May 19, 2020 9 a.m. to Noon csuchico.edu wildlife.ca.gov - PowerPoint PPT Presentation

parks.ca.gov May 19, 2020 9 a.m. to Noon csuchico.edu wildlife.ca.gov 5/19/2020 Vina Subbasin Stakeholder Advisory Committee

Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Precipitation ET Q in Q in Vina Subbasin Stakeholder Advisory Rimflows Diversions Committee Urban Use Interbasin Flow Pumping Stream-GW Interaction DATE TBD 5/19/2020 Vina Subbasin Stakeholder Advisory Committee

Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Vina Subbasin Stakeholder Advisory Committee Ex. Groundwater Level Data Ex. Calculated Groundwater Level by the model • Process of “turning knobs” so “observed” data better matches model “simulated” results • Can involve 5/19/2020 • Refining data inputs (ex. Diversion data) • Adjusting physical properties (ex. Hydraulic Conductivity = parameter reflecting how well water moves through the material)

Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Vina Subbasin Stakeholder Advisory Committee Calibration Key Area Wells Wells North of Vina Subbasin 28 0 Vina Subbasin 86 27 Butte Subbasin 97 19 5/19/2020 Wyandotte Creek Subbasin 18 7 South of Butte and Wyandotte Creek 86 0 8 Subbasins

DRAFT Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Vina Subbasin Stakeholder Advisory 10 5/19/2020 Committee

Multi-Completion Well: Screened 740-800 ft Vina Subbasin Stakeholder Advisory 11 5/19/2020 Committee

Multi-Completion Well: Screened 336-377 ft Vina Subbasin Stakeholder Advisory 12 5/19/2020 Committee

Vina Subbasin Stakeholder Advisory 13 5/19/2020 Committee

Vina Subbasin Stakeholder Advisory 14 5/19/2020 Committee

Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Management Vina North Area Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Management Vina Chico Area Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Management Vina South Area Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

DRAFT Vina Subbasin Stakeholder Advisory 22 5/19/2020 Committee

DRAFT Vina Subbasin Stakeholder Advisory 23 5/19/2020 Committee

Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

(Reporting of Water Budgets in GSP Includes Additional Detail) Inflows Outflows Vina Subbasin Stakeholder Advisory Precipitation Evapotranspiration Surface Water Surface Water Land and Surface Water System Inflows Outflows Committee Change in Storage Stream Deep Losses Percolation Groundwater Stream Pumping Accretions Subsurface Subsurface Outflows Exchanges Change in Inflows Change in Storage Storage 5/19/2020 Western Groundwater System Boundary (net) Basin Boundary

Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

DRAFT Vina Subbasin Stakeholder Advisory Committee 5/19/2020 Native vegetation includes grasslands and riparian.

411 TAF/yr (26.7 in) DRAFT Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

DRAFT 363 TAF/yr (23.6 in) Vina Subbasin Stakeholder Advisory Committee 5/19/2020 Native vegetation includes grasslands, riparian, and wetlands.

DRAFT 263 TAF/yr (17.1 in) Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

193 TAF/yr (12.5 in) DRAFT Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

DRAFT Vina Subbasin Stakeholder Advisory 20 TAF/yr Committee Negative values denote water 5/19/2020 moving from the groundwater system to the streams.

DRAFT Positive values denote water moving from the streams to the groundwater system. These flows may be referred to as seepage, leakage, or losses. Vina Subbasin Stakeholder Advisory Negative values denote water moving from the groundwater system to the streams. Committee These flows may be referred to as gains or accretions. 5/19/2020

DRAFT Includes Foothill Area and Butte, Los Molinos, and Wyandotte Creek Subbasins 67 TAF/yr Vina Subbasin Stakeholder Advisory Committee 5/19/2020

DRAFT Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

DRAFT Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

DRAFT Vina Subbasin Stakeholder Advisory Committee -56 TAF/yr Negative values suggest net outflows to western 5/19/2020 boundary, which could represent Sacramento River accretions and/or flows to the Corning Subbasin.

DRAFT Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

DRAFT Annual Groundwater Budget and Cumulative Change in Storage Average Decrease in GW Storage: 20 TAF/yr Vina Subbasin Stakeholder Advisory Committee 5/19/2020 Year Types: Critical (C), Dry (D), Below Normal (BN), Above Normal (AN), Wet (W)

DRAFT Annual Groundwater Pumping and Cumulative Change in Storage Average Decrease in GW Storage: 20 TAF/yr Vina Subbasin Stakeholder Advisory Committee Other key drivers include recharge from precipitation. Changes in storage are driven largely by drought conditions and corresponding Influences on other water budget components. 5/19/2020 Year Types: Critical (C), Dry (D), Below Normal (BN), Above Normal (AN), Wet (W)

DRAFT Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

DRAFT Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

DRAFT Vina Subbasin Stakeholder Advisory 5/19/2020 Committee

Future Development Based on 2030 General Plan and Parcel Zoning Current Conditions Future Conditions DRAFT Land Use Acres Land Use Acres Agricultural 83,276 Agricultural 82,766 Developed 24,819 Developed 31,459 Vina Subbasin Stakeholder Advisory Native 77,210 Native 71,081 Committee 5/19/2020

DRAFT Climate Scenarios in Other GSPs Vina Subbasin Stakeholder Advisory Committee 5/19/2020 2030CT – 2030 Central Tendency 2070CT – 2070 Central Tendency 2070DW – 2070 Drier with Extreme Warming 2070WW – 2070 Wetter with Moderate Warming

DRAFT Precipitation Reference Evapotranspiration Vina Subbasin Stakeholder Advisory Committee 5/19/2020 2030CT – 2030 Central Tendency 2070CT – 2070 Central Tendency 2070DW – 2070 Drier with Extreme Warming 2070WW – 2070 Wetter with Moderate Warming

DRAFT CC 2030CT 2070CT CC 2030CT 2070CT CC 2030CT 2070CT 400 70 30 Annual Inflows Butte Creek Big Chico Creek 350 60 25 Acre-Feet (thousands) Acre-Feet (thousands) Acre-Feet (thousands) 300 50 20 250 40 200 15 Vina Subbasin Stakeholder Advisory 30 150 10 20 100 5 10 50 Committee 0 0 0 Rock Creek Mud Creek Big Chico Little Chico Butte Creek Others Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Creek Creek CC 2030CT 2070CT CC 2030CT 2070CT CC 2030CT 2070CT 4.0 3.0 3.0 Little Chico Creek Rock Creek Mud Creek 3.5 2.5 2.5 Acre-Feet (thousands) Acre-Feet (thousands) Acre-Feet (thousands) 3.0 2.0 2.0 2.5 2.0 1.5 1.5 1.5 1.0 1.0 1.0 0.5 0.5 0.5 5/19/2020 0.0 0.0 0.0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2030CT – 2030 Central Tendency 2070CT – 2070 Central Tendency 2070DW – 2070 Drier with Extreme Warming 2070WW – 2070 Wetter with Moderate Warming