1. Central Valley Salinity Coalition
Salt and Nitrate Sources Work Plan and Pilot Implementation Study Progress Update
August 19, 2009
Re-formatted team list.
Larry Walker Associates
Systech Water Resources, Inc.
Luhdorff & Scalmanini Consulting Engineers
NewFields Agricultural and Environmental Resources

2. Study Work Plan Outline
Study Objectives and Basic Methodology
Pilot Study Areas Descriptions
Study Methods (Area Specific)
Project Deliverables
Project Schedule
Study Tools – Attachment

3. General Methodology Flow Chart
Select Pilot Study Areas
(Yolo, Modesto, Tule River)
Identify Data Needs for Tools
(See Table 1-2)
Select Tools for Analysis
(WARMF + Groundwater Models)
Identify Salt and Nitrate Sources
(See Table 1-1)
Define Constituents of Concern
(TDS and Nitrate)
Define Project Goals and Objectives

4. General Methodology Flow Chart
Collect and Input Data into Tools
Identify Data Sources
(See Table 1-3)
Select Pilot Study Areas
(Yolo, Modesto, Tule River)
Preliminary Analysis and Data Validation
Refine Analysis
(Mass Balance, Trend and Sensitivity Analysis)
Prepare Study Report

5. WARMF Model Input/Output Flowchart

6. List of Data Sources No. Data Source 1.
WARMF Model (default and calibrated values)
10.
Bay Delta and Tributary Project 2.
DWR Land Use Survey
11.
U.S. Bureau of Reclamation 3.
NRCS Soil Survey
12.
California Irrigation Management Information System (CIMIS) 4.
National Atmospheric Deposition Program (NADP)
13.
Surface Water Ambient Monitoring Program (SWAMP) 5.
Clean Air Status and Trend Network (CASTNET)
14.
Regional Water Quality Control Board Permit Database 6.
DWR Hydrologic data
15.
USGS Hydrologic Data 7.
DWR Water Quality Data
16.
Local Irrigation Districts 8.
EPA-STORET
17.
Local Water Districts 9.
California Data Exchange Center (CDEC)

7. List of Data Sources No. Data Source 18. U.S. EPA NPDES Database 27.
Local Flood Control Districts
19.
SWRCB Groundwater Ambient Monitoring and Assessment Program (GAMA)
28.
Water Resources Information Database (WRID) – Yolo County
20.
NAQWA
29.
Hilmar SEP Database
21.
California Department of Public Health (CDPH)
30.
Geotracker
22.
UC Cooperative Extension
31.
National Land Cover Database (NLCD)
23.
County Agriculture Commissioner’s Office
32.
USGS Digital Elevation Models (DEM)
24.
Integrated Groundwater Surface Water Model (IGSM) – Yolo County Area
33.
Modesto Local MODFLOW Model
25.
USGS Central Valley Hydrologic Model (CVHM)
34.
Harter Tule River Basin MODFLOW Model
26.
USGS Water Quality Data

8. Stakeholders Call For Data
Electronic format
Surface water quality (including location data : Contact Joel Herr:
Groundwater quality (including well location and construction data: Contact Vicki Kretsinger:

9. Interim Progress Update