Scotts Valley Water District - 3-021 SANTA CRUZ PURISIMA FORMATION, 3-050 FELTON AREA, 3-027 SCOTTS VALLEY
Scotts Valley Water District - 3-021 SANTA CRUZ PURISIMA FORMATION, 3-050 FELTON AREA, 3-027 SCOTTS VALLEY
A. Applicant Information
Requesting Agency Information | |||
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Agency Name: | Scotts Valley Water District | ||
Address: | 2 Civic Center Drive | ||
City: | Scotts Valley | Zip: | 95066 |
Work Phone: | (831) 438-2363 | Cell Phone: | |
Email: | contact@svwd.org | Fax: | (831) 438-6235 |
Revision Request Manager Information | |||
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Person Name: | Piret Harmon | ||
Address: | 2 Civic Center Drive | ||
City: | Scotts Valley | Zip: | 95066 |
Work Phone: | 8314382363 | Cell Phone: | (650) 868-0209 |
Email: | pharmon@svwd.org | Fax: |
B. Description of Proposed Boundary Modification
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Define the extent of an expanded and renamed Santa Margarita Groundwater Basin in Santa Cruz County.
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- Scientific External
- Jurisdiction Internal
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The proposed modification defines the extent of an expanded and renamed groundwater basin that will be managed by a Groundwater Sustainability Agency (GSA) that local water agencies and the County plan to form. The new basin is defined by a series of stacked aquifers in Santa Cruz County that lie beneath the existing Scotts Valley Groundwater Basin. The expanded basin will be renamed from the Scotts Valley Groundwater Basin to the Santa Margarita Groundwater Basin. These modifications will promote sustainable groundwater management by formally recognizing an integrated and cohesive basin that is already managed by local groundwater agencies. The modification request includes both a scientific modification to define the external boundaries, and one jurisdictional modification to change internal boundaries.
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- 3-021 SANTA CRUZ PURISIMA FORMATION
- 3-050 FELTON AREA
- 3-027 SCOTTS VALLEY
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Santa Margarita Groundwater Basin
C. Initial Notification and Combination of Requests
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Yes
Local Agency Potential Basin(s)/Subbasin(s) Soquel-Aptos Groundwater Management Committee 3-026 WEST SANTA CRUZ TERRACE Scotts Valley Water District -
YesThis is NOT a combined request, however the proposed Santa Margarita Groundwater Basin and the proposed Santa Cruz Mid-County Groundwater Basin, for which a basin boundary modification request is being submitted by the Soquel-Aptos Groundwater Management Committee, will share a common boundary. It is not practical for the two requesting agencies to submit a combined request because there are a number of relatively complicated aspects to the modification requests for each basin beyond the common boundary. However, the requesting agencies coordinated on the common boundary by using the same consulting firm to prepare the modification requests. The common boundary is consistent between the two requests, and the supporting information for the common boundary is the same in the two requests. This prevents duplicate and conflicting requests as needed for DWR's consideration.
D. Required Documents for All Modifications
The attached notice of exemption was filed by Santa Cruz County for the Santa Margarita Groundwater Basin boundary modification
E. General Information
The lateral boundaries of the aquifers are described in the attached file. Additionally, we have added a description of the lateral boundary modifications that result from the jurisdictional internal basin boundary modification request. These jurisdictional boundary requests modify the basin boundary to coalesce all of the Scotts Valley Water District service district in a single basin. These jurisdictional boundary modifications are further described in the full technical report attached to item J2 (Santa Margarita Groundwater Basin Boundary Modification Request.PDF). The sections in that report titled "Description of Lateral Boundaries", and "Technical Information for Jurisdictional Modifications" include the relevant jurisdictional informaiton
F. Notice and Consultation
A Geographic Information System (GIS) was used to visualize the extent and overlap of the local agencies and public water supply systems affected by these proposed modifications. The GIS files for these service areas are provided as part of the required documents (Item D5)
G. General Existing Groundwater Management
All requests for jurisdictional modification pursuant to Section 342.4 MUST include responses to the following questions.
Designating the already managed area as a formal basin will support sustainable groundwater management by focusing the Scotts Valley Water District and adjoining District?s groundwater management responsibilities on the shared groundwater resource that supply their wells. The basin modification will clearly align the shared groundwater resources with the agencies that manage that resource. Further matching the basin to the jurisdictional boundaries will allow for a single Groundwater Sustainability Plan (GSP) to cover the shared resource, improve and streamline governance for the shared resource, and allow for easier public communication.
The proposed boundary modifications will positively affect the ability of basins adjacent to the new Santa Margarita Groundwater Basin to sustainably manage groundwater. The corner of the Scotts Valley Water District that currently lies in the existing Santa Cruz Purisima Formation Basin contains no municipal wells. Allowing a corner of the Scotts Valley Water District to remain in an adjacent basin potentially allows Scotts Valley Water District to take part in managing more than one basin, although it has no influence or interest in the basin. This jurisdictional modification ensures that the Scotts Valley Water District service area is in only one basin. Matching the basin to the jurisdictional boundaries will allow for improved and streamlined governance by the Santa Cruz Mid-County Groundwater Basin GSA, and allow easier public communication.
The County of Santa Cruz is the CASGEM reporting agency for all basins in the County, and will continue to serve that role after basin boundary modifications. The County is a member of the Santa Margarita Groundwater Basin Advisory Committee, and therefore will be coordinating its reporting function with the active management of the proposed Santa Margarita Groundwater Basin.
H. Local Support
All requests for boundary modification must include the following:
No resolutions of opposition were received. Responses to comments that were not associated with an agency resolution are included in item F5
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:
J. Technical Studies for External Scientific Modifications
Requests for a scientific modification must include a document containing information that demonstrates the extent of the aquifer. Provide the following:
The geology of the attached map comes from Brabb, 1997. The scale of the original underlying geologic map is 1:62,500, but the data used for this map were GIS files provided by USGS.
We have attached a synopsis and collation of technical studies that was developed as part of a basin definition report. (Santa_Margarita_Basin_Technical_Study_Synopsis.pdf) We have also attached earlier reports about the basin that provide technical details about the basin. Finally, we have attached our complete report justifying both the scientific and jurisdictional basin boundary modifications. This report (Santa Margarita Groundwater Basin Boundary Modification Request.PDF) brings together all of the information in this application in one report.