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SMARTLandscapeIrrigationBy Tom BarrettGreen Water Infrastructure, Inc.www.ThinkGWI.com Follow us on Twitter @TomBarrett_GWITom.Barrett@ThinkGWI.com © 2011 Tom Barrett

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IT’S the ECONOMY

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BankClosuresReach aRecord High

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Excessive Capacity

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Almost 80% Lost by Men... of the 5.1 Lost Jobs

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If you’re not confused . . . …you’re not paying attention. - Tom Peters

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The GREENEconomy

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Peak Flow (1 Acre Site) Grass Field Roof1 Year Storm 630 gpm 1,932 gpm2 Year Storm 942 gpm 2,424 gpm10 Year Storm 1,932 gpm 3,588 gpm25 Year Storm 2,556 gpm 4,266 gpm100 Year Storm 3,588 gpm 5,388 gpm gpm – gallons per minute

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Change in Peak Runoff Flow Before and after Development 300% 225% 150% 75% 0% Storm St orm St orm St orm St orm r r r r r ea ea ea ea ea 1Y 2Y 10Y 25Y 0Y 10 Stormwater Effects of Urbanization

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Image of Rain Falling

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PESTICIDE ISSUESATRAZINE, NITROGEN, PHOSPHOROUS

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Stormwater Mitigation– Collection runoff near the source– Slow it down– Soak it in– Filter it– Apply it to the landscape– Create habitats

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How Much Rain Falls in St. Louis?January - 1.83"February - 1.85"March - 2.88"April - 3.58"May - 4.10"June - 4.72"July - 3.56"August - 3.51"September - 3.17"October - 2.96"November - 2.35"December - 1.85"Total 36.36"

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Monthly Rainfall St. Louis 5.00 4.72 4.10 3.75 3.58 3.56 3.51 3.17Rainfall (in.) 2.88 2.96 2.50 2.35 1.83 1.85 1.85 1.25 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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How Much Water Does a Landscape Need in St. Louis?January - 0.00"February - 0.33"March - 1.04"April - 2.56"May - 4.60"June - 6.62"July - 7.60"August - 6.78"September - 4.42"October - 2.49"November - 0.83"December - 0.30"Total 37.57"

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Monthly Evapotranspiration St. Louis 8.00 7.60 6.62 6.78Evapotranspiration (in.) 6.00 4.60 4.42 4.00 2.56 2.49 2.00 1.04 0.83 0 0.33 0.30 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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What is the Problem? ? ? Month ET Rain Difference January - 0.00" 1.83" 1.83" February - 0.33" 1.85" 1.52" March - 1.04" 2.88" 1.84" April - 2.56" 3.58" 1.02" May - 4.60" 4.10" -0.50" June - 6.62" 4.72" -1.90" July - 7.60" 3.56" -4.04" August - 6.78" 3.51" -3.27" September - 4.42" 3.17" -1.25" October - 2.49" 2.96" 0.47" November - 0.83" 2.35" 1.52" December - 0.30" 1.85" 1.55" Total 37.57” 36.36" -1.21"

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Monthly Evapotranspiration St. Louis 8.00 7.60 6.62 6.78Evapotranspiration (in.) 6.00 4.60 4.42 4.00 2.56 2.49 2.00 1.04 0.83 0 0.33 0.30 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Monthly Rainfall St. Louis 5.00 4.72 4.10 3.75 3.58 3.56 3.51 3.17Rainfall (in.) 2.88 2.96 2.50 2.35 1.83 1.85 1.85 1.25 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Monthly Evapotranspiration Shortfall - St. Louis 8.00 6.00 4.00Inches 2.00 0 -2.00 -4.00 -6.00 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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History of IrrigationSystems 1917 - John A. Brooks Company Patens All Automatic Underground Irrigation Systems 1933 - Rain Bird Patents the First Horizontal Impact Rotor 1955 - Weathermatic Patents the first Hydraulic Valve 1960 - Blass invents the first Dripper 1968 - Moist-O-Matic develops the Plastic Sprinkler

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Methods of ControlSystemsClimate BasedControllers Rain SensorsWeather Based Soil Moisture SensorsControllers Weather StationsInternet Based Pager TechnologyControllers

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Climate Based Control

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Weather Based Control Systems

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Internet Based Control Systems

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Rain Sensors

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Soil Moisture Sensors

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Weather Stations

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Paging Technology

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Low Volume Application In-line Emitter Tubing Drip Emitters Micro-Sprays Low Precipitation Rotors Advanced Sprayhead Technology

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Drip Irrigation Systems

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Drip Emitters

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Micro Sprays

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Low Precipitation Rotors

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Sprayhead Technology

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Alternate Water Sources Gray Water Effluent Water Rain Water Condensation

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Gray Water

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Effluent Water

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Effluent Water

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Rain Water

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Untapped ReservoirUntapped ReservoirUntapped ReservoirUntapped ReservoirUntapped ReservoirUntapped Reservoir

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How Much Rain Falls in St. Louis?January - 1.83"February - 1.85"March - 2.88"April - 3.58"May - 4.10"June - 4.72"July - 3.56"August - 3.51"September - 3.17"October - 2.96"November - 2.35"December - 1.85"Total 36.36"

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How Much Water Falls in St. Louis? 2,500 sq. ft. RoofJanuary - ,852 gallons 2 Image of Rain FallingFebruary - ,883 2March - ,488 4April - 5,579May - ,390 6June - 7,356July - ,548 5August - ,470 5September- ,940 4October - ,613 4November - 3,662December - 2,883Total 6,664 5

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How Much Water Falls in St. Louis? 3 Acre Commercial PropertyJanuary - 49,075 gallons 1February - 50,705 1March - 34,611 2April - 291,634May - 33,994 3June - 384,501July - 90,005 2August - 85,932 2September - 58,235 2October - 41,128 2November - 191,436December - 150,705Total 2,961,961

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Image of Rain Falling

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Stormwater MitigationStormwater MitigationStormwater MitigationStormwater MitigationStormwater Mitigation

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HVAC Condensation½ gallon per hour per tonof air conditioning.1,000 ton air conditionerproduces 8 gallons ofwater per minute.Condensation productionoccurs when the landscapeneeds the water.

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HVAC Condensation½ gallon per hour per tonof air conditioning.One ton of air conditioningfor every 700 sq. ft. of floorspace.One ton of air conditioningfor every 5,600 cu. ft. ofbuilding volume.

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Residential Condensation8 to 15 gallons of waterper day.60 to 100 gallons perweek.250 to 450 gallons permonth.

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Commercial Condensation15 gallons of water perminute.360 gallons of water per day.2,520 gallons of water perweek.10,000 gallons of water amonth.

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LEED Rating System

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LEED Rating System

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EPA WaterSense Program

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Irrigation Association

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Irrigation Association

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Irrigation Association

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How Much Water?

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HOLDthe Specification . . .

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No Cost WaterConservation % WaterMonthly Irrigation Month ET BudgetController Adjustment April 2.6” 40% 30% Water Savings May 4.6” 0%Overall WaterConservation Resulting in: June 6.6” 140% July 7.6” 165% Reduced water usage August 6.8” 150% Improved appearance September 4.4” 95% Reduced maintenance October 2.5” 45%

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It is not the strongest of the species that survives, nor the most intelligent, but the one most responsive to change. - Charles Darwin

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The GREENEconomy

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PLANTING TREES

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FUNCTIONAL LANDSCAPES

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Just Do It

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Green • Water • InfrastructureGreen • Water • InfrastructureGreen • Water • InfrastructureGreen • Water • InfrastructureGreen • Water • Infrastructure

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Thank You