As part of this effort, EPA’s Arsenic Research Program fills in research gaps for a number of technologies and compliance approaches, and provides information to utilities, engineering firms, regulatory officials, and others. In addition to developing training materials, software, and design manuals, EPA conducts:
In-house research consists of a variety of activities, including studies on adsorptive media coagulation, filtration, iron removal, and other processes, using bench-scale and pilot-scale methodology. These studies have resulted in a number of technical reports on:
To assist states and water utility operators in meeting the new arsenic standard of 10 µg/L, EPA provides training and technical assistance materials such as software, design manuals, and Web casts. These items provide practical information for states and operators as they move into compliance with the new Arsenic Rule.
Small-system operators face many challenges, including determining the best low-cost technology for a system and finding money to fund the technology. In response to these challenges, EPA initiated the Arsenic Removal Technology Demonstration Program in 2002 to evaluate performance, reliability, and cost of arsenic removal technologies and their effect on distribution systems.
The goals of the Arsenic Removal Technology Demonstration Program are to:
Under the program, two rounds of full-scale demonstrations of commercially ready treatment technologies were conducted at selected public water facilities across the United States. Round 2a is now under way.