Attachment 6 Limited Asbestos Survey.pdf

860 9th Street NE, Unit K

West Fargo, ND 58078

P (701) 282-9633

F (701) 282-9635

Terracon.com

Facilities | Environmental | Geotechnical | Materials I

April 15, 2025

Schemmer Associates, Inc.

1044 North 115th Street, Suite 300

Omaha, Nebraska 68154-4436

Attn: Mr. Tom Svoboda

P: (402) 670-9578

E: tsvoboda@schemmer.com

RE: Limited Asbestos Survey

Northern Crop Sciences Laboratory Roof Inspection

1307 18th Street North

Fargo, Cass County, North Dakota

Terracon Project No. M1257003

Dear Mr. Svoboda:

Terracon Consultants, Inc. (Terracon) is pleased to submit this report to Schemmer

Associates, Inc. (Client). This report presents the results of a limited asbestos survey

(survey) performed at the above-referenced site. The survey was conducted on March 26, 2025, and was completed in accordance with Terracon Proposal No. PM1257003.

Asbestos-containing materials (ACM) were not identified by the laboratory as a result of the survey. A summary of suspect ACM, sample locations, photographs of sampled materials, and laboratory analytical report and chain of custody are provided in the Appendices. Please refer to the report for additional details.

Limited Asbestos Survey

Northern Crop Sciences Laboratory Roof Inspection | Fargo, North Dakota

April 15, 2025 | Terracon Project No. M1257003

Facilities | Environmental | Geotechnical | Materials II

Terracon appreciates the opportunity to provide this service to Schemmer Associates, Inc.

Please contact the undersigned at (701) 282-9633 if you have questions regarding this report.

Sincerely, Terracon Consultants, Inc.

Sean M. Gordon

Staff Scientist

Brandy L. Howard, PE(CO), CIH, CSP

Authorized Project Reviewer

Northern Crop Sciences Laboratory Roof Inspection | Fargo, North Dakota

Table of Contents

1.0 Project Overview

1.1 Project Objectives

1.2 Reliance

2.0 Survey Area Description

3.0 Field Activities

3.1 Visual Assessment

3.2 Physical Assessment

3.3 Sample Collection

3.4 Sample Analysis

4.0 Findings and Recommendations

5.0 Limitations/General Comments

APPENDICES

Appendix A Table 1 - Asbestos Survey Sample Summary

Appendix B Exhibit 1 – Sample Locations

Appendix C Photo Log

Appendix D Laboratory Analytical Report and Chain of Custody

Appendix E Licenses and Certifications

Northern Crop Sciences Laboratory | Fargo, North Dakota

Facilities | Environmental | Geotechnical | Materials 1

1.0 Project Overview

Terracon Consultants, Inc. (Terracon) conducted a limited asbestos survey of the Northern

Crop Sciences Laboratory located at 1307 18th Street North in Fargo, Cass County, North

Dakota. The survey was limited to the interior and exterior roofing material at the above-listed site (survey area).

The asbestos inspection was conducted on March 26, 2025, by a State of North Dakota certified inspector in accordance with Terracon Proposal No. PM1257003 dated January

16, 2025.

1.1 Project Objectives

We understand the asbestos survey was requested in support of a roof replacement at the

Northern Crop Sciences Laboratory, and to satisfy requirements of the United States

Environmental Protection Agency (USEPA) 40 Code of Federal Regulations (CFR) Part 61, Subpart M, the National Emission Standards for Hazardous Air Pollutants (NESHAP). The asbestos NESHAP requires potentially regulated asbestos-containing building materials be identified, classified, and quantified prior to planned disturbances.

Terracon also understands the intent of the assessment is to assist the client with communicating the presence, location, and quantity of asbestos-containing material (ACM) to employees, vendors, and contractors working in the building to meet the requirements of the Occupational Safety and Health Administration (OSHA) communication of hazard requirements found at 29 CFR 1926.1101. The purpose of this survey was to sample and identify suspect ACM and provide information regarding the identity, location, condition, and approximate quantities of ACM in the areas surveyed.

1.2 Reliance

This report is for the exclusive use of Schemmer Associates, Inc., Client, for the project being discussed. Reliance by any other party on this report is prohibited without written authorization of Terracon and Client. Reliance on this report by Client and all authorized parties will be subject to the terms, conditions, and limitations stated in Terracon’s

Proposal No. PM1257003, this report, and the Agreement for Services dated January 16, 2025. The limitation of liability defined in the Agreement for Services is the aggregate limit of Terracon’s liability to Client.

Facilities | Environmental | Geotechnical | Materials 2

2.0 Survey Area Description

The survey area was operational at the time of the survey. The survey area was limited to the interior roofing material inside the building and the exterior roof. The interior roof consisted of layered gray panel insulation. The exterior roof contained gray and light gray joint caulking, black roof flashing, and roof felt overlain by roof asphalt shingles.

3.0 Field Activities

The survey was conducted on March 26, 2025, by Mr. Sean M. Gordon, who is a State of

North Dakota Department of Environmental Quality (NDDEQ) certified asbestos inspector. A copy of Mr. Gordon’s inspector accreditation is attached in Appendix E. The survey was conducted in accordance with the sample collection protocols established in 40 CFR 736.86

– Sampling.

A summary of the inspection results is included in Section 4.0 and in table presented in

Appendix A.

3.1 Visual Assessment

Survey activities were initiated with visual observations of the survey area to identify homogenous areas (HAs) of suspect ACM. The survey was limited to the interior of the building scheduled for renovation, as described in Section 2.0, above. An HA consists of building materials that appear similar throughout in terms of color, texture and, if known, date of application. Building materials identified as glass, wood, or metal were not considered suspect ACM.

Although reasonable effort was made to survey accessible suspect materials, additional suspect but unsampled materials could be located in concealed areas or areas where investigation was not feasible without significant damage. At the time of the survey, the project area was being utilized for regular operations. As a result, our services were limited.

3.2 Physical Assessment

A physical assessment of the HAs of suspect ACM was conducted to assess the friability and condition of the material. A friable material is defined by the USEPA as a material that can be crumbled, pulverized, or reduced to powder by hand pressure when dry. Friability was assessed by physically touching suspect materials.

Terracon also assessed the condition of each material and placed suspect ACMs into one of three categories based upon the inspection: “significantly damaged”, “damaged”, or “good”.

Facilities | Environmental | Geotechnical | Materials 3

3.3 Sample Collection

Based on results of the visual observation, bulk samples of suspect ACM were collected in accordance with the sampling protocols outlined in 40 CFR 763.86 – Sampling. Samples of suspect materials were collected from randomly selected locations in each HA. Samples were placed in sealable containers and labeled with unique sample numbers using an indelible marker.

The selection of sample locations and frequency of sampling were based on Terracon’s observations and the assumption that like materials in the same area are homogeneous in content. Terracon collected 17 bulk samples from 6 HAs from the survey area. A summary of suspect ACM sampled during the survey is included as Table 1 in Appendix A and is included as part of the chain of custody (COC) presented in Appendix D. Exhibits showing the suspect ACM sampling locations are included in Appendix B.

3.4 Sample Analysis

Bulk samples collected on March 26, 2025, were submitted under chain of custody to EMSL

Analytical, Inc. (EMSL) in Cinnaminson, New Jersey for analysis by polarized light microscopy (PLM) with dispersion staining techniques per USEPA’s Method for the

Determination of Asbestos in Bulk Building Materials (600/R-93/116).

4.0 Findings and Recommendations

The analytical laboratory, through PLM analysis, did not identify ACM in the bulk samples.

A summary of sampled suspect material is presented as Table 1 in Appendix A. Sample locations are presented in Appendix B. Photographs of sampled materials are provided in

Appendix C. Laboratory analytical report is provided in Appendix D.

5.0 Limitations/General Comments

This limited asbestos survey was conducted in a manner consistent with the level of care and skill ordinarily exercised by members of the profession currently practicing under similar conditions in the same locale. The results, findings, conclusions, and recommendations expressed in this report are based on conditions observed during our survey of the buildings. The information contained in this report is relevant to the date on which this survey was performed and should not be relied upon to represent conditions at a later date. This report has been prepared on behalf of and exclusively for use by Schemmer Associates, Inc. for specific application to their project as discussed.

This report is not a bidding document. Contractors or consultants reviewing this report

Facilities | Environmental | Geotechnical | Materials 4 must draw their own conclusions regarding further investigation or remediation deemed necessary. Terracon does not warrant the work of regulatory agencies, laboratories, or other third parties supplying information that may have been used in the preparation of this report. No warranty, express or implied, is made.

Appendix A

Table 1 - Asbestos Survey Sample Summary

A-1

Table 1 – Asbestos Inspection Sample Summary

See Appendix C for detailed analytical results and the sample sheets. Please refer to the attached Exhibit in Appendix B for the general locations of the ACMs and for additional notes.

Sample

No.

Material Description Sample Location

Laboratory

Results

NESHAP

Category1 Condition

1-AW5-1

Four layers of gray panel insulation

Yellow foam

Ceiling of northwest mechanical room

None detected

Not applicable

Good

Four layers of gray panel insulation

Yellow foam

None detected Good

1-AW5-2

Four layers of gray panel insulation

Yellow foam

Ceiling of northwest mechanical room

None detected

Not applicable

Good

Four layers of gray panel insulation

Yellow foam

None detected Good

1 Friable/Regulated Asbestos Containing Material (RACM; Category I nonfriable ACM: includes asbestos-containing packings, gaskets, resilient floor covering, and asphalt roofing products containing >1% asbestos; Category II nonfriable ACM: includes any material other than Category I nonfriable materials that contain more than 1% asbestos

A-2

Sample

No.

Material Description Sample Location

Laboratory

Results

NESHAP

Category1 Condition

2-CA6-4 Gray joint caulking Roof near door of northwest mechanical room None detected Not applicable Good

2-CA6-5 Gray joint caulking Roof near northeast corner None detected Not applicable Good

2-CA6-6 Gray joint caulking Middle of north roof None detected Not applicable Good

3-RF3-7 Roof asphalt shingle Roof near door of northwest mechanical room None detected Not applicable Good

3-RF3-8 Roof asphalt shingle Roof on south side of building between greenhouses None detected Not applicable Good

3-RF3-9 Roof asphalt shingle Northeast corner of roof None detected Not applicable Good

4-RF2-10 Roof felt Roof near door of northwest mechanical room None detected Not applicable Good

A-3

Material Description Sample Location

Laboratory

Results

NESHAP

Category1 Condition

4-RF2-11 Roof felt Roof on south side of building between greenhouses None detected

Not applicable Good

4-RF2-12 Roof felt Northeast corner of building None detected Not applicable Good

5-CA4-13 Light gray joint caulking East side of north building None detected Not applicable Good

5-CA4-14 Light gray joint caulking East side of north building None detected Not applicable Good

5-CA4-15 Light gray joint caulking East side of north building None detected Not applicable Good

6-RF4-16 Black roof flashing East side of northernmost section None detected Not applicable Good

6-RF4-17 Black roof flashing East side of northernmost section None detected Not applicable Good

A-4

Material Description Sample Location

Laboratory

Results

NESHAP

Category1 Condition

6-RF4-18 Black roof flashing East side of northernmost section None detected Not applicable Good

Appendix B

Exhibit 1 – Sample Locations

4, 7, 10

5, 8, 11

6, 9, 12

ExhibitSample Location Diagram terracon.com Reviewed By:

Drawn By:

Apr 2025

Date:

Project No.:

M1257003

EH

SMG

PH: 701-282-9633

USDA Greenhouse Roof 1703 18th Street North

Fargo, North Dakota 58102 860 9th Street NE, Unit K West Fargo, ND 58078

LEGEND

ASBESTOS SAMPLE LOCATION

Appendix C

Photo Log

Photolog – Asbestos Samples

Northern Crop ScLences /aborator\ | Fargo, North Dakota

Photos Taken March 26, 2025 | Terracon Report No. M1257003

Facilities | Environmental | Geotechnical | Materials 1

Photo #1 HA1: Grey roof insulation with yellow foam.

Photo #2 HA2: Gray joint caulking.

Photo #3 HA3: Asphalt shingle

Photo #4 HA4: Roof felt (under asphalt shingles)

Photo #5 HA5: Light gray joint caulking Photo #6 HA6: Black roof flashing

Appendix D

Laboratory Analytical Report and Chain of Custody

EMSL Analytical, Inc.

200 Route 130 North Cinnaminson, NJ 08077

Tel/Fax: (800) 220-3675 / (856) 786-5974 http://www.EMSL.com / cinnasblab@EMSL.com

042505753EMSL Order:

Customer ID: TCFN34

Customer PO: M1257003

Project ID:

Attention: Phone:Sean Gordon (701) 282-9633

Fax:Terracon Consultants, Inc.

Received Date:860 9th St. NE 03/27/2025 10:00 AM

Analysis Date:Unit K 04/01/2025

Collected Date:West Fargo, ND 58078 03/26/2025

Project: USDA Greenhouse Roof / 1307 18th Street N Fargo, ND 58102 / Northern Crop Sciences Laboratory Roof

Inspection / M1257003

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

1-AW5-1-Insulation

042505753-0001

None DetectedNon-fibrous (Other)100%Yellow

Non-Fibrous

Homogeneous

Ceiling of Northwest

Mechanical Room - 4

Layers of Grey Panel

Insulation - Yellow

Foam

1-AW5-1-Insulation 2

042505753-0001A

None DetectedNon-fibrous (Other)40%Cellulose60%Gray

Fibrous

Homogeneous

Ceiling of Northwest

Mechanical Room - 4

Layers of Grey Panel

Insulation - Yellow

Foam

1-AW5-2-Insulation

042505753-0002

None DetectedNon-fibrous (Other)100%Yellow

Non-Fibrous

Homogeneous

Ceiling of Northeast

Mechanical Room - 4

Layers of Grey Panel

Insulation - Yellow

Foam

1-AW5-2-Insulation 2

042505753-0002A

None DetectedNon-fibrous (Other)50%Cellulose50%Gray

Non-Fibrous

Homogeneous

Ceiling of Northeast

Mechanical Room - 4

Layers of Grey Panel

Insulation - Yellow

Foam

2-CA6-4

042505753-0003

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

Roof Near Door of

Northwest Mechanical

Room - Grey Joint

Caulking

2-CA6-5

042505753-0004

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

Roof Near Northeast

Corner - Grey Joint

Caulking

2-CA6-6

042505753-0005

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

Middle of North Roof -

Grey Joint Caulking

3-RF3-7

042505753-0006

None DetectedNon-fibrous (Other)85%Glass15%Black

Fibrous

Homogeneous

Roof Near Door of

Northwest Mechanical

Room - Roof Asphalt

Shingle

3-RF3-8

042505753-0007

None DetectedNon-fibrous (Other)85%Glass15%Black

Fibrous

Homogeneous

Roof on South Side of

Building Between

Greenhouses - Roof

Asphalt Shingle

3-RF3-9

042505753-0008

None DetectedNon-fibrous (Other)85%Glass15%Black

Fibrous

Homogeneous

Northeast Corner of

Roof - Roof Asphalt

Shingle

4-RF2-10

042505753-0009

None DetectedNon-fibrous (Other)85%Glass15%Black

Fibrous

Homogeneous

Roof Near Door of

Northwest Mechanical

Room - Roof Felt

4-RF2-11

042505753-0010

None DetectedNon-fibrous (Other)75%Cellulose25%Black

Fibrous

Homogeneous

Roof on South Side of

Building Between

Greenhouses - Roof

Felt

Initial report from: 04/02/2025 08:27:02

Page 1 of 2ASB_PLM_0008_0002 - 2.31 Printed: 4/2/2025 8:27 AM

EMSL Analytical, Inc.

200 Route 130 North Cinnaminson, NJ 08077

Tel/Fax: (800) 220-3675 / (856) 786-5974 http://www.EMSL.com / cinnasblab@EMSL.com

042505753EMSL Order:

Customer ID: TCFN34

Customer PO: M1257003

Project ID:

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

4-RF2-12

042505753-0011

None DetectedNon-fibrous (Other)75%Cellulose

Glass

10%

15%

Black

Fibrous

Homogeneous

Northeast Corner of

Building - Roof Felt

5-CA4-13

042505753-0012

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

East Side of North

Building - Light Grey

Joint Caulking

5-CA4-14

042505753-0013

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

East Side of North

Building - Light Grey

Joint Caulking

5-CA4-15

042505753-0014

None DetectedNon-fibrous (Other)100%Gray

Non-Fibrous

Homogeneous

East Side of North

Building - Light Grey

Joint Caulking

6-RF4-16

042505753-0015

None DetectedNon-fibrous (Other)100%Black

Non-Fibrous

Homogeneous

East Side of

Northernmost Section

- Black Roof Flashing

6-RF4-17

042505753-0016

None DetectedNon-fibrous (Other)100%Black

Non-Fibrous

Homogeneous

East Side of

Northernmost Section

- Black Roof Flashing

6-RF4-18

042505753-0017

None DetectedNon-fibrous (Other)100%Black

Non-Fibrous

Homogeneous

East Side of

Northernmost Section

- Black Roof Flashing

Analyst(s)

Amiri Lewis (7)

Steven Wells (12)

Samantha Rundstrom, Laboratory Manager 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. Cinnaminson, NJ NVLAP Lab Code 101048-0, AIHA LAP, LLC-IHLAP Lab 100194, PA ID# 68-00367, LA #04127

Initial report from: 04/02/2025 08:27:02

Page 2 of 2ASB_PLM_0008_0002 - 2.31 Printed: 4/2/2025 8:27 AM

Appendix E: Regulatory Overview

ASBESTOS REGULATORY OVERVIEW

The North Dakota Asbestos-Waste Management Program under the North Dakota

Department of Environmental Quality (NDDEQ) enforces the asbestos NESHAP as adopted by reference in North Dakota Administrative Code Chapter 74:36:08. The owner or operator must provide NDDEQ with written notification at least 10 working days prior to the demolition of any structure, even if asbestos is not present. The owner or operator must provide the NDDEQ with written notification of planned removal activities at least 10 working days prior to the commencement of asbestos abatement activities that include more than 160 square feet or 260 linear feet of regulated ACM (RACM) removal.

The asbestos NESHAP (40 CFR Part 61, Subpart M) regulates asbestos fiber emissions and asbestos waste disposal practices. The asbestos NESHAP regulation also requires the identification and classification of existing ACM according to friability prior to demolition or renovation activity. Friable ACM is a material containing more than 1% asbestos that, when dry, can be crumbled, pulverized, or reduced to powder by hand pressure. All friable ACM is considered RACM.

The asbestos NESHAP regulation classifies ACM as RACM, Category I nonfriable ACM, or

Category II nonfriable ACM. RACM includes all friable ACM, along with Category I and

Category II nonfriable ACMs that have become friable; will be or have been subjected to sanding, grinding, cutting, or abrading; or that have a high probability of becoming or have become crumbled, pulverized, or reduced to powder in the course of renovation or demolition activity. Category I nonfriable ACMs are exclusively asbestos-containing packings, gaskets, resilient floor coverings, resilient floor covering mastics, and asphalt roofing products that contain more than 1% asbestos. Category II nonfriable ACMs are all other nonfriable materials other than Category I nonfriable ACMs that contain more than

1% asbestos. Category II nonfriable ACMs generally include but are not limited to cementitious material such as cement pipes, cement siding, cement panels, glazing, mortar, and grouts.

The OSHA asbestos standard for construction (29 CFR 1926.1101) regulates workplace exposure to asbestos. The OSHA standard requires that employee exposure to airborne asbestos fibers be maintained below the permissible exposure limits (PELs) of 0.1 asbestos fiber per cubic centimeter of air (0.1 f/cc) as an 8-hour time-weighted average (TWA) or 1.0 f/cc as a 30-minute excursion limit. The OSHA standard classifies construction and maintenance activities that could disturb ACM and specifies work practices and precautions that employers must follow when engaging in each class of regulated work.

Appendix F: Licenses And Certifications

M1257003 - SAMPLE LOCATION DIAGRAM