Draft 3-11-13

Evaluation of Future AWBA Storage

1)AWBA Goals and Obligations – Identify AWBA goals and obligations achieved through 2012

a)M&I Firming

b)Indian Firming

c)On-River Firming

d)Interstate

2)Resources Available to AWBA – Estimates for the next 10-years.

a)Water

b)Storage Capacity

c)Funding

3)Location of Storage

a)AWBA Storage

i)Existing credits

ii)Effects of storage

b)Storage Facilities

i)Type of recharge facility (GSF, USF)- description of the two types of recharge

ii)Hydrology – effects of recharge

(1)General trends in groundwater storage change - Look at information, when available, on average water level change and hydrographs of wells in the vicinity of various USFs and GSFs

(2)Information on depth to water, typical aquifer and vadose zone thickness in areas of recharge sites

(3)Vertical movement of stored water at USFs – analyze information (to the extent it is available) on estimated deep percolation rates through vadose zone and vertical groundwater flow rates through aquifer units (from model zone budget analysis) in the vicinity of recharge sites

c)Water Management Objectives

i)PhoenixAMA– goal of safe-yield

ii)Pinal AMA – goal of preserving agricultural economy as long as feasible while preserving water supplies for future non-irrigation use

iii)Tucson AMA– goal of safe-yield

iv)Fourth Management Plan

(1)Enhanced aquifer management - moving locations of water storage and recovery locations closer together to mitigate water level declines, subsidence, earth fissuring, water quality issues and lack of physical availability for assured water supply purposes.

(2)Short and long-term drought planning

(3)Achieving the agency mission of obtaining a safe, secure long-term water supply.

(4)Increased use of reclaimed water in all three water demand sectors: AG, Municipal, and Industrial

d)Recovery/Pumping

(1)Wells located at recharge sites

(2)Where are wells perforated? (upper, middle, lower units, etc.)

(3)Total groundwater recharge and withdrawals in the vicinity of recharge sites – tabulated data showing net stresses to aquifers in such areas

4)Use of Future AWBA Resources – matrix evaluating storage within the three AMAsusing the information generated from the sections identified above.