HollyFrontier Cheyenne Refining LLC, a subsidiary of HollyFrontier Corp., Dallas, has purchased and installed the MetalGuard™ Selenium online analyzer to measure the wastewater selenium profile at the Cheyenne Refinery, Cheyenne, Wyoming.

Results from City of Phoenix 23rd Avenue Wastewater Treatment Plant control of THMs during 2016 field testing.

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 piloted tested an aeration system for additional THM removal. Influent and effluent THM values were measured for the duration of the study using an online THM analyzer.

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.

The THM-100-FP™ is the only online analyzer to implement an accelerated THM Formation Potential process to develop real-time predictions of future THM levels in the distribution network. The analyzer provides high frequency real-time accurate data on TTHM and THM Formation Potential.

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

MetalGuard™ is the first fully automated, online multi-stream analyzer for monitoring trace metal contaminants such as arsenic, chromium-6, selenium and more. The online analyzer provides high frequency real-time data on trace metals contaminant levels in less than one hour with sensitivity down to 1 ppb.

MetalGuard™ Chromium is the first fully automated, online multi-stream hexavalent chromium (chromium-6) analyzer for monitoring drinking water with chromium contamination. The online analyzer provides high frequency real-time data on chromium contaminant levels in thirty minutes with sensitivity down to 0.5 ppb.

MetalGuard™ Selenium is the first fully automated, online selenium analyzer for monitoring industrial wastewater discharges. The analyzer provides real-time data on selenium contaminant levels in less than two hours with sensitivity down to 1 ppb for certain selenium species.