How does EPA define triple rinsing of equipment?
EPA defines triple rinsing in 40 CFR 165.1 (Regulations for the Acceptance of Certain Pesticides and Recommended Procedures for the Disposal and Storage of Pesticides and Pesticides Containers), as follows: “Triple rinse means the flushing of containers three times, each time using a volume of the normal diluent equal to approximately ten percent of the container’s capacity, and adding the rinse liquid to the spray mixture or disposing of it by a method prescribed for disposing of the pesticide.” The Container regulation also allows for an equivalent pressure rinse. Note that the final PFPR rule does not require triple rinsing as part of the P2 alternative, but when PFPR-related equipment is triple rinsed/pressure rinsed, the wastewater generated would be covered by the P2 alternative if it is generated from in-scope PFPR production and wastewater sources.
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