Well interference occurs when pumping from one well affects the water supply available to another nearby well.
Well Interference Claim
The Region of Waterloo updated its Well Interference Policy for well owners. Learn what the policy covers, who may be affected, how claims are assessed, and how to submit a well interference claim.
On this page
- What the policy covers
- How to submit a well interference claim
- What to expect after submitting a claim
- Links to policy documents
- Frequently asked questions
What does the policy cover?
The policy applies to private well owners who believe that water taking from a supply well operated by the Region of Waterloo has affected the quantity and/ or quality of water available from a private Well.
Potential concerns may include
- Reduced water quantity
- Loss of water supply
- Changes in well performance
- Other impacts that may be related to Regional groundwater taking
The Process:
Step 1: Submit a claim
If you believe your private well has been impacted by Regional groundwater taking, contact the Region.
You can also contact us by phone by calling 519-575-4400, chat, or email at regionalinquiries@regionofwaterloo.ca.
Well interference claim form Call Service First Contact Centre
Step 2: Preliminary assessment
An independent consultant reviews available information to determine whether the claim falls within the scope of the policy and whether further investigation is required.
Residents will receive a written response within five calendar days.
Step 3: Site visit
If additional investigation is needed, a consultant and licensed well technician will visit the property to:
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Review site conditions
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Inspect well and associated equipment, where accessible
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Review available well records
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Discuss concerns with the property owner
Step 4: Technical evaluation
The consultant reviews available information including well records, Regional pumping data, groundwater monitoring information, site observations and information provided by the homeowner.
A technical evaluation report is generally provided within 21 calendar days of the site visit.
Step 5: Resolution
If Regional groundwater pumping is determined to have likely caused or contributed to the issue, recommendations may be made to restore an adequate water supply.
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Confirmation that your claim has been received
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Review by an independent consultant
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Written communication on assessment results
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A site visit if required
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A technical evaluation and written findings
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Information about recommended solutions if interference is confirmed
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Information about appeal options if you disagree with the outcome
If there is no water available from your well, the Region may provide a temporary emergency water supply while the claim is being reviewed.
Well owners who believe their well may have been impacted by Regional groundwater pumping activities.
Contact Service First at 519-575-4400 or use the online claim form.
What happens if I have no water?
The Region may provide a temporary emergency water supply while the claim is being assessed.
How long does the process take?
A preliminary assessment is generally completed within five calendar days. If further investigation is required, a technical evaluation is typically completed within 21 calendar days of the site visit.
Will someone visit my property?
Yes. If additional investigation is required, a consultant and licensed well technician may conduct a site visit.
What happens if Regional pumping is found to be the cause?
The Region, the Consultant team and the licensed well technician will work with you to identify an appropriate solution to restore an adequate water supply.
Yes. Appeals must be submitted within 30 calendar days of receiving the decision.
Who can I contact for more information?
Call Service First Contact Centre at 519-575-4400.
