US EPA Methods Update Rule: Approved, Published and Effective September 27, 2017

In the August 28, 2017 issue of the Federal Register, the Environmental Protection Agency (EPA) published the Methods Update Rule that modifies the testing procedures and methods approved for analysis and sampling under the Clean Water Act. In this update, the EPA included an additional approval for Colilert-18 for fecal coliforms in wastewater.

According to the EPA, the purpose of the rule is to provide increased flexibility to the regulated community, improve data quality, and keep current methods up-to-date with technological advances.

But what does this really mean?

For one thing, it means that testing for fecal coliforms just got a whole lot easier. Now, instead of complicated traditional methods like membrane filtration or multiple-tube fermentation requiring lots of hands-on time and dozens of steps, Colilert-18 is an EPA-approved alternative. Less than 1 minute of hands-on time and results in 18 hours? Sounds like a smart choice.

It also means that Colilert-18 has another approval to its credit. Colilert-18 was already EPA-approved for many water types, including E. coli testing of wastewater. Now, it’s also approved for the detection of fecal coliforms in wastewater.

To read more about the Method Update Rule, visit: https://www.epa.gov/cwa-methods/methods-update-rule-2017how

To see how Colilert-18 works, check out this quick video: https://www.idexx.com/fecalcoliforms

posted by Nancy Leonard

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