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 City of Paso Robles, California used a new online THM monitor capable of low-level real-time detection of DBCM and BDCM to help characterize and monitor THMs their treated wastewater for ground water recharge use. The high frequency of reliable and accurate THM data provided by the online instrument proved essential to the City’s DBP strategy to obtain regulatory compliance with NPDES permit levels.

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.

The Pima County Regional Wastewater Reclamation Department is using the THM-100™ to optimize its chlorine injection process. The Tres Rios Water Reclamation Facility is using ammonia-laden centrate for THM control. The THM-100 monitor enables the facility to optimize its chlorine injection process and minimize the formation of THMs in its effluent water by providing the operational staff with immediate and accurate daily reports on THM levels. The complete article as published in the September 2015 issue of Water & Wastes Digest can be read here.