Full Description

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 monitoringinstrumentation. A secondary objective of this research is to develop a matrix of surrogates for evaluating andtesting the performance of the on-line instruments in a distribution system. The USEPA's Water AwarenessTechnology Evaluation Research and Security WATERS Center utilizes an above ground simulated distributionsystem (DSS). Experiments are underway to evaluate the selected on-line sensors in the DSS for their ability todetect changes in water quality due to chemical, physical and microbial agents at concentrations that would presenta public risk in a distribution system. Sensitivity, response, limit of detection, reproducibility, and potential forfalse positives, false negatives and other limitations of the selected sensors are being evaluated. USEPA investigatorsselected a platform array of real-time on-line sensors and instrumentation that represent the various types oftechnologies currently used by utilities to monitor water quality. USEPA is conducting studies to evaluate thechanges of water quality through the introduction of various contaminants.This paper provides results of the evaluation of existing sensors for their sensitivity and ability toidentify changes in water quality due to various physical, chemical, and biological contaminants. Includes tables.

Product Details

Edition: Vol. - No. Published: 11/02/2003 Number of Pages: 9 File Size: 1 file , 710 KB