Alternate Source Demonstration and Addendum to the Coal ... · This addendum to the annual report...

F I N A L

Alternate Source Demonstration and Addendum to the Coal Combustion Residual 2017 Annual Groundwater Monitoring and Corrective Action Report Reid Gardner Generating Station Mesa Landfill

Prepared for

NV Energy

April 13, 2018

2485 Village View Drive Suite 350 Henderson, NV 89074

III

Contents Section Page

Acronyms and Abbreviations .............................................................................................................. v

Introduction ................................................................................................................................... 1-1 1.1 Purpose and Background ................................................................................................. 1-1 1.2 Site Location and CCR Unit Description ........................................................................... 1-1 1.3 Report Organization ......................................................................................................... 1-1

Sampling and Field Results ............................................................................................................. 2-1 2.1 Field Sampling Data ......................................................................................................... 2-1 2.2 Groundwater Elevations and Groundwater Flow ............................................................ 2-1 2.3 Status of Monitoring Well Network ................................................................................. 2-1

Laboratory Analyses, Data Validation, and Results .......................................................................... 3-1 3.1 Analytical Program ........................................................................................................... 3-1 3.2 Data Usability ................................................................................................................... 3-1 3.3 Monitoring Results ........................................................................................................... 3-1

Evaluation of Retest Monitoring Results ......................................................................................... 4-1 4.1 Background Concentration Values .................................................................................. 4-1 4.2 Retest Monitoring Results vs. Background Values .......................................................... 4-1

Demonstration and Certification .................................................................................................... 5-1 5.1 Hydrogeological Evaluation ............................................................................................. 5-1 5.2 Geochemical Evaluation .................................................................................................. 5-1 5.3 Statistical Evaluation ........................................................................................................ 5-2

5.3.1 Univariate Statistical Analysis ............................................................................. 5-2 5.3.2 25BMultivariate Analysis .......................................................................................... 5-4

5.4 Recommendation............................................................................................................. 5-4 5.5 Conclusion ........................................................................................................................ 5-4 5.6 Professional Engineer Certification.................................................................................. 5-5

References ..................................................................................................................................... 6-1

CONTENTS

IV

Appendices

A Laboratory Reports B Data Quality Review C Coal Combustion Residual Detection Monitoring Laboratory Data Line Plots D Multivariate Statistics — Principal Components Analyses

D-1 PCA Biplot by Event Type D-2 PCA Biplot by Monitoring Well D-3 PCA 95% Confidence Ellipse for All Data D-4 PCA 95% Confidence Ellipses by Well

Figures 1 Detection Monitoring Network and January 2018 Groundwater Elevations 2 Detection Monitoring Results from January 2018 Retest Event 3 Strip Chart for Fluoride Detection Monitoring Results

Tables

1 CCR Groundwater Monitoring Field Sampling Data 2 Laboratory Analytical Results – CCR Compliance Monitoring Wells 3 SSI and Retesting Summary for the Reid Gardner Landfill 4 Statistical Summary for Reid Gardner Landfill Background Data

V

Acronyms and Abbreviations µg/L microgram(s) per liter

amsl above mean sea level

AOC Administrative Order of Consent

BTOC below top of casing

DO dissolved oxygen

EPA U.S. Environmental Protection Agency

FD field duplicate

ft bgs feet below ground surface

GW groundwater

LPL lower percentage limit

mg/L milligram(s) per liter

MRL method reporting limit

mS millisiemen(s)

mV millivolt(s)

ND non-detect

NTU nephelometric turbidity unit

ORP oxidation-reduction potential

SC specific conductivity

SSI statistically significant increase

Station Reid Gardner Generating Station

TDS total dissolved solids

UPL upper prediction limit

SECTION 1

1-1

Introduction 1.1 Purpose and Background The purposes of this alternate source demonstration and addendum to the 2017 Annual Groundwater Monitoring and Correction Action Report for the Reid Gardner Generating Station Mesa Landfill are listed below.

• Document the retesting performed as part of the detection groundwater monitoring program.

• Provide a written demonstration “that a source other than the CCR unit caused the statistically significant increase [SSI] over background levels” (40 CFR 257.94(e)(2)).

This addendum to the annual report was written to meet the requirements of 40 CFR 257.94(e) of the CCR Rule. The addendum must be certified by a qualified professional engineer and completed within “90 days of detecting a statistically significant increase over background levels”, per 40 CFR 257.90(e)(2). The CCR Rule does not contain explicit requirements to place this certification in the Station’s operating record, nor post it to the publicly accessible internet site, nor notify the State Director.

The October 2017 detection monitoring event identified two apparent statistically significant increases for one constituent at each of two compliance wells. In accordance with the statistical method chosen for the sampling and analysis program, retests were performed in January of 2018 in order to confirm or refute the apparent SSI (CH2M HILL, 2017).

1.2 Site Location and CCR Unit Description Refer to the 2017 Annual Groundwater Monitoring and Correction Action Report (CH2M HILL 2018) and the groundwater monitoring system certification (CH2MHILL 2017b) for a description of the CCR unit and detailed information on site setting, geology, and groundwater.

1.3 Report Organization This annual groundwater monitoring and corrective action report presents the following information:

• Section 2: Sampling and field results

• Section 3: Laboratory analyses, data validation, and results

• Section 4: Evaluation of retest monitoring results

• Section 5: Demonstration and Certification

• Section 6: References

Report appendices present supplemental information as cited throughout the text.

SECTION 2

2-1

Sampling and Field Results The current CCR monitoring well network at the Reid Gardner Mesa Landfill is shown in Figure 1. Eleven monitoring well locations were sampled for CCR Landfill background data collection. The network includes seven downgradient wells that are sampled for compliance with background concentration values (LMW-3, LMW-4R, LMW-5R, LMW-6R, LMW-8R, KMW-12, and CCR-4). Additionally, three upgradient wells (LMW-9, LMW-10, and CCR-3) and one cross-gradient well (KMW-16) are sampled to provide information about site-wide groundwater conditions.

This section describes data collectionduring the January 24, 2018 retesting event. Field sampling data from the retesting is presented in Table 1. Water levels were measured at all monitoring wells in the CCR network, and January 2018 groundwater elevations and inferred flow direction are shown in Figure 1.

Groundwater samples for retesting were collected for the constituents and monitoring wells with October 2017 results above or below the background concentration value upper or lower prediction limits, respectively (UPLs or LPLs). Retesting groundwater samples were collected from the following CCR compliance well locations for the following 40 CFR 257 Appendix III constituents:

• LMW-5R for pH

• LMW-6R for fluoride

Results from the January 2018 sampling event are shown in Table 2.

Groundwater sampling utilized the same methods and procedures used for the October 2017 detection monitoring event. The samples were kept on ice and shipped under chain-of-custody protocol for analyses of fluoride (for LMW-6R) and pH (for LMW-5R) by Asset Laboratories, Inc., in Las Vegas, Nevada. Asset Laboratories, Inc. currently maintains National Environmental Laboratory Accreditation Program certification with the State of Nevada.

2.1 Field Sampling Data Field sampling data for retesting are presented in Table 1. The samples were of relatively low turbidity (samples measured less than 10 nephelometric turbidity units [NTU]) with stable indicator parameters including field pH, oxidation-reduction potential (ORP), temperature, and specific conductivity (SC).

Refer to the 2017 Annual Groundwater Monitoring and Correction Action Report for historical data from the detection and background groundwater sampling events.

2.2 Groundwater Elevations and Groundwater Flow Groundwater elevations were measured before purging to sample the wells, following the requirements of 40 CFR 257.93 (c), and are presented in Table 1 and Figure 1. Groundwater elevations, the hydraulic gradient of 7 x 10-3 foot/foot, and the inferred groundwater flow direction to the northeast measured from the retesting event, are all consistent with measurements over the duration of CCR background data collection and detection monitoring sampling (CH2M HILL 2018).

2.3 Status of Monitoring Well Network The wells used for retesting were noted to be in good condition and are usable for water level elevation measurements and low-flow groundwater sample collection.

SECTION 3

3-1

Laboratory Analyses, Data Validation, and Results The January 2018 retesting event laboratory analyses, data validation, and analytical results are discussed in the following subsections.

3.1 Analytical Program To perform the retesting required by the statistical method, groundwater samples were collected from the applicable CCR compliance monitoring points, and analyzed by Asset Laboratories, Inc., of Las Vegas Nevada for the following 40 CFR 257 Appendix III constituents:

• LMW-5R for pH

• LMW-6R for fluoride

The chain of custody documentation is included with laboratory reports in Appendix A of this Addendum.

3.2 Data Usability Laboratory data were validated to Stage 2B following the sampling program and EPA guidance for data review and validation (EPA, 2009a; EPA, 2014). The data quality review summary is attached as Appendix B. Retesting monitoring data were validated and found to be usable.

3.3 Monitoring Results Validated laboratory analytical results for the January 2018 samples are presented in Figure 2, Table 2, and shown with time-series plots of historical data in Appendix C.

The time series plots in Appendix C allow for a visual comparison of the background monitoring results from July 2016 through April 2017 (shown as black symbols on the plots), with the first detection monitoring event results from October 2017 and the retesting results from January 2018 (shown as red symbols). A discussion of the trend plots follows:

• The pH result from the retest sampling event for LMW-5R was between the upper and lower prediction limits, therefore the possible SSI from detection monitoring was not confirmed.

• Fluoride results from the retest sampling event for LMW-6R was above the upper prediction limit, confirming the possible SSI from detection monitoring.

SECTION 4

4-1

Evaluation of Retest Monitoring Results This section compares results from the January 2018 retesting event, which followed the first detection monitoring groundwater sampling event (October 2017), to background concentrations established for the compliance sampling points.

4.1 Background Concentration Values Refer to the 2017 Annual Groundwater Monitoring and Corrective Action Report (CH2M HILL 2018) for background concentration values. The background concentration UPLs for the applicable 40 CFR 257 Appendix III constituents are shown in Table 2 and on the time series plots in Appendix C. The UPL (and lower prediction limit for pH) is unique for each constituent at each monitoring well.

4.2 Retest Monitoring Results vs. Background Values Table 2 presents retest monitoring results and the UPL background concentration values. The same information is presented in graphic form by the time series plots in Appendix C. The plots are organized in order of the 40 CFR 257 Appendix III constituents. The left side of each plot shows the background data collection results from July 2016 to April 2017 plotted as black symbols. The October 2017 detection monitoring results and January 2018 retesting results are plotted to the right as red symbols. Where field duplicate (FD) samples were collected, those results are shown as open triangle symbols.

Of the two constituents with October 2017 detection monitoring results above the UPL or below the LPL, the October results for one constituent was found to be false positive based on retest sampling results (pH), and the detection monitoring results for one constituent was confirmed as a statistically significant increase above background based on the retest sampling results (fluoride). This review is also presented in Table 3.

Because the retest result for pH at LMW-5R is between the upper and lower prediction limits, the result from the October 2017 detection monitoring event is considered a false positive in accordance with the 1 of 2 retesting approach (CH2M 2017a). As a result, there is no statistically significant increase above background for pH at well LMW-5R.

Because the retest result for fluoride is above the upper prediction limit at LMW-6R, it confirms the result from the October 2017 detection monitoring event. As a result, the fluoride result at well LMW-6R is a statistically significant increase above background.

Fluoride is the only constituent included in both the 40 CFR 257 Appendix III and Appendix IV CCR monitoring lists. For this reason, the development of a groundwater protection standard for fluoride was evaluated under 40 CFR 257.95(h) of the CCR Rule. Because the UPL for fluoride at all detection monitoring wells is less than the federal maximum contaminant level of 4 mg/L, the maximum contaminant level is the applicable groundwater protection standard. The retest monitoring results (and all previous CCR sampling event results) for fluoride from the Landfill CCR groundwater monitoring network are below the MCL for fluoride of 4 mg/L.

SECTION 5

5-1

Demonstration and Certification This section is the written demonstration “that a source other than the CCR unit caused the statistically significant increase over background levels” for fluoride at LMW-6R, and has been written to meet the requirements of 40 CFR 257.94(e)(2).

5.1 Hydrogeological Evaluation Groundwater elevations, hydraulic gradient, and inferred groundwater flow direction to the northeast at the landfill are consistent over the duration of background data collection, detection monitoring, and the retesting event, from July 2016 through January 2018. Tables 2A and 2B in the Annual Groundwater Monitoring and Corrective Action Report (CH2M HILL 2018) show Mesa Landfill background and detection monitoring results from July 2016 through October 2017.

The spatial distribution of fluoride results in the October 2017 detection monitoring event has the highest values measured at hydraulically upgradient and cross-gradient locations. All three upgradient monitoring wells have maximum historical fluoride concentrations measured in the October 2017 event, two of which are higher than the UPL for any of the seven downgradient compliance wells:

• LMW-9, with fluoride concentrations ranging up to 3.05 mg/L, and

• CCR-3 with fluoride concentrations ranging up to 3.18 mg/L, both with maximum values in October 2017.

The cross-gradient well KMW-16 also had its maximum fluoride concentration in October 2017 at 3.67 mg/L, the highest fluoride value measured in the landfill monitoring network.

The October 2017 results for fluoride were elevated relative to the background data set at upgradient, cross-gradient, and downgradient monitoring wells, suggesting the potential for a sitewide change not restricted to downgradient well LMW-6R.

• The historical maximum fluoride concentrations for each of the three upgradient and one cross-gradient wells were measured in October 2017.

• The historical maximum fluoride concentrations for five of the seven downgradient wells were results from the October 2017 detection monitoring (CCR-4, LMW-4R, LMW-5R, LMW-6R, and LMW-8R); the exceptions to this were KMW-12 with its highest fluoride result in April 2017, and LMW-3 with its highest fluoride result in August 2016.

The spatial and temporal pattern seen in monitoring results from July 2016 thru October 2017 suggests that the increase in fluoride concentration was caused by a natural source or process separate from the landfill. Subsequent 2018 monitoring results will be checked for this same spatial distribution and for possible sitewide trends.

5.2 Geochemical Evaluation The potential for a natural source for fluoride at the concentrations observed in Mesa Landfill monitoring wells is consistent with geochemical studies in the same region. Fluoride is commonly elevated in environments with a history of evaporative concentration such as the lacustrine deposits in Moapa Valley (e.g., the Muddy Creek formation in which all of the landfill monitoring wells are screened). Recharge areas, such as the highlands above Moapa Valley extending hydraulically upgradient to the south of the Mesa landfill location, frequently contain low concentrations of sodium and trace elements such as fluoride and boron. In contrast, downgradient areas in arid or semi-arid regions, such as the downgradient location of the

SECTION 5 – DEMONSTRATION AND CERTIFICATION

5-2

landfill near the edge of the Mesa above the Muddy River, frequently have sodium as the dominant cation along with increased concentrations of fluoride and boron (Robertson, 1991). A similar hydrogeologic environment in western Arizona had natural levels of groundwater fluoride that ranged up to nearly 6 mg/L (ADEQ, 2001).

5.3 Statistical Evaluation Background limits were established using 9 rounds of background data collected over 10 months from 7 detection monitoring wells in the Mesa Landfill CCR well network. Using the established background limits for the detection phase, Table 3 presents a summary of well-constituent pairs identified as possible SSIs from October 2017 results, and further retesting results for the Mesa Landfill CCR site. Based on Table 3, the following information is noteworthy:

Possible SSIs were identified at 2 well-constituent pairs: 1 well for pH, and 1 well for fluoride. No more than one constituent with possible SSI was observed at any single well of the CCR well

network. Out of the 2 well-constituent pairs, only 1 well-constituent pair was confirmed as an SSI during

retesting. The percentage increase over the established background limits ranges from 1.0% to 2.8% for

the compliance monitoring event and -2.9% to 7.5% for the retesting monitoring event. The percentage change between the compliance and retesting monitoring events ranges from

-3.6% to 9.6%.

5.3.1 Univariate Statistical Analysis The properties of data for individual constituents were examined over time. The background data set was compared to both historical data from monitoring wells that pre-date CCR background data collection, and to detection monitoring results. This review led to findings that support the alternative source demonstration, namely that:

• Natural variability is likely not fully captured in the short duration of the background data set (section 5.3.1.1) with nine background sampling events completed over a ten-month duration.

• Fluoride results show consistent changes from background to detection monitoring, at upgradient and downgradient wells, and downgradient detection monitoring results are not significantly different from upgradient results. (section 5.3.1.2).

• Given the short duration of background data collection, background values should be reviewed as a periodic process (section 5.4)

These findings are reflected in the small difference between SSI results and the background UPL values for SSI well-constituent pairs. These findings also support the recommendation (section 5.4) to periodically review the background concentration values using the background and detection data sets to see if they can be combined, creating a larger background sample size.

5.3.1.1 Uncertainty Associated with Established Background Levels

Using the established background limits for the detection phase, it was observed that only fluoride at well LMW-6R exceeded its background limit. Table 4 presents a summary of fluoride concentrations at all downgradient wells, along with the fluoride concentration at LMW-6R identified as a statistically significant increase (SSI) with its retesting results. Based on Table 4, the following points should be noted:


PR1003171617LAS 5-3

• There are 7 compliance wells in the network. Out of these 7 wells, the fluoride concentrations at 6 wells follow a normal distribution whereas at one well (CCR-4), normality of fluoride concentrations could only be assumed after transformation.

• To understand fluoride concentration variability, 6 wells (KMW-12, LMW-3, LMW-4R, LMW-5R, LMW-6R, and LMW-8R) complying with the normality assumption were considered. Among these six wells, LMW-6R shows the lowest variability as indicated by its coefficient of variation (CV) value.

To understand whether the confirmed SSI of fluoride at LMW-6R is caused by a release from the landfill, it is important to understand how the background limits were established and the uncertainty associated with them. The background data were collected within a compressed schedule comprising of only 10 months which may not be sufficient to capture the actual natural variability. The observed fluoride variability for the background data ranges from CV of 0.06 to 0.21 (see Table 4). The confirmed RGS landfill confirmed SSI is only marginally above its background UPL (for the percent change relative to the background limit between the compliance and retesting monitoring events, see Table 3). This can be expected due to natural variability considering the observed range in CV values for the background data.

5.3.1.2 Comparison of Upgradient, Crossgradient and Downgradient Data

Figure 3 shows one-dimensional scatterplots (also referred to as strip charts) of fluoride concentrations at the up/cross-gradient and downgradient wells during the compliance monitoring event. Also included in the strip charts are the 95 percent confidence interval for the mean concentration at each area. Comparing data from upgradient, cross-gradient and downgradient wells offers a site-wide perspective that gives context for the compliance results from downgradient wells. Even though an intrawell statistical method was required for compliance monitoring based on properties of the background data set, the qualitative comparison summarized in Figure 3 is an appropriate check for site-wide changes.

As shown in Figure 3, the concentrations for each area (up/cross-gradient and downgradient) overlap. This indicates that the fluoride concentration is similar across the RGS CCR Landfill area in upgradient and crossgradient monitoring wells unaffected by a release, and in downgradient monitoring wells that could potentially be affected by a release.

A test of central tendency was conducted to determine with statistical confidence, whether fluoride concentrations downgradient from the RGS Landfill are different, on average, from up/cross-gradient concentrations during the compliance sampling event. The appropriate type of central tendency comparison test was determined based on the assumed statistical distribution of the parent distributions of the two data sets. Because the up/cross-gradient and downgradient data sets comply with the assumptions of normality (excluding CCR-4) and equality of variances, a t-test was performed on the raw data to determine whether the means of the two populations appear to be different from one another.

The comparison was performed using a null hypothesis that fluoride concentrations downgradient were equal to up/cross-gradient concentrations. For this method, a probability is calculated to assess the degree to which any deviation in the combined ranking distribution would be due solely to chance; any such deviation, if not due solely to chance, would indicate a shift from the null hypothesis, and a finding that downgradient concentrations are statistically different than up/cross-gradient concentrations. Based on the obtained p-value of 0.066, fluoride concentrations in downgradient wells are not statistically different than those in up- and side-gradient wells for the compliance sampling event.

5.3.1.3 Summary of Univariate Statistical Review Based on the above univariate statistical analysis, it can be concluded that the apparently confirmed well-constituent pair (fluoride at LMW-6R) identified for a SSI at the RGS Mesa Landfill CCR site does not appear to be caused by a release. Instead, the SSI is being caused either by natural variability not reflected in the background data, or an inherent sitewide trend that includes upgradient monitoring locations.


5-4

5.3.2 25BMultivariate Analysis Multivariate analysis using principal component analysis (PCA) was conducted to examine results for all constituents simultaneously, and identify whether samples from the RGS Mesa Landfill CCR site with exceedances of background exhibit different statistical characteristics than the characteristics exhibited by the remaining sample population (i.e., background samples and compliance samples with no exceedances). These analyses and results are described in Appendix D.

Results of the PCA multivariate analysis, using the first and second principal components as described in Appendix D, indicate that the range of composition of the compliance samples at the Mesa Landfill are similar to the background samples. Results from another sample population, such as if a release occurred at the Landfill, would be identified by data points that plot far away from the other sample results. This pattern revealed by multivariate analysis leads to the conclusion that the compliance sample analytical results are not significantly different than the chemical signature of ambient groundwater. The variability in the sample populations are likely due to natural geochemical and hydrogeological processes within the monitoring area.

5.4 Recommendation Based on the relatively short duration of background data collection, it is recommended to re-evaluate background concentration values (UPLs and LPLs) after completing four rounds of detection monitoring, a milestone anticipated in the first half of 2019. EPA (2009a) recommends that all observations designated as background data should be evaluated periodically to ensure that they still adequately reflect the current natural or baseline groundwater conditions to help establish appropriate and representative background limits. In general, the set of new observations is statistically compared to the existing background data, as appropriate. If the data are found to be comparable, then the new data set is combined with the existing background data set to re-establish the statistical background limits. If the data are shown to be different, then the data will be reviewed to evaluate the cause of the difference. Barring evidence of a release, the new data should be considered more representative of present-day groundwater conditions and used for background limits.

5.5 Conclusion The statistical, hydrogeological, and geochemical evaluations in this addendum demonstrate that a source other than the CCR unit has caused the statistically significant increase in fluoride at LMW-6R. More specifically, and as allowed by 40 CFR 257.94(e)(2), the statistically significant increase is attributed to a “natural variation in groundwater quality” that was not captured in the 10-month duration of CCR background data collection.


PR1003171617LAS 5-5

5.6 Professional Engineer Certification As required by 40 CFR 257.94(e)(2) of the CCR Rule, the information in this addendum is accurate.

CH2M 2485 Village View Drive Henderson, NV, 89074 702-369-6175

SECTION 7

6-1

References Arizona Department of Environmental Quality (ADEQ). 2001. Ambient Ground Water Quality of the Sacramento Valley Basin: A 1999 Baseline Study. ADEQ Open File Report 01 04.

CH2M HILL. 2017a. Statistical Method Certification, Coal Combustion Residuals Landfill, Reid Gardner Generating Station, Moapa, Nevada. October.

CH2M HILL Engineers, Inc. (CH2M HILL). 2017b. Groundwater Monitoring System Certification, Coal Combustion Residuals Landfill, Reid Gardner Generating Station, Nevada. October.

CH2M HILL Engineers, Inc. (CH2M HILL). 2018. Coal Combustion Residual 2017 Annual Groundwater Monitoring and Corrective Action Report, Reid Gardner Generating Station, Nevada. January.

Robertson, F.N., 1991. Geochemistry of Ground Water in Alluvial Basins of Arizona and Adjacent Parts of Nevada, New Mexico, and California. U.S. Geological Survey Professional Paper 1406-C.

U.S. Environmental Protection Agency (EPA). 2009a. Guidance for Labelling Externally Validated Laboratory Analytical Data for Superfund Use. EPA 540-R-08-005. January.

U.S. Environmental Protection Agency (EPA). 2009b. Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities: Unified Guidance. EPA-530-R-09-007. Office of Resource Conservation and Recovery, U.S. Environmental Protection Agency. March.

U.S. Environmental Protection Agency (EPA). 2014. National Functional Guidelines for Inorganic Superfund Data Review. August.

U.S. Environmental Protection Agency (EPA). 2015. Federal Code of Regulations section 40 part 257, Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals from Electric Utilities; Final Rule.

Figures

"D

"D

"D

"D

"D

"D

"D

"D

"D

"D

"D

CCR-31605.224

CCR-41595.95

KMW-121589.13

KMW-161599.49

LMW-31590.54

LMW-4R1594.30

LMW-5R1594.33

LMW-6R1597.85

LMW-8R1590.10

LMW-91606.97

LMW-101608.93

1590

1605

1600

1595

FIGURE 1DETECTION MONITORING

NETWORK AND JANUARY 2018GROUNDWATER ELEVATIONS

REID GARDNER STATIONMOAPA, NEVADA

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MESAEDGEBLUFF

CCRLANDFILL

LATERALEXPANSION

RGS MESA AREAUTILITY CORRIDOR (SW-NE)

FIGUREEXTENT

0 500250

Feet

AERIAL IMAGE SOURCE:AERO GRAPHICS, 01/08/2017

MESAEDGEBLUFF

LEGEND"D"D"D

CCR LANDFILL DOWNGRADIENT WELL

CCR LANDFILL SIDEGRADIENT WELL

CCR LANDFILL UPGRADIENT WELL

APPROXIMATE NEVADA ENERGY PROPERTY BOUNDARY

GROUNDWATER ELEVATION CONTOUR

APPARENT GROUNDWATER FLOW DIRECTION

"D

"D

"D

"D

"D

"D

"D

"D

"D

"D

"D

CCR-3

CCR-4

KMW-12

KMW-16

LMW-3

LMW-4R

LMW-6R

LMW-8R

LMW-9

LMW-10

FIGURE 2DETECTION MONITORINGRESAMPLING RESULTS -

JANUARY 2018REID GARDNER STATION

MOAPA, NEVADA

$

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MESAEDGEBLUFF

CCRLANDFILL

RGS MESA AREA

UTILITY CORRIDOR (SW-NE)

FIGUREEXTENT

0 500250

Feet

AERIAL IMAGE SOURCE:AERO GRAPHICS, 01/08/2017

LATERALEXPANSION

LEGEND"D CCR LANDFILL DOWNGRADIENT WELL

"D CCR LANDFILL SIDEGRADIENT WELL

"D CCR LANDFILL UPGRADIENT WELL APPROXIMATE NEVADA ENERGY PROPERTY BOUNDARY

MESAEDGEBLUFF

NOTES:

UPL VALUES ARE SHOWN IN TABLE 2A AND APPENDIX C

ALL RESULTS IN mg/L

Constituent UPLJan 24, 2018

ResultFluoride 2.90 mg/L 3.12 mg/L

LMW-6R

CONFIRMED SSI RESULTS ABOVE UPL ARE BOLD AND HIGHLIGHTED

Tables

JETT 1

Table 1. Field Sampling Data — January 2018 CCR Retesting Event, Reid Gardner Mesa Landfill

Location Sample

Date

Depth to GW Feet

BTOC Result

DO mg/L

Result

Drawdown Feet

Result

ORP mV

Result

pH

Units Result

Specific Conductivity

mS Result

Temperature degrees Celsius Result

Turbidity NTU

Result

LMW-5R retesting 1/24/2018 137.62 4.82 0.08 71.8 7.46 6.16 20.54 0.86

LMW-6R retesting 1/24/2018 139.66 2.51 0.16 72.1 7.04 8.39 20.15 0.44

Note:

GE = groundwater

NTU = nephelometric turbidity unit

JETT 2

Table 2. Laboratory Results - January 2018 CCR Retesting Event, Reid Gardner Mesa Landfill

Location

Constituent Method Units

Sample Date

Boron (App III) SW6010B

µg/L Result

Calcium (App III)

SW6010B µg/L Result

Chloride (App III)

SW9056 mg/L Result

Fluoride (App III)

SW9056 mg/L Result

Sulfate (App III) SW9056

mg/L Result

pH (App III)

SW9040B pH units

Result

Total Dissolved Solids

(App III) SM2540C mg/L

Result

LMW-5R UPL 10600 481000 618 1.97 3140 7.63 5160

LPL -- -- -- -- -- 7.27 --

retesting 1/24/2018 -- -- -- -- -- 7.41 --

LMW-6R UPL 10000 450000 701 2.90 2700 7.88 4910

LPL -- -- -- -- -- 7.14 --

retesting 1/24/2018 -- -- -- 3.12 -- -- --

Note:

Bolded result values exceeded the UPL value

Table 3: SSI and Retesting Summary for the Reid Gardner Landfill

Location Constituent Units UPL

LPL

Detection Monitoring

Result (10/18/2017 – 10/19/2017)

Possible SSI

Retesting Result

(01/24/2018)

Retesting Confirmation

% Increase over Background for the Compliance Event

% Increase over Background for the Retesting Event

% Change Between Compliance and Retesting Events

LMW‐5R pH SU 7.63 7.27 7.68 Yes 7.41 No 1% ‐2.9% ‐3.6%

LMW‐6R Fluoride mg/L 2.90 ‐‐ 2.98 Yes 3.12 Yes 2.8% 7.5% 9.6% UPL = upper prediction limit LPL = lower prediction limit SSI = statistically significant increase

Table 4: SSI Statistical Summary for the Reid Gardner Landfill

Wells PARAM UNITS COUNT % DETECT MIN MAX MEAN SD NORMALITY UPL CV

Compliance Monitoring (Oct. 2017)

SSI Retesting Monitoring (Jan. 2018)

Retesting Confirmation

CCR-4 Fluoride mg/L 9 100 1.46 1.78 1.55 0.10 NO 2.23 0.06 1.98 No

KMW-12 Fluoride mg/L 9 100 1.72 2.32 1.90 0.18 YES 2.41 0.10 2.18 No

LMW-3 Fluoride mg/L 9 100 0.984 1.62 1.22 0.21 YES 1.79 0.17 1.55 No

LMW-4R Fluoride mg/L 9 100 1.96 2.52 2.16 0.18 YES 2.65 0.08 2.61 No


LMW-6R Fluoride mg/L 9 100 2.3 2.79 2.47 0.15 YES 2.90 0.06 2.98 Yes 3.12 Yes


Appendix A Laboratory Reports

NEVADA 3151 W. Post Rd., Las Vegas, NV 89118

P: 702.307.2659 F: 702.307.2691

“Serving Clients with Passion and Professionalism”

CALIFORNIA 11110 Artesia Blvd., Ste B, Cerritos, CA 90703

P: 562.219.7435 F: 562.219.7436

PRIVILEGED AND CONFIDENTIAL

CH2M HILLProject: Reid Gardner CCR Detection

MonitoringProject No.: 690301.GW.01

ASSET Laboratories Work Order:N028224

ANALYTICAL and QC RESULTSSAMPLE RECEIVING ITEMS

RAW DATA

1


P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

PageCover Page 1-5Analytical Result/QC Summary Reports 6-11Sample Receiving Items 12-15Raw Data

EPA 9040B 16-23 EPA 9056 24-127

ASSET Laboratories Work Order: N028224

Table of Contents

Item

2

NEVADA|P:702.307.2659 F:702.307.2691 3151 W. Post Rd., Las Vegas, NV 89118 ELAP Cert 2676 | NV Cert NV00922

ORELAP/NELAP Cert 4046 “Serving Clients with Passion and Professionalism”

CALIFORNIA|P:562.219.7435 F:562.219.7436 11110 Artesia Blvd., Ste B, Cerritos, CA 90703

ELAP Cert 2921 EPA ID CA01638

February 07, 2018

CH2M HILLMark Fesler/RDD

Attention: Mark Fesler/RDD

RE: Reid Gardner CCR Detection Monitoring, 6903

Workorder No.: N028224FAX: (510) 622-9129TEL: (530) 229-3273

155 Grand Avenue, Suite 1000Oakland, CA 94612

Thank you for the opportunity to service the needs of your company.

Please feel free to call me at (702) 307-2659 if I can be of further assistance to your company.

Sincerely,

Quennie Manimtim

Laboratory Director

Enclosed are the results for sample(s) received on January 24, 2018 by ASSET Laboratories . The sample(s) are tested for the parameters as indicated in the enclosed chain of custody in accordance with the applicable laboratory certifications.

The cover letter is an integral part of this analytical report. This Laboratory Report cannot be reproduced in part or in its entirety without written permission from the client and Advanced Technology Laboratories - Las Vegas.

3





07-Feb-18Date:ASSET Laboratories

Project: Reid Gardner CCR Detection Monitoring, 69030CLIENT: CH2M HILL

Lab Order: N028224CASE NARRATIVE

SAMPLE RECEIVING/GENERAL COMMENTS:

Samples were received intact with proper chain of custody documentation.

Cooler temperature and sample preservation were verified upon receipt of samples if applicable.

Information on sample receipt conditions including discrepancies can be found in attached Sample Receipt Checklist Form.

Samples were analyzed within method holding time.

4






Project: Reid Gardner CCR Detection Monitoring, 69030CLIENT: CH2M HILL

Lab Order: N028224Work Order Sample Summary

Lab Sample ID Client Sample ID Collection DateMatrix Date Received

Contract No:

Date Reported

N028224-001A LMW-5R-012418 1/24/2018 3:05:00 PM 1/24/2018 2/7/2018Water

N028224-002A LMW-6R-012418 1/24/2018 2:10:00 PM 1/24/2018 2/7/2018Water

N028224-003A EB-1-012418 1/24/2018 2:35:00 PM 1/24/2018 2/7/2018Water

5





Project: Reid Gardner CCR Detection Monitoring, 69030

Client Sample ID: LMW-5R-012418Collection Date: 1/24/2018 3:05:00 PM

Matrix: WATER

CLIENT: CH2M HILLLab Order: N028224

Lab ID: N028224-001

ASSET Laboratories Print Date: 07-Feb-18

Analyses Result Qual Units Date AnalyzedDFPQLMDL

ANALYTICAL RESULTS

PHEPA 9040B

Analyst: MGRunID: NV00922-WC_180125A R121653QC Batch: PrepDate

pH 0.100 pH Units 17.41 0.100 1/25/2018Temp. at time of pH Analysis 0 °C 125.0 0 1/25/2018

Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation rangeH Holding times for preparation or analysis exceeded ND Not Detected at the Reporting LimitS Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified

DO Surrogate Diluted Out

6






Client Sample ID: EB-1-012418Collection Date: 1/24/2018 2:35:00 PM

Matrix: WATER


Lab ID: N028224-003



ANALYTICAL RESULTS

PHEPA 9040B

Analyst: MGRunID: NV00922-WC_180125A R121653QC Batch: PrepDate

pH 0.100 pH Units 16.40 0.100 1/25/2018Temp. at time of pH Analysis 0 °C 125.0 0 1/25/2018



7







CLIENT: CH2M HILLWork Order: N028224

ANALYTICAL QC SUMMARY REPORTTestCode: 9040_W_NVE

Sample ID N028224-001ADUP

Batch ID: R121653 TestNo: EPA 9040B Analysis Date: 1/25/2018

Prep Date:

Analyte Result SPK value SPK Ref Val %REC RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: pH Units

PQL

Client ID: ZZZZZZ

RunNo: 121653

SeqNo: 2922519

DUPSampType: TestCode: 9040_W_NVE

pH 100.100 7.410 0.2707.390Temp. at time of pH Analysis 00 25.00 025.000

Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded

ND Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interferenceDO Surrogate Diluted Out Calculations are based on raw values

8






Client Sample ID: LMW-6R-012418Collection Date: 1/24/2018 2:10:00 PM

Matrix: WATER


Lab ID: N028224-002



ANALYTICAL RESULTS

ANIONS BY ION CHROMATOGRAPHYEPA 9056

Analyst: RABRunID: NV00922-IC8_180129A R121718QC Batch: PrepDate

Fluoride 0.500 mg/L 53.12 0.0325 1/29/2018 11:10 AM



9






Client Sample ID: EB-1-012418Collection Date: 1/24/2018 2:35:00 PM

Matrix: WATER


Lab ID: N028224-003



ANALYTICAL RESULTS

ANIONS BY ION CHROMATOGRAPHYEPA 9056

Analyst: RABRunID: NV00922-IC8_180129A R121718QC Batch: PrepDate

Fluoride 0.100 mg/L 1ND 0.00650 1/29/2018 11:25 AM



10








ANALYTICAL QC SUMMARY REPORTTestCode: 9056_W_F_NVE

Sample ID LCS-R121718_F

Batch ID: R121718 TestNo: EPA 9056 Analysis Date: 1/29/2018

Prep Date:


Units: mg/L

PQL

Client ID: LCSW

RunNo: 121718

SeqNo: 2921376

LCSSampType: TestCode: 9056_W _F_N

Fluoride 1.250 106 90 1100.100 01.325

Sample ID MB-R121718_F


Prep Date:


Units: mg/L

PQL

Client ID: PBW

RunNo: 121718

SeqNo: 2921377

MBLKSampType: TestCode: 9056_W _F_N

Fluoride 0.100ND

Sample ID N028224-002ADUP


Prep Date:


Units: mg/L

PQL

Client ID: ZZZZZZ

RunNo: 121718

SeqNo: 2921385

DUPSampType: TestCode: 9056_W _F_N

Fluoride 200.500 3.125 3.923.005

Sample ID N028225-001AMS


Prep Date:


Units: mg/L

PQL

Client ID: ZZZZZZ

RunNo: 121718

SeqNo: 2921386

MSSampType: TestCode: 9056_W _F_N

Fluoride 6.250 103 80 1200.500 3.1569.571

Sample ID N028225-001AMSD


Prep Date:


Units: mg/L

PQL

Client ID: ZZZZZZ

RunNo: 121718

SeqNo: 2921387

MSDSampType: TestCode: 9056_W _F_N

Fluoride 6.250 100 80 120 200.500 3.156 9.571 1.579.422



11


P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

SAMPLE RECEIVING ITEMS

12

N028224 - 01- 02- 03

13

ASSET LaboratoriesPlease review the checklist below. Any NO signifies non-compliance. Any non-compliance will be noted and must be understood as having an impact on the quality of the data. All tests will be performed as requested regardless of any compliance issues.

If you have any questions or further instruction, please contact our Project Coordinator at (702) 307-2659.

Carrier name: ASSET

Cooler Received/Opened On: 1/24/2018

Rep sample Temp (Deg C): 2.8 IR Gun ID: 2

Temp Blank: Yes No

Last 4 digits of Tracking No.: N/A

Cooling process: Ice Ice Pack Dry Ice Other None

Packing Material Used: None

Workorder: N028224

Sample Receipt Checklist

4. Chain of custody present? Yes No

6. Chain of custody signed when relinquished and received? Yes No

7. Chain of custody agrees with sample labels? Yes No

8. Samples in proper container/bottle? Yes No

9. Sample containers intact? Yes No

10. Sufficient sample volume for indicated test? Yes No

11. All samples received within holding time? Yes No

Yes No NA13. Water - VOA vials have zero headspace?

14. Water - pH acceptable upon receipt? Yes No NAExample: pH > 12 for (CN,S); pH<2 for Metals

1. Shipping container/cooler in good condition? Yes No Not Present

2. Custody seals intact, signed, dated on shippping container/cooler? Yes No Not Present

3. Custody seals intact on sample bottles? Yes No Not Present

5. Sampler's name present in COC? Yes No

12. Temperature of rep sample or Temp Blank within acceptable limit? Yes No NA

Yes No NA15. Did the bottle labels indicate correct preservatives used?

16. Were there Non-Conformance issues at login? Yes No NAWas Client notified? Yes No NA

Comments:

Checklist Completed B MBC Reviewed By:

14

Sample ID Client Sample ID Date Collected

Date Received:

Date Due Matrix Test No

WORK ORDER Summary 25-Jan-18

WorkOrder: N028224

Comments:

Client ID: CH2HI01

Project: Reid Gardner CCR Detection Monitoring, 6903 QC Level: Level IV

Hld MS Sub

1/24/2018

Test Name

ASSET Laboratories

Storage

N028224-001A LMW-5R-012418 1/24/2018 3:05:00 PM 2/7/2018 Water EPA 9040B pH WW

N028224-002A LMW-6R-012418 1/24/2018 2:10:00 PM 2/7/2018 EPA 9056 ANIONS BY ION CHROMATOGRAPHY WW

N028224-003A EB-1-012418 1/24/2018 2:35:00 PM 2/7/2018 EPA 9040B pH WW

2/7/2018 EPA 9056 ANIONS BY ION CHROMATOGRAPHY WW

N028224-004A FOLDER 2/7/2018 2/7/2018 Folder Folder LAB

2/7/2018 Folder Folder LAB

1 of 1Page

15


P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

EPA 9040B

16

FIRST LEVEL REVIEW:

QC Batch Number: R121653 Analyst: MG

ASSET #: N028224 Date Analyzed:

Method: EPA 160.2

Y N N/A Y N N/A1. ICAL before initial sample analysis or every 24 hrs. X2. Does correlation coefficient,r, meet criteria ?( r = 0.995) X3. ICV within ± 15% of expected value. X

Continuing Calibration4. CCV after every 10 samples and at the end of analysis sequence. X5. CCV within ± 15% of expected value. X6. Calibration blanks run after ICV and CCV? X7. Do all calibration blanks ( ICB and CCBs) meet criteria? (< PQL) X

Sample Information8. All samples are within linear range. X9. Are all samples analyzed within hold time. X

QC Items10. Method blank values are below the PQL . X11. LCS compounds within control limits. X12. MS/MSD, RPD's are within control limits X

Raw Data and Miscellaneous Information13. Are Non-Conformances documented X14. Runlog complete and included in package. X

Initial Calibration

Ist Level Review 2nd Level Review

Wet Chemistry Technical Batch Review Checklist (CH2MHILL)

1/25/2018

ASSET LABORATORIES - LAS VEGAS

15. Spectrophotometer tape included (Spec work only) X16. Digestion log complete and included in package (if applicable) X

Preliminary Report17. Does the raw data match the preliminary report? X18. Are analytical results correct? X19. Is the QC summary report present and complete? X

Comments:

SECOND LEVEL REVIEW:

Yes No N/A1. All assigned sample(s) analyzed2. Matrix / units correct3. Does batch meet QC requirements?4. Are analytical results correct? (Ex. dilutions, calculations.etc.)5. Is first level review correct and complete?

1st Level Reviewer Date:

2nd Level Reviewer Date: 17

3151 W. Post Road, Las Vegas, NV 89118 P: 702.307.2659 F: 702.307.2691www.assetlaboratories.comASSET LABORATORIES

ANALYTICAL SUPPORT SERVICES FOR ENVIRONMENTAL TECHNOLOGIES

LOGBOOK DATA,QUANTITATION REPORT and/or

SPECTRA

18

http://www.assetlaboratories.com


P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

EPA 9056

24

IC CH2MREV.7.0071116

QC Batch Number: R121718 Instrument ID: IC-08ASSET #: Analyst: RBA

Date Analyzed:Method:

EPA 218.6/EPA 218.7EPA 300.0 EPA 218.6/EPA 218.7 LLEPA 7199 X Others ___________

Initial Calibration and Initial Calibration VerificationY N N/A Y N N/A

1. ICAL before initial sample analysis and is not more than 4 weeks old. X2. Does correlation coefficient,r, meet criteria ?( r = 0.995, r =0.999 (Cr6+)) X3. ICV within ± 10% of expected value. X

Continuing Calibration4. CCV after every 10 injections and at the end of analysis sequence. X5. CCV within ± 10% of expected value. (± 5% for EPA 218.6) X6. Calibration blanks run after ICV and CCV? X7. Is the buffer less than MDL? If not, discontinue analysis. (Cr6+ only) X8. X9. X

Sample Information10. All samples are within linear range. X11. X12. Duplicate sample injections for every sample. (7199 only) X13. For Topock, matrix spike protocol performed on all samples? (Cr6+ only) X14. For Hinkley DOM samples, matrix spike protocol performed on all samples ? (Cr6+ only) X15. For samples < 4 ppb, does the Cr result differs with Cr6+ by no more than 0.7 ppb? X16. For samples > 4 ppb, does the Cr result differs with Cr6+ by no more than 20%? X17. For samples that failed Cr vs Cr6+ criteria, is matrix spike protocol performed ? X18. For dilution and MS spike protocol, spike recovery within 90-110%? (Cr6+ only) X19. EPA 3060A digestion performed on solid samples (7199 only) X20. Are all peaks within RT window, ± 0.2 min? X21. Are all samples analyzed within hold time? X

22. X

QC Items23. Method blank values meets criteria. (<1/2 PQL for 300, <0.02 for Cr6+) X24. LCS compounds are within control limits. X25. MS/MSD, RPD's are within control limits. X26. Soluble and Insoluble matrix spike within control limits (7199 solids only) X

Raw Data and Miscellaneous Information27. Runlog complete and included in package. X28. Extraction log complete and included in package (if applicable) X29. All manual integrations initialed, date and reasons included. X30. Before and after manual integration chromatogram included in the package X31. All samples and QC raw data present in package. X

Preliminary Report32. Does the raw data match the preliminary report? X33. Are analytical results correct?(Ex. dilutions, calculations.etc.) X34 Is the QC summary report present and complete? X

Comments:

SECOND LEVEL REVIEW:

Y N N/A1. All assigned sample(s) analyzed2. Matrix / units correct3. Is QC present and complete?4. Are analytical results correct? (dilutions,calculations)5. Is first level review correct and complete?

1st Level Reviewer Date:

2nd Level Reviewer Date:

Is low level check at PQL within ± 20% for 218.6/218.7/7199? ± 30% for 218.6/218.7LL?

9056

1/29/2018

All samples pH within 9.3-9.7 when analyzed?

For Hinkley projects (DOM & ATU only), are samples with result ≤ 0.2 ug/L analyzed by low level method? (Cr6+ only)

N028224 / N028225 / N028226

IC Technical Batch Review Checklist (CH2MHILL)

Ist Level Review 2nd Level Review

Do all calibration blanks ( ICB and CCBs) meet criteria? (<1/2PQL for 300, <0.02 for Cr6+)

ASSET LABORATORIES - LAS VEGAS

25


P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

SAMPLE CALCULATION

26

Sample Calculation

METHOD: TEST NAME: INORGANIC ANIONS BY ICMATRIX:

FORMULA:

= A * DF

where:

A = mg/L, IC calculated concentrationDF = dilution factor

For

= 0.625 * 5

3.125

= 3.12

=

Reporting result in three significant values,

Fluoride, mg/L

Fluoride, mg/L

Fluoride, mg/L

WATER

EPA 300

N028224-002A concentration in mg/L is calculated as follows:

Calculate the Fluoride concentration, in mg/L, in the orignal sample as follows:

IC8 RBA 2/7/2018 5:38 PM 27


P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

ANALYSIS RUN LOG

28

Sequence: IC-08_180126C Page 1 of 2Operator: IC-05 Printed: 1/28/2018 11:49:47 PM

Title:Datasource: D1NZHKQ1_localLocation: IC-08_ANIONS\2_Data\2017 AnionsTimebase: IC-08_ANIONS Created: 1/26/2018 3:20:46 PM by IC-05#Samples: 25 Last Update: 1/28/2018 11:43:28 PM by IC-05

Chromeleon © Dionex Corporation, Version 6.80 SR10 Build 2818 (166959)

No. Name Type Inj. Vol. Program Method Status1 BLANK,BLANK,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished

2 Std - 0 Standard 1000.0 Anions Default EPA 300_0_180126 Finished






8 ICV,ICV,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished

9 ICB,ICB,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished

10 MB-H2O,MBLK,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished

11 LCS-H2O,LCS,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished

12 N028236-005C,SAMP,5 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished



15 N028236-003A,SAMP,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished




19 N028236-002CDUP,DUP,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished

20 CCV-1,CCV,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished

21 CCB-1,CCB,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished

22 N028236-002CMS,MS,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished

23 N028236-002CMSD,MSD,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished



IC8 RBA 1/29/2018 4:14 PM 29




No. Name Inj. Date/Time Comment1 BLANK,BLANK,1 1/26/2018 3:21:41 PM BLANK

2 Std - 0 1/26/2018 3:36:59 PM IBLANK

3 Std - 1 1/26/2018 3:52:16 PM STD-LOW

4 Std - 2 1/26/2018 4:10:28 PM STD

5 Std - 3 1/26/2018 4:25:46 PM STD

6 Std - 4 1/26/2018 4:41:04 PM STD

7 Std - 5 1/26/2018 4:56:22 PM STD-HIGH

8 ICV,ICV,1 1/26/2018 5:26:58 PM BLANK

9 ICB,ICB,1 1/26/2018 5:42:16 PM CCV

10 MB-H2O,MBLK,1 1/26/2018 5:57:34 PM METHOD BLANK

11 LCS-H2O,LCS,1 1/26/2018 6:12:52 PM LCS

12 N028236-005C,SAMP,5 1/26/2018 6:28:10 PM SAMP,2>10mL

13 N028236-001C,SAMP,1 1/26/2018 6:43:28 PM SAMP,10mL

14 N028236-002C,SAMP,1 1/26/2018 6:58:47 PM SAMP,10mL

15 N028236-003A,SAMP,1 1/26/2018 7:14:05 PM SAMP,10mL

16 N028236-004C,SAMP,5 1/26/2018 7:29:23 PM SAMP,2>10mL

17 N028236-004C,SAMP,20 1/26/2018 7:44:41 PM SAMP,0.5>10mL

18 N028236-001C,SAMP,2 1/26/2018 7:59:59 PM SAMP,5>10mL

19 N028236-002CDUP,DUP,1 1/26/2018 8:15:17 PM DUP,10mL

20 CCV-1,CCV,1 1/26/2018 8:30:35 PM CCV

21 CCB-1,CCB,1 1/26/2018 8:45:53 PM CCV

22 N028236-002CMS,MS,1 1/26/2018 9:01:11 PM MS,10mL

23 N028236-002CMSD,MSD,1 1/26/2018 9:16:28 PM MSD,10mL

24 CCV-2,CCV,1 1/26/2018 9:31:46 PM CCV

25 CCB-2,CCB,1 1/26/2018 9:47:04 PM CCB

IC8 RBA 1/29/2018 4:14 PM 30

Sequence: IC-08_180129A Page 1 of 2Operator: IC-05 Printed: 2/6/2018 2:37:52 PM

Title: Datasource: D1NZHKQ1_localLocation: IC-08_ANIONS\2_Data\2017 AnionsTimebase: IC-08_ANIONS Created: 1/29/2018 9:09:59 AM by IC-05#Samples: 41 Last Update: 2/1/2018 7:53:53 AM by IC-05


No. Name Type Inj. Vol. Program Method Status1 BLANK,BLANK,1 Unknown 1000.0 Anions Default EPA 9056_180126 Finished

2 Std - 0 Standard 1000.0 Anions Default EPA 9056_180126 Finished






8 BLANK,BLANK,1 Unknown 1000.0 Anions Default EPA 9056_180126 Finished

9 CCV-1,CCV,1 Unknown 1000.0 Anions Default EPA 9056_180126 Finished

10 CCB-1,CCB,1 Unknown 1000.0 Anions Default EPA 9056_180126 Finished

11 MB-H2O,MBLK,1 Unknown 1000.0 Anions Default EPA 9056_180126 Finished

12 LCS-H2O,LCS,1 Unknown 1000.0 Anions Default EPA 9056_180126 Finished


14 N028224-002A,SAMP,5 Unknown 1000.0 Anions Default EPA 9056_180126 Finished










24 N028226-006B,SAMP,20 Unknown 1000.0 Anions Default EPA 9056_180126 Finished

25 N028224-002ADUP,DUP,5 Unknown 1000.0 Anions Default EPA 9056_180126 Finished

26 N028225-001AMS,MS,5 Unknown 1000.0 Anions Default EPA 9056_180126 Finished

27 N028225-001AMSD,MSD,5 Unknown 1000.0 Anions Default EPA 9056_180126 Finished






33 N028296-001A,SAMP,5 Unknown 1000.0 Anions Default2 EPA 9056_180126 Finished



36 N028296-001ADUP,DUP,5 Unknown 1000.0 Anions Default2 EPA 9056_180126 Finished

37 N028296-001AMS,MS,5 Unknown 1000.0 Anions Default2 EPA 9056_180126 Finished

38 N028296-001AMSD,MSD,5 Unknown 1000.0 Anions Default2 EPA 9056_180126 Finished




RBA / IC-05 (Perchlorate) 2/6/2018 2:37:55 PM 31





2 Std - 0 1/26/2018 3:36:59 PM IBLANK

3 Std - 1 1/26/2018 3:52:16 PM STD-LOW

4 Std - 2 1/26/2018 4:10:28 PM STD

5 Std - 3 1/26/2018 4:25:46 PM STD

6 Std - 4 1/26/2018 4:41:04 PM STD

7 Std - 5 1/26/2018 4:56:22 PM STD-HIGH

8 BLANK,BLANK,1 1/29/2018 9:11:05 AM BLANK

9 CCV-1,CCV,1 1/29/2018 9:26:22 AM CCV

10 CCB-1,CCB,1 1/29/2018 9:41:40 AM CCB

11 MB-H2O,MBLK,1 1/29/2018 9:56:58 AM METHOD BLANK

12 LCS-H2O,LCS,1 1/29/2018 10:12:16 AM LCS


14 N028224-002A,SAMP,5 1/29/2018 11:10:13 AM SAMP,2>10mL

15 N028224-003A,SAMP,1 1/29/2018 11:25:31 AM SAMP,10mL

16 N028225-001A,SAMP,5 1/29/2018 11:40:49 AM SAMP,2>10mL

17 N028225-002A,SAMP,5 1/29/2018 11:56:07 AM SAMP,2>10mL

18 N028225-003A,SAMP,5 1/29/2018 12:11:25 PM SAMP,2>10mL

19 N028226-003A,SAMP,20 1/29/2018 12:26:43 PM SAMP,0.5>10mL

20 N028226-004A,SAMP,20 1/29/2018 12:42:00 PM SAMP,0.5>10mL

21 CCV-2,CCV,1 1/29/2018 1:07:17 PM CCV

22 CCB-2,CCB,1 1/29/2018 1:30:25 PM CCB

23 N028226-005A,SAMP,20 1/29/2018 2:02:08 PM SAMP,0.5>10mL

24 N028226-006B,SAMP,20 1/29/2018 2:17:26 PM SAMP,0.5>10mL

25 N028224-002ADUP,DUP,5 1/29/2018 2:32:44 PM DUP,2>10mL

26 N028225-001AMS,MS,5 1/29/2018 2:48:02 PM MS,2>10mL

27 N028225-001AMSD,MSD,5 1/29/2018 3:03:20 PM MSD,2>10mL

28 N028226-003AMS,MS,20 1/29/2018 3:18:38 PM MS,0.5>10mL

29 N028226-003AMSD,MSD,20 1/29/2018 3:33:55 PM MSD,0.5>10mL

30 N028226-004ADUP,DUP,20 1/29/2018 3:49:14 PM DUP,0.5>10mL

31 CCV-3,CCV,1 1/29/2018 4:04:31 PM CCV

32 CCB-3,CCB,1 1/29/2018 4:19:49 PM CCB

33 N028296-001A,SAMP,5 1/29/2018 4:35:08 PM SAMP,2>10mL

34 N028296-002A,SAMP,5 1/29/2018 4:57:26 PM SAMP,2>10mL

35 N028296-003A,SAMP,5 1/29/2018 5:19:44 PM SAMP,2>10mL


37 N028296-001AMS,MS,5 1/29/2018 6:04:20 PM MS,2>10mL


39 BLANK,BLANK,1 1/29/2018 6:48:56 PM BLANK

40 CCV-4,CCV,1 1/29/2018 7:04:14 PM CCV

41 CCB-4,CCB,1 1/29/2018 7:19:32 PM CCB



P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

INITIAL CALIBRATION DATA SUMMARY

33

Instrument ID: IC-08Date Calibrated: 1/26/2018

Initial Calibration:

Fluoride STD0 STD1 STD2 STD3 STD4 STD5COMPOUND, in ug/L 0 0.05 0.25 0.5 1.25 2.5 R²

Area,mAU*min 0.0000 0.0057 0.0433 0.0882 0.2338 0.4886 0.999

StockStandard Concentration: 1000000 PPB

Standard ID: ISST-170814A

(EPA 9056) - INITIAL CALIBRATION

Calibration Acceptance Criteria: > 0.995 Correlation

* Please note that the instrument printout for Area were represented in three decimal places. The exact values are represented inthe ICAL summary for calculation purposes.

IC8 RBA 2/5/2018 5:04 PM 34


P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

INITIAL CALIBRATION AND CONTINUING CALIBRATION VERIFICATION SUMMARY

35





Sample ID ICV


Prep Date:


Units: mg/L

PQL

Client ID: ICV

RunNo: 121718

SeqNo: 2921372

ICVSampType: TestCode: 9056_W_F_N

Fluoride 1.250 103 90 1100.100 01.282

Sample ID CCV-1


Prep Date:


Units: mg/L

PQL

Client ID: CCV

RunNo: 121718

SeqNo: 2921374

CCVSampType: TestCode: 9056_W_F_N

Fluoride 1.250 103 90 1100.100 01.292

Sample ID CCV-2


Prep Date:


Units: mg/L

PQL

Client ID: CCV

RunNo: 121718

SeqNo: 2921383


Fluoride 1.250 105 90 1100.100 01.313

Sample ID CCV-3


Prep Date:


Units: mg/L

PQL

Client ID: CCV

RunNo: 121718

SeqNo: 2921388


Fluoride 1.250 106 90 1100.100 01.328

Sample ID CCV-4


Prep Date:


Units: mg/L

PQL

Client ID: CCV

RunNo: 121718

SeqNo: 2921390


Fluoride 1.250 105 90 1100.100 01.314



36


P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

SUMMARY OF INSTRUMENT BLANKS

37





Sample ID ICB


Prep Date:


Units: mg/L

PQL

Client ID: ICB

RunNo: 121718

SeqNo: 2921373

ICBSampType: TestCode: 9056_W_F_N

Fluoride 0.100ND

Sample ID CCB-1


Prep Date:


Units: mg/L

PQL

Client ID: CCB

RunNo: 121718

SeqNo: 2921375

CCBSampType: TestCode: 9056_W_F_N

Fluoride 0.100ND

Sample ID CCB-2


Prep Date:


Units: mg/L

PQL

Client ID: CCB

RunNo: 121718

SeqNo: 2921384


Fluoride 0.100ND

Sample ID CCB-3


Prep Date:


Units: mg/L

PQL

Client ID: CCB

RunNo: 121718

SeqNo: 2921389


Fluoride 0.100ND

Sample ID CCB-4


Prep Date:


Units: mg/L

PQL

Client ID: CCB

RunNo: 121718

SeqNo: 2921391


Fluoride 0.100ND



38


P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

RETENTION TIME SUMMARY

39

Instrument ID: IC-08

Analytical Sequence

Date Analyzed: 1/29/2018

Sample Name Evaluation

ICV Fluoride 3.137CCV-1 Fluoride 3.157CCV-2 Fluoride 3.150CCV-3 Fluoride 3.147CCV-4 Fluoride 3.140

3.1492.949 - 3.349

LCS-R121718_F Fluoride 3.157 PASSMB-R121718_F Fluoride N.A. N.A.N028224-002A Fluoride 3.144 PASSN028224-003A Fluoride N.A. N.A.N028224-002ADUP Fluoride 3.140 PASSN028225-001AMS Fluoride 3.147 PASSN028225-001AMSD Fluoride 3.147 PASS

RETENTION TIME (RT) SUMMARY

Retention Time

AverageApplied RT Window

IC8 RBA 2/5/2018 5:08 PM 40


P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

MDL STUDY

41

NEVADA3151 W. Post Rd., Las Vegas, NV 89118

P: 702.307.2659 F: 702.307.2691

CALIFORNIA11060 Artesia Blvd., Ste C, Cerritos, CA 90703

P: 562.219.7435 F: 562.219.7436

Method Name: INORGANIC IONS by Ion Chromatography Matrix: WATERMethod Number: EPA 300.0 Unit: mg/LAnalysis Date(s):Analyst/Technician: Ria Abes

Instrument Name: IC-08 Acceptance Criteria: MDL < spike < 10XMDL

Datafile 170523A D36 170523A D37 170523A D38 170524A D17 170524A D18 170525A D45 170525A D46

Analyte #1 #2 #3 #4 #5 #6 #7 Spike Conc.,mg/L SD MDL LOD PQL

Fluoride 0.020 0.022 0.021 0.020 0.023 0.026 0.024 0.020 0.0021 0.0065 0.020 0.10Chloride 0.133 0.136 0.136 0.133 0.141 0.133 0.136 0.025 0.0029 0.0091 0.020 0.50Nitrite 0.030 0.028 0.027 0.028 0.028 0.027 0.027 0.020 0.0010 0.0030 0.010 0.05Bromide 0.037 0.042 0.043 0.038 0.040 0.032 0.025 0.040 0.0062 0.0196 0.040 0.20Nitrate 0.035 0.034 0.033 0.033 0.033 0.031 0.030 0.020 0.0016 0.0050 0.010 0.05Phosphate 0.047 0.051 0.049 0.046 0.052 0.047 0.059 0.040 0.0043 0.0135 0.030 0.10Sulfate 0.213 0.199 0.208 0.216 0.199 0.201 0.198 0.050 0.0073 0.0229 0.050 0.50

METHOD DETECTION LIMIT 2017

5/23/2017 ; 5/24/2017; 5/25/2017

42


P: 702.307.2659 F: 702.307.2691

CALIFORNIA11060 Artesia Blvd., Ste C, Cerritos, CA 90703

P: 562.219.7435 F: 562.219.7436

Method Name: Inorganic Ions by Ion Chromatography (Low Level) Matrix: WATERMethod Number: EPA Method 300.0 Unit: mg/LAnalysis Date(s):Analyst: Ria Abes

Instrument Name: IC-08

Compound MDL LOD SpikeConc., mg/L

LOD ActualConc., mg/L

PQL SpikeConc., mg/L

PQL ActualConc., mg/L %Recovery

Fluoride 0.0065 0.020 0.024 0.10 0.0906 91

Chloride 0.0091 0.020 0.130 0.50 0.5635 113

Nitrite 0.0030 0.010 0.023 0.05 0.0581 116

Bromide 0.0196 0.040 0.048 0.20 0.194 97

Nitrate 0.0050 0.010 0.023 0.05 0.0599 120

Phosphate 0.0135 0.030 0.043 0.10 0.1111 111

Sulfate 0.0229 0.050 0.195 0.50 0.6178 124

MDL/LOD & PQL Verification 2017

5/26/2017

43


P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

RAW DATA

44


P: 702.307.2659 F: 702.307.2691

CALIFORNIA11110 Artesia Blvd., Ste B, Cerritos, CA 90703

P: 562.219.7435 F: 562.219.7436

INITIAL CALIBRATION

45




No. Name Type Inj. Vol. Program Method Status1 BLANK,BLANK,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished







8 ICV,ICV,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished

9 ICB,ICB,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished

10 MB-H2O,MBLK,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished

11 LCS-H2O,LCS,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished




15 N028236-003A,SAMP,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished




19 N028236-002CDUP,DUP,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished



22 N028236-002CMS,MS,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished

23 N028236-002CMSD,MSD,1 Unknown 1000.0 Anions Default EPA 300_0_180126 Finished



IC8 RBA 1/29/2018 4:14 PM 46





2 Std - 0 1/26/2018 3:36:59 PM IBLANK

3 Std - 1 1/26/2018 3:52:16 PM STD-LOW

4 Std - 2 1/26/2018 4:10:28 PM STD

5 Std - 3 1/26/2018 4:25:46 PM STD

6 Std - 4 1/26/2018 4:41:04 PM STD

7 Std - 5 1/26/2018 4:56:22 PM STD-HIGH

8 ICV,ICV,1 1/26/2018 5:26:58 PM BLANK

9 ICB,ICB,1 1/26/2018 5:42:16 PM CCV

10 MB-H2O,MBLK,1 1/26/2018 5:57:34 PM METHOD BLANK

11 LCS-H2O,LCS,1 1/26/2018 6:12:52 PM LCS

12 N028236-005C,SAMP,5 1/26/2018 6:28:10 PM SAMP,2>10mL

13 N028236-001C,SAMP,1 1/26/2018 6:43:28 PM SAMP,10mL

14 N028236-002C,SAMP,1 1/26/2018 6:58:47 PM SAMP,10mL

15 N028236-003A,SAMP,1 1/26/2018 7:14:05 PM SAMP,10mL

16 N028236-004C,SAMP,5 1/26/2018 7:29:23 PM SAMP,2>10mL

17 N028236-004C,SAMP,20 1/26/2018 7:44:41 PM SAMP,0.5>10mL

18 N028236-001C,SAMP,2 1/26/2018 7:59:59 PM SAMP,5>10mL

19 N028236-002CDUP,DUP,1 1/26/2018 8:15:17 PM DUP,10mL

20 CCV-1,CCV,1 1/26/2018 8:30:35 PM CCV

21 CCB-1,CCB,1 1/26/2018 8:45:53 PM CCV

22 N028236-002CMS,MS,1 1/26/2018 9:01:11 PM MS,10mL

23 N028236-002CMSD,MSD,1 1/26/2018 9:16:28 PM MSD,10mL

24 CCV-2,CCV,1 1/26/2018 9:31:46 PM CCV

25 CCB-2,CCB,1 1/26/2018 9:47:04 PM CCB

IC8 RBA 1/29/2018 4:14 PM 47

Operator:IC-05 Timebase:IC-08_ANIONS Sequence:IC-08_180126C Page 1-261/28/2018 11:59 PM

default/IntegrationChromeleon (c) Dionex 1996-2006

Version 6.80 SR10 Build 2818 (166959)

1 BLANK,BLANK,1

BLANK

Sample Name: BLANK,BLANK,1 Injection Volume: 1000.0Vial Number: 3 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/26/2018 15:21 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000

No. Ret.Time Peak Name Height Area Rel.Area Amount Typemin µS µS*min % mg/L

1 2.48 n.a. 0.174 0.059 100.00 n.a. BMBTotal: 0.174 0.059 100.00 0.000

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.80

-0.60

-0.40

-0.20

-0.00

0.20

0.40 IC-08_180126C #1 BLANK,BLANK,1 ECD_1µS

min

1 - 2.477

IC8 RBA 1/29/2018 4:16 PM 48



Version 6.80 SR10 Build 2818 (166959)

2 Std - 0

IBLANK

Sample Name: Std - 0 Injection Volume: 1000.0Vial Number: 4 Channel: ECD_1Sample Type: standard Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/26/2018 15:36 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000


1 2.47 n.a. 0.090 0.028 100.00 n.a. BMBTotal: 0.090 0.028 100.00 0.000

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.80

-0.60

-0.40

-0.20

-0.00

0.20

0.40 IC-08_180126C #2 Std - 0 ECD_1µS

min

1 - 2.473

IC8 RBA 1/29/2018 4:16 PM 49



Version 6.80 SR10 Build 2818 (166959)

3 Std - 1

STD-LOW



1 2.48 n.a. 0.130 0.042 20.43 n.a. BMb2 3.14 Fluoride 0.026 0.006 2.78 0.068 bMB3 4.28 Chloride 0.398 0.075 36.79 0.593 BMB4 5.03 Nitrite 0.073 0.015 7.40 0.064 BMB5 5.88 Bromide 0.012 0.002 1.11 0.058 BMB6 6.57 Nitrate 0.075 0.017 8.33 0.065 BMB7 10.33 Sulfate 0.146 0.047 23.15 0.690 BMB

Total: 0.859 0.205 100.00 1.536

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.050

0.000

0.050

0.100

0.150

0.200

0.250

0.300

0.350

0.400

0.450 IC-08_180126C #3 Std - 1 ECD_1µS

min

1 - 2.480

2 - Fluoride - 3.140

3 - Chloride - 4.277

4 - Nitrite - 5.034

5 - Bromide - 5.884

6 - Nitrate - 6.567

7 - Sulfate - 10.330

IC8 RBA 1/29/2018 4:14 PM 50



Version 6.80 SR10 Build 2818 (166959)

3 Std - 1

STD-LOW



1 3.14 Fluoride 0.026 0.006 3.37 0.067 BMB*2 4.28 Chloride 0.398 0.075 44.97 0.593 BMB3 5.03 Nitrite 0.073 0.015 9.05 0.064 BMB4 5.88 Bromide 0.015 0.004 2.09 0.070 BMB*5 6.57 Nitrate 0.075 0.017 10.19 0.065 BMB6 9.04 o-Phosphate 0.012 0.003 2.05 0.087 BMB*7 10.33 Sulfate 0.146 0.047 28.29 0.690 BMB

Total: 0.743 0.168 100.00 1.636

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.050

0.000

0.050

0.100

0.150

0.200

0.250

0.300

0.350

0.400

0.450 IC-08_180126C #3 [modified by IC-05] Std - 1 ECD_1µS

min



3 - Nitrite - 5.034

4 - Bromide - 5.884

5 - Nitrate - 6.567

6 - o-Phosphate - 9.040

7 - Sulfate - 10.330

IC8 RBA 1/29/2018 4:14 PM 51



Version 6.80 SR10 Build 2818 (166959)

4 Std - 2

STD



1 2.48 n.a. 0.144 0.046 7.05 n.a. BMB2 3.15 Fluoride 0.149 0.043 6.68 0.258 bMB3 4.27 Chloride 0.787 0.146 22.53 1.027 BMB4 5.04 Nitrite 0.366 0.077 11.95 0.257 BMB5 5.87 Bromide 0.072 0.015 2.25 0.248 BMB6 6.57 Nitrate 0.378 0.092 14.15 0.256 BMB7 7.89 n.a. 0.012 0.003 0.51 n.a. BMB8 9.08 o-Phosphate 0.050 0.016 2.52 0.213 BMB9 10.32 Sulfate 0.627 0.210 32.34 2.036 BMB

Total: 2.585 0.648 100.00 4.297

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.10

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90 IC-08_180126C #4 Std - 2 ECD_1µS

min

1 - 2.4802 - Fluoride - 3.147


4 - Nitrite - 5.037

5 - Bromide - 5.870

6 - Nitrate - 6.567

7 - 7.890


9 - Sulfate - 10.323

IC8 RBA 1/29/2018 4:14 PM 52



Version 6.80 SR10 Build 2818 (166959)

4 Std - 2

STD



1 3.15 Fluoride 0.149 0.043 7.16 0.258 BMB*2 4.27 Chloride 0.787 0.146 24.14 1.027 BMB3 5.04 Nitrite 0.366 0.077 12.80 0.257 BMB4 5.87 Bromide 0.072 0.015 2.41 0.248 BMB5 6.57 Nitrate 0.378 0.092 15.17 0.256 BMB6 9.08 o-Phosphate 0.056 0.022 3.66 0.247 BMB*7 10.32 Sulfate 0.627 0.210 34.66 2.036 BMB

Total: 2.435 0.605 100.00 4.331

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.10

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80


min



3 - Nitrite - 5.037

4 - Bromide - 5.870

5 - Nitrate - 6.567


7 - Sulfate - 10.323

IC8 RBA 1/29/2018 4:14 PM 53



Version 6.80 SR10 Build 2818 (166959)

5 Std - 3

STD



1 2.48 n.a. 0.126 0.040 3.10 n.a. BMB2 3.14 Fluoride 0.298 0.088 6.92 0.486 BMB3 4.27 Chloride 1.604 0.295 23.14 1.944 BMB4 5.04 Nitrite 0.733 0.154 12.04 0.493 BMB5 5.86 Bromide 0.143 0.030 2.34 0.493 BMB6 6.57 Nitrate 0.768 0.183 14.36 0.491 BMB7 7.95 n.a. 0.008 0.002 0.14 n.a. BMB8 9.06 o-Phosphate 0.130 0.050 3.92 0.485 BMB9 10.33 Sulfate 1.293 0.434 34.03 3.897 BMB

Total: 5.103 1.275 100.00 8.288

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.20

-0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

1.60

1.80 IC-08_180126C #5 Std - 3 ECD_1µS

min

1 - 2.477



4 - Nitrite - 5.037

5 - Bromide - 5.864

6 - Nitrate - 6.567

7 - 7.947


9 - Sulfate - 10.327

IC8 RBA 1/29/2018 4:14 PM 54



Version 6.80 SR10 Build 2818 (166959)

5 Std - 3

STD



1 3.14 Fluoride 0.298 0.088 7.15 0.486 BMB2 4.27 Chloride 1.604 0.295 23.92 1.944 BMB3 5.04 Nitrite 0.733 0.154 12.45 0.493 BMB4 5.86 Bromide 0.143 0.030 2.42 0.493 BMB5 6.57 Nitrate 0.768 0.183 14.84 0.491 BMB6 9.06 o-Phosphate 0.130 0.050 4.05 0.485 BMB7 10.33 Sulfate 1.293 0.434 35.17 3.897 BMB

Total: 4.969 1.234 100.00 8.288

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.20

-0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

1.60


min



3 - Nitrite - 5.037

4 - Bromide - 5.864

5 - Nitrate - 6.567


7 - Sulfate - 10.327

IC8 RBA 1/29/2018 4:14 PM 55



Version 6.80 SR10 Build 2818 (166959)

6 Std - 4

STD



1 2.48 n.a. 0.087 0.028 0.86 n.a. BMB2 3.15 Fluoride 0.791 0.234 7.23 1.224 BMB3 4.28 Chloride 4.253 0.770 23.80 4.865 BMB4 5.04 Nitrite 1.866 0.388 12.00 1.221 BMB5 5.87 Bromide 0.359 0.075 2.33 1.226 BMB6 6.56 Nitrate 1.969 0.469 14.49 1.224 BMB7 9.05 o-Phosphate 0.361 0.134 4.15 1.205 BMB8 10.33 Sulfate 3.366 1.137 35.14 9.730 BMB

Total: 13.052 3.235 100.00 20.694

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

0.00

1.00

2.00

3.00

4.00

5.00 IC-08_180126C #6 Std - 4 ECD_1µS

min

1 - 2.477



4 - Nitrite - 5.037

5 - Bromide - 5.867

6 - Nitrate - 6.564


8 - Sulfate - 10.330

IC8 RBA 1/29/2018 4:14 PM 56



Version 6.80 SR10 Build 2818 (166959)

6 Std - 4

STD



1 3.15 Fluoride 0.791 0.234 7.29 1.224 BMB2 4.28 Chloride 4.253 0.770 24.01 4.865 BMB3 5.04 Nitrite 1.866 0.388 12.10 1.221 BMB4 5.87 Bromide 0.359 0.075 2.35 1.226 BMB5 6.56 Nitrate 1.969 0.469 14.62 1.224 BMB6 9.05 o-Phosphate 0.361 0.134 4.19 1.205 BMB7 10.33 Sulfate 3.366 1.137 35.44 9.730 BMB

Total: 12.965 3.207 100.00 20.694

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

0.00

1.00

2.00

3.00

4.00


min



3 - Nitrite - 5.037

4 - Bromide - 5.867

5 - Nitrate - 6.564


7 - Sulfate - 10.330

IC8 RBA 1/29/2018 4:14 PM 57



Version 6.80 SR10 Build 2818 (166959)

7 Std - 5

STD-HIGH



1 2.48 n.a. 0.147 0.045 0.67 n.a. BMB2 3.15 Fluoride 1.683 0.489 7.22 2.515 BMB3 4.28 Chloride 9.108 1.616 23.89 10.072 BMB4 5.04 Nitrite 3.868 0.805 11.91 2.515 BMB5 5.87 Bromide 0.743 0.155 2.30 2.513 BMB6 6.56 Nitrate 4.128 0.971 14.35 2.514 BMB7 7.40 n.a. 0.000 0.002 0.03 n.a. BMB8 9.04 o-Phosphate 0.808 0.289 4.27 2.525 BMb9 10.34 Sulfate 7.189 2.392 35.36 20.147 bMB

Total: 27.673 6.765 100.00 42.801

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-1.0

0.0

1.3

2.5

3.8

5.0

6.3

7.5

8.8

10.0 IC-08_180126C #7 Std - 5 ECD_1µS

min

1 - 2.480



4 - Nitrite - 5.040

5 - Bromide - 5.867

6 - Nitrate - 6.560

7 - 7.404


9 - Sulfate - 10.337

IC8 RBA 1/29/2018 4:14 PM 58



Version 6.80 SR10 Build 2818 (166959)

7 Std - 5

STD-HIGH



1 3.15 Fluoride 1.683 0.489 7.27 2.515 BMB2 4.28 Chloride 9.108 1.616 24.06 10.072 BMB3 5.04 Nitrite 3.868 0.805 11.99 2.515 BMB4 5.87 Bromide 0.743 0.155 2.31 2.513 BMB5 6.56 Nitrate 4.128 0.971 14.46 2.514 BMB6 9.04 o-Phosphate 0.808 0.289 4.30 2.525 BMb7 10.34 Sulfate 7.189 2.392 35.61 20.147 bMB

Total: 27.526 6.717 100.00 42.801

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-1.0

0.0

1.3

2.5

3.8

5.0

6.3

7.5

8.8


min



3 - Nitrite - 5.040

4 - Bromide - 5.867

5 - Nitrate - 6.560


7 - Sulfate - 10.337

IC8 RBA 1/29/2018 4:14 PM 59


default/Calibration(Batch)Chromeleon (c) Dionex 1996-2006

Version 6.80 SR10 Build 2818 (166959)

7 Std - 5

STD-HIGH


No. Ret.Time Peak Name Cal.Type Points Coeff.Det. Offset Slope Curvemin %

1 3.15 Fluoride LOff 5 99.9627 -0.0076 0.1973 0.00002 4.28 Chloride LOff 5 99.9419 -0.0209 0.1626 0.00003 5.04 Nitrite LOff 5 99.9656 -0.0054 0.3224 0.00004 5.87 Bromide LOff 5 99.9695 -0.0008 0.0622 0.00005 6.56 Nitrate LOff 5 99.9702 -0.0081 0.3895 0.00006 9.04 o-Phosphate LOff 5 99.8943 -0.0068 0.1171 0.00007 10.34 Sulfate LOff 5 99.9438 -0.0356 0.1205 0.0000

Average: 99.9497 -0.0122 0.1959 0.0000

0.000

0.200

0.400

0.550

0.00 1.00 2.00 3.00

Fluoride External ECD_1Area [µS*min]

mg/L 0.000

0.200

0.400

0.550

0.00 1.00 2.00 3.00


mg/L

0.000

0.200

0.400

0.550

0.00 1.00 2.00 3.00


mg/L 0.000

0.200

0.400

0.550

0.00 1.00 2.00 3.00


mg/L

IC8 RBA 1/29/2018 4:16 PM 60



Version 6.80 SR10 Build 2818 (166959)

8 ICV,ICV,1

BLANK

Sample Name: ICV,ICV,1 Injection Volume: 1000.0Vial Number: 10 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/26/2018 17:26 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000


1 2.47 n.a. 0.091 0.028 1.28 n.a. BMB2 3.14 Fluoride 0.842 0.245 11.33 1.282 BMB3 4.26 Chloride 1.703 0.311 14.35 2.040 bMB4 5.02 Nitrite 2.018 0.423 19.56 1.330 BMB5 5.84 Bromide 0.368 0.076 3.52 1.240 BMB6 6.53 Nitrate 2.060 0.488 22.52 1.273 BMB7 7.94 n.a. 0.016 0.005 0.22 n.a. BMB8 8.94 o-Phosphate 0.386 0.136 6.29 1.222 BMB9 10.21 Sulfate 1.355 0.453 20.92 4.056 BMB

Total: 8.840 2.165 100.00 12.442

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.50

-0.00

0.50

1.00

1.50

2.00

2.50 IC-08_180126C #8 ICV,ICV,1 ECD_1µS

min

1 - 2.474



4 - Nitrite - 5.020

5 - Bromide - 5.844

6 - Nitrate - 6.534

7 - 7.940


9 - Sulfate - 10.214

IC8 RBA 1/29/2018 4:16 PM 61



Version 6.80 SR10 Build 2818 (166959)

9 ICB,ICB,1

CCV

Sample Name: ICB,ICB,1 Injection Volume: 1000.0Vial Number: 11 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/26/2018 17:42 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000


1 2.48 n.a. 0.082 0.026 100.00 n.a. BMBTotal: 0.082 0.026 100.00 0.000

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.80

-0.60

-0.40

-0.20

-0.00

0.20 IC-08_180126C #9 ICB,ICB,1 ECD_1µS

min

1 - 2.477

IC8 RBA 1/29/2018 4:16 PM 62


P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

RAW DATA

63




No. Name Type Inj. Vol. Program Method Status1 BLANK,BLANK,1 Unknown 1000.0 Anions Default EPA 9056_180126 Finished











12 LCS-H2O,LCS,1 Unknown 1000.0 Anions Default EPA 9056_180126 Finished












24 N028226-006B,SAMP,20 Unknown 1000.0 Anions Default EPA 9056_180126 Finished












36 N028296-001ADUP,DUP,5 Unknown 1000.0 Anions Default2 EPA 9056_180126 Finished

37 N028296-001AMS,MS,5 Unknown 1000.0 Anions Default2 EPA 9056_180126 Finished

38 N028296-001AMSD,MSD,5 Unknown 1000.0 Anions Default2 EPA 9056_180126 Finished









2 Std - 0 1/26/2018 3:36:59 PM IBLANK

3 Std - 1 1/26/2018 3:52:16 PM STD-LOW

4 Std - 2 1/26/2018 4:10:28 PM STD

5 Std - 3 1/26/2018 4:25:46 PM STD

6 Std - 4 1/26/2018 4:41:04 PM STD

7 Std - 5 1/26/2018 4:56:22 PM STD-HIGH

8 BLANK,BLANK,1 1/29/2018 9:11:05 AM BLANK

9 CCV-1,CCV,1 1/29/2018 9:26:22 AM CCV

10 CCB-1,CCB,1 1/29/2018 9:41:40 AM CCB


12 LCS-H2O,LCS,1 1/29/2018 10:12:16 AM LCS


14 N028224-002A,SAMP,5 1/29/2018 11:10:13 AM SAMP,2>10mL

15 N028224-003A,SAMP,1 1/29/2018 11:25:31 AM SAMP,10mL

16 N028225-001A,SAMP,5 1/29/2018 11:40:49 AM SAMP,2>10mL

17 N028225-002A,SAMP,5 1/29/2018 11:56:07 AM SAMP,2>10mL

18 N028225-003A,SAMP,5 1/29/2018 12:11:25 PM SAMP,2>10mL

19 N028226-003A,SAMP,20 1/29/2018 12:26:43 PM SAMP,0.5>10mL

20 N028226-004A,SAMP,20 1/29/2018 12:42:00 PM SAMP,0.5>10mL

21 CCV-2,CCV,1 1/29/2018 1:07:17 PM CCV

22 CCB-2,CCB,1 1/29/2018 1:30:25 PM CCB

23 N028226-005A,SAMP,20 1/29/2018 2:02:08 PM SAMP,0.5>10mL

24 N028226-006B,SAMP,20 1/29/2018 2:17:26 PM SAMP,0.5>10mL


26 N028225-001AMS,MS,5 1/29/2018 2:48:02 PM MS,2>10mL


28 N028226-003AMS,MS,20 1/29/2018 3:18:38 PM MS,0.5>10mL

29 N028226-003AMSD,MSD,20 1/29/2018 3:33:55 PM MSD,0.5>10mL

30 N028226-004ADUP,DUP,20 1/29/2018 3:49:14 PM DUP,0.5>10mL

31 CCV-3,CCV,1 1/29/2018 4:04:31 PM CCV

32 CCB-3,CCB,1 1/29/2018 4:19:49 PM CCB

33 N028296-001A,SAMP,5 1/29/2018 4:35:08 PM SAMP,2>10mL

34 N028296-002A,SAMP,5 1/29/2018 4:57:26 PM SAMP,2>10mL

35 N028296-003A,SAMP,5 1/29/2018 5:19:44 PM SAMP,2>10mL


37 N028296-001AMS,MS,5 1/29/2018 6:04:20 PM MS,2>10mL


39 BLANK,BLANK,1 1/29/2018 6:48:56 PM BLANK

40 CCV-4,CCV,1 1/29/2018 7:04:14 PM CCV

41 CCB-4,CCB,1 1/29/2018 7:19:32 PM CCB


Operator:IC-05 Timebase:IC-08_ANIONS Sequence:IC-08_180129A Page 9-461/30/2018 12:08 AM


Version 6.80 SR10 Build 2818 (166959)

8 BLANK,BLANK,1

BLANK



Total: 0.000 0.000 0.00 0.000

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.88

-0.75

-0.62

-0.50

-0.37

-0.25

-0.12

0.01 IC-08_180129A #8 BLANK,BLANK,1 ECD_1µS

min

IC8 RBA 1/30/2018 4:54 PM 66



Version 6.80 SR10 Build 2818 (166959)

9 CCV-1,CCV,1

CCV

Sample Name: CCV-1,CCV,1 Injection Volume: 1000.0Vial Number: 10 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 9:26 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000



Total: 9.149 2.109 100.00 12.278

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.50

-0.00

0.50

1.00

1.50

2.00

2.50 IC-08_180129A #9 CCV-1,CCV,1 ECD_1µS

min

1 - 2.483



4 - Nitrite - 5.033

5 - Bromide - 5.853

6 - Nitrate - 6.543

7 - 7.977


9 - Sulfate - 10.187

IC8 RBA 1/30/2018 4:54 PM 67



Version 6.80 SR10 Build 2818 (166959)

10 CCB-1,CCB,1

CCB

Sample Name: CCB-1,CCB,1 Injection Volume: 1000.0Vial Number: 11 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 9:41 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000


1 2.49 n.a. 0.050 0.015 86.15 n.a. BMB2 10.23 Sulfate 0.010 0.002 13.85 0.316 BMB

Total: 0.060 0.018 100.00 0.316

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.0100

0.0000

0.0100

0.0200

0.0300

0.0400

0.0500

0.0600 IC-08_180129A #10 CCB-1,CCB,1 ECD_1µS

min

1 - 2.494

2 - Sulfate - 10.234

IC8 RBA 1/30/2018 4:54 PM 68



Version 6.80 SR10 Build 2818 (166959)

10 CCB-1,CCB,1

CCB



1 2.49 n.a. 0.050 0.015 100.00 n.a. BMBTotal: 0.050 0.015 100.00 0.000

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.0100

0.0000

0.0100

0.0200

0.0300

0.0400

0.0500

0.0600 IC-08_180129A #10 [modified by IC-05] CCB-1,CCB,1 ECD_1µS

min

1 - 2.494

IC8 RBA 1/30/2018 4:54 PM 69



Version 6.80 SR10 Build 2818 (166959)

11 MB-H2O,MBLK,1

METHOD BLANK

Sample Name: MB-H2O,MBLK,1 Injection Volume: 1000.0Vial Number: 13 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 9:56 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000


1 2.50 n.a. 0.012 0.002 100.00 n.a. BMBTotal: 0.012 0.002 100.00 0.000

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.80

-0.60

-0.40

-0.20

-0.00

0.20 IC-08_180129A #11 MB-H2O,MBLK,1 ECD_1µS

min

1 - 2.497

IC8 RBA 1/30/2018 4:54 PM 70



Version 6.80 SR10 Build 2818 (166959)

12 LCS-H2O,LCS,1

LCS

Sample Name: LCS-H2O,LCS,1 Injection Volume: 1000.0Vial Number: 11 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 10:12 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000


1 2.49 n.a. 0.088 0.025 1.13 n.a. BMB2 3.16 Fluoride 0.897 0.254 11.57 1.325 BMB3 4.28 Chloride 1.845 0.314 14.30 2.057 BMB4 5.03 Nitrite 2.147 0.425 19.36 1.334 BMb5 5.85 Bromide 0.392 0.079 3.60 1.283 bMB6 6.54 Nitrate 2.165 0.487 22.20 1.270 BMB7 7.94 n.a. 0.020 0.006 0.29 n.a. BMB8 8.91 o-Phosphate 0.415 0.146 6.66 1.306 BMB9 10.18 Sulfate 1.355 0.458 20.89 4.098 bMB

Total: 9.324 2.193 100.00 12.674

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.50

-0.00

0.50

1.00

1.50

2.00

2.50 IC-08_180129A #12 LCS-H2O,LCS,1 ECD_1µS

min

1 - 2.487



4 - Nitrite - 5.034

5 - Bromide - 5.854

6 - Nitrate - 6.544

7 - 7.937


9 - Sulfate - 10.180

IC8 RBA 1/30/2018 4:54 PM 71



Version 6.80 SR10 Build 2818 (166959)

13 MB-H2O,MBLK,1

METHOD BLANK

Sample Name: MB-H2O,MBLK,1 Injection Volume: 1000.0Vial Number: 11 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 10:42 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000


1 2.50 n.a. 0.029 0.008 100.00 n.a. BMBTotal: 0.029 0.008 100.00 0.000

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.80

-0.60

-0.40

-0.20

-0.00

0.20 IC-08_180129A #13 MB-H2O,MBLK,1 ECD_1µS

min

1 - 2.503

IC8 RBA 1/30/2018 4:54 PM 72



Version 6.80 SR10 Build 2818 (166959)

14 N028224-002A,SAMP,5

SAMP,2>10mL

Sample Name: N028224-002A,SAMP,5 Injection Volume: 1000.0Vial Number: 12 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 11:10 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000


1 2.49 n.a. 0.882 0.261 0.25 n.a. BMb2 3.14 Fluoride 0.339 0.091 0.09 0.502 bMB3 4.32 Chloride 163.353 27.283 25.63 167.965 BMb4 5.84 Bromide 0.042 0.008 0.01 0.141 bMB5 6.53 Nitrate 0.983 0.229 0.21 0.608 BMb6 7.69 n.a. 0.128 0.037 0.03 n.a. bMB7 8.58 o-Phosphate 0.049 0.053 0.05 0.507 BMB8 10.38 Sulfate 163.215 78.475 73.73 651.600 bMB

Total: 328.989 106.437 100.00 821.323

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00 IC-08_180129A #14 N028224-002A,SAMP,5 ECD_1µS

min

1 - 2.487



4 - Bromide - 5.844

5 - Nitrate - 6.530

6 - 7.6907 - o-Phosphate - 8.580

8 - Sulfate - 10.380

IC8 RBA 1/30/2018 4:54 PM 73



Version 6.80 SR10 Build 2818 (166959)

14 N028224-002A,SAMP,5

SAMP,2>10mL



1 2.49 n.a. 0.901 0.282 0.26 n.a. BM *2 3.14 Fluoride 0.383 0.116 0.11 0.625 MB*3 4.32 Chloride 163.353 27.283 25.62 167.965 BMb4 5.84 Bromide 0.042 0.008 0.01 0.141 bMB5 6.53 Nitrate 0.983 0.229 0.21 0.608 BMb6 7.69 n.a. 0.128 0.037 0.03 n.a. bMB7 8.58 o-Phosphate 0.049 0.053 0.05 0.507 BMb*8 10.38 Sulfate 163.215 78.475 73.70 651.600 bMB

Total: 329.053 106.482 100.00 821.446

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00 IC-08_180129A #14 [modified by IC-05] N028224-002A,SAMP,5 ECD_1µS

min

1 - 2.487



4 - Bromide - 5.844

5 - Nitrate - 6.530

6 - 7.6907 - o-Phosphate - 8.580

8 - Sulfate - 10.380

IC8 RBA 1/30/2018 4:54 PM 74



Version 6.80 SR10 Build 2818 (166959)

15 N028224-003A,SAMP,1

SAMP,10mL



1 2.50 n.a. 0.041 0.014 88.30 n.a. BMB2 4.28 Chloride 0.012 0.002 11.70 0.140 BMB

Total: 0.053 0.016 100.00 0.140

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.80

-0.60

-0.40

-0.20

-0.00

0.20 IC-08_180129A #15 N028224-003A,SAMP,1 ECD_1µS

min

1 - 2.4972 - Chloride - 4.277

IC8 RBA 1/30/2018 4:54 PM 75



Version 6.80 SR10 Build 2818 (166959)

16 N028225-001A,SAMP,5

SAMP,2>10mL



1 2.05 n.a. 0.005 0.001 0.00 n.a. BMB2 2.48 n.a. 0.426 0.123 0.21 n.a. BMb3 3.15 Fluoride 0.372 0.103 0.18 0.561 bMB4 4.29 Chloride 56.101 9.186 15.68 56.635 BMB5 5.85 Bromide 0.018 0.004 0.01 0.070 BMB6 6.54 Nitrate 0.243 0.055 0.09 0.162 BMb7 7.66 n.a. 0.109 0.036 0.06 n.a. bMB8 8.76 o-Phosphate 0.027 0.050 0.08 0.483 BMB9 10.32 Sulfate 117.821 49.026 83.69 407.183 bMB

Total: 175.121 58.583 100.00 465.094

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00 IC-08_180129A #16 N028225-001A,SAMP,5 ECD_1µS

min

1 - 2.053

2 - 2.4833 - Fluoride - 3.147


5 - Bromide - 5.850

6 - Nitrate - 6.537

7 - 7.657 8 - o-Phosphate - 8.760

9 - Sulfate - 10.323

IC8 RBA 1/30/2018 4:54 PM 76



Version 6.80 SR10 Build 2818 (166959)

16 N028225-001A,SAMP,5

SAMP,2>10mL



1 2.05 n.a. 0.005 0.001 0.00 n.a. BMB2 2.48 n.a. 0.435 0.133 0.23 n.a. BM *3 3.15 Fluoride 0.395 0.117 0.20 0.631 MB*4 4.29 Chloride 56.101 9.186 15.67 56.635 BMB5 5.85 Bromide 0.018 0.004 0.01 0.070 BMB6 6.54 Nitrate 0.243 0.055 0.09 0.162 BMb7 7.66 n.a. 0.109 0.036 0.06 n.a. bMB8 8.76 o-Phosphate 0.027 0.050 0.08 0.483 BMb*9 10.32 Sulfate 117.821 49.026 83.65 407.183 bMB

Total: 175.153 58.607 100.00 465.164

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75


min

1 - 2.053

2 - 2.4833 - Fluoride - 3.147


5 - Bromide - 5.850

6 - Nitrate - 6.537

7 - 7.657 8 - o-Phosphate - 8.760

9 - Sulfate - 10.323

IC8 RBA 1/30/2018 4:54 PM 77



Version 6.80 SR10 Build 2818 (166959)

17 N028225-002A,SAMP,5

SAMP,2>10mL



1 2.48 n.a. 0.396 0.114 0.19 n.a. BMb2 3.15 Fluoride 0.339 0.095 0.16 0.523 bMB3 4.29 Chloride 56.553 9.266 15.69 57.131 BMB4 5.85 Bromide 0.018 0.003 0.00 0.058 BMB5 6.54 Nitrate 0.215 0.050 0.09 0.150 BMb6 7.65 n.a. 0.101 0.036 0.06 n.a. bMB7 9.30 n.a. 0.004 0.056 0.10 n.a. BMB8 10.32 Sulfate 118.480 49.451 83.71 410.713 bMB

Total: 176.106 59.072 100.00 468.575

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00 IC-08_180129A #17 N028225-002A,SAMP,5 ECD_1µS

min

1 - 2.4802 - Fluoride - 3.147


4 - Bromide - 5.850

5 - Nitrate - 6.537

6 - 7.647 7 - 9.297

8 - Sulfate - 10.324

IC8 RBA 1/30/2018 4:54 PM 78



Version 6.80 SR10 Build 2818 (166959)

17 N028225-002A,SAMP,5

SAMP,2>10mL



1 2.48 n.a. 0.405 0.125 0.21 n.a. BM *2 3.15 Fluoride 0.362 0.110 0.19 0.595 MB*3 4.29 Chloride 56.553 9.266 15.68 57.131 BMB4 5.85 Bromide 0.018 0.003 0.00 0.058 BMB5 6.54 Nitrate 0.215 0.050 0.09 0.150 BMb6 7.65 n.a. 0.101 0.036 0.06 n.a. bMB7 9.30 n.a. 0.004 0.056 0.10 n.a. BMb*8 10.32 Sulfate 118.480 49.451 83.68 410.713 bMB

Total: 176.139 59.097 100.00 468.647

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75


min

1 - 2.4802 - Fluoride - 3.147


4 - Bromide - 5.850

5 - Nitrate - 6.537

6 - 7.647 7 - 9.297

8 - Sulfate - 10.324

IC8 RBA 1/30/2018 4:54 PM 79



Version 6.80 SR10 Build 2818 (166959)

18 N028225-003A,SAMP,5

SAMP,2>10mL



1 2.48 n.a. 0.396 0.114 0.19 n.a. BMb2 3.15 Fluoride 0.343 0.096 0.16 0.524 bMB3 4.29 Chloride 56.904 9.328 15.69 57.509 BMB4 5.85 Bromide 0.019 0.004 0.01 0.071 BMB5 6.54 Nitrate 0.217 0.049 0.08 0.147 BMb6 7.66 n.a. 0.106 0.037 0.06 n.a. bMB7 8.15 n.a. 0.076 0.048 0.08 n.a. BMB8 10.32 Sulfate 119.166 49.769 83.73 413.355 bMB

Total: 177.228 59.443 100.00 471.606

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00 IC-08_180129A #18 N028225-003A,SAMP,5 ECD_1µS

min

1 - 2.4802 - Fluoride - 3.147


4 - Bromide - 5.850

5 - Nitrate - 6.537

6 - 7.6647 - 8.147

8 - Sulfate - 10.324

IC8 RBA 1/30/2018 4:54 PM 80



Version 6.80 SR10 Build 2818 (166959)

18 N028225-003A,SAMP,5

SAMP,2>10mL



1 2.48 n.a. 0.405 0.122 0.21 n.a. BM *2 3.15 Fluoride 0.362 0.108 0.18 0.584 MB*3 4.29 Chloride 56.904 9.328 15.69 57.509 BMB4 5.85 Bromide 0.019 0.004 0.01 0.071 BMB5 6.54 Nitrate 0.217 0.049 0.08 0.147 BMb6 7.66 n.a. 0.106 0.037 0.06 n.a. bMB7 8.15 n.a. 0.076 0.048 0.08 n.a. BMb*8 10.32 Sulfate 119.166 49.769 83.70 413.355 bMB

Total: 177.256 59.464 100.00 471.666

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75


min

1 - 2.4802 - Fluoride - 3.147


4 - Bromide - 5.850

5 - Nitrate - 6.537

6 - 7.6647 - 8.147

8 - Sulfate - 10.324

IC8 RBA 1/30/2018 4:54 PM 81



Version 6.80 SR10 Build 2818 (166959)

19 N028226-003A,SAMP,20

SAMP,0.5>10mL



1 2.48 n.a. 0.093 0.026 1.40 n.a. BMB2 3.15 Fluoride 0.150 0.042 2.24 0.253 BMB3 4.27 Chloride 4.771 0.841 44.61 5.299 BMB4 6.55 Nitrate 0.023 0.006 0.31 0.036 BMB5 7.91 n.a. 0.029 0.011 0.57 n.a. BMB6 10.17 Sulfate 2.802 0.959 50.88 8.251 BMB

Total: 7.868 1.884 100.00 13.839

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

0.00

1.00

2.00

3.00

4.00

5.50 IC-08_180129A #19 N028226-003A,SAMP,20 ECD_1µS

min

1 - 2.4772 - Fluoride - 3.147


4 - Nitrate - 6.5475 - 7.910

6 - Sulfate - 10.173

IC8 RBA 1/30/2018 4:54 PM 82



Version 6.80 SR10 Build 2818 (166959)

20 N028226-004A,SAMP,20

SAMP,0.5>10mL



1 2.49 n.a. 0.169 0.050 3.39 n.a. BMB2 3.15 Fluoride 0.158 0.043 2.92 0.258 bMB3 4.27 Chloride 4.074 0.726 48.99 4.595 BMB4 6.54 Nitrate 0.027 0.005 0.37 0.035 BMB5 7.87 n.a. 0.025 0.008 0.54 n.a. BMB6 10.17 Sulfate 1.881 0.646 43.58 5.656 BMB7 12.31 n.a. 0.010 0.003 0.21 n.a. BMB

Total: 6.346 1.482 100.00 10.544

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

0.00

1.00

2.00

3.00

4.50 IC-08_180129A #20 N028226-004A,SAMP,20 ECD_1µS

min

1 - 2.4872 - Fluoride - 3.147


4 - Nitrate - 6.5445 - 7.867

6 - Sulfate - 10.167

7 - 12.307

IC8 RBA 1/30/2018 4:54 PM 83



Version 6.80 SR10 Build 2818 (166959)

21 CCV-2,CCV,1

CCV



1 2.50 n.a. 0.053 0.016 0.76 n.a. BMB2 3.15 Fluoride 0.895 0.251 11.78 1.313 BMB3 4.27 Chloride 1.705 0.297 13.93 1.958 BMB4 5.03 Nitrite 2.018 0.408 19.11 1.282 BMB5 5.85 Bromide 0.384 0.078 3.64 1.262 BMB6 6.54 Nitrate 2.065 0.477 22.35 1.246 BMB7 8.89 o-Phosphate 0.433 0.152 7.12 1.357 BMB8 10.16 Sulfate 1.328 0.455 21.32 4.074 bMB

Total: 8.881 2.135 100.00 12.492

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.50

-0.00

0.50

1.00

1.50

2.00

2.50 IC-08_180129A #21 CCV-2,CCV,1 ECD_1µS

min

1 - 2.497



4 - Nitrite - 5.027

5 - Bromide - 5.847

6 - Nitrate - 6.537


8 - Sulfate - 10.164

IC8 RBA 1/30/2018 4:54 PM 84



Version 6.80 SR10 Build 2818 (166959)

22 CCB-2,CCB,1

CCB



1 2.52 n.a. 0.030 0.011 100.00 n.a. BMBTotal: 0.030 0.011 100.00 0.000

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.80

-0.60

-0.40

-0.20

-0.00

0.20 IC-08_180129A #22 CCB-2,CCB,1 ECD_1µS

min

1 - 2.523

IC8 RBA 1/30/2018 4:54 PM 85



Version 6.80 SR10 Build 2818 (166959)

23 N028226-005A,SAMP,20

SAMP,0.5>10mL



1 2.49 n.a. 0.143 0.043 2.02 n.a. BMb2 3.15 Fluoride 0.138 0.038 1.79 0.232 bMB3 4.27 Chloride 6.196 1.095 51.32 6.867 BMB4 5.86 Bromide 0.009 0.002 0.10 0.047 BMB5 6.55 Nitrate 0.028 0.006 0.30 0.037 BMB6 7.94 n.a. 0.024 0.008 0.38 n.a. BMB7 10.16 Sulfate 2.729 0.941 44.10 8.109 BMB

Total: 9.267 2.135 100.00 15.293

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00 IC-08_180129A #23 N028226-005A,SAMP,20 ECD_1µS

min

1 - 2.4872 - Fluoride - 3.147


4 - Bromide - 5.8605 - Nitrate - 6.5476 - 7.937

7 - Sulfate - 10.160

IC8 RBA 1/30/2018 4:54 PM 86



Version 6.80 SR10 Build 2818 (166959)

24 N028226-006B,SAMP,20

SAMP,0.5>10mL

Sample Name: N028226-006B,SAMP,20 Injection Volume: 1000.0Vial Number: 17 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 14:17 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000


1 2.49 n.a. 0.154 0.047 2.47 n.a. BMB2 3.15 Fluoride 0.150 0.042 2.20 0.249 BMB3 4.27 Chloride 4.704 0.834 44.27 5.260 BMB4 6.53 Nitrate 0.021 0.006 0.30 0.035 BMB5 7.90 n.a. 0.028 0.011 0.59 n.a. BMB6 10.16 Sulfate 2.774 0.945 50.16 8.139 BMB

Total: 7.831 1.884 100.00 13.683

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

0.00

1.00

2.00

3.00

4.00

5.00

6.00 IC-08_180129A #24 N028226-006B,SAMP,20 ECD_1µS

min

1 - 2.4872 - Fluoride - 3.147


4 - Nitrate - 6.5345 - 7.897

6 - Sulfate - 10.164

IC8 RBA 1/30/2018 4:54 PM 87



Version 6.80 SR10 Build 2818 (166959)

25 N028224-002ADUP,DUP,5

DUP,2>10mL

Sample Name: N028224-002ADUP,DUP,5 Injection Volume: 1000.0Vial Number: 16 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 14:32 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000


1 2.49 n.a. 0.872 0.261 0.24 n.a. BMb2 3.14 Fluoride 0.346 0.091 0.09 0.502 bMB3 4.32 Chloride 162.456 27.421 25.61 168.812 BMb4 5.83 Bromide 0.044 0.009 0.01 0.154 bMB5 6.52 Nitrate 0.986 0.231 0.22 0.613 BMB6 7.67 n.a. 0.126 0.037 0.03 n.a. BMB7 8.73 o-Phosphate 0.032 0.057 0.05 0.547 BMB8 10.37 Sulfate 164.667 78.968 73.75 655.694 bMB

Total: 329.530 107.075 100.00 826.323

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00 IC-08_180129A #25 N028224-002ADUP,DUP,5 ECD_1µS

min

1 - 2.490



4 - Bromide - 5.830

5 - Nitrate - 6.524

6 - 7.670 7 - o-Phosphate - 8.730

8 - Sulfate - 10.367

IC8 RBA 1/30/2018 4:54 PM 88



Version 6.80 SR10 Build 2818 (166959)

25 N028224-002ADUP,DUP,5

DUP,2>10mL



1 2.49 n.a. 0.889 0.279 0.26 n.a. BM *2 3.14 Fluoride 0.384 0.111 0.10 0.601 MB*3 4.32 Chloride 162.456 27.421 25.60 168.812 BMb4 5.83 Bromide 0.044 0.009 0.01 0.154 bMB5 6.52 Nitrate 0.986 0.231 0.22 0.613 BMB6 7.67 n.a. 0.126 0.037 0.03 n.a. BMB7 8.73 o-Phosphate 0.032 0.057 0.05 0.547 BMb*8 10.37 Sulfate 164.667 78.968 73.72 655.694 bMB

Total: 329.585 107.113 100.00 826.422

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00 IC-08_180129A #25 [modified by IC-05] N028224-002ADUP,DUP,5 ECD_1µS

min

1 - 2.490



4 - Bromide - 5.830

5 - Nitrate - 6.524

6 - 7.670 7 - o-Phosphate - 8.730

8 - Sulfate - 10.367

IC8 RBA 1/30/2018 4:54 PM 89



Version 6.80 SR10 Build 2818 (166959)

26 N028225-001AMS,MS,5

MS,2>10mL

Sample Name: N028225-001AMS,MS,5 Injection Volume: 1000.0Vial Number: 17 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 14:48 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000


1 2.48 n.a. 0.435 0.128 0.21 n.a. BMB2 3.15 Fluoride 1.285 0.361 0.59 1.866 BMB3 4.29 Chloride 57.158 9.471 15.62 58.390 BMB4 5.84 Bromide 0.019 0.004 0.01 0.075 BMB5 6.53 Nitrate 0.251 0.059 0.10 0.173 BMB6 7.64 n.a. 0.105 0.033 0.05 n.a. BMB7 8.74 o-Phosphate 0.025 0.046 0.08 0.454 BMB8 10.31 Sulfate 120.937 50.520 83.34 419.591 bMB

Total: 180.215 60.622 100.00 480.550

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00 IC-08_180129A #26 N028225-001AMS,MS,5 ECD_1µS

min

1 - 2.484



4 - Bromide - 5.837

5 - Nitrate - 6.530

6 - 7.644 7 - o-Phosphate - 8.744

8 - Sulfate - 10.314

IC8 RBA 1/30/2018 4:54 PM 90



Version 6.80 SR10 Build 2818 (166959)

26 N028225-001AMS,MS,5

MS,2>10mL



1 2.48 n.a. 0.442 0.135 0.22 n.a. BM *2 3.15 Fluoride 1.300 0.370 0.61 1.914 MB*3 4.29 Chloride 57.158 9.471 15.62 58.390 BMB4 5.84 Bromide 0.019 0.004 0.01 0.075 BMB5 6.53 Nitrate 0.251 0.059 0.10 0.173 BMB6 7.64 n.a. 0.105 0.033 0.05 n.a. BMB7 8.74 o-Phosphate 0.025 0.046 0.08 0.454 BMb*8 10.31 Sulfate 120.937 50.520 83.31 419.591 bMB

Total: 180.236 60.639 100.00 480.598

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00 IC-08_180129A #26 [modified by IC-05] N028225-001AMS,MS,5 ECD_1µS

min

1 - 2.484



4 - Bromide - 5.837

5 - Nitrate - 6.530

6 - 7.644 7 - o-Phosphate - 8.744

8 - Sulfate - 10.314

IC8 RBA 1/30/2018 4:54 PM 91



Version 6.80 SR10 Build 2818 (166959)

27 N028225-001AMSD,MSD,5

MSD,2>10mL

Sample Name: N028225-001AMSD,MSD,5 Injection Volume: 1000.0Vial Number: 16 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 15:03 Sample Weight: 1.0000Run Time (min): 13.00 Sample Amount: 1.0000


1 2.48 n.a. 0.428 0.125 0.21 n.a. BMB2 3.15 Fluoride 1.278 0.355 0.59 1.838 BMB3 4.29 Chloride 57.031 9.433 15.63 58.155 BMB4 5.85 Bromide 0.021 0.005 0.01 0.101 BMB5 6.53 Nitrate 0.257 0.060 0.10 0.174 BMb6 7.66 n.a. 0.101 0.035 0.06 n.a. bMB7 8.83 o-Phosphate 0.022 0.048 0.08 0.471 BMB8 10.31 Sulfate 120.510 50.287 83.33 417.655 bMB

Total: 179.649 60.349 100.00 478.393

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00 IC-08_180129A #27 N028225-001AMSD,MSD,5 ECD_1µS

min

1 - 2.484



4 - Bromide - 5.847

5 - Nitrate - 6.530

6 - 7.664 7 - o-Phosphate - 8.830

8 - Sulfate - 10.310

IC8 RBA 1/30/2018 4:54 PM 92



Version 6.80 SR10 Build 2818 (166959)

27 N028225-001AMSD,MSD,5

MSD,2>10mL



1 2.48 n.a. 0.434 0.131 0.22 n.a. BM *2 3.15 Fluoride 1.292 0.364 0.60 1.884 MB*3 4.29 Chloride 57.031 9.433 15.63 58.155 BMB4 5.85 Bromide 0.021 0.005 0.01 0.101 BMB5 6.53 Nitrate 0.257 0.060 0.10 0.174 BMb6 7.66 n.a. 0.101 0.035 0.06 n.a. bMB7 8.83 o-Phosphate 0.022 0.048 0.08 0.471 BMb*8 10.31 Sulfate 120.510 50.287 83.31 417.655 bMB

Total: 179.669 60.364 100.00 478.440

0.0 1.3 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 13.0-0.50

-0.25

-0.00

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00 IC-08_180129A #27 [modified by IC-05] N028225-001AMSD,MSD,5 ECD_1µS

min

1 - 2.484



4 - Bromide - 5.847

5 - Nitrate - 6.530

6 - 7.664 7 - o-Phosphate - 8.830

8 - Sulfate - 10.310

IC8 RBA 1/30/2018 4:54 PM 93



Version 6.80 SR10 Build 2818 (166959)

28 N028226-003AMS,MS,20

MS,0.5>10mL



1 2.49 n.a. 0.184 0.055 2.28 n.a. BMB2 3.14 Fluoride 0.154 0.041 1.72 0.248 bMB3 4.27 Chloride 4.689 0.838 35.00 5.282 BMB4 6.54 Nitrate 0.018 0.003 0.14 0.030 BMB5 7.92 n.a. 0.028 0.010 0.43 n.a. BMB6 10.16 Sulfate 4.234 1.446 60.42 12.298 BMB

Total: 9.308 2.394 100.00 17.858

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

0.00

1.00

2.00

3.00

4.00

5.00 IC-08_180129A #28 N028226-003AMS,MS,20 ECD_1µS

min

1 - 2.4872 - Fluoride - 3.144


4 - Nitrate - 6.5405 - 7.917

6 - Sulfate - 10.160

IC8 RBA 1/30/2018 4:54 PM 94



Version 6.80 SR10 Build 2818 (166959)

29 N028226-003AMSD,MSD,20

MSD,0.5>10mL



1 2.48 n.a. 0.109 0.032 1.36 n.a. BMb2 3.15 Fluoride 0.156 0.043 1.83 0.257 bMB3 4.27 Chloride 4.670 0.836 35.44 5.270 BMB4 6.54 Nitrate 0.018 0.004 0.18 0.032 BMB5 7.96 n.a. 0.024 0.009 0.36 n.a. BMB6 10.16 Sulfate 4.208 1.435 60.83 12.203 BMB

Total: 9.184 2.358 100.00 17.762

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

0.00

1.00

2.00

3.00

4.00

5.00 IC-08_180129A #29 N028226-003AMSD,MSD,20 ECD_1µS

min

1 - 2.4842 - Fluoride - 3.147


4 - Nitrate - 6.5375 - 7.964

6 - Sulfate - 10.157

IC8 RBA 1/30/2018 4:54 PM 95



Version 6.80 SR10 Build 2818 (166959)

30 N028226-004ADUP,DUP,20

DUP,0.5>10mL



1 2.48 n.a. 0.111 0.033 2.25 n.a. BMB2 3.14 Fluoride 0.163 0.044 3.01 0.263 bMB3 4.27 Chloride 4.046 0.723 49.12 4.576 BMB4 6.53 Nitrate 0.028 0.007 0.46 0.038 BMB5 7.93 n.a. 0.025 0.009 0.61 n.a. BMB6 10.15 Sulfate 1.885 0.656 44.55 5.738 BMB

Total: 6.258 1.472 100.00 10.616

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

0.00

1.00

2.00

3.00


min

1 - 2.4842 - Fluoride - 3.144


4 - Nitrate - 6.5305 - 7.930

6 - Sulfate - 10.150

IC8 RBA 1/30/2018 4:54 PM 96



Version 6.80 SR10 Build 2818 (166959)

31 CCV-3,CCV,1

CCV




Total: 8.814 2.132 100.00 12.443

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.50

-0.00

0.50

1.00

1.50

2.00

2.50 IC-08_180129A #31 CCV-3,CCV,1 ECD_1µS

min

1 - 2.484



4 - Nitrite - 5.024

5 - Bromide - 5.844

6 - Nitrate - 6.530

7 - 7.937


9 - Sulfate - 10.147

IC8 RBA 1/30/2018 4:54 PM 97



Version 6.80 SR10 Build 2818 (166959)

32 CCB-3,CCB,1

CCB



Total: 0.000 0.000 0.00 0.000

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.88

-0.75

-0.62

-0.50

-0.37

-0.25

-0.12

0.02 IC-08_180129A #32 CCB-3,CCB,1 ECD_1µS

min

IC8 RBA 1/30/2018 4:54 PM 98



Version 6.80 SR10 Build 2818 (166959)

33 N028296-001A,SAMP,5

SAMP,2>10mL

Sample Name: N028296-001A,SAMP,5 Injection Volume: 1000.0Vial Number: 18 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default2 Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 16:35 Sample Weight: 1.0000Run Time (min): 20.00 Sample Amount: 1.0000


1 2.33 n.a. 0.072 0.006 0.00 n.a. BMb2 2.47 n.a. 0.288 0.042 0.03 n.a. bMB3 3.38 Fluoride 0.295 0.126 0.08 0.677 BMb4 4.21 Chloride 0.030 0.004 0.00 0.152 bMB5 4.83 Nitrite 0.054 0.052 0.03 0.177 BMB6 6.51 Nitrate 0.018 0.004 0.00 0.030 BMB7 7.38 n.a. 0.078 0.028 0.02 n.a. BMB8 7.82 n.a. 0.203 0.103 0.07 n.a. BMB9 8.70 o-Phosphate 0.011 0.002 0.00 0.076 bMB

10 9.13 n.a. 0.016 0.004 0.00 n.a. BMB11 10.56 Sulfate 233.499 148.636 99.75 1233.902 bMB

0.5 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 12.7-0.29

-0.13

-0.00

0.13

0.25

0.38

0.50

0.63

0.75

0.92 IC-08_180129A #33 N028296-001A,SAMP,5 ECD_1µS

min

1 - 2.334

2 - 2.467


4 - Chloride - 4.2075 - Nitrite - 4.8346 - Nitrate - 6.5077 - 7.380

8 - 7.820

9 - o-Phosphate - 8.69710 - 9.134

11 - Sulfate - 10.564

IC8 RBA 1/30/2018 4:54 PM 99



Version 6.80 SR10 Build 2818 (166959)

Total: 234.563 149.005 100.00 1235.015

IC8 RBA 1/30/2018 4:54 PM 100



Version 6.80 SR10 Build 2818 (166959)

33 N028296-001A,SAMP,5

SAMP,2>10mL



1 2.33 n.a. 0.072 0.006 0.00 n.a. BMb2 2.47 n.a. 0.288 0.042 0.03 n.a. bMB3 3.38 Fluoride 0.290 0.119 0.08 0.644 BMb*4 4.21 Chloride 0.007 0.000 0.00 0.131 BMB*5 4.83 Nitrite 0.054 0.052 0.03 0.178 BMB*6 6.51 Nitrate 0.018 0.004 0.00 0.030 BMB7 7.38 n.a. 0.078 0.028 0.02 n.a. BMB8 7.82 n.a. 0.203 0.103 0.07 n.a. BMb*9 8.70 o-Phosphate 0.011 0.002 0.00 0.076 bMB

10 9.13 n.a. 0.016 0.004 0.00 n.a. BMb*11 10.56 Sulfate 233.499 148.636 99.76 1233.902 bMB

0.5 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 12.7-0.29

-0.13

-0.00

0.13

0.25

0.38

0.50

0.63

0.75


min

1 - 2.334

2 - 2.467



8 - 7.820

9 - o-Phosphate - 8.69710 - 9.134

11 - Sulfate - 10.564

IC8 RBA 1/30/2018 4:54 PM 101



Version 6.80 SR10 Build 2818 (166959)

Total: 234.535 148.995 100.00 1234.961

IC8 RBA 1/30/2018 4:54 PM 102



Version 6.80 SR10 Build 2818 (166959)

34 N028296-002A,SAMP,5

SAMP,2>10mL



1 2.33 n.a. 0.079 0.006 0.00 n.a. BMb2 2.47 n.a. 0.251 0.035 0.02 n.a. bMB3 3.38 Fluoride 0.358 0.134 0.09 0.720 BMb4 4.22 Chloride 0.054 0.009 0.01 0.182 bMB5 4.88 Nitrite 0.035 0.030 0.02 0.109 BMB6 6.51 Nitrate 0.016 0.003 0.00 0.028 BMb7 6.83 n.a. 0.017 0.032 0.02 n.a. bMB8 7.84 n.a. 0.181 0.088 0.06 n.a. BMB9 8.75 o-Phosphate 0.014 0.003 0.00 0.086 bMB

10 9.13 n.a. 0.013 0.002 0.00 n.a. bMB11 10.54 Sulfate 229.762 145.917 99.77 1211.332 BMB

0.5 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 12.7-0.29

-0.13

-0.00

0.13

0.25

0.38

0.50

0.63

0.75

0.92 IC-08_180129A #34 N028296-002A,SAMP,5 ECD_1µS

min

1 - 2.334

2 - 2.467



8 - 7.844

9 - o-Phosphate - 8.75010 - 9.134

11 - Sulfate - 10.544

IC8 RBA 1/30/2018 4:54 PM 103



Version 6.80 SR10 Build 2818 (166959)

Total: 230.779 146.258 100.00 1212.456

IC8 RBA 1/30/2018 4:54 PM 104



Version 6.80 SR10 Build 2818 (166959)

34 N028296-002A,SAMP,5

SAMP,2>10mL



1 2.33 n.a. 0.079 0.006 0.00 n.a. BMb2 2.47 n.a. 0.251 0.035 0.02 n.a. bMB3 3.38 Fluoride 0.361 0.138 0.09 0.739 BMb*4 4.22 Chloride 0.025 0.002 0.00 0.141 BMB*5 4.88 Nitrite 0.035 0.030 0.02 0.109 BMB6 6.51 Nitrate 0.016 0.003 0.00 0.028 BMb7 6.83 n.a. 0.017 0.032 0.02 n.a. bMB8 7.84 n.a. 0.181 0.088 0.06 n.a. BMb*9 8.75 o-Phosphate 0.014 0.003 0.00 0.086 bMb*


0.5 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 12.7-0.29

-0.13

-0.00

0.13

0.25

0.38

0.50

0.63

0.75


min

1 - 2.334

2 - 2.467



8 - 7.844

9 - o-Phosphate - 8.75010 - 9.134

11 - Sulfate - 10.544

IC8 RBA 1/30/2018 4:54 PM 105



Version 6.80 SR10 Build 2818 (166959)

Total: 230.753 146.256 100.00 1212.434

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35 N028296-003A,SAMP,5

SAMP,2>10mL



1 2.33 n.a. 0.082 0.006 0.00 n.a. BMb2 2.47 n.a. 0.274 0.039 0.03 n.a. bMB3 3.38 Fluoride 0.343 0.137 0.09 0.732 BMb4 4.21 Chloride 0.039 0.005 0.00 0.158 bMB5 4.93 Nitrite 0.043 0.043 0.03 0.150 BMB6 6.51 Nitrate 0.012 0.002 0.00 0.026 BMB7 7.35 n.a. 0.075 0.033 0.02 n.a. bMB8 7.82 n.a. 0.194 0.098 0.07 n.a. BMB9 8.71 o-Phosphate 0.010 0.002 0.00 0.075 bMb


0.5 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 12.7-0.29

-0.13

-0.00

0.13

0.25

0.38

0.50

0.63

0.75

0.92 IC-08_180129A #35 N028296-003A,SAMP,5 ECD_1µS

min

1 - 2.330

2 - 2.467



8 - 7.820

9 - o-Phosphate - 8.70710 - 9.134

11 - Sulfate - 10.547

IC8 RBA 1/30/2018 4:54 PM 107



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Total: 231.992 145.363 100.00 1204.840

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35 N028296-003A,SAMP,5

SAMP,2>10mL



1 2.33 n.a. 0.082 0.006 0.00 n.a. BMb2 2.47 n.a. 0.274 0.039 0.03 n.a. bMB3 3.38 Fluoride 0.343 0.137 0.09 0.732 BMB*4 4.21 Chloride 0.017 0.001 0.00 0.136 bMB*5 4.93 Nitrite 0.043 0.043 0.03 0.150 BMB6 6.51 Nitrate 0.012 0.002 0.00 0.026 BMb*7 7.35 n.a. 0.075 0.033 0.02 n.a. bMB8 7.82 n.a. 0.194 0.098 0.07 n.a. BMb*9 8.71 o-Phosphate 0.010 0.002 0.00 0.075 bMb


0.5 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 12.7-0.29

-0.13

-0.00

0.13

0.25

0.38

0.50

0.63

0.75


min

1 - 2.330

2 - 2.467



8 - 7.820

9 - o-Phosphate - 8.70710 - 9.134

11 - Sulfate - 10.547

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Total: 231.970 145.359 100.00 1204.818

IC8 RBA 1/30/2018 4:54 PM 110



Version 6.80 SR10 Build 2818 (166959)

36 N028296-001ADUP,DUP,5

DUP,2>10mL

Sample Name: N028296-001ADUP,DUP,5 Injection Volume: 1000.0Vial Number: 19 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default2 Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 17:42 Sample Weight: 1.0000Run Time (min): 20.00 Sample Amount: 1.0000


1 2.33 n.a. 0.076 0.006 0.00 n.a. BMb2 2.46 n.a. 0.250 0.035 0.02 n.a. bMB3 3.38 Fluoride 0.316 0.143 0.10 0.763 BMb4 4.22 Chloride 0.045 0.007 0.00 0.170 bMB5 4.93 Nitrite 0.042 0.036 0.02 0.129 BMB6 6.50 Nitrate 0.024 0.005 0.00 0.034 BMB7 7.37 n.a. 0.079 0.030 0.02 n.a. BMB8 7.81 n.a. 0.207 0.102 0.07 n.a. BMB9 8.78 o-Phosphate 0.021 0.005 0.00 0.100 bMb


0.5 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 12.7-0.29

-0.13

-0.00

0.13

0.25

0.38

0.50

0.63

0.75


min

1 - 2.330

2 - 2.464



8 - 7.810

9 - o-Phosphate - 8.77710 - 9.127

11 - Sulfate - 10.554

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Total: 233.809 150.006 100.00 1243.367

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Version 6.80 SR10 Build 2818 (166959)

36 N028296-001ADUP,DUP,5

DUP,2>10mL

Sample Name: N028296-001ADUP,DUP,5 Injection Volume: 1000.0Vial Number: 19 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default2 Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 17:42 Sample Weight: 1.0000Run Time (min): 20.00 Sample Amount: 1.0000


1 2.33 n.a. 0.076 0.006 0.00 n.a. BMb2 2.46 n.a. 0.250 0.035 0.02 n.a. bMB3 3.38 Fluoride 0.316 0.143 0.10 0.763 BMB*4 4.22 Chloride 0.013 0.001 0.00 0.134 bMB*5 4.93 Nitrite 0.042 0.036 0.02 0.129 BMB6 6.50 Nitrate 0.024 0.005 0.00 0.034 BMB7 7.37 n.a. 0.079 0.030 0.02 n.a. BMB8 7.81 n.a. 0.207 0.102 0.07 n.a. BMb*9 8.78 o-Phosphate 0.021 0.005 0.00 0.100 bMb


0.5 2.5 3.8 5.0 6.3 7.5 8.8 10.0 11.3 12.7-0.29

-0.13

-0.00

0.13

0.25

0.38

0.50

0.63

0.75

0.92 IC-08_180129A #36 [modified by IC-05] N028296-001ADUP,DUP,5 ECD_1µS

min

1 - 2.330

2 - 2.464



8 - 7.810

9 - o-Phosphate - 8.77710 - 9.127

11 - Sulfate - 10.554

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Version 6.80 SR10 Build 2818 (166959)

Total: 233.776 150.000 100.00 1243.331

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Version 6.80 SR10 Build 2818 (166959)

37 N028296-001AMS,MS,5

MS,2>10mL

Sample Name: N028296-001AMS,MS,5 Injection Volume: 1000.0Vial Number: 18 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default2 Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 18:04 Sample Weight: 1.0000Run Time (min): 20.00 Sample Amount: 1.0000


1 2.33 n.a. 0.071 0.006 0.00 n.a. BMb2 2.47 n.a. 0.294 0.043 0.03 n.a. bMB3 3.38 Fluoride 0.291 0.122 0.08 0.658 BMB4 4.26 Chloride 1.588 0.299 0.20 1.967 bMB5 6.50 Nitrate 0.019 0.003 0.00 0.029 BMb6 6.88 n.a. 0.022 0.031 0.02 n.a. bMB7 7.83 n.a. 0.194 0.096 0.06 n.a. BMb8 8.63 o-Phosphate 0.007 0.001 0.00 0.069 bMB9 10.55 Sulfate 233.789 147.447 99.59 1224.034 BMB

Total: 236.277 148.048 100.00 1226.757

0.0 2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0-1

50

100

150

200

250 IC-08_180129A #37 N028296-001AMS,MS,5 ECD_1µS

min1 - 2.3342 - 2.4673 - Fluoride - 3.3844 - Chloride - 4.2605 - Nitrate - 6.5046 - 6.8807 - 7.8278 - o-Phosphate - 8.634

9 - Sulfate - 10.547

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Version 6.80 SR10 Build 2818 (166959)

38 N028296-001AMSD,MSD,5

MSD,2>10mL

Sample Name: N028296-001AMSD,MSD,5 Injection Volume: 1000.0Vial Number: 19 Channel: ECD_1Sample Type: unknown Wavelength: n.a.Control Program: Anions Default2 Bandwidth: n.a.Quantif. Method: EPA 300_0_180126 Dilution Factor: 1.0000Recording Time: 1/29/2018 18:26 Sample Weight: 1.0000Run Time (min): 20.00 Sample Amount: 1.0000


1 2.33 n.a. 0.073 0.006 0.00 n.a. BMb2 2.47 n.a. 0.269 0.038 0.03 n.a. bMB3 3.38 Fluoride 0.294 0.125 0.08 0.672 BMB4 4.26 Chloride 1.606 0.299 0.20 1.970 bMB5 6.51 Nitrate 0.020 0.004 0.00 0.030 BMb6 7.40 n.a. 0.076 0.031 0.02 n.a. bMB7 7.84 n.a. 0.195 0.114 0.08 n.a. BMB8 9.13 n.a. 0.010 0.002 0.00 n.a. bMB9 10.54 Sulfate 231.783 147.326 99.58 1223.032 BMB

Total: 234.326 147.945 100.00 1225.703

0.0 2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0-1

50

100

150

200

250 IC-08_180129A #38 N028296-001AMSD,MSD,5 ECD_1µS

min1 - 2.3332 - 2.4673 - Fluoride - 3.3834 - Chloride - 4.2635 - Nitrate - 6.5106 - 7.4007 - 7.8408 - 9.130

9 - Sulfate - 10.543

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Version 6.80 SR10 Build 2818 (166959)

39 BLANK,BLANK,1

BLANK



1 2.20 n.a. 0.626 0.633 54.77 n.a. BMB2 3.85 Chloride 0.021 0.354 30.59 2.304 BMb3 3.91 n.a. 0.003 0.006 0.54 n.a. bMB4 5.96 Bromide 0.013 0.050 4.30 0.813 BMB5 7.67 n.a. 0.050 0.024 2.04 n.a. BMB6 8.18 n.a. 0.029 0.014 1.18 n.a. BMB7 9.97 Sulfate 0.081 0.037 3.23 0.605 BMB8 10.44 n.a. 0.074 0.039 3.35 n.a. BMB

Total: 0.897 1.156 100.00 3.722

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.88

-0.75

-0.62

-0.50

-0.37

-0.25

-0.12

0.10 IC-08_180129A #39 BLANK,BLANK,1 ECD_1µS

min

1 - 2.197 2 - Chloride - 3.8503 - 3.910 4 - Bromide - 5.9645 - 7.6676 - 8.1847 - Sulfate - 9.9678 - 10.444

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40 CCV-4,CCV,1

CCV



1 2.49 n.a. 0.048 0.015 0.71 n.a. BMB2 3.14 Fluoride 0.934 0.252 11.83 1.314 BMb3 4.26 Chloride 1.675 0.297 13.97 1.957 bMB4 5.02 Nitrite 1.995 0.409 19.21 1.285 BMB5 5.84 Bromide 0.382 0.079 3.71 1.283 BMB6 6.52 Nitrate 2.036 0.471 22.15 1.231 BMB7 7.91 n.a. 0.012 0.004 0.18 n.a. BMB8 8.85 o-Phosphate 0.436 0.150 7.06 1.341 BMB9 10.12 Sulfate 1.322 0.451 21.19 4.039 bMB

Total: 8.842 2.128 100.00 12.450

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.50

-0.00

0.50

1.00

1.50

2.00

2.50 IC-08_180129A #40 CCV-4,CCV,1 ECD_1µS

min

1 - 2.487



4 - Nitrite - 5.017

5 - Bromide - 5.837

6 - Nitrate - 6.523

7 - 7.910


9 - Sulfate - 10.120

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41 CCB-4,CCB,1

CCB



1 2.50 n.a. 0.071 0.022 88.39 n.a. BMB2 4.27 Chloride 0.009 0.001 5.32 0.137 BMB3 7.78 n.a. 0.009 0.002 6.29 n.a. BMB

Total: 0.088 0.024 100.00 0.137

0.0 2.0 4.0 6.0 8.0 10.0 13.0-1.00

-0.80

-0.60

-0.40

-0.20

-0.00

0.20 IC-08_180129A #41 CCB-4,CCB,1 ECD_1µS

min

1 - 2.500

2 - Chloride - 4.267 3 - 7.777

IC8 RBA 1/30/2018 4:54 PM 119


P: 702.307.2659 F: 702.307.2691



P: 562.219.7435 F: 562.219.7436

STANDARDS LOG

120

Appendix B Data Quality Review

Data Quality Assessment Summary Compliance monitoring groundwater data was collected following procedures developed for the sampling program and for sampling and analytical laboratory contracts. Data were entered into a project database and auto-validation was performed followed by manual checks to complete Stage 2B validation requirements of the National Functional Guidelines and related guidance (USEPA 2014 and 2009a). The final activity in the data quality evaluation process was an assessment of whether the data meet the data quality objectives, including reporting limits below federal maximum contaminant levels (MCLs). The goal of this assessment is to demonstrate that a sufficient number of representative samples were collected, and the resulting analytical data can be used to support the decision-making process. The precision, accuracy, representativeness, completeness, comparability and sensitivity (PARCCS) of the groundwater data were evaluated. The following discussion summarize the results of this evaluation for the January 2018 resample of the detection monitoring data.

The following summary highlights the data evaluation findings for the above-defined events:

• Precision of the data was verified through the review of the field and laboratory data quality indicators that include: relative percent differences (RPDs) calculated for results from field duplicate (FD), lab control standard and duplicate (LCS/LCSD), matrix spike and duplicate (MS/MSD), and laboratory duplicate samples. Precision was acceptable.

• Accuracy of the data was verified through the review of the LCS, MS/MSD, and post-digestion spike recoveries, as well as the evaluation of the method blank/field blank data. Accuracy was acceptable, and method and field blank data were free of contamination.

• Representativeness of the data was verified through the sample’s collection, storage, and the verification of holding-time compliance. No issues related to sample collection or storage of the samples were noted by the laboratories. Data were reported from analyses within the USEPA-recommended holding times.

• Comparability of the data was verified through the use of standard USEPA analytical procedures and standard units for reporting. Results obtained are comparable to industry standards in that the collection and analytical techniques followed approved, documented procedures.

• Sensitivity is a measurement based upon the analytical instrument method reporting limits (MRLs) determined by each subcontract laboratory. The analytical reporting limits were determined based upon the completion of instrument-specific method detection limit (MDL) studies performed annually in accordance with the Code of Federal Regulations, Title 40, Part 136, Appendix B (USEPA, 1984). The MRLs are generally established by multiplying the MDL by a factor of three to five as recommended by generally accepted laboratory practice and is further supported by the lowest-level analytical standard in the initial calibration process. Sensitivity is ensured through compliance with the MRLs specified in the laboratory contracts and the sampling program. Any nondetect results that were reported by the laboratory, or were flagged non-detect due to blank contamination, have been evaluated against the project screening levels.

• Completeness is a measure of the number of valid measurements obtained in relation to the total number of measurements planned. Completeness is expressed as the percentage of valid or usable measurements compared to planned measurements. Valid data are defined as data that are not rejected for project use. Table 1 summarizes completeness for the January 2018 resample of the detection monitoring data. The completeness goal of greater than 90 percent was met for all analyte/methods, as indicated in Table 1.

Evaluation of 100 percent of the chemical data was performed for the metrics described above. The overall completeness was met, and no other systematic protocol errors were identified during the monitoring of the field or laboratory efforts. This along with the PARCCS evaluation demonstrate that the overall quality of the analytical program and laboratory are sufficient to meet the project data quality objectives.

Table 1. Site Completeness Summary

Total

Number of

Samples a

Total Number

of Results

Number of Qualified Results

as Nondetect b


as Estimated c


as Rejected d Percent

Completeness

Method Number % Number % Number % Number %e

SW9040B pH 1 1 0 0.0 0 0.0 0 0.0 1 100.0

SW9056 Anions 1 1 0 0.0 0 0.0 0 0.0 1 100.0

a Includes field duplicate and normal samples. b Results flagged U. c Results flagged J or UJ. d Results flagged R. e % Complete = ((reported results-unusable results)/reported results)*100.

Appendix C Coal Combustion Residual Detection

Monitoring Laboratory Data Line Plots

● ●

●● ● ● ●

● ●●

UPL = 6,750 ug/L

2,500

5,000

7,500

10,000

12,500

Oct−16 Feb−17 Jun−17 Oct−17 Feb−18

Sample Date

Res

ult (

ug/L

)

Boron in CCR−4

● ●●

● ●● ● ●

● ●

UPL = 5,470 ug/L

2,500

5,000

7,500

10,000

12,500


Sample Date

Res

ult (

ug/L

)

Boron in KMW−12

● ●●

●● ●

●●

●

UPL = 7,310 ug/L

2,500

5,000

7,500

10,000

12,500


Sample Date

Res

ult (

ug/L

)

Boron in LMW−3

●●

●● ● ● ●

●●

●

UPL = 8,510 ug/L

2,500

5,000

7,500

10,000

12,500


Sample Date

Res

ult (

ug/L

)

Boron in LMW−4R

●●

●●

●

● ● ● ●

●

UPL = 10,600 ug/L

2,500

5,000

7,500

10,000

12,500


Sample Date

Res

ult (

ug/L

)

Boron in LMW−5R

● ●

●● ●

● ●●

●

●

UPL = 10,000 ug/L

2,500

5,000

7,500

10,000

12,500


Sample Date

Res

ult (

ug/L

)

Boron in LMW−6R

●●

●● ● ●

● ● ● ●

UPL = 5,210 ug/L

2,500

5,000

7,500

10,000

12,500


Sample Date

Res

ult (

ug/L

)

Boron in LMW−8R

●● ● ● ● ● ●

● ●●

UPL = 368,000 ug/L

200,000

400,000

600,000

800,000


Sample Date

Res

ult (

ug/L

)

Calcium in CCR−4

Time Series Plots Compliance Monitoring Well Results

Page 1 of 7

● ● ● ● ●●

●●

● ●

UPL = 403,000 ug/L

200,000

400,000

600,000

800,000


Sample Date

Res

ult (

ug/L

)

Calcium in KMW−12

●● ● ●

● ●

●

●●

●

UPL = 565,000 ug/L

200,000

400,000

600,000

800,000


Sample Date

Res

ult (

ug/L

)

Calcium in LMW−3

● ● ● ● ● ● ●

● ●●

UPL = 480,000 ug/L

200,000

400,000

600,000

800,000


Sample Date

Res

ult (

ug/L

)

Calcium in LMW−4R

● ● ● ●● ● ● ● ●

●

UPL = 481,000 ug/L

200,000

400,000

600,000

800,000


Sample Date

Res

ult (

ug/L

)

Calcium in LMW−5R

●● ● ● ● ● ●

● ●

●

UPL = 455,000 ug/L

200,000

400,000

600,000

800,000


Sample Date

Res

ult (

ug/L

)

Calcium in LMW−6R

●

●

● ● ●●

●●

●●

UPL = 724,000 ug/L

200,000

400,000

600,000

800,000


Sample Date

Res

ult (

ug/L

)

Calcium in LMW−8R

● ● ● ● ● ● ● ● ● ●UPL = 307 mg/L

300

600

900

1,200


Sample Date

Res

ult (

mg/

L)

Chloride in CCR−4

● ● ● ● ● ● ● ● ● ●

UPL = 452 mg/L

300

600

900

1,200


Sample Date

Res

ult (

mg/

L)

Chloride in KMW−12


Page 2 of 7

● ●● ● ● ●

●●

●●

UPL = 694 mg/L

300

600

900

1,200


Sample Date

Res

ult (

mg/

L)

Chloride in LMW−3

● ●● ● ● ● ● ● ● ●

UPL = 584 mg/L

300

600

900

1,200


Sample Date

Res

ult (

mg/

L)

Chloride in LMW−4R

● ●● ● ● ● ● ●

●●

UPL = 618 mg/L

300

600

900

1,200


Sample Date

Res

ult (

mg/

L)


● ● ● ● ● ●

●

●● ●

UPL = 701 mg/L

300

600

900

1,200


Sample Date

Res

ult (

mg/

L)


●●

●● ●

● ●●

●

●

UPL = 1,020 mg/L

300

600

900

1,200


Sample Date

Res

ult (

mg/

L)


● ● ● ● ●● ● ●

●●

UPL = 2.23 mg/L

1

2

3


Sample Date

Res

ult (

mg/

L)

Fluoride in CCR−4

●

●● ● ● ●

●●

●●

UPL = 2.41 mg/L

1

2

3


Sample Date

Res

ult (

mg/

L)

Fluoride in KMW−12

●

●

●● ●

● ● ●

● ●

UPL = 1.79 mg/L

1

2

3


Sample Date

Res

ult (

mg/

L)

Fluoride in LMW−3


Page 3 of 7

● ●●

● ●● ● ●

● ●UPL = 2.65 mg/L

1

2

3


Sample Date

Res

ult (

mg/

L)

Fluoride in LMW−4R

● ● ● ● ●● ● ●

● ●UPL = 1.97 mg/L

1

2

3


Sample Date

Res

ult (

mg/

L)


●●

● ●●

● ● ●

●●

●UPL = 2.9 mg/L

1

2

3


Sample Date

Res

ult (

mg/

L)


●●

●

●

●

● ●

●

●

●

UPL = 3.03 mg/L

1

2

3


Sample Date

Res

ult (

mg/

L)


●● ●

● ●● ●

●

●

●

UPL = 8.18 SU

LPL = 7.14 SU7.0

7.5

8.0

8.5


Sample Date

Res

ult (

SU

)

pH in CCR−4

● ● ● ● ● ● ● ● ● ●

UPL = 7.57 SU

LPL = 7.39 SU

7.0

7.5

8.0

8.5


Sample Date

Res

ult (

SU

)

pH in KMW−12

●● ● ●

●

● ●● ●

●

UPL = 7.63 SU

LPL = 7.15 SU7.0

7.5

8.0

8.5


Sample Date

Res

ult (

SU

)

pH in LMW−3

● ● ● ● ●●

● ●●

●UPL = 7.75 SU

LPL = 7.32 SU

7.0

7.5

8.0

8.5


Sample Date

Res

ult (

SU

)

pH in LMW−4R


Page 4 of 7

● ●●

●●

● ● ● ●

●

●

UPL = 7.63 SU

LPL = 7.27 SU7.0

7.5

8.0

8.5


Sample Date

Res

ult (

SU

)

pH in LMW−5R

● ●●

●●

●●

●●

●

UPL = 7.88 SU

LPL = 7.14 SU7.0

7.5

8.0

8.5


Sample Date

Res

ult (

SU

)

pH in LMW−6R

● ● ●● ●

●●

●●

●

UPL = 7.53 SU

LPL = 7.11 SU7.0

7.5

8.0

8.5


Sample Date

Res

ult (

SU

)

pH in LMW−8R

● ● ●●

● ● ● ●●

●

UPL = 2,060 mg/L

1,000

2,000

3,000


Sample Date

Res

ult (

mg/

L)

Sulfate in CCR−4

● ●● ● ● ● ● ●

●●

UPL = 2,480 mg/L

1,000

2,000

3,000


Sample Date

Res

ult (

mg/

L)

Sulfate in KMW−12

● ●● ● ● ● ●

● ●●

UPL = 2,950 mg/L

1,000

2,000

3,000


Sample Date

Res

ult (

mg/

L)

Sulfate in LMW−3

● ●

● ● ● ● ● ● ●●

UPL = 2,750 mg/L

1,000

2,000

3,000


Sample Date

Res

ult (

mg/

L)

Sulfate in LMW−4R

● ●● ● ● ● ●

●●

●

UPL = 3,140 mg/L

1,000

2,000

3,000


Sample Date

Res

ult (

mg/

L)

Sulfate in LMW−5R


Page 5 of 7

● ● ● ● ● ●

●

●●

●

UPL = 2,700 mg/L

1,000

2,000

3,000


Sample Date

Res

ult (

mg/

L)

Sulfate in LMW−6R

●●

● ● ● ● ● ●●

●

UPL = 3,390 mg/L

1,000

2,000

3,000


Sample Date

Res

ult (

mg/

L)

Sulfate in LMW−8R

●● ● ● ● ● ● ● ● ●

UPL = 3,310 mg/L

3,000

4,000

5,000

6,000


Sample Date

Res

ult (

mg/

L)

TDS in CCR−4

● ● ● ● ● ●●

● ● ●

UPL = 4,180 mg/L

3,000

4,000

5,000

6,000


Sample Date

Res

ult (

mg/

L)

TDS in KMW−12

● ●● ● ● ● ● ● ● ●

UPL = 4,950 mg/L

3,000

4,000

5,000

6,000


Sample Date

Res

ult (

mg/

L)

TDS in LMW−3

● ● ●●

●●

● ● ●●

UPL = 4,700 mg/L

3,000

4,000

5,000

6,000


Sample Date

Res

ult (

mg/

L)

TDS in LMW−4R

● ● ●●

● ●● ● ●

●

UPL = 5,160 mg/L

3,000

4,000

5,000

6,000


Sample Date

Res

ult (

mg/

L)

TDS in LMW−5R

● ● ● ●● ● ● ● ●

UPL = 4,910 mg/L

3,000

4,000

5,000

6,000


Sample Date

Res

ult (

mg/

L)

TDS in LMW−6R


Page 6 of 7

● ● ● ● ● ● ● ●●

●

UPL = 5,900 mg/L

3,000

4,000

5,000

6,000


Sample Date

Res

ult (

mg/

L)

TDS in LMW−8R


Page 7 of 7

●

●

●

●

●●

●●

●

●

600

700

800

900

1,000

1,100

Oct−16 Feb−17 Jun−17 Oct−17

Sample Date

Res

ult (

ug/L

)

Boron in CCR−3

● ●

●

●

● ● ●●

●

●

1,600

2,000

2,400

2,800


Sample Date

Res

ult (

ug/L

)

Boron in LMW−9

●●

●

●

●●

●

●●

●

7,000

8,000

9,000


Sample Date

Res

ult (

ug/L

)

Boron in LMW−10

●

●

●

●●

●

●

● ●●

1,200

1,500

1,800

2,100


Sample Date

Res

ult (

ug/L

)

Boron in KMW−16

● ●

●

●

●

●●

● ●

●

200,000

225,000

250,000

275,000


Sample Date

Res

ult (

ug/L

)

Calcium in CCR−3

●

●●

●

●

● ●

●

●

●300,000

350,000


Sample Date

Res

ult (

ug/L

)

Calcium in LMW−9

●

● ●

●

●●

●

●

●

●

275,000

300,000

325,000

350,000


Sample Date

Res

ult (

ug/L

)

Calcium in LMW−10

● ● ● ● ● ●

●

● ●●

200,000

300,000

400,000


Sample Date

Res

ult (

ug/L

)

Calcium in KMW−16

Time Series Plots Upgradient and Crossgradient Monitoring Well Results

Page 1 of 4

●

●

● ● ●

●●

●

●●

85

90

95

100


Sample Date

Res

ult (

mg/

L)

Chloride in CCR−3

●

●

●

●●

●

●

●

●

●

275

300

325

350


Sample Date

Res

ult (

mg/

L)

Chloride in LMW−9

● ●

●

●●

●

●

●

●

●

440

460

480

500

520


Sample Date

Res

ult (

mg/

L)

Chloride in LMW−10

●

● ●

● ●

●

●

●

●

●

140

160

180

200


Sample Date

Res

ult (

mg/

L)

Chloride in KMW−16

●

● ● ●

●

●

●

●

●

●

2.8

3.0

3.2


Sample Date

Res

ult (

mg/

L)

Fluoride in CCR−3

●

● ● ●●

●

●

●

●

●

2.50

2.75

3.00

3.25


Sample Date

Res

ult (

mg/

L)

Fluoride in LMW−9

● ●

● ●●

● ●●

●

●

1.5

2.0


Sample Date

Res

ult (

mg/

L)

Fluoride in LMW−10

●

●

●●

●

●

●

●

●●

2.75

3.00

3.25

3.50

3.75


Sample Date

Res

ult (

mg/

L)

Fluoride in KMW−16


Page 2 of 4

●●

●

●

●

●

●

●

● ●

7.4

7.5

7.6

7.7


Sample Date

Res

ult (

SU

)

pH in CCR−3

●

●

●

●

●

● ●

●

●●

7.3

7.4

7.5

7.6

7.7

7.8

7.9


Sample Date

Res

ult (

SU

)

pH in LMW−9

●

●

●

●●

●

●●

●

●

7.2

7.4

7.6

7.8


Sample Date

Res

ult (

SU

)

pH in LMW−10

●●

●

●

● ●

●

● ●

●

7.2

7.5

7.8

8.1


Sample Date

Res

ult (

SU

)

pH in KMW−16

●●

●

●

●

● ●●

●

●

1,100

1,150

1,200

1,250

1,300


Sample Date

Res

ult (

mg/

L)

Sulfate in CCR−3

●

●

●

●

●● ●

●

●

●

1,600

1,700

1,800


Sample Date

Res

ult (

mg/

L)

Sulfate in LMW−9

● ●

●

●

●●

●●

●

●

1,900

2,000

2,100

2,200

2,300


Sample Date

Res

ult (

mg/

L)

Sulfate in LMW−10

●

● ●

● ●

●●

●

●

●

1,300

1,400

1,500


Sample Date

Res

ult (

mg/

L)

Sulfate in KMW−16


Page 3 of 4

●●

●

●

●

●

●

●

●

●

1,880

1,920

1,960

2,000

2,040


Sample Date

Res

ult (

mg/

L)

TDS in CCR−3

●

●

●

●

●

●

●

●

●

●

3,000

3,050

3,100

3,150


Sample Date

Res

ult (

mg/

L)

TDS in LMW−9

●●

●

●

●● ●

●

●

●

3,500

3,600

3,700

3,800

3,900

4,000


Sample Date

Res

ult (

mg/

L)

TDS in LMW−10

●

●●

●

●

●●

●

●

2,200

2,300

2,400

2,500


Sample Date

Res

ult (

mg/

L)

TDS in KMW−16


Page 4 of 4

Appendix D Multivariate Statistics — Principal

Components Analyses

PR1003171617LAS D-1

APPENDIX D

Multivariate Statistical Analyses — Principal Components Analyses Identifying Patterns of Similarity/Abnormality among Sampling Observations Using Principal Component Analysis Multivariate analysis using principal component analysis (PCA) was conducted to identify whether samples from the Reid Gardner Mesa Coal Combustion Residual (CCR) Landfill with exceedances of background exhibit different statistical characteristics than the characteristics exhibited by the remaining sample population (i.e., background samples and compliance samples with no exceedances). PCA is commonly used to effectively identify anomalies and patterns potentially present in multidimensional data sets. PCA is a multivariate statistical method that can be used to provide added insight into the patterns present in a data set that is not possible to identify and comprehend based upon information provided by univariate statistics. Multivariate methods perform evaluations for multiple variables simultaneously in comparison with univariate methods, which perform evaluations one variable at a time; univariate methods do not consider correlations between variables. In general, PCA is an effective method for analyzing data sets consisting of correlated variables, such as hydrogeochemical data from groundwater detection monitoring.

PCA is used to reduce the dimensionality of a data set with correlated variables by creating new uncorrelated variables (the principal components [PCs]) that are linear combinations of the data (Joliffe, 1986). In other words, this method allows the variability of data to be represented using only two variables. The PCs are ordered such that the first few account for most of the variation present in the original variables. The factor loadings are responsible for the correlations between PCs and selected variables, and those with the greatest positive and negative loadings make the largest contribution. As a result, PC loadings can offer information on the sources that are responsible for similarities of collected samples in groundwater quality.

PCA has also been used as a robust outlier identification method, especially when dealing with multivariate data sets consisting of observations for several constituents and monitoring locations (Singh, 1993; Jackson and Chen, 2004; EPA, 2009). PCA has been widely used to investigate the proportional composition of environmental samples to determine potential sources of contamination (Mudge, 2015). Multivariate analysis using PCA can be used to determine characteristic components of natural groundwater background, thus enabling identification of groundwater contamination due to leaching of solid waste, leakage from raffinate ponds and tailings seepage, improper irrigation, and geological and hydrogeological conditions (Dong et al., 2007; U.S. Department of Energy, 2012). For detailed discussions of multivariate statistical methods and underlying mathematical theory, the reader is referred to the books by Joliffe (1986) and Johnson and Wichern (2007).

D-2 PR1003171617LAS

APPENDIX G. MULTIVARIATE STATISTICAL ANALYSES — PRINCIPAL COMPONENTS ANALYSES

For the RGS Mesa Landfill, the data set used to conduct PCA consisted of 110 samples, representing the 9 rounds of background samples collected from July 2016 through April 2017 and one round of compliance samples collected in October 2017 from the 11 RGS Landfill CCR monitoring wells. The variables selected for analysis consisted of the CCR Appendix III constituents: boron, calcium, chloride, fluoride, pH, sulfate, and TDS. PCA requires that the input variables have similar scales of measurement and when comparing variables that have different units of measure and different variances, the data need to be standardized. The RGS Landfill data were standardized by mean-centering and scaling to unit variance prior to analysis. Table D-1 presents the PCA data, and the sample numbers in the first columnTable D-1 are referenced in thefollowing figures, so that results for specific wells and events can be identified.

A biplot showing the correlations between constituents, and between the constituents and the PCs, combined with the positioning of the data from the 110 samples (11 wells x [9 background + 1 compliance] sampling events] is shown in Figure D-1. In the biplot, the samples are points (represented by sample numbers ranging from 1 to 110) and the constituents are the vectors. The positioning of the sample points is determined based on the factor scores of observations for each retained PC. The factor scores quantify the relationships between the samples and the PCs based on their combined chemical signatures. In Figure D-2, background samples (BKGD) are shown as red symbols and samples collected during compliance sampling (COMP) are shown as blue symbols. As indicated in the axis titles, the first two components (PC1 and PC2) explain 68.8 percent and 13.1 percent of the total variability contained in the original variables, respectively. Figure 3 shows the same biplot but where the data are color-coded by well. The biplots show the following features of the collected data set in one display:

• the variance-covariance structure of the variables;• the values of observations considering all constituents for various sampling events; and• the Euclidean distances between observations in the multidimensional space.

Biplots are useful for revealing clustering, multicollinearity, and multivariate outliers of a data set (Johnson and Wichern 2007). Biplots highlight relationships among observations collected over various sampling events and can be used to help identify anomalous sample(s), if present in the data set.

Figures D-3 and D-4 show biplots of the PCA with 95 percent bivariate confidence ellipses for the entire data set (110 samples) and for well-specific data sets, respectively. A confidence ellipse is a region that contains a specific percentage of the population under the assumption that the population is bivariate normal. For example, a 95 percent confidence ellipse indicates a region that contains 95 percent of samples drawn from a bivariate normal population with mean and covariance matrices that are equal to the sample estimates. A confidence ellipse is helpful for detecting deviation from normality, outlier(s), or anomalous sample(s). If you overlay a confidence ellipse on your sample and the sample does not "fill" the ellipse in the way that bivariate normal data would, then you have a graphical indication that the data are not bivariate normal. Because the center of the ellipse is the sample mean, a confidence ellipse can give a visual indication of skewness and outliers in the data.

In Figure D-3, a few samples are outside the 95 percent confidence region estimated for the entire monitoring well network (sample size of 110). However, as shown in Figure D-4, these same samples are within the 95 percent confidence region for each representative well. A confidence ellipse is associated with the true population mean of the bivariate distribution. For the RGS Landfill, the population mean across the entire monitoring network, composed of 11 wells exhibiting spatial variability, is expected to be much different than the mean for a single well. Additionally, as the number of observations increases, the mean will usually be better estimated. This explains why a few samples are located differently with respect to the different confidence regions shown in Figures D-3 and D-4.

Figures D-3 and D-4 indicate the component scores for upgradient well LMW-10 and downgradient well LMW-8R are different than the component scores for the remaining upgradient and downgradient wells, respectively. This difference of component scores may suggest variation in water-quality processes

APPENDIX G. MULTIVARIATE STATISTICAL ANALYSES — PRINCIPAL COMPONENTS ANALYSES

PR1003171617LAS D-3

associated with these two wells, possibly due to differences in geomorphology and geology. However, there does not appear to be differences in the component scores between downgradient compliance and background samples.

Results of the PCA analysis indicate that the range of composition of the compliance samples at the RGS Landfill are within a similar component score range and distance from the origin, for the first and second principal components, as the background samples. In addition, the compliance sample results are within the 95 percent confidence ellipse for the first and second principal components. Results from another sample population, such as if a release occurred at the RGS Landfill, would be identified by data points that plot well outside of the ellipse, away from the other sample results. This pattern leads to the conclusion that the compliance sample analytical results are not significantly different than the chemical signature of ambient groundwater. In conclusion, the analyses indicate a commonality in chemical signatures between groundwater samples collected during background and compliance sampling at the RGS Landfill. The main cause of variability in the sample populations are likely due to natural geochemical and hydrogeological processes within the monitoring area.

References Dong. D., Q. Wi, R. Zhang, Y. Song, S. Chen, P. Li, S. Liu, C. Bi, Z. LV, and S. Hunag. 2007. Environmental Characteristics of Groundwater: An Application of PCA to Water Chemistry Analysis in Yulin. Journal of China University of Mining and Technology. 17:1, March, Pages 73-77.

Jackson, D.A. and Y. Chen. 2004. Robust Principal Component Analysis and Outlier Detection with Ecological Data. Environmetrics. 15: 129–139.

Johnson, R.A. and D. Wichern. 2007. Applied Multivariate Statistical Analysis. 6th Edition. Prentice Hall.

Jolliffe, I.T. 1986. Principal Component Analysis. Springer-Verlag, New York, New York.

Mudge, Stephen. (2015). Multivariate Statistical Methods and Source Identification in Environmental Forensics. In Introduction to Environmental Forensics. 3rd Edition, editors Brian Murphy and Robert Morrison. pp 655-675. Elsevier Science Publishers.

Singh, A. 1993. Omnibus Robust Procedures for Assessment of Multivariate Normality and Detection of Multivariate Outliers. In Multivariate Environmental Statistics, Patil G.P. and Rao, C.R., Editors, pp. 445-488. Elsevier Science Publishers.

U.S. Department of Energy. 2012. Multivariate Statistical Analysis of Water Chemistry in Evaluating the Origin of Contamination in Many Devils Wash, Shiprock, New Mexico. LMS/SHP/S09257. December.

U.S. Environmental Protection Agency (EPA). 2009. Scout 2008 – A Robust Statistical Package. Office of Research and Development, February.

Table D-1. PCA Data and Principal ComponentsReid Gardner Station CCR Landfill

Moapa, Nevada

SampleNumber Well

SampleDate

SampleType

WellLocation

Boron(µg/L)

Boron(µg/L)

Chloride(mg/L)

Fluoride(mg/L)

pH(SU)

Sulfate(mg/L)

TDS(mg/L) PC1 PC2

1 CCR-3 7/13/2016 BKGD UG 778 244,000 89.3 2.97 7.60 1,140 2,000 -3.7485 -0.71452 CCR-3 8/15/2016 BKGD UG 878 243,000 91.1 2.86 7.62 1,160 1,990 -3.7149 -0.56423 CCR-3 9/26/2016 BKGD UG 658 232,000 94.0 2.88 7.50 1,220 1,980 -3.4838 -0.97694 CCR-3 10/17/2016 BKGD UG 744 205,000 94.6 2.88 7.55 1,270 1,940 -3.6609 -0.68015 CCR-3 11/14/2016 BKGD UG 831 224,000 94.9 2.99 7.63 1,230 1,960 -3.8292 -0.52776 CCR-3 12/19/2016 BKGD UG 869 242,000 92.7 2.84 7.47 1,200 1,990 -3.3503 -1.03637 CCR-3 1/24/2017 BKGD UG 901 247,000 94.2 2.93 7.57 1,200 1,960 -3.5986 -0.76588 CCR-3 2/14/2017 BKGD UG 864 254,000 91.7 2.82 7.62 1,190 1,980 -3.6353 -0.58989 CCR-3 4/17/2017 BKGD UG 960 254,000 99.3 2.94 7.55 1,230 1,950 -3.4980 -0.8457

10 CCR-3 10/17/2017 COMP UG 827 241,000 98.2 3.18 7.56 1,160 1,920 -3.7705 -0.918211 CCR-4 7/14/2016 BKGD DG 5,710 320,000 268 1.54 7.56 1,770 3,250 -0.7555 0.851612 CCR-4 8/16/2016 BKGD DG 5,790 285,000 268 1.49 7.41 1,810 3,090 -0.5615 0.558213 CCR-4 9/27/2016 BKGD DG 4,710 275,000 274 1.55 7.37 1,850 3,200 -0.5814 0.133114 CCR-4 10/18/2016 BKGD DG 5,580 289,000 288 1.57 7.55 1,980 3,190 -0.7053 0.899815 CCR-4 11/14/2016 BKGD DG 5,400 277,000 281 1.59 7.54 1,850 3,160 -0.8848 0.848216 CCR-4 12/20/2016 BKGD DG 5,340 277,000 280 1.48 7.38 1,920 3,200 -0.4222 0.370717 CCR-4 1/25/2017 BKGD DG 5,660 295,000 289 1.46 7.35 1,840 3,160 -0.3015 0.293318 CCR-4 2/15/2017 BKGD DG 6,140 330,000 274 1.47 7.45 1,760 3,100 -0.4505 0.612019 CCR-4 4/19/2017 BKGD DG 5,980 340,000 296 1.78 7.87 1,910 3,180 -1.3071 1.738820 CCR-4 10/18/2017 COMP DG 5,380 297,000 277 1.98 7.38 1,790 3,150 -0.7144 0.057921 KMW-12 7/19/2016 BKGD DG 4,750 366,000 381 2.00 7.52 2,110 3,900 -0.0907 0.007822 KMW-12 8/17/2016 BKGD DG 4,840 358,000 357 1.72 7.48 2,050 3,930 0.0342 0.073323 KMW-12 9/28/2016 BKGD DG 4,040 354,000 392 1.83 7.49 2,260 3,970 0.0946 -0.155824 KMW-12 10/19/2016 BKGD DG 4,500 333,000 393 1.92 7.52 2,230 3,830 -0.1179 0.111725 KMW-12 11/16/2016 BKGD DG 4,490 326,000 405 1.85 7.47 2,330 3,960 0.1502 0.006126 KMW-12 12/22/2016 BKGD DG 4,910 359,000 395 1.75 7.46 2,280 3,980 0.3451 0.009727 KMW-12 1/26/2017 BKGD DG 4,640 332,000 416 1.92 7.45 2,190 3,640 -0.0156 -0.078728 KMW-12 2/16/2017 BKGD DG 4,940 384,000 392 1.75 7.46 2,160 3,820 0.2806 -0.082729 KMW-12 4/20/2017 BKGD DG 4,180 337,000 428 2.32 7.44 2,320 3,870 -0.0105 -0.453130 KMW-12 10/19/2017 COMP DG 4,530 360,000 402 2.18 7.47 2,160 3,790 -0.0844 -0.279731 KMW-16 7/14/2016 BKGD UG 1,600 233,000 156 3.05 7.76 1,310 2,340 -3.6829 0.011132 KMW-16 8/16/2016 BKGD UG 1,760 229,000 165 3.40 7.70 1,410 2,390 -3.6075 -0.287033 KMW-16 9/26/2016 BKGD UG 1,390 218,000 167 3.23 7.63 1,400 2,370 -3.4680 -0.494234 KMW-16 10/17/2016 BKGD UG 1,770 228,000 183 3.33 7.48 1,490 4,480 -2.1558 -1.031535 KMW-16 11/16/2016 BKGD UG 1,880 218,000 181 3.43 7.63 1,500 2,490 -3.3571 -0.454436 KMW-16 12/21/2016 BKGD UG 1,650 223,000 165 3.24 7.64 1,430 2,310 -3.4507 -0.408037 KMW-16 1/25/2017 BKGD UG 1,230 383,000 179 3.52 7.51 1,460 2,360 -2.6822 -1.712638 KMW-16 2/15/2017 BKGD UG 1,880 251,000 170 3.24 7.72 1,400 2,340 -3.4931 -0.199939 KMW-16 4/19/2017 BKGD UG 1,850 259,000 188 3.60 7.70 1,500 2,290 -3.5094 -0.474340 KMW-16 10/18/2017 COMP UG 1,780 230,000 182 3.67 8.06 1,410 2,420 -4.4715 0.742441 LMW-10 7/13/2016 BKGD UG 7,870 319,000 462 1.94 7.66 2,060 3,890 -0.0610 1.5093


Moapa, Nevada

SampleNumber Well

SampleDate

SampleType

WellLocation

Boron(µg/L)

Boron(µg/L)

Chloride(mg/L)

Fluoride(mg/L)

pH(SU)

Sulfate(mg/L)

TDS(mg/L) PC1 PC2

42 LMW-10 8/16/2016 BKGD UG 8,080 288,000 460 1.90 7.48 2,060 3,840 0.2335 1.128843 LMW-10 9/26/2016 BKGD UG 6,950 291,000 484 1.57 7.42 2,110 3,880 0.5073 0.755044 LMW-10 10/17/2016 BKGD UG 8,230 311,000 474 1.59 7.59 2,220 3,800 0.3852 1.592445 LMW-10 11/14/2016 BKGD UG 7,710 286,000 479 1.64 7.54 2,130 3,870 0.2835 1.347046 LMW-10 12/19/2016 BKGD UG 7,870 291,000 486 1.52 7.41 2,150 3,920 0.7120 1.005547 LMW-10 1/24/2017 BKGD UG 8,120 304,000 500 1.50 7.48 2,110 3,930 0.6489 1.251048 LMW-10 2/14/2017 BKGD UG 8,420 342,000 487 1.41 7.53 2,090 3,850 0.6899 1.397949 LMW-10 4/17/2017 BKGD UG 8,160 329,000 509 1.88 7.68 2,140 3,780 0.1055 1.633950 LMW-10 10/17/2017 COMP UG 7,700 294,000 485 2.11 7.35 1,990 3,640 0.3051 0.467951 LMW-3 7/18/2016 BKGD DG 6,050 449,000 576 1.10 7.47 2,520 4,820 1.9944 0.228752 LMW-3 8/17/2016 BKGD DG 5,980 421,000 551 1.62 7.36 2,520 4,880 1.8382 -0.275953 LMW-3 9/28/2016 BKGD DG 5,540 437,000 616 1.13 7.36 2,780 4,680 2.3340 -0.230054 LMW-3 10/19/2016 BKGD DG 6,400 443,000 616 1.24 7.33 2,720 4,760 2.4546 -0.169255 LMW-3 11/15/2016 BKGD DG 5,670 405,000 622 1.23 7.49 2,700 4,680 1.8475 0.295856 LMW-3 12/22/2016 BKGD DG 6,010 423,000 591 1.10 7.30 2,710 4,700 2.3871 -0.218257 LMW-3 1/25/2017 BKGD DG 1,240 342,000 646 1.07 7.29 2,780 4,810 1.7663 -1.280158 LMW-3 2/15/2017 BKGD DG 6,850 480,000 601 0.98 7.41 2,650 4,700 2.4922 0.196159 LMW-3 4/19/2017 BKGD DG 6,230 509,000 645 1.47 7.47 2,720 4,680 2.2901 -0.142460 LMW-3 10/19/2017 COMP DG 5,700 455,000 607 1.55 7.39 2,500 4,620 1.8923 -0.375161 LMW-4R 7/15/2016 BKGD DG 6,580 301,000 489 2.00 7.51 2,380 4,430 0.5323 0.699062 LMW-4R 8/17/2016 BKGD DG 7,050 297,000 471 2.05 7.56 2,290 4,360 0.3066 0.987763 LMW-4R 9/28/2016 BKGD DG 6,150 298,000 534 2.16 7.58 2,570 4,360 0.4446 0.737864 LMW-4R 10/19/2016 BKGD DG 6,640 283,000 523 2.30 7.58 2,490 4,160 0.2127 0.872665 LMW-4R 11/15/2016 BKGD DG 6,920 292,000 538 2.24 7.64 2,570 4,400 0.3661 1.130266 LMW-4R 12/21/2016 BKGD DG 7,170 296,000 524 2.12 7.54 2,550 4,080 0.5149 0.933867 LMW-4R 1/26/2017 BKGD DG 7,060 301,000 533 2.05 7.46 2,530 4,500 0.9015 0.637968 LMW-4R 2/16/2017 BKGD DG 7,970 362,000 509 1.96 7.41 2,440 4,360 1.2184 0.543669 LMW-4R 4/20/2017 BKGD DG 7,550 345,000 540 2.52 7.55 2,510 4,320 0.6226 0.671670 LMW-4R 10/19/2017 COMP DG 6,590 303,000 521 2.61 7.74 2,350 4,120 -0.3455 1.141371 LMW-5R 7/15/2016 BKGD DG 7,350 429,000 504 1.50 7.40 2,640 4,910 2.0127 0.293572 LMW-5R 8/17/2016 BKGD DG 7,750 414,000 485 1.46 7.42 2,720 4,980 2.0314 0.560873 LMW-5R 9/28/2016 BKGD DG 6,580 412,000 542 1.46 7.52 2,890 4,940 1.8951 0.553474 LMW-5R 10/19/2016 BKGD DG 7,310 399,000 526 1.53 7.40 2,820 4,700 1.9757 0.397275 LMW-5R 11/15/2016 BKGD DG 10,100 435,000 554 1.50 7.56 2,910 4,870 2.2972 1.559976 LMW-5R 12/21/2016 BKGD DG 8,140 437,000 531 1.30 7.46 2,920 4,740 2.3015 0.789377 LMW-5R 1/26/2017 BKGD DG 8,050 432,000 553 1.25 7.40 2,880 5,000 2.5450 0.591578 LMW-5R 2/15/2017 BKGD DG 8,160 452,000 519 1.32 7.46 2,740 4,860 2.2381 0.713579 LMW-5R 4/20/2017 BKGD DG 8,110 455,000 588 1.87 7.45 2,980 4,780 2.2798 0.384380 LMW-5R 10/19/2017 COMP DG 7,100 415,000 546 1.90 7.68 2,690 4,540 1.0956 0.991481 LMW-6R 7/14/2016 BKGD DG 8,320 382,000 594 2.41 7.56 2,410 4,600 1.0273 0.785882 LMW-6R 8/16/2016 BKGD DG 8,180 341,000 628 2.62 7.53 2,460 4,630 0.9349 0.6978


Moapa, Nevada

SampleNumber Well

SampleDate

SampleType

WellLocation

Boron(µg/L)

Boron(µg/L)

Chloride(mg/L)

Fluoride(mg/L)

pH(SU)

Sulfate(mg/L)

TDS(mg/L) PC1 PC2

83 LMW-6R 9/27/2016 BKGD DG 7,050 348,000 618 2.42 7.37 2,510 4,700 1.3224 -0.063184 LMW-6R 10/17/2016 BKGD DG 7,750 337,000 653 2.38 7.73 2,610 2,360 -0.2011 1.432385 LMW-6R 11/14/2016 BKGD DG 7,800 327,000 642 2.54 7.57 2,540 4,800 0.9475 0.808086 LMW-6R 12/21/2016 BKGD DG 8,360 348,000 631 2.35 7.45 2,540 4,590 1.3402 0.597187 LMW-6R 1/25/2017 BKGD DG 8,200 354,000 331 2.40 7.36 1,290 4,460 -0.0800 0.252388 LMW-6R 2/15/2017 BKGD DG 8,800 405,000 617 2.30 7.45 2,420 4,580 1.5080 0.518089 LMW-6R 4/17/2017 BKGD DG 9,380 423,000 672 2.79 7.59 2,560 4,630 1.3324 0.814690 LMW-6R 10/18/2017 COMP DG 7,850 358,000 642 2.98 7.78 2,420 4,510 0.1877 1.170791 LMW-8R 7/14/2016 BKGD DG 4,030 583,000 847 2.21 7.36 2,930 5,680 3.1459 -1.865992 LMW-8R 8/17/2016 BKGD DG 4,440 683,000 807 2.42 7.30 2,800 5,700 3.4277 -2.430293 LMW-8R 9/27/2016 BKGD DG 3,530 549,000 878 1.69 7.27 3,070 5,720 3.5954 -1.920594 LMW-8R 10/18/2016 BKGD DG 4,240 570,000 937 1.99 7.39 3,100 5,580 3.4306 -1.577495 LMW-8R 11/15/2016 BKGD DG 4,050 553,000 909 1.01 7.37 3,120 5,640 3.8564 -1.149796 LMW-8R 12/20/2016 BKGD DG 4,120 592,000 868 1.91 7.27 3,130 5,760 3.7602 -2.020497 LMW-8R 1/25/2017 BKGD DG 4,650 641,000 896 1.98 7.20 3,040 5,640 4.0620 -2.339298 LMW-8R 2/15/2017 BKGD DG 4,620 585,000 854 1.70 7.32 2,950 5,740 3.6144 -1.598299 LMW-8R 4/19/2017 BKGD DG 4,410 634,000 966 2.16 7.40 3,220 5,350 3.6414 -1.8248100 LMW-8R 10/18/2017 COMP DG 4,220 603,000 869 2.68 7.27 2,910 5,540 3.1781 -2.4129101 LMW-9 7/13/2016 BKGD UG 2,170 332,000 298 2.96 7.76 1,620 3,020 -2.4088 -0.2359102 LMW-9 8/15/2016 BKGD UG 2,190 308,000 310 2.70 7.63 1,650 3,110 -2.0032 -0.4390103 LMW-9 9/27/2016 BKGD UG 1,710 296,000 325 2.69 7.45 1,730 3,040 -1.6464 -1.1024104 LMW-9 10/17/2016 BKGD UG 2,350 323,000 340 2.70 7.60 1,780 3,010 -1.7452 -0.5496105 LMW-9 11/14/2016 BKGD UG 2,130 290,000 332 2.78 7.70 1,720 3,040 -2.2014 -0.1988106 LMW-9 12/19/2016 BKGD UG 2,120 304,000 324 2.56 7.54 1,740 3,120 -1.6616 -0.6669107 LMW-9 1/24/2017 BKGD UG 2,120 306,000 337 2.67 7.52 1,730 3,040 -1.6794 -0.7958108 LMW-9 2/14/2017 BKGD UG 2,260 335,000 327 2.56 7.58 1,700 3,120 -1.6400 -0.6242109 LMW-9 4/17/2017 BKGD UG 2,500 361,000 344 2.87 7.52 1,750 3,040 -1.4975 -1.0016110 LMW-9 10/17/2017 COMP UG 2,040 305,000 334 3.05 7.47 1,640 3,070 -1.8340 -1.1641

Notes:µg/L = micrograms per liter DG = downgradient SU = standard unitsBKGD = background mg/L = milligrams per liter TDS = total dissolved solidsCOMP = compliance PC = principal components UG = upgradient

Attachment D-1 PCA Biplot by Event Type

Figure D‐1.

PCA Biplot for CCR Appendix III Constituents Color‐Coded by Sample Period

(Sample with background exceedance shown as black symbol; background samples [BKRD] are shown as red symbols and samples collected during compliance sampling [COMP] are shown as blue symbols; labels correspond to the sample number as shown in Table G‐1 PCA Data.)

Attachment D-2 PCA Biplot by Monitoring Well

Figure D‐2.

PCA Biplot for CCR Appendix III Constituents Color‐Coded by Well

(Sample with background exceedance shown as black symbol; labels correspond to the sample number as shown in Table G‐1 PCA Data.)

Attachment D-3 PCA 95% Confidence Ellipse for All Data

Figure D‐3.

PCA Individuals Plot for CCR Appendix III Constituents with Area‐Specific 95% Bivariate Confidence Ellipse

(Areas are UG upgradient and crossgradient wells, and DG downgradient or compliance wells; sample with background exceedance shown as black symbol; labels correspond to the sample number as shown Table G‐1 PCA Data.)

Attachment D-4 PCA 95% Confidence Ellipses by Well

Figure D‐4.

PCA Individuals Plot for CCR Appendix III Constituents with Well‐Specific 95% Bivariate Confidence Ellipses

(Sample with background exceedance shown as black symbol; labels correspond to the sample number as shown in Table G‐1 PCA Data.)

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