Wastewater

Wastewater

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Overview

As part of their continued effort for emergency planning and prevention of potential sewer overflow, Crescenta Valley Water District (District) needed to install a new, emergency electrical generator at the La Granada Wastewater Lift Station. Previously, when power was lost, an emergency generator was brought on-site to keep the lift station in operation. In the length of time needed to transport the portable emergency generator, there was an increased risk of the wet well at the lift station reaching capacity and causing a sewer overflow onto the street and into the storm drain system. By installing a new permanent electrical generator, the District could prevent overflows and keep the lift station operational during power outages.

The District selected Cannon to design the new permanent emergency generator, provide a topographic survey of the project site, and complete an as-built survey of the interior of the lift station. The design included an automatic transfer switch (ATS), a structural concrete pad for the emergency electrical generator, a fence around the generator, and electrical design to connect the existing electrical panels to the new backup power system. The system design also included alarms to alert staff when the emergency electrical generator was switched into service. Cannon provided civil, structural, and electrical engineering for the project, as well as instrumentation and controls and landscape design. The landscape design included plantings that screened the generator and existing lift station from view by the adjoining residents. Cannon aided in the community outreach efforts that included perspectives of the generator and lift station, attended community meetings to help present the project to the residents, and completed the permit coordination with the City of La Canada Flintridge. Cannon was also selected to provide construction management during the construction of the new generator.

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Information

Location
La Cañada Flintridge, CA

Market
Wastewater

Service
Electrical Engineering

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