An inspection contractor found a chemical tank at a Washington state paper mill "not fit for continued service" 10 months before it failed in May.
Officials said Friday there is no active gas leak or plume, but that the tank is "actively in crisis" and is unable to be "secured."
The father and son told police in their statements that they bought the chemicals to build rockets.
Leafy greens such as spinach and perennial kid favorites such as strawberries and grapes held the highest levels of potentially harmful pesticide residues based on government tests.
The substance, TPO, is still permitted in the United States.
The draft's language, if left unchanged, would constitute a win for the agriculture industry and a potential setback for HHS Secretary Robert F. Kennedy Jr. and his "Make America Healthy Again" (MAHA) allies.