Originally constructed in the 1970s, the Ortega Groundwater Treatment Plant (OGTP) was designed to treat high levels of naturally occurring iron and manganese in the groundwater pumped from four downtown-area wells. Decommissioned in the 1990s, the plant and its wells required significant rehabilitation. PCL teamed with the City of Santa Barbara to upgrade the water treatment process for groundwater pumped from the wells. The water exiting the plant supplies drinking water to the City and neighboring towns.
The project’s scope included rehabilitation of the plant’s existing filter tanks and installation of new process equipment and filter media to treat the groundwater. PCL upgraded the facility to include new electrical and controls equipment, piping, and appurtenances to enable the City to operate the plant remotely and to sample the treated water prior to its distribution into the drinking water system.
At the start of the project, PCL quickly discovered critical unforeseen clashes between the new underground piping and existing underground pipes, equipment, and electrical duct banks. In response, PCL identified each conflict and developed a 3D model of the project to reroute the pipelines before beginning construction. The use of the model enabled PCL to avoid excess costs associated with each conflict and kept the project on track.