1950: On June 30, Public Law 1-12 had the water/sewer utilities under the jurisdiction of the Department of Public Works.

1952: On June 6, the First Guam Legislature forms the Public Utility Agency of Guam, combining power, water and telephone into one agency…Agency delivers 250,000 gallons per day to its customers.

1953: Agana and Agat are the two villages that have sewer systems…Complete separation from DPW in October.

1954: A monthly meter-reading service is established…4964 water customers.

1956: PUAG (tri-agency) has 169 employees.

1957: 75 percent of civilian communities have water service…Replacement of wartime steel waterlines is ongoing.

1958: Daily average consumption is 2.24 MGD.

1962: The lack of public sewer and central sewer disposal system remains the island's most serious health problem; the long-term solution is islandwide sewer and treatment plants.

1964: PUAG purchases approximately 82 percent of the water from the U.S. Navy and Air Force…One water source PUAG is looking at is Agana Springs…8306 water customers.

1965: New wells in operation Dededo, Malojloj, Ordot and Adacao…Total revenue: $681,210.56.

1967: New central sewer system is completed late in the year; areas feeding the new system are Agana, Agana Heights, Tamuning and Naval Air Station…The power authority separates itself from PUAG on March 15.

1968: Consumption of water estimated at seven (7) MGD…21 deep wells are in operation…Dededo sewer lines are ready to be connected to the central sewer system…A fee schedule for the use of the sewer system is initiated on April 1.

1969: Water rates increase from $0.50 to $0.65 per thousand gallons…Asan and Piti link into central sewer system.