June 2011

SEL intoduces its SELtrace technology, which provides online monitoring and control of inhibitor and dispersant levels in boiler and cooling water systems. Real time monitoring and control is accomplished through the use of Walchem's Webmaster controllers and SEL's trace technology incorporated into its product line.

October 2011

SEL's Charlotte-NC District Manager -- Mark T. Lewis, CWT --  has been elected by the AWT Board of Directors to succeed his Board position to that of President-Elect of the Association of Water Technologies. Mark will be the second member of SEL, along with SEL’s Director of Consulting and Technical Services -- Bill Pearson, CWT -- to serve as the President of AWT.

April 2012

SEL contracts with Pfizer at their Sanford, NC plant to provide their utilites water treatment services. SEL is the dominant water treatment services provider to the pharmaceutical industry in North Carolina bringing the total pharmaceuticals plants served, in the Triangle area of North Carolina alone, to nine.

September 2012

SEL to attend the Association of Water Technologies Annual Convention and Exposition in Palm Springs, California. Mark T. Lewis will be installed as AWT president at this convention.