The Van Duzen Watershed Project

Funded by the California Water Quality Control Board, Integrated Watershed Management Program

The Van Duzen Watershed Project area is called the "Lower Van Duzen River Basin", which is made up of 11 Stream Monitoring Sites.

Paul and Karen checking flow
at Wolverton Gulch

The Project Description and Monitoring Plan

Van Duzen Project Overview
by Sal Steinberg, Field Manager
(requires Microsoft PowerPoint to view)

Quality Assurance Project Plan
for the Van Duzen Watershed Project

Have a question about the Van Duzen Watershed Project?
Click here to fill out our question form.

Van Duzen Citizens Monitoring Training
October 15, 2006 (photo)

Jesse and Maria doing
a discharge measurement

Project Maps

Reports

Meetings and Events

Eleven Monitoring Sites used for sampling Turbidity and Suspended Sediment during the Rainy Season within the lower Van Duzen River Basin

Seven Primary Sites used for Year-Round Sampling of Water Quality indices within the lower basin

Catchment Area Maps

Map of all Catchment Areas
Wolverton Gulch
Yager Creek
Wilson Creek
Lower Cummings Creek
Upper Cummings Creek
Fox Creek
Main Stem Weares
Flanigan Creek
Hely Creek
Grizzly Creek
Main Stem Rainbow Bridge

Catchment Areas Associated with each Monitoring Site

Catchment areas are listed in the table below as you travel east on HWY 36

Click on the links below to view details

Wolverton Gulch
Yager Creek
Wilson Creek
Lower Cummings Creek
Upper Cummings Creek
Fox Creek
Main Stem Weares
Flanigan Creek
Hely Creek
Grizzly Creek
Main Stem Rainbow Bridge

Summary Statistics for Monitoring Site Catchment Areas

Click on the links below to view

General Summary Statistics (1)

General Summary Statistics (2)

Proportion Tree Size (UFS F)

Proportion Tree Size within 90-meter Stream Buffer Zones

Change Detection of Vegetation Loss or Gain, 1994 - 1998 (FRAP)

Proportion Land Cover/Landuse (EPA)

Proportion Geologic Types

Proportion Harvested by Silvicultural Method from 1991 through 2007 (CDF)

Proportion Harvested by Yarding Method from 1991 through 2007 (CDF)

Toward a Working TMDL:
A Watershed Plan for
The Van Duzen River Basin

Click Here to Read
The Annual Monitoring Report
October 2007

First Annual Community
Watershed Workshop Report - August 8, 2007

Karen Bromley
Water Quality Specialist

Click here to read Karen Bromley's Report

Map and Summary Statistics for
Calwater Planning Watersheds

Map of the 22 planning watersheds

General Summary Statistics (1)

General Summary Statistics (2)

Proportion Tree Size (USFS)

Proportion Tree Size within 90-meter Stream Buffer Zones

Change Detection of Vegetation Loss or Gain 1994 - 1998 (FRAP)

Change Detection of Vegetation Loss or Gain 1998 -2003 (FRAP)

Change Detection of Vegetation Loss or Gain 2003 - 2007 (USFS)

Proportion Canopy Cover (Includes Clear Cuts from 2003-2007)

Proportion Canopy Cover Within 30 meters of Streams

Proportion Land Cover/Landuse (EPA)

Proportion Geologic Types

Proportion Harvested by Silvicultural Method from 1991 through 2007 (CDF)

Proportion Harvested by Yarding Method from 1991 through 2007 (CDF)

THE PUBLIC IS INVITED

"Streams, Sediment, and Salmon"

An Evening of Lively Questions and Answers about Issues facing our local Rivers and Streams

WEDNESDAY EVENING, September 24, 2008
6:30 - 8:30 PM at the Fortuna Monday Club
Click Here for Details

March 12, 2008

The Van Duzen Watershed Project will present its Third semi-annual Stakeholders Event - March 12th at the Rhoner Recreation Hall in the Fortuna Park from 6:30 – 8:30.

The community is invited to learn about this water quality monitoring project along 10 sites on the Van Duzen River. Speakers include Dr. Paul Trichilo, Project Director; Pat Higgins, Fisheries Biologist; and Sal Steinberg, Field Manager. Topics will include turbidity, suspended sediment, road densities, total maximum daily load (TMDL), and the Citizens’ Monitoring Group. For more information contact Sal Steinberg, 845-5828

Click Here for more details