Support Options

  • Knowledge Base

    Find information on common questions and issues.

  • Support Messages

    Check on the status of your correspondences with members of the QUBES team.

Contact Us

About you
About the problem

Water Quality Investigation (Project EDDIE)

By Melissa Hage

Oxford College of Emory University

This multi-part module aims to help you learn about water quality implications by understanding the variability of concentrations of nitrate in stream water through the evaluation of real-time data and identifying the reasons for this variability.

Listed in Teaching Materials | resource by group Project EDDIE Faculty Mentoring Network

Additional materials available

Version 1.0 - published on 18 Feb 2020 doi:10.25334/C4C3-3S91 - cite this

Licensed under CC Attribution-ShareAlike 4.0 International according to these terms

Adapted from: Water Quality Module (Project EDDIE) v 1.0


Water is one of the Earth’s most precious resources, and is involved in many biogeochemical processes. Human activities often lead to problems with water quality. Concentrations of dissolved substances in freshwater varies over time and space, and depends on surrounding anthropogenic factors. Water quality significantly impacts not only ecosystem health (plants, animals, microorganisms, and other species) but also humans who depend on freshwater resources for recreation, tourism, and our very basic needs of waste management and drinking water.

This multi-part module that will be completed over 2 75-min class periods aims to help you understand the variability of concentrations of dissolved substances in stream water and identify some reasons for this variability. You will learn how to find publicly available water quality data. You will explore and evaluate water quality concerns with real-time data from regulatory entities, and learn about water quality ecosystem and human health implications.

Learning Objectives: 

  • Understand the variability of concentrations of dissolved substances in stream water and identify some reasons for this variability.
  • Find regulatory guidelines for nitrate concentrations in surface water, find real-time nitrate concentration data, and recognize when observed concentrations exceed guidelines
  • Evaluate natural and anthropogenic factors that cause the concentrations of nitrate to change over time
  • Define the meaning of “statistical probability,” and use this term as a regulatory tool to evaluate a potential drinking water resource
  • Evaluate nitrate trends in urban vs. rural environments and formulate a statement relating water quality and land use.    

Project EDDIE (Environmental Data-Driven Inquiry & Exploration) is a community effort aimed at developing teaching resources and instructors that address quantitative reasoning and scientific concepts using open inquiry of publicly available data. Project EDDIE modules are designed with an A-B-C structure to make them flexible and adaptable to a range of student levels and course structures.


Cite this work

Researchers should cite this work as follows:


Project EDDIE Faculty Mentoring Network

Project EDDIE Faculty Mentoring Network group image

When watching a resource, you will be notified when a new version is released.