Goodyear Applies GIS Technology to Plan Water Resources Development

Richard Humpherys, Carollo Engineers Mark Holmes, City of Goodyear Water Resources

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GIS is THE tool to Plan Water Resources Development for the

City of Goodyear, AZ

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Presentation Outline

• Background on Goodyear Water Resources• Opportunities for growth• Water Supply Needs• Sustainable Solutions• Water Supply Alternatives• GIS applications

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WATER RESOURCE OVERVIEWCity of Goodyear

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Current water supplies

Groundwater, 5,025.00 AF/YR,

18%Long term Storage

Credits, 723.02 AF/YR, 2%

CAP M&I Subcontract,

10,742.00 AF/YR, 38%

CAP GRIC Lease, 7,000.00 AF/YR,

25%

Direct delivered Reclaimed,

1,377.56 AF/YR, 5%

Available Reclaimed Water

157th Ave, 3,500.00 AF/YR,

12%

Groundwater

Long term Storage Credits

CAP M&I Subcontract

CAP GRIC Lease

Direct delivered Effluent

Available effluent 157th AveWWTP

Total = 28,367.58 Acre-Feet per Year

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Physically Available Groundwater

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Historical Water Production

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000

2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

ACR

E-FE

ET

YEARS

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FUTURE SCENARIOS

50,000

150,000

250,000

350,000

450,000

550,000

650,000

750,000

850,000

950,000

0

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

100,000

110,000

120,000

130,000

140,000

150,000

160,000

170,000

180,000

2012

2015

2018

2021

2024

2027

2030

2033

2036

2039

2042

2045

2048

2051

2054

2057

2060

2063

2066

2069

2072

2075

2078

2081

2084

Popu

latio

n

Acre

-Fee

t

Years

Population and Water Demand ModelShowing hypothetical buildout of the City

Population

Water Demands

Adjusted Water Demands

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0

5000

10000

15000

20000

25000

30000

35000

40000

2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035

ACRE

-FEE

T

YEARS

Committed Demands

Existing Demands

Water Resources Portfolio

EXISTING & COMMITTED WATER DEMANDSVERSUS CITY ASSURED WATER SUPPLIES

8,714 AF – Existing Demands

26,224 AF – Committed Demands

37,222 AF – Total Demands

14,642 AF – Current Designation of Assured Water Supplies

28,367 AF – New 2014 Designation of Assured Water Supplies in 2014

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OPPORTUNITIES TO GROWCity of Goodyear

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A Large Portion of Goodyear is in the Rainbow Valley Groundwater Basin

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Goodyear’s Planning Area Includes Many Square Miles of Land in Rainbow Valley for a Sonoran Desert Lifestyle

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Rainbow Valley’s Irrigated Lands can become Residential Neighborhoods

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Multiple Development Plans Have Been Developed, Waiting for Buyers

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WATER SUPPLY NEEDS

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Goodyear’s Land Use Plan

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Extent of Water Service Area

77 sq. mi. /~35% of

Service Area“unknown” = 40 sq mi, which is

not included in total. Colored areas on map = 117 sq mi

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Geographic Distribution of Future Developments by Commitment Level

Commitment Demand (mgd)

Demand (AFY)

Level 1 37.3 41,732Levels 1 & 2 78.1 87,469Levels 1, 2 & 3 91.0 101,891Levels 1, 2, 3, & 4 117.6 131,760

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SUSTAINABLE SOLUTIONS

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Groundwater Sub-basins Related to Goodyear

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Rainbow Valley: Physical Groundwater Mass Balance

IncidentalRecharge

NaturalRecharge

Storage Volume100

Recharge Volume100

Annual AgriculturalPumping

Sustainable AnnualPumping Allowance+ + + = +

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Reclaimed Water Recharge Facilities can be planned to become Future Community Amenities

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Reclaimed Water Recharge Projects

City of ChandlerVeterans Oasis Park

Gilbert Riparian Preserve

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Low Water Use Xeriscaping Creates Attractive, Sustainable Communities

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WATER SUPPLY ALTERNATIVES

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38 Wells in WPA4 and WPA 5.Is This Feasible?

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Harquahala Well Water Supply may Provide Water to Goodyear, other Communities

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Goodyear May choose to Participate in a Regional Water Treatment Facility

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Goodyear may Choose to Construct its Own Treatment Facility

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Goodyear May Wheel CAP Water Through Pinal County Canals

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The Buckeye Canal Runs Through Goodyear, may have Water Resources that can be Purchased.

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GIS IS THE WATER RESOURCE PLANNING TOOL

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GIS Assists Groundwater Development Planning

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GIS Provides Data for Water, Wastewater Hydraulic Models

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GIS Assists in Planning Regional Developments

WPA 4

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GIS Assists Historical Well Management and Future Well Planning

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GIS Modeling Helps Quantify Groundwater Availability

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Future Water Campus

GIS Enables Integrated Planning of Water, Wastewater, and Reclaimed Water Systems

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Summary

• Goodyear has Land to Develop into a Large City• Additional Water Resources will be needed to fully

develop• Goodyear has Multiple Water Supply Opportunities• GIS is an effective Tool to Manage Water Resource

Development

Questions?

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