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Well User Resource Toolkit

Toolkit contents

Well water contaminants

Oregon contaminant map

Data visualization: Learn about the most commonly found contaminants in Oregon groundwater and where these contaminants are found around the state.

Print materials

  • Nitrate /  Nitrato (Spanish)
    Fact sheet: Basic information on Nitrate in well water, health impacts and interpreting results.

  • Total Coliform Bacteria
    Fact sheet: Basic information on bacteria in well water, health impacts and interpreting results.

  • Sulfur / Sulfuro (Spanish)
    Fact Sheet: Basic information about Sulfur in well water, impacts on the home, finding the sources and treatment

Online resources

  • Unregulated contaminants
    Webpage: Drinking Water Services provides information on potentially concerning contaminants that are currently unregulated.

Helpful contacts

  • Domestic Well Safety Program
    Contact us: Ask questions about the Real Estate Transaction Law, reported test results, data, print materials and more!

Owning a well

  • Well checklist 
    Checklist: Oregon State University Extension Office checklist for well owner

  • The Private Well Class
    Free online learning: Helps homeowners understand and care for their water well provided by the University of Illinois, through a grant from the EPA.
  • Well Owner Lessons
    Free online learning: A series of online lessons and webinars from the National Groundwater Association's on how to keep your drinking water supply safe.


  • Prevent contamination
    Webpage: Tips from The National Groundwater Association on how to prevent contamination.



Treatment options based on well water test results:

Wells in an emergency




Newsletters and networks

  • Well Owner Tip Sheet: Monthly newsletter from the National Groundwater Association about tools that can help private well owners reduce risks to their water supplies. Sign up at
  • Pipeline: A National Drinking Water Clearing House Newsletter with quarterly editions on wastewater topics.
  • The Aquifer: Quarterly newsletter from the Groundwater Foundation.
  • Groundwater Guardian: A Groundwater Foundation newsletter that provides support and encouragement for communities of all types (cities, counties, watersheds, schools, etc.) to begin groundwater awareness activities, motivation to continue these efforts, and recognition for their achievements.
  • WellCare Well Owners Network: E-mail mailing list maintained by the Water Systems Council.
  • WellSaid: A production of the Oregon Water Resources Department designed to inform the drilling industry and the public about program activities and other items of interest. 


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