CJ 51-70 CJ 71-90 C=:J 91-110 1111 111-125 126-150 1111 151-175 - - PDF document

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CJ 51-70 CJ 71-90 C=:J 91-110 1111 111-125 126-150 1111 151-175 - - PDF document

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Department of Water Resources 2015 Leglslatlve Presentation Gary Spackman Director February 5-6, 2015 2015 Resource Committee Presentations.pptx 1 Department of Water Resources 2015 Legislative Presentation Gary Spackman Director February

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SLIDE 1

Department of Water Resources

2015 Leglslatlve Presentation

Gary Spackman Director

2015 Resource Committee Presentations.pptx

February 5-6, 2015

1

slide-2
SLIDE 2

Department of Water Resources

2015 Legislative Presentation

Gary Spackman Director

February 5-6,

2015

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SLIDE 3

74f.

OWYHEE BASIN

Mountain Snow Water Equivalent

As of Monday, February 2. 2015.

Idaho Snow Survey SNOTEL Data

SALMON BA·SIN

Percent of Median (1981 -2010) 1111 0-24 1111 25-50

CJ

51-70

CJ

71-90

C=:J 91-110

1111 111-125

126-150

1111 151-175

111111 116-200

1111 201-500

MEDICINE LODGE,

BEAVER, CAMAS BASINS

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SLIDE 4

IDWR General Fund Appropriation 10 Vear Comparison

General Fund$

16000000 14000000

$11,827,400

12000000 10000000 8000000 6000000 4000000 2000000

FY FY FY FY FY FY FY FY FY FY FY

2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016

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SLIDE 5

Adjudication -Palouse River Basin

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SLIDE 6

Reservoir Fill/Refill - Flood Control

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SLIDE 7

Reservoir Fill/Refill - Flood Control

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SLIDE 8

Reservoir Fill/Refill - Flood Control

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SLIDE 9

Surface Water Coalition Call

  • Remand from Judge Wildman requires a

rewrite of the order to determine dificient supply to senior surface water users

  • Requires preseason prediction of supply and

mitigation

  • Requires midseason adjustment and additional

mitigation

  • Requires safety factors to protect senior against

inaccurate predictions

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SLIDE 10

Evaluation of Areas where Alternative Seal Depths may be Warranted

  • Island Park - This is an area which has historic

bacterial contamination with known illness.

  • Wood River Valley - This is an area where a

number or ~aivers have been granted because of the highly permeable coarse gravel and sand

  • Donnelly Area - This is an area where glacial

deposits consisting of sand, gravel, silt and clay are present and ground water is very shallow.

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SLIDE 11

Island Park

  • At least 82 people became sick from Shige/Ja

sonnei bacteria in 1995 from poorly sealed wells

  • Studies in the area show that the ground water

and surface water are in hydrologic connection

  • Deeper seals have been required since 1996
  • Health District indicated that most of the

contamination has been eliminated by installing deeper seals from the surface to the production zone

  • The Department will continue to require deep

seals to prevent illness and protect wells in the area

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SLIDE 12

Wood River Valley

  • Department and USGS studies document coarse

sediments comprise the aquifer

  • Aquifer is highly conductive with no confining

layers

  • Hydrogeologic conditions in the Wood River

Valley are similar to the Rathdrum Prairie Aquifer

  • The Department has agreed that a reduction of

the minimum surface seal to 18 feet would be consistent with requirements in the Rathdrum Prairie

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SLIDE 13

Donnelley Area

  • Department studied the geology and

hydrogeology in the Donnelly area

  • The upper fine grained sediments are oxidized

with low yields but good water quality

  • Deeper sediments are coarse, under reduced

conditions, show artesian pressure and poor water quality with dissolved iron and sulfur

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SLIDE 14

Donnelley Area

  • The 38 foot minimum seal is appropriate for the

Donnelly Area based on the hydrogeologic conditions

  • Wells 38 feet or less can install an 18-foot seal
  • If the well is deeper than 38 feet, a 38-foot seal or

, deeper is fiequired to prevent comingling of aquifers

  • f aifferent pressure and water quality
  • Alternative surface seal depths.

can be evaluated

!

through the waiver process on a case by case basis

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SLIDE 15

IDWR Active Transfer Applications 600

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slide-16
SLIDE 16

Total Permits Requiring A Field Exam

3000

  • Eastern
  • Northern
  • Southern
  • Western
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SLIDE 17

IDWR Water Supply Bank Lease Applications Pending

450

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350 300 250 200 150 100

so

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SLIDE 18

IDWR Water Supply Bank Rental Applications Pending

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SLIDE 19