UCMR4 Analysis

To protect public health and provide safe drinking water, the EPA published the fourth Unregulated Contaminant Monitoring Rule (UCMR4) in the Federal Register on December 20, 2016.

McCampbell Analytical, Inc. is an approved laboratory for UCMR4 testing for the following methods:



10 Cyanotoxins



EPA 544

Total microcystin

Adda ELISA, EPA 546

Anatoxin & Cylindropermopsin                           

EPA 545

20 Additional Chemicals


Metals: Germanium & Manganese

EPA 200.8

Pesticides & pesticide byproduct

EPA 525.3


EPA 541


EPA 530

Brominated Haloacetics

EPA 552.3

Total organic carbon

SM 5310 B


EPA 300.1

View our EPA certification here.

UCMR4 sampling and analysis begins on January 2018 and all public water supplies (PWS) serving more than 10,000 people are required to provide monitoring for a 12 month period, between January 2018 and December 2020.

There will also be 800 randomly selected surface water (SW) or ground water under the direct influence of surface water (GWUDI) systems. The EPA will pay for all analytical costs associated with monitoring at small systems.

With over 25 years of experience providing our clients with superior drinking water analysis, including past UCMR requirements, MAI is an excellent choice for your UCMR4 questions and testing needs.

For more information regarding our services, please contact our Marketing Department

For more information concerning the Fourth Unregulated Contaminant Monitoring Rule, please visit the EPA Website

UCMR4 Resources

Did you miss the UCMR4 Public Stakeholder Meeting and Webinar on April 12,2017? Click Here for a summary of the questions that were asked during that meeting/webinar.

Do you have questions about UCMR4 sampling techniques? The UCMR4 Sampling Procedures presentation will provide some helpful suggestions for sample collections. View the UCMR4 Sampling Procedures presentation here...

The EPA will host webinars on November 6 and November 8, 2017 (the first for public water systems, the second for laboratories) to provide step-by-step instructions on how to use SDWARS 4.

You can find more information here...

McCampbell Analytical, Inc. is proud to announce that we are an approved lab for UCMR4 Testing. Please contact us at 1-877-252-9262, or drop us an email for more information.

For a list of approved UCMR4 methods, please click here...