Leadership
Leading with vision and commitment
At Gosling Czubak, we believe leadership is not a single-person endeavor. It takes a team. A team of committed professionals, bound by a shared vision and common mission. A team chosen for their expertise, and focus on the common good of our company, its clients and communities. Together, our leadership team is guiding our efforts and ensuring a brighter future for us all.
Kevin D. Ringwelski, P.G., CPG
– President
Mr. Ringwelski joined Gosling Czubak in 1990 as a Geologist/Project Manager, was appointed Director of Environmental & Drilling Services in 1995 and was named President in 2022. Kevin has served on the Board of Directors and Management Committee since 2003.
For more than 30 years, Kevin provided environmental and hydrogeological expertise to clients, including environmental site assessments, soil and groundwater remedial investigations, groundwater fate and transport modelling, ground penetrating radar investigations, and regulatory compliance strategies.
Kevin is an active member in several professional organizations involved in the groundwater, energy, and food processing markets.
Kevin received his Bachelor of Science degree in Geology from Lake Superior State University in 1986 and is a Licensed Professional Geologist in Wisconsin and a Certified Professional Geologist through American Institute of Professional Geologists.
Mark J. Hurley, P.E.
– Director of Engineering Services
Mr. Hurley joined Gosling Czubak in April 2004 as an Engineer/Project Manager. In 2018 he was appointed Director of Engineering Services and has served on the Management Committee and Board of Directors since 2016 and 2018, respectively.
Mark has worked in the field of municipal and industrial engineering since 1995. Mark's technical experience includes the design, specification preparation, permitting and construction engineering of municipal and industrial wastewater treatment facilities and collection systems. As the former engineer for the City of Holland, Mark gained a wealth of practical knowledge in municipal water and sewer system design, maintenance, and rehabilitation, which he uses daily to the benefit of many area municipalities.
Mark is an active member of Michigan Water Environment Association and participates in Michigan Rural Water Association, American Water Works Association, and Michigan Food Processors Association.
Mark received a Bachelor of Science degree in Civil Engineering from Michigan Technological University in 1995 and a Master of Science degree in Environmental Engineering from Wayne State University in 1999. Mark is also a Licensed Professional Engineer in Michigan and Kentucky.
Craig J. Pullen, P.S.
– Director of Surveying Services
Mr. Pullen joined the company in February 2013 as Director of Surveying Services. Craig was elected to the Management Committee and Board of Directors in 2019 and 2022, respectively, holding the positions of Secretary (2019-2021) and Treasurer (2022 to present).
For more than 30 years Craig has provided surveying services in Michigan, including establishing GPS control networks and real-time GPS surveys, topographic surveys, construction staking, route surveys, alignment and right-of-way surveys, ground control surveys, survey mapping, construction layout, road and construction staking. Craig has extensive knowledge of Michigan state survey law.
Craig is an active member of the Michigan Society of Professional Surveyors and has served on various committees over the years.
Craig is a Licensed Professional Surveyor in MI, MN, WI, and NC, and received a Bachelor of Science degree in Surveying from Ferris State University in 1989.
Adam Biteman, P.G., CPG
– Director of Environmental & Drilling Services
Mr. Biteman joined Gosling Czubak in April 2004 as a Geologist/Project Manager. He was appointed Director of Environmental & Drilling Services in July 2022. Adam has served on the Management Committee since March 2020.
With more than 20 years specializing in multi-disciplinary projects, Adam is responsible for geotechnical and hydrogeological evaluations, environmental site assessments, soil and groundwater remediation, groundwater resource, and technical construction support projects. Adam is also responsible for directing daily drilling operations and providing technical analysis for projects company wide.
Adam received his Bachelor of Science degree in Geological Sciences from Michigan State University in 1999 and is a Licensed Professional Geologist in Alaska and a Certified Professional Geologist through American Institute of Professional Geologists.
Martin A. Graf, P.E.
– Director Construction Materials Testing Services
Mr. Graf joined Gosling Czubak in 2000 as an Engineer/Project Manager. Martin has served on the Management Committee since 2021 and was appointed Director of Construction Materials Testing Services in 2023.
Martin has worked in the field of municipal and transportation engineering since 1993. Martin’s technical experience includes designing municipal utility projects along with implementing MDOT specification projects. He has significant experience in road design, municipal utility design, construction inspection, construction oversight, and construction administration. He has knowledge of AASHTO and MDOT standards and procedures and has implemented them on many projects. Martin is an active member of the Michigan Society of Professional Engineers.
Martin received a Bachelor of Science degree in Civil Engineering from Michigan Technological University in 1993 and is a Licensed Professional Engineer in Michigan.