Lake Arrowhead's Closed Vessel Wastewater Reuse Solution

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Lake Arrowhead's Closed Vessel Wastewater Reuse Solution

During a multi-year drought that started in 2000, Lake Arrowhead, California, started looking at ways to further protect, preserve and supplement its water resources. After successfully lobbying the State Water Quality Control Board, an amendment was made within the Lahontan Region Basin Plan to allow the use of recycled water for outdoor irrigation at elevations above 3,200 feet. To proceed, Lake Arrowhead needed to upgrade disinfection technologies at the Grass Valley Wastewater Treatment Plant.

In this case study, you'll learn why the district chose a closed-vessel TrojanUVFit. System design parameters are included along with a comparison of UV system options for the Lake Arrowhead plant.

About TrojanUV
For more than a quarter of a century, Trojan has led the development of water treatment solutions using environmentally friendly ultraviolet light. Today, the company has the largest installed base of UV systems in operation on the planet, and many of its innovations define the industry standards for safeguarding our water from the damaging effects of microbial and chemical contamination. For more information, visit

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