Daniel A. Walker 🇨🇦🇺🇦🇬🇱🌻😷💉🚴🏻
@danwalker9999
Retired geoscientist. 🪨💦⚒️🧭🗺️📈. Mineral exploration. Investigation and remediation of contaminated soil/water/sediment. PhD in hydrogeology.
Joined January 2017
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