The Wastewater Treatment Plant (WWTP) is an essential facility in community health centers (Puskesmas) to ensure the safety of health workers, patients, and the community, as well as to prevent environmental pollution. However, in several Puskesmas across Solok Regency, WWTPs have not been functioning optimally due to limited human resources and inadequate technical understanding of operation and maintenance procedures. This community service program aimed to enhance the capacity of Puskesmas sanitation officers in managing and maintaining WWTPs to ensure proper and sustainable operation in accordance with established standards. A participatory approach was implemented through training sessions, workshops, and field practices conducted at Muara Panas Community Health Center, Bukit Sundi District, Solok Regency. The activity took place in June 2025 and involved 25 sanitation officers from various Puskesmas. Evaluation was carried out using pre- and post-tests to measure improvements in participants’ knowledge and skills. The results showed an average 75% increase in participants’ knowledge after the training. In addition, the partner Puskesmas successfully developed a routine WWTP maintenance schedule and established a small monitoring team to ensure system sustainability. In conclusion, this community engagement program effectively improved the technical capacity of sanitation officers and encouraged more sustainable WWTP management in Puskesmas across Solok Regency. The program is expected to serve as a model for empowering health human resources in promoting safe and environmentally friendly healthcare management.