The Process and Water Quality Specialists

Groundwater
  • san juan capistrano desalter
San Juan Capistrano Desalter

Southwest Water Company

The Southwest Water Company owns and operates a desalting facility to treat up to 5 mgd of highly mineralized groundwater for the City of San Juan Capistrano. The groundwater is also contaminated with iron and manganese. Trussell Technologies, Inc. has been assisting the Southwest Water Company in a project to rehabilitate the desalter. Trussell Tech diagnosed the cause of membrane fouling, identified changes in chemical feed methods to prevent clogging of pipelines with calcium carbonate, recommended changes in pretreatment to prevent future fouling, selected new membranes to replace old membranes which had ceased to meet requirements, met with CDPH and Southwest Water to discuss CDPH requirements and continues to provide support to Southwest during implementation.