Addendum_1_07A6290.pdf

PDF 32 MB Posted Mar 10, 2026

Attached to: IFB 07A6296 Painting and Repair Services in Ventura County
Solicitation number: 07A6296
Issued by: Ventura County, California

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Written by GovTribe AI · Mar 19, 2026

Addendum No. 1 to IFB #07A6290 – Roof Replacement and Repair Services

This document is an addendum issued by the California Department of Transportation (Caltrans), Division of Procurement and Contracts, dated March 17, 2026, for Invitation for Bid (IFB) #07A6290 covering roof replacement and repair services at the Commerce Maintenance Station in Los Angeles County. The project involves replacing all skylights with equal or better units, repairing damaged and rotted roof deck (approximately 400 square feet between Buildings A and B), installing new Thermoplastic Polyolefin (TPO) membrane roofing, and related work on multiple buildings (D, E, and F). The addendum provides responses to seven key bidder questions regarding as-built drawings, skylight specifications, deck damage scope, working hours, laydown areas, hazardous materials reports, and sheet metal cap reuse. As-built drawings are available, current skylights feature aluminum frames with two-pane tinted plexiglass, working hours are defined in the Proposed Form of Agreement, and laydown areas will be determined after project commencement based on equipment and material requirements. The addendum includes comprehensive Asbestos-Containing Material (ACM) and Lead-Based Paint (LBP) survey reports for Buildings D, E, and F conducted in January 2026.

The survey reports document that asbestos was detected in nine samples from Building D (ranging from 1.5% to 2.1% chrysotile) and ten samples from Building E (ranging from 1.4% to 9.8% chrysotile), primarily in gray and black mastics used in flashing, vent pipes, and skylight applications. Lead was detected in paint samples from all three buildings, with Building D showing 26–67 mg/kg, Building E showing 18–73 mg/kg, and Building F showing 35–78 mg/kg on blue metal roofing panels. Building F had no asbestos detected in its twelve bulk samples. All contractors must comply with DOSH/Cal-OSHA standards for lead and asbestos handling, prepare project-specific Lead Compliance Plans, and notify the South Coast Air Management District 10 working days prior to any demolition activities. Contractors are responsible for proper waste characterization, segregation, and disposal, and must engage certified asbestos consultants and lead inspectors for monitoring and clearance activities.

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“Improving lives and communities through transportation.”

DEPARTMENT OF TRANSPORTATION

ADMINISTRATION

DIVISION OF PROCUREMENT AND CONTRACTS

1727 30th STREET, MS-65

SACRAMENTO, CA 95816

PHONE (916) 227-6000

TTY 711

https://dot.ca.gov/programs/procurement-and-contracts/

March 17, 2026

Addendum No. 1 Invitation for Bid (IFB) #07A6290

Roof Replacement and Repair Services in Los Angeles County

NOTICE TO ALL PROSPECTIVE BIDDERS:

Addendum No. 1 is being issued for the above-referenced IFB. Bids for this work shall be with the full understanding of this Addendum.

The requested site inspection sign-in sheet is attached.

The following represents question submitted for this IFB and the Department’s response:

Question 1:

Are as-built drawings or roof plans available? If so, will Caltrans provide them?

Answer 1:

Yes, please refer to the attached, As-Built.

Question 2:

Scope of Work (SOW )calls to replace all the skylights with equal or better. Will Caltrans provide us with the manufacture and/or model number of the existing skylights?

Answer 2:

Information not available. Current skylights has aluminum frames with two-pane tinted plexiglass.

Question 3:

SOW calls to replace some damaged and rotted deck. Will Caltrans provide us with an approximate square footage to use for bidding purposes, so all contractors are bidding the same quantity?

Answer 3:

There is a small section between building A & B ( approximately 400 square feet) that we suspect to have damage to the deck due to recent leaks. Other than that we do not suspect any other areas.

http://www.dot.ca.gov/dpac/ http://www.dot.ca.gov/dpac/

“Improving lives and communities through transportation.”

Question 4:

What are the working hours for this project?

Answer 4:

Please refer to the Proposed Form of Agreement, Exhibit A, Item 4.

Question 5:

Is Caltrans providing a lay down area? If so, where will it be and approximately how large of an area are we allowed?

Answer 5:

Once the Job starts a lay down area will be provided based on working equipment and material being used.

Question 6:

Are there any lead and asbestos reports? If so will Caltrans provide them?

Answer 6:

Yes, please refer to attached, Draft Asbestos Containing Materials and Lead-Based Paint Survey Report.

Question 7:

Where the new Thermoplastic Polyolefin (TPO) membrane terminates are we to reuse the existing sheet metal cap or provide new?

Answer 7:

Existing sheet metal cap can be reused as long as it is in good working condition.

All other terms and conditions set forth in the IFB remain in full force and effect.

Sincerely, Kae Saechin Contract Analyst

DRAFT ASBESTOS CONTAINING MATERIAL AND

LEAD-BASED PAINT SURVEY REPORT

Commerce Maintenance Station Buildings D and E Los Angeles, California 90810 Caltrans Contract Number 07-A6010, TO 12 Caltrans Project Identifier EA0Y580

Prepared For:

California Department of Transportation Caltrans District 07, Environmental Engineering Office 100 S. Main Street, MS#16A Los Angeles, California 90012

Submitted By:

Geosyntec Consultants, Inc.

11020 White Rock Road, Suite 120 Rancho Cordova, California 95670

Prepared By:

Bayside Engineering Construction Inc.

2534 State Street San Diego, California 92101 Ronald A. Miller, CAC

(714) 747-8753

Date: February 2026

ACM and LBP Survey Report Commerce Maintenance Station Buildings D and E Caltrans Contract Number 07-A6010 TO 12

Draft ACM and LBP Survey Report ES- 1

EXECUTIVE SUMMARY

As a subconsultant to Geosyntec Consultants, Inc., Bayside Engineering Construction, Inc.

(Bayside) conducted a limited Asbestos-Containing Material (ACM) and Lead-Based Paint (LBP) survey at the request of the California Department of Transportation (Caltrans) District 7. This report presents the results of the survey for the Commerce Maintenance Buildings D and E located at 7300 Bandini Boulevard (the Subject Property) in Los Angeles, California. Bayside performed the survey on January 6, 2026, to support Caltrans' future roof repair activities for the Commerce Maintenance Buildings D and E pursuant to the provisions of contract 07A6010. Caltrans will provide this information to involved contractors for waste profiling and disposition, worker health and safety planning, and compliance with federal, state, and local regulations.

A reasonable effort was made to collect representative samples of suspect ACM and LBP from materials and areas representing the scheduled renovation and repairs at the site. No samples were collected of hazardous materials (cleaners, light ballasts, mercury, and chemicals) located at the Subject Property, as these materials will not be impacted by scheduled construction activities.

The survey was conducted by Mr. Ronald A. Miller, a California Division of Occupational Safety and Health (DOSH/Cal-OSHA) Certified Asbestos Consultant (CAC) 92-0470, and a State of California Department of Public Health Certified Lead Inspector/Assessor (LRC-2518).

The following summarizes the survey and findings:

Bayside collected a total of sixty-four (64) bulk samples from Commerce Maintenance Station Buildings D and E from suspected ACMs and/or Asbestos- Containing Construction Materials (ACCMs). Thirty (30) bulk samples of suspect asbestos were collected from Building D, and thirty-four (34) bulk samples of suspected asbestos from Building E, representing identified homogenous areas in the Subject Property (Buildings D and E roofing materials). Samples were analyzed for asbestos content via Polarized Light Microscopy (PLM) visual estimation method. Asbestos was detected in the nine (9) bulk samples collected from the roof of Building D, and asbestos was detected in ten (10) of the bulk samples collected from Building E (Tables 1 and 2).

Nine (9) samples from Building D and ten (10) from Building E were submitted for an elevated analysis via 1,000 Point count (Environmental Protection Agency's [EPA] Method 600/R-93/116). Samples analyzed for Building D were found to consist of 1.5% to 2.1% chrysotile, and samples from Building E were found to consist of 1.4% to 9.8% chrysotile.

Bayside collected a total of six (6) lead paint samples from the two buildings located at the Commerce Maintenance Facility, Buildings D and E. Two (2) paint chip samples were collected from building D, and four (4) bulk samples were collected from building E and analyzed for total lead content. Lead was detected

Caltrans Contract Number 07-A6010 TO 12

Draft ACM and LBP Survey Report ES- 2 at 26 milligrams/kilogram (mg/kg) and 67 mg/kg in the paint located on the blue metal roofing panels of Building D and 18 mg/kg to 73 mg/kg in the paint located on the blue metal roofing panels of Building E (Tables 3 and 4). Additional LBP paint volume was not collected for solubility testing to minimize surface damage to the panels. Additionally, the roof is not expected to be demolished, and only localized areas will be impacted by future repairs.

A minimum of three (3) bulk samples of each type of suspect ACM building materials were collected. Bulk samples were also collected for LBP analysis. After collection, all samples were placed in sample bags that were labeled with the time, date, location, and condition of each sample.

The sample locations for suspect ACM and LBP are illustrated in Figures 1 through 4. All samples, accompanied by chain-of-custody forms, were submitted to Asset Laboratory for analysis of asbestos content. Asset Laboratory forwarded the asbestos PLM bulk samples to AmeriSci Los Angeles for analysis.

AmeriSci Los Angeles is certified by the National Institute of Standards and Technology's National Voluntary Laboratory Accreditation Program with Lab Code 101904-0. The asbestos bulk samples were analyzed by AmeriSci for asbestos by PLM using U.S. Environmental Protection Agency (EPA) Method 600/R-93/116 as described in the "Interim Method for Determination of Asbestos in Bulk Insulation Samples", 40 Code of Federal Regulations Part 763, Appendix E to Subpart E. The lower limit of detection for this method is 1%. Samples containing less than 1% asbestos by PLM with visual area estimation are reported as 'Trace.'

Asset Laboratory is certified by the Environmental Laboratory Approval Program with Lab Code 2921. Lead bulk sample analyses were conducted by U.S. Environmental Protection Agency Method 6010B uses Inductively Coupled Plasma-Atomic Emission Spectrometry. This method is commonly applied to environmental samples such as paint chips, soils, sediments, dust, and other solid materials following appropriate sample digestion.

Bayside has the following recommendations in the event ACMs, ACCMs, and/or LBPs are discovered based on the findings of these surveys:

A DOSH/Cal-OSHA CAC should be contracted to conduct monitoring and clearance of any removal/abatement of ACMs/ACCMs and materials containing asbestos.

Contractors are responsible for segregating and characterizing waste streams before disposal. Because the concentration of asbestos in Buildings D and E exceeded 1.0%, the material is considered ACM and must be treated and managed as hazardous material debris. Special work practices or management methods are required when working with the asbestos-containing window caulking material.

Caltrans Contract Number 07-A6010 TO 12

Draft ACM and LBP Survey Report ES- 3

A California Certified Department of Public Health Lead Inspector/Assessor should be contracted to conduct visual clearance of any removal and abatement of

LBP.

If future construction activities remove or disturb the sampled paints, Bayside recommends that the contractor performing lead-related construction activities comply with the DOSH/Cal-OSHA Lead in Construction Standard, California Code of Regulations Title 8, §1532.1, including Lead Hazard Communications Training. Contractors are responsible for informing landfills and recycling facilities of the contractor’s intent to dispose of hazardous waste, and/or architectural components containing intact LBP. Some landfills and recycling facilities may require additional waste characterization. Contractors are responsible for segregating and characterizing waste streams prior to disposal.

The survey was limited to directly accessible materials. Any materials that have not been identified in this report should be considered suspect ACMs/ACCMs and handled as ACM unless sampled and proven to be non-ACM by a DOSH/Cal- OSHA CAC. Additionally, any paint materials not identified in this report should be considered suspected LBP and handled as LBP unless sampled and proven to be non-LBP by a California Department of Public Health Lead Inspector/Assessor.

All lead activities must be performed in accordance with all applicable federal, state, and local regulations, including but not limited to those summarized in Appendix C of this report.

In accordance with South Coast Air Management District requirements, written notification to the South Coast Air Management District is required 10 working days prior to commencement of any demolition activity (whether asbestos is present or not).

Regardless of the hazardous waste classification of the LBP samples, we recommend that all paints at the Subject Property be treated as lead-containing for purposes of determining the applicability of the DOSH/Cal-OSHA lead standard during maintenance or renovation activities. Per Caltrans’ requirements, the contractor(s) should prepare a project-specific Lead Compliance Plan (California Code of Regulations Title 8, § 1532.1, the “Lead in Construction” standard) to minimize worker exposure to lead-containing materials.

Commerce Maintenance Station Buildings D & E

Caltrans Contract Number 07-A6010 TO 12

Draft ACM and LBP Survey Report

Table 1

Asbestos Bulk Sample Results Building D

7300 E. Bandini Blvd., Los Angeles, CA

EA0Y580

Sample Number Sample Description Location Friable

Y/N Condition Asbestos Content

1633-COM-A1D Gray Mastic (Air Vent) Rolling Roof N Good 1.8% Chrysotile1

1633-COM-A2D Gray Mastic (Air Vent) Rolling Roof N Good 1.7% Chrysotile1

1633-COM-A3D Gray Mastic (Air Vent) Rolling Roof N Good 2.1% Chrysotile1

1633-COM-A4D Roofing Flashing Rolling Roof N Good None Detected

1633-COM-A5D Roofing Flashing Rolling Roof N Good None Detected

1633-COM-A6D Roofing Flashing Rolling Roof N Good None Detected

1633-COM-A7D Black Mastic (Flashing) Rolling Roof N Good 2.1% Chrysotile1

1633-COM-A8D Black Mastic (Flashing) Rolling Roof N Good 2.0% Chrysotile1

1633-COM-A9D Black Mastic (Flashing) Rolling Roof N Good 2.1% Chrysotile1

1633-COM-A10D Black Mastic (Vent Pipe) Rolling Roof N Good 1.7% Chrysotile1

1633-COM-A11D Black Mastic (Vent Pipe) Rolling Roof N Good 2.0% Chrysotile1

1633-COM-A12D Black Mastic (Vent Pipe) Rolling Roof N Good 1.5% Chrysotile1

1633-COM-A13D Roofing Material (Top) Rolling Roof N Good None Detected

1633-COM-A14D Roofing Material (Middle) Rolling Roof N Good None Detected

Friable

Y/N Condition Asbestos Content

1633-COM-A15D Roofing Material (Bottom) Rolling Roof N Good None Detected

1633-COM-A16D Roofing Material (Top) Rolling Roof N Good None Detected

1633-COM-A17D Roofing Material (Middle) Rolling Roof N Good None Detected

1633-COM-A18D Roofing Material (Bottom) Rolling Roof N Good None Detected

1633-COM-A19D Roofing Material (Top) Rolling Roof N Good None Detected

1633-COM-A20D Roofing Material (Middle) Rolling Roof N Good None Detected

1633-COM-A21D Roofing Material (Bottom) Rolling Roof N Good None Detected

1633-COM-A22D Black Barrier Paper Rolling Roof N Good None Detected

1633-COM-A23D Black Barrier Paper Rolling Roof N Good None Detected

1633-COM-A24D Black Barrier Paper Rolling Roof N Good None Detected

1633-COM-A25D Brown Barrier Paper Rolling Roof N Good None Detected

1633-COM-A26D Brown Barrier Paper Rolling Roof N Good None Detected

1633-COM-A27D Brown Barrier Paper Rolling Roof N Good None Detected

1633-COM-A28D Stucco Material Rolling Roof N Good None Detected

1633-COM-A29D Stucco Material Rolling Roof N Good None Detected

1633-COM-A30D Stucco Material Rolling Roof N Good None Detected

Note 1: Asbestos content based on 1,000 point count

Table 2

Asbestos Bulk Sample Results

Commerce Maintenance Station Building E

7300 E. Bandini Blvd., Los Angeles, CA

EA0Y580

Friable

Y/N Condition Asbestos Content

1633-COM-A1E Screen Material Metal Roof N Good None Detected

1633-COM-A2E Screen Material Metal Roof N Good None Detected

1633-COM-A3E Screen Material Metal Roof N Good None Detected

1633-COM-A4E

Gray Mastic (Flashing

Material) Rolling Roof N Good 9.8% Chrysotile1

1633-COM-A5E

Gray Mastic (Flashing

Material) Rolling Roof N Good 9.3% Chrysotile1

1633-COM-A6E

Gray Mastic (Flashing

Material) Rolling Roof N Good 8.9% Chrysotile1

1633-COM-A7E Black Barrier Paper Rolling Roof N Good None Detected

1633-COM-A8E Black Barrier Paper Rolling Roof N Good None Detected

1633-COM-A9E Black Barrier Paper Rolling Roof N Good None Detected

1633-COM-A10E Grey Mastic (Skylight) Rolling Roof N Good 6.2% Chrysotile1

1633-COM-A11E Grey Mastic (Skylight) Rolling Roof N Good 5.8% Chrysotile1

1633-COM-A12E Grey Mastic (Skylight) Rolling Roof N Good 6.0% Chrysotile1

1633-COM-A13E Gray Vent Mastic Rolling Roof N Good 3.3% Chrysotile1

Friable

Y/N Condition Asbestos Content

1633-COM-A14E Gray Vent Mastic Rolling Roof N Good 1.4% Chrysotile1

1633-COM-A15E Gray Vent Mastic Rolling Roof N Good 1.6% Chrysotile1

1633-COM-A16E Vent Pipe Mastic Rolling Roof N Good 5.1% Chrysotile1

1633-COM-A17E Gray Flashing Material Rolling Roof N Good None Detected

1633-COM-A18E Gray Flashing Material Rolling Roof N Good None Detected

1633-COM-A19E Gray Flashing Material Rolling Roof N Good None Detected

1633-COM-A20E

Roofing Material (Top