Bloc Environmental

The Bloc Heads

The Leaders of Bloc - affectionately referred to as Bloc Heads - have over 75 years of combined experience in the industry.  Learn more about each of them here!


Check out what the Bloc Heads are talking about over at our Blog - Click here!

President & CEO

Colin K. Sheffield

Mr. Colin Sheffield is the President and Co-Founder of BLOC Environmental Solutions which provides Consulting & Field Services in several aspects of the Health, Safety, Environmental (HSE) & Process Safety Management (PSM) Industries.Colin leads BLOC's diverse leadership team whose goals include safe, reliable service to their clients, managed growth and providing a place of employment where talented people want to work.

With more than 20 yr.’s working in industry for Valero Energy Corporation as the Global Subject Matter Expert on environmental field issues, as well as being an Executive for one of the nation's largest Consulting and Field Services organizations, Mr. Sheffield is recognized in the refining, renewables and chemical industries as an established regulatory compliance leader.

Colin has presented to esteemed audiences across the country at several venues including the Texas Chemical Conference, The International Society of Automation (ISA), AFPM (formerly the NPRA) and LBT (now called 4C Conference). 

Colin and his wife have a beautiful family with one son and three daughters. He loves to spend time hunting on the family ranch, hanging out with his wife and kids and making people giggle.



    Managing Partner, Executive Vice President

    Bridgett Morales

    Ms. Morales is an Executive VP and Co-Founder of BLOC Environmental.  With over 20 years of field experience working in training and education and as a safety professional in the petrochemical industry she has proven herself able to use her compassion for people and enthusiasm for safety to help build a strong culture of safe workers within a company. 

    Bridgett formerly trained at the Houston Area Safety Council and directed the corporate safety program for over 620 employees, in five divisions of a company stretching across the continental United States and Canada.  She was responsible for directing and managing the Safety Department, training and continuous development of employees, maintaining safety training records, record keeping for OSHA compliance, case management, safety audits, and managing client relations. 

    During her tenure with this company, she oversaw the merging and reconciliation of two Safety Cultures as her company acquired a competitor in 2011. She worked closely with other departments such as HR, Sales, Risk Management, Operations and the CEO to maintain consistency for our clients and employees of quality, safety, and accountability. 

    With BLOC Environmental, Bridgett has built on her safety foundation and expanded her role to marketing, overseeing environmental monitoring programs, third party audits and client retention.

    As a recognized leader in her field, she presented at multiple conferences including: ISA, Texas Safety Association (TSA), South Texas Area Facilitators (STAF) and Texas Chemical Conference (TCC).

    Bridgett is motivated to work safely and efficiently so she can spend quality time with her husband and their five children and four grandchildren.  She loves to hang out with friends and her favorite thing to clean around the house is her DVR.



      Managing Partner, Executive Vice President

      Billy Schilling

      Mr. Schilling is a strong leader with a work ethic like few others.  With more than 10 years’ experience, Billy’s knowledge of process and regulations makes him a leader in the LDAR industry. He has served as both a Contractor and an Environmental Plant Contact, giving Billy a valuable viewpoint when it comes to quality and customer service.

      Billy specializes in Highlighting P&IDs, Third Party Audits, and Special Inventory Projects. As a Project Manager, Billy has successfully led hundreds of inventory tagging projects which makes him one of the nation’s leading experts in his field. He is motivated and passionate about providing quality service to our clients.

      Billy works closely with our workforce to ensure that proper field training is provided. He oversees all of our inventory projects and services our clients with respect and integrity.

      Billy is married to his high school sweetheart and is the father of four beautiful little girls.  When he is not at work for BLOC, these ladies demand all of his attention.


      Billy .png

      Managing Partner, Executive Vice President

      Ron M. Clark, P.E.

      Mr. Clark is a Professional/Principal Engineer and he has a B.S. in Civil Engineering and a B.S. in Environmental Engineering along with his Masters in Executive Business Administration.  He is an established leader in Operations, Maintenance, Environmental, Health, Safety, Security, and Process Safety Management, with extensive experience in Domestic U.S. and International/Global Management of the Petroleum, Petrochemical, Chemical, Pharmaceutical, Oil & Gas, Manufacturing, and Allied Industries. He has a demonstrated a positive & proven track record of assessing, developing, and implementing successful HSSE & PSM programs throughout these Industries.

      By delivering sustainable compliance, and continual improvement processes, and championing a behavioral based systems, Ron is dedicated to our workforce.  He has demonstrated abilities to hire and manage workers by first, identifying the knowledge, skills, and abilities and then assigning them proper roles and responsibilities based upon their KSAs.

      Ron is well known in our industry as an innovative trailblazer.  His experience as both a client and an executive with past organizations provide our company with a well-rounded and knowledgeable leader.  He works with our clients to ensure that their expectations are exceeded.

      When he's not in a business suit, he's in a wet suit.  Ron has surfed all around the world. He loves to have his toes in the sand. He also loves his beautiful daughter, who has her daddy wrapped around her little finger.


      • Professional/Principal Engineer (P.E.)
      • HUET Certification



        Pennsylvania State University

        • Environmental Engineering, 2002
        • Civil Engineering, 2002
        • Environmental Law, 2002
        • M.B.A., 2006

        Our Bloc Family