HDR Offers Updated SDWA Wall Chart

Updated and revised rules, along with secondary standards designed to address aesthetic properties of drinking water, are all part of the 12th edition of HDR's Safe Drinking Water Act wall chart.

HDR of Omaha, Neb., has distributed more than 1 million of the poster-sized charts to water utilities, schools, and professionals around the world since introducing it in1992. The chart provides an easy-to-use reference to all drinking water regulations including a detailed listing of contaminants and maximum contaminant levels, health effects, and monitoring requirements.

The latest edition includes updated information on the new Ground Water Rule as well as revisions to the Lead and Copper Rule. Also added were the National Secondary Drinking Water Standards that address the aesthetic properties of drinking water. While not federally enforceable, these standards often are referenced in addressing aesthetic effects such as appearance, taste, and staining – all topics of high interest and concern to the consuming public.

A downloadable PDF is available at the company's Web site: www.hdrinc.com

Sarah Clark, P.E., of HDR's Denver office edits the chart. She serves as chair of the American Water Works Association's Water Treatment Plant Standard committee and is a member of the Colorado Water Utility Council.

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