Bob Larsen
Chemist/President
WI - Southeast

After completing undergraduate and graduate college work in a multi-major curriculum, Bob Larsen spent several years in the business. With a passion for chemistry, Bob shifted to work in chemistry field covering the Wisconsin territory for a number of water treatment companies. While his initial work was in the area of potable water treatment, he eventually came to specialize in the application of chemicals to boilers and cooling towers.

In 1986, Bob and his wife, Mari Ann formed Chem-Tech International as a company that not only specialized in boiler and cooling tower water treatment, but added a very special technological approach to the business. The purpose of this approach was to bring a greater assurance that there would never be a water-related failure. As president of this company, it has been his goal to advance the technology to the extent that 100% success is not only possible, but most probable and has added products, services, equipment, supplies, and processes to achieve this goal.

Contact Information
Cell: 920.946.3595

Mari Ann Larsen
Vice-President

Mari Ann Larsen has been vice president of Chem-Tech since its inception in 1986. Prior to that Mari Ann was a real estate agent with Century 21. She is involved in the management of day-to-day operations, personnel administration, and marketing functions. Mari Ann has over twenty five years experience in the business management field. 

She explains, "I love to work with vendors and suppliers on a personal level in order to gain the best possible prices for our customers."

Contact Information
Cell: 920.946.3118
Office: 866.998.7328 Ext. 306
Shawn Dittrich
Chemist/Service Engineer
WI - Southeast Milwaukee Area

Shawn Dittrich graduated in 1999 from Northern Michigan University. Through hard work and dedication to the sciences, Shawn earned a Bachelor of Science in Zoology. He started working for Chem-Tech International, Inc. in July of 2005 as a service engineer.

Shawn says, "I feel that a good water treatment program should be proactive, not reactive." He feels that success can be achieved through constant communication, continued education, and on-site training. Shawn likes to empower the customer by "Making each service stop an educational experience for the system operator." By adopting a proactive approach to water treatment. Shawn believes a water treatment program's success level can soar to new levels of perfection

Contact Information
Cell: 920.946.1983
Matt Cafarelli
Chemist/Service Engineer
IL - Chicago

Matt Cafarelli, born and raised in Chicago, earned his bachelors of chemistry from Illinois State University in May of 2007. Matt was part of an environmental research group at Illinois State that studied the effects of greenhouse gases on the atmosphere. After working in the plastics industry, Matt started at Chem-Tech as a Chemist/Service Engineer in January 2009.

Matt believes “Every visit to a customer is an opportunity not only to teach, but to learn. New challenges present themselves everyday and it is important to always be thinking of ways to improve”. Matt feels the key to making any situation work is trust between the representative and the customer.

Contact Information
Cell: 708.254.3136
Joe Novello
Chemist/Service Engineer
WI - Madison

Joe Novello was born and raised in Green Bay, WI. He began his career as a design drafter for a small engineering firmin De Pere Wisconsin that specialized in process heating and thermal air pollution control systems. In 2010, he earned a bachelors degree in Biochemistry with an emphasis on medical/dental 
 pharmacology and toxicology from the University of Wisconsin Stevens Point. Shortly after graduation he started working as a chemist/service engineer for Chem-Tech International, Inc.

Joe says his favorite part of his job is working with the wide variety of people and systems. This diversity provides for an ever expanding set of challenges and an exciting environment for work. It also promotes a setting for continuous learning and problem solving based on what is best for the system but more importantly what works best for the customer.

Contact Information
Cell: 920.946.0979
EXECUTIVE PROFILES
Matt Blodgett
Chemist/Service Engineer
WI - Northern

Matt Blodgett was born and raised in Stoughton, WI and currently resides in the Stevens Point. In 2010, Matt earned a bachelor's degree in Biochemistry from the University of Wisconsin Stevens Point. During college, he participated in an undergraduate research project that studied the protein differences of wild-type and knockout mice. Matt started at Chem-Tech International as a Chemist/Service Engineer after spending some time in the fertilizer industry

Matt enjoys traveling to the various customer locations and learning about their stories. He says, "With this connection, we can work together to use superior chemical testing quality chemicals and complete knowledge to be able to handle any situation and leave each system striving for no less than 100%."

Contact Information
Cell: 920.946.3082
SERVICE ENGINEERS
OFFICE ADMINISTRATION STAFF
Jason Sprang
Plant Manager

Since 2006, Jason Sprang has been a valued employee at Chem-Tech. After learning every aspect of production, shipping, and safety; Jason moved into the position of Plant Manager. Jason says, "In the past few years with Chem-Tech,  I've learned that this company is built on solid principles, commitment to customer satisfaction, and superior quality of product."

Contact Information
Office: 866.998.7328 Ext. 307
Lori Ploof
Office Manager

Lori Ploof started with Chem-Tech in 1990 when the company built its home base in Random Lake. Lori wears many hats around the office, including customer service, invoicing, researching equipment for customers, supporting the company's field representatives, and most recently taking on the responsibility of office manager. Lori enjoys working with customers and places an emphasis getting to know customers and responding to each individual customer's needs. She says, "Everyday is something new."

Contact Information
Office: 866.998.7328 Ext. 301 & 302
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Robin Temby
Office Assistant

​Prior to joining Chem-Tech in late 2008, Robin Temby had spent a season working as a Microlab Technician at a tomato cannery in Modesto, California. Now as an office assistant at Chem-Tech, she performs back up customer support and invoicing. With lab experience under her belt, Robin also aides in performing analysis on boiler and cooling tower water samples for clients. In 2010, Robin earned her bachelor's degree in Accounting from Lakeland College in Sheboygan, WI.

Contact Information
Office: 866.998.7328 Ext. 304