Pump Curves and Sizing

Mark Thein

President

Mark has been working at Thein Well since he was 12 years old and has been full-time since 1990. A graduate from the University of St. Thomas with a degree in Business Administration and a minor in Economics, Mark lives in Oronoco Township with his wife, Jenni. and their boxer dogs - Laila, Sugar Ray & Sweet Pea. They have three adult children, Katie, Abby & Peyton.

Mark was elected as an Olmsted County Commissioner in 2016 and still serves on the County Board. He served as an assistant varsity football coach at Pine Island High School from 2011 thru 2021. Mark enjoys fishing and traveling in his free time.

Dennis Thein

CEO

DenMar63@gmail.com

Mobile # - 507-696-7201

Dennis grew up with his brothers in the water well business in Clara City, MN. Summer Mondays typically meant traveling to a drill-site with an older brother or hired man to work for the week. In the early 1960s, he married Marge and they established the Rochester branch of Thein Well Co.

An innovator, Dennis holds several patents in the water well industry, is a certified Master Water Well Contractor and was the first in the area to invest in Rotary well drilling equipment - drilling wells in days instead of weeks.

Dennis and Marge now spend the majority of their time enjoying the sunny skies and warm temps of Naples, Florida.