Water Use and Resources Water Use and Resources in Arizona – Part 2in Arizona – Part 2

GPH 111 – Role Playing ProjectGPH 111 – Role Playing Project

Water Project Game Plan - Water Project Game Plan - Part 2:Part 2:• How does Phoenix use its How does Phoenix use its

water?water?• Breakdown of the 6 major water Breakdown of the 6 major water

usersusers• Interesting water use statisticsInteresting water use statistics• Problems with our water supplyProblems with our water supply• How does the project workHow does the project work

How do we use our water?How do we use our water?

ResidentialResidential – 1,020,000 acre feet – 1,020,000 acre feet AgricultureAgriculture – 850,000 acre feet* – 850,000 acre feet* IndustryIndustry – 138,000 acre feet – 138,000 acre feet Golf CoursesGolf Courses – 103,500 acre feet – 103,500 acre feet GovernmentalGovernmental – ~92,000 acre feet – ~92,000 acre feet ConstructionConstruction – 92,000 acre feet – 92,000 acre feet

At least, as best as I can piece it together…

*Known amount?*Known amount?

Residential Uses…Residential Uses…

Uses roughly 44% of water available in the Phoenix AMA

Agricultural Uses…Agricultural Uses…

Dropping 11,500 acre feet a year… because

1)1) Urbanization of agricultural lands*Urbanization of agricultural lands*2) the prohibition on the irrigation of new lands2) the prohibition on the irrigation of new lands3) conservation efforts by farmers3) conservation efforts by farmers

*there’s a catch*there’s a catchUses ~37% of water available in the AMA

Agricultural Uses…Agricultural Uses…

$6 to 7 billion a year industry in the state of Arizona

US Water News

Agricultural Uses…Agricultural Uses…Utilizes 37% of water available for use in the Phoenix AMA

Water-intensive crops.Crop Typical waterrequirement (in pounds)per 1 pound of cropCotton 3,500 – 14,500Rice 1,500 – 2,500Sugar Cane 750 – 1,500Soya 1,000Wheat 450Potatoes 250

And alfalfa…

Industry Uses…Industry Uses…

Uses roughly 6% of water available in the Phoenix AMA

How much money does industry make?

Golf Course Uses…Golf Course Uses…

Uses roughly 4.5% of water available in the Phoenix AMA

Generates $3.4 billion annually in Arizona

Governmental Uses…Governmental Uses…

Uses roughly ~4% of water available in the Phoenix AMA

Schools, Parks, Governmental Buildings, Tempe Town Lake…

Construction Uses…Construction Uses…

Uses roughly 4% of water available in the Phoenix AMA

Greater than $2.2 billion annually, likely closer to $7 billion

Dust control and washing

Construction sites Washing and Separating Gravels

Interesting Water Use Statistics:Interesting Water Use Statistics: Americans use 2,000 gallons a dayAmericans use 2,000 gallons a day Some people use 10 gallons a daySome people use 10 gallons a day At home, we use 200 gallons a dayAt home, we use 200 gallons a day A watered lawn uses 36,500 gallonsA watered lawn uses 36,500 gallons 26 gallons to grow each ear of corn26 gallons to grow each ear of corn 3,500 gallons to produce one pound of beef3,500 gallons to produce one pound of beef 1,400 gallons to produce a single fast food meal1,400 gallons to produce a single fast food meal

Problems with Our Water Supply:Problems with Our Water Supply: 520 million cubic yards of water are mined from 520 million cubic yards of water are mined from

Arizona aquifers every year, double the Arizona aquifers every year, double the recharge raterecharge rate

90 billion gallons of water (Leachate) seep from 90 billion gallons of water (Leachate) seep from 18,500 landfills each year in the US18,500 landfills each year in the US

Lake Mead and Powell at low levels, CAP will Lake Mead and Powell at low levels, CAP will take the first hit take the first hit

Phoenix is growing rapidly: both residential and Phoenix is growing rapidly: both residential and industrial growth requires more waterindustrial growth requires more water

Dams and sediment, lose ability to store water Dams and sediment, lose ability to store water and clog waterways over timeand clog waterways over time

1) Unsustainable groundwater supplies

2) Surface and ground water contamination

3) Drought conditions

4) Continued growth

5) Infrastructure issues

Long Term Problems with Our Water Supply:Long Term Problems with Our Water Supply:

Lake Powell

Lake Mead

Between now and the Meeting!!!Between now and the Meeting!!!• Break the class into groupsBreak the class into groups: : ResidentsResidents, ,

FarmersFarmers, , IndustryIndustry, , ConstructionConstruction, , GovernmentGovernment, , Golf Course IndustryGolf Course Industry

• ResearchResearch your “Group” over the next your “Group” over the next twotwo weeks weeks

• Complete the handout:Complete the handout:• Page 1Page 1 – defend your “group’s” water use – defend your “group’s” water use• Page 2Page 2 - how YOU (as a member of your - how YOU (as a member of your

group) propose to solve our group) propose to solve our 251,000 acre 251,000 acre feetfeet overdraft for PHOENIX overdraft for PHOENIX

Your GoalYour Goal: 100% Renewable Water Supply for Phoenix: 100% Renewable Water Supply for Phoenix

What’s needed for the Meeting!!!What’s needed for the Meeting!!!

• WATER LAB 2 RESPONSIBILITYWATER LAB 2 RESPONSIBILITY: :

• Come to class well dressed Come to class well dressed (worth 1/2 of (worth 1/2 of

the lab grade)the lab grade) on these dates: on these dates:

prepared to discuss your group’s point prepared to discuss your group’s point of view of view (worth the other 1/2 of the lab grade)(worth the other 1/2 of the lab grade)

NOT A FORMAL PRESENTATIONNOT A FORMAL PRESENTATION• This is the same date your papers are due.This is the same date your papers are due.• Ask me about extra credit! (any visual aid)Ask me about extra credit! (any visual aid)

Class GoalClass Goal: 100% Renewable Water Supply for Phoenix: 100% Renewable Water Supply for Phoenix

Things to Know:Things to Know:• Who are the major water users in the Who are the major water users in the

Phoenix AMA by rank of use?Phoenix AMA by rank of use?

• How do the five major users generally use How do the five major users generally use their water? their water?

• What are the 5 problems with our water What are the 5 problems with our water supply?supply?