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Application Brief: Online THM Monitoring Helps New Jersey Water Authority Achieve DBP Compliance

An online trihalomethane (THM) analyzer, THM-100™, was installed to monitor THM levels at The Old Bridge Municipal Utilities Authority (Old Bridge MUA) serving the township of Old Bridge, Middlesex County, New Jersey. The utility learned that quarterly DBP compliance measurements are inadequate for understanding actual DBP levels within the water distribution system; since DBP levels can range significantly, even within the same day. However, through frequent and effective direct THM monitoring, as provided by the THM-100 analyzer, they could establish a baseline and optimize DBP management processes managing compliance to the Stage 2 DBP Rule.

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SafeGuard™

SafeGuard™ is an automated trace metals analyzer for monitoring municipal and industrial water and wastewater. The system provides real-time, multi-stream analysis for trace metal contaminants.

SafeGuard delivers accurate and reliable results (up to 1 ppb or ± 15%, whichever is higher) with a typical measurement time of fewer than 30 minutes. An enhanced system is available with a fast turn around time of 5 minutes without compromising accuracy. The analyzer can be used to measure up to two different trace metals contaminants on the same instrument.

Trace Metals

Contaminants such Arsenic, Chromium-6, Lead, and Selenium have come under increased regulatory pressure due to their impact on public health and the environment. The ability to obtain high frequency data and adjust contaminant remediation processes in real‐time to mitigate the impact of trace metals is only made possible through the use of the online MetalGuard™ and SafeGuard™ analyzers.

Disinfection By-products

Reliable data on THM and THM Formation Potential concentrations is required to mitigate the presence of harmful DBPs and monitor the success of THM remediation processes. Accurate and real­‐time data on THM concentrations is only possible with the online THM‐100™ analyzer.