mta-bor2980-1_Combined Asbestos Report 999-5098.pdf

Asbestos • Lead-Based Paint • Industrial Hygiene • Indoor Air Quality

201 South 30th Street Billings, Montana 59101

Phone: 406/245-7766

FAX: 406/254-1428

Billings, MT ♦ Helena, MT

August 27, 2024

Mr. Brad Thompson, P.E.

Robert Peccia & Associates 3147 Saddle Drive Helena, MT

RE: Letter Report Asbestos Survey Sun River Bridge NBI Structure #MTA-SR-001 West of Augusta, Montana Northern Project Number 999-5098

Dear Mr. Thompson:

This letter report provides the summarized results of the asbestos survey conducted by Christopher Hust (MTA-5681, exp. 02/16/2025) of Northern Industrial Hygiene, Inc.

(Northern) on July 9, 2024 at the above referenced site. The survey was conducted to identify potential hazardous materials (asbestos) that may be present on the bridge. This survey was conducted prior to a planned renovation of the bridge.

Overview of Building

The Sun River Bridge is a single lane bridge made of concrete slab deck with metal support beams, a concrete support pillar, and concrete abutments. The bridge was originally built in 1916 and is about 250 feet long crossing the Sun River just downstream of Gibson Reservoir, spanning Teton and Lewis and Clark counties.

Asbestos Overview

Asbestos is a trade name for a group of fibrous naturally occurring minerals that were used widely in building materials because of its ability to bind, resist chemicals, insulate, and fireproof. Exposure to elevated levels of asbestos fibers has been documented to cause a variety of diseases including asbestosis and cancer. Consequently, the application, removal, and disposal of asbestos-containing materials is regulated by several agencies.

Asbestos in most building materials poses little threat to human health as long as the asbestos fibers are securely bound within the building material. However, as the materials deteriorate because of time or exposure, or are disturbed because of human or other activities, the potential increases for the fibers to become airborne. When this occurs, the risk to human health increases significantly when the fibers are inhaled.

The Environmental Protection Agency (EPA) National Emission Standards for Hazardous Air Pollutants (NESHAP) defines an asbestos-containing material (ACM) as a material containing greater than (>) 1% asbestos and assigns ACM to three categories: regulated

Northern Industrial Hygiene, Inc.

Mr. Brad Thompson Asbestos Survey Sun River Bridge West of Augusta, Montana August 27, 2024 asbestos-containing material (RACM), Category I, and Category II. RACM is defined as an ACM that, when dry, can be crumbled, pulverized or reduced to powder by hand pressure (friable). RACM also includes: Category I and Category II materials that will be (or have been) subjected to sanding, grinding, cutting or abrading, or; Category II materials that have a high probability of becoming (or have become) crumbled, pulverized, or reduced to powder by the forces expected to act on the material in the course of demolition/renovation operations. Category I ACMs are non-friable packings, gaskets, resilient floor covering, and asphalt roofing products. Category II ACMs are non-friable materials, excluding Category I non-friable ACMs, that, when dry, cannot be crumbled, pulverized, or reduced to powder by hand pressure.

The NESHAP requires that the building owner or operator provide notification at least 10 working days prior to commencing renovation activities that will disturb more than 160 square feet (SF) or 260 linear feet (LF) of RACM, or prior to any demolition activities.

The NESHAP also requires that RACM be removed prior to renovation/demolition activities that will disturb the material.

The Montana Department of Environmental Quality (MDEQ) adopted the NESHAP by reference and requires the building owner/operator to apply for an Asbestos Abatement Permit at least 5 working days prior to commencing asbestos abatement project involving > 10 SF but less than (<) 160 SF in surface area or >3 LF but < 260 LF of RACM. The permit application must be submitted at least ten working days prior to commencing an asbestos abatement project involving >160 SF or 260 LF of RACM or prior to any demolition. Notification of the MDEQ satisfies the NESHAP notification requirement.

The MDEQ requires that personnel conducting permitted asbestos abatement projects be accredited by the State of Montana. The MDEQ also requires an asbestos abatement design be prepared by a State of Montana accredited asbestos project designer for projects requiring an Asbestos Abatement Project Permit.

The Occupational Safety and Health Administration (OSHA) requires that employees that will be exposed to any amount of asbestos be trained in accordance with the provisions of 29 CFR 1926.1101. The OSHA standard also requires that employee exposure to asbestos fibers not exceed either the permissible exposure limit (PEL) of 0.1 fibers per cubic centimeter (f/cc) of air for an eight (8) hour time-weighted average (TWA) or the excursion limit (EL) of 1.0 f/cc for any thirty (30) minute work period.

Asbestos Survey Procedures

Sampling Procedures

The asbestos survey was conducted using the applicable portions of the currently recognized standard protocol developed for schools under AHERA, as promulgated in Title

Asbestos Survey Sun River Bridge West of Augusta, Montana August 27, 2024

40, Code of Federal Regulations (40 CFR), Part 763 and as amended in the Federal Register and as established in ARM 17.74.354. Since the primary concern for this investigation was to identify potential asbestos hazards in the entire building, Northern representatives visually surveyed existing conditions considering each construction, addition, or renovation date as separate, unique buildings, if applicable.

Laboratory Analysis of Bulk Samples

Bulk samples collected during the survey were assigned bulk sample numbers and entered on sample summary/chain-of-custody forms. The samples were submitted to the laboratory by overnight courier under standard chain-of-custody procedures. The analysis was conducted in accordance with EPA Method 600/R-93/116, which employs polarized light microscopic techniques with dispersion staining for identification of mineral forms of asbestos. The quantification of asbestos in the sample is intended to be an estimate only and the limit of detection for this method is approximately 1% by volume.

Asbestos Survey Findings

A total of four (4) homogeneous areas of building materials were identified in the structure.

These four (4) materials were sampled following sample collection requirements outlined under the EPA, AHERA legislation and State of Montana regulations.

Laboratory results revealed that none of the sampled materials contain asbestos.

For additional information refer to Table 1 and the attached laboratory analysis report.

Conclusions and Recommendations

Asbestos was not found in any of the suspect materials sampled and analyzed therefore Northern offers no recommendations regarding these materials during renovation work.

It is recommended the owner or operator keep a copy of this asbestos survey report on site during the renovation project and during any subsequent renovation projects. The report must be made available to the MDEQ upon request.

Limitations

This asbestos survey report was prepared based on information obtained during our on-site observations and interpretation of the laboratory analysis of bulk samples of building materials collected during the survey. The conclusions of this report are professional opinions based solely upon our visual site observations and interpretations of laboratory analyses and field data as described in our report.

Asbestos Survey Sun River Bridge West of Augusta, Montana August 27, 2024

This report has been prepared to provide information concerning the various types and estimated quantities of asbestos-containing materials present at this site. It includes only those materials that were visible and accessible at the time of our survey. We did not remove any permanent building enclosures or disassemble any equipment.

This survey report is intended to identify asbestos-containing materials. It is not intended to be used for the purpose of obtaining bids for its removal by abatement contractors. The scope of services completed by Northern may not be appropriate to satisfy the needs of other users, and any use or re-use of this document, or the findings presented herein, is at the sole risk of the user.

Our opinions are intended exclusively for use by Robert Peccia and Associates. The opinions presented herein apply to the site conditions existing at the time of our investigation. Therefore, our opinions and recommendations may not apply to future conditions that may exist at the site that we have not had the opportunity to evaluate.

We trust this summary report provides sufficient information for planning purposes. We appreciate the opportunity to assist you and look forward to continuing to work with you.

Please contact us if you have any questions or require additional information.

Respectfully submitted, NORTHERN INDUSTRIAL HYGIENE, INC.

Chris Hust EPA/Montana Accredited Asbestos Inspector

Attachments: Table 1 Laboratory Analysis Report Inspector Credentials Invoice

TABLE 1

SUMMARY OF MATERIALS SUSPECTED TO CONTAIN ASBESTOS

AND LABORATORY RESULTS

HA # Material Description Friable (Y/N) Sample Locations Laboratory Results

M14.1 Concrete Bridge Deck Slabs N SW End of Bridge, Center of Bridge, NW End of Bridge ND

M14.2 Abutment Concrete N SW End of Bridge, NW End of Bridge ND

M14.3 Concrete Pier Support Foundation N NW End of Bridge ND

M20.1 Vapor Barrier Under Concrete Deck Slabs N Center of Bridge ND

West of Augusta, Montana

Sun River Bridge NBI Structure #MTA-SR-001

NS = Material Not Sampled ND = No Asbestos Detected

Confirmed Asbestos-Containing Materials Shown in Bold Type Table 1

EMSL Analytical, Inc.

3356 West Catalina Drive Phoenix, AZ 85017

Tel/Fax: (602) 276-4344 / (602) 276-4053 http://www.EMSL.com / phoenixlab@emsl.com

122404489EMSL Order:

Customer ID: NIHI62

Customer PO:

Project ID:

Attention: Phone:Chris Hust (406) 245-7766

Fax:Northern Industrial Hygiene, Inc. (406) 254-1428

Received Date:201 South 30th Street 07/11/2024 10:15 AM

Analysis Date:Billings, MT 59101 07/17/2024

Collected Date: 07/09/2024

Project: 999-5998 / Sun River Bridge

Test Report: Asbestos Analysis of Bulk Materials via AHERA Method 40CFR 763 Subpart E

Appendix E supplemented with EPA 600/R-93/116 using Polarized Light Microscopy

Sample Description Appearance % Fibrous % Non-Fibrous

Non-Asbestos Asbestos

% Type

M14.1A

122404489-0001

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

Concrete Bridge Deck

Slabs

M14.1B

122404489-0002

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

Concrete Bridge Deck

Slabs

M14.1C

122404489-0003

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

Concrete Bridge Deck

Slabs

M14.2A

122404489-0004

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

Abutment Concrete

M14.2B

122404489-0005

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

Abutment Concrete

M14.2C

122404489-0006

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

Abutment Concrete

M14.3A

122404489-0007

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

Concrete Pier Support

Foundation

M14.3B

122404489-0008

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

Concrete Pier Support

Foundation

M14.3C

122404489-0009

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

Concrete Pier Support

Foundation

M20.1A

122404489-0010

None DetectedNon-fibrous (Other)100%Black

Non-Fibrous

Homogeneous

Vapor Barrier On

Underside Of

Concrete Deck Slabs

M20.1B

122404489-0011

None DetectedNon-fibrous (Other)100%Black

Non-Fibrous

Homogeneous

Vapor Barrier On

Underside Of

Concrete Deck Slabs

M20.1C

122404489-0012

None DetectedNon-fibrous (Other)100%Black

Non-Fibrous

Homogeneous

Vapor Barrier On

Underside Of

Concrete Deck Slabs

Initial report from: 07/18/2024 10:20:14

Page 1 of 2ASB_PLM_0008_0002 - 2.31 Printed: 7/18/2024 7:20 AM

EMSL Analytical, Inc.

3356 West Catalina Drive Phoenix, AZ 85017

Tel/Fax: (602) 276-4344 / (602) 276-4053 http://www.EMSL.com / phoenixlab@emsl.com

122404489EMSL Order:

Customer ID: NIHI62

Customer PO:

Project ID:

Analyst(s)

Emma Campbell (4)

Nathan Stancik (8)

Erica Furphy, PLM Supervisor or Other Approved Signatory

EMSL maintains liability limited to cost of analysis . Interpretation and use of test results are the responsibility of the client. This report relates only to the samples reported above, and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations . The report reflects the samples as received.

Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. The above analyses were performed in general compliance with Appendix E to Subpart E of 40 CFR (previously EPA 600/M4-82-020 “Interim Method”) but augmented with procedures outlined in the 1993 (”final”) version of the method. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non- friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis . Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample. Estimation of uncertainty is available on request.

Samples analyzed by EMSL Analytical, Inc. Phoenix, AZ NVLAP Lab Code 200811-0, AZ0937, CO AL-19027, CA 2761, TX 300484, HI L-14-004, LA 05113

Initial report from: 07/18/2024 10:20:14

Page 2 of 2ASB_PLM_0008_0002 - 2.31 Printed: 7/18/2024 7:20 AM

OrderID: 122404489

OrderID: 122404489

201 South 30th Street Billings, Montana 59101

Phone: 406/245-7766

FAX: 406/254-1428

Billings, MT ♦ Helena, MT

Asbestos • Lead-Based Paint • Industrial Hygiene • Indoor Air Quality

MONTANA ASBESTOS REPORT SUMMARY

Site of Inspection:

Sun River Bridge NBI Structure #MTA-SR-001 West of August, Montana

Scope of Inspection:

The survey was conducted to identify potential hazardous materials (asbestos) that may be present on the bridge. This survey was conducted prior to a planned renovation of the bridge.

Date of Inspection: July 9, 2024

Date of Inspection Report: August 6, 2024

Signature:

Inspector Accreditation No. MTA-5681 Expiration Date: 02/16/2025

Is regulated ACM Present at the time of the survey?

No asbestos-containing materials were identified in this survey.