GDR App G.pdf

Success Dam Spillway Enlargement Project Geotechnical Data Report

APPENDIX G – TELEVIEWER REPORTS

pete.nix Rectangle Success Dam Spillway Enlargement Project

U.S. Army Corps of Engineers Huntington District

Tule River Success Dam Geophysical Imaging

Contract No. W91237-16-D-0010 Task Order No. W9123719F0150 Porterville, California

Prepared for:

USACE, Huntington District Huntington, West Virginia

Prepared by:

Stantec Consulting Services Inc.

Lexington, Kentucky

May 31, 2019

3052 Beaumont Centre Circle, Lexington KY 40513-1703

Design with community in mind

May 31, 2019 File: rpt_001_175568358_Rev2

Attention: Mr. Stephen Spoor USACE Huntington District 502 Eighth Street Huntington, West Virginia 25701-2070

Reference: Report of Geophysical Imaging Tule River Success Dam Contract No. W91237-16-D-0010 Task Order No. W9123719F0150

Dear Mr. Spoor, Stantec Consulting Services Inc. (Stantec) is pleased to provide this revised report for geophysical imaging at the above referenced project site and includes updates to the report tables indicating true north in the azimuth columns. This report includes the Quality Assurance (QA) review comments provided by the USACE, Sacramento District received on May 10 and 30, 2019.

We appreciate the opportunity to assist the District in this important mission. If you have any comments or questions, don’t hesitate to contact us.

Regards, STANTEC CONSULTING SERVICES INC.

Barry Bryant, PE Task Order Manager Phone: (859) 422-3068 Fax: (859) 422-3100 Barry.Bryant@stantec.com

TULE RIVER SUCCESS DAM GEOPHYSICAL IMAGING

LIST OF APPENDICES

SCOPE OF WORK

GEOVISION’S GEOPHYSICAL IMAGING REPORT

QUALITY ASSURANCE COMMENTS AND RESPONSES

APPENDIX A

USACE, CONTRACTING BRANCH

JOSH WESTGATE, 502 8TH STREET

HUNTINGTON WV 25701

W81F8E90361825

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The above referenced Task Order for Tule River Success Dam Geophysical Imaging, Porterville, CA, is hereby referenced as follow s:

Due to the changing needs of the Government, the contractor completion date is extended from 24 March 2019 to 30 April 2019 and the completion date of the Task Order from 16 April 2019 to 31 May 2019 in accordance w ith attached Statement of Work.

This is a no cost time extension for both the Contractor and the Government. All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 10

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 21-Mar-2019

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code)

9B. DATED (SEE ITEM 11)

X W9123719F0150

10B. DATED (SEE ITEM 13)

X

9A. AMENDMENT OF SOLICITATION NO.

15-Feb-2019

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

X D. OTHER (Specify type of modification and authority) FAR 52.243-1, Alt III, Changes

E. IMPORTANT: Contractor is not, X is required to sign this document and return 1 copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

P00001

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

21-Mar-2019

CODE

USACE, CONTRACTING DIVISION

KAREN SIMMONS, 502 8TH STREET

HUNTINGTON WV 25701

W91237 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE W91237

STANTEC CONSULTING SERVICES INC.

BARRY BRYANT

3052 BEAUMONT CENTER CIR

LEXINGTON KY 40513-1703

0CGN8FACILITY CODE0CGN8CODE

EMAIL:304-399-5963TEL:

GINNY M MORGAN / CONTRACT SPECIALIST

Modification Control Number: h1orxkls19263

22-Mar-2019

W91237-16-D-0010 W9123719F0150P00001

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION C - DESCRIPTIONS AND SPECIFICATIONS

The following have been added by full text:

REVISED STATEMENT OF WROK

STATEMENT OF WORK

MODIFICATION P00001

TULE RIVER SUCCESS DAM GEOPHYSICAL IMAGING

CONTRACT W91237-16-D-0010

TASK ORDER W9123719F0150

14 March 2019

Prior to submission of the proposal for the performance of this scope of services, the Contractor will review the scope and provide comments on any errors, omissions, inconsistencies, new industry standards or procedures which would provide the customer with a better end product. Please contact the Contracting Officer immediately if you have any suggestions or questions. The USACE highly recommends that a site visit occur prior to proposal of this effort.

Synopsis of work

This scope of work is to perform down hole acoustic and video imaging of nine (9) borings for the Tule River Success Dam Spillway Raise Project. The location of the project is near Porterville, CA. Access to the locations may require four-wheel drive vehicles and in some cases may require the equipment be hand carried to a boring location if the vehicle provided does not permit access.

Specifications

1. The Architect-Engineer (Contractor) shall pre-schedule its work with the USACE TPOC to coordinate their presence during explorations. The expected period of performance for access to the open borings is between award date and March 10, 2019. A Level 1 inspector is found sufficient by the Government for this effort.

2. The Contractor shall anticipate it will require two mobilizations for this effort.

3. The Contractor shall perform the down hole imaging in accordance with the following specification, which is that found in Section 3.31 of the prime contract:

“The contractor, upon completion of the boring in which geophysical logging is specified shall allow the boring to set undisturbed for a minimum of 24 hours prior to beginning the logging to allow settling of the suspended material in the water column. Following this settling period, the Contractor shall use optical televiewer, acoustic televiewer, or both according to the bid item chosen to log the boring to survey the boring in accordance with standard industry procedure.

C.3.31.3 EQUIPMENT

C.3.31.3.1 OPTICAL TELEVIEWER The Optical Televiewer shall present an undistorted 360° view of the boring wall. The image shall be aligned with true north. The resulting images produced by the camera shall be stacked to construct a complete, undistorted, oriented image of the boring and be capable of high enough resolution to show fine details enabling processing to provide accurate strike and dip of structural features.

C.3.31.3.2 ACOUSTIC TELEVIEWER The Acoustic Televiewer shall transmit ultrasonic pulses providing a 360° image of the boring walls, be able to identify and determine the orientation of planar features such as bedding planes and fractures, and be able to indicate the relative hardness of the formation materials.

C.3.31.4 INTERPRETATION The contractor shall process and interpret the results of the imaging. The image(s) shall be shown as an unwrapped 360° image(s) on the final report. The Contractor shall create a plane projection track presenting the fracture and bedding plane signatures from the image logs. The contractor shall present a dip and dip direction log as a tadpole plot in which the vertical axis is depth and the horizontal axis is dip from 0° to 90°, with the tail of the tadpole indicating dip direction measured in a clockwise direction from north.

C.3.31.4.1 ANALYSIS The Contractor shall perform structural analysis on the orientation data using stereographic analysis and a partial differential equation such as the Fisher-Kolmogorov, or similar. This data shall be presented on a stereographic polar projection and rose diagrams as well as data sets as described below in the report section.

C.3.31.4.2 STEREONET The stereographic polar projection diagram shall plot dip and dip direction of planar features with 0° degree dip in the center of the diagram and 90° dip at the circumference. The dip direction shall be indicated by compass azimuth measured clockwise from north (0°).

C.3.31.4.3 ROSE DIAGRAM Rose diagrams shall be used to graphically illustrate the strike distribution of the sets of planes. Radiating rays shall be drawn with lengths proportional to the number of strike measurements within 10° sectors.

C.3.31.4.4 REPORT The Contractor provide preliminary data from the borings are it becomes available with the understanding that this is not final data. The Contractor shall produce a report containing the video and/or the acoustic images in a 90% draft version. This 90% draft shall be provided in electronic format for review by the Government’s technical staff as soon as possible following completion of the borehole logging. The Government will review and reply within two business weeks, excluding holidays. Once comments are resolved, the Contractor shall submit two hard copies of the report and one digital copy including all native files and a single pdf of the report.

C.3.31.4.5 REPORT CONTENTS The report shall, at a minimum, provide the following details:

a. Summary table of all test borings logged with information including:

boring location, boring elevation, inclination, orientation of inclination, logged depths, date drilled, date logged,

b. Stereographic projections, for each type of feature observed, bedding, fractures, etc. If more than one set is discernible for any feature, then separate projections shall be made for each discernible set for that feature,

c. Rose diagrams, corresponding to the feature for which each stereographic projection was made,

d. Depth shown in feet and elevation (if inclined elevation must be corrected to batter),

e. Tadpole graphs,

f. Tables indicating mean orientation of bedding and each discernible set of fracture planes,

g. Tables of planes with measurable aperture,

h. Unwrapped views of the dip with factures and bedding shown by tadpoles color-coded to open fractures, filled fractures, and bedding.

i. Data shall be presented in such a way that it is readily correlatable and easy to read.

j. Discussion summarizing results

k. Weather conditions during each logging session.”

4. Native files shall not be locked.

5. Sections f. and g. of the report shall also be provided in Excel format.

6. The Technical Point of Contact will coordinate with the Contractor for site access.

7. Nine borings are scheduled for imaging:

1F-19-04 = 161.4 feet

1F-19-05 = 181.4 feet 1F-19-06 = 122.4 feet 1F-19-08 = 50 feet 1F-19-09 = 52 feet 1F-19-10 = 50 feet 1F-19-12 = 51 feet 1F-19-15 = 50 feet 1F-19-22 = 50 feet

8. Real estate certification and environmental clearance has occurred with no restrictions given.

Safety Plan The Contractor may develop its abbreviated Site Specific Safety and Health Plan utilizing the abbreviated guidance in the most current EM 385-1-1.

Quality Control Plan The Contractor shall develop a Quality Control Plan for the imaging and reporting and submit it for the acceptance of the Government.

Minimum Quality Control Plan (QCP) Contents

1. Purpose - Describe the purpose of the quality control plan.

2. Project - Describe the project name, general scope.

3. Customer - Name the customer organization.

4. Products - Identify the implementation documents to be produced.

5. Project Delivery Team - List PDT members with name, discipline, organization, and contact information. Identify whether work is performed in-house or by another contractor, or combination thereof.

6. Technical Risks - Describe the technical risks to be managed during testing and reporting.

7. Coordination - Describe planned coordination activities to ensure timely and complete sharing of project information.

8. Quality Checks and Reviews - Identify and list the types of internal quality checks and reviews to be performed: PDT, plan-in-hand, quality checks, etc. For each type review, describe the procedures (including certification) and list the reviewers. For each reviewer provide name and discipline.

9. Quality Assurance - Describe the quality assurance procedures to be implemented by the Contractor to check work completed by a sub-contractor.

Identify the QA reviewers by name and discipline. Summarize the scopes of work to be completed by the subcontractor. Describe procedures for the PDT to review.

10. Additional Procedures - Describe any additional quality procedures that are unique or special to the project.

Security

All Contractors and subcontractor employee(s) working on this contract who require access in and/or around any Sacramento District facilities shall receive authorization to be on site at these facilities based upon a favorable background investigation in accordance with “Homeland Security Presidential Directive 12: Policy for a Common Identification Standard for Federal Employees and Contractors” (HSPD 12). The Sacramento District Security Management Office shall submit contractor(s) personal information in order to complete the basic background investigation in order to make a recommendation to the Contracting Office of an employee’s suitability for work on Government property. The Procuring Contracting Officer (PCO) has the right to deny any contractor or subcontractor employee from working on the contract based upon the results provided by the Sacramento District Security Management Office of the background investigation. The Government, Contractor, and subcontractors shall not permit any employee(s) access to drawings, blueprints, records, photos, sites, or projects until the Sacramento District Security Management Office has completed an Operations Security (OPSEC) review of such items and determined they can be released.

Contractors shall submit a complete investigation packet for each contractor and subcontractor employee to the Sacramento District Security Management office within 10 working days after award of any contract, or prior to the individual being permitted unescorted access in or on District facilities. The Contractor must also provide the following: (1) Name of the Contract Specialist with whom he/she is working, (2) Project Name, (3) Contract Number and (4) Task Order Number when applicable.

The documents listed below are required:

SF 85, Questionnaire for Non-Sensitive Positions (see http://www.opm.gov/forms/ to print form). FD 258, Contractor Fingerprint Card (one card for digital prints, two for ink prints) (NOTE: a trained/qualified individual must take prints, ORI block on the FD 258 must be USOPM000Z) (Contractor Fingerprint Cards (FD-258) may be obtained by Contracting Division by contacting the Sacramento District Security Management office).

Contractor shall report any changes in personnel or at any time conditions change at least 5 working days prior to individual(s) need to have access to the site. The Contractor shall provide the same information as listed above for all new employees.

Following submission of paperwork, the Security Management Office will conduct an initial criminal check based upon the information provided. If there are no issues, Security Management Office will make recommendations to the PCO or their Designated Representative. The Security Management Office cannot give approval due to unfavorable report(s). The Security Management Office shall coordinate with Office of Counsel and will jointly make recommendations to the PCO and/or the Designated Representative should a background investigation come back with derogatory information. The PCO will make the determination whether to allow the Contractor personnel to work on the site based on Security and Office of Counsel recommendations, and the PCO will advise Contractor of the decision.

Foreign Nationals

The Contractor shall provide the package listed above, as well as additional materials noted below for all Foreign Nationals. The Contractor is to expect additional time in the approval process for all Foreign Nationals due to the level of review and elevation of the review to Headquarters Staff to accomplish. All Foreign Nationals must comply with the following paragraph:

In accordance with Engineering Regulation 380-1-18, “Technology Transfer, Disclosure of Information and Contacts with Foreign Representatives” dated 1 August 1996, Section 4, all foreign nationals who work on Corps of Engineers’ contracts shall be approved by the Headquarters US Army Corps of Engineers (HQ USACE) Foreign Disclosure Officer before beginning work on this contract; this regulation includes subcontractor employees. The Contractor shall submit to the Security Management Office, the names of all foreign nationals proposed for performance under this contract, along with documentation to verify legal admittance into the United States. Such documentation shall include at least one of the following a U.S. passport, Certificate of U.S. Citizenship (INS Form N-560 or N-561), Certificate of Naturalization (INS Form N- 550 or N-570), Alien Registration Card with photograph (INS Form I-151 or I-551), Employment Authorization Card (INS Form I-688A), etc.

In order to assure forms are properly completed, and to minimize time delays, Contractor is encouraged to work closely with the Security Management Office. The Government will return for correction incomplete forms, illegible forms, etc. which will delay the contractor / subcontractor from beginning work.

Security requirements are subject to change in accordance with HSPD-12, Office of Personnel Management, regulation or policy changes, etc. The Government shall add any changes to security requirements by modification to the contract.

The Contractor shall contact the Security Management Office by phone, letter, or email at the following numbers/addresses:

CELRH-SM

502 Eighth Street Huntington, WV 25701

Stephen R. Curry, phone (304) 399-5695; email stephen.r.curry@usace.army.mil

Matthew D. Green, phone (304) 399-5294; email matthew.d.green@usace.army.mil

Sandra L. Hardwick, phone (304) 399-5612; email sandra.l.hardwick@usace.army.mil

AT Level I Training All contractor employees, to include subcontractor employees, requiring access to Army installations, facilities, controlled access areas, or require network access, shall complete AT Level I awareness training within 30 calendar days after contract start date or effective date of incorporation of this requirement into the contract, whichever is applicable. Upon request, the contractor shall submit certificates of completion for each affected contractor employee and subcontractor employee, to the COR or to the contracting officer (if a COR is not assigned), within 5-calendar days after completion of training by all employees and subcontractor personnel. AT Level I awareness training is available at the following website: http://jko.jten.mil/courses/atl1/launch.html; or it can be provided by the RA ATO in presentation form which will be documented via memorandum.

Access and General Protection/Security Policy and Procedures All contractor and all associated sub-contractors employees shall comply with applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative). The contractor shall also provide all information required for background checks to meet installation/facility access requirements to be accomplished by installation Provost Marshal Office, Director of Emergency Services or Security Office. Contractor workforce must comply with all personal identity verification requirements (FAR clause 52.204-9, Personal Identity Verification of Contractor Personnel) as directed by DOD, HQDA and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force Protection Condition (FPCON) at any installation or facility change, the Government may require changes in contractor security matters or processes.

Contractor and all associated sub-contractors employees shall comply with adjudication standards and procedures using the National Crime Information Center Interstate Identification Index (NCIC-III) and Terrorist Screening Database (TSDB) (Army Directive 2014-05 / AR 190-13), applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative, as NCIC and TSDB are available), or, at OCONUS locations, in accordance with status of forces agreements and other theater regulations.

Suspicious Activity Reporting Training (iWatch, CorpsWatch, or See Something, Say Something.)

The contractor and all associated sub-contractors shall receive a brief/training (provided by the RA) on the local suspicious activity-reporting program. This locally developed training will be used to inform employees of the types of behavior to watch for and instruct employees to report suspicious activity to the project manager, security representative or law enforcement entity. This training shall be completed within 30 calendar days of contract award and within 30 calendar days of new employees commencing performance with the results reported to the COR NLT 5 calendar days after the completion of the training.

OPSEC Training All new contractor employees will complete Level I OPSEC Training within 30 calendar days of their reporting for duty. Additionally, all contractor employees must complete annual OPSEC awareness training. The contractor shall submit certificates of completion for each affected contractor and subcontractor employee, to the COR or to the contracting officer (if a COR is not assigned), within 5 calendar days after completion of training. OPSEC awareness training is available at the following websites:

https://www.iad.gov/ioss/ or http://www.cdse.edu/catalog/operations-security.html; or it can be provided by the RA OPSEC Officer in presentation form, which will be documented via memorandum.

E-Verify Program The Contractor must pre-screen Candidates using the E-verify Program (http://www.uscis.gov/e-verify) website to meet the established employment eligibility requirements. The Vendor must ensure that the Candidate has two valid forms of Government issued identification prior to enrollment to ensure the correct information is entered into the E-verify system. An initial list of verified/eligible Candidates must be provided to the COR no later than 3 business days after the initial contract award.

Project Schedule and Completion Date

Contractor shall make all efforts to plan its work to complete on the ground geophysical efforts by 10 March 2019. If this date cannot be met, The Contractor shall complete the work as soon as possible after that date but no later than 24 March 2019 April 30, 2019 subject to completion of the drilling by the Government. The report shall be due two weeks after the completion of the field logging. If the Contractor determines at any time it cannot meet this schedule it shall immediately notify the Government. Completion date for this order is April 16, 2019 31 May 2019.

Meetings and Other Communications

Contractor shall immediately notify the Government of any issues discovered during the logging as well as any safety issues that occur, even near misses.

At a minimum, the Contractor shall update the Government at the end of each boring by e-mail of progress.

Government Points of Contact

Technical Point of Contact:

Coralie Wilhite, P.G.

Dam Safety Production Center 1325 J Street Sacramento, CA 95628 Phone: 916-557-7864 E-mail: Coralie.P.Wilhite@usace.army.mil

Technical Contract Management Specialist:

Stephen B. Spoor Dam Safety Modification Mandatory Center of Expertise 502 Eighth Street Huntington, WV 25701 Phone: 304-399-5024 Cell: 304-544-3033 E-mail: Stephen.B.Spoor@usace.army.mil

SECTION F - DELIVERIES OR PERFORMANCE

The following Delivery Schedule item for CLIN 0003 has been changed from:

DELIVERY DATE QUANTITY SHIP TO ADDRESS DODAAC /

CAGE

16-APR-2019 57,297.67 DAM SAFETY PRODUCTION CENTER

STEPHEN SPOOR

502 8TH STREET

HUNTINGTON WV 25701-2070

FOB: Destination

963475

To:

DELIVERY DATE QUANTITY SHIP TO ADDRESS DODAAC /

CAGE

31-MAY-2019 57,297.67 DAM SAFETY PRODUCTION CENTER

STEPHEN SPOOR

502 8TH STREET

HUNTINGTON WV 25701-2070

FOB: Destination

963475

(End of Summary of Changes)

1F-19-15 was moved

APPENDIX B

GEOVISION’S GEOPHYSICAL

IMAGING REPORT

TULE RIVER

SUCCESS DAM

TELEVIEWER SURVEYS

Prepared for

Stantec Consulting Services, Inc.

3052 Beaumont Center Circle

Lexington, KY 40513

(859) 422-3068

Prepared by

GEOVision Geophysical Services

1124 Olympic Drive Corona, California 92881

(951) 549-1234 Project 19077

May 30, 2019 Report 19077-01 rev 3

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 1 of 255 May 30, 2019

TABLE OF CONTENTS

TABLE OF CONTENTS

TABLE OF FIGURES

TABLE OF TABLES

APPENDICES

INTRODUCTION

SCOPE OF WORK

INSTRUMENTATION

ACOUSTIC TELEVIEWER / BORING DEVIATION INSTRUMENTATION

OPTICAL TELEVIEWER / BORING DEVIATION INSTRUMENTATION

MEASUREMENT PROCEDURES

ACOUSTIC TELEVIEWER MEASUREMENT PROCEDURES

OPTICAL TELEVIEWER MEASUREMENT PROCEDURES

DATA ANALYSIS

ACOUSTIC TELEVIEWER ANALYSIS

OPTICAL TELEVIEWER ANALYSIS

RESULTS

ACOUSTIC TELEVIEWER / OPTICAL TELEVIEWER / BORING DEVIATION

SUMMARY

DISCUSSION OF TELEVIEWER / BORING DEVIATION RESULTS

QUALITY ASSURANCE

TELEVIEWER DATA RELIABILITY

CERTIFICATION

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 2 of 255 May 30, 2019

Table of Figures

Figure 1: Concept illustration of acoustic televiewer probe

Figure 2. Boring 1F-19-04, Acoustic Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 3. Boring 1F-19-04, Acoustic Rose Diagram

Figure 4. Boring 1F-19-04, Acoustic Deviation Projection

Figure 5. Boring 1F-19-04, Optical Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 6. Boring 1F-19-04, Optical Rose Diagram

Figure 7. Boring 1F-19-05, Acoustic Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 8. Boring 1F-19-05, Acoustic Rose Diagram

Figure 9. Boring 1F-19-05, Acoustic Deviation Projection

Figure 10. Boring 1F-19-05, Optical Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 11. Boring 1F-19-05, Optical Rose Diagram

Figure 12. Boring 1F-19-06, Acoustic Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 13. Boring 1F-19-06, Acoustic Rose Diagram

Figure 14. Boring 1F-19-06, Acoustic Deviation Projection

Figure 15. Boring 1F-19-06, Optical Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 16. Boring 1F-19-06, Optical Rose Diagram

Figure 17. Boring 1F-19-08, Acoustic Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 18. Boring 1F-19-08, Acoustic Rose Diagram

Figure 19. Boring 1F-19-08, Acoustic Deviation Projection

Figure 20. Boring 1F-19-08, Optical Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 21. Boring 1F-19-08, Optical Rose Diagram

Figure 22. Boring 1F-19-09, Acoustic Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 23. Boring 1F-19-09, Acoustic Rose Diagram

Figure 24. Boring 1F-19-09, Acoustic Deviation Projection

Figure 25. Boring 1F-19-09, Optical Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 26. Boring 1F-19-09, Optical Rose Diagram

Figure 27. Boring 1F-19-10, Acoustic Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 28. Boring 1F-19-10, Acoustic Rose Diagram

Figure 29. Boring 1F-19-10, Acoustic Deviation Projection

Figure 30. Boring 1F-19-10, Optical Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 31. Boring 1F-19-10, Optical Rose Diagram

Figure 32. Boring 1F-19-12, Acoustic Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 33. Boring 1F-19-12, Acoustic Rose Diagram

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 3 of 255 May 30, 2019

Figure 34. Boring 1F-19-12, Acoustic Deviation Projection

Figure 35. Boring 1F-19-12, Optical Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 36. Boring 1F-19-12, Optical Rose Diagram

Figure 37. Boring 1F-19-15, Acoustic Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 38. Boring 1F-19-15, Acoustic Rose Diagram

Figure 39. Boring 1F-19-15, Acoustic Deviation Projection

Figure 40. Boring 1F-19-15, Optical Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 41. Boring 1F-19-15, Optical Rose Diagram

Figure 42. Boring 1F-19-22, Acoustic Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 43. Boring 1F-19-22, Acoustic Rose Diagram

Figure 44. Boring 1F-19-22, Acoustic Deviation Projection

Figure 45. Boring 1F-19-22, Optical Stereonet Diagram: Equal Angle, Lower Hemisphere

Figure 46. Boring 1F-19-22, Optical Rose Diagram

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 4 of 255 May 30, 2019

Table of Tables

Table 1. Boring locations and logging dates

Table 2. Logging dates and depth ranges

Table 3. Televiewer Deviation Data Summary

Table 4. Boring 1F-19-04, Acoustic Televiewer Feature depth, dip azimuth, dip, aperture, and description

Table 5. Boring 1F-19-04, Optical Televiewer Feature depth, dip azimuth, dip and description... 24

Table 6. Boring 1F-19-05, Acoustic Televiewer Feature depth, dip azimuth, dip, aperture, and description

Table 7. Boring 1F-19-05, Optical Televiewer Feature depth, dip azimuth, dip and description... 37

Table 8. Boring 1F-19-06, Acoustic Televiewer Feature depth, dip azimuth, dip, aperture, and description

Table 9. Boring 1F-19-06, Optical Televiewer Feature depth, dip azimuth, dip and description... 51

Table 10. Boring 1F-19-08, Acoustic Televiewer Feature depth, dip azimuth, dip, aperture, and description

Table 11. Boring 1F-19-08, Optical Televiewer Feature depth, dip azimuth, dip and description. 60

Table 12. Boring 1F-19-09, Acoustic Televiewer Feature depth, dip azimuth, dip, aperture, and description

Table 13. Boring 1F-19-09, Optical Televiewer Feature depth, dip azimuth, dip and description. 68

Table 14. Boring 1F-19-10, Acoustic Televiewer Feature depth, dip azimuth, dip, aperture, and description

Table 15. Boring 1F-19-10, Optical Televiewer Feature depth, dip azimuth, dip and description. 76

Table 16. Boring 1F-19-12, Acoustic Televiewer Feature depth, dip azimuth, dip, aperture, and description

Table 17. Boring 1F-19-12, Optical Televiewer Feature depth, dip azimuth, dip and description. 84

Table 18. Boring 1F-19-15, Acoustic Televiewer Feature depth, dip azimuth, dip, aperture, and description

Table 19. Boring 1F-19-15, Optical Televiewer Feature depth, dip azimuth, dip and description. 94

Table 20. Boring 1F-19-22, Acoustic Televiewer Feature depth, dip azimuth, dip, aperture, and description

Table 21. Boring 1F-19-22, Optical Televiewer Feature depth, dip azimuth, dip and description

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 5 of 255 May 30, 2019

APPENDICES

APPENDIX A PROCESSED TELEVIEWER IMAGES WITH TADPOLES

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 6 of 255 May 30, 2019

INTRODUCTION

GEOVision acquired borehole geophysical data in nine boreholes for the US Army Corps of

Engineers Tule River Success Dam project, in Porterville, California. This work was performed for

Stantec Consultants. Field work was performed by Jonathan Jordan. Data analysis and report preparation were performed by Emily Feldman and reviewed by a GEOVision licensed California professional geophysicist or engineer.

This report presents the results of borehole geophysical data collected between March 11 and April

4, 2019. Acoustic televiewer and optical televiewer data were collected in nine uncased boreholes, as detailed in Table 1. The purpose of these measurements was to supplement stratigraphic information obtained during the drilling investigation.

A Robertson Geologging, Inc. (RG) High Resolution Acoustic Televiewer (ATV) and RG High

Resolution Optical Televiewer (OTV) were used to collect borehole deviation data and acoustic and optical images of the borehole wall. Borehole images were analyzed and features, such as bedding planes and fractures, were identified and used to calculate feature dips and azimuths.

Acquired data were analyzed and a profile of borehole deviation versus depth was produced.

Measurement procedures followed these ASTM standards:

ASTM D5753-18, “Planning and Conducting Boring Geophysical Logging”

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 7 of 255 May 30, 2019

INSTRUMENTATION

Acoustic Televiewer / Boring Deviation Instrumentation

Acoustic televiewer data were collected using a RG ATV slimhole probe controlled by RG's

HiRAT program.

The probe receives control signals from, and sends the digitized measurement values to, a RG

Micrologger II (MLII) on the surface via an armored cable. The cable is wound onto the drum of a winch and is used to support the probe. Cable travel is measured to provide probe depth using a sheave of known circumference fitted with a digital rotary encoder. The probe and depth data are transmitted by USB link from the MLII unit to a laptop computer where it is displayed and stored.

This system produces images of the boring wall based on the amplitude and travel time of an ultrasonic beam reflected from the formation wall. The ultrasonic energy is generated by a piezoelectric transducer at a frequency of 1.4 MHz. A periodic acoustic energy wave is emitted by the transducer and travels through the acoustic head and boring fluid until it reaches the interface between the boring fluid and the boring wall. Here a portion of the energy is reflected back to the transducer, the remainder continuing into the formation. By careful time sequencing, the piezoelectric transducer acts as both the transmitter of the ultrasonic pulse and receiver of the reflected wave. The travel time of the energy wave is the period between transmission of the source energy pulse and the return of the reflected wave measured at the point of maximum wave amplitude. The magnitude of the energy wave is measured in dB, a unitless ratio of the detected echo wave amplitude divided by the amplitude of the transmitted wave. The strength of the reflected signal depends primarily on the impedance contrast of the boring fluid and the boring wall formation.

The acoustic wave propagates along the axis of the probe and then is reflected perpendicular to this axis by a reflector that focuses the beam to a 0.08 inch diameter spot about 2 inches from the central axis of the probe. This reflector is mounted on the shaft of a stepper motor enabling the position of the measurement to be rotated through 360. Sampling rates of 90, 180 and 360

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 8 of 255 May 30, 2019 measured points per revolution are available. Typically data are collected at 360 samples per revolution. It should be noted that during logging the probe is moving in the boring, so that the measured points describe a very fine pitch spiral.

The probe contains a fluxgate magnetometer to monitor magnetic north, and all raw televiewer data are referenced to magnetic north. Processed data are referenced to true north, using site and logging date-specific declination (12.5 degrees east) obtained from NOAA

(http://www.ngdc.noaa.gov/geomag-web/#declination). Also, a three-axis accelerometer is enclosed in the probe to record boring deviation data while logging; this permits correction of structure dip angle from apparent dip, referenced to boring axis, to true dip (referenced to a vertical axis) in non-vertical borings. The probe is centered in the borehole by two sets of flat spring centralizers.

Optical Televiewer / Boring Deviation Instrumentation

Optical televiewer data were collected using an RG OTV slimhole probe controlled by RG's OPTV program.

The probe receives control signals from, and sends the digitized measurement values to, a MLII unit on the surface via an armored multi-conductor cable. The cable is wound onto the drum of a winch and is used to support the probe. Cable travel is measured to provide depth using a sheave of known circumference fitted with a digital rotary encoder. The probe and depth data are transmitted by USB link from the MLII unit to a laptop computer where it is displayed and stored.

The high resolution optical televiewer system uses a unique optical system based on a fisheye lens allowing the probe to survey 360 degrees simultaneously. The probe provides a continuous very high resolution image of the borehole wall using a conventional light source. The image is referenced to magnetic north, allowing the cylinder to be “unwrapped” with north as the edge of the unwrapped image. Circular resolutions of 360 to 1440 pixels are available. In order to generate the highest resolution image, a circular resolution of 1440 pixels is used by default.

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 9 of 255 May 30, 2019

The probe contains a fluxgate magnetometer to monitor magnetic north, and all raw televiewer data are referenced to magnetic north. Processed data were referenced to true north, using site and logging date-specific declination (12.5 degrees east) obtained from NOAA

(http://www.ngdc.noaa.gov/geomag-web/#declination). Also, a three axis accelerometer is enclosed in the probe to record boring deviation data while logging, this permits correction of structure dip angle from apparent dip, referenced to boring axis, to true dip (referenced to a vertical axis) in non-vertical borings. The probe is centered in the boring by two sets of flat spring centralizers.

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 10 of 255 May 30, 2019

MEASUREMENT PROCEDURES

Acoustic Televiewer Measurement Procedures

Boreholes were logged on ascent from total depth to bottom of casing or fluid level, as the ATV probe requires a fluid filled boring for proper operation. Measurements followed GEOVision

Procedure for Using the Robertson Geologging Hi-Resolution Acoustic Televiewer (HiRAT), revision 2.0.

Prior to logging, the ATV probe was positioned with the top of the probe even with a stationary reference point and the electronic depth counter was set to the specified length of the probe, minus the height of the reference point. Once verified with a tape measure, these calculations were recorded on a field log. The probe was lowered to the bottom of the borehole while collecting a low vertical resolution image. At the bottom of the borehole, this image was closed, and a high vertical resolution image was acquired on ascent. The probe was raised at a rate of approximately 3 feet per minute to the surface, or bottom of casing, with an acquisition rate of 250 samples/foot, giving an equivalent vertical pixel size of 0.004 feet (0.048 inches). The rotational scan resolution was set to 360 samples per revolution, giving a horizontal pixel size of 0.035 inches.

Upon completion of the measurements, the probe zero depth indication at the depth reference point was verified prior to removal from the borehole.

Optical Televiewer Measurement Procedures

In accordance with the manufacturer’s recommended procedures, the probe was inspected and tested prior to use. Borings were logged with the optical televiewer below protective surface casing to total depth of boring, as possible. Borehole images were acquired on descent and ascent; only using the higher quality image run for processing. The OPTV probe does not require a fluid filled boring for proper operation.

Prior to logging, the OPTV probe was positioned with the top of the probe even with a stationary reference point, and the electronic depth counter was set to the specified length of the probe minus

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 11 of 255 May 30, 2019 the height of the reference point. Once verified with a tape measure, these calculations were recorded on a field log.

Typically, image resolution is set to the maximum; 1,440 pixels for horizontal resolution. Logging rate in a clean, smooth walled borehole can be 6 - 8 feet per minute to maintain very high image quality.

Upon completion of the measurements, the probe zero depth indication at the depth reference point is verified prior to removal from the boring.

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 12 of 255 May 30, 2019

DATA ANALYSIS

Acoustic Televiewer Analysis

Acoustic televiewer feature classification followed GEOVision Televiewer Feature Notes and

Picking Criteria (Appendix A). Acoustic televiewer data were processed using WellCAD software for borehole image analysis, version 5.2. Sinusoidal projections of planar features on the boring walls were interactively picked on the un-wrapped televiewer image and presented on the logs as colored sinusoids superimposed over the televiewer image. Sinusoidal projections were processed using the determined boring gauge of 4 inches to calculate apparent dip angle. True dip was calculated, correcting for the plunge of the borings using recorded data from the accelerometers located in the probe, and presented in arrow format, with true dip indicated by the arrow position across the plot. The azimuth of dip (not strike), is indicated by the direction of the arrow tail, with true north being “up.”

Televiewer data were also processed to extract the deviation data and produce an Excel file and plots of boring deviation.

Optical Televiewer Analysis

Optical televiewer feature classification followed GEOVision Televiewer Feature Notes and

Picking Criteria (Appendix A). The optical televiewer data were processed using WellCAD software for borehole image analysis, version 5.2. Sinusoidal projections of planar features on the boring walls were interactively picked on the un-wrapped televiewer image and presented on the logs as colored sinusoids superimposed over the televiewer image. Sinusoidal projections were processed using the standard boring gauge of 4 inches to calculate apparent dip angle. True dip was calculated, correcting for the plunge of the borings using the recorded data from the accelerometers located in the probe, and presented in arrow format, with true dip indicated by the arrow position across the plot. The azimuth of dip (not strike), is indicated by the direction of the arrow tail, with true north being “up.”

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 13 of 255 May 30, 2019

RESULTS

Acoustic Televiewer / Optical Televiewer / Boring Deviation

Acoustic televiewer, optical televiewer, and boring deviation data were collected and processed for nine borings. Borehole results are presented in numerical order in this report, as follows: acoustic features table, acoustic stereonet diagram equal angle lower hemisphere, acoustic rose diagram, acoustic deviation projection, optical features table, optical stereonet diagram equal angle lower hemisphere, and optical rose diagram. All figures were also exported as PDF and accompany this report.

Per standard procedure, televiewer feature classification followed GEOVision Televiewer Feature

Notes and Picking Criteria (Appendix A). Sinusoidal features and corrected tadpoles are displayed on the multi-page televiewer feature log sheets in Appendix A. Corrected acoustic and optical feature depth, dip, and the azimuth of dip data are provided in the Tables, as well as in Microsoft

Excel® format, which accompany this report. Depths on all figures and tables are referenced to the ground surface. Core imagery is referenced to magnetic north while tadpoles and tabulated data reference true north.

Rose diagrams and stereonets were processed for both acoustic and optical features. Feature types are denoted in the log legends and identified by color. The same color key is used for the tadpole logs and stereonet joint poles. Clusters of features on the stereonets are not color coded. In the stereonet legend, each row represents a feature type by associated color, listing the total feature count, average dip and average azimuth of all features of that type on the stereonet.

Borehole deviation data extracted from the acoustic televiewer logs are presented graphically in the Figures and summarized in Table 3. Boreholes were logged in their entirety, from surface to total depth, to acquire deviation data; only the portions below water were processed for features.

Deviation data plots are provided in bitmap format and deviation data tabulated at 1-foot intervals are provided in Excel® format. Deviation azimuths in the Excel® tables reference true north.

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 14 of 255 May 30, 2019

SUMMARY

Discussion of Televiewer / Boring Deviation Results

Both acoustic and optical televiewer data were collected in all boreholes. Optical images were of very good quality above fluid level. However, in some boreholes water was cloudy, degrading image quality below fluid level. Some bedding and discontinuity features are identifiable in both optical and acoustic televiewer logs, while other features are only visible in optical or acoustic. For example in some borings, banding, veining, or bedding features are clearly visible on the optical logs but are not in the acoustic logs. In several borings, low water level limited acoustic imaging to the bottom portion of the boreholes where rock was more solid, hard and intact. As such, these sections contain fewer features or fractures, limiting comparability between overlapping optical and acoustic logs. This is particularly noticeable in 1F-19-05 and 1F-19-06.

Quality Assurance

These borehole geophysical measurements were performed using industry-standard or better methods for measurements and analyses. All work was performed under GEOVision quality assurance procedures, which include:

Use of NIST-traceable calibrations, where applicable, for field and laboratory instrumentation

Use of standard field data logs

Independent review of calculations and results by a registered professional engineer, geologist, or geophysicist.

Televiewer Data Reliability

Depth indications are very reliable with estimated precision of +/- 0.2 feet. Estimated precision of dip is +/- 5 degrees and azimuth of dip is +/- 10 degrees. Standardized field procedures and quality assurance checks add to the reliability of these data.

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 15 of 255 May 30, 2019

CERTIFICATION

All geophysical data, analysis, interpretations, conclusions, and recommendations in this document have been prepared under the supervision and review of a GEOVision California professional geophysicist or engineer.

Prepared by:

5/30/2019

Emily Feldman Date Senior Staff Geophysicist GEOVision Geophysical Services

Reviewed and approved by

5/30/2019 Victor M Gonzalez Date California Professional Geophysicist, PGp. 1074 GEOVision Geophysical Services

This geophysical investigation was conducted under the supervision of a California

Professional Geophysicist or Engineer using industry standard methods and equipment. A high degree of professionalism was maintained during all aspects of the project from the field investigation and data acquisition, through data processing, interpretation and reporting. All original field data files, field notes and observations, and other pertinent information are maintained in the project files and are available for the client to review for a period of at least one year.

A professional geophysicist’s certification of interpreted geophysical conditions comprises a declaration of his/her professional judgment. It does not constitute a warranty or guarantee, expressed or implied, nor does it relieve any other party of its responsibility to abide by contract documents, applicable codes, standards, regulations or ordinances.

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 16 of 255 May 30, 2019

Figure 1: Concept illustration of acoustic televiewer probe

GEOVision Report Success Dam Televiewer 19077-01 rev 3 Page 17 of 255 May 30, 2019

Table 1. Boring locations and logging dates

BORING

DATE

DRILLING

COMPLETE

DATE

LOCATION(1)

(FEET)

ELEVATION(1)

(FEET) DESIGNATION LOGGED EASTING NORTHING

1F-19-04 3/22/2019 4/3/2019 6,583,525 1,906,897 765

1F-19-05 3/27/2019 4/3/2019 6,583,238 1,906,732 795

1F-19-06 4/01/2019 4/4/2019 6,583,069 1,906,577 750

1F-19-08 2/26/2019 3/11/2019 6,583,767 1,906,573 653

1F-19-09 2/20/2019 3/12/2019 6,583,648 1,906,419 653

1F-19-10 2/27/2019 3/12/2019 6,583,692 1,906,509 653

1F-19-12 2/28/2019 3/12/2019 6,583,550 1,906,409 653

1F-19-15 2/23/2019 3/12/2019 6,583,550 1,906,593 652

1F-19-22 4/02/2019 4/4/2019 6,583,049 1,906,252 690

(1) Coordinates and elevations provided by USACE, NAD 83, CA State Plane Zone 4, Vertical datum NAVD88

Table 2. Logging dates and depth ranges

BORING

NUMBER

TOOL AND RUN

NUMBER

DEPTH

RANGE

(FEET)

CASED OR

UNCASED

WATER

LEV…