Water: Unregulated Contaminant Monitoring Program
Laws & RegulationsRegulatory InformationSafe Drinking Water ActUnregulated Contaminant Monitoring ProgramRegulationsRegulations
Primary Regulation
On September 17, 1999, EPA published final revisions to the Unregulated Contaminant Monitoring Rule:
- Federal Register Notice: Revisions to the Unregulated Contaminant Monitoring Regulation for Public Water Systems
- A Fact Sheet that describes the major provisions of the rule is available.
Associated Regulations
On October 29, 2002, EPA published a Final Rule to approve EPA Method 1605 to monitor the Screening Survey List 2 [BROKEN] microbiological contaminant Aeromonas. The rule also specifies that laboratories wishing to be approved for this method must participate in an Aeromonas proficiency testing (PT) program conducted by EPA.
On March 12, 2002, EPA published a Direct Final Rule and a Proposed Rule to establish the electronic reporting date for monitoring results.
- Federal Register Notice: Unregulated Contaminant Monitoring Regulation for Public Water Systems; Establishment of Reporting Date (Page 11071-11072)
- Federal Register Notice: Unregulated Contaminant Monitoring Regulation for Public Water Systems; Establishment of Reporting Date (Page 11043-11046)
On March 7, 2002, EPA published a Proposed Rule to approve EPA Method 1605 to monitor the Screening Survey List 2 [BROKEN] microbiological contaminant Aeromonas.
On September 4, 2001, EPA published a Direct Final Rule to amend the List 2 Rule and delay the requirements for the electronic reporting of monitoring results.
- Federal Register Notice: Unregulated Contaminant Monitoring Regulation for Public Water Systems: Analytical Methods for Perchlorate and Acetochlor; Announcement of Laboratory Approval and Performance Testing (PT) Program for the Analysis of Perchlorate; Final Rule and Proposed Rule
- Federal Register Notice: Unregulated Contaminant Monitoring Regulation for Public Water Systems; Amendment to the List 2 Rule and Partial Delay of Reporting of Monitoring Results
On January 11, 2001, EPA published analytical methods for the Screening Survey List 2 [BROKEN] contaminants, and is requiring monitoring for those contaminants in drinking water. In this notice, EPA has also modified the UCMR to improve the implementation of monitoring for both List 1 and List 2 contaminants.
- Federal Register Notice: Revisions to the Unregulated Contaminant Monitoring Regulation for Public Water Systems; Final Rule
- Federal Register Notice: Unregulated Contaminant Monitoring Regulation for Public Water Systems; Analytical Methods for List 2 Contaminants; Clarifications to the Unregulated Contaminant Monitoring Regulation
- Federal Register Notice: Unregulated Contaminant Monitoring Regulation for Public Water Systems; Analytical Methods for List 2 Contaminants and Clarifications; Proposed Rule
On March 2, 2000, published a rule specifying the approved analytical methods for perchlorate and acetochlor and includes a notice about a laboratory approval process for laboratories interested in participating in perchlorate monitoring.
- Federal Register Notice: Unregulated Contaminant Monitoring Regulation for Public Water Systems: Analytical Methods for Perchlorate and Acetochlor; Announcement of Laboratory Approval and Performance Testing (PT) Program for the Analysis of Perchlorate; Final Rule and Proposed Rule - Part 1
- Federal Register Notice: Unregulated Contaminant Monitoring Regulation for Public Water Systems: Analytical Methods for Perchlorate and Acetochlor; Announcement of Laboratory Approval and Performance Testing (PT) Program for the Analysis of Perchlorate; Final Rule and Proposed Rule - Part 2
On January 8, 1999, in advance of UCMR 1, EPA published a rule suspending the historical rounds of unregulated contaminant monitoring for small public water systems.