Minimizing Impacts to Threatened and Endangered Species

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summary of construction under phase I and II includes:

Summary of Construction Under Phase I and II	What Aspects of Construction Substantially Differed From What We Expected?
What Was Done to Minimize Impacts to Threatened and Endangered Species?	Revegetation
Phase I Components - Detailed Description	Invasives Removal
Phase II Components - Detailed Description	What Did We Do to Minimize Impacts During Construction?
Repairing the Levees Necessary Before Removal	How Did We Keep the Public Informed?
Restoration in Olema Marsh	Who Made This Project Happen?
Where Did Excavated Soils From Phase I and II Go?

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(L) California black rail; (R) Federally endangered tidewater goby from Giacomini Ranch.

 

Construction in areas such as Tomales Bay, which is home to many threatened and endangered species, required careful coordination between Park Service biologists, the construction manager, and the construction contractor. During both years, the Park Service provided oversight for environmental monitoring, ensuring that impacts to wetlands and other key habitats were minimized; proper erosion control and pollution prevention measures were implemented or installed; and all work areas were surveyed and cleared of special status species prior to construction.

 

Park Service staff clear tidewater goby and other fish from drainage ditches prior to filling.

Construction contractors were required to adhere to strict timelines on when construction could start to ensure that most of the breeding season for particular special status species was complete. Construction areas had to be "cleared" or surveyed prior to start of individual construction components according to specific species protocols. Clearance surveys were either performed in-house by Park Service biologists or by contractors such as Avocet Research Associates (Point Reyes Station, CA) and Leslie Wood Consulting. In addition, for certain areas and activities, biologists needed to be on-site during construction to clear or survey for species.

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