Geotech On-Call 2026 - Addendum 1 Final.pdf

September 11, 2026

ON-CALL GEOTECHNICAL,

MATERIALS TESTING & SPECIAL INSPECTION ENGINEERING CONSULTING

SERVICES

ADDENDUM #1

This addendum is issued to inform interested geotechnical engineering consultants of revisions to the City’s Request for Proposals/Qualifications for On-Call Geotechnical, Materials Testing &

Special Inspection Engineering Consulting Services. The following changes are hereby made effective as though originally issued with the Request for Proposals/Qualifications:

CHANGES TO REQUEST FOR PROPOSALS/QUALIFICATIONS

1. Delete Table of Contents and Replace with Attachment 1.

2. Delete Section VI Proposal Submittal Requirements Item A-11 and Replace with the following:

11. Schedule of fees, including personnel hourly rates using the format included in

Attachment D, and rates for all proposed materials testing services using the format included in Attachment E. Include fee schedule for Proposer and subconsultant(s) of all tiers. Physically provide fee proposal in a separate, sealed envelope, clearly identified as the Proposer’s Fee

Proposal. Fillable forms for Attachments D and E are available on Planet Bids in the

‘Documents’ tab.

3. Delete Attachment D Material Testing Laboratory Rate Schedule Worksheet (Prevailing

Wages) and Replace with Attachment 2.

4. Add Attachment E Material Testing Laboratory Rate Schedule Worksheet (Prevailing

Wages) with Attachment 3.

QUESTIONS AND ANSWERS

1. Questions and Answers, Attachment 4 are included and made part of this addendum.

Request for Proposals/Qualifications for On-Call Geotechnical, Materials Testing, & Special Inspection Engineering Consulting Services

ATTACHMENT 1

TABLE OF CONTENTS

Table of Contents

Table of Contents

I. INTRODUCTION

II. SCOPE OF SERVICES

III. PREVAILING RATES OF WAGE

IV. PROJECT LABOR AGREEMENT (PLA) APPLICABILITY

V. DEPARTMENT OF INDUSTRIAL RELATIONS REGISTRATION (DIR)

VI. PROPOSAL SUBMITTAL REQUIREMENTS

VII. GENERAL REQUIREMENTS AND AUTHORITY OF THE CITY OF CHULA VISTA

VIII. SUBMISSION OF PROPOSAL

IX. INSURANCE REQUIREMENTS

X. CONSULTANT SELECTION

XI. SCHEDULE OF WORK

XII. AGREEMENT EXTENSION

XIII. CITY CONTACT FOR RFP/RFQ INQUIRIES

Attachment A: City of Chula Vista Two-Party Agreement including Project Labor

Agreement

Attachment B: Acknowledgment of Project Labor Agreement Document 00460 and Letter of Assent

Attachment C: City of Chula Vista’s Department of Engineering & Capital Projects 2024

Quality Assurance Program

Attachment D: Labor Rate Schedule Worksheet

Attachment E: Material Testing Laboratory Rate Schedule Worksheet (Prevailing Wages)

ATTACHMENT 2

LABOR RATE SCHEDULE WORKSHEET

DATE: mm/dd/yyyy

Agreement Execution Date - 6/30/2028 Straight Time Overtime Double Time

LABOR CLASSIFICATION NAME

Consultant or Subconsulant Name

CITY OF CHULA VISTA RFP/RFQ FOR ON-CALL GEOTECHNICAL, MATERIALS TESTING & SPECIAL INSPECTION ENGINEERING CONSULTING SERVICES

LABOR RATES

Attachment D: Labor Rate Schedule Worksheet

DATE: mm/dd/yyyy

Agreement Execution Date - 6/30/2028 Straight Time Overtime Double Time

LABOR CLASSIFICATION NAME

Consultant or Subconsulant Name

LABOR RATES

ATTACHMENT 3

LABORATORY RATE SCHEDULE WORKSHEET

(PREVAILING WAGES)

Consultant or Subconsulant Name DATE: mm/dd/yyyy

Fee per Each Test Performed by Outside

Lab (Y/N)

CONCRETE MATERIAL TESTING

1 Compression Test, 6 X 12 Cylinder ASTM C39 2 Compression Test, Core *(excluding sample preparation) ASTM C42 3 Compression Test, Shotcrete panel core (3 cores per panel). Per panel ASTM C42 4 Concrete Mix Design or Mix Review (excluding aggregate tests) 5 Saw cutting of Sample

MASONRY MATERIAL TESTING

6 Compression Test, Block (8x8x16 or smaller), per 3 unit set ASTM C67 7 Compression Test, Mortar, 2x4 cylinder (UBC) ASTM C140 8 Compression Test, Grout (UBC) UBC 21-16 9 Compression Test, Core

10 Compression Test, Shear 11 Masonry Prism, Full Size (8x16x16), each ASTM C1314 12 Masonry Prism, Half Size (8x16x8), each ASTM C1314 13 Conformance Package (including all testing and report, 6 units) ASTM C90

AGGREGATE MATERIAL TESTING

14 Sieve Analysis, Coarse Aggregate ASTM C136 15 Sieve Analysis, Fine Aggregate ASTM C136 16 Specific Gravity, Coarse Aggregate, ASTM C127 17 Specific Gravity, Fine Aggregate , ASTM C128 18 pH & Resistivity, each

ASPHALT CONCRETE MATERIAL TESTING

19 Stability Test - Marshall, ave of 3, unit weight & flow ASTM D1559 20 Asphalt Concrete Mix Design or Mix Review 21 Unit Weight Requiring Compaction, (Marshall) ASTM D1559, T245

CITY OF CHULA VISTA RFP/RFQ FOR ON-CALL GEOTECHNICAL, MATERIALS TESTING & SPECIAL INSPECTION ENGINEERING CONSULTING SERVICES

LABORATORY RATES

Agreement Execution Date - 6/30/2028Test IDPRIMARY TEST/NAME

Attachment E: Material Testing Laboratory Rate Schedule Worksheet (Prevailing Wages)

Performed by Outside

Lab (Y/N)

LABORATORY RATES

Agreement Execution Date - 6/30/2028Test IDPRIMARY TEST/NAME

FULL DEPTH RECLAMATION SUBGRADES TESTING

22 Wetting & Drying compacted soil cement mixtures (559) ASTM D559-03 23 Freezing and Thawing compacted soil cement mixtures (560) ASTM D560-03 24 Moisture Density test for Soil Cement ASTM D558

25 Standard Test Method for Resistance R-Value and Expansion Pressure of Compacted Soils ASTM D2844-94

26 Standard Test Method for Unconfined Compressive Strength of Compacted Soil ASTM D5102-96

Observing Micro-Cracking operations and performing stiffness testing of the CTS materials using a Geogauge.

GEOTECHNICAL MATERIAL TESTING

28 Shear Tests (single point) ASTM D3080 29 Consolidation Tests ASTM D2435, CT219 30 Moisture-Density ASTM D2216 31 C.B.R. Tests (Includes Compaction Test) ASTM D1883 32 Lime Treated CBR ASTM D1883

33 R-Value (Lime Treated)

ASTM D2844, CA TEST

34 Mechanical Analyses - Sieve Test ASTM C136

35 Mechanical Analyses - Hydrometer Test

ASTM D421/ ASTM

D422

36 Sand Equivalent ASTM D2419 37 Plasticity Index ASTM D4318 38 Expansion Index ASTM D4829 39 Specific Gravity ASTM D854 40 Unconfined Compression 41 Triaxial Tests - Std. Test, undrained, unconsolidated 42 Triaxial Tests - Effective Stress Test 43 Remolded Samples (Preparation) 44 Corosivity Tests (Sulfate, Chloride, pH, min. resistivity)

Performed by Outside

Lab (Y/N)

LABORATORY RATES

Agreement Execution Date - 6/30/2028Test IDPRIMARY TEST/NAME

LABORATORY METAL SERVICES - MECHANICAL TESTING

45 Mechanical Coupler Testing (Tensile, Yield, Slippage & Sample Preparation), each 46 Tensile Testing up to No. 11 Bar (ultimate strength only), each 47 Tensile Testing No. 14 Bar (ultimate strength only), each 48 Tensile Testing No. 18 Bar (ultimate strength only), each 49 Tensile Testing (ultimate strength only), Flat Bar Reduced Section, each

50 Tensile Testing (ultimate strength only), Round Bar Reduced Section 0.505” Diameter, each

51 Tensile Testing (ultimate strength only), Round Bar Reduced Section, sub-size, each 52 Tensile Testing (ultimate strength only), Yield Strength Testing (by extensometer), each 53 Tensile, Full Section Tube, each 54 Bend Test, each 55 Fillet Weld Break Test, each 56 Charpy Impact: Ambient Temperature, per set of 3 57 Charpy Impact: Ambient – 40°F, per set of 3 58 Charpy Impact: - 41°F to –100°F 59 Charpy Individual Specimens for Transition Curve 60 Additional Charge for Reporting Percent Shear, per set 61 Additional Charge for Reporting Mils Lateral Expansion, per set 62 Rockwell Hardness, per set of 3 63 Sample Preparation (as required) 64 Bearing Pad Tests 65 Special Tests

LABORATORY METAL SERVICES - MACHINING

66 Charpy Impact Specimens, Carbon Steel, per set of 3 67 Charpy Impact Specimens, Carbon Steel, Sub-Size, per set of 3 68 Charpy Impact Specimens, Other Materials, per set of 3 69 Charpy Impact Specimens, Other Materials, Sub-Size, per set of 3 70 Carbon Steel, Flat Bar Reduced Section, each

Performed by Outside

Lab (Y/N)

LABORATORY RATES

Agreement Execution Date - 6/30/2028Test IDPRIMARY TEST/NAME

71 Carbon Steel, Round Bar 0.505” Diameter, each 72 Carbon Steel, Round Bar Sub-Size, each 73 Other Materials, Flat Bar Reduced Section, each 74 Other Materials, Round Bar 0.505” Diameter, each 75 Other Materials, Round Bar Sub-Size, each 76 Macro Specimens, Carbon Steel, each 77 Macro Specimens, Other Materials, each 78 General Machining Charge, per hour

LABORATORY METAL SERVICES - HIGH STRENGTH BOLT TESTING

79 Hardness (Bolt, Washer, Nut), each A-370 80 Bolt Assembly Standard Wedge, each 81 Bolt Proof testing, each

ASTM Testing Methods 82 Fine Sieve Analysis with 200 Wash ASTM C117 83 Sieve Analysis of Fine and Coarse Aggregate ASTM C136 84 Compressive Strength – Concrete Cylinder (Set of Three) ASTM C39 85 Compaction Characteristics of Soil Using the Modified Proctor Method ASTM D1557 86 Maximum specific Gravity and Density of Bituminous Paving Mixtures ASTM D2041 87 Extraction of Bitumen from Bituminous Paving Mixtures ASTM D2172 88 Sand Equivalent Value of Soils and Fine Aggregates ASTM D2419 89 Specific Gravity and Density of Compacted Bituminous Paving Mixtures ASTM D2726 90 Consistency Test and Wet Track Abrasion Test ASTM D3910 91 Abrasion and Impact in the L.A. Machine ASTM C131 92 Potential Reactivity of Aggregate ASTM C289 93 Organic Impurities in Fine Concrete Aggregates ASTM C40 94 Testing Drilled Concrete Cores (Compression Test Only, Set of 3) ASTM C42 95 Flexural Strength of Concrete ASTM C78 96 Soundness of Aggregates by Use of Sulfates ASTM C88 97 Particle-Size Analysis of Soils ASTM D422

Performed by Outside

Lab (Y/N)

LABORATORY RATES

Agreement Execution Date - 6/30/2028Test IDPRIMARY TEST/NAME

Caltrans Testing Methods 98 Sieve Analysis of Fine and Coarse Aggregates CA TEST 202 99 Relative Compaction of Untreated and Treated Soils and Aggregates CA TEST 216

100 Sand Equivalent CA TEST 217 101 Moisture Content in Soils by Oven Drying CA TEST 226 102 “R” Value of Soils by Stabilometer CA TEST 301 103 Preparation of Bituminous Mixtures for Testing (Built into Hourly Rate) CA TEST 304 104 Moisture Vapor Susceptibility of Bituminous Mixtures CA TEST 307 105 Specific Gravity and Weight of Compressed Bituminous Mixtures CA TEST 308

Design and Testing of Class “A” Cement Treated Base (Complete CTB Design, including laboratory conformance testing of aggregates)

CA TEST 312

107 Stabilometer Value of Bituminous Mixtures CA TEST 366 108 Recommending Optimum Bitument Content (OBC) CA TEST 367

109 In-Place Density and Relative Compaction of Asphalt Concrete Pavement (Built into Hourly Rate) CA TEST 375

110 Asphalt Content of Bituminous Mixtures CA TEST 379 111 Compressive Strength of Molded Concrete Cylinders CA TEST 521

Mixing, Storing, and Handling Concrete Compressive Strength Specimens in the Field (Built into Hourly Rate)

CA TEST 540

113 Percentage of Crushed Particles CA TEST 205 114 Abrasion of Coarse (500 Revolutions) CA TEST 211 115 Aggregate – L.A. Rattler (1,000 Revolutions) 116 Organic Impurities in Concrete Sand CA TEST 213 117 Soundness of Aggregates by Use of Sodium Sulfate CA TEST 214 118 Evaluating Cleanness of Coarse Aggregates CA TEST 227 119 Test for Durability Index CA TEST 229

Determination of Moisture in Soils, Minerals Aggregates, and Bituminous Mixtures by Xylene Reflux Distillation

CA TEST 311

Others

Performed by Outside

Lab (Y/N)

LABORATORY RATES

Agreement Execution Date - 6/30/2028Test IDPRIMARY TEST/NAME

ATTACHMENT 4

QUESTIONS AND ANSWERS

Attachment 4: Questions and Answers

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Question 1

Does the sealed fee proposal count against the 50-page limit?

➢ No. Sealed fee proposals do not count against the 50-page limit.

Question 2

Are the five hard copies and USB due within five business days after September 16 — roughly

September 23?

➢ Delivery of hard copy documents and USB drive are due September 23, 2026.

Question 3

Will forms, including Exhibits C and D, be considered part of the page count?

➢ No. Forms for Attachment D will not be counted towards page count. There is no Exhibit

C in the RFP. There is an Attachment C which is the City's QAP, provided for reference.

Do you have fillable forms for Exhibits C and D?

➢ Yes. For Attachment D see the fillable form in excel format in the Documents Tab, added via addendum. There is no Exhibit C in the RFP.

Do subconsultants need to complete Exhibits C and D?

➢ Yes. Subconsultants need to provide the information required by Attachment D.

Question 4

The Project Labor Agreement included in the RFP/RFQ is not signed by Operating Engineers

Local 12. Operating Engineers Local 12 is the union that would be responsible for the scope of work detailed in the RFP/RFQ. Has Local 12 signed on to this agreement? If not, will the scope of work be exempt from the PLA?

➢ No, Operating Engineers Local 12 has not signed the City of Chula Vista’s Project Labor

Agreement. As a result, the Construction and/or Building Inspector and Field Soils and

Material Tester job classifications are not subject to the PLA requirements. Refer to

RFP/RFQ Section IV Project Labor Agreement (PLA) Applicability.

Question 5

Regarding Consultant Services Agreement, Section 1.4, Standard of Care: Will the City strike the word "highest" from this provision? The language creates a heightened warranty that the

Consultant will perform above the appropriate standard of care for professional services. This risk is generally inconsistent with professional services agreements, where the Consultant is typically responsible for performing in accordance with the care and skill ordinarily used by members of the same profession.

➢ No. The City will not strike the word "highest".

Attachment 4: Questions and Answers

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Question 6

Regarding Consultant Services Agreement, Section 1.6 and Exhibit A Section 5, Security for

Performance: Will the City confirm that the "Security for Performance" box in Exhibit A, Section 5 will be marked "None"? Such security is generally not appropriate for professional services.

➢ Yes. Security for Performance will not apply to Two Party Agreements issued under this

RFP/RFQ.

Question 7

Regarding Consultant Services Agreement, Section 2.4, Retention Policy: Will the City remove this provision so that no retention will be withheld from payments due to Consultant?

Professional services do not involve the same performance and completion risks as construction work, for which retention is more commonly utilized. As such, retention is generally not appropriate for professional services.

➢ Yes. Retention Policy will not apply to Two Party Agreements issued under this

RFP/RFQ.

Question 8

Regarding Consultant Services Agreement, Section 4.1, Indemnification, General: Will the

District revise the indemnification provision as follows? The current language is inconsistent with industry standards for professional services. 4.1 General. To the maximum extent allowed by law, Consultant shall timely and fully protect, defend, reimburse, indemnify and hold harmless City, its elected and appointed officers, agents, employees and volunteers (collectively, "Indemnified Parties"), from and against any and all claims, demands, causes of action, costs, expenses, (including reasonable attorneys' fees and court costs), liability, loss, damage or injury, in law or equity, to property or persons, including wrongful death. (Remove: in any manner arising out of or incident to) (Replace With: to the extent caused by) and (Remove: alleged)

(Replace With: negligent) acts, omissions, negligence, or willful misconduct of Consultant, its officials, officers, employees, agents, and contractors, arising out of or in connection with the performance of the Required Services, the results of such performance, or this Agreement. This indemnity provision does not include any claims, damages, liability, costs and expenses arising from the (Remove: sole) negligence or willful misconduct of the Indemnified Parties. (Remove:

Also covered is liability arising from, connected with, caused by or claimed to be caused by the active or passive negligent acts or omissions of the Indemnified Parties which may be in combination with the active or passive negligent acts or omissions of the Consultant, its employees, agents or officers, or any third party.)

➢ No.