B. Description of Proposed Boundary Modification

1. Short Description

   Consolidation of San Juan Bautista, Bolsa, and Hollister Subbasins and the Tres Pinos Valley Basin
2. Type of basin boundary revision

   • Jurisdiction Consolidation
3. Provide a narrative overview of the boundary modification request and how the resulting modification would affect likelihood of sustainable management.

   See attached.

   Attachment(s):

   Description of Proposed Boundary Modification (Section B) Item 3.pdf (1.9MB) Uploaded on 07/17/2018 at 05:15PM
4. List the existing basin(s)/subbasin(s) to be modified by this request

   • 3-003.02 GILROY-HOLLISTER VALLEY - BOLSA AREA
   • 3-003.03 GILROY-HOLLISTER VALLEY - HOLLISTER AREA
   • 3-003.04 GILROY-HOLLISTER VALLEY - SAN JUAN BAUTISTA AREA
   • 3-025 TRES PINOS VALLEY
5. Provide the proposed name for the new basin(s) or subbasin(s)

   North San Benito Groundwater Basin

C. Initial Notification and Combination of Requests

1. Was an initial notification submitted to the Department?

   Yes
   List of submitted initial notification for the selected basin(s)/subbasin(s).

   Local Agency	Potential Basin(s)/Subbasin(s)
   San Benito County Water District

2. Does this application include a combination of requests?

   No

D. Required Documents for All Modifications

1. A copy of the statutory or other legal authority under which the requesting agency was created with specific citations to the provisions setting forth the duties and responsibilities of the agency.

Attachment(s):

• San Benito County Water District Statutory Authority.pdf (1.3MB) Uploaded on 05/08/2018 at 11:43AM

2. A copy of the signed resolution adopted by the requesting agency formally initiating the boundary modification request process.

Attachment(s):

• RES NO 2018-05 Boundary Modification.pdf (1.2MB) Uploaded on 05/03/2018 at 11:17AM

3. A map of adequate scale (no greater than 1:24,000; e.g., 1:10,000 is not acceptable) showing the proposed modified basin boundary in relation to the existing Bulletin-118 basin boundary and the local agencies that are within or bordering the existing and proposed basin.

Attachment(s):

• North San Benito Basin Boundaries and Agencies Map.pdf (1.8MB) Uploaded on 05/07/2018 at 04:11PM

4. A GIS shapefile of the proposed modified groundwater basin boundaries. Download Existing B118 basin shape file | DWR Spatial Data Standards

Attachment(s):

• NorthSanBenitoBasinBoundaries.zip (21.2kB) Uploaded on 05/07/2018 at 04:13PM

5. A GIS shapefile of the political boundaries of any affected or adjacent local agency. Download water agency shape file

Attachment(s):

• NorthSanBenitoAgencies.zip (268.2kB) Uploaded on 05/03/2018 at 12:26PM

6. Any information, if necessary, to enable DWR to satisfy the requirements of a responsible agency pursuant to the California Environmental Quality Act.

The San Benito County Water District Groundwater Sustainability Agency (SBCWD GSA) has determined that no environmental review is required because the proposed action is exempt under the California Environmental Quality Act, or CEQA. Even if the action were considered a project under CEQA, the basin boundary modification would have no impact on the environment.

E. General Information

1. Describe the lateral boundaries of the alluvial aquifer or aquifers that form the groundwater basin and the definable bottom of the basin. The description must be in terms that are clear, definite, and sufficiently detailed to allow an authoritative map of the proposed basin boundaries to be plotted using the given description.

See attached.

Attachment(s):

• General Description (Section E).pdf (1.9MB) Uploaded on 07/17/2018 at 05:17PM

F. Notice and Consultation

1. List all local agencies and public water systems affected by the basin(s) modification request.

See attached.

Attachment(s):

• Notice and Consultation (Section F) Item 1.pdf (1.9MB) Uploaded on 07/17/2018 at 05:24PM

2. Explain the methods used to identify interested local agencies and public water systems in the affected basin(s):

See attached.

Attachment(s):

• Notice and Consultation (Section F) Item 2.pdf (91.9kB) Uploaded on 07/17/2018 at 05:24PM

3. Provide information regarding the nature of consultations with affected or interested agencies. Attach and cite any copies of correspondences with local agencies and public water systems and/or any other persons or entities consulted.

See attached.

Attachment(s):

• Notice and Consultation (Section F) Item 3.pdf (4.2MB) Uploaded on 07/17/2018 at 05:24PM

4. Provide a summary of all public meetings at which the proposed boundary modification was discussed or considered by the requesting agency. Attach and cite any copies of agendas and notices published.

See attached.

Attachment(s):

• Notice and Consultation (Section F) Item 4.pdf (1.4MB) Uploaded on 07/17/2018 at 05:24PM

5. Attach a copy of all comments regarding the proposed boundary modification received by the requesting agency and a summary of any responses made by the requesting agency.

See attached.

Attachment(s):

• Notice and Consultation (Section F) Item 5.pdf (69.9kB) Uploaded on 08/08/2018 at 11:16AM

G. General Existing Groundwater Management

1. Explain how sustainable groundwater management exists or could likely be achieved in the basin:

See attached.

Attachment(s):

• General Existing Groundwater Management (Section G) Item 1.pdf (79.6kB) Uploaded on 07/17/2018 at 05:11PM

2. Explain how the proposed boundary modification would affect the ability of adjacent groundwater basins to sustainably manage groundwater in those groundwater basins.

See attached.

Attachment(s):

• General Existing Groundwater Management (Section G) Item 2.pdf (1.9MB) Uploaded on 07/17/2018 at 05:11PM

3. Provide a historical summary of the sustainable management of groundwater levels in the proposed basin(s) or subbasin(s).

See attached.

Attachment(s):

• General Existing Groundwater Management (Section G) Item 3.pdf (80.2kB) Uploaded on 07/17/2018 at 05:11PM

4. Discuss potential impacts to state programs resulting from the proposed boundary modification, including, but not limited to, the California Statewide Groundwater Elevation Monitoring (CASGEM), Groundwater Management Plans developed pursuant to AB 3030, Groundwater Sustainability Plans developed pursuant to the Sustainable Groundwater Management Act, any applicable state or regional board plans, and other water management and land use programs.

See attached.

Attachment(s):

• General Existing Groundwater Management (Section G) Item 4.pdf (75.5kB) Uploaded on 07/17/2018 at 05:11PM

H. Local Support

1. Provide any evidence that sufficient information was provided to affected agencies and systems regarding the proposed boundary modification.

See attached.

Attachment(s):

• Local Support (Section H) Item 1.pdf (91.3kB) Uploaded on 07/17/2018 at 05:28PM

2. Provide a list of all affected agencies and affected systems that submitted comments and/or documents in support or opposition to the proposed boundary. The agency submitting their support or opposition for a boundary modification must provide a copy of a resolution formally adopted by the decision-making body of the affected agency or system or a letter signed by an executive officer or other official with appropriate delegated authority who represents the agency or system. Attach copies of the resolution and/or signed letter detailing the support or opposition submitted.

See attached.

Attachment(s):

• Local Support (Section H) Item 2.pdf (1.9MB) Uploaded on 08/08/2018 at 11:16AM

3. Provide any evidence that rebuts any opposition to the proposed boundary modification.

No opposition to the proposed boundary modifications has been received to date.

I. Hydrogeologic Conceptual Model

1. Principal aquifer units within requested basin.
2. Lateral boundaries of the proposed basin, including:
   1. Geologic features that significantly impede or impact groundwater flow.
   2. Aquifer characteristics that significantly impede or impact groundwater flow.
   3. Significant geologic and hydrologic features and conditions of the principle aquifer units, as appropriate, including information regarding the confined or unconfined nature of the aquifer, facies changes, truncation of units, the presence of faults or folds that impede groundwater flow, or other groundwater flow restricting features.
   4. Key surface water bodies, groundwater divides and significant recharge sources.
3. Recharge and discharge areas within the basin.
4. Definable bottom of the basin or subbasin.

The department may waive this requirement for an internal boundary modification if the requesting agency is able to demonstrate that the proposed boundary modification is unlikely to affect sustainable groundwater management.

See attached.

Attachment(s):

• Hydrogeologic Conceptual Model (Section I).pdf (118.5kB) Uploaded on 07/17/2018 at 05:30PM

L. Technical Studies for All Jurisdictional Modifications

1. A water management plan that covers or is in the immediate vicinity of the proposed basin or portion of the proposed basin and satisfies the requirement of Water Code sections 10753.7(a) or 10727 by attaching one of the following:
   1. An adopted groundwater management plan, a basin wide management plan, or other integrated regional water management program or plan.
   2. Management pursuant to an adjudication action.
   3. One or more technical studies that cover the relevant portion of a basin or subbasin and adjacent areas.

Attachment(s):

• Technical Studies for Jurisdictional Modifications (Section L) Item 1.pdf (86.3kB) Uploaded on 07/17/2018 at 05:34PM
• Jones & Stokes and CH2M Hill, 1998, Groundwater Management Plan for the San Benito County Part of the Gilroy-Hollister Groundwater Basin.pdf (85.6MB) Uploaded on 07/17/2018 at 05:35PM
• KennedyJenks Consultants, 2003, Groundwater Management Plan Update for the San Benito County Part of the Gilroy-Hollister Groundwater Basin.pdf (15.7MB) Uploaded on 07/17/2018 at 05:36PM
• Pajaro River Watershed Integrated Regional Water Management Plan, July 2014.pdf (8.1MB) Uploaded on 07/17/2018 at 05:36PM
• Salt and Nutrient Management Plan for Northern San Benito County, April 2014.pdf (10.3MB) Uploaded on 07/17/2018 at 05:36PM
• Eaton, USDA, Quality of Irrigation Waters of the Hollister Area, California, March 1941.pdf (5MB) Uploaded on 07/17/2018 at 05:38PM
• Luhdorff & Scalmanini, San Benito Ground-Water Investigation, April 1992.pdf (5MB) Uploaded on 07/17/2018 at 05:38PM
• Todd Engineers, Annual Groundwater Report for Water Year 2006, December 2006.pdf (3.4MB) Uploaded on 07/17/2018 at 05:38PM
• Todd Engineers, Annual Groundwater Report for Water Year 2007, December 2007.pdf (8.9MB) Uploaded on 07/17/2018 at 05:39PM
• Todd Engineers, Annual Groundwater Report for Water Year 2008, December 2008.pdf (7.7MB) Uploaded on 07/17/2018 at 05:39PM
• Todd Engineers, Annual Groundwater Report for Water Year 2009, December 2009.pdf (5.4MB) Uploaded on 07/17/2018 at 05:39PM
• Todd Engineers, Annual Groundwater Report for Water Year 2010, December 2010.pdf (5.5MB) Uploaded on 07/17/2018 at 05:39PM
• Todd Engineers, Annual Groundwater Report for Water Year 2011, December 2011.pdf (2.9MB) Uploaded on 07/17/2018 at 05:39PM
• Todd Engineers, Annual Groundwater Report for Water Year 2012, December 2012.pdf (5.8MB) Uploaded on 07/17/2018 at 05:39PM
• Todd Engineers, Annual Groundwater Report for Water Year 2013, December 2013.pdf (11.6MB) Uploaded on 07/17/2018 at 05:40PM
• Todd Groundwater, Annual Groundwater Report for Water Year 2014, December 2014.pdf (5.1MB) Uploaded on 07/17/2018 at 05:40PM
• Todd Groundwater, Annual Groundwater Report for Water Year 2015, December 2015.pdf (9.2MB) Uploaded on 07/17/2018 at 05:40PM
• Todd Groundwater, Annual Groundwater Report for Water Year 2016, December 2016.pdf (8.3MB) Uploaded on 07/17/2018 at 05:40PM
• Todd Groundwater, Annual Groundwater Report for Water Year 2017, December 2017.pdf (7.9MB) Uploaded on 07/17/2018 at 05:41PM
• Todd Engineers, Development of a Water Quality Monitoring Program, Hollister Groundwater Basin, June 2004.pdf (91.6MB) Uploaded on 07/17/2018 at 05:41PM

2. A statement of the existing and planned coordination of sustainable groundwater management activities and responsibilities where required.

The SBCWD has formed a GSA (SBCWD GSA) for the existing basins composing the proposed North San Benito Basin. The purpose of this GSA will be to comply with SGMA and to prepare and implement a GSP for the new North San Benito Basin. The SBCWD GSA is coordinating GSP preparation with the SCVWD through an MOU. A portion of the new North San Benito Basin is within the SCVWD jurisdictional area.