Multi-dimensional water quality assessment of an urban drinking water source elucidated by high resolution underwater towed vehicle mapping

Alan Lock*, Graeme Spiers, Blair Hostetler, James Ray, Dirk Wallschlaeger

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    Spatial surveys of Ramsey Lake, Sudbury, Ontario water quality were conducted using an innovative underwater towed vehicle (UTV) equipped with a multi-parameter probe providing real-time water quality data. The UTV revealed underwater vent sites through high resolution monitoring of different spatial chemical characteristics using common sensors (turbidity, chloride, dissolved oxygen, and oxidation/reduction sensors) that would not be feasible with traditional water sampling methods. Multi parameter probe vent site identification is supported by elevated alkalinity and silica concentrations at these sites. The identified groundwater vent sites appear to be controlled by bedrock fractures that transport water from different sources with different contaminants of concern. Elevated contaminants, such as, arsenic and nickel and/or nutrient concentrations are evident at the vent sites, illustrating the potential of these sources to degrade water quality. (C) 2016 Elsevier Ltd. All rights reserved.

    Original languageEnglish
    Pages (from-to)289-295
    Number of pages7
    JournalWater Research
    Volume93
    DOIs
    Publication statusPublished - 15 Apr 2016

    Keywords

    • Monitoring
    • UTV
    • Vent detection
    • Water quality
    • Source water protection

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