Health and Safety Consulting
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News & Events
Celebrating 30 Years: The Colden Corporation Journey
For three decades, Colden Corporation has partnered with organizations to deliver practical, innovative health, safety, and environmental solutions. Founded in Philadelphia in 1996 by David de Lalla, Greg Richey, and Chris Wesley, who remain actively involved in the firm today, what began as a small venture has grown into a trusted independent consulting partner supporting U.S. and international clients. Our progress over the past 30 years has been a testament to the hard work of our talented team and the meaningful connections we’ve established with clients across industries and geographies.
News & Events
Colden will be Exhibiting and Presenting at the 55th NSC New Hampshire Safety & Health Conference
Colden will be exhibiting and presenting at the National Safety Council’s 55th Annual New Hampshire Safety and Health Conference. The conference will begin on Tuesday, May 19th and conclude on Wednesday, May 20th at the Doubletree by Hilton in Manchester, NH. In attendance will be Senior Consultant, Susan Reynolds, MS, CIH, Project Consultant, Kyle Blakely and EHS Specialist, Julie Corriveau.
Susan Reynolds, MS, CIH will present “Sound Advice: Making Sense of Workplace Noise and Control Measures” on Tuesday, May 19th. The session will cover occupational noise exposure, health impacts, and hearing conservation fundamentals
Technical Resource
EHS Auditing Principles and Practices
Audits are important tools for effective environmental health and safety (EHS) management and continual improvement, including for compliance, EHS management system internal reviews and external certifications, and as part of corporate social responsibility, due diligence and supply chain management. The term audit is defined by the International Organization for Standardization (ISO) as a “systematic, independent and documented process for obtaining objective evidence and evaluating it to determine the extent to which the audit criteria are fulfilled.” [ISO 19011:2018]
News & Events
Join Colden at SESHA’s 48th Annual Symposium on Environmental, Safety and Health for High Technology
Colden will be exhibiting and presenting at the 48th Annual SESHA Symposium on Monday, April 13th and conclude on Thursday, April 16th at the Omni Tempe Hotel in Tempe, Arizona.
Susan Reynolds, MS, CIH will be presenting “Who’s on First? Making Sense of OSHA’s Multiemployer Workplace Policy” on Wednesday, April 15th at 8:30 – 9:15 AM.
Susan Reynolds, MS, CIH and Joshua M. Humlhanz, CSP will be presenting “Implementing Industrial Hygiene Sampling Plans – Lessons Learned” on Wednesday, April 15th at 11:45 AM – 12:30 PM.
Technical Resource
Colden’s Favorite OSHA Letters of Interpretation: Air Sampling for Total and Inhalable Size Fractions
Can you collect air samples using a method for the inhalable size fraction and use those results to demonstrate compliance with OSHA Permissible Exposure Limits for total size fractions?
Determining the appropriate aerosol particle size fraction(s) [1] to monitor is an important consideration in industrial hygiene exposure assessments.
News & Events
Join Colden at the 2026 AWMA/AIHA Conference
Join Colden at the 2026 Central New York Chapters of the Air and Waste Management Association (AWMA) and American Industrial Hygiene Association (AIHA) Joint Technical Conference on March 24th in Skaneateles, NY. Clint Smith, MS, CIH, CSP, Chizoba Onwubuche, MS, CSP and Joshua Pinals will be in attendance. Don’t miss this opportunity to engage with local industry professionals and enhance your knowledge.
Technical Resource
Colden’s Favorite OSHA Letters of Interpretation (LOI): Eyewash and Shower Requirements
In 2020, exposure to harmful substances or environments accounted for 4,830 cases of eye-related injury or illness cases that resulted in at least one day away from work.
Research estimates that eighty to eighty five percent of our perception, learning, cognition and activities are mediated through vision, (Politzer, 2008). A team of neuroscientists from MIT has found that the human brain can process entire images that the eye sees in as little as 13 milliseconds — the first evidence of such rapid processing speed. (Trafton, 2014). An eye injury can have serious implications for employees including their ability to drive, watch a game, or effectively communicate.
