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![Page 1: Certified Landscape Irrigation Auditor Training. C.L.I.A. Training l Originally Developed by I.T.R.C. With a Grant From the California Department of Water.](https://reader030.fdocuments.in/reader030/viewer/2022032804/56649e585503460f94b51bb7/html5/thumbnails/1.jpg)
Certified Landscape Certified Landscape Irrigation AuditorIrrigation Auditor
TrainingTraining
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C.L.I.A. TrainingC.L.I.A. TrainingC.L.I.A. TrainingC.L.I.A. Training
Originally Developed by I.T.R.C. With a Grant From the California Department of Water Resources
Modified by the I.A. For Teaching Outside the State of California
Course Updated As of 3/10/00
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Class objectives:Class objectives:Class objectives:Class objectives: Students will be able to perform
field tests on real systems
Students will be able to identify problems that cause poor uniformity
Students will be able to calculate an accurate watering schedule
Students will be able to perform field tests on real systems
Students will be able to identify problems that cause poor uniformity
Students will be able to calculate an accurate watering schedule
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Important!Important!Important!Important!
You will need a calculator
Please turn off cell phones and pagers
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Today You Will:Today You Will:
Conduct your first audit Develop your first watering schedule Start to get a headache at aroundround 3:45 pm
Conduct your first audit Develop your first watering schedule Start to get a headache at aroundround 3:45 pm
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Tomorrow you will:Tomorrow you will:Tomorrow you will:Tomorrow you will:
Review the concepts you learned today Learn the final three steps of auditing Conduct your 2nd audit (by yourselves!) Calculate your 2nd schedule (by
yourselves!) Take your test and go home!
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Your Auditing ManualYour Auditing ManualYour Auditing ManualYour Auditing Manual
Introduction Site inspection and tune-up Performing field tests Calculating a schedule Appendices:
Auditing Drip, ET sources, tables and charts, blank worksheets
Introduction Site inspection and tune-up Performing field tests Calculating a schedule Appendices:
Auditing Drip, ET sources, tables and charts, blank worksheets
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Software PackageSoftware PackageSoftware PackageSoftware Package
Base Schedule Software– This is a simplified version that is easy use– It is based on the Base Schedule worksheet that
you will do in class– Does all of the math for you– Other more in-depth software is available from
ITRC
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Key Irrigation Auditor ActionsKey Irrigation Auditor ActionsKey Irrigation Auditor ActionsKey Irrigation Auditor Actions
Identify Equipment Problems Determine Actual System Performance
Based on Uniformity Tests Adjust Run Times According to Season Fine Tune Stations to Exposures Trim Back System to Minimize Water Use
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OPERATIONOPERATION
Irrigation AuditsIrrigation Audits
OPERATIONOPERATION
Irrigation AuditsIrrigation Audits
1. Site inspection - system tune up 2. System tests 3. Calculate a Base Schedule
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OPERATIONOPERATION
Irrigation ManagementIrrigation Management
OPERATIONOPERATION
Irrigation ManagementIrrigation Management
4. Implement - adjust base schedule 5. Track water use 6. System maintenance
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Benefits of SchedulingBenefits of SchedulingBenefits of SchedulingBenefits of Scheduling Water Savings = Money Savings Healthier Turf Reduced Chemical Use - Cleaner
Environment Less Strain on Distribution Systems
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How much money can How much money can be saved?be saved?
How much money can How much money can be saved?be saved?
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Case Study #1Case Study #1Case Study #1Case Study #1
Description: 152 ac. 7 Sites Pre-Audit Water Use = 825,418 ccf (149.6
in.) Post-Audit Water Use = 694,695 (125.9
in.) Water Saved = 130,723 (23.7 in.)
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Case Study #1 cont.Case Study #1 cont.Case Study #1 cont.Case Study #1 cont.
Value of Water Saved 130,723 ccf X $0.46/ccf = $60,132
Cost of Audits 152 ac. X $50/ac. = $ 7,600
Net Savings $60,132 - 7,600 = $52,532
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Case Study #2Case Study #2Case Study #2Case Study #2
Description: 180 ac. 36 Sites Pre-Audit Water Use = 401,769 ccf Post-Audit Water Use = 355,556 Water Saved = 46,213
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Case Study #2 cont.Case Study #2 cont.Case Study #2 cont.Case Study #2 cont.
Value of Water Saved 46,213 ccf X $1.72/ccf = $79,486
Cost of Audits 180ac. X 108/ac. = $19,440
Net Savings $79,486 - 19,440 = $60,046
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This water savings is This water savings is achieved by:achieved by:
This water savings is This water savings is achieved by:achieved by:
Checking and fixing equipment Following the weather throughout the
season Maintaining the system at peak efficiency
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UniformityUniformityUniformityUniformity
(NEVER PERFECT)GOOD UNIFORMITY
Depth ofWater
POOR UNIFORMITY
Depth ofWater
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Station
Before After
1 2 31 2 3
First Repair Equipment
Balance Runtimes Between Stations
ThenAdjust Runtime According to Season
FinallyTrim Back to Save More
Jan Dec
100%
Site Trim = 1
Jan Dec
Site Trim = .8
80%
Jan DecJan DecTurf Water Requirement
Water Applied
Average Amount Applied
Turf Water Requirement
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Site InspectionSite InspectionSite InspectionSite Inspection
Step one, get the system
working right
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Site Inspection PrioritiesSite Inspection PrioritiesSite Inspection PrioritiesSite Inspection Priorities
Minor not major repairs Low heads Plugged heads Bad adjustments Tilted heads No matched precipitation rate Mix matched heads
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Data to Collect During the Site Data to Collect During the Site InspectionInspection
Data to Collect During the Site Data to Collect During the Site InspectionInspection
Site conditions and micro-climates Point of connection data Controller data Brand of products used Current watering schedule
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Practice SessionPractice SessionPractice SessionPractice Session
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Matched Precipitation RateMatched Precipitation Rate(MPR)(MPR)
Matched Precipitation RateMatched Precipitation Rate(MPR)(MPR)
Nozzle GPM is in proportion with the area covered
Watering time is in proportion with the area covered
You must verify during the site inspection Can drastically alter the DU
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Break Time!Break Time!Break Time!Break Time!
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Field WorkField Work
Evaluating your systems
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Wind and AuditingWind and AuditingWind and AuditingWind and Auditing
Do not audit if the wind is 8 mph or higher(unless the wind is always 8 mph or higher)
Use the upwind\downwind ratio to be sure
An anemometer can also be used to judge wind speed
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Audit Plan and Irrigation TestAudit Plan and Irrigation TestAreas (Sub-Areas)Areas (Sub-Areas)
Audit Plan and Irrigation TestAudit Plan and Irrigation TestAreas (Sub-Areas)Areas (Sub-Areas)
Two types of test areas (sub-area)– Overlapping: more than one station in
test area
– Stand alone: single station in test area
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Identify Test GroupsIdentify Test GroupsIdentify Test GroupsIdentify Test Groups
Stand Alone
Overlapping
Stand Alone
Overlapping
Sta. 1
Sta. 1
Sta. 2
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Flag StationsFlag StationsFlag StationsFlag Stations
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Check System Check System PressurePressure
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Irregular GeometryIrregular GeometryIrregular GeometryIrregular Geometry
Station 1
Station 2
Station 3
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ITRC
Cal Poly
Detail "AT-A-HEAD" PlacementDetail "AT-A-HEAD" Placement
RIGHT
5
10
15
20
25
50
75
100125
150
175200
WRONG
5
10
1520
25
50
75
100125
150175200
Offset Approx. 2 ft.
PART CIRCLE HEADS
LATERAL
LATERAL
FULL CIRCLE HEADS
R
R
R
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Collect Other Data DuringCollect Other Data DuringStation RunsStation Runs
Collect Other Data DuringCollect Other Data DuringStation RunsStation Runs
Spacing of Sprinklers: Head to Head, Line-to-Line
Test Soil Type and Rootzone Depth
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Spacing MeasurementSpacing MeasurementSpacing MeasurementSpacing Measurement
LINE-TO-LINE
Station 1 Station 2 Station 3
Sprinkler
SPRINKLER-TO-SPRINKLER SAMPLESpacing
Measurement:Triangular
Spacing
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Testing Run Times (Min.)Testing Run Times (Min.)Testing Run Times (Min.)Testing Run Times (Min.)
How Long the Station Runs for Test Affects Quantity of Water in Catchments Spray Heads = 3-6 Minutes Rotary Heads = 8-16 Minutes Can Be Estimated from The Rotation Speed
of the Sprinkler
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Field Work HintsField Work HintsField Work HintsField Work Hints
Set Up Ahead of Current Station Always be Running a Station Get Major Areas Done First Radio Remote or Walkie Talkie Assistance of Site Staff
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Audit Plan and “Linking Audit Plan and “Linking Stations”Stations”
Audit Plan and “Linking Audit Plan and “Linking Stations”Stations”
To Reduce Field Time, “Link” Stations if Possible
Untested Station Uses Results from a Tested Station
Link ONLY if the Following are Similar:– Equipment– Spacing – Pressures
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Let’s go get wet Let’s go get wet and dirty!and dirty!