Introduction In June of 2015 the ASHRAE Standards Committee developed Standard 188-2015, Legionellosis: Risk Management for Building Water Systems. The most recent updated document (188-2018) outlines the minimum requirements for the development, implementation and ongoing maintenance of a L egionella risk management program in new and existing buildings. The Standard is a culmination of several years of [...]
Santa Ana Pueblo, NM required an additional water treatment system to meet the needs of their growing community. After previously working on a project with Tonka Water, a U.S. Water Brand, and being impressed with the high level of customer service they had experienced, the Pueblo once again sought out the company’s expertise. Santa Ana Pueblo opted to pre-purchase the new treatment system for construction, [...]
U.S. Water Services, Inc. (U.S. Water) and CTE Global, Inc. have entered into a settlement agreement resolving their litigation involving U.S. Water’s patents relating to the use of phytase to control mineral deposits in fuel ethanol plants. The terms of the settlement are confidential. The United States Patent Office issued U.S. Patent Nos. 8,415,137 and 8,609,399 relating to U.S. Water’s [...]
The beginning of a new season is the perfect time to perform system maintenance. As many plant operators know, consistent system maintenance optimizes system performance, prolongs the life of your system and detects minor fixes before they transform into costly repairs. We’ve included a list of suggested tasks below to help you perform a quick system check-up. Filters Ensuring that your filters are [...]
As featured in Environmental Science & Engineering Magazine.
On the surface, it might seem that knowing when to replace the membrane elements in a reverse osmosis (RO) system would be simple. In attempting to keep it simple, many companies will use one or more of the following guidelines for replacing their membrane: time, often after 3 years (the membrane manufacturer’s warranty period) an increase in the RO permeate conductivity, as related to their water [...]
Bridgeport, located in western Nebraska, had previously been able to pump water directly out of the ground and into the distribution system, without needing to treat the water. It was later discovered that the water contained elevated levels of uranium, requiring treatment. Uranium can be naturally found in groundwaters, slowly dissolved over time from soils and sedimentary rock. Uranium is also a by-product of [...]
Should you be chemically cleaning your filter media? This may sound like something that could be beneficial, but it may not be right for your filter. This is especially true if you have Greensand™ or Ironman Sand™ filter media. Greensand and Ironman media are coated with manganese dioxide which, when charged, oxidizes manganese as water flows through the filter. Unfortunately, chemicals that are [...]
By optimizing your backwash system, you can improve your overall filter performance and reduce backwash frequency, while cutting down on media costs and preventing excessive water usage. 1. We recommend increasing your backwash frequency if you are experiencing: Excessive headloss (debris buildup in media) Diminished effluent water quality 2. We encourage you to sample your backwash water on a [...]
As featured in Water Online.
Read Kevin Milici, Vice President of Marketing and Technology, and Mary Sitko, Director of Municipal Equipment Sales, in their interview with Water Online below or listen to the live podcast interview. Water Online Radio: How is U.S. Water out there serving the marketplace? Kevin: U.S. Water is an organization that had its origins back in 1997, a relatively new company. Since that [...]
Deciding when to replace your filter media can be difficult, especially when your filter continues to remove contaminants to acceptable levels. However, periodic media replacement is an essential part of your filter’s asset management plan in order to ensure optimal equipment performance and life cycle. We consider filter media to have an average life of 15 years with a range of 10 to 20 years depending [...]
Routinely experiencing water restrictions during the summer months due to periods of drought, the town of Round Hill, Virginia knew they needed to increase capacity. With high levels of iron and manganese present, Round Hill made the decision to build a new water treatment plant. The main zone within the town contains nine potable wells, with the new plant being Round Hill’s third treatment facility. The [...]
Spanaway is located in Pierce County, Washington approximately fifteen miles south of Tacoma. The Spanaway community was experiencing difficulties with manganese in their water distribution system. Tonka Water, a U.S Water Brand, was chosen to provide a new system based on quality of equipment and level of expertise. The water treatment system includes an OptaCell Plus™ pressure filter system and high rate [...]