Full Description

This article discusses the second Unregulated Contaminant Monitoring Rule (UCMR2) that will require a national sampling of water utilities to monitor for 26 high-priority unregulated contaminants, including perchlorate. The UCMR2 features an assessment monitoringcomponent that would have 3,910 publicwater systems look for 11 prioritychemicals using six well-establishedanalytical methods. The rulealso includes a screening survey that wouldhave 1,122 systems monitor for 15 othertargeted chemicals usingspecialized and less commonly usedmethods.Scheduled for promulgation by August2006, the rule would apply to communitywater systems (CWSs) and nontransient-noncommunity water systems(NTNCWSs). The article discusses the US Environmental Protection Agency's (USEPA) selection method for the 26 chemicals, the USEPA's request for a second monitoring for perchlorate, and possible additions to the final screening survey. Assessment monitoring process is described, along with the screening survey and state participation. Includes tables.

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Edition: Vol. 97 - No. 11 Published: 11/01/2005 Number of Pages: 6File Size: 1 file , 120 KB