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Assured and Adequate Water Supply Rule Modification August 23, 2007. Importation Priority Process Summary. Groundwater Transportation into an AMA Prohibited. Several Specific Exemptions Created McMullen Valley (45-552) Big Chino subbasin (45-555) Harquahala INA (45-554)

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assured and adequate water supply rule modification august 23 2007

Assured and Adequate Water Supply Rule ModificationAugust 23, 2007

Importation Priority

Process Summary

groundwater transportation into an ama prohibited
Groundwater Transportation into an AMA Prohibited
  • Several Specific Exemptions Created
    • McMullen Valley (45-552)
    • Big Chino subbasin (45-555)
    • Harquahala INA (45-554)
    • Butler Valley (45-553)
  • Each has specific limitations and qualifications
two types of importation water created
Two Types of Importation Water Created

#1- 1991 Allocation Date Priority

  • Up to 6 Million AF for land owners owning land by 1/1/88 in McMullen Valley
  • Up to 14,000 AF/Yr for the City of Prescott for CAP replacement and facilitating Indian settlement

#2- Application Date Priority

  • Applicant must own or lease qualifying land
  • Volume determined by number of acres

(except Butler Valley)

importation initiation
1991 Allocation Priority

Notification of location of withdrawal

ADWR approval of intended volume of withdrawal

Wells drilled after September 21, 1991 well impact review (5-year draw-down)

CAP use requirement (Big Chino exempted)

Application Date Priority

ADWR approval of withdrawal location (certify eligible lands)

Approval of allowable volume (usually per/acre)

Wells drilled after September 21, 1991 well impact review (5-year draw-down)

CAP use requirement (Big Chino exempted)

Importation Initiation
use of importation water
Use of Importation Water
  • Once importation notification received or importation application approved, importation may begin
  • No long term impact analysis is conducted

(10-year draw-down for wells drilled after Sept. 21, 1991 wells, Big Chino 555.E exempted)

impacts to assured adequacy determinations applied only in the area of hydrologic impact
1991 Allocation Priority

Pending and subsequent applications account for importation demand

Issued PAD’s & Analysis may have supply reduced

Certificates and Water Reports with no lots sold may be modified

Assured and adequate designations may have supply reduced

Application Date Priority

Pending and subsequent applications account for importation demand

Issued PAD’s & Analysis may have supply reduced

Certificates & Water Reports with no lots sold may be modified

Assured and adequate designations may have supply reduced

Impacts to Assured & Adequacy Determinations (applied only in the area of hydrologic impact)
slide7

AMA boundary

Adequacy determination impacted

Assured water supply determination

Importation Pumping Area

Adequacy determination not impacted

AMA

Area of Hydrologic Impact

use of importation water for assured water supplies
Use of Importation Water for Assured Water Supplies
  • Proposed importation must be notified or approved by the Department
    • CAP use requirements (non-Big Chino)
    • New well impact analysis (Big Chino 555.E exempted)
    • Withdrawal from appropriate lands
    • Volumetric limits
    • 100-year depth limits (Harquahala only)
use of importation water for assured water supplies1
Use of Importation Water For Assured Water Supplies
  • Must meet all of the Assured Water Supply Requirements
    • Financial capability, proper funding or development agreements in place to complete needed importation infrastructure
    • Continuous availability, must demonstrate the importation project completed in a timely manner, and reasonable expectation of completion (easements, access agreements etc.)
use of importation water for assured water supplies cont
Use of Importation Water For Assured Water Supplies Cont.
  • Must meet all of the Assured Water Supply Requirements
    • Physical availability, importer must demonstrate that the 100-year DTW does not exceed 1,000 feet (Pinal 1,200). Importer must take into account all existing uses including all recorded lots, designations, analysis, water reports, and other importation demands.
    • New uses may impact the assured supply