Parkway Dr/Alvarado Rd Trunk Sewer Phase 3 Upgrade

PROJECT TITLE: Parkway Drive and Alvarado Road Trunk Sewer Phase 3 Upgrade Project

APPLICANT’S NAME AND ADDRESS:  City of La Mesa, c/o Chris Jacobs Senior Planner, 619-667-1188, La Mesa City Hall, Community Development Department, 8130 Allison Avenue, La Mesa, CA 91942.

PROJECT LOCATION: The pipelines are located within public rights-of-way and easements along both the north and south sides of Interstate 8 in a developed section of Alvarado Canyon.

PROJECT DESCRIPTION: The Parkway Drive and Alvarado Road Trunk Sewer Phase 3 Upgrade Project involves the replacement of approximately 5,274 feet of existing sewer pipelines within the City of La Mesa with trenchless or open trench installation. The improvements would consist of open-cut trenching and trenchless methods to rehabilitate or replace existing pipeline located approximately 10-15 feet below grade, in addition to the installation of approximately 251 feet of new pipe using trenchless techniques. Where appropriate conditions exist and access is limited, existing segments of pipeline may be rehabilitated (relined) rather than replaced. The portion of the project that crosses under Department of Transportation (Caltrans) right-of-way at Interstate 8 will be constructed using trenchless techniques. All staging is proposed to occur within the work areas, or immediately adjacent, within previously developed areas (i.e., parking lots, paved roadways). Construction of Phase 3 is anticipated to require approximately 8 months to complete.

DRAFT ENVIRONMENTAL DOCUMENT: An Initial Study/Mitigated Negative Declaration (IS/MND) was prepared to evaluate environmental effects of the project. The IS/MND analyzes the following issue areas: aesthetics, agriculture and forestry resources, air quality, biological resources, cultural resources, geology and soils, greenhouse gas emissions, hazards and hazardous materials, hydrology and water quality, land use and planning, mineral resources, noise, population and housing, public services, recreation, transportation/traffic, and utilities and service systems. The IS/MND identifies potentially significant impacts that would be lessened to a level of less than significant with incorporation of mitigation measures in the following issue areas: biological resources and cultural resources.

The City has completed an Initial Environmental Study for this proposal.  It has been determined that this proposal does not have the potential to create significant adverse impacts to the environment under the California Environmental Quality Act (CEQA).  Therefore, a Mitigated Negative Declaration will be presented to the City Council for approval subsequent to public review and comment.