The project entailed the rehabilitation of some 27.3km of underground pipelines, some of which were 70 years old, the state government said in a release.
Some 23,000 residents of the city will benefit.
The Bonfil, Aquilés Serdán, Cerritos, and Camarón Sábalo sewerage collectors, as well as the Camarón-Sábalos sub-collector were also upgraded, benefitting 115,000 residents.
Both federal and state funds and resources from local water utility Jumapam financed the 228mn pesos (US$11.94mn) investments.
During his visit to Mazatlán, Ramírez also toured the site where the Miravalles potable water treatment plant is being built as part of the Picachos-Mazatlán pipeline. Construction of the 688mn pesos plant is ongoing and is expected to conclude by March next year.
PICTURED: Sinaloa governor Quirino Ordaz at the opening event. CREDIT: Gobierno del Estado de Sinaloa.