Water Research Foundation Provides New Resources To Help Utilities Estimate The Cost Of Removing Hexavalent Chromium From Drinking Water
Water Research Foundation (WaterRF), an internationally recognized leader in water research dedicated to advancing the science of water, is making additional resources available to help subscribers and other interested parties better understand the costs associated with removing hexavalent chromium (Cr(VI)) from drinking water. These tools come as California has just announced its draft maximum contaminant level (MCL) for Cr(VI) if 10 ppb and as the U.S. EPA is evaluating the need to develop a national MCL beyond the current MCL for total chromium.
The newest resource is a Cost Estimation Tool for Cr(VI) Removal From Groundwater. This tool will help estimate a range of potential costs to remove Cr(VI) from their water based on system-specific information about the impacted well, water quality, residuals handling, and different treatment options. It was developed as part of WaterRF Project #4450, “Impact of Water Quality on Hexavalent Chromium Removal Efficiency and Cost.” The principle investigator on the project, Issam Najm, conducted a Webcast about the tool on August 13, 2013.
Project 4450 evaluates the removal of Cr(VI) from 10 groundwater sources in an effort to understand the impact of different water quality parameters on the performance and cost of three Cr(VI) treatment technologies: Weak-Base Anion (WBA) resin, Strong-Base Anion (SBA) resin, and Reduction-Coagulation-Filtration (RCF). Based on the treatment performance, capital and annual operations and maintenance cost estimates were developed for each treatment technology. In addition, the project develops defensible capital and annual operations and maintenance cost estimates for implementing treatment systems of various sizes that can omply with a range of potential drinking water contaminant levels.
“Hexavalent Chromium presents a number of challenges to the water community in terms of treatment options and related costs associated with each,” said Robert Renner, Executive Director of WaterRF. “Project 4450 and the cost estimation tool should quickly prove to be invaluable assets to anyone wrestling with these complex issues.”
Project 4450 is but the latest example of WaterRF’s leadership in the field of Cr(VI) in drinking water. In recognition of the national interest in this issue, WaterRF has conducted and is currently supporting numerous initiatives to advance the science surrounding Cr(VI). For example, Cr(VI) challenges are being addressed in the Foundation’s Focus Area Program,which solves broadly relevant subscriber issues with a targeted, multi‐year research response. Project #4450 was funded through this program.
Other WaterRF resources related to Cr(VI) include:
- State of the Science: Hexavalent Chromium in Drinking Water
- Videos of Hexavalent Chromium Expert Symposium Presentations, February 4, 2013
- Project #2759 - Occurrence Survey of Boron and Hexavalent Chromium
- Project #4404 - Trace Level Hexavalent Chromium Occurrence and Analysis
- Project #4414 - Total Chromium and Hexavalent Chromium Occurrence Analysis
- Project #4418 - Guidelines for Hexavalent Chromium Treatment Testing
- Project #4432 - National and California Treatment Costs to Comply With Potential Hexavalent Chromium MCLs
“We understand that hexavalent chromium in drinking water is an issue that is challenging many utilities,” continued Renner. “Our job is to give the water community the tools they need to make smart decisions when it comes to treating water so they can cost-effectively remove this contaminant to meet federal and state standards and protect public health.”
About the Water Research Foundation
Founded in 1966, the Water Research Foundation is an international, 501(c)3 non-profit organization that sponsors research to enable water utilities, public health agencies and other professionals to provide safe and affordable water to the public. With more than 1,000 subscribers who provide water to 80 percent of the U.S. population, WaterRF has funded and managed more than 1,000 projects. For more information, visit www.WaterRF.org.
SOURCE: Water Research Foundation