Jones_&_Stokes_Mitigation_and_Monitoring_Plan.pdf

This is a Mitigation and Monitoring Plan document prepared by Jones & Stokes for the Napa County Flood Control and Water Conservation District related to the Napa River Flood Protection Project. The District is soliciting proposals from qualified firms to conduct a comprehensive vegetation survey of restoration areas, with data collection and analysis to be documented in a monitoring report. The survey scope includes aerial photo interpretation (6 inch or better resolution) to assess habitat types and their aerial extent, as well as ground-truthing activities across seventeen vegetation monitoring transects and approximately 190 sample plots within the survey area. The monitoring work will measure biological, chemical, and physical condition changes over time, with indicators used to gauge responses to habitat modifications and assess performance against restoration goals. Reference materials include the 2017 and 2022 vegetation monitoring reports and the Project Mitigation and Monitoring Plan, which establish baseline protocols and performance standards for the monitoring effort.

The document provides the technical framework and methodology for conducting vegetation monitoring as part of compliance with project mitigation requirements. Monitoring indicators are defined as measurable parameters documenting floristic composition and ecological conditions at both aerial and ground scales. The selected firm will have access to supporting data from previous monitoring reports and additional historical data maintained by the District to inform analysis of long-term trends in biological and chemical responses to the physical habitat modifications implemented under the Napa River Flood Protection Project.