The Advanced Monitoring Systems (AMS) Center, one of six technology areas under ETV, is operated by Battelle in cooperation with EPA's National Exposure Research Laboratory. The AMS Center evaluated the performance of the Man-Tech Associates Inc. TitraSip (Trade Name) SA (Stand-Alone) System in continuously measuring total chlorine, temperature, conductivity, pH, total alkalinity, and turbidity in drinking water. This verification statement provides a summary of the test results. The performance of the TitraSip (Trade Name) was assessed in terms of its accuracy, response to injected contaminants, inter-unit reproducibility, ease of use, and data acquisition. The verification test was conducted between August 9 and October 28, 1004 and consisted of three stages, each designed to evaluate a particular performance characteristic of the TitraSip (Trade Name). All three stages of the test were conducted using a recirculating pipe loop at the U.S. EPA's Test and Evaluation Facility in Cincinnati, Ohio.