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The Arroyo Mocho Medeiros Reach Floodplain and Riparian Restoration Project is an integral component of the regional flood control and habitat restoration strategy for Arroyo Mocho in Zone 7's service area. Project objectives include flood risk reduction, sediment management, habitat enhancement, groundwater recharge, water quality improvement, and recreation/community compatibility. The project is located within a 40-acre area along the 0.7-mile Medeiros Reach of Arroyo Mocho in the City of Livermore in Alameda County, California. The Medeiros Reach of Arroyo Mocho is located between Arroyo Road and Holmes Street, south of College Avenue. The project would occur on public property owned by Zone 7.

Project Schedule: Project planning, design, and permitting will continue through 2018. Construction is anticipated during 2019 and 2020.

Project Contact: Emily Moshier, Associate Engineer (925) 454-5035

Previous Work: In 2014, Zone 7 completed improvements on the Arroyo Mocho in the Stanley Reach, the one-mile stretch of creek between Murrieta Blvd. and Isabel Ave.


Zone 7 released a draft Initial Study/Mitigated Negative Declaration for the Arroyo Mocho Medeiros Reach Floodplain and Riparian Restoration Project under the California Environmental Quality Act (CEQA) on April 25, 2018. A Mitigated Negative Declaration means that Zone 7 has studied the potential environmental impacts of the project and determined that any impacts can be avoided or mitigated to a point where no significant impacts to the environment would occur. Based on community feedback, Zone 7 extended the comment period to June 8, 2018 to receive additional community feedback, met with the City of Livermore about the project twice and also attended a site visit with approximately 20 community members.

Zone 7 values the public's input and as a result of the comments received, has decided to revise the project. Zone 7 will continue to work collaboratively with the City of Livermore and the community on the project revisions. The revised project will likely significantly reduce the excavation of materials and associated truck traffic.