Stormwater Charge and Credit Program Multi-Residential Credit Program Seminar December 7 th , 2015 Dr. Victoria Kramkowski Stormwater Charge Program Coordinator Transportation & Works Department
Stormwater in Mississauga Why is the City introducing a Stormwater Charge?
Mississauga's stormwater infrastructure has a current replacement value of $1.9 billion 3
2000km of storm sewers Photo Credit: Aaron Volkening 200km of waterways 4
57 SWM ponds 1000 outlets 5
51,000 catch basins 250km of ditches and swales 6
Increased investment is needed to maintain level of service and state of good repair 7
Flood mitigation Erosion control 8
Replace aging pipes SWM pond clean-outs 9
By-law enforcement and spill response Water quality control 10
Changing climate, changing storms 11
User fees are a fair and dedicated way to fund this essential service 12
Stormwater Charges How are charges assessed and applied?
Stormwater Charge Calculation Stormwater Stormwater Stormwater Charge Rate Charge Assessment ($/billing unit) ($) (billing units) 14
Assessment: Residential Properties Ti Tier Billin illing U Unit its Smallest 0.5 Small 0.7 REPLACE Medium 1.0 Large 1.2 Largest 1.7 15
Assessment: Multi-Residential and Non- Residential Properties • Impervious (hard) surface area of property individually assessed • 1.0 Billing Unit per 267m 2 (2,874 sq. ft.) of hard surface area • Charge will appear on Peel water bill or storm-water only bill 16
Stormwater Estimator Look up your property at www.s .storm rmwat aterchar arge ge.ca 17
Stormwater Credits How are on-site stormwater works considered?
Usually on Established Private Property Principles May occur on Private Property or Public System Credits will reward • stormwater Best Usually in Management Practices Public System Low Impact (BMPs) providing direct Development and Emerging Practices City-wide benefits Traditional Original Public Infrastructure and System Watercourses Credit amounts will be • proportional to the benefit received by City’s stormwater program 19
Image Credit: Grand Valley State Univresity (www.gvsu.edu/stormwater) Not Permeable Permeable Undergr Under ground ound Det etent ention F on Facility Per ermea meabl ble P e Pavement ement Green Roof een Roofs Bios oswa wales es 20 20
Program Basics • Multi-Residential and Non-Residential properties are eligible • Maximum credit is 50% • Credits effective for 5-year, renewable terms • Applications are accepted for existing or proposed stormwater BMPs • Program provides flexibility to property owners in the BMP types they implement 21
Application Package • All application packages to consist of: – Completed application form – Supporting documentation, certified by qualified P.Eng. • May submit online, by mail, or in person 22
Application Form and Manual available at www.stormwatercharge.ca 23
Application Types • New Credit – First time credit for existing or proposed works Focused on how • Credit Update BMPs meet credit criteria – Update credit amount to reflect changes to stormwater BMPs • Credit Renewal Focused on how – Approved credit about to be or BMPs remain in recently expired state of good repair 24
Review Process (Existing BMP) • Step 1: Screen application for completeness • Step 2: Technical review – Response to Applicant within 30 days – Site visit may be required – Reviewer may have comments for Applicant to address • Step 3: Decision on credit approval • Step 4: Credit made effective on account 25
Review Process (Proposed BMP) • Step 1: Screen application for completeness • Step 2: Technical review • Step 3: Decision on pre-approval • Step 4: Applicant submits certification that BMPs are constructed and operational • Step 5: Review and decision • Step 6: Credit made effective on account 26
Credit Schedule Category Evaluation Criteria Weighting Percent reduction of the 100-year post- Peak Flow development flow to pre-development Up to 40% Reduction conditions of the site Total No More than 50% Water Consistent with Provincial criteria for Quality Up to 10% enhanced treatment Treatment Runoff Percent capture of first 15 mm of rainfall Volume Up to 15% during a single rainfall event Reduction Pollution Develop and implement a pollution Up to 5% Prevention prevention plan 27
Peak Flow Reduction (up to 40%) • For full credit: Control 100-year post- development flow to 100-year pre- development rate from entire impervious surface area(s) of site Fraction Credit of Target 40% Amount Met 28
Water Quality Treatment (up to 10%) • For full credit: Direct all impervious areas of site to an on-site BMP meeting criteria for water quality Fraction of Credit Impervious 10% Areas Amount Serviced 29
Runoff Volume Reduction (up to 15%) • For full credit: First 15mm of rainfall landing on all impervious areas of site during a single rainfall event is captured Each mm Credit of rainfall 1% Amount captured 30
Pollution Prevention Plan (up to 5%) • For full credit: Pollution Prevention Plan satisfies criteria set out in Schedule ‘A’ of the City’s Storm Sewer By-law 259-05 and is fully implemented Percent of Pollution Prevention Plan Credit Amount Implemented 40% 2% 60% 3% 80% 4% 100% 5% 31
Terms and Conditions • Standard terms and conditions of approval – May also be site specific • Expectations for operation, inspection and maintenance of BMPs – Logs to be kept by Applicant/Owner for compliance inspection and/or credit renewal 32
Effective Dates for Approved Credits • Applications received in 2016 will be retroactive to January 1 st , 2016 or when BMP measures were implemented, whichever is later • Applications received from 2017 onwards will be retroactive to date application is deemed complete or when BMP measures were implemented, whichever is later 33
Thank You Visit isit www.stormwaterc rcharg rge.ca ca Charge Estimator • Reports and Policies • Request for Review of Stormwater Charge Assessment • Credit Program • More Information • Cont ontact ct us us a at s stor ormwater@mi mississaug uga.ca ca
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