Highline Water District bond rating upgraded
Highline Water District's bond rating recently was revised by Standard & Poor's to AAA, the highest possible rating.
Previously, Highline, which serves approximately 18,000 residential and commercial customers in Southwest King County, had a rating of AA-.
Highline, which was formed in 1946, serves parts of Burien, Normandy Park, Des Moines, Federal Way, Kent, SeaTac, Tukwila and unincorporated King County.
It was one of four water, sewer and/or drainage utilities in Washington - and only 16 nationally - to be upgraded to an AAA rating from Standard & Poor's Ra