Regulations
Primary Regulation
On September 17, 1999, EPA published final revisions to the Unregulated Contaminant Monitoring Rule:
Associated Regulations
On October 29, 2002, EPA published a Final Rule to approve EPA Method 1605 to monitor the Screening Survey List 2 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.
On March 7, 2002, EPA published a Proposed Rule to approve EPA Method 1605 to monitor the Screening Survey List 2 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.
On January 11, 2001, EPA published analytical methods for the Screening Survey List 2 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.
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.
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.
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