Sustainable Yield. The Xxxx Coordination Committee of the Xxxx Groundwater Authority (KGA) is preparing a series of white papers addressing each of the coordination elements identified above. This white paper addresses Item c) Surface Water Supply. The information presented in this white paper provides a suggested methodology and protocols for the consistent collection of surface water supply data throughout the Xxxx Subbasin. The intent of this white paper is to advance the dialogue between participating members of the KGA on the development of a coordination agreement required under the Sustainable Groundwater Management Act (SGMA). The information presented herein is draft and subject to the input and revision from members of the Coordination Committee. xxx.xxxxxxxxxxxxxx.xxx GEI Consultants, Inc. 0000 Xxxxxxxxxx Xxxxxx, Xxxxx 000, Xxxxxxxxxxx, XX 00000 000.000.0000 fax: 000.000.0000 Water Budget Components Water budgets calculate change in groundwater storage by comparing supplies to consumptive uses and outflows. This section explains the supply and consumptive use components that need to be considered when developing a water budget for the Xxxx Subbasin. Figure 1 shows the summary equation. Supply can be calculated by documenting and adding together water supply inputs into the Xxxx Subbasin, which include: • Kern River • Minor streams • CVP imports • SWP imports • Precipitation • Groundwater inflows from small watersheds • Groundwater inflows from the Tule Subbasin • Groundwater inflows from Tulare Lake Subbasin • Produced water from oil extraction • Withdrawals from groundwater storage (groundwater extractions) Consumptive use can be calculated by documenting and adding together consumptive uses and outflows, which include: • Managed habitat evapotranspiration • Undeveloped land evapotranspiration • Soil moisture evapotranspiration • Agriculture evapotranspiration • Groundwater outflows to small watersheds • Groundwater outflows to Tule Subbasin • Groundwater outflows to Tulare Lake Subbasin • Municipal consumptive use (Municipal use minus municipal discharge) • Evaporation during energy production • Contributions to groundwater storage (deep percolation) This white paper discusses methods that can be used to measure or estimate surface water supplies. Other components of the water budget are discussed in other white papers. Surface Water Supply Data and Monitoring Protocols This section describes elements of the surface water supply data component of coordination ag...
Sustainable Yield. The Coordination Committee of the Xxxx Groundwater Authority (KGA) is preparing a series of white papers addressing each of the coordination elements identified above. This white paper addresses Item e)
Sustainable Yield. Chapter 2.3.2.6 of the Tule Subbasin Setting estimates the projected Sustainable Yield for the Tule Subbasin to be approximately 130,000 acre-ft/yr (see Table 2-4, Tule Subbasin Setting).
