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Assessment Reports 

Assessment reports are the foundation for the development of sourceImage of the Cover of the Assessment Report for the Hamilton Region protection plans. Much research and many technical studies were completed to characterize the drinking water resources of the Halton Region and the Hamilton Region Source Protection Areas.  The best available scientific information was used in preparing the reports. The assessment report for each Area summarizes the findings of this background work and characterizes the watershed by reporting on its:

  • Physical and human geography – including landforms, land cover, population distribution and land use
  • Soil and bedrock geology
  • Watershed and subwatershed descriptions
  • Meteorological conditions
  • Monitoring programs – meteorological, surface water and groundwater
  • Water use
  • Water budgets and stresses on the water resources in each subwatershed
  • Risks to the sustainability of the water sources
  • Vulnerability assessments of municipal surface water and groundwater systems
  • Issues and threats to the municipal drinking water sources

The delineation of vulnerable areas where certain activities could negatively impact the quality and/or quantity of the Areas’ sources of drinking water lead to the identification of activities occurring now and those that may occur in the future. The assessment reports identify the risks to municipal drinking water sources from these activities and the source protection plans contain policies to address these specific threats. 



The Halton Region Assessment Report was previously amended to include study findings on the Kelso, Campbellville and neighbouring Cedarvale well fields, including the results of the water sustainability studies and the new geographic protection areas for the drinking water sources.  The report was recently revised to fix some typographic errors, add some clarity of terms, etc.  The revised document can be reviewed here and revised Figure 4.4 here

Now we are proposing to update the Hamilton Region Assessment Report to include the findings from two studies undertaken in Greensville.  The City of Hamilton has completed studies to include a back-up municipal well to supply a portion of the community of Greensville with water.  Concurrent with their studies, a revision of the vulnerability and threats assessments for the two municipal wells was completed, in addition to an update to the Tier 3 water budget and water quantity risk assessment.  

We have released a marked-up version of the Hamilton Region assessment report for ease of review along with the revised figures and are consulting on the proposed changes to this report and the source protection plan until December 1, 2017.  The proposed amendments are provided in a summary table with minor revisions made to fix typographical errors, provide clarity of terms, etc. The revised figures are:

Section 34 updates - 5-4, 5-11, 5-12, 6-9, 6-11, 6-12, 7-1, 7-5, 7-9, D-1

Section 51 fixes - 4-4, 4-7, 7-4, 7-11

Please provide your feedback to the Halton-Hamilton Source Protection Committee through sourceprotection@hrca.on.ca or by calling Diane Bloomfield, Manager, at 905-854-9229 extension 223.  We also encourage you to attend the Public Information Centre scheduled for November 16 between 4 and 8 p.m. at Christ Church, 92 Highway #8, Flamborough.

If you would like to review a printed copy of the report please contact us or visit us at 4052 Milburough Line, R.R. 2, Campbellville.

The approved assessment reports can be viewed and downloaded by clicking on the following links:

Halton Region Source Protection Area

Hamilton Region Source Protection Area

If you require a copy of the assessment reports in another format, please e-mail sourceprotection@hrca.on.ca  or call 905-854-9229.



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