B. Description of Proposed Boundary Modification

1. Short Description

   Basin boundary modification request to formally recognize the adjudicated Seaside Groundwater Basin
2. Type of basin boundary revision

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

   The proposed boundary modification is to recognize the adjudicated Seaside Groundwater Basin as a distinct basin boundary, per the Adjudication Decision ("Decision") filed with the Monterey County Superior Court on March 27, 2006 (Case No. M66343, as amended on February 7, 2007). The adjudicated Seaside Groundwater Basin boundary as defined in the Decision more accurately reflects the understanding of hydrogeologic conditions in the basin than that depicted in the existing Bulletin 118 and the Decision sets forth the Physical Solution needed for the basin's sustainable groundwater management.

   Attachment(s):
4. List of the existing basin(s)/subbasin(s) to be modified by this request

   • 3-004.10 SALINAS VALLEY - CORRAL DE TIERRA AREA
   • 3-004.08 SALINAS VALLEY - SEASIDE AREA
5. Provide the proposed name for the new basin(s) or subbasin(s)

   It is proposed that a new Bulletin 118 basin ID number of 3.4-07 be used to name the "Adjudicated Seaside Groundwater Basin" as a distinct basin boundary.

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)
   Monterey Peninsula Water Management 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):

• size: 1
• MPWMD-law.pdf (3.1MB) Uploaded on 03/07/2016 at 03:33PM

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

Attachment(s):

• size: 1
• MPWMD-Res2016-01.pdf (417.1kB) Uploaded on 03/07/2016 at 03:39PM

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):

• size: 2
• Figure 1 Map Appli.pdf (1.2MB) Uploaded on 03/31/2016 at 03:06PM
• Figure 2 Map Appli.pdf (1.8MB) Uploaded on 03/31/2016 at 03:06PM

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

Attachment(s):

• size: 1
• ModifiedBasins.zip (22.7kB) Uploaded on 03/31/2016 at 03:07PM

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

Attachment(s):

• size: 1
• AffectedAgencies.zip (89.6kB) Uploaded on 03/31/2016 at 03:07PM

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

See attached NOE form.

Attachment(s):

• size: 1
• SGB-boundary-mod-CEQA-NOE-020216.pdf (81.5kB) Uploaded on 03/08/2016 at 02:01PM

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 description document. Also see attached report: Muir, 1982, Ground Water in the Seaside Area, Monterey County California, USGS WRI 82-10.

Attachment(s):

• size: 2
• sgb-mod-request-Section_E-gen-info.pdf (94kB) Uploaded on 03/31/2016 at 03:43PM
• USGS_WRI_82-10_1982.pdf (3.2MB) Uploaded on 04/13/2016 at 10:21AM

F. Notice and Consultation

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

See attached list.

Attachment(s):

• size: 1
• sgb-mod-request-Section_F1-local-agencies(rev).pdf (170kB) Uploaded on 04/13/2016 at 01:34PM

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

See attached methods explanation.

Attachment(s):

• size: 1
• sgb-mod-request-Section_F2-methods-used.pdf (174kB) Uploaded on 03/09/2016 at 04:09PM

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 documents.

Attachment(s):

• size: 2
• WM-TAC-Item2D-11182015.pdf (613.2kB) Uploaded on 03/09/2016 at 04:36PM
• MPWMD-Resolution_2016-01-012716.pdf (3.7MB) Uploaded on 03/09/2016 at 04:18PM

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 Item 16 at following url: http://www.mpwmd.net/asd/board/boardpacket/2016/20160127/Jan-27-Meeting-Agenda.htm See posting at following url: http://www.mpwmd.net/SGMA/SeasideBasinModfcatn/SeasideBasinModificationPage.htm

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.

No comments have been received from date of posting of Initial Notification resolution on 1/22/2016 through present (3/31/2016).

H. Local Support

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

See responses to Items F.2., F.3., F.4.

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.

No affected agency comments and/or documents received from date of posting of Initial Notification resolution on 1/22/2016 through the present (3/31/2016).

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

Not applicable; no opposition comments received.

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 document attachment to Item H.1. regarding information relating to basin hydrogeologic conceptual model. It should be noted that the proposed boundary modification request to recognize the adjudicated Seaside Basin boundary is not likely to affect sustainable groundwater management as the area is under a court-ordered ramp-down in production in order to meet the basin's long-term "Natural Safe Yield", per the Physical Solution described in the Adjudication Decision.

J. Technical Studies for External Scientific Modifications

1. A qualified map that depicts the lateral boundaries of the aquifers that define the basin or subbasin.

See Figure 3 of the document attached under Item J.2. below.

2. A technical study that provides subsurface data that demonstrates the vertical thickness and relevant physical properties of the alluvial aquifer or stacked series of alluvial aquifers.

See attached document (Muir, 1982, Ground Water in the Seaside Area, Monterey County, California, US Geological Survey Water Resources Investigations 82-10).

Attachment(s):

• size: 1
• USGS_WRI_82-10_1982.pdf (3.2MB) Uploaded on 04/13/2016 at 01:45PM