This question pertains to the laws of Washington State.
I just moved out of a house that had two other roommates living there. We had a oral agreement that each of us would pay 1/3 of all utility bills and this has been the case since we started living there. One of the roommates got another job, however, when he paid me for the three utility bills he prorated them to not include the dates of his traveling for his job. However, all of his stuff was in his room, in the kitchen, in the main living room with storage in the garage and elsewhere in the house. He made this decision without discussion with me or our other roommate.
In Seattle there are three utility bills one would acquire living here:
1. Seattle Public Utilities (Provides Water, Garbage, and Sewer)
2. Puget Sound Energy (Provides Heat)
3. Seattle City Light (Provides electricity)
Under Seattle Munciplal Code 21.49.100 d – Seattle City Light specifically states that residents are equally responsible for the bill regardless of their name being on the SCL account.
I have researched and found nothing online available to address my specific issue so if anyone has any comments or experience with this please let me know.

