### URS Corporation 335 Commerce Drive, Suite 300 Fort Washington, PA 19034-2774 

# Semi-Annual Statistical Review of Groundwater Monitoring Results

DuPont Chambers Works Deepwater, New Jersey

1 st 

# Half 2013

Date: August 2013 Project No.: 18986344.13005Semi-Annual Statistical Review of Groundwater Monitoring Results 

### Table of Contents

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# Table of Contents

1.0 Introduction .................................................................................................................1

1.1 Groundwater Pump-and-Treat System ..............................................................1

1.2 Statistical Testing and Reporting .......................................................................1

1.3 Objective of the Sta tistical Analysis ..................................................................2

2.0 Groundwater Monitoring Programs ............................................................................3

2.1 Closure and Post-Closure Groundwater Monitoring Program for the A,
B, and C Basins ..................................................................................................3

2.2 Secure C Landfill Corrective Action Monitoring Program ...............................4

2.3 Secure C Landfill Detection Monitoring Program .............................................5

2.4 PFOA Monitoring Program ...............................................................................5

3.0 Methodology ...............................................................................................................7

3.1 Data Reduction and Data Processing .................................................................7

3.2 Preliminary Data Analysis .................................................................................8

3.2.1 Outlier Analysis ....................................................................................8

3.2.2 Descriptive Statistics ............................................................................8

3.3 Trend Analyses ..................................................................................................9

3.3.1 Time Series Plots ................................................................................10

3.3.2 Mann-Kendall Test for Trend .............................................................10

3.3.3 Control Charts ....................................................................................12

4.0 Results ....................................................................................................................... 14

4.1 Closure and Post-Closure Groundwater Monitoring Program for the A,
B, and C Basins ................................................................................................14

4.2 Secure C Landfill Corrective Action Program .................................................14

4.3 Secure C Landfill Detection Monitoring Program ...........................................14

4.4 PFOA Monitoring Program .............................................................................15

5.0 Summary and Conclusions .......................................................................................16

6.0 References .................................................................................................................17

Tables

Table 1 Summary of Baseline an d Current Monitoring Periods

Table 2 Summary of Statisti cally Significant Results: Closure and Post-Closure of A, B, and C Basins Program

Table 3 Summary of Statistically Significant Results: Secure C Landfill Corrective Action Program

Table 4 Summary of Statistically Signifi cant Results: Secure C Landfill Detection Monitoring Program

Table 5 Summary of Statistically Signi ficant Results: PFOA Monitoring ProgramSemi-Annual Statistical Review of Groundwater Monitoring Results 

### Table of Contents

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### Appendices

Appendix A Statistical Evaluation Results, Time-Series Plots, and Control Chart Analysis for the Closure and Post-Closu re of A, B, and C Basins Program

Appendix B Statistical Evaluation Results, Time-Series Plots, and Control Chart Analysis for the Secure C Landfill Corrective Action Program

Appendix C Statistical Evaluation Results, Time-Series Plots, and Control Chart Analysis for the Secure C Landfill Detection Monitoring Program

Appendix D Statistical Evaluation Results, Time-Series Plots, and Control Chart Analysis for the PFOA Monitoring ProgramSemi-Annual Statistical Review of Groundwater Monitoring Results 

### Introduction

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# 1.0 Introduction

URS Corporation (URS) on behalf of E.I. du Pont de Nemours and Company (DuPont) performed statistical an alyses conducted on groundwater anal ytical data collected at the DuPont Chambers Works Complex from 1989 to January 2013. The overall objective of the analysis is to determine the efficacy of a groundwater pump-and-treat system that is currently in use at the complex.



## 1.1 Groundwater Pump-and-Treat System

Site-related constituents identified in groundwater include metals and inorganic compounds, volatile organic compounds ( VOCs), semi-volatile organic compounds (SVOCs), and perfluorinated compounds (PFCs) . To control the off-site migration of constituents via groundwater flow, DuPont in stalled an Interceptor Well System (IWS),

which has been in operation since 1970.

The IWS is a pump-and-treat system that recovers more than 1.0 million gallons of groundwater each day and transfers the groundwat er to an on-site wastewater treatment plant. Once it is determined th at site-related constituents in the treated groundwater meet applicable criteria, it is then pumped to the adjacent Delaware River. This activity is authorized under a New Jersey Pollutant Discharge Elimination System-Discharge to Groundwater (NJPDES-DGW) permit issued for the complex in November 1988.



## 1.2 Statistical Testing and Reporting

The NJPDES-DGW permit requires the implementation of groundwater quality monitoring programs; the objective of which is to monitor the effectiveness of the IWS. In this regard, six groundwat er monitoring programs are currently being implemented to evaluate groundwater quality at the complex. These six monitoring programs include the following:

 

### Closure and Post-Closure Groundwater Mo nitoring Program for the A, B, and

C Basins

 

### Perimeter Monitoring Programs (divided into four areas)

 

### Secure C Landfill Corrective Action Monitoring Program

 

### Secure C Landfill Detection Monitoring Program

 

### Post Closure Monitoring for Resource Conservation and Recovery Act (RCRA)

Units

 

### Perfluorooctanoic Acid ( PFOA) Monitoring Program

Beginning in 1989, groundwater analytical data were collected under each of the six programs to remain in compliance with NJPDES-DGW Permit Nos. NJ0105872 and NJ0083429. Permit No. NJ0105872 applies to the Secure C Landfill Detection Monitoring Program. As described in this pe rmit, statistical tes ting of the groundwater analytical data and reporting are re quired semi-annually. Permit No. NJ0083429 stipulates that statistical testing and reporting are require d semi-annually for the ClosureSemi-Annual Statistical Review of Groundwater Monitoring Results 

### Introduction

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### and Post-Closure Groundwater Monitoring Pr ogram for the A, B, and C Basins; the Secure C Landfill Corrective Action and Detection Monitoring Programs; and the PFOA Monitoring Program. The Perimeter Mon itoring Programs and the Post Closure monitoring for the RCRA Units are reported annually; sampling for these two programs

was last conducted in la te July/early August 2012.



## 1.3 Objective of the Statistical Analysis

The objective of the statistical analysis is to evaluate curre nt groundwater quality data for significant shifts from historical baselin e levels, i.e., whether there are monotonic increasing or decreasing trends, and whet her current monitoring results exceed the statistically-derived baseline limits. As desc ribed in the U.S. Environmental Protection Agency (EPA) guidance document Statistical Analysis of Groundwater Monitoring Data

at RCRA Facilities – Unified Guidance (EPA, 2009), an appropriate baseline period is

based on actual site conditions and/or reme dial activities. The baseline period also represents the historical peri od over which it could be demons trated that the analytical data have shown no significant trend.

Differences between the baseline and the current monitoring period were evaluated statistically; with the null hypothesis ( H

o 

### ) being that no signifi cant change in current conditions would be observed. That is, any difference from baseline would represent random variation and did not signal a change in the site conditions. However, if there was overwhelming evidence, e.g., a very high con centration value, the null hypothesis would be rejected, and current conditi ons would be concluded to repr esent significant departures

from the baseline.Semi-Annual Statistical Review of Groundwater Monitoring Results 

### Groundwater Monitoring Programs

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# 2.0 Groundwater Monitoring Programs

Monitoring programs evaluated during the fi rst half of 2013 include the following:

 

### Closure and Post-Closure Groundwater Mo nitoring Program for the A, B, and

C Basins

 

### Secure C Landfill Corrective Action Monitoring Program

 

### Secure C Landfill Detection Monitoring Program

 

### PFOA Monitoring Program

An overview of the monitoring wells and the groundwater analytical parameters applicable to each of the gr oundwater monitoring programs evaluated during the first half of 2013 are presented in the following secti ons. The definition of baseline and current monitoring periods for each progr am is presented in Table 1.



## 2.1 Closure and Post-Closure Grou ndwater Monitoring Program for the A, B, and C Basins

The A, B, and C Basin Closure and Post-C losure Program addresses seven groundwater monitoring wells: G16-M02B, H13-M02B , H14-M01B, H16-P01B, J16-M01B, K13-M02B, and L14-M01B. The baseline period for this program extends from January 1, 1989 to December 31, 2006. The monitoring program extends from January 1, 2007 to

present.

The assessment of groundwater quality at th ese wells involves semi-annual sampling for several indicator and field parameters, in cluding total organic carbon (TOC), total organic halogen (TOX), dissolved oxygen (f ield), pH (field), reduction-oxidation potential (redox) (field), sp ecific conductance (field), and temperature (field).

Constituents sampled on a triennial basis were previously evaluated in the second half of 2012 and will not be assessed again until 2015. Triennial constituents include VOCs, SVOCs, metals, and other parameters.Semi-Annual Statistical Review of Groundwater Monitoring Results 

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Volatile Organic Compounds Semi-Volatile Organic Compounds Metals Additional

Parameters

1,1-Dichloroethane 1,2-Dichlorobenzene bis(2-Chloroethoxy)

methane Aluminum 4-Chloroaniline

1,1-Dichloroethene 1,2-Diphenylhydrazine bi s(2-Chloroethyl) ether Arsenic Aniline

1,2-Dichloroethane 1,3-Dichlorobenzene bis(2-Chloroisopropyl)

ether Beryllium Lead (dissolved)

1,2-Dichloropropane 1,4-Dichlorobenzene bis(2- Ethylhexyl) phthalate Cadmium o-Toluidine
1,1,1-Trichloroethane 1,2,4-Trichlorobenzene Butyl benzyl phthalate Iron Trichlorofluoromethane 1,1,2-Trichloroethane 2-Chlorophenol Chrysene Lead Xylenes

1,1,2,2-Tetrachloroethane 2-Nitr ophenol Diethyl phthalate Nickel
Benzene 2,4-Dichlorophenol Dimethyl phthalate Sodium
Bromodichloromethane 2,4-Dimethylphenol Di-n-butylphthalate Bromoform 2,4-Dinitrophenol Dibenzo(a,h)anthracene
Carbon tetrachloride 2,4-Dini trotoluene Fluoranthene
Chlorobenzene 2,6-Dinitrotoluene Fluorene Chlorodibromomethane 2,4,6-Trichlorophenol Hexachlorobenzene
Chloroform 3,3’-Dichlorobenzidine Hexachlorobutadiene
cis-1,3-Dichloropropene 4-chloro-3-methylphenol Hexachlorocyclopentadiene
Ethylbenzene 4-Chlorophenyl phenyl ether Hexachloroethane
Ethyl chloride 4-Bromophenyl phenyl ether Indeno(1,2,3-c,d)pyrene
Methyl bromide 4-Nitrophenol Isophorone
Methyl chloride 4,6-Dinitro-2-methylphenol N-Dioctyl phthalate Methylene chloride Acenaphthene N-Nitrosodimethylamine
Tetrachloroethylene Acenaphthylene N-Nitroso-diphenyl amine
Toluene Anthracene N-Nitroso-di-n-propylamine
trans-1,2-Dichloroethene Benzidine Naphthalene
trans-1,3-Dichloropropene Benz o(a)anthracene Nitrobenzene

Trichloroethene Benzo(a)pyrene PCN-2 (2- Chloronaphthalene)
Vinyl chloride Benzo(b)fluoranthene Phenanthrene Benzo(ghi)perylene Phenol Benzo(k)fluoranthene Pentachlorophenol
Pyrene



## 2.2 Secure C Landfill Corrective Action Monitoring Program

Five (non-background) monitoring wells are covered under the Secure C Landfill Corrective Action monitoring program: P21- M01B, P21-M04B, P21-R01B, Q20-M02B, and Q21-M01B.

The baseline period for the overall program extends from January 1, 1989 to December 31, 2007, and the monitoring period extends from January 1, 2008 to present. Exceptions include monitoring wells P21-M04B and P21- R01B. Specifically, the baseline period for monitoring well P21-R01B extended from January 1, 2008 to December 31, 2011, and the monitoring period started on January 1, 2012. The monitoring period for P21-M04B started on January 1, 2013, with a baseline pe riod that spanned from January 1, 2009 to
December 31, 2012. This is the first time that the monitoring data for P21-M04B will be evaluated against th e baseline period.

The groundwater quality parameters monito red at each well include the following.Semi-Annual Statistical Review of Groundwater Monitoring Results 

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VOCs (6) Total Organic Carbon (TOC) Aluminum (total)

SVOCs (base neutral) (8) Total Organic Halogen (TOX) Ammonia

Total Phenolics Arsenic (total)

Dissolved Oxygen (field) Chloride

pH (field) Cyanide (total)

Redox (field) Lead (total)

Specific Conductance (field) Nitrate

Temperature (field) Sodium

Sulfate



## 2.3 Secure C Landfill Detection Monitoring Program

The Secure C Landfill Detection Monitoring Program addresses four (non-background) monitoring wells: R19-M01B, R19-M02B, S 19-M01B, and S19-M02B. The baseline period for this program extended from January 1, 1989 to December 31, 2007. The monitoring program extends from January 1, 2008 to present.

The groundwater quality parameters monitored unde r this program are nearly identical to those identified for the Secure C Landfill Corrective Action Program with only subtle differences. Specifically, three semi-volatiles were added to the 31 parameters analyzed as part of the Secure C Landfill Detection Monitoring Program in the first half of 2002.



## 2.4 PFOA Monitoring Program

The PFOA Monitoring Program consists of 36 monitoring wells positioned along the perimeter and interior of the Complex. These monitoring wells are identified as follows:

AA22-M01B D15-M01B J10-M02B P06-M01B

AA25-M01B F07-M01B K12-M01A P06-M01D

AA25-M01C F08-M01A K13-M02B P06-M01E

C08-M01B F08-M01B L09-M01B P06-M02C

C11-M01C G04-M01B L09-M01C P21-M01B

C11-M01E G04-M01E L09-M01D R09-M02B

C11-M02D G05-M02B N08-M01B R10-M01C

C11-M03B G09-M01A N08-M01C R10-M01E

D06-M01B J05-M01C N08-M01D Z28-M01BSemi-Annual Statistical Review of Groundwater Monitoring Results

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### The baseline period for this program extended from January 1, 2003 to December 31, 2010. The only exception is monitoring well J10- M02B, which is currently in baseline development. The monitoring period for this well begins in 2015. PFCs have been monitored semi-annually at each well and consist of the following constituents:

Perfluorobutane sulfonic acid ( PFBS) Perfluorononanoic acid

Perfluorobutanoic acid Perf luorooctane sulfonamide

Perfluorodecanoic acid Perfluoropentanoic acid

Perfluorododecanoic acid Perfluoroundecanoic acid Perfluoroheptanoic acid Perf luorooctanoic acid (PFOA) Perfluorohexane sulfonic acid Perfluorooctyl sulfonates (PFOS)

Perfluorohexanoic acidSemi-Annual Statistical Review of Groundwater Monitoring Results 

### Methodology

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# 3.0 Methodology

Statistical analyses based on a broad family of hypothesis testi ng were conducted in accordance with the EPA guidance document Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities – Unified Guidance (EPA, 2009) and guidance provided by the American Society for Testing and Materials (ASTM) titled Standard Guide for Developing Appropriate Statistical Approaches for Ground-Water Detection
Monitoring Programs (ASTM, 1998). Other applicable guidance documents and

reference materials were consulted as n ecessary and are cited in this report.

The statistical tests used as part of the groundwater quality evaluation were selected on the basis of their ability to identify depa rtures of current conditions from baseline

conditions. The individual tests were conducted in a stepwise fashion:

 

### Data Reduction and Data Processing

 

### Preliminary Data Analysis

 Outlier Analysis

 Descriptive Statistics

 

### Trend Analyses

 Time Series Plots

 Mann-Kendall Test for Trend

 Control Charts

The complete data analysis process is reviewed in the following sections.



## 3.1 Data Reduction and Data Processing

The first step in the statistical analysis was to build individual data sets for each monitoring well. In this regard, individual data sets consisted of anal ytical data collected during the baseline and current monitoring periods. The baseline and current data sets were retrieved from the DuPont Corporate Environmental Database (CED) archives. All data were edited for samples that were negated (rejected) due to failed laboratory or field data quality objectives. Negated results may introduce biases into baseline statistics and

were excluded from calculations.

In keeping with past practi ces, duplicate samples collected during the current round of sampling were included in the evaluation by av eraging with the primary field sample. In those instances where a duplicate sample wa s not detected above the method detection limit (MDL) whereas the primary field sample was, 1⁄2 of the MDL was averaged with the detected field sample value.

Where available, current values for dissolv ed oxygen included in the evaluation were collected with the down-hole (DH) method, which involves placing the water quality

meter in the well and collect ing readings without purging the well. Where available, current values for pH, specific conductance, redox, and temperature were based on the STD–3WP method, which is a standard purge of three well volumes. The assumption isSemi-Annual Statistical Review of Groundwater Monitoring Results 

### Methodology

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### that values obtained from fresh groundwater with the STD- 3WP method are truly representative of gr oundwater conditions.



## 3.2 Preliminary Data Analysis

A preliminary data analysis was conducted on ea ch baseline data set. The objective of the preliminary analysis was to determine whethe r the data would meet the assumptions of the proposed trend and control chart analyses. Specifically, tests for trend were performed non-parametrically, which did not require a data set to fit a parametric (normal) distribution. For all baseline data sets, the pr eliminary data analyses included an outlier analysis and a compilation of descriptive statis tics, as described in the following sections.

3.2.1 Outlier Analysis

Outliers were identified as part of the base line data evaluation, using one of two EPArecommended outlier tests: the Dixon’s Extreme Value Te st (Dixon’s Test) or the Rosner’s “many outlier” Procedure (Rosner’s Test). The Dixon’s Te st is appropriate when dealing with sample sizes smaller th an 25 and where only one suspected outlier is present (Dixon, 1953 in Gilbert, 1987). Specifically, the Dixon’s Test is used to explore the possibility that the smallest or largest value in the data set is an outlier. For data sets with 25 or more samples, Rosner’s test was us ed to detect up to ten outliers. The potential number of outliers (an input pa rameter required by Rosner’s Test) was set to five. The significance level of both tests was set at the 0.01 alpha probability level as recommended by the EPA (2006).

Outliers were not deleted from a data set solely on the basis of the results of an outlier
test. As such, outliers were reviewed, and onl y excluded from further analysis for reasons deemed to be appropriate, i.e., obvious laborat ory or field measurement errors, and/or a data point judged to not be representative of the baseline conditions, i.e., an anomalous

value.

3.2.2 Descriptive Statistics

Following the removal of outliers, summary statistics for the baseline data were computed and tabulated. The baseline data summary statistics included the following:

 

### Number of data points in the data set

 

### Number of results below the MDL

 

### Minimum and maximum detected values

 

### Minimum and maximum MDLs for non-detects

 

### Sample mean

 

### Sample standard deviation

 

### Coefficient of variation (CV), wher e CV(%) = (standard deviation/mean)*100

For data sets with at least two detected valu es, greater than zero pe rcent detects, and less than 100 percent detects, the sample mean and standard deviation were estimated by the non-parametric Kaplan-Meier (KM) (1958) method (Helsel, 2005; Singh, et al., 2007;Semi-Annual Statistical Review of Groundwater Monitoring Results 

### Methodology

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### Singh and Singh, 2007). The KM estimation method is based upon a statistical distribution function estimate, except that th e method adjusts for censoring (Singh, et al., 2006). This method is also particularly useful for data sets with multiple detection limits. If a data set had less than five samples and le ss than two detected results, the KM method could not be applied, and the convention of substituting ha lf of the MDL for results reported as below limits of detection was used to complete the calculation of summary

statistics. For data sets with no detected resu lt, the summary statistics were not calculated.

With the KM method, x 1 

### , x 2 

### , ..., x n 

### represent n data values obtained from samples collected from a given monitoring well, and ݔ ଵ ᇱ 

### > ݔ ଶ ᇱ 

### >..., ݔ ௡ ᇱ 

### denote the n  ́ distinct values

at which detects are observed (Singh, et al., 2006). That is, n  ́ ( ≤ n ) represents distinct observed values that comprise a data set of size n (Singh, et al., 2006). For j = 1,..., n  ́

, m j



### denotes the number of detects at ݔ ௝ ᇱ 

### and n j 

### denote the number of x i 

### ≤ ݔ ௝ ᇱ 

### ; also, x (1) 

### denotes

the smallest x i 

### (Singh, et al., 2006).

The estimation of the mean ( ݑො ) using the KM method was conducted as follows:

ݑ ݔ෍ൌ ො

௜ ᇱ 

### ሾ ܨ

෨ ሺ ݔ ௜ ᇱ 

### ሻ െ ܨ ሺ ݔ ௜ିଵ ᇱ 

### ሻሿ , where	x

௢ 

### ൌ 0. ௡ ᇲ

௜ୀଵ



### The estimation of the standard error ሺ ߪො ௌா ଶ 

### ሻ using the KM method was conducted where:

ሺ ߪො

ௌா ଶ 

### ሻ ൌ ݊െ݇

݊െ݇െ1 ෍ ܽ

௜ ଶ 

### ݉ ௜ାଵ



### ݊ ௜ାଵ 

### ሺ ݊ ௜ାଵ 

### െ ݉ ௜ାଵ 

### ሻ ௡ ᇲ ିଵ

௜ୀଵ



### Here, k = the number of observations be low the detection limit, and:

ܽ ൌ ෍൫ݔ

௝ାଵ ᇱ 

### െ ݔ ௝ ᇱ 

### ൯ ௜

௝ୀଵ 

### ܨ ෨ ݔ൫ ௝ ᇱ 

### ൯, ݅:	 ൌ 1,2, ... , ݊ ᇱ 

### െ 1



## 3.3 Trend Analyses

An approach that considered multiple lines of evidence was used to reach conclusions regarding statistically significant increasing or decreasing trends. Sp ecifically, this was achieved with the use of time series plots, control charts, and the non-parametric MannKendall test for trend. The Mann-Kendall test for trend was conducted at a 1 percent significance level ( α = 0.01) on the baseline data be fore the control charts were completed. In turn, control charts were only c onstructed for those data sets that did not exhibit a statistically signifi cant Mann-Kendall trend test result. A time series plot was constructed for every monitori ng well data set with a detect ed parameter in the current evaluation period.

A sufficient number of detected values are required to conduct a meaningful trend analysis. In this regard, baseline data sets with at least four data points were analyzed for trends, and a minimum of eight baseline data points were requ ired to conduct the controlSemi-Annual Statistical Review of Groundwater Monitoring Results 

### Methodology

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### chart analysis. Baseline data sets with more than 75 percent non-detects were exempted

from the statistical trend and control chart an alyses because of difficulties in numerically characterizing baseline conditions. The multiple lines of evidence used to identify trends in the groundwater analytical data ar e described in the following sections.

3.3.1 Time Series Plots

Time series plots were constr ucted for any parameter that wa s detected in at least one sampling period. The plots were used as a graphi cal complement to the statistical analysis
of trends, and in those case s where the data sets contai ned greater than 75 percent nondetects, served as the only analysis conducted. Non-detect values were plotted as 100 percent of the laboratory MDL. In addition, outliers identified during the baseline period were depicted on the time series plots for descriptive purposes.

3.3.2 Mann-Kendall Test for Trend

The non-parametric Mann-Kendall test for trend (Mann, 1945 and Kendall, 1975 in Gilbert, 1987) was conducted on the baseli ne data, in addition to the combined

baseline/current data sets for which no cont rol chart had been constructed (because the baseline data showed a significant tr end). The evaluation of the combined baseline/current data sets was conducted with ProUCL Version 4.1 (Singh, et al., 2010). The purpose of the test was to identify m onotonic increasing or decreasing trends in groundwater parameters.

The Mann-Kendall test is useful because missi ng values are allowed and the data do not need to conform to any parametric distributi on type. Furthermore, da ta that are below the MDL can be used by assigning them a common value that is lower than the lowest measured value in the data set. This appr oach is valid because the Mann-Kendall test only examines the relative magnitude (rank-order) of the data rather than the absolute

measured value.

The first step in the analysis involved ordering the data set by sampling event, x 1 

### , x 2 

### , to x n 

### (Singh, et al., 2010). Then, all of the possibl e differences between distinct pairs of measurements, ( x

j 

### – x i 

### ) were considered, for j > i . For each pair, the sign of the difference is computed (Gilbert, 1987) where:

ݏ݅݃݊	൫ݔ ௝ െ ݔ ௜ ൯ൌ൞ 1	݂݅	൫ݔ ௝ െ ݔ ௜ ൯൐0 0	݂݅	൫ݔ ௝ െ ݔ ௜ ൯ൌ0 െ1	݂݅	൫ݔ ௝ െ ݔ ௜ ൯൏0 ൢ



### The Mann-Kendall test statistic ( S ) is then calculated as follows (Gilbert, 1987): ܵ ൌ ෍ ෍ ݏ݅݃݊	൫ݔ

௝ 

### െ ݔ ௞ 

### ൯ ௡

௝ୀ௞ାଵ ௡ିଵ

௞ୀଵ



### When the sample size n was larger than 40, exact critical values for S are not readily available. However, as a sum of identically-distributed random quantities, the behavior of

S for larger n tends to approximate a normal distribu tion (Singh, et al., 2010). Therefore, a normal approximation to S can be used (Gilbert, 1987) using a Z -statistic. TheSemi-Annual Statistical Review of Groundwater Monitoring Results 

### Methodology

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### standardized Z -statistic is calculated by determining the expected mean and standard

deviation of S . The standard deviation of S is calculated where:

ݏ݀ ሾ ܵ ሿ ൌ ඩ

1

18 ቎݊

ሺ ݊െ1 ሻሺ 2݊ ൅ 5 ሻ െ෍ݐ

௝ 

### ൫ݐ ௝ 

### െ 1	൯൫2ݐ ௝ 

### ൅ 5൯ ௚

௝ୀଵ 

### ቏

and n is the sample size, g represents the number of groups of ties in the data set (if any),

and t j 

### is the number of ties in the j th 

### group of ties (Singh, et al ., 2010). If no ties or nondetects were present, the equati on is reduced to a simpler form:

ݏ݀ ሾ ܵ ሿ ൌ ඨ 1

18 ݊ ሺ ݊െ1 ሻሺ 2݊ ൅ 5 ሻ

Once the standard deviation of S has been derived, the standardized Z -statistic for a monotonic increasing or decreasing trend is calculated where:

ܼ ൌ ሺ| ܵ | െ 1 ሻ

ݏ݀ሾܵሿ

The Mann-Kendall test for trend was perf ormed in accordance with the following

conditions:

 

### If at least eight data points were availabl e and the detection rate was more than or equal to 25 percent, the non-parametric Mann-Kendall test was applied to

evaluate time trends.

 

### If the number of data points was less than eight, but at least f our, and the detection rate was greater than or equal to 25 percen t, the trend test was performed, but the results were considered to be prelim inary and used only for a qualitative

assessment. It should be noted that th e power of detecti ng a significant trend (upward or downward) was limited given the small number of data points. This applied to those wells currently in baseline period development.

 

### The trend test was not app lied if the number of data points was less than four

and/or if the detection rate was less than 25 percent. In this case, only the time series plots were used.

 

### When performing the trend test, data we re censored in regard to the MDL (or

median MDL of non-detects if differe nt MDLs existed between different sampling periods). Thus, by setting non-dete cts equal to a single (same) value, changes in the MDL did not influence the calculation of the Mann-Kendall

statistic.

Significance levels were re ported at the 0.01 alpha probabi lity level corresponding to a one-sided test (EPA, 2006; EPA, 2009), and the p -value was determined by looking up the corresponding p -value for the Mann-Kendall test statistic S for sample size less than or equal to 40, or by comparing the derived Z-statistic to the percentiles of standard normal distribution table for sample size great er than 40. The one-sided significance levelSemi-Annual Statistical Review of Groundwater Monitoring Results 

### Methodology

1H2013GWStatisticalRpt.docx 12

Fort Washington, PA 

### was reported because the hypothesis addre sses whether the trend is upwards or downwards. Two-sided significance levels were applied to those parameters for which no assumption was made regarding the direction of the trend, e.g., pH.

3.3.3 Control Charts

As defined, control charts are a graphical me thod of determining whether the current data behave differently from the historical baseline data, i.e., whether the current data point is out of control (OOC). Two types of contro l charts, including the Shewhart and CUSUM control chart procedures, were used to iden tify OOC parameters. The benefits of using both types of control charts are that the Shew hart is more effective at identifying current values that exhibit large a nd sudden shifts from historic al baseline conditions, whereas the CUSUM is more effective at identifying sm all but persistent changes in monitoring

data over time.

Parameters with baseline data sets that exhibited significant upward or downward MannKendall trends were excluded from the Shew hart-CUSUM analysis. In this regard, a requirement for a valid Shewhart-CUSUM analys is is that the mean value for a data set be statistically stable over time. Normality, i. e., not a significant de parture from a normal distribution, is another assumption of the Shewhart and CUSUM pr ocedures. A minimum of eight baseline data points, w ith a detection rate of more than or equal to 25 percent, was required to conduct the Shewhart -CUSUM control chart analysis.

The analytical data were determined to be OOC when (1) the current analytical data fell beyond the control limit, (2) the CUSUM value fell beyond the control li mit, or (3) both the current and CUSUM values fell beyond the control limit. The following sections describe the methods and assumptions associ ated with the Shewhart and CUSUM control chart procedures.

Shewhart Control Chart

The Shewhart procedure computes a value th at represents the control (or probability) limit for a given baseline data set and is base d upon the statistical distribution appropriate

to the chart. The Shewhart numerical control limit h was defaulted to a value of 5 (multiple of standard deviations ( σ ) above the mean [ ݔ̅ ([for a baseline sample size less than 12. If there were 12 or more baseline data points, h was set to 4, as recommended by the EPA (2009). The upper control limit ( h

u 

### ) was calculated where ݄

௨ 

### ൌ ݔ ̅ ൅݄∗ߪ , and the lower control limit ( h l 

### ) was calculated where ݄ ௟ 

### ൌ ݔ ̅ െ݄∗ߪ

. The typical interpretation of a control limit is th at a data point that falls within the limit is

considered to be in-control. An OOC conditi on occurs when the data point falls outside the limit. As it applies to this current anal ysis, data points that are assessed to be OOC represent a statistically significant departure from baseline conditions.

CUSUM Control Chart

CUSUM charts are built on the principle of Maximum Likelihood Estimation (MLE). As it applies here, the cumulative sum is not the cumulative sum of the values; rather, it represents the cumulative sum of differences between the observed monitoring period

values and the baseline arithmetic mean.Semi-Annual Statistical Review of Groundwater Monitoring Results 

### Methodology

1H2013GWStatisticalRpt.docx 13

Fort Washington, PA 

### The CUSUM control chart produces upper a nd lower cumulative sum charts for a parameter as a function of time. The control limit ( h ) was set at either 4 or 5 standard deviations as previously discussed. The parameter K is referred to as the reference value and is typically set to be equal to half of th e distance from the target and the shifted mean that is of interest. These control chart parame ters established expected ranges for baseline parameter values and were used to iden tify statistically significant but gradual groundwater parameter increases and decreases.

When testing for groundwater parameter in creases only, there was a probability of approximately 6.7 percent that any subsequent data point would contribute positively to
the CUSUM statistic, even when there had been no real increase from the baseline level. This was based on using a K value of 1 (a shift of 1 σ ) where n < 12, or 0.75 (a shift of

0.75 σ ) where n ≥ 12. A modification to the cumulative sums K parameter was made to normalize the procedure for simultaneously test ing significant shifts including increases and decreases for certain parameters, i.e., a two-sided evaluation. Specifically, when testing for positive and negative shifts from the baseline level, K was adjusted from 1 to 1.14 (or from 0.75 to 0.92, for n ≥ 12). This adjustment was necessary to normalize the “two-sided” CUSUM response with the one-sid ed version when no baseline changes had

occurred in either version of the test.

The CUSUM was calculated where ܥܷܷܵܯ ൌ ݔ ̅ ൅ܵ ௜ 

### ∗ ߪ , and ݔ̅ represents the
arithmetic mean, S i 

### represents the cumulative sum, and sigma ( σ ) represents the standard

deviation of the baseline data set. In those instances wher e the testing of a one-sided CUSUM response was of interest, if the shif t from baseline to be detected was an
increase, the upper CUSUM computed for the i th subgroup was ܵ ௜ 

### ൌ ݉ܽݔ൫0, ܵ ௜ିଵ 

### ൅ ሺ ݖ ௜ 

### െ ݇ ሻ ൯ , where ݖ ௜ 

### ൌ ሺ ܿ݋݊ܿ. െݔ ̅ ሻ /ߪ . If the shift to be detected was a decrease, the lower

CUSUM computed for the i th subgroup was ܵ ௜ 

### ൌ ݉ܽݔ൫0, ܵ ௜ିଵ 

### ൅ ሺ ݖ ௜ 

### ൅ ݇ ሻ ൯ . When a
current CUSUM value exceeded the upper contro l limit, the value was determined to be

OOC.Semi-Annual Statistical Review of Groundwater Monitoring Results 

### Results

1H2013GWStatisticalRpt.docx 14

Fort Washington, PA 

# 4.0 Results

A total of 808 individual well parameter data sets was evalua ted during the first half of 2013. Certain parameters currently exhibit e ither an increasing or decreasing trend. Overall, while statistically significant in some instances, the trends are subtle with little period-to-period variation. Many groundwater parameters , however, exhibit random fluctuation which supports H

o 

### , i.e., no trend or no signifi cant departure from the baseline conditions. Certain parameters were also de termined to be OOC based upon either the
measured concentration or the CUSUM, indi cating a departure from baseline conditions. Results are summarized by monitoring program in the following sections.



## 4.1 Closure and Post-Closure Grou ndwater Monitoring Program for the A, B, and C Basins

Forty-nine groundwater parame ter and monitoring well comb inations were evaluated during this period. A narrative summary of the statistical anal ysis results is presented by monitoring well in Appendix A along with detailed descriptive baseline statistics, statistical test results, time series plots, a nd control charts. A summary of the statistically significant results is pr esented in Table 2.

Statistically significant results were reported for 17 well-parameter data sets across seven wells. Five well-parameter data sets had st atistically significant downward trends, and four exhibited upward trends. Either the measur ed value or the CUSUM for nine data sets

across five wells was observed to be OOC. Constituents determined to be OOC include dissolved oxygen, total organic carbo n, specific conductance, and redox.



## 4.2 Secure C Landfill Corrective Action Program

A total of 155 unique groundwater parame ter and monitoring well data sets was evaluated under the current monitoring progr am. A narrative summary of the statistical analysis results is presented by monitori ng well in Appendix B along with detailed descriptive baseline stat istics, statistical test results, time series plots, and control charts. A summary of the statistically signifi cant results is presented in Table 3.

Statistically significant results were identifie d in 24 monitoring well da ta sets across four wells. Specifically, eight data sets exhibi ted upward trends for parameters, including
chlorobenzene, 1,2-dichlorobenzene, chloride , total organic carbon, total organic halogen, dissolved oxygen, specific conductance, and pH. Eight data sets exhibited downward trends, including total organic carbon, tota l organic halogen, n-nitrosodimethylamine,
sodium, and sulfate. Either the measured value or the CUSUM fo r eight well parameter data sets was determined to be OOC, including 4-chloroaniline, o-toluidine, lead, total phenols, aluminum, and sodium.



## 4.3 Secure C Landfill Detection Monitoring Program

A total of 136 unique groundwater parame ter and monitoring well data sets was evaluated under the current monitoring progr am. A narrative summary of the statistical analysis results is presented by monitori ng well in Appendix C along with detailedSemi-Annual Statistical Review of Groundwater Monitoring Results 

### Results

1H2013GWStatisticalRpt.docx 15

Fort Washington, PA 

### descriptive baseline stat istics, statistical test results, time series plots, and control charts. A summary of the statistically signifi cant results is presented in Table 4.

Statistically significant results were identifie d in 20 monitoring well da ta sets across three wells. In this regard, a total of six data sets exhibited upward trends for parameters, including sodium, total orga nic carbon, and chloride, with two data sets exhibiting decreasing trends. Parameters that exhibit d ecreasing trends include nitrate and dissolved oxygen. Either the measured value or the CU SUM for 12 well parameter data sets were determined to be OOC for the following pa rameters: arsenic, specific conductance, aluminum, dissolved oxygen, tota l organic halogen, and sodium.



## 4.4 PFOA Monitoring Program

A total of 468 unique groundwater parame ter and monitoring well data sets was evaluated under the current monitoring program . This total does not reflect monitoring
well J10-M01B, which has been discontinue d. A narrative summary of the statistical analysis results is presented by monitori ng well in Appendix D along with detailed descriptive baseline stat istics, statistical test results, time series plots, and control charts. A summary of the statistically signifi cant results is presented in Table 5.

Statistically significant results were identif ied in 55 monitoring we ll data sets across 25 wells. Specifically, seven data sets exhibited upward trends for parameters, including perfluorododecanoic acid, PFOS, perfluoroheptanoic aci d, perfluorohexanoic acid, perfluorobutanoic acid, and perfluoropentanoic acid, with three data sets exhibiting

downward trends. Parameters that exhib it downward trends in clude perfluorobutane sulfonic acid, perfluoropentanoic acid, and PFOA.

Either the measured value or the CUSU M was determined to be OOC for 46 well parameter data sets. Parameters that ar e OOC include perfluorobutane sulfonic acid, PFOS, perfluorobutanoic acid, perfluorohept anoic acid, PFOA, perfluorododecanoic acid, perfluorodecanoic acid, perfluorohexa noic acid, and perfluoundecanoic acid.Semi-Annual Statistical Review of Groundwater Monitoring Results 

### Summary and Conclusions

1H2013GWStatisticalRpt.docx 16

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# 5.0 Summary and Conclusions

This report describes statistical analyses conducted on groundwater analytical data collected at the complex from 1989 to Janua ry 2013. The objective of the statistical analysis is to evaluate current groundwater quality data for in creasing or decreasing trends and whether there are significant sh ifts from historical baseline levels.

The monitoring program for the first half of 2013 was effective at identifying subtle departures from historical ba seline conditions. In large part , the monitoring program has demonstrated that most parameters in a la rge proportion of the monitoring wells have either exhibited a random pattern or were detected below the laboratory detection limit. A

smaller subset of wells and constituents has exhibited statistically significant differences from baseline levels, including subtle upward and downward trends during the monitoring period. These wells and constitu ents will continue to be monitored.Semi-Annual Statistical Review of Groundwater Monitoring Results 

### References

1H2013GWStatisticalRpt.docx 17

Fort Washington, PA 

# 6.0 References

ASTM. 1998. “Standard Guide for Developing Appropriate Statistical Approaches for Ground-Water Detection Monitoring Programs.” ASTM Guide D6312-98.

EPA. 2009. Statistical Analysis of Groundwat er Monitoring Data at RCRA Facilities – Unified Guidance. EPA 530-R-09-007.

EPA. 2006. Data Quality Assessment: Statistical Methods for Practitioners (EPA QA/G9S). Office of Environmental Informati on, U.S. Environmental Protection Agency, Report No. EPA/240/B-06/003.

Gilbert, R.O. 1987. Statistical Methods fo r Environmental Pollution Monitoring. Van

Nostrand Reinhold. New York.

Helsel, Dennis R. 2005. Non-detects and Data Analysis. John Wiley & Sons, Inc., Hoboken, New Jersey.

Kaplan, E.L. and Meier, O. 1958. Nonparametric Estimation from Incomplete

Observations . Journal of the American Stat istical Association, Vol. 53. 457-481.

Singh, A., Armbya, N., and Singh, A.K. 2010. ProUCL Version 4.1 User Guide. Office of Research and Development, U.S. Environmental Protection Agency, Report No. EPA/600/R-07/041. May 2010

Singh, A., R. Maichle, A.K. Singh, and S.E. Lee. 2007. ProUCL Version 4.0 User Guide.

Office of Research and De velopment, U.S. Environmental Protection Agency, Report No. EPA/600/R-07/038.

Singh, A. and A.K. Singh. 2007. ProUCL Version 4.0 Technical Guide. Office of Research and Development, U.S. Envi ronmental Protection Agency, Report No.

EPA/600/R-07/041.

Singh, A., R. Maichle, A.K. Singh, and S.E. Lee. 2006. On the Computation of a 95% Upper Confidence Limit of the Unknown P opulation Mean Based Upon Data Sets

with Below Detection Limit Observations . Office of Research and Development, U.S. Environmental Protection Ag ency, Report No. EPA/600/R-06/022.

# Tables8/21/2013 Page 1 of 1 1H13-GW-StatisticalRpt-Tables.docx 

### Table 1 Summary of Baseline and Current Monitoring Periods

1 st 

### Half of 2013

Semi-Annual Statistical Review of Groundwater Monitoring Results

DuPont Chambers Works August 2013

Monitoring Program Baseline Period Monitoring Period

Begin End Begin End

Closure and Post Closure for the A, B, & C Basins 1/1/1989 12/31/2006 1/1/2007 Current

All Perimeter Monitoring Programs 1/1/1989 12/31/2008 1/1/2009 Current

Exceptions:

C10-M03B, C11-M03B, F16-M01B Earliest Dates 12/31/2010 1/1/2011 Current

Secure C Landfill Corrective Action 1/1/1989 12/31/2007 1/1/2008 Current

Exceptions:

P21-M04B 1/1/2009 12/31/2012 1/1/2013 Current

P21-R01B 1/1/2008 12/31/2011 1/1/2012 Current

Secure C Landfill Detection 1/ 1/1989 12/31/2007 1/1/2008 Current

Post Closure Monitoring for RCRA Un its 7/1/2003 12/31/2010 1/1/2011 Current

PFOA 1/1/2003 12/31/2010 1/1/2011 Current

Exceptions:

J10-M02B (currently in baseline development) 1/1/2011 12/31/2014 1/1/2015 -8/21/2013 Page 1 of 1 1H13-GW-StatisticalRpt-Tables.docx 

### Table 2 Summary of Statistically Significant Results: Closure and Post-Closure of A, B, and C Basins Program

1 st 

### Half of 2013

Semi-Annual Statistical Review of Groundwater Monitoring Results

DuPont Chambers Works August 2013

Well Analyte Type Analyte Units Current Result (Jan 2013) Trend Test

Results Current

Value/CUSUM

Out of

Control?

G16-M02B (6) Field pH Std. Units 5.4 Upward
-

H13-M02B (5) Indicators Total Organic Halogen mg/L 3.5 Upward
-

H13-M02B (6) Field Dissolved Oxygen mg/L 0.37 Downward
-

H13-M02B (6) Field pH Std. Units 6.52 Downward
-

H14-M01B (6) Field Specific Conductance μ mhos/cm 9106 Downward
-

J16-M01B (5) Indicators Total Organic Carbon mg/L 9 Downward
-

J16-M01B (6) Field Specific Conductance μ mhos/cm 810 Downward
-

K13-M02B (6) Field pH Std. Units 6.31 Upward
-

L14-M01B (6) Field pH Std. Units 7.03 Upward
-

G16-M02B (6) Field Dissolved Oxygen mg/L 0.43 - Yes

H16-P01B (5) Indicators Total Organic Carbon mg/L 120 - Yes

H16-P01B (6) Field Dissolved Oxygen mg/L 0.26 - Yes

J16-M01B (6) Field Dissolved Oxygen mg/L 0.32 - Yes

K13-M02B (6) Field Dissolved Oxygen mg/L 0.27 - Yes

L14-M01B (6) Field Dissolved Oxygen mg/L 0.5 - Yes

L14-M01B (6) Field Redox (Field) mV -87.5 - Yes

L14-M01B (6) Field S pecific Conductance μ mhos/cm 1621 - Yes

Notes: “Trend Test Result” is only shown when a significant upw ard or downward trend was detected in the combined baseline/curr ent data by the Mann-Kendall trend test. An out-of-control (OOC) condition was present when the current result or the current CUSUM
exceeded the control limit, which is shown as “Yes” under the “Current Value/CUSUM out of Control?” column; ND: not detected.8/21/2013 Page 1 of 1 1H13-GW-StatisticalRpt-Tables.docx 

### Table 3 Summary of Statistically Significant Results: Secure C Landfill Corrective Action Program

1 st 

### Half of 2013

Semi-Annual Statistical Review of Groundwater Monitoring Results

DuPont Chambers Works August 2013

Well Analyte Type Analyte Units Current Result (Jan 2013) Trend Test

Results Current

Value/CUSUM

Out of

Control?

P21-M04B (4) Metals/Inorganics Sodium mg/l 100 Downward
-

P21-M04B (4) Metals/Inorganics Sulfate mg/l 121 Downward
-

P21-R01B (1) VOCs Chlorobenzene mg/l 0.004 Upward
-

P21-R01B (2) SVOCs 1,2-Dichlorobenzene mg/l 0.003 Upward
-

P21-R01B (4) Metals/Inorganics Sodium mg/l 73.55 Downward
-

P21-R01B (4) Metals/Inorganics Sulfate mg/l 190.5 Downward
-

Q20-M02B (4) Metals/Inorganics Chloride mg/l 237 Upward
-

Q20-M02B (5) Indicators Total Organic Carbon mg/l 5.9 Upward
-

Q20-M02B (5) Indicators Total Organic Halogen mg/l 0.12 Upward
-

Q20-M02B (6) Field Dissolved Oxygen mg/l 8.41 Upward
-

Q20-M02B (6) Field Specific Conductance μ mhos/cm 1,255 Upward
-

Q21-M01B (2) SVOCs N-Nitrosodimethylamine mg/l ND<0.002 Downward
-

Q21-M01B (4) Metals/Inorganics Sulfate mg/l 64.1 Downward
-

Q21-M01B (5) Indicators Total Organic Carbon mg/l 28.7 Downward
-

Q21-M01B (5) Indicators Total Organic Halogen mg/l 0.14 Downward
-

Q21-M01B (6) Field pH Std. units 6.48 Upward
-

P21-M01B (2) SVOCs 4-Chloroaniline mg/l 4.5 - Yes

P21-M01B (2) SVOCs O-Toluidine mg/l 1.7 - Yes

P21-M01B (4) Metals/Inorganics Aluminum mg/l 1.19 - Yes

P21-M01B (4) Metals/Inorganics Lead mg/l 0.0129 - Yes

P21-M01B (5) Indicators Total Phenols mg/l 1.5 - Yes

Q20-M02B (4) Metals/Inorganics Sodium mg/l 116 - Yes

Q21-M01B (4) Metals/Inorganics Aluminum mg/l 0.363 - Yes

Q21-M01B (4) Metals/Inorganics Sodium mg/l 164 - Yes

Notes: “Trend Test Result” is only shown when a significant upward or downward trend was detected in the combined baseline/current data by the Mann-Kendall trend test. An out-of-cont rol (OOC) condition was present when the current result or the
current CUSUM exceeded the control limit, which is shown as “Yes ” under the “Current Value/CUSUM out of Control?” column. ND

indicates “not detected” above th e laboratory method detection limit.8/21/2013 Page 1 of 1 1H13-GW-StatisticalRpt-Tables.docx 

### Table 4 Summary of Statistically Significant Results: Secure C Landfill Detection Monitoring Program

1 st 

### Half of 2013

Semi-Annual Statistical Review of Groundwater Monitoring Results

DuPont Chambers Works August 2013

Well Analyte Type Analyte Units Current Result (Jan 2013) Trend Test

Results Current

Value/CUSUM

Out of

Control?

R19-M01B (4) Metals/Inorganics Sodium mg/l 55.7 Upward
-

R19-M01B (5) Indicators Total Organic Carbon mg/l 8.3 Upward
-

S19-M01B (4) Metals/Inorganics Chloride mg/l 34.2 Upward
-

S19-M01B (4) Metals/Inorganics Sodium mg/l 17.1 Upward
-

S19-M01B (6) Field Dissolved Oxygen mg/l 0.88 Downward
-

S19-M02B (4) Metals/Inorganics Chloride mg/l 147 Upward
-

S19-M02B (4) Metals/Inorganics Nitrate mg/l 0.73 Downward
-

S19-M02B (5) Indicators Total Organic Carbon mg/l 0.63 Upward
-

R19-M01B (4) Metals/Inorganics Arsenic mg/l 0.0016 - Yes

R19-M01B (5) Indicators Total Organic Halogen mg/l 0.13 - Yes

R19-M01B (6) Field Specific Conductance μ mhos/cm 1,181 - Yes

R19-M02B (4) Metals/Inorganics Aluminum mg/l 0.0947 - Yes

R19-M02B (5) Indicators Total Organic Halogen mg/l 0.051 - Yes

S19-M01B (4) Metals/Inorganics Aluminum mg/l 0.111 - Yes

S19-M01B (5) Indicators Total Organic Halogen mg/l 0.11 - Yes

S19-M01B (6) Field Specific Conductance μ mhos/cm 485 - Yes

S19-M02B (4) Metals/Inorganics Sodium mg/l 39.3 - Yes

S19-M02B (5) Indicators Total Organic Halogen mg/l 0.028 - Yes

S19-M02B (6) Field Dissolved Oxygen mg/l 1.09 - Yes

S19-M02B (6) Field Specific Conductance μ mhos/cm 827 - Yes

Notes: “Trend Test Result” is only shown when a significant upw ard or downward trend was detected in the combined baseline/curr ent data by the Mann-Kendall trend test. An out-of-control (OOC) condit ion was present when the current result or the current CUSUM
exceeded the control limit, which is s hown as “Yes” under the “Current Value/CUSUM out of Control?” column.8/21/2013 Page 1 of 2 1H13-GW-StatisticalRpt-Tables.docx 

### Table 5 Summary of Statistically Significant R esults: PFOA Monitoring Program

1 st 

### Half of 2013

Semi-Annual Statistical Review of Groundwater Monitoring Results

DuPont Chambers Works August 2013

Well Analyte Type Analyte Units Current Result (Jan 2013) Trend Test Results Current

Value/CUSUM

Out of

Control?

C11-M03B (8) PFCs Perfluorobutane Sulfonic Acid mg/L 0.0000051 Downward
-

C11-M03B (8) PFCs Perfluoropentanoic Acid mg/L 0.00022 Downward
-

D06-M01B (8) PFCs Perfluorododecanoic Acid mg/L 0.000029 Upward
-

D06-M01B (8) PFCs PFOS mg/L 0.000019 Upward
-

G04-M01E (8) PFCs PFOA mg/L 0.0000051 Downward
-

L09-M01B (8) PFCs Perfluorononanoic Acid mg/L 0.00041 Upward
-

N08-M01C (8) PFCs Perfluoroheptanoic Acid mg/L 0.002 Upward
-

N08-M01D (8) PFCs Perfluorohexanoic Acid mg/L 0.0013 Upward
-

P06-M01E (8) PFCs Perfluorobutanoic Acid mg/L 0.000096 Upward
-

P06-M01E (8) PFCs Perfluoropentanoic Acid mg/L 0.000072 Upward
-

AA22-M01B (8) PFCs Perfluorobutanoic Acid mg/L 0.00033 - Yes

AA22-M01B (8) PFCs Perfluoroheptanoic Acid mg/L 0.00063 - Yes

AA25-M01B (8) PFCs Perfluorobutanoic Acid mg/L 0.000077 - Yes

C08-M01B (8) PFCs Perfluorobutane Sulfonic Acid mg/L 0.00039 - Yes

C11-M02D (8) PFCs Perfluoroundecanoic Acid mg/L 0.000018 - Yes

C11-M02D (8) PFCs PFOS mg/L 0.000042 - Yes

C11-M03B (8) PFCs Perfluorododecanoic Acid mg/L 0.0000095 - Yes

F08-M01A (8) PFCs Perfluorobutanoic Acid mg/L 0.41 - Yes

F08-M01A (8) PFCs Perfluorododecanoic Acid mg/L 0.000078 - Yes

F08-M01B (8) PFCs Perfluorobutanoic Acid mg/L 0.0025 - Yes

F08-M01B (8) PFCs Perfluorododecanoic Acid mg/L 0.00019 - Yes

G05-M02B (8) PFCs Perfluorodecanoic Acid mg/L 0.0013 - Yes

G09-M01A (8) PFCs Perfluorodecanoic Acid mg/L 0.12 - Yes

G09-M01A (8) PFCs Perfluorohexanoic Acid mg/L 0.34 - Yes

J05-M01C (8) PFCs Perfluorodecanoic Acid mg/L ND<0.00000099 - Yes

K12-M01A (8) PFCs Perfluorodecanoic Acid mg/L 0.0012 - Yes

K12-M01A (8) PFCs PFOA mg/L 0.06 - Yes

L09-M01B (8) PFCs Perfluorobutane Sulfonic Acid mg/L 0.00058 - Yes

L09-M01B (8) PFCs Perfluorobutanoic Acid mg/L 0.00035 - Yes

L09-M01B (8) PFCs Perfluorohexanoic Acid mg/L 0.002 - Yes

L09-M01B (8) PFCs PFOA mg/L 0.0026 - Yes

L09-M01C (8) PFCs Perfluoroundecanoic Acid mg/L 0.0000089 - Yes8/21/2013 Page 2 of 2 1H13-GW-StatisticalRpt-Tables.docx 

### Table 5 Summary of Statistically Significant R esults: PFOA Monitoring Program

1 st 

### Half of 2013

Semi-Annual Statistical Review of Groundwater Monitoring Results

DuPont Chambers Works August 2013

Well Analyte Type Analyte Units Current Result (Jan 2013) Trend Test Results Current

Value/CUSUM

Out of

Control?

L09-M01C (8) PFCs PFOS mg/L 0.000024 - Yes

L09-M01D (8) PFCs Perfluoroheptanoic Acid mg/L 0.0051 - Yes

L09-M01D (8) PFCs Perfluorohexanoic Acid mg/L 0.0069 - Yes

L09-M01D (8) PFCs Perfluorononanoic Acid mg/L 0.00047 - Yes

N08-M01B (8) PFCs Perfluorobutanoic Acid mg/L 0.00031 - Yes

N08-M01B (8) PFCs Perfluoroundecanoic Acid mg/L 0.0000079 - Yes

N08-M01C (8) PFCs Perfluorobutane Sulfonic Acid mg/L 0.000031 - Yes

N08-M01C (8) PFCs Perfluorodecanoic Acid mg/L 0.0003 - Yes

N08-M01C (8) PFCs Perfluoroundecanoic Acid mg/L 0.00019 - Yes

N08-M01C (8) PFCs PFOS mg/L 0.000045 - Yes

N08-M01D (8) PFCs Perfluoroheptanoic Acid mg/L 0.0012 - Yes

P06-M01D (8) PFCs Perfluorodecanoic Acid mg/L ND<0.00000093 - Yes

P06-M01D (8) PFCs Perfluoroheptanoic Acid mg/L 0.0000062 - Yes

P06-M01D (8) PFCs Perfluorononanoic Acid mg/L ND<0.00000093 - Yes

P06-M01D (8) PFCs Perfluoroundecanoic Acid mg/L 0.0000089 - Yes

P06-M01E (8) PFCs Perfluoroheptanoic Acid mg/L 0.000049 - Yes

P06-M01E (8) PFCs Perfluorononanoic Acid mg/L 0.0000051 - Yes

P06-M01E (8) PFCs PFOA mg/L 0.000057 - Yes

P06-M02C (8) PFCs Perfluorononanoic Acid mg/L 0.000043 - Yes

R09-M02B (8) PFCs Perfluorobutanoic Acid mg/L 0.00044 - Yes

R09-M02B (8) PFCs Perfluorononanoic Acid mg/L 0.000345 - Yes

R09-M02B (8) PFCs Perfluoropentanoic Acid mg/L 0.0011 - Yes

R10-M01C (8) PFCs Perfluorobutanoic Acid mg/L 0.00012 - Yes

R10-M01C (8) PFCs PFOA mg/L 0.00042 - Yes

Z28-M01B (8) PFCs PFOS mg/L 0.00000935 - Yes

Notes: “Trend Test Result” is only shown when a significant upward or downward trend was detected in the combined baseline/current data by the Mann-Kendall trend test. An out-of-cont rol (OOC) condition was present when the current result or the
current CUSUM exceeded the control limit, hich is shown as “Yes ” under the “Current Value/CUSUM out of Control?” column; ND

indicates “not detected” above th e laboratory method detection limit.

# Appendices

# Appendix A

Statistical Evaluation Results, Time-Series Plots, and Control Chart Analysis for the Closure and Post-Closure of A, B, and C Basins ProgramDuPont Chambers Works Complex Semi-Annual Statistical Review of Groundwater Monitoring Results

1 st Half 2013 

### Appendix A

Appendix A Closure and Post Closure for the A, B, and C Basins A-1

Fort Washington, PA 

# Narrative Well Summary: Closure and Post Closure for the A, B, and C Basins

G16-M02B

The Mann-Kendall evaluation of the combined ba seline/current data sets indicates that pH is increasing. The control chart analysis indicates that diss olved oxygen (CUSUM) is

out-of-control.

H13-M02B

A statistically significant incr easing trend was observed for total organic halogen in the

baseline and combined baseline/current m onitoring periods. Decreasing trends were confirmed for dissolved oxygen and pH. The cont rol chart analysis i ndicates that none of

the current/CUSUM values are out-of-control.

H14-M01B

The Mann-Kendall analysis of the combined baseline/current results indicates that specific conductance is trending downwards. Th e control chart analysis indicates that

none of the current/CUSUM values are out-of-control.

H16-P01B
No statistically significant increasing or decreasing trends were observed. Two

constituents were determined to be ou t-of-control, including total organic carbon (CUSUM) and dissolved oxygen (CUSUM).

J16-M01B

Total organic carbon and specific conductance are trending downwards. The control chart analysis indicates that dissolved oxygen (CUSUM) is out-of-control.

K13-M02B

Parameters including pH are trending upwards. The control chart analysis indicates that dissolved oxygen (CUSUM) is out-of-control.

L14-M01B

An upward trend was confirmed for pH. Dissolved oxygen (CUSUM), redox (CUSUM), and specific conductance (CUSUM) were de termined to be out-of control.STATISTICAL EVALUATION RESULTS FOR THE CLOSURE AND POST-CLOSURE OF A, B, C BASINS PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMinDetectedMaxDetectedMin MDL ofNDsMax MDLof NDsMean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControlLimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesG16-M02B (5) Indicators T TOTAL ORGANIC CARBON MG/L 1/12/1995 7/5/2006 24 0 100% 0 7.6 71 - - 24.7 16.7 68 -59 0.076 No Trend 16 - 91.6 NoG16-M02B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 1/12/1995 7/5/2006 22 0 100% 3 6.19 32.1 - - 13.9 7.9 57 23 0.270 No Trend 1.2 - 45.5 NoG16-M02B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 1/12/1995 7/5/2006 24 0 100% 1 1.4 4.4 - - 2.72 0.62 23 -53 0.100 No Trend 0.43 0.222 -YesG16-M02B (6) Field T PH STD UNITS 1/12/1995 1/17/2006 24 0 100% 1 4.77 6.02 - - 5.41 0.32 6 127 0.001Upward5.4 - - -Upward trend for all dataG16-M02B (6) Field T REDOX (FIELD) MV 1/12/1995 7/5/2006 23 0 100% 0 -212.5 362.1 - - 70.5 129.9 184 9 0.417 No Trend 86.6 -449 590 NoG16-M02B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 1/12/1995 7/5/2006 25 0 100% 0 76.1 2830 - - 1426 848 59 -26 0.282 No Trend 2236 - 4819 NoG16-M02B (6) Field T TEMPERATURE (FIELD) DEGREES C 1/12/1995 7/5/2006 25 0 100% 0 8.4 19.3 - - 14.3 3.3 23 -17 0.355 No Trend 13.97 1.18 27.5 NoH13-M02B (5) Indicators T TOTAL ORGANIC CARBON MG/L 1/16/1989 7/5/2006 47 0 100% 0 1 67.4 - - 28.0 19.9 71 178 0.052 No Trend 15 - 107 NoH13-M02B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 1/16/1989 7/5/2006 46 0 100% 1 0.028 28.4 - - 6.45 7.26 113 372 0.000Upward3.5 - - -Upward trend for all dataH13-M02B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 9/17/1993 7/5/2006 29 0 100% 2 0.85 4.2 - - 2.19 0.80 36 -177 0.001Downward0.37 - - -Downward trend for all dataH13-M02B (6) Field T PH STD UNITS 1/16/1989 7/5/2006 40 0 100% 5 6.37 7.49 - - 6.86 0.27 4 -298 0.000Downward6.52 - - -Downward trend for all dataH13-M02B (6) Field T REDOX (FIELD) MV 7/17/1995 7/5/2006 22 0 100% 1 -222.7 63.3 - - -49.6 65.6 -132 -43 0.120 No Trend -108 -312 213 NoH13-M02B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 1/16/1989 7/5/2006 38 0 100% 7 113.6 4430 - - 1871 1192 64 22 0.397 No Trend 2680 - 6639 NoH13-M02B (6) Field T TEMPERATURE (FIELD) DEGREES C 9/17/1993 7/5/2006 31 0 100% 0 9.4 24.5 - - 16.1 3.3 20 -54 0.185 No Trend 16.28 3.01 29.1 NoH14-M01B (5) Indicators T TOTAL ORGANIC CARBON MG/L 1/16/1989 7/5/2006 47 0 100% 0 5 60.3 - - 30.1 14.4 48 -345 0.001Downward40 - - -No trend for all dataH14-M01B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 1/16/1989 7/5/2006 44 0 100% 3 0.26 7.58 - - 2.66 1.85 69 -85 0.198 No Trend 2.7 B - 10.0 NoH14-M01B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 9/16/1993 7/5/2006 29 0 100% 2 0.84 3.3 - - 1.83 0.61 33 -85 0.058 No Trend 0.49 -0.607 - NoH14-M01B (6) Field T PH STD UNITS 1/16/1989 7/5/2006 45 0 100% 0 5.92 7.37 - - 6.49 0.30 5 149 0.074 No Trend 6.3 5.28 7.69 NoH14-M01B (6) Field T REDOX (FIELD) MV 1/12/1995 7/5/2006 22 0 100% 1 -242.8 216.9 - - -38.4 85.8 -223 -15 0.348 No Trend -80.2 -382 305 NoH14-M01B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 1/16/1989 7/5/2006 45 0 100% 0 230 30000 - - 10479 8531 81 -388 0.000Downward9106 - - -Downward trend for all dataH14-M01B (6) Field T TEMPERATURE (FIELD) DEGREES C 9/16/1993 7/5/2006 30 0 100% 1 10.9 18 - - 15.5 1.9 12 -93 0.051 No Trend 16.11 7.87 23.1 NoH16-P01B (5) Indicators T TOTAL ORGANIC CARBON MG/L 7/17/1995 7/5/2006 23 0 100% 1 16.4 99.4 - - 37.8 24.7 65 42 0.140 No Trend 120 - 137YesH16-P01B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 1/12/1995 7/5/2006 24 0 100% 0 0.66 80 - - 15.5 23.0 149 27 0.260 No Trend 25 B - 107 NoH16-P01B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 1/12/1995 7/5/2006 22 0 100% 3 0.5 3.57 - - 2.30 0.79 34 -3 0.478 No Trend 0.26 -0.840 -YesH16-P01B (6) Field T PH STD UNITS 1/12/1995 7/5/2006 25 0 100% 0 5.03 7.21 - - 6.26 0.45 7 -16 0.364 No Trend 5.82 4.48 8.05 NoH16-P01B (6) Field T REDOX (FIELD) MV 1/12/1995 7/5/2006 23 0 100% 0 -290.2 242.3 - - -20.8 103.4 -498 -5 0.458 No Trend -2.5 -434 393 NoH16-P01B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 1/12/1995 7/5/2006 25 0 100% 0 55.6 2300 - - 1147 637 56 -56 0.101 No Trend 1292 - 3695 NoH16-P01B (6) Field T TEMPERATURE (FIELD) DEGREES C 1/12/1995 7/5/2006 25 0 100% 0 4.6 22.1 - - 14.7 4.4 30 -33 0.228 No Trend 14.64 -3.12 32.4 NoJ16-M01B (5) Indicators T TOTAL ORGANIC CARBON MG/L 4/3/1989 7/5/2006 46 0 100% 0 4.2 27.3 - - 11.2 5.2 47 -307 0.002Downward9 ---Downward trend for all dataJ16-M01B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 4/3/1989 7/5/2006 43 2 95% 3 0.0288 1.01 0.02 0.035 0.295 0.253 86 -178 0.032 No Trend 0.46 B - 1.31 NoJ16-M01B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 6/17/1993 7/5/2006 32 0 100% 2 0.74 5 - - 2.10 1.00 48 -60 0.171 No Trend 0.32 -1.90 -YesJ16-M01B (6) Field T PH STD UNITS 4/3/1989 7/5/2006 47 0 100% 0 6.5 7.93 - - 7.09 0.31 4 168 0.063 No Trend 7 5.85 8.33 NoJ16-M01B (6) Field T REDOX (FIELD) MV 7/14/1995 7/5/2006 21 0 100% 2 -167.9 -17.8 - - -89.7 39.8 -44 -8 0.417 No Trend -132 -249 69.5 NoJ16-M01B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 4/3/1989 7/5/2006 46 0 100% 1 70.4 2320 - - 1009 567 56 -408 0.000Downward810 - - -Downward trend for all dataJ16-M01B (6) Field T TEMPERATURE (FIELD) DEGREES C 6/17/1993 7/5/2006 34 0 100% 0 6.6 24.5 - - 15.8 4.3 28 -32 0.324 No Trend 14.28 -1.59 33.1 NoK13-M02B (5) Indicators T TOTAL ORGANIC CARBON MG/L 3/7/1990 7/5/2006 44 0 100% 0 16 264 - - 123 58 47 151 0.065 No Trend 44 - 356 NoK13-M02B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 3/7/1990 7/5/2006 44 0 100% 0 1.15 71.9 - - 33.3 16.7 50 196 0.024 No Trend 15 - 100 NoK13-M02B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 9/16/1993 7/5/2006 30 0 100% 1 1.05 5.4 - - 2.68 1.17 44 -95 0.047 No Trend 0.27 -2.00 -YesK13-M02B (6) Field T PH STD UNITS 6/4/1990 7/5/2006 42 0 100% 0 5.82 7.17 - - 6.45 0.33 5 264 0.002Upward6.31 - - -Upward trend for all dataK13-M02B (6) Field T REDOX (FIELD) MV 7/17/1995 7/5/2006 21 0 100% 2 -120.9 78.9 - - -46.8 46.8 -100 22 0.265 No Trend -66.1 -234 140 NoK13-M02B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 6/4/1990 7/5/2006 42 0 100% 0 77.3 4050 - - 1718 1087 63 -166 0.037 No Trend 1803 - 6065 NoK13-M02B (6) Field T TEMPERATURE (FIELD) DEGREES C 9/16/1993 7/5/2006 30 0 100% 1 8 19.4 - - 15.2 2.9 19 1 0.500 No Trend 15.45 3.76 26.6 NoL14-M01B (5) Indicators T TOTAL ORGANIC CARBON MG/L 7/14/1989 7/5/2006 44 0 100% 1 2 85 - - 28.1 25.8 92 -284 0.002Downward93 - - -No trend for all dataL14-M01B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 7/14/1989 7/5/2006 45 0 100% 0 0.0194 25.2 - - 6.48 7.25 112 -213 0.019 No Trend 17 B - 35.5 NoL14-M01B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 9/17/1993 7/5/2006 27 0 100% 5 1.12 3.27 - - 2.20 0.61 28 -36 0.234 No Trend 0.5 -0.240 -YesL14-M01B (6) Field T PH STD UNITS 7/14/1989 7/5/2006 45 0 100% 0 5.87 7.74 - - 6.52 0.38 6 373 0.000Upward7.03 - - -Upward trend for all dataL14-M01B (6) Field T REDOX (FIELD) MV 7/14/1995 7/5/2006 21 0 100% 2 -134.6 25.2 - - -35.2 33.7 -96 12 0.371 No Trend -87.5 -170 99.6YesL14-M01B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 7/14/1989 7/5/2006 44 0 100% 1 95.4 1629 - - 653 317 49 -122 0.111 No Trend 1621 - 1921YesL14-M01B (6) Field T TEMPERATURE (FIELD) DEGREES C 6/17/1993 7/5/2006 32 0 100% 0 12.2 23 - - 16.4 2.4 15 -47 0.229 No Trend 15.69 6.74 26.1 NoNotes:(1) The average value of normal sample and field duplicate is used as a single data point. Similarly, the average value of samples collected from the same well on the same date is used as a single data point.(2) For data sets with non-detects (but with at least two or more detected results), the mean and standard deviation were estimated by the Kaplan-Meier method. Otherwise, the convention of using one-half the method detection limit (MDL) for non-detectswas used to complete the calculation of summary statistics.(3) The Mann-Kendall trend test is performed at a 1% significance level on baseline data, excluding outliers.(4) Only statistical significant upward/downward trend result is shown under "Trend Test Result". Insignificant trend test result is indicated as "No Trend". An "-" indicates the trend test is not performed.(5) Out-of-control (OOC) condition is only evaluated for sample results collected in the second half of 2011.(6) Control limits are determined to test the upper bound for all analytes, except for dissolved oxygen, for which the lower bound is tested. For pH, temperature, and redox, 2-sided (upper and lower) limits are used.Control Chart AnalysisBaseline Data (Excluding Outliers and Post-baseline Results)Sample CountsBaseline Sample Date RangeExploratory Data AnalysisTrend Anaysis on Baseline Data- MannKendall Trend Test (=1%)8/23/2013Page 1 of 1ChambersWorks_ResultTables-forAppendices.xlsx0 5 10 15 20 25 30

9/1/93 6/1/94 3/1/95 12/1/95 9/1/96 6/1/97 3/1/98 12/1/98 9/1/99 6/1/00 3/1/01 12/1/01 9/1/02 6/1/03 3/1/04 12/1/04 9/1/05 6/1/06 3/1/07 12/1/07 9/1/08 6/1/09 3/1/10 12/1/10 9/1/11 6/1/12 mg/l

Date 

### Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=H13

- M02B Analyte Group=(6) Field, Total/Dissolved=T, Analyte=Temp, Unit= ° C0 5 10 15 20 25 30 35 40 45 50

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mg/l

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=G16

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOX, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-2 0 2 4 6 8 10

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=H14

- M01B,
Statistical Test=One Sided LowerAnalyte Group=(6) Field,
Analyte=DO, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-500

-400 -300 -200 -100 0 100 200 300 400

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mV

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=H14

- M01B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Redox, Total/Dissolved=T, Units=mV

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 5 10 15 20 25

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 ° C

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=H14

- M01B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Temp, Total/Dissolved=T, Units= ° C

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 2 4 6 8 10 12

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=H14

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOX, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

-400 -300 -200 -100 0 100 200 300

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mV

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=H13

- M02B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Redox, Total/Dissolved=T, Units=mV

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

1000 2000 3000 4000 5000 6000 7000

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 umhos/cm

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=H13

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(6) Field,
Analyte=Spec Cond, Total/Dissolved=T, Units=umhos/cm

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 5 10 15 20 25 30 35

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 ° C

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=H13

- M02B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Temp, Total/Dissolved=T, Units= ° C

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

20 40 60 80 100 120

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=H13

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOC, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 50 100 150 200 250 300 350 400 450 500

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mg/l

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=H16

- P01B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOC, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-4 -2 0 2 4 6 8 10 12

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=J16

- M01B,
Statistical Test=One Sided LowerAnalyte Group=(6) Field,
Analyte=DO, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-300

-250 -200 -150 -100 -50 0 50 100

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13

mV

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=J16

- M01B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Redox, Total/Dissolved=T, Units=mV

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.2 0.4 0.6 0.8 1 1.2 1.4

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=J16

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOX, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

-4 -2 0 2 4 6 8 10

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=K13

- M02B,
Statistical Test=One Sided LowerAnalyte Group=(6) Field,
Analyte=DO, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-300

-250 -200 -150 -100 -50 0 50 100 150 200

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mV

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=K13

- M02B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Redox, Total/Dissolved=T, Units=mV

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 5 10 15 20 25 30

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 ° C

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=K13

- M02B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Temp, Total/Dissolved=T, Units= ° C

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-6 -4 -2 0 2 4 6 8 10

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=L14

- M01B,
Statistical Test=One Sided LowerAnalyte Group=(6) Field,
Analyte=DO, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-500

-400 -300 -200 -100 0 100 200

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13

mV

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=L14

- M01B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Redox, Total/Dissolved=T, Units=mV

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 2000 4000 6000 8000 10000 12000

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 umhos/cm

Year Program=(1) Closure and Post Closure for the A, B, & C Basins, Well=L14

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(6) Field,
Analyte=Spec Cond, Total/Dissolved=T, Units=umhos/cm

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

# Appendix B

Statistical Evaluation Results, Time-Series Plots, and Control Chart Analysis for the Secure C Landfill Corrective Action ProgramDuPont Chambers Works Complex Semi-Annual Statistical Review of Groundwater Monitoring Results

1 st Half 2013 

### Appendix B

Appendix B Secure C Landfill Corrective Action Program B-1

Fort Washington, PA 

# Monitoring Well Summary: Secure C Landfill Corrective Action Program

P21-M01B

None of the well parameters exhibited statis tically significant trends. Five parameters
were determined to be out-of-control, including 4-chloroaniline (CUSUM/measured
value), o-toluidine (CUSUM/measured valu e), aluminum (CUSUM/measured value),
lead (CUSUM/measured value), and to tal phenols (CUSUM/measured value).

P21-M04B

A downward trend was confirmed for sodium a nd sulfate. No parameter was determined

to be out-of-control.

P21-R01B

This is a relatively new monitoring well that became operational in th e first half of 2008. Baseline sample collection was completed in the second half of 2011. Statistically significant increasing trends were observed for chlorobenzene and 1,2-dichlorobenzene, while decreasing trends were identified for sodium and sulfate. No parameters were

determined to be out-of-control.

Q20-M02B

Statistically significant upward trends were observed for chloride, total organic carbon, total organic halogen, dissolved oxyge n, and specific conductance. Sodium
(CUSUM/measured value) was determined to be out-of-control.

Q21-M01B

Statistically significant downward trends were identified for n-nitrosodimethylamine, sulfate, total organic carbon, and total orga nic halogen. Well parameter pH exhibited a significant increasing trend. Aluminum (CUSUM) and sodium (CUSUM/measured
value) were determined to be out-o f-control during this sampling period.STATISTICAL EVALUATION RESULTS FOR THE SECURE C LANDFILL CORRECTIVE ACTION PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMinDetectedMaxDetectedMin MDL ofNDsMax MDLof NDsMean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControlLimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesP21-M01B (1) VOCs T BENZENE MG/L 4/5/1989 1/17/2007 45 32 29% 4 0.001 0.015 0.0005 0.005 0.00281 0.00398 142 -286 0.000Downward0.1 - - -No trend for all dataP21-M01B (1) VOCs T CHLOROBENZENE MG/L 4/5/1989 7/11/2007 47 14 70% 2 0.0009 0.113 0.0008 0.006 0.0146 0.0247 169 -387 0.000Downward0.47 - - -No trend for all dataP21-M01B (1) VOCs T CHLOROFORM MG/L 4/5/1989 7/11/2007 49 49 0% 0 - - 0.0008 0.04----- -<0.0008 - - -All baseline samples are nondetectsP21-M01B (1) VOCs T METHYLENE CHLORIDE MG/L 4/5/1989 7/11/2007 49 43 12% 0 0.00338 0.127 0.001 0.02 0.00643 0.01750 272 - - - <0.002 - - -<25% detection rate in baseline samplesP21-M01B (1) VOCs T TOLUENE MG/L 4/5/1989 7/11/2007 49 39 20% 0 0.001 0.185 0.0007 0.006 0.0103 0.0364 353 - - - 0.013 - - -<25% detection rate in baseline samplesP21-M01B (1) VOCs T TRICHLOROETHENE MG/L 4/5/1989 7/11/2007 49 43 12% 0 0.001 0.0435 0.001 0.01 0.00218 0.00605 278 - - - 0.002 - - -<25% detection rate in baseline samplesP21-M01B (2) SVOCs T 1,2,4-TRICHLOROBENZENE MG/L 7/13/1989 7/11/2007 38 32 16% 0 0.002 0.0162 0.001 0.01 0.00299 0.00294 98 - - - <0.0005 - - -<25% detection rate in baseline samplesP21-M01B (2) SVOCs T 1,2-DICHLOROBENZENE MG/L 7/13/1989 7/11/2007 37 17.5 53% 1 0.001 0.049 0.001 0.0027 0.00693 0.01300 188 -229 0.001Downward0.11 - - -No trend for all dataP21-M01B (2) SVOCs T 1,4-DICHLOROBENZENE MG/L 7/13/1989 7/11/2007 38 35 8% 0 0.002 0.005 0.001 0.022 0.00216 0.00061 28 - - - 0.002 - - -<25% detection rate in baseline samplesP21-M01B (2) SVOCs T 4-CHLOROANILINE MG/L 1/9/1990 7/11/2007 34 16 53% 3 0.001 0.015 0.001 0.014 0.00346 0.00357 103 -23 0.373 No Trend 4.5 - 0.0177YesP21-M01B (2) SVOCs T ANILINE MG/L 1/9/1990 7/11/2007 36 31 14% 0 0.002 0.007 0.001 0.051 0.00239 0.00121 51 - - - 0.68 - - -<25% detection rate in baseline samplesP21-M01B (2) SVOCs T NAPHTHALENE MG/L 7/13/1989 7/11/2007 38 35 8% 0 0.000703 0.002 0.001 0.01 0.000780 0.000305 39 - - - 0.004 - - -<25% detection rate in baseline samplesP21-M01B (2) SVOCs T N-NITROSODIMETHYLAMINE MG/L 7/13/1989 1/17/2007 35 15 57% 3 0.002 0.0573 0.002 0.012 0.0114 0.0156 137 -180 0.005Downward0.026 - - -No trend for all dataP21-M01B (2) SVOCs T O-TOLUIDINE MG/L 7/12/1991 7/11/2007 32 21 34% 4 0.001 0.0284 0.001 0.014 0.00304 0.00530 174 -52 0.206 No Trend 1.7 - 0.0242YesP21-M01B (4) Metals/Inorganics T ALUMINUM MG/L 1/5/1993 7/7/2006 22 1 95% 4 0.0597 0.601 0.052 0.052 0.290 0.171 59 -64 0.038 No Trend 1.19 - 0.974YesP21-M01B (4) Metals/Inorganics T AMMONIA MG/L 1/9/1995 7/11/2007 26 1 96% 0 0.34 5.1 0.2 0.2 2.11 1.28 61 -216 0.000Downward22.7 - - -No trend for all dataP21-M01B (4) Metals/Inorganics T ARSENIC MG/L 1/5/1993 1/17/2007 26 0 100% 2 0.0047 0.06 - - 0.0228 0.0124 54 -116 0.006Downward0.0887 - - -No trend for all dataP21-M01B (4) Metals/Inorganics T CHLORIDE MG/L 4/5/1989 7/11/2007 49 0 100% 0 7.4 353.8 - - 97.7 88.2 90 -652 0.000Downward400 - - -No trend for all dataP21-M01B (4) Metals/Inorganics T CYANIDE MG/L 10/4/1989 7/11/2007 34 12 65% 3 0.0042 0.038 0.004 0.025 0.0121 0.0100 82 -96 0.080 No Trend 0.011 - 0.0519 NoP21-M01B (4) Metals/Inorganics T LEAD MG/L 1/5/1993 1/17/2007 27 10 63% 1 0.00033 0.0072 0.0011 0.005 0.00202 0.00180 89 -44 0.186 No Trend 0.0129 - 0.00922YesP21-M01B (4) Metals/Inorganics T NITRATE MG/L 1/9/1995 7/11/2007 25 15 40% 1 0.043 2.2 0.03 0.04 0.339 0.565 167 145 0.001Upward<1.0 - - -No trend for all dataP21-M01B (4) Metals/Inorganics T SODIUM MG/L 1/9/1995 1/17/2007 25 0 100% 2 3.74 36.5 - - 15.4 9.3 61 -157 0.000Downward125 - - -No trend for all dataP21-M01B (4) Metals/Inorganics T SULFATE MG/L 1/9/1990 1/17/2007 33 0 100% 3 23.8 515.5 - - 138 138 100 -319 0.000Downward189 - - -No trend for all dataP21-M01B (5) Indicators T TOTAL ORGANIC CARBON MG/L 4/5/1989 7/11/2007 48 0 100% 1 7.9 120 - - 33.9 30.4 90 -600 0.000Downward100 - - -No trend for all dataP21-M01B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 4/5/1989 1/17/2007 42 0 100% 4 0.0659 1.19 - - 0.342 0.285 83 -508 0.000Downward5 ---No trend for all dataP21-M01B (5) Indicators T TOTAL PHENOLS MG/L 4/5/1989 1/17/2007 48 25 48% 1 0.004 0.136 0.004 0.05 0.0284 0.0369 130 -141 0.060 No Trend 1.5 - 0.176YesP21-M01B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 9/30/1993 7/11/2007 32 0 100% 1 1.8 5.7 - - 3.03 1.01 33 38 0.276 No Trend 0.25 -1.03 - NoP21-M01B (6) Field T PH STD UNITS 4/5/1989 7/11/2007 49 0 100% 0 5.31 7.63 - - 6.57 0.55 8 287 0.007Upward6.51 - - -No trend for all dataP21-M01B (6) Field T REDOX (FIELD) MV 1/9/1995 7/11/2007 25 0 100% 0 -98.4 225.9 - - -0.612 76.155 -12444 26 0.282 No Trend -112.7 -305 304 NoP21-M01B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 4/5/1989 7/11/2007 48 0 100% 1 193.1 3310 - - 1047 717 69 -683 0.000Downward2830 - - -No trend for all dataP21-M01B (6) Field T TEMPERATURE (FIELD) DEGREES C 9/30/1993 7/11/2007 33 0 100% 0 8.3 21.5 - - 15.3 3.4 23 -7 0.463 No Trend 15.34 1.47 29.1 NoP21-M04B (1) VOCs T BENZENE MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.0005 0.0005----- -<0.0005 - - -<25% detection rate in baseline samplesP21-M04B (1) VOCs T CHLOROBENZENE MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.0008 0.0008----- -<0.0008 - - -<25% detection rate in baseline samplesP21-M04B (1) VOCs T CHLOROFORM MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.0008 0.0008----- -<0.0008 - - -<25% detection rate in baseline samplesP21-M04B (1) VOCs T METHYLENE CHLORIDE MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.002 0.002----- -<0.002 - - -<25% detection rate in baseline samplesP21-M04B (1) VOCs T TOLUENE MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.0007 0.0007----- -<0.0007 - - -<25% detection rate in baseline samplesP21-M04B (1) VOCs T TRICHLOROETHENE MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.001 0.001----- -<0.001 - - -<25% detection rate in baseline samplesP21-M04B (2) SVOCs T 1,2,4-TRICHLOROBENZENE MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.0005 0.001----- -<0.0005 - - -<25% detection rate in baseline samplesP21-M04B (2) SVOCs T 1,2-DICHLOROBENZENE MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.0005 0.001----- -<0.0005 - - -<25% detection rate in baseline samplesP21-M04B (2) SVOCs T 1,4-DICHLOROBENZENE MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.0005 0.001----- -<0.0005 - - -<25% detection rate in baseline samplesP21-M04B (2) SVOCs T 4-CHLOROANILINE MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.0005 0.001----- -<0.0005 - - -<25% detection rate in baseline samplesP21-M04B (2) SVOCs T ANILINE MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.0005 0.001----- -<0.0005 - - -<25% detection rate in baseline samplesP21-M04B (2) SVOCs T NAPHTHALENE MG/L 2/24/2009 7/12/2012 8 7 13% 0 0.0002 0.0002 0.0001 0.001 0.000406 0.000178 44 - - - <0.0001 - - -<25% detection rate in baseline samplesP21-M04B (2) SVOCs T N-NITROSODIMETHYLAMINE MG/L 2/24/2009 7/12/2012 8 7 13% 0 0.002 0.002 0.002 0.002 0.00113 0.00035 31 - - - <0.002 - - -<25% detection rate in baseline samplesP21-M04B (2) SVOCs T O-TOLUIDINE MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.0005 0.001----- -<0.0005 - - -<25% detection rate in baseline samplesP21-M04B (4) Metals/Inorganics T ALUMINUM MG/L 2/24/2009 7/12/2012 8 0 100% 0 1.2 50.6 - - 17.1 16.0 94 4 0.355 No Trend 12.7 - 97.3 NoP21-M04B (4) Metals/Inorganics T AMMONIA MG/L 2/24/2009 7/12/2012 8 5 38% 0 0.3 0.665 0.2 0.2 0.247 0.225 91 -10 0.098 No Trend <0.2 - 1.37 NoP21-M04B (4) Metals/Inorganics T ARSENIC MG/L 2/24/2009 7/12/2012 8 0 100% 0 0.0012 0.0171 - - 0.00561 0.00505 90 4 0.355 No Trend 0.0032 - 0.03 NoP21-M04B (4) Metals/Inorganics T CHLORIDE MG/L 2/24/2009 7/12/2012 8 0 100% 0 136 215 - - 170 28 16 18 0.017 No Trend 201 - 309.34 NoP21-M04B (4) Metals/Inorganics T CYANIDE MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.005 0.005----- -<0.005 - - -<25% detection rate in baseline samplesP21-M04B (4) Metals/Inorganics T LEAD MG/L 2/24/2009 7/12/2012 8 0 100% 0 0.00088 0.0485 - - 0.0144 0.0151 105 3 0.402 No Trend 0.0082 - 0.09 NoP21-M04B (4) Metals/Inorganics T NITRATE MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.04 0.04----- -<0.04 - - -<25% detection rate in baseline samplesP21-M04B (4) Metals/Inorganics T SODIUM MG/L 2/24/2009 7/12/2012 8 0 100% 0 82.8 143 - - 111 21 19 -21 0.006Downward100 - - -Downward trend for all dataP21-M04B (4) Metals/Inorganics T SULFATE MG/L 2/24/2009 7/12/2012 8 0 100% 0 131 479 - - 288 137 48 -20 0.009Downward121 - - -Downward trend for all dataP21-M04B (5) Indicators T TOTAL ORGANIC CARBON MG/L 2/24/2009 7/12/2012 8 0 100% 0 3.2 5.6 - - 4.10 0.89 22 -18 0.017 No Trend 3.1 - 8.55 NoP21-M04B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 2/24/2009 7/12/2012 8 0 100% 0 0.0375 0.166 - - 0.0847 0.0391 46 -6 0.268 No Trend 0.087 - 0.28 NoP21-M04B (5) Indicators T TOTAL PHENOLS MG/L 2/24/2009 7/12/2012 8 8 0% 0 - - 0.015 0.015----- -0.017 - - -<25% detection rate in baseline samplesP21-M04B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 2/24/2009 7/12/2012 8 0 100% 0 0.25 8.16 - - 3.32 2.91 88 -13 0.067 No Trend 0.54 -11.23 - NoP21-M04B (6) Field T PH STD UNITS 2/24/2009 7/12/2012 8 0 100% 0 5.43 5.73 - - 5.58 0.10 2 -8 0.193 No Trend 5.47 5.09 6.07 NoP21-M04B (6) Field T REDOX (FIELD) MV 2/24/2009 7/12/2012 8 0 100% 0 2.2 90.5 - - 63.9 26.5 41 14 0.053 No Trend 107.7 -68.57 196.27 NoP21-M04B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 2/24/2009 7/12/2012 8 0 100% 0 7.65 1492 - - 1064 453 43 -12 0.086 No Trend 1017 - 3326.93 NoP21-M04B (6) Field T TEMPERATURE (FIELD) DEGREES C 2/24/2009 7/12/2012 8 0 100% 0 11.97 14.12 - - 13.4 0.7 5 4 0.355 No Trend 12.64 9.79 16.98 NoP21-R01B (1) VOCs T BENZENE MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.0005 0.0005----- -<0.0005 - - -<25% detection rate in baseline samplesP21-R01B (1) VOCs T CHLOROBENZENE MG/L 1/15/2008 7/14/2011 8 3 63% 0 0.0009 0.003 0.0008 0.0008 0.00123 0.00049 40 24 0.001Upward0.004 - - -Upward trend for all dataP21-R01B (1) VOCs T CHLOROFORM MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.0008 0.0008----- -<0.0008 - - -<25% detection rate in baseline samplesP21-R01B (1) VOCs T METHYLENE CHLORIDE MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.002 0.002----- -<0.002 - - -<25% detection rate in baseline samplesP21-R01B (1) VOCs T TOLUENE MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.0007 0.0007----- -<0.0007 - - -<25% detection rate in baseline samplesBaseline Data (Excluding Outliers and Post-baseline Results)Trend Anaysis on Baseline Data- MannKendall Trend Test (=1%)Control Chart AnalysisBaseline Sample Date Range Sample Counts Exploratory Data Analysis8/23/2013Page 1 of 3ChambersWorks_ResultTables-forAppendices.xlsxSTATISTICAL EVALUATION RESULTS FOR THE SECURE C LANDFILL CORRECTIVE ACTION PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMinDetectedMaxDetectedMin MDL ofNDsMax MDLof NDsMean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControlLimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesBaseline Data (Excluding Outliers and Post-baseline Results)Trend Anaysis on Baseline Data- MannKendall Trend Test (=1%)Control Chart AnalysisBaseline Sample Date Range Sample Counts Exploratory Data AnalysisP21-R01B (1) VOCs T TRICHLOROETHENE MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.001 0.001----- -<0.001 - - -<25% detection rate in baseline samplesP21-R01B (2) SVOCs T 1,2,4-TRICHLOROBENZENE MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.0009 0.001----- -<0.0005 - - -<25% detection rate in baseline samplesP21-R01B (2) SVOCs T 1,2-DICHLOROBENZENE MG/L 1/15/2008 7/14/2011 8 3 63% 0 0.001 0.003 0.0009 0.001 0.00143 0.00049 35 22 0.002Upward0.003 - - -Upward trend for all dataP21-R01B (2) SVOCs T 1,4-DICHLOROBENZENE MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.0009 0.001----- -<0.0005 - - -<25% detection rate in baseline samplesP21-R01B (2) SVOCs T 4-CHLOROANILINE MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.0009 0.001----- -<0.0005 - - -<25% detection rate in baseline samplesP21-R01B (2) SVOCs T ANILINE MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.0009 0.001----- -<0.0005 - - -<25% detection rate in baseline samplesP21-R01B (2) SVOCs T NAPHTHALENE MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.0009 0.001----- -<0.0001 - - -<25% detection rate in baseline samplesP21-R01B (2) SVOCs T N-NITROSODIMETHYLAMINE MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.002 0.002----- -<0.002 - - -<25% detection rate in baseline samplesP21-R01B (2) SVOCs T O-TOLUIDINE MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.0009 0.001----- -<0.0005 - - -<25% detection rate in baseline samplesP21-R01B (4) Metals/Inorganics T ALUMINUM MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.0801 0.0834----- -<0.0743 - - -<25% detection rate in baseline samplesP21-R01B (4) Metals/Inorganics T AMMONIA MG/L 1/15/2008 7/14/2011 8 2 75% 0 0.215 2.2 0.2 0.2 1.104 0.781 71 -15 0.040 No Trend 0.52 - 5.009 NoP21-R01B (4) Metals/Inorganics T ARSENIC MG/L 1/15/2008 7/14/2011 6 0 100% 2 0.0026 0.0053 - -0.00470.00044 9 10 0.030 No Trend 0.005 - 0.010 NoP21-R01B (4) Metals/Inorganics T CHLORIDE MG/L 1/15/2008 7/14/2011 8 0 100% 0 68.75 144 - - 105 22 21 -24 0.002Downward86.4 - - -No trend for all dataP21-R01B (4) Metals/Inorganics T CYANIDE MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.005 0.005----- -<0.005 - - -<25% detection rate in baseline samplesP21-R01B (4) Metals/Inorganics T LEAD MG/L 1/15/2008 7/14/2011 8 1 88% 0 0.000044 0.00016 0.00005 0.00005 0.000077 0.000038 49 -6 0.268 No Trend <0.000073 -0.00027NoP21-R01B (4) Metals/Inorganics T NITRATE MG/L 1/15/2008 7/14/2011 8 8 0% 0 - - 0.04 0.04----- -0.165 - - -<25% detection rate in baseline samplesP21-R01B (4) Metals/Inorganics T SODIUM MG/L 1/15/2008 7/14/2011 8 0 100% 0 79.25 153 - - 107 25 23 -26 0.001Downward73.55 - - -Downward trend for all dataP21-R01B (4) Metals/Inorganics T SULFATE MG/L 1/15/2008 7/14/2011 8 0 100% 0 186.5 562 - - 320 113 35 -22 0.005Downward190.5 - - -Downward trend for all dataP21-R01B (5) Indicators T TOTAL ORGANIC CARBON MG/L 1/15/2008 7/14/2011 8 0 100% 0 11.2 12.5 - - 11.8 0.4 3 12 0.087 No Trend 10.95 -13.839NoP21-R01B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 1/15/2008 7/14/2011 8 0 100% 0 0.0264 0.285 - - 0.110 0.085 78 -4 0.355 No Trend 0.05 B -0.537NoP21-R01B (5) Indicators T TOTAL PHENOLS MG/L 1/15/2008 7/14/2011 8 7 13% 0 0.01875 0.01875 0.015 0.015 0.00911 0.00425 47 - - - <0.015 - - -<25% detection rate in baseline samplesP21-R01B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 1/15/2008 7/14/2011 8 0 100% 0 1.1 7.94 - - 4.44 2.13 48 -10 0.133 No Trend 5.83 -6.19 - NoP21-R01B (6) Field T PH STD UNITS 1/15/2008 7/14/2011 8 0 100% 0 5.23 6.8 - - 6.11 0.47 8 -2 0.451 No Trend 5.783.758 8.459NoP21-R01B (6) Field T REDOX (FIELD) MV 1/15/2008 7/14/2011 8 0 100% 0 -28.8 136.4 - - 41.6 56.7 137 -12 0.087 No Trend 34.3-242.163 325.306NoP21-R01B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 1/15/2008 7/14/2011 6 0 100% 2 1087 1245 - - 1136 58 5 -4 0.354 No Trend 5151425.350NoP21-R01B (6) Field T TEMPERATURE (FIELD) DEGREES C 1/15/2008 7/14/2011 8 0 100% 0 13.94 17.66 - - 15.3 1.2 8 8 0.193 No Trend 14.169.172 21.470NoQ20-M02B (1) VOCs T BENZENE MG/L 3/9/1989 7/11/2007 54 54 0% 0 - - 0.0005 0.005----- -<0.0005 - - -All baseline samples are nondetectsQ20-M02B (1) VOCs T CHLOROBENZENE MG/L 3/9/1989 7/11/2007 54 53 2% 0 0.0009 0.0009 0.0008 0.006 0.00149 0.00121 81 - - - 0.005 - - -<25% detection rate in baseline samplesQ20-M02B (1) VOCs T CHLOROFORM MG/L 3/9/1989 7/11/2007 54 54 0% 0 - - 0.0008 0.005----- -0.002 J - - -All baseline samples are nondetectsQ20-M02B (1) VOCs T METHYLENE CHLORIDE MG/L 3/9/1989 7/11/2007 54 48 11% 0 0.00338 0.0281 0.001 0.005 0.00479 0.00492 103 - - - <0.002 - - -<25% detection rate in baseline samplesQ20-M02B (1) VOCs T TOLUENE MG/L 3/9/1989 7/11/2007 54 52 4% 0 0.00305 0.00681 0.0007 0.006 0.00312 0.00051 16 - - - <0.0007 - - -<25% detection rate in baseline samplesQ20-M02B (1) VOCs T TRICHLOROETHENE MG/L 3/9/1989 7/11/2007 54 53 2% 0 0.0012 0.0012 0.001 0.005 0.000840 0.000578 69 - - - <0.001 - - -<25% detection rate in baseline samplesQ20-M02B (2) SVOCs T 1,2,4-TRICHLOROBENZENE MG/L 3/9/1989 7/11/2007 44 44 0% 0 - - 0.0009 0.01----- -<0.0005 - - -All baseline samples are nondetectsQ20-M02B (2) SVOCs T 1,2-DICHLOROBENZENE MG/L 3/9/1989 7/11/2007 44 43 2% 0 0.002 0.002 0.0009 0.01 0.000943 0.001147 122 - - - 0.001 - - -<25% detection rate in baseline samplesQ20-M02B (2) SVOCs T 1,4-DICHLOROBENZENE MG/L 3/9/1989 7/11/2007 44 44 0% 0 - - 0.0009 0.01----- -<0.0005 - - -All baseline samples are nondetectsQ20-M02B (2) SVOCs T 4-CHLOROANILINE MG/L 1/8/1990 7/11/2007 42 42 0% 0 - - 0.0009 0.011----- -<0.0005 - - -All baseline samples are nondetectsQ20-M02B (2) SVOCs T ANILINE MG/L 1/8/1990 7/11/2007 42 42 0% 0 - - 0.0009 0.011----- -<0.0005 - - -All baseline samples are nondetectsQ20-M02B (2) SVOCs T NAPHTHALENE MG/L 3/9/1989 7/11/2007 41 29 29% 3 0.001 0.00212 0.0009 0.0017 0.00110 0.00031 28 -25 0.299 No Trend 0.0001 - 0.00232 NoQ20-M02B (2) SVOCs T N-NITROSODIMETHYLAMINE MG/L 3/9/1989 7/11/2007 44 40 9% 0 0.002 0.003 0.001 0.011 0.00203 0.00017 9 - - - <0.002 - - -<25% detection rate in baseline samplesQ20-M02B (2) SVOCs T O-TOLUIDINE MG/L 1/8/1990 7/11/2007 38 38 0% 0 - - 0.0009 0.011----- -<0.0005 - - -All baseline samples are nondetectsQ20-M02B (4) Metals/Inorganics T ALUMINUM MG/L 1/9/1995 7/11/2007 24 17 29% 1 0.0271 0.149 0.019 0.082 0.0456 0.0333 73 -1 0.500 No Trend <0.0743 - 0.179 NoQ20-M02B (4) Metals/Inorganics T AMMONIA MG/L 1/9/1995 7/11/2007 26 24 8% 0 0.17 0.3 0.1 0.46 0.176 0.027 15 - - - 0.42 - - -<25% detection rate in baseline samplesQ20-M02B (4) Metals/Inorganics T ARSENIC MG/L 1/9/1995 7/11/2007 29 20 31% 2 0.0014 0.0032 0.00085 0.0023 0.00166 0.00053 32 63 0.124 No Trend 0.002- 0.00379 NoQ20-M02B (4) Metals/Inorganics T CHLORIDE MG/L 3/6/1989 7/11/2007 50 0 100% 0 37.3 151 - - 102 31 30 476 0.000Upward237 - - -Upward trend for all dataQ20-M02B (4) Metals/Inorganics T CYANIDE MG/L 3/9/1989 7/11/2007 38 38 0% 0 - - 0.004 0.025----- -0.0056 - - -All baseline samples are nondetectsQ20-M02B (4) Metals/Inorganics T LEAD MG/L 1/9/1995 7/11/2007 29 23 21% 2 0.00005 0.0029 0.000047 0.0019 0.000369 0.000722 196 - - - <0.000073 - - -<25% detection rate in baseline samplesQ20-M02B (4) Metals/Inorganics T NITRATE MG/L 1/9/1995 7/11/2007 26 25 4% 0 0.78 0.78 0.03 0.04 0.0481 0.1493 311 - - - <0.04 - - -<25% detection rate in baseline samplesQ20-M02B (4) Metals/Inorganics T SODIUM MG/L 1/9/1995 7/11/2007 26 0 100% 0 56.4 88.9 - - 76.7 8.6 11 -30 0.262 No Trend 116 - 111YesQ20-M02B (4) Metals/Inorganics T SULFATE MG/L 9/12/1989 7/11/2007 37 0 100% 0 11.9 231 - - 156 73 47 296 0.000Upward138 - - -No trend for all dataQ20-M02B (5) Indicators T TOTAL ORGANIC CARBON MG/L 3/6/1989 7/11/2007 54 2.25 96% 0 1.03 6.25 1 1 3.09 1.13 37 685 0.000Upward5.9 - - -Upward trend for all dataQ20-M02B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 3/6/1989 7/11/2007 48 1.5 97% 2 0.00475 0.135 0.005 0.005 0.0479 0.0251 52 307 0.003Upward0.12 - - -Upward trend for all dataQ20-M02B (5) Indicators T TOTAL PHENOLS MG/L 3/6/1989 7/11/2007 51 46 10% 0 0.0028 0.015 0.004 0.05 0.00398 0.00312 78 - - - <0.015 - - -<25% detection rate in baseline samplesQ20-M02B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 7/19/1993 7/11/2007 37 0 100% 0 1.1 6.57 - - 2.92 1.12 38 212 0.003Upward8.41 - - -Upward trend for all dataQ20-M02B (6) Field T PH STD UNITS 3/6/1989 7/11/2007 58 0 100% 0 5.21 7.85 - - 6.07 0.56 9 -328 0.014 No Trend 6.65 3.85 8.30 NoQ20-M02B (6) Field T REDOX (FIELD) MV 7/12/1995 7/11/2007 25 0 100% 2 -64.4 166.5 - - 67.1 53.9 80 7 0.445 No Trend -84.9 -149 283 NoQ20-M02B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 3/6/1989 7/11/2007 51 0 100% 2 211 1083 - - 575 272 47 500 0.000Upward1255 - - -Upward trend for all dataQ20-M02B (6) Field T TEMPERATURE (FIELD) DEGREES C 7/19/1993 7/11/2007 36 0 100% 1 11.7 21.1 - - 15.0 2.1 14 -13 0.435 No Trend 11.78 6.58 23.4 NoQ21-M01B (1) VOCs T BENZENE MG/L 5/1/1989 7/11/2007 49 49 0% 0 - - 0.0005 0.44----- -<0.0005 - - -All baseline samples are nondetectsQ21-M01B (1) VOCs T CHLOROBENZENE MG/L 5/1/1989 7/11/2007 49 47 4% 0 0.00169 0.002 0.0008 0.6 0.00170 0.00006 4 - - - <0.0008 - - -<25% detection rate in baseline samplesQ21-M01B (1) VOCs T CHLOROFORM MG/L 5/1/1989 7/11/2007 49 49 0% 0 - - 0.0008 0.16----- -<0.0008 - - -All baseline samples are nondetectsQ21-M01B (1) VOCs T METHYLENE CHLORIDE MG/L 5/1/1989 7/11/2007 48 45 6% 0 0.00172 0.379 0.001 0.01 0.00963 0.05390 560 - - - <0.002 - - -<25% detection rate in baseline samplesQ21-M01B (1) VOCs T TOLUENE MG/L 5/1/1989 7/11/2007 49 49 0% 0 - - 0.0007 0.6----- -<0.0007 - - -All baseline samples are nondetectsQ21-M01B (1) VOCs T TRICHLOROETHENE MG/L 5/1/1989 7/11/2007 49 48 2% 0 0.001 0.001 0.001 0.19 0.00288 0.01345 468 - - - <0.001 - - -<25% detection rate in baseline samplesQ21-M01B (2) SVOCs T 1,2,4-TRICHLOROBENZENE MG/L 8/8/1989 7/11/2007 39 39 0% 0 - - 0.001 0.01----- -<0.0006 - - -All baseline samples are nondetectsQ21-M01B (2) SVOCs T 1,2-DICHLOROBENZENE MG/L 8/8/1989 7/11/2007 39 38.5 1% 0 0.00075 0.00075 0.001 0.01 0.000969 0.001195 123 - - - <0.0006 - - -<25% detection rate in baseline samplesQ21-M01B (2) SVOCs T 1,4-DICHLOROBENZENE MG/L 8/8/1989 7/11/2007 39 39 0% 0 - - 0.001 0.01----- -<0.0006 - - -All baseline samples are nondetectsQ21-M01B (2) SVOCs T 4-CHLOROANILINE MG/L 10/4/1989 7/11/2007 38 19 50% 0 0.00075 0.011 0.001 0.01 0.00211 0.00195 92 -19 0.411 No Trend 0.0009 - 0.00991 No8/23/2013Page 2 of 3ChambersWorks_ResultTables-forAppendices.xlsxSTATISTICAL EVALUATION RESULTS FOR THE SECURE C LANDFILL CORRECTIVE ACTION PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMinDetectedMaxDetectedMin MDL ofNDsMax MDLof NDsMean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControlLimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesBaseline Data (Excluding Outliers and Post-baseline Results)Trend Anaysis on Baseline Data- MannKendall Trend Test (=1%)Control Chart AnalysisBaseline Sample Date Range Sample Counts Exploratory Data AnalysisQ21-M01B (2) SVOCs T ANILINE MG/L 10/4/1989 7/11/2007 38 37 3% 0 0.0034 0.0034 0.001 0.01 0.00194 0.00203 105 - - - <0.0006 - - -<25% detection rate in baseline samplesQ21-M01B (2) SVOCs T NAPHTHALENE MG/L 8/8/1989 7/11/2007 39 39 0% 0 - - 0.001 0.01----- -<0.0001 - - -All baseline samples are nondetectsQ21-M01B (2) SVOCs T N-NITROSODIMETHYLAMINE MG/L 10/4/1989 7/11/2007 36 13 64% 2 0.002 0.117 0.002 0.01 0.0216 0.0334 155 -391 0.000Downward<0.002 - - -Downward trend for all dataQ21-M01B (2) SVOCs T O-TOLUIDINE MG/L 10/4/1989 7/11/2007 38 37 3% 0 0.0021 0.0021 0.001 0.01 0.00200 0.00196 98 - - - <0.0006 - - -<25% detection rate in baseline samplesQ21-M01B (4) Metals/Inorganics T ALUMINUM MG/L 1/9/1995 1/17/2007 25 0 100% 1 0.1191 4.06 - - 0.848 1.007 119 2 0.491 No Trend 0.363 - 4.87YesQ21-M01B (4) Metals/Inorganics T AMMONIA MG/L 1/9/1995 7/11/2007 27 0 100% 0 2.15 7.6 - - 4.71 1.76 37 -149 0.001Downward12.6 - - -No trend for all dataQ21-M01B (4) Metals/Inorganics T ARSENIC MG/L 1/9/1995 7/11/2007 25 0 100% 1 0.00685 0.02 - - 0.0124 0.0036 29 -40 0.183 No Trend 0.0042 - 0.0268 NoQ21-M01B (4) Metals/Inorganics T CHLORIDE MG/L 5/1/1989 7/11/2007 49 0 100% 0 65 214.5 - - 136 36 26 -331 0.002Downward385 - - -No trend for all dataQ21-M01B (4) Metals/Inorganics T CYANIDE MG/L 8/8/1989 7/11/2007 36 2.5 93% 1 0.0157 0.0735 0.01 0.025 0.0390 0.0158 41 33 0.332 No Trend 0.041 - 0.102 NoQ21-M01B (4) Metals/Inorganics T LEAD MG/L 1/9/1995 7/11/2007 24 13 46% 2 0.00045 0.0045 0.00087 0.0019 0.00149 0.00116 78 46 0.134 No Trend 0.00034- 0.00613 NoQ21-M01B (4) Metals/Inorganics T NITRATE MG/L 1/9/1995 7/11/2007 26 25 4% 0 0.1065 0.1065 0.03 0.2 0.0291 0.0257 88 - - - <0.04 - - -<25% detection rate in baseline samplesQ21-M01B (4) Metals/Inorganics T SODIUM MG/L 1/9/1995 7/11/2007 26 0 100% 0 29.75 99.9 - - 71.0 14.9 21 19 0.347 No Trend 164 - 131YesQ21-M01B (4) Metals/Inorganics T SULFATE MG/L 8/8/1989 7/11/2007 37 9 76% 0 6.125 435 6 50 118 130 110 -418 0.000Downward64.1 - - -Downward trend for all dataQ21-M01B (5) Indicators T TOTAL ORGANIC CARBON MG/L 5/1/1989 7/11/2007 49 0 100% 0 28.9 80.1 - - 50.3 14.4 29 -700 0.000Downward28.7 - - -Downward trend for all dataQ21-M01B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 5/1/1989 7/11/2007 45 0 100% 4 0.0615 0.581 - - 0.227 0.115 51 -426 0.000Downward0.14 - - -Downward trend for all dataQ21-M01B (5) Indicators T TOTAL PHENOLS MG/L 5/1/1989 7/11/2007 49 41.5 15% 0 0.005 0.1345 0.004 0.05 0.0111 0.0195 176 - - - <0.015 - - -<25% detection rate in baseline samplesQ21-M01B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 7/19/1993 7/11/2007 33 0 100% 1 0.5 4.04 - - 2.04 0.74 36 -18 0.397 No Trend 0.46 -0.926 - NoQ21-M01B (6) Field T PH STD UNITS 5/1/1989 7/11/2007 50 0 100% 0 5.96 7.15 - - 6.47 0.25 4 457 0.000Upward6.48 - - -Upward trend for all dataQ21-M01B (6) Field T REDOX (FIELD) MV 7/12/1995 7/11/2007 25 0 100% 1 -126.5 101.9 - - -49.0 48.5 -99 -68 0.059 No Trend -102.1 -243 145 NoQ21-M01B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 5/1/1989 7/11/2007 49 0 100% 1 205 2110 - - 1234 538 44 -527 0.000Downward2089 - - -No trend for all dataQ21-M01B (6) Field T TEMPERATURE (FIELD) DEGREES C 7/19/1993 7/11/2007 34 0 100% 0 5.8 22.3 - - 15.8 4.3 27 -41 0.278 No Trend 14.73 -1.50 33.0 NoNotes:(1) The average value of primary field sample and field duplicate is used as a single data point. Similarly, the average valueof samples collected from the same well on the same date is used as a single data point.(2) For data sets with non-detects (but with at least two or more detected results), the mean and standard deviation were estimated by the Kaplan-Meier method. Otherwise, the convention of using one-half the method detection limit (MDL) for non-detectswas used to complete the calculation of summary statistics.(3) The Mann-Kendall trend test is performed at a 1% significance level on baseline data, excluding outliers.(4) Only statistical significant upward/downward trend result is shown under "Trend Test Result". Insignificant trend test result is indicated as "No Trend". An "-" indicates the trend test is not performed.(5) Out-of-control (OOC) condition is only evaluated for sample results collected in the second half of 2012.(6) Control limits are determined to test the upper bound for all analytes, except for dissolved oxygen, for which the lower bound is tested. For pH, temperature, and redox, 2-sided (upper and lower) limits are used.8/23/2013Page 3 of 3ChambersWorks_ResultTables-forAppendices.xlsx-4 -2 0 2 4 6 8 10 12

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M01B,
Statistical Test=One Sided LowerAnalyte Group=(6) Field,
Analyte=DO, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-15

-10 -5 0 5 10

09 10 11 12 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M04B,
Statistical Test=One Sided LowerAnalyte Group=(6) Field,
Analyte=DO, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 1 2 3 4 5 6 7

09 10 11 12 Std. Units

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M04B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=pH, Total/Dissolved=T, Units=Std. Units

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

-100 -50 0 50 100 150 200 250

09 10 11 12 mV

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M04B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Redox, Total/Dissolved=T, Units=mV

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

500 1000 1500 2000 2500 3000 3500

09 10 11 12 umhos/cm

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M04B,
Statistical Test=One Sided HigherAnalyte Group=(6) Field,
Analyte=Spec Cond, Total/Dissolved=T, Units=umhos/cm

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 1 2 3 4 5 6 7 8 9

09 10 11 12 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M04B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOC, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.05 0.1 0.15 0.2 0.25 0.3

09 10 11 12 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M04B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOX, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-8 -6 -4 -2 0 2 4 6 8 10

08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- R01B,
Statistical Test=One Sided LowerAnalyte Group=(6) Field,
Analyte=DO, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 1 2 3 4 5 6 7 8 9

08 09 10 11 12 13 Std. Units

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- R01B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=pH, Total/Dissolved=T, Units=Std. Units

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-300

-200 -100 0 100 200 300 400

08 09 10 11 12 13 mV

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- R01B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Redox, Total/Dissolved=T, Units=mV

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 200 400 600 800 1000 1200 1400 1600

08 09 10 11 12 13 umhos/cm

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- R01B,
Statistical Test=One Sided HigherAnalyte Group=(6) Field,
Analyte=Spec Cond, Total/Dissolved=T, Units=umhos/cm

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 5 10 15 20 25

08 09 10 11 12 13 ° C

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- R01B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Temp, Total/Dissolved=T, Units= ° C

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 2 4 6 8 10 12 14 16

08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- R01B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOC, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-200

-150 -100 -50 0 50 100 150 200 250 300 350

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mV

Year Program=(6) Secure C Landfill Corrective Action, Well=Q20

- M02B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Redox, Total/Dissolved=T, Units=mV

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 5 10 15 20 25

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 ° C

Year Program=(6) Secure C Landfill Corrective Action, Well=Q20

- M02B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Temp, Total/Dissolved=T, Units= ° C

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-300

-250 -200 -150 -100 -50 0 50 100 150 200

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mV

Year Program=(6) Secure C Landfill Corrective Action, Well=Q21

- M01B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Redox, Total/Dissolved=T, Units=mV

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 2 4 6 8 10 12 14 16 18

90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(2) SVOCs,

Analyte=4

- chloroaniline, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.2 0.4 0.6 0.8 1 1.2 1.4 1.6

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=aluminum, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.01 0.02 0.03 0.04 0.05 0.06

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=cyanide, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=lead, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(2) SVOCs,

Analyte=o

- toluidine, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 1 2 3 4 5 6 7

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=Total Phenols, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 20 40 60 80 100 120

09 10 11 12 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M04B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=aluminum, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.2 0.4 0.6 0.8 1 1.2 1.4 1.6

09 10 11 12 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M04B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=ammonia, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.005 0.01 0.015 0.02 0.025 0.03 0.035

09 10 11 12 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M04B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=arsenic, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

50 100 150 200 250 300 350

09 10 11 12 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M04B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=chloride, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1

09 10 11 12 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- M04B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=lead, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 1 2 3 4 5 6

08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- R01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=ammonia, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018

08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- R01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=arsenic, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.00005 0.0001 0.00015 0.0002 0.00025 0.0003

08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=P21

- R01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=lead, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=Q20

- M02B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=aluminum, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=Q20

- M02B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=arsenic, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.0005 0.001 0.0015 0.002 0.0025

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=Q20

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(2) SVOCs,
Analyte=naphthalene, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 1 2 3 4 5 6 7 8 9 10

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=Q21

- M01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=aluminum, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.005 0.01 0.015 0.02 0.025 0.03

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=Q21

- M01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=arsenic, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.02 0.04 0.06 0.08 0.1 0.12

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=Q21

- M01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=cyanide, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.001 0.002 0.003 0.004 0.005 0.006 0.007

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mg/l

Year Program=(6) Secure C Landfill Corrective Action, Well=Q21

- M01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=lead, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

# Appendix C

Statistical Evaluation Results, Time-Series Plots, and Control Chart Analysis for the Secure C Landfill Detection Monitoring ProgramDuPont Chambers Works Complex Semi-Annual Statistical Review of Groundwater Monitoring Results

1 st Half 2013 

### Appendix C

Appendix C Secure C Landfill Detection Monitoring Program C-1

Fort Washington, PA 

# Monitoring Well Summary: Secure C Landfill Detection Monitoring Program

R19-M01B

An evaluation of the data with the Mann-Kenda ll analysis indicated that sodium and total organic carbon exhibited an upward trend. With respect to the control chart analysis, arsenic (CUSUM), total organic halogen (C USUM), and specific conductance (CUSUM)

were determined to be out-of-control.

R19-M02B

The Mann-Kendall analysis indicated that none of the well parameters exhibited a trend and concentrations were randomly distribu ted over the evalua tion period. Aluminum (CUSUM), dissolved oxygen, and total organic halogen (CUSUM) were determined to be

out-of-control.

S19-M01B

Both chloride and sodium exhibit an upwar d trend, whereas dissolved oxygen is trending downwards. Three parameters were determined to be out-of-control including aluminum (CUSUM), total organic halogen (CUSUM/m easured value), and specific conductance
(CUSUM).

S19-M02B

Nitrate exhibits a statistica lly significant downward trend, whereas chloride and total organic carbon exhibit an upward trend. Th e combined Shewhart-CUSUM procedure
indicates that sodium (CUSUM/measured value), total organi c halogen (CUSUM), dissolved oxygen (CUSUM), and specific conductance (CUSUM/measured value) are

out-of-control.STATISTICAL EVALUATION RESULTS FOR THE SECURE C LANDFILL DETECTION MONITORING PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMinDetectedMaxDetectedMin MDL ofNDsMax MDLof NDsMean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControlLimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesR19-M01B (1) VOCs T BENZENE MG/L 4/5/1989 7/10/2007 53 53 0% 0 - - 0.0005 0.005----- -<0.0005 - - -All baseline samples are nondetectsR19-M01B (1) VOCs T CHLOROBENZENE MG/L 4/5/1989 7/10/2007 53 50 6% 0 0.002 0.003 0.0008 0.006 0.00203 0.00018 9 - - - <0.0008 - - -<25% detection rate in baseline samplesR19-M01B (1) VOCs T CHLOROFORM MG/L 4/5/1989 7/10/2007 53 53 0% 0 - - 0.0008 0.005----- -<0.0008 - - -All baseline samples are nondetectsR19-M01B (1) VOCs T METHYLENE CHLORIDE MG/L 4/5/1989 7/10/2007 53 48 9% 0 0.00234 0.0121 0.001 0.005 0.00279 0.00180 65 - - - <0.002 - - -<25% detection rate in baseline samplesR19-M01B (1) VOCs T TOLUENE MG/L 4/5/1989 7/10/2007 53 52 2% 0 0.0249 0.0249 0.0007 0.006 0.00207 0.00339 164 - - - <0.0007 - - -<25% detection rate in baseline samplesR19-M01B (1) VOCs T TRICHLOROETHENE MG/L 4/5/1989 7/10/2007 53 48 9% 0 0.0019 0.008 0.001 0.005 0.00210 0.00099 47 - - - <0.001 - - -<25% detection rate in baseline samplesR19-M01B (2) SVOCs T 1,2,4-TRICHLOROBENZENE MG/L 7/12/1989 7/10/2007 39 39 0% 0 - - 0.0009 0.01----- -<0.0005 - - -All baseline samples are nondetectsR19-M01B (2) SVOCs T 1,2-DICHLOROBENZENE MG/L 7/12/1989 7/10/2007 39 39 0% 0 - - 0.0009 0.01----- -<0.0005 - - -All baseline samples are nondetectsR19-M01B (2) SVOCs T 1,2-DICHLOROPROPANE MG/L 4/5/1989 7/10/2007 42 42 0% 0 - - 0.001 0.006----- -<0.001 - - -All baseline samples are nondetectsR19-M01B (2) SVOCs T 1,4-DICHLOROBENZENE MG/L 7/12/1989 7/10/2007 39 39 0% 0 - - 0.0009 0.01----- -<0.0005 - - -All baseline samples are nondetectsR19-M01B (2) SVOCs T 4-CHLOROANILINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.0009 0.011----- -<0.0005 - - -All baseline samples are nondetectsR19-M01B (2) SVOCs T ANILINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.0009 0.011----- -<0.0005 - - -All baseline samples are nondetectsR19-M01B (2) SVOCs T ETHYLBENZENE MG/L 4/5/1989 7/10/2007 42 42 0% 0 - - 0.0008 0.0072----- -<0.0008 - - -All baseline samples are nondetectsR19-M01B (2) SVOCs T NAPHTHALENE MG/L 7/12/1989 7/10/2007 39 37 5% 0 0.001 0.005 0.0009 0.01 0.00111 0.00066 59 - - - <0.0001 - - -<25% detection rate in baseline samplesR19-M01B (2) SVOCs T N-NITROSODIMETHYLAMINE MG/L 7/12/1989 7/10/2007 39 39 0% 0 - - 0.001 0.011----- -<0.002 - - -All baseline samples are nondetectsR19-M01B (2) SVOCs T O-TOLUIDINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.0009 0.011----- -<0.0005 - - -All baseline samples are nondetectsR19-M01B (2) SVOCs T XYLENES MG/L 4/4/1994 7/10/2007 21 21 0% 0 - - 0.0008 0.005----- -<0.0008 - - -All baseline samples are nondetectsR19-M01B (4) Metals/Inorganics T ALUMINUM MG/L 1/5/1993 7/10/2007 23 16 30% 1 0.0269 0.128 0.019 0.1 0.0428 0.0257 60 -39 0.160 No Trend 0.0673 - 0.146 NoR19-M01B (4) Metals/Inorganics T AMMONIA MG/L 8/14/1996 7/10/2007 23 14 39% 0 0.16 0.97 0.11 0.46 0.280 0.214 76 111 0.001Upward1.4 - - -No trend for all dataR19-M01B (4) Metals/Inorganics T ARSENIC MG/L 8/14/1996 7/10/2007 23 15 35% 1 0.00081 0.0017 0.00085 0.0021 0.00104 0.00028 27 22 0.290 No Trend 0.0016 - 0.00217YesR19-M01B (4) Metals/Inorganics T CHLORIDE MG/L 4/5/1989 7/10/2007 51 0 100% 1 17.1 168 - - 55.8 35.8 64 -1 0.500 No Trend 73 - 199 NoR19-M01B (4) Metals/Inorganics T CYANIDE MG/L 7/12/1989 7/10/2007 37 33 11% 0 0.004 0.0055 0.004 0.025 0.00412 0.00032 8 - - - <0.005 - - -<25% detection rate in baseline samplesR19-M01B (4) Metals/Inorganics T LEAD MG/L 1/5/1993 7/10/2007 24 19 21% 0 0.0005 0.0017 0.00018 0.005 0.000644 0.000322 50 - - - 0.00019 - - -<25% detection rate in baseline samplesR19-M01B (4) Metals/Inorganics T NITRATE MG/L 8/14/1996 7/10/2007 22 3 86% 1 0.051 0.7 0.04 0.04 0.249 0.205 82 11 0.390 No Trend 0.0565 - 1.07 NoR19-M01B (4) Metals/Inorganics T SODIUM MG/L 1/5/1993 7/10/2007 24 0 100% 0 11.5 82.2 - - 31.3 22.4 72 166 0.000Upward55.7 - - -Upward trend for all dataR19-M01B (4) Metals/Inorganics T SULFATE MG/L 7/12/1989 7/10/2007 37 0 100% 0 38 600 - - 255 149 58 153 0.024 No Trend 235 - 850 NoR19-M01B (5) Indicators T TOTAL ORGANIC CARBON MG/L 4/5/1989 7/10/2007 52 0.25 100% 0 1 10.8 - - 4.53 1.96 43 303 0.009Upward8.3 - - -Upward trend for all dataR19-M01B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 4/5/1989 7/10/2007 51 7 86% 1 0.0135 0.219 0.005 0.07 0.0685 0.0505 74 -21 0.435 No Trend 0.13 -0.271YesR19-M01B (5) Indicators T TOTAL PHENOLS MG/L 4/5/1989 7/10/2007 52 46 12% 0 0.005 0.027 0.004 0.05 0.00655 0.00437 67 - - - <0.015 - - -<25% detection rate in baseline samplesR19-M01B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 7/19/1993 7/10/2007 35 0 100% 1 0.93 4.1 - - 2.41 0.85 35 -94 0.094 No Trend 0.8 -1.00 - NoR19-M01B (6) Field T PH STD UNITS 4/5/1989 7/10/2007 51 0 100% 1 5.52 7.75 - - 6.22 0.45 7 146 0.119 No Trend 5.96 4.43 8.02 NoR19-M01B (6) Field T REDOX (FIELD) MV 1/10/1995 7/10/2007 27 0 100% 1 -24.4 460.5 - - 148 105 71 -10 0.426 No Trend 13 -271 567 NoR19-M01B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 4/5/1989 7/10/2007 50 0 100% 2 1.023 1143 - - 608 276 45 131 0.138 No Trend 1181 - 1710YesR19-M01B (6) Field T TEMPERATURE (FIELD) DEGREES C 7/19/1993 7/10/2007 35 0 100% 1 7.5 20.1 - - 15.3 3.5 23 -72 0.158 No Trend 14.03 1.41 29.2 NoR19-M02B (1) VOCs T BENZENE MG/L 4/5/1989 7/10/2007 52 52 0% 0 - - 0.0005 0.005----- -<0.0005 - - -All baseline samples are nondetectsR19-M02B (1) VOCs T CHLOROBENZENE MG/L 4/5/1989 7/10/2007 52 52 0% 0 - - 0.0008 0.006----- -<0.0008 - - -All baseline samples are nondetectsR19-M02B (1) VOCs T CHLOROFORM MG/L 4/5/1989 7/10/2007 52 48 8% 0 0.00135 0.0051 0.0008 0.005 0.00145 0.00053 36 - - - <0.0008 - - -<25% detection rate in baseline samplesR19-M02B (1) VOCs T METHYLENE CHLORIDE MG/L 4/5/1989 7/10/2007 52 48 8% 0 0.00396 0.0114 0.001 0.005 0.00416 0.00106 25 - - - <0.002 - - -<25% detection rate in baseline samplesR19-M02B (1) VOCs T TOLUENE MG/L 4/5/1989 7/10/2007 52 52 0% 0 - - 0.0007 0.006----- -<0.0007 - - -All baseline samples are nondetectsR19-M02B (1) VOCs T TRICHLOROETHENE MG/L 4/5/1989 7/10/2007 52 51 2% 0 0.000598 0.000598 0.001 0.005 0.000871 0.000628 72 - - - <0.001 - - -<25% detection rate in baseline samplesR19-M02B (2) SVOCs T 1,2,4-TRICHLOROBENZENE MG/L 7/12/1989 7/10/2007 39 39 0% 0 - - 0.001 0.01----- -<0.0005 - - -All baseline samples are nondetectsR19-M02B (2) SVOCs T 1,2-DICHLOROBENZENE MG/L 7/12/1989 7/10/2007 39 39 0% 0 - - 0.001 0.01----- -<0.0005 - - -All baseline samples are nondetectsR19-M02B (2) SVOCs T 1,2-DICHLOROPROPANE MG/L 4/5/1989 7/10/2007 41 41 0% 0 - - 0.001 0.006----- -<0.001 - - -All baseline samples are nondetectsR19-M02B (2) SVOCs T 1,4-DICHLOROBENZENE MG/L 7/12/1989 7/10/2007 39 39 0% 0 - - 0.001 0.01----- -<0.0005 - - -All baseline samples are nondetectsR19-M02B (2) SVOCs T 4-CHLOROANILINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.001 0.011----- -<0.0005 - - -All baseline samples are nondetectsR19-M02B (2) SVOCs T ANILINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.001 0.011----- -<0.0005 - - -All baseline samples are nondetectsR19-M02B (2) SVOCs T ETHYLBENZENE MG/L 4/5/1989 7/10/2007 41 41 0% 0 - - 0.0008 0.0072----- -<0.0008 - - -All baseline samples are nondetectsR19-M02B (2) SVOCs T NAPHTHALENE MG/L 7/12/1989 7/10/2007 39 39 0% 0 - - 0.001 0.01----- -<0.0001 - - -All baseline samples are nondetectsR19-M02B (2) SVOCs T N-NITROSODIMETHYLAMINE MG/L 7/12/1989 7/10/2007 39 39 0% 0 - - 0.001 0.011----- -<0.002 - - -All baseline samples are nondetectsR19-M02B (2) SVOCs T O-TOLUIDINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.001 0.011----- -<0.0005 - - -All baseline samples are nondetectsR19-M02B (2) SVOCs T XYLENES MG/L 4/4/1994 7/10/2007 21 21 0% 0 - - 0.0008 0.005----- -<0.0008 - - -All baseline samples are nondetectsR19-M02B (4) Metals/Inorganics T ALUMINUM MG/L 1/5/1993 7/10/2007 23 10 57% 1 0.0367 0.212 0.032 0.1 0.0715 0.0451 63 45 0.124 No Trend 0.0947 - 0.252YesR19-M02B (4) Metals/Inorganics T AMMONIA MG/L 8/14/1996 7/10/2007 23 19 17% 0 0.12 0.17 0.11 0.46 0.124 0.013 10 - - - <0.2 - - -<25% detection rate in baseline samplesR19-M02B (4) Metals/Inorganics T ARSENIC MG/L 1/5/1993 7/10/2007 24 7 71% 0 0.001 0.0057 0.00085 0.01 0.00273 0.00157 58 -87 0.017 No Trend 0.00071 -0.00901 NoR19-M02B (4) Metals/Inorganics T CHLORIDE MG/L 4/5/1989 7/6/2006 50 0 100% 2 2 22.3 - - 13.5 3.8 28 -450 0.000Downward77 - - -No trend for all dataR19-M02B (4) Metals/Inorganics T CYANIDE MG/L 7/12/1989 7/10/2007 37 37 0% 0 - - 0.004 0.025----- -<0.005 - - -All baseline samples are nondetectsR19-M02B (4) Metals/Inorganics T LEAD MG/L 1/5/1993 7/10/2007 24 9 63% 0 0.00032 0.0068 0.0011 0.005 0.00154 0.00144 94 -1 0.500 No Trend 0.00048 - 0.00730 NoR19-M02B (4) Metals/Inorganics T NITRATE MG/L 8/14/1996 7/10/2007 22 4 82% 1 0.042 0.86 0.04 0.4 0.345 0.243 70 -22 0.278 No Trend 0.14 B - 1.32 NoR19-M02B (4) Metals/Inorganics T SODIUM MG/L 1/5/1993 1/18/2007 23 0 100% 1 2.53 20.3 - - 8.95 3.12 35 -120 0.001Downward44.9 - - -No trend for all dataR19-M02B (4) Metals/Inorganics T SULFATE MG/L 7/12/1989 7/6/2006 35 0.5 99% 2 14.6 110 - - 49.8 18.3 37 -260 0.000Downward154 - - -No trend for all dataR19-M02B (5) Indicators T TOTAL ORGANIC CARBON MG/L 4/5/1989 7/10/2007 49 5.75 88% 3 0.6 10.5 1 1 2.10 2.20 105 -44 0.354 No Trend 0.92 - 10.9 NoR19-M02B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 4/5/1989 7/10/2007 51 25.5 50% 1 0.006 0.15 0.01 0.035 0.0273 0.0302 111 -181 0.017 No Trend 0.051 - 0.148YesR19-M02B (5) Indicators T TOTAL PHENOLS MG/L 4/5/1989 7/10/2007 52 45 13% 0 0.004 0.0175 0.004 0.05 0.00529 0.00293 55 - - - <0.015 - - -<25% detection rate in baseline samplesR19-M02B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 7/19/1993 7/10/2007 36 0 100% 0 1 5.97 - - 2.86 1.13 40 60 0.212 No Trend 0.62 -1.66 - NoR19-M02B (6) Field T PH STD UNITS 4/5/1989 7/10/2007 50 0 100% 2 4.62 6.72 - - 5.71 0.37 7 152 0.103 No Trend 5.43 4.21 7.20 NoR19-M02B (6) Field T REDOX (FIELD) MV 1/10/1995 7/10/2007 27 0 100% 1 7.7 391.5 - - 137 80 59 21 0.340 No Trend 69.8 -184 459 NoR19-M02B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 4/5/1989 7/6/2006 48 0 100% 4 97.6 295 - - 200 48 24 -455 0.000Downward724 - - -No trend for all dataBaseline Data (Excluding Outliers and Post-baseline Results)Trend Anaysis on Baseline Data- MannKendall Trend Test (=1%)Control Chart AnalysisBaseline Sample Date Range Sample Counts Exploratory Data Analysis8/23/2013Page 1 of 3ChambersWorks_ResultTables-forAppendices.xlsxSTATISTICAL EVALUATION RESULTS FOR THE SECURE C LANDFILL DETECTION MONITORING PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMinDetectedMaxDetectedMin MDL ofNDsMax MDLof NDsMean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControlLimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesBaseline Data (Excluding Outliers and Post-baseline Results)Trend Anaysis on Baseline Data- MannKendall Trend Test (=1%)Control Chart AnalysisBaseline Sample Date Range Sample Counts Exploratory Data AnalysisR19-M02B (6) Field T TEMPERATURE (FIELD) DEGREES C 7/19/1993 7/10/2007 36 0 100% 0 7.8 21.5 - - 15.5 3.9 25 -52 0.245 No Trend 14.75 -0.131 31.1 NoS19-M01B (1) VOCs T BENZENE MG/L 5/1/1989 7/10/2007 52 51 2% 0 0.001 0.001 0.0005 0.005 0.00124 0.00094 76 - - - <0.0005 - - -<25% detection rate in baseline samplesS19-M01B (1) VOCs T CHLOROBENZENE MG/L 5/1/1989 7/10/2007 52 52 0% 0 - - 0.0008 0.006----- -<0.0008 - - -All baseline samples are nondetectsS19-M01B (1) VOCs T CHLOROFORM MG/L 5/1/1989 7/10/2007 52 52 0% 0 - - 0.0008 0.005----- -<0.0008 - - -All baseline samples are nondetectsS19-M01B (1) VOCs T METHYLENE CHLORIDE MG/L 5/1/1989 7/10/2007 51 47 8% 0 0.00196 0.0147 0.001 0.005 0.00243 0.00219 90 - - - <0.002 - - -<25% detection rate in baseline samplesS19-M01B (1) VOCs T TOLUENE MG/L 5/1/1989 7/10/2007 52 50 4% 0 0.00126 0.002 0.0007 0.006 0.00128 0.00013 10 - - - <0.0007 - - -<25% detection rate in baseline samplesS19-M01B (1) VOCs T TRICHLOROETHENE MG/L 5/1/1989 7/10/2007 52 51 2% 0 0.001 0.001 0.001 0.005 0.000888 0.000624 70 - - - <0.001 - - -<25% detection rate in baseline samplesS19-M01B (2) SVOCs T 1,2,4-TRICHLOROBENZENE MG/L 8/8/1989 7/10/2007 39 39 0% 0 - - 0.001 0.01----- -<0.0005 - - -All baseline samples are nondetectsS19-M01B (2) SVOCs T 1,2-DICHLOROBENZENE MG/L 8/8/1989 7/10/2007 39 38 3% 0 0.007 0.007 0.001 0.01 0.00113 0.00154 136 - - - <0.0005 - - -<25% detection rate in baseline samplesS19-M01B (2) SVOCs T 1,2-DICHLOROPROPANE MG/L 5/1/1989 7/10/2007 40 40 0% 0 - - 0.001 0.006----- -<0.001 - - -All baseline samples are nondetectsS19-M01B (2) SVOCs T 1,4-DICHLOROBENZENE MG/L 8/8/1989 7/10/2007 39 39 0% 0 - - 0.001 0.01----- -<0.0005 - - -All baseline samples are nondetectsS19-M01B (2) SVOCs T 4-CHLOROANILINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.001 0.01----- -<0.0005 - - -All baseline samples are nondetectsS19-M01B (2) SVOCs T ANILINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.001 0.01----- -<0.0005 - - -All baseline samples are nondetectsS19-M01B (2) SVOCs T ETHYLBENZENE MG/L 5/1/1989 7/10/2007 40 40 0% 0 - - 0.0008 0.0072----- -<0.0008 - - -All baseline samples are nondetectsS19-M01B (2) SVOCs T NAPHTHALENE MG/L 8/8/1989 7/10/2007 39 34 13% 0 0.001 0.49 0.001 0.01 0.0176 0.0784 445 - - - <0.0001 - - -<25% detection rate in baseline samplesS19-M01B (2) SVOCs T N-NITROSODIMETHYLAMINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.001 0.01----- -<0.002 - - -All baseline samples are nondetectsS19-M01B (2) SVOCs T O-TOLUIDINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.001 0.01----- -<0.0005 - - -All baseline samples are nondetectsS19-M01B (2) SVOCs T XYLENES MG/L 4/5/1994 7/10/2007 21 21 0% 0 - - 0.0008 0.005----- -<0.0008 - - -All baseline samples are nondetectsS19-M01B (4) Metals/Inorganics T ALUMINUM MG/L 8/14/1996 7/10/2007 22 13 41% 1 0.029 0.0923 0.032 0.0802 0.0446 0.0201 45 -44 0.114 No Trend 0.111 - 0.125YesS19-M01B (4) Metals/Inorganics T AMMONIA MG/L 8/14/1996 7/10/2007 23 22 4% 0 0.15 0.15 0.11 0.46 0.0980 0.0485 49 - - - <0.2 - - -<25% detection rate in baseline samplesS19-M01B (4) Metals/Inorganics T ARSENIC MG/L 8/14/1996 7/10/2007 23 20 13% 0 0.00091 0.0013 0.00067 0.0021 0.000960 0.000116 12 - - - 0.00051 - - -<25% detection rate in baseline samplesS19-M01B (4) Metals/Inorganics T CHLORIDE MG/L 5/1/1989 7/10/2007 52 0 100% 0 8 34 - - 16.9 7.5 44 791 0.000Upward34.2 - - -Upward trend for all dataS19-M01B (4) Metals/Inorganics T CYANIDE MG/L 8/8/1989 7/10/2007 37 36 3% 0 0.0071 0.0071 0.004 0.025 0.00469 0.00428 91 - - - <0.005 - - -<25% detection rate in baseline samplesS19-M01B (4) Metals/Inorganics T LEAD MG/L 8/14/1996 7/10/2007 23 17 26% 0 0.00041 0.0033 0.00018 0.0019 0.000836 0.000890 106 -15 0.357 No Trend 0.00025 - 0.00439 NoS19-M01B (4) Metals/Inorganics T NITRATE MG/L 8/14/1996 7/10/2007 23 5 78% 0 0.098 0.79 0.03 0.04 0.372 0.245 66 84 0.014 No Trend 0.091 B - 1.35 NoS19-M01B (4) Metals/Inorganics T SODIUM MG/L 8/14/1996 7/10/2007 23 0 100% 0 5.9 13.8 - - 8.27 2.06 25 136 0.000Upward17.1 - - -Upward trend for all dataS19-M01B (4) Metals/Inorganics T SULFATE MG/L 8/8/1989 7/10/2007 37 0 100% 0 36 130 - - 65.8 24.3 37 -85 0.137 No Trend 94.2 - 163 NoS19-M01B (5) Indicators T TOTAL ORGANIC CARBON MG/L 5/1/1989 7/10/2007 49 2 96% 3 1 5.35 1 1 2.44 1.00 41 -90 0.221 No Trend 1.9 - 6.43 NoS19-M01B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 5/1/1989 7/10/2007 49 21.25 57% 3 0.006 0.0715 0.012 0.035 0.0252 0.0159 63 -146 0.053 No Trend 0.11 - 0.0888YesS19-M01B (5) Indicators T TOTAL PHENOLS MG/L 5/1/1989 7/10/2007 52 46 12% 0 0.004 0.1 0.004 0.05 0.00757 0.01440 190 - - - <0.015 - - -<25% detection rate in baseline samplesS19-M01B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 7/22/1993 7/10/2007 35 0 100% 0 1.11 5.8 - - 3.03 1.09 36 -267 0.000Downward0.88 - - -Downward trend for all dataS19-M01B (6) Field T PH STD UNITS 5/1/1989 7/10/2007 51 0 100% 0 4.54 6.53 - - 5.57 0.39 7 1 0.500 No Trend 4.99 4.00 7.14 NoS19-M01B (6) Field T REDOX (FIELD) MV 1/10/1995 7/10/2007 27 0 100% 1 17.4 435.7 - - 166 96 58 -11 0.418 No Trend 146.8 -216 549 NoS19-M01B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 5/1/1989 7/10/2007 51 0 100% 0 0.332 403 - - 223 74 33 269 0.015 No Trend 485 - 519YesS19-M01B (6) Field T TEMPERATURE (FIELD) DEGREES C 7/22/1993 7/10/2007 35 0 100% 0 6.3 21.8 - - 15.3 4.3 28 -14 0.427 No Trend 15.04 -1.77 32.3 NoS19-M02B (1) VOCs T BENZENE MG/L 6/5/1989 7/10/2007 52 52 0% 0 - - 0.0005 0.005----- -<0.0005 - - -All baseline samples are nondetectsS19-M02B (1) VOCs T CHLOROBENZENE MG/L 6/5/1989 7/10/2007 52 52 0% 0 - - 0.0008 0.006----- -<0.0008 - - -All baseline samples are nondetectsS19-M02B (1) VOCs T CHLOROFORM MG/L 6/5/1989 7/10/2007 52 50 4% 0 0.0182 0.076 0.0008 0.005 0.0193 0.0079 41 - - - <0.0008 - - -<25% detection rate in baseline samplesS19-M02B (1) VOCs T METHYLENE CHLORIDE MG/L 6/5/1989 7/10/2007 51 46 10% 0 0.00235 0.00939 0.001 0.005 0.00272 0.00133 49 - - - <0.002 - - -<25% detection rate in baseline samplesS19-M02B (1) VOCs T TOLUENE MG/L 6/5/1989 7/10/2007 52 50 4% 0 0.000528 0.00251 0.0007 0.006 0.000592 0.000350 59 - - - <0.0007 - - -<25% detection rate in baseline samplesS19-M02B (1) VOCs T TRICHLOROETHENE MG/L 6/5/1989 7/10/2007 52 50 4% 0 0.0127 0.043 0.001 0.005 0.0133 0.0042 31 - - - <0.001 - - -<25% detection rate in baseline samplesS19-M02B (2) SVOCs T 1,2,4-TRICHLOROBENZENE MG/L 9/12/1989 7/10/2007 39 39 0% 0 - - 0.001 0.01----- -<0.0005 - - -All baseline samples are nondetectsS19-M02B (2) SVOCs T 1,2-DICHLOROBENZENE MG/L 9/12/1989 7/10/2007 39 39 0% 0 - - 0.001 0.01----- -<0.0005 - - -All baseline samples are nondetectsS19-M02B (2) SVOCs T 1,2-DICHLOROPROPANE MG/L 6/5/1989 7/10/2007 40 40 0% 0 - - 0.001 0.006----- -<0.001 - - -All baseline samples are nondetectsS19-M02B (2) SVOCs T 1,4-DICHLOROBENZENE MG/L 9/12/1989 7/10/2007 39 39 0% 0 - - 0.001 0.01----- -<0.0005 - - -All baseline samples are nondetectsS19-M02B (2) SVOCs T 4-CHLOROANILINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.001 0.011----- -<0.0005 - - -All baseline samples are nondetectsS19-M02B (2) SVOCs T ANILINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.001 0.011----- -<0.0005 - - -All baseline samples are nondetectsS19-M02B (2) SVOCs T ETHYLBENZENE MG/L 6/5/1989 7/10/2007 40 40 0% 0 - - 0.0008 0.0072----- -<0.0008 - - -All baseline samples are nondetectsS19-M02B (2) SVOCs T NAPHTHALENE MG/L 9/12/1989 7/10/2007 39 39 0% 0 - - 0.001 0.01----- -<0.0001 - - -All baseline samples are nondetectsS19-M02B (2) SVOCs T N-NITROSODIMETHYLAMINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.001 0.011----- -<0.002 - - -All baseline samples are nondetectsS19-M02B (2) SVOCs T O-TOLUIDINE MG/L 10/3/1989 7/10/2007 38 38 0% 0 - - 0.001 0.011----- -<0.0005 - - -All baseline samples are nondetectsS19-M02B (2) SVOCs T XYLENES MG/L 4/5/1994 7/10/2007 21 21 0% 0 - - 0.0008 0.005----- -<0.0008 - - -All baseline samples are nondetectsS19-M02B (4) Metals/Inorganics T ALUMINUM MG/L 8/14/1996 7/10/2007 22 5 77% 1 0.059 0.23 0.032 0.057 0.113 0.057 51 -19 0.308 No Trend <0.0743 - 0.341NoS19-M02B (4) Metals/Inorganics T AMMONIA MG/L 8/14/1996 7/10/2007 23 21 9% 0 0.18 0.26 0.11 0.46 0.184 0.017 9 - - - <0.2 - - -<25% detection rate in baseline samplesS19-M02B (4) Metals/Inorganics T ARSENIC MG/L 8/14/1996 7/10/2007 23 18 22% 0 0.0013 0.0038 0.00066 0.0021 0.00149 0.00054 36 - - - <0.0004 - - -<25% detection rate in baseline samplesS19-M02B (4) Metals/Inorganics T CHLORIDE MG/L 6/5/1989 7/10/2007 52 0 100% 0 4.1 59.2 - - 23.8 11.7 49 496 0.000Upward147 - - -Upward trend for all dataS19-M02B (4) Metals/Inorganics T CYANIDE MG/L 9/12/1989 7/10/2007 37 37 0% 0 - - 0.004 0.025----- -<0.005 - - -All baseline samples are nondetectsS19-M02B (4) Metals/Inorganics T LEAD MG/L 8/14/1996 7/10/2007 23 14 39% 0 0.00022 0.0031 0.00099 0.0019 0.000984 0.000913 93 11 0.397 No Trend 0.00019 - 0.00463 NoS19-M02B (4) Metals/Inorganics T NITRATE MG/L 8/14/1996 7/10/2007 23 1 96% 0 0.206 2.56 0.4 0.4 1.11 0.69 62 -109 0.002Downward0.73 - - -Downward trend for all dataS19-M02B (4) Metals/Inorganics T SODIUM MG/L 8/14/1996 7/10/2007 23 0 100% 0 2.5 27.9 - - 14.5 5.2 36 35 0.187 No Trend 39.3 - 35.1YesS19-M02B (4) Metals/Inorganics T SULFATE MG/L 9/12/1989 7/10/2007 36 0 100% 1 30.7 215 - - 83.9 44.8 53 -62 0.204 No Trend 47.1 - 263 NoS19-M02B (5) Indicators T TOTAL ORGANIC CARBON MG/L 3/6/1989 7/10/2007 53 0.5 99% 0 0.9 6.4 - - 2.58 1.30 50 390 0.001Upward0.63 - - -Upward trend for all dataS19-M02B (5) Indicators T TOTAL ORGANIC HALOGEN MG/L 3/6/1989 7/10/2007 50 22 56% 3 0.00475 0.0603 0.005 0.035 0.0228 0.0150 66 -68 0.239 No Trend 0.028 - 0.0828YesS19-M02B (5) Indicators T TOTAL PHENOLS MG/L 3/6/1989 7/10/2007 53 45 15% 0 0.004 0.212 0.001 0.05 0.00931 0.02830 304 - - - <0.015 - - -<25% detection rate in baseline samplesS19-M02B (6) Field T DISSOLVED OXYGEN (FIELD) MG/L 7/22/1993 7/10/2007 34 0 100% 1 1.55 5.42 - - 3.58 1.02 29 -88 0.100 No Trend 1.09 -0.510 -YesS19-M02B (6) Field T PH STD UNITS 3/6/1989 7/10/2007 52 0 100% 0 5.01 7.9 - - 5.68 0.65 11 -51 0.347 No Trend 5.3 3.10 8.26 NoS19-M02B (6) Field T REDOX (FIELD) MV 1/10/1995 7/10/2007 27 0 100% 1 23.9 473.6 - - 168 97 58 -70 0.076 No Trend 162.7 -220 557 No8/23/2013Page 2 of 3ChambersWorks_ResultTables-forAppendices.xlsxSTATISTICAL EVALUATION RESULTS FOR THE SECURE C LANDFILL DETECTION MONITORING PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMinDetectedMaxDetectedMin MDL ofNDsMax MDLof NDsMean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControlLimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesBaseline Data (Excluding Outliers and Post-baseline Results)Trend Anaysis on Baseline Data- MannKendall Trend Test (=1%)Control Chart AnalysisBaseline Sample Date Range Sample Counts Exploratory Data AnalysisS19-M02B (6) Field T SPECIFIC CONDUCTANCE UMHOS/CM 3/6/1989 7/10/2007 51 0 100% 1 0.425 445 - - 266 100 38 167 0.089 No Trend 827 - 668YesS19-M02B (6) Field T TEMPERATURE (FIELD) DEGREES C 7/22/1993 7/10/2007 35 0 100% 0 5.26 21.6 - - 15.2 3.9 25 -6 0.472 No Trend 14.24 -0.232 30.6 NoNotes:(1) The average value of normal sample and field duplicate is used as a single data point. Similarly, the average value of samples collected from the same well on the same date is used as a single data point.(2) For data sets with non-detects (but with at least two or more detected results), the mean and standard deviation were estimated by the Kaplan-Meier method. Otherwise, the convention of using one-half the method detection limit (MDL) for non-detectswas used to complete the calculation of summary statistics.(3) The Mann-Kendall trend test is performed at a 1% significance level on baseline data, excluding outliers.(4) Only statistical significant upward/downward trend result is shown under "Trend Test Result". Insignificant trend test result is indicated as "No Trend". An "-" indicates the trend test is not performed.(5) Out-of-control (OOC) condition is only evaluated for sample results collected in the second half of 2011.(6) Control limits are determined to test the upper bound for all analytes, except for dissolved oxygen, for which the lower bound is tested. For pH, temperature, and redox, 2-sided (upper and lower) limits are used.8/23/2013Page 3 of 3ChambersWorks_ResultTables-forAppendices.xlsx0 1 2 3 4 5 6 7 8 9

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 Std. Units

Year Program=(7) Secure C Landfill Detection, Well=R19

- M01B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=pH, Total/Dissolved=T, Units=Std. Units

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-400

-300 -200 -100 0 100 200 300 400 500 600 700

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mV

Year Program=(7) Secure C Landfill Detection, Well=R19

- M01B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Redox, Total/Dissolved=T, Units=mV

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 umhos/cm

Year Program=(7) Secure C Landfill Detection, Well=R19

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(6) Field,
Analyte=Spec Cond, Total/Dissolved=T, Units=umhos/cm

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 5 10 15 20 25 30 35

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 ° C

Year Program=(7) Secure C Landfill Detection, Well=R19

- M01B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Temp, Total/Dissolved=T, Units= ° C

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.05 0.1 0.15 0.2 0.25 0.3

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=R19

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOX, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 1 2 3 4 5 6 7 8 9

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 Std. Units

Year Program=(7) Secure C Landfill Detection, Well=R19

- M01B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=pH, Total/Dissolved=T, Units=Std. Units

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-300

-200 -100 0 100 200 300 400 500

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mV

Year Program=(7) Secure C Landfill Detection, Well=R19

- M02B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Redox, Total/Dissolved=T, Units=mV

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 2 4 6 8 10 12

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=R19

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOC, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=R19

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOX, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 1 2 3 4 5 6 7 8

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 Std. Units

Year Program=(7) Secure C Landfill Detection, Well=R19

- M02B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=pH, Total/Dissolved=T, Units=Std. Units

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-300

-200 -100 0 100 200 300 400 500 600

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mV

Year Program=(7) Secure C Landfill Detection, Well=S19

- M01B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Redox, Total/Dissolved=T, Units=mV

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 1 2 3 4 5 6 7 8

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=S19

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOC, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=S19

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOX, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

-10 -8 -6 -4 -2 0 2 4 6 8 10 12

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=S19

- M02B,
Statistical Test=One Sided LowerAnalyte Group=(6) Field,
Analyte=DO, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline-300

-200 -100 0 100 200 300 400 500 600

95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mV

Year Program=(7) Secure C Landfill Detection, Well=S19

- M02B,
Statistical Test=Two SidedAnalyte Group=(6) Field,
Analyte=Redox, Total/Dissolved=T, Units=mV

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

500 1000 1500 2000 2500 3000 3500 4000

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 umhos/cm

Year Program=(7) Secure C Landfill Detection, Well=S19

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(6) Field,
Analyte=Spec Cond, Total/Dissolved=T, Units=umhos/cm

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.02 0.04 0.06 0.08 0.1 0.12

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=S19

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(5) Indicators,
Analyte=TOX, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mg/l

Year Program=(7) Secure C Landfill Detection, Well=R19

- M01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=aluminum, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 0.0016

96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=S19

- M01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=arsenic, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 50 100 150 200 250

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=R19

- M01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=chloride, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.5 1 1.5 2 2.5 3

96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=R19

- M01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=nitrate, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 2 4 6 8 10 12 14

93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 mg/l

Year Program=(7) Secure C Landfill Detection, Well=R19

- M02B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=aluminum, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.2 0.4 0.6 0.8 1 1.2 1.4

96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=R19

- M02B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=nitrate, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.05 0.1 0.15 0.2 0.25 0.3 0.35

96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=S19

- M01B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=aluminum, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4

96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=S19

- M02B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=aluminum, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

50 100 150 200 250 300

89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 mg/l

Year Program=(7) Secure C Landfill Detection, Well=S19

- M02B, Statistical Test=One Sided HigherAnalyte Group=(4) Metals/Inorganics,
Analyte=sulfate, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

# Appendix D

Statistical Evaluation Results, Time-Series Plots, and Control Chart Analysis for the PFOA Monitoring ProgramDuPont Chambers Works Complex Semi-Annual Statistical Review of Groundwater Monitoring Results

1 st Half 2013 

### Appendix D

Appendix D PFOA Monitoring Program D-1

Fort Washington, PA 

# Monitoring Well Summary: PFOA Monitoring Program

AA22-M01B

No statistically significant trends were obser ved. Two parameters were determined to be out-of-control, including perfluorobutanoi c acid (CUSUM) and pe rfluoroheptanoic acid
(CUSUM/measured value).

AA25-M01B

Statistically significant trends were not identified for any of the well parameters.
Perfluorobutanoic acid (CUSUM) was de termined to be out-of-control.

AA25-M01C

All tested parameters are statistically consistent with baseline levels.

C08-M01B

Statistically significant trends were not identified for any of the well parameters.
Perfluorobutane sulfonic acid (CUSUM/measured value) was determined to be out-ofcontrol.

C11-M01C

All tested parameters are statistically consistent with baseline levels.

C11-M01E

All tested parameters are statistically consistent with baseline levels.

C11-M02D

Statistically significant trends were not identified for any of the well parameters.
Perfluoroundecanoic acid (CUS UM) and PFOS (CUSUM) were determined to be out-ofcontrol.

C11-M03B

Downward trends were identified fo r perfluorobutane sulfonic acid and perfluoropentanoic acid with the Mann-Kenda ll test. In addition, perfluorododecanoic
acid (CUSUM/measured value) was de termined to be out-of-control.

D06-M01B

Upward trends were identified for perfluor ododecanoic acid and PFOS. No parameters

were determined to be out-of-control with the combined Shewhart-CUSUM procedure.DuPont Chambers Works Complex Semi-Annual Statistical Review of Groundwater Monitoring Results

1 st Half 2013 

### Appendix D

Appendix D PFOA Monitoring Program D-2

Fort Washington, PA 

### D15-M01B

All tested parameters are statistically consistent with baseline levels.

F07-M01B

All tested parameters are statistically consistent with baseline levels.

F08-M01A

Statistically significant trends were not identified for any of the well parameters.
Perfluorobutanoic (CUSUM/measured va lue) and perfluorododecanoic acid
(CUSUM/measured value) were determined to be out-of-control by the combined Shewhart-CUSUM control chart procedure.

F08-M01B

Statistically significant trends were not identified for any of the well parameters. Perfluorobutanoic acid (CUSUM) and perf luorododecanoic acid (CUSUM/measured
value) were determined to be out-of-contro l by the combined Shewhart-CUSUM control chart procedure.

G04-M01B

All tested parameters are statistically consistent with baseline levels.

G04-M01E

A downward trend was concluded for PFOA. None of the well parameters were

determined to be out-of-control.

G05-M02B
Statistically significant trends were not identified for any of the well parameters.
Perfluorodecanoic acid (CUSUM/measured valu e) was determined to be out-of-control by the combined Shewhart-CUSUM control chart procedure.

G09-M01A
Statistically significant trends were not identified for any of the well parameters.
Perfluorodecanoic acid (CUSUM/measured va lue) and perfluorohexanoic acid (CUSUM) were determined to be out-of-control by th e combined Shewhart-CUSUM control chart procedure.

J05-M01C

Statistically significant trends were not identified for any of the well parameters.
Perfluorodecanoic acid (CUSUM) was determin ed to be out-of-control by the combined

Shewhart-CUSUM control chart.

J10-M02B

Baseline sample collection is still in progress for this well. As such, no statistical

evaluation was conducted.DuPont Chambers Works Complex Semi-Annual Statistical Review of Groundwater Monitoring Results

1 st Half 2013 

### Appendix D

Appendix D PFOA Monitoring Program D-3

Fort Washington, PA 

### K12-M01A

Statistically significant trends were not identified for any of the well parameters.
Perfluorodecanoic acid (CUSUM) and PFOA (C USUM) were determined to be out-ofcontrol by the combined Shewhart-C USUM control chart procedure.

K13-M02B

All tested parameters are statistically consistent with baseline levels.

L09-M01B

A statistically significant upward trend wa s identified for perfluorononanoic acid. The combined Shewhart-CUSUM procedure indi cates that perfluor obutane sulfonic acid (CUSUM/measured value), perfluorobutanoi c acid (CUSUM), perf luorohexanoic acid
(CUSUM), and PFOA (CUSUM) are out-of-control.

L09-M01C

Statistically significant trends were not identified for any of the well parameters.
Perfluorobutane sulfonic acid ((CUSUM/m easured value), perfluoroundecanoic acid
(CUSUM) and PFOS (CUSUM) were determined to be out-of-control by the combined Shewhart-CUSUM control chart procedure.

L09-M01D

Statistically significant trends were not identified for any of the well parameters. Perfluoroheptanoic acid (CUSUM/measured va lue), perfluorohexanoic acid (CUSUM), and perfluorononanoic acid (CUSUM) were de termined to be out-of-control by the

combined Shewhart-CUSUM control chart procedure.

N08-M01B

Statistically significant trends were not identified for any of the well parameters. The combined Shewhart-CUSUM procedure indi cates that perfluorobutanoic acid (CUSUM) and perfluoroundecanoic acid (CUSUM/measured value) are out-of-control.

N08-M01C

An upward trend was identified for perfl uoroheptanoic acid using the Mann-Kendall analysis of the combined baseline and cu rrent monitoring data sets. The combined Shewhart-CUSUM procedure indicates that perfluorobutan e sulfonic acid (CUSUM/measured value), perfluorodecanoic acid (CUSUM), perfluoroundecanoic acid
(CUSUM/measured value), and PFOS (CUSUM /measured value) are out-of-control.

N08-M01D

An upward trend was identified for perfl uorohexanoic acid using the Mann-Kendall analysis of the combined baseline and curre nt monitoring data sets. Perfluoroheptanoic acid (CUSUM) and perfluoroundecanoic ac id (CUSUM/measured value) wereDuPont Chambers Works Complex Semi-Annual Statistical Review of Groundwater Monitoring Results

1 st Half 2013 

### Appendix D

Appendix D PFOA Monitoring Program D-4

Fort Washington, PA 

### determined to be out-of-control based on th e combine Shewhart-CUSUM control chart procedure.

P06-M01B

All tested parameters are statistically consistent with baseline levels.

P06-M01D

Statistically significant trends were not identified for any of the well parameters. Perfluorodecanoic acid (CUSUM), perf luoroheptanoic acid (CUSUM), and perfluorononanoic acid (CUSUM) were dete rmined to be out-of-control with the

combined Shewhart-CUSUM control chart procedure.

P06-M01E

Upward trends were identified for perfluor obutanoic acid and perf luoropentanoic acid. Perfluoroheptanoic acid (CUSUM/measur ed value), perfluorononanoic acid
(CUSUM/measured value), and PFOA (CUSUM/meas ured value) were determined to be

out-of-control with the combined Shew hart-CUSUM control chart procedure.

P06-M02C

Statistically significant trends were not identified for any of the well parameters.
Perfluorononanoic acid (CUSUM/measured valu e) was determined to be out-of-control

based with the combined Shewhart -CUSUM control chart procedure.

P21-M01B

All tested parameters are statistically consistent with baseline levels.

R09-M02B

Statistically significant trends were not identified for any of the well parameters. Perfluorobutanoic acid (CUSUM), pe rfluorononanoic acid (CUSUM), and perfluoropentanoic acid (CUSUM ) were determined to be out-of-control based on the

combined Shewhart-CUSUM c ontrol chart procedure.

R10-M01C

Statistically significant trends were not identified for any of the well parameters.
Perfluorobutanoic acid (CUSUM) and PFOA (C USUM) were determined to be out-ofcontrol based on the combined Shewhart -CUSUM control chart procedure.

R10-M01E

All tested parameters are statistically consistent with baseline levels.DuPont Chambers Works Complex Semi-Annual Statistical Review of Groundwater Monitoring Results

1 st Half 2013 

### Appendix D

Appendix D PFOA Monitoring Program D-5

Fort Washington, PA 

### Z28-M01B

Statistically significant trends were not iden tified for any of the well parameters. PFOS
(CUSUM/measured value) was determined to be out-of-control based on the combined Shewhart-CUSUM control chart procedure.STATISTICAL EVALUATION RESULTS FOR THE PFOA MONITORING PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMin Detected Max DetectedMin MDL ofNDsMax MDL of NDs Mean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControl LimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesAA22-M01B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.000002 0.0000059 - - - - - - <0.000002 - - -All baseline samples are nondetectsAA22-M01B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.000082 0.00021 - - 0.000156 0.000038 24 9 0.160 No Trend 0.00033 - 0.000345YesAA22-M01B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.000012 0.000064 - - 2.93E-05 1.66E-05 56 -14 0.054 No Trend 0.000015 - 0.000112 NoAA22-M01B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.000001 0.0000029 - - - - - - <0.000001 - - -All baseline samples are nondetectsAA22-M01B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.0003 0.00044 - - 0.000358 0.000047 13 10 0.138 No Trend 0.00063 - 0.000591YesAA22-M01B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.000002 0.0000059 - - - - - - 0.0000027 - - -All baseline samples are nondetectsAA22-M01B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.000463 0.00076 - - 0.000591 0.000114 19 10 0.138 No Trend 0.00073 - 0.00116 NoAA22-M01B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.000035 0.0000851 - - 5.76E-05 1.79E-05 31 -14 0.054 No Trend 0.000057 - 0.000147 NoAA22-M01B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.00000095 0.000003 - - - - - - <0.000001 - - -All baseline samples are nondetectsAA22-M01B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.00031 0.000547 - - 0.000403 0.000074 18 6 0.274 No Trend 0.00045 - 0.000776 NoAA22-M01B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.000001 0.0000029 - - - - - - <0.000001 - - -All baseline samples are nondetectsAA22-M01B (8) PFCs T PFOA MG/L 8/10/2006 8/4/2010 9 0 100% 0 0.00057 0.00089 - - 0.000648 0.000107 16 5 0.336 No Trend 0.00099 - 0.00118 NoAA22-M01B (8) PFCs T PFOS MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.000002 0.0000059 - - - - - - 0.0000044 - - -All baseline samples are nondetectsAA25-M01B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.000002 0.00000221 - - - - - - <0.000002 - - -All baseline samples are nondetectsAA25-M01B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.000032 0.000053 - - 4.27E-05 8.06E-06 19 8 0.199 No Trend 0.000077 -8.30E-05YesAA25-M01B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/30/2007 8/4/2010 8 1 88% 0 0.0000015 0.00000618 0.000001 0.000001 3.29E-06 2.02E-06 61 -6 0.274No Trend 0.0000036 - 1.34E-05 NoAA25-M01B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.00000099 0.0000011 - - - - - - <0.000001 - - -All baseline samples are nondetectsAA25-M01B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.000073 0.00011 - - 9.18E-05 1.54E-05 17 -9 0.160 No Trend 0.00011 -0.000169 NoAA25-M01B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.000003 0.0000159 - - 7.85E-06 4.23E-06 54 -14 0.054 No Trend 0.0000078 - 2.90E-05 NoAA25-M01B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.00011 0.00022 - - 0.000159 0.000043 27 2 0.452 No Trend 0.00022 - 0.000374 NoAA25-M01B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.0000241 0.000036 - - 2.92E-05 3.81E-06 13 6 0.274 No Trend 0.000038- 4.82E-05 NoAA25-M01B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 9.02E-07 0.0000025 - - - - - - <0.000001 - - -All baseline samples are nondetectsAA25-M01B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.000085 0.000162 - - 0.000116 0.000026 22 -3 0.401 No Trend 0.00014- 0.000246 NoAA25-M01B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.00000099 0.00000129 - - - - - - <0.000001 - - -All baseline samples are nondetectsAA25-M01B (8) PFCs T PFOA MG/L 8/10/2006 8/4/2010 9 0 100% 0 0.00013 0.00029 - - 0.000192 0.000058 30 -5 0.336 No Trend 0.00022 - 0.000481 NoAA25-M01B (8) PFCs T PFOS MG/L 1/30/2007 8/4/2010 8 7 13% 0 0.00000242 0.00000242 0.000002 0.0000022 1.20E-06 4.96E-07 41 - - - 0.000012 - - -<25% detection rate in baseline samplesAA25-M01C (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.000002 0.00000223 - - - - - - <0.0000018 - - -All baseline samples are nondetectsAA25-M01C (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/30/2007 8/4/2010 8 7 13% 0 0.00000393 0.00000393 0.00000099 0.0000016 9.66E-07 1.20E-06 124 - -- <0.00000092 - - -<25% detection rate in baseline samplesAA25-M01C (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/30/2007 8/4/2010 8 6 25% 0 0.00000237 0.0000024 0.00000099 0.00000101 1.34E-06 6.04E-07 45 -9 0.160 No Trend <0.00000092 - 4.36E-06 NoAA25-M01C (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.00000099 0.00000101 - - - - - - <0.00000092 - - -All baseline samples are nondetectsAA25-M01C (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/30/2007 8/4/2010 8 7 13% 0 0.0000069 0.0000069 0.00000099 0.00000101 1.30E-06 2.26E-06 174 - -- <0.00000092 - - -<25% detection rate in baseline samplesAA25-M01C (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.000002 0.00000225 - - - - - - <0.0000018 - - -All baseline samples are nondetectsAA25-M01C (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 7/25/2007 8/4/2010 7 6 14% 1 0.000002 0.000002 0.00000099 0.0000034 8.86E-07 6.64E-07 75 - - - <0.00000092 - - -<25% detection rate in baseline samplesAA25-M01C (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/30/2007 8/4/2010 8 7 13% 0 0.0000037 0.0000037 0.00000099 0.00000101 9.00E-07 1.13E-06 126 - - -<0.00000092 - - -<25% detection rate in baseline samplesAA25-M01C (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 9.09E-07 0.0000025 - - - - - - <0.00000092 - - -All baseline samples are nondetectsAA25-M01C (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/30/2007 8/4/2010 8 7 13% 0 0.00000859 0.00000859 0.00000099 0.0000025 1.65E-06 2.82E-06 171 -- - <0.00000092 - - -<25% detection rate in baseline samplesAA25-M01C (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.00000099 0.0000013 - - - - - - <0.00000092 - - -All baseline samples are nondetectsAA25-M01C (8) PFCs T PFOA MG/L 8/10/2006 8/4/2010 8 4 50% 1 0.0000011 0.0000046 0.00000099 0.0000026 1.62E-06 1.15E-06 71 -6 0.274 No Trend <0.00000092 - 7.38E-06 NoAA25-M01C (8) PFCs T PFOS MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.000002 0.00000225 - - - - - - <0.0000018 - - -All baseline samples are nondetectsC08-M01B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/25/2007 7/14/2010 8 6 25% 0 0.000071 0.000076 0.000061 0.00015 6.73E-05 6.50E-06 10 0 0.548 No Trend 0.00039 - 9.97E-05YesC08-M01B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/25/2007 7/14/2010 8 0 100% 0 0.00066 0.0018 - - 0.00112 0.00037 33 -6 0.274 No Trend 0.0016 - 0.00296 NoC08-M01B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/25/2007 7/14/2010 8 0 100% 0 0.00016 0.00141 - - 0.000780 0.000451 58 -6 0.274 No Trend 0.0018 - 0.00304 NoC08-M01B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/25/2007 7/14/2010 8 8 0% 0 - - 0.00003 0.000077 - - - - - - <0.000033 - - -All baseline samples are nondetectsC08-M01B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/25/2007 7/14/2010 8 0 100% 0 0.0012 0.0028 - - 0.00193 0.00055 29 -22 0.002Downward0.0026 - - -No trend for all dataC08-M01B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/25/2007 7/14/2010 8 8 0% 0 - - 0.00006 0.00015 - - - - - - <0.000067 - - -All baseline samples are nondetectsC08-M01B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/25/2007 7/14/2010 8 0 100% 0 0.0039 0.0092 - - 0.00676 0.00161 24 -16 0.031 No Trend 0.0092 - 0.0148NoC08-M01B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/25/2007 7/14/2010 8 0 100% 0 0.00043 0.0014 - - 0.000905 0.000316 35 -6 0.274 No Trend 0.0016 - 0.00249 NoC08-M01B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/25/2007 7/14/2010 8 7 13% 0 0.000045 0.000045 0.00003 0.000077 2.68E-05 1.19E-05 45 - - - <0.000033 - - -<25% detection rate in baseline samplesC08-M01B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/25/2007 7/14/2010 8 0 100% 0 0.0013 0.00257 - - 0.00197 0.00048 24 -23 0.008Downward0.0024 - - -No trend for all dataC08-M01B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/25/2007 7/14/2010 8 8 0% 0 - - 0.00003 0.000077 - - - - - - 0.000048 - - -All baseline samples are nondetectsC08-M01B (8) PFCs T PFOA MG/L 5/2/2003 7/14/2010 10 0 100% 0 0.00504 0.033 - - 0.0173 0.0083 48 2 0.464 No Trend 0.02 - 0.0589 NoC08-M01B (8) PFCs T PFOS MG/L 5/2/2003 7/14/2010 9 9 0% 0 - - 0.00005 0.00015 - - - - - - <0.000067 - - -All baseline samples are nondetectsC11-M01C (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 7/16/2007 7/15/2010 7 4 43% 1 0.0000036 0.0000079 0.000002 0.0000048 3.59E-06 1.94E-06 54-1 0.500 No Trend <0.000002 - 1.33E-05 NoC11-M01C (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.000039 0.00027 - - 0.000125 0.000080 64 -6 0.274 No Trend 0.000075 -0.000528 NoC11-M01C (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/25/2007 2/4/2010 7 0 100% 1 0.000078 0.0005 - - 0.000317 0.000151 48 9 0.119 No Trend 0.00015 - 0.00107 NoC11-M01C (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/25/2007 7/15/2010 8 1 88% 0 0.0000093 0.000078 0.0000185 0.0000185 3.13E-05 2.19E-05 70 15 0.046 No Trend 0.000052 - 0.000141 NoC11-M01C (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.000061 0.00043 - - 0.000205 0.000110 54 -10 0.138 No Trend 0.000091 - 0.000755 NoC11-M01C (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/25/2007 7/15/2010 8 8 0% 0 - - 0.000002 0.0000418 - - - - - - <0.000002 - - -All baseline samples are nondetectsC11-M01C (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.00028 0.00198 - - 0.00103 0.00063 62 -18 0.016 No Trend 0.0003 - 0.00421 NoC11-M01C (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.000084 0.00033 - - 0.000169 0.000092 54 6 0.274 No Trend 0.000065 - 0.000630 NoC11-M01C (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/25/2007 7/15/2010 8 7 13% 0 0.0000016 0.0000016 0.00000099 0.0000169 2.07E-06 2.60E-06 126 - - - <0.00000098 - - -<25% detection rate in baseline samplesC11-M01C (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.00012 0.000608 - - 0.000320 0.000179 56 -16 0.031 No Trend 0.00013- 0.00122 NoC11-M01C (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/25/2007 7/15/2010 8 1 88% 0 0.000028 0.00016 0.0000242 0.0000242 5.98E-05 4.48E-05 75 18 0.016No Trend 0.000051 - 0.000284 NoC11-M01C (8) PFCs T PFOA MG/L 7/11/2006 7/15/2010 8 0 100% 1 0.00024 0.0012 - - 0.000806 0.000331 41 -4 0.360 No Trend 0.00021 - 0.00246 NoC11-M01C (8) PFCs T PFOS MG/L 7/16/2007 7/15/2010 7 4 43% 1 0.0000032 0.0000078 0.00000389 0.0000064 4.27E-06 1.69E-06 40 7 0.191 No Trend 0.0000025- 1.27E-05 NoC11-M01E (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/23/2007 7/15/2010 8 8 0% 0 - - 0.0000019 0.00000231 - - - - - - <0.000002 - - -All baseline samples are nondetectsC11-M01E (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/23/2007 7/15/2010 8 7 13% 0 0.0000028 0.0000028 0.00000097 0.00000117 7.97E-07 8.10E-07 102 - - -<0.000001 - - -<25% detection rate in baseline samplesC11-M01E (8) PFCs T PERFLUORODECANOIC ACID MG/L 7/24/2007 7/15/2010 7 6 14% 1 0.0000012 0.0000012 0.00000097 0.00000103 5.99E-07 2.65E-07 44 - - - <0.000001 - - -<25% detection rate in baseline samplesC11-M01E (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/23/2007 7/15/2010 8 8 0% 0 - - 0.00000097 0.00000103 - - - - - - <0.000001 - - -All baseline samples are nondetectsC11-M01E (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/23/2007 7/15/2010 8 7 13% 0 0.0000032 0.0000032 0.00000097 0.00000105 8.40E-07 9.54E-07 114 - -- <0.000001 - - -<25% detection rate in baseline samplesBaseline Data (Excluding Outliers and Post-baseline Results)Trend Anaysis on Baseline Data- MannKendall Trend Test (=1%)Control Chart AnalysisBaseline Sample Date Range Sample Counts Exploratory Data Analysis8/23/2013Page 1 of 7ChambersWorks_ResultTables-forAppendices.xlsxSTATISTICAL EVALUATION RESULTS FOR THE PFOA MONITORING PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMin Detected Max DetectedMin MDL ofNDsMax MDL of NDs Mean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControl LimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesBaseline Data (Excluding Outliers and Post-baseline Results)Trend Anaysis on Baseline Data- MannKendall Trend Test (=1%)Control Chart AnalysisBaseline Sample Date Range Sample Counts Exploratory Data AnalysisC11-M01E (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/23/2007 7/15/2010 8 8 0% 0 - - 0.0000019 0.00000225 - - - - - - <0.000002 - - -All baseline samples are nondetectsC11-M01E (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/23/2007 7/15/2010 7 5 29% 1 0.00000146 0.00000214 0.00000097 0.000001 1.21E-06 4.17E-07 35 -9 0.119 No Trend <0.000001 - 3.29E-06 NoC11-M01E (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/23/2007 7/15/2010 8 6 25% 0 0.00000153 0.0000022 0.00000097 0.0000011 1.19E-06 4.22E-07 35 -9 0.160 No Trend <0.000001 - 3.30E-06 NoC11-M01E (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/23/2007 7/15/2010 8 8 0% 0 - - 0.00000091 0.0000025 - - - - - - 0.0000026 - - -All baseline samples are nondetectsC11-M01E (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/23/2007 7/15/2010 8 8 0% 0 - - 0.00000097 0.00000321 - - - - - - <0.000001 - - -All baseline samples are nondetectsC11-M01E (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/23/2007 7/15/2010 8 8 0% 0 - - 0.00000097 0.0000013 - - - - - - <0.000001 - - -All baseline samples are nondetectsC11-M01E (8) PFCs T PFOA MG/L 1/23/2007 7/15/2010 8 5 38% 1 0.00000308 0.000012 0.00000097 0.000001 3.02E-06 3.59E-06 119 -12 0.089 No Trend <0.000001 - 2.10E-05 NoC11-M01E (8) PFCs T PFOS MG/L 1/23/2007 7/15/2010 8 8 0% 0 - - 0.0000019 0.00000225 - - - - - - <0.000002 - - -All baseline samples are nondetectsC11-M02D (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/25/2007 7/15/2010 8 8 0% 0 - - 0.0000091 0.000023 - - - - - - <0.000012 - - -All baseline samples are nondetectsC11-M02D (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.00014 0.000234 - - 0.000183 0.000033 18 -1 0.500 No Trend 0.00016 - 0.000347 NoC11-M02D (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/25/2007 7/15/2010 8 2 75% 0 0.000016 0.000106 0.0000094 0.0000115 4.07E-05 3.55E-05 87 0 0.548 NoTrend 0.00012 - 0.000218 NoC11-M02D (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/25/2007 7/15/2010 8 8 0% 0 - - 0.0000026 0.0000103 - - - - - - <0.0000062 - - -All baseline samples are nondetectsC11-M02D (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.0001 0.000176 - - 0.000140 0.000024 17 -7 0.227 No Trend 0.00016 - 0.000261 NoC11-M02D (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/25/2007 7/15/2010 8 7 13% 0 0.000011 0.000011 0.0000091 0.0000232 7.49E-06 2.79E-06 37 -- - <0.000012 - - -<25% detection rate in baseline samplesC11-M02D (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.00046 0.0008 - - 0.000626 0.000110 18 -3 0.401 No Trend 0.00049 - 0.00118 NoC11-M02D (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.000584 0.00219 - - 0.00117 0.00056 48 2 0.452 No Trend 0.0014 - 0.00395 NoC11-M02D (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/25/2007 7/15/2010 8 8 0% 0 - - 0.0000026 0.000014 - - - - - - <0.0000062 - - -All baseline samples are nondetectsC11-M02D (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.0001 0.00014 - - 0.000122 0.000014 12 -3 0.401 No Trend 0.00013 - 0.000192 NoC11-M02D (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/25/2007 7/15/2010 8 6 25% 0 0.000009 0.0000112 0.0000046 0.0000134 6.30E-06 2.58E-06 41 -9 0.160 No Trend 0.000018 - 1.92E-05YesC11-M02D (8) PFCs T PFOA MG/L 7/11/2006 7/15/2010 9 0 100% 0 0.0019 0.00375 - - 0.00282 0.00063 23 -9 0.201 No Trend 0.0025 - 0.00599 NoC11-M02D (8) PFCs T PFOS MG/L 1/25/2007 7/15/2010 8 6 25% 0 0.0000056 0.0000325 0.0000091 0.0000232 8.96E-06 8.90E-06 99 -5 0.309 No Trend 0.000042 -5.34E-05YesC11-M03B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.0000094 0.00109 - - 0.000224 0.000379 169 -26 0.000Downward0.0000051 - - -Downward trend for all dataC11-M03B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.00014 0.000502 - - 0.000211 0.000124 59 -18 0.016 No Trend 0.00013 -0.000831 NoC11-M03B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.00007 0.00022 - - 0.000151 0.000051 34 6 0.274 No Trend 0.00013 - 0.000405 NoC11-M03B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/25/2007 7/15/2010 8 5 38% 0 0.0000022 0.0000034 0.0000025 0.00000538 2.63E-06 4.86E-07 19 0 0.548 No Trend 0.0000095 - 5.06E-06YesC11-M03B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 7/16/2007 7/15/2010 7 0 100% 1 0.00017 0.00037 - - 0.000261 0.000065 25 -12 0.059 No Trend 0.00019 -0.000588 NoC11-M03B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/25/2007 7/15/2010 8 8 0% 0 - - 0.0000039 0.00001215 - - - - - - <0.0000041 - - -All baseline samples are nondetectsC11-M03B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.00088 0.00251 - - 0.00140 0.00059 42 -17 0.029 No Trend 0.00039 - 0.00433 NoC11-M03B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.00009 0.0002105 - - 0.000141 0.000043 31 -9 0.160 No Trend 0.00009 -0.000356 NoC11-M03B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/25/2007 7/15/2010 8 8 0% 0 - - 0.0000019 0.00000534 - - - - - - <0.0000021 - - -All baseline samples are nondetectsC11-M03B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/25/2007 7/15/2010 8 0 100% 0 0.00025 0.0010135 - - 0.000450 0.000256 57 -26 0.000Downward0.00022 - - -Downward trend for all dataC11-M03B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/25/2007 7/15/2010 8 2 75% 0 0.0000048 0.000018 0.00000534 0.000007025 9.52E-06 4.79E-06 50 170.029 No Trend 0.000015 - 3.34E-05 NoC11-M03B (8) PFCs T PFOA MG/L 7/11/2006 7/15/2010 9 0 100% 0 0.00063 0.002035 - - 0.00121 0.00043 36 -18 0.038 No Trend 0.00035 - 0.00337 NoC11-M03B (8) PFCs T PFOS MG/L 1/25/2007 7/15/2010 8 7 13% 0 0.0000042 0.0000042 0.0000039 0.00001215 3.73E-06 1.55E-06 42 - - - 0.0000097 - - -<25% detection rate in baseline samplesD06-M01B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/19/2007 7/13/2010 8 0 100% 0 0.000035 0.000111 - - 7.40E-05 2.60E-05 35 -3 0.401 No Trend 0.000018 - 0.000204 NoD06-M01B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/19/2007 7/13/2010 8 0 100% 0 0.000049 0.00027 - - 0.000158 0.000074 47 16 0.031 No Trend 0.00023 - 0.000527 NoD06-M01B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/19/2007 7/13/2010 8 0 100% 0 0.000268 0.00039 - - 0.000333 0.000048 14 2 0.452 No Trend 0.00034 - 0.000573 NoD06-M01B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/19/2007 7/13/2010 8 3 63% 0 0.0000017 0.000021 0.0000017 0.00000393 6.05E-06 6.30E-06 104 22 0.002Upward0.000029 - - -Upward trend for all dataD06-M01B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/19/2007 7/13/2010 8 0 100% 0 0.00027 0.00066 - - 0.000396 0.000126 32 2 0.452 No Trend 0.00066 - 0.00103 NoD06-M01B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/19/2007 7/13/2010 8 7 13% 0 0.0000043 0.0000043 0.0000028 0.00000888 2.41E-06 1.25E-0652 - - - <0.0000032 - - -<25% detection rate in baseline samplesD06-M01B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/19/2007 7/13/2010 8 0 100% 0 0.00061 0.0013 - - 0.000876 0.000225 26 0 0.548 No Trend 0.0011 - 0.00200 NoD06-M01B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/19/2007 7/13/2010 8 0 100% 0 0.00014 0.000238 - - 0.000196 0.000040 20 -7 0.227 No Trend 0.00018 - 0.000393 NoD06-M01B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/19/2007 7/13/2010 8 4 50% 0 0.000002 0.00000359 0.0000017 0.0000036 2.21E-06 6.08E-07 28 -5 0.309 No Trend 0.0000032 - 5.25E-06 NoD06-M01B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/19/2007 7/13/2010 8 0 100% 0 0.00022 0.00076 - - 0.000426 0.000185 43 4 0.360 No Trend 0.00047 - 0.00135 NoD06-M01B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/19/2007 7/13/2010 8 0 100% 0 0.0000137 0.000055 - - 3.64E-05 1.30E-05 36 12 0.089 No Trend 0.000045 - 0.000101 NoD06-M01B (8) PFCs T PFOA MG/L 7/10/2006 7/13/2010 9 0 100% 0 0.0007 0.0015 - - 0.000972 0.000244 25 -12 0.130 No Trend 0.0009 - 0.00219 NoD06-M01B (8) PFCs T PFOS MG/L 1/19/2007 7/13/2010 8 1 88% 0 0.000007 0.000018 0.00000888 0.00000888 1.09E-05 3.72E-06 34 20 0.007Upward0.000019 - - -Upward trend for all dataD15-M01B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/25/2007 7/16/2010 7 6 14% 1 0.000015 0.000015 0.0000075 0.000015 6.86E-06 3.76E-06 55 - -- 0.000011 - - -<25% detection rate in baseline samplesD15-M01B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/25/2007 7/16/2010 8 0 100% 0 0.0002 0.000415 - - 0.000291 0.000076 26 7 0.227 No Trend 0.00011 - 0.000671 NoD15-M01B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/25/2007 7/16/2010 7 0 100% 1 0.000079 0.00018 - - 0.000143 0.000032 22 -1 0.500 No Trend 0.00024 - 0.000303 NoD15-M01B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/25/2007 7/16/2010 8 7 13% 0 0.0000054 0.0000054 0.0000048 0.00001 3.33E-06 1.20E-06 36 - - - 0.0000057 - - -<25% detection rate in baseline samplesD15-M01B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/25/2007 7/16/2010 8 0 100% 0 0.00039 0.00128 - - 0.000694 0.000290 42 -15 0.046 No Trend 0.0002 - 0.00215 NoD15-M01B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/25/2007 7/16/2010 8 8 0% 0 - - 0.0000033 0.000021 - - - - - - 0.000011 - - -All baseline samples are nondetectsD15-M01B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/25/2007 7/16/2010 8 0 100% 0 0.0014 0.0029 - - 0.00205 0.00045 22 -7 0.227 No Trend 0.00041 - 0.00428 NoD15-M01B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/25/2007 7/16/2010 7 0 100% 1 0.00011 0.000186 - - 0.000153 0.000031 20 2 0.437 No Trend 0.00015 - 0.000307 NoD15-M01B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/25/2007 7/16/2010 8 8 0% 0 - - 0.0000016 0.000026 - - - - - - 0.0000054 - - -All baseline samples are nondetectsD15-M01B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/25/2007 7/16/2010 8 0 100% 0 0.00044 0.00119 - - 0.000733 0.000238 32 -11 0.109 No Trend 0.00019 -0.00192 NoD15-M01B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/25/2007 7/16/2010 8 7 13% 0 0.000028 0.000028 0.0000048 0.00001 6.28E-06 8.83E-06 141 - - - 0.000033 - - -<25% detection rate in baseline samplesD15-M01B (8) PFCs T PFOA MG/L 7/13/2006 7/16/2010 9 0 100% 0 0.0013 0.00232 - - 0.00161 0.00033 21 8 0.238 No Trend 0.00048 - 0.00326 NoD15-M01B (8) PFCs T PFOS MG/L 1/25/2007 7/16/2010 8 8 0% 0 - - 0.0000031 0.000021 - - - - - - 0.00003 - - -All baseline samples are nondetectsF07-M01B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/19/2007 7/29/2010 8 1 88% 0 0.0000384 0.00013 0.000015 0.000015 6.27E-05 3.84E-05 61 8 0.199 No Trend 0.000073 - 0.000255 NoF07-M01B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/19/2007 7/29/2010 8 0 100% 0 0.00028 0.00077 - - 0.000464 0.000166 36 14 0.054 No Trend 0.0005 - 0.00129 NoF07-M01B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/19/2007 7/29/2010 7 0 100% 1 0.00011 0.00037 - - 0.000279 0.000086 31 5 0.281 No Trend 0.0006 - 0.000710 NoF07-M01B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/19/2007 7/29/2010 8 7 13% 0 0.00014 0.00014 0.0000065 0.00002 2.16E-05 4.79E-05 221 - - - 0.000013 - - -<25% detection rate in baseline samplesF07-M01B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/19/2007 7/29/2010 8 0 100% 0 0.00073 0.0013 - - 0.00100 0.00018 18 0 0.548 No Trend 0.0011 - 0.00190 NoF07-M01B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/19/2007 7/29/2010 8 8 0% 0 - - 0.000012 0.000039 - - - - - - <0.000013 - - -All baseline samples are nondetectsF07-M01B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/19/2007 7/29/2010 7 0 100% 1 0.0032 0.0039 - - 0.00360 0.00025 7 6 0.222 No Trend 0.0028 - 0.00486 NoF07-M01B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/19/2007 7/29/2010 8 0 100% 0 0.00035 0.0006 - - 0.000493 0.000094 19 -2 0.452 No Trend 0.00049 - 0.000962 NoF07-M01B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/19/2007 7/29/2010 8 7 13% 0 0.00011 0.00011 0.0000061 0.00002 1.84E-05 3.71E-05 202 - - - <0.0000066 - - -<25% detection rate in baseline samplesF07-M01B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/19/2007 7/29/2010 8 0 100% 0 0.00078 0.0017 - - 0.00114 0.00028 25 1 0.500 No Trend 0.00069 - 0.00254 No8/23/2013Page 2 of 7ChambersWorks_ResultTables-forAppendices.xlsxSTATISTICAL EVALUATION RESULTS FOR THE PFOA MONITORING PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMin Detected Max DetectedMin MDL ofNDsMax MDL of NDs Mean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControl LimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesBaseline Data (Excluding Outliers and Post-baseline Results)Trend Anaysis on Baseline Data- MannKendall Trend Test (=1%)Control Chart AnalysisBaseline Sample Date Range Sample Counts Exploratory Data AnalysisF07-M01B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/19/2007 7/29/2010 8 2 75% 0 0.0000071 0.000082 0.0000125 0.00002 2.21E-05 2.49E-05 112 -5 0.309 No Trend 0.000057 - 0.000146 NoF07-M01B (8) PFCs T PFOA MG/L 8/9/2006 7/29/2010 9 0 100% 0 0.0021 0.004 - - 0.00298 0.00054 18 -2 0.460 No Trend 0.0025 - 0.00568 NoF07-M01B (8) PFCs T PFOS MG/L 1/19/2007 7/29/2010 8 8 0% 0 - - 0.000012 0.000039 - - - - - - <0.000013 - - -All baseline samples are nondetectsF08-M01A (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/10/2008 7/28/2010 6 3 50% 1 0.000023 0.000072 0.000014 0.00016 3.40E-05 2.24E-05 66 0 0.577 No Trend 0.00006 - 0.000146 NoF08-M01A (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/10/2008 7/28/2010 6 0 100% 1 0.0015 0.047 - - 0.0145 0.0184 127 -9 0.068 No Trend 0.41 - 0.106YesF08-M01A (8) PFCs T PERFLUORODECANOIC ACID MG/L 7/26/2007 7/28/2010 7 1 86% 0 0.00086 0.0047 0.000048 0.000048 0.00189 0.00157 83 -3 0.386 No Trend0.0022 - 0.00974 NoF08-M01A (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/10/2008 7/28/2010 6 3 50% 1 0.000013 0.00002 0.0000089 0.000078 1.52E-05 4.53E-06 30 0 0.577 NoTrend 0.000078 - 3.79E-05YesF08-M01A (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 7/26/2007 7/28/2010 7 0 100% 0 0.00026 0.02325 - - 0.00536 0.00899 168 -15 0.015 No Trend 0.00035 - 0.0503 NoF08-M01A (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 7/26/2007 7/28/2010 7 7 0% 0 - - 0.000014 0.00263 - - - - - - <0.000014 - - -All baseline samples are nondetectsF08-M01A (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/10/2008 7/28/2010 6 0 100% 1 0.0024 0.047 - - 0.0132 0.0171 130 -5 0.235 No Trend 0.019 - 0.0986 NoF08-M01A (8) PFCs T PERFLUORONONANOIC ACID MG/L 7/26/2007 7/28/2010 7 0 100% 0 0.00024 0.00398 - - 0.00138 0.00157 114 -5 0.281 No Trend 0.00085 - 0.00920 NoF08-M01A (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 7/26/2007 7/28/2010 7 7 0% 0 - - 0.0000069 0.00132 - - - - - - <0.0000071 - - -All baseline samples are nondetectsF08-M01A (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 7/26/2007 7/28/2010 7 0 100% 0 0.00041 0.0358 - - 0.00806 0.01347 167 -11 0.068 No Trend 0.0024 - 0.0754 NoF08-M01A (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/10/2008 7/28/2010 6 1 83% 1 0.000023 0.00017 0.000048 0.000048 6.25E-05 5.07E-05 81 -2 0.423 NoTrend 0.00013 - 0.000316 NoF08-M01A (8) PFCs T PFOA MG/L 7/26/2007 7/28/2010 7 0 100% 0 0.003 0.08265 - - 0.0208 0.0293 141 -11 0.068 No Trend 0.0083 - 0.167 NoF08-M01A (8) PFCs T PFOS MG/L 7/26/2007 7/28/2010 7 7 0% 0 - - 0.000014 0.00263 - - - - - - <0.000014 - - -All baseline samples are nondetectsF08-M01B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/19/2007 7/29/2010 8 8 0% 0 - - 0.000014 0.0001 - - - - - - <0.000012 - - -All baseline samples are nondetectsF08-M01B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/19/2007 7/29/2010 8 0 100% 0 0.00043 0.0048 - - 0.00241 0.00123 51 2 0.452 No Trend 0.0025 - 0.00856YesF08-M01B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/19/2007 7/29/2010 8 2 75% 0 0.00012 0.0024 0.000032 0.000035 0.000719 0.000877 122 5 0.309 No Trend 0.0028 - 0.00510 NoF08-M01B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/19/2007 7/29/2010 8 6 25% 0 0.0000093 0.000088 0.000019 0.00005 1.91E-05 2.60E-05 136 3 0.401 No Trend 0.00019 - 0.000149YesF08-M01B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/19/2007 7/29/2010 8 0 100% 0 0.0005 0.00308 - - 0.00220 0.00078 36 -6 0.274 No Trend 0.0035 - 0.00612 NoF08-M01B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/19/2007 7/29/2010 8 8 0% 0 - - 0.000014 0.0001 - - - - - - <0.000012 - - -All baseline samples are nondetectsF08-M01B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/19/2007 7/29/2010 8 0 100% 0 0.0041 0.02 - - 0.0131 0.0046 35 -10 0.138 No Trend 0.011 - 0.0358 NoF08-M01B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/19/2007 7/29/2010 8 0 100% 0 0.00021 0.0011 - - 0.000588 0.000309 53 6 0.274 No Trend 0.0016 - 0.00213 NoF08-M01B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/19/2007 7/29/2010 8 8 0% 0 - - 0.0000068 0.00005 - - - - - - <0.0000058 - - -All baseline samples are nondetectsF08-M01B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/19/2007 7/29/2010 8 0 100% 0 0.00047 0.0039 - - 0.00293 0.00112 38 -3 0.401 No Trend 0.0031 - 0.00854 NoF08-M01B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/19/2007 7/29/2010 7 6 14% 1 0.000088 0.000088 0.000019 0.00005 2.83E-05 2.68E-05 95 - - - 0.00075- - -<25% detection rate in baseline samplesF08-M01B (8) PFCs T PFOA MG/L 1/19/2007 7/29/2010 8 0 100% 1 0.0036 0.0094 - - 0.00686 0.00197 29 -3 0.401 No Trend 0.0062 - 0.0167 NoF08-M01B (8) PFCs T PFOS MG/L 1/19/2007 7/29/2010 8 8 0% 0 - - 0.000014 0.0001 - - - - - - <0.000012 - - -All baseline samples are nondetectsG04-M01B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/23/2007 7/27/2010 8 8 0% 0 - - 0.0000039 0.00002 - - - - - - <0.0000033 - - -All baseline samples are nondetectsG04-M01B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/23/2007 7/27/2010 8 0 100% 0 0.00024 0.00048 - - 0.000411 0.000084 20 -2 0.452 No Trend 0.00049 - 0.000831 NoG04-M01B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/23/2007 7/27/2010 8 0 100% 0 0.000022 0.000047 - - 3.53E-05 8.75E-06 25 10 0.138 No Trend 0.000042- 7.90E-05 NoG04-M01B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/23/2007 7/27/2010 8 8 0% 0 - - 0.000002 0.0000098 - - - - - - <0.0000017 - - -All baseline samples are nondetectsG04-M01B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/23/2007 7/27/2010 8 0 100% 0 0.00035 0.000636 - - 0.000501 0.000091 18 -6 0.274 No Trend 0.00056 -0.000955 NoG04-M01B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/23/2007 7/27/2010 8 8 0% 0 - - 0.0000039 0.00002 - - - - - - <0.0000033 - - -All baseline samples are nondetectsG04-M01B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/23/2007 7/27/2010 8 0 100% 0 0.0013 0.00234 - - 0.00186 0.00035 19 -5 0.309 No Trend 0.0014 - 0.00360 NoG04-M01B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/23/2007 7/27/2010 8 0 100% 0 0.000088 0.00014 - - 0.000112 0.000019 17 2 0.452 No Trend 0.00015 - 0.000205 NoG04-M01B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/23/2007 7/27/2010 8 8 0% 0 - - 0.000002 0.0000098 - - - - - - <0.0000017 - - -All baseline samples are nondetectsG04-M01B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/23/2007 7/27/2010 8 0 100% 0 0.00065 0.001 - - 0.000821 0.000116 14 -8 0.199 No Trend 0.00067 - 0.00140 NoG04-M01B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/23/2007 7/27/2010 8 8 0% 0 - - 0.000002 0.0000098 - - - - - - <0.0000017 - - -All baseline samples are nondetectsG04-M01B (8) PFCs T PFOA MG/L 8/7/2006 7/27/2010 9 0 100% 0 0.00094 0.0016 - - 0.00128 0.00023 18 5 0.336 No Trend 0.0012 - 0.00243 NoG04-M01B (8) PFCs T PFOS MG/L 1/23/2007 7/27/2010 8 8 0% 0 - - 0.0000039 0.00002 - - - - - - <0.0000033 - - -All baseline samples are nondetectsG04-M01E (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/23/2007 7/27/2010 8 7 13% 0 0.0000031 0.0000031 0.0000019 0.000008 1.65E-06 1.20E-06 72- - - <0.0000018 - - -<25% detection rate in baseline samplesG04-M01E (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/23/2007 7/27/2010 8 1 88% 0 0.000001 0.0000107 0.00000097 0.00000097 5.53E-06 4.01E-06 72 -18 0.016 No Trend 0.0000028 - 2.56E-05 NoG04-M01E (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/23/2007 7/27/2010 8 3 63% 0 0.000019 0.000033 0.00000097 0.000001 1.80E-05 1.38E-05 76 -13 0.072No Trend <0.00000088 - 8.68E-05 NoG04-M01E (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/23/2007 7/27/2010 8 4 50% 0 0.0000017 0.0000064 0.00000097 0.000001 2.82E-06 2.25E-06 80 -12 0.089 No Trend <0.00000088 - 1.41E-05 NoG04-M01E (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/23/2007 7/27/2010 8 0 100% 0 0.0000013 0.0000126 - - 6.80E-06 4.84E-06 71 -16 0.031 No Trend 0.0000022 - 3.10E-05 NoG04-M01E (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/23/2007 7/27/2010 8 8 0% 0 - - 0.0000019 0.00000232 - - - - - - <0.0000018 - - -All baseline samples are nondetectsG04-M01E (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/23/2007 7/27/2010 8 0 100% 0 0.0000024 0.000133 - - 6.97E-05 5.65E-05 81 -18 0.016 No Trend 0.0000053 - 0.000352 NoG04-M01E (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/23/2007 7/27/2010 8 3 63% 0 0.00000481 0.0000093 0.00000097 0.000001 5.00E-06 3.34E-06 67 -19 0.019 No Trend <0.00000088 - 2.17E-05 NoG04-M01E (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/23/2007 7/27/2010 8 8 0% 0 - - 9.35E-07 0.0000026 - - - - - - <0.00000088 - - -All baseline samples are nondetectsG04-M01E (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/23/2007 7/27/2010 8 1 88% 0 0.0000016 0.000024 0.00000097 0.00000097 1.16E-05 8.73E-06 75 -14 0.054 No Trend 0.0000024 - 5.53E-05 NoG04-M01E (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/23/2007 7/27/2010 8 4 50% 0 0.00000178 0.000004 0.00000097 0.000001 1.78E-06 1.01E-06 56 -14 0.054 No Trend <0.00000088 - 6.82E-06 NoG04-M01E (8) PFCs T PFOA MG/L 8/7/2006 7/27/2010 9 0 100% 0 0.0000029 0.00014 - - 6.55E-05 5.13E-05 78 -26 0.003Downward0.0000051 - - -Downward trend for all dataG04-M01E (8) PFCs T PFOS MG/L 1/23/2007 7/27/2010 8 8 0% 0 - - 0.0000019 0.00000232 - - - - - - <0.0000018 - - -All baseline samples are nondetectsG05-M02B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/19/2007 7/14/2010 8 8 0% 0 - - 0.000035 0.0001 - - - - - - 0.00029 - - -All baseline samples are nondetectsG05-M02B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/19/2007 7/14/2010 8 0 100% 0 0.0011 0.00184 - - 0.00142 0.00021 15 -10 0.138 No Trend 0.0014 - 0.00250 NoG05-M02B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/19/2007 7/14/2010 7 5 29% 1 0.000042 0.000063 0.000017 0.00005 2.79E-05 1.71E-05 61 7 0.191 No Trend 0.0013 - 0.000113YesG05-M02B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/19/2007 7/14/2010 8 8 0% 0 - - 0.000017 0.00005 - - - - - - <0.000048 - - -All baseline samples are nondetectsG05-M02B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/19/2007 7/14/2010 8 0 100% 0 0.0016 0.00268 - - 0.00200 0.00034 17 -10 0.138 No Trend 0.0024 - 0.00370 NoG05-M02B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/19/2007 7/14/2010 8 8 0% 0 - - 0.000035 0.0001 - - - - - - <0.000096 - - -All baseline samples are nondetectsG05-M02B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/19/2007 7/14/2010 7 0 100% 1 0.0077 0.00996 - - 0.00890 0.00083 9 -3 0.386 No Trend 0.009 - 0.0131 NoG05-M02B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/19/2007 7/14/2010 8 0 100% 0 0.000072 0.000696 - - 0.000225 0.000208 93 0 0.548 No Trend 0.00087 - 0.00127 NoG05-M02B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/19/2007 7/14/2010 8 8 0% 0 - - 0.000017 0.00009 - - - - - - <0.000048 - - -All baseline samples are nondetectsG05-M02B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/19/2007 7/14/2010 8 0 100% 0 0.0024 0.0038 - - 0.00295 0.00044 15 -2 0.452 No Trend 0.0026 - 0.00517 NoG05-M02B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/19/2007 7/14/2010 8 8 0% 0 - - 0.000017 0.00005 - - - - - - 0.000079 - - -All baseline samples are nondetectsG05-M02B (8) PFCs T PFOA MG/L 7/10/2006 7/14/2010 9 0 100% 0 0.0018 0.0066 - - 0.00374 0.00158 42 -9 0.201 No Trend 0.0068 - 0.0116 NoG05-M02B (8) PFCs T PFOS MG/L 1/19/2007 7/14/2010 8 8 0% 0 - - 0.000035 0.0001 - - - - - - <0.000096 - - -All baseline samples are nondetectsG09-M01A (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 7/26/2007 7/28/2010 7 7 0% 0 - - 0.00063 0.01 - - - - - - 0.001 - - -All baseline samples are nondetectsG09-M01A (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 7/26/2007 7/28/2010 7 0 100% 0 0.035 0.073 - - 0.0509 0.0132 26 1 0.500 No Trend 0.081 - 0.117 No8/23/2013Page 3 of 7ChambersWorks_ResultTables-forAppendices.xlsxSTATISTICAL EVALUATION RESULTS FOR THE PFOA MONITORING PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMin Detected Max DetectedMin MDL ofNDsMax MDL of NDs Mean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControl LimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesBaseline Data (Excluding Outliers and Post-baseline Results)Trend Anaysis on Baseline Data- MannKendall Trend Test (=1%)Control Chart AnalysisBaseline Sample Date Range Sample Counts Exploratory Data AnalysisG09-M01A (8) PFCs T PERFLUORODECANOIC ACID MG/L 7/26/2007 7/28/2010 6 3 50% 1 0.00975 0.016 0.00044 0.00053 0.0067 0.0065 97 -2 0.423 No Trend 0.12 -0.0391YesG09-M01A (8) PFCs T PERFLUORODODECANOIC ACID MG/L 7/26/2007 7/28/2010 7 7 0% 0 - - 0.00031 0.005 - - - - - - 0.00051 - - -All baseline samples are nondetectsG09-M01A (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 7/26/2007 7/28/2010 7 0 100% 0 0.038 0.15 - - 0.0929 0.0379 41 -3 0.386 No Trend 0.11 - 0.282 NoG09-M01A (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 7/26/2007 7/28/2010 7 7 0% 0 - - 0.00063 0.01 - - - - - - 0.001 - - -All baseline samples are nondetectsG09-M01A (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 7/26/2007 7/28/2010 7 0 100% 0 0.18 0.3 - - 0.228 0.042 19 10 0.095 No Trend 0.34 - 0.439YesG09-M01A (8) PFCs T PERFLUORONONANOIC ACID MG/L 7/26/2007 7/28/2010 7 2 71% 0 0.017 0.15 0.00053 0.00096 0.0633 0.0605 96 -2 0.437 No Trend 0.1 - 0.366 NoG09-M01A (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 7/26/2007 7/28/2010 7 7 0% 0 - - 0.00031 0.005 - - - - - - 0.00051 - - -All baseline samples are nondetectsG09-M01A (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 7/26/2007 7/28/2010 7 0 100% 0 0.053 0.11 - - 0.0703 0.0218 31 4 0.321 No Trend 0.11 - 0.179 NoG09-M01A (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 7/26/2007 7/28/2010 7 6 14% 0 0.00067 0.00067 0.00031 0.005 0.000617 0.000847 137 - - - 0.00063 - - -<25% detection rate in baseline samplesG09-M01A (8) PFCs T PFOA MG/L 7/26/2007 7/28/2010 7 0 100% 0 0.0084 0.42 - - 0.225 0.161 72 3 0.386 No Trend 0.36 - 1.03 NoG09-M01A (8) PFCs T PFOS MG/L 7/26/2007 7/28/2010 7 6 14% 0 0.0016 0.0016 0.00063 0.01 0.00127 0.00170 134 - - - 0.001 - - -<25% detection rate in baseline samplesJ05-M01C (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/19/2007 7/13/2010 8 8 0% 0 - - 0.0000019 0.00000385 - - - - - - <0.000002 - - -All baseline samples are nondetectsJ05-M01C (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/19/2007 7/13/2010 8 0 100% 0 0.000028 0.000063 - - 4.30E-05 1.51E-05 35 -5 0.309 No Trend 0.000029- 0.000118 NoJ05-M01C (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/19/2007 7/13/2010 8 2 75% 0 0.00000145 0.00001885 0.00000097 0.000001 6.14E-06 6.05E-06 98 -3 0.401 No Trend <0.00000099 - 3.64E-05YesJ05-M01C (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/19/2007 7/13/2010 8 8 0% 0 - - 0.00000097 0.00000101 - - - - - - <0.00000099 - - -All baseline samples are nondetectsJ05-M01C (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/19/2007 7/13/2010 8 0 100% 0 0.000019 0.000068 - - 3.99E-05 1.83E-05 46 -4 0.360 No Trend 0.000024 - 0.000132 NoJ05-M01C (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/19/2007 7/13/2010 8 8 0% 0 - - 0.0000019 0.00000228 - - - - - - <0.000002 - - -All baseline samples are nondetectsJ05-M01C (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/19/2007 7/13/2010 8 0 100% 0 0.000056 0.00019 - - 0.000118 0.000051 43 1 0.500 No Trend 0.000061 - 0.000375 NoJ05-M01C (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/19/2007 7/13/2010 8 0 100% 0 0.0000012 0.000021 - - 7.22E-06 7.59E-06 105 0 0.548 No Trend <0.00000099 - 4.52E-05 NoJ05-M01C (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/19/2007 7/13/2010 8 7 13% 0 0.0000012 0.0000012 9.19E-07 0.0000025 6.75E-07 3.40E-07 50 - -- <0.00000099 - - -<25% detection rate in baseline samplesJ05-M01C (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/19/2007 7/13/2010 8 0 100% 0 0.00005 0.00013 - - 9.21E-05 3.33E-05 36 -4 0.360 No Trend 0.000042 -0.000258 NoJ05-M01C (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/19/2007 7/13/2010 8 6 25% 0 0.00000155 0.00000217 0.00000097 0.00000132 1.19E-06 4.15E-07 35-9 0.160 No Trend <0.00000099 - 3.27E-06 NoJ05-M01C (8) PFCs T PFOA MG/L 1/19/2007 7/13/2010 8 0 100% 1 0.000021 0.00014 - - 7.35E-05 5.03E-05 68 -1 0.500 No Trend 0.000026 - 0.000325 NoJ05-M01C (8) PFCs T PFOS MG/L 1/19/2007 7/13/2010 8 8 0% 0 - - 0.0000019 0.00000228 - - - - - - <0.000002 - - -All baseline samples are nondetectsJ10-M02B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/25/2011 1/18/2013 4 2 50% 0 0.0000970 0.0001400 0.0000020 0.0000570 0.0001185 0.0000304 26 - - - 0.00014 - - -Baseline sample collection in progress.J10-M02B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/25/2011 1/18/2013 4 0 100% 0 0.0001300 0.0002200 - - 0.0001600 0.0000408 26 - - - 0.00014 - - -Baseline sample collection in progress.J10-M02B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/25/2011 1/18/2013 4 0 100% 0 0.0000360 0.0007600 - - 0.0004315 0.0002983 69 - - - 0.00076 - - -Baseline sample collection in progress.J10-M02B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/25/2011 1/18/2013 4 3 75% 0 0.0000140 0.0000140 0.0000240 0.0000280 0.0000140 - - - - - <0.000024- - -Baseline sample collection in progress.J10-M02B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/25/2011 1/18/2013 4 0 100% 0 0.0003200 0.0005800 - - 0.0004425 0.0001066 24 - - - 0.00044 - - -Baseline sample collection in progress.J10-M02B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/25/2011 1/18/2013 4 3 0% 0 - - 0.0000020 0.0000570 - - - - - - <0.000049 - - -Baseline sample collection in progress.J10-M02B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/25/2011 1/18/2013 4 0 100% 0 0.0007100 0.0010000 - - 0.0008800 0.0001273 15 - - - 0.00095 - - -Baseline sample collection in progress.J10-M02B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/25/2011 1/18/2013 4 0 100% 0 0.0000730 0.0003300 - - 0.0002208 0.0001121 51 - - - 0.00028 - - -Baseline sample collection in progress.J10-M02B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/25/2011 1/18/2013 4 4 0% 0 - - 0.0000010 0.0000280 - - - - - - <0.000024 - - -Baseline sample collection in progress.J10-M02B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/25/2011 1/18/2013 4 0 100% 0 0.0002500 0.0003500 - - 0.0003125 0.0000450 14 - - - 0.00034 - - -Baseline sample collection in progress.J10-M02B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/25/2011 1/18/2013 4 1 25% 0 0.0000550 0.0001100 0.0000280 0.0000280 0.0000757 0.0000299 40 - -- 0.00011 - - -Baseline sample collection in progress.J10-M02B (8) PFCs T PFOA MG/L 1/25/2011 1/18/2013 4 0 100% 0 0.0036000 0.0078000 - - 0.0060000 0.0018000 30 - - - 0.0068 - - -Baseline sample collection in progress.J10-M02B (8) PFCs T PFOS MG/L 1/25/2011 1/18/2013 4 3 75% 0 0.0000044 0.0000044 0.0000490 0.0000570 0.0000044 - - - - - <0.000049 - - -Baseline sample collection in progress.K12-M01A (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 7/26/2007 7/28/2010 7 6 14% 0 0.000027 0.000027 0.0002 0.00071 0.000171 0.000114 67 - - - 0.000012 - - -<25% detection rate in baseline samplesK12-M01A (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 7/26/2007 7/28/2010 7 1 86% 0 0.00036 0.0036 0.00017 0.00017 0.00108 0.00119 110 -7 0.191 No Trend 0.00019 - 0.00703 NoK12-M01A (8) PFCs T PERFLUORODECANOIC ACID MG/L 7/26/2007 7/28/2010 7 4 43% 0 0.00028 0.00084 0.00015 0.00046 0.000311 0.000228 73 11 0.068 No Trend 0.0012 - 0.00145YesK12-M01A (8) PFCs T PERFLUORODODECANOIC ACID MG/L 7/26/2007 7/28/2010 7 7 0% 0 - - 0.0000068 0.00034 - - - - - - 0.000036 - - -All baseline samples are nondetectsK12-M01A (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 7/26/2007 7/28/2010 7 0 100% 0 0.0004 0.0087 - - 0.00376 0.00297 79 -3 0.386 No Trend 0.00071 - 0.0186 NoK12-M01A (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 7/26/2007 7/28/2010 7 7 0% 0 - - 0.000014 0.00068 - - - - - - 0.000012 - - -All baseline samples are nondetectsK12-M01A (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 7/26/2007 7/28/2010 7 0 100% 0 0.0008 0.016 - - 0.00547 0.00552 101 -5 0.281 No Trend 0.00091 - 0.0331NoK12-M01A (8) PFCs T PERFLUORONONANOIC ACID MG/L 7/26/2007 7/28/2010 7 3 57% 0 0.00052 0.0011 0.00017 0.00035 0.000511 0.000344 67 4 0.321 No Trend 0.00052 - 0.00223 NoK12-M01A (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 7/26/2007 7/28/2010 7 7 0% 0 - - 0.0000068 0.00043 - - - - - - <0.0000061 - - -All baseline samples are nondetectsK12-M01A (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 7/26/2007 7/28/2010 7 0 100% 0 0.00053 0.0092 - - 0.00295 0.00307 104 -3 0.386 No Trend 0.00044 - 0.0183 NoK12-M01A (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 7/26/2007 7/28/2010 7 6 14% 0 0.000021 0.000021 0.0001 0.00066 0.000109 0.000105 96 - - - 0.000076---<25% detection rate in baseline samplesK12-M01A (8) PFCs T PFOA MG/L 7/26/2007 7/28/2010 7 0 100% 0 0.0029 0.22 - - 0.0825 0.0697 85 -13 0.035 No Trend 0.06 - 0.431YesK12-M01A (8) PFCs T PFOS MG/L 7/26/2007 7/28/2010 7 7 0% 0 - - 0.000014 0.00068 - - - - - - 0.000012 - - -All baseline samples are nondetectsK13-M02B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/16/2007 7/7/2010 8 8 0% 0 - - 0.00018 0.000839 - - - - - - <0.0002 - - -All baseline samples are nondetectsK13-M02B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/16/2007 7/7/2010 8 0 100% 0 0.011 0.042 - - 0.0282 0.0106 37 -4 0.360 No Trend 0.00745 - 0.0811 NoK13-M02B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/16/2007 7/7/2010 8 7 13% 0 0.000147 0.000147 0.000092 0.000421 0.000128 0.000056 44 - - - 0.00047 -- -<25% detection rate in baseline samplesK13-M02B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/16/2007 7/7/2010 8 8 0% 0 - - 0.000092 0.000376 - - - - - - <0.0001 - - -All baseline samples are nondetectsK13-M02B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/16/2007 7/7/2010 8 0 100% 0 0.0063 0.0136 - - 0.00945 0.00282 30 -12 0.089 No Trend 0.0058 - 0.0236NoK13-M02B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/16/2007 7/7/2010 8 8 0% 0 - - 0.00018 0.000848 - - - - - - <0.0002 - - -All baseline samples are nondetectsK13-M02B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/16/2007 7/7/2010 8 0 100% 0 0.063 0.25 - - 0.166 0.070 42 -6 0.274 No Trend 0.0425 - 0.517 NoK13-M02B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/16/2007 7/7/2010 8 1 88% 0 0.00022 0.00169 0.00025 0.00025 0.000920 0.000508 55 -10 0.138 No Trend 0.0014 - 0.00346 NoK13-M02B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/16/2007 7/7/2010 8 8 0% 0 - - 0.000092 0.00065 - - - - - - <0.0001 - - -All baseline samples are nondetectsK13-M02B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/16/2007 7/7/2010 8 0 100% 0 0.012 0.0267 - - 0.0195 0.0055 28 -12 0.089 No Trend 0.00865 - 0.0468 NoK13-M02B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/16/2007 7/7/2010 8 8 0% 0 - - 0.000092 0.000491 - - - - - - <0.0001 - - -All baseline samples are nondetectsK13-M02B (8) PFCs T PFOA MG/L 8/8/2006 7/7/2010 9 0 100% 0 0.014 0.0464 - - 0.0292 0.0119 41 -18 0.038 No Trend 0.0165 - 0.0888 NoK13-M02B (8) PFCs T PFOS MG/L 1/16/2007 7/7/2010 8 8 0% 0 - - 0.00018 0.000848 - - - - - - <0.0002 - - -All baseline samples are nondetectsL09-M01B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/22/2007 8/5/2010 8 6 25% 0 0.0000263 0.00011 0.0000058 0.000044 2.18E-05 3.41E-05 156 -50.309 No Trend 0.00058 - 0.000192YesL09-M01B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.0000072 0.00021 - - 9.34E-05 8.40E-05 90 18 0.016 No Trend 0.00035 - 0.000513YesL09-M01B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.000085 0.00035 - - 0.000169 0.000093 55 -8 0.199 No Trend 0.00035 - 0.000632 NoL09-M01B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/22/2007 8/5/2010 8 7 13% 0 0.0000136 0.0000136 0.0000029 0.000022 6.67E-06 4.06E-06 61 - - - 0.0000099 - - -<25% detection rate in baseline samplesL09-M01B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.00011 0.0011 - - 0.000586 0.000406 69 21 0.012 No Trend 0.001 - 0.00262 NoL09-M01B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/22/2007 8/5/2010 8 7 13% 0 0.0000089 0.0000089 0.0000023 0.000044 7.79E-06 6.86E-06 88 -- - 0.00002 - - -<25% detection rate in baseline samplesL09-M01B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.00012 0.0014 - - 0.000682 0.000524 77 19 0.019 No Trend 0.002 - 0.00330Yes8/23/2013Page 4 of 7ChambersWorks_ResultTables-forAppendices.xlsxSTATISTICAL EVALUATION RESULTS FOR THE PFOA MONITORING PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMin Detected Max DetectedMin MDL ofNDsMax MDL of NDs Mean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControl LimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesBaseline Data (Excluding Outliers and Post-baseline Results)Trend Anaysis on Baseline Data- MannKendall Trend Test (=1%)Control Chart AnalysisBaseline Sample Date Range Sample Counts Exploratory Data AnalysisL09-M01B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.0000472 0.00037 - - 0.000204 0.000105 51 20 0.007Upward0.00041 - - -Upward trend for all dataL09-M01B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/22/2007 8/5/2010 8 8 0% 0 - - 9.28E-07 0.000022 - - - - - - 0.0000099 - - -All baseline samples are nondetectsL09-M01B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.0000529 0.001 - - 0.000368 0.000329 89 17 0.029 No Trend 0.00075 - 0.00201 NoL09-M01B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/22/2007 8/5/2010 8 3 63% 0 0.00000831 0.000109 0.00001 0.000022 3.32E-05 3.32E-05 100 -16 0.031 No Trend 0.000035 - 0.000199 NoL09-M01B (8) PFCs T PFOA MG/L 8/10/2006 8/5/2010 9 0 100% 0 0.00018 0.0025 - - 0.00121 0.00071 59 16 0.060 No Trend 0.0026 - 0.00478YesL09-M01B (8) PFCs T PFOS MG/L 1/22/2007 8/5/2010 8 7 13% 0 0.00000237 0.00000237 0.0000034 0.000044 7.43E-06 6.76E-06 91 - - - 0.00002 - - -<25% detection rate in baseline samplesL09-M01C (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/22/2007 8/5/2010 8 4 50% 0 0.0000069 0.0000451 0.0000048 0.00000745 1.61E-05 1.48E-05 92 -6 0.274 No Trend 0.00017 - 9.02E-05YesL09-M01C (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.000096 0.000442 - - 0.000244 0.000131 54 0 0.548 No Trend 0.00038 - 0.000900 NoL09-M01C (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.000035 0.000124 - - 8.08E-05 3.10E-05 38 -16 0.031 No Trend 0.00019 -0.000236 NoL09-M01C (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/22/2007 8/5/2010 8 7 13% 0 0.0000047 0.0000047 0.0000024 0.0000114 2.88E-06 1.76E-06 61 - - - <0.0000027 - - -<25% detection rate in baseline samplesL09-M01C (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.00058 0.001 - - 0.000789 0.000151 19 11 0.109 No Trend 0.0013 - 0.00154 NoL09-M01C (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/22/2007 8/5/2010 8 4 50% 0 0.0000071 0.0000174 0.0000048 0.0000228 7.90E-06 4.15E-06 52-14 0.054 No Trend 0.0000086 - 2.86E-05 NoL09-M01C (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.00051 0.00124 - - 0.000942 0.000254 27 4 0.360 No Trend 0.0021 - 0.00221 NoL09-M01C (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.000095 0.00033 - - 0.000197 0.000080 41 -16 0.031 No Trend 0.00048 - 0.000599 NoL09-M01C (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/22/2007 8/5/2010 8 8 0% 0 - - 0.000001 0.0000114 - - - - - - <0.0000027 - - -All baseline samples are nondetectsL09-M01C (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.00035 0.0014 - - 0.000881 0.000389 44 4 0.360 No Trend 0.0016 - 0.00282 NoL09-M01C (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/22/2007 8/5/2010 8 3 63% 0 0.0000015 0.00000868 0.000002 0.0000114 3.78E-06 2.63E-06 70 -4 0.360 No Trend 0.0000089 - 1.69E-05YesL09-M01C (8) PFCs T PFOA MG/L 8/10/2006 8/5/2010 9 0 100% 0 0.00089 0.0022 - - 0.00141 0.00040 29 -17 0.054 No Trend 0.0031 - 0.00343 NoL09-M01C (8) PFCs T PFOS MG/L 1/22/2007 8/5/2010 8 3 63% 0 0.0000052 0.000014 0.0000048 0.0000228 8.83E-06 3.51E-06 40 -6 0.274 No Trend 0.000024 - 2.64E-05YesL09-M01D (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/22/2007 8/5/2010 8 7 13% 0 0.000195 0.000195 0.00001 0.000076 4.12E-05 6.29E-05 153 - - - 0.00023 - - -<25% detection rate in baseline samplesL09-M01D (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.000046 0.0018 - - 0.000977 0.000590 60 12 0.089 No Trend 0.0022 - 0.00393 NoL09-M01D (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/22/2007 8/5/2010 8 2 75% 0 0.000018 0.000072 0.000017 0.000017 3.72E-05 2.03E-05 55 -3 0.401 No Trend 0.000071 - 0.000139 NoL09-M01D (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/22/2007 8/5/2010 8 8 0% 0 - - 0.000001 0.0000276 - - - - - - <0.000016 - - -All baseline samples are nondetectsL09-M01D (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.0006 0.0025 - - 0.00140 0.00060 43 16 0.031 No Trend 0.0051 - 0.00439YesL09-M01D (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/22/2007 8/5/2010 8 8 0% 0 - - 0.0000028 0.0000947 - - - - - - <0.000033 - - -All baseline samples are nondetectsL09-M01D (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.00042 0.0042 - - 0.00260 0.00120 46 12 0.089 No Trend 0.0069 - 0.00861YesL09-M01D (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.00017 0.000326 - - 0.000247 0.000052 21 -6 0.274 No Trend 0.00047 - 0.000508YesL09-M01D (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/22/2007 8/5/2010 8 8 0% 0 - - 0.000001 0.000048 - - - - - - <0.000016 - - -All baseline samples are nondetectsL09-M01D (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/22/2007 8/5/2010 8 0 100% 0 0.00016 0.0042 - - 0.00218 0.00133 61 14 0.054 No Trend 0.0048 - 0.00884 NoL09-M01D (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/22/2007 8/5/2010 8 8 0% 0 - - 0.000001 0.0000296 - - - - - - <0.000016 - - -All baseline samples are nondetectsL09-M01D (8) PFCs T PFOA MG/L 8/10/2006 8/5/2010 9 0 100% 0 0.0018 0.0031 - - 0.00253 0.00047 18 -17 0.054 No Trend 0.003 - 0.00486 NoL09-M01D (8) PFCs T PFOS MG/L 1/22/2007 8/5/2010 8 8 0% 0 - - 0.0000023 0.0000552 - - - - - - <0.000033 - - -All baseline samples are nondetectsN08-M01B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/25/2007 7/28/2010 8 7 13% 0 0.00000545 0.00000545 0.00000285 0.00001 3.39E-06 1.48E-0644 - - - <0.0000048 - - -<25% detection rate in baseline samplesN08-M01B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.00024 0.000404 - - 0.000331 0.000050 15 -6 0.274 No Trend 0.00031 - 0.000580YesN08-M01B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.000039 0.0001 - - 6.16E-05 2.15E-05 35 -2 0.452 No Trend 0.000082 - 0.000169 NoN08-M01B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/25/2007 7/28/2010 8 8 0% 0 - - 0.00000134 0.0000051 - - - - - - <0.0000024 - - -All baseline samples are nondetectsN08-M01B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.00051 0.000675 - - 0.000589 0.000060 10 8 0.199 No Trend 0.00055 - 0.000891 NoN08-M01B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/25/2007 7/28/2010 8 5 38% 0 0.0000042 0.0000095 0.0000049 0.00001 5.41E-06 1.94E-06 36 -7 0.227 No Trend <0.0000048 - 1.51E-05 NoN08-M01B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.00099 0.00131 - - 0.00116 0.00012 11 -8 0.199 No Trend 0.0012 - 0.00179 NoN08-M01B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.000122 0.000255 - - 0.000163 0.000043 26 5 0.309 No Trend 0.00017 - 0.000377 NoN08-M01B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/25/2007 7/28/2010 8 8 0% 0 - - 0.00000134 0.00000725 - - - - - - <0.0000024 - - -All baseline samples are nondetectsN08-M01B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.00077 0.00098 - - 0.000873 0.000075 9 -14 0.054 No Trend 0.00066 - 0.00125 NoN08-M01B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/25/2007 7/28/2010 8 6 25% 0 1.975E-06 0.00000315 0.0000019 0.00000539 2.18E-06 4.86E-07 22 -30.401 No Trend 0.0000079 - 4.61E-06YesN08-M01B (8) PFCs T PFOA MG/L 8/8/2006 7/28/2010 9 0 100% 0 0.00103 0.0019 - - 0.00144 0.00025 18 4 0.381 No Trend 0.0014 - 0.00271 NoN08-M01B (8) PFCs T PFOS MG/L 1/25/2007 7/28/2010 8 7 13% 0 3.375E-06 3.375E-06 0.0000038 0.00001 3.27E-06 1.08E-06 33 - - - 0.0000049 - - -<25% detection rate in baseline samplesN08-M01C (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/25/2007 7/28/2010 8 6 25% 0 0.000013 0.000015 0.0000093 0.000017 1.09E-05 2.29E-06 21 5 0.309 No Trend 0.000031 - 2.23E-05YesN08-M01C (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.00065 0.0039 - - 0.00198 0.00132 67 18 0.016 No Trend 0.0028 - 0.00859 NoN08-M01C (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.000094 0.00022 - - 0.000172 0.000049 28 3 0.401 No Trend 0.0003 - 0.000414YesN08-M01C (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/25/2007 7/28/2010 8 8 0% 0 - - 0.0000046 0.0000083 - - - - - - 0.000015 - - -All baseline samples are nondetectsN08-M01C (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.000953 0.0024 - - 0.00145 0.00060 41 22 0.002Upward0.002 - - -Upward trend for all dataN08-M01C (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/25/2007 7/28/2010 8 2 75% 0 0.0000146 0.00003 0.000016 0.000017 2.16E-05 6.45E-06 30 2 0.452 No Trend 0.000019 - 5.39E-05 NoN08-M01C (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.000873 0.0035 - - 0.00197 0.00097 49 22 0.002Upward0.0023 - - -No trend for all dataN08-M01C (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.000891 0.0026 - - 0.00167 0.00050 30 15 0.046 No Trend 0.0018 - 0.00415 NoN08-M01C (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/25/2007 7/28/2010 8 8 0% 0 - - 0.00000424 0.000021 - - - - - - <0.0000049 - - -All baseline samples are nondetectsN08-M01C (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.0007 0.0032 - - 0.00159 0.00090 57 18 0.016 No Trend 0.002 - 0.00610NoN08-M01C (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/25/2007 7/28/2010 8 2 75% 0 0.0000075 0.000048 0.00000651 0.0000083 1.92E-05 1.55E-05 80 11 0.109 No Trend 0.00019 - 9.66E-05YesN08-M01C (8) PFCs T PFOA MG/L 8/8/2006 7/28/2010 9 0 100% 0 0.00219 0.0037 - - 0.00275 0.00049 18 23 0.015 No Trend 0.0029 - 0.00521 NoN08-M01C (8) PFCs T PFOS MG/L 1/25/2007 7/28/2010 8 5 38% 0 0.00001 0.000012 0.0000093 0.000017 1.02E-05 9.41E-07 9 0 0.548 No Trend 0.000045 - 1.49E-05YesN08-M01D (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/25/2007 7/28/2010 8 8 0% 0 - - 0.0000046 0.000019 - - - - - - 0.0000071 - - -All baseline samples are nondetectsN08-M01D (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.00027 0.0008 - - 0.000514 0.000198 39 16 0.031 No Trend 0.00051 - 0.00151 NoN08-M01D (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.000036 0.000075 - - 4.92E-05 1.20E-05 24 6 0.274 No Trend 0.000055 -0.000109 NoN08-M01D (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/25/2007 7/28/2010 8 8 0% 0 - - 0.0000023 0.0000097 - - - - - - <0.0000073 - - -All baseline samples are nondetectsN08-M01D (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.00053 0.0012 - - 0.000792 0.000228 29 12 0.089 No Trend 0.0012 - 0.00193YesN08-M01D (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/25/2007 7/28/2010 7 3 57% 1 0.0000055 0.0000088 0.000005 0.00000913 6.26E-06 1.32E-06 21 0 0.563 No Trend <0.0000067 - 1.29E-05 NoN08-M01D (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.00096 0.0014 - - 0.00113 0.00014 13 22 0.002Upward0.0013 - - -Upward trend for all dataN08-M01D (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.00026 0.00055 - - 0.000372 0.000084 23 -3 0.401 No Trend 0.00025 - 0.000791 NoN08-M01D (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/25/2007 7/28/2010 8 8 0% 0 - - 0.0000023 0.0000092 - - - - - - <0.0000025 - - -All baseline samples are nondetectsN08-M01D (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/25/2007 7/28/2010 8 0 100% 0 0.00056 0.0017 - - 0.00107 0.00043 40 17 0.029 No Trend 0.0012 - 0.00320 NoN08-M01D (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/25/2007 7/28/2010 8 4 50% 0 0.0000027 0.0000056 0.0000025 0.0000097 3.61E-06 1.04E-06 29 7 0.227 No Trend 0.0000089 - 8.81E-06YesN08-M01D (8) PFCs T PFOA MG/L 8/8/2006 7/28/2010 9 0 100% 0 0.0013 0.0019 - - 0.00164 0.00018 11 -9 0.201 No Trend 0.0013 - 0.00256 No8/23/2013Page 5 of 7ChambersWorks_ResultTables-forAppendices.xlsxSTATISTICAL EVALUATION RESULTS FOR THE PFOA MONITORING PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMin Detected Max DetectedMin MDL ofNDsMax MDL of NDs Mean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControl LimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesBaseline Data (Excluding Outliers and Post-baseline Results)Trend Anaysis on Baseline Data- MannKendall Trend Test (=1%)Control Chart AnalysisBaseline Sample Date Range Sample Counts Exploratory Data AnalysisN08-M01D (8) PFCs T PFOS MG/L 1/25/2007 7/28/2010 8 7 13% 0 0.0000052 0.0000052 0.0000046 0.000019 4.28E-06 2.38E-06 56 - - - 0.0000053 - - -<25% detection rate in baseline samplesP06-M01B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 0.0000019 0.000011 - - - - - - 0.000004 - - -All baseline samples are nondetectsP06-M01B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 0.00012 0.000409 - - 0.000229 0.000092 40 -8 0.199 No Trend 0.00034 - 0.000691 NoP06-M01B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 0.0000065 0.000033 - - 2.28E-05 9.25E-06 41 2 0.452 No Trend 0.00002 -6.90E-05 NoP06-M01B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 0.00000095 0.0000052 - - - - - - <0.0000019 - - -All baseline samples are nondetectsP06-M01B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 0.00033 0.000689 - - 0.000481 0.000125 26 -15 0.046 No Trend 0.00067- 0.00110 NoP06-M01B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/23/2007 7/22/2010 8 7 13% 0 0.0000057 0.0000057 0.000002 0.0000111 3.06E-06 2.03E-06 66- - - <0.0000037 - - -<25% detection rate in baseline samplesP06-M01B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 0.00052 0.00117 - - 0.000753 0.000211 28 -16 0.031 No Trend 0.0011 - 0.00181 NoP06-M01B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/23/2007 7/22/2010 7 0 100% 1 0.000048 0.00009 - - 7.38E-05 1.38E-05 19 -13 0.035 No Trend 0.000075- 0.000143 NoP06-M01B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 0.00000095 0.0000052 - - - - - - <0.0000019 - - -All baseline samples are nondetectsP06-M01B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 0.00038 0.000739 - - 0.000566 0.000138 24 -12 0.089 No Trend 0.00069- 0.00125 NoP06-M01B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 0.00000095 0.00000643 - - - - - - <0.0000019 - - -All baseline samples are nondetectsP06-M01B (8) PFCs T PFOA MG/L 6/19/2003 7/22/2010 10 0 100% 0 0.00078 0.00136 - - 0.000987 0.000176 18 -16 0.092 No Trend 0.0013 - 0.00187 NoP06-M01B (8) PFCs T PFOS MG/L 6/19/2003 7/22/2010 9 8 11% 0 0.0000034 0.0000034 0.000002 0.00005 5.24E-06 7.59E-06 145 - - - <0.0000037 - - -<25% detection rate in baseline samplesP06-M01D (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 0.000002 0.00000305 - - - - - - <0.0000019 - - -All baseline samples are nondetectsP06-M01D (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/23/2007 7/22/2010 7 0 100% 1 0.0000033 0.000022 - - 1.14E-05 6.20E-06 54 1 0.500 No Trend 0.000011- 4.24E-05 NoP06-M01D (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/23/2007 7/22/2010 7 4 43% 1 0.0000029 0.00000629 0.000001 0.0000011 2.45E-06 1.92E-06 78 -7 0.191 No Trend <0.00000093 - 1.20E-05YesP06-M01D (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 0.00000099 0.0000011 - - - - - - <0.00000093 - - -All baseline samples are nondetectsP06-M01D (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/23/2007 7/22/2010 7 0 100% 1 0.0000019 0.000017 - - 7.54E-06 5.39E-06 71 1 0.500 No Trend 0.0000062 - 3.45E-05YesP06-M01D (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 0.000002 0.00000234 - - - - - - <0.0000019 - - -All baseline samples are nondetectsP06-M01D (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 0.0000053 0.000073 - - 2.18E-05 2.23E-05 102 0 0.548 No Trend 0.0000098 - 0.000133 NoP06-M01D (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/23/2007 7/22/2010 7 4 43% 1 0.0000029 0.00000433 0.00000099 0.0000011 2.21E-06 1.48E-06 67 -7 0.191 No Trend <0.00000093 - 9.61E-06YesP06-M01D (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 9.45E-07 0.0000025 - - - - - - <0.00000093 - - -All baseline samples are nondetectsP06-M01D (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/23/2007 7/22/2010 7 0 100% 1 0.0000053 0.000044 - - 1.90E-05 1.51E-05 80 -3 0.386 No Trend 0.0000092 - 9.47E-05 NoP06-M01D (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/23/2007 7/22/2010 8 7 13% 0 0.0000035 0.0000035 0.00000099 0.00000209 9.49E-07 1.05E-06 110 -- - <0.00000093 - - -<25% detection rate in baseline samplesP06-M01D (8) PFCs T PFOA MG/L 7/20/2006 7/22/2010 9 0 100% 0 0.0000025 0.000059 - - 1.62E-05 1.85E-05 114 -8 0.238 No Trend 0.000004 - 0.000109 NoP06-M01D (8) PFCs T PFOS MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 0.000002 0.00000234 - - - - - - <0.0000019 - - -All baseline samples are nondetectsP06-M01E (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 0.00000197 0.00000215 - - - - - - <0.0000018 - - -All baseline samples are nondetectsP06-M01E (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 6.535E-06 0.000077 - - 2.73E-05 2.41E-05 88 23 0.008Upward0.000096 - - -Upward trend for all dataP06-M01E (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/23/2007 7/22/2010 7 6 14% 1 2.625E-06 2.625E-06 0.000001 0.000001 8.04E-07 8.03E-07 100 - - - 0.0000078 - - -<25% detection rate in baseline samplesP06-M01E (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/23/2007 7/22/2010 8 7 13% 0 0.00000101 0.00000101 9.61E-07 0.000001 5.61E-07 1.81E-07 32 - - - 0.000001 - - -<25% detection rate in baseline samplesP06-M01E (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/23/2007 2/3/2010 7 0 100% 1 0.0000076 0.000028 - - 1.38E-05 6.65E-06 48 11 0.068 No Trend 0.000049 - 4.71E-05YesP06-M01E (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 0.00000197 0.000002185 - - - - - - <0.0000018 - - -All baseline samples are nondetectsP06-M01E (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 0.00002085 0.00018 - - 5.52E-05 5.31E-05 96 16 0.031 No Trend 0.000099 - 0.000321 NoP06-M01E (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/23/2007 7/22/2010 8 5 38% 0 2.105E-06 0.00000264 0.000001 0.000001 1.49E-06 6.52E-07 44 -4 0.360No Trend 0.0000051 - 4.76E-06YesP06-M01E (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 8.76E-07 0.0000025 - - - - - - <0.0000009 - - -All baseline samples are nondetectsP06-M01E (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 0.00001 0.000098 - - 2.97E-05 3.02E-05 101 20 0.007Upward0.000072 - - -Upward trend for all dataP06-M01E (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/23/2007 7/22/2010 8 7 13% 0 0.00000117 0.00000117 0.000001 0.000001255 6.00E-07 2.35E-07 39 -- - <0.0000009 - - -<25% detection rate in baseline samplesP06-M01E (8) PFCs T PFOA MG/L 8/7/2006 2/3/2010 8 0 100% 1 0.0000085 0.000027 - - 1.57E-05 6.94E-06 44 -8 0.199 No Trend 0.000057 - 5.03E-05YesP06-M01E (8) PFCs T PFOS MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 0.00000197 0.00000217 - - - - - - <0.0000018 - - -All baseline samples are nondetectsP06-M02C (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/23/2007 7/22/2010 8 7 13% 0 0.00000716 0.00000716 0.000002 0.0000044 2.05E-06 2.12E-06104 - - - <0.00000195 - - -<25% detection rate in baseline samplesP06-M02C (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 0.000122 0.000224 - - 0.000151 0.000033 22 7 0.227 No Trend 0.000185 -0.000314 NoP06-M02C (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/23/2007 7/22/2010 8 1 88% 0 0.0000012 0.0000064 0.000001 0.000001 3.13E-06 1.89E-06 60 -4 0.360 No Trend 0.000011 - 1.26E-05 NoP06-M02C (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/23/2007 7/22/2010 8 7 13% 0 0.0000023 0.0000023 0.00000099 0.00000102 7.26E-07 6.36E-07 88 - -- <0.000000965 - - -<25% detection rate in baseline samplesP06-M02C (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 0.00021 0.00036 - - 0.000282 0.000056 20 -10 0.138 No Trend 0.00039 -0.000562 NoP06-M02C (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/23/2007 7/22/2010 8 3 63% 0 0.0000029 0.00000604 0.000002 0.000002 3.37E-06 1.40E-06 42-13 0.072 No Trend 0.0000034 - 1.04E-05 NoP06-M02C (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 0.00035 0.00061 - - 0.000472 0.000095 20 -10 0.138 No Trend 0.00049 - 0.000949 NoP06-M02C (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 0.0000072 0.000021 - - 1.60E-05 4.75E-06 30 -6 0.274 No Trend 0.000043 - 3.98E-05YesP06-M02C (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/23/2007 7/22/2010 8 8 0% 0 - - 0.00000099 0.0000025 - - - - - - <0.000000965 - - -All baseline samples are nondetectsP06-M02C (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/23/2007 7/22/2010 8 0 100% 0 0.00028 0.00049 - - 0.000385 0.000080 21 -17 0.029 No Trend 0.0003 - 0.000787 NoP06-M02C (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/23/2007 7/22/2010 8 7 13% 0 0.00000498 0.00000498 0.00000099 0.00000102 1.06E-06 1.58E-06 149 - - - <0.000000965 - - -<25% detection rate in baseline samplesP06-M02C (8) PFCs T PFOA MG/L 7/20/2006 7/22/2010 9 0 100% 0 0.000109 0.00041 - - 0.000274 0.000088 32 -2 0.460 No Trend 0.000495 - 0.000713 NoP06-M02C (8) PFCs T PFOS MG/L 1/23/2007 7/22/2010 8 7 13% 0 0.00000774 0.00000774 0.000002 0.0000021 1.85E-06 2.38E-06 129 - - - 0.00000645 - - -<25% detection rate in baseline samplesP21-M01B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/17/2007 7/9/2010 8 8 0% 0 - - 0.000201 0.0013 - - - - - - <0.00098 - - -All baseline samples are nondetectsP21-M01B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/17/2007 7/9/2010 8 0 100% 0 0.00389 0.071 - - 0.0412 0.0208 51 -8 0.199 No Trend 0.052 - 0.145 NoP21-M01B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/17/2007 7/9/2010 8 5 38% 0 0.000978 0.0058 0.00031 0.00065 0.00156 0.00203 130 -8 0.199 No Trend 0.0016 - 0.0117 NoP21-M01B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/17/2007 7/9/2010 8 8 0% 0 - - 0.00009 0.00065 - - - - - - <0.00049 - - -All baseline samples are nondetectsP21-M01B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/17/2007 7/9/2010 8 0 100% 0 0.001 0.053 - - 0.0319 0.0190 60 -7 0.227 No Trend 0.053 - 0.127 NoP21-M01B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/17/2007 7/9/2010 8 8 0% 0 - - 0.000203 0.0013 - - - - - - <0.00098 - - -All baseline samples are nondetectsP21-M01B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/17/2007 7/9/2010 8 0 100% 0 0.00936 0.37 - - 0.168 0.111 66 -6 0.274 No Trend 0.2 - 0.721 NoP21-M01B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/17/2007 7/9/2010 8 1 88% 0 0.0011 0.0063 0.00065 0.00065 0.00308 0.00192 62 -8 0.199 No Trend 0.0039 - 0.0127 NoP21-M01B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/17/2007 7/9/2010 8 8 0% 0 - - 0.000082 0.0013 - - - - - - <0.00049 - - -All baseline samples are nondetectsP21-M01B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/17/2007 7/9/2010 8 0 100% 0 0.00863 0.086 - - 0.0612 0.0244 40 -8 0.199 No Trend 0.067 - 0.183 NoP21-M01B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/17/2007 7/9/2010 8 8 0% 0 - - 0.000111 0.00065 - - - - - - <0.00049 - - -All baseline samples are nondetectsP21-M01B (8) PFCs T PFOA MG/L 7/7/2006 7/9/2010 9 1 89% 0 0.0112 0.091 0.00065 0.00065 0.0507 0.0333 66 2 0.460 No Trend 0.084 - 0.217 NoP21-M01B (8) PFCs T PFOS MG/L 1/17/2007 7/9/2010 8 8 0% 0 - - 0.000203 0.0013 - - - - - - <0.00098 - - -All baseline samples are nondetectsR09-M02B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/22/2007 7/29/2010 8 7 13% 0 0.0000031 0.0000031 0.000007 0.0000384 7.51E-06 5.42E-06 72- - - <0.00000965 - - -<25% detection rate in baseline samplesR09-M02B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 7/25/2007 7/29/2010 7 0 100% 1 0.00031 0.00051 - - 0.000370 0.000070 19 2 0.437 No Trend 0.00044 - 0.000722YesR09-M02B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/22/2007 7/29/2010 8 0 100% 0 0.000028 0.00025 - - 0.000112 0.000085 76 8 0.199 No Trend 0.0000545 -0.000536 NoR09-M02B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/22/2007 7/29/2010 8 8 0% 0 - - 0.00000099 0.0000172 - - - - - - <0.00000485 - - -All baseline samples are nondetects8/23/2013Page 6 of 7ChambersWorks_ResultTables-forAppendices.xlsxSTATISTICAL EVALUATION RESULTS FOR THE PFOA MONITORING PROGRAMWell Analyte GroupTotal /DissolvedAnalyte UnitFirst SampleDateLast SampleDateNo. ofSamplingPeriodsNo. of NDsDetectionRateNo. ofOutliersExcludedMin Detected Max DetectedMin MDL ofNDsMax MDL of NDs Mean Std Dev CV (%)Mann-Kendall Sstatisticp-valueTrend TestResultCurrent Result(Jan 13)LowerControlLimitUpperControl LimitOut ofControl(OOC)?Trend Test Result for All Data(if trend pre-existed in baseline data); and Other NotesBaseline Data (Excluding Outliers and Post-baseline Results)Trend Anaysis on Baseline Data- MannKendall Trend Test (=1%)Control Chart AnalysisBaseline Sample Date Range Sample Counts Exploratory Data AnalysisR09-M02B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 7/25/2007 7/29/2010 7 0 100% 1 0.00043 0.0011 - - 0.000738 0.000257 35 -1 0.500 No Trend 0.000755 - 0.00202 NoR09-M02B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/22/2007 7/29/2010 8 8 0% 0 - - 0.000002 0.0000388 - - - - - - <0.00000965 - - -All baseline samples are nondetectsR09-M02B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 7/25/2007 7/29/2010 7 0 100% 1 0.00073 0.002 - - 0.00118 0.00051 43 -2 0.437 No Trend 0.00165 - 0.00372 NoR09-M02B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/22/2007 2/4/2010 7 0 100% 1 0.000177 0.00041 - - 0.000299 0.000089 30 9 0.119 No Trend 0.000345 - 0.000744YesR09-M02B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/22/2007 7/29/2010 8 8 0% 0 - - 0.00000099 0.000018 - - - - - - <0.00000485 - - -All baseline samples are nondetectsR09-M02B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 7/25/2007 7/29/2010 7 0 100% 1 0.0006 0.0012 - - 0.000868 0.000238 27 -6 0.222 No Trend 0.0011 - 0.00206YesR09-M02B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/22/2007 7/29/2010 8 7 13% 0 0.0000051 0.0000051 0.00000099 0.0000224 4.27E-06 3.28E-06 77 - - -<0.00000485 - - -<25% detection rate in baseline samplesR09-M02B (8) PFCs T PFOA MG/L 8/9/2006 7/29/2010 8 0 100% 1 0.0011 0.0024 - - 0.00184 0.00043 24 3 0.401 No Trend 0.00195 - 0.00400 NoR09-M02B (8) PFCs T PFOS MG/L 1/22/2007 7/29/2010 8 8 0% 0 - - 0.000002 0.0000388 - - - - - - <0.00000965 - - -All baseline samples are nondetectsR10-M01C (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/22/2007 7/29/2010 8 7 13% 0 0.0000056 0.0000056 0.000002 0.00000408 1.83E-06 1.56E-06 86 - - - <0.000002 - - -<25% detection rate in baseline samplesR10-M01C (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/22/2007 7/29/2010 8 0 100% 0 0.000038 0.000102 - - 6.58E-05 2.58E-05 39 2 0.452 No Trend 0.00012 - 0.000195YesR10-M01C (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/22/2007 7/29/2010 8 4 50% 0 0.00000426 0.000054 0.00000099 0.00000204 1.49E-05 1.93E-05 129 8 0.199 No Trend 0.0000053 - 0.000111 NoR10-M01C (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/22/2007 7/29/2010 8 5 38% 0 0.000002 0.0000046 0.00000099 0.00000204 1.88E-06 1.29E-06 68 10 0.138 No Trend <0.000001 - 8.31E-06 NoR10-M01C (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/22/2007 7/29/2010 8 0 100% 0 0.000054 0.000194 - - 0.000113 0.000055 49 -6 0.274 No Trend 0.00024- 0.000388 NoR10-M01C (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/22/2007 7/29/2010 8 8 0% 0 - - 0.000002 0.00000408 - - - - - - <0.000002 - - -All baseline samples are nondetectsR10-M01C (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/22/2007 7/29/2010 8 0 100% 0 0.00011 0.000355 - - 0.000221 0.000093 42 -4 0.360 No Trend 0.00031 - 0.000687 NoR10-M01C (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/22/2007 7/29/2010 8 0 100% 0 0.0000018 0.000028 - - 1.11E-05 9.89E-06 89 4 0.360 No Trend 0.00003 -6.06E-05 NoR10-M01C (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/22/2007 7/29/2010 8 8 0% 0 - - 9.13E-07 0.00000204 - - - - - - <0.000001 - - -All baseline samples are nondetectsR10-M01C (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/22/2007 7/29/2010 8 0 100% 0 0.000095 0.000378 - - 0.000192 0.000093 48 -5 0.309 No Trend 0.00021- 0.000654 NoR10-M01C (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/22/2007 7/29/2010 8 5 38% 0 0.0000029 0.0000042 0.00000099 0.00000204 1.88E-06 1.21E-06 64 120.089 No Trend <0.000001 - 7.91E-06 NoR10-M01C (8) PFCs T PFOA MG/L 8/9/2006 7/29/2010 9 0 100% 0 0.000065 0.000263 - - 0.000175 0.000079 45 -4 0.381 No Trend 0.00042 - 0.000571YesR10-M01C (8) PFCs T PFOS MG/L 1/22/2007 7/29/2010 8 8 0% 0 - - 0.000002 0.00000408 - - - - - - 0.0000036 - - -All baseline samples are nondetectsR10-M01E (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/22/2007 7/29/2010 8 8 0% 0 - - 0.000002 0.0000061 - - - - - - <0.0000022 - - -All baseline samples are nondetectsR10-M01E (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/22/2007 7/29/2010 8 0 100% 0 0.000014 0.000071 - - 4.64E-05 2.10E-05 45 12 0.089 No Trend 0.000054- 0.000152 NoR10-M01E (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/22/2007 7/29/2010 8 5 38% 0 0.0000391 0.0000608 0.00000099 0.000003 1.99E-05 2.50E-05 126 -6 0.274 No Trend <0.0000011 - 0.000145 NoR10-M01E (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/22/2007 7/29/2010 8 5 38% 0 0.00000402 0.0000096 0.00000099 0.000003 2.94E-06 2.93E-06 100 -20.452 No Trend <0.0000011 - 1.76E-05 NoR10-M01E (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/22/2007 7/29/2010 8 0 100% 0 0.000016 0.0000651 - - 3.45E-05 1.78E-05 52 4 0.360 No Trend 0.000035 - 0.000124 NoR10-M01E (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/22/2007 7/29/2010 8 8 0% 0 - - 0.000002 0.0000061 - - - - - - <0.0000022 - - -All baseline samples are nondetectsR10-M01E (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/22/2007 7/29/2010 8 0 100% 0 0.000028 0.00011 - - 6.44E-05 2.86E-05 44 3 0.401 No Trend 0.000057 - 0.000207 NoR10-M01E (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/22/2007 7/29/2010 8 5 38% 0 0.0000196 0.0000496 0.00000099 0.000003 1.20E-05 1.65E-05 137 -6 0.274 No Trend <0.0000011 - 9.45E-05 NoR10-M01E (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/22/2007 7/29/2010 8 8 0% 0 - - 0.00000099 0.000003 - - - - - - <0.0000011 - - -All baseline samples are nondetectsR10-M01E (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/22/2007 7/29/2010 8 0 100% 0 0.000021 0.000131 - - 5.86E-05 3.59E-05 61 2 0.452 No Trend 0.000039- 0.000238 NoR10-M01E (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/22/2007 7/29/2010 8 5 38% 0 0.00000643 0.0000092 0.00000099 0.000003 3.55E-06 3.37E-06 95 -4 0.360 No Trend <0.0000011 - 2.04E-05 NoR10-M01E (8) PFCs T PFOA MG/L 8/9/2006 7/29/2010 9 0 100% 0 0.0000038 0.000471 - - 0.000105 0.000154 146 -2 0.460 No Trend 0.000017 - 0.000872 NoR10-M01E (8) PFCs T PFOS MG/L 1/22/2007 7/29/2010 8 8 0% 0 - - 0.000002 0.0000061 - - - - - - <0.0000022 - - -All baseline samples are nondetectsZ28-M01B (8) PFCs T PERFLUOROBUTANE SULFONIC ACID MG/L 1/30/2007 8/4/2010 8 6 25% 0 1.7275E-06 0.00000212 0.000002 0.0000042 1.81E-06 1.57E-07 90 0.548 No Trend <0.00000215 - 2.59E-06 NoZ28-M01B (8) PFCs T PERFLUOROBUTANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.000027 0.0000515 - - 4.00E-05 8.22E-06 21 12 0.089 No Trend 0.0000595 - 8.11E-05 NoZ28-M01B (8) PFCs T PERFLUORODECANOIC ACID MG/L 1/30/2007 8/4/2010 8 5 38% 0 9.975E-07 0.0000018 0.00000099 0.0000021 1.20E-06 3.33E-07 28 7 0.227No Trend 0.0000018 - 2.87E-06 NoZ28-M01B (8) PFCs T PERFLUORODODECANOIC ACID MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.00000099 0.0000021 - - - - - - <0.00000105 - - -All baseline samples are nondetectsZ28-M01B (8) PFCs T PERFLUOROHEPTANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.000071 0.0001035 - - 8.60E-05 1.08E-05 13 4 0.360 No Trend 0.0000975 - 0.000140 NoZ28-M01B (8) PFCs T PERFLUOROHEXANE SULFONIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.0000048 0.0000091 - - 6.70E-06 1.33E-06 20 -14 0.054 No Trend 0.0000086 - 1.33E-05 NoZ28-M01B (8) PFCs T PERFLUOROHEXANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.000149 0.00023 - - 0.000176 0.000027 16 10 0.138 No Trend 0.000175 - 0.000313 NoZ28-M01B (8) PFCs T PERFLUORONONANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.0000113 0.000029 - - 1.66E-05 5.75E-06 35 8 0.199 No Trend 0.0000225- 4.54E-05 NoZ28-M01B (8) PFCs T PERFLUOROOCTANE SULFONAMIDE MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 9.19E-07 0.0000053 - - - - - - <0.00000105 - - -All baseline samples are nondetectsZ28-M01B (8) PFCs T PERFLUOROPENTANOIC ACID MG/L 1/30/2007 8/4/2010 8 0 100% 0 0.000093 0.000131 - - 0.000104 0.000013 13 6 0.274 No Trend 0.0000965- 0.000172 NoZ28-M01B (8) PFCs T PERFLUOROUNDECANOIC ACID MG/L 1/30/2007 8/4/2010 8 8 0% 0 - - 0.00000099 0.0000021 - - - - - - <0.00000105 - - -All baseline samples are nondetectsZ28-M01B (8) PFCs T PFOA MG/L 8/10/2006 8/4/2010 9 0 100% 0 0.000157 0.00027 - - 0.000201 0.000034 17 11 0.149 No Trend 0.000205 - 0.000373 NoZ28-M01B (8) PFCs T PFOS MG/L 1/30/2007 8/4/2010 8 5 38% 0 0.00000181 0.0000029 0.000002 0.0000042 2.05E-06 3.79E-07 19 -3 0.401 No Trend 0.00000935- 3.94E-06YesNotes:(1) The average value of normal sample and field duplicate is used as a single data point. Similarly, the average value of samples collected from the same well on the same date is used as a single data point.(2) For data sets with non-detects (but with at least two or more detected results), the mean and standard deviation were estimated by the Kaplan-Meier method. Otherwise, the convention of using one-half the method detection limit (MDL) for non-detectswas used to complete the calculation of summary statistics.(3) The Mann-Kendall trend test is performed at a 1% significance level on baseline data, excluding outliers.(4) Only statistical significant upward/downward trend result is shown under "Trend Test Result". Insignificant trend test result is indicated as "No Trend". An "-" indicates the trend test is not performed.(5) Out-of-control (OOC) condition is only evaluated for sample results collected in the second half of 2011.(6) Control limits are determined to test the upper bound for all analytes, except for dissolved oxygen, for which the lower bound is tested. For pH, temperature, and redox, 2-sided (upper and lower) limits are used.8/23/2013Page 7 of 7ChambersWorks_ResultTables-forAppendices.xlsx0

0.00001 0.00002 0.00003 0.00004 0.00005 0.00006

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=AA25

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorononanoic acid, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.000001 0.000002 0.000003 0.000004 0.000005 0.000006 0.000007 0.000008

06 07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=AA25

- M01C,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=PFOA, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.000002 0.000004 0.000006 0.000008 0.00001 0.000012 0.000014

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=C11

- M01C,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorobutane sulfonic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0002 0.0004 0.0006 0.0008 0.001 0.0012

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=C11

- M01C,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorodecanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0005 0.001 0.0015 0.002 0.0025 0.003

06 07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=C11

- M01C,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=PFOA, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.000002 0.000004 0.000006 0.000008 0.00001 0.000012 0.000014

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=C11

- M01C,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=PFOS, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0000005 0.000001 0.0000015 0.000002 0.0000025 0.000003 0.0000035

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=C11

- M01E,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorohexanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.000005 0.00001 0.000015 0.00002 0.000025

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=C11

- M01E,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=PFOA, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.000001 0.000002 0.000003 0.000004 0.000005 0.000006 0.000007

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=C11

- M01E,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluoroheptanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=D15

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorodecanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=D15

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorononanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0001 0.0002 0.0003 0.0004 0.0005 0.0006 0.0007 0.0008

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=F07

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorodecanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 0.0016 0.0018 0.002

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=F07

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluoroheptanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=F07

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorohexanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.00002 0.00004 0.00006 0.00008 0.0001 0.00012 0.00014 0.00016

08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=F08

- M01A,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorobutane sulfonic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45

08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=F08

- M01A,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorobutanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.02 0.04 0.06 0.08 0.1 0.12

08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=F08

- M01A,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorohexanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.00002 0.00004 0.00006 0.00008 0.0001 0.00012 0.00014 0.00016 0.00018

08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=F08

- M01A,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorododecanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.02 0.04 0.06 0.08 0.1 0.12

08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=F08

- M01A,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorohexanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035

08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=F08

- M01A,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluoroundecanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=F08

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=PFOA, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.000005 0.00001 0.000015 0.00002 0.000025 0.00003

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=G04

- M01E,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorobutanoic acid, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 0.0016 0.0018

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=G05

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorodecanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004 0.0045

06 07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=R09

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=PFOA, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=G09

- M01A,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorodecanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035 0.0004

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=J05

- M01C,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=PFOA, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0001 0.0002 0.0003 0.0004 0.0005 0.0006

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=L09

- M01C,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorobutane sulfonic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0 0.0001 0.0002 0.0003 0.0004 0.0005 0.0006 0.0007 0.0008 0.0009 0.001

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=L09

- M01C,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorobutanoic acid, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0001 0.0002 0.0003 0.0004 0.0005 0.0006 0.0007 0.0008 0.0009 0.001

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=N08

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluoroheptanoic acid, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035 0.0004

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=N08

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorononanoic acid, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.000002 0.000004 0.000006 0.000008 0.00001 0.000012 0.000014

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=N08

- M01D,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorohexane sulfonic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.00002 0.00004 0.00006 0.00008 0.0001 0.00012 0.00014 0.00016

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=P06

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorononanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.000005 0.00001 0.000015 0.00002 0.000025 0.00003 0.000035 0.00004 0.000045

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=P06

- M01D,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorobutanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.000005 0.00001 0.000015 0.00002 0.000025 0.00003 0.000035 0.00004 0.000045

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=P06

- M01D,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorodecanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.000005 0.00001 0.000015 0.00002 0.000025 0.00003 0.000035 0.00004 0.000045 0.00005

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=P06

- M01D,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluoroheptanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.000002 0.000004 0.000006 0.000008 0.00001 0.000012 0.000014 0.000016 0.000018 0.00002

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=P06

- M01D,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorononanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004 0.0045

06 07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=R09

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=PFOA, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.00005 0.0001 0.00015 0.0002 0.00025

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=P06

- M01E,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluoroheptanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.00002 0.00004 0.00006 0.00008 0.0001 0.00012 0.00014 0.00016 0.00018 0.0002

06 07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=P06

- M01E,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=PFOA, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 0.0016

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=R09

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorobutanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0005 0.001 0.0015 0.002 0.0025

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=R09

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluoroheptanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=R09

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorohexanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.0001 0.0002 0.0003 0.0004 0.0005 0.0006 0.0007 0.0008 0.0009 0.001

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=R09

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorononanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.0005 0.001 0.0015 0.002 0.0025 0.003

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=R09

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluoropentanoic acid, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline

0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004 0.0045

06 07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=R09

- M02B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=PFOA, Total/Dissolved=T, Units=mg/l

Control Chart Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.000001 0.000002 0.000003 0.000004 0.000005 0.000006 0.000007 0.000008 0.000009

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=R10

- M01C,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluorododecanoic acid, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.000001 0.000002 0.000003 0.000004 0.000005 0.000006 0.000007 0.000008 0.000009

07 08 09 10 11 12 13 mg/l

Year Program=(9) PFOA, Well=R10

- M01C,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluoroundecanoic acid, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline0

0.00002 0.00004 0.00006 0.00008 0.0001 0.00012 0.00014 0.00016

07 08 09 10 11 12 mg/l

Year Program=(9) PFOA, Well=Z28

- M01B,
Statistical Test=One Sided HigherAnalyte Group=(8) PFCs,
Analyte=Perfluoroheptanoic acid, Total/Dissolved=T, Units=mg/l

Recorded Measurement Cumulative Sum (CUSUM) Control Limit(s)

Out of Control Measurement Out of Control CUSUM End of Baseline