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Town of Castle Rock "Across the Board with Conservation" Progreen Expo 2/09/10

Town of Castle Rock "Across the Board with Conservation" Progreen Expo 2/09/10

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    \\Utdc\Ut Users\Crichards\Desktop\Pro Green 2010 \\Utdc\Ut Users\Crichards\Desktop\Pro Green 2010 Presentation Transcript

    • Across the Board with Conservation Rick Schultz, Water Conservation Specialist Ruth Stadler, Water Conservation Plan Reviewer Billie Owens, Program Analyst Kyle Sipes, Stormwater Inspector February 9, 2010
    • Why are we here? •Education •Regulations •Rates •Customer Assistance Programs
    • Education
    • Education • Water Wiser • Lunch and Learn Programs • Irrigation Audit Program • Elementary School Presentations • Demonstration Gardens • Landscaper Registration
    • Water Wiser Workshops • Began in 2003 • Residential customers • Currently 1260 participants • Alternatives to traditional landscaping • More efficient ways to irrigation • Exempt from every third day restrictions
    • Lunch and Learn Programs • Less formal than Water Wiser • Shorter in length • Intended for residential customers • Covers such topics as: – Xeriscape design – Spring start up and timer programming – Festival Park plant tour – Landscape and sprinkler winterization
    • Presentations and Tours • School visits – Town of Castle Rock – Douglas County Water Resource Authority • Water plant tours • Partnership with DCWRA – Homeowner’s associations – Management companies – Landscape contractors
    • Demonstration Gardens • Festival Park • Ray Waterman Water Treatment Plant • Utilities office • Crystal Valley Ranch Recreation Center
    • Registration for Landscape Professionals • Five categories of registration – State licensed landscape architects – Landscape designers – Irrigation designers – Landscape/Irrigation installation contractors – Landscape/Irrigation maintenance contractors • Getting it right the first time saves your client time and money
    • Regulations
    • February 9, 2010
    • Multifamily Section • Native and/or drought tolerant turf grasses shall be used in all areas. – No bluegrass on streetscape – Moderate water use grass in passive use areas Landscape Regulations Section 3.2.1 C1a
    • Residential Properties by Developer/Builder Turf Limitations Lot Size (sq.ft.) Max. Turf (sq.ft.) </= 7,000 3,500 7,001-17,000 5,525 >17,000 50% of non-impervious Landscape Regulations Section 3.2.2 C3a-d
    • Commercial Properties • No high water use plants – No Kentucky bluegrass – No Cottonwoods • Separate irrigation service connection are required Landscape Regulations Section 3.3.2 B1 and 3.3.2 D2
    • Required Soil Improvement Verification of organic matter before certificate of occupancy (CO) Landscape Regulations Section 3.3.2 C3 and 3.3.4 C3
    • Streetscape Requirements Area Width Plant Type Irrigation Type <4 ft. None None 4-10 ft. None/Low Water Drip >10 ft. Low Water Overhead Landscape Regulations Section 3.3.4 E f-m
    • Irrigation Systems • Plant types must match irrigation method • Hydrozones are to be noted on the plans • Irrigation must be able to meet demand requirement Landscape Regulations Section 3.3.2 B1 and 3.3.2 D2
    • Irrigation Systems • Details of the irrigation system – Special times for residential and commercial • Application rates not to exceed 1.5”/week • Rain sensing device required Landscape Regulations Section 4.2.4
    • Registration of Landscape Professionals • Registration types: – Landscape architects and designers – Landscape installers – Landscape maintenance professionals • Must have registration number to complete project in Town Landscape Regulations Section 5
    • Plant Selection • Not hardy in Castle Rock: – Many xeric ornamental grasses – Many perennials – Broadleaf evergreen shrubs Landscape Regulations Section 6
    • Forms • Large Irrigator Temporary Irrigation Exemption • Irrigation Exemption for Residential • Registration of Landscape Professionals • Landscape Plan Checklist • Landscaper Inspection Affidavit • Irrigation Inspection Affidavit
    • Planting Details • Shrub • Perennial • Deciduous tree • Evergreen
    • Cross Connection Control • All backflow assemblies shall be approved by the Utilities Department and/or designee prior to installation • For more information, contact Sean Davin 720-733-1352 sdavin@CRgov.com Landscape Regulations Section 13.06
    • Water Restrictions • Every third day • Programmable controller required – Battery back up Landscape Regulations Chapters 13.15 and 13.22
    • Irrigated Public Area Water Conservation Landscape Regulations Chapters 13.20
    • Composite Landscape Water Use Rating System N CLWUR = < K=1 LWUR K x IAK / TA < (CLWUR< 2.5) Definitions LWURK Water use rating for each landscape zone IA K Irrigation area for each landscape zone TA Total area for all landscape zones Landscape Regulations Chapter 13.20
    • Net Result of Public Irrigated Water Ordinance • Reduces high water use vegetation on a project • Streetscapes need a “low” water use plant – Buffalo grass – Blue grama – Wheat grass blends – Fescue blends
    • Water Use Management Plan (WUMP) • Designed as a demand management tool
    • Water Use Management Plan (WUMP) • Sets demand management time period – May through August – Designates addresses to – Requires watering during daily time periods 5 – 10 a.m. and 5 – 10 p.m. – Every third day watering – Explains mailing of water schedules to resident Water Use Management Plan
    • Water Use Management Plan (WUMP) • Defines water waste – Excessive pooling or runoff of site – Impervious surface – Street washing – Unrestricted water from a hose or faucet
    • Examples – Excessive pooling or runoff of site – Impervious surface
    • Large/Common Area/Public Area Irrigation • Defines the area as >10,000 sq.ft. • Requires watering to be 11 p.m. to 4 a.m. every third day • Submittal of irrigation schedules to the Town for review and approval Water Use Management Plan
    • Alternative Irrigation Schedules • Exemptions for establishment of new plant material – 30 days for new sod – 45 days for new seed • Permit obtained through Utilities – Proper soil amendment has been added – Irrigation backflow prevention device has been tested Water Use Management Plan
    • Defines Water Monitors • Drives through the Town • Monitors water use • Must witness violation • Violations may be assessed a surcharge • Notices are sent to owner/occupant Water Use Management Plan
    • Town Registration of Landscape Professionals • Requires attendance at annual seminar • Passing score on written test • Test focus is on the “Water Use Management Plan” and “Landscape Regulations”
    • Rates February 9, 2010
    • What is an individualized/water budget rate structure? Why do we have one?
    • Rate Structure Water Budget Most C O Budget/Individualized N S Increasing Block E R Seasonal V Uniform A T Declining Block I O Flat Rate N Least
    • Achieving Conservation Through a Rate Structure • Water budgets as an innovative option – Success of Irvine Ranch Water District caught the Town’s attention – Need to guide customers to use water more efficiently – Existing rate structure did not provide a strong price signal • Customer management tool • Becomes part of water resources management strategy
    • Importance of an individualized rate structure Castle Rock’s Water Challenges – We Are Different! Nearly 100% of Castle Rock’s water comes from deep groundwater aquifers A wellfield costs $1 million to drill (2 wells!) Design/construction adds $1.2-1.4 million Deepest aquifer requires 500-600 HP pump Other costs Average winter electrical costs $85,000/month Deep Groundwater Wells Peak month electrical costs $256,000 (3x average winter month) Water levels are declining! This is a finite resource!
    • Level of complexity • Highly specific to relatively homogenious • Perfect equity in rate structures is extremely difficult and complex
    • The KISS Principle • Base the rate structure on the Town’s goals and objectives – Conservation is important – Cost of service based – Revenue neutral • Customer Base – Mostly residential – Lot sizes vary – Level of detail to have impact
    • Tiered rate structure vs. individual Surcharge Surcharge <30k <40k +$6.81 +$6.81 15k+ Excess 15k+ $6.81 $6.81 $6.861 $ $ 5-15k 5-15k Outdoor $4.10 $4.10 (Irrigation) $4.10 1-5k Indoor Indoor $2.16 (AWC) $2.16 $2.16 Gallons Gallons 2008 & 2009 adopted a new structure
    • Basics of Individualized Rate Structures • Individualized determination of monthly water use based on indoor and outdoor usage characteristics • Indoor water use often based on people per household, average winter consumption, or specified allotment Outdoor water use Landscaped area Vegetation type Monthly Evapotranspiration (ET)
    • Taking aim – my indoor target SAMPLE Single Family Customer Indoor Budget Average Winter Monthly 16,000 Consumption 14,000 (November – March) 12,000 Indoor 1,000 gallons January 5,000 10,000 February 4,000 March 5,000 8,000 Indoor April 5,000 May 5,000 6,000 June 5,000 July 5,000 4,000 August 5,000 September 5,000 2,000 October 5,000 November 5,000 0 r December 5,000 ry y r ne ch r ly ril er be st ay be be ar Ju ua Ap gu ob ar Ju M em nu em em br M Au ct Ja ov Fe ec pt O Indoor Use Year Round N Se D (5,000+4,000+5,000+5,000) ÷ 4 = 5,000
    • Aerial of property with parcel line
    • Taking aim – my outdoor target Infrared imagery showing irrigated areas *Residential Customers Capped at 7,000 sq.ft.
    • Taking aim – my water outdoor target Indoor Use Based on AWMC Indoor Outdoor SAMPLE January 5,000 0 February 4,000 0 Single Family Customer March 5,000 0 April 5,000 1,000 May 5,000 8,000 18,000 June 5,000 11,000 Seasonal 16,000 July 5,000 11,000 Plant 14,000 1 ,0 0 0 g a llo n s August 5,000 8,000 Needs 12,000 Outdoor September 5,000 7,000 10,000 (80% of 8,000 Indoor October 5,000 1,000 ET) 6,000 November 5,000 0 December 5,000 0 4,000 59,000 47,000 2,000 0 Irrigation A u ly ril ne y h ve r F e uar y p t st c e er er O c ber Ma y Ma Ju N o obe rc Ap r Se g u Ju De mb mb ua em n t br Ja Based on irrigated area
    • My Target - Summary Proposed Rate Structure Budget (kgal) Outdoor Budget Budget Indoor Budget Average Customer Total Month 18,000 Jan 5,000 0 5,000 16,000 Feb 5,000 0 5,000 14,000 Mar 5,000 0 5,000 1,000 gallons 12,000 Apr 5,000 7,000 12,000 May 5,000 9,000 14,000 10,000 Outdoor Budget Jun 5,000 9,000 14,000 8,000 Indoor Budget Jul 5,000 11,000 16,000 6,000 Aug 5,000 10,000 15,000 4,000 Sep 5,000 7,000 12,000 2,000 Oct 5,000 4,000 9,000 Nov 5,000 0 5,000 0 1 Outdoor5 Budget 8 2 3 4 6 7 9 10 11 12 13 Dec 5,000 0 5,000 Customized for EVERY water customer!
    • Challenges – DATA Determining Indoor Water Use • Accurately reflecting indoor use (Nov-Feb) • Making sure customers get enough budget • Allowing for variances in indoor use – guests or snow birds • Establishing for brand new customers with no history
    • Challenges – DATA Determining Irrigated Area • Accurately depicting irrigated area • Maintaining geographic integrity of parcel boundaries • Finding a “common link” between data bases • How often to do this process Infra-red Imagery
    • Challenges – DATA Integrating Information Indoor winter consumption Utility Billing + System Infra-red Imaging (Irrigated Area) John Doe Homeowner Account Number 123 + 123 Castle Rock Drive AWMC = 5,000 Geospatial Irrigated Area = 2,700 sq.ft. Image July Outdoor Water Budget = (Parcels) 11,000 Gallons + Common Unique Identifier/ Data Link (Addresses)
    • Results…so far • Water savings??? • We know our customers much better! • We understand the need for outreach and communications - before, during and after implementation! • We have developed policies to address common and special circumstances • We have standardized business practices
    • Results…so far • INCREASING AWARENESS! High water users Low water users Equity inquiries
    • Importance of an Individualized Water Rate Structure Castle Rock faces major water resource challenges Conservation is our most cost-effective water resource Water budgets are a proven method of saving water A water budget rate structure is one piece of a comprehensive strategy that will help us meet our conservation goals Conservation Strategy Education Regulations Rates Customer Assistance Programs
    • Customer Assistance Programs
    • Smartscape Renovation • New in 2009 • Residential customers only • Removal of high water use plants • Replace with water wise landscaping • More efficient irrigation • $1/sq.ft. - $1,500 maximum
    • Before After
    • Rain Sensors • New in 2009 • Residential customers only • 50% to a maximum of $50
    • Rotary Nozzles • New in 2009 • Offered to residential and commercial customers • Lower flow and application rate • Less effected by wind and pressure • Up to $5/nozzle – Residential maximum $200 – Commercial maximum $2,000
    • Three-day irrigation timer • Residential customers • Replaces older controllers unable to be programmed for every third day • $25
    • High-efficiency clothes washers • Residential customers only • Water factor rating of 6 or less • $150
    • Smart controller • Offered to residential and commercial customers – Residential 50%; maximum $300 – Commercial 50%; maximum $1,500
    • Irrigation Audits • Center for ReSource Conservation • 2008 – 29 large properties – 3 residential • 2009 – 29 large properties – 58 residential
    • Irrigation Audits
    • How about Efficiency? Example: 34 inches * 0.8 * 1,300 ft2 * 0.62 = 50,984 0.43 34 inches * 0.8 * 1,300 ft2 * 0.62 = 29,626 0.74
    • Water Quality and Stormwater
    • Staging and Storage of Materials Building materials shall not be stored on streets. Building materials can block engineered flow lines and are safety hazards for motor vehicles .
    • Staging and Storage of Materials Landscaper shall store landscape materials on property with the appropriate BMPs. BMP defined as “a physical, structural,or managerial practice or device that prevents or reduces erosion or sediment”.
    • Staging and Storage of Materials
    • Staging and Storage of Materials Landscaper shall store landscape materials on property with the appropriate BMPs.
    • What can cause erosion? Wind, water, ice. Reinstall BMPs until germination occurs.
    • Soil Inspections • Installing landscapes within the Town • Request inspection at Utilities Department • Permit card must be signed by DESC Inspector – Registered individual – At final grade • Landscape Inspection Affidavit to be completed and signed • After irrigation system has been installed • Prior to installation of mulch and plant material • Finish grade to be within 2/10 of a foot
    • Soil Inspections • Proper soil amendments – As designed on the approved plans OR – Minimum 3 cubic yards/1,000 sq. ft. • Proper till depth 4” minimum depth – Random core sampling and soil analysis may occur
    • Information Center • New conservation website – coming soon! • Local ET and weather information on web • New interactive virtual home and garden tour coming soon
    • Where You Can Find Us Town of Castle Rock Utilities Department 175 Kellogg Court Castle Rock, CO 80109 720-733-6000 WWW.CRGov.com
    • Contact Information Rick Schultz Ruth Stadler rschultz@CRgov.com rstadler@CRgov.com Billie Owens Kyle Sipes bowens@CRgov.com ksipes@CRgov.com