GSP Annual Report
1-004 SHASTA VALLEY
2024 (OCT. 2023 - SEP. 2024)
Single Annual Report
GSP Annual Report Information Comments
03/31/2025 8:51 AM
2024 (OCT. 2023 - SEP. 2024)
Single Annual Report
A Groundwater Extraction
Total Groundwater Extractions (AF)
41,800
Water Use Sectors
3,500
0
38,300
0
0
0
0
B Groundwater Extraction Methods
Meters
0
Electrical Records
0
Land Use
0
Groundwater Model
38,300
Estimate
60-70 %
Shasta Watershed Groundwater Model
Due to significant data gaps in observations throughout the basin and ongoing calibration efforts, we estimate the model accuracy currently falls in the range of 60-70%.
Other
3,500
Direct
70-80 %
Population data from (https://gis.water.ca.gov/app/bp-dashboard/final/) to estimate urban water demand
Data source 2010 US Census. Dataset comes from US Census based on input from residents and may not be completed by all residents. Per capita use is based on statewide average which may vary locally.
C Surface Water Supply
Total Surface Water Supply (AF)
71,200
Methods Used to Determine
The Scott Valley and Shasta Valley Watermaster District keeps records of surface water supply that are summarized in an annual report for each standard year in March.
Water Source Types
0
0
0
71,200
0
0
0
0
D Total Water Use
Total Water Use (AF)
113,000
Methods Used to Determine
Groundwater flow model output, urban population per capita water use, Watermaster records
Water Source Types
41,800
71,200
0
0
0
Water Use Sectors
3,500
0
109,500
0
0
0
0
E Change in Storage
Method used to calculate change in storage
The WY 2024 change in storage was calculated by the Shasta Watershed Groundwater Model (SWGM).
F Monitoring Network Module
G PMA Module
PMA Implementation Updates Implementation Update Export (CSV) PMA Export (CSV)
| PMA ID | PMA Name | Lead GSA | Status | # Updates during WY |
|---|---|---|---|---|
| 1-004_PMA_1 | Well Drilling Permits and County of Siskiyou Groundwater Use Restrictions | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_2 | Scott and Shasta Valley Watermaster District | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_3 | Shasta Watershed Groundwater Model (SWGM) Model Update and Isotope Results | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_4 | Novy Rice Zenkus Fish Passage Improvement Project | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_5 | Montague-Grenada Weir Modification Project | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_6 | Piezometer Transect Study Project | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_7 | City of Yreka Water Demand | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_8 | Shasta River Safe Harbor Agreement | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_9 | Enhancement of Survival Permits Authorizing Shasta River Template Safe Harbor Agreement and Associated Site Plans/ Recovery of Southern Oregon/Northern California Coast (SONCC) Coho Salmon | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_10 | Shasta River Tailwater Reduction Plan | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_11 | Upland Management | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_12 | Data Gaps and Data Collection (High Priority) | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_13 | Aquifer Characterization Analysis | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_14 | Avoiding Significant Increase of Total Net Groundwater Use from the Basin | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_15 | Conservation Easements | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_16 | Upslope Water Yield Projects | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_17 | Habitat Improvement in Shasta Watershed | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_18 | Instream Flow Leases | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_19 | Irrigation Efficiency Improvements | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_20 | Juniper Removal | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_21 | Public Outreach | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_22 | Reporting of Pump Volumes | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_23 | Voluntary Managed Land Repurposing | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_24 | Well Inventory Program | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_25 | Alternative, lower ET crops | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_26 | MAR & ILR | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_27 | Shasta Recharge Pilot Project | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_28 | Strategic Groundwater Pumping Restriction | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_29 | Reservoirs | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
| 1-004_PMA_30 | Coordinated Shasta Valley Irrigation Management | Siskiyou County Flood Control and Water Conservation District GSA - Shasta | Submitted | 0 |
