Triazine Network Sends Letter to EPA

Read our letter, EPA’s Response and the Triazine Network’s reply

Farmers and farm organizations involved in the Triazine Network are actively involved in an effort to fight a potential unprecedented EPA action that would have serious impacts for the use of atrazine for growers.

The Environmental Protection Agency is set to take action that would overturn a key element in the September 2020 Interim Registration Review Decision for atrazine. At issue is the aquatic ecosystem concentration equivalent level of concern also known as the CE-LOC. We have been told EPA will announce in late June a proposal to dramatically change its 2020 Registration Review decision by recommending a new ultra-low CE-LOC of 3.4 parts per billion (ppb). This action would reverse the Agency’s 2020 publshed decision to use a 15 ppb CE-LOC for atrazine, a determination that was the result of more than a decade of exhaustive scientific and regulatory review.

A CE-LOC of 3.4 ppb for atrazine would have dire consequences for corn growers. Atrazine is valued for its long-lasting weed control in conservation tillage, and no-till practices. It is a key ingredient in over 90 herbicide premix formulations.

The Triazine Network not only represents corn growers but is a broad coalition of growers of many crops across the nation who rely on atrazine and other triazine herbicides. For background on this issue, please read the following:

Triazine Network Letter sent to EPA in March 2022

EPA’s response dated June 6, 2022

The Triazine Network’s reply to EPA’s June letter sent June 13, 2022