Investing in Reliable Water Infrastructure
Central Basin East Customer Service Area
Golden State Water Company is committed to responsibly maintaining local water infrastructure so we can continue providing customers with premium water service so they never have to think twice about the quality of their water. To fulfill this commitment, we are making proactive investments to upgrade water supply and delivery facilities, creating sustainable, long-term value for the communities we serve. These forward-looking investments help prevent the costly and sometimes dangerous impacts of deferred maintenance or aging infrastructure, while ensuring a resilient water system for the future.
Armstrong Well No. 2
An example of an investment in water infrastructure in the Central Basin East CSA is the Armstrong Well No. 2 project in the Artesia system. The existing Massinger Well No. 1, which is 57 years old, has experienced sand and gravel production issues and was determined by a December 2019 consultant report to have reached the end of its useful service life. Due to limited space at the Massinger Plant, the replacement well is being constructed at the Armstrong Plant.
Drilling of the new well was completed in 2023, and once fully equipped, Armstrong Well No. 2 is anticipated to produce approximately 2,000 gallons per minute. The equipping phase is currently underway and is expected to be completed in the second quarter of 2026. The new well will provide a reliable groundwater supply and help offset purchased water needs for the Artesia water system.
Roseton Plant – New Reservoir and Pump Station
Another important project within the Central Basin East CSA is the construction of a new 0.75-million-gallon welded steel reservoir and pump station at the Roseton Plant in the Artesia system. The new pump station will feature four 60-horsepower vertical turbine pumps and motors, a motor control center, a permanent generator, SCADA upgrades, and related site improvements. These enhancements will improve system hydraulics, strengthen operational flexibility, and increase the reliability of service for customers. Construction is currently underway and is expected to be completed in the second quarter of 2026.



