Five-Year Update of the Westside IRWM Plan

The original Westside Sacramento IRWM Plan (2013) was based on the guidelines and requirements of the Department of Water Resources (DWR) in 2012. Since then, AB 1249 and SB 985 brought about new requirements, the 2013 and 2018 updates of the California Water Plan were released, and new guidance was issued about how Tribes will participate in IRWM. Additionally, AB 1249 addressed new water quality standards for nitrate, arsenic and perchlorate (hexavalent chromium) and SB 985 required the incorporation of Stormwater Resources Plans. The Westside Plan update was required to comply with all of these new requirements in order to qualify for Proposition 1 grant funds.

The Westside Sacramento Integrated Regional Water Management Plan Update 2019 was approved by the WS IRWM Coordinating Committee on January 9th 2019. The plan was approved by the DWR on June 4, 2019.

Volume I

Figures

Figure 1-1-Westide Region
Figure 1-2-Neighboring Regions

Figure 2-1-Topography
Figure 2-2 Planning Areas
Figure 2-3-Population Density
Figure 2-5-Communities and Tribes
Figure 2-6 A-Disadvantaged Communites
Figure 2-6 B-Economically Disadvantaged Areas
Figure 2-7 Land Use
Figure 2-8-Land Management Agencies
Figure 2-9-Retail Water Purveyors
Figure 2-10-Watersheds
Figure 2-11-Groundwater Basins
Figure 2-15-Habitats

Figure 3-3-Water Infrastructure
Figure 3-10-303(D) Impaired Water Bodies
Figure 3-11-FEMA Floodplains
Figure 3-12-Flood Infrastructure
Figure 3-13-FEMA Floodplains Upper Cache Creek
Figure 3-14-FEMA Floodplains Upper Putah Creek
Figure 3-15-FEMA Floodplains Valley Floor
Figure 3-17-Wildfire Risk

Figure 8-1 A-Project 1-100 Locations
Figure 8-2 B-Project 101-204 Locations

Figure 10-1-Neighboring Funding Regions

Figure ES-1-Planning Areas

Volume II