Water Well Location Mapping
The locations of the wells are identified in the field, verified against available Well Records and plotted on well-location maps based on GPS coordinates.
Water-Well Construction Reports
In accordance to O. Reg. 903, amended to O. Reg. 372/07, every person constructing or abandoning a well shall make, and have available for inspection at the well site:
· a log of overburden and bedrock materials
· field notes that include an up-to-date record of the construction or abandonment of the well
A person is not required to have a log of overburden and bedrock materials if:
· the person is constructing a well by the use of a driven point
· the person is altering a well without deepening it
· the person is only installing a pump
· the person is abandoning a well
Water Quality
Drinking Water Wells
If you have a private well that only supplies drinking water to your household, you do not have to meet any drinking water regulations, although you are required to ensure that water is potable. It is strongly advised that everyone test their well water at least three times a year, and after major plumbing work or after a flood.
Well owners are legally responsible for wells on their property, and should be familiar with the laws that affect them. Ontario's Wells Regulation (Reg. 903) sets rules for who can construct or work on a well and construction standards for all new wells. If you own a water system (including a well) that supplies water to multiple residences, a common space or a local business, you may be required to meet certain requirements under the Drinking Water Systems Regulation. It is important to find out if your system is captured under this regulation. Regulated systems must meet the requirements of Ontario's Safe Drinking Water Act, 2002 and its regulations.
As of August 1, 2003, all new drinking water wells constructed in Ontario must be affixed with a well tag.
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1. Alkalinity |
13. Manganese |
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2. Aluminium |
14. Methane |
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3. Chloride |
15. Odour |
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4. Chlorine Dioxide |
16. Organic Nitrogen |
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5. Colour |
17. pH |
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6. Copper |
18. Sulphate |
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7. Dissolved Organic Carbon |
19. Sulphide |
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8. Fluoride |
20. Taste |
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9. Free Chlorine Residual |
21. Temperature |
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10. Free Chlorine Residual with Total Chlorine Residual measured for the purpose of determining Combined Chlorine Residual |
22. Total Dissolved Solids |
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11. Hardness |
23. Turbidity |
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12. Iron |
24. Zinc |
Groundwater Monitoring Wells
Groundwater samples are collected and tested in accordance to Ministry of the Environment Methods of Sampling and Testing at Contaminated Sites in Ontario.
For purposes of assessing the environmental condition and cleanup, and the filing of a Record of Site Condition, groundwater should be tested for parameters presented in “Soil, Groundwater and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act, March 2004” MOE publication.
Water quality data obtained from testing groundwater collected in water wells or monitoring wells is inserted in a database consists of a location file with information for each unique sampling site and a file with the results of chemical analyses.
Groundwater Level Measurement
Water level can be measured at the time a well was drilled, throughout the use of the well, at the time of projected aquifer testing, prior to well abandonment, and during contaminated-sites investigations.
Water level in wells can be measured regularly to determine seasonal and barometric variations, using manual or automated methods, and periodically, to serve targeted purposes.
