Administrative Considerations for the Future of Water Management in - - PowerPoint PPT Presentation

▶

Sep 14, 2023 280 likes •570 views

Administrative Considerations for the Future of Water Management in the Eastern Snake Plain Aquifer, Idaho" Dave Tuthill, PhD, PE September 13, 2010 Prediction Relative to water delivery in Idaho Change is coming between now

SLIDE 1

“Administrative Considerations for the Future

f Water Management in the

Eastern Snake Plain Aquifer, Idaho"

Dave Tuthill, PhD, PE

September 13, 2010

SLIDE 2

Prediction…

Relative to water delivery in Idaho…

Change

is coming between now and 2020

SLIDE 3

Outline

 Water administration basics  Evolution of surface water management in

Idaho

 Evolution of ground water management in Idaho  Implementation of conjunctive administration in

the Eastern Snake Plain Aquifer

 Rapid advances in technology  Thoughts about recharge

SLIDE 4

In Idaho the appropriation doctrine is used for the delivery both surface water rights and ground water rights— “first in time is first in right”

SLIDE 5

Mrs. Adams
Mrs. Adams

Irrigation of Irrigation of 50 acres 50 acres 1.0 cfs 1.0 cfs 6/16/1887 6/16/1887

Mr. Black
Mr. Black

Irrigation of Irrigation of 60 acres 60 acres 1.2 cfs 1.2 cfs 6/17/1887 6/17/1887

1 miner’s inch = .02 cubic feet per second = 9 gallons per minute 1 miner’s inch = .02 cubic feet per second = 9 gallons per minute

Mrs. Clark
Mrs. Clark

Irrigation of Irrigation of 500 acres 500 acres 10.0 cfs 10.0 cfs 6/16/1982 6/16/1982

Well Well

Administered by a State of Idaho Water District which hires a Watermaster

SLIDE 6

Surface Water Evolutionary Cycle – Snake River

Initial Diversions – 1860’s Initial Decrees – Turn of the century Rental Pool – 1990’s Instream Requirements – 1980’s Addition of Storage – 1900’s – 1950’s Initial Water District – 1920’s

SLIDE 7

Ground Water Evolutionary Cycle – ESPA

Initial Domestic Wells – 1860’s Initial Municipal Wells – 1890’s Surge of Supplemental Wells – 1977 Initial Irrigation Wells – 1940’s

SLIDE 8

Implementation of Conjunctive Administration

SLIDE 9

Problem

Water deliveries must consider connections between ground water and surface water (conjunctive administration) if fair delivery is to be achieved

SLIDE 10

Additional Drivers of Change

 Increased efficiencies of irrigation have led to

reduced deep percolation

 Increasing urbanization  Increased recognition of instream values  Water needs for energy production  Impacts of climate change?  A need to coordinate land use planning with

water use planning

SLIDE 11

Implementation of Conjunctive Administration

Creation of water rights from surface water and ground water Snake River Basin Adjudication initiated in 1987 ESPA is the first aquifer in the state To undergo post-SRBA Implementation of Conjunctive Administration All but a few recommendations resolved Recommended water rights in ESPA

SLIDE 12

Eastern Snake Plain Aquifer Experience

SLIDE 13

SLIDE 14

Advances in Technology

SLIDE 15

Recommended Places of Use

Geographic Information Systems

SLIDE 16

SLIDE 17

Ground Water Interface with Ground Water Models

Modeling

SLIDE 18

SLIDE 19

Streamflow Measurement

SLIDE 20

Gaging Stations

SLIDE 21

Recharge

SLIDE 22

Eastern Snake Plain Aquifer Boundary

SLIDE 23

SLIDE 24

SLIDE 25

SLIDE 26

Basalt in drainage channel after the wetting front from Egin Lakes outlet

SLIDE 27

SLIDE 28

208-378-1513 Website: Idahowaterengineering.com Email: info@idahowaterengineering.com