Transcript Water Resources Master Plan Executive Summary

Sustaining Peoria’s Diverse Water Portfolio
January 9, 2010
City of Peoria
Public Works-Utilities Department
To provide reliable, quality water services to Peoria customers today and tomorrow
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What’s an acre-foot?
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One acre foot of water equals 325,851
gallons, the amount used by a family
of four in one year (223 gallons per
person per day)
Football field (approx. acre) - without
end zones – filled with water 1 foot
deep
22 pools each holding 15,000 gallons
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Where Peoria Gets Water
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Salt-Verde River water from SRP
Colorado River water from CAP
Stored water recovered from wells
Reclaimed water directly delivered
Groundwater pumped from wells
Peoria’s Diverse Supply
2010 Water Supply Portfolio
Recovered Well Water =
6,567 acre-feet
24%
Effluent
directly
delivered =
1,378 acrefeet 5%
Salt River Project
Surface Water =
8,995 acre-feet
33%
Central Arizona Project Surface
Water = 10,157 acre-feet
38%
Total Water Supply = 27,097 acre-feet
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7.5 Million Acre-feet
(1922)
Lake Powell
Glen Canyon Dam
(1963)
7.5 Million Acre-feet (1922)
- California: 4.4 million (1964)
- Arizona: 2.8 million
- Nevada:
300,000
Lake Mead
Hoover Dam
(1935)
1.5 Million Acre-feet
(1944)
Peoria’s
allotment
33,236 af/yr
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QUESTIONS ON CAP?
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~300%
300%
2006
Facts:
Arizona Canal – 1885
SRP created in 1903
Roosevelt Dam: 1905-1911
QUESTIONS ON SRP?
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Groundwater/Recovered
Water
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Groundwater is pumped from several wells
scattered across Peoria.
Groundwater must be replenished to meet
“Safe Yield” required by GWMA.
Peoria stores water underground at four
underground storage facilities.
Stored water then can be pumped from
wells and is then recovered water.
In 2010 stored water recovered from wells
was 6,567 acre-feet, or 24% of total.
Recharge Program
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ADWR Water Storage Permits allow up
to 85,520 acre-feet/year to be stored.
Sources include CAP and reclaimed
water.
Peoria stores more water underground
each year than it takes out in order to
have water available when drought
strikes.
QUESTIONS ON WATER
PUMPED FROM WELLS?
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Reclaimed Water
Definition:
the collection and treatment of wastewater from
homes and businesses to be used where drinking
quality water is not required
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Treated wastewater
Tested for compliance
Safe for application in
non-potable uses
Benefits of Water Reuse
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Assists conservation efforts
Saves drinking water
Delays costly expansion of water treatment
facilities  lower water rates
Readily available
source of water
Reliable, even during
times of shortage
Supplies increase as
population increases
Types of Water Reuse
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Direct use
– Irrigation
– Decorative water features
– Industrial processes
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Recharge
– Geologic layers further clean reclaimed
water
– Replenish groundwater supplies 
“bank account” for long-term
sustainability
Reclaimed Water Directly
Delivered
Direct use of recycled water for amenities, lakes,
landscaping, golf courses, other non-potable uses
Reclaimed Water
Makeup/Storage
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1.5 MG Storage
Tank at Jomax WRF
– Jomax WRF Effluent
= 10%
– Central Arizona
Project =90%
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Storage Lake on
Golf Course
Reclaimed
Water
CAP water
Current Direct Uses
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Golf course lake
Water features (future)
Some right-of-way landscaping (future)
Wherever purple tags or irrigation boxes
signage is seen
Reclaimed Water vs. Gray
Water
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Reclaimed water
– All water from a building goes to water reclamation facility
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Black water – kitchen sink, toilets
Gray water – bathroom sinks, showers, bathtubs, washing machine
– Effluent (a combo of gray water and black water) is treated by
the city according to US EPA and AZ DEQ standards
– Distributed back to users through separate pipe system for use
where non-potable water is ok
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Gray water
– Water from bathroom sinks, showers/bathtubs, and washing
machine goes to onsite storage tank
– Minimal treatment by filtration
– Distributed to individual landscape for watering purposes
Reclaimed Water Quality Concerns
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Safety of reclaimed water in general
– Quality regulated by US EPA and ADEQ
– Contact with, or accidental ingestion, poses no significant
concern for humans or animals
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Safety for children and/or pets playing on areas irrigated
with reclaimed water
– Water at night when areas aren’t in use
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Occurrence of overspray from sprinkler systems
– Water when there is no wind and maintain irrigation system so
spray is not too fine
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Safety of infrastructure
– Reclaimed water system components identified by purple color
– Reclaimed water systems are checked to ensure no crossconnection with potable water system
QUESTIONS ON
RECLAIMED WATER?
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Storm Water Runoff
Storm water runoff
occurs when rain falls
onto the ground and /or
snow melts but is unable
to infiltrate into the
ground. It will then flow
across the land, flowing
to a nearby water body
such as lakes and
streams.
Urban Runoff
Urban runoff is unable to
infiltrate into the soil due
to paved surfaces.
Therefore, water flows into
roadways, streets,
sidewalks and eventually
is collected through
channels or storm drain
inlets. These inlets are
located in parks, rivers, and
washes.
Runoff and Pollution
Pollution from runoff
occurs when the water is
running down the
streets. It is constantly
picking up pollutants
such as animal feces,
chemicals, oil, fertilizers,
and pesticides as well as
many other
contaminants.
What Is The NPDES Stormwater
Program?
The National Pollutant Discharge Elimination System
(NPDES) Stormwater Program regulates stormwater
discharges from three potential sources:
•Municipal separate storm sewer systems (MS4)
•Construction activities
•Industrial activities
Operators of these sources may be required to receive
an NPDES permit before they are able to discharge into
local surface waters. Local surface waters are identified
as streams, rivers, lakes or coastal waters.
QUESTIONS ON STORM
WATER PROGRAM?
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Water Conservation
…because …
Peoria has enough water to use, but we never have
enough to waste
TM
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Public Education –
Youth and Adult
Programs
Community
Outreach – Events,
Speaker’s Bureau
Free Literature
Retrofit Program
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Financial Incentives
Track WC –Related
Legislature
Marketing/Promo –
News Releases, Ads
Regional
Partnerships
Sustainable Water Portfolio
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Surface water in fixed
amounts remains the basis
of Peoria’s water supply
Recovery of stored water is
our drought supply,
augmenting surface water
Recharge of excess surface
water and reclaimed water
are critical to Peoria’s future
water supply
Direct use of reclaimed
water offers significant
opportunities for the future
Water Conservation is the
best way to reduce demand