UCMR Applications

Unregulated Contaminant Monitoring Regulations

The US EPA UCMR program was developed to monitor drinking water sources for currently unregulated compounds. If occurrence and health effects are both found to be of concern, a compound may be regulated and the maximum contaminant level set.

Horizon Technology has developed turnkey solutions for some of the methods that address UCMR requirements. As new contaminants become of interest, new application notes will be developed to expand existing methods or demonstrate compliance with new methods.

Please register to download application notes.

UCMR3 - Unregulated Contaminant Monitoring Rule 3

The UCMR 3 program is slated to be in effect from 2013 – 2015 and will be monitoring for 30 contaminants not currently regulated. For more information on this Rule, visit the EPA’s website here.


AN077Recovering 1,4-Dioxane for EPA Method 522 Option 1 and UCMR 3 using the SPE-DEX 4790
AN075The Analysis of 1,4-Dioxane for EPA Method 522 and UCMR 3

UCMR 2 - Unregulated Contaminant Monitoring Rule 2

The UCMR 2 program monitored 25 contaminants using 5 analytical methods from 2008 – 2012. For more information on it, visit the EPA website here,

Pesticides and Flame Retardants

AN011Determination of Selected Pesticides and Flame Retardants in Drinking Water by SPE for UCMR 2 and EPA Method 527 using the Atlantic SPE Disk


AN012Determination of Explosives in Drinking Water by Solid Phase Extraction for UCMR2 and EPA Method 529 using the Atlantic SPE Disk

Organic Compounds

AN009Determination of Organic Compounds in Drinking Water using Atlantic C18 SPE Disks for EPA Method 525.2

UCMR 1 - Unregulated Contaminant Monitoring Rule 1

The UCMR 1 program ran from 2001 – 2001 and includes a list of 26 contaminants. For more information, visit he EPA’s website here.