Giacomini Wetland Restoration Project Long-Term Monitoring Program, Part 1: Monitoring Framework

Parsons, Lorraine

This report discusses the framework for a 20-year monitoring program which will include assessment of both the project Area and nearby reference wetlands. The National Park Service (Park Service) is proposing an approximately 550-acre wetland restoration project in the southern end of Tomales Bay in Marin County, California. The Project Area historically supported a vast complex of subtidal and intertidal waters and wetlands, but these wetlands were diked during the 1900s for a dairy operation and construction of a road. Rather than try to recreate what was present historically, the Park Service is focusing on restoring natural hydrologic tidal and freshwater processes, thereby promoting restoration of hydrologic and ecological functions. Natural hydrologic processes are the cornerstone of many hydrologic and ecological functions and economic “services” associated with wetlands such as floodwater retention, flood energy dissipation, water quality improvement, and wildlife habitat that benefit both wildlife and humans. These hydrologic and ecological functions are particularly important in Tomales Bay. While it is generally perceived as pristine, this rural coastal watershed still suffers from negative anthropogenic influences such as agricultural, home and road development, leaking septic systems, mercury mining, landfills, and oil spills. As an integral component of the restoration project, the Park Service is proposing to implement a comprehensive long-term monitoring program to assess whether restoration is successful. This document outlines the proposed framework and general methodologies for our monitoring program. Monitoring protocols, including specific sampling locations and periods, will be explained in greater depth in a second volume.