A gate blocks entrance to the former Ciba-Geigy chemical plant Dec. 17, 2024, in Toms River, N.J., one of America's worst toxic waste sites. (AP Photo/Wayne Parry)

Trees are reflected in the slow-moving Toms River on Feb. 21, 2023, where the former Ciba-Geigy Chemical Corp. dumped toxic waste for decades. (AP Photo/Wayne Parry)

Water sits in a lined pit at the former Ciba-Geigy chemical plant on Dec. 17, 2024, in Toms River, N.J., one of America's most notorious toxic waste sites. (AP Photo/Wayne Parry)

Water sits in a lined pit at the former Ciba-Geigy chemical plant on Dec. 17, 2024, in Toms River, N.J., one of America's most notorious toxic waste sites. (AP Photo/Wayne Parry)

A gate blocks entrance to the former Ciba-Geigy chemical plant Dec. 17, 2024, in Toms River, N.J., one of America's worst toxic waste sites. (AP Photo/Wayne Parry)

FILE - A sculpture of a grieving mother at a memorial garden in Toms River, N.J., for children who died from any cause is shown on Feb. 21, 2023. (AP Photo/Wayne Parry, File)