About Us

Michael Davy

Michael F. Davy, the third generation of the Davy family to lead the firm, joined Davy Engineering Co. in 1969. As a project engineer, project manager, and president of the firm, Mike is tasked with the organization and coordination of all projects. He is personally involved in hundreds of projects, including design of wastewater collection and treatment; water supply, treatment, storage, and distribution; surveying and land development; streets and storm sewers; and other civil and environmental engineering projects.

Mike graduated from the University of Wisconsin-Madison in 1969 with a BS degree in Civil Engineering. He has continued his education by attending courses and seminars offered by UW-Madison and professional organizations.

Mike is licensed as a Professional Engineer in Wisconsin, Minnesota, Hawaii, Illinois, Iowa, Michigan, and Nebraska; a Land Surveyor in Wisconsin and Minnesota; a Wastewater Treatment Plant Operator in Wisconsin; and is a Board-Certified Environmental Engineer by the American Academy of Environmental Engineers.

Mark Davy

Mark S. Davy joined Davy Engineering Co. in 1994 after graduating from the University of Wisconsin-Madison with a degree in Civil and Environmental Engineering. Mark has broad experience in general civil engineering projects and specialized experience in public financing, design and construction management of municipal infrastructure projects such as water distribution, sewer collection and wastewater treatment. He is licensed as Professional Engineer in Wisconsin, Minnesota and Iowa.

Julie Klimek

Bridget Chadwick

Bridget Chadwick joined Davy Engineering & Laboratories in 2014 as the Office Manager. She came to Davy with over 15 years of experience in Accounting and Human Resources acquired from the construction and medical industries. Bridget is dedicated to putting the right individuals on our team to make us more successful. Her area of expertise is improving processes to make the company more efficient by saving time and costs. Ms. Chadwick has taken many professional courses over the years; however, she is most proud of her military service in the United States Air Force where she truly learned the meaning of “teamwork”.

Tim Holzer

Tim joined the company in 2001. He represents both Davy Engineering Company and Davy Laboratories as a Sales and Marketing Representative. He assists with client relations, researches project financing options, produces statements of qualifications and other marketing-related materials and meets with elected officials and municipal staff to inform them of the company’s capabilities.

In the Laboratories division he assists with customer service, takes sample kit orders, prepares proposals, prepares sampling schedules and assists with the scheduling of future and on-going sample kit shipments.

Tim earned a Bachelor of Science degree from the University of Wisconsin-Stevens Point and maintains memberships with Wisconsin Rural Water Association (WRWA), Minnesota Rural Water Association (MRWA), Wisconsin Wastewater Operators Association (WWOA), Minnesota Wastewater Operators Association (MWOA) and Wisconsin section of American Waterworks Association (AWWA).

Julie Klimek

Julie Klimek works at Davy Laboratories as the Quality Assurance-Quality Control (QA/QC) Coordinator. Previously, she was the Supervisor of the Inorganic Metals Department. She has over 20 years of experience in the field of metals chemistry including sample preparation and analysis. As QA/QC Coordinator, she reviews all aspects of quality control associated with laboratory analyses. She verifies analytical data and rejects data that does not meet the defined criteria in the analytical method. In addition to her QA/QC duties, Julie provides support to the safety officer for Davy Laboratories regarding safe laboratory practices and chemical safety.

Julie earned her high school degree at Arcadia High School. She has also attended a number of training programs offered by various instrument manufacturers in support of the instruments used by the Metals Department.

Mark Harris

Mark Harris works at Davy Laboratories as a laboratory technician in the Inorganic Wet Chemistry Department. He has over 15 years of experience beginning in the field of inorganic wet chemistry, along with involvement in field sampling. Previously, Mark spent the majority of his time in Shipping and Receiving.

He completed a two-year degree in business management from Western Technical College in 2011.

Mark is very dedicated and has been notable in his attention to detail, laboratory analysis skills and knowledge, dedication, and experience. Mark is the lead for our Biological Oxygen Demand (BOD) crew. He is also responsible for the maintenance of field sampling equipment, both within the laboratory and for our clients.

Steve Hults

Steve Hults works at Davy Laboratories as the Supervisor of the Metals Department. He has over 20 years of experience beginning with the Wet Chemistry Department, where he worked for ten years. After moving to the Metals Department, Steve became proficient in Flame, Furnace, and ICP-OES analysis and eventually became the Supervisor of the Metals Department after ten years of experience in the department. In addition, Steve also holds Small Water System (OTM/NN) Operator Certification with The Wisconsin Department of Natural Resources.

Steve earned his BS degree from the University of Wisconsin-La Crosse with a major in biology and an emphasis in river studies in 1994.

Stephanie Tollefson

Stephanie Tollefson works at Davy Laboratories as the Supervisor of the Microbiology Department. She has over 20 years of laboratory experience beginning in the field of inorganic wet chemistry and then microbiology, including sample preparation and analysis. Stephanie coordinates and/or conducts all microbiological analyses on water and wastewater samples. Additionally, Stephanie conducts food microbiological analyses and tracks client monitoring history for compliance purposes. In addition to her supervisory duties, Stephanie is instrumental in maintaining certifications for the microbiology department and is involved in all audit surveys by various state agencies.

Stephanie earned her BS degree from the University of Wisconsin-La Crosse with a major in microbiology and a minor in chemistry in 1997.

Stephanie Nicklay

Stephanie Nicklay works at Davy Laboratories as the Supervisor of the Organic Chemistry Department. She has over 20 years of lab experience in different testing procedures and familiarity with numerous types of instrumentation. Her career in chemistry began in 1996 when she started working as an Inorganic Laboratory Technician at Davy Laboratories. Throughout the years, Stephanie has gained experience in all the departments within the laboratory. In addition to her work in the Organic and Inorganic departments, she has gained experience in Microbiology, Shipping and Receiving, and Field Sampling while at Davy Laboratories. In addition to her work at Davy, she has also worked in a Metals Department, utilizing Furnace AA, at another company.

Stephanie earned her BS degree from the University of Wisconsin – River Falls with a major in conservation and a minor in biology in 1996. She has continued to expand her knowledge of topics in environmental chemistry through continuing education opportunities with local institutions.

Eddie Clark

Eddie Clark works at Davy Laboratories as the Supervisor of the Sample Control and Receiving Department. He has 15+ years of experience in sample control and receiving, including sample bottle preparation, sample preservation, shipping of sample kits, sample preparation (i.e. filtering, pH checks, etc.), and sample receipt.

Eddie’s reputation precedes him, notably due to his knowledge, dedication, and experience working with water and wastewater samples. Eddie has extensive knowledge of computers and is highly proficient using the laboratory information management system (LIMS), as used by Davy Laboratories to log, assign analysis, and determine delivery of samples to the correct analytical department.

In addition to his supervisory duties, Eddie assists in sample collection, sample kit delivery, and pick-up. He works with various shipping carriers to ensure on-time delivery of sample kits to their destinations, as well as their return to the laboratory within sample holding time.

Eddie earned his high school degree from Logan High School in La Crosse, Wisconsin in 1998. Eddie lives in La Crosse, Wisconsin.