Grand River Assessment Report

The Grand River Assessment Report provides the scientific basis of the Grand River Source Protection Plan.

The Assessment Report:

Describes the Grand River watershed.
Identifies the vulnerable areas related to drinking water sources.
Identifies the types and number of threats to water quality and quantity.
Ranks the potential threats as low, moderate or significant.

The Tables of Drinking Water Threats are used to identify and rank potential significant drinking water threats in the assessment report.

Assessment report chapters

Please note the following documents may not be accessible to people with disabilities. If you have a disability and require a document in an alternate format, please contact us.

Chapter 1 (PDF - 336 KB): Introduction
Chapter 2 (PDF - 8 MB): Watershed Characterization
Chapter 3 (PDF - 1 MB): Water Quality Threat Assessment Methodology
Chapter 4 (PDF - 1 MB): County of Grey
Chapter 5 (PDF - 9 MB): County of Dufferin
Chapter 6 (PDF - 11 MB): Wellington County
Chapter 7 (PDF - 15 MB): City of Guelph
Chapter 8: Region of Waterloo (8 sections)
- Chapter 8.1 (PDF - 641 KB): Water Quality Risk Assessment
- Chapter 8.2 (PDF - 12 MB): Waterloo Area Wellfields
- Chapters 8.3 and 8.4 (PDF - 30 MB): Kitchener Area Wellfields and Hidden Valley Intake
- Chapter 8.5 (PDF - 19 MB): Cambridge Area Wellfields
- Chapter 8.6 (PDF - 11 MB): Rural Area Wellfields
- Chapters 8.7 and 8.8 (PDF - 210 KB): Limitations, Data Gaps, Uncertainty and Summary
Chapter 9 (PDF - 600 KB): Region of Halton
Chapter 10 (PDF - 3 MB): County of Perth
Chapter 11 (PDF - 9 MB): County of Oxford
Chapter 12 (PDF - 1 MB): City of Hamilton
Chapter 13 (PDF - 4 MB): County of Brant
Chapter 14 (PDF - 5 MB): City of Brantford
Chapter 15 (PDF - 10 MB): Six Nations of the Grand River
Chapter 16 (PDF - 5 MB): Haldimand County
Chapter 17 (PDF - 228 KB): Water Budget Framework and Methodology
Chapter 18 (PDF - 1 MB): Tier 2 Water Budget Results
Chapter 19 (PDF - 5 MB): Region of Waterloo Tier 3 Water Budget and Risk Assessment
Chapter 20 (PDF - 4 MB): Whitemans Creek Tier 3 Water Budget and Risk Assessment
Chapter 21 (PDF - 388 KB): Orangeville and Amaranth Tier 3 Water Quantity Risk Assessment
Chapter 22 (PDF - 4 MB): Centre Wellington Tier 3 Water Budget and Risk Assessment
Chapter 23 (PDF - 687 KB): Halton Hills Tier 3 Water Budget and Risk Assessment
Chapters 24-26 (PDF - 260 KB): State of Climate Change Research; Consideration of Great Lakes Agreements; Conclusion
Chapters 27-28 (PDF - 347 KB): References, Map References

Contact Us

Lake Erie Source Protection Region
c/o Grand River Conservation Authority
400 Clyde Road, PO Box 729
Cambridge ON. N1R 5W6
Phone: 519-621-2761
Fax: 519-621-4844
info@sourcewater.ca

Read our latest news

Stay up to date on our latest news.

News