Water source & treatment
Treatment differs across Woodstock’s facilities. Thornton uses ultraviolet disinfection and gas chlorination; Southside uses chlorine-based disinfection; Sutherland includes iron-removal filtration; and Trillium Line uses sodium hypochlorite. The County classifies six wells as groundwater under the direct influence of surface water and five as secure groundwater. Its annual report explains these distinctions and supplies operational results by facility, which should remain labelled rather than being combined into a supposed citywide tap-water value.
What this means for your home
For a Woodstock assessment, hardness testing and existing softener settings deserve attention before equipment is sized. The County’s published hardness range spans different source and operating conditions. Do not program a softener using the highest value without checking the property’s supply. If staining or taste is the concern, record where it occurs and review the existing treatment history. Velora can separate the household’s measured needs from background source characteristics and recommend a maintainable setup.
Profile scope
Oxford County Woodstock municipal system; report values are not applicable to an untested private well.
Sampling context
- Hardness, historical system range: 269–515 mg/L. Range stated in 2025 report from historical running averages and operating conditions; not a 2025 household sample. Source report
- Distribution chlorine residual: 0.29–2.53 mg/L. 2025 continuously monitored distribution operational range; average 1.13 mg/L. Source report
Official sources
- Woodstock 2025 annual drinking water system summary report (2025)
- Oxford County drinking water overview
Photograph credit
Downtown Woodstock facing City Hall, Ontario. Countyeditor · Wikimedia Commons. CC BY-SA 3.0. Resized and converted to WebP; may be displayed cropped.