This slide presentation begins by outlining the Total Coliform Rule (TCR) objectives that include: evaluate the effectiveness of treatment;
determine the integrity of the distribution
system; and,
signal the possible presence of fecal
contamination. The approach used in this study included: collect and process existing coliform data
from utilities, states and U.S. Environmental Protection Agency (USEPA) to evaluate the
effectiveness of the sampling plans specified
by the Total Coliform Rule;
Analyze data by
summarizing occurrence results,
exploring current sampling to meet objectives of TCR,
evaluate possible surrogates for fecal contamination;
evaluated the effects of larger sample volumes; and,
evaluated short-term temporal variability. A parallel research program is outlined that involved:
Tampa Bay Water and Pinellas Utilities are
exploring a recent increase in total coliform
positive samples;
intensive sampling including 2 liter total
coliform samples and short-term temporal
sampling;
data will be critical to considering sampling
options - Power Analysis; and,
evaluate effects of sample volume - Bootstrapping Analysis. Topics outlined include: available data; data limitations; follow-up sampling; patterns; power analysis; detectable differences; Binomial Confidence Intervals; summary of power analysis; considerations for TCR; other sampling plans; effect of larger sample volume; Pinellas Large Volume Study 2004; TBW/PCU Total Coliform
Monitoring Program; Summary Results for TBW/PCU
Coliform Monitoring Program
October 2005-November 2006; Preliminary Observations
TBW/PCU; Implications for TC events; and, recommendation for events. Includes tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 280 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 30 |
| Published : | 03/01/2007 |
