
GBA Audio Education Series – Briefing and Being Briefed
Episode Summary
In this episode, hosts Tiffany Vorhies and Ryan White examine the importance behind daily field reports and regular briefings. It begins with a dramatization between field techs Tyler and Charlie. Upon returning to work, Tyler catches up with Charlie who reveals that covering his sites in the interim was challenging. We discover that Tyler failed to provide Charlie with adequate field notes or a proper briefing, hampering Charlie’s ability to carry out his tasks. But daily field reports offer geotechnical teams with other valuable benefits, which Tiffany and Ryan say help safeguard against unforeseen events and keep clients satisfied.
Series Summary
Tiffany Vorhies and Ryan White recently uncovered a treasure trove of valuable content, GBA's outstanding audio-education series. In order to make this more accessible, they turned these into a podcast series. This series was originally available as downloadable audio files, designed for one-on-one listening by field representatives, or as material to spur discussion during brownbag seminars or other informal training sessions. Like other GBA audio education programs, Fundamentals of Field Representation uses dramatization to make its points. The roles are played by professional actors, supplemented by sound effects. In each episode, Tiffany and Ryan play the original audio and follow up with a discussion, including their own personal lessons learned from many years of experience in the industry as both field reps and technical leaders.
GBA Resources
GBA Audio Education: Fundamentals of Field Representation - Effective Reporting
Model Daily Field Report for Geotechnical Field Observation
Model Reporting Forms for Geoenvironmental Field Observation
Subscribe
Subscribe to the GBA Podcast https://www.gbapodcast.com/subscribe
This episode was produced by the following GBA Members:
Tiffany Vorhies, NACE CIP-2 – Vice President/SME
Ryan White, PE, GE – Principal Geotechnical Engineer/PBS Engineering and Environmental Inc.
Jennifer Sanborn, PE – Project Director/Sanborn, Head & Associates, Inc.
Elizabeth Brown, PE - Geotechnical Services Manger/Atlas Technical Consultants
Diego Torres - Senior Writer/Atlas Technical Consultants
Jul 7, 2023
31 min

GBA Audio Education Series – Safety
Episode Summary
This episode discusses the big picture challenges of handling safety concerns on a job site, and how the field engineer’s response is not “one size fits all” for all potential safety concerns. For example, the way a field engineer should handle a life threatening situation may be different than how they handle less severe safety concerns during contractor activities. The episode gets into the importance of documentation when addressing safety concerns, and potential liability concerns that could arise from reacting in certain ways. Lastly, the episode highlights a specific action that should be taken in almost every case where a field engineer is facing a safety concern at a job site.
Series Summary
Tiffany Vorhies and Ryan White recently uncovered a treasure trove of valuable content, GBA's outstanding audio-education series. In order to make this more accessible, they turned these into a podcast series. This series was originally available as downloadable audio files, designed for one-on-one listening by field representatives, or as material to spur discussion during brownbag seminars or other informal training sessions. Like other GBA audio education programs, Fundamentals of Field Representation uses dramatization to make its points. The roles are played by professional actors, supplemented by sound effects. In each episode, Tiffany and Ryan play the original audio and follow up with a discussion, including their own personal lessons learned from many years of experience in the industry as both field reps and technical leaders.
GBA Resources
Safety and Your Geoprofessional Practice: The Whys and How-tos of Establishing a Safety Program Best Practices Monograph
This monograph provides important information essential to the development of an effective safety program. Part of this information focuses on the direct and indirect costs of an inadequate safety program, ranging from higher insurance premiums and legal exposures to lost business and lower productivity. Also covered: Some of the key safety metrics being use; benchmarks firms can use as targeted objectives; and an array of techniques for developing a “robust, proactive safety program that seeks to eliminate hazards and prevent injuries.”
Employee Pocket Safety Card
“Safety Is Priority One” – That’s the key message of an employee-pocket safety card developed by the GBA Safety Committee for use by its member firms. The front of the card poses a series of brief instructions and questions employees should address before moving forward with a task. The card’s reverse side includes prompts for which hazards are present, including contact, exposure, fall, caught/crushed, ergonomics, and energy source. GBA members can print the card in its GBA PDF format, using the GBA logo.
Get Ready for Summer! Working Safely Outdoors in Warm Climates
Working outdoors when it’s hot can create an array of safety challenges that firms and individuals need to be aware of and plan for. Some of the key issues include sun and UV-ray exposure, heat, Lyme Disease and other tick-borne diseases, West Nile Virus, and poison ivy and related plants. Each of these issues is expanded upon in this GBA Best Practices monograph, developed by GBA’s Construction-Materials Engineering and Testing Business Committee.
Model Daily Field Report for Geotechnical Field Observation
This 20-page guide provides innovative model daily field report (MDFR) forms that firms can tailor to meet their own individual needs, along with suggestions for developing your own materials.
Model Reporting Forms for Geoenvironmental Field Observation
This booklet provides sample reporting forms for geoenvironmental field observation and suggestions for preparing similar forms for your own firm. Includes a model daily field report (DFR) form.
Subscribe
Subscribe to the GBA Podcast https://www.gbapodcast.com/subscribe
This episode was produced by the following GBA Members:
Tiffany Vorhies, NACE CIP-2 – Vice President/SME
Ryan White, PE, GE – Principal Geotechnical Engineer/PBS Engineering and Environmental Inc.
Jennifer Sanborn, PE – Vice President/Sanborn, Head & Associates, Inc.
Elizabeth Brown, PE - Geotechnical Services Manger/Atlas Technical Consultants
May 30, 2023
34 min

GBA Case History Series – Case History #93 - $150M Near Miss
Summary
The GBA-Member Firm’s CEO and the developer’s CEO had worked together successfully on numerous projects for more than 15 years, establishing a friendship based on mutual respect and trust. This project was the developer’s most ambitious to date, by virtue of its size, local prominence, and complexity. Among other things, the project plan called for four levels of parking beneath 2½ city blocks and adjoining streets. As the excavation was nearing completion, three soldier piles in the northeast corner of the excavation plunged downward between 12 and 18 inches and rotated toward the basement excavation. If the issue wasn't resolved quickly not only would the safety of the public be at risk, but so would the relationship.
Our Hosts:
Elizabeth Brown, PE - Geotechnical Services Manger/Atlas Technical Consultants
Elizabeth is the Geotechnical Services Manager at Atlas Technical Consultants in Boise, Idaho. Elizabeth has performed and/or assisted with numerous geotechnical investigations throughout Idaho, Oregon, Washington, and Wyoming managing projects, providing geotechnical design, project quality control, cost and value engineering, and evaluating geotechnical constructability issues.
Ryan White, PE, GE – Principal Geotechnical Engineer/PBS Engineering and Environmental Inc.
Ryan is the Principal Geotechnical engineer and Geotechnical Engineering Group manager at PBS Engineering and Environmental Inc. Headquartered in Portland, Oregon, Ryan regularly manages projects throughout the Pacific Northwest and has worked on projects across the US. Ryan's experience includes commercial development, transportation projects, design for low- to mid-rise buildings, bridge foundations, roads, landslide evaluation and stabilization, retaining wall design and construction, seismic evaluations and solar energy and land development.
Links
Soldier pile and lagging shoring
Tiebacks
Lessons Learned:
Use root-cause analysis to identify the cause of a condition and never stop working the problem.
Practice financial fortitude when there is a problem to build good will with the client and identify the real cause of a problem.
Keep your emotions in check when dealing with a stressful situation.
Consider the risks and consequences of your actions.
Develop and maintain strong client-professional relationships.
Calls-to-action:
Download Case History #109: https://www.geoprofessional.org/product/gba-case-history-no-93/
Visit the following link to access all of GBA’s Case Histories: https://www.geoprofessional.org/gba-case-histories/
An account is required to download the individual Case Histories, which are free for GBA Member Firms.
Visit the GBA Website at https://www.geoprofessional.org for other training resources and reference materials and/or to become a member.
Visit https://www.gbapodcast.com for future Podcast Episodes
Contact us at [email protected] with any podcast-related questions or comments
Subscribe
Subscribe to the GBA Podcast https://www.gbapodcast.com/subscribe
This episode was produced by the following GBA Members:
Ryan White, PE, GE – Principal Geotechnical Engineer/PBS Engineering and Environmental Inc.
Elizabeth Brown, PE - Geotechnical Services Manger/Atlas Technical Consultants
Mar 29, 2023
18 min

GBA Audio Education Series – Personal Diplomacy
Summary
Tiffany Vorhies and Ryan White recently uncovered a treasure trove of valuable content, GBA's outstanding audio-education series. In order to make this more accessible, they turned these into a podcast series. This series was originally available as downloadable audio files, designed for one-on-one listening by field representatives, or as material to spur discussion during brownbag seminars or other informal training sessions. Like other GBA audio education programs, Fundamentals of Field Representation uses dramatization to make its points. The roles are played by professional actors, supplemented by sound effects. In each episode, Tiffany and Ryan play the original audio and follow up with a discussion, including their own personal lessons learned from many years of experience in the industry as both field reps and technical leaders.
GBA Resources
GBA Audio Education: Fundamentals of Field Representation - Effective Reporting
Case History No. 33
The Member Firm performed the geotech study with recommendations for foundation design and CoMET services for a major school project. CoMET services included earthwork observation and testing during filling operations of the grading constructor. The Member Firm assigned a newly employed field representative to perform construction observation and testing. Five years after construction was complete, investigation of settlement revealed the firm’s field representative had accepted a bribe from the constructor to falsify compaction results.
GBA Best Practices: Avoiding Allegations of Corruption
As "Avoiding Allegations of Corruption" points out, "It's not enough to maintain what you believe is your own and your firm's professional integrity.
Ethics and Professional Conduct Training
The Ethics and Professional Conduct Training materials have been developed for GBA member firms to perform ethics training within their firms. The Powerpoint presentation consists of 63 total slides
Model Daily Field Report for Geotechnical Field Observation
This 20-page guide provides innovative model daily field report (MDFR) forms that firms can tailor to meet their own individual needs, along with suggestions for developing your own materials.
Model Reporting Forms for Geoenvironmental Field Observation
This booklet provides sample reporting forms for geoenvironmental field observation and suggestions for preparing similar forms for your own firm. Includes a model daily field report (DFR) form.
Subscribe
Subscribe to the GBA Podcast https://www.gbapodcast.com/subscribe
This episode was produced by the following GBA Members:
Tiffany Vorhies, NACE CIP-2 – Vice President/SME
Ryan White, PE, GE – Principal Geotechnical Engineer/PBS Engineering and Environmental Inc.
Jennifer Sanborn, PE – Vice President/Sanborn, Head & Associates, Inc.
Elizabeth Brown, PE - Geotechnical Services Manager/Atlas Technical Consultants
Jan 25, 2023
42 min

GBA Case History Series – Case History #109 - We Were Hacked
Summary
Member Firm with multiple offices became the victim of foreign hacking enterprise. It started when an employee of the firm innocently opened an email from an unsuspected contact and clicked on a link allowing the hackers to access the Member Firm’s management systems. Unbeknownst to anyone, the infiltrators spent months learning about the Member Firm’s operations, information storage and data. After obtaining and securing the information that they were after, the hackers locked out the Member Firm keeping them from accessing their IT systems, including emails and project files. They promptly demanded seven-figure sum of money for the key to their lock.
Our Host
Jennifer Sanborn, PE – Vice President/Sanborn, Head & Associates, Inc. (Link to Profile)
Jenn’s work in environmental site characterization and remediation has taken her to the leading edge of our practice in vapor intrusion and emerging contaminants. Jenn works on a number of projects under the USEPA Brownfields program, conducting environmental assessments and preparing regulatory submittals. She has extensive field experience and familiarity with environmental regulations across several states. At Sanborn Head, Jenn helps with Sanborn Head’s business practices, reviewing contracts and educating staff about risk management practices. As a supervisor, Jenn also enjoys the opportunity to mentor staff and guide their career development. She is also a member of Sanborn Head’s Board of Directors.
Our Guest
Doug Barbosa – Director of Information Technology /Sanborn, Head & Associates, Inc. (Link to Profile)
Doug is responsible for building and maintaining Sanborn Head’s technology infrastructure. In this capacity he manages their IT team and oversees the planning and development of the information systems and data processes so that everyone at Sanborn Head has the tools and solutions needed to service their clients. Doug is an expert in the area of cybersecurity and takes great pride in his efforts to protect Sanborn Head’s and their clients’ data and ensure a smooth operational environment.
Lessons Learned
Purchase Cyber/Ransomware insurance
Replace old computers,update/upgrade security software and apps
Train staff on cyber security and anti-phishing protocols; test regularly
Bring in an outside cyber expert to evaluate your systems and get recommendations to address weak points
Leadership, employee and client resilience
Calls-to-action:
Download Case History #109: https://www.geoprofessional.org/product/gba-case-history-no-109/
Visit the following link to access all of GBA’s Case Histories: https://www.geoprofessional.org/gba-case-histories/
An account is required to download the individual Case Histories, which are free for GBA Member Firms.
Visit the GBA Website at https://www.geoprofessional.org for other training resources and reference materials and/or to become a member.
Visit https://www.gbapodcast.com for future Podcast Episodes
Contact us at [email protected] with any podcast-related questions or comments
Subscribe
Subscribe to the GBA Podcast https://www.gbapodcast.com/subscribe
This episode was produced by the following GBA Members:
Tiffany Vorhies, NACE CIP-2 – Vice President/SME
Ryan White, PE, GE – Principal Geotechnical Engineer/PBS Engineering and Environmental Inc.
Jennifer Sanborn, PE – Vice President/Sanborn, Head & Associates, Inc.
Elizabeth Brown, PE - Geotechnical Services Manager/Atlas Technical Consultants
Jan 10, 2023
18 min

GBA Audio Education Series – Effective Reporting
Episode Summary:
In Episode 3 of GBA's Audio Education Series, Tiffany Vorhies and Ryan White explore duty of care in field reporting. While covering the 6 aspects of effective field reporting, we are reminded of the essential information that should be included in reports. This is a good refresher for any experienced field staff as well as necessary information for newer geoprofessionals. In addition, our hosts discuss the common hiccups with surnames. Is it Ms., Miss, or Mrs?
Series Summary:
Tiffany Vorhies and Ryan White recently uncovered a treasure trove of valuable content, GBA's outstanding audio-education series. In order to make this more accessible, they turned these into a podcast series. This series was originally available as downloadable audio files, designed for one-on-one listening by field representatives, or as material to spur discussion during brownbag seminars or other informal training sessions. Like other GBA audio education programs, Fundamentals of Field Representation uses dramatization to make its points. The roles are played by professional actors, supplemented by sound effects. In each episode, Tiffany and Ryan play the original audio and follow up with a discussion, including their own personal lessons learned from many years of experience in the industry as both field reps and technical leaders.
GBA Resources
GBA Audio Education: Fundamentals of Field Representation - Effective Reporting
Lunch & Learn: Risky Language
GBA Best Practices: Avoiding Absolutes
GBA Best Practices: Taboo Words
Contract Reference Guide, Fourth Edition
eBrownbag Webinar – Dirty Words click here to get a discount code for free access to the online streaming version of episodes 1-10
Model Daily Field Report for Geotechnical Field Observation
Model Reporting Forms for Geoenvironmental Field Observation
Subscribe
Subscribe to the GBA Podcast https://www.gbapodcast.com/subscribe
This episode was produced by the following GBA Members:
Tiffany Vorhies, NACE CIP-2 – Vice President/SME
Ryan White, PE, GE – Principal Geotechnical Engineer/PBS Engineering and Environmental Inc.
Jennifer Sanborn, PE – Project Director/Sanborn, Head & Associates, Inc.
Elizabeth Brown, PE - Geotechnical Services Manager/Atlas Technical Consultants
Dec 27, 2022
51 min

GBA Audio Education Series – The Duty of Care
Episode Summary:
In Episode 2, Ryan and Tiffany take a closer look at what it means to be a professional and how that relates to the duty of care and standard of care at a job site. Centered around a GBA Audio Education module, this episode provides practical examples and commentary by Ryan and Tiffany on how they’ve seen these concepts play out in their experience as engineering professionals. Learn about these important legal terms in a fun and conversational way!
Series Summary:
Tiffany Vorhies and Ryan White recently uncovered a treasure trove of valuable content, GBA's outstanding audio-education series. In order to make this more accessible, they turned these into a podcast series. This series was originally available as downloadable audio files, designed for one-on-one listening by field representatives, or as material to spur discussion during brownbag seminars or other informal training sessions. Like other GBA audio education programs, Fundamentals of Field Representation uses dramatization to make its points. The roles are played by professional actors, supplemented by sound effects. In each episode, Tiffany and Ryan play the original audio and follow up with a discussion, including their own personal lessons learned from many years of experience in the industry as both field reps and technical leaders.
Resources
GBA Audio Education: Fundamentals of Field Representation - The Duty of Care
Lunch & Learn: Risky Language
GBA Best Practices: Avoiding Absolutes
GBA Best Practices: Taboo Words
Contract Reference Guide, Fourth Edition
eBrownbag Webinar – Dirty Words click here to get a discount code for free access to the online streaming version of episodes 1-10
What does walking steel mean?
Guys eating lunch on a steel beam suspended in the air
Model Daily Field Report for Geotechnical Field Observation
Model Reporting Forms for Geoenvironmental Field Observation
Subscribe
Subscribe to the GBA Podcast https://www.gbapodcast.com/subscribe
This episode was produced by the following GBA Members:
Tiffany Vorhies, NACE CIP-2 – Vice President/SME
Ryan White, PE, GE – Principal Geotechnical Engineer/PBS Engineering and Environmental Inc.
Jennifer Sanborn, PE – Project Director/Sanborn, Head & Associates, Inc.
Elizabeth Brown, PE - Geotechnical Services Manager/Atlas Technical Consultants
Apr 4, 2022
35 min

GBA Audio Education Series – Field Representatives and the Law
Episode Summary:
In Episode 1, Ryan and Tiffany discuss the importance of field representatives knowing the seriousness and risks of the work they perform. This episode provides a real world example about a casual comment made while onsite about trench safety that turned into a legal case. Ryan and Tiffany talk about the relationship between contractors and field representatives and how these relationships can affect decisions made while on project sites. Tune in to hear more about how field representatives are not immune to the litigation that can occur on projects.
Series Summary:
Tiffany Vorhies and Ryan White recently uncovered a treasure trove of valuable content, GBA's outstanding audio-education series. In order to make this more accessible, they turned these into a podcast series. This series was originally available as downloadable audio files, designed for one-on-one listening by field representatives, or as material to spur discussion during brownbag seminars or other informal training sessions. Like other GBA audio education programs, Fundamentals of Field Representation uses dramatization to make its points. The roles are played by professional actors, supplemented by sound effects. In each episode, Tiffany and Ryan play the original audio and follow up with a discussion, including their own personal lessons learned from many years of experience in the industry as both field reps and technical leaders.
GBA Resources
GBA Audio Education: Fundamentals of Field Representation - Field Representives and the Law
Lunch & Learn: Risky Language
GBA Best Practices: Avoiding Absolutes
GBA Best Practices: Taboo Words
Contract Reference Guide, Fourth Edition
eBrownbag Webinar – Dirty Words click here to get a discount code for free access to the online streaming version of episodes 1-10
Model Daily Field Report for Geotechnical Field Observation
Model Reporting Forms for Geoenvironmental Field Observation
Subscribe
Subscribe to the GBA Podcast https://www.gbapodcast.com/subscribe
This episode was produced by the following GBA Members:
Tiffany Vorhies, NACE CIP-2 – Vice President/SME
Ryan White, PE, GE – Principal Geotechnical Engineer/PBS Engineering and Environmental Inc.
Jennifer Sanborn, PE – Project Director/Sanborn, Head & Associates, Inc.
Elizabeth Brown, PE - Geotechnical Services Manager/Atlas Technical Consultants
Apr 4, 2022
33 min

GBA Diversity, Equity, and Inclusion Series – Episode #3 – Allies in Diversity, Equity, and Inclusion
Summary
In this episode of the DEI series, we will be discussing allies in diversity, equity, and inclusions. Allies can be essential to drive systemic improvements to workplace policies, practices, and culture. But what does it mean to be an ally? How can allies impact the recruitment process? What effect does allyship have on the retention of employees? And what can we do to create more allies?
Our Guest
Charlie Head, PE, PG Founding Principal / Sanborn, Head & Associates, Inc. [Link to Profile]
Charlie is a co-founder of Sanborn Head. He serves as the Chair of the company’s board of directors and oversees the implementation of the firm’s strategic plan.
Charlie actively steers initiatives related to the expansion of the firm’s services and markets. Charlie remains active in Sanborn Head’s professional practice, with particular emphasis on environmental assessment and remediation, including due diligence for clients globally. Charlie received his bachelor’s degree in geology from St. Lawrence University, a bachelor’s degree in civil engineering from the University of New Hampshire, and a master’s degree in civil and groundwater engineering from Colorado State University.
For Charlie, the real thrill of working at Sanborn Head is the creative problem solving and collaboration that fosters deep relationships—among staff and with clients. In his current role, Charlie enjoys focusing on the growth and sustainability of the company and helping to create opportunities for the next generation.
Charlie is a Professional Engineer in Arkansas, Georgia, Iowa, New Hampshire, Ohio, South Carolina, Tennessee, and Virginia; he is a Professional Geologist in New Hampshire.
Topics for discussion include:
What does it mean to be an ally?
Addressing the “leaky pipeline”.
How DEI can affect the recruitment process.
The effect an ally can have on the retention of employees.
Recruiting more allies.
Lessons Learned:
Understanding and evaluating our own biases.
DEI initiatives should go hand in hand with the recruitment process.
There’s no shame in making mistakes.
Calls-to-action:
GEOSTRATA: The Pipeline to Diversity and Inclusion in the Geoprofessions
Visit the GBA Website at https://www.geoprofessional.org for other training resources and reference materials and/or to become a member.
Visit https://www.gbapodcast.com for future Podcast Episodes
Contact us at [email protected] with any podcast-related questions or comments
Subscribe
Subscribe to the GBA Podcast https://www.gbapodcast.com/subscribe
This episode was produced by the following GBA Members:
Veronica DeFreitas, PE (host) – Geotechnical Department Manager/Universal Engineering Sciences
Ryan White, PE, GE – Principal Geotechnical Engineer/PBS Engineering and Environmental Inc.
Oct 20, 2021
56 min

GBA Diversity, Equity, and Inclusion Series – Episode #2 – Understanding Your Workforce
Summary
Diversity, Equity, and Inclusion (DEI) is a term often used in the workplace, but its meaning is often not well understood. People often mistakenly think that, with the creation of a diverse workplace, inclusion will automatically follow. Yet, inclusion should exist in tandem; it’s the climate where diversity thrives.
In this episode, we will be discussing the how other professions tackle diversity, equity, and inclusions within their organizations and the importance of understanding the needs of your workforce in relation to diversity and inclusion.
Our Guest
Cristina Bartolomei, Senior Program Manager, Diversity, Equity and Inclusion / FDA [Link to Profile]
Cristina Bartolomei is an accomplished strategist, speaker, and facilitator, with over a decade of experience in affirmative employment, EEO, and D&I. She attributes her passion for civil rights, social action, and equality to her upbringing in Puerto Rico, where she developed a lifelong passion for social activism. She has channeled this passion throughout her career. As a first-generation professional, she also believes in her role in making civil service accessible for all.
In March 2021, Cristina joined the FDA as the Diversity, Equity, and Inclusion (DEI) Senior Program Manager, tasked with managing short and long-term FDA-wide DEI initiatives and advising senior management on the development, enhancement, and implementation of projects, practices, and procedures to maintain an inclusive and effective diversity management program. Prior to joining the FDA, she was a Senior Specialist at the U.S. Department of Commerce, Office of Civil Rights, where she served as a key player in the development, implementation, and management of DEI programs and initiatives, which included the Inclusion is on US™ campaign and the First-Generation Professionals (FGP) Initiative – first-of-their-kind Federal initiatives promoting an organizational culture that respects, values, and engages all employees, regardless of their cultural and socio-economic backgrounds.
Topics for discussion include:
How to define Diversity, Equity and Inclusion
How to start formulation DEI initiative
The importance of understanding your workforce
Employee Satisfaction vs. Employee Engagement
Calls-to-action:
GEOSTRATA: The Pipeline to Diversity and Inclusion in the Geoprofessions
Visit the GBA Website at https://www.geoprofessional.org for other training resources and reference materials and/or to become a member.
Visit https://www.gbapodcast.com for future Podcast Episodes
Contact us at [email protected] with any podcast-related questions or comments
Subscribe
Subscribe to the GBA Podcast https://www.gbapodcast.com/subscribe
This episode was produced by the following GBA Members:
Veronica DeFreitas, PE (host) – Geotechnical Department Manager/Universal Engineering Sciences
Ryan White, PE, GE – Principal Geotechnical Engineer/PBS Engineering and Environmental Inc.
Oct 5, 2021
52 min
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