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EPA Issues Final 2016 NPDES Pesticide General Permit
On November 1, 2016, the U.S. Environmental Protection Agency (EPA) published its Final National Pollutant Discharge Elimination System (NPDES) Pesticide General Permit for Point Source Discharges from the Application of Pesticides in the Federal Register, which regulates discharges to waters of the United States from the application of biological pesticides and chemical pesticides that leave a residue. 81 Fed. Reg. 75816. The 2016 NPDES Pesticide General Permit (PGP) replaces the 2011 PGP, which expired on October 31, 2016. The PGP applies to the following geographic areas where EPA serves as the NPDES permitting authority:
Similar to the 2011 PGP, the 2016 PGP contains additional permit conditions and modifications that some states and tribes added through the Clean Water Act (CWA) Section 401 certification process and/or the Coastal Zone Management Act process. Part 9 of the 2016 PGP provides a detailed breakdown of any additional requirements. Forty-six states have delegated authority to administer state versions of the PGP. The majority of states recently revised and reissued their respective state PGPs for another five-year permit cycle.
The 2016 PGP applies to the same pesticide use patterns covered by the 2011 PGP, which are:
The 2016 PGP requirements are nearly identical to those in the 2011 PGP, with the exception of the following two updates included in the 2016 PGP:
The 2016 PGP permit conditions went into effect on October 31, 2016, and the PGP will expire in five years on October 31, 2021. 2016 PGP coverage is automatic through January 12, 2017, without the submission of an NOI, but pesticide Operators (i.e., pesticide applicators) must comply with all 2016 PGP conditions as of October 31, 2016. For any discharges commencing on or before January 12, 2017, that will continue after this date, a decision-maker must submit an NOI no later than January 2, 2017, to ensure PGP coverage, and for any discharges subsequent to January 12, 2017, an NOI submission is required no later than 10 days before the first discharge. Table 1-1 at Part 1.2.3 outlines which decision-makers must submit NOIs based on the particular pesticide use pattern, location (i.e., if discharging to a designated Outstanding National Resource Water), and acreage thresholds. Table 1-2 at Part 1.2.3 provides applicable NOI submission deadlines, including grace periods for NOI filing for discharges in response to a Declared Pest Emergency.
EPA’s webpage for pesticide NPDES permitting includes links to the final 2016 PGP, a related fact sheet, the permitting decision tool, and information on eNOI and ESA procedures.
Although the 2016 PGP largely mirrors the 2011 version of the permit, it will be important for decision-makers to familiarize themselves with the new electronic reporting requirements (Part 7.8). EPA’s eNOI system is publicly searchable and could subject PGP permit holders to additional scrutiny by citizens and advocacy groups concerned about potential environmental and public health implications of pesticide applications in their areas. Decision-makers should consult EPA’s PGP NMFS Listed Resources of Concern -- Interactive Mapping Tool and the Alternative PGP Sources of Information for NMFS Listed Resources of Concern to determine where discharges may overlap with these areas and trigger additional permit conditions.