Case Study | March 18, 2009

Water Supplier Ensures DBP Compliance With UV254 Organic Monitoring

Source: Real Tech Inc.

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Case Study: Water Supplier Ensures DBP Compliance With UV254 Organic Monitoring

By Jodi Glover, Real Tech Inc.

Mohawk Valley Water Authority (MVWA) in New York State is a progressive supplier of potable water. With source water from the Adirondack Mountains, MVWA works to improve on nature and provide superior water quality, always striving to meet or exceed drinking water standards.

Like many other surface water sources, MVWA's water supply is rich with natural organic matter (NOM). Unfortunately, growing research has demonstrated that NOM in water when combined with chlorine leads to the formation of potentially harmful disinfection by-products (DBPs), such as Trihalomethanes (THMs). New regulations such as EPA's Stage 2 Disinfection By-Products Rule have been implemented to protect the public's health from these potential cancer-causing substances and improve drinking water quality.

For several years, MVWA has been examining potential treatment strategies to meet the upcoming regulatory requirements. Their comprehensive research project indicated that it was very important to monitor for DBP precursor levels in the raw and filtered water continuously in real time. This important tool would enable them to monitor the effectiveness of their treatment processes in removing NOM and thereby reducing the potential of DBP formation. MVWA's parameter of choice, UV254.

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Case Study: Water Supplier Ensures DBP Compliance With UV254 Organic Monitoring

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