SUBSEQUENT EVENT

12 Months Ended

Dec. 31, 2017

Subsequent Events [Abstract]

SUBSEQUENT EVENT

On February 6, 2018, the CPUC issued the proposed decision of the assigned administrative law judge, which applies to Cal Water and three other Class A water companies (the Joint Parties), in response to the Joint Parties’ request to set their cost of capital for 2018, 2019, and 2020. The proposed decision would lower Cal Water’s authorized return on equity from 9.43% to 8.22%. If the proposed decision were adopted without changes, Cal Water would be required to reduce its rates collected from California customers by approximately $13.0 million, which will reduce Cal Water's 2018 net income and net cash provided by operating activities. A proposed decision must be approved by the full Commission to go into effect. The Commission could modify or reject the proposed decision and will first consider the matter at its meeting on March 22, 2018.