high- and medium priority basins be sustainably managed. DWR designated the Coastal Plain of Orange County Groundwater Basin (“Basin 8- 1” or “Basin”) as a medium-priority basin, primarily due to heavy reliance on the Basin’s groundwater as a source of water supply ( Figure 6-1 ). All basins subject to SGMA are required to prepare a Groundwater Sustainability Plan (GSP) or an alternative to the GSP in accordance with the statutes.
Figure 6 - 1. Coastal Plain of Orange County Groundwater Basin, Basin 8-1 (Basin 8-1 Alternative, 2017)
In 2016, OCWD led the development of an alternative plan to meet SGMA compliance (Basin 8- 1 Alternative) in collaboration with IRWD and the City of La Habra. The Basin 8-1 Alternative was submitted to DWR in 2017 by OCWD, IRWD and the City of La Habra and approved as a SGMA- compliant alternative plan for the Basin. As part of the alternative plan, four Management Areas were designated including OCWD, Santa Ana Canyon (managed by OCWD), La Habra-Brea, and South East ( Figure 6-2 ). IRWD manages the South East Management Area and prepared the South East Management Area section of the GSP. There has been no groundwater
6 - 6
IRWD – 2025 Urban Water Management Plan
Powered by FlippingBook