Illuminating Technologies

| Around the time Galileo Galilei looked through his telescope and first spotted Saturn, another revolutionary idea was being explored when early scientists in 1614 realized that sunlight has powerful chemical properties. That early seed of a theory led researchers to explore the idea through the centuries, leading eventually to today’s ultraviolet disinfection technologies for water ... READ MORE

Tank Linings and Coatings

| Because water tanks are susceptible to corrosion, they benefit from a liner or special coating. The choice can depend on what material the tank is composed of, its location, condition, and cost. Whatever material is selected, it should create an impermeable barrier, fully adhere to the substrate, and seal all the gaps. In addition, manufacturers ... READ MORE

Intelligent Water Management

| There is an old saying, “If you’re so smart, why aren’t you rich?” Smart management of a water supply can greatly reduce operating costs and stretch municipality operating budgets, while providing superior service. The keys to being smart, the brains of the operation, are Automatic Meter Reading (AMR) technologies and Advanced Metering Infrastructure (AMI) systems. ... READ MORE

Critical Support

| We’ve all had it happen. Either ourselves or our neighbors have had their basements flooded during a major rainfall. To make matters worse, a lightning strike has taken out the neighborhood power grid, rendering the basement sump pump inoperable. It’s a helpless feeling to watch as the water rises up through the foundation. Whether it’s a small basement foundation or a major flood control levee, pumps are critical to the performance of hydraulic control structures. Except for those rare cases in which small-scale manual pumps are still employed, pump operation depends on the available power supply. For potentially critical situations, a ready backup power supply should be available to take over if the main power grid fails. But before these backup power systems can be appraised, the basic question of how much power a pump requires has to be answered. ... READ MORE

Recharging Our Water Resources

| Most states in the US have had long-established groundwater management regulations that all water agencies must comply with, except for California—until it adopted the Sustainable Groundwater Management Act (SGMA) in 2014. Agencies outside of the state are paying attention. ... READ MORE

Greener Grounds, Greener Business

| Mark Hurd, grounds and irrigation foreman for the Davis School District, Utah’s second largest, has seen a lot of changes in irrigation technology in the three decades he’s been doing his job. But as of late, he’s noticed them developing at warp speed. ... READ MORE

A Wave of Innovation

| Wastewater treatment plants are impacted by the same infrastructure issues as highways, bridges, and municipal water systems. As population increases and permitting requirements are strengthened, there is little room to upgrade and expand. Costs are also prohibitive. New technologies like membrane bioreactors (MBR), however, can fit in the footprint of an existing plant, expand it, and respond to local, regional, and national permitting requirements at the same time. ... READ MORE

Geotracking

| Do you know where your assets are?” Chris Stern, director at Trimble Water, asks water utilities. Infrastructure is constantly being built over, and often there are only hand-drawn sketches available to pinpoint its location. Even in cases where good records are kept, such as Los Angeles, they’re still not digital. “It’s old technology that is inefficient.” ... READ MORE

Conserving Water & Preserving Life

| The world’s first major city is about to run out of water. The Theewaterskloof Dam reservoir—which normally supplies water to a city of four million people—is almost empty of water and is being filled with sand dunes. Since 2014, the drought has also affected the millions of inhabitants of Western Cape Province who depend on these water sources. The South African government has begun limiting water use. The city’s water system managers have projected a date when the city runs out of water, a date given the name “Day Zero.” At that point the city will have to install 200 centralized water rationing stations guarded by local police and security forces. Hospitals and other essential services will be exempt, but most residents will face severe restrictions on water consumption that could endanger basic health and sanitation. As the climate changes, Cape Town is not alone. From drought-stricken Syria to the fires of California, water scarcity is threatening the basic requirement for the existence of any city: a secure source of clean, potable water. ... READ MORE

Smart Water for Smart Cities

| Simply collecting data is the easy part. Making sense of it is more complicated, and properly using it for planning purposes is even harder. Acquiring and utilizing accurate data in a timely manner is, by far, the biggest challenge. ... READ MORE

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