B. Description of Proposed Boundary Modification

1. Short Description

   Watershed and subwatershed hydrologic unit boundaries form the proposed perimeter of the 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.

   See Attached

   Attachment(s):

   Big valley boundary adjustment(mm).doc (47kB) Uploaded on 03/21/2016 at 08:20AM
4. List the existing basin(s)/subbasin(s) to be modified by this request

   • 5-004 BIG VALLEY
5. Provide the proposed name for the new basin(s) or subbasin(s)

   N/A

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)
   Lassen County	5-004 BIG VALLEY

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):

• CALIFORNIA CONSTITUTION.docx (26.8kB) Uploaded on 03/31/2016 at 10:50AM

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

Attachment(s):

• doc02590320160325131530.pdf (424.2kB) Uploaded on 03/31/2016 at 10:53AM

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):

• The big valley3final.pdf (12.5MB) Uploaded on 03/21/2016 at 08:25AM

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

Attachment(s):

• final_boundary - Copy.zip (35.6kB) Uploaded on 03/31/2016 at 10:57AM

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

Attachment(s):

• cnty24k09_1_shp.zip (7.4MB) Uploaded on 03/31/2016 at 10:59AM

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.

Attachment(s):

• minute order.pdf (420.4kB) Uploaded on 03/25/2016 at 01:19PM
• letterheadCAO.pdf (1.7MB) Uploaded on 03/25/2016 at 01:22PM
• The big valley3final.pdf (12.5MB) Uploaded on 03/31/2016 at 11:00AM
• watersheds.zip (82.9kB) Uploaded on 03/25/2016 at 01:12PM

F. Notice and Consultation

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

Modoc County

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

Discussed request directly with Modoc County

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.

In person consultation with Modoc County, only affected agency

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):

• minute order.pdf (420.4kB) Uploaded on 03/25/2016 at 01:19PM
• BdPckt3-15-16.pdf (11MB) Uploaded on 03/25/2016 at 01:19PM

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.

None

H. Local Support

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

Attachment(s):

• doc02590320160325131530.pdf (424.2kB) Uploaded on 03/31/2016 at 11:02AM
• BdPckt3-15-16.pdf (11MB) Uploaded on 03/31/2016 at 11:03AM

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.

N/A

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.

Bailey EH. 1966. Geology of Northern California. California Division of Mines and Geology. Bulletin 190. California Department of Water Resources. 1960. Northeastern Counties Investigation. California Department of Water Resources. Bulletin 58. California Department of Water Resources. 1964. Quality of Ground Water in California 1961-62, Part 1: Northern and Central California. California Department of Water Resources. Bulletin 66-62. California Department of Water Resources. 1965. Northeastern Counties Ground Water Investigation, Appendix C, Geology. California Department of Water Resources, Northern District. Bulletin 98. California Department of Water Resources. 1975. California's Ground Water. California Department of Water Resources. Bulletin 118. California Department of Water Resources. 1980. Ground Water Basins in California. California Department of Water Resources. Bulletin 118-80. California Department of Water Resources. 1982. Northeastern Counties Ground Water Update. California Department of Water Resources, Northern District. Office Report. California Department of Water Resources. 1992. Lassen County Water Resources Assessment Study. California Department of Water Resources, Northern District. Memorandum Report. Dickinson WR, Ingersoll RV, Grahm SA. 1979. Paleogene Sediment Dispersal and Paleotectonics in Northern California. Geological Society of America Bulletin 90:1458- 1528. Gay TE, Jr., Aune QA. 1968. Geologic Map of California, [Alturas Sheet]. California Division of Mines and Geology. Atlas. Planert M, Williams JS. 1995. Ground Water Atlas of the United States, Segment 1, California, Nevada. USGS. HA-730-B. Richardson, HE. 1964. Central Valley Project. Pit River Division. Reconnaissance Study of Allen Camp Unit. Geology and Ground-Water Resources Appendix. USBR.

Attachment(s):

• BMO technical memorandum.pdf (2.1MB) Uploaded on 03/31/2016 at 11:05AM

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.

Attachment(s):

• The big valley3final.pdf (12.5MB) Uploaded on 03/25/2016 at 01:44PM
• letterheadCAO.pdf (1.7MB) Uploaded on 03/31/2016 at 11:08AM

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.

Bailey EH. 1966. Geology of Northern California. California Division of Mines and Geology. Bulletin 190. California Department of Water Resources. 1960. Northeastern Counties Investigation. California Department of Water Resources. Bulletin 58. California Department of Water Resources. 1964. Quality of Ground Water in California 1961-62, Part 1: Northern and Central California. California Department of Water Resources. Bulletin 66-62. California Department of Water Resources. 1965. Northeastern Counties Ground Water Investigation, Appendix C, Geology. California Department of Water Resources, Northern District. Bulletin 98. California Department of Water Resources. 1975. California's Ground Water. California Department of Water Resources. Bulletin 118. California Department of Water Resources. 1980. Ground Water Basins in California. California Department of Water Resources. Bulletin 118-80. California Department of Water Resources. 1982. Northeastern Counties Ground Water Update. California Department of Water Resources, Northern District. Office Report. California Department of Water Resources. 1992. Lassen County Water Resources Assessment Study. California Department of Water Resources, Northern District. Memorandum Report. Dickinson WR, Ingersoll RV, Grahm SA. 1979. Paleogene Sediment Dispersal and Paleotectonics in Northern California. Geological Society of America Bulletin 90:1458- 1528. Gay TE, Jr., Aune QA. 1968. Geologic Map of California, [Alturas Sheet]. California Division of Mines and Geology. Atlas. Planert M, Williams JS. 1995. Ground Water Atlas of the United States, Segment 1, California, Nevada. USGS. HA-730-B. Richardson, HE. 1964. Central Valley Project. Pit River Division. Reconnaissance Study of Allen Camp Unit. Geology and Ground-Water Resources Appendix. USBR.

Attachment(s):

• 5-4.pdf (28.8kB) Uploaded on 03/25/2016 at 01:43PM
• BMO technical memorandum.pdf (2.1MB) Uploaded on 03/31/2016 at 11:05AM