Water Conditioning & Purification Magazine

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North America
Colorado River Basin drought to continue
Modeling results for the Colorado River Basin operations released by the Bureau of Reclamation indicates continued drought and an increased chance of potential water shortages by 2025. The Colorado River Basin is in its 21st year of an extended drought. As reservoir levels decline, Lake Powell and Lake Mead operations are potentially impacted. The Colorado River Simulation System modeling results, released at least three times per year, provide water managers with information needed to plan accordingly for the future. Due to the below average runoff this year (55 percent of average for the water year), the CRSS projections indicate an increase by as much as 12 percent in the chance of Lake Powell and Lake Mead falling to critically low reservoir levels by 2025, as compared with the projections released this spring. The CRSS projections can be found at https://www.usbr.gov/lc/region/g4000/riverops/coriver-projections.html.

IAPMO/AWWA guide issued
At a time when many buildings are not fully occupied due to COVID-19, AWWA and IAPMO have developed a guide to help building managers address water-system stagnation. Stagnation within building water systems is a concern in periods of low or no occupancy. When water does not move through the system, water quality issues may arise at an outlet, a group of outlets or throughout an entire building water system, causing potential health risks. Responding to Stagnation in Buildings with Reduced or No Water Use provides a decision-making framework for building managers to design responses to building water-system stagnation.

IDE awarded wastewater project
IDE Technologies has been awarded the Cherokee Metropolitan District Wastewater TDS Reduction Project, commissioned to begin in 2021. The company’s technology, an advanced high-recovery RO solution, will be part of the Cherokee Metropolitan District’s Water Reuse project. The main goal is to comply with a Colorado court order for the district to lower its TDS discharge to under 400 mg/L. Until recently, the district’s wastewater treatment plant used a traditional secondary process. In order to meet the new discharge limits for TDS, however, a membrane bioreactor and RO have been added. With brine management being a critical factor in the RO design, currently being addressed using evaporation ponds with a substantial footprint, it became evident that high recovery of 90-95 percent was needed in order to minimize the volume of produced RO brine.

Changes to NSF/ANSI/CAN 61 announced
Newly published changes to NSF/ANSI/CAN 61, the drinking water product standard required in the United States and Canada, further restrict the amount of lead that can leach from plumbing products, NSF International announced. The significantly more rigorous requirements were approved after nearly three years of exploring various testing methods to reduce lead leaching from endpoint devices that dispense drinking water, as well as from other plumbing components. The more stringent pass/fail criteria for certification to the standard will require the maximum amount of lead leaching to be reduced from five to one µg for plumbing endpoint devices that dispense drinking water such as faucets, and from three to 0.5µg for other plumbing components, such as connector hoses and small shut-off valves. In-line mechanical devices and other product categories under NSF/ANSI/CAN 61 are not subject to the new requirements. Under the new standard requirements, certification of applicable products to the more stringent lead leaching criteria is optional for the next three years to allow manufacturers time to comply. On January 1, 2024, all products will be required to meet the stricter requirements. Products certified to the standard’s new criteria will be required to indicate compliance on their product literature and/or packaging to enable schools and consumers to easily identify products with the reduced lead leaching limits. NSF/ANSI/CAN 61 also covers other contaminants in drinking water.

NDPA resource center opened
The National Drowning Prevention Alliance announced that its Resource Center has opened to improve access to relevant information by collecting, categorizing and organizing materials that are useful to all members of the aquatics industry and drowning-prevention advocates. It will provide a multitude of resources to the general public and to NDPA members at https://ndpa.org/resource_center/.

Better Water Today (betterwatertoday.org), WQA’s consumer-focused website, explains the benefits of in-home or at-the-tap drinking water treatment. The website, introduced at WQA’s Mid-Year Leadership Conference, uses easy-to-understand language and illustrations.

Water impact fund closed
In September, Emerald Technology Ventures closed its news water innovation impact fund with Temasek, Ecolab, SKion Water and Microsoft as investors. The fund will invest in early- to expansion-stage companies globally to drive critical innovation and its adoption in the water space. It will support the development of technologies that address some of the most pressing global challenges, as expressed within the UN Sustainable Development Goals, including conserving water resources, supporting solutions for sustainable, resilient cities, improving resource efficiency, adapting to climate change, reducing health risks and stimulating innovation as well as economic growth.

Angola water project announced
Idrica, through the Aguas de Valencia & Quantum Solutions Emerging Markets Consortium, will participate in the execution of three management, operation and maintenance contracts for drinking water supply systems in the provincial capitals of Uíge, Malanje and N’Dalatando (Angola). The contracts are worth approximately € 7 million ($20 million USD) and have a duration of four years. The contracts are part of the second phase of the Institutional Development Program for the Water Sector (PDISA 2), financed by the Government of Angola, the World Bank and the French Development Agency. The implementation is carried out by the Project Coordination Unit (UCP), under the Ministry of Energy and Water (MINEA). The management of the three contracts will be carried out jointly by Idrica and Quantum.

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