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Groundwater Monitoring Report - Plant Vogtle Landfill 3, Solid Waste Permit Nos. 017-007D(L)(I), Burke County, Georgia, March 2007
	ML073300644
Person / Time
Site:	Vogtle
Issue date:	03/09/2007
From:	Godfrey J; Southern Nuclear Operating Co
To:	Cown J; Office of Nuclear Reactor Regulation, State of GA
References
	017-007D(L)(I), EV-07-0574
	Download: ML073300644 (135)
	v • d • e

Southern Nuclear Ope.rating Company. Inc.

I 42 Inverness Center Parkway Birmingham, Alabama 35242 SOUTHERN ~

COMPANY El1ergj! to Serve Your World'"

March 9, 2007 FEDERAL EXPRESS Vogtle Electric Generating Plant Landfill #3 Solid Waste Permit No. 017-007D(L)(I)

Mr. Jeff Gown Program Manager - Solid Waste Management Program Georgia Environmental Protection Division 4244 International Parkway, Suite 104 Atlanta, GA 30354

Dear Mr. Gown:

File: E.03.41 Log: EV-07-0574 Pursuant to EPD Solid Waste Rule 391-3-4-.14, and in accordance with the Plant Vogtle Landfill #3 approved landfill groundwater monitoring program, Southern Nuclear is submitting the December, 2006 semi-annual groundwater monitoring report. This report was prepared for Southern Nuclear by the Dextra Group and was completed in March, 2007. Statistically significant increases over background were indicated for several analyzed parameters in GWC-13 and GWG-14. In accordance with Rule 391-3-4, Southern Nuclear will place a notice in the landfill operating record within 14 days of submittal of this report. The notice will indicate which constituents have shown statistically higher concentrations compared to the background wells.

Based on previous detections of mercury in several wells during Appendix II sampling, Southern Nuclear will continue to perform analysis for mercury in all Landfill #3 wells during the routine groundwater sampling events.

Please find enclosed the December, 2006 landfill groundwater monitoring report for this sampling period. If you have any questions regarding this information, please contact Mickey Perry at (205) 992-6994.

Sincere~y,,

f'

)wtu;emh J. M. Godfrey Manager - Environmental Affairs JMG/MEP:ahl Enclosure

J

'EV-07-0574 Page 3 Georgia Environmental Protection Division Mr. Jeff Cown cc:

Mr. Michael Kemp (w/o)

Mr. Earl Hinkle (w/o)

Mr. AI Frazer (East Central Division (w/o)

Mr. Kurt Batsell (Dextra) (w/o)

EV-07-0574 Page 4 Georgia Environmental Protection Division Mr. Jeff Cown bc:

T. E. Tynan (w/o)

J. G. Aufdenkampe (w/o)

N. D. Dennis (w/o)

C. L. Buck (w/o)

S. A. Varnum (w/o)

J. A. Joyner (w/o)

D. G. Goodwin (Return Receipt)

SNC Document Management - Vogtle (Return Receipt)

GROUNDWATER MONITORING REPORT PLANT VOGTLE LANDFILL #3 SOLID WASTE PERMIT No. 017-007D(L)(I)

BURKE COUNTY, GEORGIA MARCH 2007 PREPARED FOR:

Southern Nuclear Operating Company, Inc.

40 Inverness Center Parkway Birmingham, Alabama 35201 PREPARED By:

Kurt R. Batse!, P.E.

Georgia License Number 16594 The Dextra Group, Inc.

1205 Johnson Ferry Road Dextra Suite #136-446 Marietta, Georgia 30068

TABLE OF CONTENTS 1 -Introduction 1

2 - Monitoring Well Network 1

3 - Groundwater Flow Rate and Directional Data 2

3.1 Geology/Hydrogeology 3.2 Groundwater Elevations and Gradients 4 - Sampling Procedures and Parameter Analyses 3

4.1 Procedures and Field Measurements 4.2 Parameter Analyses 5 - Groundwater Quality Evaluation 4

5.1 Detected Parameters 5.2 Statistical Analyses 6 - Conclusions 5

In Order Following Page 5 Tables 1 - Groundwater Elevations and Monitoring Well Construction Details 2 - Groundwater Sampling Field Measurements 3 - Constituents for Detection Monitoring 4 - Summary of Detected Parameters Figures 1 - Groundwater Contour Elevation Map, December 4-5, 2006 Appendices A - Hydraulic Gradient Calculation Sheets B - Laboratory Analytical Reports C - Statistical Analyses

1 - Introduction This report presents the results of groundwater sampling conducted in December 2006 at private solid waste Landfill #3 operated by Southern Nuclear Operating Company, Inc. (SNC) at Plant Vogtle in Waynesboro, Georgia. Groundwater monitoring was initiated in 2002 in accordance with the approved Groundwater Monitoring Plan for the landfill. The landfill is operated under Solid Waste Permit #017-007D(L)(I) and used for disposal of non-putrescible, non-liquid office and solid waste as well as construction/demolition debris such as asbestos insulation, wooden pallets and concrete. Landfill #3, permitted in 1987, has been utilized solely for construction and demolition debris disposal since 1992.

Sampling, analyses and data evaluation were conducted in accordance with the rules of the Georgia Department of Natural Resources Environmental Protection Division (EPD), Chapter 391-3-4, the September 1991 "Manual for Groundwater Monitoring" and the approved Groundwater Monitoring Plan for the landfill.

The findings of the initial four sampling events, conducted from August 2002 through December 2002, and subsequent semi-annual sampling events are presented in reports previously submitted to the EPD. This report presents the results of the December 2006 semi-annual monitoring event.

Subsequent reports will be prepared upon completion of semi-annual monitoring events as scheduled in the Groundwater Monitoring Plan.

2 - Monitoring Well Network The groundwater monitoring well network consists of nine permanent monitoring wells located along the perimeter of the waste management unit boundary of Landfill #3 (Figure 1). As shown in the figure, the wells are located outside of, but as close as practical to, the waste disposal areas. The wells are screened within the uppermost water-producing zones underlying the landfill, which occur from approximately 30 to 80 feet below land surface at Landfill #3.

The nine permanent groundwater monitoring wells at Landfill #3 were installed in September 2001, July 2002 and June 2005. The well construction details are presented in Table 1. As noted in the table, well GWC-16 has been dry during each groundwater monitoring event. Wells GWA-7/MW-7 and GWA-15/MW-15 are located at the south and southwest portions of the landfill boundary.

Wells GWC-5/MW-5, GWC-13/MW-13 and GWC-14/MW-14 are located along the eastern portion of the landfill boundary, and wells GWB-6/MW-6 and GWB-16/MW-16 are located along the northern landfill boundary. Wells GWC-17/MW-17 and GWC-18/MW-18 were recently installed at the southeast corner of the landfill as pan of the contamination assessment program at Landfill #3.

Well GWA-7/MW-7 was initially treated as a compliance (downgradient) well for Landfill #3.

However, due to review of water level measurements showing this well to be side gradient from the active fill area of the landfill, well GWA-7/MW-7 was evaluated as a background well in the monitoring reports from the June 2003 and December 2003 sampling events. Based on the consistent detection of trichlorofluoromethane and the June 2004 detection of trichloroethene in Well GWA-7/rvrw-7, it was decided to return to evaluating this well as a compliance well. This approach was used in this monitoring report. The most appropriate designation for this well will continue to be evaluated in light of future monitoring results. For this report, well GWA-15/MW-15 is the designated background well, and the remaining wells are designated compliance wells. The wells will be referred to as GWC-5, GWB-6, GWA-7, GWC-13, GWC-14, GWA-15, GWB-16, GWC-17 and GWC-18 in this report in accordance with the EPD's well identification guidelines.

Two stormwater sediment ponds were completed in 2004 in accordance with the approved Design and Operational Plan for the Vogtle Landfill #3. As there was no discharge from either pond at the time of the December 2006 groundwater monitoring event, no surface water samples were collected from the surface water monitoring stations located at the pond outfalls.

3 - Groundwater Flow Rate and Directional Data 3.1 Geology/Hydrogeology The geology of the Plant Vogtle site consists of sedimentary deposits within the Coastal Plain physiographic province of Georgia. These sediments consist of unconsolidated sands, silts and clays comprised of marine and non-marine fluvial deposits. Marls and limestone were also encountered at depth in deep borings completed at the landfill. The marls encountered during drilling were components of the Irwinton Sand member. Either all or parts of the Barnwell Group members (except the Utley limestone member) were also encountered in the orner borings conducted at the landfill. Underly1ng the Barnwell Group is the Lisbon Formation with its uppermost unit, the Blue Bluff Marl, located immediately under the Utley Limestone. This marl layer, approximately 70 feet thick, is a near-impermeable layer that effectively confines the Tertiary and Cretaceous aquifers, the two confined aquifers beneath the Plant site.

The occurrence of groundwater underly1ng the landfill appears in confined, semi-confined, unconfined, and perched hydrogeologic units. Groundwater is found primarily in sands, silty sands, clayey sands and mad limestone interfaces. The main difference between boring/well water production characteristics and aquifer confining characteristics appears to be the thickness of the water-producing zone, the grain size of the sand component, the sandiclay ratio and the characteristics of the marl/limestone interface.

Groundwater may also exist in an unconfined water table aquifer in the Barnwell sands and limestone that overlie the marl. The water table aquifer at the site is on an interfluvial ridge, or a topographically high area in which the groundwater in the water table discharges along streams that surround the topographic high. The streams eventually discharge to the Savannah River.

3.2 GrollndtJJater Elevations and Gradients During well installation, the occurrence of groundwater was determined by collecting continuous split spoon samples beginning approximately five feet above the location of expected groundwater-producing zones. At both landfill, groundwater was generally found in water producing zones less than one foot thick and was observed to be under semi-confined or confined conditions.

Upon completion of all drilling activities, measuring points were located on the tops of the well casings and surveyed relative to mean sea level (msl). During each sampling event, depth to water measurements were recorded in the wells from the surveyed elevations using an electronic water-level indicator. The water level measurements were then subtracted from the appropriate measuring point elevations to determjne groundwater elevations in the wells.

Hydraulic conductivity (K) in the wells was measured on September 26, 2001. The values ranged from 5.634 x 10 4 cm/sec in GWB-6 to 3.064 x 10-2 cm/sec in GWA-2.

Depth to water measurements and groundwater elevations for the wells at Landfill #3 are presented in Table 1. Groundwater elevations measured to date indicate that the groundwater elevation, or hydraulic 'head,' is greatest beneath the center area of the landfill, and decreases to the southeast, to 2

the northeast and to the west-southwest beneath the landfill. This mouncling effect is believed to be the result of natural infJltration in the sandy soils within the historic topographically high area in the center of the landfill. This topographically high area, which encompasses a broad area within the landfill, is a natural site feature that was present prior to any landfilling operations. Figure 1 shows the topography of the landfill.

As cliscussed previously, the water-bearing stratigraphy beneath Landfill #3 is composed of individual saturated sand units within a clayey/marl matrix. These units mayor may not be interconnected. As such, groundwater elevations in the monitoring wells may reflect head in multiple perched layers and may not represent groundwater 'flow' clirection beneath the landfill. Figure 2 presents a map depicting the saturated head contours measured on December 4, 2006.

Monitoring well GWA-15 is the well most representative of background water quality at the site because of the distance between the well and the current landfilled area, and the location of the area of relatively higher head located between the well and the current landfilled area on the eastern portion of the site. This well is therefore used as a background well to evaluate groundwater quality at the landfill. Well GWA-7 is now evaluated as a downgradient well based on review of the groundwater elevation and chemical analysis data collected since 2002.

The hydraulic graclient was calculated using a three-point problem from groundwater elevations in the monitoring wells as follows for each main clirection of head clifference:

Southwest: GWB-6, GWA-7 and GWA-15; Northeast: GWB-16, GWB-6 and GWC-5; and Southeast: GWC-13, GWA-7 and GWC-14.

The calculated hydraulic graclients are presented on the contour map (Figure 1). The calculations used in determining the graclients are provided in AppendixA. For the December 2006 event, the southwest gradient was 0.011, the northeast graclient was 0.15, and the southeast gradient was 0.12.

The southwest graclient has typically been 0.01, with a maximum of 0.02 aune 2003), reflecting the consistently flattest gradient across the landfill. The northeast trending graclient has ranged from a minimum of 0.08 (October and December 2002,]une 2004) to a maximum of 0.17 aune 2003). The southeast gradient has ranged from a low of 0.06 (December 2002) to a maximum of 0.16 aune 2003). For this monitoring event, the steepest graclient was observed in the northeast flow component.

4 - Sampling Procedures and Parameter Analyses 4.1 Procedures and Field Measurements Prior to sample collection during each sampling event, depth to water measurements are recorded in each well from the surveyed elevations using an electronic water level inclicator. The water level inclicator is decontaminated using a potable water and Alconox wash and a clistilled water rinse between use at each well. The water level measurements are then subtracted from the appropriate measuring point elevations to determine the groundwater elevations in the wells.

Groundwater samples were collected from all monitoring wells after the wells were properly purged accorcling to the EPA document entitled "Low-Flow Purging & Sampling of Groundwater Monitoring Wells (Bulletin QAD023)". The wells were purged and sampled using QED SampJePro pumps equipped with Teflon bladders. Purge rates were matched to the recovery rates of the wells, verified by perioclic depth to water measurements to determine draw-down during purging. Purging was conducted until at least three consecutive stable readings of pH, conductivity, and turbiclity were 3

recorded. Groundwater samples were then collected clirectly into pre-preserved sample containers supplied by the laboratory. Pinal measurements of pH, conductivity, and turbiclity were performed to verify that these parameters remained stable during sampling. All field instruments were calibrated in the field daily prior to use and at the conclusion of each sampling event. The field measurements are provided in Table 2.

After each sample was collected, the SamplePro pumps and airlines were decontaminated according to the following protocol:

The pump and air line were placed on clean plastic; The pump was clisassembled and the bladder was removed; The pump was sprayed with a potable water and Alconox solution, followed with a clistilled water rinse until all soap residue was removed; A new pump bladder was then installed in the pump prior to reassembly; and The pump airline was placed in a clean plastic bag between use at each well.

4.2 ParameterAnalyses In accordance with the approved Groundwater Monitoring Plan, the groundwater samples and field and laboratory quality assurance/quality control (QA/QC) samples were analyzed for the Chapter 391-3-4 Appendi'{ I list of parameters, which consists of total metals and volatile organic compounds (Table 5). The field QA/QC samples consisted of duplicate samples, trip blanks and equipment blanks. Metals analyses were conducted using EPA Methods 6010B/7841, and VOCs analyses were conducted using EPA Methods 6010B/8260B and 504.1 to provide sufficiently sensitive quantitation limits for comparison with maximum contaminant limits. Advanced Chemistry Labs, Inc., Atlanta, Georgia performed the laboratory analyses. The complete laboratory analytical reports, which include field and laboratory QA/QC results and chain-of-custody forms, are provided in Appendix B.

Samples were also collected for the Chapter 391-3-4 Appendix II parameter mercury in all wells due to this parameter's detection in previous assessment monitoring conducted at the landfill.

5 - Groundwater Quality Evaluation 5.1 Detected Parameters Table 4 presents a summary of all analyzed parameters detected above the laboratory method reporting limits. Barium was detected at concentrations below the MCL in well GWC-5 (0.021 mg/l) and in well GWC-13 (0.059 mg/l). Nickel was detected in well GWA-15 (0.089 mg/l); there is no MCL for nickel.

Zinc was detected in well GWC-5 at 0.062 mg/I, in well GWB-6 at 0.028 mg/I, in well GWC-13 at 0.055 mg/I and in well GWA-15 at 0.316 mg/l; there is no MeL for zinc. In the compliance well GWA-7 the VOC trichlorofluoromethane was detected at 152 ug/l, and at 159 ug/I in the replicate sample well GWA-7; there is no MCL for trichlorofluoromethane. In the compliance well GWC-13, 1,I-dichloroethane, cis-l,2-dichloroethene, and trichlorofluoromethane were detected at low levels. All VOC concentrations in GWC-13 were below applicable MCLs. The Appendix iF parameter mercury was detected below the MCL in well GWA-7 at 0.0008 mg/! and in the replicate sample well GWA-7 at 0.0016 mg/I.

No parameters were detected in any of the field or laboratory QA/QC samples, and the laboratory QA/QC checks were within acceptable limits.

5.2 StatisticalAnalYses 4

In accordance with the approved Groundwater Monitoring Plan, statistical analyses were conducted for each constituent detected in the compliance well samples for this sampling event. The analyses were conducted to help identify any significant increase in constituent concentrations in downgradient, or compliance, well samples over samples representative of background water quality.

The analyses were conducted consistent with U.S. EPA recommended methods as detailed in the guidance document "Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities -

Interim Final Guidelines" (1989) and the corresponcling Addendum (1992).

The following methodology was used to evaluate the data:

The clistribution of the data was first evaluated for normality using either the Shapiro-Wilkes Test (for parameters with less than 50 samples) or the Shapiro-Francia Test (for parameters with greater than 50 samples) as recommended in the 1992 EPA guidance. The tests inclicate that the concentrations of all detected parameters do not follow normal distributions.

For the well data sets, the Kruskal-Wallis non-parametric analysis of variance method was used to compare the concentrations of inclividual parameters in each compliance well to the concentrations of these parameters in the background well. This method is recommended by the 1992 EPA guidance for non-normal sample sets that have between 15% and 90% non-detects.

The detailed statistical analyses are provided in Appendix C and the results are summarized below.

At Landfill #3, statistical analysis was performed for the seven detected parameters barium, nickel, zinc, mercury, 1,1-dichloroethane, cis-1,2-dichloroethene, and trichlorofluoromethane. Compared to background well GWA-15/MW-15, the analyses inclicate statistically significant higher concentrations of the following parameters:

Barium, 1,1-clichloroethane, cis-1,2-clichloroethene and trichlorofluoromethane in the GWC-13 well samples, Barium, 1,1-clichloroethane, and cis-l,2-clichloroethene in the GWC-14 well samples, and Trichloroflouromethane in the GWA-7/MW-7 well samples.

It should be noted that the statistical analyses data sets include all sampling events to date for all wells. As a result, statistically higher concentrations of detected parameters in a well are determined based on all reported concentrations (inclucling consideration of non-detects) from all sampling events for that well. If a concentration is lower in the current event for a well, the complete data set for the well may still inclicate a statistically higher concentration over the background well data set considering all sampling events to date. For example, although there was no sample available for GWC-14 for this event, the statistical analyses inclicate significantly higher concentrations of barium, 1,1-clichloroethane, and cis-1,2-clichloroethene for the GWC-14 historical sample data set.

6 - Conclusions Since a statistically significant increase over background is inclicated for several analyzed parameters in wells GWC-13 and GWC-14 at Landfill #3, SNC will place a notice in the operating record within 14 days of submittal of this report as required by Chapter 391-3-4. The notice will inclicate which constituents have shown statistically significant higher concentrations compared to the background wells.

5

Based on prior detections of the Appendix II parameter mercury in Landfill #3 wells, SNC will continue to perform analysis for mercury in all Landfill #3 wells during the regular semi-annual sampling events.

6

TABLES

Table 1 Southern Nuclear Operating Company Plant Vogtle Landfill #3 Groundwater Elevations and Monitoring Well Construction Details Total Boring Total Well Riser Groundwater Measuring Point Elevation Ground Surface Elevation Depth to Water Depth Depth Height Screened Interval Elevation WelllD Date (feet, msl)

(feet, msl)

(feet, topvc)

(feet, bls)

(feet, topvc)

(feet)

(feet, msl)

GWC-5/MW-5 I

9/26/2001 251.96 249.11 48.65 67 56.85 2.85 195.11 to 205.11 203.31 7/29/2002 50.21 201.75 9/9/2002 50.43 201.53 10/21/2002 49.26 202.70 I 12/3/2002 49.26 202.70 6/24/2003 44.60 207.36 12/16/2003 47.55 204.41 6/1512004 47.76 204.20 12128/2004 49.13 202.83 6/13/2005 45.94 206.02 12/5/2005 48.05 203.91 6/5/2006 47.85 204.11 12/4/2006 49.85 202.11 GWB-6/MW-6 9/26/2001 278.87 276.45 47.47 67 64.42 2.42 214.45 to 224.45 231.40 7/29/2002 48.52 230.35 9/9/2002 48.55 230.32 10/21/2002 49.21 229.66 12/3/2002 48.86 230.01 6/24/2003 46.92 231.95 12/16/2003 46.30 232.57 6/15/2004 46.49 232.38 12/28/2004 47.22 231.65 6/13/2005 47.84 231.03 1215/2005 47.20 231.67 6/5/2006 47.38 231.49 12/4/2006 47.69 231.18 GWA-7/MW-7 I 9/26/2001 26133 259.39 31.11 50 41.94 1.94 219.39 to 229.39 230.22 7/29/2002 33.16 228.17 9/9/2002 33.25 228.08 10/21/2002 33.20 228.13 12/3/2002 32.94 228.39 6/24/2003 27.51 233.82 12/16/2003 30.59 230.74 6/15/2004 30.87 230.46 12128/2004 32.33 229.00 6/13/2005 30.64 230.69 12/5/2005 31.60 229.73 6/5/2006 31.74 229.59 12/4/2006 32.84 228.49 Page 1 of 3

Table 1 Southern Nuclear Operating Company Plant Vogtle Landfill #3 Groundwater Elevations and Monitoring Well Construction Details Total Boring Total Well Riser Groundwater Measuring Point Elevation Ground Surface Elevation Depth to Water Depth Depth Height Screened Interval Elevation WelllD Date (feet, msl)

(feet, msl)

(feet, topvc)

(feet, bls)

(feet, topvc)

(feet)

(feet, msl)

GWC-13/MW-13 7/29/2002 273.08 270.99 40.92 50 50.09 2.09 222.99 to 232.99 232.16 9/9/2002 41.00 232.08 10/21/2002 40.94 232.14 12/3/2002 40.48 232.60 6/24/2003 36.90 236.18 12/16/2003 39.17 233.91 6/15/2004 39.59 233.49 12/28/2004 40.59 232.49 6/1312005 38.76 234.32 12/5/2005 39.93 233.15 6/5/2006 39.97 233.11 12/4/2006 40.93 232.15 GWC-14/MW-14 7/29/2002 262.88 260.66 40.05 55 53.22 2.22 209.66 to 219.66 222.83 9/9/2002 42.31 220.57 10/21/2002 42.79 220.09 12/3/2002 42.35 220.53 6/24/2003 44.29 218.59 12/16/2003 51.52 211.36 6/15/2004 52.11 210.77 12128/2004 52.66 210.22 6/13/2005 51.66 211.22 12/5/2005 52.56 210.32 6/5/2006 53.03 209.85 12/4/2006 52.91 209.97 GWA-15/MW-15 7/29/2002 268.15 265.34 45.94 55 55.81 2.81 212.34 to 222.34 222.21 9/9/2002 46.05 222.10 10/21/2002 46.19 221.96 12/3/2002 46.23 221.92 6/24/2003 41.76 226.39 12/16/2003 43.29 224.86 6/15/2004 43.24 224.91 12128/2004 44.68 223.47 6/13/2005 40.1 228.05 12/5/2005 47.39 220.76 6/5/2006 44.32 223.83 12/4/2006 45.03 223.12 Page 2 of 3

Table 1 Southern Nuclear Operating Company Plant VogUe Landfill #3 Groundwater Elevations and Monitoring Well Construction Details Total Boring Total Well Riser Groundwater Measuring Point Elevation Ground Surface Elevation Depth to Water Depth Depth Height Screened Interval Elevation WelllD Date (feet, msl)

(feet, msl)

(feet, topvc)

(feet, bls)

(feet, topvc)

(feet)

(feet, msl)

GWB-16/MW-16 7/29/2002 256.95 254.57 DRY 65 55.38 2.38 201.57 to 211.57 DRY 9/9/2002 DRY DRY 10/21/2002 DRY DRY 12/3/2002 DRY DRY 6124/2003 DRY DRY 12116/2003 DRY DRY 6/15/2004 DRY DRY 12/28/2004 DRY DRY 611312005 DRY DRY 12/5/2005 DRY DRY 61512006 DRY DRY 1214/2006 Abandoned Abandoned GWB-16/MW-16R 12/4/2006 237.59 235.51 77.45 80.80 80.80 3.00 156.79 to 166.79 160.14 GWC-17/MW-17 I

6/1312005 222.64 220.28 72.82 85 82.00 3.00 141.28to 151.28 149.82 12/5/2005 72.6 150.04 6/5/2006 72.61 150.03 12/4/2006 72.65 149.99 GWC-18/MW-18 6/13/2005 227.54 225.03 77.05 80 79.00 3.00 149.03 to 159.03 150.49 12/5/2005 DRY DRY 61512006 DRY DRY 1214/2006 DRY DRY Notes:

Ground surface measured at survey bolt set in concrete pad at base of protective casing.

msl =mean sea level; topvc =measured from top of pvc riser; bls =below land surface Page 3 of 3

Table 2 Southern Nuclear Operating Company Plant Vogtle Landfill #3 Groundwater Sampling Field Measurements Gallons Well 10 Date pH Conductivityl1 Turbidity'2 Purged Odor Color Comments GWC-5/MW-5 9/2612001 5.11 47.5 28.6 6.0 none cloudy Well development only 7/29/2002 5.41 24.4 2.83 1.75 none none 9/912002 8.13 365 4.11 2.0 none none 10/21/2002 12/312002 5.94 117 7.8 2.0 none none 6/24/2003 5.18 29 3.5 6.0 none none 12116/2003 6.27 210 79.7 3.0 none cloudy Split with GAEPD 6/16/2004 5.94 40.7 16.5 2.0 none none 12128/2004 4.96 30 7.33 2.3 none none 6/13/2005 5.86 580 6.2 3.5 none none 12/6/2005 5.48 548 6.03 2.5 none none 6/512006 6.38 550 2.23 1.5 none none 12/4/2006 4.50 396 8.6 2.5 none none GWB-6/MW-6 9/2612001 7.13 242 25.6 2.0 none Well development only 7/29/2002 6.75 1,338 0.35 1.5 none none 9/9/2002 4.13 198 6.43 1.5 none none 10/21/2002 6.72 573 0.44 2.5 none none 12/312002 6.14 116 0.45 1.5 none none 6/24/2003 7.09 155 9.1 1.5 none none 12/1712003 6.82 126 2.27 1.5 none none 6/16/2004 6.77 178.5 1.25 2.75 none none 12/28/2004 7.05 130 2.84 2.25 none none 6/1312005 6.88 125 2.67 2.50 none none 12/5/2005 7.10 122 2.22 2.00 none none 6/512006 7.20 120 2.41 1.00 none none 12/5/2006 6.45 100 1.00 1.00 none none 10f4

Table 2 Southern Nuclear Operating Company Plant Vogtle Landfill #3 Groundwater Sampling Field Measurements Gallons WelllD Date pH Conductivity'1 Turbidity'2 Purged Odor Color Comments GWA-7/MW-7 9/26/2001 cloudy 30.0 Well development only 7/29/2002 6.97 251 8.33 2.5 none none 9/9/2002 7.52 327 9.97 5.0 none none 10/21/2002 4.39 92 3.14 2.0 none none 12/3/2002 6.51 188 7.3 2.5 none none 6/24/2003 7.02 163 101.3 4.0 none dark brown Turbidity>100 nlu for 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 12/16/2003 5.73 62.7 100 4.0 none mod. brown Turbidity 85-100 ntu for 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 6/15/2004 5.94 68.9 42.7 2.0 none none 12/28/2004 8.16 109 9.86 3.5 none none 6/14/2005 7.25 275 8.56 3.0 none none 12/6/2005 5.37 92 96 8.5 none mod. brown Turbidity>100 nlu for 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 6/5/2006 5.12 151 20 5.0 none none 12/4/2006 6.33 180 2.18 2.0 none none GWC-13/MW-13 7/29/2002 6.52 421 0.66 9/9/2002 5.96 77.5 6.40 1.0 none none 10/21/2002 6.19 73.4 3.09 2.5 none none 12/3/2002 6.54 481 1.00 2.5 none none 6/24/2003 5.95 271 2.02 2.5 none none 12/16/2003 5.65 294 0.75 6.0 none none Split with GAEPD 6/16/2004 5.84 366 4.70 1.75 none none 12/28/2004 6.09 268 0.38 1.75 none none 6/13/2005 5.75 255 2.00 1.50 none none 12/6/2005 4.03 4.24 1.07 2.50 none none 6/5/2006 7.17 250 1.11 1.00 none none 12/5/2006 6.35 91 0.79 1.00 none none 2of4

Table 2 Southern Nuclear Operating Company Plant Vogtle Landfill #3 Groundwater Sampling Field Measurements Gallons Well ID Date pH Conductivity" Turbidity'2 Purged Odor Color Comments GWC-14/MW-14 7/29/2002 6.49 448 1.15 none none 9/912002 5.57 717 5.19 none none 10/21/2002 6.00 674 4.65 3.2 none none 12/312002 5.54 547 2.7 4.5 none none 6/24/2003 5.97 197 3.61 2.5 none none 12/17/2003 Split with GAEPD-VOCs & metals 6/15/2004 Well Dry 12128/2004 Too little water to purge and sample 6/14/2005 Too little water to purge and sample 12/6/2005 Too little water to purge and sample 61612006 Too little water to purge and sample 1215/2006 Too little water to purge and sample GWA-15/MW-15 7/29/2002 5.70 95.8 1.12 4.0 none none 9/912002 5.92 118 8.53 2.5 none none 10/21/2002 5.19 81 1.88 4.5 none none 12/312002 7.58 78.2 3.6 2.5 none none 6/24/2003 7.44 48.0 5.38 2.5 none none 12117/2003 6.93 39.4 4.55 6.5 none none Split with GAEPD 6/15/2004 6.47 55.7 5.59 2.25 none none 12/28/2004 6.83 50.0 8.85 3.00 none none 6/1412005 7.85 72.0 7.75 4.00 none none 12/5/2005 6.88 56.0 2.3 2.50 none none 6/512006 7.15 55.0 1.6 2.00 none none 12/4/2006 4.86 50.0 8.8 1.00 none none 30f4

Table 2 Southern Nuclear Operating Company Plant Vogtle Landfill #3 Groundwater Sampling Field Measurements Gallons WelllD Date pH Conductivityl1 Turbidit}/2 Purged Odor Color Comments GWB-16/MW-16 7/29/2002 Well Dry 9/912002 Well Dry 10121/2002 Well Dry 12/3/2002 Well Dry 6/24/2003 Well Dry 12/16/2003 Well Dry 6/15/2004 Well Dry 12/28/2004 Well Dry 6115/2005 Well Dry 12/6/2005 Well Dry 6/5/2006 Well Dry Well Abandon on 10-4-2006 GWB-16/MW-16R 10/5/2006 6.54 56 4.81 2.5 none none Well Development 12/5/2006 7.36 80 5.4 1

none none GWB-17/MW-17 6/15/2005 5.84 77.58 5.29 3.5 none none 1216/2005 6.33 68 10 3

none none 6/5/2006 6.56 80 10 1.5 none none 12/5/2006 5.41 80 8.7 1.5 none none GWB-18/MW-18 6/15/2005 6.67 85.6 8.2 4.2 none none 12/6/2005 Well Dry 615/2006 Well Dry 1215/2006 Well Dry Notes:

- =no data recorded;

/1 - Conductivity in units of umhos/sec

/2 - Turbidity in units of NTU 4 of 4

Table 3 Southern Nuclear Operating Company Plant Vogtle Landfill #3 Appendix I to Part 40 CFR Part 258: Constituents for Detection Monitoring (1)

Common Name (2)

Inorganic Constituents:

(1)

Antimony (2)

Arsenic (3)

Barium (4)

Beryllium (5)

Cadmium (6)

Chromium (7)

Cobalt (8)

Copper (9)

Lead (10)

Nickel (11)

Selenium (12 )

Si 1ve r (13)

Thallium (14)

Vanadium (15)

Zinc Organic Constituents:

(16)

Acetone (17) Acrylonitrile (18)

Benzene (19)

Bromochloromethane (20)

Bromodichloromethane (21)

Bromoform; Tribromomethane (22)

Carbon disulfide (23)

Carbon tetrachloride (24)

Chlorobenzene (25)

Chloroethane; Ethyl chloride (26)

Chloroform; Trichloromethane (27)

Dibromochloromethane; Chlorodibromomethane (28) 1,2-Dibromo-3-chloropropane; DBCP (29) 1,2-Dibromoethane; Ethylene dibromide; EDB (30) o-Dichlorobenzene; 1,2-Dichlorobenzene (31) p-Dichlorobenzene; 1,4-0ichlorobenzene (32) trans-1,4-Dichloro-2-butene (33) 1,1-Dichloroethane; Ethylidene chloride (34) 1,2-Dichloroethane; Ethylene dichloride (35) 1,1-Dichloroethylene; 1,1-Dichloroethene; Vinylidene chloride (36) cis-1,2-Dichloroethylene; cis-1,2-Dichloroethene (37) trans-1,2-Dichloroethylene; trans-1,2-Dichloroethene (38) 1,2-Dichloropropane; Propylene dichloride (39) cis-1,3-Dichloropropene (40) trans-1,3-Dichloropropene (41)

Ethylbenzene (42) 2-Hexanone; Methyl butyl ketone (43)

Methyl bromide; Bromomethane (44)

Methyl chloride; Chloromethane Page 1 of 2 EPA Method 60108/7041 60108/7061 60108/7091 6010B/7091 6010B/7131 6010B/7191 6010B/7201 6010B/7211 6010B/7421 60108/7520 6010B/7741 6010B/7761 6010B/7841 6010B/7911 60108/7951 8260

Table 3 (continued)

Southern Nuclear Operating Company, Inc.

Plant Vogde Landfill #3 Appendix I to Part 40 CFR Part 258: Constituents for Detection Monitoring (1)

Common Name (2)

(45)

Methylene bromide; Dibromomethane (46)

Methylene chloride; Dichloromethane (47)

Methyl ethyl ketone; MEK; 2-Butanone (48)

Methyl iodide; Iodomethane (49) 4-Methyl-2-pentanone; Methyl isobutyl ketone (50)

Styrene (51) 1,1,1, 2-Tetrachloroethane (52) 1,1,2,2-Tetrachloroethane (53)

Tetrachloroethylene; Tetrachloroethene; Perchloroethylene (54)

Toluene (55) 1,1,1-Trichloroethane; Methylchloroform (56) 1,1,2-Trichloroethane (57)

Trichloroethylene; Trichloroethene (58)

Trichlorofluoromethane; CFC-11 (59) 1, 2, 3-Trichloropropane (60)

Vinyl acetate (61)

Vinyl chloride (62)

Xylenes EPA Method 8260 (1)

This list contains 47 volatile organics for which possible analytical procedures provided in EPA Report SW-846 "Test Methods for Evaluating Solid Waste, "

third edition, November 1986, as revised December 1987,includes Method 8260; and 15 metals for which SW-846 provides either Method 6010 or a method from the 7000 series of methods.

(2)

Common names are those widely used in government regulations, scientific publications, and commerce; synonyms exist for many chemicals.

Page 2 of 2

Table 4 Southern Nuclear Operating Company Plant VogUe Landflllll3 Summary of Detected Parameters December 2006 CONSTITUENT MCl WEll SAMPLES GWC-5IMW-5 GWB-6IMW-6 GWA*7/MW-7 GWA-7IMW-73 GWC-,3IMW-'3 GWC*14lMW-14 GWA-15/MW*15 GWB-16/MW-16R GWC-17/MW*17 GWC-18IMW-18 Melals' Barium 2.00 0.021 BOl BOl BOl 0.059 NS BOl BOl BOl NS Nickel NA BOl BOl BOl BOl BOl NS 0.089 BOl BOl NS Zinc NA 0.062 0.028 BOl BOl 0.055 NS 0.316 BOl BOl NS Mercury*

0.002 BOl BOl 0.0008 0.0016 BOl NS BOl BOl BOl NS Organics2 1,1-Dichloroethane NA BOl BOl BOl BOl 20 NS BOl BOl BOl NS Chlorobenzene 100 BOl BOl BOl BOl BOl NS BOl BOl BOL NS cis-l.2-0ichloroethene 70 BOl BOl BOl BOl 10 NS BOl BOl BOl NS Trichlorol1uoromelhane NA BOl BOl 152 159 104 NS BOl BOl BOl NS Vinyl chloride BOl BOl BOl BOl BOl NS BOl BOl BOl NS Benzene BOl BOl BOl BOl BOl NS BOl BOl BOl NS Trichloroethene BOl BOl BOl BOl BOl NS BOl BOl BOl NS BOL - Below quantification level; J. Estimated Value MeL - Maximum Contamlnanllevel per EPO Rule Chapler 391-3-5; NA - None available NS - Nat sampled; well dry or insufficient recovery to sample well lMetals concentrations in mgJl 20rganiC5 concentration units in ug/l or ppb 3Replicale sample of well GWC*7/MW-7 sample

AppendiJl: 11 parameter; NA renects Ihallhis parameter was nol analyzed for those wells not included in the Assessment Monitoring Program Bold indIcates detected concentration ~ greater than the MeL.

Page 1 of 12

Table 4 (Continued)

Southern Nuclear Operating Company Plant Vogtle Landflll #3 Summary of Detected Parameters June 2006 CONSTITUENT MCL WELL SAMPLES GWC-5/MW-5 GWS-6/MW-6 GWA-7/MW-7 GWA-7/MW-7' GWC-131MW-13 GWC-14/MW-14 GWA-15/MW-15 GWC-17/MW-17 GWC-18/MW-18 Melals' Barium 2.00 0.031 SaL saL saL 0.051 NS saL saL NS Zinc NA 0.100 0.083 0.484 0.266 0.213 NS 0.063 0.077 NS Organics2 1,1-Dichloroethane NA SaL saL saL saL 15 NS saL saL NS Chlorobenzene 100 saL saL saL SOL saL NS SOL saL NS cis-1,2-0ichloroelhene 70 saL saL saL SOL NS SOL saL NS Trichlorofluoromelhane NA SOL saL 66 94 92 NS sal saL NS Vinyl chloride Sal sal saL sal sal NS sal saL NS Napthalene' NA NA NA Sal NA NS NA NA NA Benzene 5

SaL SOL BaL Sal SOL NS Sal saL NS Trichloroethene sal SOL Bal Sal SOL NS Sal Sal NS Bal - Below quantification level; J - Estimated Value MeL - Maximum Contaminant Level per EPD Rule Chapter 391-3--5: NA - None available NS - Not sampled; well dry or insufficient recovery to sample well

'Metals concentrations in mg/L 20rganics concentration units in ugli or ppb 3Replicate sample of well GWC-71MW~7 sample

':Appendbc II parameter; NA reflects that this parameter was nol analyzed for those wells not included in the Assessment Monitoring Program Bold indicates delec1ed concentration is greater than the Mel.

Page 2 of 12

Table 4 (Continued)

Southern Nuclear Operating Company Plant Vogtle Landfill #3 Summary of Detected Parameters December 2005 CONSTITUENT MCl WEll SAMPLES GWC-51MW-5 GWB-6IMW-6 GWA-7/MW-7 GWA-7IMW-7' GWC-131MW*13 GWG-14/MW-14 GWA*15/MW-15 GWC-17/MW-17 GWC-18/MW-18 MeLals' Barium 2.00 BOl BOl 0.024 0.022 0.044 NS BOl BOl NS Zinc NA 0.055 0.020 0.068 0.217 0.194 NS 0.042 0.096 NS Organics2 1.1-0ichloroethane NA BOl BOl BOl BOl 18 NS BOl BOl NS Chlorobenzene 100 BOl BOl BOl BOl 4J NS BOl BOl NS cis-1.2-Dichloroelhene 70 BOl BOl BOl BOl NS BOl BOl NS Trichlorofluoromelhane NA BOl BOl 88 85 60 NS BOl BOl NS Vinyl chloride BOl BOl BOl BOl lJ NS BOl BOl NS Napthalene4 NA NA NA BOl NA NS NA NA NA Benzene BOl BOl BOl BOl NS BOl BOl NS Trichloroethene BOl BOl BOl BOl 5

NS BOl BOl NS Sal - Below quantification level; J - Estimated Value Mel - Maximum Contaminant Level per EPO Rule Chapter 391-3-5; NA - None available NS. Not sampled; well dry or insufficient recovery 10 sample well

,Metals concentrations in mglL "organics concentration units in ugJl or ppb JReplicate sample of well GWC-7/MW-7 sample 4Appendix II parameter: NA reflects that this parameter was not analyzed for Ihose wells not included in the Assessment Monitoring Program Bold indicates detecled concentration is greater lhan the MeL Page 3 of 12

Table 4 (Continued)

Southern Nuclear Operating Company Plant Vogtle Landfill #3 Summary of Detected Parameters June 2005 CONSTITUENT MCL WELL SAMPLES GWC-5JMW-5 GWS-llIMW-6 GWA-7IMW-7 GWC-13/MW-13 GWC-131MW-13' GWG-14/MW-14 GWA-15IMW-15 GWC-17IMW-17 GWC-18/MW-18 Metals' Barium 2.00 SOL SOL SOL 0.028 0.031 NS SOL SOL SOL Zinc NA SOL SOL SOL 0.020 SOL NS 0.029 SOL SOL Copper 1.36 SOL SOL SOL SOL SOL NS SOL SOL SOL Mercury4 0.002 SOL SOL SOL SOL SOL NS SOL SOL SOL Chromium (tolal) 0.1 SOL SOL SOL SOL SOL NS SOL SOL SOL Beryllium 0.004 SOL SOL SOL SOL SOL NS SOL SOL SOL Cadmium 0.005 SOL SOL SOL SOL SOL NS SOL SOL SOL Nickel NA SOL SOL SOL SOL SOL NS SOL SOL SOL Lead 0.015' SOL SOL SOL SOL SOL NS SOL SOL SOL Vanadium NA SOL SOL SOL SOL SOL NS SOL SOL SOL Organics2 1,1-Dichloroethane NA SOL SOL SOL 15 15 NS SOL SOL SOL Carbon disulfide NA SOL SOL SOL SOL SOL NS SOL 32 SOL Chlorobenzene 100 SOL SOL SOL SOL SOL NS SOL SOL SOL 1,4-Dicholorbenzene 75 SOL SOL SOL SOL SOL NS SOL SOL SOL Methylene chloride SOL SOL SOL SOL SOL NS SOL SOL SOL cis-1,2-Dichloroethene 70 SOL BQL SOL NS SOL SOL SOL TrichlorofJuorornethane NA SOL SOL 22 46 45 NS SOL SOL SOL 1,1-Dichloroethene SOL SOL SOL SOL SOL NS SOL SOL SOL Xylenes (Total) 10000 SOL SOL SOL SOL SOL NS SOL SOL SOL Vinyl chloride SOL SOL SOL SOL SOL NS SOL SOL SOL Chloroform3 0.1 SOL SOL SOL SOL SOL NS SOL SOL SOL Trichtoroelhene SOL SOL SOL SOL SOL NS SOL SOL SOL Bal - Below quantification level Mel - Maximum Contaminant Level per EPD Rule Chapter 391-3-5; NA - None available NS - Not sampled; well dry or insufficient recovery to sample well lMetals concentrations in mglL ZOrganics concentration units in ugJl or ppb JApplies only to Community Water Systems serving 10,000 4Appendix II parameter; NA reflects that this parameter was not analyzed for those wells not included in the Assessment Monitoring Program 5Replicate sample of well GWC-13fMW-13 sample 6Action Level Bold indicates detected concentration is greater than the MCL.

Page 4 of 12

Table 4 (Continued)

Southern Nuclear Operating Company Plant Vogtle Landfill #3 Summary of Detected Parameters December 2004 CONSTITUENT MCl WEll SAMPLES GWC-5/MW-5 GWS-6/MW-6 GWA-7/MW-7 GWA-7/MW-75 GWC-13/MW-13 GWC-14/MW-14 GWA-15/MW-15 Metals' Sarium 2.00 Sal Sal Sal Sal 0.043 NS Sal Zinc NA Sal Sal Sal Sal 0.044 NS Sal Copper 1.36 Sal Sal Sal Sal Sal NS Sal Mercury' 0.002 Sal Sal Sal 0.0017 Sal NS 0.0004 Chromium (total) 0.1 Sal Sal Sal Sal Sal NS Sal Seryllium 0.004 Sal Sal Sal Sal Sal NS Sal Cadmium 0.005 Sal Sal Sal Sal Sal NS Sal Nickel NA Sal Sal Sal Sal Sal NS Sal lead 0.0156 Sal Sal Sal Sal Sal NS Sal Vanadium NA Sal Sal Sal Sal Sal NS Sal Organics' 1,1-Dichloroethane NA Sal Sal Sal Sal 16 NS Sal Chlorobenzene 100 Sal Sal Sal Sal Sal NS Sal 1,4-Dicholorbenzene 75 Sal Sal Sal Sal Sal NS Sal Methylene chloride 5

Sal Sal Sal Sal Sal NS Sal cis-1,2-Dichloroethene 70 Sal Sal Sal Sal 8

NS Sal Trichlorofluoromethane NA Sal Sal 146 143 81 NS Sal 1,1-Dichloroethene 7

Sal Sal Sal Sal Sal NS Sal Xylenes (Total) 10000 Sal Sal Sal Sal Sal NS Sal Vinyl chloride 2

Sal Sal Sal Sal Sal NS Sal Chloroform' 0.1 Sal Sal Sal Sal Sal NS Sal Trichloroethene 5

Sal Sal Sal Sal Sal NS Sal Sal - Selow quantification level MCl - Maximum Contaminant level per EPD Rule Chapter 391-3-5; NA - None available NS - Not sampled; well dry or insufficient recovery to sample well

'Metals concentrations in mg/l

'Organics concentration units in ug/l or ppb

'Applies only to Community Water Systems serving 10,000

'Appendix II parameter; NA reflects that this parameter was not analyzed for those wells not included in the Assessment Monitoring Program 5Replicate sample of well GWA-7/MW-7 sample 6Action level Bold indicates detected concentration is greater than the MCL.

Page 5 of 12

Table 4 (Continued)

Southern Nuclear Operating Company Plant Vogtle Landfill #3 Summary of Detected Parameters June 2004 CONSTITUENT MCl WEll SAMPLES GWC-5/MW-5 GWS-6/MW-6 GWA-7/MW-7 GWC-13/MW-13 GWC-13/MW-135 GWC-14/MW-14 GWA-15/MW-15 Metals' Sarium 2.00 0.040 Sal Sal 0.034 0.034 NS Sal Zinc NA Sal Sal Sal Sal Sal NS Sal Copper 1.36 Sal Sal Sal Sal Sal NS Sal Mercury' 0.002 Sal Sal 0.0006 Sal Sal NS Sal Chromium (total) 0.1 Sal Sal Sal Sal Sal NS Sal Seryllium 0.004 Sal Sal Sal Sal Sal NS Sal Cadmium 0.005 Sal Sal Sal Sal Sal NS Sal Nickel NA Sal Sal Sal Sal Sal NS Sal lead 0.0156 Sal Sal Sal Sal Sal NS Sal Vanadium NA Sal Sal Sal Sal Sal NS Sal Organics2 1,1-Dichloroethane NA Sal Sal Sal 17 19 NS Sal Chlorobenzene 100 Sal Sal Sal Sal Sal NS Sal 1,4-Dicholorbenzene 75 Sal Sal Sal Sal Sal NS Sal Methylene chloride 5

Sal Sal Sal Sal Sal NS Sal cis-1,2-Dichloroethene 70 Sal Sal Sal 9

10 NS Sal Trichlorofluoromethane NA Sal Sal 46 121 133 NS Sal 1,1-Dichloroethene 7

Sal Sal Sal Sal Sal NS Sal Xylenes (Total) 10000 Sal Sal Sal Sal Sal NS Sal Vinyl chloride 2

Sal Sal Sal 2

2 NS Sal Chloroform3 0.1 Sal Sal Sal Sal Sal NS Sal Trichloroethene 5

Sal Sal 13 Sal Sal NS Sal Sal - Selow quantification level MCl - Maximum Contaminant level per EPD Rule Chapter 391-3-5; NA - None available NS - Not sampled; well dry or insufficient recovery to sampie well

'Metals concentrations in mg/l 20rganics concentrallon units in ug/I or ppb 3Applies only to Community Water Systems serving 10,000

'Appendix II parameter; NA reflects that this parameter was not analyzed for those wells not included in the Assessment Monitoring Program 5Replicate sample of weill GWC-13/MW-13 sample 6Action level Sold indicates detected concentration is greater than the MCL.

Page 6 of 12

Table 4 (Continued)

Southern Nuclear Operating Company Plant Vogtle Landfill #3 Summary of Detected Parameters December 2003 CONSTITUENT MCl WEll SAMPLES GWC-5/MW-5 GWS-6/MW-6 GWA-7/MW-7 GWC-13/MW-13 GWC-13/MW-135 GWC-14/MW-14 GWA-15/MW-15 Metals' Sarium 2.00 0.142 Sal Sal 0.033 0.032 0.189 Sal Zinc NA 0.032 Sal 0.023 Sal Sal 0.127 Sal Copper 1.36 0.025 Sal Sal Sal Sal 0.026 Sal Mercury' 0.002 Sal Sal Sal Sal Sal 0.01 Sal Chromium (total) 0.1 0.028 Sal Sal Sal Sal 0.091 Sal Seryllium 0.004 Sal Sal sal Sal Sal 0.004 Sal Cadmium 0.005 Sal Sal sal Sal Sal 0.011 Sal Nickel NA Sal sal sal Sal Sal 0.034 Sal lead 0.0156 Sal Sal sal Sal Sal 0.015 Sal Vanadium NA Sal sal sal Sal Sal 0.060 Sal Organics' 1.1-Dichloroethane NA Sal Sal sal 20 21 10 Sal Chlorobenzene 100 sal Sal Sal Sal Sal 19 sal 1,4-Dlcholorbenzene 75 sal Sal Sal sal Sal 33 sal Methylene chloride 5

Sal Sal sal Sal sal sal Sal cis-1,2-Dlchloroethene 70 sal Sal sal 14 14 17 Sal Trichloronuoromethane NA Sal sal 34 102 97 sal Sal 1,1-Dichloroethene 7

sal sal sal Sal Sal Sal Sal Xylenes (Total) 10000 Sal Sal Sal Sal sal 10 Sal Vinyl chloride 2

Sal sal Sal Sal Sal sal Sal Chloroform' 0.1 Sal sal sal Sal sal sal sal sal - Selow quantification level MCl - Maximum Contaminant level per EPD Rule Chapter 391-3-5; NA - None available

'Metals concentrations in mg/l

'Organics concentration units in ug/I or ppb

'Applies only to Community Water Systems serving 10,000

'Appendix II parameter 5Replicate sample of well GWC-13/MW-13 sample eAction level Bold Indicates detected concentration is greater than the MCL.

Page 7 of 12

Table 4 (Continued)

Southern Nuclear Operating Company Plant Vogtle Landfill #3 Summary of Detected Parameters June 2003 CONSTITUENT MCl WEll SAMPLES GWC-5IMW-5 GWS-6/MW-6 GWA-7/MW-7 GWC-13/MW-13 GWC-13/MW-135 GWC-14/MW-14 GWA-15/MW-15 Melals' Sarium 2.00 Sal Sal 0.036 0.029 0.030 0.051 Sal Zinc NA Sal Sal 0.034 Sal Sal Sal Sal Copper 1.3 Sal Sal 0.035 Sal Sal Sal Sal Mercury4 0.002 NS NS NS 0.0005 0.0005 0.0072 Sal Organics2 1,1-Dichloroethane NA Sal Sal Sal 9

9 10 Sal Chlorobenzene 100 Sal Sal Sal Sal Sal 7

Sal 1,4-Dicholorbenzene 75 Sal Sal Sal Sal Sal 16 Sal Methylene chloride 5

Sal Sal Sal Sal Sal Sal Sal cis-1,2-Dichloroethene 70 Sal Sal Sal 6

6 10 Sal Trichlorofluoromethane NA Sal Sal 23 41 47 5

Sal 1,1-Dichloroethene 7

Sal Sal Sal Sal SOL Sal SOL Xylenes (Total) 10000 Sal Sal Sal Sal SOL SOL Sal Vinyl chloride 2

SOL Sal Sal SOL SOL SOL Sal Chloroform' 0.1 Sal Sal SOL SOL SOL Sal SOL Sal - Selow quantification level MCl - Maximum Contaminant level per EPD Rule Chapter 391-3-5; NA - None available

'Metals concentrations in mg/l 20rganics concentration units In ugll or ppb

'Applies only to Community Water Systems serving 10,000 4Appendix II parameter; NS reflects that this parameter was not analyzed for those wells not included in the Assessment Monitoring Program 5Replicate sample of well GWC-13/MW-13 sample Bold indicates detected concentration is greater than the MCL.

Page 8 of 12

Table 4 (Continued)

Southern Nuclear Operating Company Plant Vogtle Landfill #3 Summary of Detected Parameters December 2002 CONSTITUENT Metals' MCl WEll SAMPLES GWC-5/MW-5 GWB-6/MW-6 GWA-7/MW-7 GWC-13/MW-13 GWC-14/MW-14 GWA-15/MW-15 Barium Zinc 2.00 NA 0.018 BOl BOl BOl 0.015 BOl 0082 0.027 0.106 BOl BOl BOl Organics2 1,1-Dichloroethane NA BOl Sal BOl 7

16 Sal Chlorobenzene 100 Sal Sal Sal Sal 10 Sal 1,4-Dicholorbenzene 75 Sal Sal Sal Sal 39 BOl Methylene chloride 5

BOl Sal Sal Sal Sal Sal cis-1.2-Dichloroethene 70 Sal Sal Sal Sal 19 Sal Trichlorofluoromethane NA Sal Sal 210 391 27 Sal 1,1-Dichloroethene 7

Sal Sal Sal 11 24 Sal Xylenes (Total) 10000 Sal Sal Sal Sal 21 Sal Vinyl chloride 2

Sal Sal Sal Sal 4

Sal Chloroform3 0.1 Sal Sal Sal 5

Sal Sal Sal - Selow quantification level MCl - Maximum Contaminant level per EPD Rule Chapter 391-3-5; NA - None available

'Metals concentrations in mg/l 20rganics concentration units in ug/I or ppb 3Applies only to Community Water Systems serving 10,000 Bold indicates detected concentration is greater than the MCl.

Page 9 of 12

CONSTITUENT Table 4 (Continued)

Southern Nuclear Operating Company Plant Vogtle Landfill #3 Summary of Detected Parameters October 2002 MCl WEll SAMPLES GWC-5/MW-5 GWS-6/MW-6 GWA-7/MW-7 GWC-13/MW-13 GWC-14/MW-14 GWA-15/MW-15 GWA-15-2/MW-15-23 Melals' Sarium Sal Sal Sal 0.083 0.064 Sal Zinc Sal Sal Sal 0.027 Sal Sal Organics2 1,1-Dichloroelhane NA Sal Sal Sal 6

17 Sal Chlorobellzene 100 Sal Sal Sal Sal 9

Sal 1,4-Dicholorbenzene 75 Sal Sal Sal Sal 35 Sal Methylene chloride 5

Sal Sal Sal Sal 11 Sal cis-1,2-Dichloroelhene 70 Sal Sal Sal Sal 16 Sal Trichlorofluoromethane NA Sal Sal 221 348 31 Sal 1,1-0ichloroethene 7

Sal Sal Sal Sal Sal Sal Xylenes (Total) 10000 Sal Sal Sal Sal 11 Sal Vinyl chloride 2

Sal Sal Sal Sal Sal Sal Sal - Selow quantification level MCl - Maximum Contaminant level per EPD Rule Chapter 391-3-5; NA - None available

'Metals concentrations in mg/L 20rganics concentration units in ug/l or ppb 3Replicate sample of GWA*15I1MW-15 well Sold indicates detected concentration is greater than the MCL.

Sal Sal Sal Sal Sal Sal Sal Sal Sal Sal Sal Page 10 of 12

CONSTITUENT Metals' MCl Table 4 (Continued)

Southern Nuclear Operating Company Plant Vogtle Landfill #3 Summary of Detected Parameters September 2002 WEll SAMPLES GWC-5/MW-5 GWS-6/MW-6 GWA-7/MW-7 GWC-13/MW-13 GWC-14/MW-14 GWC-14-2/MW-14-23 GWA-15/MW-15 Organics' 1,1-Dichloroethane NA SOL Chlorobenzene 100 SOL 1A-Dichlorobenzene 75 SOL Methylene chloride 5

SOL cis-1,2-Dichloroethene 70 SOL Trichlorofiuoromethane NA SOL 1,1-Dichloroethene 7

SOL Xylenes (Total) 10000 SOL Vinyl chloride 2

SOL Sarium Zinc 2

NA 0,020 SOL SOL SOL 0,085 0,092 0,095 SOL SOL SOL 0,023 SOL SOL SOL SOL SOL 6

21 21 SOL SOL SOL SOL 8

8 SOL SOL SOL SOL 37 36 SOL SOL SOL SOL SOL SOL SOL SOL SOL SOL 19 18 SOL SOL 32 381 47 48 SOL SOL SOL 8

29 28 SOL SOL SOL SOL 23 23 SOL SOL SOL SOL SOL 3

SOL SOL - Selow quantification level MCl - Maximum Contaminant level per Georgia EPD Rule Chapter 391-3-5; NA - None available

'Metals concentraUons in mg/l

'Organics concentration units in ug/I or ppb 3Replicate sample of GWS-14/1MW-14 well sample Bold indicates detected concentration is greater than the MCl, Page 11 of 12

CONSTITUENT Metals' Table 4 (Continued)

Southern Nuclear Operating Company Plant Vogtle Landfill #3 Summary of Detected Parameters July 2002 MCl WEllS' GWC-5/MW-5 GWS-6/MW-6 GWA-7/MW-7 GWA-7-2JMW-7-23 GWC-13/MW-13 GWC-14/MW-14 GWA-15/MW-15 Sarlum Zinc 2

NA Sal Sal Sal Sal Sal Sal SOL Sal 0.077 Sal 0.068 Sal Sal Sal Organics2 1,1-Dichloroethane NA Sal Sal Chlorobenzene 100 Sal Sal 1,4-Dichlorobenzene 75 Sal Sal Methylene chloride 5

9 6

cis-1,2-Dichloroethene 70 Sal Sal Trichlorofluoromethane NA Sal Sal 1,1*-Dichloroethene 7

Sal Sal Xylenes (Total) 10000 Sal Sal Vinyl chloride 2

Sal Sal Sal Sal Sal 8

Sal 177 Sal Sal Sal Sal Sal Sal 7

Sal 192 Sal Sal Sal Sal Sal Sal 8

Sal 300 Sal Sal Sal 13 Sal 20 8

10 43 Sal 8

Sal Sal Sal Sal Sal Sal Sal Sal Sal Sal Sal - Selow quantification level MCl - Maximum Contaminant level per Georgia EPD 'Rule Chapter 391-3-5; NA - None available 1Metals concentrations in mg/l 20rganics concentration units in ugn' or ppb 3Replicate sample of GWA-7/MW-7 well sample Bold indicates detected concentration is greater than the MCL.

Page 12 of 12

FIGURES

ApPENDIX A - HYDRAULIC GRADIENT CALCULATION SHEETS

Plant Vogtle Landfill #3 Gradient Calculation (based on three-point problem)

December 2006 Monitoring Event Well Designation GWC-5/MW-5 GWB-6/MW-6 GWA-7/MW-7 GWC-13/MW-13 GWC-14/MW-14 GWA-15/MW-15 GWB-16/MW-16 GWC-17/MW-17 GWC-18/MW-18 Water Table Elevation 202.11 231.18 228.49 232.15 209.97 223.12 160.14 149.99 DRY Northing 9604.30 9432.48 8826.22 9242.72 8960.64 8975.71 9912.48 8553.09 8938.05 Easting 7999.33 7473.25 7657.89 7995.86 7999.10 6886.73 7948.95 8135.59 8238.63 Gradient Calculation from fitting a plane to three points a x, + b Y, + cz, + d =0 a X2 + b Y2 + CZ2 + d =0 a x3 + b Y3 + CZ3 + d =0 where (Xj,Yi) are the coordinates of the well and zi is the head, i = 1,2,3 The gradient is calculated from the square root of (a2 + b2)

Southwest Gradient Wells of Interest = (GWB-6. GWA-7 & GWA-15)

(High-Mid-Low) x Y

z GWB-6/MW-6 9432.48 7473.25 231.18 GWA-7/MW-7 8826.22 7657.89 228.49 GWA-15/MW-15 8975.71 6886.73 223.12 7473.25 231.18 I-a=

7657.89 228.49

-3065.937 6886.73 223.12 9432.48 231.18 b=

8826.22 228.49

=

3657.7443 8975.71 223.12 9432.48 7473.25 I-c=

8826.22 7657.89 439921.63 8975.71 6886.73 9432.48 7473.25 231.18 d=

8826.22 7657.89 228.49

=

45446453 8975.71 6886.73 223.12 zO =

-103.3057939 mx=

0.00696928 my=

-0.008314536 ISouthwest Gradient -

0.0111 Page 1 of 3

Plant Vogtle Landfill #3 Gradient Calculation (based on three-point problem)

Northeast Gradient Wells of Interest = (GWC-16, GWB-6 & GWC-5)

(High-Mid-Low) x y

z GWB-16/MW-16 9242.72 7995.86 160.14 GWB-6/MW-6 9432.48 7473.25 231.18 GWC-5/MW-5 9604.30 7999.33 202.11 7995.86 160.14 a=

7473.25 231.18

=

-22180.45 7999.33 202.11 9242.72 160.14 b=

9432.48 231.18

=

-17722.42 9604.30 202.11 9242.72 7995.86 c=

9432.48 7473.25

=

189623.79 9604.30 7999.33 9242.72 7995.86 160.14 1=

d=

9432.48 7473.25 231.18

-32935382 9604.30 7999.33 202.11 zO =

173.6880282 mx=

0.116970821 my=

0.093460931 INortheast Gradient -

0. 151 Page 2 of 3

Plant Vogtle Landfill #3 Gradient Calculation (based on three-point problem)

Southeast Gradient Wells of Interest = (GWC-13, GWA-7 & GWC-14)

(High-Mid-Low) x y

z GWC-13/MW-13 9242.72 7995.86 232.15 GWA-7/MW-7 8826.22 7657.89 228.49 GWC-14/MW-14 8960.64 7999.10 209.97 7995.86 232.15 a=

7657.89 228.49

=

7508.033 7999.10 209.97 9242.72 232.15 1=

b=

8826.22 228.49 8205.5572 8960.64 209.97 9242.72 7995.86 1=

c=

8826.22 7657.89

-96684.04 8960.64 7999.10 9242.72 7995.86 232.15 d=

8826.22 7657.89 228.49

=

-18661039 8960.64 7999.10 209.97 zO =

-193.0105487 mx=

0.077655352 my=

0.084869823 ISoutheast Gradient -

0. 121 Page 3 of 3

ApPENDIX B - LABORATORY ANALYTICAL REPORTS DECEMBER 2006

o.

IACLI Phone: (770)409*1444 Fax: (770) 409-1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100

Atlanta. GA 30360 P.O. Box 88610* Atlanta, GA 30356 www.advancedchemistrylabs.com Laboratory Report ACL Project #: 52254 Client Proj #:

Vogtle LF #3 Prepared For:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Attention: Mr. Kurt Batsel Report Date:

12/18/2006 This report contains 42 pageso (including this cover page and chain of custody)

-.f1 "'oec b* s AJ. ~""--(.r _

Markorios Adafre Laboratory Manager Advanced Chemistry Labs is a woman owned smail business concern.

If you have any questfons concerning this report, please do not hesitate to call us at (770) 409-1444.

This report may not be reproduced. except in full, without the written permission of ACL (Advanced Chemistry Labs, Inc).

ACL certifies that the folloWing analytical results meet all the requirements of NELAC.

ACL is accredited by the National Environmental Laboratory Accreditation Program (NELAP).

ACL maintains the following certifications: NELAC (E87212), South Carolina (98009001), North Carolina (362), Florida (E87212), USDA Soil Import License (8-36503).

Page 1 of 42

IACL 1~~

A_D_~_:4_N_C~'E~1J~C~ll.-.:'E~M~I~S~T~'R~Y~L~A~BS~,~IN~c.

Phone: (770) 409-1444 3039 Amwiler Road, Suite 100, Atlanta, GA 30360 Fax: (770) 409-1844 P. O. Box 88610, Atlanta, GA 30356 e-mail: acl@acl-Iabs.net Data Qualifier Codes Code A

B BQl DW E

H J

PQl TIC Description Value reported is the mean of two or more determinations; Indicates the analyte was detected in the sample and method blank; Below practical quantitation limit; Results reported on a dry-weight basis (ex: mg/kg, dw),

Estimated value: (i) sample received or analyzed beyond the accepted holding time; (ii) sample received at improper container or temperature or with inappropriate preservative; (iii) the continuing calibration for an analyte did not meet qc criteria; Estimated value; result higher than the highest calibration standard; Reported value is between the method detection limit and the practical quantitation limit; Practical quantitation limit; Tentatively identified compound; Not analyzed due to interferences; Upon client request, a statement of the test result estimated uncertainty can be provided.

NOTE: Unless otherwise noted, all results are reported on an as received basis.

Page 2 of 42

rACL 1~

AD VAM_C~'E.~V~C~'H~E~'M~TS~T:o:-'R~Y~LA~B""""::S.:,:",,,'

=INC~.

" Phone: (770) 409-1444 3039 Amwiler Road* Suite 100* Atlanta, GA 30360 Fax: (770) 409-1844 P.O. Box 88610* Atlanta, GA 30356 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12/18/2006 v.a. (50308/82608)

Appendix I Sample 10:

GWC-5/MW-5 Matrix:

Water Date Sampled:

12/04/2006 Date Extracted:

Date Analyzed:

12115/2006 ACL Sample #: 250668 Units:

~g/L Analyst:

ME Analvte Result PQL Analvte Result PQL Acetone SOL 100 Styrene SOL 5

Acrylonitrile SOL 50 1,1,1,2-Tetrachloroethane SOL 5

Senzene SOL 5

1,1,2,2-Tetrachloroethane SOL 5

Sromochloromethane SOL 5

Tetrachloroethene SOL 5

Sromodichloromethane SOL 5

Toluene SOL 5

Sromoform SOL 5

1,1,1-Trichloroethane SOL 5

Carbon disulfide SOL 5

1,1,2-Trichloroethane SOL 5

Carbon tetrachloride SOL 5

Trichloroethene Sal 5

Chlorobenzene SOL 5

TrichlorofJuoromethane SOL 5

Chloroethane SOL 10 1,2,3-Trichloropropane Sal 5

Chloroform SOL 5

Vinyl acetate SOL 50 1,2-Dibromo-3-chloropropane SOL 20 Vinyl chloride SOL 2

Dibromochloromethane SOL 5

m &p-Xylenes Sal 10 1,2-Dibromoethane Sal 5

o-Xylene SOL 5

trans-1,4-Dichloro-2-butene SOL 10 1,2-Dichlorobenzene SOL 5

1A-Dichlorobenzene Sal 5

1,1-Dichloroethane Sal 5

1,2-Dichloroethane Sal 5

1,1-Dichloroethene SOL 5

cis-1,2-Dichloroethene SOL 5

trans-1,2-Dichloroethene Sal 5

1,2-Dichloropropane Sal 5

cis-1,3-Dichloropropene SOL 5

trans-1,3-Dichloropropene SOL 5

Ethylbenzene SOL 5

2-Hexanone SOL 50 Methyl bromide SOL 10 Methyl, chloride Sal 10 Methyl ethyl ketone SOL 100 Methyl iodide SOL 5

4-Methyl-2-pentanone Sal 50 Methylene bromide SOL 5

Methylene chloride SOL 5

Page 3 of 42

Phone: (770) 409*1444 Fax: (770) 409*1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100* Atlanta, GA 30360 P.O. Box 88610* Atlanta. GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12118/2006 v.o. (5030B/8260B)

Appendix I Sample 10:

GWB-6/MW-6 Matrix:

Water Date Sampled:

12/05/2006 Date Extracted:

Date Analyzed:

12/15/2006 ACL Sample #: 250669 Units:

~g/L Analyst:

ME Analvte Result PQL Analyte Result PQL Acetone Sal 100 Styrene Sal 5

Acrylonitrile Sal 50 1,1,1,2-Tetrachloroethane SOL 5

Senzene Sal 5

1,1,2,2-Tetrachloroethane SOL 5

Sromochloromethane Sal 5

Tetrachloroethene SOL 5

Sromodichloromethane SOL 5

Toluene SOL 5

Sromoform SOL 5

1,1,1-Trichloroethane Sal 5

Carbon disulfide SOL 5

1,1,2-Trichloroethane Sal 5

Carbon tetrachloride Sal 5

Trichloroethene Sal 5

Chlorobenzene SOL 5

Trichlorofluoromethane SOL 5

Chloroethane SOL 10 1,2,3-Trichloropropane Sal 5

Chloroform Sal 5

Vinyl acetate Sal 50 1,2-Dibromo-3-chloropropane Sal 20 Vinyl chloride Sal 2

Dibromochloromethane Sal 5

m &p-Xylenes Sal 10 1,2-Dibromoethane Sal 5

o-Xylene Sal 5

trans-1,4-Dichloro-2-butene Sal 10 1,2-Dichlorobenzene Sal 5

1A-Dichlorobenzene SOL 5

1,1-Dichloroethane Sal 5

1,2-Dichloroethane Sal 5

1,1-Dichloroethene Sal 5

cis-1,2-Dichloroethene Sal 5

trans-1,2-Dichloroethene Sal 5

1,2-Dichloropropane SOL 5

cis-1,3-Dichloropropene Sal 5

trans-1,3-Dichloropropene SOL 5

Ethylbenzene SOL 5

2-Hexanone Sal 50 Methyl bromide Sal 10 Methyl chloride Sal 10 Methyl ethyl ketone Sal 100 Methyl iodide SOL 5

4-Methyl-2-pentanone SOL 50 Methylene bromide Sal 5

Methylene chloride SOL 5

Page 4 of 42

IACLI

~

Phone: (770) 409-1444 Fax: (770) 409-1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100' Atlanta, GA 30360 P.O. Box 88610' Atlanta, GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client P,roj #:

ACl Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12/18/2006 v.a. (50308/82608) - Appendix I Sample 10:

GWA-7/MW-7 Matrix:

Water Date Sampled:

12104/2006 Date Extracted:

Date Analyzed:

12/15/2006 ACL Sample #: 250670 Units:

~g/L Analyst:

ME Analvte Result PQl AnaIvte Result Pgl Acetone BOl 100 Styrene BOl 5

Acrylonitrile BOl 50 1,1,1,2-Tetrachloroethane Sal 5

Benzene BOL 5

1,1,2,2-Tetrachloroethane BOl 5

Sromochloromethane Sal 5

Tetrachforoethene BOL 5

Bromodichloromethane Sal 5

Toluene Sal 5

Sromoform Sal 5

1,1,1-Trichloroethane Sal 5

Carbon disulfide Sal 5

1,1,2-Trichloroethane BOl 5

Carbon tetrachloride Sal 5

Trichloroethene Sal 5

Chlorobenzene Sal 5

Trichlorofluoromethane 152 5

Chloroethane Sal 10 1,2,3-Trichloropropane Sal 5

Chloroform Sal 5

Vinyl acetate Sal 50 1,2-Dibromo-3-chforopropane BOl 20 Vinyl chloride Sal 2

Dibromochloromethane BOl 5

m & p-Xylenes Sal 10 1,2-Dibromoethane Sal 5

o-Xylene Sal 5

trans-1,4-Dichloro-2-butene Sal 10 1,2-Dichlorobenzene Sal 5

1A-Dichlorobenzene Sal 5

1,1-Dichloroethane Sal 5

1,2-Dichloroethane Sal 5

1,1-Dichforoethene Sal 5

cis-1,2-Dichloroethene Sal 5

trans-1,2-Dichloroethene Sal 5

1,2-Dichloropropane Sal 5

cis-1,3-Dichloropropene Sal 5

trans-1,3-Dichloropropene Sal 5

Ethylbenzene Sal 5

2-Hexanone Sal 50 Methyl bromide Sal 10 Methyl chloride Sal 10 Methyl ethyl ketone Sal 100 Methyl iodide Sal 5

4-Methyl-2-pentanone Sal 50 Methylene bromide Sal 5

Methylene chloride Sal 5

Page 5 of 42

[A CL 1~

AD

__VAN CE~v~c...-..rn~E.~'M-:-lS~T~'R~Y,:""""LA~B~S.=-=-',,,,=,,=IM~C~.

Phone: (770) 409-1444 3039 Amwiler Road* Suite 100

Atlanta, GA 30360 Fax: (770) 409-1844 P.O. Box 88610* Atlanta, GA 30356 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 V.O. (5030B/8260B)

Appendix I Sample 10:

GWA-7/MW-7Dup Matrix:

Water Date Sampled:

12/04/2006 Date Extracted:

Date Analyzed:

12/15/2006 ACL Sample #: 250671 Units:

lJg/L Analyst:

ME Analvte Result POL Analvte Result POL Acetone Sal 100 Styrene Sal 5

Acrylonitrile Sal 50 1,1,1,2-Tetrachloroethane Sal 5

Senzene Sal 5

1,1,2,2-Tetrachloroethane Sal 5

Sromochloromethane Sal 5

Tetrachloroethene Sal 5

Sromodichloromethane Sal 5

Toluene Sal 5

Sromoform Sal 5

1,1,1-Trichloroethane Sal 5

Carbon disulfide Sal 5

1,1,2-Trichloroethane Sal 5

Carbon tetrachloride Sal 5

Trichloroethene Sal 5

Chlorobenzene Sal 5

TrichlorofJuoromethane 159 5

Chloroethane Sal 10 1,2,3-Trichloropropane Sal 5

Chloroform Sal 5

Vinyl acetate SOL 50 1,2-Dibromo-3-chloropropane Sal 20 Vinyl chloride Sal 2

Dibromochloromethane Sal 5

m & p-Xylenes SOL 10 1,2-Dibromoethane Sal 5

o-Xylene SOL 5

trans-1,4-Dichloro-2-butene Sal 10 1,2-Dichlorobenzene Sal 5

1,4-Dichlorobenzene Sal 5

1,1-Dichloroethane Sal 5

1,2-Dichloroethane SOL 5

1,1-Dichloroethene Sal 5

cis-1,2-Dichloroethene Sal 5

trans-1,2-Dichloroethene Sal 5

1,2-Dichloropropane Sal 5

cis-1,3-Dichloropropene Sal 5

lrans-1,3-Dichloropropene Sal 5

Ethylbenzene SOL 5

2-Hexanone Sal 50 Methyl bromide Sal 10 Methyl chloride Sal 10 Methyl ethyl ketone Sal 100 Methyl iodide Sal 5

4-Methyl-2-pentanone Sal 50 Methylene bromide SOL 5

Methylene chloride Sal 5

Page 6 of 42

ADVANCED CHEMISTRYLABS, INC.

lACLI Phone: (770) 4~0~9-~1~444~------""""--------:3~0~3'='9"":'A-m-w":':i1~er~R::-o-a-'d:-."::S:-u~ite~1 O~O:-.-:A~tl~a~nta~.G:::"A:""":3~0:::36~0~

Fax: (770) 409-1844 P.O. Box 88610* Atlanta, GA 30356 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACl Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12/1,8/2006 v.o. (50308/82608) - Appendix I Sample ID:

GWC-13/MW-13 Matrix:

Water Date Sampled:

12/04/2006 Date Extracted:

Date Analyzed:

12/15/2006 ACL Sample #: 250672 Units:

~g/L Analyst:

ME Analyte Result PQL Analvte Result PQL Acetone SOL 100 Styrene Sal 5

Acrylonitrile Sal 50 1,1,1,2-Tetrachloroethane Sal 5

Senzene Sal 5

1,1,2,2-Tetrachloroethane Sal 5

Sromochloromethane Sal 5

Tetrachloroethene Sal 5

Sromodichloromethane Sal 5

Toluene Sal 5

Sromoform Sal 5

1,1',1-Trichloroethane Sal 5

Carbon disulfide Sal 5

1,1,2-Trichloroethane Sal 5

Carbon tetrachloride Sal 5

Trichloroethene Sal 5

Chlorobenzene Sal 5

Trichlorofluoromethane 104 5

Chloroettlane Sal 10 1,2,3-Trichloropropane Sal 5

Chloroform Sal 5

Vinyl acetate Sal 50 1,2-Dibromo-3-chloropropane Sal 20 Vinyl chloride Sal 2

Dibromochloromethane Sal 5

m & p-Xylenes Sal 10 1,2-Dibromoethane Sal 5

o-Xylene Sal 5

trans-1,4-Dichloro-2-butene Sal 10 1,2-Dichlorobenzene Sal 5

1A-Dichlorobenzene Sal 5

1,1-Dichloroethane 20 5

1,2-Dichloroethane Sal 5

1,1-Dichloroethene Sal 5

cis-1,2-Dlchloroethene 10 5

trans-1,2-Dichloroethene Sal 5

1,2-Dichloropropane Sal 5

cis-1,3-Dichloropropene Sal 5

trans-1,3-Dichloropropene Sal 5

Ethylbenzene Sal 5

2-Hexanone Sal 50 Methyl bromide Sal 10 Methyl chloride Sal 10

'Methyl ethyl ketone Sal 100 Methyl: iodide Sal 5

4-Methyl-2-pentanone Sal 50 Methylene bromide Sal 5

Methylene chloride BOl 5

Page 7 of 42

IA CL I AD

__VAN CE~V~C-:":,ll~E=--'M~'IS-=-T":":"""'R~Y::-LAB,,:,,,,:,,:,,,,--:'S.:,,,:,,,,-:::-:::INC~.

Phone: (770) 409-1444 3039 Amwller Road* Suite 100* Atlanta, GA 30360 Fax: (770) 409-1844 P.O. Box 88610* Atlanta. GA 30356 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12118/2006 v.a. (50308/82608)

Appendix I Sample ID:

GWA-15/MW-15 Matrix:

Water Date Sampled:

12104/2006 Date Extracted:

Date Analyzed:

12/15/2006 ACL Sample #: 250673 Units:

~g/L Analyst:

ME Analvte Result PQL Analvte Result fQb Acetone Sal 100 Styrene Sal 5

Acrylonitrile Sal 50 1,1,1,2-Tetrachloroethane Sal 5

Senzene Sal 5

1,1,2,2-Tetrachloroethane Sal 5

Sromochloromethane Sal 5

Tetrachloroethene Sal 5

Sromodichloromethane Sal 5

Toluene Sal 5

Sromoform Sal 5

1,1,1-Trichloroethane Sal 5

Carbon disulfide Sal 5

1,1,2-Trichloroethane Sal 5

Carbon tetrachloride Sal 5

Trichloroethene Sal 5

Chlorobenzene Sal 5

Trichlorofluoromethane Sal 5

Chloroethane Sal 10 1,2,3-Trichloropropane Sal 5

Chloroform Sal 5

Vinyl acetate Sal 50 1,2-Dibromo-3-chloropropane Sal 20 Vinyl chloride Sal 2

Dibromochloromethane Sal 5

m & p-Xylenes Sal 10 1,2-Dibromoethane Sal 5

o-Xylene Sal 5

trans-1,4-Dichloro-2-butene Sal 10 1,2-Dichlorobenzene Sal 5

1A-Dichlorobenzene Sal 5

1,1-Dichloroethane Sal 5

1,2-Dichloroethane Sal 5

1,1-Dichloroethene Sal 5

cis-1,2-Dichloroethene Sal 5

trans-1,2-Dichloroethene Sal 5

1,2-Dichloropropane SQl 5

cis-1,3-Dichloropropene Sal 5

trans-1,3-Dichloropropene Sal 5

Ethylbenzene Sal 5

2-Hexanone Sal 50 Methyl bromide Sal 10 Methyl chloride SQl 10 Methyl ethyl ketone SQl 100 Methyl iodide Sal 5

4-Methyl-2-pentanone SQl 50 Methylene bromide SQl 5

Methylene chloride Sal 5

Page 8 of 42

ADVANCED CHEMISTRYLABS, INC.

[ACLI Phone: (770) 4~0~9-~1-44~4~-"""""'-----------~3~0:-=3~9~A-m-w":':i1~er~R=-o-a~d~'':S~u~ite-1~0:::0:-'-::A~tl:-a~nta~.G~A~3::'03::":6::'::0:--

Fax: (770) 409-1844 P.O. Box 88610* Atlanta. GA 30356 e-mail: ac'l@acl-labs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batseli Cilient Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 v.o. (5030B/8260B) - Appendix I Sample 10:

GWB-16/MW-16R Matrix:

Water Date Sampled:

12/05/2006 Date Extracted:

Date Analyzed:

12/15/2006 ACL Sampl'e #: 250674 Units:

IJg/L Analyst:

ME Analvte Result PQL Analvte Result PQL Acetone Sal 100 Styrene Sal 5

Acrylonitrile Sal 50 1,1,1,2-Tetrachloroethane Sal 5

Senzene sal 5

1,1,2,2-Tetrachloroethane Sal 5

Sromochloromethane sal 5

Tetrachloroethene sal 5

Sromodichloromethane sal 5

Toluene Sal 5

Sromoform sal 5

1,1,1-Trichloroethane Sal 5

Carbon disulfide Sal 5

1,1,2-Trichloroethane Sal 5

Carbon tetrachloride Sal 5

Trichloroethene sal 5

Chlorobenzene sal 5

TrichlorofJuoromethane sal 5

Chloroethane sal 10 1,2,3-Trichloropropane sal 5

Chloroform Sal 5

Vinyl acetate Sal 50 1,2-Dibromo-3-chloropropane sal 20 Vinyl chloride Sal 2

Dibromochloromethane sal 5

m & p-Xylenes sal 10 1,2-Dibromoethane sal 5

o-Xylene sal 5

trans-1,4-Dichloro-2-butene sal 10 1,2-Dichlorobenzene sal 5

1A-Dichlorobenzene Sal 5

1,1-Dichloroethane sal 5

1,2-Dichloroethane sal 5

1,1-Dichloroethene sal 5

cis-1,2-Dichloroethene sal 5

trans-1,2-Dichloroethene sal 5

1,2-Dichloropropane sal 5

cis-1,3-Dichloropropene sal 5

trans-1,3-Dichloropropene sal 5

Ethylbenzene sal 5

2-Hexanone sal 50 Methyl bromide Sal 10 Methyl chloride Sal 10 Methyl ethyl ketone Sal 100 Methyl iodide Sal 5

4-Methyl-2-pentanone Sal 50 Methylene bromide Sal 5

Methylene chloride Sal 5

Page 9 of 42

[A CL i AD

__VANi CE~'D~C~'H~E~'M_:_7S_=_T":":"'""'R~y':""""L":"':":'AB__:__:S.:_:_'~IM~C=__.

Phone: (770) 409-1444 3039 Amwiler Road* Suite 100' Atlanta, GA 30360 Fax: (770) 409*1844 P.O. Box 88610' Atlanta, GA 30356 e-mail: acl@acl-labs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACl Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 v.a. (50308/82608)

Appendix I Sample 10:

GWC-17/MW-17 Matrix:

Water Date Sampled:

12/05/2006 Date Extracted:

Date Analyzed:

12/15/2006 ACl Sample #: 250675 Units:

IJg/L Analyst:

ME Analvte Result f.Q.b Analvte Result Pgl Acetone Sal 100 Styrene Sal 5

Acrylonitrile Sal 50 1,1,1,2-Tetrachloroethane Sal 5

Senzene Sal 5

1,1,2,2-Tetrachloroethane Sal 5

Sromochloromethane Sal 5

Tetrachloroethene Sal 5

Sromodichloromethane Sal 5

Toluene BOL 5

Bromoform SOL 5

1,1,1-Trichloroethane SOL 5

Carbon disulfide BOl 5

1,1,2-Trichloroethane Sal 5

Carbon tetrachloride Sal 5

Trichloroethene BOl 5

Chlorobenzene Sal 5

Trichlorofluoromethane SOL 5

Chloroethane BOl 10 1,2,3-Trichloropropane Sal 5

Chloroform SOL 5

Vinyl acetate BOL 50 1,2-Dibromo-3-chloropropane SOL 20 Vinyl chloride SOL 2

Dibromochloromethane Sal 5

m & p-Xylenes BOl 10 1,2-Dibromoethane SOL 5

o-Xylene BOL 5

trans-1 A-Dichloro-2-butene SOL 10 1,2-Dichlorobenzene SOL 5

1A-Dichlorobenzene Sal 5

1,1-Dichloroethane SOL 5

1,2-Dichloroethane SOL 5

1,1-Dichloroethene SOL 5

cis-1,2-Dichloroethene SOL 5

trans-1,2-Dichloroethene SOL 5

1,2-Dichloropropane SOL 5

cis-1,3-Dichloropropene SOL 5

trans-1,3-Dichloropropene SOL 5

Ethylbenzene SOL 5

2-Hexanone Sal 50 Methyl bromide SOL 10 Methyl chloride SOL 10 Methyl ethyl ketone SOL 100 Methyl iodide SOL 5

4-Methyl-2-pentanone SOL 50 Methylene bromide SOL 5

Methylene chloride SOL 5

Page 10 of 42

ADVANCED CHEMISTRYLABS, INC.

IACLI Phone: (770) 4~09~'~144~4:--"""-------"""'----~3~0'!'39~A-m-w~jl-er~R~o-a~d:-'~S-ui~te-1~0:!"!!0~'~A~tl:-an~t-a~,

G=-A="""=3~03~6~0:--

Fax: (770) 409*1844 P.O. Box 88610' Atlanta, GA 30356 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL ProJect #:

Date,Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12/18/2006 v.a. (50308/82608)

Appendix I Sample 10:

EO Blank Matrix:

Water Date Sampled:

12105/2006 Date Extracted:

Date Analyzed:

12/15/2006 ACl Sample #: 250676 Units:

~g/L Analyst:

ME Analvte Result PQL Analvte Result PQL Acetone BOl 100 Styrene BOl 5

Acrylonitrile BOl 50 1,1,1,2-Tetrach'loroethane BOl 5

Benzene BOl 5

1,1,2,2*Tetrachloroethane Sal 5

Bromochloromethane Sal 5

Tetrachloroethene BOl 5

Sromodichloromethane Sal 5

Toluene Sal 5

Bromoform Sal 5

1,1,1-Trichloroethane Sal 5

Carbon disulfide Sal 5

1,1,2-Trichloroethane BOl 5

Carbon tetrachloride Sal 5

Trichloroethene Sal 5

Chlorobenzene Sal 5

Trichlorofluoromethane Sal 5

Chloroethane Sal 10 1,2,3-Trichloropropane Sal 5

Chloroform BOl 5

Vinyl acetate Sal 50 1,2-Dibromo-3-chloropropane BOl 20 Vinyl chloride BOl 2

Dibromochloromethane BOl 5

m & p-Xylenes BOl 10 1,2-Dibromoethane BOl 5

o-Xylene BOl 5

trans-1,4-Dichloro-2-butene BOl 10 1,2-Dichlorobenzene Sal 5

1A-Dichlorobenzene Sal 5

1,1-Dichloroethane Sal 5

1,2*Dichloroethane Sal 5

1,1-Dichloroethene SOL 5

cis-1,2-Dichloroethene Sal 5

trans-1,2*Dichloroethene BOL 5

1,2-Dichloropropane Sal 5

cis-1,3-Dichloropropene Sal 5

trans-1,3-Dichloropropene

'Sal 5

Ethylbenzene Sal 5

2-Hexanone Sal 50 Methyl bromide Sal 10 Methyl chloride Sal 10 Methyl ethyl ketone Sal 100 Methyl iodide Sal 5

4-Methyl-2-pentanone Sal 50 Methylene bromide Sal 5

Methylene chloride Sal 5

Page 11 of 42

[A CL 1........--

AD

__V~

CE~'D~C~'H~E......_'M-TS~T.~1l~y......_LAB~___:'S.~,~IM~C~.

Phone: (770) 409-1444 3039 Amwiler Road' Suite 100

Atlanta, GA 30360 Fax: (770) 409-1844 P.O. Box 88610* Atlanta, GA 30356 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

AC L Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12/18/2006 V.O. (50308/82608)

Appendix I Sample 10:

Trip Blank Matrix:

Water Date Sampled:

12/04/2006 Date Extracted:

Date Analyzed:

12/15/2006 ACL Sample #: 250677 Units:

1J9/L Analyst:

ME Analvte Result PQL Analvte Result PQL Acetone SOL 100 Styrene SOL 5

Acrylonitrile Sal 50 1,1,1,2-Tetrachloroethane Sal 5

Senzene Sal 5

1,1,2,2-Tetrachloroethane Sal 5

Sromochloromethane Sal 5

Tetrachloroethene Sal 5

Sromodichloromethane Sal 5

Toluene Sal 5

Sromoform Sal 5

1,1,1-Trichloroethane Sal 5

Carbon disulfide Sal 5

1,1,2-Trichloroethane Sal 5

Carbon tetrachloride Sal 5

Trichloroethene Sal 5

Chlorobenzene Sal 5

Trichlorofluoromethane Sal 5

Chloroethane SOL 10 1,2,3-Trichloropropane Sal 5

Chloroform Sal 5

Vinyl acetate Sal 50 1,2-Dibromo-3-chloropropane Sal 20 Vinyl chloride Sal 2

Dibromochloromethane Sal 5

m &p-Xylenes Sal 10 1,2-Dibromoethane Sal 5

o-Xylene Sal 5

trans-1 A-Dichloro-2-butene Sal 10 1,2-Dichlorobenzene Sal 5

1A-Dichlorobenzene Sal 5

1,1-Dichloroethane SOL 5

1,2-Dichloroethane Sal 5

1.1-Dichloroethene Sal 5

cis-1,2-Dichloroethene Sal 5

trans-1,2-Dichloroethene Sal 5

1,2-Dichloropropane Sal 5

cis-1,3-Dichloropropene Sal 5

trans-1,3-Dichloropropene Sal 5

Ethylbenzene Sal 5

2-Hexanone Sal 50 Methyl bromide Sal 10 Methyl chloride Sal 10 Methyl ethyl ketone Sal 100 Methyl iodide Sal 5

4-Methyl-2-pentanone Sal 50 Methylene bromide Sal 5

Methylene chloride Sal 5

Page 12 of 42

ADVANCED CHEMISTRYLABS, INC.

[ACLI Phone: (770) 4~09~--14"44""'--------------""'3""03~9-A~m-w-i1-e-rR!"'o-a~d-.....

Su-it-e-1~00~*-A~t..

la-nta~.G~A~30~3~6""O-Fax: (770) 409-1844 P.O. Box 88610* Atlanta. GA 30356 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry :Rd.

Suite 136-446

'Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACl Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 Misceillane~usOrganics_ (8011) - Appendix II Sample ID:

GWC-5/MW-5 Matrix:

Water Date Sampled:

12/04/2006 Date Extracted:

12/11/2006 Date Analyzed:

12/12/2006 ACl Sample #: 250668 Units:

IJg/L Analyst:

AM Analvte 1.2-Dibromo-3-chloropropane 1,2-Dibromoethane Result SQ_l SQl Pgl 0.20 0.05 Page 13 of42

[A CL 1""---....._----AD-v.;_:4N_C_'E_'D_C_'H_~

"E._'M_'L_"S_T._'R__Y_LA

__B_s'_,L__"M__C_"

Phone: (770) 409-1444 3039 Amwiler Road" Suite 100' Atlanta. GA 30360 Fax: (770) 409-1844 P.O. Box 88610' Atlanta. GA 30356 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACl Project #:

Date Received:

Date Reported:

VogUe LF #3 52254 12/07/2006 12/18/2006 Miscellaneous Organics (8011)

Appendix II ACl Sample #: 250669 Units:

~g/L Analvte Result Pgl 1,2-Dibromo-3-chloropropane SOL 0.20 1,2-Dibromoethane sal 0.05 Sample ID:

GWB-6/MW-6 Matrix:

Water Date Sampled:

12/05/2006 Date Extracted:

12/11/2006 Date Analyzed:

1211212006 Analyst:

AM Page 14 of 42

ADVANCED CHEMISTRYLABS, INC.

]ACLI Phone: (770) 4~09~-~144~4-"""""'-------"'----""S"'OS~9!!!!!!A!""m"'w-i1-e-rR....o-a-d-*...Su-it....

e!!!!!!1~00....*-A....t1....a-nta-,G....A-SO...S-e-o-Fax: (770) 409*1844 P.O. Box 88610* Atlanta. GA SOS56 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACl Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12118/2006 Mliscellaneous Organics (8011)

Appendix II Sample 10:

GWA-7/MW-7 Matrix:

Water Date Sampled:

12104/2006 Date Extracted:

12111/2006 Date Analyzed:

12/12/2006 ACl Sample #: 250670 Units:

IlJg/L Analyst:

AM Analvte 1,2-Dibromo-3-chloropropane 1,2-Dibromoethane Result Sal SOL PQL 0.20 0.05 Page 15 of 42

Phone: (770)409-1444 Fax: (770) 409*1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100' Atlanta, GA 30360 P.O. Box 88610* Atlanta, GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

VogUe LF #3 52254 12/07/2006 12/18/2006 ACL Sample #: 250671 Units:

IJg/L Analvte Result PQL 1,2-Dibromo-3-chloropropane Sal 0.20 1,2-Dibromoethane Sal 0.05 Sample 10:

Miscellaneous Organics (8011)

Appendix II GWA-7/MW-7Dup Matrix:

Water Date Sampled:

12/04/2006 Date Extracted:

12/11/2006 Date Analyzed:

12/12/2006 Analyst:

AM Page 16 of 42

Phone: (770) 409-1444 Fax: (770) 409-1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100* Atlanta, GA 30360 P.O. Box 88610* Atlanta, GA 30356 www.advancedchemlstrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsell Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 1211812006 ACL Sample #: 250672 Units:

IJg/L Analvte Result PQL 1,2-Dibromo-3-chloropropane Sal 0.20 1,2-Dibromoethane Sal 0.05 Sample 10:

Miscellaneous Organics (8011) - Appendix_II GWC-13/MW-13 Matrix:

Water Date Sampled:

12/0412006 Date Extracted:

1211112006 Date Analyzed:

12/12/2006 Analyst:

AM Page 17 of 42

Phone: (770) 409*1444 Fax: (770) 409-1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABB, INC.

3039 Amwiler Road* Suite 100

Atlanta, GA 30360 P.O. Box 88610' Atlanta, GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 ACL Sample #: 250673 Units:

IJg/L Analvte Result POL 1,2-Dibromo-3-chloropropane Sal 0.20 1,2-Dibromoethane Sal 0.05 Sample 10:

Miscellan~ous Organics (8011)

Appendix II GWA-15/MW-15 Matrix:

Water Date Sampled:

12/0412006 Date Extracted:

12/11/2006 Date Analyzed:

1211212006 Analyst:

AM Page 18 of 42

jACLI Phone: (770) 409-1444 Fax: (770) 409-1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road' Suite 100

Atlanta, GA 30360 P.O. Box 88610* Atlanta, GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF#3 52254 12107/2006 12118/2006 ACL Sample #: 250674 Units:

~g/L Analvte Result PQL 1,2-Dlbromo-3-chloropropane Sal 0.20 1,2-Dibromoethane Sal 0.05 Sample 10:

MisceUaneous Organics (8011) - Appendix II GWB-16/MW-16R Matrix:

Water Date Sampled:

12105/2006 Date Extracted:

12/11/2006 Date Analyzed:

12/12/2006 Analyst:

AM Page 19 of 42

IACLI Phone: (770) 409-1444 Fax: (770) 409-1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road, Suite 100' Atlanta, GA 30360 P.O. Box 88610

Atlanta. GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 ACL Sample #: 250675 Units:

~g/L Analvte Result PQL 1,2-Dibromo-3-chloropropane SOL 0.20 1,2-Dibromoethane BOl 0.05 Sample 10:

Miscellaneous Organics (8011)

Appendix II GWC-17/MW-17 Matrix:

Water Date Sampled:

12/0512006 Date Extracted:

12/11/2006 Date Analyzed:

12/12/2006 Analyst:

AM Page 20 of 42

ADVANCED CHEMISTRYLABS, INC.

[ACLI Phone: (770) 4~09~-~1444~-------------""'3~03~9~A~m-w~i1~e!!!!"r R~o-a~d-*"::"Su.....it-e~1~OO~*-A~t~la~nta~.G~A~30~3~6~0-Fax: (770) 409-1844 P.O. Box 88610* Atlanta. GA 30356 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12118/2006 Miscellaneous Organics (8011)

Appendix II ACL Sample #: 250676 Units:

pg/L Analvte Result PQL 1,2-Dibromo-3-chloropropane SOL 0.20 1,2-Dibromoethane Sal 0.05 Sample 10:

EQ Blank Matrix:

Water Date Sampled:

12/05/2006 Date,Extracted:

1211112006 Date Analyzed:

12/1212006 Analyst:

AM Page 21 of 42

Phone: (770) 409-1444 Fax: (770) 409*1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100* Atlanta, GA 30360 P.O. Box 88610* Atlanta, GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

VogUe LF #3 52254 12/07/2006 12/18/2006 ACL Sample #: 250668 Units:

mg/L Analvte Result PQL Antimony Sal 0.006 Arsenic Sal 0.010 Barium 0.021 0.020 Seryllium Sal 0.004 Cadmium Sal 0.005 Chromium Sal 0.020 Cobalt Sal 0.050 Copper Sal 0.020 lead Sal 0.010 Nickel Sal 0.020 Selenium Sal 0.040 Silver Sal 0.010 Thallium Sal 0.002 Vanadium Sal 0.050 Zinc 0.062 0.020 Sample 10:

Appendix I Metals (6010B/7841/7041)

GWC-5/MW-5 Matrix:

Date Sampled:

Date Extracted:

Date Analyzed:

Analyst:

Water 12/04/2006 12/14/2006 SW Page 22 of 42

Phone: (770) 409-1444 Fax: (770) 409-1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100* Atlanta, GA 30360 P.O. Box 88610* Atlanta, GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12/18/2006 ACL Sample #: 250669 Units:

mg/L Analvte Result PQL Antimony Sal 0.006 Arsenic Sal 0.010 Sarium Sal 0.020 Beryllium Sal 0.004 Cadmium Sal 0.005 Chromium Sal 0.020 Cobalt Sal 0.050 Copper Sal 0.020 lead Sal 0.010 Nickel Sal 0.020 Selenium Sal 0.040 Silver Sal 0.010 Thallium Sal 0.002 Vanadium Sal 0.050 Zinc 0.028 0.020 Sample 10:

Appendix II Metals (60108/784117041)

GWB-6/MW-6 Matrix:

Date Sampled:

Date Extracted:

Date Analyzed:

Analyst:

Water 12105/2006 12114/2006 SW Page 23 of 42

]ACLI Phone: (770) 409-1444 Fax: (770) 409-1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100* Atlanta, GA 30360 P.O. Box 88610* Atlanta, GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12118/2006 ACL Sample #: 250670 Units:

mg/L Analvte Result PQL Antimony BOl 0.006 Arsenic BOl 0.010 Barium BOl 0.020 Beryllium BOl 0.004 Cadmium BOl 0.005 Chromium BOl 0.020 Cobalt BOl 0.050 Copper BOl 0.020 lead BOl 0.010 Nickel BOl 0.020 Selenium BOl 0.040 Silver BOl 0.010 Thallium BOl 0.002 Vanadium BOl 0.050 Zinc BOl 0.020 Sample 10:

AppendiX I Metals (60108/7841/7041)

GWA-7/MW-7 Matrix:

Date Sampled:

Date Extracted:

Date Analyzed:

Analyst:

Water 1210412006 12/14/2006 SW Page 24 of 42

IA CLI ADVANCED CHEMISTRYLABS, INC.

Phone: (770)4~09::--~144~4-------------~3~03~9~A~m-w~i1~e~rR~o-a~d-*~Su~it~e~1~00~*-A=-t~la-nta~,G~A~30~3~60~

Fax: (770)409-1844 P.O. Box 88610* Atlanta, GA 30356 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date 'Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12118/2006 Appendix I Metals (6010B/7841/7041)

ACL Sample #: 250671 Units:

mg/L Analvte Result PQL Antimony Sal 0.006 Arsenic Sal 0.010 Sarium Sal 0.020 Seryllium Sal 0.004 Cadmium Sal 0.005 Chromium Sal 0.020 Cobalt Sal 0.050 Copper Sal 0.020 lead Sal 0.010 Nickel Sal 0.020 Selenium Sal 0.040 Si~ver Sal 0.010 Thallium Sal 0.002 Vanadium Sal 0.050 Zinc Sal 0.020 Sample 10:

GWA-7/MW-7 Dup Matrix:

Date Sampled:

Date Extracted:

Date Analyzed:

Analyst:

Water 12104/2006 12114/2006 SW Page 25 of 42

[ACLI Phone: (770) 409-1444 Fax: (770)409-1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100

Atlanta. GA 30360 P.O. Box 88610* Atlanta. GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 ACL Sample #: 250672 Units:

mg/L Analvte Result PQL Antimony 80l 0.006 Arsenic 80l 0.010 Sarium 0.059 0.020 Seryllium Sal 0.004 Cadmium Sal 0.005 Chromium Sal 0.020 Cobalt Sal 0.050 Copper Sal 0.020 lead Sal 0.010 Nickel Sal 0.020 Selenium Sal 0.040 Silver Sal 0.010 Thallium Sal 0.002 Vanadium Sal 0.050 Zinc 0.055 0.020 Sample ID:

Appendix I Metals (60108/7841/7041)

GWC-13/MW-13 Matrix:

Date Sampled:

Date Extracted:

Date Analyzed:

Analyst:

Water 12/04/2006 12/14/2006 SW Page 26 of 42

Phone: (770) 409-1444 Fax: (770) 409-1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100* Atlanta. GA 30360 P.O. Box 88610* Atlanta. GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 ACL Sample #: 250673 Units:

mg/L Analvte Result PQL Antimony BOL 0.006 Arsenic BOL 0.010 Barium BOL 0.020 Beryllium SOL 0.004 Cadmium BOL 0.005 Chromium BOL 0.020 Coba'it BOL 0.050 Copper SOL 0.020 Lead BOL 0.010 Nickel 0.089 0.020 Selenium BOL 0.040 Silver SOL 0.010 Thallium BOL 0.002 Vanadium SOL 0.050 Zinc 0_316 0_020 Sample 10:

Appendix I Metals (60108/7841/7041)

GWA-15/MW-15 Matrix:

Date Sampled:

Date Extracted:

Date Analyzed:

Analyst:

Water 12/04/2006 12/14/2006 SW Page 27 of 42

ADVANCED CHEMISTRYLABS, INC.

]ACLI Phone: (770) 4~09~-~14~4~4~-------------3-0-3-9-A-m-w-i1e-r-R-o-a-d-*S....u-it-e-1-0-0-.A-t-'a-n-ta-,-GA-3-0-36 Fax: (770) 409-1844 P.O. Box 88610* Atlanta, GA 30356 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12118/2006 Appendix I Meta.ls (60108/7841/7041)

ACL Sample #: 250674 Units:

mg/L Analvte Result POL Antimony Sal 0.006 Arsenic Sal 0.010 Sarium sal 0.020 Seryllium sal 0.004 Cadmium Sal 0.005 Chromium Sal 0.020 Cobalt Sal 0.050 Copper Sal 0.020 lead Sal 0.010 Nickel Sal 0.020 Selenium Sal 0.040 Silver Sal 0.010 Thallium Sal 0.002 Vanadium Sal 0.050 Zinc Sal 0.020 Sample 10:

GWB-16/MW-16R Matrix:

Date Sampled:

Date Extracted:

Date Analyzed:

Analyst:

Water 12/05/2006 12/14/2006 SW Page 28 of 42

ADVANCED CHEMISTRYLABS, INC.

{ACLI Phone: (770) 4~0':"'9-"":"1444~--------------:3~03::":9~A~m-w~i~le-r

~Ro-a-:d-*~S""!ui'!""te""":1:":'0':"'0-.A':"':t":"'"la-nta:""'""":.G~A:"""':'30::":3:-:6~0-Fax: (770) 409-1844 P.O. Box 88610* Atlanta, GA 30356 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 Appendix I Metals (60108/7841/7041)

ACL Sample #: 250675 Units:

mg/l Analyte Result PQL Antimony Sal 0.006 Arsenic Sal 0.010 Sarium SOL 0.020 Seryllium SOL 0.004 Cadmium Sal 0.005 Chromium SOL 0.020 Cobalt SOL 0.050 Copper SOL 0.020 Lead SOL 0.010 Nickel SOL 0.020 Selenium Sal 0.040 Silver SOL 0.010 Thallium SOL 0.002 Vanadium Sal 0.050 Zinc Sal 0.020 Sample 10:

GWC-17/MW-17 Matr,ix:

Date Sampled:

Date Extracted:

Date Analyzed:

Analyst:

Water 12105/2006 12/14/2006 SW Page 29 of 42

[ACLI Phone: (770) 409-1444 Fax: (770) 409*1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100* Atlanta, GA 30360 P.O. Box 88610* Atlanta, GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt BatseJ Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 Appendix I Metals (60108/7841/7041)

ACL Sample #: 250676 Units:

mg/L Analvte Result PQL Antimony Sal 0.006 Arsenic Sal 0.010 Sarium Sal 0.020 Seryllium SOL 0.004 Cadmium SOL 0.005 Chromium SOL 0.020 Cobalt Sal 0.050 Copper Sal 0.020 lead Sal 0.010 Nickel SOL 0.020 Selenium Sal 0.040 Silver Sal 0.010 Thallium SOL 0.002 Vanadium SOL 0.050 Zinc SaL 0.020 Sample ID:

EQ Blank Matrix:

Date Sampled:

Date Extracted:

Date Analyzed:

Analyst:

Water 12105/2006 12114/2006 SW Page 30 of 42

1A CLI ADVANCED CHEMISTRYLABS. INC.

Phone: (770) 4~09~-~14~44~-------"""----""3~03~9~A-m-w"'lI-er""R-o-ad-.-S-u-ite-1-0....0-*-At-'a-n-ta-.G-A;""30-3-6 Fax: (770) 409*1844 P.O. Box 88610* Atlanta, GA 30356 e-mail: acl@acl-Iabs.net www.advancedchemistrylabs.com Client:

The Dextra Group Client Proj #:

Vogtle IF #3 1205 Johnson Ferry Rd.

ACL Project #:

52254 Suite 136-446 Date Received:

12107/2006 Marietta, GA 30068-0000 Date Reported:

12/18/2006

Contact:

Mr. Kurt Satsel Date Sample 10

~Cl#

Analvte Matrix Result f.Qb Units Analyzed GWC-5/MW-5 250668 Mercury (7470A)

Water Sal 0.0005 mg/L 12/14/2006 GWS-6/MW-6 250669 Mercury (7470A)

Water Sal 0.0005 mg/l 12/14/2006 GWA-7/MW-7 250670 Mercury (7470A)

Water 0.0008 0.0005 mg/l 12/14/2006 GWA-7/MW-7Dup 250671 Mercury (7470A)

Water 0.0016 0.0005 mg/l 12/14/2006 GWC-13/MW-13 250672 Mercury (7470A)

Water SQl 0.0005 mg/l 12/14/2006 GWA-15/MW-15 250673 Mercury (7470A)

Water Sal 0.0005 mg/l 12/14/2006 GWS-16/MW-16R 250674 Mercury (7470A)

Water Sal 0.0005 mg/l 12/14/2006 GWC-17/MW-17 250675 Mercury (7470A)

Water Sal 0.0005 mg/l 12/14/2006 EO Siank 250676 Mercury (7470A)

Water Sal 0.0005 mg/l 12/14/2006 Page 31 of 42

QUALITY CONTROL Page 32 of 42

IACLI Phone: (770)409-1444 Fax: (770) 409-1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100* Atlanta, GA 30360 P.O. Box 88610* Atlanta. GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel CUent Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12107/2006 12/18/2006 V.O. (50308/82608) - Appendix I SURROGATE PERCENT RECOVERY

SUMMARY

Water Dibromofluoromethane 1,2-Dichloroethane-d4 Toluene-d8 4-Bromofluorobenzene (77-137)

(72-138)

(84-122)

(77-125)

ACL Sample #

250668 102 87 102 92 250669 1'03 91 103 94 250670 100 86 104 94 250671 102 89 105 94 250672 102 85 103 93 250673 104 87 103 90 250674 99 86 101 90 250675 99 90 102 92 250676 100 85 100 88 250677 100 88 101 91

- Matrix Interference DO=DillJted Out Page 33 of 42

ADVANCED CHEMISTRYLABS, INC.

]ACLI Phone: (770) 4~O""9'-1-444----------------3-0-3-9-A-m-w-i-le-r

-R-oa-d-.-S-u-it-e-1-00-.-A-t-la-n-ta-.-G-A-3-0-3 Fax: (770) 409-1844 P.O. Box 88610* Atlanta. GA 30356 e-mail: acJ@acl-labs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta. GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 v.o. (50308/82608) - Appendix I Sample 10:

Matrix:

Water Date Sampled:

Date Extracted:

Date Analyzed:

12/15/2006 ACL Sample #:

Blank Units:

~g/L Analyst:

ME Analvte Result

~

Analvte Result PQL Acetone SOL 100 Styrene SOL 5

Acrylonitrile SOL 50 1,1,1,2-Tetrachloroethane SOL 5

Benzene BOL 5

1,1,2.2-Tetrachloroethane BOL 5

Bromochloromethane BOL 5

Tetrachloroethene BOL 5

Sromodichloromethane SOL 5

Toluene SOL 5

Sromoform SOL 5

1.1,1-Trichloroethane SOL 5

Carbon disulfide SOL 5

1,1,2-Trichloroethane SOL 5

Carbon tetrachloride SOL 5

Trichloroethene SOL 5

Chlorobenzene SOL 5

Trichlorofluoromethane SOL 5

Chloroethane SOL 10 1.2,3-Trichloropropane BOL 5

Chloroform SOL 5

Vinyl acetate SOL 50 1,2-Dibromo-3-chloropropane SOL 20 Vinyl chloride SOL 2

Dibromochloromethane SOL 5

m & p-Xylenes SOL 10 1,2-Dibromoethane SOL 5

o-Xylene SOL 5

trans-1,4-Dichloro-2-butene SOL 10 1,2-Dichlorobenzene SOL 5

1A-Dichlorobenzene SOL 5

1.1-Dichloroethane SOL 5

1,2-Dichloroethane SOL 5

1,1-Dichloroethene SOL 5

cis-1.2-Dichloroethene SOL 5

trans-1,2-Dichloroethene SOL 5

1,2-Dichloropropane SOL 5

cis-1,3-Dichloropropene SOL 5

trans-1.3-Dichloropropene SOL 5

Ethylbenzene BOL 5

2-Hexanone SOL 50 Methyl bromide BOL 10 Methyl chloride SOL 10 Methyl ethyl ketone SOL 100 Methyl iodide SOL 5

4-Methyl-2-pentanone SOL 50 Methylene bromide SOL 5

Methylene chloride SOL 5

Page 34 of 42

ADVANCED CHEMISTRY LABS, INC.

GC/MS UNIT # 2 WATER VOLATILE MATRIX SPIKE/MATRIX SPIKE DUPLICATE RECOVERY ate:

12-15-06

- Sample No.:

250677 SAMPLE MS MS QC.

ADDED CONCENTRATION CONCENTRATION LIMITS UND (uel!)

(wall)

(uo/l)

REC REC.

ene 20.0 0.0 19.5 98 54-144 20.0 0.0 20.0 I

100 82-132 20.0 0.0 I

18.8 94 73-128 20.0 I

0.0 19.5 98 83-130 20.0 0.0 20.6 103 I 88-1123 SPIKE MSD MSD I

ADDED CONCENTRAliON QC LIMITS UND I

(wall)

REC RPD RPD REC.

ene 20.0 20.0 100 3

14 54-144 20.0 19.9 100 1

11

.82-132 20.0 20.0 100 6

14

'73-128 I

20.0 20.3 I

102 4

13 83-130 I

20.0 20.4 102 1

13 88~123 1

e used to flag recovery and RPD values with an asterisk ide of QC limits out of 5 outside limits 0

out of 10 outside limits chlorobenzene trichloroethene toluene Matrix Spike COMPO 1,1-dichloroeth benzene Sequence 0 chlorobelJzene Values outs

Column to b Comments:

RPD:

0 Spike Recovery I

COMPO 1,1-dichloroeth benzene trichloroethene toluene Page 35 of 42

IACLI Phone: (770) 409-1444 Fax: (770) 409-1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100

Atlanta, GA 30360 P.O. Box 88610* Atlanta, GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 Miscellaneous Organics (8011)

Appendix II SURROGATE PERCENT RECOVERY

SUMMARY

Water Bromofluorobenzene (40-140)

ACL Sample #

250668 89 250669 90 250670 118 250671 96 250672 77 250673 79 250674 82 250675 77 250676 76

- Matrix Interference DO=Diluted Out Page 36 of 42

ADVANCED CHEMISTRYLABS, INC.

IALLI Phone: (770) 4~09~-~14~44~------------"""3-03~9~A~m-w-il-e-rR'!"o-a~d-*~Su-it-e~1""00""*-A~t!""'la"'nta~,G~A~30~3""6~0-Fax: (770) 409-1844 P.O. Box 88610

Atlanta. GA 30356 e-mail: acl@acl-labs.net www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel Client ProJ #:

ACl Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 Miscellaneous Organics (8011)

Appendix II Sample 10:

ACL Sample #:

Blank Analvte 1,2-Dibromo-3-chloropropane 1.2-Dibromoethane Units:

Result BOl BOl

~g/L POL 0.20 0.05 Matrix:

Date Sampled:

Date Extracted:

Date Analyzed:

Analyst:

Water 12/11/2006 12/12/2006 AM Page 37 of 42

Advanced Chemistry Labs Pesticides Spike Report (SW-846 Method 8011)

Instrument ID:

HP5890A-ECD/FIDGC#2 Column: STx-CLPII, 30m, O.53mm, O.5pm ACL#:

Matrix:

Extraction Date:

Analysis Date:

Initial Volume:

Final Volume:

Dilution Factor:

Unit:

LCS1-121106 Water 12111/06 12112106 35.0 ml 2

1 f../gIL orppb R.T.

Spike Sample MS MS R.T.

MSD MSD RPD QC Limits Pesticide MS Added Result Cone.

ec. (%)

MSD Cone.

ec. (%)

rAJ)

RPD eeovery EDB 5.383 0.008 0.000 0.006 77 5.407 0.007 82 6

25 60 140 TCP 8.830 0.009 0.000 0.000 0.000 25 60 140 DBep 10.137 0.009 0.000 0.006 72 10.141 0.008 87 19 25 60 140

Outside QC limits Page 38 of 42

{ACLI Phone: (770) 409-1444 Fax: (770) 409*1844 e-mail: acl@acl-Iabs.net ADVANCED CHEMISTRYLABS, INC.

3039 Amwiler Road* Suite 100

Atlanta, GA 30360 P.O. Box 8861o* Atlanta, GA 30356 www.advancedchemistrylabs.com Client:

Contact:

The Dextra Group 1205 Johnson Ferry Rd.

Suite 136-446 Marietta, GA 30068-0000 Mr. Kurt Batsel CI,ient Proj #:

ACL Project #:

Date Received:

Date Reported:

Vogtle LF #3 52254 12/07/2006 12/18/2006 Appendix I Metals (60108/7841/7041)

Sample 10:

ACL Sample #:

Blank Units:

mg/L Analvte Result PQL Antimony Sal 0.006 Arsenic Sal 0.010 Barium Sal 0.020 Beryllium Sal 0.004 Cadmium Sal 0.005 Chromium Sal 0.020 Cobalt Sal 0.050 Copper Sal 0.020 lead Sal 0.010 Nickel Sal 0.020 Selenium BOl 0.040 Silver Sal 0.010 Thallium Sal 0.002 Vanadium Sal 0.050 Zinc Sal 0.020 Matrix:

Date Sampled:

Date Extracted:

Date Analyzed:

Analyst:

Water 12/14/2006 SW Page 39 of 42

Instrument:

Date Digested :

Date Analyzed:

ACL Sample No.:

ADVANCED CHEMISTRY LABS, INC.

Appendix I Metals (60108/7841/7041)

Water Matrix Spike/Spike Duplicate Recoveries TJA 61 E Trace ICAP 12-13-06 12-14-06 LCS/LCSD121306 SPIKE SAMPLE MS MS MSD MSD Added Result Cone.

Ree.

Cone.

Ree.

QC Limits ANALYTE (mg/L)

(mg/L)

(%)

(mg/L)

(%)

RPD RPD

% Recovery Antimony (7041) 0.200 0.000 0.201 100 0.191 95 5

20 70 130 Arsenic 0.200 0.000 0.194 97 0.184 92 5

20 75 I 125 Barium 1.000 0.000 1.046 105 0.980 98 7

20 75 125 Beryllium 0.200 0.000 0.222 111 0.209 105 6

20 75 125 Cadmium 0.050 0.000 0.053 105 0.050 99 6

20 75 125 Chromium 0.200 0.000 0.218 109 0.206 103 5

20 75 125 Cobalt 0.200 0.000 0.215 108 0.204 102 6

20 75 125 Copper 0.200 0.000 0.214 107 0.202 101 6

20 75 125 Lead 0.200 0.000 0.207 104 0.196 98 5

20 75 125 Nickel 0.200 0.000 0.218 109 0.204 102 7

20 75 125 Selenium 0.050 0.000 0.047 94 0.045 91 4

20 75 125 Silver 0.020 0.000 0.020 101 0.019 95 7

20 75 125 Thallium (7841) 0.200 0.000 0.197 98 0.186 93 6

20 70 130 Vanadium 0.500 0.000 0.545 109 0.513 103 6

20 75 125 Zinc 0.200 0.000 0.216 108 0.204 102 5

20 75 125

Outside QC Limits Comment:

Page 40 of 42

ACL "t.'\\".

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ADVANCED CHEM/STR LABS', IN 3039 Amwiler Road* Suite 100* Atlanta, GA 30360. P. O. Box 88610

Atlanta. GA 30356. (770) 409-1444* Fax (770) 409-1844 l::J III (Cl co J>,.....

Company Name:

Phone#:{77C9)67re,* 7(, rt.

CHAIN-OF CUSTODY RECORD TIe f).,.rfre.

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~~CHAIN-OF CUSTODY RECORD Fax#:l"'110")52I-S?l.fS AND ANALYSIS REQUEST com~JY ~ddress: ~l ~~~

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ApPENDIX C - STATISTICAL ANALYSES
Concentrations (mg/L)
Parameter: Barium Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Total Samples: 72 Total Non-Detect: 45 Percent Non-Detects: 62.5%
Total Background Samples: 12 There is 1 background well Well Samples ND Date Result Original GWA-15/MW-1512 12 (100%)
7/30/2002 ND<0.01 ND<0.02 9/24/2002 ND<0.01 ND<0.02 10/21/2002 -
ND<0.01 ND<0.02 12/3/2002 ND<0.005 ND<0.01 6/24/2003 ND<0.01 ND<0.02 12/17/2003 ND<0.01 ND<0.02 6/15/2004 ND<0.01 ND<0.02 12/28/2004 ND<0.01 ND<0.02 6/14/2005 ND<0.01 ND<0.02 12/5/2005 ND<0.01 ND<0.02 6/5/2006 ND<0.01 ND<0.02 12/4/2006 ND<0.01 ND<0.02 There are 8 compliance wells Well Samples ND Date Result Original GWA-7/MW-7 12 9 (75%)
7/3012002 -
ND<0.01 ND<0.02 9/24/2002 ND<0.01 ND<0.02 10/21/2002 ND<0.01 ND<0.02 12/3/2002 0.015 0.015 6/24/2003 0.036 0.036 12/17/2003 ND<0.01 ND<0.02 6/15/2004 ND<0.01 ND<0.02 12/28/2004 -
ND<0.01 ND<0.02 6/14/2005 ND<0.01 ND<0.02 12/6/2005 -
0.023 0.023 6/5/2006 -
ND<0.01 ND<0.02 12/4/2006 -
ND<0.01 ND<0.02 GWB-6/MW-6 12 12 (100%)
7/3012002 ND<0.01 ND<0.02 9/24/2002 ND<0.01 ND<0.02 10/21/2002 ND<0.01 ND<0.02 12/3/2002 ND<0.005 ND<0.01 6/24/2003 ND<0.01 ND<0.02 12/17/2003 ND<0.01 ND<0.02 6/15/2004 ND<0.01 ND<0.02 12/28/2004 ND<0.01 ND<0.02 6/13/2005 ND<0.01 ND<0.02 12/5/2005 ND<0.01 ND<0.02 6/5/2006 ND<0.01 ND<0.02 12/5/2006 ND<0.01 ND<0.02 GWC-13/MW-1312 0(0%)
7/30/2002 0.077 0.077 Page 1
9/24/2002 0.085 0.085 10/21/2002 0.083 0.083 12/3/2002 0.082 0.082 6/24/2003 -
0.0295 0.0295 12/17/2003 -
0.0325 0.0325 6/15/2004 -
0.034 0.034 12/28/2004 0.043 0.043 6/13/2005 -
0.03 0.03 12/6/2005 0.044 0.044 6/5/2006 0.051 0.051 12/4/2006 0.059 0.059 GWC-14/MW-146 0(0%)
7/30/2002 0.068 0.068 9/24/2002 -
0.0935 0.0935 10/21/2002 0.064 0.064 12/3/2002 0.106 0.106 6/24/2003 0.051 0.051 12/17/2003 0.189 0.189 GWC-5/MW-5 12 6 (50%)
7/30/2002 ND<0.01 ND<0.02 9/24/2002 0.02 0.02 10/21/2002 ND<0.01 ND<0.02 12/3/2002 0.018 0.018 6/24/2003 ND<0.01 ND<0.02 12/17/2003 0.142 0.142 6/15/2004 0.04 0.04 12/28/2004 ND<0.01 ND<0.02 6/13/2005 ND<0.01 ND<0.02 12/6/2005 ND<0.01 ND<0.02 6/5/2006 0.031 0.031 12/4/2006 0.021 0.021 GWC-17/MW-174 4 (100%)
6/15/2005 ND<0.01 ND<0.02 12/6/2005 ND<0.01 ND<0.02 6/5/2006 ND<0.01 ND<0.02 12/5/2006 ND<0.01 ND<0.02 GWC-18/MW-181 1 (100%)
6/15/2005 ND<0.01 ND<0.02 GWB-16/MW-161.
1 (100%)
12/5/2006 ND<0.01 ND<0.02 There is 1 unused well Well Samples NO Date Result Original EQ-Blank 8
8 (100%)
6/24/2003 ND<0.01 ND<0.02 12/17/2003 ND<0.01 ND<0.02 6/15/2004 ND<0.01 ND<0.02 12/28/2004 -
ND<0.01 ND<0.02 6/15/2005 -
ND<0.01 ND<0.02 12/6/2005 ND<0.01 ND<0.02 6/6/2006 ND<0.01 ND<0.02 12/5/2006 ND<0.01 ND<0.02 Page 2
sum(mx) o
-0.011131
-0.0207652
-0.0381572
-0.0542297
-0.0691382
-0.0830557
-0.0961615
-0.10848
-0.120081
-0.131066
-0.14143
-0.151212
-0.160442
-0.169184
-0.177423
-0.185179
-0.192502
-0.199373
-0.205806
-0.211844
-0.217466
-0.222681
-0.227498
-0.231953
-0.236023
-0.239714
-0.24306
-0.246036
-0.248647
-0.250922
-0.252839
-0.254399
-0.255606
-0.256484
-0.257011
-0.257186
-0.257011
-0.256484
-0.255606
-0.254399
-0.252839
-0.250922
-0.248647
-0.246036
-0.24306
-0.238042 sum(mI\\2) o 4.956 8.6687 11.6935 14.2768 16.4994 18.4364 20.154 21.6715 23.0173 24.224 25.2982 26.255 27.1069 27.8712 28.55 29.1515 29.6877 30.1599 30.5738 30.9383 31.2543 31.5263 31.7584 31.9568 32.1224 32.2587 32.3706 32.4592 32.5274 32.5792 32.6159 32.6402 32.6548 32.6625 32.6653 32.6656 32.6659 32.6687 32.6764 32.6909 32.7153 32.752 32.8038 32.872 32.9606 33.0724 m(i) o
-2.22621
-1.92684
-1.7392
-1.60725
-1.49085
-1.39175
-1.31058
-1.23187
-1.16012
-1.09847
-1.03643
-0.97815
-0.923014
-0.874218
-0.823893
-0.775574
-0.732275
-0.687131
-0.643345
-0.603765
-0.56217
-0.521527
-0.481728
-0.445443
-0.40701
-0.369171
-0.334503
-0.297612
-0.26112
-0.227545
-0.191671
-0.156042
-0.12061
-0.0878447
-0.0526632
-0.0175476 0.0175476 0.0526632 0.0878447 0.12061 0.156042 0.191671 0.227545 0.26112 0.297612 0.334503 Shapiro-Francia Test of Normality Parameter: Barium All Wells Normality Test of Parameter Concentrations Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Total Sample Size = 72 i
x(i) o 0
1 0.005 2
0.005 3
0.01 4
0.01 5
0.01 6
0.01 7
0.01 8
0.01 9
0.01 10 0.01 11 0.01 12 0.01 13 0.01 14 0.01 15 0.01 16 0.01 17 0.01 18 0.01 19 0.01 20 0.01 21 0.01 22 0.01 23 0.01 24 0.01 25 0.01 26 0.01 27 0.01 28 0.01 29 0.01 30 0.01 31 0.01 32 0.01 33 0.01 34 0.01 35 0.01 36 0.01 37 0.01 38 0.01 39 0.01 40 0.01 41 0.01 42 0.01 43 0.01 44 0.01 45 0.01 46 0.015 Page 3
47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 0.018 0.02 0.021 0.023 0.0295 0.03 0.031 0.0325 0.034 0.036 0.04 0.043 0.044 0.051 0.051 0.059 0.064 0.068 0.077 0.082 0.083 0.085 0.0935 0.106 0.142 0.369171 0.40701 0.445443 0.481728 0.521527 0.56217 0.603765 0.643345 0.687131 0.732275 0.775574 0.823893 0.874218 0.923014 0.97815 1.03643 1.09847 1.16012 1.23187 1.31058 1.39175 1.49085 1.60725 1.7392 1.92684 33.2087 33.3744 33.5728 33.8049 34.0769 34.3929 34.7574 35.1713 35.6435 36.1797 36.7812 37.46 38.2243 39.0762 40.033 41.1072 42.3138 43.6597 45.1772 46.8948 48.8318 51.0544 53.6377 56.6625 60.3752
-0.231,397
-0.223257
-0.213902
-0.202823
-0.187438
-0.170573
-0.151856
-0.130947
-0.107585
-0.0812227
-0.0501'998
-0.0147724 0.0236932 0.0707669 0.120653 0.181,802 0.252104 0.330992 0.425846 0.533313 0.648828 0.775551 0.925829 1.11018 1.38379 Sample Standard Deviation = 0.0339747 Numerator =1.91.489 Denominator = 4.94797 = 71 60.3752 W Statistic = 0.387005 5% Critica'l value of 0.968 exceeds 0.387005 Evidence of non-normality at 95% level of significance 1% Critical value of 0.956 exceeds 0.387005 Evidence of non-normality at 99% level of significance Page 4
Kruskal-Wallis Non-Parametric Test Parameter: Barium Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Kruskal Wallis Ranks Background Wells WelllD Date Result Rank GWA-15/MW-157/30/2002 ND<0.01 23 9/24/2002 ND<0.01 23 10/21/2002 -
ND<0.01 23 12/3/2002 ND<0.005 23 6/24/2003 ND<0.01 23 12/17/2003 ND<0.01 23 6/15/2004 ND<0.01 23 12/28/2004 ND<0.01 23 6/14/2005 ND<0.01 23 12/5/2005 ND<0.01 23 6/5/2006 ND<0.01 23 12/4/2006 ND<0.01 23 Rank Sum =276 Rank Mean =23 Background Rank Sum =276 Background Rank Mean =23 Compliance Wells WelllD Date Result Rank GWA-7/MW-7 7/30/2002 -
ND<0.01 23 9/24/2002 ND<0.01 23 10/21/2002 ND<0.01 23 12/3/2002 0.015 46 6/24/2003 0.036 56 12/17/2003 ND<0.01 23 6/15/2004 ND<0.01 23 12/28/2004 -
ND<0.01 23 6/14/2005 ND<0.01 23 12/6/2005 -
0.023 50 6/5/2006 -
ND<0.01 23 12/4/2006 -
ND<0.01 23 Rank Sum =359 Rank Mean =29.9167 GWB-6/MW-6 7/30/2002 ND<0.01 23 9/24/2002 ND<0.01 23 10/21/2002 ND<0.01 23 12/3/2002 ND<0.005 23 6/24/2003 ND<0.01 23 12/17/2003 ND<0.01 23 6/15/2004 ND<0.01 23 12/28/2004 ND<0.01 23 6/13/2005 ND<0.01 23 Page 5
12/5/2005 ND<0.01 23 6/5/2006 ND<0.01 23 12/5/2006 ND<0.01 23 Rank Sum =276 Rank Mean =23 GWC-13/MW-137/30/2002 0.077 65 9/24/2002 0.085 68 10/21/2002 0.083 67 12/3/2002 0.082 66 6/24/2003 -
0.0295 51 12/17/2003 -
0.0325 54 6/15/2004 -
0.034 55 12/28/2004 0.043 58 6/13/2005 -
0.03 52 12/6/2005 0.044 59 6/5/2006 0.051 60 12/4/2006 0.059 62 Rank Sum =717 Rank Mean =59.75 GWC-14/MW-147/30/2002 0.068 64 9/24/2002 -
0.0935 69 10/21/2002 0.064 63 12/3/2002 0.106 70 6/24/2003 0.051 61 12/17/2003 0.189 72 Rank Sum =399 Rank Mean =66.5 GWC-5/MW-5 7/30/2002 ND<0.01 23 9/24/2002 0.02 48 10/21/2002 ND<0.01 23 12/3/2002 0.018 47 6/24/2003 ND<0.01 23 12/17/2003 0.142 71 6/15/2004 0.04 57 12/28/2004 ND<0.01 23 6/13/2005 ND<0.01 23 1216/2005 ND<0.01 23 6/5/2006 0.031 53 12/4/2006 0.021 49 Rank Sum =463 Rank Mean =38.5833 GWC-17IMW-176/15/2005 ND<0.01 23 12/6/2005 ND<0.01 23 6/5/2006 ND<0.01 23 12/5/2006 ND<0.01 23 Rank Sum =92 Rank Mean =23 GWC-18/MW-186/15/2005 ND<0.01 23 Rank Sum =23 Rank Mean =23 GWB-16/MW-1612/5/2006 ND<0.01 23 Page 6
Rank Sum =23 Rank Mean = 23 Calculation Results:
Kruskal-Wallis H Statistic = 40.9279 Kruskal-Wallis H Statistic (adjusted for tied non-detects) =54.1422 95% Confidence comparison value is 15.5073 at 8 degrees of freedom 40.9279 > 15.5073 indicating a significant group difference at 5% significance level 54.1422 > 15.5073 indicating a significant group difference at 5% significance level when adjusted for ties Critical Value 198763 19.8763 198763 24.3434 19.8763 281093 50.6748 50.6748 Dif from Bkg 6.91667 o
36.75 43.5 15.5833 o
o o
Individual Well Comparisons at 1% Significance Level per Comparison 1% Z score is 2.32634 Mean background rank is 23 Well Mean Rank GWA-7/MW-7 299167 GWB-6/MW-6 23 GWC-13/MW-1359.75 GWC-14/MW-1466.5 GWC-5/MW-5 38.5833 GVlJC-17/MW-1723 GWC-18/MW-1823 GWB-16/MW-1623 Critical Value 21.4637 21.4637 21.4637 262875 21.4637 30.3542 54.7219 547219 Diffrom Bkg 6.91667 o
36.75 435 15.5833 o
o o
Individual Well Comparisons at Groupwise 5% Significance Level (0.625% Significance Level per comparison) 0.625% Z score is 2.51213 Mean background rank is 23 Well Mean Rank GWA-7/MW-7 29.9167 GWB-6/MW-6 23 GWC-13/MW-1359.75 GWC-14/MW-1466.5 GWC-5/MW-5 38.5833 GWC-17/MW-1723 GWC-18/MW-1823 GWB-16/MW-1623 Page 7
Concentrations (mg/L)
Parameter: Nickel Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Total Samples: 72 Total Non-Detect: 70 Percent Non-Detects: 97.2222%
Total Background Samples: 12 There is 1 background well Well Samples ND Date Result Original GWA-15/MW-1512 11 (91.6667%)
7/30/2002 ND<0.01 ND<0.02 9/24/2002 ND<0.01 ND<0.02 10/21/2002 -
ND<0.01 ND<0.02 12/3/2002 ND<0.02 ND<0.04 6/24/2003 ND<0.01 ND<0.02 12/17/2003 ND<0.01 ND<0.02 6/15/2004 ND<0.01 ND<0.02 12/28/2004 ND<0.01 ND<0.02 6/14/2005 ND<0.01 ND<0.02 12/5/2005 ND<0.01 ND<0.02 6/5/2006 ND<0.01 ND<0.02 12/4/2006 0.089 0.089 There are 8 compliance wells Well Samples ND Date Result Original GWA-7/MW-7 12 12 (100%)
7/30/2002 -
ND<0.01 ND<0.02 9/24/2002 ND<0.01 ND<0.02 10/21/2002 ND<0.01 ND<0.02 12/3/2002 ND<0.02 ND<0.04 6/24/2003 ND<0.01 ND<0.02 12/17/2003 ND<0.01 ND<0.02 6/15/2004 ND<0.01 ND<0.02 12/28/2004 -
ND<0.01 ND<0.02 6/14/2005 ND<0.01 ND<0.02 12/6/2005 -
ND<0.01 ND<0.02 6/5/2006 -
ND<0.01 ND<0.02 12/4/2006 -
ND<0.01 ND<0.02 GWB-6/MW-6 12 12 (100%)
7/30/2002 ND<0.01 ND<0.02 9/24/2002 ND<0.01 ND<0.02 10/21/2002 ND<0.01 ND<0.02 12/3/2002 ND<0.02 ND<0.04 6/24/2003 ND<0.01 ND<0.02 12/17/2003 ND<0.01 ND<0.02 6/15/2004 ND<0.01 ND<0.02 12/28/2004 ND<0.01 ND<0.02 6/13/2005 ND<0.01 ND<0.02 12/5/2005 ND<0.01 ND<0.02 6/5/2006 ND<0.01 ND<0.02 12/5/2006 ND<0.01 ND<0.02 GWC-13/MW-1312 12(100%)
7/30/2002 ND<0.01 ND<0.02 Page 8
9/24/2002 ND<0.01 ND<0.02 10/21/2002 ND<0.01 ND<0.02 12/3/2002 ND<0.02 ND<0.04 6/24/2003 -
ND<0.01 ND<0.02 12/17/2003 -
ND<0.01 ND<0.02 6/15/2004 -
ND<0.01 ND<0.02 12/28/2004 ND<0.01 ND<0.02 6/13/2005 -
ND<0.01 ND<0.02 12/6/2005 ND<0.01 ND<0.02 6/5/2006 ND<0.01 ND<0.02 12/4/2006 ND<0.01 ND<0.02 GWC-14/MW-146 5 (83.3333%)
7/30/2002 ND<0.01 ND<0.02 9/24/2002 -
ND<0.01 ND<0.02 10/21/2002 ND<0.01 ND<0.02 12/3/2002 ND<0.02 ND<0.04 6/24/2003 ND<0.01 ND<0.02 12/17/2003 0.034 0.034 GWC-5/MW-5 12 12 (100%)
7/30/2002 ND<0.01 ND<0.02 9/24/2002 ND<0.01 ND<0.02 10/21/2002 ND<0.01 ND<0.02 12/3/2002 ND<0.02 ND<0.04 6/24/2003 ND<0.01 ND<0.02 12/17/2003 ND<0.01 ND<0.02 6/15/2004 ND<0.01 ND<0.02 12/28/2004 ND<0.01 ND<0.02 6/13/2005 ND<0.01 ND<0.02 12/6/2005 ND<0.01 ND<0.02 6/5/2006 ND<0.01 ND<0.02 12/4/2006 ND<0.01 ND<0.02 GWC-17/MW-174 4 (100%)
6/15/2005 ND<0.01 ND<0.02 12/6/2005 ND<0.01 ND<0.02 6/5/2006 ND<0.01 ND<0.02 12/5/2006 ND<0.01 ND<0.02 GWC-18/MW-181 1 (100%)
6/15/2005 ND<0.01 ND<0.02 GWB-16/MW-161.
1 (100%)
12/5/2006 ND<0.01 ND<0.02 There is 1 unused well Well Samples ND Date Result Original EQ-Blank 8
8 (100%)
6/24/2003 ND<0.01 ND<0.02 12/17/2003 ND<0.01 ND<0.02 6/15/2004 ND<0.01 ND<0.02 12/28/2004 -
ND<0.01 ND<0.02 6/15/2005 -
ND<0.01 ND<0.02 12/6/2005 ND<0.01 ND<0.02 6/6/2006 ND<0.01 ND<0.02 12/5/2006 ND<0.01 ND<0.02 Page 9
sum{mx) o
-0.0222621
-0.0415304
-0.0589224
-0.0749949
-0.0899035
-0.103821
-0.116927
-0.129245
-0.140847
-0.151831
-0.162196
-0.171977
-0.181207
-0.189949
-0.198188
-0.205944
-0.213267
-0.220138
-0.226572
-0.232609
-0.238231
-0.243446
-0.248263
-0.252718
-0.256788
-0.26048
-0.263825
-0.266801
-0.269412
-0.271688
-0.273604
-0.275165
-0.276371
-0.277249
-0.277776
-0.277951
-0.277776
-0.277249
-0.276371
-0.275165
-0.273604
-0.271688
-0.269412
-0.266801
-0.263825
-0.26048 sum{ml\\2) o 4.956 8.6687 11.6935 14.2768 16.4994 18.4364 20.154 21.6715 23.0173 24.224 25.2982 26.255 27.1069 27.8712 28.55 29.1515 29.6877 30.1599 30.5738 30.9383 31.2543 31.5263 31.7584 31.9568 32.1224 32.2587 32.3706 32.4592 32.5274 32.5792 32.6159 32.6402 32.6548 32.6625 32.6653 32.6656 32.6659 32.6687 32.6764 32.6909 32.7153 32.752 32.8038 32.872 32.9606 33.0724 m(i) o
-2.22621
-1.92684
-1.7392
-1.60725
-1.49085
-1.39175
-1.31058
-1.23187
-1.16012
-1.09847
-1.03643
-0.97815
-0.923014
-0.874218
-0.823893
-0.775574
-0.732275
-0.687131
-0.643345
-0.603765
-0.56217
-0.521527
-0.481728
-0.445443
-0.40701
-0.369171
-0.334503
-0.297612
-0.26112
-0.227545
-0.191671
-0.156042
-0.12061
-0.0878447
-0.0526632
-0.0175476 0.0175476 0.0526632 0.0878447 0.12061 0.156042 0.191671 0.227545 0.26112 0.297612 0.334503 Shapiro-Francia Test of Normality Parameter: Nickel All Wells Normality Test of Parameter Concentrations Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Total Sample Size =72 i
x{i) o 0
1 0.01 2
0.01 3
0.01 4
0.01 5
0.01 6
0.01 7
0.01 8
0.01 9
0.01 10 0.01 11 0.01 12 0.01 13 0.01 14 0.01 15 0.01 16 0.01 17 0.01 18 0.01 19 0.01 20 0.01 21 0.01 22 0.01 23 0.01 24 0.01 25 0.01 26 0.01 27 0.01 28 0.01 29 0.01 30 0.01 31 0.01 32 0.01 33 0.01 34 0.01 35 0.01 36 0.01 37 0.01 38 0.01 39 0.01 40 0.01 41 0.01 42 0.01 43 0.01 44 0.01 45 0.01 46 0.01 Page 10
47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.034 0.369171 0.40701 0.445443 0.481728 0.521527 0.56217 0.603765 0.643345 0.687131 0.732275 0.775574 0.823893 0.874218 0.923014 0.97815 1.03643 1.09847 1.16012 1.23187 1.31058 1.39175 1.49085 1.60725 1.7392 1.92684 33.2087 33.3744 33.5728 33.8049 34.0769 34.3929 34.7574 35.1713 35.6435 36.1797 36.7812 37.46 38.2243 39.0762 40.033 41.1072 42.3138 43.6597 45.1772 46.8948 48.8318 51.0544 53.6377 56.6625 60.3752
-0.256788
-0.252718
-0.248263
-0.243446
-0.238231
-0.232609
-0.226572
-0.220138
-0.213267
-0.205944
-0.198188
-0.189949
-0.181207
-0.171977
-0.162196
-0.151831
-0.140847
-0.129245
-0.104608
-0.0783965
-0.0505616
-0.0207445 0.0114005 0.0461845 0.111697 Sample Standard Deviation =0.0099633 Numerator =0.0124762 Denominator = 0.425523 = 71 60.3752 W Statistic = 0.0293197 5% Critical value of 0.968 exceeds 0.0293197 Evidence of non-normality at 95% level of significance 1% Critical value of 0.956 exceeds 0.0293197 Evidence of non-normality at 99% level of significance Page 11
Kruskal-Wallis N~on*Parametric Test Parameter: Nickel Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Kruskal Wallis Ranks Background Wells WelllD Date GWA-15/MW-157/30/2002 9/24/2002 10/21/2002 -
12/3/2002 6124/2003 12/17/2003 6115/2004 12/28/2004 6114/2005 12/5/2005 6/5/2006 12/4/2006 Rank Sum = 462.5 Rank Mean = 38.5417 Result ND<0.01 ND<0.01 ND<0.01 ND<0.02 ND<0.01 ND<0.01 ND<0.01 ND<0.01 ND<0.01 ND<0.01 ND<0.01 0.089 Rank 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 72 Background Rank Sum =462.5 Background Rank Mean =38.5417 Compliance Wells WelllD Date GWA-7/MW-7 7/30/2002-9/24/2002 10/21/2002 12/3/2002 6/24/2003 12/17/2003 6/15/2004 12/28/2004 -
6/14/2005 1'2/6/2005 -
6/5/2006 -
1214/2006 -
Rank Sum = 426 Rank Mean = 35.5 GWB-6/MW-6 7/3012002 9/24/2002 10/21/2002 12/312002 6/24/2003 12/17/2003 6/15/2004 12/28/2004 6/13/2005 Result ND<0.01 ND<0.01 ND<0.01 ND<0.02 ND<0.01 ND<0.01 ND<0.01 ND<0.01 ND<0.01 ND<0.01 ND<0.01 ND<0.01 ND<0.01 ND<0.01 ND<0.01 ND<0.02 ND<0.01 ND<0.01 ND<0.01 ND<0.01 ND<0.01 Rank 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 35.5 Page 12
12/5/2005 ND<0.01 35.5 6/5/2006 ND<0.01 35.5 12/5/2006 ND<0.01 35.5 Rank Sum = 426 Rank Mean = 35.5 GWC-13/MW-137/30/2002 ND<0.01 35.5 9/24/2002 ND<0.01 35.5 10/21/2002 ND<0.01 35.5 12/3/2002 ND<0.02 35.5 6/24/2003 -
ND<0.01 35.5 12/17/2003 -
ND<0.01 35.5 6/15/2004 -
ND<0.01 35.5 12/28/2004 ND<0.01 35.5 6/13/2005 -
ND<0.01 35.5 12/6/2005 ND<0.01 35.5 6/5/2006 ND<0.01 35.5 12/4/2006 ND<0.01 35.5 Rank Sum = 426 Rank Mean = 35.5 GWC-14/MW-147/30/2002 ND<0.01 35.5 9/24/2002 -
ND<0.01 35.5 10/21/2002 ND<0.01 35.5 12/3/2002 ND<0.02 35.5 6/24/2003 ND<0.01 35.5 12/17/2003 0.034 71 Rank Sum = 248.5 Rank Mean = 41.4167 GWC-5/MW-5 7/30/2002 ND<0.01 35.5 9/24/2002 ND<0.01 35.5 10/21/2002 ND<0.01 35.5 12/3/2002 ND<0.02 35.5 6/24/2003 ND<0.01 35.5 12/17/2003 ND<0.01 35.5 6/15/2004 ND<0.01 35.5 12/28/2004 ND<0.01 35.5 6/13/2005 ND<0.01 35.5 12/6/2005 ND<0.01 35.5 6/5/2006 ND<0.01 35.5 12/4/2006 ND<0.01 35.5 Rank Sum = 426 Rank Mean = 35.5 GWC-17/MW-176/15/2005 ND<0.01 35.5 12/6/2005 ND<0.01 35.5 6/5/2006 ND<0.01 35.5 12/5/2006 ND<0.01 35.5 Rank Sum = 142 Rank Mean = 35.5 GWC-18/MW-186/15/2005 ND<0.01 35.5 Rank Sum = 35.5 Rank Mean = 35.5 GWB-16/MW-1612/5/2006 ND<0.01 35.5 Page 13
Rank Sum =35.5 Rank Mean = 35.5 Calculation Results:
Kruskal-WalHs H Statistic =0.568636 Kruskal-Wallis H Statistic (adjusted for tied non-detects) =7.01585 95% Confidence comparison value is 15.5073 at 8 degrees of freedom 0.568636 < 15.5073 indicating no significant group difference at 5% significance level 7.01585 < 15.5073 indicating no significant group difference at 5% significance level when adjusted for ties Page 14
Concentrations (mg/L)
Parameter: Zinc Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Total Samples: 72 Total Non-Detect: 46 Percent Non-Detects: 63.8889%
Total Background Samples: 12 There is 1 background well Well Samples NO Date Result Original GWA-15/MW-1512 8 (66.6667%)
7/30/2002 ND<0.01 ND<0.02 9/24/2002 ND<0.01 ND<0.02 10/21/2002 -
ND<0.01 ND<0.02 12/3/2002 ND<0.01 ND<0.02 6/24/2003 ND<0.01 ND<0.02 12/17/2003 ND<0.01 ND<0.02 6/15/2004 ND<0.01 ND<0.02 12/28/2004 ND<0.01 ND<0.02 6/14/2005 0.029 0.029 12/5/2005 0.042 0.042 6/5/2006 0.063 0.063 12/4/2006 0.316 0.316 There are 8 compliance wells Well Samples NO Date Result Original GWA-7/MW-7 12 8 (66.6667%)
7/30/2002 -
ND<0.01 ND<0.02 9/24/2002 ND<0.01 ND<0.02 10/21/2002 ND<0.01 ND<0.02 12/3/2002 ND<0.01 ND<0.02 6/24/2003 0.034 0.034 12/17/2003 0.023 0.023 6/1512004 ND<0.01 ND<0.02 12/28/2004 -
ND<0.01 ND<0.02 6/14/2005 ND<0.01 ND<0.02 12/6/2005 -
0.1425 0.1425 6/5/2006 -
0.375 0.375 12/4/2006 -
ND<0.01 ND<0.02 GWB-6/MW-6 12 9 (75%)
7/3012002 ND<0.01 ND<0.02 9/24/2002 ND<0.01 ND<0.02 10/21/2002 ND<0.01 ND<0.02 12/3/2002 ND<0.01 ND<0.02 6/24/2003 ND<0.01 ND<0.02 12/17/2003 ND<0.01 ND<0.02 6/15/2004 ND<0.01 ND<0.02 12/28/2004 ND<0.01 ND<0.02 6/13/2005 ND<0.01 ND<0.02 12/5/2005 0.02 0.02 6/512006 0.083 0.083 12/5/2006 0.028 0.028 GWC-13/MW-1312 4 (33.3333%)
7/30/2002 ND<0.01 ND<0.02 Page 15
9/24/2002 0.023 0.023 10/21/2002 0.027 0.027 12/312002 0.027 0.027 6/24/2003 -
ND<0.01 ND<0.02 12/17/2003 -
ND<0.01 ND<0.02 6/15/2004 -
ND<0.01 ND<0.02 12/28/2004 0.044 0.044 6/1312005 -
0.02 0.02 12/6/2005 0.194 0.194 6/5/2006 0.213 0.213 12/4/2006 0.055 0.055 GWC-14/MW-146 5 (83.3333%)
7/30/2002 ND<0.01 ND<0.02 9/24/2002 -
ND<0.01 ND<0.02 10/21/2002 ND<0.01 ND<0.02 12/3/2002 ND<0.01 ND<0.02 6/24/2003 ND<0.01 ND<0.02 12/17/2003 0.127 0.127 GWC-5/MW-5 12 8 (66.6667%)
7/30/2002 ND<0.01 ND<0.02 9/24/2002 ND<0.01 ND<0.02 10/21/2002 ND<0.01 ND<0.02 12/3/2002 ND<0.01 ND<0.02 6/24/2003 ND<0.01 ND<0.02 12/17/2003 0.032 0.032 6/1512004 ND<0.01 ND<0.02 12/28/2004 ND<0.01 ND<0.02 6/13/2005 ND<0.01 ND<0.02 1,2/6/2005 0.055 0.055 6/5/2006 0.1 0.1 1214/2006 0.062 0.062 GWC-17/MW-174 2 (50%)
6/15/2005 ND<0.01 ND<0.02 12/6/2005 0.096 0.096 6/5/2006 0.077 0.077 12/5/2006 ND<0.01 ND<0.02 GWC-18/MW-181 1 (100%)
6/15/2005 ND<0.01 ND<0.02 GWB-16/MW-161.
1 (100%)
12/5/2006 ND<0.01 ND<0.02 There is 1 unused well Well Samples NO Date Result Original EO-Blank 8
8 (100%)
6/24/2003 ND<0.01 ND<0.02 12/17/2003 ND<0.01 ND<0.02 6/15/2004 ND<0.01 ND<0.02 12/28/2004 -
ND<0.01 ND<0.02 6/15/2005 -
ND<0.01 ND<0.02 12/6/2005 ND<0.01 ND<0.02 6/6/2006 ND<0.01 ND<0.02 12/5/2006 ND<0.01 ND<0.02 Page 16
sum(mx) o
-0.0222621
-0.0415304
-0.0589224
-0.0749949
-0.0899035
-0.103821
-0.116927
-0.129245
-0.140847
-0.151831
-0.162196
-0.171977
-0.181207
-0.189949
-0.198188
-0.205944
-0.213267
-0.220138
-0.226572
-0.232609
-0.238231
-0.243446
-0.248263
-0.252718
-0.256788
-0.26048
-0.263825
-0.266801
-0.269412
-0.271688
-0.273604
-0.275165
-0.276371
-0.277249
-0.277776
-0.277951
-0.277776
-0.277249
-0.276371
-0.275165
-0.273604
-0.271688
-0.269412
-0.266801
-0.263825
-0.26048 sum(m A 2) o 4.956 8.6687 11.6935 14.2768 16.4994 18.4364 20.154 21.6715 23.0173 24.224 25.2982 26.255 27.1069 27.8712 28.55 29.1515 29.6877 30.1599 30.5738 30.9383 31.2543 31.5263 31.7584 31.9568 32.1224 32.2587 32.3706 32.4592 32.5274 32.5792 32.6159 32.6402 32.6548 32.6625 32.6653 32.6656 32.6659 32.6687 32.6764 32.6909 32.7153 32.752 32.8038 32.872 32.9606 33.0724 m(i) o
-2.22621
-1.92684
-1.7392
-1.60725
-1.49085
-1.39175
-1.31058
-1.23187
-1.16012
-1.09847
-1.03643
-0.97815
-0.923014
-0.874218
-0.823893
-0.775574
-0.732275
-0.687131
-0.643345
-0.603765
-0.56217
-0.521527
-0.481728
-0.445443
-0.40701
-0.369171
-0.334503
-0.297612
-0.26112
-0.227545
-0.191671
-0.156042
-0.12061
-0.0878447
-0.0526632
-0.0175476 0.0175476 0.0526632 0.0878447 0.12061 0.156042 0.191671 0.227545 0.26112 0.297612 0.334503 Shapiro-Francia Test of Normality Parameter: Zinc All Wells Normality Test of Parameter Concentrations Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Total Sample Size =72 i
x(i) o 0
1 0.01 2
0.01 3
0.01 4
0.01 5
0.01 6
0.01 7
0.01 8
0.01 9
0.01 10 0.01 11 0.01 12 0.01 13 0.01 14 0.01 15 0.01 16 0.01 17 0.01 18 0.01 19 0.01 20 0.01 21 0.01 22 0.01 23 0.01 24 0.01 25 0.01 26 0.01 27 0.01 28 0.01 29 0.01 30 0.01 31 0.01 32 0.01 33 0.01 34 0.01 35 0.01 36 0.01 37 0.01 38 0.01 39 0.01 40 0.01 41 0.01 42 0.01 43 0.01 44 0.01 45 0.01 46 0.01 Page 17
47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 0.02 0.02 0.023 0.023 0.027 0.027 0.028 0.029 0.032 0.034 0.042 0.044 0.055 0.055 0.062 0.063 0.077 0.083 0.096 0.1 0.127 0.1425 0.194 0.213 0.316 0.369171 0.40701 0.445443 0.481728 0.521527 0.56217 0.603765 0.643345 0.687131 0.732275 0.775574 0.823893 0.874218 0.923014 0.9'7815 1.03643 1.09847 1.16012 1.23187 1.31058 1.39175 1.49085 1.60725 1.7392 1.92684 33.2087 33.3744 33.5728 33.8049 34.0769 34.3929 34.7574 35.1713 35.6435 36.1797 36.7812 37.46 38.2243 39.0762 40.033 41.1072 42.3138 43.6597 45.1772 46.8948 48.8318 51.0544 53.6377 56.6625 60.3752
-0.253096
-0.244956
-0.234711
-0.223631
-0.20955
-0.194371
-0.177466
-0.158809
-0.136821
-0.111923
-0.0793493
-0.043098 0.00498398 0.0557498 0.116395 0.18169 0.266273 0.362562 0.480821 0.611879 0.788631 1.00108 1.31288 1.68333 2.29221 Sample Standard Deviation =0.0665935 Numerator = 5.25425 Denominator = 19.0099 = 7160.3752 W Statistic = 0.276395 5% Critical value of 0.968 exceeds 0.276395 Evidence of non-normality at 95% level of significance 1% Critical value of 0.956 exceeds 0.276395 Evidence of non-normality at 99% level of significance Page 18
Kruskal-Wallis Non-Parametric Test Parameter: Zinc Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Kruskal Wallis Ranks Background Wells WelllD Date Result Rank GWA-15/MW-157/30/2002 ND<0.01 23.5 9/24/2002 ND<0.01 23.5 10/21/2002 -
ND<0.01 23.5 12/3/2002 ND<0.01 23.5 6/24/2003 ND<0.01 23.5 12/17/2003 ND<0.01 23.5 6/15/2004 ND<0.01 23.5 12/28/2004 ND<0.01 23.5 6/14/2005 0.029 54 12/5/2005 0.042 57 6/5/2006 0.063 62 12/4/2006 0.316 71 Rank Sum = 432 Rank Mean = 36 Background Rank Sum = 432 Background Rank Mean = 36 Compliance Wells WelllD Date Result Rank GWA-7/MW-7 7/3012002 -
ND<0.01 23.5 9/24/2002 ND<0.01 23.5 10/21/2002 ND<0.01 23.5 12/3/2002 ND<0.01 23.5 6/24/2003 0.034 56 1211712003 0.023 49 6/15/2004 ND<0.01 23.5 12/28/2004 -
ND<0.01 23.5 6/14/2005 ND<0.01 23.5 12/6/2005 -
0.1425 68 6/5/2006 -
0.375 72 12/4/2006 -
ND<0.01 23.5 Rank Sum = 433 Rank Mean = 36.0833 GWB-6/MW-6 7/3012002 ND<0.01 23.5 9/24/2002 ND<0.01 23.5 10/21/2002 ND<0.01 23.5 12/3/2002 ND<0.01 23.5 6/24/2003 ND<0.01 23.5 12/17/2003 ND<0.01 23.5 6/15/2004 ND<0.01 23.5 12/28/2004 ND<0.01 23.5 6/13/2005 ND<0.01 23.5 Page 19
12/5/2005 0.02 47 6/5/2006 0.083 64 12/5/2006 0.028 53 Rank Sum =375.5 Rank Mean =31.2917 GWC-13/MW-137/30/2002 ND<0.01 23.5 9/24/2002 0.023 50 10/21/2002 0.027 51 12/3/2002 0.027 52 6/24/2003 -
ND<0.01 23.5 12/1712003 -
ND<0.01 23.5 6/15/2004 -
ND<0.01 23.5 12/28/2004 0.044 58 6/13/2005 -
0.02 48 12/6/2005 0.194 69 6/5/2006 0.213 70 12/4/2006 0.055 59 Rank Sum =551 Rank Mean =45.9167 GWC-14/MW-147/30/2002 ND<0.01 23.5 9/24/2002 -
ND<0.01 23.5 10/21/2002 ND<0.01 23.5 12/3/2002 ND<0.01 23.5 6/24/2003 ND<0.01 23.5 12/1712003 0.127 67 Rank Sum =184.5 Rank Mean =30.75 GWC-5/MW-5 7/30/2002 ND<0.01 23.5 9/24/2002 ND<0.01 23.5 10/21/2002 ND<0.01 23.5 12/3/2002 ND<0.01 23.5 6/24/2003 ND<0.01 23.5 12/17/2003 0.032 55 6/15/2004 ND<0.01 23.5 12/28/2004 ND<0.01 23.5 6/13/2005 ND<0.01 23.5 12/6/2005 0.055 60 6/5/2006 0.1 66 12/4/2006 0.062 61 Rank Sum =430 Rank Mean =35.8333 GWC-17/MW-176/15/2005 ND<0.01 23.5 12/6/2005 0.096 65 6/5/2006 0.077 63 1215/2006 ND<0.01 23.5 Rank Sum =175 Rank Mean =43.75 GWC-18/MW-186/15/2005 ND<0.01 23.5 Rank Sum =23.5 Rank Mean =23.5 GWB-16/MW-1612/5/2006 ND<0.01 23.5 Page 20
Rank Sum =23.5 Rank Mean = 23.5 Calculation Results:
Kruskal-Wallis H Statistic =4.90102 Kruskal-Wallis H Statistic (adjusted for tied non-detects) = 6.62934 95% Confidence comparison value is 15.5073 at 8 degrees of freedom 4.90102 < 15.5073 indicating no significant group difference at 5% significance level 6.62934 < 15.5073 indicating no significant group difference at 5% significance level when adjusted for ties Page 21
Concentrations (mg/L)
Parameter: Mercury Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Total Samples: 45 Total Non-Detect: 38 Percent Non-Detects: 84.4444%
Total Background Samples: 8 There is 1 background well Well Samples NO Date Result Original GWA-15/MW-158 7 (87.5%)
6/24/2003 ND<0.00025 ND<0.0005 12/17/2003 ND<0.00025 ND<0.0005 6/15/2004 ND<0.00025 ND<0.0005 12/28/2004 0.0004 0.0004 6/14/2005 ND<0.00025 ND<0.0005 12/5/2005 ND<0.00025 ND<0.0005 6/5/2006 ND<0.00025 ND<0.0005 12/4/2006 ND<0.00025 ND<0.0005 There are 8 compliance wells Well Samples NO Date Result Original GWC-13/MW-138 7 (87.5%)
6/24/2003 -
0.0005 0.0005 12/17/2003 -
ND<0.00025 ND<0.0005 6/15/2004 -
ND<0.00025 ND<0.0005 12/28/2004 ND<0.00025 ND<0.0005 6/13/2005 -
ND<0.00025 ND<0.0005 12/6/2005 ND<0.00025 ND<0.0005 6/5/2006 ND<0.00025 ND<0.0005 12/4/2006 ND<0.00025 ND<0.0005 GWC-14/MW-142 0(0%)
6/24/2003 0.0072 0.0072 12/17/2003 0.01 0.01 GWA-7/MW-7 7
4 (57.1429%)
12/17/2003 ND<0.00025 ND<0.0005 6/15/2004 0.0006 0.0006 12/28/2004 -
0.0013 0.0013 6/14/2005 ND<0.00025 ND<0.0005 12/6/2005 -
ND<0.00025 ND<0.0005 6/5/2006 -
ND<0.00025 ND<0.0005 12/4/2006 -
0.0012 0.0012 GWB-6/MW-6 7
7 (100%)
12/17/2003 ND<0.00025 ND<0.0005 6/15/2004 ND<0.00025 ND<0.0005 12/28/2004 ND<0.00025 ND<0.0005 6/13/2005 ND<0.00025 ND<0.0005 12/5/2005 ND<0.00025 ND<0.0005 6/5/2006 ND<0.00025 ND<0.0005 12/5/2006 ND<0.00025 ND<0.0005 GWC-5/MW-5 7
7 (100%)
12/17/2003 ND<0.00025 ND<0.0005 6/15/2004 ND<0.00025 ND<0.0005 12/28/2004 ND<0.00025 ND<0.0005 Page 22
6/13/2005 ND<0.00025 ND<0.0005 12/6/2005 ND<0.00025 ND<0.0005 6/5/2006 ND<0.00025 ND<0.0005 12/4/2006 ND<0.00025 ND<0.0005 GWC-17/MW-174 4 (100%)
6/15/2005 ND<0.00025 ND<0.0005 12/6/2005 ND<0.00025 ND<0.0005 6/5/2006 ND<0.00025 ND<0.0005 12/5/2006 ND<0.00025 ND<0.0005 GWC-18/MW-181 1 (100%)
6/15/2005 ND<0.00025 ND<0.0005 GWB-16/MW-161 1 (100%)
12/5/2006 ND<0.00025 ND<0.0005 There is 1 unused well Well Samples ND Date Result Original EO-Blank 8
8 (100%)
6/24/2003 ND<0.00025 ND<0.0005 12/17/2003 ND<0.00025 ND<0.0005 6/15/2004 ND<0.00025 ND<0.0005 12/28/2004 -
ND<0.00025 ND<0.0005 6/15/2005 -
ND<0.00025 ND<0.0005 12/6/2005 ND<0.00025 ND<0.0005 6/6/2006 ND<0.00025 ND<0.0005 12/5/2006 ND<0.00025 ND<0.0005 Page 23
Shapiro-Wilks Test of Normality Parameter: Mercury All Wells Normality Test of Parameter Concentrations Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL K =22; Samples =45 x{n-1 +1 )-x(i)a(n-i+1) i 1
2 3
4 5
6 7
8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 x(i) 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.0004 0.0005 0.0006 0.0012 0.0013 0.0072 0.01 x(n-i+1 )
0.01 0.0072 0.0013 0.0012 0.0006 0.0005 0.0004 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00025 0.00975 0.00695 0.00105 0.00095 0.00035 0.00025 0.00015 o
o o
o o
o o
o o
o o
o o
o o
o o
o o
o o
o o
o o
o o
o o
o o
-0.00015
-0.00025
-0.00035
-0.00095
-0.00105
-0.00695
-0.00975 Page 24 0.385 0.2651 0.2313 0.2065 0.1865 0.1695 0.1545 0.141 0.1286 0.1173 0.1062 0.0959 0.086 0.0775 0.0673 0.0584 0.0497 0.0412 0.0328 0.0245 0.0163 0.0081 b(i) 0.00375375 0.00184244 0.000242865 0.000196175 6.5275e-005 4.2375e-005 2.3175e-005 o
o o
o o
o o
o o
o o
o o
o o
Sum of b values== 0.00616606 Sample Standard Deviation== 0.00176565 W Statistic== 0.277175 5% Critical value of 0.945 exceeds 0.277175 Evidence of non-normality at 95% level of significance 1% Critical value of 0.926 exceeds 0.277175 Evidence of non-normality at 99% level of significance Page 25
Kruskal-Wallis Non-Parametric Test Parameter: Mercury Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Kruskal Wallis Ranks Background Wells WelllD Date GWA-15/MW-156/24/2003 12/17/2003 6/15/2004 12/28/2004 6/14/2005 12/5/2005 6/5/2006 12/4/2006 Rank Sum = 175.5 Rank Mean =21.9375 Result ND<0.00025 ND<O.00025 ND<0.00025 0.0004 ND<0.00025 ND<0.00025 ND<0.00025 ND<0.00025 Rank 19.5 19.5 19.5 39 19.5 19.5 19.5 19.5 Background Rank Sum =175.5 Background Rank Mean = 21.9375 Compliance WeUs WelllD Date GWC-13/MW-136/24/2003 -
12/17/2003 -
6/15/2004 -
12/28/2004 6/13/2005 -
12/6/2005 6/5/2006 12/4/2006 Rank Sum,; 176.5 Rank Mean =22.0625 GWC-14/MW-146/24/2003 12/17/2003 Rank Sum =89 Rank Mean =44.5 GWA-7/MW-7 12/17/2003 6/15/2004 12/28/2004 -
6/14/2005 12/6/2005 -
6/5/2006 -
12/4/2006 -
Rank Sum = 204 Rank Mean =29.1429 GWB-6/MW-6 1
12/17/2003 6/15/2004 Result 0.0005 ND<0.00025 ND<0.00025 ND<0.00025 ND<0.00025 ND<0.00025 ND<0.00025 ND<0.00025 0.0072 0.01 ND<0.00025 0.0006 0.0013 ND<0.00025 ND<0.00025 ND<0.00025 0.0012 ND<0.00025 ND<0.00025 Rank 40 19.5 19.5 19.5 19.5 19.5 19.5 19.5 44 45 19.5 41 43 19.5 19.5 19.5 42 19.5 19.5 Page 26
Critical Value 15.277 24.1551 15.8132 15.8132 15.8132 18.7104 32.4074 32.4074 12/28/2004 ND<0.00025 19.5 6/13/2005 ND<0.00025 19.5 12/5/2005 ND<0.00025 19.5 6/5/2006 ND<0.00025 19.5 12/5/2006 ND<0.00025 19.5 Rank Sum =136.5 Rank Mean =19.5 GWC-5/MW-5 12/17/2003 ND<0.00025 19.5 6/15/2004 ND<0.00025 19.5 12/28/2004 ND<0.00025 19.5 6/13/2005 ND<0.00025 19.5 12/6/2005 ND<0.00025 19.5 6/5/2006 ND<0.00025 19.5 12/4/2006 ND<0.00025 19.5 Rank Sum =136.5 Rank Mean =19.5 GWC-17/MW-176/15/2005 ND<0.00025 19.5 12/6/2005 ND<0.00025 19.5 6/5/2006 ND<0.00025 19.5 12/5/2006 ND<0.00025 19.5 Rank Sum =78 Rank Mean =19.5 GWC-18/MW-186/15/2005 ND<0.00025 19.5 Rank Sum =19.5 Rank Mean =19.5 GWB-16/MW-1612/5/2006 ND<0.00025 19.5 Rank Sum =19.5 Rank Mean =19.5 Calculation Results:
Kruskal-Wallis H Statistic = 8.40409 Kruskal-Wallis H Statistic (adjusted for tied non-detects) =21.118 95% Confidence comparison value is 15.5073 at 8 degrees of freedom 8.40409 < 15.5073 indicating no significant group difference at 5% significance level 21.118 > 15.5073 indicating a significant group difference at 5% significance level when adjusted for ties Individual Well Comparisons at 1%Significance Level per Comparison 1% Z score is 2.32634 Mean background rank is 21.9375 Well Mean Rank Dif from Bkg GWC-13/MW-1322.0625 0.125 GWC-14/MW-1444.5 22.5625 GWA-7/MW-7 29.1429 7.20536 GWB-6/MW-6 19.5
-2.4375 GWC-5/MW-5 19.5
-2.4375 GWC-17/MW-1719.5
-2.4375 GWC-18/MW-1819.5
-2.4375 GWB-16/MW-1619.5
-2.4375 Individual Well Comparisons at Groupwise 5% Significance Level (0.625% Significance Level per comparison)
Page 27
0.625% Z score is 2.51213 Mean background rank is 21.9375 Well Mean Rank Dif from Bkg GWC-13/MW-1322.0625 0.125 GWC-14/MW-1444.5 225625 GWA-7/MW-7 29.1429 7.20536 GWB-6/MW-6 19.5
-2.4375 GWC-5/MW-5 19.5
-2.4375 GWC-17/MW-1719.5
-2.4375 GWC-18/MW-1819.5
-2.4375 GWB-16/MW-1619.5
-2.4375 Critical Value 16.4971 26.0842 17.0761 17.0761 17.0761 20.2047 34.9956 34.9956 Page 28
Concentrations (J.lg/L)
Parameter: 1,1-Dichloroethane Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Total Samples: 72 Total Non-Detect: 55 Percent Non-Detects: 76.3889%
Total Background Samples: 12 There is 1 background well Well Samples ND Date Result Original GWA-15/MW-1512 12 (100%)
7/30/2002 ND<2.5 ND<5 9/24/2002 ND<2.5 ND<5 10/21/2002 -
ND<2.5 ND<5 12/3/2002 ND<2.5 ND<5 6/24/2003 ND<2.5 ND<5 12/17/2003 ND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 ND<2.5 ND<5 6/14/2005 ND<2.5 ND<5 12/5/2005 ND<2.5 ND<5 6/5/2006 ND<2.5 ND<5 12/4/2006 ND<2.5 ND<5 There are 8 compliance wells Well Samples ND Date Result Original GWA-7/MW-7 12 12 (100%)
7/30/2002 -
ND<2.5 ND<5 9/24/2002 ND<2.5 ND<5 10/21/2002 ND<2.5 ND<5 12/3/2002 ND<2.5 ND<5 6/24/2003 ND<2.5 ND<5 12/17/2003 ND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 -
ND<2.5 ND<5 6/14/2005 ND<2.5 ND<5 12/6/2005 -
ND<2.5 ND<5 6/5/2006 -
ND<2.5 ND<5 12/4/2006 -
ND<2.5 ND<5 GWB-6/MW-6 12 12 (100%)
7/30/2002 ND<2.5 ND<5 9/24/2002 ND<2.5 ND<5 10/21/2002 ND<2.5 ND<5 12/3/2002 ND<2.5 ND<5 6/24/2003 ND<2.5 ND<5 12/17/2003 ND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 ND<2.5 ND<5 6/13/2005 ND<2.5 ND<5 12/5/2005 ND<2.5 ND<5 6/5/2006 ND<2.5 ND<5 12/5/2006 ND<2.5 ND<5 GWC-13/MW-1312 1 (8.33333%)
7/30/2002 ND<2.5 ND<5 Page 29
9/24/2002 6
6 10/21/2002 6
6 12/3/2002 7
7 6/24/2003 -
9 9
12/17/2003 -
20.5 20.5 6/15/2004 -
18 18 12/28/2004 16 16 6/13/2005 -
15 15 12/6/2005 18 18 6/5/2006 15 15 12/4/2006 20 20 GWC-14/MW-146 0(0%)
7/30/2002 13 13 9/24/2002 -
21 21 10/21/2002 17 17 12/3/2002 16 16 6/24/2003 10 10 12/1712003 10 10 GWC-5/MW-5 12 12 (100%)
7/30/2002 ND<2.5 ND<5 9/24/2002 ND<2.5 ND<5 10/21/2002 ND<2.5 ND<5 12/3/2002 ND<2.5 ND<5 6/24/2003 ND<2.5 ND<5 12/17/2003 ND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 ND<2.5 ND<5 6/13/2005 ND<2.5 ND<5 12/6/2005 ND<2.5 ND<5 6/5/2006 ND<2.5 ND<5 12/4/2006 ND<2.5 ND<5 GWC-17/MW-174 4 (100%)
6/15/2005 ND<2.5 ND<5 12/6/2005 ND<2.5 ND<5 6/5/2006 ND<2.5 ND<5 12/5/2006 ND<2.5 ND<5 GWC-18/MW-181 1 (100%)
6/15/2005 ND<2.5 ND<5 GWB-16/MW-161.
1 (100%)
12/5/2006 ND<2.5 ND<5 There are 2 unused wells Well Samples ND Date Result Original EO-Blank 8
8 (100%)
6/24/2003 ND<2.5 ND<5 12/17/2003 ND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 -
ND<2.5 ND<5 6/15/2005 -
IND<2.5 ND<5 12/6/2005 IND<2.5 ND<5 6/6/2006 IND<2.5 ND<5 12/5/2006 iND<2.5 ND<5 Trip Blank 4
4 (100%)
12/17/2003 ND<2.5 ND<5 6/13/2005 IND<2.5 ND<5 12/5/2005 IND<2.5 ND<5 Page 30
12/4/2006 Page 31 ND<2.5 ND<5
sum(mx) o
-5.56552
-10.3826
-14.7306
-18.7487
-22.4759
-25.9552
-29.2317
-32.3113
-35.2116
-37.9578
-40.5489
-42.9943
-45.3018
-47.4874
-49.5471
-51.486
-53.3167
-55.0345
-56.6429
-58.1523
-59.5577
-60.8615
-62.0659
-63.1795
-64.197
-65.1199
-65.9562
-66.7002
-67.353
-67.9219
-68.4011
-68.7912
-69.0927
-69.3123
-69.444
-69.4878
-69.444
-69.3123
-69.0927
-68.7912
-68.4011
-67.9219
-67.353
-66.7002
-65.9562
-65.1199 sum(m A 2) o 4.956 8.6687 11.6935 14.2768 16.4994 18.4364 20.154 21.6715 23.0173 24.224 25.2982 26.255 27.1069 27.8712 28.55 29.1515 29.6877 30.1599 30.5738 30.9383 31.2543 31.5263 31.7584 31.9568 32.1224 32.2587 32.3706 32.4592 32.5274 32.5792 32.6159 32.6402 32.6548 32.6625 32.6653 32.6656 32.6659 32.6687 32.6764 32.6909 32.7153 32.752 32.8038 32.872 32.9606 33.0724 m(i) o
-2.22621
-1.92684
-1.7392
-1.60725
-1.49085
-1.39175
-1.31058
-1.23187
-1.16012
-1.09847
-1.03643
-0.97815
-0.923014
-0.874218
-0.823893
-0.775574
-0.732275
-0.687131
-0.643345
-0.603765
-0.56217
-0.521527
-0.481728
-0.445443
-0.40701
-0.369171
-0.334503
-0.297612
-0.26112
-0.227545
-0.191671
-0.156042
-0.12061
-0.0878447
-0.0526632
-0.0175476 0.0175476 0.0526632 0.0878447 0.12061 0.156042 0.191671 0.227545 0.26112 0.297612 0.334503 Shapiro-Francia Test of Normality Parameter: 1,1-Dichloroethane All Wells Normality Test of Parameter Concentrations Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Total Sample Size = 72 i
x(i) o 0
1 2.5 2
2.5 3
2.5 4
2.5 5
2.5 6
2.5 7
2.5 8
2.5 9
2.5 10 2.5 11 2.5 12 2.5 13 2.5 14 2.5 15 2.5 16 2.5 17 2.5 18 2.5 19 2.5 20 2.5 21 2.5 22 2.5 23 2.5 24 2.5 25 2.5 26 2.5 27 2.5 28 2.5 29 2.5 30 2.5 31 2.5 32 2.5 33 2.5 34 2.5 35 2.5 36 2.5 37 2.5 38 2.5 39 2.5 40 2.5 41 2.5 42 2.5 43 2.5 44 2.5 45 2.5 46 2.5 Page 32
47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 6
6 7
9 10 10 13 15 15 16 16 17 18 18 20 20.5 0.369171 0.40701 0.445443 0.481728 0.521527 0.56217 0.603765 0.643345 0.687131 0.732275 0.775574 0.823893 0.874218 0.923014 0.97815 1.03643 1.09847 1.16012 1.23187 1.31058 1.39175 1.49085 1.60725 1.7392 1.92684 33.2087 33.3744 33.5728 33.8049 34.0769 34.3929 34.7574 35.1713 35.6435 36.1797 36.7812 37.46 38.2243 39.0762 40.033 41.1072 42.3138 43.6597 45.1772 46.8948 48.8318 51.0544 53.6377 56.6625 60.3752
-64.197
-63.1795
-62.0659
-60.8615
-59.5577
-58.1523
-56.6429
-55.0345
-53.3167
-48.9231
-44.2696
-38.5024
-30.6344
-21.4043
-11.6228 1.85087 18.3279 35.7297 55.4396 76.4088 100.068 126.904 155.834 190.618 230.118 Sample Standard Deviation =5.46677 Numerator =52954.5 Denominator = 128109 = 7160.3752 W Statistic =0.413356 5% Critical value of 0.968 exceeds 0.413356 Evidence of non-normality at 95% level of significance 1% Critical value of 0.956 exceeds 0.413356 Evidence of non-normality at 99% level of significance Page 33
Kruskal-Wallis Non-Parametric Test Parameter: 1,1-Dichloroethane Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Kruskal Wallis Ranks Background Wells WelllD Date Result Rank GWA-15/MW-157/30/2002 ND<2.5 28 9/24/2002 ND<2.5 28 10/21/2002 -
ND<2.5 28 12/3/2002 ND<2.5 28 6/24/2003 ND<2.5 28 12/17/2003 ND<2.5 28 6/15/2004 ND<2.5 28 12/28/2004 ND<2.5 28 6/14/2005 ND<2.5 28 12/5/2005 ND<2.5 28 6/5/2006 ND<2.5 28 12/4/2006 ND<2.5 28 Rank Sum =336 Rank Mean =28 Background Rank Sum =336 Background Rank Mean =28 Compliance Wells WeUID Date
'Result Rank GWA-7/MW-7 7/30/2002 -
ND<2.5 28 9/24/2002 ND<2.5 28 10/21/2002 ND<2.5 28 12/3/2002 ND<2.5 28 6/24/2003 ND<2.5 28 12/17/2003 ND<2.5 28 6/15/2004 ND<2.5 28 12/28/2004 -
ND<2.5 28 6/14/2005 ND<2.5 28 12/6/2005 -
ND<2.5 28 6/5/2006 -
ND<2.5 28 12/4/2006 -
ND<2.5 28 Rank Sum =336 Rank Mean =28 GWB-6/MW-6 7/30/2002 ND<2.5 28 9/24/2002 ND<2.5 28 10/21/2002 ND<2.5 28 12/3/2002 ND<2.5 28 6/24/2003 ND<2.5 28 12/17/2003 ND<2.5 28 6/15/2004 ND<2.5 28 12/28/2004 ND<2.5 28 6/13/2005 ND<2.5 28 Page 34
12/5/2005 ND<2.5 28 6/5/2006 ND<2.5 28 12/5/2006 ND<2.5 28 Rank Sum = 336 Rank Mean = 28 GWC-13/MW-137/30/2002 ND<2.5 28 9/24/2002 6
56 10/21/2002 6
57 12/3/2002 7
58 6/24/2003 -
9 59 12/17/2003 -
20.5 71 6/15/2004 -
18 68 12/28/2004 16 65 6/13/2005 -
15 63 12/6/2005 18 69 6/5/2006 15 64 12/4/2006 20 70 Rank Sum = 728 Rank Mean = 60.6667 GWC-14/MW-147/30/2002 13 62 9/24/2002 -
21 72 10/21/2002 17 67 12/3/2002 16 66 6/24/2003 10 60 12/17/2003 10 61 Rank Sum = 388 Rank Mean = 64.6667 GWC-5/MW-5 7/30/2002 ND<2.5 28 9/24/2002 ND<2.5 28 10/21/2002 ND<2.5 28 12/3/2002 ND<2.5 28 6/24/2003 ND<2.5 28 12/17/2003 ND<2.5 28 6/15/2004 ND<2.5 28 12/28/2004 ND<2.5 28 6/13/2005 ND<2.5 28 12/6/2005 ND<2.5 28 6/5/2006 ND<2.5 28 12/4/2006 ND<2.5 28 Rank Sum = 336 Rank Mean = 28 GWC-17/MW-176/15/2005 ND<2.5 28 12/6/2005 ND<2.5 28 6/5/2006 ND<2.5 28 12/5/2006 ND<2.5 28 Rank Sum = 112 Rank Mean = 28 GWC-18/MW-186/15/2005 ND<2.5 28 Rank Sum = 28 Rank Mean = 28 GWB-16/MW-1612/5/2006 ND<2.5 28 Page 35
Rank Sum = 28 Rank Mean =28 Calculation Results:
Kruskal-Wallis H Statistic = 35.7763 Kruskal-Wallis H Statistic (adjusted for tied non-detects) =64.5417 95% Confidence comparison value is 15.5073 at 8 degrees of freedom 35.7763 > 15.5073 indicating a significant group difference at 5% significance leve'l 64.5417 > 15.5073 indicating a significant group difference at 5% significance level when adjusted for ties Critical Value 19.8763 19.8763 19.8763 24.3434 19.8763 28.1093 50.6748 50.6748 Dif from Bkg o
o 32.6667 366667 o
o o
o Individual Weill Comparisons at 1% Significance Level per Comparison 1% Z score is 2.32634 Mean background rank is 28 Well Mean Rank GWA-7/MW-7 28 GWB-6/MW-6 28 GWC-13/MW-1360.6667 GWC-14/MW-146.4.6667 GWC-5/MW-5 28 GWC-17/MW-1728 GWC-18/MW-1828 GWB-16/iMW-1628 Critical Value 21.4637 21.4637 21.4637 26.2875 21.4637 30.3542 54.7219 54.7219 Diffrom Bkg o
o 32.6667 36.6667 o
o o
o Individual Well Comparisons at Groupwise 5% Significance Level (0.625% Significance Level per comparison) 0.625% Z score is 2.51213 Mean background rank is 28 Well Mean Rank GWA-7/MW-7 28 GWB-6/MW-6 28 GWC-13/MW-1360.6667 GWC-14/MW-1464.6667 GWC-5/MW-5 28 GWC-17/MW-1728 GWC-18/MW-1828 GWB-16/MW-1628 Page 36
Concentrations (tJg/L)
Parameter: cis-1,2-Dichloroethene Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Total Samples: 72 Total Non-Detect: 58 Percent Non-Detects: 80.5556%
Total Background Samples: 12 There is 1 background well Well Samples ND Date Result Original GWA-15/MW-1512 12 (100%)
7/30/2002 ND<2.5 ND<5 9/24/2002 ND<2.5 ND<5 10/21/2002 -
ND<2.5 ND<5 12/3/2002 ND<2.5 ND<5 6/24/2003 ND<2.5 ND<5 12/17/2003 ND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 ND<2.5 ND<5 6/14/2005 ND<2.5 ND<5 12/5/2005 ND<2.5 ND<5 6/5/2006 ND<2.5 ND<5 12/4/2006 ND<2.5 ND<5 There are 8 compliance wells Well Samples ND Date Result Original GWA-7/MW-7 12 12 (100%)
7/30/2002 -
ND<2.5 ND<5 9/24/2002 ND<2.5 ND<5 10/21/2002 ND<2.5 ND<5 12/3/2002 ND<2.5 ND<5 6/24/2003 ND<2.5 ND<5 12/17/2003 ND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 -
ND<2.5 ND<5 6/14/2005 ND<2.5 ND<5 12/6/2005 -
ND<2.5 ND<5 6/5/2006 -
ND<2.5 ND<5 12/4/2006 -
ND<2.5 ND<5 GWB-6/MW-6 12 12 (100%)
7/30/2002 ND<2.5 ND<5 9/24/2002 ND<2.5 ND<5 10/21/2002 ND<2.5 ND<5 12/3/2002 ND<2.5 ND<5 6/24/2003 ND<2.5 ND<5 12/17/2003 ND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 ND<2.5 ND<5 6/13/2005 ND<2.5 ND<5 12/5/2005 ND<2.5 ND<5 6/5/2006 ND<2.5 ND<5 12/5/2006 ND<2.5 ND<5 GWC-13/MW-1312 4 (33.3333%)
7/30/2002 ND<2.5 ND<5 Page 37
9/24/2002 ND<2.5 ND<5 10/21/2002 ND<2.5 rND<5 12/3/2002 ND<2.5 ND<5 6/24/2003 -
6 6
12/17/2003 -
14 14 6/15/2004 -
9.5 9.5 12/28/2004 8
8 6/13/2005 -
8 8
12/6/2005 9
9 6/5/2006 8
8 12/4/2006 10 10 GWC-14/MW-146 0(0%)
7/30/2002 10 10 9/24/2002 -
18.5 18.5 10/21/2002 16 16 12/3/2002 19 19 6/24/2003 10 10 12/17/2003 17 17 GWC-5/MW-5 12 12 (100%)
7/30/2002 ND<2.5 ND<5 9/24/2002 ND<2.5 ND<5 10/21/2002 ND<2.5 ND<5 12/3/2002 ND<2.5 ND<5 6/24/2003 ND<2.5 ND<5 12/17/2003 rND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 ND<2.5 ND<5 6/13/2005 ND<2.5 ND<5 12/6/2005 ND<2.5 ND<5 6/5/2006 ND<2.5 ND<5 12/4/2006 ND<2.5 ND<5 GWC-17/MW-174 4 (100%)
6/15/2005 ND<2.5 ND<5 12/6/2005 ND<2.5 ND<5 6/5/2006 ND<2.5 ND<5 12/5/2006 ND<2.5 ND<5 GWC-18/MW-181 1 (100%)
6/15/2005 ND<2.5 ND<5 GWB-16/MW-161.
1 (100%)
12/5/2006 ND<2.5 ND<5 There are 2 unused wells Well Samples ND Date Result Original EO-Blank 8
8 (100%)
6/24/2003 ND<2.5 ND<5 12/17/2003 ND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 -
ND<2.5 ND<5 6/15/2005 -
ND<2.5 ND<5 12/6/2005 ND<2.5 ND<5 6/6/2006 ND<2.5 ND<5 12/5/2006 ND<2.5 ND<5 Trip Blank 4
4 (100%)
12/17/2003 ND<2.5 ND<5 6f1,3/2005 ND<2.5 ND<5 12/5/2005 ND<2.5 ND<5 Page 38
12/4/2006 Page 39 ND<2.5 ND<5
sum(mx) o
-5.56552
-10.3826
-14.7306
-18.7487
-22.4759
-25.9552
-29.2317
-32.3113
-35.2116
-37.9578
-40.5489
-42.9943
-45.3018
-47.4874
-49.5471
-51.486
-53.3167
-55.0345
-56.6429
-58.1523
-59.5577
-60.8615
-62.0659
-63.1795
-64.197
-65.1199
-65.9562
-66.7002
-67.353
-67.9219
-68.4011
-68.7912
-69.0927
-69.3123
-69.444
-69.4878
-69.444
-69.3123
-69.0927
-68.7912
-68.4011
-67.9219
-67.353
-66.7002
-65.9562
-65.1199 sum(mJ\\2) o 4.956 8.6687 11.6935 14.2768 16.4994 18.4364 20.154 21.671'5 23.0173 24.224 25.2982 26.255 27.1069 27.8712 28.55 29.1515 29.6877 30.1599 30.5738 30.9383 31.2543 31.5263 31.7584 31.9568 32.1224 32.2587 32.3706 32.4592 32.5274 32.5792 32.6159 32.6402 32.6548 32.6625 32.6653 32.6656 32.6659 32.6687 32.6764 32.6909 32.7153 32.752 32.8038 32.872 32.9606 33.0724 m(i) o
-2.22621
-1.92684
-1.7392
-1.60725
-1.49085
-1.391,75
-1.311058
-1.231'87
-1.16012
-1.09847
-1.03643
-0.97815
-0.923014
-0.874218
-0.823893
-0.775574
-0.732275
-0.687131
-0.643345
-0.603765
-0.56217
-0.521527
-0.481728
-0.445443
-0.40701
-0.369171
-0.334503
-0.297612
-0.26112
-0.227545
-0.191671
-0.156042
-0.12061
-0.0878447
-0.0526632
-0.0175476 0.0175476 0.0526632 0.0878447 0.12061 0.156042 0.191671 0.227545 0.261i12 0.297612 0.334503 Shapiro-Francia Test of Normality Parameter: cis-1,2-Dichloroethene All Wells Normality Test of Parameter Concentrations Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Total Sample Size =72 i
x(i) o 0
1 2.5 2
2.5 3
2.5 4
2.5 5
2.5 6
2.5 7
2.5 8
2.5 9
2.5 10 2.5 11 2.5 12 2.5 13 2.5 14 2.5 15 2.5 16 2.5 17 2.5 18 2.5 19 2.5 20 2.5 21 2.5 22 2.5 23 2.5 24 2.5 25 2.5 26 2.5 27 2.5 28 2.5 29 2.5 30 2.5 31 2.5 32 2.5 33 2.5 34 2.5 35 2.5 36 2.5 37 2.5 38 2.5 39 2.5 40 2.5 41 2.5 42 2.5 43 2.5 44 2.5 45 2.5 46 2.5 Page 40
47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 6
8 8
8 9
9.5 10 10 10 14 16 17 18.5 0.369171 0.40701 0.445443 0.481728 0.521527 0.56217 0.603765 0.643345 0.687131 0.732275 0.775574 0.823893 0.874218 0.923014 0.97815 1.03643 1.09847 1.16012 1.23187 1.31058 1.39175 1.49085 1.60725 1.7392 1.92684 33.2087 33.3744 33.5728 33.8049 34.0769 34.3929 34.7574 35.1713 35.6435 36.1797 36.7812 37.46 38.2243 39.0762 40.033 41.1072 42.3138 43.6597 45.1772 46.8948 48.8318 51.0544 53.6377 56.6625 60.3752
-64.197
-63.1795
-62.0659
-60.8615
-59.5577
-58.1523
-56.6429
-55.0345
-53.3167
-51.486
-49.5471
-47.4874
-42.242
-34.8579
-27.0327
-18.7413
-8.85504 2.1661 14.4847 27.5905 41.508 62.3799 88.0959 117.662 153.309 Sample Standard Deviation = 4.09129 Numerator = 23503.6 Denominator =71752.6 =71 60.3752 W Statistic = 0.327565 5% Critical value of 0.968 exceeds 0.327565 Evidence of non-normality at 95% level of significance 1% Critical value of 0.956 exceeds 0.327565 Evidence of non-normality at 99% level of significance Page 41
Kruskal-Wallis Non-Parametric Test Parameter: cis-1,2-Dichloroethene Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Kruskal Wallis Ranks Background Wells WelllD Date GWA-15/MW-157/30/2002 9/24/2002 10/21/2002 -
12/312002 6124/2003 12/17/2003 6115/2004 12/28/2004 611412005 12/5/2005 61512006 1214/2006 Rank Sum =354 Rank Mean = 29.5 Background Rank Sum =354 Background Rank Mean =29.5 Compliance Wells WelllD Date GWA-7/MW-7 7/3012002 -
9/24/2002 10/21/2002 12/312002 6124/2003 12/17/2003 6115/2004 12/28/2004 -
611412005 12/6/2005 -
61512006 -
1214/2006 -
Rank Sum = 354 Rank Mean = 29.5 GWB-6/MW-6 7/3012002 9/24/2002 10/21/2002 12/312002 6124/2003 12/17/2003 611512004 12/28/2004 611312005 Result ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 Result ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 ND<2.5 Rank 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 Rank 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 29.5 Page 42
12/5/2005 ND<2.5 29.5 6/5/2006 ND<2.5 29.5 12/5/2006 ND<2.5 29.5 Rank Sum =354 Rank Mean =29.5 GWC-13/MW-137/30/2002 ND<2.5 29.5 9/24/2002 ND<2.5 29.5 10/21/2002 ND<2.5 29.5 12/3/2002 ND<2.5 29.5 6/24/2003 -
6 59 12/17/2003 -
14 68 611512004 -
9.5 64 12/28/2004 8
60 611312005 -
8 61 12/6/2005 9
63 61512006 8
62 1214/2006 10 65 Rank Sum =620 Rank Mean =51.6667 GWC-14/MW-147/30/2002 10 66 9/24/2002 -
18.5 71 10/21/2002 16 69 12/312002 19 72 6124/2003 10 67 12/17/2003 17 70 Rank Sum =415 Rank Mean =69.1667 GWC-5/MW-5 7/3012002 ND<2.5 29.5 9/24/2002 ND<2.5 29.5 10/21/2002 ND<2.5 29.5 12/3/2002 ND<2.5 29.5 6/24/2003 ND<2.5 29.5 12/17/2003 ND<2.5 29.5 6/15/2004 ND<2.5 29.5 12/28/2004 ND<2.5 29.5 6/13/2005 ND<2.5 29.5 12/6/2005 ND<2.5 29.5 6/5/2006 ND<2.5 29.5 12/4/2006 ND<2.5 29.5 Rank Sum =354 Rank Mean =29.5 GWC-17/MW-176/15/2005 ND<2.5 29.5 12/6/2005 ND<2.5 29.5 6/5/2006 ND<2.5 29.5 12/5/2006 ND<2.5 29.5 Rank Sum =118 Rank Mean =29.5 GWC-18/MW-186/15/2005 ND<2.5 29.5 Rank Sum:: 29.5 Rank Mean:: 29.5 GWB-16/MW-1612/5/2006 ND<2.5 29.5 Page 43
Rank Sum =29.5 Rank Mean = 29.5 Calculation Results:
Kruskal-Wallis H Statistic =26.9612 Kruskal-Wallis H Statistic (adjusted for tied non.detects) = 56.4853 95% Confidence comparison value is 15.5073 at 8 degrees of freedom 26.9612> 15.5073 indicating a significant group difference at 5% significance level 56.4853 > 15.5073 indicating a significant group difference at 5% significance level when adjusted for ties Critical Value 19.8763 19.8763 19.8763 24.3434 19.8763 28.1093 50.6748 50.6748 Dif from Bkg o
o 22.1667 39.6667 o
o o
o Individual Wel'l Comparisons at 1% Significance Leve,l per Comparison 1% Z score is 2.32634 Mean background rank is 29.5 Well Mean Rank GWA-7/MW-7 29.5 GWB-6/MW-6 29.5 GWC-13/MW-1351.6667 GWC-14/MW-1469.1667 GWC-5/MW-5 29.5 GWC-17/MW-1729.5 GWC-18/MW-1829.5 GWB-16/MW-1629.5 Critical Value 21.4637 21.4637 21.4637 26.2875 21.4637
. 30.3542 54.7219 54.7219 Diffrom Bkg o
o 22.11667 39.6667 o
o o
o Individual Well Comparisons at Groupwise 5% Significance Level (0.625% Significance Level per comparison) 0.625% Z score is 2.51213 Mean background rank is 29.5 Well Mean Rank GWA-7/MW-7 29.5 GWB-6/MW-6 29.5 GWC-13/MW-1351.6667 GWC-14/MW-1469.1667 GWC-5/MW-5 29.5 GWC-17/MW-1729.5 GWC-18/MW-1829.5 GWB-16/MW-1629.5 Page 44
Concentrations (fJg/L)
Parameter: Trichlorofluoromethane Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Total Samples: 72 Total Non-Detect: 43 Percent Non-Detects: 59.7222%
Total Background Samples: 12 There is 1 background well Well Samples ND Date Result Original GWA-15/MW-1512 12 (100%)
7/30/2002 ND<2.5 ND<5 9/24/2002 ND<2.5 ND<5 10/21/2002 -
ND<2.5 ND<5 12/3/2002 ND<2.5 ND<5 6/24/2003 ND<2.5 ND<5 12/17/2003 ND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 ND<2.5 ND<5 6/14/2005 ND<2.5 ND<5 12/5/2005 ND<2.5 ND<5 6/5/2006 ND<2.5 ND<5 12/4/2006 ND<2.5 ND<5 There are 8 compliance wells Well Samples ND Date Result Original GWA-7/MW-7 12 0(0%)
7/3012002 -
184.5 184.5 9/24/2002 32 32 10/21/2002 221 221 12/3/2002 210 210 6/24/2003 23 23 12/17/2003 34 34 6115/2004 46 46 12/28/2004 -
144 144 6/14/2005 22 22 12/6/2005 -
86.5 86.5 6/512006 -
80 80 1214/2006 -
155.5 155.5 GWB-6/MW-6 12 12 (100%)
7/30/2002 ND<2.5 ND<5 9/24/2002 ND<2.5 ND<5 10/21/2002 ND<2.5 ND<5 12/3/2002 ND<2.5 ND<5 6/24/2003 ND<2.5 ND<5 12/17/2003 ND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 ND<2.5 ND<5 6/13/2005 ND<2.5 ND<5 12/5/2005 ND<2.5 ND<5 6/5/2006 ND<2.5 ND<5 12/5/2006 ND<2.5 ND<5 GWC-13/MW-1312 0(0%)
7/30/2002 300 300 Page 45
9/24/2002 381 381 10/21/2002 348 348 12/312002 391 391 6/24/2003 -
44 44 1211712003 -
99.5 99.5 6/15/2004 -
127 127 12/28/2004 81 81 611312005 -
45.3333 45.3333 12/6/2005 60 60 61512006 92 92 1214/2006 104 104 GWC-14/MW-146 1 (16.6667%)
7/30/2002 43 43 9/24/2002 -
47.5 47.5 10/21/2002 31 31 12/312002 27 27 6124/2003 5
5 12/17/2003 ND<2.5 ND<5 GWC-5/MW-5 12 12 (100%)
7/30/2002 ND<2.5 ND<5 9/24/2002 ND<2.5 ND<5 10/21/2002 ND<2.5 ND<5 12/3/2002 ND<2.5 ND<5 6/24/2003 ND<2.5 ND<5 12/17/2003 ND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 ND<2.5 ND<5 6/1 13/2005 ND<2.5 ND<5 12/6/2005 ND<2.5 ND<5 6/5/2006 ND<2.5 ND<5 12/4/2006 ND<2.5 ND<5 GWC-17/MW-174 4 (100%)
6/15/2005 ND<2.5 ND<5 12/6/2005 ND<2.5 ND<5 6/5/2006 ND<2.5 ND<5 12/5/2006 ND<2.5 ND<5 GWC-18/MW-181 1 (100%)
6/15/2005 ND<2.5 ND<5 GWB-16/MW-161.
1 (100%)
12/5/2006 ND<2.5 ND<5 There are 2 unused wells Well Samples ND Date Result Original EQ-Blank 8
8 (100%)
6/24/2003 ND<2.5 ND<5 12/17/2003 ND<2.5 ND<5 6/15/2004 ND<2.5 ND<5 12/28/2004 -
ND<2.5 ND<5 6/15/2005 -
ND<2.5 ND<5 12/6/2005 ND<2.5 ND<5 6/6/2006 ND<2.5 ND<5 12/5/2006 ND<2.5 ND<5 Trip Blank 4
4 (100%)
12/17/2003 ND<2.5 ND<5 6/13/2005 NO<2.5 ND<5 12/5/2005 ND<2.5 ND<5 Page 46
Page 47 NO<2.5 NO<5
sum(mx) o
-5.56552
-10.3826
-14.7306
-18.7487
-22.4759
-25.9552
-29.2317
-32.3113
-35.2116
-37.9578
-40.5489
-42.9943
-45.3018
-47.4874
-49.5471
-51.486
-53.3167
-55.0345
-56.6429
-58.1523
-59.5577
-60.8615
-62.0659
-63.1795
-64.197
-65.1199
-65.9562
-66.7002
-67.353
-67.9219
-68.4011
-68.7912
-69.0927
-69.3123
-69.444
-69.4878
-69.444
-69.3123
-69.0927
-68.7912
-68.4011
-67.9219
-67.353
-66.0474
-59.5
-51.8064 sum(m A 2) o 4.956 8.6687 11.6935 14.2768 16.4994 18.4364 20.154 21.6715 23.0173 24.224 25.2982 26.255 27.1069 27.8712 28.55 29.1515 29.6877 30.1599 30.5738 30.9383 31.2543 31.5263 31.7584 31.9568 32.1224 32.2587 32.3706 32.4592 32.5274 32.5792 32.6159 32.6402 32.6548 32.6625 32.6653 32.6656 32.6659 32.6687 32.6764 32.6909 32.7153 32.752 32.8038 32.872 32.9606 33.0724 m(i) o
-2.22621
-1.92684
-1.7392
-1.60725
-1.49085
-1.39175
-1.31058
-1.23187
-1.16012
-1.09847
-1.03643
-0.97815
-0.923014
-0.874218
-0.823893
-0.775574
-0.732275
-0.687131
-0.643345
-0.603765
-0.56217
-0.521527
-0.481728
-0.445443
-0.40701
-0.369171
-0.334503
-0.297612
-0.26112
-0.227545
-0.191671
-0.156042
-0.12061
-0.0878447
-0.0526632
-0.0175476 0.0175476 0.0526632 0.0878447 0.12061 0.156042 0.191671 0.227545 0.26112 0.297612 0.334503 Shapiro-Francia Test of Normality Parameter: Trichlorofluoromethane All Wells Normality Test of Parameter Concentrations Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Total Sample Size =72 i
x(i) o 0
1 2.5 2
2.5 3
2.5 4
2.5 5
2.5 6
2.5 7
2.5 8
2.5 9
2.5 10 2.5 11 2.5 12 2.5 13 2.5 14 2.5 15 2.5 16 2.5 17 2.5 18 2.5 19 2.5 20 2.5 21 2.5 22 2.5 23 2.5 24 2.5 25 2.5 26 2.5 27 2.5 28 2.5 29 2.5 30 2.5 31 2.5 32 2.5 33 2.5 34 2.5 35 2.5 36 2.5 37 2.5 38 2.5 39 2.5 40 2.5 41 2.5 42 2.5 43 2.5 44 5
45 22 46 23 Page 48
47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 27 31 32 34 43 44 45.3333 46 47.5 60 80 81 86.5 92 99.5 104 127 144 155.5 184.5 210 221 300 348 381 0.369171 0.40701 0.445443 0.481728 0.521527 0.56217 0.603765 0.643345 0.687131 0.732275 0.775574 0.823893 0.874218 0.923014 0.97815 1.03643 1.09847 1.16012 1.23187 1.31058 1.39175 1.49085 1.60725 1.7392 1.92684 33.2087 33.3744 33.5728 33.8049 34.0769 34.3929 34.7574 35.1713 35.6435 36.1797 36.7812 37.46 38.2243 39.0762 40.033 41.1072 42.3138 43.6597 45.1772 46.8948 48.8318 51.0544 53.6377 56.6625 60.3752
-41.8388
-29.2215
-14.9673 1.41146 23.8371 48.5726 75.9433 105.537 138.176 182.112 244.158 310.894 386.513 471.431 568.757 676.546 816.051 983.109 1174.66 1416.47 1708.73 2038.21 2520.39 3125.63 3859.75 Sample Standard Deviation = 91.0457 Numerator = 1.48977e+007 Denominator = 3.55333e+007 = 71 60.3752 W Statistic = 0.41926 5% Critical value of 0.968 exceeds 0.41926 Evidence of non-normality at 95% level of significance 1% Critical value of 0.956 exceeds 0.41926 Evidence of non-normality at 99% level of significance Page 49
Kruskal-Wallis Non-Parametric Test Parameter: Trichlorofluoromethane Original Data (Not Transformed)
Non-Detects Replaced with 1/2 DL Kruskal Wallis Ranks Background Wells WelllD IDate Result Rank GWA-15/MW-157/30/2002 ND<2.5 22 9/24/2002 ND<2.5 22 10/21/2002 -
ND<2.5 22 12/3/2002 ND<2.5 22 6/24/2003 ND<2.5 22 12/107/2003 ND<2.5 22 6/'15/2004 ND<2.5 22 12/28/2004 ND<2.5 22 6/14/2005 ND<2.5 22 12/5/2005 ND<2.5 22 6/5/2006 ND<2.5 22 12/4/2006 ND<2.5 22 Rank Sum =264 Rank Mean =22 Background Rank Sum =264 Background Rank Mean =22 Compliance Wells Wel'IID Date Result Rank GWA-7/MW-7 7/30/2002 -
184.5 66 9/24/2002 32 49 10/21/2002 221 68 12/3/2002 210 67 6/24/2003 23 46 12/17/2003 34 50 6/15/2004 46 54 12/28/2004 -
144 64 6/14/2005 22 45 12/6/2005 -
86.5 59 6/5/2006 -
80 57 12/4/2006 -
155.5 65 Rank Sum =690 Rank Mean =57.5 GWB-6/MW-6 7/30/2002 ND<2.5 22 9/24/2002 ND<2.5 22 10/21/2002 ND<2.5 22 12/3/2002 ND<2.5 22 6/24/2003 ND<2.5 22 12/17/2003 ND<2.5 22 6/15/2004 ND<2.5 22 12/28/2004 ND<2.5 22 6/13/2005 ND<2.5 22 Page 50
12/5/2005 ND<2.5 22 6/5/2006 ND<2.5 22 12/5/2006 ND<2.5 22 Rank Sum =264 Rank Mean =22 GWC-13/MW-137/30/2002 300 69 9/24/2002 381 71 10/21/2002 348 70 12/312002 391 72 6/24/2003 -
44 52 12/17/2003 -
99.5 61 6/1512004 -
127 63 12/28/2004 81 58 611312005 -
45.3333 53 12/6/2005 60 56 61512006 92 60 1214/2006 104 62 Rank Sum =747 Rank Mean =62.25 GWC-14/MW-147/30/2002 43 51 9/24/2002 -
47.5 55 10/21/2002 31 48 12/312002 27 47 6124/2003 5
44 12/17/2003 ND<2.5 22 Rank Sum =267 Rank Mean =44.5 GWC-5/MW-5 7/3012002 ND<2.5 22 9/24/2002 ND<2.5 22 10/21/2002 ND<2.5 22 12/3/2002 ND<2.5 22 6/24/2003 ND<2.5 22 12/17/2003 ND<2.5 22 6/15/2004 ND<2.5 22 12/28/2004 ND<2.5 22 6/13/2005 ND<2.5 22 12/6/2005 ND<2.5 22 6/5/2006 ND<2.5 22 12/4/2006 ND<2.5 22 Rank Sum =264 Rank Mean =22 GWC-17/MW-176/15/2005 ND<2.5 22 12/6/2005 ND<2.5 22 6/5/2006 ND<2.5 22 12/5/2006 ND<2.5 22 Rank Sum =88 Rank Mean =22 GWC-18/MW-186/15/2005 ND<2.5 22 Rank Sum =22 Rank Mean =22 GWB-16/MW-1612/5/2006 ND<2.5 22 Page 51
Rank Sum = 22 Rank Mean = 22 Calculation Results:
Kruskal-Wallis H Statistic = 51.286 Kruskal-Wallis H Statistic (adjusted for tied non-detects) = 65.1614 95% Confidence comparison value is 15.5073 at 8 degrees of freedom 51.286> 15.5073 indicating a significant group difference at 5% significance level 65.1614 > 15.5073 indicating a significant group difference at 5% significance level when adjusted for ties Critical Value 19.8763 19.8763 19.8763 24.3434 19.8763 28.1093 50.6748 50.6748 Dif from Bkg 35.5 o
40.25 22.5 o
o o
o Individual WeU Comparisons at 1% Significance Level per Comparison 1% Z score is 2.32634 Mean background rank is 22 Well Mean Rank GWA-7/MW-7 57.5 GWB-6/MW-6 22 GWC-13/MW*1362.25 GWC-14/MW-1444.5 GWC-5/MW-5 22 GWC-17/MW-1722 GWC-18/MW-1822 GWB-16/MW-1622 Critical Value 21.4637 21.4637 21.4637 26.2875 21.4637 30.3542 54.7219 54.7219 Dif from Bkg 35.5 o
40.25 22.5 o
o o
o Individual Well Comparisons at Groupwise 5% Significance Level (0.625% Significance Level per comparison) 0.625% Z score is 2.51213 Mean background rank is 22 Well Mean Rank GWA-7/MW-7 57.5 GWB-6/MW-6 22 GWC-13/MW-1362.25 GWC-14/MW-1444.5 GWC-5/MW-5 22 GWC-17/MW-1722 GWC-18/MW-1822 GWB-16/MW-1622 Page 52

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