Transcript Landscape Irrigation Design

Rainwater Collection & Utilization for
Irrigation
Jeremy M. Mansell CID, CIC, CGIA, CLIA, ARCSA AP
Senior Technical Trainer
Alternative Water Sources
 Rainwater is water that falls on a roof or other hard,
impervious non-pedestrian, non-vehicular surface and is
captured, filtered and stored.
 Storm water is rainwater that has made contact with the
ground, sidewalks, parking lots and other surfaces that can
contribute contaminates.
 Gray water is untreated, non-industrial wastewater that has
not come in to contact with sewerage. Gray water includes
used water from bathtubs, showers, sinks and clothes
washers.
 Black water is untreated sewerage that contains fecal matter
and urine.
 Reclaimed water is water treated to domestic wastewater
tertiary standards and suitable for non-potable uses.
What is a Rainwater Harvesting System?
 Rainwater harvesting is the capture, diversion
and storage of rainwater for a number of
different purposes including, but not limited to,
landscape irrigation.
 Rainwater harvesting also includes land-based
systems with man-made landscape features to
channel and concentrate rainwater in either
storage basins or planted areas.
Rainwater Uses
Rainwater can be used for
– Potable water
 Drinking water
 Dish Washing
– Indoor non-potable water
 Laundry
 Sink/Shower
 Toilet Flushing
– Outdoor non-potable
 Car Washing
 IRRIGATION
Rainwater Harvesting System
Overview
Why Harvest Rainwater?
Water & Power Savings
 36 States in the US will experience some level of
drought stress in 2010
 Harvested rainwater provides a water source
when ground water is unavailable or
 unacceptable
The end use of the
harvested water is
close to the source
no costly distribution
systems
Blake, John. “Drought parches much of
the US, may get worse” CNN; February
24,2009
Reduced Environmental Impact
 Flooding & Storm water Damage
Reduced Pollution Potential
 Fertilizers, Chemicals, Oils, and other pollutants
are carried to storm drains, ending up in a
surface water or ground water supply
Money Savings
 The water is free – only cost for collection and
use
 Reduces utility bills
Tier/gallons per 1,000 gallons
0 - 10,000
$2.32
10,001 - 20,000
$3.24
20,001 - 30,000
$4.21
30,001 - 40,000
$5.18
40,001 and above
$7.45
Groundwater Resource/
Acquisition Fee$.30
Example of Tiered Billing
Using the table to the left, with a 5/8" meter, if a
family used 12,000 gallons of water they would be
charged:
$15.12 for the monthly minimum.
$2.32 per 1,000 gallons for the first 10,000 gallons
($2.32 x 10 = $23.20).
$3.24 per 1,000 gallons for the remaining 2,000
gallons ($3.24 x 2 = $6.48).
$.30 per 1,000 gallons for all 12,000 gallons
($.30 x 12 = $3.60).
The total cost (before taxes) for the use of 12,000
gallons is $48.40
($15.12 + $23.20 + $6.48 + $3.60).
Plant Water Use
 Most plants respond favorably to a slightly
lowered pH level
– Many gardeners find if a plant that should produce
flowers does not, adding a tablespoon of white
vinegar (4-6% acetic acid) to 5 gallons of water and
applying it to the plant will cause it to bloom.
USGBC & LEED
 US Green Building Council
– A nonprofit membership organization with a vision of a
sustainable built environment within a generation. Its
membership includes corporations, builders, universities,
government agencies, and other nonprofit organizations.
 LEED – Leadership in Energy & Environmental
Design
– Green Building Rating System is a voluntary, consensusbased national rating system for developing highperformance, sustainable buildings.
LEED for New Construction
 2 points available for Water Efficient
Landscaping
– 1 point for reducing water use for landscaping by 50%
over normal means
– A second point is available by eliminating all potable
water use or by eliminating irrigation
 A temporary irrigation system is allowed to establish the landscape.
It must be removed after 1 year.
 Use of drip irrigation is the easiest way to get the
first point. RWH is another option.
LEED for Existing Buildings
 Up to 3 points available for water efficient
landscape irrigation
– 1 point by reducing potable water use by 50%
– 2 points for a 75% reduction
– 3 points for a 100% reduction
LEED for Homes
 A maximum of 5 points available for water reuse
– RWH system
– Gray water use
 A maximum of 4 points available for a high efficiency
irrigation system
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Smart controller
Head to head coverage
Check valves
Drip irrigation
Installation by a Water Sense professional
Questions
For More Information
If you would like more information on the components and inner-workings of a
Rainwater Harvesting System, Please join Rain Bird Services Corporation for the
new Rainwater Collection & Utilization for Irrigation training course.
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Monday, December 13, 2010 - Friday, December 17, 2010
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Monday, October 25, 2010 - Friday, October 29, 2010
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Monday, September 27, 2010 - Friday, October 01, 2010
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Washington, DC
Monday, March 07, 2011 - Friday, March 11, 2011
Please visit www.rainbirdservicescorporation.com/training for a full course
description and to register for a class near you.
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Thanks You