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Water Management Certification The California Landscape Contractors Association Copyright 2006, 2007 by CLCA Study Guide Version 1.3 Developed by Scott.

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Presentation on theme: "Water Management Certification The California Landscape Contractors Association Copyright 2006, 2007 by CLCA Study Guide Version 1.3 Developed by Scott."— Presentation transcript:

1 Water Management Certification The California Landscape Contractors Association Copyright 2006, 2007 by CLCA Study Guide Version 1.3 Developed by Scott McGilvrayJohn Moore Gary Kah Chris Willig

2 This Study Guide describes a proven approach to Good Landscape Water Management and will help you prepare for the CLCA Water Management Certification Exam This is a Hyperlink document, which allows you to navigate within this Guide by clicking on Underlined Text IntroductionIntroduction (would take you to the Introduction page) or by clicking on Navigation Symbols and Arrows... Table of Contents Previous Page Next Page You can also browse the Internet for additional information by clicking on an underlined word in Blue CLCA Home PageCLCA Home Page For Assistance by , Contact Us by Clicking HereClicking Here Preface

3 Table of Contents 1. Introduction Introduction 2. Objectives Objectives 3. Path to Certification Path to Certification 4. Glossary Glossary 5. Get On Budget Checklist Get On Budget Checklist 6. Basic Principles of Irrigation Basic Principles of Irrigation 7. Budgeting and Tracking Budgeting and Tracking 8. Controller Programming Controller Programming 9. Certification in 5 Steps Certification in 5 Steps 10. Affiliates Affiliates 11. Supplemental FilesSupplemental Files

4 Introduction The California Landscape Contractors Association (CLCA) recognizes that water is a precious natural resource and that the key to landscape water conservation is efficient irrigation management. Urban CII Landscape Water Use and Efficiency in California, a study prepared for CLCA by Dr. John B. Whitcomb, suggests that a conversion from turf to other irrigated plants will not necessarily result in lower water use given current water management practices. In other words, efficient irrigation management is generally more important than planting "water efficient" plants. - See More -- See More - Most irrigators know that plants and trees suffer without enough water. But do you know that over-watering can take an even greater toll on your landscape? Soggy, water-soaked soil prevents air and nutrients from reaching plant roots and can invite problems like root rot and other plant diseases. Significant water savings can be realized by implementing a few simple practices, often with dramatic results. The CLCA Water Management Certification Program provides a practical approach that will help you implement efficient watering practices to keep your customers landscapes green and healthy -- and provide a return on your Investment in Knowledge as well. Today, giving a California Landscape the water it needs -- and only the water it needs -- is a matter of dollars and sense.

5 Provide Customers With Good-to- Excellent Landscape Appearance While Using the Right Amount of WaterUsing the Right Amount of Water Charge Customers a Fair Price for Water Management Services Objectives of Water Management

6 Path to Certification Use this Study Guide and CLCAs Supplemental Files to prepare for the CLCA Water Management Certification Exam (note: Certification is also open to non-CLCA members)Supplemental Files Pass the exam, and you will have earned Provisional Certification Status Document that you have maintained an actual landscape for 1 year at or under 100% of ETo*, and you can become a Certified Landscape Water Manager (CLWM) Expert Certification Status: Maintain 5 sites for 12 consecutive months at or under 80% of ETo* Document Continuing On-budget Performance (appropriate to your Certified Level) to maintain your Certification Status * Minus 30% of Rainfall occurring during the Irrigation Season

7 Glossary CIMIS - California Irrigation Management Information System ETo - Reference Evapotranspiration (measured in Inches) GIS - Geographic Information System (provides drawing tools that can be used to measure landscape areas using aerial photos) HCF or CCF - Hundred Cubic Feet = 748 Gallons KGal - One Thousand Gallons = 1,000 Gallons On Budget - A site that meets or exceeds minimum standards as defined here: CLCA On Budget StandardCLCA On Budget Standard If a local jurisdiction uses more restrictive standards, the local standard will prevail. * Comprehensive Glossary provided by the Irrigation AssociationComprehensive Glossary

8 Get on Budget Checklist Five Steps -- Check Them Off As Completed 1. Map & Measure the Site Map & Measure the Site 2. Document Potential Water and Cost Savings Document Potential Water and Cost Savings 3. Perform Site Inspection and Tune-Up Perform Site Inspection and Tune-Up 4. Establish Schedules and Program Controllers Establish Schedules and Program Controllers 5. Feedback Loop Feedback Loop

9 1. Add Remote Capability to ControllersAdd Remote Capability to Controllers 2. Map Irrigated Area by HydrozoneMap Irrigated Area by Hydrozone Measure the Area of Hydrozones using GIS Tools (such as Google Earth Pro or TerraServer), Aerial Photos (Google Earth) or a Measuring Wheel Measure the Area of Hydrozones using Google Earth Pro TerraServerGoogle Earth Measuring Wheel Create a Site Map by Station and Controller 3. Calculate Baseline Water Budget Register with CIMIS to Obtain Average Monthly ETo Data To determine your Baseline Water Usage, use the CLCA Water Budget Calculator located in the supplemental files. Step 1- Map & Measure the Site

10 Hydrozone Map and Water Budget

11 1. Obtain Irrigation Meter (or Mixed Use Meter) Records 2. Compare Baseline Water Use to Recent Water Use 3. Multiply Excess Use by Local Water Rates ($/HCF)Local Water Rates 4. Compare Potential Savings (Line 3) to Water Management CostsWater Management Costs 5. Use Benefit/Cost Analysis to Decide to Bid Water Management Services Use Benefit/Cost Analysis to Decide to Bid Water Management Services Step 2 - Document Potential Savings

12 Step 3 - Site Inspection & Tune-Up 1. Inspect (System Walk-through) Document Problems by Station (see Diagnostic Guide & Photographs)Diagnostic Guide & Photographs) Submit Punchlist to CustomerPunchlist Obtain Customer Approval for Punchlist RepairsCustomer 2. Site Tune Up Remove & Replace Damaged Equipment Adjust Pressures at Each Valve (Flow Control) Align (Arcs/Grade) and Straighten SprinklersStraighten Assess Nozzle Correctness and Make Changes Consider Check Valves for Low Elevation Heads

13 1. Assign Each Valve to a Controller Program Program 1: Turf & Annual Color Program 2: Groundcover & Shrubs Program 3: Shrubs & Trees Program 4: Special (e.g., Natives) Step 4 - Establish Schedules & Controllers

14 2. Use the CLCA Irrigation Scheduler to set:CLCA Irrigation Scheduler Minutes per Cycle (Consider Time to Runoff) Minutes per Cycle Cycles Per Day, Days/Week Cycles Per DayDays/Week Adjust for Planting Density, Micro-climate, Slope Sample Irrigation Schedule Note: Other software programs including Green Leaf (fees or subscriptions may apply) andGreen Leaf Water Budget Manager (free) are also available for this purpose. Water Budget Manager 3. After 1 week with New Schedules on a Test Area, Inspect with Soil Probe; Modify Schedules If Needed Step 4 - Continued...

15 Step 5 - Feedback Loop (1 of 2) 1. Read Water Meters 1st Week of the Month Submit meter readings to CLCA as directed You can produce a monthly report using CLCAs online software. You can produce a monthly report using CLCAs online software.

16 Step 5 - Feedback Loop (2 of 2) 1. Irrigation Schedule Adjustments Seasonal Adjustment for Current Month Site Walkthrough Adjustments Soil Probe Used To Inspect Rootzone Wet or Dry Spots Observed Changes in Plant Appearance Adjustment Methods Days Per Week Starts per Day Percent Adjust Key (+/- 20%)

17 Basic Principles of Irrigation Weather Plants Soils Sprinklers Controllers

18 Water Budgeting & Tracking Area Measurement Measuring Wheel Aerial Photography Google Earth GIS Area Measurement Google Earth Pro Terra Server Hydrozones Species, Density, Microclimate, Sprinkler Type Weather data CIMIS and Weather Based Irrigation Controllers CIMISWeather Based Irrigation Controllers Meter Reading (At Least Monthly) Meter Reading

19 Review Characteristics of Site Controllers Basics Group Into Hydrozones Reduce Runtimes and Add Start Times to Avoid Runoff Avoid Program Overlap to Ensure Adequate Pressures Monitor Soil Moisture and Plant Appearance Conventional Electronic Controllers Use Days per Week, Starts per day and Percent Adjust Weather-Based Irrigation Controllers Calibrate at Installation, Monitor performance Controller Programming

20 Certification in 5 Steps 1. Read the Certification Program SummaryCertification Program Summary 2. Work through this Study Guide 3. Pass the Certification Exam and Obtain Provisional CertificationCertification Exam 4. Enter at least one irrigated site in the Performance Program DatabasePerformance Program 5. Document 1 year of On Budget Performance and you will achieve full CLCA Water Management Certification (Basic Level)CLCA Water Management Certification

21 Links to Affiliates California Landscape Contractors Association California Urban Water Conservation Council Cooperative Extension Service Irrigation Association Irrigation Association SWAT Irvine Ranch Water District ITRC (Cal Poly) Santa Clara Valley Water District US Bureau of Reclamation

22 Supplemental Materials Follow Note: Some Slides are Duplicated to Facilitate Study Guide Navigation

23 Add Remote Capability

24 Baseline Water Use - Historical Weather

25 Download CLCA Mapping Handbook Mapping Information

26 Certification Basic Principles: Weather (1 of 2) Weather causes Plants to withdraw Water from the Root zone (via root-hairs) which must then be replaced by Irrigation (or Rainfall) Weather Affects Irrigation Requirements through: Solar Radiation Temperature Wind Humidity Rainfall

27 Certification Basic Principles: Weather (2 of 2) Long Days with Bright, Warm, Windy, Dry Weather Increases Irrigation Water Requirements, while Short Days with Cloudy, Cool, Calm, Humid Weather Decreases Requirements It is difficult for humans to perceive the full effect of recent changes in weather, therefore we use computerized weather stations to provide Quantification of Weather An Excellent Source of Weather Data within California is CIMISCIMIS

28 Certification Basic Principles: Plants Plants use water (obtained in almost all cases through their roots) to perform numerous chores, ranging from photosynthesis to cooling to providing strength in stems Unfortunately, there are few monocultures in landscaping; you will need to water to the requirement of the plant with the highest Demand The WUCOLS Study by the California Cooperative Extension Service assigned a Water Use Index to thousands of the most common plants:WUCOLS Study High, Medium, Low and Very Low Water Use The WUCOLS Study suggests that water use can range over a range of 500% or more based on the species of plant being irrigated

29 Certification Basic Principles: Soils Soils Support Plants in the Landscape and Provide a Pathway for Nutrients and Water to reach the Plants Roots A Healthy Soil that is not overly wet also allows Oxygen to reach the roots In Planning Irrigation Schedules, it is important to know how much water can be stored in the rootzone of the plant as well as how fast water can penetrate into the rootzone Soils such as Clays and Sands must be irrigated very differently to achieve good water use efficiency

30 Certification Basic Principles: Sprinklers (1 of 2) Water is applied to the landscape at a rate low enough so that it can be stored in the Root zone using: All of these devices can achieve good efficiency with good design, installation, maintenance and scheduling Sprinklers Geared Rotors Impact Rotors Rotating Stream Rotors Fixed & Popup Sprays MicroSpray Drip Emitters Single Port Multi-port Dripline Bubblers

31 Certification Basic Principles: Sprinklers (2 of 2) The Key to achieving good efficiency at any Site is to Inspect and Tune-up the sprinklers to ensure reasonable performance and then to Adjust Schedules Until You are Dialed In Performance is Measured in two ways: How Fast is Water Being Applied = Precipitation Rate How Evenly is Water Being Applied = Distribution Uniformity If Good Judgment and Adjustments Do Not Produce Acceptable Results, Field Tests can Document the Performance of Sprinklers and Provide Better Schedules

32 Certification Basic Principles: Controllers (1 of 2) Todays Electronic Irrigation Controllers offer Many Features that can be used to keep a landscape On Budget Todays Controllers typically have: Multiple Programs Multiple Start Times/Cycles A Percentage Adjustment to Track Changes in Weather Even older mechanical clocks, if programmed correctly and updated regularly, can successfully manage irrigations

33 Certification Basic Principles: Controllers (2 of 2) Weather-Based Irrigation Controllers (WBIC) are now entering service and they have the potential to greatly improve irrigation management efficiency WBIC receive updated weather data from remote sources or sense local changes in weather parameters and then modify irrigation runtimes accordingly The Key to Success for WBIC is proper installation and calibration of the device so that it knows the applied water requirement of each hydrozone and the actual performance of the sprinklers serving each hydrozone

34 Average $2.00/HCF California Irrigation Water Costs

35 Water Management Cost Estimate

36 Water Management Pays Off Sample Irrigation Schedule

37 Sample Inspection Punchlist Sample Irrigation Schedule

38 Problems! Problems

39 Scheduling Guide 1

40 Scheduling Guide II

41 Sample Irrigation Schedule

42 photo courtesy of RainBird Irrigation Valve Flow Control

43 Monthly Report

44 Meter Reading (Billing Units) = 1,213 HCF

45 Certification Exam Offered periodically at locations throughout California Hosted by participating Water Utilities Exam Format: 50 multiple choice questions 2 hours, closed book (equations and definitions will be provided); electronic calculators permitted Passing Grade = 70% (35 Correct Answers)

46 Performance Program On Budget Performance with Good-to-Excellent Appearance is The Only True Measure of Water Management Success Therefore, obtaining CLCA Water Management Certification Depends on: 1. Passing the Certification Exam to achieve Provisional Status, AND THEN Managing a landscape(s) for at least 12 consecutive months and documenting On Budget Performance.On Budget Performance 3. A Site Already On Budget can be Documented

47 CLCA Water Management Certification Offered by the California Landscape Contractors Association Certified Water Managers in Good Standing (Basic and Expert) will be Listed in an Online Directory Exam Fee = $100 (Non-CLCA members = $200) Annual Site and Certification Fees Continuing Performance Requirement: Document management of required number of Properties With On Budget Performance each year

48 CLCA Member Pricing Structure Type Annual Fee Site fee Setup Fee Total Description Level 1 $100 $40 $25 $165 1 manager, 1 site Level 2 $500 $0 $0 $500 3 managers, 15 sites Level 3 $1,000 $0 $0 $1,000 5 managers, 50 sites Level 4 $500 $0 $0 $500 5 managers, 50 sites NOTE: Level 3 Participating Companies can purchase additional blocks of 5 Managers / 50 sites for an annual fee of $500. Level 4 participants: 10 Managers 100 Sites $1,500 / Year $15.00 per site / per year $1.25 per site / per month

49 Supplemental Files* Supplemental Files can be downloaded to your computer by Clicking on the link below: Click Here Download* and Store the Supplemental Files-CLCA Water file to an appropriate folder on your computer Double-click (Open) the zip file to Un-zip the files * Note: the Zip file only needs to be downloaded once

50 CLCAs Water Management Certification Program was made possible by the strong support of our partners. Water Management Certification Program Founding Partners Charter Partner

51 CLCAs Water Management Certification Program Part of the solution to Californias Water Crisis... The California Landscape Contractors Association

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