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Beverages 2016, 2(2), 10; doi:10.3390/beverages2020010

Water Quality in Selected Small Drinking Water Systems of Missouri Rural Communities

1
Department of Agriculture & Environmental Science, Lincoln University of Missouri, Jefferson City, MO 65102-0029, USA
2
Department of Chemistry and Environmental Research Center, Missouri University of Science and Technology, Rolla, MO 65409, USA
3
Department of Civil and Environmental Engineering, University of Missouri-Columbia, Columbia, MO 65211, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Dimitrios Zabaras
Received: 2 March 2016 / Revised: 5 April 2016 / Accepted: 7 April 2016 / Published: 20 April 2016
(This article belongs to the Special Issue Water)
View Full-Text   |   Download PDF [817 KB, uploaded 20 April 2016]   |  

Abstract

Small drinking water treatment systems (serving <10,000 population) in rural communities frequently encounter multiple challenges in water quality and federal regulatory compliance, especially the disinfection byproduct (DBP) regulations, due to source water variations, limited resources, and aging infrastructures. Unlike most studies on the DBP control using synthetic water in laboratory settings, this research aimed to identify the major water quality issues confronting small systems in the state of Missouri (MO), the United States of America (USA). Three small systems were selected based on source water and geographic locations. Water samples were collected quarterly from each major treatment process during the period of May 2012 to March 2013 and analyzed to identify the treatment effectiveness and potential water quality issues in each small system. Results of water quality characterization showed that the major water quality issue in the selected small systems was the low efficiency of dissolved organic carbon (DOC) removal, especially the DOC species that are considered as the DBP precursors. Most collected water samples had a higher trihalomethane formation potential (THMFP) than the United States Environmental Protection Agency (USEPA) maximum contaminant limit (MCL) (80 μg/L). Based on the analysis of the treatment efficiency in each system, several strategies for water quality improvement were recommended, and a few of which have been implemented in the small systems, leading to improved drinking water quality and compliance with the USEPA DBP regulations. This study would provide a valuable aid to small system operators and local water authority in context of water quality improvement and the regulatory compliance. View Full-Text
Keywords: water quality; drinking water; disinfection byproducts; dissolved organic carbon; water treatment water quality; drinking water; disinfection byproducts; dissolved organic carbon; water treatment
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Hua, B.; Mu, R.; Shi, H.; Inniss, E.; Yang, J. Water Quality in Selected Small Drinking Water Systems of Missouri Rural Communities. Beverages 2016, 2, 10.

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