Water Application Management in an Urban Setting

Transcription

1 Water Application Management in an Urban Setting Rogelio Matta - Senior Administrative Analyst Joe Field - GIS Administrator Erik Garwick Park Supervisor

2 Acknowledgments We are fortunate in that, from our City Council down to the people doing the work in the field we operate as a team. This presentation demonstrates a small part of our GIS effort in Fontana. We would like to acknowledge Senior management, especially our Public Works Director for Having the foresight to support the GIS effort in our City. We also want to acknowledge the Information Technology Department for their contribution to this effort and this project in particular.

3 Agenda Survey Background & Context Project Goals & Objectives Water Application Education How we use Technology to do More with Less

4 Survey Says I can adjust my sprinkler clock I adjust it frequently, at least: - Yearly - Quarterly - Monthly I don t even know where it is My Lawn Guy does it I think

5 Background Fontana, California - Population 200k+ Irrigated Landscape Area 23,000,000 Square Feet (530 Acres) Split between 70 Special Districts with multiple annexations and the General Fund 480 Water Meters 430 Irrigation Controllers 2 Landscape Contractors

6 Context Water Conservation is a Hot Topic Drought Conditions in Southern California Monitoring the Contractor Water Management Practices Based on Methodology in City s Landscape Ordinance Fontana - Special Assessment Districts

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10 Water Conservation - Hot Topic Specific requirement to set water application targets for existing landscape areas. The City is taking action to reduce water use. By adopting methodology recommended in Landscape Ordinance Contractor is responsible for water application per our current landscape maintenance contract

11 Project Goal Goal - To provide city staff with a simple to use GIS tool to monitor the landscape contractor s water application management practices to insure conformity with our Landscape ordinance.

12 Project Objectives To determine water application targets To use actual consumption records from external water suppliers to provide feedback on progress To leverage existing GIS data To do more with less using technology - Weather Station Information - Computer Central Control - Weather Sensitive Controllers - GIS based Reporting

13 Water Application

14 Consumption Monitoring How Much is too Much? Determine - What we should be using (Budget Target) Compare - What we use (Actual Consumption) We have chosen GIS as a Measurement & Monitor Tool

15 You can t manage what you don t measure How much area are we watering? How much water can be applied over a given period? What are you applying water to? - Plants Types - Soil Type

16 Landscape Ordinance Water Application Targets - New areas are base on the City s Landscape Ordinance - Existing Landscape areas are closely base on City s Landscape Ordinance Monitor and Measure Contractor performance using the same standard

17 How Much Water Do I Apply? The question is How much water do I have to replace? Evapotranspiration (Loss) - Evaporation - Transpiration Other Loss Factors - Runoff - Water Table In Fontana, California we have to replace about 57 a year for turf areas that is lost through evapotranspiration.

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19 Ingredients for Success Water Irrigation Systems Application Rates (Sprinklers) - Precipitation Rates - System Efficiency - Soil Capacity Weather Sensitive Central Control System (Clock) - Irrigation Controllers - Weather Station Consumption Monitoring (Water Bill) - Target Consumption: Budgets, Eto, CIMIS - Actual Consumption Records

20 Sprinkler Precipitation Rates How much water in inches do your sprinklers apply in 1 minute. - Pr = x Total GPM Total Area - Pr - Precipitation rate in inches per hour A constant that converts gallons per minute (GPM) to inches per hour. It is derived from 60 minutes per hour divided by 7.48 gallons per cubic foot. times 12 inches per foot. - Total GPM - The cumulative flow from all sprinklers in the specified area, in gallons per minute (refer to sprinkler charts) - Total Area - The area being irrigated, in square feet.

21 Central Control

22 Target Budget Formula ETo x PF x EF x A x 36.8 / ND = Daily Consumption Evapotranspiration (ETo) = Plant Factor (PF) =.80 Efficiency Factor (EF) = 1.41 Area (A) = Per Meter 36.8 Converts to Units (100 cubic feet) Number of Days in the Month (ND)

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24 System-Wide Annual Consumption

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26 Oak Park PR by Zone

27 Program

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29 Data Collection Meter Location GPS CMMS Data Base (Lucity)

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31 Water Meter Location Picture (XY)

32 Water Meter Number Picture (XY)

33 GIS Data Building on the Foundation - Ortho - Landscape Layer - Special Districts Layer - Water Meter Layer For our WAM program - We use the area of the water meter as our constant - We compare the water application target to actual consumption - Contractors and City staff update central controller program

34 Parks

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36 Meters

37 Meter area

38 Water Application Web Map Goal To provide a simple interface for city staff and the contractors to view consumption status of a water meter. - Green = Good - Blue = Under Watering - Red = Over Watering

39 DEMO

40 January 2014

41 February 2014

42 March 2014

43 Cumulative

44 Questions