B. Description of Proposed Boundary Modification

1. Short Description

   This BBM request proposes to modify portions of the southern and western boundary of the Kern County Groundwater Subbasin (5-22.14).
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.

   This BBM request proposes to modify portions of the southern and western boundary of the Kern County Groundwater Subbasin (5-22.14). The current boundary is mapped at the contact of the QPc or younger rocks (Q) with Miocene (M) or older units. The proposed boundary generally follows the contact between the Quaternary alluvium (Q and Qoa) and older rocks, including QPc, as mapped by Jennings (2010). There is little to no beneficial use of groundwater in the area of the proposed modification due to poor water quality, and recharge of fresh water in the subbasin originates predominately from the east (DWR, 2003; Wood & Davis, 1959). Thus, this basin boundary modification request will not negatively impact the sustainability of the Kern County Subbasin. Eliminating areas that do not function as part of the groundwater subbasin will allow for more efficient and effective management of groundwater resources and the basin boundary as proposed herein will more correctly align with the mapped edge of unconsolidated alluvial deposits.

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

   • 5-022.14 SAN JOAQUIN VALLEY - KERN COUNTY
5. Provide the proposed name for the new basin(s) or subbasin(s)

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)
   Kern-Tulare Water District	5-022.14 SAN JOAQUIN VALLEY - KERN COUNTY , 5-022.12 SAN JOAQUIN VALLEY - TULARE LAKE
   Delano-Earlimart Irrigation District	5-022.13 SAN JOAQUIN VALLEY - TULE , 5-022.14 SAN JOAQUIN VALLEY - KERN COUNTY
   Kings River Conservation District	5-022.12 SAN JOAQUIN VALLEY - TULARE LAKE , 5-022.10 SAN JOAQUIN VALLEY - PLEASANT VALLEY , 5-022.14 SAN JOAQUIN VALLEY - KERN COUNTY
   Tejon-Castac Water District	5-022.14 SAN JOAQUIN VALLEY - KERN COUNTY
   Devils Den Water District	5-022.14 SAN JOAQUIN VALLEY - KERN COUNTY , 5-022.10 SAN JOAQUIN VALLEY - PLEASANT VALLEY
   Olcese Water District	5-022.14 SAN JOAQUIN VALLEY - KERN COUNTY
   West Kern Water District	5-022.14 SAN JOAQUIN VALLEY - KERN COUNTY

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):

• WEST KERN GSA RESOLUTION.pdf (1.5MB) Uploaded on 09/26/2018 at 03:13PM
• D 1 Water Code Div 12 County Water Districts.pdf (135.1kB) Uploaded on 09/26/2018 at 03:13PM

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

Attachment(s):

• Resolution 18-03.pdf (94.5kB) Uploaded on 09/26/2018 at 03:14PM

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):

• basin mod agencies v3.pdf (1.7MB) Uploaded on 09/28/2018 at 10:42AM

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

Attachment(s):

• Kern_Subbasin_Proposed_20190118.zip (62.6kB) Uploaded on 01/18/2019 at 05:08PM

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

Attachment(s):

• KernSubbasin_AffectedAgencies.zip (307.2kB) Uploaded on 09/28/2018 at 10:38AM

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

This basin boundary modification request will not result in a direct physical change or reasonably-foreseeable indirect physical change to the environment and is thus not considered a ?Project? under CEQA.

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 section 3.3 of the attached Technical Report

Attachment(s):

• 2018-09 Kern Co. BBM_Tech Report with App.pdf (110MB) Uploaded on 09/26/2018 at 03:24PM
• 2019-01 Kern Co. BBM_Addendum.pdf (1.7MB) Uploaded on 01/04/2019 at 04:18PM

F. Notice and Consultation

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

Attachment(s):

• Affected_Agencies_FromGIS.xlsx (10kB) Uploaded on 09/26/2018 at 03:25PM

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

GIS shapefiles from DWR wer utilitzed to identify public agencies and public water systems in the vicinity of this BBM request.

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):

• 20180601-proof of mailing.pdf (87.8kB) Uploaded on 09/26/2018 at 03:26PM
• Affected agencies-systems notification letter.pdf (1.7MB) Uploaded on 09/26/2018 at 03:26PM

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.

Attachment(s):

• 1805 Board Packet _20180521092233.pdf (5.9MB) Uploaded on 09/26/2018 at 03:27PM

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.pdf (878.2kB) Uploaded on 09/26/2018 at 03:28PM
• HMWD letter for WKWD Boundary.pdf (952.4kB) Uploaded on 09/26/2018 at 03:29PM

H. Local Support

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

See files submitted in F.3 and F.5

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 files in 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.

See section 3 of attached Technical Report

Attachment(s):

• 2019-01 Kern Co. BBM_Addendum.pdf (1.7MB) Uploaded on 01/04/2019 at 04:19PM
• 2018-09 Kern Co. BBM_Tech Report with App.pdf (110MB) Uploaded on 09/26/2018 at 03:24PM

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.

Qualified maps are included in Appendix A of the Technical Report. Unit QP on the qualified maps is equivalent to QPc on the Jennings (2010) map referenced in the Technical Report.

Attachment(s):

• Appendix A.pdf (102.9MB) Uploaded on 09/26/2018 at 03:33PM
• basin_mod_CalGeol_pre1981_northwestview.pdf (3.8MB) Uploaded on 10/16/2018 at 03:24PM
• basin_mod_CalGeol_pre1981_southwestview.pdf (3.5MB) Uploaded on 10/16/2018 at 03:24PM

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.

Technical studies are included in Appendix A of the Technical Report.

Attachment(s):

• Appendix A.pdf (102.9MB) Uploaded on 09/26/2018 at 03:33PM