GSP Annual Report
5-021.70 BUTTE
2022 (OCT. 2021 - SEP. 2022)
Single Annual Report
GSP Annual Report Information Comments
A Groundwater Extraction
Total Groundwater Extractions (AF)
370,700
Water Use Sectors
2,400
0
291,900
19,100
0
56,600
700
Rural Residential
B Groundwater Extraction Methods
Meters
2,400
Direct
5-10 %
Metered Municipal Wells
Metered connection maintained by City og Biggs and Gridley
Electrical Records
0
Land Use
367,600
Estimate
20-30 %
Land use estimates were derived from crop mapping and LandIQ survey results
Typical uncertainty for water balance calculations.
Groundwater Model
0
Other
700
Estimate
10-20 %
Rural residential groundwater extraction is estimated based on California Water Service Company's 2020 Urban Water Management Plan 2020 usage of an average per capita water use of 184 gallons per capita per day. Population data from the 2020 census was coupled with parcel data to identify total population not serviced by municipal supplies.
Uncertainties are from population estimates and gallon per capita per day estimates
C Surface Water Supply
Total Surface Water Supply (AF)
386,000
Methods Used to Determine
Diversions for local supplies are estimated based on historic State Water Resource Control Board eWRIMS (Electronic Water Rights Information Management System) data for total diversions. Surface water delivery estimates are based on historic deliveries in the area that have occurred in dry and critical years.
Water Source Types
0
0
0
386,000
0
0
0
0
D Total Water Use
Total Water Use (AF)
756,700
Methods Used to Determine
Methods used are a combination of estimates based on land use and population/ per capita water use, metered municipal water use, and estimates based on historic water rights data for dry and critical years.
Water Source Types
370,700
386,000
0
0
0
Water Use Sectors
2,400
0
659,000
38,100
0
56,600
700
Rural Residential
E Change in Storage
Method used to calculate change in storage
Change in groundwater storage was estimated based on change in measured spring-to-spring groundwater levels at each RMS well, multiplied by the area of a Thiessen polygon surrounding that RMS well (defining a representative area for each RMS well) and a representative storage coefficient of 0.1 for the Primary Aquifer.
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 |
|---|---|---|---|---|
| 5-021.70_PMA_1 | System modernization (Biggs-West Gridley Water District) | Biggs-West Gridley Water District GSA | Submitted | 0 |
| 5-021.70_PMA_7 | Multi-benefit recharge | County of Butte GSA - Butte 1 | Submitted | 0 |
| 5-021.70_PMA_16 | Improve monitoring of surface water outflows and refine water balances to improve understanding of surface water/groundwater interactions/net recharge | County of Butte GSA - Butte 1 | Submitted | 0 |
| 5-021.70_PMA_21 | Monitoring well installation | County of Butte GSA - Butte 1 | Submitted | 0 |
| 5-021.70_PMA_14 | Facilitate financing of capital improvements for on-farm irrigation systems | County of Butte GSA - Butte 1 | Submitted | 0 |
| 5-021.70_PMA_13 | Develop partnerships to implement project addressing regional water management | County of Butte GSA - Butte 1 | Submitted | 0 |
| 5-021.70_PMA_15 | Facilitate use of available recycled water that otherwise would not be used beneficially, meets all health and safety criteria, and does not harm crops or soils | County of Butte GSA - Butte 1 | Submitted | 0 |
| 5-021.70_PMA_8 | Grower education | County of Butte GSA - Butte 1 | Submitted | 0 |
| 5-021.70_PMA_9 | Installation of additional shallow monitoring wells | Western Canal Water District GSA | Submitted | 0 |
| 5-021.70_PMA_23 | Re-establish historical monitoring locations and identify new sites | County of Butte GSA - Butte 1 | Submitted | 0 |
| 5-021.70_PMA_4 | System Modernization (Western Canal Water District GSA) | Western Canal Water District GSA | Submitted | 0 |
| 5-021.70_PMA_5 | Boundary flow and primary spill measurement (Western Canal Water District) | Western Canal Water District GSA | Submitted | 0 |
| 5-021.70_PMA_18 | Increase planned conjunctive use of surface water and groundwater within the supplier service area | Western Canal Water District GSA | Submitted | 0 |
| 5-021.70_PMA_19 | Little Butte Creek Reservoir main canal bypass project | Western Canal Water District GSA | Submitted | 0 |
| 5-021.70_PMA_2 | System modernization (Butte Water District) | Butte Water District GSA - Butte | Submitted | 0 |
| 5-021.70_PMA_6 | Dual source irrigation systems | Butte Water District GSA - Butte | Submitted | 0 |
| 5-021.70_PMA_11 | Boundary flow and primary spill measurement (Butte Water District) | Butte Water District GSA - Butte | Submitted | 0 |
| 5-021.70_PMA_17 | Improved delivery service to pressurized irrigation systems | Butte Water District GSA - Butte | Submitted | 0 |
| 5-021.70_PMA_20 | M&T - Llano Seco fish screen project | Butte Water District GSA - Butte | Submitted | 0 |
| 5-021.70_PMA_22 | Parrot Phelan Diversion restoration project | Butte Water District GSA - Butte | Submitted | 0 |
| 5-021.70_PMA_24 | Removal of bottlenecks on the Sutter-Butte main canal | Butte Water District GSA - Butte | Submitted | 0 |
| 5-021.70_PMA_3 | System modernization (Richvale Irrigation District) | Richvale Irrigation District GSA | Submitted | 0 |
| 5-021.70_PMA_10 | Alternate delivery to RID Secondary via Kelleher Dam | Richvale Irrigation District GSA | Submitted | 0 |
| 5-021.70_PMA_12 | Boundary flow and primary spill measurement (Richvale Irrigation District) | Richvale Irrigation District GSA | Submitted | 0 |
| 5-021.70_PMA_25 | Shu Fly/Cherokee Project | Richvale Irrigation District GSA | Submitted | 0 |
