1. CVSC: Beneficial Use and Objective Study Phase 1 Progress Report 10 June 2010

2. Task 1: Identification of Existing and Potential Beneficial Uses in the Central Valley  Developed Base Map, includes: Regional board boundaries County and city boundaries DWR Bulletin 118 groundwater basin boundaries California water (Calw221) Integrated Regional Water Management Planning Boundaries Elevation and Topography Major roads Major water supply or conveyance facilities and points of diversion Agricultural land and dairies State and local water districts Land use

3. Task 1: Identification of Existing and Potential Beneficial Uses in the Central Valley Beneficial Use Mapping Tabulated beneficial uses for water bodies from both the San Joaquin, Sacramento and Tulare Basin Plans and the Water Quality Control Plan for the San Francisco Bay / Sacramento - San Joaquin Delta Estuary Plan (2006, State Water Resources Control Board). Assigned categories (Existing, Exempt and Potential). Linked/intersect beneficial uses and water quality objectives with California Water layer (Calw221.shp). Apply ‘Tributary Rule’ for tributaries upstream (that are not assigned a beneficial use)

4. Task 1: Identification of Existing and Potential Beneficial Uses in the Central Valley Beneficial Use Mapping (cont) Met with DWR staff to discuss recent beneficial use mapping effort GIS Viewer Created shell of viewer Geodatabase In progress

5. Task 2: Identification of Existing Water Quality Objectives Basin Plans Reviewed: Sacramento River/San Joaquin Basin Plan Amendment- The Control of Salt and Boron Discharges into the Lower San Joaquin River Tulare Lake Basin Plan San Francisco Bay- Sacramento/San Joaquin Delta Estuary Plan

6. Task 2: Identification of Existing Water Quality- Sample table DescriptionHydro#MUNAGR PROINDPOWREC-1 REC-2WARMCOLDMIGR SPWN WILD Sacramento River Folsom Lake514.23 xx xx xxx x x Sacramento River Folsom Dam to Sacramento River 519.21 xx xxxxxxxxxxxx Cache Creek Clear Lake513.52 xxx x xx x x San Joaquin River Mouth of Merced River to Vernalis 535/541 xxxxx xxxx xxx x

7. Task 2: Identification of Existing Water Quality- Sample table- cont. Hydro# TDS (mg/L) EC (umhos/cm) Na (mg/L) Cl (mg/L) SO4 (mg/L) Nitrate (mg/L) Sacramento River 514.23  100 (90 percentile) ND Sacramento River 519.21  125 (90 percentile) ND Cache Creek513.52 ND San Joaquin River 535/541ND 700 (1 April- 31 August); 1000 (1 September- 31 March) ND

8. Task 2: Identification of Existing Water Quality- Sample table- cont. Boron (mg/L) Specific Conductivity (µS/cm) (SMCL) TDS (SMCL) Cl mg/L (SMCL) SO4 mg/L (SMCL) Nitrate mg/L (MCL) Sacramento River ND900500250 45 Sacramento River ND 900500250 45 Cache Creek ND 900500250 45 San Joaquin River 2.0(15 March-15 Sept.); 0.8 monthly mean (15 March-15 Sept.); 2.6 (16 Sept-14 March); 1.0 monthly mean (16 Sept-14 March); 1.3 monthly mean (critical year)

9. Additional Beneficial Use Codes Beneficial use codes included in the master table but excluded in presentation due to space constraints COMM- Commercial and Sport Fishing RARE- Rare, Threatened, or Endangered Species NAV- Navigation SHELL- Shellfish Harvesting BIOL- Biological Habitats of Special Significance

10. NPDES permits- examples NPDES permits – Why use in this study? Represent SWRCB interpretation Serve as examples based on region or implementation How the list was developed Region 5 staff proposed a list of representative NPDES permits BUO Ph I Subcommittee reviewed the list Comments were incorporated Subcommittee approved the final list - all were in agreement Use in the study Limits established in the permit will be tabulated, much like beneficial use objectives. Both applicable narrative and numerical limits will be included

11. NPDES Permit Review List DischargerCountyType Sutter Home WinerySan JoaquinNon-15 Barrel Ten Quarter Circle Land Co.San JoaquinNon-15 Reclamation City of LoyaltonSierraNon-15 Reclamation City of LathropSan JoaquinNon-15 Reclamation City of LodiSan JoaquinLand Disposal Musco Family Olive Co. and the Studley Group San JoaquinLand Disposal

12. NPDES Permit Review List (cont.) DischargerCountyType City of TracySan JoaquinDelta Discharger City of LodiSan JoaquinDelta Discharger City of MantecaSan JoaquinDelta Discharger Olivehurst PUDYuba Feather River/ Yuba River Discharger Linda County Water DistrictYuba and Sutter Feather River/Yuba River Discharger City of Yuba CitySutterFeather River/Yuba River Discharger

13. NPDES Permit Review List (cont.) DischargerCountyType UC DavisYoloYolo County Discharger City of WoodlandYoloYolo County Discharger Chico Urban AreaButteSeptic Tanks City of Bakersfield Wastewater Treatment KernTulare Lake J.G. Boswell, Corcoran Tomato Processing KingsTulare Lake

14. NPDES Permit Review List (cont.) DischargerCountyType Veldhuis North DairyMercedCAFO (dairies) Hilmar CheeseMercedCAFO (dairies) Stockton MS4 Stormwater PermitSan JoaquinMisc City of FresnoFresnoMisc Grassland Bypass ProjectFresno and San Joaquin Misc

15. Task 3: Literature Search of Water Quality Criteria California  UC Davis  State Recycled Water Policy National  Colorado River  Colorado Basins International  Australia  Middle East  United Nations Food and Agricultural Organization (FAO)

16. Discussion