Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
HPC bacterial levels throughout biological and conventional treatment and distribution with free chlorine. Filter, filter effluent; inlet, distribution system inlet; cPVC, effluent from the cPVC section of the system; iron, effluent from the iron section of the system.
