Puretec Is Proud to Expand San Jose Service Team

Puretec Industrial Water is excited to announce the addition of Mark Keenan, Jr. Ornelas, and Rick Kaiser to our service team in San Jose, CA. Together, these individuals bring over 50 years of combined hands on experience with industrial water treatment systems for the power, pharmaceutical, semiconductor, and many other industries.


Mark Keenan

Operations Manager

39 years experience including several years with Arrowhead, Ionics, and Siemens. Considered an expert in Systems Sterilizations, Mark has worked on most major customer sites and UHP systems in the San Jose and Bay area. Most recently, Mark owned ProDI Sani Services and Porterville Pure Water.  Mark has also managed systems commissioning and startup teams and has been involved in the original installation and operation of many existing systems in the San Jose Area


Rick Kaiser

Senior Engineer

Rick is an industrial water systems design and construction professional with over 35 years experience in various facets of water and waste water treatment. Rick has worked with reverse osmosis, ion exchange, and filtration since 1976 and has witnessed developments firsthand in the many advances in membrane technology (RO, UF, NF, MF).  Additionally, Rick has developed a deep working knowledge many treatment technologies including UV, ozonation, oxidation, metals removal, and the application of materials in corrosive environments.

Jr Ornelas

RO Service Tech

Over 5 years experience as an RO / DI Systems Technician with additional experience in Instrument Calibrations and systems Installations and Startups.


Jorge Guzman

DI Service Tech

As a DI Service Technician, Jorge comes to Puretec with experience in safely handling large multi-axle vehicles as well as forklift and other equipment.


Giselle Bitz

Territory Sales

With over 8 years in the high purity and industrial water business, Giselle was acknowledged for her in Inside Sales for US Filter and Then Siemens Water. She has over 20 years of experience in Nor Cal industrial, commercial, and high purity markets.

Puretec Industrial Water provides a complete line of water treatment services and parts across California, Arizona, Nevada, and New Mexico.