A01.10_Attachment_04_Water_Testing_and_Evaluation_Report_(17-R-0006).pdf

Water Testing and Evaluation Report, Lake Isabella Dam

January 2017

Prepared by

SOIL DESIGN SECTION

GEOTECHNICAL ENGINEERING BRANCH

Water Testing and Evaluation Report, Lake Isabella Dam

Table of Contents

1. GENERAL INFORMATION

2. MATERIAL REQUIREMENTS

3. MATERIAL SOURCES

4. MATERIAL EVALUATION

5. RECOMMENDATION

6. CONCLUSION

APPENDICES

APPENDIX 1: FY12 Water Testing Laboratory Results, Kern River water testing.

APPENDIX 2: FY14 -15 Water Testing Laboratory Results, Lake Isabella Reservoir and Auxiliary Dam well water testing.

1. General Information Water will be required for aggregate production and processing, moisture conditioning aggregates for handling and compaction, concrete surface preparation and joint cleaning, rock foundation surface preparation, cleaning drill holes, mixing and curing concrete and grout mixtures, and other miscellaneous applications. The objective of this report is to provide information on water quality for the on-site water sources to support the Lake Isabella project.

2. Material Requirements Water must be clean, free of organic material, sediments, and contaminants that interfere with cement hydration. Water from on-site water sources must conform to CRD-C 400 and ASTM C1602.

3. Material Sources Three on site sources were identified for this effort; (1) Kern River immediately downstream of the Main Dam outlet works, (2) Lake Isabella Reservoir immediately upstream of the Main Dam, (3) Well at the toe of the Auxiliary Dam, (reference Figure No.1).

Branch file data includes Design Memorandum No. 6 Isabella Lake Spillway and Dam Modifications, dated September 1983 Chapter VIII. Design Memorandum No. 6 reports water from Isabella Lake and local wells is available for construction purposes including concrete mixing and curing. No problems are anticipated in developing an adequate supply of water for concrete construction uses.”

4. Material Evaluation Water Sampling and Testing: Samples of materials obtained from the prospective material sources were sent to a commercial laboratory for testing.

Water samples were collected from the Kern River downstream of the Main Dam outlet structure quarterly during FY12 and tested in accordance with CRD-C 400, (reference Appendix 1). Water from the Kern River immediately downstream of the Main Dam outlet structure at the time of sampling was determined to be suitable for use in mixing and curing concrete mixtures.

Water samples from the well at the toe of the Auxiliary Dam and from the Lake Isabella Dam Reservoir were collected quarterly during FY14 and FY15 and tested in accordance with CRD- C 400 and for time of set in accordance with ASTM C403, (reference Appendix 2). Water from the well was determined to be suitable for use in mixing and curing concrete mixtures.

Water from the Lake Isabella Dam reservoir was determined to be unsuitable for use in mixing and curing concrete mixtures.

The Kern River water quality downstream of the main dam will be influenced by the water quality in the reservoir and may be inconsistent. Therefore, water from the Lake Isabella reservoir and Kern River is unsuitable for use in aggregate production and processing, aggregate moisture conditioning, concrete surface preparation and joint cleaning, rock foundation surface preparation, cleaning drill holes, and for mixing and curing concrete and grout mixtures.

5. Recommendation The Lake Isabella Dam reservoir is relatively shallow and warmer water which encourage the growth of algae and other organic material. Algae typically remains near the surface in the littoral (light) zone. Water sampling was performed at 20 - 30 foot depth to in an attempt to avoid algae and suspended material. However, wind and wave action on shallow reservoirs result in mixing action in the reservoir. Therefore, algae, organic material, and suspended sediments, in the reservoir water is not confined to the littoral zone.

6. Conclusion Water shall be obtained from wells downstream of the Auxiliary Dam and/or public water supply. Depending on water demand a group of wells may be required. Water obtained from on-site sources must be tested in accordance with ASTM C1602 prior to use and at least quarterly to verify water quality. Water from Lake Isabella reservoir and Kern River shall not be used for aggregate production and processing, moisture conditioning aggregates, concrete surface preparation and joint cleaning, rock foundation surface preparation, cleaning drill holes, and for mixing and curing concrete and grout mixtures.

Figure No. 1 Lake Isabella Dam, map of approximate water sampling locations.

APPENDIX 1

FY12 Water Testing Laboratory Results

Kern River Water Testing

DATE:

TO: Bill Halczak JOB NO:

US Army Corps of Engineers, Sacramento District LAB LOG:

CESPK-ED-GS

1325 J Street

Sacramento, CA 95814-2922

RE: Lab Report: Lake Isabella DSAP Water Analysis

Enclosed are results for: Samples Received -

Code Item Quantity

24005 1

24006 1

24000 1

24001 1

24002 1

24003 1

Sincerely, at 1-530-272-2448. This testing is based up on accepted industry practice as well as the for the test to working with you again. If you have any questions or require any additional information, please call us

Staining Properties of Water, CRC #401-75

Thank you for consulting Geo-Logic Associates for your material testing requirements. We look forward method listed. These results apply only to the samples supplied and tested for the above referenced job.

Ph of Water EPA 150.1

Iron Content, SM3120B

Sulfate, SM4500SO4

Effect of mix Water on Mortar Strength, CRC# 405-79

Chloride, SM 4500CL-B

Technical DirectorLaboratory Project Manager

Reviewed By: Kenneth R. CrileyPrepared By: Jodi Laferte

January 6, 2012

3305.0

2011.A154

November 17, 2011

Geo-Logic Associates 143E Spring Hill Drive Grass Valley, CA 95945

USA

T+1 530 272 2448 F+1 530 272 8533 www.geo-logic.com

LT-1-AF (rev.2-10-04)

Client : Project No: Lab Log:

USACOE, Sacramento District Project Name: Report Date:

Lake Isabella DSAP Water Analysis

Staining Properties of Mix Water

CRD-C-401-75

7-day = 100+ Slight Stain

28-day = 97

7-day = 197 No Visible staining

28-day = 97

Notes:

Entered By: Rev. By: Lab Log:

Soil Summary Report (rev. 7/28/00 ncl) JL krc

3027B

Mix Water Sample

FL-S-2

3305A

This testing is based up on accepted industry practice as well as the test method listed. These results apply only to the samples supplied and tested for the above referenced job.

SUMMARY REPORT

January 3, 2012

Water Sample

Water Sample

2011.A154

L:\labexcel\projects\1920\2011.A\3055-soil-rp

LSN Sample ID Sample Description

Compressive Strength

CRD-C-406-79

Percent of Standard, %

Client : Project No: Lab Log:

US Army Corps of Engineers Project Name: Report Date:

Lake Isabella DSAP Water Analysis

Staining Properties of Mix Water

CRD-C-401-75

7-day = 127 Slight staining

28-day = 107

Notes:

Entered By: Rev. By: Lab Log:

Soil Summary Report (rev. 7/28/00 ncl)

KRC

Compressive Strength

CRD-C-406-79

Percent of Standard, %

2011.A154

L:\labexcel\projects\1920\2011.A\3341-soil-rp

LSN Sample ID Sample Description

SUMMARY REPORT

April 20 2012

Water Sample

This testing is based up on accepted industry practice as well as the test method listed. These results apply only to the samples supplied and tested for the above referenced job.

Mix Water 3341A

LAKE ISABELLA WATER TESTING Project No. E12017.002 LABORATORY TEST RESULTS 25 July 2012

Laboratory Test Results

Staining properties of water (CRC-C 401)

The condition of the test mortar after testing does not appear to have any stain or discoloration.

Effect of mixing water on compressive strength (CRD-C 406)

Table 1

Sample Number & Water Type

Age (Days) Area (sq in) Ultimate Load

(lbs)

PSI

A Distilled 7 4.0 20995 5250

B Distilled 28 4.0 21254 5310

C Distilled 28 4.0 20663 5170

A Lake DSAP 7 4.0 21225 5310

B Lake DSAP 28 4.0 21970 5490

C Lake DSAP 28 4.0 22552 5640

APPENDIX 2

FY14 -15 Water Testing Laboratory Results

Lake Isabella Reservoir and Auxiliary Dam Well Water Testing

Project No. E12017.009 16 July 2014

US Army Corps of Engineers

Sacramento District

1325 J Street

Sacramento, CA 95814-2922

Attention: Ms. Fiorella Fuentes

Subject: Final Laboratory Test Results Lake Isabella Auxiliary Dam, Water Testing W91238-12-A-0004-0009-02

Dear Ms. Fuentes:

In accordance with your request, selected physical property tests of cementitious mortars made with various different waters have been performed. The waters used in the physical property tests were Lake Water and Well Water, each of which was supplied by the US Army Corps of Engineers (USACE) in plastic 1-gallon containers.

We also used distilled water purchased from a local retail store in the fabrication of control specimens. In addition, samples of the Lake Water and Well Water were submitted to Sunland Analytical Lab for chemical analysis.

The purpose of the tests was to provide data to the USACE to aid in the comparison of the different waters (Lake Water, Well Water, and distilled water) to produce concrete that meets applicable USACE and ASTM International (ASTM) standards. The tests performed were:

� Compressive Strength, CRD-C 406-79 � Setting Time of Concrete, ASTM C403 � Staining Properties of Water, CRD-C 401-75 � pH of Water � Sulfate Content of Water � Chloride Content of Water � Iron Content of Water

The physical property tests are discussed below, and the results of the chemical tests are presented in the attached letter of results from Sunland Analytical Lab.

Lake Isabella Water Testing Project No. 12017.009 Page 2 16 July 2014

Compressive Strength Testing

Cubes of cement mortar were made using each of the different waters following the criteria in CRD-C 406-79. This standard provides the quantities of materials used to make the cement mortar, which are:

� 600 grams of cement � 360 grams of water (this results in a water:cement ratio of 0.60) � 2,100 grams of graded standard Ottawa sand

Three sets of six cubes were fabricated for each water type, with three cubes from each set being tested at 7-days age, and three cubes from each set being tested at 28-days age. Results of these tests are presented below.

Water Type

Specimen Age, days

Individual Specimen

Unconfined Compressive Strength, psi

Average Unconfined

Compressive Strength, psi

Percent of Distilled Water

2,640

2,620 7

2,780

2,680 105

3,660

3,390

Lake

3,640

3,560 98

2,700

2,470 7

2,660

2,610 102

3,400 3,710

Well

3,830

3,650 100

2,440

2,520 7

2,690

2,550 100

3,670 3,630

Distilled

3,610

3,640 100

Specimen Size: 2 x 2 x 2 inches Cement Used: Basalite, Type II/V, Manufactured May 28, 2014

Page 3 16 July 2014

Setting Time of Concrete

Setting time of concrete was tested following the criteria in ASTM C1602-12. This standard is a specification for water used in making concrete, and it directs setting time tests to be performed in accordance with ASTM C403. ASTM C1602 specifies the mortar batches be made with the following quantities of materials:

� Portland cement, 1 part by mass � ASTM C33 concrete sand, 2.25 parts by mass � Water, to produce a water:cement ratio of 0.50

Results of the tests are as follows:

Set

Individual Trial Setting

Time, minutes

Average Setting Time, minutes

Deviation from Control, minutes

207 Initial

213 +20

Lake

Final

278 +2

186 Initial

193 0

Well

Final

276 0

186 Initial

193 NA

Distilled

Final

276 NA

Detailed test data for each test is attached.

Page 4 16 July 2014

Staining Properties of Water

The staining properties of the Lake Water and Well Water were tested in accordance with CRD-C 401-75. Results of the tests were visually determined by comparison to a control specimen, and are as follows:

Water Type Staining Property Lake Water Slight Stain Well Water No Stain

Photograph of staining test specimens, after completion of the tests.

Well Water Lake Water

Control Specimen

Page 5 16 July 2014

Limitations

Our work was performed in a manner consistent with that level of care and skill ordinarily exercised by other members of Youngdahl Consulting Group Inc.’s profession practicing in the same locality, under similar conditions and at the date the services were provided. Our conclusions, opinions and recommendations are based on a limited number of observations and data. It is possible that conditions could vary between or beyond the data evaluated. Youngdahl Consulting Group, Inc. makes no guarantee or warranty, express or implied, regarding the services, communication (oral or written), report, opinion, or instrument of service provided.

Closure

If you have any questions regarding this letter report, or need additional information, please call us at (916) 933-0633.

Sincerely, Jeffry Cannon

Laboratory Department Head

Attachments:

� Time of Setting of Concrete Mixtures, 3 Pages � Chemical Analysis of Water, by Sunland Analytical Lab, Dated 06/11/2014, 4 Pages

Project Name: Lake Isabella Water Testing

Project No.: E12017.009

Date Tested: June 19, 2014

Sample: Lake Water

Cement: Basalite, Type II/V, Manufactured May 28, 2014

Material Proportions:

Sand: Standard Graded Ottawa Sand, 2.25 parts by mass

Cement: Basalite, Type II/V, 1 part by mass

Water: Lake Water, water:cement ratio = 0.50

Test Results:

Trial 1 Trial 2 Trial 3 Average 213 207 218 213

276 277 282 278

Initial Set: Penetration Resistance at 500 psi

Final Set: Penetration Resistance at 4,000 psi

Report Date: June 25, 2014 Reviewed By: JLC

ASTM C403-08, Time of Setting of Concrete Mixtures by Penetration Resistance

Test specimens were fabricated in accordance with ASTM C1602-12, Mixing Water Used in the Production of Hydraulic Cement Concrete;

Section 5.3.3, Testing Using Laboratory Mortar Batches

Duration, minutes

Initial Set

Final Set

Trial 1

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 2

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 3

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Date Tested: June 19, 2014

Sample: Well Water

Cement: Basalite, Type II/V, Manufactured May 28, 2014

Material Proportions:

Sand: Standard Graded Ottawa Sand, 2.25 parts by mass

Cement: Basalite, Type II/V, 1 part by mass

Water: Well Water, water:cement ratio = 0.50

Test Results:

Trial 1 Trial 2 Trial 3 Average 207 186 187 193

277 273 279 276

Initial Set: Penetration Resistance at 500 psi

Final Set: Penetration Resistance at 4,000 psi

Report Date: June 25, 2014 Reviewed By: JLC

Test specimens were fabricated in accordance with ASTM C1602-12, Mixing Water Used in the Production of Hydraulic Cement Concrete;

Section 5.3.3, Testing Using Laboratory Mortar Batches

Duration, minutes

Initial Set

Final Set

ASTM C403-08, Time of Setting of Concrete Mixtures by Penetration Resistance

Trial 1

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 2

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 3

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p

Date Tested: June 19, 2014

Sample: Distilled Water (Control Sample)

Cement: Basalite, Type II/V, Manufactured May 28, 2014

Material Proportions:

Sand: Standard Graded Ottawa Sand, 2.25 parts by mass

Cement: Basalite, Type II/V, 1 part by mass

Water: Distilled Water, water:cement ratio = 0.50

Test Results:

Trial 1 Trial 2 Trial 3 Average 205 186 187 193

277 273 279 276

Initial Set: Penetration Resistance at 500 psi

Final Set: Penetration Resistance at 4,000 psi

Report Date: June 25, 2014 Reviewed By: JLC

ASTM C403-08, Time of Setting of Concrete Mixtures by Penetration Resistance

Test specimens were fabricated in accordance with ASTM C1602-12, Mixing Water Used in the Production of Hydraulic Cement Concrete;

Section 5.3.3, Testing Using Laboratory Mortar Batches

Duration, minutes

Initial Set

Final Set

Trial 1

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 2

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 3

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p

20 November 2014

US Army Corps of Engineers

Sacramento District

Subject: Final Laboratory Test Results September 2014 Water Sampling mortars made with various different waters have been performed. The waters used in the physical property tests were Lake Water and Well Water, each of which was supplied by the US Army Corps of Engineers (USACE) in plastic 1-gallon containers.

We also used distilled water purchased from a local retail store in the fabrication of control specimens. In addition, samples of the Lake Water and Well Water were submitted to Sunland Analytical Lab for chemical analysis.

The purpose of the tests was to provide data to the USACE to aid in the comparison of the different waters (Lake Water, Well Water, and distilled water) to produce concrete

� Staining Properties of Water, CRD-C 401-75 � pH of Water � Sulfate Content of Water

Page 2 20 November 2014

Specimen Age, days

Individual Specimen

Unconfined Compressive Strength, psi

Average Unconfined

Compressive Strength, psi

Percent of Distilled Water

2,260

2,590 7

2,480

2,440 89

3,410

3,260

Lake

3,450

3,370 84

2,990

3,010 7

3,040

3,010 110

4,220 4,110

Well

4,270

4,200 105

2,880

2,660 7

2,690

2,740 100

3,980 3,980

Distilled

4,040

4,000 100

Cement Used: Basalite, Type II/V, Manufactured September 19, 2014

Page 3 20 November 2014 standard is a specification for water used in making concrete, and it directs setting time

Set

Individual Trial Setting

Time, minutes

Average Setting Time, minutes

Deviation from Control, minutes

183 Initial

193 -40

Lake

Final

281 -3

205 Initial

204 -29

Well

Final

282 -2

235 Initial

233 NA

Distilled

Final

284 NA

Page 4 20 November 2014

Lake Water Moderately Stain Well Water Light Stain

Page 5 20 November 2014 ordinarily exercised by other members of Youngdahl Consulting Group Inc.’s profession practicing in the same locality, under similar conditions and at the date the services were provided. Our conclusions, opinions and recommendations are based on a limited number of observations and data. It is possible that conditions could vary between or beyond the data evaluated. Youngdahl Consulting Group, Inc. makes no guarantee or

� Chemical Analysis of Water, by Sunland Analytical Lab, Dated 11/12/2014, 2 Pages

Date Tested: October 2, 2014

Sample: Distilled Water (Control Sample)

Cement: Basalite, Type II/V, Manufactured 9/19/14

Material Proportions:

Sand: ASTM C33 Concrete Sand, 2.25 parts by mass

Cement: Basalite, Type II/V, 1 part by mass

Water: Distilled Water, water:cement ratio = 0.50

Test Results:

Trial 1 Trial 2 Trial 3 Average 227 235 236 233

282 285 284 284

Initial Set: Penetration Resistance at 500 psi

Final Set: Penetration Resistance at 4,000 psi

Report Date: November 20, 2014 Reviewed By: JLC

ASTM C403-08, Time of Setting of Concrete Mixtures by Penetration Resistance

Test specimens were fabricated in accordance with ASTM C1602-12, Mixing Water Used in the Production of Hydraulic Cement Concrete;

Section 5.3.3, Testing Using Laboratory Mortar Batches

Duration, minutes

Initial Set

Final Set

Trial 1

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 2

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 3

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p

Date Tested: October 2, 2014

Sample: Lake Water

Cement: Basalite, Type II/V, Manufactured 9/19/14

Material Proportions:

Sand: ASTM C33 Concrete Sand, 2.25 parts by mass

Cement: Basalite, Type II/V, 1 part by mass

Water: Lake Water, water:cement ratio = 0.50

Test Results:

Trial 1 Trial 2 Trial 3 Average 213 183 183 193

282 281 280 281

Initial Set: Penetration Resistance at 500 psi

Final Set: Penetration Resistance at 4,000 psi

Report Date: November 20, 2014 Reviewed By: JLC

ASTM C403-08, Time of Setting of Concrete Mixtures by Penetration Resistance

Test specimens were fabricated in accordance with ASTM C1602-12, Mixing Water Used in the Production of Hydraulic Cement Concrete;

Section 5.3.3, Testing Using Laboratory Mortar Batches

Duration, minutes

Initial Set

Final Set

Trial 1

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 2

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 3

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p

Date Tested: October 2, 2014

Sample: Well Water

Cement: Basalite, Type II/V, Manufactured 9/19/14

Material Proportions:

Sand: ASTM C33 Concrete Sand, 2.25 parts by mass

Cement: Basalite, Type II/V, 1 part by mass

Water: Well Water, water:cement ratio = 0.50

Test Results:

Trial 1 Trial 2 Trial 3 Average 203 205 205 204

279 282 284 282

Initial Set: Penetration Resistance at 500 psi

Final Set: Penetration Resistance at 4,000 psi

Report Date: November 20, 2014 Reviewed By: JLC

Test specimens were fabricated in accordance with ASTM C1602-12, Mixing Water Used in the Production of Hydraulic Cement Concrete;

Section 5.3.3, Testing Using Laboratory Mortar Batches

Duration, minutes

Initial Set

Final Set

ASTM C403-08, Time of Setting of Concrete Mixtures by Penetration Resistance

Trial 1

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 2

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 3

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p

7 January 2015

US Army Corps of Engineers

Sacramento District

Subject: Laboratory Test Results December 2014 Water Sampling mortars made with various different waters have been performed. The waters used in the physical property tests were Lake Water and Well Water, each of which was supplied by the US Army Corps of Engineers (USACE) in plastic 1-gallon containers.

We also used distilled water purchased from a local retail store in the fabrication of control specimens. In addition, samples of the Lake Water and Well Water were submitted to Sunland Analytical Lab for chemical analysis.

The purpose of the tests was to provide data to the USACE to aid in the comparison of the different waters (Lake Water, Well Water, and distilled water) to produce concrete

� Staining Properties of Water, CRD-C 401-75 � pH of Water � Sulfate Content of Water

Page 2 7 January 2015

Specimen Age, days

Individual Specimen

Unconfined Compressive Strength, psi

Average Unconfined

Compressive Strength, psi

Percent of Distilled Water

1,970

2,190 7

2,220

2,130 92

3,920

3,750

Lake

3,840

3,840 104

1,800

1,890 7

2,330

2,010 87

3,410 3,540

Well

3,630

3,530 96

2,050

2,480 7

2,400

2,310 100

3,840 3,630

Distilled

3,610

3,690 100

Cement Used: Basalite, Type II/V, Manufactured November 18, 2014

Page 3 7 January 2015 standard is a specification for water used in making concrete, and it directs setting time

Set

Individual Trial Setting

Time, minutes

Average Setting Time, minutes

Deviation from Control, minutes

243 Initial

233 +8

Lake

Final

343 +15

220 Initial

218 -7

Well

Final

326 -2

225 Initial

225 NA

Distilled

Final

328 NA

Page 4 7 January 2015

Lake Water Moderate Well Water Slight

Page 5 7 January 2015 ordinarily exercised by other members of Youngdahl Consulting Group Inc.’s profession practicing in the same locality, under similar conditions and at the date the services were provided. Our conclusions, opinions and recommendations are based on a limited number of observations and data. It is possible that conditions could vary between or beyond the data evaluated. Youngdahl Consulting Group, Inc. makes no guarantee or

� Chemical Analysis of Water, by Sunland Analytical Lab, Dated 12/10/2014, 2 Pages

Date Tested: December 9, 2014

Sample: Lake Water

Cement: Basalite, Type II/V, Manufactured 11/18/14

Material Proportions:

Sand: ASTM C33 Concrete Sand, 2.25 parts by mass

Cement: Basalite, Type II/V, 1 part by mass

Water: Lake Water, water:cement ratio = 0.50

Test Results:

Trial 1 Trial 2 Trial 3 Average 230 243 226 233

345 342 342 343

Initial Set: Penetration Resistance at 500 psi

Final Set: Penetration Resistance at 4,000 psi

Report Date: December 10, 2014 Reviewed By: JLC

Test specimens were fabricated in accordance with ASTM C1602-12, Mixing Water Used in the Production of Hydraulic Cement Concrete;

Section 5.3.3, Testing Using Laboratory Mortar Batches

Duration, minutes

Initial Set

Final Set

ASTM C403-08, Time of Setting of Concrete Mixtures by Penetration Resistance

Trial 1

0 50 100 150 200 250 300 350 400

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 2

0 50 100 150 200 250 300 350 400

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 3

0 50 100 150 200 250 300 350 400

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p

Date Tested: December 9, 2014

Sample: Well Water

Cement: Basalite, Type II/V, Manufactured 11/18/14

Material Proportions:

Sand: ASTM C33 Concrete Sand, 2.25 parts by mass

Cement: Basalite, Type II/V, 1 part by mass

Water: Well Water, water:cement ratio = 0.50

Test Results:

Trial 1 Trial 2 Trial 3 Average 217 220 217 218

323 327 327 326

Initial Set: Penetration Resistance at 500 psi

Final Set: Penetration Resistance at 4,000 psi

Report Date: December 10, 2014 Reviewed By: JLC

ASTM C403-08, Time of Setting of Concrete Mixtures by Penetration Resistance

Test specimens were fabricated in accordance with ASTM C1602-12, Mixing Water Used in the Production of Hydraulic Cement Concrete;

Section 5.3.3, Testing Using Laboratory Mortar Batches

Duration, minutes

Initial Set

Final Set

Trial 1

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 2

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 3

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p

Date Tested: December 9, 2014

Sample: Distilled Water (Control Sample)

Cement: Basalite, Type II/V, Manufactured 11/18/14

Material Proportions:

Sand: ASTM C33 Concrete Sand, 2.25 parts by mass

Cement: Basalite, Type II/V, 1 part by mass

Water: Distilled Water, water:cement ratio = 0.50

Test Results:

Trial 1 Trial 2 Trial 3 Average 223 225 226 225

322 335 327 328

Initial Set: Penetration Resistance at 500 psi

Final Set: Penetration Resistance at 4,000 psi

Report Date: December 10, 2014 Reviewed By: JLC

Test specimens were fabricated in accordance with ASTM C1602-12, Mixing Water Used in the Production of Hydraulic Cement Concrete;

Section 5.3.3, Testing Using Laboratory Mortar Batches

Duration, minutes

Initial Set

Final Set

ASTM C403-08, Time of Setting of Concrete Mixtures by Penetration Resistance

Trial 1

0 50 100 150 200 250 300 350 400

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 2

0 50 100 150 200 250 300 350 400

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 3

0 50 100 150 200 250 300 350 400

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p

14 April 2015

US Army Corps of Engineers

Sacramento District

Subject: Laboratory Test Results March 2015 Water Sampling mortars made with various different waters have been performed. The waters used in the physical property tests were Lake Water and Well Water, each of which was supplied by the US Army Corps of Engineers (USACE) in plastic 1-gallon containers.

We also used distilled water purchased from a local retail store in the fabrication of control specimens. In addition, samples of the Lake Water and Well Water were submitted to Sunland Analytical Lab for chemical analysis.

The purpose of the tests was to provide data to the USACE to aid in the comparison of the different waters (Lake Water, Well Water, and distilled water) to produce concrete

� Staining Properties of Water, CRD-C 401-75 � pH of Water � Sulfate Content of Water

Page 2 14 April 2015

Specimen Age, days

Individual Specimen

Unconfined Compressive Strength, psi

Average Unconfined

Compressive Strength, psi

Percent of Distilled Water

2,540

2,430 7

2,400

2,460 92

3,520

3,460

Lake

3,460

3,480 92

2,500

2,560 7

2,450

2,500 94

3,430 3,420

Well

3,570

3,470 92

2,710

2,660 7

2,650

2,670 100

3,760 3,860

Distilled

3,720

3,780 100

Cement Used: Basalite, Type II/V, Manufactured February 4, 2015

Page 3 14 April 2015 standard is a specification for water used in making concrete, and it directs setting time

Set

Individual Trial Setting

Time, minutes

Average Setting Time, minutes

Deviation from Control, minutes

230 Initial

231 17

Lake

Final

327 29

224 Initial

224 10

Well

Final

307 9

214 Initial

214 NA

Distilled

Final

298 NA

Page 4 14 April 2015

Lake Water Slight Well Water Very Slight

Well Water Lake Water

Page 5 14 April 2015 ordinarily exercised by other members of Youngdahl Consulting Group Inc.’s profession practicing in the same locality, under similar conditions and at the date the services were provided. Our conclusions, opinions and recommendations are based on a limited number of observations and data. It is possible that conditions could vary between or beyond the data evaluated. Youngdahl Consulting Group, Inc. makes no guarantee or

� Chemical Analysis of Water, by Sunland Analytical Lab, Dated 03/25/15, 2 Pages

Date Tested: March 18, 2015

Sample: Distilled Water (Control Sample)

Cement: Basalite, Type II/V, Manufactured 2/4/15

Material Proportions:

Sand: ASTM C33 Concrete Sand, 2.25 parts by mass

Cement: Basalite, Type II/V, 1 part by mass

Water: Distilled Water, water:cement ratio = 0.50

Test Results:

Trial 1 Trial 2 Trial 3 Average 214 214 214 214

298 296 300 298

Initial Set: Penetration Resistance at 500 psi

Final Set: Penetration Resistance at 4,000 psi

Report Date: April 13, 2015 Reviewed By: JLC

ASTM C403-08, Time of Setting of Concrete Mixtures by Penetration Resistance

Test specimens were fabricated in accordance with ASTM C1602-12, Mixing Water Used in the Production of Hydraulic Cement Concrete;

Section 5.3.3, Testing Using Laboratory Mortar Batches

Duration, minutes

Initial Set

Final Set

Trial 1

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 2

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 3

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p

Date Tested: March 18, 2015

Sample: Lake Water

Cement: Basalite, Type II/V, Manufactured 2/4/15

Material Proportions:

Sand: ASTM C33 Concrete Sand, 2.25 parts by mass

Cement: Basalite, Type II/V, 1 part by mass

Water: Lake Water, water:cement ratio = 0.50

Test Results:

Trial 1 Trial 2 Trial 3 Average 230 230 234 231

326 325 330 327

Initial Set: Penetration Resistance at 500 psi

Final Set: Penetration Resistance at 4,000 psi

Report Date: April 13, 2015 Reviewed By: JLC

ASTM C403-08, Time of Setting of Concrete Mixtures by Penetration Resistance

Test specimens were fabricated in accordance with ASTM C1602-12, Mixing Water Used in the Production of Hydraulic Cement Concrete;

Section 5.3.3, Testing Using Laboratory Mortar Batches

Duration, minutes

Initial Set

Final Set

Trial 1

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 2

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 3

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p

Date Tested: March 18, 2015

Sample: Well Water

Cement: Basalite, Type II/V, Manufactured 2/4/15

Material Proportions:

Sand: ASTM C33 Concrete Sand, 2.25 parts by mass

Cement: Basalite, Type II/V, 1 part by mass

Water: Well Water, water:cement ratio = 0.50

Test Results:

Trial 1 Trial 2 Trial 3 Average 224 224 225 224

303 312 307 307

Initial Set: Penetration Resistance at 500 psi

Final Set: Penetration Resistance at 4,000 psi

Report Date: April 13, 2015 Reviewed By: JLC

Test specimens were fabricated in accordance with ASTM C1602-12, Mixing Water Used in the Production of Hydraulic Cement Concrete;

Section 5.3.3, Testing Using Laboratory Mortar Batches

Duration, minutes

Initial Set

Final Set

ASTM C403-08, Time of Setting of Concrete Mixtures by Penetration Resistance

Trial 1

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 2

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p s i

Trial 3

0 50 100 150 200 250 300 350

Elapsed Time, min.

P e n e tr a ti o n

R e s is ta n c e p

FY12_August 2012 Sample