B. Description of Proposed Boundary Modification

1. Short Description

   Align local basin boundaries with existing defined adjudicated basin boundaries.
2. Type of basin boundary revision

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

   1. Valley District worked with other water agencies in our region to review and modify boundaries using the following general procedure: a) start with the established adjudicated basin boundaries or the Bulletin 118 boundaries in areas that are not adjudicated, b) adjust basin boundaries, where necessary, to close gaps between basins and/or ensure inclusion of all current agency wells and future agency wells. Sustainable groundwater management in each of the basins currently exists through the Western-San Bernardino Watermaster, the Santa Ana River Watermaster and the Basin Technical Advisory Committee (see 2016 Regional Water Management Plan)

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

   • 8-002.07 UPPER SANTA ANA VALLEY - YUCAIPA
   • 8-002.06 UPPER SANTA ANA VALLEY - BUNKER HILL
   • 8-002.04 UPPER SANTA ANA VALLEY - RIALTO-COLTON
   • 8-002.03 UPPER SANTA ANA VALLEY - RIVERSIDE-ARLINGTON
5. Provide the proposed name for the new basin(s) or subbasin(s)

   8-02.03 UPPER SANTA ANA VALLEY ? RIVERSIDE 8-02.04 UPPER SANTA ANA VALLEY - RIALTO-COLTON 8-02.06 UPPER SANTA ANA VALLEY ? SAN BERNARDINO 8-02.07 UPPER SANTA ANA VALLEY - YUCAIPA

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 Bernardino Valley Municipal Water District	8-002.04 UPPER SANTA ANA VALLEY - RIALTO-COLTON , 8-002.03 UPPER SANTA ANA VALLEY - RIVERSIDE-ARLINGTON , 8-002.07 UPPER SANTA ANA VALLEY - YUCAIPA
   Western Municipal Water District Of Riverside	8-002.03 UPPER SANTA ANA VALLEY - RIVERSIDE-ARLINGTON

2. Does this application include a combination of requests?

   Yes

   If yes, describe:

   Both Valley District and Western Municipal are requesting that the Riverside basin follow the Western San Bernardino Watermaster adjudicated boundary.

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):

• SGMA Application Response D-1.pdf (35.2kB) Uploaded on 03/22/2016 at 10:34AM

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

Attachment(s):

• Reso 1037.pdf (179.7kB) Uploaded on 03/22/2016 at 10:35AM

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):

• BasinsLtrSz.pdf (2.9MB) Uploaded on 07/15/2016 at 10:31AM
• SGMA Application Response D-3.pdf (478kB) Uploaded on 06/03/2016 at 10:40AM

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

Attachment(s):

• BoundariesV3.zip (67.4kB) Uploaded on 06/03/2016 at 10:50AM

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

Attachment(s):

• WaterAgencies.zip (125.4kB) Uploaded on 03/22/2016 at 11:21AM

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

N/A

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.

Please see metadata/documentation included in item D-4.

F. Notice and Consultation

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

Attachment(s):

• F-1.pdf (29.4kB) Uploaded on 03/22/2016 at 11:42AM

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

Basin Technical Advisory Committee (BTAC), San Bernardino Valley Municipal Water District Advisory Commission on Water Policy, San Bernardino Valley Municipal Water District (SBVMWD) Board of Directors Workshop and Meetings, Technical workshops, email, SBVMWD website, SGMA Initial Notification

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.

Attachment(s):

• F Notice and Consultation.zip (43.1MB) Uploaded on 03/22/2016 at 11:44AM

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.

BTAC 12/7/15, SBVMWD Advisory Commission 12/12/15, SBVMWD Workshop 12/8/15, SBVMWD Board Meeting 12/15/15, SBVMWD Board Meeting 2/16/16

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.

Attachment(s):

• Comments from Rialto.zip (503kB) Uploaded on 03/22/2016 at 11:46AM

G. General Existing Groundwater Management

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

Sustainable groundwater management in each of the basins currently exists through the Western-San Bernardino Watermaster, the Santa Ana River Watermaster and the Basin Technical Advisory Committee (see 2016 Regional Water Management Plan)

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

No forseeable impact

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

Water level data is used to calculate the change in groundwater storage for the Rialto-Colton Basin, the San Bernardino Basin, Riverside and Yucaipa Basin. Water levels cycle up and down demonstrating the basins are healthy. If they were not healthy, we would expect to see the storage levels trending downward.

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.

No impacts to state programs are anticipated. The boundaries for the basins included in Western-San Bernardino Judgment are already being used to manage these basins sustainably. This change will make the State?s boundaries match the existing local boundaries which should be less confusing to water agencies and other stakeholders.

H. Local Support

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

See block F.3 through F.5 for the notifications and support for these boundary modifications.

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.

Support expressed at the various public meetings where the new boundaries were displayed. City of Rialto provided some suggested modifications which they later withdrew. See email correspondence provided in block F.5.

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

N/A

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.

The proposed boundaries are from an existing court judgment and have been validated by the attached United States Geological Survey (USGS) studies and by a study in the Yucaipa Basin. See reports attached in Block L.

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):

• L Reports.zip (291.3MB) Uploaded on 05/17/2016 at 09:17AM

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

Groundwater management is currently coordinated through the Basin Technical Advisory Committee (BTAC) that was created by the IRWMP. The BTAC generates a monthly ?statement? to track its annual water management plan (see attached). BTAC recommendations are presented to the Advisory Commission that is made up of other water agencies and stakeholders before being considered by the policy Boards of Directors.