soil bentonite mix design

Soil Bentonite Mix Design

Plant Scholz Soil Bentonite Slurry Wall

Gulf Power Company

Sneads, Florida

Prepared By:

Great Lakes Environmental & Infrastructure

3541 Teasley Lane, Suite 200

Denton, Texas 76210

July 27, 2017

Mix Design i Great Lakes E&I Gulf Power Company, Plant Scholz – Slurry Wall

Table of Contents

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

Project Overview ............................................................................................................. 1

Sample Collection ........................................................................................................... 1

Section 2.0 Materials .................................................................................................................. 2

Water .............................................................................................................................. 2

Bentonite ......................................................................................................................... 2

Supplemental Import (If Needed) ................................................................................... 2

Section 3.0 Soil Sample Testing ............................................................................................... 3

Composite Samples........................................................................................................ 3

Section 4.0 Mix Design .............................................................................................................. 4

Mixes .............................................................................................................................. 4

Mix Preparation ............................................................................................................... 4

Permeability Testing ....................................................................................................... 4

Section 5.0 Discussions and Recommendations ................................................................... 6

Recommendation ............................................................................................................ 6

Bentonite Certificate ....................................................................................................... 7

Mix Design Report .......................................................................................................... 8

List of Attachments

Attachment A – Bentonite Certificate

Attachment B – Mix Design Report

Mix Design 1 Great Lakes E&I Gulf Power Company, Plant Scholz – Slurry Wall

Section 1.0 Introduction

Project Overview

Great Lakes Environmental & Infrastructure (GL E&I) scope of work includes preparation of a soil bentonite cutoff wall mix design and construction of approximately 35,000 square feet of soil-bentonite cutoff wall. The soil bentonite slurry wall is part of the IWWTP Work at Gulf Power Company Plant Scholz in Sneads, Florida. Great Lakes Environmental and Infrastructure (GL E&I) has completed the laboratory cutoff wall mix design in accordance with Specification Section 31 35 26.23 of the subject projects specifications to produce a soil-bentonite backfill that meets a maximum permeability of 1 x 10-7 cm/sec.

Sample Collection

Great Lakes Environmental & Infrastructure (GL E&I) performed borings along the proposed cutoff wall alignment to secure soil samples. GL E&I along with its subcontractor Ardaman and Associates secured three composite samples using a 4-inch diameter truck mounted continuous flight auger. Great Lakes E&I and Ardaman personnel collected the samples by removing material from auger cuttings. Additional GL E&I obtained a sample of supplemental material from SAIIA and attained a sample of onsite water to be used in slurry wall construction.

All of the materials were shipped to Tolunay-Wong in Geismar, Louisiana to conduct the laboratory testing and soil-bentonite mixing. Tolunay-Wong personnel have performed numerous mix designs in the past and is certified by the US Army Corps of Engineers for the associated testing.

Mix Design 2 Great Lakes E&I Gulf Power Company, Plant Scholtz – Slurry Wall

Section 2.0 Materials

Water

Great Lakes Environmental and Infrastructure (GL E&I) used water provided by SAIIA construction from onsite source for bentonite slurry mixing and permeability testing. Test results of the site water are attached in Mix Design report.

Bentonite

Great Lakes Environmental and Infrastructure (GL E&I) used Western Gel API 13A bentonite supplied by Western Clay in Utah. This bentonite meets the American Petroleum Institute (API) “Specification No. 13A for Oil Well Drilling Fluid Materials”. A manufacturer’s data sheet is attached in Attachment A.

Supplemental Import (If Needed)

Great Lakes Environmental and Infrastructure (GL E&I) tested supplemental material supplied by SAIIA construction. The gradation of the material can be found in table below.


Section 3.0 Soil Sample Testing

Composite Samples

Great Lakes Environmental & Infrastructure (GL E&I) obtained soil samples from subsurface borings drilled adjacent to proposed cutoff wall alignment to obtain representative samples of the underlying soils. The soil samples were prepared, tested and based on the below results GL E&I performed the mix design with a composite samples of A and C. GL E&I ran the mix design with a composite of samples A and C since they demonstrated the lowest percentage passing the 200 sieve. GL E&I approach was to evaluate the worst case in performing the mix design. The following table summarizes the test results:

Bulk Sample

Description

(as described on bucket)

% Moisture % Passing % Retained Class

A Boring North

– 20-ft 15 22.7 77.3

Dark Brown Clayey Sand

(SC)

B Boring Middle

- 20-ft 19 28.1 71.9

Reddish Brown

Clayey Sand (SC)

C Boring South - 20-ft/30-ft

19 25.8 74.2 Brown

Clayey Sand (SC)

D Supplemental (If Needed)

13 28.1 71.9 Light Brown Clayey Sand

(SC)


Section 4.0 Mix Design

Mixes

Great Lakes Environmental & Infrastructure used a composite of borings of A and C and prepared three (3) mixes from the collected soil samples. The following table summarizes the test results:

Mix Preparation

Tolunay-Wong completed the mix preparation at their laboratory in Geismar, Louisiana. Prior to soil-bentonite mix preparation, Tolunay-Wong hydrated the bentonite slurry. The bentonite slurry had a viscosity of 47 MFV seconds and a density of 64.58 pcf. A copy of mix design report and slurry properties are attached in Attachment B. The bentonite slurry was mixed in a “Hobart” mixer. Source water was poured into the mixer and the mixing blade was turned on, then bentonite was added. The bentonite slurry was mixed for a period of three minutes. Tolunay-Wong hydrated the bentonite slurry for 4 hours prior to adding it to the soil or to the soil and dry bentonite mixtures.

Permeability Testing Testing was performed on samples AC-1, AC-2 and AC-3 and performed in accordance with ASTM D5084. Based on our measurements, each of the soil-bentonite test samples achieved the specified permeability requirements of 1x10-7 cm/sec or less. Test sample confining pressures and hydraulic gradients for the project were not specified in the project specifications.

Bulk Sample Description % Moisture LL PL PI

AC-1 AC Mix w/

5% Bentonite 47.6 47 15 32

AC-2 AC Mix w/

5% Bentonite + 0.5% Dry 46.8 48 15 33

AC-3

AC Mix w/ 5% Bentonite + 1.0% Dry 48.6 49 15 34


Permeability test results can be found in the mix design report. The following table summarizes the test results:

MIX NO. Sample Matrix Slurry Mix Permeability (cm/sec)

AC-1 AC Mix w/ Bentonite 5% Bentonite 1.5 x 10-8

AC-2 AC Mix w/ Bentonite +

0.5% Dry 5% Bentonite with

0.5% Dry Bentonite 2.0 x 10-8

AC-3 AC Mix w/ Bentonite +

1.0% Dry 5% Bentonite with

1.0% Dry Bentonite 1.8 x 10-8


Section 5.0 Discussions and Recommendations

Recommendation

Based on the results all mixes demonstrated a permeability less than the requirement of 1 x 10-7 cm/sec exceeding the project requirements. Great Lakes Environmental & Infrastructure recommends the use of mix AC-1, which is the use of site spoils and bentonite slurry to meet the requirements set forth in specifications.


ATTACHMENT A

Bentonite Certificate

Description PRIME-GEL is an API certified 200 mesh premium-grade sodium bentonite which

complies with the current edition of API Specification 13A, section 9 requirements. PRIME-GEL functions as a viscosifier and filtrate reducer in freshwater drilling systems.

Application

• Hydraulic Barriers

Seepage Cut-Off Walls Reservoirs Landfills Hazardous Material Containment

• Drilling Fluids Oil Well Drilling Mineral Exploration Drilling Water Well Drilling Seismic Drilling Caisson Drilling Horizontal Drilling

Typical Properties

Product Specification Typical PRIME-GEL API 13A, Sec. 9

Specifications Color

Density pH

Barrel Yield Viscometer 600 rpm

YP/PV Ratio Filtrate Volume

Residue > 75 Micrometers Moisture

tan to beige 66 PCF Compact

8.5 to 9.0 90 minimum

42 1.5

13.7 cm3 3.0 wt.%

7-12 wt.%

- - - -

30 minimum 3 maximum

15.0 cm3 maximum 4.0 wt.% maximum

-

Advantages

• American Petroleum Institute (API) Certified • NSF/ANSI Standard 60 Certified • Cools and lubricates drill bit • Mixes quickly and easily in freshwater or freshwater drilling fluids • Reduces fluid loss into the formation • Removes cuttings • Stabilizes borehole • Excellent hard water performance

PRIME-GEL Premium Sodium Bentonite / Viscosifier / Filtrate Reducer

Recommended Treatment

Approximate Amounts of PRIME-GEL Added to Fresh Water

Condition lb/100 gal lb/bbl kg/m3

Normal Drilling Conditions To stabilize caving formations To stop circulation loss

30-50 60-80 70-95

13-22 25-35 30-40

35-60 70-100 85-110

Packaging

PRIME-GEL is available in 50 and 100 lb. multi-wall paper bags, super sacks, and bulk shipments.

Availability

To order PRIME-GEL please contact us at:

Certified to NSF/ANSI 60

Western Clay Company PO BOX 127

Aurora, Utah 84620 Phone: 435-529-3281

Toll Free: 800-982-7960 Fax: 435-529-3714


ATTACHMENT B

Mix Design Report

Houston, TX • Dallas/Fort Worth, TX • Beaumont, TX • LaPorte, TX • New Orleans, LA • Baton Rouge, LA

6037 Commerce Point Drive • Geismar, Louisiana 70734 • Phone (225) 644-4966 • Fax (225) 644-4987

July 27, 2017

Great Lakes Environmental & Infrastructure

3541 Teasley Lane, Suite 200

Denton, Texas 76210

Attn: Mr. Rodney Louviere

[email protected]

Ref: Laboratory Testing Procedure and Results - Soil-Bentonite Slurry Mix Design

Plant Scholz Project - Slurry Trench Cutoff Wall

Sneads, Florida

TWE Project No.: 17.33.058 / Report No. 20200

Dear Mr. Louviere,

As requested, Tolunay-Wong Engineers, Inc. (TWE) performed laboratory testing for Great Lakes

Environmental and Infrastructure (GLEI) in support of a soil and bentonite mix design for a slurry

trench cutoff wall at the Plant Scholz Coal Combustion Residuals Surface Impoundment Project in

Sneads, Florida. This report summarizes our laboratory testing program and results for the referenced

project.

Bulk Soil Samples

On July 12, 2017, we received four (4) bulk soil samples from GLEI. Three of the bulk samples were

labeled according to the boring location and boring depth (i.e., Boring North, 20-ft). The fourth bulk

sample was labeled “Supplemental Material” which contained soil from an offsite borrow source. For

laboratory testing purposes, the four bulk samples were relabeled A, B, C, and D.

No. 200 sieve analyses were performed on the bulk samples. The results indicated that 71.9% to 77.3%

of the soil was retained on the sieve and each sample was classified as a Clayey Sand (SC). Moisture

contents for four samples ranged from 13% to 19%. A summary of the bulk sample laboratory test

results are provided in Table 1.

Table 1 – Bulk Soil Samples

Bulk

Sample Description

Sample

Moisture

% Passing

(No. 200)

% Retained

(No. 200) Soil Classification

A Boring North – 20-ft 15% 22.7 77.3 Dark Brown Clayey Sand(SC)

B Boring Middle - 20-ft 19% 28.1 71.9 Reddish Brown Clayey Sand(SC)

C Boring South - 20-ft/30-ft 19% 25.8 74.2 Brown Clayey Sand(SC)

D Supplemental Material 13% 28.1 71.9 Light Brown Clayey Sand(SC)

Report No. 20200 July 27, 2017

Houston, TX • Dallas/Fort Worth, TX • Beaumont, TX • LaPorte, TX • New Orleans, LA • Baton Rouge, LA Page 2 of 3

Soil-Bentonite Mix Design

The soil-bentonite mix design materials and proportions were provided to us by GLEI. Bulk Samples

A and C were combined and used as the design soil mixture. Atterberg Limits testing indicated a

Liquid Limit of 37, a Plastic Limit of 14, and a Plasticity Index of 23 for the AC soil mixture.

The slurry was mixed with a bentonite powder meeting API 13A specification and a representative

water sample that was shipped to us with the bulk samples. The bentonite powder and water were

mixed using a proportion of 5% bentonite powder by weight of water. Testing of the slurry was

performed using a Marsh funnel, a mud balance, and a pH meter. The Marsh funnel viscosity of the

slurry was 47 seconds and the unit weight of the slurry was 64.58-1b/ft3. The pH of the slurry was 8.6.

Chemical analysis of the water sample indicated a pH of 7.55, a hardness of 139 mg/L CaCO3, and a

total dissolved solids content of 182 mg/L.

Three test samples were prepared using 1500 grams of the AC soil mixture and the 5% bentonite

slurry. Each of the test samples was mixed with 400 mL of bentonite slurry to achieve an approximate

4” slump consistency. Two of the test samples were mixed with additional bentonite powder in

amounts based on the dry weight of the AC soil mixture. Specifically, sample AC-2 was mixed with

0.5% bentonite powder by dry soil weight and sample AC-3 was mixed with 1.0% bentonite powder

by dry soil weight. Atterberg limits testing was performed on each of the samples and the results are

summarized in Table 2.

Table 2 – Soil-Bentonite Test Samples

Test

Sample Description

Sample

Moisture LL PL PI

AC AC Mix - Soil Only 18.9% 37 14 23

AC-1 AC Mix w/ 5% Bentonite Slurry 47.6% 47 15 32

AC-2 AC Mix w/ 5% Bentonite Slurry + 0.5% Dry 46.8% 48 15 33

AC-3 AC Mix w/ 5% Bentonite Slurry + 1.0% Dry 48.6% 49 15 34

Permeability Testing

Permeability testing was performed on test samples AC-1, AC-2 and AC-3. The testing was performed

in general accordance with ASTM D5084-16a Standard Test Method for Measurement of Hydraulic

Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter. The Constant

Volume-Falling Head (by Mercury), Rising Tailwater Elevation Method was used (ASTM Method F).

Cylindrical acrylic molds were used to form the test specimens due to the relatively high slump

consistency of the test samples. Flexible membranes were placed inside of the acrylic molds and

together with the porous stones formed the initial test sample dimensions. Perforations in the acrylic

molds allowed the applied chamber pressure to reach the test samples. The samples were backpressure

saturated followed by a consolidation stage at approximately 10.4 psi (10.4 psi is the estimated

overburden at mid-height of a 30-ft slurry wall and 100 lb/ft3 soil-bentonite mixture estimated unit

weight).

Appendix A

No. 200 Sieve and Atterberg Limits Test Results

Appendix B

Permeability Test Results

17.33.058 Date: 7/20/17 CELL 1

Tech: RC

Sample ID:

Description:

Length(in) 2.57 Length(in) 2.05 DIA(in) LENGTH(in)

Diameter(in) 2.90 Diameter(in) 2.54 2.899 2.583

Length(cm) 6.54 Length(cm) 5.21 2.898 2.575

Diameter(cm) 7.36 Diameter(cm) 6.44 2.898 2.586

2.901 2.535

Specific Gravity 2.70 Assumed 2.898 2.587

Wet Weight(gm) 394.20 Wet Weight(gm) 333.47 Avg. 2.899 2.573

Area(cm2) 42.58 Area(cm

2) 32.57

Volume(cc) 278.29 Volume(cc) 169.84 DIA(in) LENGTH(in)

2.668 2.005

Wet Wt.+Tare(gm) 86.6 Wet Wt.+Tare(gm) 103.04 2.736 2.006

Dry Wt.+Tare(gm) 68.80 Dry Wt.+Tare(gm) 89.02 2.467 2.096

Tare Weight(gm) 31.41 Tare Weight(gm) 31.38 2.303 2.100

Moisture(%) 47.61 Moisture(%) 24.32 2.503 2.057

Avg. 2.535 2.053

Wet Weight(pcf) 88.4 Wet Weight(pcf) 122.6

Dry Weight(pcf) 59.9 Dry Weight(pcf) 98.6 Test Constants

Vol.Voids(cc) 179.2 Vol.Voids(cc) 70.7 M1= 0.03018

Void Ratio 1.807 Void Ratio 0.713 M2= 1.0409532

Saturation(%) 71.1 Saturation(%) 92.1 S= 0.1600774

Cell(psi) 55 a-in (cm2) 0.7671 G= 12.542

Backpressure(psi) 45 a-out (cm2) 0.0314 C= 0.000385

Actual Actual Elapsed a - in a - out Trial Hydraulic

Date Time Time Temperature Outflow Inflow Gradient Constant Conductivity

(mm/dd/yy) (hh:mm:ss) (seconds) (Fahren.) (Cels) (mm) (mm) T (20C,cm/sec)

11:54:00 AM 0 68.72 20.4 159 11.18 38.4

11:57:00 AM 180 68.72 20.4 158 11.22 38.1 0.07042 1.5E-08

11:57:00 AM 0 68.72 20.4 158 11.22 38.1

12:00:00 PM 180 68.72 20.4 157 11.27 37.8 0.07092 1.5E-08

12:00:00 PM 0 68.72 20.4 157 11.27 37.8

12:03:00 PM 180 68.72 20.4 156 11.31 37.6 0.07143 1.5E-08

12:03:00 PM 0 68.72 20.4 156 11.31 37.6

12:06:00 PM 180 68.72 20.4 155 11.35 37.3 0.07194 1.5E-08

1.5E-08

EEH Date: 7/22/17 Date: 7/22/17

Sample No. 1

AC Mix w/ 5% Bentonite Slurry

Our letters and reports are for the exclusive use of the CLIENT. This document shall not be reproduced, except in full, with out our prior written approval. Our letters and reports

apply only to the material(s) tested and/or inspected and are not necessarily indicative of the quality of apparently identical material(s).

Great Lakes

Project Number:

Project Name:

Client Name:

Address:

Coefficient of permeability, k20º (cm/sec)

Before Test After Test

Specimin Data Specimin Data

ASTM D 5084; Falling Head/Rising Tail Method

Constant Volume Apparatus

AFTER

BEFORE

Calculated By: Reviewed By: PH

Moisture Data

Weight/Volume Data

Moisture Data

Weight/Volume Data

7/24/2017

Tolunay-Wong Engineers, Inc.

17.33.058 Date: 7/20/17 CELL 1

Tech: RC

Sample ID:

Description:





2.918 2.946




2) 30.34


2.528 2.465

Wet Wt.+Tare(gm) 101 Wet Wt.+Tare(gm) 132.12 2.382 2.487




Avg. 2.447 2.514






Cell(psi) 55.8 a-in (cm2) 0.7671 G= 12.542





5:57:00 AM 0 67.64 19.8 159 11.18 31.4

6:00:00 AM 180 67.64 19.8 158 11.22 31.1 0.07042 2.0E-08

6:00:00 AM 0 67.64 19.8 158 11.22 31.1

6:03:00 AM 180 67.64 19.8 157 11.27 30.9 0.07092 2.0E-08

6:03:00 AM 0 67.64 19.8 157 11.27 30.9

6:06:00 AM 180 67.64 19.8 156 11.31 30.7 0.07143 2.0E-08

6:06:00 AM 0 67.64 19.8 156 11.31 30.7

6:09:00 AM 180 67.64 19.8 155 11.35 30.5 0.07194 2.1E-08

2.0E-08

EEH Date: 7/25/17 Date: 7/25/17

Sample No. 2

AC Mix w/ 5% Bentonite Slurry + 0.5% Dry



Great Lakes

Project Number:

Project Name:

Client Name:

Address:






AFTER

BEFORE


Moisture Data

Weight/Volume Data

Moisture Data

Weight/Volume Data

7/25/2017


17.33.058 Date: 7/20/17 CELL 1

Tech: RC

Sample ID:

Description:





2.942 2.928




2) 29.21


2.376 2.378

Wet Wt.+Tare(gm) 97.6 Wet Wt.+Tare(gm) 135.16 2.299 2.382




Avg. 2.401 2.397






Cell(psi) 55.7 a-in (cm2) 0.7671 G= 12.542





5:31:00 AM 0 69.44 20.8 175 10.53 36.6

5:34:00 AM 180 69.44 20.8 174 10.57 36.3 0.06329 1.7E-08

5:34:00 AM 0 69.44 20.8 174 10.57 36.3

5:37:00 AM 180 69.44 20.8 173 10.61 36.1 0.06369 1.8E-08

5:37:00 AM 0 69.44 20.8 173 10.61 36.1

5:40:00 AM 180 69.44 20.8 172 10.65 35.9 0.06410 1.8E-08

5:40:00 AM 0 69.44 20.8 172 10.65 35.9

5:43:00 AM 180 69.44 20.8 171 10.69 35.7 0.06452 1.8E-08

1.8E-08

EEH Date: 7/25/17 Date: 7/25/17

Sample No. 3

AC Mix w/ 5% Bentonite Slurry + 1.0% Dry



Great Lakes

Project Number:

Project Name:

Client Name:

Address:






AFTER

BEFORE


Moisture Data

Weight/Volume Data

Moisture Data

Weight/Volume Data

7/24/2017


Appendix C

Analytical Water Test Results

Cover

ANALYTICAL RESULTS

PERFORMED BY

GCAL, LLC 7979 Innovation Park Dr. Baton Rouge, LA 70820

Report Date 07/18/2017

GCAL Report 217071236

9999999999

Project Project Shoalz 17.33.58

Deliver To Additional Recipients Brady Turk NONE Tolunay-Wong Engineers 6037 Commerce Pointe Drive Geismar, LA 70734 225-202-5488

NELAP CERTIFICATE NUMBER: 01955

DOD ELAP CERTIFICATE NUMBER: L14-243

Page 1 of 11GCAL Report#: 217071236

Report#: 217071236

Project ID: Project Shoalz 17.33.58 Report Date: 07/18/2017

Laboratory Endorsement Sample analysis was performed in accordance with approved methodologies provided by the Environmental Protection Agency or other recognized agencies. The samples and their corresponding extracts will be maintained for a period of 30 days unless otherwise arranged. Following this retention period the samples will be disposed in accordance with GCAL's Standard Operating Procedures.

Common Abbreviations that may be Utilized in this Report

ND Indicates the result was Not Detected at the specified reporting limit NO Indicates the sample did not ignite when preliminary test performed for EPA Method 1030 DO Indicates the result was Diluted Out MI Indicates the result was subject to Matrix Interference TNTC Indicates the result was Too Numerous To Count SUBC Indicates the analysis was Sub-Contracted FLD Indicates the analysis was performed in the Field DL Detection Limit DL Diluted analysis – when appended to Client Sample ID LOD Limit of Detection LOQ Limit of Quantitation RE Re-analysis CF HPLC or GC Confirmation 00:01 Reported as a time equivalent to 12:00 AM

Reporting Flags that may be Utilized in this Report

J or I Indicates the result is between the MDL and LOQ J DOD flag on analyte in the parent sample for MS/MSD outside acceptance criteria U Indicates the compound was analyzed for but not detected B or V Indicates the analyte was detected in the associated Method Blank Q Indicates a non-compliant QC Result (See Q Flag Application Report) * Indicates a non-compliant or not applicable QC recovery or RPD – see narrative E The result is estimated because it exceeded the instrument calibration range E Metals - % diference for the serial dilution is > 10% P RPD between primary and confirmation result is greater than 40

Sample receipt at GCAL is documented through the attached chain of custody. In accordance with NELAC, this report shall be reproduced only in full and with the written permission of GCAL. The results contained within this report relate only to the samples reported. The documented results are presented within this report. This report pertains only to the samples listed in the Report Sample Summary and should be retained as a permanent record thereof. The results contained within this report are intended for the use of the client. Any unauthorized use of the information contained in this report is prohibited. I certify that this data package is in compliance with The NELAC Institute (TNI) Standard 2009 and terms and conditions of the contract and Statement of Work both technically and for completeness, for other than the conditions in the case narrative. Release of the data contained in this hardcopy data package and in the computer readable data submitted has been authorized by the Quality Assurance Manager or his/her designee, as verified by the following signature. Estimated uncertainty of measurement is available upon request. This report is in compliance with the DOD QSM as specified in the contract if applicable.

Authorized Signature GCAL Report 217071236


Report#: 217071236


Certifications

Certification Certification Number

DOD ELAP L14-243

Alabama 01955

Arkansas 12-060-0

Colorado 01955

Delaware 01955

Florida E87854

Georgia 01955

Hawaii 01955

Idaho 01955

Illinois 200048

Indiana 01955

Kansas E-10354

Kentucky 95

Louisiana 01955

Maryland 01955

Massachusetts 01955

Michigan 01955

Mississippi 01955

Missouri 01955

Montana N/A

Nebraska 01955

New Mexico 01955

North Carolina 618

North Dakota R-195

Oklahoma 9403

South Carolina 73006001

South Dakota 01955

Tennessee 01955

Texas T104704178

Vermont 01955

Virginia 460215

USDA Soil Permit P330-10-00117


Report#: 217071236


Case Narrative

Client: Tolunay-Wong Engineers Report: 217071236

Gulf Coast Analytical Laboratories received and analyzed the sample(s) listed on the Report Sample Summary page of this report. Receipt of the sample(s) is documented by the attached chain of custody. This applies only to the sample(s) listed in this report. No sample integrity or quality control exceptions were identified unless noted below.

METALS

In the SM 2340 B analysis, sample 21707123601 (WS-1) had to be diluted in order to bracket the concentration of target analyte(s) within the calibration range of the instrument.

GENERAL CHEMISTRY

pH is a field parameter and should be performed within 15 minutes after sample collection.

MISCELLANEOUS

Sample 21707123601 (WS-1), container ID 21707123601-2 had to be preserved at the laboratory with HNO3. This container was used to analyze SM 2340 B.


Report#: 217071236


Sample Summary

GCAL ID Client ID Matrix Collect Date/Time Receive Date/Time

21707123601 WS-1 Water 07/12/2017 13:00 07/12/2017 14:00


Report#: 217071236


Detect Summary

Summary of Compounds Detected WS-1

WS-1 Collect Date 07/12/2017 13:00 GCAL ID 21707123601

Receive Date 07/12/2017 14:00 Matrix Water

SM 2340 B

SM 2340 B

CAS# Parameter Result LOQ Reg Limit Units

000-01-5 Hardness 139 16.6

mg/L CaCO3

SM 2540 C-2011

SM 2540 C-2011


WET-035 Total Dissolved Solids(TDS) 182 10.0

mg/L

SM 4500-H+ B/EPA 9040C

SM 4500-H+ B/EPA 9040C


pH pH 7.55 1.00

pH unit


Report#: 217071236


Sample Results

Sample Results WS-1

WS-1 Collect Date 07/12/2017 13:00 GCAL ID 21707123601

Receive Date 07/12/2017 14:00 Matrix Water

SM 2340 B

SM 2340 B

Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch

07/13/2017 14:00 614055 EPA 3010A 10 07/14/2017 11:15 AWG 614171


000-01-5 Hardness 139 16.6

mg/L CaCO3

SM 2540 C-2011

SM 2540 C-2011


NA NA NA 1 07/17/2017 12:02 AJE 614313


WET-035 Total Dissolved Solids(TDS) 182 10.0

mg/L

SM 4500-H+ B/EPA 9040C

SM 4500-H+ B/EPA 9040C


NA NA NA 1 07/12/2017 16:32 DLS 614031


pH pH 7.55 1.00

pH unit


Report#: 217071236


QC Summary

Inorganics QC Summary Inorganics

Analytical Batch 614171 Prep Batch 614055 Prep Method EPA 3010A

Client ID GCAL ID

Sample Type Prep Date

Analysis Date Matrix

MB614055 1701815 MB 07/13/2017 14:00 07/14/2017 11:08 Water

LCS614055 1701816 LCS 07/13/2017 14:00 07/14/2017 11:12 Water

SM 2340 B Units

Result mg/L CaCO3

LOQ Spike

Added Result %R

Control Limits%R

Hardness 000-01-5 ND 1.66 83.0 92.2 111 83 - 118


Report#: 217071236


General Chemistry QC Summary General Chemistry

Analytical Batch 614031

Client ID GCAL ID



SOURCE 21707121101 SAMPLE NA 07/12/2017 15:31 Water

1701415DUP 1701634 DUP NA 07/12/2017 15:31 Water

SM 4500-H+ B/EPA 9040C Units

Result pH unit

LOQ Result RPD

RPD Limit

pH pH 8.44 1.00 8.43 0 6


Client ID GCAL ID



MB614313 1703053 MB NA 07/17/2017 12:02 Water

LCS614313 1703054 LCS NA 07/17/2017 12:02 Water

SM 2540 C-2011 Units

Result mg/L LOQ

Spike Added

Result %R Control

Limits%R

Total Dissolved Solids(TDS) WET-035 ND 10.0 1000 1030 103 80 - 120


Client ID GCAL ID



BC2-CT1 21707133601 SAMPLE NA 07/17/2017 12:02 Water

1702095DUP 1703055 DUP NA 07/17/2017 12:02 Water

SM 2540 C-2011 Units

Result mg/L LOQ

Result RPD RPD Limit

Total Dissolved Solids(TDS) WET-035 1930 10.0 1950 1 5.4


of 11GCAL Report#: 217071236

SAMPLE RECEIVING CHECKLIST *217071236*SAMPLE DELIVERY GROUP 217071236

Client PM SAB3 Transport Method4952 - Tolunay-Wong Engineers CUST

Profile Number Received By273756 Reese, Sean M.

Line Item(s) Receive Date(s)1 - Water Sample 07/12/17

CHECKLIST YES NO

Samples received with proper thermal and chemical preservation?

Radioactivity is <1600 cpm? If no, record cpm value in notes section.

When used, were custody seals intact?

COC relinquished and complete (including sampleIDs, collect dates/times, and sampler)?

All containers received in good condition and within hold time?

All sample labels and containers received match the chain of custody?

Preservation checked at receipt if necessary? Except: VOC, Coliform, TOC, O&G, DOC

Preservative added to any containers?

VOC water containers received with headspace < 6mm?

Samples collected in containers provided by GCAL?

COOLERS

Airbill Thermometer ID: E29 Temp oC

2.1

DISCREPANCIESNone

LAB PRESERVATIONS

SM 2340 B \ HNO3

NOTES

Revision 1.6 Page 1 of 1


Appendix D

USACE Laboratory Validation

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