Inamorerecentevent,1.7cubicyardsofflyash,abyproductofcoalcombustion,escapedfromtheholdingareaofaTennesseepowerplant,notonlycontaminatingthelocalwatersupplybutalsodamaginghomesandcausingevacuationsofdwellings.

Please segment the words.
In a more recent event, 1.7 cubic yards of fly ash, a byproduct of coal combustion, escaped from the holding area of a Tennessee power plant, not only contaminating the local water supply but also damaging homes and causing evacuations of dwellings.