Stormwater Charge

Newmarket's Stormwater Management Program


Municipal Office

395 Mulock Drive P.O. Box 328 Station Main, Newmarket, Ontario
L3Y 4X7

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​​​​​​​​​​​​​​​​​​​​​​​​​​​​​The Town of Newmarket implemented the stormwater charge in 2017.  Before the implementation, stormwater was funded through your property taxes and water bill. 

The stormwater charge represents a shift to 'user pay' where properties that produce more stormwater runoff (i.e. commercial and industrial properties) will pay more. 

Find out your stormwater charge by using the stormwater charge estimator​

The stormwater charge is like opening a separate savings account for stormwater and setting aside funds. This will ensure there is enough money for future stormwater management improvements. Municipalities such as Mississauga, Richmond Hill, Kitchener and Vaughan have a separate charge for stormwater. 

Please view the video below to learn more about the stormwater charge and how stormwater management will benefit the community and the environment. 


  The following links help provide more information on stormwater management and the stormwater charge. 
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Stormwater Charge Formula 

The stormwater charge is calculated based on the size of your property and the runoff level group rate.  Runoff levels are divided into three groups:  high, medium and low.  Commercial and industrial properties are classified as high, residential properties are classified as medium and natural areas are classified as low.  We use the following formula to calculate your stormwater charge:

Size of property x runoff level group rate = stormwater charge

The table below shows how runoff level group rates are assigned to different property types.   

Stormwater Charge Runoff Level Group Rate Estimates ​​

​Low runoff level ​group​Medium runoff level group​High runoff level group
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​Examples: natural areas, vacant properties, golf courses etc.​Examples: residential and institutional properties.​​Examples: Commercial, industrial and mixed-use buildings. 
​$0.013300 per square metre

$0.001236 per square foot

​$0.065045 per square metre

$0.006043 per square foot

​$0.130091 per square metre

$0.012086 per square foot​​

Additional Resources: