These fact sheets provide background information and contaminant list informaton about the fourth Unregulated Contaminant Monitoring Rule (UCMR 4).
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.-
UCMR 4 Basic Information Fact Sheet (PDF)(2 pp, 151 K,
December 2016,
815-F-16-007)
General background information for UCMR 4.
- UCMR 4 Fact Sheet for Assessment Monitoring - Cyanotoxins (PDF)(3 pp, 323 K, December 2016, 815-F-16-008)
- UCMR 4 Fact Sheet for Assessment Monitoring - Haloacetic Acid (HAA) (PDF)(3 pp, 335 K, December 2016, 815-F-16-006)
- UCMR 4 Fact Sheet for Assessment Monitoring - Additional Contaminants (PDF)(3 pp, 168 K, December 2016, 815-F-16-009)