Does DOT test bath water require treatment prior to discharge if a can has burst in the bath?
If the bath is operated as a batch bath, the bath water may be discharged indirectly without treatment, even if a can has burst in the bath. Treatment is required prior to direct discharge. If the bath is operated as a continuous overflow bath, the bath water must either have some recirculation under the P2 alternative (and may be indirectly discharged without treatment) or the facility must meet zero discharge for this source. Many facilities have standard operating procedures in place for when cans burst in a DOT bath. At many facilities, these procedures include collecting the pesticide-containing wastewater for off-site disposal.
