Pursuant to Presidential Decree No. 198 (Provincial Water Utilities Act of 1973), the Buenavista Water District was formed for the purpose of the following:
Acquiring, installing, improving, maintaining and operating water supply and distribution systems for domestic, industrial, municipal and agricultural uses for residents and lands within the boundaries of such districts;
Providing, maintaining and operating wastewater collection, treatment, and disposal facilities; and
Conducting such other functions and operations incidental to water resource development, utilization and disposal within such districts, as are necessary or incidental to said purpose. (Presidential Decree No. 198, Chapter II, Sec. 5)