Dry Creek Wastewater Treatment Plant Levee Relocation

Roseville, California

Foothill Associates prepared environmental documents, secured permits and developed restoration plans for the City of Roseville Environmental Utilities Department to facilitate relocation of an existing levee. The levee relocation will provide additional floodplain along Dry Creek and provide 100-year floodplain protection for the Dry Creek Wastewater Treatment Plant.

 

Foothill Associates prepared a Mitigated Negative Declaration and Mitigation Monitoring Program in accordance with the California Environmental Quality Act (CEQA). The CEQA document was adopted by the City of Roseville. We also developed the necessary permit application for a Streambed Alteration Agreement as well as the Riparian Oak Woodland Habitat Mitigation Plan pursuant to California Department of Fish and Game (CDFG) Code, Section 1600. Mitigation measures for biological resources were included in the CEQA document and consistent with Section 1600 of the CDFG code. Foothill Associates prepared a Riparian and Oak Woodland Habitat Mitigation Plan which identifies the project impacts to riparian habitat and oak tree canopy, as well as the appropriate mitigation to offset those impacts. It also describes oak tree protection measures to be implemented during construction as well as post-construction monitoring and reporting.

 

Foothill Associates created the riparian and floodplain restoration conceptual plans and construction documents and participated in public outreach. Designs incorporated first and second terrace riparian plantings with swales and grassland revegetation to meet flood conveyance and Central Valley Flood Protection Board requirements while enhancing habitat. Following construction we monitored the restoration areas. Biologists also conducted pre-construction raptor and rare plant surveys prior to construction.

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Foothill prepared CEQA environmental documentation and obtained permits from California Department of Fish and Wildlife, Central Valley Flood Protection Board Permit, State Water Resources Control Board, and the City of Roseville.

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Designs incorporated first and second terrace riparian plantings with swales and grassland revegetation to meet flood conveyance and Central Valley Flood Protection Board requirements.

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The site was planted with oaks, grasses, wildflowers, and shrubs. Plantings in restoration areas were monitored for five years.

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Irrigation uses reclaimed water through above-ground piping with a combination of drip irrigation and rotors.

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