You are here:
Evaluation of Packaged GAC Systems in Reducing DBP Formation in Small Public Water Systems
Citation:
Patterson, C., R. Khera, AND J. Adams. Evaluation of Packaged GAC Systems in Reducing DBP Formation in Small Public Water Systems. Presented at EWRI World Water Congress 2019, Pittsburgh, Pennsylvania, May 19 - 23, 2019.
Impact/Purpose:
Safe Drinking Water Act (SDWA) disinfection byproduct (DBP) violations for both Trihalomethanes (THMs) and Haloacetic Acids (HAAs) are a major compliance issue for small public water systems throughout the United States. To assist the small water utilities with historical DBP problems (e.g., elevated and seasonal TOC levels), U.S. EPA (EPA) and Calgon Carbon Corporation (CCC) demonstrated the effectiveness of packaged GAC systems in removing DBP precursors for small drinking water systems. CCC and EPA collaborated with the Mississippi Department of Health, the Kentucky Department of Environmental Protection, and Rural Water Associations to conduct pilot-scale studies in Edwards, MS and Burnside, KY.
Description:
CCC and EPA collaborated with the Mississippi Department of Health, the Kentucky Department of Environmental Protection, and Rural Water Associations to conduct pilot-scale studies in Edwards, MS and Burnside, KY. EPA and CCC coordinated the collection and analysis of samples from the mobile pilot-units for a one-year period beginning in May of 2017 and ending in April of 2018. Water samples including source water, pre-GAC water, and post-GAC water were collected for THM and HAA analysis and other selected test parameters to document the effectiveness of the process in reducing organic precursors and consequently DBP formation. This presentation will provide information on DBP issues in small drinking water systems and will document the pilot-study results.