15,422 tests were conducted on over 3600 samples in our lab which is
certified for bacteria and certain chemical analyses. These samples were
drawn from raw water at Floods Pond in Otis, during the treatment
process at our ozone plant, and from dozens of locations through the
distribution system and for other area utilities.
District's lab uses a methodology for testing total coliforms called
Colilert Quanti-tray. This EPA-approved method provides a better means
of identifying coliform bacteria. Not only are total coliform results
available in 24 hours, E. coli can also simultaneously be detected. The
District collects and tests about 60 finished water samples per month
for total coliforms and E. coli.