Tejon-Castac Water District - 5-022.14 SAN JOAQUIN VALLEY - KERN COUNTY

Tejon-Castac Water District - 5-022.14 SAN JOAQUIN VALLEY - KERN COUNTY

A. Applicant Information

Requesting Agency Information
Agency Name: Tejon-Castac Water District
Address: PO BOX 1000
City: LEBEC Zip: 93243
Work Phone: (661) 663-4240 Cell Phone:
Email: dennisa@tejonranch.com Fax:
Revision Request Manager Information
Person Name: Dennis Atkinson
Address: PO BOX 1000
City: LEBEC Zip: 93243
Work Phone: (661) 663-4240 Cell Phone:
Email: dennisa@tejonranch.com Fax:
 

B. Description of Proposed Boundary Modification

  1. Scientific request to subdivide the Kern County Subbasin (5-22.14) based on a hydrogeologic barrier
    • Scientific Internal
  2. The boundary modification request being jointly submitted by Tejon-Castac Water District, Wheeler-Ridge Maricopa Water Storage District, and Arvin-Edison Water Storage District (the Districts) to subdivide the Kern County Subbasin into two separate subbasins, the Kern County Subbasin and the White Wolf Subbasin, is founded on a body of scientific evidence that demonstrates that the White Wolf Fault provides a significant impediment to groundwater flow. The Districts have a proven track record of sustainable groundwater management in the Subbasin, and are committed to the sustainable management of groundwater in the future, as evidenced by the Memorandum of Understanding between the Districts expressing the intent to form a joint Groundwater Sustainability Agency and thereafter develop a single Groundwater Sustainability Plan for the new White Wolf Subbasin. Further, the proposed boundary modification will not change conditions in the adjacent Kern County Subbasin or impact the ability of groundwater to be managed sustainably in that basin. A more detailed discussion of these issues is presented in Sections 2, 6, and 7 of the attached White Wolf Subbasin Technical Study.
    • 5-022.14 SAN JOAQUIN VALLEY - KERN COUNTY
  3. White Wolf Subbasin of the San Joaquin Valley Groundwater Basin

C. Initial Notification and Combination of Requests

  1. Yes
    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. No

D. Required Documents for All Modifications

Tejon-Castac Water District has determined that CEQA does not apply to this request due to statutory exemptions included under 14 CCR Section 15378(b)(5) and 15061(b)(3). More information is included in the attached Notice of Exemption, filed with Kern County on 9 March 2016.

E. General Information

See Section 2.1 of the attached White Wolf Subbasin Technical Study.

F. Notice and Consultation

The following local agencies and public water systems are affected by the basin modification request: Tejon-Castac Water District, Wheeler Ridge-Maricopa Water Storage District, Arvin-Edison Water Storage District, Tehachapi-Cummings County Water District, and Kern County.
Local agencies and public water systems in the affected basin were identified using GIS shapefiles of district boundaries (Source: U.S. Bureau of Reclamation MPGIS Service Center in coordination with the California Department of Water Resources). The criteria used for identifying affected agencies or public water systems was identifying those agencies and systems "whose jurisdictional area would, as a result of a boundary modification, include more, fewer, or different basins or subbasins than without the modification" (CWC Section 341(c) and (d)).
The other affected water districts, Wheeler Ridge-Maricopa Water Storage District and Arvin-Edison Water Storage District, have adopted resolutions of support for filing this request (attached), and the request is being jointly submitted by the three water districts. These districts were consulted early in the process and provided valuable data, reports, and local expertise that contributed to the development of the White Wolf Subbasin Technical Study (attached as part of this request). Additionally, Kern County was consulted regarding the proposed boundary modification. Representatives from Tejon-Castac Water District met with Kern County representatives on 22 January 2016 to discuss the request and received strong verbal support from the County. A letter of support from Kern County, dated 7 April 2016, is attached. The proposed boundary modification request was also discussed at the Kern Groundwater Authority Board Meeting on 27 January 2016, where it was presented to representatives of 19 water agencies in the Kern County Subbasin, as well as the public and others in attendance. No comments opposing this request were made. Meeting minutes are attached. The portion of the White Wolf Subbasin that Tehachapi-Cummings County Water District overlies is very small (i.e., less than 0.1% of the total land area) and is believed by both parties to be a product of imperfect shapefiles. Tejon-Castac Water District notified Tehachapi Cummings County Water District of the overlap on 30 March 2016 (attached). Tejon-Castac Water District received a response Tehachapi Cummings County Water District on 4 April 2016 expressing no interest in groundwater management in the Kern County Subbasin or the proposed White Wolf Subbasin. On 30 March 2016, within five days after this basin boundary modification request was deemed 'Complete' by the California Department of Water Resources, a notice letter was distributed to all identified local agencies and public water systems within the Kern County Subbasin (attached). This letter provided details regarding the procedural requirements to provide public input to the submitted boundary modification request.
The proposed boundary modification was discussed at the Tejon-Castac Water District Board of Directors meeting and the Arvin-Edison Water Storage District Board of Directors Meeting on 9 February 2016 and the Wheeler Ride-Maricopa Water Storage District Board of Directors Meeting on 10 February 2016. Additionally, the request was discussed at the Board of Directors meeting of the 19-member Kern Groundwater Authority on 27 January 2016. Agendas and minutes are attached for all public meetings where the proposed boundary modification was discussed.
Tejon-Castac Water District did not receive any comments regarding the proposed boundary modification.

H. Local Support

All requests for boundary modification must include the following:
Evidence that sufficient information was provided to Wheeler Ridge-Maricopa Water Storage District and Arvin-Edison Water Storage District is provided in the form of the attached resolutions adopted by the respective Boards of Directors for each district in support of the filing of this request. Evidence that sufficient information was provided to Kern County is provided in the form of the attached letter of support from the County, dated 7 April 2016. Evidence that sufficient information was provided to Tehachapi-Cummings County Water District is provided in the form of the attached letter from Tejon-Castac Water District regarding the proposed boundary modification, as well as the attached response from Tehachapi-Cummings County Water District expressing no interest in groundwater management in the Kern County Subbasin or the proposed White Wolf Subbasin.
Wheeler Ridge-Maricopa Water Storage District and Arvin-Edison Water Storage District have adopted resolutions in support of the filing of this request (see attached). Kern County has provided a letter of support (also attached). No other comments in support or opposition were received by Tejon-Castac Water District.
No opposition has been expressed with respect to the proposed boundary modification.

I. Hydrogeologic Conceptual Model

Requests for boundary modification, must include a document or text to a clearly defined hydrogeologic conceptual model demonstrating each of the following:
The White Wolf Subbasin is comprised of alluvial aquifers bounded on the west, south, and east by bedrock, and on the north by the hydrogeologic barrier formed by the White Wolf Fault. The primary sources of recharge to the groundwater are surface water runoff from adjacent uplands and applied water for irrigation, whereas the predominant discharge from the basin occurs through groundwater pumping for agricultural use. A detailed hydrogeologic conceptual model is presented in Sections 3 through 5 of the attached White Wolf Subbasin Technical Study, and the associated tables, figures, and appendices.

K. Technical Studies for Internal Scientific Modifications

Requests for an internal scientific modification involving a hydrogeologic barrier must include a document or text that demonstrates the presence or absence of subsurface restrictions on lateral groundwater flow. Provide the following:
See attached figure.
Since the 1970s, water levels in the White Wolf Subbasin (Subbasin) have experienced a steady recovery. Groundwater contours consistently "stack up" behind the White Wolf Fault, providing a steep gradient across the fault and demonstrating the White Wolf Fault's role as a significant impediment to groundwater flow. The results of a pumping test conducted in support of this modification request provide additional evidence of a barrier to flow associated with the White Wolf Fault. Water quality in the Subbasin is generally suitable for agricultural purposes. A detailed presentation of groundwater conditions in the Subbasin is presented Sections 3 through 5 of the attached White Wolf Subbasin Technical Study, and the associated tables, figures, and appendices.
Created on 03/16/2016 at 4:04PM, last modified on 01/02/2018 at 11:23AM and page generated on 01/21/2019 at 10:16AM