OZONE WATER SYSTEMS - Key Persons


Chris Key

Job Titles:
  • Regional Manager
Chris has lived in Mid Michigan all his life. Ozone Water systems found Chris in 2010 when he worked at Aerotech. OWS bought the patent and rights to ozone systems for dairy farms. Chris was the Aerotech water technician. Chris transitioned nicely from working on strictly dairy systems to a Regional manager that takes care of Coca-Cola, Pepsi, municipal odor control, and Life Support ozone systems.

David Smith

Job Titles:
  • Engineer
  • Professional Engineer
David Smith is an Arizona licensed professional engineer focusing on mechanical thermal and process systems. David has been designing systems for ozone and water applications since 1993 and has been part of the Ozone Water Systems team since 2009. David and his wife Laura married in 1988. They have two sons - Zach and Chris - both ASU graduates who are gainfully employed. David enjoys digitizing movies and television series that he and his family access through their home entertainment system. Spending time with family, friends, and his rescue dogs - Roxie and Buddy - are priorities when he is away from the office.

Don Oplinger

Job Titles:
  • Panel Shop Manager
Don Oplinger is the Panel Shop Manager for Ozone Water Systems. Currently, Don is managing our UL508 & CE Control Panel Shop, and assists in Electrical drawings, automation programming, and customer service troubleshooting. Don has experience in automation controls programming, field service, electromechanical assembly, and environmental testing. Don enjoys camping and traveling with his family and keeping cool in the pool in the Arizona heat.

Grant Nichols

Job Titles:
  • Regional Manager
Born in San Diego, Grant got his start in aquatics at SeaWorld of San Diego. He worked from the bottom up starting off as a maintenance diver before migrating to the Water Quality Department in a less immersive capacity as a Filtration Mechanic. Grant was offered an opportunity to be part of The San Diego Zoo's efforts to create it's own Life Support/Water Quality Department. He credits this as one of his most professionally challenging experiences. Some years later Grant was offered the opportunity to work with Kurita America as a UPW technician in the International Rectifier plant in Temecula, CA. Looking for a change, after almost 5 years, a chance meeting with John Overby led to a long-sought opportunity to work with OWS. In his spare time, Grant wonders what it's like to have spare time. He enjoys playing racquetball, fishing and spending time with family.

Ian Potton

Job Titles:
  • Manufacturing Coordinator

John Overby

Job Titles:
  • Sales
John Overby graduated from Arizona State University with a degree in Chemical Engineering. Lying by the pool "unemployed" one day he spotted an ad for an Application Engineer for Ozone Research and Equipment Corporation (OREC). A call to his mentor Marshal Mallak resulted in a long time journey in the ozone industry… Here John began a journey that would become a passion: increasing global awareness of the benefits of ozone; first with OREC, then through company acquisitions and evolutions, with such companies as Osmonics and GE. John spent four years in ozone applications by supporting the worldwide sales efforts until Osmonics/GE purchased Lakewood Instruments, a cooling tower control company, and John went to work with this division to help expand ozone into the cooling tower industry. John then went to work for GDT Technologies in 2000 promoting ozone mass transfer equipment; integration of gas into water with the Mazzei injector and degassing separator technology was marketed and engineering assistance was offered. In 2002 John joined Ozone Water Systems and continues to lead the industry, delivering turnkey ozone systems to customers worldwide. John is a proud member of the Porsche Club of America as well as the International Ozone Association. When not driving his car he can be found working or hiking down the Grand Canyon.

Johnathan Lopez

Job Titles:
  • Manufacturing Technician

Juan Carlos Ayala

Job Titles:
  • Quality Control & Service Technician
  • Team Member
Juan Carlos has been an Ozone Water Systems team member since 2008 and is currently a Quality Control & Service Technician. Juan Carlos has a background in electrical control components. He likes to spend his free time camping and spending time with his friends and family.

Judy Roberts

Job Titles:
  • Accounts Payable
Judy Roberts started with John Overby back at the beginning of the Phoenix operations in 2003 and has helped grow OWS into what it is today. All the success of OWS is owed to Judy (even though Mark F. may not agree 100%). Judy was born in Ojai California and has four wonderful kids and four grandkids all in the Phoenix area. Her kids are all successful with degrees ranging from Criminal Justice to a talented cast member over at Tokyo Japan, Disney! Judy has run many of her own businesses and has helped grow OWS from a couple person endeavor into the company that we are today (with nearly 30 full-time employees). Judy enjoys travel, reading and spending time with family.

Kathryn Carrigg

Job Titles:
  • Service Coordinator
Kathryn Carrigg has been part of the Ozone Water Systems family since 2011. She is the backbone of the service call center, keeping things organized and running smoothly. Kathryn enjoys camping with the Military Vehicles Collectors of California and traveling.

Laura Smith

Job Titles:
  • Purchasing / Billing Specialist
Laura ensures that our orders for parts and materials are fulfilled by the best possible source. She is in regular communication with our suppliers to make sure pricing, availability and quality requirements are met for every order. Prior to joining Ozone Water Systems, Laura educated the youth of America. She taught students from pre-school age through 3rd grade. When not at work Laura enjoys reading, crafts of all kinds, watching movies, and spending time with family, friends, and pets.

Mark Fisher

Job Titles:
  • Service
Mark Fisher began down the path towards a life with ozone in the early 1980s when he moved to the SF Bay area. After installing solar systems for a few years he started a solar service department for Stanford Energy, a solar and cogeneration micro-utility company. Then around 1988, he worked with National Water Management Corporation, which used ozone as a stand-alone water treatment for cooling towers, where he ran the service department and ensured new system successfulness by being the technical link between sales and engineering. When National Water Management Corporation lost its funding in the early 1990s, Mark started Ozone Water Systems, Inc. - a small regional ozone service company. In 2002, with the addition of John Overby, Ozone Water Systems became systems integrators and began providing "the right system for the right application". Mark credits his dedicated teammates with giving Ozone Water Systems an edge in the marketplace by making it a stronger, more flexible and fun company to be a part of.

Nader Mahrish

Job Titles:
  • General Manager
Nader Mahrish joined the Ozone Water Systems team in 2008 and it didn't take long to become apparent that he has a gift for project management and problem-solving. In his time at OWS Nader has worn many hats and often still does: coordinating projects, supervising many of the day-to-day activities and keeping the office running smoothly. Nader graduated from Fresno Pacific University with a degree in Marketing. Nader enjoys playing basketball and is a huge Phoenix Suns fan. Oh yeah, he also likes the Green Bay Packers… Hey, nobody's perfect.

Patrick "Teak" McGhie

Job Titles:
  • Logistics Manager

Rick Shumway

Job Titles:
  • Purchasing Manager
Rick started with Ozone Water Systems in October 2011. Prior to Ozone Water Systems, he has worked in production and purchasing of raw materials for construction related products. When not at work Rick enjoys spending time with his wife and four kids. Rick enjoys sports, camping, family trips to Disneyland, and many other dangerous activities. His life motto is Git -R- Done and he is an enthusiast of all things that glitter and/or shine.

Robert Miller

Job Titles:
  • Accounts Manager
Robert Miller has been around the Ozone industry since 1992. He has been with Ozone Water Systems since February 2005 working in different areas of the company during its growth. These areas include the service department, parts acquisition, product management, inventory control, and accounting. Robert enjoys spending time with his family as well as going to car shows featuring older American and/or European cars.

Rudolph "Ham" Sandquist

Job Titles:
  • Quality Control & Service Technician

Scott Johnson

Job Titles:
  • Electrical & Controls Engineer
Scott Johnson is an Electrical & Controls Engineer. Scott ensures that our systems are functioning perfectly before they leave the Phoenix facility. He is a master welder and has been part of the team since 2007. When he's not working on electrical and controls projects, Scott enjoys the outdoor activities of hunting, fishing, and four wheeling.

Shane Christopherson

Job Titles:
  • Director of Electrical Engineering & Quality Control
Shane Christopherson started with Ozone Water Systems in 2005. Shane has played an integral roll in establishing and/or improving several departments including electrical engineering, manufacturing, parts, service, and quality control. He wears many hats here at OWS and is always willing to do whatever it takes to get the job done and take care of the customer. Shane has a knack for being able to figure out and fix just about anything. In his spare time, Shane enjoys spending time with his wife and 5 boys inventing and building projects like go-carts, RC cars and airplanes, and customizing cars.