cleaning all likely worked together to lower
disinfectant consumption, lower temperatures
and physically remove THMs formed in
the tank. By applying an integrated approach
to THM reduction, operators at Monterey
were able to achieve a successful result. S
Peter S. Fiske, CEO, Pax Water Technologies,
received his Ph.D. in Geological and Environmental
Sciences from Stanford University and is
the author of over 20 peer-reviewed articles. He
has technical expertise in the fields of chemistry,
fluid mechanics and physics.
Leslie Jordan, Water Quality/Environmental
Compliance Superintendent, California American
Water, Monterey, has 26 years of experience
in the water industry, and has had operations
and management roles in water quality and
Figure 3. TTHM levels at the Ryan Ranch tank in 2010 before installation
of the TRS (red) and 2011 after installation of the TRS (blue).
Figure 4. TTHM levels at the Upper Ragsdale Court sample
location before installation of the TRS (red) and after (blue).
THM Levels, Continued from page 21