DRINKING WATER CASE STUDIES AND WHITE PAPERS

• PWSA Reduces Customer Request Fulfillment From 4 Months To 14 Days

  Due to recent LCR exceedances, PWSA faced skyrocketing customer requests on top of the order to replace 7% of their roughly 18,000-33,000 lead service lines every year. In addition, their Lead and Copper Compliance (LCR) and Lead Service Line Replacement testing program (LSLR) required immense amounts of manpower. These two events combined to require thousands of point-of-use kits to be collected and tested every year. They looked to 120WA to solve the challenges of siloed data sources, kit delivery and pickup, lab coordination, and distribution of results.

• Real-Time Digital Analytics Identifies More Than 180 Million Gallons Of Annual CSO Reduction

  The City of Richmond turns to Xylem Wastewater Network Optimization to identify critical CSO-reducing projects, putting them on a path to regulatory compliance while avoiding costly and unnecessary infrastructure.

• Why Material Selection Matters

  The Tri-County Water Authority (TCWA) was formed in 1991 as a not-for-profit water utility serving portions of Jackson, Cass and Bates counties, Missouri. When the system was first established, about half of the pipe installed were ductile iron and half were plastic PVC. Today, the authority’s 120 miles of pipe are approximately 75% ductile iron and 25% plastic PVC.

• Managing Water Loss In Four Easy Steps

  A practical approach to detecting leaks and reducing non-revenue water.

  Water utilities are charged with an incredibly important task – providing safe and affordable water to communities in the face of aging infrastructure, funding gaps, and changing regulatory requirements. Specifically, when considering water loss control, leakage, and operational inefficiencies, costs may appear to be unaffordable.

• Legionella: The “Quiet Pandemic"

  Over the course of the COVID-19 pandemic, it is likely that many people have forgotten about Legionella, which has been described as a “quiet pandemic” by legislators in the United States. While the focus of many government health authorities has been to react to and reduce the impact of COVID-19, the many stay at home orders issued, and the increase in employees working from home has been ideal for Legionella bacteria present in cooling towers in commercial systems.

• Direct Burial Meters Offer Significant Savings

  Most pipelines are below grade, so vaults have traditionally been installed to provide access to any place where a meter and valve are necessary. Vault pits tend to be large, and the installation is by far the biggest expense of a metering project. The good news is that direct burial metering options can greatly simplify the installation requirements, significantly lowering the costs, while also boosting safety.

• Ozone Makes A Comeback

  Ozone has been a proven effective method of water treatment and disinfection for well over a century.

• Advanced Diagnostics of Thermal Mass Flow Meters

  Many thermal mass flow meters are of the insertion type. As a starting point, proper insertion depth and straight run per the manufacturer’s recommendations should be adhered to.

• Better Drinking Water Quality Starts Upstream

  While every potable water treatment process requires a balance of chemistry and biology to deliver safe, clean drinking water, added concerns from upstream stormwater or agricultural runoff only make the job that much more difficult. How can we do a better job of safeguarding water treatment plant (WTP) operations while protecting the health of water utility customers against threats of upstream nonpoint source (NPS) pollution?

• What Is Sustainable Flocculation And What Are Sustainable Flocculants?

  In most standard drinking water and wastewater treatment systems, there is a flocculation process that is used to reduce the concentrations of solids within the effluent stream. This particular process makes use of substances that aid in the clumping together of suspended particles among other contaminants in a clarifier system.