Summary: Tariff revision to add Orcas Highlands water system (Department of Health ID # 133014). The addition of Orcas Highlands water system adds 117 customers on Orcas Island, in San Juan County. The Orcas Highland customers were previously served by Washington Water Service Company through a master meter and Home Owners Association. The company provides water service to approximately 17,500 customers on 197 water systems located in eight counties.