creation of water district 140 background information – what brought us to this point in water...
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Creation ofWater District 140
Creation ofWater District 140
Background Information – Background Information –
What Brought Us to This Point In What Brought Us to This Point In Water Distribution, and Why Do We Water Distribution, and Why Do We
We Need to Go Further?We Need to Go Further?
Presentation byPresentation by
Dave Tuthill, Administrator, Dave Tuthill, Administrator,
Water Management DivisionWater Management Division
Idaho Department of Water ResourcesIdaho Department of Water Resources
IDWR StaffIDWR Staff
• Tim Luke, Water Distribution Section Tim Luke, Water Distribution Section SupervisorSupervisor
• Allen Merritt, Manager, Southern Allen Merritt, Manager, Southern Regional Office in Twin FallsRegional Office in Twin Falls
• Corbin Knowles, HydrologistCorbin Knowles, Hydrologist
• Troy Winward, Engineer in TrainingTroy Winward, Engineer in Training
Discussion Items, Informational Meeting in Burley, November 29, 2005
• In the beginning…In the beginning…
• Status of the SRBAStatus of the SRBA
• Statutory Framework Statutory Framework
• Basin 45 IssuesBasin 45 Issues
• Standards for creating a new Water DistrictStandards for creating a new Water District
• Thoughts for the FutureThoughts for the Future
Mrs. AdamsMrs. AdamsIrrigation of Irrigation of
50 acres50 acres1.0 cfs1.0 cfs
6/16/18876/16/1887
Mr. BlackMr. BlackIrrigation ofIrrigation of
60 acres60 acres1.2 cfs1.2 cfs
6/17/18876/17/1887
Mrs. ClarkMrs. ClarkIrrigation of Irrigation of 500 acres500 acres10.0 cfs10.0 cfs
6/16/19826/16/1982
WellWell
Resolution:• Adjudicate• Establish water districts for distribution
Status of the SRBAStatus of the SRBA
19,036
118,392
8,293
Decreed
Submitted, AwaitingDecree
Being Readied forSubmittal
SRBA Summaryas of October 11, 2005
SRBA Summaryas of October 11, 2005
Counts of Water Rights
I
II
IIII
II
III
I
IIIII
37
37
63
63
65
65I II
03
02
01- II
01- I
77
6337
51
81
65
55
34
36
83
35
29
47
72
67
75
31 21
57
85
27
79
43
74
61
32
45
25
33
22
82
23
73
86
84
78
69
71
24
41
SRBA Investigation Start Datesfor Director's Reports for
Irrigation and Other Claims
In Progress
Preliminary Findings Distributed
Completed
Snake River Basin Adjudication
Director’s ReportsFor Irrigation and Other Rights
In ProgressPreliminary Findings DistributedCompleted
Establishment of Water Districts
Establishment of Water Districts
• 42-602. DIRECTOR OF THE DEPARTMENT 42-602. DIRECTOR OF THE DEPARTMENT OF WATER RESOURCES TO SUPERVISE OF WATER RESOURCES TO SUPERVISE WATER DISTRIBUTION WITHIN WATER WATER DISTRIBUTION WITHIN WATER DISTRICTS.DISTRICTS. The director of the department of The director of the department of water resources shall have direction and control water resources shall have direction and control of the distribution of water from all natural water of the distribution of water from all natural water sources within a water district to the canals, sources within a water district to the canals, ditches, pumps and other facilities diverting ditches, pumps and other facilities diverting therefrom. Distribution of water within water therefrom. Distribution of water within water districts created pursuant to section 42-604, districts created pursuant to section 42-604, Idaho Code, shall be accomplished by Idaho Code, shall be accomplished by watermasters as provided in this chapter and watermasters as provided in this chapter and supervised by the director.supervised by the director.
Basin 45 IssuesBasin 45 Issues
Oakley Fan Ground Water Management Oakley Fan Ground Water Management
• 4 Critical Ground Water Areas (date established)4 Critical Ground Water Areas (date established) Artesian City (1967)Artesian City (1967) Cotton Wood (1967)Cotton Wood (1967) Oakley-Kenyon (1967)Oakley-Kenyon (1967) West Oakley Fan (1982)West Oakley Fan (1982)
• Areas are contiguousAreas are contiguous
• IDWR studies indicated all water fully appropriatedIDWR studies indicated all water fully appropriated
• No new appropriations allowed after designationNo new appropriations allowed after designation
Oakley Fan Ground Water HydrologyOakley Fan Ground Water Hydrology
• Four aquifers:Four aquifers: Deeper AquifersDeeper Aquifers
RhyoliteRhyolite LimestoneLimestone
Shallower AquifersShallower Aquifers BasaltBasalt AlluviumAlluvium
• Connections between the aquifers are not fully Connections between the aquifers are not fully understoodunderstood
• Faulting and surface water affect ground water Faulting and surface water affect ground water movement and flow directionmovement and flow direction
Oakley Fan Ground Water ConditionsOakley Fan Ground Water Conditions
• Each aquifer exhibits different characteristics Each aquifer exhibits different characteristics Generally:Generally: Shallow Aquifers more responsive to wet and dry Shallow Aquifers more responsive to wet and dry
cyclescycles Shallow Aquifers have more stable water levelsShallow Aquifers have more stable water levels Deeper Aquifers continue to show declinesDeeper Aquifers continue to show declines Some water levels have declined as much as 200 Some water levels have declined as much as 200
feet or more since 1950s: 100 foot declines are not feet or more since 1950s: 100 foot declines are not uncommonuncommon
• Ground water level information suggests Ground water level information suggests overdraft continuesoverdraft continues
Representative HydrographsRepresentative Hydrographs
Shallow Aquifer (Basalt)Shallow Aquifer (Basalt)
Well Open 40-638 feetWell Open 40-638 feet
Deep Aquifer (Rhyolite)Deep Aquifer (Rhyolite)
Well Open 735-750 feetWell Open 735-750 feet
W ELL 12S19E-02BBB1
500
450
400
350
300
250
200
150
3800
3850
3900
3950
4000
4050
4100
4150
55 60 65 70 75 80 85 90 95 00
W E LL 11S 20E -33D A D 1
350
300
250
200
150
100
50
0
3900
3950
4000
4050
4100
4150
4200
4250
55 60 65 70 75 80 85 90 95 00
Representative HydrographsRepresentative Hydrographs
Shallow Aquifer (Basalt)Shallow Aquifer (Basalt)
Well Open 282-346 feetWell Open 282-346 feet
Deep Aquifer (Limestone)Deep Aquifer (Limestone)
Well Open 80-850 feet Well Open 80-850 feet
W ELL 13S21E-18BBC 1
650
600
550
500
450
400
4300
4350
4400
4450
4500
4550
4600
50 55 60 65 70 75 80 85 90 95 00 05
W E LL 11S 23E -34C D C 1
450
400
350
300
250
200
3800
3850
3900
3950
4000
4050
55 60 65 70 75 80 85 90 95 00 05
Basin 45 Ground Water Rights & Ground Water Management Basin 45 Ground Water Rights & Ground Water Management
• SRBA Expansion RightsSRBA Expansion Rights
- - Approximately 60 expansion claims in Approximately 60 expansion claims in the the four Oakley CGWA’s, affecting overfour Oakley CGWA’s, affecting over
11,500 acres (June 30, 1985 11,500 acres (June 30, 1985 priority orpriority or later)later)
Basin 45 Ground Water Rights & Ground Water Management Basin 45 Ground Water Rights & Ground Water Management
• SRBA Enlargement RightsSRBA Enlargement Rights
- - Outside of Oakley CGWA’s, there areOutside of Oakley CGWA’s, there areabout 34 enlargement rightsabout 34 enlargement rightsaffecting over 2,600 acres affecting over 2,600 acres (April 12, 1994 priority)(April 12, 1994 priority)
Standards for Creating a New Water District
Standards for Creating a New Water District
a)a) Systematic inventory of diversionsSystematic inventory of diversionsb)b) Evaluate needs for sub-districts/deputy Evaluate needs for sub-districts/deputy
watermasterswatermastersc)c) Require measuring devices & headgates as Require measuring devices & headgates as
neededneededd)d) Regularly visit diversions & record measurementsRegularly visit diversions & record measurementse)e) EnforcementEnforcementf)f) Annual Reports & BudgetsAnnual Reports & Budgets
Water District RequirementsWater District Requirements
• Utilize technologyUtilize technology GIS and GPSGIS and GPS Remote sensingRemote sensing Remote ET determinationsRemote ET determinations
• IDWR will fund a full time IDWR will fund a full time equivalent for two years, if elected equivalent for two years, if elected as Watermasteras Watermaster
Water District Requirements, cont.Water District Requirements, cont.
Thoughts for the FutureThoughts for the Future
• Implementation of conjunctive Implementation of conjunctive administration will be an evolving administration will be an evolving processprocess
• Optimal results will be achieved via Optimal results will be achieved via collaborative efforts between water collaborative efforts between water users, delivery organizations, and users, delivery organizations, and IDWRIDWR
Thoughts for the Future (cont.)Thoughts for the Future (cont.)
• IDWR Formal Hearing here, 7 pm, IDWR Formal Hearing here, 7 pm, Thursday, December 15Thursday, December 15
Moving toward creation
Water District 140