SF Invasive Spartina Project

San Francisco Estuary Invasive Spartina Project

Control Calendar (HTML, PDF) | Control Sites | Field Operations Group

Control Sites

Site Detail
Download all relevant pdf's here. View Events associated with this site at the bottom of the page.

Site Definitions

Active - Site-Specific Control Plan is being implemented (ongoing)
Inactive - the site has been included as a sub-area in another site
Complete - Non-native Spartina has been eradicated from this site (monitoring may be ongoing)

Site#	Year Started	Status	Name
011	2004	Active	Southampton Marsh Solano County
	Description
	Southampton Marsh is the largest extant marsh within the Carquinez Strait. Its roughly 175 acres are located within the 720-acre Benicia State Recreation Area, Solano County. Highway 780 borders the park on the north and east, Southampton Bay on the south, and on the west stands the residential development of Vallejo. Cyclists, runners, walkers and roller skaters use the park’s 2.5 miles of road and bike paths, which circle the perimeter of the park. The Marsh lies in the central portion of the park, and consists mostly of high marsh pickleweed/gumplant habitat, with a deep main channel and several smaller channels throughout. Cordylanthus mollis ssp. mollis (soft bird’s-beak), an endangered plant species, can be found in some of the high marsh areas of the site. Access to the marsh is restricted to park personnel and researchers to protect the C. m. mollis populations from potential damage caused by trampling. Southampton Marsh contains the only known population of Spartina patens in the San Francisco Estuary. Several large clones are scattered throughout the southern and western portions of the marsh, and multiple smaller clones are peppered throughout the area. A number of S. patens clones are adjacent to the main channel draining the marsh. There is a total of roughly 0.5 acre of S. patens at this site. Some of the areas occupied by S. patens are directly adjacent to, or interspersed with individuals or patches of Cordylanthus mollis mollis. These areas are highly sensitive, and any S. patens eradication effort here will require diligent protection efforts for the C. m. mollis. The primary treatment method at this site is aquatic herbicide, which will be applied by backpack sprayer. The partner on this site is the California Department of Parks and Recreation.

Documents


	Site Specific Plan
	06/02/05	Site Specific Plan (PDF) (DOCUMENT, 75K)

	Attachment 1: Site Maps and Photographs
	06/02/05	Photos and Maps (PDF) (DOCUMENT, 4M)

	Attachment 2: Work Program
	06/02/05	Work Program (PDF) (DOCUMENT, 191K)

	Attachment 3: Environmental Compliance
	09/20/04	Status of Cordylanthus mollis ssp. mollis within treatment areas (PDF) (DOCUMENT, 122K)
	10/01/04	Notice of Intent (PDF) (DOCUMENT, 495K)
	06/02/05	Environmental Compliance (PDF) (DOCUMENT, 351K)

	Attachment 4: Site Safety and Materials Handling
	06/10/05	Site Safety & Materials Handling (HTML) (DOCUMENT, 4K)

Events

Event Definitions

Planned - this control work event has been scheduled by the contractor or ISP partner
Complete - the specific control event for a given date(s) has been completed

The Start and End Date(s) listed below are the expected days for the Control Event based on the estimates provided by the contractor or ISP partner, and are subject to change.

The Control Program is implementing multi-year plans on the non-native Spartina infestations around the San Francisco Estuary. If the status of a Control Program event is listed as "Complete", it refers to the implementation of the plan for the posted event for a given year, and does not imply that the site has yet reached eradication. Please refer to the Site-Specific Plans for more information and a projected timeline to eradication for a given site.

Click on Start Date for details

Start Date		End Date	Type	Status
09/21/04		11/15/05	Spray	Complete