B08_22R0022_At9_Hydrogeologic_Report.pdf

SUBMITTED TO:

SEH Engineers, Inc.

2000 South Colorado Blvd.

Suite 600 Denver, CO 80222-7938

BY:

Shannon & Wilson 400 N 34th Street, Suite 100 Seattle, WA 98103

(206)-632-8020 www.shannonwilson.com

HYDROGEOLOGIC REPORT

BLM - La Posa Plains

QUARTZSITE, ARIZONA

January 4, 2021 Shannon & Wilson No: 103528-001

BLM - La Posa Plains Hydrogeologic Report

103528-001 January 4, 2021 ii

EXECUTIVE SUMMARY

SEH Engineers, Inc. contacted Shannon & Wilson to assist with a supplementing the water available to the La Posa Plains, Tyson Wash RV camp which is located on Bureau of Land Management (BLM) property located roughly 125 miles west of Phoenix, AZ (Figures 1 & 2).

Our efforts included the drilling, construction, and capacity testing of one well, advanced to approximately 680 feet deep. We performed visual descriptions of retrieved cuttings samples from the boring.

Based on the results of our field efforts, we offer the following observations and conclusions:

The new well was drilled to 680 feet below ground surface (bgs), using the air rotary method. The well was constructed using 8-inch steel casing from 2.5-ft above ground surface (ags) to 560 ft-bgs. It includes a surface seal (8-inch-diameter steel casing cemented in place to 60 feet bgs, within a 12-inch-diameter borehole) and an 8-inch-diameter steel liner installed from +1.5 ft-ags to 560 ft-bgs. The 8-inch casing has a manufactured .040-slot screen from 520 to 480 ft bgs. The manufactured screen was made by Johnson Screens™.

The static water level at the time of testing was 394.4 ft-bgs.

Analysis of the previously run 24-hour pumping test by Azca Drilling, Inc. indicated a maximum drawdown of 40 feet at 15 to 18 gallons per minute (gpm) and a theoretical specific capacity between 0.375 and 0.45 gallons per minute per foot of drawdown (gpm/ft).

24-hour pumping rate conducted by Shannon & Wilson yielded a constant pumping rate of 17 gpm with maximum recorded drawdown of 48.6 feet, a specific capacity of 0.35.

103528-001 January 4, 2021 iii

CO

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CONTENTS

1 Introduction

2 Site Description

3 Well Drilling, Installation, and Development

3.1 Well Drilling

3.2 Well Installation and Development

3.3 Stepped-Rate Pumping Test

3.4 Initial Pumping Test

3.5 24-Hour Pumping Test

4 Water Quality Testing

4.1 Water Quality Testing Results

4.2 Hydrogeologic Conditions and Recommendations

5 Limitations

6 References

Exhibits Exhibit 3-1: Air Rotary Drill Rig Exhibit 3-2: Pumping Test Setup Exhibit 4-1: Table Summarizing Water Quality Results

Figures Figure 1: Site Location Plan Figure 2: Site Vicinity Plan Figure 3: Constant Rate Pumping Test Plot Figure 4: Azca Constant Rate Plot Figure 5: S&W Constant Rate Plot

Appendices Appendix A: Field Explorations Important Information Appendix B: Test America Analysis Laboratory Report

103528-001 January 4, 2021

1 INTRODUCTION

This report presents our hydrogeologic observations and conclusions for the drilling, construction, and testing of a new source well for the La Posa Plains, Tyson Wash RV Camping Grounds within Bureau of Land Management (BLM) land located off State Route 95, Quartzsite, Arizona. The Site is shown in relation to surrounding features on the Vicinity Map, Figures 1 & 2.

The purpose of this study was to design, install, and capacity-test a production or water supply well at the Site. This report summarizes the subsurface hydrogeologic conditions encountered at the new well. Our scope of services included:

Drilling and designing a new well capable of providing water to the Tyson Wash RV Camping Grounds.

Performing a capacity (stepped-rate pumping) test on the new well.

Performing a 24-hour aquifer stress (pumping) test.

Collect water quality samples for laboratory testing.

2 SITE DESCRIPTION

The Site is in La Paz County, about 125 miles west of Phoenix, AZ and roughly 17 miles east of the Colorado River off State Route 95. After consultation with the BLM, and Azca Drilling, Shannon & Wilson selected the location for the new source well (Figure 1). The project site is in the broad basin of Tyson Wash at the northern end of the La Posa plain; in southwestern Arizona, between the Plomosa Mountains on the east and the Dome Rock Mountains on the west.

The Site is undeveloped, consisting of unpaved roads and trails. At the site, subsurface soils consist of two main units. From the ground surface to a depth ranging between 60 to 70 ft-bgs, soils consist of interbedded layers of well-cemented gravels, sand, silt, and clay. The upper 20 to 25 feet of this unit generally contain silty sand and silty gravel.

According to topographic mapping available at the U.S. Geological Survey topoView website (https://ngmdb.usgs.gov/topoview/), the Site grade is approximately 990 feet.

Based on this information and using cellphone derived elevation data, we estimated an approximate grade elevation of 920 feet.

https://ngmdb.usgs.gov/topoview/

103528-001 January 4, 2021

3 WELL DRILLING, INSTALLATION, AND DEVELOPMENT

3.1 Well Drilling

Our subcontracted driller was Azca Drilling, Inc., based in Ehrenberg, Arizona. Azca drilled the new source well using the mud rotary method and the well was developed with a combination of swabbing, bailing, and airlifting. The boring was drilled on the Site between March 22 and May 31, 2020. Azca used American-made steel to construct the well, advancing the borehole with a truck-mounted, Epiroc DR rig (Exhibit 3-1).

Exhibit 3-1: Air Rotary Drill Rig, facing west.

The only drilling additive used was Aquaclear™ PFD with water. Aquaclear™ PFD is an environmentally friendly foaming solution that helps bring up the drill cuttings produced during drilling activities to the surface. During drilling, our representative collected drill cuttings samples on approximately 10-foot intervals to facilitate our interpretation of subsurface conditions.

103528-001 January 4, 2021

The well was drilled through mostly sedimentary layers, alternating between layers of gravels, sands, silts, and clays. The formations drilled through were likely; Tyson Wash deposits, Colorado River deposits, and Bouse Formation deposits. Water was first noted on drillers logs to be around 390 ft-bgs. Appendix A presents the Well Report that Azca Drilling submitted to the Arizona Department of Water Resources; it includes his interpretation of the stratigraphy, along with the well construction details.

Based on the Well Report and our collected samples and observations, as well as using published references for the geology in the area (House et. al, 2008), we interpret the subsurface conditions as follows:

0 to 50 feet: Active Tyson Wash deposits, Qyct : Deposits consisting of unconsolidated gravel ranging from pebbles to small boulders, and sand with minor silt and clay.

50 to 360 feet: Colorado River deposits, old silt, sand, and clay, Tcs: Quartz-rich sand, silt and mud deposits, capped by younger Pleistocene units. Unit Tcs exhibits thin to medium bedding and is occasionally massive. Quartz-rich sand beds, thin, laminated, and occasionally massive. Sand grains are typically very well sorted and well-rounded to sub-rounded and commonly exhibit cross-laminations.

360 to 565 feet: Fanglomerate, Tfc: Poorly sorted, light brown to medium gray conglomerate and conglomeratic sandstone with angular to sub-rounded clasts of local metamorphic rocks, granitoids, and other siliceous rocks. The unit is sand-supported with locally abundant sub-rounded pebble size grains of fine grained quartz and lithic sand grains.

565 to 680 feet: Bouse Formation, Tbc: Carbonate-rich deposits including algal limestone, bioclastic limestone hash, massive tufa drapes, on paleo hillslopes, thin-bedded bioclastic-rich marl, and calcareous sandstone.

3.2 Well Installation and Development

Once the borehole and casing were advanced to 680 ft-bgs, Azca began the installation of the 8-inch diameter steel well. A layer of washed gravel was installed via cement truck at the base of the borehole to serve as a foundation for the well, from 680 to 560 ft-bgs. A 40-foot-long, 8-inch diameter sump was welded to the bottom of the screen from 560 to 520 ft-bgs. The 40-foot-long, 0.040-inch slotted Johnson™ made 8 inch-diameter wire-wrapped well screen was welded to the sump and installed from 520 to 480 ft-bgs. 480 feet of blank steel casing was welded to the top of the screen to complete the well from 480 ft-bgs to +2.2 feet above ground surface (Figure 3).

103528-001 January 4, 2021

Once the well was situated into place within the borehole, a gravel filter pack was installed around the screened interval. The filter pack consisted of washed pea gravel that would envelop the entire screened interval and more to account for settling during well development. The filter pack was installed via cement truck filled with washed pea gravel to get the filter pack up to approximately 60 ft-bgs and then completed the well by installing the cement surface seal from 60 ft-bgs to grade. Well development occurred after the gravel filter pack was installed but prior to the completion of the surface seal to account for possible drop in the filter pack that can occur during swapping and bailing. During development, there was no indication that there was a drop-in water level nor was there any significant loss of the filter pack, < 1 foot in both cases.

There was an initial pumping test in March that yielded a sustainable pumping rate of 1.5 gpm. Azca used a torch to perforate the casing in a saturated zone identified from geophysical logs previously done, between 100 and 120 feet below grade. Once this was completed, Azca Drilling representative, Gary Hicks conducted a 24-hour pumping test to identify a sustainable pumping rate.

3.3 Initial Constant Rate Pumping Test

Azca Drilling, Inc. performed a 24 hour constant rate pumping test on May 30, 2020. The pump intake was set at a depth of approximately 473 feet below top of casing (btoc). The static water level prior to testing was approximately 394 feet btoc, or 392.5 feet below grade.

Discharge water was routed out of the well via a 1.5-inch galvanized pipe equipped with a pressure gauge and gate valve. The pumped water was discharged to the ground, approximately 3 feet south of the well (Exhibit 3-2). We measured the flow rate through a flow meter that was set up just south of the well, and we controlled the flow rate by adjusting the gate valve.

The initial test was performed by a licensed geologist monitored the constant rate test.

Initially, the pumping test started at a pumping rate between 25 and 28 gallons per minute (gpm) but was not sustainable and was lowered to between 15 and 18 gpm for the duration fo the pumping test. Azca monitored aquifer response to pumping via pressure transducer installed within the well and observed a maximum drawdown of approximately 40 feet within the well pumping at 15 to 18 gpm. After the 24-hour test, Azca turned off the pump, and monitored the water level in the well during recovery until it was within about 90 percent of the pre-pumping static water level.

The constant rate test data indicates a theoretical specific capacity of between approximately

0.38 and 0.45 gpm per foot of drawdown at a pumping rate between 15 and 18 gpm under current aquifer and well conditions (Fig. 3).

103528-001 January 4, 2021

Exhibit 3-2: Pumping Test Setup

3.4 Shannon & Wilson Constant Pumping Test

After Azca Drilling completed their constant rate test and it indicated that the well could be pumped between 15 and 18 gpm for the duration of our 24-hour pumping test. A measured static water level of 394.8 ft-below top of casing, or 393.3 feet below grade. Shannon & Wilson was unable to deploy a pressure transducer in the well prior to the test starting due to an obstruction in the sounding tube. Our initial pumping rate was approximately 20 gpm

103528-001 January 4, 2021 and we were unable to sustain that rate with the drawdown leveling out. The flow rate was dialed back down to between 15 and 18 gpm and the drawdown stabilized at 48.6 feet (Fig. 4).

WATER QUALITY TESTING

4.1 Water Quality Testing Results

Water quality samples were taken on August 21, 2020 by a Shannon & Wilson representative. The samples were sent to Eurofins TestAmerica in Phoenix, Arizona. The samples were analyzed according to EPA procedures. The analytical report can be found in Appendix B. A table below summarizes the results of the contaminants that were detected as well as the EPA maximum contaminant levels (MCLs) and methods used.

Exhibit 4-1: Summary of Water Quality Results

1 MCL limits derived from the EPA’s groundwater and drinking water regulations (https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations)

Contaminant Result Maximum Containment Level

(MCL)1 Method

Sodium 76 mg/L 4 mg/L EPA Method 200.7: Metals

Arsenic 0.0017 mg/L 0.010 mg/L EPA Method 200.8: Metals

Barium 0.030 mg/L 2 mg/L EPA Method 200.8: Metals

Thallium 0.00025 mg/L 0.002 mg/L EPA Method 200.8: Metals

Beryllium 0.0022 mg/L 0.004 mg/L EPA Method 200.7: Metals

Toluene 0.0034 mg/L 1 mg/L Purgeable Organics by EPA

Total Dissolved Solids 2500 mg/L 500 mg/L SM2540C MOD: Total Dissolved Solids

Sulfate 1600 mg/L 250 mg/L EPA Method 300.0: Anions

Nitrate, as N 0.040 mg/L 10 mg/L EPA Method 300.0: Anions

Fluoride 2.8 mg/L 4.0 mg/L EPA Method 300.0: Anions https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations

103528-001 January 4, 2021

4.2 Hydrogeologic Conditions and Recommendations

4.2

The static groundwater level well appears to be roughly 395 feet below top of casing, or

393.5 feet below grade. The primary production zones for the well are likely between about 390 and 540 feet below grade. After the three different tests, it is our interpretation that the ideal pumping rate for this well is between 15 and 18 gpm.

4.3 Wellhead Protection Area (WHPA) Delineation

The theoretical Wellhead Protection Area (WHPA) was calculated as per the EPA 1993 Guidelines for Delineation of Wellhead Protection Areas, EPA-440/5-93-001. Two methods, the Calculated Fixed Radius (CFR) and the Simplified Variable Shapes (SVS), were used in this study to assist in development of the WHPA surrounding the newly constructed well outside of Quartzsite, AZ for the Tyson Wash Campgrounds (Figure 5).

4.3.1 Calculated Fixed Radius (CFR) Method

The CFR method is used to determine the circular areas around the source through which groundwater will travel over a given timeframe. Our source is the newly constructed well and the timeframe is 2 and 5 years. The travel time of groundwater from the edge of to the source well is dependent on the radius of the circle.

The CFR technique establishes a cylinder down into the aquifer where the radius of the cylinder is based on the Time of Travel (TOT) to the well. The method is called the CFR because the area it describes is a circle, which has equal radius in all directions. The radius is the distance from the well to the point where groundwater travel time to the well is 2 and 5 years. Below is the equation used to calculate the fixed radius:

𝑟𝑟 = 𝐹𝐹𝐹𝐹�

𝑄𝑄𝑄𝑄

7.48𝑛𝑛𝑛𝑛𝑛𝑛 r = Radius zones for 2- and 5-year time of travel Q = Average pumping rate in gallons per year, 15 gpm yields 7,884,000 gallons per year t = TOT, 2 for 2 years and 5 for 5 years n = Porosity, for Alluvium, gravels, sands, and unconsolidated to partially consolidated sandstone and conglomerate, use 0.25 H = Screened or perforated interval of well, in this case 40 feet Π = Pi, or 3.1416

7.48 = Conversion factor for gallons to cubic feet (ft3) FS = Factor of safety, where all values are known use 1.3

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Once the equation was completed, the results of the 2- and 5-year TOT zones around the well have a radius of approximately 336.8 feet for 2-year TOT and approximately 532.6 feet for the 5-year TOT. These two zones represent the WHPA.

4.3.2 Simplified Variable Shape (SVS)

According to the Guidelines for Delineation of Wellhead Protection Areas (EPA-440/5-93- 001), the SVS procedure involves generating a set of shapes that represent different hydrogeologic and pumping conditions. The variable shapes are calculated by computing the distance to downgradient and lateral extent of the groundwater flow boundaries around the pumping well. The appropriate shape is then selected for upgradient extent of the WHPA. The principle behind this method is in providing a factor of safety around what would be a good assessment of a WHPA if the data were more accurate, detailed, and reliable. Once the CFR was calculated, the steps for creating the SVS are the following:

1. Draw a centerline through the well in the upgradient direction of the flow to determine the approximate distance of travel from the well, defined “z”, using:

𝑧𝑧 =

𝐾𝐾𝐾𝐾

𝑛𝑛

𝑄𝑄

K = Hydraulic conductivity, the textbook value for silty fine sands was 5 feet per day (ft/day) i = Hydraulic gradient, assumed to follow the general direction of the adjacent Colorado River, with a surface gradient change of 31 feet over one mile, the gradient of 0.005 n = Porosity, again the value used was 0.25 t = TOT, 2 for 2 years and 5 for 5 years

2. Draw a line perpendicular to the centerline at the distance calculated “z” from the center point. Label this line A-A’.

3. Draw two lines tangent to the circle and parallel to the centerline. Where these cross the line A-A’, measure outward a distance z/4; show as points B and B’.

4. Draw tangent lines from B and B’ to the circle.

Using the well as the center point, draw an arc from B to B’.

5 LIMITATIONS

We have prepared the document "Important Information About Your Geotechnical/ Environmental Report" to assist you and others in understanding the use and limitations of

103528-001 January 4, 2021 this report. Please read this document to learn how you can lower your risks for this project.

This report was prepared for the exclusive use of BCE, the COE, and their representatives for use in the design of fire protection facilities at the Site. This report should be provided to prospective contractors for information of factual data only, and not as a warranty of subsurface conditions, such as those interpreted from the exploration log and discussions of subsurface conditions included in this report.

The analyses, conclusions, and recommendations contained in this report are based on Site conditions as they presently exist. We assume that the results of the exploration made for this project represent the subsurface conditions throughout the Site, i.e., the subsurface conditions everywhere are not significantly different from those disclosed by the explorations.

Within the limitations of the scope, schedule, and budget, the analyses, conclusions, and recommendations presented in this report were prepared in accordance with generally accepted professional hydrogeologic principles and practice in this area at the time this report was prepared. We make no other warranty, either express or implied.

Unanticipated subsurface conditions are commonly encountered and cannot be fully determined by merely taking soil or rock samples or completing subsurface explorations.

Such unexpected conditions frequently require that additional expenditures be made to attain a properly constructed project. There, some contingency fund is recommended to accommodate such potential extra costs.

The scope of our services for this report did not include any assessments or evaluations regarding the presence or absence of wetlands, cultural resources, or hazardous or toxic substances on or below the Site. If a service is not specifically indicated in this report, do not assume that it was performed.

6 REFERENCES

EPA, 1993, Guidelines for Delineation of Wellhead Protection Areas, EPA-440/5-93-001

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House, P.K., Peachtree, P.A., and Perkins, M.E., 2008, Stratigraphic evidence for the role of lake spillover in the inception of lower Colorado River in southern Nevada and western Arizona, in Reheis, M.C., Hershler, R., and Miller, D.M., eds., Late Cenozoic drainage history of the southwestern Great Basin and lower Colorado River region: geologic and biotic perspectives: Geological Society of America Special Paper 439, p. 335-353; doi:10.1130/2008.2439(15)

National Primary Drinking Water Regulations, Environmental Protection Agency, 2009:

Available: https://www.epa.gov/sites/production/files/2016- 06/documents/npwdr_complete_table.pdf.

FIG

. 1

BLM- La Posa Plains Tyson Wash Campsite

Quartzsite, Arizona

Site Location Map New Source Well Location

January 2021 103528-001

SHANNON & WILSON, INC.

Geotechnical and Environmental Consultants

FIG. 1

FIG

. 2

BLM - La Posa Plains, Tyson Wash Campgrounds, Quartszite, AZ

Site Vicinity Map New Well Location

January 2021 103528-001

SHANNON & WILSON, INC.

Geotechnical and Environmental Consultants

FIG. 2

500.0

520.0

540.0

560.0

580.0

600.0

0 500 1000 1500 2000 2500

G ro un dw at er

E le va tio n (ft

, E L.

Elapsed Time (minutes)

Groundwater Elevation

F

IG

. 3

BLM- La Posa Plains Tyson Wash Campsite

Quartzsite, AZ

Azca Drilling Constant Rate Pumping Test

New Source Well

January 2021 103528-001

FIG. 3SHANNON & WILSON,

Geotechnical and Environmental

NOTES

1. Transducer was installed on 5/30/2020 in preparation for a 24-hour pumping test.

2. The well depth is 560-feet below ground surface.

3. The well is screened from 480 to 520-feet below ground surface.

4. The static water level at the time of testing was 396.2 ft-btoc.

5. Maximum average drawdown was 28 ft at 15-18 gpm.

ft-btoc = feet below top of casing gpm = gallons per minute ft = feet

Pumping rate 25-28 GPM

Pumping rate 15-18 GPM

450.00

460.00

470.00

480.00

490.00

500.00

510.00

520.00

530.00

0 200 400 600 800 1000 1200 1400

G ro un dw at er

E le va tio n (f t E l.)

Elapsed Time (minutes)

Groundwater Elevation

GPM

F

IG

. 4

BLM - La Posa Plains Tyson Wash Campsite

Quartzsite, AZ

Shannon & Wilson Constant Rate Pumping Test

New Source Well

January 2021 103528-001

FIG. 4SHANNON & WILSON,

Geotechnical and Environmental

NOTES

1. A 24-hour pumping test was conducted on 8/20/2020.

2. The well depth is 560-feet below ground surface.

3. The well is screened from 480 to 520-feet below ground surface.

4. The static water level at the time of testing was 396.2 ft-btoc.

5. Maximum average drawdown was 48.6 ft at 15-18 gpm, and 55.8 ft at 22 gpm.

ft-btoc = feet below top of casing gpm = gallons per minute ft= feet

AZGEO

BLM - La Posa Plains Tyson Wash Campsite Quartzsite, Arizona

´ 0 150 300 450 60075 Feet

Wellhead Protection Area

Legend !. Well Point

2 Year Time of Travel 5 Year Time of Travel

FIG. 5

103528-001 January 4, 2021 A-i

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PE

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IX

A : F

IE

LD

E

XP

LO

RA

TI

ON

S Appendix A: Field Explorations

Appendix A

Field Exploration

Water Well Report

103528-001 January 4, 2021 A-i

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IX

B : W ate r Q ua lity

R es ult s

Appendix A: Field Explorations

Appendix B

Water Quality Results

Test America Analysis Laboratory Results

ANALYTICAL REPORT

Eurofins TestAmerica, Phoenix 4625 East Cotton Ctr Blvd Suite 189 Phoenix, AZ 85040 Tel: (602)437-3340

Laboratory Job ID: 550-147667-1 Client Project/Site: Arizona New Source

For:

Shannon & Wilson, Inc 400 N. 34th Suite 100

PO BOX 300303

Seattle, Washington 98103

Attn: Jim Bailey

Authorized for release by:

9/25/2020 4:00:24 PM

Urvashi Patel, Client Service Manager Urvashi.Patel@Eurofinset.com

This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature.

Results relate only to the items tested and the sample(s) as received by the laboratory.

https://secure.testamericainc.com/TotalAccess/login.aspx http://www.testamericainc.com/services-we-offer/ask-the-expert http://www.eurofinsus.com/Env mailto:Urvashi.Patel@Eurofinset.com

Table of Contents

Client: Shannon & Wilson, Inc Project/Site: Arizona New Source

Laboratory Job ID: 550-147667-1

Eurofins TestAmerica, Phoenix

9/25/2020

Cover Page

Table of Contents

Definitions/Glossary

Case Narrative

Sample Summary

Detection Summary

Client Sample Results

Surrogate Summary

Isotope Dilution Summary

QC Sample Results

QC Association Summary

Lab Chronicle

Certification Summary

Method Summary

Subcontract Data

Chain of Custody

Field Data Sheets

Receipt Checklists

Definitions/Glossary Job ID: 550-147667-1Client: Shannon & Wilson, Inc

Project/Site: Arizona New Source

Qualifiers

GC/MS VOA

Qualifier Description

E8 Analyte reported to MDL per project specification. Target analyte was not detected in the sample.

Qualifier

HPLC/IC

Qualifier Description

D2 Sample required dilution due to high concentration of analyte.

Qualifier

E2 Concentration estimated. Analyte exceeded calibration range. Reanalysis not performed due to sample matrix.

E4 Concentration estimated. Analyte was detected below laboratory minimum reporting level (MRL) but above MDL.

E8 Analyte reported to MDL per project specification. Target analyte was not detected in the sample.

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The associated blank spike was acceptable.

Dioxin Qualifier Description

E8 Analyte reported to MDL per project specification. Target analyte was not detected in the sample.

Qualifier

Metals Qualifier Description

E8 Analyte reported to MDL per project specification. Target analyte was not detected in the sample.

Qualifier

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The associated blank spike was acceptable.

General Chemistry Qualifier Description

E8 Analyte reported to MDL per project specification. Target analyte was not detected in the sample.

Qualifier

H5 This test is specified to be performed in the field within 15 minutes of sampling; sample was received and analyzed past the regulatory holding time.

N1 See case narrative.

N7 Additional analysis was not performed based on the "Total" result which was below the requested analyte's MCL/Action level/Trigger level.

Biology Qualifier Description

A7 Micro sample received without adequate headspace.

Qualifier

Glossary These commonly used abbreviations may or may not be present in this report.

¤ Listed under the "D" column to designate that the result is reported on a dry weight basis

Abbreviation

%R Percent Recovery

CFL Contains Free Liquid

CFU Colony Forming Unit

CNF Contains No Free Liquid

DER Duplicate Error Ratio (normalized absolute difference)

Dil Fac Dilution Factor

DL Detection Limit (DoD/DOE)

DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample

DLC Decision Level Concentration (Radiochemistry)

EDL Estimated Detection Limit (Dioxin)

LOD Limit of Detection (DoD/DOE)

LOQ Limit of Quantitation (DoD/DOE)

MCL EPA recommended "Maximum Contaminant Level"

MDA Minimum Detectable Activity (Radiochemistry)

MDC Minimum Detectable Concentration (Radiochemistry)

MDL Method Detection Limit

ML Minimum Level (Dioxin)

MPN Most Probable Number

MQL Method Quantitation Limit

NC Not Calculated

Eurofins TestAmerica, Phoenix

Page 3 of 78 9/25/2020

Definitions/Glossary

Project/Site: Arizona New Source

Glossary (Continued)

These commonly used abbreviations may or may not be present in this report.

ND Not Detected at the reporting limit (or MDL or EDL if shown)

Abbreviation

NEG Negative / Absent

POS Positive / Present

PQL Practical Quantitation Limit

PRES Presumptive

QC Quality Control

RER Relative Error Ratio (Radiochemistry)

RL Reporting Limit or Requested Limit (Radiochemistry)

RPD Relative Percent Difference, a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

TNTC Too Numerous To Count

Eurofins TestAmerica, Phoenix

Page 4 of 78 9/25/2020

Case Narrative Client: Shannon & Wilson, Inc Job ID: 550-147667-1 Project/Site: Arizona New Source

Job ID: 550-147667-1

Laboratory: Eurofins TestAmerica, Phoenix

Narrative

Job Narrative

550-147667-1

Comments

Client was contacted on for the issues listed below from the subcontract lab:

(E505- Heptachlor) H1 -Hydrogen tank ran out in the middle of the night. Gauge did not indicate that tank was low. Samples could not be run within the 24 hour extract hold time. Samples were re-extracted past hold time for heptachlor.

Client is okay to report past HT, re-sample not possible.

- Page 1 of 1

(E505- Chlordane) H1 -Closing CCV for chlordane was not analyzed due to hydrogen tank running out overnight before it was analyzed due to vendor error. Client is okay to report past HT, re-sample not possible.

Receipt The samples were received on 8/20/2020 3:20 PM; the samples arrived in good condition, and where required, properly preserved and on ice. The temperatures of the 2 coolers at receipt time were 5.0º C and 13.5º C.

Receipt Exceptions

Micro sample is too full, the sample is in the lab with A7 written on the cap for the lab to flag.

S-18 (550-147667-18)

GC/MS VOA

No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

HPLC/IC

No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

Dioxin No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

Metals

No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

General Chemistry Method 203: The pH and temperature used to report Langelier Index by method SM 2330B for the following sample was measured at the laboratory rather than in the field as specified by the reference method; S-5 (550-147667-5). As such, the result has been qualified with an

N1 flag.

No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.

Biology

No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

Dioxin Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

Lab Admin

No analytical or quality issues were noted, other than those described in the Definitions/Glossary page.

Subcontract Work Methods EPA 504.1 - EDB, DBCP, EPA 505 - Chlorinated Pesticides & PCBs - AZ Regulated, EPA 515.1 - Herbicides - AZ Regulated, EPA

525.2 - Semivolatile Organic Compounds - AZ Regulated, EPA 531.1 - Carbamate Pesticides - AZ Regulated, EPA 547 - Glyphosate, EPA

Eurofins TestAmerica, Phoenix Page 5 of 78 9/25/2020

Case Narrative

Project/Site: Arizona New Source

Job ID: 550-147667-1 (Continued)

Laboratory: Eurofins TestAmerica, Phoenix (Continued)

548.1 - Endothall, EPA 549.2 - Diquat: These methods were subcontracted to Eurofins Eaton Analytical. The subcontract laboratory certifications are different from that of the facility issuing the final report.

Method Asbestos: This method was subcontracted to Fiberquant Analytical Services, Inc.. The subcontract laboratory certification is different from that of the facility issuing the final report.

Methods Gross Alpha, Radium 226/228, Total Uranium Isoptopes: These methods were subcontracted to Radiation Safety. The subcontract laboratory certifications are different from that of the facility issuing the final report.

Eurofins TestAmerica, Phoenix Page 6 of 78 9/25/2020

Sample Summary

Project/Site: Arizona New Source

Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID

550-147667-1 S-1 Water 08/20/20 11:30 08/20/20 15:20

550-147667-2 S-2 Water 08/20/20 11:30 08/20/20 15:20

550-147667-3 S-3 Water 08/20/20 11:30 08/20/20 15:20

550-147667-4 S-4 Water 08/20/20 11:30 08/20/20 15:20

550-147667-5 S-5 Water 08/20/20 11:30 08/20/20 15:20

550-147667-6 S-6 Water 08/20/20 11:30 08/20/20 15:20

550-147667-7 S-7 Water 08/20/20 11:30 08/20/20 15:20

550-147667-8 S-8 Water 08/20/20 11:30 08/20/20 15:20

550-147667-9 S-9 Water 08/20/20 11:30 08/20/20 15:20

550-147667-10 S-10 Water 08/20/20 11:30 08/20/20 15:20

550-147667-11 S-11 Water 08/20/20 11:50 08/20/20 15:20

550-147667-12 S-12 Water 08/20/20 11:50 08/20/20 15:20

550-147667-13 S-13 Water 08/20/20 11:50 08/20/20 15:20

550-147667-14 S-14 Water 08/20/20 11:50 08/20/20 15:20

550-147667-15 S-15 Water 08/20/20 11:50 08/20/20 15:20

550-147667-16 S-16 Water 08/20/20 11:50 08/20/20 15:20

550-147667-17 S-17 Water 08/20/20 11:50 08/20/20 15:20

550-147667-18 S-18 Water 08/20/20 11:50 08/20/20 15:20

Eurofins TestAmerica, Phoenix

Page 7 of 78 9/25/2020

Detection Summary

Project/Site: Arizona New Source

Client Sample ID: S-1 Lab Sample ID: 550-147667-1

No Detections.

Client Sample ID: S-2 Lab Sample ID: 550-147667-2

Sodium

RL

0.50 mg/L

MDL

0.028

Analyte Result Qualifier Unit Dil Fac D Method Prep Type

Total/NA176 200.7

Calcium 2.0 mg/L0.015 Total/NA1510 200.7

Arsenic 0.0010 mg/L0.00082 Total/NA10.0017 200.8

Barium 0.00050 mg/L0.00034 Total/NA10.030 200.8

Nickel 0.0020 mg/L0.00099 Total/NA10.015 200.8

Thallium 0.00010 mg/L0.000082 Total/NA10.00025 200.8

Beryllium 0.40 ug/L0.073 Total/NA12.2 200.8

Client Sample ID: S-3 Lab Sample ID: 550-147667-3

Calcium

RL

2.0 mg/L

MDL

0.015

Analyte Result Qualifier Unit Dil Fac D Method Prep Type

Total/NA1M3490 200.7

Calcium hardness as calcium carbonate

5.0 mg/L5.0 Total/NA11200 SM 2340B

Client Sample ID: S-4 Lab Sample ID: 550-147667-4

No Detections.

Client Sample ID: S-5 Lab Sample ID: 550-147667-5

Nitrate as N

RL

0.050 mg/L

MDL

0.014

Analyte Result Qualifier Unit Dil Fac D Method Prep Type

Total/NA1E40.040 300.0

Fluoride 0.40 mg/L0.047 Total/NA12.8 300.0

Sulfate 40 mg/L8.5 Total/NA201600 D2 300.0

Langelier Index LangSU Total/NA1-0.15 N1 2330B

Alkalinity as CaCO3 6.0 mg/L6.0 Total/NA1120 SM 2320B

Bicarbonate Alkalinity as CaCO3 6.0 mg/L6.0 Total/NA1120 SM 2320B

Total Dissolved Solids 20 mg/L20 Total/NA12500 SM 2540C

Client Sample ID: S-6 Lab Sample ID: 550-147667-6 pH

RL

1.7 SU

RL

1.7

Analyte Result Qualifier Unit Dil Fac D Method Prep Type

Total/NA1H56.8 9040C

Temperature 0.1 Degrees C0.1 Total/NA117.6 H5 9040C

Specific Conductance 2.0 umhos/cm2.0 Total/NA12600 SM 2510B

Client Sample ID: S-7 Lab Sample ID: 550-147667-7

No Detections.

Client Sample ID: S-8 Lab Sample ID: 550-147667-8

No Detections.

Client Sample ID: S-9 Lab Sample ID: 550-147667-9

No Detections.

Client Sample ID: S-10 Lab Sample ID: 550-147667-10

Toluene

RL

0.00050 mg/L

MDL

0.000090

Analyte Result Qualifier Unit Dil Fac D Method Prep Type

Total/NA10.0034 524.2

Eurofins TestAmerica, Phoenix

This Detection Summary does not include radiochemical test results.

Page 8 of 78 9/25/2020

Detection Summary

Project/Site: Arizona New Source

Client Sample ID: S-11 Lab Sample ID: 550-147667-11

No Detections.

Client Sample ID: S-12 Lab Sample ID: 550-147667-12

No Detections.

Client Sample ID: S-13 Lab Sample ID: 550-147667-13

No Detections.

Client Sample ID: S-14 Lab Sample ID: 550-147667-14

No Detections.

Client Sample ID: S-15 Lab Sample ID: 550-147667-15

No Detections.

Client Sample ID: S-16 Lab Sample ID: 550-147667-16

No Detections.

Client Sample ID: S-17 Lab Sample ID: 550-147667-17

No Detections.

Client Sample ID: S-18 Lab Sample ID: 550-147667-18

Escherichia coli

NONE

No Unit

NONEAnalyte Result Qualifier Unit Dil Fac D Method Prep Type

Total/NA1A7Absent 9223B

Coliform, Total No Unit Total/NA1Absent A7 9223B

Eurofins TestAmerica, Phoenix

This Detection Summary does not include radiochemical test results.

Page 9 of 78 9/25/2020

Client Sample Results

Project/Site: Arizona New Source

Lab Sample ID: 550-147667-2Client Sample ID: S-2 Matrix: WaterDate Collected: 08/20/20 11:30

Date Received: 08/20/20 15:20

Method: 200.7 - ICP Metals by 200.7

RL MDL

Sodium 76 0.50 0.028 mg/L 08/25/20 20:45 08/28/20 05:06 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

2.0 0.015 mg/L 08/25/20 20:45 08/28/20 05:06 1Calcium 510

Method: 200.8 - Metals (ICP/MS)

RL MDL

Antimony ND E8 0.0010 0.00021 mg/L 08/25/20 20:41 08/26/20 13:06 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.0010 0.00082 mg/L 08/25/20 20:41 08/26/20 13:06 1Arsenic 0.0017

0.00050 0.00034 mg/L 08/25/20 20:41 08/26/20 13:06 1Barium 0.030

0.00010 0.000055 mg/L 08/25/20 20:41 08/31/20 20:05 1Cadmium ND E8

0.0010 0.00086 mg/L 08/25/20 20:41 08/31/20 20:05 1Chromium ND E8

0.0020 0.0011 mg/L 08/25/20 20:41 08/26/20 13:06 1Copper ND E8

0.00050 0.00028 mg/L 08/25/20 20:41 08/26/20 13:06 1Lead ND E8

0.0020 0.00099 mg/L 08/25/20 20:41 08/26/20 13:06 1Nickel 0.015

0.00050 0.00038 mg/L 08/25/20 20:41 09/21/20 13:04 1Selenium ND E8

0.00010 0.000082 mg/L 08/25/20 20:41 08/31/20 20:05 1Thallium 0.00025

0.40 0.073 ug/L 08/25/20 20:41 08/26/20 13:06 1Beryllium 2.2

Method: 245.1 - Mercury (CVAA)

RL MDL

Mercury ND E8 0.00020 0.000060 mg/L 08/26/20 12:33 08/26/20 17:12 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID: 550-147667-3Client Sample ID: S-3 Matrix: WaterDate Collected: 08/20/20 11:30

Date Received: 08/20/20 15:20

Method: 200.7 - ICP Metals by 200.7

RL MDL

Calcium 490 M3 2.0 0.015 mg/L 08/25/20 20:45 08/28/20 05:02 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Method: SM 2340B - Total Hardness (as CaCO3) by calculation

RL RL

Calcium hardness as calcium carbonate

1200 5.0 5.0 mg/L 08/31/20 09:44 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Lab Sample ID: 550-147667-5Client Sample ID: S-5 Matrix: WaterDate Collected: 08/20/20 11:30

Date Received: 08/20/20 15:20

Method: 300.0 - Anions, Ion Chromatography

RL MDL

Nitrate as N 0.040 E4 0.050 0.014 mg/L 08/20/20 22:56 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.050 0.021 mg/L 08/20/20 22:56 1Nitrite as N ND E8

0.40 0.047 mg/L 08/20/20 22:56 1Fluoride 2.8

40 8.5 mg/L 08/21/20 18:09 20Sulfate 1600 D2

General Chemistry

NONE NONE

Langelier Index -0.15 N1 LangSU 08/31/20 16:59 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

RL MDL

Total Dissolved Solids 2500 20 20 mg/L 08/26/20 10:40 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Eurofins TestAmerica, Phoenix

Page 10 of 78 9/25/2020

Project/Site: Arizona New Source

Lab Sample ID: 550-147667-5Client Sample ID: S-5 Matrix: WaterDate Collected: 08/20/20 11:30

Date Received: 08/20/20 15:20

RL RL

Alkalinity as CaCO3 120 6.0 6.0 mg/L 08/26/20 22:27 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

6.0 6.0 mg/L 08/26/20 22:27 1Bicarbonate Alkalinity as CaCO3 120

6.0 6.0 mg/L 08/26/20 22:27 1Carbonate Alkalinity as CaCO3 ND E8

6.0 6.0 mg/L 08/26/20 22:27 1Alkalinity, Phenolphthalein ND E8

6.0 6.0 mg/L 08/26/20 22:27 1Hydroxide Alkalinity as CaCO3 ND E8

Lab Sample ID: 550-147667-6Client Sample ID: S-6 Matrix: WaterDate Collected: 08/20/20 11:30

Date Received: 08/20/20 15:20

General Chemistry

RL RL

pH 6.8 H5 1.7 1.7 SU 08/26/20 14:00 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.1 0.1 Degrees C 08/26/20 14:00 1Temperature 17.6 H5

2.0 2.0 umhos/cm 08/24/20 14:55 1Specific Conductance 2600

Lab Sample ID: 550-147667-7Client Sample ID: S-7 Matrix: WaterDate Collected: 08/20/20 11:30

Date Received: 08/20/20 15:20

General Chemistry

RL MDL

Cyanide, Total ND E8 0.050 0.0068 mg/L 08/28/20 07:20 08/28/20 08:20 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.050 0.0068 mg/L 08/28/20 08:20 1Cyanide, Amenable ND E8 N7

0.050 0.0068 mg/L 08/28/20 07:20 08/28/20 08:20 1Cyanide, Non-amenable ND E8 N7

Lab Sample ID: 550-147667-8Client Sample ID: S-8 Matrix: WaterDate Collected: 08/20/20 11:30

Date Received: 08/20/20 15:20

Method: 1613B - Tetra Chlorinated Dioxin (HRGC/HRMS)

RL EDL

2,3,7,8-TCDD ND E8 5.0 0.48 pg/L 08/26/20 11:30 08/28/20 15:49 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

13C-2,3,7,8-TCDD 81 31 - 137 08/26/20 11:30 08/28/20 15:49 1

Isotope Dilution Dil FacAnalyzedPreparedQualifier Limits%Recovery

Lab Sample ID: 550-147667-10Client Sample ID: S-10 Matrix: WaterDate Collected: 08/20/20 11:30

Date Received: 08/20/20 15:20

Method: 524.2 - Volatile Organic Compounds (GC/MS)

RL MDL

1,1,1-Trichloroethane ND E8 0.00050 0.000080 mg/L 08/31/20 21:21 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.00050 0.00018 mg/L 08/31/20 21:21 11,1,2-Trichloroethane ND E8

0.00050 0.00014 mg/L 08/31/20 21:21 11,1-Dichloroethene ND E8

0.00050 0.00019 mg/L 08/31/20 21:21 11,2,4-Trichlorobenzene ND E8

0.00050 0.00011 mg/L 08/31/20 21:21 11,2-Dichlorobenzene ND E8

0.00050 0.000070 mg/L 08/31/20 21:21 11,2-Dichloroethane ND E8

0.00050 0.000070 mg/L 08/31/20 21:21 11,2-Dichloropropane ND E8

0.00050 0.00014 mg/L 08/31/20 21:21 11,4-Dichlorobenzene ND E8

0.00050 0.000080 mg/L 08/31/20 21:21 1Benzene ND E8

0.00050 0.000080 mg/L 08/31/20 21:21 1Carbon tetrachloride ND E8

Eurofins TestAmerica, Phoenix

Page 11 of 78 9/25/2020

Project/Site: Arizona New Source

Lab Sample ID: 550-147667-10Client Sample ID: S-10 Matrix: WaterDate Collected: 08/20/20 11:30

Date Received: 08/20/20 15:20

Method: 524.2 - Volatile Organic Compounds (GC/MS) (Continued)

RL MDL

Chlorobenzene ND E8 0.00050 0.000070 mg/L 08/31/20 21:21 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.00050 0.00014 mg/L 08/31/20 21:21 1cis-1,2-Dichloroethene ND E8

0.00050 0.00010 mg/L 08/31/20 21:21 1Ethylbenzene ND E8

0.00050 0.00040 mg/L 08/31/20 21:21 1Methylene Chloride ND E8

0.00050 0.00019 mg/L 08/31/20 21:21 1Styrene ND E8

0.00050 0.00013 mg/L 08/31/20 21:21 1Tetrachloroethene ND E8

0.00050 0.000090 mg/L 08/31/20 21:21 1Toluene 0.0034

0.00050 0.00010 mg/L 08/31/20 21:21 1trans-1,2-Dichloroethene ND E8

0.00050 0.000050 mg/L 08/31/20 21:21 1Trichloroethene ND E8

0.00050 0.00010 mg/L 08/31/20 21:21 1Vinyl chloride ND E8

0.0015 0.00036 mg/L 08/31/20 21:21 1Xylenes, Total ND E8

4-Bromofluorobenzene (Surr) 99 70 - 130 08/31/20 21:21 1

Surrogate Dil FacAnalyzedPreparedQualifier Limits%Recovery

1,2-Dichlorobenzene-d4 104 08/31/20 21:21 170 - 130

Lab Sample ID: 550-147667-18Client Sample ID: S-18 Matrix: WaterDate Collected: 08/20/20 11:50

Date Received: 08/20/20 15:20

Method: 9223B - Coliforms, Total, and E.Coli (Presence/Absence)

NONE NONE

Escherichia coli Absent A7 No Unit 08/20/20 19:05 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

No Unit 08/20/20 19:05 1Coliform, Total Absent A7

Eurofins TestAmerica, Phoenix

Page 12 of 78 9/25/2020

Surrogate Summary

Project/Site: Arizona New Source

Method: 524.2 - Volatile Organic Compounds (GC/MS) Prep Type: Total/NAMatrix: Water

Lab Sample ID Client Sample ID (70-130) (70-130)

BFB DCZ

99 104550-147667-10

Percent Surrogate Recovery (Acceptance Limits)

S-10

101 100LCS 550-218933/1004 Lab Control Sample

99 98LCSD 550-218933/1013 Lab Control Sample Dup

100 106MB 550-218933/6 Method Blank

Surrogate Legend

BFB = 4-Bromofluorobenzene (Surr)

DCZ = 1,2-Dichlorobenzene-d4

Eurofins TestAmerica, Phoenix

Page 13 of 78 9/25/2020

Isotope Dilution Summary

Project/Site: Arizona New Source

Method: 1613B - Tetra Chlorinated Dioxin (HRGC/HRMS) Prep Type: Total/NAMatrix: Water

Lab Sample ID Client Sample ID (31-137)

TCDD

81550-147667-8

Percent Isotope Dilution Recovery (Acceptance Limits)

S-8

73LLCS 320-406769/4-A Lab Control Sample

61MB 320-406769/1-A Method Blank

Surrogate Legend

TCDD = 13C-2,3,7,8-TCDD

Method: 1613B - Tetra Chlorinated Dioxin (HRGC/HRMS) Prep Type: Total/NAMatrix: Water

Lab Sample ID Client Sample ID (25-141)

TCDD

66LCS 320-406769/2-A

Percent Isotope Dilution Recovery (Acceptance Limits)

Lab Control Sample

72LCSD 320-406769/3-A Lab Control Sample Dup

Surrogate Legend

TCDD = 13C-2,3,7,8-TCDD

Eurofins TestAmerica, Phoenix

Page 14 of 78 9/25/2020

QC Sample Results

Project/Site: Arizona New Source

Method: 524.2 - Volatile Organic Compounds (GC/MS)

Client Sample ID: Method BlankLab Sample ID: MB 550-218933/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 218933

RL MDL

1,1,1-Trichloroethane ND E8 0.00050 0.000080 mg/L 08/31/20 20:54 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

ND E8 0.000180.00050 mg/L 08/31/20 20:54 11,1,2-Trichloroethane

ND E8 0.000140.00050 mg/L 08/31/20 20:54 11,1-Dichloroethene

ND E8 0.000190.00050 mg/L 08/31/20 20:54 11,2,4-Trichlorobenzene

ND E8 0.000110.00050 mg/L 08/31/20 20:54 11,2-Dichlorobenzene

ND E8 0.0000700.00050 mg/L 08/31/20 20:54 11,2-Dichloroethane

ND E8 0.0000700.00050 mg/L 08/31/20 20:54 11,2-Dichloropropane

ND E8 0.000140.00050 mg/L 08/31/20 20:54 11,4-Dichlorobenzene

ND E8 0.0000800.00050 mg/L 08/31/20 20:54 1Benzene

ND E8 0.0000800.00050 mg/L 08/31/20 20:54 1Carbon tetrachloride

ND E8 0.0000700.00050 mg/L 08/31/20 20:54 1Chlorobenzene

ND E8 0.000140.00050 mg/L 08/31/20 20:54 1cis-1,2-Dichloroethene

ND E8 0.000100.00050 mg/L 08/31/20 20:54 1Ethylbenzene

ND E8 0.000400.00050 mg/L 08/31/20 20:54 1Methylene Chloride

ND E8 0.000190.00050 mg/L 08/31/20 20:54 1Styrene

ND E8 0.000130.00050 mg/L 08/31/20 20:54 1Tetrachloroethene

ND E8 0.0000900.00050 mg/L 08/31/20 20:54 1Toluene

ND E8 0.000100.00050 mg/L 08/31/20 20:54 1trans-1,2-Dichloroethene

ND E8 0.0000500.00050 mg/L 08/31/20 20:54 1Trichloroethene

ND E8 0.000100.00050 mg/L 08/31/20 20:54 1Vinyl chloride

ND E8 0.000360.0015 mg/L 08/31/20 20:54 1Xylenes, Total

4-Bromofluorobenzene (Surr) 100 70 - 130 08/31/20 20:54 1

MB MB

Surrogate Dil FacPrepared AnalyzedQualifier Limits%Recovery

106 08/31/20 20:54 11,2-Dichlorobenzene-d4 70 - 130

Client Sample ID: Lab Control SampleLab Sample ID: LCS 550-218933/1004 Matrix: Water Prep Type: Total/NA Analysis Batch: 218933

1,1,1-Trichloroethane 0.0200 0.0211 mg/L 105 70 - 130

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

1,1,2-Trichloroethane 0.0200 0.0222 mg/L 111 70 - 130

1,1-Dichloroethene 0.0200 0.0213 mg/L 107 70 - 130

1,2,4-Trichlorobenzene 0.0200 0.0217 mg/L 109 70 - 130

1,2-Dichlorobenzene 0.0200 0.0208 mg/L 104 70 - 130

1,2-Dichloroethane 0.0200 0.0214 mg/L 107 70 - 130

1,2-Dichloropropane 0.0200 0.0213 mg/L 107 70 - 130

1,4-Dichlorobenzene 0.0200 0.0213 mg/L 106 70 - 130

Benzene 0.0200 0.0209 mg/L 104 70 - 130

Carbon tetrachloride 0.0200 0.0209 mg/L 105 70 - 130

Chlorobenzene 0.0200 0.0218 mg/L 109 70 - 130 cis-1,2-Dichloroethene 0.0200 0.0215 mg/L 107 70 - 130

Ethylbenzene 0.0200 0.0219 mg/L 110 70 - 130

Methylene Chloride 0.0200 0.0199 mg/L 100 70 - 130

Styrene 0.0200 0.0222 mg/L 111 70 - 130

Tetrachloroethene 0.0200 0.0216 mg/L 108 70 - 130

Toluene 0.0200 0.0215 mg/L 108 70 - 130

Eurofins TestAmerica, Phoenix

Page 15 of 78 9/25/2020

Project/Site: Arizona New Source

Method: 524.2 - Volatile Organic Compounds (GC/MS) (Continued)

Client Sample ID: Lab Control SampleLab Sample ID: LCS 550-218933/1004 Matrix: Water Prep Type: Total/NA Analysis Batch: 218933 trans-1,2-Dichloroethene 0.0200 0.0215 mg/L 108 70 - 130

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Trichloroethene 0.0200 0.0214 mg/L 107 70 - 130

Vinyl chloride 0.0200 0.0215 mg/L 108 70 - 130

4-Bromofluorobenzene (Surr) 70 - 130

Surrogate

LCS LCS

Qualifier Limits%Recovery

1001,2-Dichlorobenzene-d4 70 - 130

Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 550-218933/1013 Matrix: Water Prep Type: Total/NA Analysis Batch: 218933

1,1,1-Trichloroethane 0.0200 0.0209 mg/L 105 70 - 130 1 20

Analyte

LCSD LCSD

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits LimitRPD

RPD

1,1,2-Trichloroethane 0.0200 0.0216 mg/L 108 70 - 130 3 20

1,1-Dichloroethene 0.0200 0.0210 mg/L 105 70 - 130 1 20

1,2,4-Trichlorobenzene 0.0200 0.0203 mg/L 101 70 - 130 7 20

1,2-Dichlorobenzene 0.0200 0.0197 mg/L 98 70 - 130 6 20

1,2-Dichloroethane 0.0200 0.0211 mg/L 105 70 - 130 1 20

1,2-Dichloropropane 0.0200 0.0209 mg/L 105 70 - 130 2 20

1,4-Dichlorobenzene 0.0200 0.0203 mg/L 101 70 - 130 5 20

Benzene 0.0200 0.0207 mg/L 103 70 - 130 1 20

Carbon tetrachloride 0.0200 0.0209 mg/L 104 70 - 130 0 20

Chlorobenzene 0.0200 0.0211 mg/L 105 70 - 130 4 20 cis-1,2-Dichloroethene 0.0200 0.0212 mg/L 106 70 - 130 1 20

Ethylbenzene 0.0200 0.0212 mg/L 106 70 - 130 3 20

Methylene Chloride 0.0200 0.0203 mg/L 102 70 - 130 2 20

Styrene 0.0200 0.0212 mg/L 106 70 - 130 4 20

Tetrachloroethene 0.0200 0.0207 mg/L 103 70 - 130 4 20

Toluene 0.0200 0.0210 mg/L 105 70 - 130 3 20 trans-1,2-Dichloroethene 0.0200 0.0215 mg/L 107 70 - 130 0 20

Trichloroethene 0.0200 0.0208 mg/L 104 70 - 130 3 20

Vinyl chloride 0.0200 0.0209 mg/L 105 70 - 130 3 20

4-Bromofluorobenzene (Surr) 70 - 130

Surrogate

LCSD LCSD

Qualifier Limits%Recovery

981,2-Dichlorobenzene-d4 70 - 130

Method: 300.0 - Anions, Ion Chromatography

Client Sample ID: Method BlankLab Sample ID: MB 550-218054/2 Matrix: Water Prep Type: Total/NA Analysis Batch: 218054

RL MDL

Nitrate as N ND E8 0.050 0.014 mg/L 08/20/20 14:15 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

ND E8 0.0210.050 mg/L 08/20/20 14:15 1Nitrite as N

ND E8 0.0470.40 mg/L 08/20/20 14:15 1Fluoride

Eurofins TestAmerica, Phoenix

Page 16 of 78 9/25/2020

Project/Site: Arizona New Source

Method: 300.0 - Anions, Ion Chromatography (Continued)

Client Sample ID: Method BlankLab Sample ID: MB 550-218054/2 Matrix: Water Prep Type: Total/NA Analysis Batch: 218054

RL MDL

Sulfate ND E8 2.0 0.43 mg/L 08/20/20 14:15 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

Client Sample ID: Lab Control SampleLab Sample ID: LCS 550-218054/5 Matrix: Water Prep Type: Total/NA Analysis Batch: 218054

Nitrate as N 4.00 4.11 mg/L 103 90 - 110

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Nitrite as N 4.00 4.10 mg/L 103 90 - 110

Fluoride 4.00 4.25 mg/L 106 90 - 110

Sulfate 20.0 21.1 mg/L 105 90 - 110

Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 550-218054/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 218054

Nitrate as N 4.00 4.11 mg/L 103 90 - 110 0 20

Analyte

LCSD LCSD

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits LimitRPD

RPD

Nitrite as N 4.00 4.10 mg/L 103 90 - 110 0 20

Fluoride 4.00 4.24 mg/L 106 90 - 110 0 20

Sulfate 20.0 20.6 mg/L 103 90 - 110 2 20

Client Sample ID: Matrix SpikeLab Sample ID: 550-147611-A-2 MS Matrix: Water Prep Type: Total/NA Analysis Batch: 218054

Nitrate as N 38 M3 4.00 41.5 E2 M3 mg/L 78 80 - 120

Analyte

MS MS

DUnitResult Qualifier %Rec

Spike

Added

Sample

Result

Sample

Qualifier

%Rec.

Limits

Nitrite as N ND E8 4.00 3.43 mg/L 86 80 - 120

Fluoride 0.45 4.00 4.70 mg/L 106 80 - 120

Sulfate 250 E2 M3 20.0 256 E2 M3 mg/L 48 80 - 120

Client Sample ID: Matrix Spike DuplicateLab Sample ID: 550-147611-A-2 MSD Matrix: Water Prep Type: Total/NA Analysis Batch: 218054

Nitrate as N 38 M3 4.00 41.6 E2 M3 mg/L 79 80 - 120 0 20

Analyte

MSD MSD

DUnitResult Qualifier %Rec

Spike

Added

Sample

Result

Sample

Qualifier

%Rec.

Limits LimitRPD

RPD

Nitrite as N ND E8 4.00 3.45 mg/L 86 80 - 120 1 20

Fluoride 0.45 4.00 4.71 mg/L 106 80 - 120 0 20

Sulfate 250 E2 M3 20.0 257 E2 M3 mg/L 49 80 - 120 0 20

Client Sample ID: Method BlankLab Sample ID: MB 550-218147/2 Matrix: Water Prep Type: Total/NA Analysis Batch: 218147

RL MDL

Nitrate as N ND E8 0.050 0.014 mg/L 08/21/20…