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Management of the

Barker Slough Watershed

Alex Rabidoux, PE

Senior Water Resources Engineer

Background: NBA Hydrology

Vacaville

Ulatis F.C. System

Cypress Lakes Golf Course

Southeast Vacaville

Land Use

3% Recreational

Land Use

3% Urban

Grazing Land

Land Use

84% Dry or Irrigated Pasture

Grazing Land

Campbell Lake (Argyll Park, Dixon)

- Private Lake

- 37 acres

Land Use

84% Dry or Irrigated Pasture

Travis AFB

Barker Slough Pumping Plant

Why is SCWA interested?

NBA has extremely poor water quality!!

- Numerous watershed, BMP, hydrodynamic studies

- Barker Slough Watershed has the most immediate and biggest impact on the NBA...but not exclusive.

- Winter season runoff events are the main source

- Main WQ issues: Dissolved Organic Carbon (DOC), turbidity, pathogens

- Newest WQ issue: Taste & Odor

from Campbell Lake

- No BMPs for DOC

- BMP for turbidity, effectiveness?

BMPs Implemented

Where do we go from here?

BMPs are not likely to sig. improve WQ, but...

- The Barker Slough Watershed will continue to impact the NBA

- Important for SCWA to have a presence in the watershed

- Management of livestock in watershed is important (pathogens)

- Tracking annual changes in the watershed is important

- Landowner partnerships are effective for new and old BMPs

- SRCD staff already connect w/ landowners, have access to other grants, and implement BMPs elsewhere

Barker Slough Watershed Management Program

Barker Slough Watershed Mngmt. Program

Goals:

- Work with landowners to preserve existing BMPs, implement new BMPs, and help with good livestock practices

- Track annual changes in the watershed (photo monitoring, land use changes)

- Provide simple annual update/memo to SCWA

- Manage a grant program (similar to the Small Grant program)

- Hold annual meeting with landowners, SRCD, SCWA?

Funding:

- On the order of $50K/year

- Will need to see how much is needed for Admin & Grant

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