The primary objective of the research at the US Environmental Protection Agency (USEPA) Water Awareness Technology Evaluation Research Security
(WATERS) Center is to develop and evaluate performance criteria for on-line real-time drinking water monitoring
instrumentation. A secondary objective of this research is to develop a matrix of surrogates for evaluating and
testing the performance of the on-line instruments in a distribution system. The USEPA's Water Awareness
Technology Evaluation Research and Security WATERS Center utilizes an above ground simulated distribution
system (DSS). Experiments are underway to evaluate the selected on-line sensors in the DSS for their ability to
detect changes in water quality due to chemical, physical and microbial agents at concentrations that would present
a public risk in a distribution system. Sensitivity, response, limit of detection, reproducibility, and potential for
false positives, false negatives and other limitations of the selected sensors are being evaluated. USEPA investigators
selected a platform array of real-time on-line sensors and instrumentation that represent the various types of
technologies currently used by utilities to monitor water quality. USEPA is conducting studies to evaluate the
changes of water quality through the introduction of various contaminants.
This paper provides results of the evaluation of existing sensors for their sensitivity and ability to
identify changes in water quality due to various physical, chemical, and biological contaminants. Includes tables.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 710 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 9 |
| Published : | 11/02/2003 |
