A half-million Aqua Pennsylvania water and wastewater customers are about to experience the impact of rising infrastructure costs.

Rates for 440,000 Aqua water customers are set to go up about 10% this week, according to an order posted Monday by the Pennsylvania Public Utility Commission. Rates for Aqua’s 40,000 wastewater customers will go up 51% or more.

The precise impact on Aqua customers is not known because the Bryn Mawr utility, a subsidiary of Essential Utilities Inc., has not yet filed its formal tariff that spells out new charges for various rate zones across Pennsylvania. The new rates could go into effect as early as Thursday.

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