1. Water Supply and Demand Assessment Historic Trends 1985-2006
Phoenix AMA
Water Supply and Demand Assessment
Historic Trends
Based on the template as of Friday, October 31st.

2. Phoenix AMA Demand by Source
Demand does not include water stored
Groundwater demand = riparian + Indian gw + Ag gw + Ag GSF + Industrial gw + muni Gw
CAP: Muni cap + muni recov CAP + indust CAP + indust. Recovered CAP + Ag CAP + total Indian CAP
SW Demand: Muni Sw + muni spill + muni recov. Sw + Indust SW + Indust recov sw + Ag SW (Dcap, Nf, Spill, other) + Indian
Effluent Demand: Muni Direct use eff + muni recov. Effuent + Indust DU eff + indust recov. Effluent + Ag effluent (3 way exchange, other direct use effluent) + Indian effluent

3. Phoenix AMA Overdraft
Demand numbers here are calculated in the same manner as they were in Slide #2.
Deficit = Net natural + Incidental Recharge + GRD Replenishment - gw used
GRD Replenishment data source is the Annual spreadsheet, kept by OAWS, called “CAGRD Replenishment District Accounting”

4. Phoenix AMA Demand by Sector
Indian Water Use numbers come from:
Annually reported deliveries from SRP
GRIC Annual reports where use is split between Pinal and Phx AMA
Water Settlement information from Statewide Planning.

5. Phoenix AMA
Exempt wells = Number of exempt wells * 2.67 ppH (Maricopa County Occupancy Rate) * 1 acre foot per person (this is too high and should be fixed).
Deliveries to individual users are included here.
PVNGS deliveries are not included here.

6. Phoenix AMA
ET and precipitation data came from AZMET website.

7. Phoenix AMA
Other includes G5s (Industrial facilites not regulated by any specific conservation program) plus poor quality permits plus drainage and dewatering permits.
Also includes PVNGS (approximately 60K acre feet of effluent per year).

8. Phoenix AMA
Canal and other losses strictly based on Irrigation district annual reports, not an AMA wide or district specific percentage.

9. Phoenix AMA
Groundwater supplies = municipal gw + industrial gw + Ag gwtr + Indian gw + riparian + outflow

10. Phoenix AMA
CAP use here does include CAP GSF deliveries (can be significant for SRP ( almost 30,000 ac feet in 2004 but much less when we have adequate surface water)
Water stored by the municipal sector is not included here.
Recovered water is included here.

11. Phoenix AMA Effluent use includes direct and recovered.
Industrial use includes PVNGS.

12. Phoenix AMA
Does not include Indian use.

13. Phoenix AMA Indian Water Use numbers come from:
Annually reported deliveries from SRP
GRIC Annual reports where use is split between Pinal and Phx AMA
Water Settlement information from Statewide Planning.

14. Phoenix AMA
Acre feet axis on left refers to annual storage while acre feet axis on right refers to total credits stored to 2006.