California American Water turned to AMS’s MetalGuard™ fully-automated, online multi-stream Cr(VI) analyzer to have higher visibility of Cr(VI) contaminant levels in real-time and allow them to better monitor and address critical steps in their remediation process. 

Online instruments help water utilities control water treatment operations. CEO Rick Bacon of Aqua Metrology Systems explains how utilities rely on sensors to meet water quality compliance standards and optimize operational performance in the May/June 2019 issue of World Water.

As regulatory requirements and the availability of more accurate diagnostic technologies continue to push the legal threshold limit of contaminants, utilities are turning to high-frequency data to identify contaminant threats and diagnose critical treatment system performance. Learn how El Paso Water’s Upper Valley Water Treatment Plant met regulatory requirements with the help of AMS’s MetalGuard™ automated, online arsenic analyzer.

Aigües de Barcelona decided to monitor THM levels more frequently and they implemented the use of online analyzers to provide accurate and timely information regarding the THM formation in their network.

The Town of Tewksbury, Massachusetts, tested an aeration system for additional THM removal. The Tewksbury WTP measured real-time influent and effluent THM values using the online THM-100™ analyzer. Prior to using the online THM monitor, plant operators waited to receive analytical results from external analysis, often conservatively operating the facility since real-time THM values were not known. The real-time data provided by the online monitor made THM formation within the WTP and distribution system easy to identify.

The Brunswick & Topsham Water District (BTWD) in Maine was receiving high THM results despite implementation of best practices. The use of the THM-100™ online THM analyzer has proven a valuable tool enabling BTWD to optimize operations, better understand treatment processes, resolve THM compliance concerns and validate laboratory performance and results.

For more than five years Scottish Water has relied on the reliability and accuracy of the online THM-100™ monitor to continuously monitor THM levels at a number of their facilities. The online THM monitors have allowed Scottish Water to consistently monitor, maintain, optimize and respond to any on-going THM concerns in a very timely fashion. The THM-100 proved especially valuable at the Tullich WTWs when the facility tested and implemented an aeration system to further minimize THM formation.

The City of Santa Cruz Water Department (SCWD) has adopted the online THM-100™ THM analyzer for DBP management. Real-time and reliable data on THM and THM Formation Potential levels within the Graham Hill Water Treatment Plant and distribution network have been provided to the SCWD by the online analyzer. The THM-100 online analyzer has aided the SCWD in daily operations and management of feasibility studies to reduce distribution systems THM levels.

The Shades Mountain Filter Plant operated by the Birmingham Water Works Board (BWWB) has benefited from the real time high frequency data on daily THM values provided by the THM-100™ online analyzer. The online analyzer has proven valuable to THM mitigation strategy and optimization.

The Central Texas Water Supply Corporation has incorporated the THM-100™ online THM instrument at their WTP to help manage DBP formation.