All Projects


Unincorporated County-maintained areas and County Parks

About the Project

The County Department of Public Works and Parks Department conduct a range of routine maintenance activities to ensure that County facilities are properly functioning and operational. Primary maintenance activities include vegetation management and sediment removal along roads, trails, ditches, swales, and low impact development features; culvert repair/replacements; roadside slide and slip-out repairs; bank stabilization; and other maintenance at campgrounds, marinas, airports, flood control facilities, and bridges.
Historically, the County has developed, permitted, and conducted routine maintenance activities as individual discrete actions. The purpose of developing the Routine Maintenance Program is to provide a more comprehensive, efficient, and consistent approach to conducting and permitting routine maintenance activities.
The County recently completed a Routine Maintenance Program Manual (Maintenance Manual), which serves as the basis and project description for CEQA compliance and permit development. The Maintenance Manual identifies maintenance objectives, outcomes, and standards; describes natural resources in the Program area and specific conditions at sites where routine maintenance is anticipated; provides guidance and updated Best Management Practices to avoid and minimize potential environmental impacts during maintenance; describes countywide impact mitigation approaches; and details administration and reporting activities.
In accordance with State CEQA Guidelines, the County has conducted CEQA analysis including Notice of Preparation and Public Scoping, preparation of a Draft Environmental Impact Report (EIR), and Notice of Availability and Public Review.  The Final EIR, including Response to Comments, is available for download below.

A Tentative Order issuing Water Quality Certification and Waste Discharge Requirements for routine maintenance program activities will be considered by the San Francisco Bay Regional Water Quality Control Board at its December 16, 2020 meeting. Please see the link below for the Tentative Order Public Notice.


Horizon Water and Environment

Public Works Contact

Krzysztof Lisaj

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