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Evaluating violations of drinking water regulations (PDF)

  • Author(s): Rubin, Scott J.
  • Publications: Journal - American Water Works Association
  • Issue Date: March 2013
  • Volume / Number: 105, Number 3
  • Page(s): E137-E147
  • DOI: http://dx.doi.org/10.5942/jawwa.2013.105.0024
  • Product Number: JAW_0077709
Full Text: pdf

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Abstract

US Environmental Protection Agency data were analyzed for violations by community water systems (CWSs). Several characteristics were evaluated, including size, source water, and violation type. The data show that: (1) 55% of CWSs violated at least one regulation under the Safe Drinking Water Act that involved systems serving more than 95 million people; (2) the presence of violations was no different for groundwater and surface water systems; (3) fewer than 20% of CWSs with violations exceeded an allowable level of a contaminant in drinking water; (4) smaller water systems are no more likely than larger systems, except very large systems, to violate health-related requirements; and (5) smaller CWSs appear more likely than larger systems to violate monitoring, reporting, and notification requirements. An evaluation was also conducted of four contaminants that had health-related violations by more than 1% of CWSs: total coliform, stage 1 disinfection by-products, arsenic, and lead and copper.

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