San Diego utility customers will see another upcharge on their water bills starting May 1 after a 5.5% rate adjustment was approved by the San Diego City Council last week. The city of San Diego said the rate hike passed last Tuesday was a pass-through charge necessary to cover a 14% increase approved by the San Diego County Water Authority in July 2024. … The SDCWA, which obtains water on behalf of 22 local agencies, said the increase would help cover infrastructure, operation and maintenance costs.