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Revisions to the Unregulated Contaminant Monitoring Regulation (UCMR 3) for Public Water Systems

This article is a correction of an article that was published on 05/02/2012. View Uncorrected Article

Unified Agenda

Revisions to the Unregulated Contaminant Monitoring Regulation (UCMR 3) for Public Water Systems

3 actions from March 3rd, 2011 to March 2012

  • March 3rd, 2011
  • May 2nd, 2011
    • NPRM Comment Period End
  • March 2012
    • Final Action
 

Tables Back to Top

Correction

In rule document 2012-9978 appearing on pages 26072-26101 in the issue of Wednesday, May 2, 2012, make the following correction:

On pages 26072-26073, the table entitled “EXHIBIT 1—APPLICABILITY OF UCMR 3 TO WATER UTILITIES BY SYSTEM TYPE AND SIZE” should read as set forth below:

Exhibit 1—Applicability of UCMR 3 to Water Utilities by System Type and Size Back to Top
System Type System size 1
Serving > 10,000 Serving ≤ 10,000
1Based on the retail population, as indicated by SDWIS/Fed on December 31, 2010.
UCMR 3 Assessment Monitoring    
CWS & NTNCWS Requires all systems to monitor for List 1 chemicals Requires 800 randomly selected systems to monitor for List 1 chemicals. EPA will pay for the analysis of samples.
TNCWS No requirements No Requirements.
UCMR 3 Screening Survey    
CWS & NTNCWS Requires all systems serving more than 100,000, and 320 randomly selected systems serving 10,001 to 100,000 to monitor for List 2 chemicals Requires 480 randomly selected systems to monitor for List 2 chemicals. EPA will pay for the analysis of samples.
TNCWS No requirements No Requirements.
UCMR 3 Pre-Screen Testing    
CWS, TNCWS & NTNCWS No requirements Requires 800 randomly selected systems to permit EPA to sample and analyze List 3 microbes. The selected systems will be served by non-disinfecting ground water wells in vulnerable areas. EPA will pay for the analysis of samples.

[FR Doc. C1-2012-9978 Filed 6-29-12; 8:45 am]

BILLING CODE 1505-01-D

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