Utility managers can use this article as an example of how
aerobic spore monitoring can be used to demonstrate potential
for Cryptosporidium removal at their own facilities. The
authors discuss the Cryptosporidium removal potential in full-scale
treatment processes using full-scale aerobic spore monitoring.
Other utilities can use similar aerobic spore monitoring data
to evaluate the potential of their treatment processes to remove
Cryptosporidium, Giardia, and other microorganisms of public
health concern.
However, although raw water concentrations at participating
utilities were higher than would be found at most places in the
United States, the participating utilities could have benefited by
using lower detection limits for filtered water samples. Other US
utilities with lower raw water spore concentrations may have
facilities capable of achieving 3.0-log or greater removal of spores
and Cryptosporidium, but these facilities may not be able to mathematically
demonstrate this capability unless they develop methods
to achieve lower detection limits in filtered water samples. Includes 15 references, tables, figures.