Fact Sheets about the Third Unregulated Contaminant Monitoring Rule (UCMR 3)

These fact sheets provide background information and contaminant list information about the third Unregulated Contaminant Monitoring Rule (UCMR 3).

• UCMR3 Fact Sheet: Searching for Emerging Contaminants in Drinking Water (pdf) (216.05 KB, May 2012, EPA 815-F-12-002)
  General background information for UCMR 3.
• UCMR 3 Fact Sheet for Assessment Monitoring (List 1 Contaminants) (pdf) (525.8 KB, May 2016, 815-F-16-003)
• UCMR 3 Fact Sheet for Screening Survey Monitoring (List 2 Contaminants) (pdf) (441.14 KB, May 2016, 815-F-16-002)
• UCMR 3 Fact Sheet for Pre-Screen Testing (List 3 Contaminants) (pdf) (211.76 KB, May 2016, 815-F-16-001)