1.
SMART
Landscape
Irrigation
By Tom Barrett
Green Water Infrastructure, Inc.
www.ThinkGWI.com
Follow us on Twitter @TomBarrett_GWI
Tom.Barrett@ThinkGWI.com © 2011 Tom Barrett

2.
IT’S the ECONOMY

3.
Bank
Closures
Reach a
Record High

4.
Excessive
Capacity

5.
Almost 80% Lost by Men
... of the 5.1 Lost Jobs

6.
If you’re not confused . . .
…you’re not paying attention.
- Tom Peters

7.
The GREEN
Economy

8.
Peak Flow
(1 Acre Site)
Grass Field Roof
1 Year Storm 630 gpm 1,932 gpm
2 Year Storm 942 gpm 2,424 gpm
10 Year Storm 1,932 gpm 3,588 gpm
25 Year Storm 2,556 gpm 4,266 gpm
100 Year Storm 3,588 gpm 5,388 gpm
gpm – gallons per minute

9.
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

10.
Image of Rain Falling

11.
PESTICIDE ISSUES
ATRAZINE, NITROGEN, PHOSPHOROUS

12.
Stormwater Mitigation
– Collection runoff near the
source
– Slow it down
– Soak it in
– Filter it
– Apply it to the landscape
– Create habitats

13.
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"

14.
Monthly Rainfall
St. Louis
5.00 4.72
4.10
3.75 3.58 3.56 3.51
3.17
Rainfall (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

15.
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"

16.
Monthly Evapotranspiration
St. Louis
8.00 7.60
6.62 6.78
Evapotranspiration (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

17.
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"

18.
Monthly Evapotranspiration
St. Louis
8.00 7.60
6.62 6.78
Evapotranspiration (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

19.
Monthly Rainfall
St. Louis
5.00 4.72
4.10
3.75 3.58 3.56 3.51
3.17
Rainfall (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

20.
Monthly Evapotranspiration
Shortfall - St. Louis
8.00
6.00
4.00
Inches
2.00
0
-2.00
-4.00
-6.00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

21.
History of Irrigation
Systems
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

22.
Methods of Control
Systems
Climate Based
Controllers Rain Sensors
Weather Based Soil Moisture Sensors
Controllers Weather Stations
Internet Based Pager Technology
Controllers

23.
Climate Based Control

24.
Weather Based Control Systems

25.
Internet Based Control Systems

26.
Rain Sensors

27.
Soil Moisture Sensors

28.
Weather Stations

29.
Paging Technology

30.
Low Volume Application
In-line Emitter Tubing
Drip Emitters
Micro-Sprays
Low Precipitation Rotors
Advanced Sprayhead Technology

31.
Drip Irrigation Systems

32.
Drip Emitters

33.
Micro Sprays

34.
Low Precipitation Rotors

35.
Sprayhead Technology

36.
Alternate Water Sources
Gray Water
Effluent Water
Rain Water
Condensation

37.
Gray Water

38.
Effluent Water

39.
Effluent Water

40.
Rain Water

41.
Untapped Reservoir
Untapped Reservoir
Untapped Reservoir
Untapped Reservoir
Untapped Reservoir
Untapped Reservoir

42.
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"

43.
How Much Water Falls in St. Louis?
2,500 sq. ft. Roof
January
-
,852 gallons
2 Image of Rain Falling
February
-
,883
2
March
-
,488
4
April
- 5,579
May
-
,390
6
June
-
7,356
July
-
,548
5
August
-
,470
5
September
-
,940
4
October
-
,613
4
November
-
3,662
December
- 2,883
Total
6,664
5

44.
How Much Water Falls in St. Louis?
3 Acre Commercial Property
January
-
49,075 gallons
1
February
-
50,705
1
March
-
34,611
2
April
- 291,634
May
-
33,994
3
June
-
384,501
July
-
90,005
2
August
-
85,932
2
September
-
58,235
2
October
-
41,128
2
November
-
191,436
December
- 150,705
Total
2,961,961

45.
Image of Rain Falling

46.
Stormwater Mitigation
Stormwater Mitigation
Stormwater Mitigation
Stormwater Mitigation
Stormwater Mitigation

47.
HVAC Condensation
½ gallon per hour per ton
of air conditioning.
1,000 ton air conditioner
produces 8 gallons of
water per minute.
Condensation production
occurs when the landscape
needs the water.

48.
HVAC Condensation
½ gallon per hour per ton
of air conditioning.
One ton of air conditioning
for every 700 sq. ft. of floor
space.
One ton of air conditioning
for every 5,600 cu. ft. of
building volume.

49.
Residential Condensation
8 to 15 gallons of water
per day.
60 to 100 gallons per
week.
250 to 450 gallons per
month.

50.
Commercial
Condensation
15 gallons of water per
minute.
360 gallons of water per day.
2,520 gallons of water per
week.
10,000 gallons of water a
month.

51.
LEED Rating System

52.
LEED Rating System

53.
EPA WaterSense Program

54.
Irrigation Association

55.
Irrigation Association

56.
Irrigation Association

57.
How Much Water?

58.
HOLD
the Specification . . .

59.
No Cost Water
Conservation
% Water
Monthly Irrigation Month ET
Budget
Controller Adjustment
April 2.6” 40%
30% Water Savings
May 4.6” 0%
Overall Water
Conservation 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%

60.
It is not the strongest of the species
that survives,
nor the most intelligent, but the one
most responsive to change.
- Charles Darwin

61.
The GREEN
Economy

62.
PLANTING TREES

63.
FUNCTIONAL LANDSCAPES

64.
Just Do It

65.
Green • Water • Infrastructure
Green • Water • Infrastructure
Green • Water • Infrastructure
Green • Water • Infrastructure
Green • Water • Infrastructure

66.
Thank You