Maine Water is asking the Public Utilities Commission to raise water rates for customers in its Biddeford Saco division.

The public water utility is seeking a rate change that would increase the typical water bill by 16 cents per day or about $58 a year. Currently, typical residential customers in the Biddeford Saco division pay about 53 cents per day for 125 gallons of water.

The typical yearly bill of less than $200 is well below the state average of $370 per year for residential customers, according to Maine Water.

The division serves about 16,000 customers in Biddeford, Saco, Old Orchard Beach and Scarborough.

Maine Water officials said it could take up to nine months for the PUC to review the request before a final decision is made. Maine Water also has notified customers of the request, according to the company.

The new rate was developed based on a cost-of-service study. Since the last rate increase, Maine Water has invested more than $6 million in upgrades of the system.