample Sv = Pocket Torvane Shear Strength Blows per 6 in.: 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 / Pen.,% SC = Sonic Core PI = Plasticity Index
WOR = Weight of Rods DP = Direct Push Sample PID = Photoionization Detector split spoon sampler.
WOH = Weight of Hammer HSA = Hollow-Stem Auger I.D./O.D. = Inside Diameter/Outside Diameter
Sample Information o
J
Elev. Depth Pen./ Blows Drilling Remarks/ 0
(ft) (ft) Sample Depth Field Test Data a Soil and Rock Description
No. (ft) Rec. per 6 in. Co
(in) or RQD c9
S1 0 48/40 •
0 - 4 ft. SILTY SAND: Mostly sand, fine grained; 40% fines,
to = nonplastic; moist; brown. (SM)
4
S2 4 48/40 ••• 4 - 9 ft. NARROWLY GRADED SAND with SILT: Mostly sand,
5 to . fine grained; 10% fines, nonplastic; moist; brown. (SP-SM)
8
—
Wet beyond 6.5 ft.
S3 t8o 48/43
12 :.:.•;;;;) 9 - 12 ft. Interbedded SAND and CLAY: SAND, fine to coarse
4922 10 • •* sand; 20% fines, nonplastic; wet; brown. (SW) CLAY, medium
: i plasticity, dark brown, wet. (CL)
• :
•
je
;•• 1
S4 12 48/48 Sample recovered :;: 12 - 20 ft. SAND with GRAVEL: Mostly sand, fine to coarse
to bentonite. Move hole 1 ft •:•:•:• grained; 15% gravel, fine; brown; wet. (SW)
west auger to 20 ft.
16 • •
••. •
::.•.
. .
.......
S.' .
:o •. .
to 15
::.•.
v ':••:•:
•. .•:
o S5 16 48/0 Collect sample off auger :::::::
I- . . . .
o to twist. ::.•.
0 20 .., .
.......
u;u; . . .
.•••.;
Q •.•..
.•••:
a :::•:
2 S..•.
w ...•.
•
Q Sample collected '•.•. .
O 4912 20 ARR-7-SO-1920-091715 -:•
I Bottom of boring at depth 20 ft.
o Borehole backfilled with bentonite chips.
0.
ci
0
0
J
u_I
m
o
cc
0..
o
w
0
w
o NOTES: PowerProbe 9630 Pro on F450. 3 inch solid stem augers PROJECT NAME: North Campus ARR Soil Samplinf kJ)
o CITY/STATE: Fort Lupton, CO
w GEI PROJECT NUMBER: 1329620
O
GEI Consultants, Inc.Denver, CO 303.662.0100 G F, I
Q Consultants
BORING INFORMATION
NORTHING: 260351 .31 EASTING: 186066.35 BORING
GROUND SURFACE EL. (ft): 4928.4 DATE START/END: 9/17/2015 - 9/17/2015
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling ARR-8
TOTAL DEPTH (ft): 28.0 DRILLER NAME: Dan May
LOGGED BY: A. Misgen RIG TYPE: Geoprobe (R) PAGE 1 of 2
DRILLING INFORMATION
HAMMER TYPE: NA CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: NA
AUGER I.D/O.D.: 3 inch / NA DRILL ROD O.D.: NA inch CORE BARREL I.D./O.D.: 2.25 inch / 3 inch
DRILLING METHOD: Direct Push
WATER LEVEL DEPTHS (ft): V 11 .0
ABBREVIATIONS: Pen. = Penetration Length S = Split Spoon Sample Qp = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured
Rec. = Recovery Length C = Core Sample Sv = Pocket Torvane Shear Strength Blows per 6 in.: 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 / Pen.,% SC = Sonic Core PI = Plasticity Index
WOR = Weight of Rods DP = Direct Push Sample PID = Photoionization Detector split spoon sampler.
WOH = Weight of Hammer HSA = Hollow-Stem Auger I.D./O.D. = Inside Diameter/Outside Diameter
Sample Information o
J
Elev. Depth Pen./ Blows Drilling Remarks/ 0
(ft) (ft) Sample Depth Field Test Data a Soil and Rock Description
No. (ft) Rec. per 6 in. Co
(in) or RQD O
S1 0 48/31 0 - 7.5 ft. SANDY SILT: Mostly fines, nonplastic; 20% sand,
to fine grained; 10% gravel, fine; moist; dark brown. (ML)
4
S2 to 48/25
5 8
7.5 - 11 ft. LEAN CLAY: Mostly fines, low to medium plasticity;
S3 8 48/30 10% sand, fine grained; moist; dark gray. (CL)
to
12
4918 10
VI A
- • • 11 - 28 ft. WIDELY GRADED SAND with SILT and GRAVEL:
Mostly sand, fine to coarse grained; 20% gravel, up to 1/2 inch;
S4 12 48/36 • •:• 10% fines, nonplastic; wet. (SW-SM)
to ....•••
16 • •4•.'.
.0.4...
. . . .
..•.
: •
. .
.•..•.
.. •
. .
. , .
.,.,.,.
to 15 '.•4•..
r -.•,
. . . .
v ...•.
0::.•.
o ...•.
I- S5 16 48/48 No recovery. Sand and
to gravel clogging casing.
0 20
u; Switch to augers. •
;:;
i- . . . .
::.•.
..`5 ; ;.;
/
• . .
.L p,.,.,.
2 •.•,'.'
w . . . .
H .•.'.'
. . . .
Q ..•.
F- .:. .
0 4908 20 '•' '•'
I S6 20 48/48 Logged auger cuttings. :::;:::
0 to
24 4'''
•.
^ :..
0v ::.•.
. ;•:.•.
:• .:
v • .
o ••s . .
J ' ' '
. . .
w : : . :
• ' •
m ::.•.
O ::.•.
cc :: •
. .
0
Lu 24 Attempted probe sample. :••::•:
0 S7 to 48/48 Hole sloughed, sampler ::;
w
o NOTES: PowerProbe 9630 Pro on F450. 3 inch solid stem augers PROJECT NAME: North Campus ARR Soil Samplinc kJ)
o CITY/STATE: Fort Lupton, CO
Lu o GEI PROJECT NUMBER: 1329620
O
GEI Consultants, Inc.Denver, CO 303.662.0100 G F, I
Q Consultants
NORTHING: 260351 .31 EASTING: 186066.35 BORING
GROUND SURFACE EL. (ft): 4928.4 DATE START/END: 9/17/2015 - 9/17/2015 ARR-8
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling
PAGE 2 of 2
Sample Information cn
O
J
Elev. Depth Pen./ Blows Drilling Remarks/ r Soil and Rock Description
(ft) (ft) Sample Depth Rec. per 6 in. Field Test Data a p
No. (ft) (in) or RQD c.9
28 broke off down hole. Pulled
casing, collected sample
out of casing.
.. ;.;.
.,. .,.
Sample collected
• •
ARR-8-SO-2728-091715
• Bottom of boring at depth 28 ft.
Borehole backfilled with bentonite chips.
4898 30
35
4888 40
45
0
0
r
H
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w 4878 50
I
a
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2
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55
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w
o NOTES: PowerProbe 9630 Pro on F450. 3 inch solid stem augers PROJECT NAME: North Campus ARR Soil Samplinc Liti)
o CITY/STATE: Fort Lupton, CO
o GEI PROJECT NUMBER: 1329620
GEI Consultants, Inc.Denver, CO 303.662.0100 GEI
Q Consultants
BORING INFORMATION
NORTHING: 260373.69 EASTING: 185507.38 BORING
GROUND SURFACE EL. (ft): 4931 .1 DATE START/END: 9/17/2015 - 9/17/2015
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling ARR-9
TOTAL DEPTH (ft): 20.0 DRILLER NAME: Dan May
LOGGED BY: A. Misgen RIG TYPE: Geoprobe (R) PAGE 1 of 1
DRILLING INFORMATION
HAMMER TYPE: NA CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: NA
AUGER I.D/O.D.: 3 inch / NA DRILL ROD O.D.: NA inch CORE BARREL I.D./O.D.: 2.25 inch / 3 inch
DRILLING METHOD: Direct Push
WATER LEVEL DEPTHS (ft): V 12.0
ABBREVIATIONS: Pen. = Penetration Length S = Split Spoon Sample Qp = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured
Rec. = Recovery Length C = Core Sample Sv = Pocket Torvane Shear Strength Blows per 6 in.: 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 / Pen.,% SC = Sonic Core PI = Plasticity Index
WOR = Weight of Rods DP = Direct Push Sample PID = Photoionization Detector split spoon sampler.
WOH = Weight of Hammer HSA = Hollow-Stem Auger I.D./O.D. = Inside Diameter/Outside Diameter
Sample Information o
J
Elev. Depth Pen./ Blows Drilling Remarks/ 0
(ft) (ft) Sample Depth Field Test Data a Soil and Rock Description
No. (ft) Rec. per 6 in. Co
(in) or RQD c�
S1 0 48/41 0 - 4.5 ft. SILTY SAND: Mostly sand, fine to medium grained;
to 20% coarse grained sand; 30% fines, nonplastic; <5% gravel,
4 •: fine; brown; moist. (SM)•S2 to 48/36 :: 4.5 - 20 ft. SAND with GRAVEL. Mostly sand, fine to coarse
5
8 •'• grained; 25% gravel, fine; moist; tan to brown. (SW)
::.•.
• . .
•.:••
S.• .•.
S..•.
S..•.
S..•.
.;.:.;.
S3 t8o 48/28 :•:•:•:
S . . .
12 •.•. •
:..•.
•..•.
::.•.
4921 10 ......•
...• .
. . .
S..•.
S4 12 48/12 No recovery. Switch to :•:•.: Wet beyond 12 ft.
to augers. Auger to 20 ft.
16 • • . •
::.•.
::.•.
•.•.•.
. . . .
••••
to 15
•▪ •• .•.
•....:
S5 to 48/48
O ::• .•.
20 • .•.
::.-.
Li;•••
• •4o
J .•.
a :::•:
2 S..•.
w ::.•.
Q Collect sample off auger ;..
0 4911 20 ' twist.
Sample collected Bottom of boring at depth 20 ft.
c� ARR-9-SO-1920-091715 Borehole backfilled with bentonite chips.
a.
ci
0
0
J
W
m
0
CC
a
0
w
w
o NOTES: PowerProbe 9630 Pro on F450. 3 inch solid stem augers PROJECT NAME: North Campus ARR Soil Samplinc kJ)
o CITY/STATE: Fort Lupton, CO
o GEI PROJECT NUMBER: 1329620
0
GEI Consultants, Inc.Denver, CO 303.662.0100 G F, I
Q Consultants
BORING INFORMATION
NORTHING: 259403.11 EASTING: 185143.65 BORING
GROUND SURFACE EL. (ft): 4933.7 DATE START/END: 9/17/2015 - 9/17/2015
VERTICAL DATUM: NAVD 88 DRILLING COMPANY: Dakota Drilling ARR-1 0
TOTAL DEPTH (ft): 20.0 DRILLER NAME: Dan May
LOGGED BY: A. Misgen RIG TYPE: Geoprobe (R) PAGE 1 of 1
DRILLING INFORMATION
HAMMER TYPE: NA CASING I.D./O.D.: NA/ NA CORE BARREL TYPE: NA
AUGER I.D/O.D.: NA / NA DRILL ROD O.D.: NA inch CORE BARREL I.D./O.D.: 2.25 inch / 3 inch
DRILLING METHOD: Direct Push
WATER LEVEL DEPTHS (ft): V 11 .5
ABBREVIATIONS: Pen. = Penetration Length S = Split Spoon Sample Qp = Pocket Penetrometer Strength NA, NM = Not Applicable, Not Measured
Rec. = Recovery Length C = Core Sample Sv = Pocket Torvane Shear Strength Blows per 6 in.: 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 / Pen.,% SC = Sonic Core PI = Plasticity Index
WOR = Weight of Rods DP = Direct Push Sample PID = Photoionization Detector split spoon sampler.
WOH = Weight of Hammer HSA = Hollow-Stem Auger I.D./O.D. = Inside Diameter/Outside Diameter
Sample Information
0
J
Elev. Depth Pen./ Blows Drilling Remarks/ O
(ft) (ft) Sample Depth Field Test Data a Soil and Rock Description
No. (ft) Rec. per 6 in. co
(in) or RQD c�
S-1 0 48/37 0 - 2 ft. SANDY CLAY: Mostly fines, low to medium plasticity;
to 30% sand, fine to coarse grained; 10% gravel; moist; dark
4 brown; moist. (CL)
2 - 7 ft. SILTY SAND: Mostly sand, fine grained; 30% fines,
• nonplastic; <5% sand, coarse grained; moist; red brown. (SM)
5
7 - 8.5 ft. SAND: Mostly sand, fine to coarse grained; 10%
fines, nonplastic; moist; light brown. (SP)
• / 8.5 - 9 ft: CLAY: Mostly fines, low - medium plasticity; 10%
sand, fine grained; brown; moist. (CL)
4924 10 9 - 17 ft: SILTY SAND: Mostly sand, fine to coarse grained;
20% fines, nonplastic; 10% gravel; light brown; moist. (SM)
Wet beyond 11 .5 ft.
S-4
12 48/0 No recovery. Pull probe ;
• casing to clear tip. Reset
16 casing to sample 16 - 20 ft.
•
to 15
v
0
o S-5 16 48/48 -
O 20 o
17 - 20 ft: SILTY CLAY: Mostly fines, low plasticity; 30% fines,
nonplastic; brown, wet. (CL-ML)
0
w
Sample collected
O 4914 20 ARR-10-SO-1920-091715
Bottom of boring at depth 20 ft.
c� Borehole backfilled with bentonite chips.
a.
ci
0
O
J
W
m
O
cc
a
O
w
w
o NOTES: PowerProbe 9630 Pro on F450 PROJECT NAME: North Campus ARR Soil Samplinf Lit)
o CITY/STATE: Fort Lupton, CO
o GEI PROJECT NUMBER: 1329620
O
GEI Consultants, Inc.Denver, CO 303.662.0100 G F, I
Q Consultants
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
Appendix B Data Validation Summary Report
rar
G "
Data Validation Summary Report I Appendix B
Consultants
v
G El Consultants
Pershing Point Plaza Ph: (404) 592-0050
1375 Peachtree Street NE, Suite A15
Atlanta, GA 30309
Memorandum
To: Tom Daigle
From: Andrea Brazell
Regarding: Data Validation for Aurora Water North Campus Aquifer and Recharge and
Recovery Site A
Date: October 23, 2015
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 Start Date — September 17, 2015
Sample End Date — September 18, 2015
Number Samples Collected - 10 Soils
Number Sample Duplicates Collected - 1 Soil
Number of Equipment Blanks Submitted - 2 Equipment blank samples
Sample Delivery Groups - 1 (Test America Report 280-74417- 1 )
SAMPLES
Samples included in this review are listed below:
ARR-6-SO-2324-091715 EB-091715-01 ARR-2-SO-2223-091815
ARR-8-SO-2728-091715 FD-SO-091715 ARR-3-SO-2324-091815
ARR-7-SO-1920-091715 ARR- I 0-SO- 1 920-09 1 7 1 5 EB-091815-01
ARR-5-SO-2830-091715 ARR-9-SO-1920-091715
ARR- 1 -SO-14.5-15.5-091715 ARR-4-SO-2930-091815
' Field duplicate of ARR-7-SO- 1920-091715
The samples were analyzed for TCLP Metals using SW-846 Methods 1311/6010B/7470A.
QA/QC Items Evaluated
Data Validation — Aurora Water — North Campus Soil Sampling
October 23, 2015
Page 2
• 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
All samples were received at the laboratory in good condition at the appropriate temperature.
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 analytes except where noted below.
Metals SW-846 Method 6010B
Batch 298024: Chromium (0.00480 J mg/L) was detected below the reporting limit (RL) in
method blank LB 280-287555/1 -A, which was associated with all soil samples. Detections in
associated samples were set to non-detect at the reporting limit where sample concentrations
were greater than the Method Detection Limit (MDL) and less than the RL.
Batch 297718: Barium (0.00585 J mg/L) was detected below the reporting limit in method
blank LB3 280-296148/1 -B, which was associated with samples EB-091715-01 and EB-091815-
01 . Barium was not detected in the associated samples, therefore no data validation action was
required.
Batch 297360: Mercury (0.000173 J mg/L) was detected below the reporting limit (RL) in
method blank LB 280-296155, which was associated with all soil samples. Detections in
associated samples were set to non-detect at the reporting limit where sample concentrations
were greater than the Method Detection Limit (MDL) and less than the RL.
Lab Control Spikes
Data Validation — Aurora Water — North Campus Soil Sampling
October 23, 2015
Page 3
All criteria were met.
Matrix Spike / Matrix Spike Duplicates
MS/MSD analyses were performed on sample ARR-8-SO-2728-091715 for ICP metals and
mercury and on sample EB-091715-01 for mercury. All recovery and precision criteria were met
in these analyses.
Samples Requiring Dilution
Dilutions were not required.
Equipment Blanks
Equipment blank samples were free of target analytes.
Field Duplicates
The field duplicate pair ARR-7-SO- 1920-091715/FD-SO-091715 was identified. Field
duplicates were evaluated for precision by calculating the relative percent difference between
analytes detected in the Normal and Duplicate samples submitted for analysis. The relative
percent difference is defined as the quantitative measure of the variability of a group of
measurements compared to their average values.
The following table summarizes the RPDs of the detected analytes in the field duplicate pair
ARR-7-SO- 1920-091715/ FD-SO-091715, which were within the acceptance criteria.
Analyte ARR-7-SO-1920-091715 FD-SO-091715 I RPD
it (mg/L) (mg/L) (%)
Arsenic 0.023 J 0.028 J 20
Barium 0.43 J 0.21 J 69
Lead 0.013 J < 0.50 NC
NC — Not calculable
Criteria: When both aqueous results are ≥5x the quantitation limit, RPDs must be <30%.
* Concentrations are less than 5x the quantitation limit, no qualification required.
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.
Table X. Summary of Soil TCLP Results
City of Aurora North Campus Water Soils Project
Aurora, Colorado
Chemical Name Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Units mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L
TCLP Limit 5 100 1 5 5 0.2 1 5
Location Sample Date --
EB-030712-01 3/7/2012 -- < 0.50 U 0.021 J < 0.10 U 0.0062 J < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
EB-091715-01 9/17/2015 -- < 0.50 U < 1.0 U < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
EB-091815-01 9/18/2015 -- < 0.50 U < 1.0 U < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
EB-100714-01 10/7/2014 -- < 0.50 U < 1.0 U < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
EB-100814-01 10/8/2014 -- < 0.50 U < 1.0 U < 0.10 U 0.0031 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
EB-101013-01 10/10/2013 -- < 0:50U 0.0039 J < 0.10 U < 0.50U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
EB-101113-01 10/11/2013 -- < 0.50 U 0.0063 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-01 9/17/2015 (14.5-15.5) < 0.50 U 0.25 J < 0.10 U < 0.50 U 0.013 J < 0.0020 U < 0.10 U < 0.50 U
ARR-01 3/7/2012 (15-16) < 0.50 U 0.15 JB < 0.10 U 0.036 JB < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-01 10/7/2014 (15-16) < 0.50 U < 1.0 U < 0.10 U 0.0072 J < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-01 10/10/2013 (16-17) < 0.50 U 0.11 J < 0.10 U 0.0067 J < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-02 10/7/2014 (23-24) < 0.50 U < 1.0 U < 0.10 U < 0.50 U 0.066 J < 0.0020 U 0.040 U < 0.50 U
ARR-02 9/18/2015 (22-23) < 0.50 U 0.099 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-02 3/6/2012 (23-24) < 0.50 U 0.19 JB < 0.10 U 0.0095 JB < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-02 10/11/2013 (23-24) < 0.50 U 0.12 J < 0.10 U < 0.50 U < 0.50U < 0.0020U < 0.10U < 0.50 U
ARR-03 3/6/2012 (23-24) < 0.50 U 0.25 JB < 0.10 U 0.027 JB < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-03 9/18/2015 (23-24) < 0.50 U 0.28 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-03 10/8/2014 (23-24) < 0:50U < 1.0 U < 0.10 U 0.0062 J < 0.50 U 0.000030 J+ < 0.10 U < 0.50 U
ARR-03 10/11/2013 (23-24) < 0.50 U 0.16 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-04 3/6/2012 (29-30) < 0.50 U 0.28 JB < 0.10 U 0.0081 JB < 0.50 U < 0.0020 U 0.030 J < 0.50 U
ARR-04 9/18/2015 (29-30) < 0.50 U 0.23 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U _ < 0.50 U
ARR-04 10/8/2014 (29-30) < 0.50 U < 1.0 U < 0.10 U 0.0030 J < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-04 10/11/2013 (29-30) < 0.50 U 0.27 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-05 10/10/2013 (23-24) < 0.50 U 0.28 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-05 3/6/2012 (27-28) < 0.50 U 0.43 JB < 0.10 U 0.0086 JB < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-05 10/8/2014 (27-28) < 0.50 U < 1.0 U 0.0025 J 0.0046 J 0.045 J < 0.0020 U < 0.10 U < 0.50 U
ARR-05 9/17/2015 (28-30) < 0.50 U 0.42 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-06 10/10/2013 (19-20) < 0.50 U 0.17 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-06 10/7/2014 (21-22) < 0.50 U < 1.0 U < 0.10 U 0.0063 J 0.071 J < 0.0020 U < 0.10 U < 0.50 U
ARR-06 3/7/2012 (23-24) < 0.50 U 0.30 JB < 0.10 U 0.0089 JB < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-06 9/17/2015 (23-24) < 0.50 U 0.20 J < 0.10 U < 0.50 U 0.072 J 0.0043 < 0.10 U < 0.50 U
ARR-07 3/6/2012 (19-20) < 0.50 U 0.29 JB < 0.10 U 0.014 JB < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-07 10/11/2013 (19-20) < 0.50 U 0.14 J < 0.10U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-07 DUP 10/11/2013 (19-20) < 0.50 U 0.13 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-07 10/7/2014 (19-20) < 0.50 U < 1.0,U < 0.10 U 0.0057 J 0.017 J < 0.0020 U < 0.10 U < 0.50 U
ARR-07 DUP 10/7/2014 (19-20) < 0.50 U < 1.0 U < 0.10 U < 0.50 U 0.15 J < 0.0020 U < 0.10 U < 0.50 U
ARR-07 9/17/2015 (19-20) 0.023 J 0.43 J < 0.10 U < 0.50 U 0.013 J < 0.0020 U < 0.10 U < 0.50 U
ARR-07 DUP 9/17/2015 (19-20) 0.028 J 0.21 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-08 3/6/2012 (27-28) < 0.50 U 0.17 JB < 0.10 U 0.0083 JB < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-08 DUP 3/6/2012 (27-28) < 0.50 U 0.20 JB < 0.10 U 0.0085 JB < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-08 9/17/2015 (27-28) < 0.50 U 0.054 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-08 10/8/2014 (27-28) < 0.50 U < 1.0 U < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-08 10/10/2013 (27-28) < 0.50 U 0.13 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-09 3/7/2012 (19-20) < 0.50 U 0.12 JB < 0.10 U 0.0087 JB < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-09 9/17/2015 (19-20) < 0.50 U 0.16 J < 0.10 U < 0.50 U 0.10 J < 0.0020 U < 0.10 U < 0.50 U
ARR-09 10/7/2014 (19-20) < 0.50 U < 1.0 U < 0.10 U 0.0063 J 0.070 J 0.000031 J+ < 0.10 U < 0.50 U
ARR-09 10/10/2013 (19-20) < 0.50 U 0.19 J < 0.10 U 0.0032 J < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-10 3/6/2012 (19-20) < 0.50 U 0.30 JB < 0.10 U 0.0092 JB < 0.50 U < 0.0020 U < 0.10 U 0.0041 J
ARR-10 9/17/2015 (19-20) < 0.50 U 0.32 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
ARR-10 10/8/2014 (19-20) < 0.50 U < 1.0 U < 0.10 U 0.012 J 0.032 J < 0.0020 U < 0.10 U < 0.50 U
ARR-10 10/10/2013 (19-20) < 0.50 U 0.20 J < 0.10 U < 0.50 U < 0.50 U < 0.0020 U < 0.10 U < 0.50 U
Notes:
< - analyte concentration is less than referenced laboratory reporting limit
J -estimated concentration
B -analyte detected in method blank
Project 1329620
GEI Consultants, Inc. 1 of 1 October 2015
NORTH CAMPUS ARR SOIL SAMPLING
NOVEMBER 2015
Appendix C Laboratory Analytical Report
rar
G "
Laboratory Analytical Report I Appendix C
Consultants
l
i
T tA • 1P,
THE LEADER IN ENVIRONMENTAL TESTING
ANALYTICAL REPORT
TestAmerica Laboratories, Inc.
TestAmerica Denver
• 4955 Yarrow Street
Arvada , CO 80002
Tel : (303)736-0100
_, .,_-.La. i; TestAmerica Job ID : 280-74417- 1
_ Client Project/Site : GEI - Aurora Water North Campus Soils
li
*: ,.` For:
GEI Consultants, Inc.
eke' 4601 DTC Blvd .
i` Suite 900
Denver, Colorado 80237
Attn : Tom Daigle
/ _ CC_
Authorized for release by:
10/6/2015 5:53: 16 PM
Jamie Ide , Project Manager
(303)736-0126
jamie . ide@testamericainc. com
LINKS
Review your project
results through
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Have a Question?
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T h e The test results in this report meet all 2003 NELAC and 2009 TNI requirements for accredited
parameters, exceptions are noted in this report. This report may not be reproduced except in full,
L Ex p e rt I and with written approval from the laboratory. For questions please contact the Project Manager
at the e-mail address or telephone number listed on this page.
Ld , ,
J' This report has been electronically signed and authorized by the signatory. Electronic signature is
l' intended to be the legally binding equivalent of a traditionally handwritten signature.
Visit us at: I if
Results relate only to the items tested and the sample(s) as received by the laboratory.
www.testamericainc.com
I
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Table of Contents
Cover Page 1
Table of Contents 2
Definitions 3
Case Narrative 4
Detection Summary 5
Method Summary 7
Sample Summary 8
Client Sample Results 9
QC Sample Results 14
QC Association 17
Chronicle 20
Certification Summary 24
Chain of Custody 25
Receipt Checklists 27
TestAmerica Denver
Page 2 of 27 10/6/2015
Definitions/Glossary
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Qualifiers 4i,z Metals
Qualifier Qualifier Description
B Compound was found in the blank and sample.
J 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.
Listed under the "D" column to designate that the result is reported on a dry weight basis
%R Percent Recovery
CFL Contains Free Liquid
CNF Contains no Free Liquid
DER Duplicate error ratio (normalized absolute difference)
Dil Fac Dilution Factor
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample
DLC Decision level concentration
MDA Minimum detectable activity
EDL Estimated Detection Limit
MDC Minimum detectable concentration
MDL 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
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points
TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TestAmerica Denver
Page 3 of 27 10/6/2015
Case Narrative
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Job ID : 280-74417-1
Laboratory: TestAmerica Denver
Narrative
CASE NARRATIVE
Client: GEI Consultants, Inc.
Project: GEI - Aurora Water North Campus Soils
Report Number: 280-74417-1
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 9/18/2015 4:35 PM; the samples arrived in good condition, properly preserved and, where required, on ice.
The temperature of the cooler at receipt was 4.2° C.
TCLP METALS
Chromium was detected in method blank LB 280-297555/1 -A 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 was detected in method blank LB3 280-296148/1 -B 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.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
TCLP MERCURY
Mercury was detected in method blank LB 280-296155/1 -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.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
TestAmerica Denver
Page 4 of 27 10/6/2015
Detection Summary
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Client Sample ID : ARR-6-SO-2324-091715 Lab Sample ID : 280-74417-1
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Barium 0.20 J 1 .0 0.0020 mg/L 1 6010B TCLP
Lead 0.072 J 0.50 0.013 mg/L 1 6010B TCLP C
Mercury 0.0043 B 0.0020 0.000030 mg/L 1 7470A TCLP J
Client Sample ID : ARR-8-SO-2728-091715 Lab Sample ID : 280-74417-2
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Barium 0.054 J 1 .0 0.0020 mg/L 1 60106 TCLP
Mercury 0.00015 J B 0.0020 0.000030 mg/L 1 7470A TCLP
Client Sample ID: ARR-7-SO-1920-091715 Lab Sample ID: 280-74417-3
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Arsenic 0.023 J 0.50 0.022 mg/L 1 6010B TCLP
Barium 0.43 J 1 .0 0.0020 mg/L 1 6010B TCLP
Lead 0.013 J 0.50 0.013 mg/L 1 6010B TCLP
Mercury 0.0015 J B 0.0020 0.000030 mg/L 1 7470A TCLP
Client Sample ID: ARR-5-SO-2830-091715 Lab Sample ID: 280-74417-4
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Barium 0.42 J 1.0 0.0020 mg/L 1 6010B TCLP
Chromium 0.0030 J B 0.50 0.0030 mg/L 1 6010B TCLP
Mercury 0.00011 J B 0.0020 0.000030 mg/L 1 7470A TCLP
Client Sample ID: ARR-1 -SO-14.5-15.5-091715 Lab Sample ID: 280-74417-5
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Barium 0.25 J 1 .0 0.0020 mg/L 1 6010B TCLP
Chromium 0.0044 J B 0.50 0.0030 mg/L 1 6010B TCLP
Lead 0.013 J 0.50 0.013 mg/L 1 6010B TCLP
Mercury 0.00023 J B 0.0020 0.000030 mg/L 1 7470A TCLP
Client Sample ID : EB-091715-01 Lab Sample ID : 280-74417-6
No Detections.
Client Sample ID: FD-SO-091715 Lab Sample ID: 280-74417-7
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Arsenic 0.028 J 0.50 0.022 mg/L 1 6010B TCLP
Barium 0.21 J 1 .0 0.0020 mg/L 1 6010B TCLP
Client Sample ID: ARR-10-SO-1920-091715 Lab Sample ID: 280-74417-8
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Barium 0.32 J 1.0 0.0020 mg/L 1 6010B TCLP
Client Sample ID : ARR-9-SO-1920-091715 Lab Sample ID : 280-74417-9
This Detection Summary does not include radiochemical test results.
TestAmerica Denver
Page 5 of 27 10/6/2015
Detection Summary
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Client Sample ID : ARR-9-SO-1920-091715 (Continued) Lab Sample ID : 280-74417-9
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Barium 0.16 J 1 .0 0.0020 mg/L 1 6010B TCLP
Lead 0.10 J 0.50 0.013 mg/L 1 6010B TCLP C
Mercury 0.000087 J B 0.0020 0.000030 mg/L 1 7470A TCLP J
Client Sample ID : ARR-4-SO-2930-091815 Lab Sample ID : 280-74417-10
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Barium 0.23 J 1 .0 0.0020 mg/L 1 6010B TCLP
Mercury 0.00010 J B 0.0020 0.000030 mg/L 1 7470A TCLP
Client Sample ID: ARR-2-SO-2223-091815 Lab Sample ID : 280-74417-11
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Barium 0.099 J 1 .0 0.0020 mg/L 1 6010B TCLP
Chromium 0.0053 J B 0.50 0.0030 mg/L 1 6010B TCLP
Mercury 0.000035 J B 0.0020 0.000030 mg/L 1 7470A TCLP
Client Sample ID: ARR-3-SO-2324-091815 Lab Sample ID: 280-74417-12
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Barium 0.28 J 1 .0 0.0020 mg/L 1 6010B TCLP
Chromium 0.0035 J B 0.50 0.0030 mg/L 1 6010B TCLP
Mercury 0.000050 J B 0.0020 0.000030 mg/L 1 7470A TCLP
Client Sample ID: EB-091815-01 Lab Sample ID: 280-74417-13
No Detections.
This Detection Summary does not include radiochemical test results.
TestAmerica Denver
Page 6 of 27 10/6/2015
Method Summary
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Method Method Description Protocol Laboratory
6010B Metals (ICP) SW846 TAL DEN
7470A Mercury (CVAA) SW846 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 7 of 27 10/6/2015
Sample Summary
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Lab Sample ID Client Sample ID Matrix Collected Received
280-74417-1 ARR-6-SO-2324-091715 Solid 09/17/15 13:00 09/18/15 16:35
280-74417-2 ARR-8-SO-2728-091715 Solid 09/17/15 11 :05 09/18/15 16:35
280-74417-3 ARR-7-SO-1920-091715 Solid 09/17/15 14:35 09/18/15 16:35
280-74417-4 ARR-5-SO-2830-091715 Solid 09/17/15 09:55 09/18/15 16:35
280-74417-5 ARR-1-SO-14.5-15.5-091715 Solid 09/17/15 13:45 09/18/15 16:35
280-74417-6 EB-091715-01 Water 09/17/15 11 :05 09/18/15 16:35
280-74417-7 FD-SO-091715 Solid 09/17/15 14:35 09/18/15 16:35
280-74417-8 ARR-10-SO-1920-091715 Solid 09/17/15 08:40 09/18/15 16:35
280-74417-9 ARR-9-SO-1920-091715 Solid 09/17/15 12: 15 09/18/15 16:35
280-74417-10 ARR-4-SO-2930-091815 Solid 09/18/15 10:30 09/18/15 16:35
280-74417-11 ARR-2-SO-2223-091815 Solid 09/18/15 08:48 09/18/15 16:35
280-74417-12 ARR-3-SO-2324-091815 Solid 09/18/15 09:35 09/18/15 16:35
280-74417-13 EB-091815-01 Water 09/18/15 08:50 09/18/15 16:35
TestAmerica Denver
Page 8 of 27 10/6/2015
Client Sample Results
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Method: 6010B - Metals (ICP) - TCLP
Client Sample ID: ARR-6-SO-2324-091715 Lab Sample ID: 280-74417-1
Date Collected : 09/17/15 13:00 Matrix: Solid
Date Received: 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac �—
Arsenic ND 0.50 0.022 mg/L 10/02/15 14:00 10/05/15 22:15 1
Barium 0.20 J 1 .0 0.0020 mg/L 10/02/15 14:00 10/05/15 22:15 1
Cadmium ND 0.10 0.0020 mg/L 10/02/15 14:00 10/05/15 22:15 1
Chromium ND 0.50 0.0030 mg/L 10/02/15 14:00 10/05/15 22:15 1
Lead 0.072 J 0.50 0.013 mg/L 10/02/15 14:00 10/05/15 22:15 1 ,
Selenium ND 0.10 0.024 mg/L 10/02/15 14:00 10/05/15 22:15 1n)'{
Silver ND 0.50 0.0040 mg/L 10/02/15 14:00 10/05/15 22:15 1
Client Sample ID: ARR-8-SO-2728-091715 Lab Sample ID: 280-74417-2
Date Collected : 09/17/15 11 :05 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic ND 0.50 0.022 mg/L 10/02/15 14:00 10/05/15 22:17 1
Barium 0.054 J 1 .0 0.0020 mg/L 10/02/15 14:00 10/05/15 22:17 1
Cadmium ND 0.10 0.0020 mg/L 10/02/15 14:00 10/05/15 22:17 1
Chromium ND 0.50 0.0030 mg/L 10/02/15 14:00 10/05/15 22:17 1
Lead ND 0.50 0.013 mg/L 10/02/15 14:00 10/05/15 22:17 1
Selenium ND 0. 10 0.024 mg/L 10/02/15 14:00 10/05/15 22:17 1
Silver ND 0.50 0.0040 mg/L 10/02/15 14:00 10/05/15 22:17 1
Client Sample ID: ARR-7-SO-1920-091715 Lab Sample ID: 280-74417-3
Date Collected : 09/17/15 14:35 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic 0.023 J 0.50 0.022 mg/L 10/02/15 14:00 10/05/15 22:37 1
Barium 0.43 J 1 .0 0.0020 mg/L 10/02/15 14:00 10/05/15 22:37 1
Cadmium ND 0.10 0.0020 mg/L 10/02/15 14:00 10/05/15 22:37 1
Chromium ND 0.50 0.0030 mg/L 10/02/15 14:00 10/05/15 22:37 1
Lead 0.013 J 0.50 0.013 mg/L 10/02/15 14:00 10/05/15 22:37 1
Selenium ND 0.10 0.024 mg/L 10/02/15 14:00 10/05/15 22:37 1
Silver ND 0.50 0.0040 mg/L 10/02/15 14:00 10/05/15 22:37 1
Client Sample ID: ARR-5-SO-2830-091715 Lab Sample ID: 280-74417-4
Date Collected: 09/17/15 09:55 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic ND 0.50 0.022 mg/L 10/02/15 14:00 10/05/15 22:39 1
Barium 0.42 J 1 .0 0.0020 mg/L 10/02/15 14:00 10/05/15 22:39 1
Cadmium ND 0.10 0.0020 mg/L 10/02/15 14:00 10/05/15 22:39 1
Chromium 0.0030 J B 0.50 0.0030 mg/L 10/02/15 14:00 10/05/15 22:39 1
Lead ND 0.50 0.013 mg/L 10/02/15 14:00 10/05/15 22:39 1
Selenium ND 0. 10 0.024 mg/L 10/02/15 14:00 10/05/15 22:39 1
Silver ND 0.50 0.0040 mg/L 10/02/15 14:00 10/05/15 22:39 1
Client Sample ID: ARR-1 -SO-14.5-15.5-091715 Lab Sample ID: 280-74417-5
Date Collected: 09/17/15 13:45 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic ND 0.50 0.022 mg/L 10/02/15 14:00 10/05/15 22:42 1
Barium 0.25 J 1 .0 0.0020 mg/L 10/02/15 14:00 10/05/15 22:42 1
TestAmerica Denver
Page 9 of 27 10/6/2015
Client Sample Results
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Method: 6010B - Metals (ICP) - TCLP (Continued)
Client Sample ID: ARR-1 -SO-14.5-15.5-091715 Lab Sample ID: 280-74417-5
Date Collected: 09/17/15 13:45 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Cadmium ND 0. 10 0.0020 mg/L 10/02/15 14:00 10/05/15 22:42 1
Chromium 0.0044 J B 0.50 0.0030 mg/L 10/02/15 14:00 10/05/15 22:42 1
Lead 0.013 J 0.50 0.013 mg/L 10/02/15 14:00 10/05/15 22:42 1
Selenium ND 0. 10 0.024 mg/L 10/02/15 14:00 10/05/15 22:42 1
Silver ND 0.50 0.0040 mg/L 10/02/15 14:00 10/05/15 22:42 1
¢ a)iy
Client Sample ID: EB-091715-01 Lab Sample ID: 280-74417-6 E'` ¢l
Date Collected: 09/17/15 11 :05 Matrix: Water
Date Received: 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic ND 0.50 0.022 mg/L 09/29/15 08:30 10/02/15 23:04 1
Barium ND 1 .0 0.0020 mg/L 09/29/15 08:30 10/02/15 23:04 1
Cadmium ND 0.10 0.0020 mg/L 09/29/15 08:30 10/02/15 23:04 1
Chromium ND 0.50 0.0030 mg/L 09/29/15 08:30 10/02/15 23:04 1
Lead ND 0.50 0.013 mg/L 09/29/15 08:30 10/02/15 23:04 1
Selenium ND 0.10 0.024 mg/L 09/29/15 08:30 10/02/15 23:04 1
Silver ND 0.50 0.0040 mg/L 09/29/15 08:30 10/02/15 23:04 1
Client Sample ID: FD-SO-091715 Lab Sample ID: 280-74417-7
Date Collected: 09/17/15 14:35 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic 0.028 J 0.50 0.022 mg/L 10/02/15 14:00 10/05/15 22:44 1
Barium 0.21 J 1 .0 0.0020 mg/L 10/02/15 14:00 10/05/15 22:44 1
Cadmium ND 0.10 0.0020 mg/L 10/02/15 14:00 10/05/15 22:44 1
Chromium ND 0.50 0.0030 mg/L 10/02/15 14:00 10/05/15 22:44 1
Lead ND 0.50 0.013 mg/L 10/02/15 14:00 10/05/15 22:44 1
Selenium ND 0. 10 0.024 mg/L 10/02/15 14:00 10/05/15 22:44 1
Silver ND 0.50 0.0040 mg/L 10/02/15 14:00 10/05/15 22:44 1
Client Sample ID: ARR-10-SO-1920-091715 Lab Sample ID: 280-74417-8
Date Collected: 09/17/15 08:40 Matrix: Solid
Date Received: 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic ND 0.50 0.022 mg/L 10/02/15 14:00 10/05/15 22:47 1
Barium 0.32 J 1 .0 0.0020 mg/L 10/02/15 14:00 10/05/15 22:47 1
Cadmium ND 0. 10 0.0020 mg/L 10/02/15 14:00 10/05/15 22:47 1
Chromium ND 0.50 0.0030 mg/L 10/02/15 14:00 10/05/15 22:47 1
Lead ND 0.50 0.013 mg/L 10/02/15 14:00 10/05/15 22:47 1
Selenium ND 0. 10 0.024 mg/L 10/02/15 14:00 10/05/15 22:47 1
Silver ND 0.50 0.0040 mg/L 10/02/15 14:00 10/05/15 22:47 1
Client Sample ID: ARR-9-SO-1920-091715 Lab Sample ID: 280-74417-9
Date Collected : 09/17/15 12: 15 Matrix: Solid
Date Received: 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic ND 0.50 0.022 mg/L 10/02/15 14:00 10/05/15 22:49 1
Barium 0.16 J 1 .0 0.0020 mg/L 10/02/15 14:00 10/05/15 22:49 1
Cadmium ND 0.10 0.0020 mg/L 10/02/15 14:00 10/05/15 22:49 1
Chromium ND 0.50 0.0030 mg/L 10/02/15 14:00 10/05/15 22:49 1
TestAmerica Denver
Page 10 of 27 10/6/2015
Client Sample Results
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Method: 6010B - Metals (ICP) - TCLP (Continued)
Client Sample ID: ARR-9-SO-1920-091715 Lab Sample ID: 280-74417-9
Date Collected: 09/17/15 12: 15 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Lead 0.10 J 0.50 0.013 mg/L 10/02/15 14:00 10/05/15 22:49 1
Selenium ND 0.10 0.024 mg/L 10/02/15 14:00 10/05/15 22:49 1
Silver ND 0.50 0.0040 mg/L 10/02/15 14:00 10/05/15 22:49 1
Client Sample ID: ARR-4-SO-2930-091815 Lab Sample ID: 280-74417-10
Date Collected: 09/18/15 10:30 Matrix: Solid ;� 9,�
Date Received: 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic ND 0.50 0.022 mg/L 10/02/15 14:00 10/05/15 22:52 1
Barium 0.23 J 1 .0 0.0020 mg/L 10/02/15 14:00 10/05/15 22:52 1
Cadmium ND 0.10 0.0020 mg/L 10/02/15 14:00 10/05/15 22:52 1
Chromium ND 0.50 0.0030 mg/L 10/02/15 14:00 10/05/15 22:52 1
Lead ND 0.50 0.013 mg/L 10/02/15 14:00 10/05/15 22:52 1
Selenium ND 0. 10 0.024 mg/L 10/02/15 14:00 10/05/15 22:52 1
Silver ND 0.50 0.0040 mg/L 10/02/15 14:00 10/05/15 22:52 1
Client Sample ID: ARR-2-SO-2223-091815 Lab Sample ID: 280-74417-11
Date Collected : 09/18/15 08:48 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic ND 0.50 0.022 mg/L 10/02/15 14:00 10/05/15 22:54 1
Barium 0.099 J 1 .0 0.0020 mg/L 10/02/15 14:00 10/05/15 22:54 1
Cadmium ND 0. 10 0.0020 mg/L 10/02/15 14:00 10/05/15 22:54 1
Chromium 0.0053 J B 0.50 0.0030 mg/L 10/02/15 14:00 10/05/15 22:54 1
Lead ND 0.50 0.013 mg/L 10/02/15 14:00 10/05/15 22:54 1
Selenium ND 0. 10 0.024 mg/L 10/02/15 14:00 10/05/15 22:54 1
Silver ND 0.50 0.0040 mg/L 10/02/15 14:00 10/05/15 22:54 1
Client Sample ID: ARR-3-SO-2324-091815 Lab Sample ID: 280-74417-12
Date Collected: 09/18/15 09:35 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic ND 0.50 0.022 mg/L 10/02/15 14:00 10/05/15 22:57 1
Barium 0.28 J 1 .0 0.0020 mg/L 10/02/15 14:00 10/05/15 22:57 1
Cadmium ND 0.10 0.0020 mg/L 10/02/15 14:00 10/05/15 22:57 1
Chromium 0.0035 J B 0.50 0.0030 mg/L 10/02/15 14:00 10/05/15 22:57 1
Lead ND 0.50 0.013 mg/L 10/02/15 14:00 10/05/15 22:57 1
Selenium ND 0.10 0.024 mg/L 10/02/15 14:00 10/05/15 22:57 1
Silver ND 0.50 0.0040 mg/L 10/02/15 14:00 10/05/15 22:57 1
Client Sample ID: EB-091815-01 Lab Sample ID: 280-74417-13
Date Collected: 09/18/15 08:50 Matrix: Water
Date Received: 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic ND 0.50 0.022 mg/L 09/29/15 08:30 10/02/15 23:06 1
Barium ND 1 .0 0.0020 mg/L 09/29/15 08:30 10/02/15 23:06 1
Cadmium ND 0. 10 0.0020 mg/L 09/29/15 08:30 10/02/15 23:06 1
Chromium ND 0.50 0.0030 mg/L 09/29/15 08:30 10/02/15 23:06 1
Lead ND 0.50 0.013 mg/L 09/29/15 08:30 10/02/15 23:06 1
Selenium ND 0. 10 0.024 mg/L 09/29/15 08:30 10/02/15 23:06 1
TestAmerica Denver
Page 11 of 27 10/6/2015
Client Sample Results
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Method: 6010B - Metals (ICP) - TCLP (Continued)
Client Sample ID: EB-091815-01 Lab Sample ID: 280-74417-13
Date Collected: 09/18/15 08:50 Matrix: Water
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Silver ND 0.50 0.0040 mg/L 09/29/15 08:30 10/02/15 23:06 1
Method : 7470A - Mercury (CVAA) - TCLP
Client Sample ID: ARR-6-SO-2324-091715 Lab Sample ID: 280-74417-1
Date Collected: 09/17/15 13:00 Matrix: Solid ,cc,),
Date Received : 09/18/15 16:35 ``zi`
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury 0.0043 B 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 17:46 1
Client Sample ID: ARR-8-SO-2728-091715 Lab Sample ID: 280-74417-2
Date Collected: 09/17/15 11 :05 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury 0.00015 J B 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 17:49 1
Client Sample ID: ARR-7-SO-1920-091715 Lab Sample ID: 280-74417-3
Date Collected : 09/17/15 14:35 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury 0.0015 J B 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 17:56 1
Client Sample ID: ARR-5-SO-2830-091715 Lab Sample ID: 280-74417-4
Date Collected: 09/17/15 09:55 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury 0.00011 J B 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 17:58 1
Client Sample ID: ARR-1 -SO-14.5-15.5-091715 Lab Sample ID: 280-74417-5
Date Collected: 09/17/15 13:45 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury 0.00023 J B 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 18:00 1
Client Sample ID: EB-091715-01 Lab Sample ID: 280-74417-6
Date Collected: 09/17/15 11 :05 Matrix: Water
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury ND 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 18:26 1
Client Sample ID: FD-SO-091715 Lab Sample ID: 280-74417-7
Date Collected: 09/17/15 14:35 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury ND 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 18:03 1
Client Sample ID: ARR-10-SO-1920-091715 Lab Sample ID: 280-74417-8
Date Collected : 09/17/15 08:40 Matrix: Solid
Date Received: 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury ND 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 18:05 1
TestAmerica Denver
Page 12 of 27 10/6/2015
Client Sample Results
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Method: 7470A - Mercury (CVAA) - TCLP
Client Sample ID: ARR-9-SO-1920-091715 Lab Sample ID: 280-74417-9
Date Collected : 09/17/15 12: 15 Matrix: Solid
Date Received: 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury 0.000087 J B 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 18:12 1
Client Sample ID: ARR-4-SO-2930-091815 Lab Sample ID: 280-74417-10
Date Collected: 09/18/15 10:30 Matrix: Solid
Date Received: 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury 0.00010 J B 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 18:14 1
Client Sample ID: ARR-2-SO-2223-091815 Lab Sample ID: 280-74417-11
Date Collected : 09/18/15 08:48 Matrix: Solid
Date Received: 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury 0.000035 J B 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 18:16 1
Client Sample ID: ARR-3-SO-2324-091815 Lab Sample ID: 280-74417-12
Date Collected: 09/18/15 09:35 Matrix: Solid
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury 0.000050 J B 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 18:19 1
Client Sample ID: EB-091815-01 Lab Sample ID: 280-74417-13
Date Collected : 09/18/15 08:50 Matrix: Water
Date Received : 09/18/15 16:35
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury ND 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 18:33 1
TestAmerica Denver
Page 13 of 27 10/6/2015
QC Sample Results
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Method : 6010B - Metals (ICP)
Lab Sample ID: LB 280-297555/1 -A Client Sample ID: Method Blank
Matrix: Solid Prep Type: Total/NA
Analysis Batch : 298024 Prep Batch : 297555
LB LB
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic ND 0.50 0.022 mg/L 10/02/15 14:00 10/05/15 22:07 1
Barium ND 1 .0 0.0020 mg/L 10/02/15 14:00 10/05/15 22:07 1
Cadmium ND 0.10 0.0020 mg/L 10/02/15 14:00 10/05/15 22:07 1
Chromium 0.00480 J 0.50 0.0030 mg/L 10/02/15 14:00 10/05/15 22:07 1
Lead ND 0.50 0.013 mg/L 10/02/15 14:00 10/05/15 22:07 1
Selenium ND 0.10 0.024 mg/L 10/02/15 14:00 10/05/15 22:07 1
Silver ND 0.50 0.0040 mg/L 10/02/15 14:00 10/05/15 22:07 1 .9
Lab Sample ID: LCS 280-297555/2-A Client Sample ID : Lab Control Sample
Matrix: Solid Prep Type: Total/NA
Analysis Batch : 298024 Prep Batch : 297555
Spike LCS LCS %Rec.
Analyte Added Result Qualifier Unit D %Rec Limits
Arsenic 4.00 4. 12 mg/L 103 80 - 120
Barium 12.0 12.7 mg/L 106 80 - 120
Cadmium 1 .10 1 .19 mg/L 108 80 - 120
Chromium 5.20 5.42 mg/L 104 80 - 120
Lead 5.50 5.80 mg/L 105 80 - 120
Selenium 3.00 3.12 mg/L 104 80 - 120
Silver 1 .05 1 .07 mg/L 102 80 - 120
Lab Sample ID: LB3 280-296148/1 -B Client Sample ID: Method Blank
Matrix: Water Prep Type: TCLP
Analysis Batch : 297718 Prep Batch : 296613
LB3 LB3
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Arsenic ND 0.50 0.022 mg/L 09/29/15 08:30 10/02/15 22:57 1
Barium 0.00585 J 1 .0 0.0020 mg/L 09/29/15 08:30 10/02/15 22:57 1
Cadmium ND 0. 10 0.0020 mg/L 09/29/15 08:30 10/02/15 22:57 1
Chromium ND 0.50 0.0030 mg/L 09/29/15 08:30 10/02/15 22:57 1
Lead ND 0.50 0.013 mg/L 09/29/15 08:30 10/02/15 22:57 1
Selenium ND 0. 10 0.024 mg/L 09/29/15 08:30 10/02/15 22:57 1
Silver ND 0.50 0.0040 mg/L 09/29/15 08:30 10/02/15 22:57 1
Lab Sample ID: LCS 280-296148/2-B Client Sample ID: Lab Control Sample
Matrix: Water Prep Type: TCLP
Analysis Batch : 297718 Prep Batch : 296613
Spike LCS LCS %Rec.
Analyte Added Result Qualifier Unit D %Rec Limits
Arsenic 4.00 3.93 mg/L 98 80 - 120
Barium 12.0 11 .9 mg/L 99 80 - 120
Cadmium 1 .10 1 .12 mg/L 101 80 - 120
Chromium 5.20 5.06 mg/L 97 80 - 120
Lead 5.50 5.63 mg/L 102 80 - 120
Selenium 3.00 3.01 mg/L 100 80 - 120
Silver 1 .05 1 .07 mg/L 102 80 - 120
TestAmerica Denver
Page 14 of 27 10/6/2015
QC Sample Results
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Method : 6010B - Metals (ICP) (Continued)
Lab Sample ID: LCSD 280-296148/5-B Client Sample ID: Lab Control Sample Dup
Matrix: Water Prep Type: TCLP
Analysis Batch : 297718 Prep Batch : 296613
Spike LCSD LCSD %Rec. RPD
Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit
Arsenic 4.00 3.99 mg/L 100 80 - 120 2 20
Barium 12.0 12.0 mg/L 100 80 - 120 1 20
Cadmium 1 .10 1 .12 mg/L 102 80 - 120 0 20
Chromium 5.20 5.16 mg/L 99 80 - 120 2 20
Lead 5.50 5.65 mg/L 103 80 - 120 0 20
Selenium 3.00 3.01 mg/L 100 80 - 120 0 20
Silver 1 .05 1 .05 mg/L 100 80 - 120 2 20 9:
Lab Sample ID: 280-74417-2 MS Client Sample ID: ARR-8-SO-2728-091715 MS
Matrix: Solid Prep Type: TCLP
Analysis Batch : 298024 Prep Batch : 297555
Sample Sample Spike MS MS %Rec.
Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits
Arsenic ND 4.00 3.91 mg/L 98 80 - 120
Barium 0.054 J 12.0 12.0 mg/L 100 80 - 120
Cadmium ND 1 .10 1 .12 mg/L 102 80 - 120
Chromium ND 5.20 5. 12 mg/L 98 80 - 120
Lead ND 5.50 5.52 mg/L 100 80 - 120
Selenium ND 3.00 2.94 mg/L 98 80 - 120
Silver ND 1 .05 1 .00 mg/L 95 80 - 120
Lab Sample ID: 280-74417-2 MSD Client Sample ID: ARR-8-SO-2728-091715 MSD
Matrix: Solid Prep Type: TCLP
Analysis Batch : 298024 Prep Batch : 297555
Sample Sample Spike MSD MSD %Rec. RPD
Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits RPD Limit
Arsenic ND 4.00 4.26 mg/L 107 80 - 120 9 20
Barium 0.054 J 12.0 13.1 mg/L 108 80 - 120 8 20
Cadmium ND 1 .10 1 .22 mg/L 111 80 - 120 9 20
Chromium ND 5.20 5.57 mg/L 107 80 - 120 8 20
Lead ND 5.50 5.99 mg/L 109 80 - 120 8 20
Selenium ND 3.00 3.25 mg/L 108 80 - 120 10 20
Silver ND 1 .05 1 .09 mg/L 104 80 - 120 8 20
Method: 7470A - Mercury (CVAA)
Lab Sample ID: LB 280-296155/1 -C Client Sample ID: Method Blank
Matrix: Solid Prep Type: TCLP
Analysis Batch : 297707 Prep Batch : 297360
LB LB
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury 0.000173 J 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 17:35 1
Lab Sample ID: LCS 280-296155/2-C Client Sample ID : Lab Control Sample
Matrix: Solid Prep Type: TCLP
Analysis Batch : 297707 Prep Batch : 297360
Spike LCS LCS %Rec.
Analyte Added Result Qualifier Unit D %Rec Limits
Mercury 0.00500 0.00578 mg/L 116 90 - 116
TestAmerica Denver
Page 15 of 27 10/6/2015
QC Sample Results
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Lab Sample ID: 280-74417-2 MS Client Sample ID: ARR-8-SO-2728-091715 MS
Matrix: Solid Prep Type: TCLP
Analysis Batch : 297707 Prep Batch : 297360
Sample Sample Spike MS MS %Rec.
Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits
Mercury 0.00015 J B 0.00500 0.00572 mg/L 111 90 - 116
Lab Sample ID: 280-74417-2 MSD Client Sample ID: ARR-8-SO-2728-091715 MSD
Matrix: Solid Prep Type: TCLP
Analysis Batch : 297707 Prep Batch : 297360
Sample Sample Spike MSD MSD %Rec. RPD
Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits RPD Limit
Mercury 0.00015 J B 0.00500 0.00584 mg/L 114 90 - 116 2 10
Lab Sample ID: LB3 280-296148/1 -C Client Sample ID: Method Blank
Matrix: Water Prep Type: TCLP
Analysis Batch : 297707 Prep Batch : 297361
LB3 LB3
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury ND 0.0020 0.000030 mg/L 10/02/15 11 :30 10/02/15 18:21 1
Lab Sample ID: LCS 280-296148/2-C Client Sample ID: Lab Control Sample
Matrix: Water Prep Type: TCLP
Analysis Batch : 297707 Prep Batch : 297361
Spike LCS LCS %Rec.
Analyte Added Result Qualifier Unit D %Rec Limits
Mercury 0.00500 0.00494 mg/L 99 90 - 116
Lab Sample ID: 280-74417-6 MS Client Sample ID: EB-091715-01
Matrix: Water Prep Type: TCLP
Analysis Batch : 297707 Prep Batch : 297361
Sample Sample Spike MS MS %Rec.
Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits
Mercury ND 0.00500 0.00493 mg/L 99 90 - 116
Lab Sample ID: 280-74417-6 MSD Client Sample ID: EB-091715-01
Matrix: Water Prep Type: TCLP
Analysis Batch : 297707 Prep Batch : 297361
Sample Sample Spike MSD MSD %Rec. RPD
Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits RPD Limit
Mercury ND 0.00500 0.00501 mg/L 100 90 - 116 2 10
TestAmerica Denver
Page 16 of 27 10/6/2015
QC Association Summary
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Metals
Leach Batch : 296148
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
280-74417-6 EB-091715-01 TCLP Water 1311
280-74417-6 MS EB-091715-01 TCLP Water 1311
280-74417-6 MSD EB-091715-01 TCLP Water 1311
280-74417-13 EB-091815-01 TCLP Water 1311
LB3 280-296148/1 -B Method Blank TCLP Water 1311
LB3 280-296148/1 -C Method Blank TCLP Water 1311
LCS 280-296148/2-B Lab Control Sample TCLP Water 1311
LCS 280-296148/2-C Lab Control Sample TCLP Water 1311
LCSD 280-296148/5-B Lab Control Sample Dup TCLP Water 1311
Leach Batch: 296155
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
280-74417-1 ARR-6-SO-2324-091715 TCLP Solid 1311
280-74417-2 ARR-8-SO-2728-091715 TCLP Solid 1311
280-74417-2 MS ARR-8-SO-2728-091715 MS TCLP Solid 1311
280-74417-2 MSD ARR-8-SO-2728-091715 MSD TCLP Solid 1311
280-74417-3 ARR-7-SO-1920-091715 TCLP Solid 1311
280-74417-4 ARR-5-SO-2830-091715 TCLP Solid 1311
280-74417-5 ARR-1 -SO-14.5-15.5-091715 TCLP Solid 1311
280-74417-7 FD-SO-091715 TCLP Solid 1311
280-74417-8 ARR-10-SO-1920-091715 TCLP Solid 1311
280-74417-9 ARR-9-SO-1920-091715 TCLP Solid 1311
280-74417-10 ARR-4-SO-2930-091815 TCLP Solid 1311
280-74417-11 ARR-2-SO-2223-091815 TCLP Solid 1311
280-74417-12 ARR-3-SO-2324-091815 TCLP Solid 1311
LB 280-296155/1 -C Method Blank TCLP Solid 1311
LCS 280-296155/2-C Lab Control Sample TCLP Solid 1311
Prep Batch : 296613
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
280-74417-6 EB-091715-01 TCLP Water 3010A 296148
280-74417-13 EB-091815-01 TCLP Water 3010A 296148
LB3 280-296148/1 -B Method Blank TCLP Water 3010A 296148
LCS 280-296148/2-B Lab Control Sample TCLP Water 3010A 296148
LCSD 280-296148/5-B Lab Control Sample Dup TCLP Water 3010A 296148
Prep Batch : 297360
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
280-74417-1 ARR-6-SO-2324-091715 TCLP Solid 7470A 296155
280-74417-2 ARR-8-SO-2728-091715 TCLP Solid 7470A 296155
280-74417-2 MS ARR-8-SO-2728-091715 MS TCLP Solid 7470A 296155
280-74417-2 MSD ARR-8-SO-2728-091715 MSD TCLP Solid 7470A 296155
280-74417-3 ARR-7-SO-1920-091715 TCLP Solid 7470A 296155
280-74417-4 ARR-5-SO-2830-091715 TCLP Solid 7470A 296155
280-74417-5 ARR-1 -SO-14.5-15.5-091715 TCLP Solid 7470A 296155
280-74417-7 FD-SO-091715 TCLP Solid 7470A 296155
280-74417-8 ARR-10-SO-1920-091715 TCLP Solid 7470A 296155
280-74417-9 ARR-9-SO-1920-091715 TCLP Solid 7470A 296155
280-74417-10 ARR-4-SO-2930-091815 TCLP Solid 7470A 296155
280-74417-11 ARR-2-SO-2223-091815 TCLP Solid 7470A 296155
280-74417-12 ARR-3-SO-2324-091815 TCLP Solid 7470A 296155
TestAmerica Denver
Page 17 of 27 10/6/2015
QC Association Summary
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Metals (Continued)
Prep Batch : 297360 (Continued)
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
LB 280-296155/1-C Method Blank TCLP Solid 7470A 296155
LCS 280-296155/2-C Lab Control Sample TCLP Solid 7470A 296155
Prep Batch : 297361
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
280-74417-6 EB-091715-01 TCLP Water 7470A 296148
280-74417-6 MS EB-091715-01 TCLP Water 7470A 296148
280-74417-6 MSD EB-091715-01 TCLP Water 7470A 296148
280-74417-13 EB-091815-01 TCLP Water 7470A 296148
LB3 280-296148/1 -C Method Blank TCLP Water 7470A 296148
LCS 280-296148/2-C Lab Control Sample TCLP Water 7470A 296148
Prep Batch : 297555
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
280-74417-1 ARR-6-SO-2324-091715 TCLP Solid 3010A 296155
280-74417-2 ARR-8-SO-2728-091715 TCLP Solid 3010A 296155
280-74417-2 MS ARR-8-SO-2728-091715 MS TCLP Solid 3010A 296155
280-74417-2 MSD ARR-8-SO-2728-091715 MSD TCLP Solid 3010A 296155
280-74417-3 ARR-7-SO-1920-091715 TCLP Solid 3010A 296155
280-74417-4 ARR-5-SO-2830-091715 TCLP Solid 3010A 296155
280-74417-5 ARR-1 -SO-14.5-15.5-091715 TCLP Solid 3010A 296155
280-74417-7 FD-SO-091715 TCLP Solid 3010A 296155
280-74417-8 ARR-10-SO-1920-091715 TCLP Solid 3010A 296155
280-74417-9 ARR-9-SO-1920-091715 TCLP Solid 3010A 296155
280-74417-10 ARR-4-SO-2930-091815 TCLP Solid 3010A 296155
280-74417-11 ARR-2-SO-2223-091815 TCLP Solid 3010A 296155
280-74417-12 ARR-3-SO-2324-091815 TCLP Solid 3010A 296155
LB 280-297555/1 -A Method Blank Total/NA Solid 3010A
LCS 280-297555/2-A Lab Control Sample Total/NA Solid 3010A
Analysis Batch : 297707
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
280-74417-1 ARR-6-SO-2324-091715 TCLP Solid 7470A 297360
280-74417-2 ARR-8-SO-2728-091715 TCLP Solid 7470A 297360
280-74417-2 MS ARR-8-SO-2728-091715 MS TCLP Solid 7470A 297360
280-74417-2 MSD ARR-8-SO-2728-091715 MSD TCLP Solid 7470A 297360
280-74417-3 ARR-7-SO-1920-091715 TCLP Solid 7470A 297360
280-74417-4 ARR-5-SO-2830-091715 TCLP Solid 7470A 297360
280-74417-5 ARR-1 -SO-14.5-15.5-091715 TCLP Solid 7470A 297360
280-74417-6 EB-091715-01 TCLP Water 7470A 297361
280-74417-6 MS EB-091715-01 TCLP Water 7470A 297361
280-74417-6 MSD EB-091715-01 TCLP Water 7470A 297361
280-74417-7 FD-SO-091715 TCLP Solid 7470A 297360
280-74417-8 ARR-10-SO-1920-091715 TCLP Solid 7470A 297360
280-74417-9 ARR-9-SO-1920-091715 TCLP Solid 7470A 297360
280-74417-10 ARR-4-SO-2930-091815 TCLP Solid 7470A 297360
280-74417-11 ARR-2-SO-2223-091815 TCLP Solid 7470A 297360
280-74417-12 ARR-3-SO-2324-091815 TCLP Solid 7470A 297360
280-74417-13 EB-091815-01 TCLP Water 7470A 297361
LB 280-296155/1 -C Method Blank TCLP Solid 7470A 297360
LB3 280-296148/1 -C Method Blank TCLP Water 7470A 297361
TestAmerica Denver
Page 18 of 27 10/6/2015
QC Association Summary
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Metals (Continued)
Analysis Batch : 297707 (Continued)
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
LCS 280-296148/2-C Lab Control Sample TCLP Water 7470A 297361
LCS 280-296155/2-C Lab Control Sample TCLP Solid 7470A 297360
Analysis Batch: 297718
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
280-74417-6 EB-091715-01 TCLP Water 6010B 296613
280-74417-13 EB-091815-01 TCLP Water 6010B 296613
LB3 280-296148/1 -B Method Blank TCLP Water 6010B 296613
LCS 280-296148/2-B Lab Control Sample TCLP Water 6010B 296613
LCSD 280-296148/5-B Lab Control Sample Dup TCLP Water 6010B 296613
Analysis Batch : 298024
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
280-74417-1 ARR-6-SO-2324-091715 TCLP Solid 6010B 297555
280-74417-2 ARR-8-SO-2728-091715 TCLP Solid 6010B 297555
280-74417-2 MS ARR-8-SO-2728-091715 MS TCLP Solid 6010B 297555
280-74417-2 MSD ARR-8-SO-2728-091715 MSD TCLP Solid 6010B 297555
280-74417-3 ARR-7-SO-1920-091715 TCLP Solid 6010B 297555
280-74417-4 ARR-5-SO-2830-091715 TCLP Solid 6010B 297555
280-74417-5 ARR-1 -SO-14.5-15.5-091715 TCLP Solid 6010B 297555
280-74417-7 FD-SO-091715 TCLP Solid 6010B 297555
280-74417-8 ARR-10-SO-1920-091715 TCLP Solid 6010B 297555
280-74417-9 ARR-9-SO-1920-091715 TCLP Solid 6010B 297555
280-74417-10 ARR-4-SO-2930-091815 TCLP Solid 6010B 297555
280-74417-11 ARR-2-SO-2223-091815 TCLP Solid 6010B 297555
280-74417-12 ARR-3-SO-2324-091815 TCLP Solid 6010B 297555
LB 280-297555/1 -A Method Blank Total/NA Solid 6010B 297555
LCS 280-297555/2-A Lab Control Sample Total/NA Solid 6010B 297555
TestAmerica Denver
Page 19 of 27 10/6/2015
Lab Chronicle
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Client Sample ID : ARR-6-SO-2324-091715 Lab Sample ID : 280-74417-1
Date Collected: 09/17/15 13:00 Matrix: Solid
Date Received : 09/18/15 16:35
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab I
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 3010A 10 mL 50 mL 297555 10/02/15 14:00 SJS TAL DEN
TCLP Analysis 6010B 1 10 mL 50 mL 298024 10/05/15 22:15 SJS TAL DEN
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 7470A 30 mL 50 mL 297360 10/02/15 11 :30 CMK TAL DEN
TCLP Analysis 7470A 1 30 mL 50 mL 297707 10/02/15 17:46 CMK TAL DEN
Client Sample ID : ARR-8-SO-2728-091715 Lab Sample ID : 280-74417-2
Date Collected: 09/17/15 11 :05 Matrix: Solid
Date Received : 09/18/15 16:35
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 3010A 10 mL 50 mL 297555 10/02/15 14:00 SJS TAL DEN
TCLP Analysis 6010B 1 10 mL 50 mL 298024 10/05/15 22:17 SJS TAL DEN
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 7470A 30 mL 50 mL 297360 10/02/15 11 :30 CMK TAL DEN
TCLP Analysis 7470A 1 30 mL 50 mL 297707 10/02/15 17:49 CMK TAL DEN
Client Sample ID: ARR-7-SO-1920-091715 Lab Sample ID: 280-74417-3
Date Collected: 09/17/15 14:35 Matrix: Solid
Date Received: 09/18/15 16:35
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 3010A 10 mL 50 mL 297555 10/02/15 14:00 SJS TAL DEN
TCLP Analysis 6010B 1 10 mL 50 mL 298024 10/05/15 22:37 SJS TAL DEN
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 7470A 30 mL 50 mL 297360 10/02/15 11 :30 CMK TAL DEN
TCLP Analysis 7470A 1 30 mL 50 mL 297707 10/02/15 17:56 CMK TAL DEN
Client Sample ID: ARR-5-SO-2830-091715 Lab Sample ID: 280-74417-4
Date Collected : 09/17/15 09:55 Matrix: Solid
Date Received: 09/18/15 16:35
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 3010A 10 mL 50 mL 297555 10/02/15 14:00 SJS TAL DEN
TCLP Analysis 6010B 1 10 mL 50 mL 298024 10/05/15 22:39 SJS TAL DEN
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 7470A 30 mL 50 mL 297360 10/02/15 11 :30 CMK TAL DEN
TCLP Analysis 7470A 1 30 mL 50 mL 297707 10/02/15 17:58 CMK TAL DEN
TestAmerica Denver
Page 20 of 27 10/6/2015
Lab Chronicle
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Client Sample ID : ARR-1 -SO-14.5-15.5-091715 Lab Sample ID : 280-74417-5
Date Collected : 09/17/15 13:45 Matrix: Solid
Date Received : 09/18/15 16:35
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 3010A 10 mL 50 mL 297555 10/02/15 14:00 SJS TAL DEN
TCLP Analysis 6010B 1 10 mL 50 mL 298024 10/05/15 22:42 SJS TAL DEN
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 7470A 30 mL 50 mL 297360 10/02/15 11 :30 CMK TAL DEN
TCLP Analysis 7470A 1 30 mL 50 mL 297707 10/02/15 18:00 CMK TAL DEN I
Client Sample ID : EB-091715-01 Lab Sample ID : 280-74417-6
Date Collected: 09/17/15 11 :05 Matrix: Water
Date Received: 09/18/15 16:35
Batch Batch Dil Initial Final Batch Prepared •Mii`
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
TCLP Leach 1311 1 .0 g 1 .0 mL 296148 09/23/15 07:30 ACF TAL DEN
TCLP Prep 3010A 10 mL 50 mL 296613 09/29/15 08:30 CDH TAL DEN
TCLP Analysis 6010B 1 10 mL 50 mL 297718 10/02/15 23:04 CRR TAL DEN
TCLP Leach 1311 1 .0 g 1 .0 mL 296148 09/23/15 07:30 ACF TAL DEN
TCLP Prep 7470A 30 mL 50 mL 297361 10/02/15 11 :30 CMK TAL DEN
TCLP Analysis 7470A 1 30 mL 50 mL 297707 10/02/15 18:26 CMK TAL DEN
Client Sample ID: FD-SO-091715 Lab Sample ID : 280-74417-7
Date Collected : 09/17/15 14:35 Matrix: Solid
Date Received: 09/18/15 16:35
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 3010A 10 mL 50 mL 297555 10/02/15 14:00 SJS TAL DEN
TCLP Analysis 6010B 1 10 mL 50 mL 298024 10/05/15 22:44 SJS TAL DEN
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 7470A 30 mL 50 mL 297360 10/02/15 11 :30 CMK TAL DEN
TCLP Analysis 7470A 1 30 mL 50 mL 297707 10/02/15 18:03 CMK TAL DEN
Client Sample ID : ARR-10-SO-1920-091715 Lab Sample ID : 280-74417-8
Date Collected : 09/17/15 08:40 Matrix: Solid
Date Received: 09/18/15 16:35
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 3010A 10 mL 50 mL 297555 10/02/15 14:00 SJS TAL DEN
TCLP Analysis 6010B 1 10 mL 50 mL 298024 10/05/15 22:47 SJS TAL DEN
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 7470A 30 mL 50 mL 297360 10/02/15 11 :30 CMK TAL DEN
TCLP Analysis 7470A 1 30 mL 50 mL 297707 10/02/15 18:05 CMK TAL DEN
TestAmerica Denver
Page 21 of 27 10/6/2015
Lab Chronicle
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Client Sample ID : ARR-9-SO-1920-091715 Lab Sample ID : 280-74417-9
Date Collected : 09/17/15 12: 15 Matrix: Solid
Date Received : 09/18/15 16:35
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 3010A 10 mL 50 mL 297555 10/02/15 14:00 SJS TAL DEN
TCLP Analysis 6010B 1 10 mL 50 mL 298024 10/05/15 22:49 SJS TAL DEN
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 7470A 30 mL 50 mL 297360 10/02/15 11 :30 CMK TAL DEN
TCLP Analysis 7470A 1 30 mL 50 mL 297707 10/02/15 18:12 CMK TAL DEN I
Client Sample ID : ARR-4-SO-2930-091815 Lab Sample ID : 280-74417-10
Date Collected: 09/18/15 10:30 Matrix: Solid
Date Received: 09/18/15 16:35
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 3010A 10 mL 50 mL 297555 10/02/15 14:00 SJS TAL DEN
TCLP Analysis 6010B 1 10 mL 50 mL 298024 10/05/15 22:52 SJS TAL DEN
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 15:00 ACF TAL DEN
TCLP Prep 7470A 30 mL 50 mL 297360 10/02/15 11 :30 CMK TAL DEN
TCLP Analysis 7470A 1 30 mL 50 mL 297707 10/02/15 18:14 CMK TAL DEN
Client Sample ID: ARR-2-SO-2223-091815 Lab Sample ID : 280-74417-11
Date Collected : 09/18/15 08:48 Matrix: Solid
Date Received: 09/18/15 16:35
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 09:46 ACF TAL DEN
TCLP Prep 3010A 10 mL 50 mL 297555 10/02/15 14:00 SJS TAL DEN
TCLP Analysis 6010B 1 10 mL 50 mL 298024 10/05/15 22:54 SJS TAL DEN
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 09:46 ACF TAL DEN
TCLP Prep 7470A 30 mL 50 mL 297360 10/02/15 11 :30 CMK TAL DEN
TCLP Analysis 7470A 1 30 mL 50 mL 297707 10/02/15 18:16 CMK TAL DEN
Client Sample ID : ARR-3-SO-2324-091815 Lab Sample ID : 280-74417-12
Date Collected : 09/18/15 09:35 Matrix: Solid
Date Received: 09/18/15 16:35
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 09:46 ACF TAL DEN
TCLP Prep 3010A 10 mL 50 mL 297555 10/02/15 14:00 SJS TAL DEN
TCLP Analysis 6010B 1 10 mL 50 mL 298024 10/05/15 22:57 SJS TAL DEN
TCLP Leach 1311 1 .0 g 1 .0 mL 296155 09/23/15 09:46 ACF TAL DEN
TCLP Prep 7470A 30 mL 50 mL 297360 10/02/15 11 :30 CMK TAL DEN
TCLP Analysis 7470A 1 30 mL 50 mL 297707 10/02/15 18:19 CMK TAL DEN
TestAmerica Denver
Page 22 of 27 10/6/2015
Lab Chronicle
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Client Sample ID : EB-091815-01 Lab Sample ID : 280-74417-13
Date Collected : 09/18/15 08:50 Matrix: Water
Date Received : 09/18/15 16:35
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
TCLP Leach 1311 1 .0 g 1 .0 mL 296148 09/23/15 07:30 ACF TAL DEN
TCLP Prep 3010A 10 mL 50 mL 296613 09/29/15 08:30 CDH TAL DEN
TCLP Analysis 6010B 1 10 mL 50 mL 297718 10/02/15 23:06 CRR TAL DEN
TCLP Leach 1311 1 .0 g 1 .0 mL 296148 09/23/15 07:30 ACF TAL DEN
TCLP Prep 7470A 30 mL 50 mL 297361 10/02/15 11 :30 CMK TAL DEN
TCLP Analysis 7470A 1 30 mL 50 mL 297707 10/02/15 18:33 CMK TAL DEN
Laboratory References:
TAL DEN = TestAmerica Denver, 4955 Yarrow Street. Arvada, CO 80002, TEL (303)736-0100
TestAmerica Denver
Page 23 of 27 10/6/2015
Certification Summary
Client: GEI Consultants, Inc. TestAmerica Job ID: 280-74417-1
Project/Site: GEI - Aurora Water North Campus Soils
Laboratory: TestAmerica Denver
All certifications held by this laboratory are listed. Not all certifications are applicable to this report.
Authority Program EPA Region Certification ID Expiration Date
A2LA DoD FLAP 2907.01 10-31-15
A2LA ISO/IEC 17025 2907.01 10-31 -15
Alabama State Program 4 40730 09-30-12 *
Alaska (UST) State Program 10 UST-30 04-05-16
Arizona State Program 9 AZ0713 12-19-15
Arkansas DEQ State Program 6 88-0687 06-01 -16
California State Program 9 2513 08-31 -16
Connecticut State Program 1 PH-0686 09-30-16
Florida NELAP 4 E87667 06-30-16
Georgia State Program 4 N/A 01 -09-15 *
Illinois NELAP 5 200017 04-30-16
Iowa State Program 7 370 11 -30-16
Kansas NELAP 7 E-10166 04-30-16
Louisiana NELAP 6 02096 06-30-16
Maine State Program 1 CO0002 03-03-17
Minnesota NELAP 5 8-999-405 12-31 -15
Nevada State Program 9 CO0026 07-31 -16
New Hampshire NELAP 1 205310 04-28-16
New Jersey NELAP 2 CO004 10-30-15
New York NELAP 2 11964 04-01 -16
North Carolina (WW/SW) State Program 4 358 12-31 -15
North Dakota State Program 8 R-034 01 -09-16
Oklahoma State Program 6 8614 08-31 -16
Oregon NELAP 10 4025 01 -09-16
Pennsylvania NELAP 3 68-00664 07-31 -16
South Carolina State Program 4 72002001 01 -09-16
Texas NELAP 6 T104704183-15-11 09-30-16
USDA Federal P330-13-00202 07-02-16
Utah NELAP 8 CO00026 07-31 -16
Virginia NELAP 3 460232 06-14-16
Washington State Program 10 C583 08-03-16
West Virginia DEP State Program 3 354 11 -30-15
Wisconsin State Program 5 999615430 08-31 -16
Wyoming (UST) A2LA 8 2907.01 10-31 -15
* Certification renewal pending - certification considered valid.
TestAmerica Denver
Page 24 of 27 10/6/2015
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Page 26 of 27 10/6/2015
Login Sample Receipt Checklist
Client: GEI Consultants, Inc. Job Number: 280-74417-1
Login Number: 74417 List Source: TestAmerica Denver
List Number: 1
Creator: Dedio, Michael T
Question Answer Comment
Radioactivity wasn't checked or is <1= background as measured by a survey N/A
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
COC is present. True
COC is filled out in ink and legible. True
COC is filled out with all pertinent information. True
Is the Field Sampler's name present on COC? True
There are no discrepancies between the containers received and the COC. True
Samples are received within Holding Time. True
Sample containers have legible labels. True
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
Page 27 of 27 10/6/2015
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