Skip to main content

COVID-19 Updates: Get the latest public information related to coronavirus disease 2019 (COVID-19) at

Public Works will re-open our front counter to the public on July 6 and start providing some modified services.  Our hours will be 8 – 5, with closure from 12 – 1:30 for sanitation. Masks are mandatory in our building, and we ask that you adhere to physical distancing protocol. We will have limited services at our front counter and will not be accepting drop in meetings.  Please contact 805-781-5252 to make an appointment with staff.  Bus passes can be purchased at the Kiosk on the corner of Osos and Palm or by phone via Follow us on Twitter @SLOCountyPWD for the latest updates.

Return to the top of the page

Archived News & Announcements

< Back to Santa Maria Groundwater Basin Home Page

Potential Basin Boundary Modification Request

The Santa Maria Basin Fringe Areas – County of San Luis Obispo Groundwater Sustainability Agency (GSA) is submitting an initial notification to the California Department of Water Resources (DWR) of the GSA’s decision to explore boundary modification(s) for the Santa Maria River Valley Groundwater Basin (Bulletin 118 Basin No. 3-12; “Santa Maria Basin”).  A majority of the Santa Maria Basin is subject to the adjudication stipulated in 2005; however, there are multiple “fringe areas” in the Santa Maria Basin located outside of the adjudicated area.  All five non-adjudicated “fringe areas” within the County of San Luis Obispo will be considered for the basin boundary modification request. 

Draft Basin Boundary Modifications Released

The California Department of Water Resources (DWR) has released Draft Basin Boundary Modifications

For additional information, please visit DWR’s Basin Boundary Modification website by clicking here.

Basin Boundary Modification Request

On June 5, 2018, the County Board of Supervisors adopted a resolution to formally initiate and submit the proposed Santa Maria Basin BBMR to the California Department of Water Resources (DWR). Subsequently, a BBMR application was submitted to DWR by the Santa Maria Basin Fringe Areas – County of San Luis Obispo Groundwater Sustainability Agency (County) and is now considered complete after DWR’s initial review and posted on DWR’s SGMA portal. The public comment period will close on October 7, 2018. Please click here to view information regarding the State/County public commenting process for the BBMR and how comments can be submitted. The BBMR map can be found here.

Notice for Comment Period: Sep 7 - Oct 7, 2018.

Contact Public Works via web form, email, or call us at (805) 781-5252.